阅读说明：本技术 一种单储料缸式四层塑料中空成型模头 (Single storage cylinder type four-layer plastic hollow molding die head ) 是由 赵顺岭 赵宇 于 2019-11-14 设计创作，主要内容包括：本发明公开了一种单储料缸式四层塑料中空成型模头,包括缸体,所述缸体的内部设置有外层料缸套,所述外层料缸套的内部设置有内层料缸套,所述缸体的内部设置有提芯杆,所述提芯杆的外侧套装有内芯棒,所述内芯棒的外侧套装有外芯棒,所述缸体与外层料缸套之间设置有第一层塑料流道,所述外层料缸套与内层料缸套之间设置有第二层塑料流道。本发明结构设计合理,各层塑料分别沿着各自的塑料流道向下流动,口模的内部汇合,方便四层塑料一次成型,各层塑料之间紧密贴合,结实不渗漏,还可以将进料口内因滞流产生的结块清理,有利于提高产品的加工质量,且能够保持口模内的温度,避免口模内部的塑料因温度降低而结块。(The invention discloses a single storage cylinder type four-layer plastic hollow molding die head which comprises a cylinder body, wherein an outer layer material cylinder sleeve is arranged inside the cylinder body, an inner layer material cylinder sleeve is arranged inside the outer layer material cylinder sleeve, a lifting rod is arranged inside the cylinder body, an inner core rod is sleeved outside the lifting rod, an outer core rod is sleeved outside the inner core rod, a first layer of plastic flow channel is arranged between the cylinder body and the outer layer material cylinder sleeve, and a second layer of plastic flow channel is arranged between the outer layer material cylinder sleeve and the inner layer material cylinder sleeve. The invention has reasonable structural design, each layer of plastic flows downwards along the respective plastic flow channel, the interior of the mouth mold is converged, the four layers of plastic are convenient to form at one time, the layers of plastic are tightly attached, are firm and do not leak, and the caking generated in the feed inlet due to stagnant flow can be cleaned, thereby being beneficial to improving the processing quality of products, maintaining the temperature in the mouth mold and avoiding the caking of the plastic in the mouth mold due to the temperature reduction.)

1. A single storage cylinder type four-layer plastic hollow forming die head comprises a cylinder body (1) and is characterized in that an outer layer cylinder sleeve (18) is arranged inside the cylinder body (1), an inner layer cylinder sleeve (21) is arranged inside the outer layer cylinder sleeve (18), a lifting rod is arranged inside the cylinder body (1), an inner core rod (4) is sleeved outside the lifting rod, an outer core rod (3) is sleeved outside the inner core rod (4), a first layer plastic runner (20) is arranged between the cylinder body (1) and the outer layer cylinder sleeve (18), a second layer plastic runner (19) is arranged between the outer layer cylinder sleeve (18) and the inner layer cylinder sleeve (21), a third layer plastic runner (2) is arranged between the inner layer cylinder sleeve (21) and the outer core rod (3), and a fourth layer plastic runner (17) is arranged between the outer core rod (3) and the inner core rod (4), the improved plastic pouring device is characterized in that a first layer of feeding hole corresponding to a first layer of plastic flow channel (20) is formed in the outer side of the cylinder body (1), a second layer of feeding hole corresponding to a second layer of plastic flow channel (19) is formed in the outer side of the cylinder body (1), a third layer of feeding hole corresponding to a third layer of plastic flow channel (2) is formed in the outer side of the cylinder body (1), a fourth layer of plastic flow channel (17) is formed in the outer side of the cylinder body (1), a neck mold (14) is arranged at the lower end of the cylinder body (1) and fixedly connected with the neck mold (14), a core mold (15) is fixedly connected to the lower end of the lifting rod, a heating mechanism used for heating the interior of the neck mold (14) is arranged in the outer side of the cylinder body (1), a rigid cover plate (27) is fixedly connected to the upper end.

2. The single-storage-cylinder four-layer plastic hollow molding die head as claimed in claim 1, wherein the heating mechanism comprises a water storage tank (5) fixedly connected to the outer side of the cylinder body (1), a water inlet (6) for water injection is arranged at the upper end of the water storage tank (5), a heating ring (7) is arranged inside the water storage tank (5), a water suction pump (8) is fixedly connected inside the water storage tank (5), a circulating pipeline (16) is arranged inside the die (14), the output end of the water suction pump (8) is connected with the water inlet end of the circulating pipeline (16) through a water inlet pipe (12), the water outlet end of the circulating pipeline (16) is connected with the water storage tank (5) through a return pipe (11), a water outlet (13) is arranged on the return pipe (11), and a power supply box (10) is fixedly connected to the outer side of the water storage, the power supply box (10) is electrically connected with the water suction pump (8) through a power line (9).

3. The single-storage-cylinder four-layer plastic hollow molding die head according to claim 2, characterized in that the circulating pipeline (16) is of a spiral structure, and the spiral length of the circulating pipeline (16) is gradually reduced from top to bottom.

4. The single-storage-cylinder four-layer plastic hollow molding die head according to claim 3, characterized in that a temperature sensor (33) penetrates through the outer side of the cylinder body (1) and is fixedly connected with the cylinder body, and a heat conducting layer (32) is arranged between the temperature sensor (33) and the circulating pipeline (16).

5. The single-storage-cylinder four-layer plastic hollow molding die head according to claim 4, wherein the temperature sensor (33), the water pump (8) and the heating ring (7) are all electrically connected with a control mechanism.

6. The single-storage-cylinder four-layer plastic hollow molding die head according to claim 1, wherein the cleaning mechanism comprises an electric push rod (25) fixedly connected to the upper end of a cover plate (27), the output end of the electric push rod (25) is fixedly connected with a sliding plate (26), the lower side of the sliding plate (26) extends to the lower side of the cover plate (27), the sliding plate (26) is slidably connected with the cover plate (27), the side wall of the sliding plate (26) is fixedly connected with a mounting frame (31), the side wall of the mounting frame (31) is fixedly connected with a driving motor (22), the end of the output shaft of the driving motor (22) is fixedly connected with a second rotating rod (30), the second rotating rod (30) penetrates through the sliding plate (26) and is fixedly connected with a cleaning brush (29), and a first rotating rod (24) penetrates through the sliding plate (26), and both rotate to be connected, the one end of first dwang (24) is fixedly connected with cleaning brush (29) also, the first drive wheel of other end fixedly connected with (23) of first dwang (24), the cover is equipped with second drive wheel (28) on second dwang (30), first drive wheel (23) is connected through the transmission of drive belt in second drive wheel (28).

7. The single-cylinder four-layer plastic hollow molding die head according to claim 6, characterized in that the mounting frame (31) is of an L-shaped structure.

8. The single-cylinder four-layer plastic hollow molding die head according to claim 7, characterized in that the cleaning brushes (29) are different in length.

Technical Field

The invention relates to the technical field of plastic molding equipment, in particular to a single storage cylinder type four-layer plastic hollow molding die head.

Background

Plastics are high molecular compounds obtained by polymerization of monomers by addition polymerization or polycondensation, which have a moderate deformation resistance between fibers and rubber, and are composed of synthetic resin, fillers, plasticizers, stabilizers, lubricants, colorants, and other additives.

In a conventional multi-layer blow molding machine, plastic is directly extruded into a molding die by several plastic extruders to form a multi-layer preform, which is then processed by blow molding equipment to produce a multi-layer plastic container. Therefore, the blanking speed is low, the integral molding of multi-layer plastics is not convenient, the leakage condition is easy to occur, and the production requirement of the product cannot be met; moreover, the intersection of each flow channel of the conventional plastic hollow molding die head is in right-angle transition, so that the phenomena that materials are easy to stagnate to a certain degree when flowing through a corner and even form a logistics dead angle are caused, the flow of each cavity cannot be ensured to be consistent, and finally the quality of plastic hollow molding is influenced or defective products are caused.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides the single-material-storage-cylinder type four-layer plastic hollow forming die head, wherein the plastics of all layers respectively flow downwards along respective plastic runners, the insides of the die head are converged, so that the four layers of plastics can be conveniently formed at one time, the plastics of all layers are tightly attached and are firm and leak-free, and the caking generated by stagnant flow in a feeding hole can be cleaned, so that the processing quality of a product is improved, the temperature in the die head can be kept, and the caking of the plastics in the die head due to the reduction of the temperature is avoided.

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

a single storage cylinder type four-layer plastic hollow forming die head comprises a cylinder body, wherein an outer layer cylinder sleeve is arranged inside the cylinder body, an inner layer cylinder sleeve is arranged inside the outer layer cylinder sleeve, a lifting rod is arranged inside the cylinder body, an inner core rod is sleeved outside the lifting rod, an outer core rod is sleeved outside the inner core rod, a first layer plastic flow channel is arranged between the cylinder body and the outer layer cylinder sleeve, a second layer plastic flow channel is arranged between the outer layer cylinder sleeve and the inner layer cylinder sleeve, a third layer plastic flow channel is arranged between the inner layer cylinder sleeve and the outer core rod, a fourth layer plastic flow channel is arranged between the outer core rod and the inner core rod, a first layer feed inlet corresponding to the first layer plastic flow channel is arranged outside the cylinder body, a second layer feed inlet corresponding to the second layer plastic flow channel is arranged outside the cylinder body, and a third layer feed inlet corresponding to the third layer plastic flow channel is arranged outside the cylinder body, the outer side of the cylinder body is provided with a fourth layer of plastic flow channel, the lower end of the cylinder body is provided with a mouth mold and fixedly connected with the mouth mold, the lower end of the lifting rod is fixedly connected with a core mold, the outer side of the cylinder body is provided with a heating mechanism for heating the interior of the mouth mold, the upper end of the cylinder body is fixedly connected with a rigid cover plate, and the cover plate is symmetrically provided with two cleaning mechanisms for preventing a feed inlet from being blocked.

Preferably, heating mechanism includes the storage water tank of fixed connection in the cylinder body outside, the upper end of storage water tank is provided with the water inlet that is used for the water injection, the inside of storage water tank is provided with the heating ring, the inside fixedly connected with suction pump of storage water tank, the inside of bush is provided with the circulating line, the output of suction pump is through advancing water piping connection circulating line inlet end, the outlet end of circulating line passes through the back flow and connects the storage water tank, be provided with the outlet on the back flow, the outside fixedly connected with power pack of storage water tank, the power pack passes through the power cord electricity and connects the suction pump.

Preferably, the circulating line is of a spiral structure, and the spiral length of the circulating line gradually decreases from top to bottom.

Preferably, the outside of cylinder body is run through and is provided with temperature sensor, and both fixed connection, be provided with the heat-conducting layer between temperature sensor and the circulating line.

Preferably, the temperature sensor, the water suction pump and the heating ring are all electrically connected with the control mechanism.

Preferably, the cleaning mechanism comprises an electric push rod fixedly connected to the upper end of the cover plate, the output end of the electric push rod is fixedly connected with a sliding plate, the lower side of the sliding plate extends to the lower side of the cover plate, the sliding plate and the cover plate are connected in a sliding way, the side wall of the sliding plate is fixedly connected with a mounting frame, the side wall of the mounting frame is fixedly connected with a driving motor, the tail end of the output shaft of the driving motor is fixedly connected with a second rotating rod, the second rotating rod penetrates through the sliding plate and is fixedly connected with the cleaning brush, the sliding plate is provided with a first rotating rod in a penetrating way, the two are rotatably connected, one end of the first rotating rod is also fixedly connected with a cleaning brush, the other end of the first rotating rod is fixedly connected with a first driving wheel, the second rotating rod is sleeved with a second driving wheel, and the second driving wheel is connected with a first driving wheel through a driving belt.

Preferably, the mounting bracket is of an L-shaped configuration.

Preferably, the plurality of cleaning brushes are of different lengths.

The invention has the following beneficial effects:

1. first layer plastics flow the inside of bush through first feed inlet and first layer plastics runner, the inside that the second layer plastics flow the bush through second feed inlet and second layer plastics runner, the inside that the third layer plastics flow the bush through third feed inlet and third layer plastics runner, the inside that the fourth layer plastics flow the bush through fourth feed inlet and fourth layer plastics runner, each layer plastics flows down along respective plastics runner respectively, the inside of bush is joined, make things convenient for four layers plastics one shot forming, closely laminate between each layer plastics, it is firm leak-proof.

2. The temperature sensor is used for sensing the temperature in the mouth mold, when the temperature is reduced, the heating ring is used for heating water in the water storage tank, the water in the water storage tank is pumped into the water inlet pipe through the water pump and flows into the circulating pipeline, so that the temperature in the mouth mold can be ensured, plastics cannot be condensed into blocks, and cooled water flows back to the inside of the water storage tank through the return pipe to achieve the circulating purpose, thereby being beneficial to circularly heating water to maintain the temperature in the mouth mold and avoiding the situation that the plastics are solidified and agglomerated in the mouth mold;

3. utilize electric putter's flexible end shrink to make the sliding plate begin to remove towards the cylinder body, inside inserting corresponding feed inlet with corresponding cleaning brush, start driving motor afterwards, driving motor's output shaft rotates and drives the second dwang and rotate, the second dwang drives the second drive wheel and rotates, because be connected through belt transmission between second pulley and the first drive wheel, thereby realize the synchronous rotation of first dwang, make a plurality of cleaning brushes rotate in step, can carry out cleaning process in step with a plurality of feed inlets, avoid the stagnant flow caking of plastics, prevent to influence the processing of plastics.

Drawings

FIG. 1 is a schematic structural diagram of a single-material-storage-cylinder four-layer plastic hollow molding die head provided by the invention;

FIG. 2 is a schematic structural diagram of a circulating pipeline of a single-material-storage-cylinder type four-layer plastic hollow molding die head provided by the invention;

FIG. 3 is a top sectional view of a water storage tank of a single storage cylinder type four-layer plastic hollow molding die head provided by the invention;

fig. 4 is a partial enlarged view of a part a in fig. 1 of a single-cylinder four-layer plastic hollow molding die head according to the invention.

In the figure: 1 cylinder body, 2 third layer plastic flow channel, 3 outer core rod, 4 inner core rod, 5 water storage tank, 6 water inlet, 7 heating ring, 8 water pump, 9 power cord, 10 power box, 11 return pipe, 12 water inlet pipe, 13 water outlet, 14 die, 15 die core, 16 circulating pipeline, 17 fourth layer plastic flow channel, 18 outer layer cylinder sleeve, 19 second layer plastic flow channel, 20 first layer plastic flow channel, 21 inner layer cylinder sleeve, 22 driving motor, 23 driving wheel, 24 first rotating rod, 25 electric push rod, 26 sliding plate, 27 cover plate, 28 second driving wheel, 29 cleaning brush, 30 second rotating rod, 31 mounting rack, 32 heat conducting layer, 33 temperature sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-4, a single storage cylinder type four-layer plastic hollow molding die head comprises a cylinder body 1, an outer layer cylinder sleeve 18 is arranged inside the cylinder body 1, an inner layer cylinder sleeve 21 is arranged inside the outer layer cylinder sleeve 18, a lifting rod is arranged inside the cylinder body 1, an inner core rod 4 is sleeved outside the lifting rod, an outer core rod 3 is sleeved outside the inner core rod 4, a first layer plastic flow passage 20 is arranged between the cylinder body 1 and the outer layer cylinder sleeve 18, a second layer plastic flow passage 19 is arranged between the outer layer cylinder sleeve 18 and the inner layer cylinder sleeve 21, a third layer plastic flow passage 2 is arranged between the inner layer cylinder sleeve 21 and the outer core rod 3, a fourth layer plastic flow passage 17 is arranged between the outer core rod 3 and the inner core rod 4, a first layer feed inlet corresponding to the first layer plastic flow passage 20 is arranged outside the cylinder body 1, a second layer feed inlet corresponding to the second layer plastic flow passage 19 is arranged outside the cylinder body 1, the outer side of the cylinder body 1 is provided with a third layer of feeding holes corresponding to the third layer of plastic flow channels 2, the outer side of the cylinder body 1 is provided with a fourth layer of plastic flow channels 17, the lower end of the cylinder body 1 is provided with a mouth mold 14 and fixedly connected with the mouth mold 14, the lower end of the core lifting rod is fixedly connected with a core mold 15, the outer side of the cylinder body 1 is provided with a heating mechanism for heating the inside of the mouth mold 14, the upper end of the cylinder body 1 is fixedly connected with a rigid cover plate 27, and the cover plate 27 is symmetrically provided with two cleaning.

Specifically, heating mechanism includes storage water tank 5 of fixed connection in the 1 outside of cylinder body, the upper end of storage water tank 5 is provided with the water inlet 6 that is used for the water injection, the inside of storage water tank 5 is provided with heating ring 7, the inside fixedly connected with suction pump 8 of storage water tank 5, the inside of bush 14 is provided with circulating line 16, the output of suction pump 8 passes through inlet tube 12 and connects circulating line 16 intake end, circulating line 16's play water end passes through back flow 11 and connects storage water tank 5, be provided with outlet 13 on the back flow 11, the outside fixedly connected with power pack 10 of storage water tank 5, power pack 10 passes through power cord 9 electricity and connects suction pump 8.

Specifically, the circulation pipe 16 is of a spiral structure, and the spiral length of the circulation pipe 16 gradually decreases from top to bottom, so that the temperature of the neck mold 14 can be maintained.

Specifically, a temperature sensor 33 is disposed through the outside of the cylinder 1, and the temperature sensor 33 and the circulation pipe 16 are fixedly connected to each other, and a heat conduction layer 32 is disposed between the temperature sensor 33 and the circulation pipe.

Further, the temperature sensor 33, the water pump 8 and the heating ring 7 are all electrically connected with a control mechanism, and the heating ring 7 and the water pump 8 can be automatically controlled to be started through the control mechanism according to the temperature inside the neck mold 14.

Specifically, the cleaning mechanism comprises an electric push rod 25 fixedly connected to the upper end of a cover plate 27, an output end of the electric push rod 25 is fixedly connected with a sliding plate 26, the lower side of the sliding plate 26 extends to the lower side of the cover plate 27, the sliding plate 26 is slidably connected with the cover plate 27, a mounting frame 31 is fixedly connected to the side wall of the sliding plate 26, a driving motor 22 is fixedly connected to the side wall of the mounting frame 31, a second rotating rod 30 is fixedly connected to the tail end of the output shaft of the driving motor 22, the second rotating rod 30 penetrates through the sliding plate 26 and is fixedly connected with a cleaning brush 29, a first rotating rod, the two rotating rods are rotatably connected, one end of the first rotating rod 24 is also fixedly connected with a cleaning brush 29, the other end of the first rotating rod 24 is fixedly connected with a first driving wheel 23, a second driving wheel 28 is sleeved on the second rotating rod 30, and the second driving wheel 28 is connected with the first driving wheel 23 through a driving belt in a driving mode.

Further, the mounting bracket 31 has an L-shaped structure. The lengths of the cleaning brushes 29 are different, and different lengths are set according to different feed inlets, so that corresponding cleaning treatment is facilitated.

When the plastic extrusion die works, a first layer of plastic flows into the interior of the mouth die 14 through the first feed port and the first layer of plastic flow passage 20, a second layer of plastic flows into the interior of the mouth die 14 through the second feed port and the second layer of plastic flow passage 19, a third layer of plastic flows into the interior of the mouth die 14 through the third feed port and the third layer of plastic flow passage 2, a fourth layer of plastic flows into the interior of the mouth die 14 through the fourth feed port and the fourth layer of plastic flow passage 17, the layers of plastic flow downwards along the respective plastic flow passages respectively, the interior of the mouth die 14 is converged, one-step molding of the four layers of plastic is facilitated, the layers of plastic are tightly attached to each other, and;

when the plastic is positioned in the neck mold 14, the temperature in the neck mold 14 is sensed through the temperature sensor 33, when the temperature is reduced, the heating ring 7 is utilized to heat water in the water storage tank 5, the water in the water storage tank 5 is pumped into the water inlet pipe 12 through the water pump 8 and flows into the circulating pipeline 16, so that the temperature in the neck mold 14 can be ensured, the plastic cannot be condensed into blocks, the cooled water flows back to the inside of the water storage tank 5 through the return pipe 11, the circulating purpose is achieved, and the circulating heating of the water is facilitated to maintain the temperature in the neck mold 14;

when the feeding hole is stagnant, the telescopic end of the electric push rod 26 is contracted to enable the sliding plate 26 to move towards the cylinder body 1, the corresponding cleaning brush 29 is inserted into the corresponding feeding hole, then the driving motor 22 is started, the output shaft of the driving motor 22 rotates to drive the second rotating rod 30 to rotate, the second rotating rod 30 drives the second driving wheel 28 to rotate, the second driving wheel 28 is connected with the first driving wheel 23 through belt transmission, synchronous rotation of the first rotating rod 24 is achieved, the cleaning brushes 29 synchronously rotate, cleaning treatment can be synchronously performed on the feeding holes, stagnation and agglomeration of plastics are avoided, and processing treatment of plastics is prevented from being influenced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.