阅读说明：本技术 一种高性能改性塑料制品成型装置及其制备方法 (High-performance modified plastic product forming device and preparation method thereof ) 是由 蔡光辉 于 2021-07-28 设计创作，主要内容包括：本发明提出一种高性能改性塑料制品成型装置,包括周转箱成型的成型模具,向成型模具内注塑熔融塑料的注塑装置,以及对成型的周转箱进行输送收集的输送收集装置；所述输送收集装置包括对周转箱进行输送的物料输送带,和对周转箱进行堆叠的堆叠装置；本发明通过自动化堆叠周转箱,提高自动化程度,降低人工成本。本发明还提出一种高性能改性塑料制品制备方法。(The invention provides a high-performance modified plastic product forming device, which comprises a forming die for forming a turnover box, an injection molding device for injecting molten plastic into the forming die, and a conveying and collecting device for conveying and collecting the formed turnover box; the conveying and collecting device comprises a material conveying belt for conveying the turnover boxes and a stacking device for stacking the turnover boxes; according to the invention, the turnover boxes are automatically stacked, so that the automation degree is improved, and the labor cost is reduced. The invention also provides a preparation method of the high-performance modified plastic product.)

1. A high performance modified plastic products forming device which characterized in that: the device comprises a forming die for forming the turnover box, an injection molding device for injecting molten plastic into the forming die, and a conveying and collecting device for conveying and collecting the formed turnover box; the conveying and collecting device comprises a material conveying belt for conveying the turnover boxes and a stacking device for stacking the turnover boxes; the stacking device comprises a turnover table for placing the turnover box, a gripping device for gripping the turnover box, a first lifting driving device for driving the gripping device to lift, and a first moving driving device for driving the gripping device to move between the turnover table and the material conveying belt; the material conveyer belt has feed end and discharge end, the turnover platform is in one side of material conveyer belt discharge end.

2. The forming device of claim 1, wherein: the grabbing device comprises a first grabbing mechanism for grabbing one side of the turnover box, a second grabbing mechanism for grabbing the other side of the turnover box and a first opening and closing driving device for driving the first grabbing mechanism and the second grabbing mechanism to open and close.

3. The forming device of claim 2, wherein: the first grabbing mechanism comprises a first bearing plate bearing at the lower end of the upper edge of the turnover box and a first lifting mechanism driving the first bearing plate to lift; the first lifting mechanism comprises a first mounting block, a second mounting block, a first screw rod, a first auxiliary rod and a first lifting motor, one end of the first screw rod penetrates through the first bearing plate and is rotatably connected to the second mounting block, the other end of the first screw rod penetrates through the first mounting block and is connected with the output end of the first lifting motor, one end of the first auxiliary rod penetrates through the first bearing plate and is connected to the second mounting block, and the other end of the first auxiliary rod is connected to the first mounting block;

the second grabbing mechanism comprises a second bearing plate bearing at the lower end of the upper edge of the turnover box and a second lifting mechanism driving the second bearing plate to lift; the second lifting mechanism comprises a third mounting block, a fourth mounting block, a second lead screw, a second auxiliary rod and a second lifting motor, one end of the second lead screw penetrates through the second receiving plate and is rotatably connected to the fourth mounting block, the other end of the second lead screw penetrates through the third mounting block and is connected with the output end of the second lifting motor, one end of the second auxiliary rod penetrates through the second receiving plate and is connected to the fourth mounting block, and the other end of the second auxiliary rod is connected to the third mounting block.

4. The forming device of claim 3, wherein: a plurality of first accommodating grooves are formed in the upper surface of the first bearing plate, and each first accommodating groove is internally provided with a first clamping protrusion clamped in a groove on one side of the upper edge of the turnover box and a first clamping driving mechanism for driving the first clamping protrusion to stretch in the first accommodating groove; the upper surface that the board was accepted to the second forms a plurality of second holding tanks, is equipped with the second joint arch of joint in the recess of edge opposite side on the turnover case in each second holding tank, and drives the protruding flexible second joint actuating mechanism in the second holding tank of second joint.

5. The forming device of claim 1, wherein: the forming die comprises a movable die, a fixed die, a second lifting driving device for driving the movable die to close the fixed die, and a second moving driving device for driving the movable die to move between the fixed die and the material conveying belt; and a forming groove for accommodating the movable mold is formed in the upper surface of the fixed mold, and a forming cavity for forming the turnover box is formed after the movable mold and the fixed mold are assembled.

6. The forming device of claim 1, wherein: the injection molding device comprises an injection molding barrel, a screw rod arranged in the injection molding barrel and used for outputting raw materials, an injection molding motor driving the screw rod to rotate, and a feeding hopper feeding materials into the injection molding barrel.

7. The forming device of claim 1, wherein: the separation device is used for separating the stacked turnover boxes one by one; the separating device comprises a force application device for applying force to each adjacent turnover box, a third lifting driving device for driving the force application device to lift, and a third moving driving device for driving the force application device to move.

8. The forming device of claim 7, wherein: the force application device comprises a first separation mechanism for separating one side of each adjacent turnover box, a second separation mechanism for separating the other side of each adjacent turnover box, and a second opening and closing driving device for driving the first separation mechanism and the second separation mechanism to open and close.

9. The forming device of claim 8, wherein: the first separating mechanism comprises a first upper separating part contacted with the lower end of the upper edge of the upper turnover box, a first lower separating part contacted with the upper end of the upper edge of the lower turnover box, and a first separating driving device for driving the first upper separating part to ascend and driving the first lower separating part to descend;

the first separation driving device comprises a first gear, a second gear and a third gear which are meshed with each other, a first separation motor for driving the first gear to rotate, a third screw rod connected with the second gear, a fourth screw rod connected with the third gear, a first upper slide rail for guiding the first upper separation part, and a first lower slide rail for guiding the first lower separation part; one end of the first upper separation part is provided with a first upper chute, the first upper separation part is in sliding connection with a first upper sliding rail through the first upper chute, one end of the first lower separation part is provided with a first lower chute, the first lower separation part is in sliding connection with the first lower sliding rail through the first lower chute, the third screw rod penetrates through the first upper separation part and is in rotating connection with the first upper separation part, the fourth screw rod penetrates through the first lower separation part and is in rotating connection with the first lower separation part, and the rotating directions of the external thread of the third screw rod and the external thread of the fourth screw rod are the same;

the second separation mechanism comprises a second upper separation part in contact with the lower end of the upper edge of the upper turnover box, a second lower separation part in contact with the lower end of the upper edge of the lower turnover box, and a second separation driving device for driving the second upper separation part to ascend and driving the second lower separation part to descend;

the second separation driving device comprises a fourth gear, a fifth gear and a sixth gear which are meshed with each other, a second separation motor for driving the fourth gear to rotate, a fifth screw rod connected with the fifth gear, a sixth screw rod connected with the sixth gear, a second upper slide rail for guiding the second upper separation part, and a second lower slide rail for guiding the second lower separation part; the one end of separation portion has the second and goes up the spout, the separation portion passes through spout and second last slide rail sliding connection on the second, the one end of separation portion has spout under the second, the second is slide rail sliding connection under the second through spout and the second down under the separation portion, the fifth lead screw passes the separation portion on the second and rotates with the separation portion on the second to be connected, the sixth lead screw passes separation portion under the second and rotates with the separation portion under the second to be connected, the external screw thread of fifth lead screw and the external screw thread of sixth lead screw revolve to the same.

10. A method for preparing a high-performance modified plastic product forming device based on any one of claims 1 to 9, which is characterized by comprising the following steps:

(1) the injection molding device injects the molten plastic into the forming mold;

(2) cooling and molding the molten plastic in the molding die to form a turnover box;

(3) opening the forming die, taking out the turnover boxes, and outputting and stacking the turnover boxes one by one through the conveying and collecting device;

in the step (1), the forming die comprises a movable die, a fixed die, a second lifting driving device for driving the movable die to close the fixed die, and a second moving driving device for driving the movable die to move between the fixed die and the material conveying belt; a molding groove for accommodating the movable mold is formed in the upper surface of the fixed mold, the second lifting driving device drives the movable mold to descend into the molding groove, and the movable mold and the fixed mold are assembled to form a molding cavity for molding the turnover box;

in the step (3), the turnover box is moved to the position above the material conveying belt through the second moving driving device and is subjected to demolding, the material conveying belt conveys the turnover box to the grabbing station of the stacking device, the first lifting driving device drives the grabbing device to descend to enable the grabbing device to grab the turnover box, after the turnover box ascends, the first moving driving device drives the grabbing device to move to the position above the turnover table, the turnover box descends and is placed on the turnover table, circulation operation is performed, the turnover boxes are stacked one by one, and the stacked turnover box is convenient to transport and store.

Technical Field

The invention relates to the technical field of plastic product molding, in particular to a high-performance modified plastic product molding device and a preparation method thereof.

Background

The turnover box is also called as a logistics box, is widely used in the industries of machinery, automobiles, household appliances, light industry, electronics and the like, can resist acid, alkali and oil stain, is nontoxic and tasteless, can be used for containing food and the like, is convenient to clean, and is convenient to turnover parts, orderly to stack and convenient to manage. The system has reasonable design and excellent quality, and is suitable for links such as transportation, distribution, storage, circulation processing and the like in factory logistics.

After the turnover box is formed, the turnover box needs to be transported and stacked, so that the turnover box is convenient to store and transport in sequence, the turnover box is usually manually stacked in the prior art, the automation degree is low, and the labor cost is increased.

Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.

Disclosure of Invention

An object of the embodiments of the present invention is to provide a high-performance modified plastic product molding apparatus, so as to solve the problems of low automation degree of manual stacking and increased labor cost in the background art.

The embodiment of the invention provides a preparation method of a high-performance modified plastic product, which comprises the steps of injecting molten plastic into a forming mold through an injection molding device, outputting turnover boxes one by one through a conveying and collecting device after cooling and forming, demoulding the turnover boxes by moving the turnover boxes to the position above a material conveying belt through a second moving driving device, conveying the turnover boxes to a grabbing station of a stacking device through the material conveying belt, driving the grabbing device to descend through a first lifting driving device to enable the grabbing device to grab the turnover boxes, driving the grabbing device to move to the position above a turnover table after ascending, descending and placing the turnover boxes on the turnover table, performing circulating operation, stacking the turnover boxes one by one, and facilitating subsequent transportation and storage of the stacked turnover boxes.

In order to achieve the purpose, the invention adopts the following technical scheme:

a high-performance modified plastic product forming device comprises a forming die for forming a turnover box, an injection molding device for injecting molten plastic into the forming die, and a conveying and collecting device for conveying and collecting the formed turnover box; the conveying and collecting device comprises a material conveying belt for conveying the turnover boxes and a stacking device for stacking the turnover boxes;

the stacking device comprises a turnover table for placing the turnover box, a gripping device for gripping the turnover box, a first lifting driving device for driving the gripping device to lift, and a first moving driving device for driving the gripping device to move between the turnover table and the material conveying belt; the material conveyer belt has feed end and discharge end, the turnover platform is in one side of material conveyer belt discharge end.

Furthermore, the grabbing device comprises a first grabbing mechanism for grabbing one side of the turnover box, a second grabbing mechanism for grabbing the other side of the turnover box, and a first opening and closing driving device for driving the first grabbing mechanism and the second grabbing mechanism to open and close.

Further, the first grabbing mechanism comprises a first bearing plate bearing at the lower end of the upper edge of the turnover box and a first lifting mechanism driving the first bearing plate to lift; the first lifting mechanism comprises a first mounting block, a second mounting block, a first screw rod, a first auxiliary rod and a first lifting motor, one end of the first screw rod penetrates through the first bearing plate and is rotatably connected to the second mounting block, the other end of the first screw rod penetrates through the first mounting block and is connected with the output end of the first lifting motor, one end of the first auxiliary rod penetrates through the first bearing plate and is connected to the second mounting block, and the other end of the first auxiliary rod is connected to the first mounting block;

the second grabbing mechanism comprises a second bearing plate bearing at the lower end of the upper edge of the turnover box and a second lifting mechanism driving the second bearing plate to lift; the second lifting mechanism comprises a third mounting block, a fourth mounting block, a second lead screw, a second auxiliary rod and a second lifting motor, one end of the second lead screw penetrates through the second receiving plate and is rotatably connected to the fourth mounting block, the other end of the second lead screw penetrates through the third mounting block and is connected with the output end of the second lifting motor, one end of the second auxiliary rod penetrates through the second receiving plate and is connected to the fourth mounting block, and the other end of the second auxiliary rod is connected to the third mounting block.

Furthermore, a plurality of first accommodating grooves are formed in the upper surface of the first bearing plate, and each first accommodating groove is internally provided with a first clamping protrusion clamped in a groove on one side of the upper edge of the turnover box and a first clamping driving mechanism for driving the first clamping protrusion to stretch in the first accommodating groove; the upper surface that the board was accepted to the second forms a plurality of second holding tanks, is equipped with the second joint arch of joint in the recess of edge opposite side on the turnover case in each second holding tank, and drives the protruding flexible second joint actuating mechanism in the second holding tank of second joint.

Further, the forming die comprises a movable die, a fixed die, a second lifting driving device for driving the movable die to close the fixed die, and a second moving driving device for driving the movable die to move between the fixed die and the material conveying belt; and a forming groove for accommodating the movable mold is formed in the upper surface of the fixed mold, and a forming cavity for forming the turnover box is formed after the movable mold and the fixed mold are assembled.

Further, the injection molding device comprises an injection molding barrel, a screw rod arranged in the injection molding barrel and used for outputting the raw materials, an injection molding motor driving the screw rod to rotate, and a feeding hopper feeding the injection molding barrel.

Further, the device also comprises a separating device for separating the stacked turnover boxes one by one; the separating device comprises a force application device for applying force to each adjacent turnover box, a third lifting driving device for driving the force application device to lift, and a third moving driving device for driving the force application device to move.

Further, the force application device comprises a first separation mechanism for separating one side of each adjacent turnover box, a second separation mechanism for separating the other side of each adjacent turnover box, and a second opening and closing driving device for driving the first separation mechanism and the second separation mechanism to open and close.

Further, the first separating mechanism comprises a first upper separating part contacted with the lower end of the upper edge of the upper turnover box, a first lower separating part contacted with the upper end of the upper edge of the lower turnover box, and a first separating driving device for driving the first upper separating part to ascend and driving the first lower separating part to descend;

the first separation driving device comprises a first gear, a second gear and a third gear which are meshed with each other, a first separation motor for driving the first gear to rotate, a third screw rod connected with the second gear, a fourth screw rod connected with the third gear, a first upper slide rail for guiding the first upper separation part, and a first lower slide rail for guiding the first lower separation part; one end of the first upper separation part is provided with a first upper chute, the first upper separation part is in sliding connection with a first upper sliding rail through the first upper chute, one end of the first lower separation part is provided with a first lower chute, the first lower separation part is in sliding connection with the first lower sliding rail through the first lower chute, the third screw rod penetrates through the first upper separation part and is in rotating connection with the first upper separation part, the fourth screw rod penetrates through the first lower separation part and is in rotating connection with the first lower separation part, and the rotating directions of the external thread of the third screw rod and the external thread of the fourth screw rod are the same;

the second separation mechanism comprises a second upper separation part in contact with the lower end of the upper edge of the upper turnover box, a second lower separation part in contact with the lower end of the upper edge of the lower turnover box, and a second separation driving device for driving the second upper separation part to ascend and driving the second lower separation part to descend;

the second separation driving device comprises a fourth gear, a fifth gear and a sixth gear which are meshed with each other, a second separation motor for driving the fourth gear to rotate, a fifth screw rod connected with the fifth gear, a sixth screw rod connected with the sixth gear, a second upper slide rail for guiding the second upper separation part, and a second lower slide rail for guiding the second lower separation part; the one end of separation portion has the second and goes up the spout, the separation portion passes through spout and second last slide rail sliding connection on the second, the one end of separation portion has spout under the second, the second is slide rail sliding connection under the second through spout and the second down under the separation portion, the fifth lead screw passes the separation portion on the second and rotates with the separation portion on the second to be connected, the sixth lead screw passes separation portion under the second and rotates with the separation portion under the second to be connected, the external screw thread of fifth lead screw and the external screw thread of sixth lead screw revolve to the same.

A preparation method of a high-performance modified plastic product comprises the following steps:

(1) the injection molding device injects the molten plastic into the forming mold;

(2) cooling and molding the molten plastic in the molding die to form a turnover box;

(3) opening the forming die, taking out the turnover boxes, and outputting and stacking the turnover boxes one by one through the conveying and collecting device;

in the step (1), the forming die comprises a movable die, a fixed die, a second lifting driving device for driving the movable die to close the fixed die, and a second moving driving device for driving the movable die to move between the fixed die and the material conveying belt; a molding groove for accommodating the movable mold is formed in the upper surface of the fixed mold, the second lifting driving device drives the movable mold to descend into the molding groove, and the movable mold and the fixed mold are assembled to form a molding cavity for molding the turnover box;

in the step (3), the turnover box is moved to the position above the material conveying belt through the second moving driving device and is subjected to demolding, the material conveying belt conveys the turnover box to the grabbing station of the stacking device, the first lifting driving device drives the grabbing device to descend to enable the grabbing device to grab the turnover box, after the turnover box ascends, the first moving driving device drives the grabbing device to move to the position above the turnover table, the turnover box descends and is placed on the turnover table, circulation operation is performed, the turnover boxes are stacked one by one, and the stacked turnover box is convenient to transport and store.

After adopting the structure, the high-performance modified plastic product forming device has the following beneficial effects:

1. the injection molding device is used for injection molding of molten plastic into the forming mold, the forming mold is cooled and formed and then is demolded, the turnover box is conveyed to a grabbing station on a material conveying belt, the grabbing device is driven by the first lifting driving device to descend to enable the grabbing device to grab the turnover box, after the turnover box ascends, the grabbing device is driven by the first moving driving device to move to the position above the turnover table, the turnover box descends and is placed on the turnover table, circulation operation is carried out, the turnover boxes are stacked one by one, and the stacked turnover boxes are convenient to transport and store; according to the invention, the turnover boxes are automatically stacked, so that the automation degree is improved, and the labor cost is reduced.

2. The first opening and closing driving device drives the first grabbing mechanism and the second grabbing mechanism to open towards two sides, the first opening and closing driving device drives the first grabbing mechanism and the second grabbing mechanism to close after the first opening and closing driving device moves to a preset position, two sides of the turnover box are clamped tightly, and the purpose of stably grabbing the turnover box is achieved.

3. The first lifting driving device controls the grabbing device to move greatly in the vertical direction, the first lifting mechanism controls the first bearing plate to move slightly in the vertical direction, the second lifting mechanism controls the second bearing plate to move slightly in the vertical direction, so that the first bearing plate is controlled by the first lifting mechanism, and the second bearing plate is controlled by the second lifting mechanism to be accommodated and moved to a proper position to bear the lower end of the upper edge of the turnover box.

4. When the first bearing plate and the second bearing plate extend to the lower end of the upper edge of the turnover box, the first clamping driving mechanism drives the first clamping bulge arranged in the first accommodating groove to move upwards, the second clamping driving mechanism drives the second clamping bulge arranged in the second accommodating groove to move upwards, so that the first clamping bulge and the second clamping bulge are clamped in the groove at the upper edge of the turnover box, the turnover box can be more stably grabbed, the problem of shaking and falling off is avoided, meanwhile, after the turnover box is stacked, the first clamping bulge and the second clamping bulge move downwards into the corresponding accommodating grooves, so that the first bearing plate and the second bearing plate are not obstructed in the outward moving process, the first clamping bulge and the second clamping bulge do not need to extend out of the groove at the upper edge of the turnover box by moving the first bearing plate and the second bearing plate downwards, and the first bearing plate and the second bearing plate are prevented from colliding with the lower edge of the turnover box in the downward moving process, the stacking process is stable and smooth.

The invention also provides a preparation method of the high-performance modified plastic product, which comprises the steps of injecting the molten plastic into a forming die through an injection device, outputting and stacking the turnover boxes one by one through a conveying and collecting device after cooling and forming, moving the turnover boxes to the upper part of a material conveying belt through a second moving driving device and demoulding, conveying the turnover boxes to a grabbing station of a stacking device through the material conveying belt, driving the grabbing device to descend by a first lifting driving device to enable the grabbing device to grab the turnover boxes, driving the grabbing device to move to the upper part of a turnover table after ascending, descending and placing the turnover boxes on the turnover table, and performing circulating operation to stack the turnover boxes one by one, so that the stacked turnover boxes can be conveniently transported and stored subsequently.

Drawings

FIG. 1 is a schematic side view of a high performance modified plastic product molding apparatus according to the present invention;

FIG. 2 is a schematic view of the enlarged partial structure of FIG. 1 at A;

FIG. 3 is a schematic front view of the separating apparatus of the present invention;

FIG. 4 is a schematic view of the enlarged partial structure of FIG. 3 at B;

FIG. 5 is a schematic perspective view of the separating apparatus;

FIG. 6 is an enlarged partial schematic view of FIG. 5 at C;

FIG. 7 is a schematic perspective view of a molding apparatus for high performance modified plastic products according to the present invention;

FIG. 8 is a schematic cross-sectional view of an injection molded tube according to the present invention;

FIG. 9 is a schematic cross-sectional view of an injection head according to the present invention;

fig. 10 is a schematic perspective view of an injection head according to the present invention.

In the figure: the molding die 1, the injection molding device 2, the conveying and collecting device 3, the material conveying belt 31, the stacking device 32, the revolving table 33, the gripping device 34, the first lifting driving device 35, the first moving driving device 36, the first gripping mechanism 37, the second gripping mechanism 38, the first opening and closing driving device 39, the first receiving plate 371, the first lifting mechanism 372, the first mounting block 3721, the second mounting block 3722, the first lead screw 3723, the first lifting motor 3724, the second receiving plate 381, the second lifting mechanism 382, the first clamping protrusion 373, the second clamping protrusion 383, the movable die 11, the fixed die 12, the second lifting driving device 13, the second moving driving device 14, the first side wall 111, the second side wall 112, the telescopic block 113, the injection molding cylinder 21, the injection molding motor 22, the feed hopper 23, the injection molding pipe 24, the injection molding head 25, the injection molding hole 251, the closing mechanism 26, the mounting shaft 261, the closing member 262, and the connecting rod 263, the elastic sealing element 27, the elastic movable opening 271, the backflow prevention mechanism 28, the first connecting block 281, the second connecting block 282, the closing block 283, the elastic connecting element 284, the first through hole 2811, the separating device 4, the force application device 41, the third lifting driving device 42, the third moving driving device 43, the first separating mechanism 44, the second separating mechanism 45, the second opening and closing driving device 46, the first upper separating part 441, the first lower separating part 442, the first separating driving device 443, the first gear 4431, the second gear 4432, the third gear 4433, the first separating motor 4434, the third screw 4435, the fourth screw 4436, the first upper rail 4437, the second upper separating part 451, the second lower separating part 452, the second separating driving device 453, the turnover box 5, and the groove 51.

Detailed Description

In order to further explain the technical solution of the present invention, the following detailed description is given by way of specific examples.

As shown in fig. 1 to 10, the high-performance modified plastic product molding device of the present invention includes a molding die 1 for molding a transfer container 5, an injection device 2 for injecting molten plastic into the molding die 1, and a conveying and collecting device 3 for conveying and collecting the molded transfer container 5; the conveying and collecting device 3 comprises a material conveying belt 31 for conveying the turnover boxes 5 and a stacking device 32 for stacking the turnover boxes 5;

the stacking device 32 comprises a turnover table 33 for placing the turnover boxes 5, a gripping device 34 for gripping the turnover boxes 5, a first lifting driving device 35 for driving the gripping device 34 to lift, and a first moving driving device 36 for driving the gripping device 34 to move between the turnover table 33 and the material conveying belt 31; the material conveying belt 31 has a feeding end and a discharging end, and the turnover table 33 is positioned on one side of the discharging end of the material conveying belt 31.

Thus, the injection device 2 injects molten plastic into the forming mold 1, the forming mold 1 is cooled and formed and then is demolded, the turnover box 5 is conveyed to a grabbing station on the material conveying belt 31, the grabbing device 34 is driven by the first lifting driving device 35 to descend so that the grabbing device 34 grabs the turnover box 5, after ascending, the grabbing device 34 is driven by the first moving driving device 36 to move above the turnover table 33, the turnover box 5 is descended and placed on the turnover table 33, and circulation operation is performed to stack the turnover boxes 5 one by one, so that the stacked turnover boxes 5 can be transported and stored later; according to the invention, the turnover box 5 is automatically stacked, so that the automation degree is improved, and the labor cost is reduced; specifically, the first lifting drive device 35 and the first movement drive device 36 are both driven by an air cylinder.

Preferably, the gripping device 34 includes a first gripping mechanism 37 for gripping one side of the turnover box 5, a second gripping mechanism 38 for gripping the other side of the turnover box 5, and a first opening/closing driving device 39 for driving the first gripping mechanism 37 and the second gripping mechanism 38 to open and close. The first opening and closing driving device 39 drives the first grabbing mechanism 37 and the second grabbing mechanism 38 to open towards two sides, and after the first opening and closing driving device 39 moves to a preset position, the first grabbing mechanism 37 and the second grabbing mechanism 38 are driven to close, so that two sides of the turnover box 5 are clamped, and the purpose of stably grabbing the turnover box 5 is achieved; specifically, the first opening/closing driving device 39 is a bidirectional opening/closing cylinder.

Preferably, the first grabbing mechanism 37 comprises a first receiving plate 371 received at the lower end of the upper edge of the turnover box 5, and a first lifting mechanism 372 driving the first receiving plate 371 to lift; the first lifting mechanism 372 comprises a first mounting block 3721, a second mounting block 3722, a first lead screw 3723, a first auxiliary rod and a first lifting motor 3724, one end of the first lead screw 3723 passes through the first receiving plate 371 and is rotatably connected to the second mounting block 3722, the other end of the first lead screw 3723 passes through the first mounting block 3721 and is connected with the output end of the first lifting motor 3724, one end of the first auxiliary rod passes through the first receiving plate 371 and is connected to the second mounting block 3722, and the other end of the first auxiliary rod is connected to the first mounting block 3721;

the second grabbing mechanism 38 comprises a second bearing plate 381 borne on the lower end of the upper edge of the turnover box 5, and a second lifting mechanism 382 for driving the second bearing plate 381 to lift; the second lifting mechanism 382 comprises a third mounting block, a fourth mounting block, a second screw rod, a second auxiliary rod and a second lifting motor, wherein one end of the second screw rod penetrates through the second receiving plate 381 and is rotatably connected onto the fourth mounting block, the other end of the second screw rod penetrates through the third mounting block and is connected with the output end of the second lifting motor, one end of the second auxiliary rod penetrates through the second receiving plate 381 and is connected onto the fourth mounting block, and the other end of the second auxiliary rod is connected onto the third mounting block.

The first lifting driving device 35 controls the grabbing device 34 to move greatly in the vertical direction, the first lifting mechanism 372 controls the first receiving plate 371 to move slightly in the vertical direction, the second lifting mechanism 382 controls the second receiving plate 381 to move slightly in the vertical direction, so that the first receiving plate 371 is controlled by the first lifting mechanism 372, and the second receiving plate 381 is controlled by the second lifting mechanism 382 to be accommodated and moved to a proper position to receive the lower end of the upper edge of the turnover box 5; the first lead screw 3723 is driven to rotate by the first lifting motor 3724, the first lead screw 3723 rotates to drive the first receiving plate 371 to move up and down, the second lifting motor drives the second lead screw to rotate, and the second lead screw drives the second receiving plate 381 to move up and down.

Preferably, a plurality of first accommodating grooves are formed in the upper surface of the first receiving plate 371, and a first clamping protrusion 373 that is clamped in the groove 51 on one side of the upper edge of the turnover box 5 and a first clamping driving mechanism that drives the first clamping protrusion 373 to extend and retract in the first accommodating grooves are arranged in each first accommodating groove; a plurality of second accommodating grooves are formed in the upper surface of the second bearing plate 381, and a second clamping protrusion 383 which is clamped in the groove 51 on the other side of the upper edge of the turnover box 5 and a second clamping driving mechanism which drives the second clamping protrusion 383 to stretch in the second accommodating grooves are arranged in each second accommodating groove. When the first receiving plate 371 and the second receiving plate 381 extend to the lower end of the upper edge of the turnover box 5, the first clamping driving mechanism drives the first clamping protrusion 373 arranged in the first accommodating groove to move upwards, the second clamping driving mechanism drives the second clamping protrusion 383 arranged in the second accommodating groove to move upwards, so that the first clamping protrusion 373 and the second clamping protrusion 383 are clamped in the groove 51 of the upper edge of the turnover box 5, the turnover box 5 can be grabbed more stably, the problem of shaking and falling off can not occur, meanwhile, after the turnover boxes 5 are stacked, the first clamping protrusion 373 and the second clamping protrusion 383 move downwards to the corresponding accommodating grooves, the first receiving plate 371 and the second receiving plate 381 do not have obstruction in the outward moving process, the first receiving plate 371 and the second receiving plate 381 do not need to move downwards to enable the first clamping protrusion 373 and the second clamping protrusion 383 to extend out of the groove 51 of the upper edge of the turnover box 5, the first bearing plate 371 and the second bearing plate 381 are prevented from colliding with the lower turnover box 5 in the downward moving process, and the stacking process is stable and smooth; the first clamping driving mechanism and the second clamping driving mechanism are driven by cylinders.

Preferably, the molding die 1 comprises a movable die 11, a fixed die 12, a second lifting driving device 13 for driving the movable die 11 to close the fixed die 12, and a second moving driving device 14 for driving the movable die 11 to move between the fixed die 12 and the material conveying belt 31; the upper surface of the fixed die 12 forms a molding groove for accommodating the movable die 11, and the movable die 11 and the fixed die 12 are matched to form a molding cavity for molding the turnover box 5.

The movable mold 11 includes a first side wall 111, a second side wall 112, a third side wall and a fourth side wall which are adjacently arranged in sequence, and a bottom wall connected between the first side wall 111, the second side wall 112, the third side wall and the fourth side wall; a plurality of accommodating grooves arranged in a matrix are formed on the outer side walls of the first side wall 111, the second side wall 112, the third side wall and the fourth side wall respectively, and a telescopic block 113 for changing the shape of the turnover box 5 and a first telescopic driving device for driving the telescopic block 113 to stretch and retract in the accommodating grooves are arranged in each accommodating groove.

When the movable mold 11 and the fixed mold 12 are closed, a molding cavity for molding the turnover box 5 is formed, the telescopic blocks 113 are arranged in a matrix manner in the first side wall 111, the second side wall 112, the third side wall and the fourth side wall accommodating groove, the plastic is driven by the first telescopic driving device to move towards the inner wall of the fixed die 12 and is attached to the corresponding inner wall of the fixed die 12, after the molten plastic is injected into the molding cavity, after the molten plastic is cooled and molded, the expansion block 113 attached between the outer wall of the movable mold 11 and the inner wall of the fixed mold 12, becomes a hole on the turnover box 5, and by controlling the number of the jointing of the telescopic blocks 113 and the inner wall of the fixed die 12, the number of the holes and the arrangement and the distribution of the holes on the side wall of the turnover box 5 after the turnover box 5 is formed can be controlled, when the turnover box 5 does not need to be provided with the holes, the telescopic blocks 113 are positioned in the containing grooves, when the telescopic block 113 is positioned in the accommodating groove, the telescopic block is flush with the outer side wall of the movable mold 11, so that the formed turnover box 5 is not provided with any hole; the turnover box 5 with holes in different arrangements and distributions can be formed by using one set of moving die 11 and the fixed die 12, the turnover box 5 without any opening is not required, a plurality of sets of dies are not required to be manufactured to adapt to different turnover boxes 5, the applicability is wide, the die opening cost is greatly saved, and the space for placing a plurality of sets of equipment is saved; meanwhile, after the telescopic block 113 moves into the accommodating groove, the telescopic block moves out of a hole formed in the side wall of the turnover box 5, so that the resistance of demolding of the turnover box 5 is small, and the demolding efficiency is improved; specifically, the outer peripheral surface of the telescopic block 113 is attached to the inner wall of the accommodating groove, the thickness of the telescopic block 113 is equal to the depth of the accommodating groove, when the telescopic block 113 is completely located in the accommodating groove, the telescopic block is flush with the outer side wall of the side wall, and the first telescopic driving device is driven by an air cylinder; more specifically, an accommodating cavity for accommodating the bottom wall is formed among the first side wall 111, the second side wall 112, the third side wall and the fourth side wall, the bottom wall is arranged in the accommodating cavity, is attached to the inner side surface of each side wall and is in sliding connection with each inner side surface of the accommodating cavity, the turnover box further comprises a lifting cylinder for driving the bottom wall to lift in the accommodating cavity, when the turnover box is formed, the lifting cylinder drives the bottom wall to move to a position flush with the bottom end of each side wall, and after the turnover box is formed, the lifting cylinder drives the bottom wall to move downwards to abut against the turnover box 5, so that the turnover box 5 falls off, and the demolding efficiency is improved; specifically, the second lifting drive device 13 and the second movement drive device 14 are driven by air cylinders.

Preferably, the injection molding device 2 comprises an injection molding barrel 21, a screw rod arranged in the injection molding barrel 21 for outputting raw materials, an injection molding motor 22 for driving the screw rod to rotate, and a feed hopper 23 for feeding materials into the injection molding barrel 21. The discharge end of the injection molding barrel 21 is provided with an injection molding pipe 24 extending into a feed hole of the fixed mold 12, the discharge end of the injection molding pipe 24 is provided with an injection molding head 25, the surface of the injection molding head 25 is provided with a plurality of injection molding holes 251 axially arranged around the injection molding pipe 24, the axial direction of the injection molding holes 251 is parallel to the discharge direction, the injection molding head 25 is of an internal hollow structure, and a sealing mechanism 26 for sealing the injection molding holes 251 is arranged in the injection molding head 25. When the redundant excess materials of the feeding hole are broken in the feeding hole in the mold stripping process, the subsequent cleaning is needed, which is troublesome, the excess materials in the feeding hole are connected with the turnover box 5 after being cooled and formed, and the mold stripping resistance caused by the mold stripping direction being vertical to the feeding direction of the feeding hole is reduced, so that the mold stripping fluency is reduced; the injection molding head 25 is arranged at the discharge end of the injection molding pipe 24, the molten plastic output by the injection molding pipe 24 is output into the molding cavity through the plurality of injection molding holes 251 of the injection molding head 25, after the molding cavity is filled with the molten plastic, each injection molding hole 251 is sealed through the sealing mechanism 26 arranged in the injection molding head 25, the communication state of the molding cavity and the injection molding pipe 24 is isolated, at the moment, the cooling molding effect of the transfer case 5 in the molding cavity is favorably improved, the injection molding pipe 24 extends into the feeding hole of the fixed mold 12, one end of the injection molding head 25 close to the molding cavity is arranged in parallel and level with the inner side wall of the fixed mold 12, the redundant residual material in the feeding hole of the fixed mold 12 is saved, the mold discharging resistance caused by the vertical direction of the mold discharging direction and the direction of the feeding hole when the transfer case 5 is discharged from the mold is reduced, the mold discharging smoothness is improved, meanwhile, the redundant residual material does not need to be cut after being discharged from the mold, the preparation process is reduced, the labor cost is reduced, and the processing efficiency is improved.

Preferably, the closing mechanism 26 includes a mounting shaft 261, a plurality of closing members 262 in one-to-one correspondence with the respective injection holes 251, and a first rotating motor that drives the mounting shaft 261 to rotate; the closing element 262 is connected to the mounting shaft 261 through a connecting rod 263, a notch is formed on the inner wall of the injection molding hole 251, an elastic sealing element 27 is arranged on the notch, and an elastic movable opening 271 for the closing element 262 to pass through is formed on the elastic sealing element 27; starting the first rotating motor, wherein the first rotating motor drives the mounting shaft 261 to rotate anticlockwise, the mounting shaft 261 drives each sealing element 262 to rotate anticlockwise, and the elastic movable opening 271 is expanded towards two sides and the injection molding hole 251 is sealed in the process that the sealing element 262 passes through the elastic movable opening 271; the first rotating motor rotates clockwise, the mounting shaft 261 drives each sealing member 262 to rotate clockwise, and after the sealing member 262 returns to the inner cavity of the injection head 25, the two sides of the elastic movable opening 271 recover to the closed state. When the molding cavity is filled with molten plastic, a first rotating motor is started, the first rotating motor drives the mounting shaft 261 to rotate anticlockwise, the mounting shaft 261 drives each sealing element 262 to rotate anticlockwise, and the elastic movable opening 271 is expanded towards two sides and the injection molding hole 251 is sealed when the sealing elements 262 penetrate through the elastic movable opening 271; the first rotating motor rotates clockwise, the mounting shaft 261 drives each sealing member 262 to rotate clockwise, and after the sealing member 262 returns to the inner cavity of the injection head 25, the two sides of the elastic movable opening 271 recover to the closed state. An elastic movable opening 271 for the closing member 262 to pass through is formed on the elastic sealing member 27, so that the elastic sealing member 27 has a sealing effect when the closing member 262 is in the closing state and the non-closing state.

Preferably, a backflow prevention mechanism 28 for preventing the raw materials from flowing backwards is further arranged in the injection molding pipe 24; the backflow prevention mechanism 28 includes a first connection block 281, a second connection block 282, a closure block 283, and an elastic connection 284 connected between the second connection block 282 and the closure block 283; the first connecting block 281 is attached to the inner wall of the injection pipe 24, a first through hole 2811 for raw material to pass through is formed in the first connecting block 281, the second connecting block 282 is connected to one end of the injection head 25 away from the molding cavity, the closing block 283 is arranged at one end of the first connecting block 281 opposite to the injection head 25, and the diameter of the closing block 283 is larger than that of the first through hole 2811. The backflow prevention mechanism 28 is arranged, so that the molten plastic in the injection molding pipe 24 is stable, and the injection molding effect is improved; specifically, the elastic connection 284 includes a first slide bar, a second slide bar, and a spring; the second slide bar is sleeved on the first slide bar and is connected with the first slide bar in a sliding manner, the spring is arranged in the first slide bar and the second slide bar, one end of the spring abuts against the second connecting block 282, the other end of the spring abuts against the sealing block 283, and after the screw stops outputting raw materials, the spring restores elasticity to push the sealing block 283 to seal the first through-flow hole 2811.

Preferably, separating means 4 are also included to separate the stacked containers 5 one by one; after the turnover boxes 5 are stacked together, the adjacent turnover boxes 5 are clamped more tightly after being stacked together due to gravity, so that when the turnover boxes are needed to be used subsequently, the turnover boxes are difficult to split, workers need great force to separate the two adjacent turnover boxes 5, and are easy to rub with the edges of the turnover boxes 5 to be injured simultaneously, and through the separation device 4, the stacked turnover boxes 5 are automatically separated, so that the separation efficiency is improved, and the workload of the workers is reduced. The separating device 4 includes a biasing device 41 for biasing each of the adjacent containers 5, a third elevation driving device 42 for driving the biasing device 41 to ascend and descend, and a third movement driving device 43 for driving the biasing device 41 to move. The force application device 41 is driven by the third movement driving device 43 to move to the position of the stacked turnover box 5, the third lifting driving device 42 moves downwards to a preset position, the force application device 41 separates each adjacent turnover box 5, specifically, the third movement driving device 43 and the third lifting driving device 42 are driven by air cylinders, more specifically, in order to more stably separate the turnover box 5, the number of the force application devices 41 is two, force is respectively applied to two sides of the turnover box 5, and the separation stability is improved.

Preferably, the urging device 41 includes a first separating mechanism 44 for separating one side of each of the adjacent containers 5, a second separating mechanism 45 for separating the other side of each of the adjacent containers 5, and a second opening/closing driving device 46 for driving the first separating mechanism 44 and the second separating mechanism 45 to open and close. The first separating mechanism 44 and the second separating mechanism 45 are driven to open and close by the second opening and closing driving device 46, the first separating mechanism 44 applies force between two adjacent turnover boxes 5, the second separating mechanism 45 applies force between two adjacent turnover boxes 5, and the acting forces on the two sides are balanced, so that the turnover boxes 5 are easy to detach; specifically, the second opening/closing driving device 46 is a bidirectional opening/closing cylinder.

Preferably, the first separating mechanism 44 includes a first upper separating portion 441 contacting with the lower end of the upper edge of the upper container 5, a first lower separating portion 442 contacting with the upper end of the upper edge of the lower container 5, and a first separating driving device 443 for driving the first upper separating portion 441 to ascend and driving the first lower separating portion 442 to descend;

the first separation driving means 443 includes a first gear 4431, a second gear 4432, and a third gear 4433 which are engaged with each other, a first separation motor 4434 which drives the first gear 4431 to rotate, a third screw 4435 connected to the second gear 4432, a fourth screw 4436 connected to the third gear 4433, a first upper slide rail 4437 which guides the first upper separating portion 441, and a first lower slide rail which guides the first lower separating portion 442; one end of the first upper separating portion 441 has a first upper sliding groove, the first upper separating portion 441 is slidably connected with a first upper sliding rail 4437 through the first upper sliding groove, one end of the first lower separating portion 442 has a first lower sliding groove, the first lower separating portion 442 is slidably connected with the first lower sliding rail through the first lower sliding groove, the third screw 4435 passes through the first upper separating portion 441 and is rotatably connected with the first upper separating portion 441, the fourth screw 4436 passes through the first lower separating portion 442 and is rotatably connected with the first lower separating portion 442, and the external thread of the third screw 4435 and the external thread of the fourth screw 4436 have the same rotating direction;

the second separating mechanism 45 includes a second upper separating part 451 which contacts the lower end of the upper edge of the upper container 5, a second lower separating part 452 which contacts the lower end of the upper edge of the lower container 5, and a second separating driving device 453 which drives the second upper separating part 451 to ascend and drives the second lower separating part 452 to descend;

the second separation driving means 453 includes a fourth gear, a fifth gear, and a sixth gear which are engaged with each other, a second separation motor which drives the fourth gear to rotate, a fifth lead screw connected to the fifth gear, a sixth lead screw connected to the sixth gear, a second upper slide rail which guides the second upper separation part 451, and a second lower slide rail which guides the second lower separation part 452; one end of the second upper separating part 451 is provided with a second upper chute, the second upper separating part 451 is connected with a second upper chute through the second upper chute, one end of the second lower separating part 452 is provided with a second lower chute, the second lower separating part 452 is connected with a second lower chute through the second lower chute, the fifth screw rod passes through the second upper separating part 451 and is rotationally connected with the second upper separating part 451, the sixth screw rod passes through the second lower separating part 452 and is rotationally connected with the second lower separating part 452, and the external thread of the fifth screw rod and the external thread of the sixth screw rod are same in the rotating direction.

The first upper separating part 441 and the first lower separating part 442 are flush and extend into one side of the adjacent turnover box 5, the second upper separating part 451 and the second lower separating part 452 are flush and extend into the other side of the adjacent turnover box 5, the first separating motor 4434 of the first separating driving device 443 drives the first gear 4431 to rotate, the first gear 4431 drives the second gear 4432 to rotate, the second gear 4432 drives the third gear 4433 to rotate, the second gear 4432 drives the third screw 4435 to rotate, the third gear 4433 drives the fourth screw 4436 to rotate, as the rotation directions of the second gear 4432 and the third gear 4433 are opposite and the rotation directions of the external threads of the third screw 4435 and the fourth screw 4436 are the same, the first upper separating part 441 moves upwards to abut against the lower end of the upper edge of the upper turnover box 5, the first lower separating part 442 moves downwards to abut against the upper end of the upper edge of the lower turnover box 5, and the second separating motor of the second separating driving device 453 drives the fourth gear to rotate, the fourth gear drives the fifth gear to rotate, the fifth gear drives the sixth gear to rotate, the fifth gear drives the fifth screw rod to rotate, the sixth gear drives the sixth screw rod to rotate, the fifth gear and the sixth gear are opposite in rotation direction, the rotation directions of the external threads of the fifth screw rod and the sixth screw rod are the same, the second upper separating part 451 moves upwards to abut against the lower end of the upper edge of the upper turnover box 5, the second lower separating part 452 moves downwards to abut against the upper end of the lower edge of the lower turnover box 5, at the moment, the first upper separating part 441, the first lower separating part 442, the second upper separating part 451 and the second lower separating part 452 respectively abut against the preset positions of the adjacent turnover boxes 5, the first upper separating part 441 and the second separating part apply force upwards to the upper turnover box 5 to gradually separate the upper turnover box 5 from the lower turnover box 5, the first lower separating part 442 and the second lower separating part 452 apply force downwards to the lower turnover box 5 to fix the lower box 5 without being taken up, the first upper separating part 441 and the second upper separating part 451 apply force at the same time, so that the force applied to the two sides of the upper turnover box 5 is balanced, and the turnover box 5 can be detached conveniently; the first upper separating unit 441 and the first lower separating unit 442 are operated in synchronization and the second upper separating unit 451 and the second lower separating unit 452 are operated in synchronization by the first separating driving device 443 and the second separating driving device 453, thereby improving the synergistic effect between the components; specifically, the upper turnover box 5 and the lower turnover box 5 respectively refer to positions of two adjacent turnover boxes 5 stacked together in the vertical direction; more specifically, in order to improve the splitting effect, one end of the first upper separating part 441, which is far away from the first upper sliding rail 4437, forms a first upper separating rod, the upper surface of the first upper separating rod forms a third accommodating groove, a third clamping protrusion, which is clamped in the groove 51 on one side of the upper edge of the upper turnover box 5, and a first clamping cylinder, which drives the third clamping protrusion to stretch in the third accommodating groove, are arranged in the third accommodating groove, one end of the second upper separating part 451, which is far away from the second upper sliding rail, forms a second upper separating rod, a fourth accommodating groove is formed in the upper surface of the second upper separating rod, a fourth clamping protrusion, which is clamped in the groove 51 on the other side of the upper turnover box 5, and a second clamping cylinder, which drives the fourth clamping protrusion to stretch in the fourth accommodating groove, are arranged in the fourth accommodating groove; protruding through third joint and fourth joint, the joint is more stable when making split turnover case 5 in the recess 51 of last turnover case 5 upper limb, the problem that can not appear rocking.

A preparation method of a high-performance modified plastic product comprises the following steps:

(1) the injection device 2 injects the molten plastic into the forming mold 1;

(2) cooling and molding the molten plastic in the molding die 1 to form a turnover box 5;

(3) opening the forming die 1, taking out the turnover boxes 5, and outputting and stacking the turnover boxes 5 one by one through the conveying and collecting device 3;

in the step (1), the forming die 1 comprises a movable die 11, a fixed die 12, a second lifting driving device 13 for driving the movable die 11 to close the fixed die 12, and a second moving driving device 14 for driving the movable die 11 to move between the fixed die 12 and a material conveying belt 31; a molding groove for accommodating the movable mold 11 is formed in the upper surface of the fixed mold 12, the second lifting driving device 13 drives the movable mold 11 to descend into the molding groove, and the movable mold 11 and the fixed mold 12 are matched to form a molding cavity for molding the turnover box 5;

in the step (3), the turnover boxes 5 are moved to the position above the material conveying belt 31 by the second moving driving device 14 and are demoulded, the turnover boxes 5 are conveyed to the grabbing stations of the stacking device 32 by the material conveying belt 31, the grabbing devices 34 are driven to descend by the first lifting driving device 35 to grab the turnover boxes 5 by the grabbing devices 34, after the turnover boxes are ascended, the grabbing devices 34 are driven by the first moving driving device 36 to move to the position above the turnover table 33, the turnover boxes 5 are descended and placed on the turnover table 33, and circulation operation is performed to stack the turnover boxes 5 one by one, so that the stacked turnover boxes 5 can be transported and stored conveniently.

The injection molding device 2 is used for injecting molten plastic into the molding die 1, the turnover boxes 5 are output one by one and stacked through the conveying and collecting device 3 after cooling molding, the turnover boxes 5 are moved above the material conveying belt 31 through the second moving driving device 14 and are demolded, the material conveying belt 31 conveys the turnover boxes 5 to the grabbing stations of the stacking device 32, the first lifting driving device 35 drives the grabbing device 34 to descend to enable the grabbing device 34 to grab the turnover boxes 5, after ascending, the first moving driving device 36 drives the grabbing device 34 to move to the position above the turnover table 33, the turnover boxes 5 are descended and placed on the turnover table 33, circulation operation is carried out, the turnover boxes 5 are stacked one by one, and the stacked turnover boxes 5 can be conveniently transported and stored subsequently.

The product form of the present invention is not limited to the embodiments and examples shown in the present application, and any suitable changes or modifications of the similar ideas should be made without departing from the patent scope of the present invention.