阅读说明：本技术 一种勺子通用型自动注塑成型生产线 (Automatic injection moulding production line of general type of spoon ) 是由 黎冰盈 于 2021-11-18 设计创作，主要内容包括：本发明属于勺子的注塑成型技术领域,具体涉及一种勺子通用型自动注塑成型生产线,包括链绳输送线和注塑模具等结构。针对勺子更新换代快这一问题,将第一主模体和第二主模体设计为能够快速拆卸更换的结构；并且,由于第一主模体和第二主模体配合单次成型一个勺子,从而使得第一主模体和第二主模体的体积更小,加工模具的难度更低,本方案中还提供了一种能够生产勾勺的成型模具以及能够弹出成型后的勾勺的推出舌,使用该成型模具时可以简化生产线上的工艺结构,并替代其振动器,从而简化结构和工艺。(The invention belongs to the technical field of spoon injection molding, and particularly relates to a spoon universal type automatic injection molding production line which comprises a chain rope conveying line, an injection mold and the like. Aiming at the problem that the spoon is fast to update, the first main die body and the second main die body are designed into structures which can be fast disassembled and replaced; and, because first main die body and second main die body cooperation one shot forming ladle to make the volume of first main die body and second main die body littleer, the degree of difficulty of processing mould is lower, still provides one kind in this scheme and can produce the forming die who colludes the spoon and can pop out the release tongue that colludes the spoon after the shaping, can simplify the technological structure on the production line during use of this forming die, and replace its vibrator, thereby simplify structure and technology.)

1. The utility model provides an automatic injection moulding production line of general type of spoon which characterized in that: comprises a chain rope conveying line (1) and an injection mold (5); the chain rope conveying line (1) comprises a driving wheel (101), a driven wheel (102) and a conveying chain rope (103) connected between the driving wheel and the driven wheel; an injection molding station (2) and a discharging station (4) are arranged in sequence along the conveying direction of the conveying chain rope (103);

the injection mold (5) comprises a top transverse table (501), a tension spring (502), a rotating seat (503), a V-shaped arm rod (505), a first main mold body (507) and a second main mold body (508); the top transverse table (501) is connected to the conveying chain rope (103) in a hanging mode and moves along with the conveying chain rope; the rotating seat (503) is connected below the top transverse table (501) through an extension spring (502); the turning points of the two V-shaped arm rods (505) are respectively in rotary connection with the rotary seat (503), the rotary connection points of the two V-shaped arm rods are respectively provided with a linkage gear (504), and the two linkage gears (504) are mutually meshed; the lower ends of the V-shaped arm rods (505) are respectively connected with a mould seat (506); the first main mold body (507) and the second main mold body (508) are respectively detachably connected to the corresponding mold bases (506) and can be mutually buckled to form an injection molding cavity for forming the spoon; an injection molding hole is arranged below the injection molding cavity; only a single spoon is molded in the injection molding cavity;

an injection molding machine (205) is arranged at the injection molding station (2); an injection molding table (203) is arranged above the injection molding machine (205), a lifting table (202) is arranged above the injection molding table (203), and an injection molding nozzle (206) of the injection molding machine (205) is arranged at the center of the injection molding table (203) and extends out of the center of the lifting table (202); two opposite sides of the lifting platform (202) are respectively provided with a first expansion piece (201), and expansion rods of the two first expansion pieces (201) can oppositely extend and tightly abut against a mould seat (506) on the corresponding side, so that a first main mould body (507) and a second main mould body (508) are mutually buckled; the lifting platform (202) can be vertically lifted to pull the two mould seats (506) to move downwards and enable the injection molding hole to be in matched butt joint with the injection molding nozzle (206);

unloading frame (401) before unloading station (4) department sets up, preceding unloading frame (401) are the U font and back-off on conveying chain rope (103), the both ends punishment of unloading frame (401) in the front do not is provided with a second expansion bend (402), two second expansion bends (402) set up relatively, the flex point department of the directional V-arrangement armed lever (505) of telescopic link of second expansion bend (402) to can control first main die body (507) and second main die body (508) and open each other, so that the ladle after the shaping falls out.

2. The ladle general-purpose type automatic injection molding production line according to claim 1, characterized in that: preceding unloading frame (401) is last to be connected with elasticity curved part (405) of the font of falling U, and preceding unloading frame (401) is connected fixedly through elasticity curved part (405), and the upper portion of unloading frame (401) in the front is provided with vibrator (403), and vibrator (403) are used for driving preceding unloading frame (401) high-frequency vibration to shake off the ladle.

3. The ladle general-purpose type automatic injection molding production line according to claim 2, characterized in that: the second expansion piece (402) is connected with a C-shaped contact piece (404), and two ends of the C-shaped contact piece (404) respectively abut against the upper part and the lower part of the inflection point of the V-shaped arm lever (505); the C-shaped contact (404) has bending elasticity; the rear unloading frame (407) is further arranged at the unloading station (4), the rear unloading frame (407) is arranged on the rear side of the front unloading frame (401), the rear unloading frame (407) is U-shaped and is reversely buckled on the conveying chain rope (103), a third expansion piece (406) is respectively arranged at two ends of the rear unloading frame (407), the two third expansion pieces (406) are oppositely arranged, and an expansion rod of each third expansion piece (406) is abutted to the upper portion of the corresponding V-shaped arm rod (505) so that the first main mold body (507) and the second main mold body (508) are opened for the second time.

4. The ladle general-purpose type automatic injection molding production line according to claim 1, characterized in that: a cooling station (3) is arranged between the injection molding station (2) and the unloading station (4), a cold air nozzle is arranged at the cooling station (3), and the moving path of the injection mold (5) passes through the cold air nozzle; the mould brushing device is characterized in that a mould brushing station (10) is arranged on the conveying side of the unloading station (4), a transversely arranged mould brushing shaft (1001) is arranged at the mould brushing station (10), a plurality of bristles are distributed on the mould brushing shaft, and the bristles can be straightened under the action of centrifugal force and brush a first main mould body (507) and a second main mould body (508).

5. The ladle general-purpose type automatic injection molding production line according to claim 1, characterized in that: the injection molding station (2) and the unloading station (4) are arranged on one side of the conveying chain rope (103), and a washing station (6), a drying station (7) and a demolding agent station (8) are sequentially arranged on the other side of the conveying chain rope (103); the inner surfaces of the first main mould body (507) and the second main mould body (508) are subjected to jet washing at the washing station (6); the first main die body (507) and the second main die body (508) are dried by hot air at the drying station (7), and the temperature of the hot air is not higher than 75 ℃; the inner surfaces of the first main mould body (507) and the second main mould body (508) are sprayed with the release agent at the release agent station (8).

6. The ladle general-purpose type automatic injection molding production line of claim 5, characterized in that: an isosceles triangle-shaped water spraying table (601) is arranged at the water washing station (6), and a plurality of jet nozzles (602) are uniformly distributed on two waists of the water spraying table (601); the relative included angle of the first main mould body (507) and the second main mould body (508) is equivalent to the angle of the vertex angle of the isosceles triangle; and water washing lines are respectively arranged on two sides of the water spraying table (601), all the jet nozzles (602) positioned on the same waist face the same water washing line, and the inner side surface of the first main die body (507) or the second main die body (508) is washed by a plurality of concentrated jets when passing through the water washing line.

7. The ladle general-purpose type automatic injection molding production line of claim 5, characterized in that: a plurality of electric heaters which are gradually heated along the conveying direction are arranged below the drying station (7), an air blower is arranged below the electric heaters, and the drying station (7) has a certain length, so that the heating speed of the drying station (7) per meter along the length direction is 5-10 ℃.

8. The ladle general-purpose type automatic injection molding production line of claim 5, characterized in that: an isosceles triangle-shaped spraying table is arranged at the mold release agent station (8), and a plurality of atomizing nozzles are uniformly distributed on two waists of the spraying table; the relative included angle of the first main die body (507) and the second main die body (508) is equivalent to the vertex angle of the spraying table; an arc-shaped preheating station (9) is arranged at the driven wheel (102), arc-shaped electric heating plates are respectively arranged on the inner side and the outer side of the preheating station (9), a channel for the injection mold (5) to pass through is formed between the two electric heating plates, and the injection mold (5) is preheated to a specified temperature between the two electric heating plates.

9. The ladle general-purpose type automatic injection molding production line according to claim 1, characterized in that: a barb (1101) is arranged at the rear side of the spoon handle of the spoon, two hemispherical bulges (1102) are arranged at the bottom of the spoon, and the two hemispherical bulges (1102) are used for supporting the bottom surface of the spoon; a sliding groove is formed in the part, corresponding to the barb (1101), of the first main mold body (507), two sub mold bodies (511) are arranged in the sliding groove in a sliding mode, two stop blocks (510) are fixedly arranged in the sliding groove, and a traction spring (512) is arranged between each sub mold body (511) and the corresponding stop block (510); a push pillar (509) is arranged on the second main mold body (508), and an inclined surface part (514) corresponding to the push pillar (509) is arranged on the sub mold body (511); the push column (509) can push the sub-mold bodies (511) to move through the inclined surface part (514) and stretch the traction spring (512), so that the two sub-mold bodies (511) are mutually meshed and form a blind hole cavity for forming the barb (1101) and a groove for forming the corresponding part of the spoon handle.

10. The ladle general-purpose type automatic injection molding production line of claim 9, characterized in that: a push-out tongue (513) is arranged in the middle of the sliding groove, the push-out tongue (513) is connected to the first main die body (507) through a push-out spring, when the two sub die bodies (511) are closed, the sub die bodies (511) shield the push-out tongue (513), and when the two sub die bodies (511) are unfolded, the push-out tongue (513) ejects the formed spoon.

Technical Field

The invention belongs to the technical field of injection molding of spoons, and particularly relates to a general automatic injection molding production line for spoons.

Background

The injection molding is a molding method of injection and molding, which can stir a completely molten plastic material by a screw, inject the material into a cavity of a mold with high pressure, and obtain a molded product after cooling and solidification, similarly to an injection syringe for injection. The method has the advantages of high production speed, high efficiency, automation of operation, various designs and colors, various shapes from simple to complex, small sizes, accurate product size, easy replacement of products, capability of forming products with complex shapes, suitability for the fields of mass production, forming and processing of products with complex shapes and the like, suitability for batch production of parts with complex shapes and the like, and important processing method.

The spoon is one of common articles for daily use, needs a large amount of uses in daily life, but the ladle of unified shape lacks the competitiveness in market, and consequently the renewal of ladle is more common, and plastics ladle is in the injection moulding in-process, often mould and ladle shape one-to-one. In the existing production line, in order to solve the problem of cost, a plurality of spoons are often formed on the same mold, and the more spoons needing injection molding, the larger the forming mold is, and the difficulty in manufacturing the mold is also multiplied, for example, one mold for forming ten spoons is often higher in cost than ten molds for forming ten spoons; the main reason is that the small-size mould has lower technical requirements on technicians and is easier to produce; after the spoon is updated, the corresponding die is scrapped, so that great waste is caused; at present, a batch injection molding production line of various types of small molds which can be commonly used for spoons is lacked in the market, and the market blank becomes a problem to be solved.

In addition, collude the spoon and belong to one in the ladle, collude the portion of colluding that the spoon has and can collude bowl edge department to in avoiding colluding the spoon and falling into the bowl, and successive plastics collude the spoon and often only carry out small amplitude bending in spoon handle department, its leading cause is colluding when the portion is crooked and is greater than ninety degrees, colludes the spoon and is difficult to take out from the forming die, consequently, designs a section and can form the crookedness and be greater than ninety degrees colluding spoon forming die and also become the problem that remains to solve.

Disclosure of Invention

In order to solve the problem that the existing injection molding production line cannot meet the requirement of generalized batch production after the ladle mold is updated, the scheme provides an automatic injection molding production line for general ladle types.

The technical scheme adopted by the invention is as follows:

a spoon universal type automatic injection molding production line comprises a chain rope conveying line and an injection mold; the chain rope conveying line comprises a driving wheel, a driven wheel and a conveying chain rope connected between the driving wheel and the driven wheel; an injection molding station and a discharging station are arranged in sequence along the conveying direction of the conveying chain rope;

the injection mold comprises a top transverse table, an extension spring, a rotating seat, a V-shaped arm rod, a first main mold body and a second main mold body; the top transverse table is suspended and connected to the conveying chain rope and moves along with the conveying chain rope; the rotating seat is connected below the top transverse table through an extension spring; the inflection points of the two V-shaped arm rods are respectively in rotary connection with the rotary seat, the rotary connection parts of the two V-shaped arm rods are respectively provided with linkage gears, and the two linkage gears are meshed with each other; the lower ends of the V-shaped arm rods are respectively connected with a die seat; the first main mold body and the second main mold body are respectively detachably connected to corresponding mold bases and can be mutually buckled to form an injection molding cavity for forming the spoon; an injection molding hole is arranged below the injection molding cavity;

an injection molding machine is arranged at the injection molding station; an injection molding table is arranged above the injection molding machine, a lifting table is arranged above the injection molding table, and an injection molding nozzle of the injection molding machine is arranged at the center of the injection molding table and extends out of the center of the lifting table; two opposite sides of the lifting platform are respectively provided with a first expansion piece, and expansion rods of the two first expansion pieces can oppositely extend and tightly abut against the die seats on the corresponding sides, so that the first main die body and the second main die body are buckled with each other; the lifting platform can vertically lift to pull the two mold bases to move downwards and enable the injection molding holes to be in matched butt joint with the injection molding nozzles;

unloading frame before station department of unloading sets up, and preceding unloading frame is the U font and back-off on conveying chain rope, and the both ends punishment of unloading the frame in the front do not is provided with a second expansion bend, and two second expansion bends set up relatively, and the turning point department of the directional V-arrangement armed lever of telescopic link of second expansion bend to can control first die body and second die body and open each other, so that the ladle after the shaping falls out.

As an alternative or complementary design to the above solution: the front discharging frame is connected with an elastic bent part in an inverted U shape, the front discharging frame is fixedly connected through the elastic bent part, the upper part of the front discharging frame is provided with a vibrator, and the vibrator is used for driving the front discharging frame to vibrate in a high frequency mode so as to shake off the spoon.

As an alternative or complementary design to the above solution: the second expansion piece is connected with a C-shaped contact piece, and two ends of the C-shaped contact piece respectively abut against the upper part and the lower part of the inflection point of the V-shaped arm lever; the C-shaped contact piece has bending elasticity; the rear unloading frame is arranged at the unloading station and is arranged at the rear side of the front unloading frame, the rear unloading frame is U-shaped and is reversely buckled on the conveying chain rope, the two ends of the rear unloading frame are respectively provided with a third expansion piece, the two third expansion pieces are arranged oppositely, and the telescopic rods of the third expansion pieces are abutted against the upper parts of the corresponding V-shaped arm rods, so that the first main die body and the second main die body are opened for the second time.

As an alternative or complementary design to the above solution: a cooling station is arranged between the injection molding station and the unloading station, a cold air nozzle is arranged at the cooling station, and the moving path of the injection mold passes through the cold air nozzle; the mould brushing device is characterized in that a mould brushing station is arranged on the conveying side of the unloading station, a transversely arranged mould brushing shaft is arranged at the mould brushing station, a plurality of bristles are distributed on the mould brushing shaft, and the bristles can be straightened under the action of centrifugal force and brush the first main mould body and the second main mould body.

As an alternative or complementary design to the above solution: the injection molding station and the unloading station are arranged on one side of the conveying chain rope, and the washing station, the drying station and the demolding agent station are sequentially arranged on the other side of the conveying chain rope; the inner surfaces of the first main die body and the second main die body are subjected to jet washing at the washing station; the first main die body and the second main die body are dried by hot air at the drying station, and the temperature of the hot air is not higher than 75 ℃; and spraying a release agent on the inner surfaces of the first main mold body and the second main mold body at the release agent station.

As an alternative or complementary design to the above solution: a water spraying table in an isosceles triangle shape is arranged at the washing station, and a plurality of jet nozzles are uniformly distributed on two waists of the water spraying table; the relative included angle of the first main die body and the second main die body is equivalent to the angle of the vertex angle of the isosceles triangle; and the two sides of the water spraying table are respectively provided with a washing line, all the jet nozzles positioned on the same waist face the same washing line, and the inner side surface of the first main die body or the second main die body is washed by concentrated multiple jets when passing through the washing line.

As an alternative or complementary design to the above solution: a plurality of electric heaters which are gradually heated along the conveying direction are arranged below the drying station, an air blower is arranged below the electric heaters, and the drying station has a certain length, so that the heating speed of the drying station per meter along the length direction is 5-10 ℃.

As an alternative or complementary design to the above solution: an isosceles triangle-shaped spraying table is arranged at the mold release agent station, and a plurality of atomizing nozzles are uniformly distributed on two waists of the spraying table; the relative included angle of the first main die body and the second main die body is equivalent to the angle of the vertex angle of the spraying table; an arc preheating station is arranged at the driven wheel, arc electric heating plates are respectively arranged on the inner side and the outer side of the preheating station, a channel for an injection mold to pass through is formed between the two electric heating plates, and the injection mold is preheated to a specified temperature between the two electric heating plates.

As an alternative or complementary design to the above solution: a barb is arranged on the rear side of the spoon handle of the spoon, two hemispherical bulges are arranged at the bottom of the spoon, and the two hemispherical bulges are used for supporting the bottom surface of the spoon; a sliding groove is formed in the position, corresponding to the barb, of the first main die body, two sub die bodies are arranged in the sliding groove in a sliding mode, two stop blocks are fixedly arranged in the sliding groove, and a traction spring is arranged between each sub die body and the corresponding stop block; a push column is arranged on the second main die body, and an inclined plane part corresponding to the push column is arranged on the sub die body; the pushing column can push the sub die bodies to move and stretch the traction spring through the inclined surface part, and the two sub die bodies are mutually meshed and form a blind hole cavity for barb forming and a groove for forming the corresponding part of the spoon handle.

As an alternative or complementary design to the above solution: the middle part of the sliding groove is provided with a push-out tongue, the push-out tongue is connected to the first main die body through a push-out spring, when the two sub-dies are closed, the sub-dies shield the push-out tongue, and when the two sub-dies are unfolded, the push-out tongue pushes out the formed spoon.

The invention has the beneficial effects that:

1. the problem of batch production of the spoons is solved by adopting a chain rope conveying line circulating conveying mode in the scheme; meanwhile, the first main die body and the second main die body in the scheme can be quickly detached from and replaced on the corresponding die seats, so that the problem of quick replacement of the spoon can be solved; in addition, the first main mold body and the second main mold body are matched with one spoon for one-time molding, so that the volumes of the first main mold body and the second main mold body are smaller, and the difficulty in processing the mold is lower;

2. in the scheme, the first main mold body and the second main mold body are adopted to complete buckling or opening in a rotating mode, so that the buckling or opening action can be controlled by the expansion piece at the corresponding station, and the automation degree of production is improved; in addition, the first main die body and the second main die body can be controlled to move downwards at the injection station, so that the forming die can move downwards in a suspension state; the action of automatically controlling the alignment of the forming die is realized;

3. in the scheme, actions such as washing, drying and demolding agent spraying and stations such as injection molding and unloading are circularly arranged along the conveying direction of the chain rope conveying line, so that automatic production of the device can be effectively realized, and labor is saved;

4. still provide one kind in this scheme and can produce the forming die who colludes the spoon and can pop out the release tongue that colludes the spoon after the shaping, can simplify the technology structure on the production line when using this forming die to replace its vibrator, thereby simplify structure and technology.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 is a layout diagram of the stations along the chain conveying line in the scheme;

FIG. 2 is a schematic structural view of an injection mold;

FIG. 3 is a state view of the injection mold at the injection station;

FIG. 4 is a state view of the injection mold at the front discharge shelf of the discharge station;

FIG. 5 is a state diagram of the injection mold at a rear discharge shelf of the discharge station;

FIG. 6 is a state view of the injection mold at the brushing station;

FIG. 7 is a state view of the injection mold at the water wash station;

FIG. 8 is a view showing a structure of a first main mold for forming a hook spoon;

FIG. 9 is another state diagram of the first main mold body formed by the hook spoon;

fig. 10 is a block diagram of a scoop that an injection mold can form.

In the figure: 1-chain rope conveying line; 101-a driving wheel; 102-a driven wheel; 103-conveying chain; 2-an injection molding station; 201-a first retractor; 202-a lifting platform; 203-an injection molding station; 204-lifting expansion device; 205-an injection molding machine; 206-injection molding nozzle; 3-a cooling station; 4-unloading station; 401-front discharging frame; 402-a second retractor; 403-a vibrator; 404-C-shaped contacts; 405-a resilient bend; 406-a third retractor; 407-rear unloading frame; 5-injection molding; 501-top horizontal platform; 502-extension spring; 503-rotating seat; 504-linkage gear; 505-a V-arm; 506-a mold base; 507-a first master mold body; 508-a second master mold body; 509-push rod; 510-a stop block; 511-a daughter motif; 512-a traction spring; 513-push out tongue; 514-ramp portion; 6-water washing station; 601-water spraying table; 602-a jet nozzle; 7-drying station; 8-a release agent station; 9-preheating station; 10-brushing a mould station; 1001-brush mould shaft; 11-hook spoon; 1101-barbs; 1102 — hemispherical bumps.

Detailed Description

The technical solutions in the embodiments will be described clearly and completely with reference to the accompanying drawings, and the described embodiments are only a part of the embodiments, but not all embodiments, and all other embodiments obtained by those skilled in the art without creative efforts will belong to the protection scope of the present solution based on the embodiments in the present solution.

Example 1

As shown in fig. 1 to 7, the present embodiment designs an automatic injection molding production line for spoon universal type, which includes a chain rope conveying line 1 and an injection mold 5.

The chain rope conveying line 1 comprises a driving wheel 101, a driven wheel 102 and a conveying chain rope 103 connected between the driving wheel and the driven wheel; the conveying chain rope 103 can rotate circularly on the horizontal plane and drives the injection mold 5 to move, and an injection molding station 2, a cooling station 3, an unloading station 4, a mold brushing station 10, a washing station 6, a drying station 7, a mold release agent station 8 and a preheating station 9 are sequentially arranged in the conveying direction of the conveying chain rope 103. Wherein the injection molding station 2, the cooling station 3 and the unloading station 4 are positioned at one side of the conveying chain rope 103; the washing station 6, the drying station 7 and the release agent station 8 are positioned at the other side of the conveying chain rope 103; the brushing station 10 is arranged at the driving wheel 101, and the preheating station 9 is arranged at the driven wheel 102.

The injection mold 5 comprises a top cross platform 501, a tension spring 502, a rotating seat 503, a V-shaped arm 505, a first main mold body 507, a second main mold body 508 and the like. The top cross platform 501 is suspended and connected to the outer side of the conveying chain 103, and when the conveying chain 103 moves, the top cross platform 501 is driven to move synchronously. The rotary base 503 is connected to the lower side of the top horizontal platform 501 by a tension spring 502, and the rotary base 503 can vertically move downward relative to the top horizontal platform 501. The turning points of the two V-shaped arm levers 505 are respectively in rotary connection with the rotary base 503, the rotary connection points of the two are respectively provided with a linkage gear 504, and the two linkage gears 504 are meshed with each other; the lower ends of the V-shaped arm rods 505 are respectively connected with a die holder 506; the first main mold body 507 and the second main mold body 508 are respectively detachably connected to the corresponding mold bases 506 and can be mutually buckled to form an injection molding cavity for forming the spoon; be provided with the hole of moulding plastics in the below in the chamber of moulding plastics, should mould plastics hole and the chamber intercommunication of moulding plastics, can realize the operation of moulding plastics through this hole of moulding plastics, in addition, a ladle of moulding plastics chamber only shaping to make the volume of first main die body 507 and second main die body 508 littleer, reduce the technical degree of difficulty of both processing, make two main die bodies can be by apprentice just accomplish processing, also reduced the use cost of two main die bodies simultaneously. And two main mould bodies can be changed, when the ladle needs to be updated, only need to change the corresponding main mould body of dismouting and install on mould seat 506 can for this injection moulding production line's commonality improves greatly. In addition, the meshing relationship of the interlocking gears 504 enables the device to enable the V-shaped arms 505 of the chain to synchronously rotate relatively, and can increase the rotation resistance of the two V-shaped arms 505, the V-shaped arms 505 keep an included angle by the rotation resistance, and the two V-shaped arms 505 do not rotate under the condition of no external force.

An injection molding machine 205 is arranged at the injection molding station 2; an injection molding table 203 is arranged above the injection molding machine 205, a lifting table 202 is arranged above the injection molding table 203, and an injection molding nozzle 206 of the injection molding machine 205 is arranged at the center of the injection molding table 203 and extends out of the center of the lifting table 202; two opposite sides of the lifting platform 202 are respectively provided with a first expansion piece 201, and expansion rods of the two first expansion pieces 201 can oppositely extend and tightly abut against a mould seat 506 on the corresponding side, so that a first main mould body 507 and a second main mould body 508 are buckled with each other; the lifting platform 202 can be vertically lifted to pull the two mold bases 506 to move downwards and make the injection molding holes and the injection molding nozzles 206 in matched butt joint. When the injection mold 5 moves to the injection molding station 2, the telescopic rods of the two first retractors 201 extend relatively to push the first main mold body 507 and the second main mold body 508 to be buckled, and then the lifting retractor 204 is used for controlling the telescopic table to descend, so that the injection nozzle 206 is butted with an injection molding hole in a forming mold, and injection molding is realized conveniently; after the injection molding is completed, the lifting platform 202 and the first expansion piece 201 are reset successively. A plurality of injection molding machines 205 can be arranged side by side at the injection station 2, or a plurality of injection nozzles 206 can be arranged on the injection molding table 203, so that a plurality of molding tools can complete injection molding synchronously.

Set up cold wind nozzle at cooling station 3 department, during injection mold 5's removal route passed through the cold wind nozzle, thereby this cold wind nozzle can spout cold wind and cool off injection mold 5, avoids that the fashioned ladle does not solidify and takes place the deformation scheduling problem when the drawing of patterns in injection mold 5.

A front discharging frame 401 and a rear discharging frame 407 are arranged at the discharging station 4, the front discharging frame 401 and the rear discharging frame 407 are both U-shaped and are reversely buckled on the conveying chain rope 103, and the front discharging frame 401 is arranged on the front side of the rear discharging frame 407. Two ends of the front discharging frame 401 are respectively provided with a second expansion piece 402, the two second expansion pieces 402 are arranged oppositely, an expansion rod of each second expansion piece 402 points to the inflection point of the V-shaped arm 505, the second expansion pieces 402 are connected with C-shaped contact pieces 404, and two ends of each C-shaped contact piece 404 are respectively abutted to the upper part and the lower part of the inflection point of the V-shaped arm 505; the C-shaped contact 404 has bending elasticity; the C-shaped contact piece 404 can push the first main mold body 507 and the second main mold body 508 to be mutually opened, and at this time, the first main mold body 507 and the second main mold body 508 are in a half-opened state, so that the formed spoon falls out. The upper portion of preceding discharge frame 401 is provided with vibrator 403, be connected with the elasticity curved part 405 of the font of falling U on preceding discharge frame 401, preceding discharge frame 401 is connected fixedly through elasticity curved part 405, and this vibrator 403 can use elasticity curved part 405 as the fulcrum to drive preceding discharge frame 401 high-frequency vibration to shake off fashioned ladle. When the vibrator 403 vibrates, the lower ends of the two V-shaped arms 505 can move up and down, and the two main mold bodies are covered in a reciprocating manner under the elastic force of the C-shaped contact piece 404, so that vacuum suction can be formed by means of the cavity wall of the molding cavity, and the spoon can be guaranteed to fall off.

And two ends of the rear discharging frame 407 are respectively provided with a third expansion piece 406, the two third expansion pieces 406 are arranged oppositely, and the expansion rod of the third expansion piece 406 abuts against the upper part of the corresponding V-shaped arm 505, so that the first main mold body 507 and the second main mold body 508 are opened for the second time, and the opening included angle of the two V-shaped arm 505 is ensured to reach the designed maximum value. And enough space is reserved for actions of washing, drying, spraying a release agent and the like of subsequent stations.

A transversely arranged mold brushing shaft 1001 is arranged at the mold brushing station 10, and a plurality of bristles are distributed on the mold brushing shaft, and the bristles can be straightened under the action of centrifugal force and brush the first main mold body 507 and the second main mold body 508. Can scrub through this brush hair and hang the inside remaining plastics of forming die, can also sweep the ladle that does not drop in the forming die.

An isosceles triangle-shaped water spraying table 601 is arranged at the water washing station 6, and a plurality of jet nozzles 602 are uniformly distributed on two waists of the water spraying table 601; by utilizing the water flow ejected at high speed, the inner surface of the main die body can be washed, and the residual release agent can be washed, so that the cleanliness of the main die body after washing is ensured. The relative included angle of the first main mold body 507 and the second main mold body 508 is equivalent to the angle of the vertex angle of the isosceles triangle; the two sides of the water spraying table 601 are respectively provided with a washing line, all the jet nozzles 602 positioned on the same waist face the same washing line, and the inner side surface of the first main die body 507 or the second main die body 508 is washed by a plurality of concentrated jets when passing through the washing line. The washing line has more concentrated water flow, thereby improving the washing effect.

A plurality of electric heaters are arranged below the drying station 7, the temperature of the electric heaters is gradually increased along the conveying direction, an air blower is arranged below the electric heaters, the air blower blows upwards to dry the inner surfaces of the first main mold body 507 and the second main mold body 508 in a hot air mode, the drying station 7 has a certain length, the temperature increasing speed of the drying station 7 per meter along the length direction of the drying station is 5-10 ℃, and the temperature of the hot air at the highest temperature is not higher than 75 ℃. Through the mode of raising the temperature step by step, can effectively reduce first master mould body 507 and the influence that second master mould body 508 received the difference in temperature to under the condition of make full use of space, reach the effect of drying completely. The problem of dry and the crack position of crack remains water stain on surface is solved to the stoving temperature is too high and the stoving distance is not enough.

An isosceles triangle-shaped spraying table is arranged at the mold release agent station 8, and a plurality of atomizing nozzles are uniformly distributed on two waists of the spraying table; the relative included angle between the first main mold body 507 and the second main mold body 508 is equivalent to the vertex angle of the spray table. And spraying a release agent by using an atomizing nozzle, so that a protective layer is formed on the inner surfaces of the first main mold body 507 and the second main mold body 508, and the formed spoon and the mold can be conveniently released.

Preheating station 9 is arc-shaped and is arranged at driven wheel 102, arc-shaped electric heating plates are respectively arranged on the inner side and the outer side of preheating station 9, a channel for passing injection mold 5 is formed between the two electric heating plates, and injection mold 5 is preheated to a specified temperature between the two electric heating plates. Because small-size mould has the fast problem of heat change, at long distance's transportation process, if small-size mould's temperature reduction rate is too fast, will cause the phenomenon that plastics solidify in spoon handle department to influence the shape and the quality of shaping back ladle, in order to realize the heat preservation of whole production line, can set up this whole production line to the heat preservation shell of an encapsulation in simultaneously.

Example 2

As shown in fig. 7 to 10, since the existing injection mold 5 is not suitable for the injection molding production process of the spoon 11 with a curvature greater than ninety degrees, the present embodiment designs the spoon 11 with the barb 1101 and the injection molding mold structure of the spoon 11.

Set up a barb 1101 at the ladle handle rear side of colluding spoon 11, then be provided with two hemispherical bulges 1102 in the bottom of ladle, two hemispherical bulges 1102 are used for propping up the bottom surface of ladle to make colluding spoon 11 can be stable place on the plane under the support of hemispherical bulges 1102, thereby reduce the pollution of colluding spoon 11 internal surface. The spoon 11 can be manufactured by using the production line in the embodiment 1.

The forming die of the embodiment comprises a first main die body 507 and a second main die body 508, a sliding groove is arranged at the position of the first main die body 507 corresponding to the barb 1101, two sub die bodies 511 are arranged in the sliding groove in a sliding manner, two stop blocks 510 are fixedly arranged in the sliding groove, and a traction spring 512 is arranged between each sub die body 511 and the corresponding stop block 510; a push pillar 509 is provided on the second master mold body 508, and an inclined surface portion 514 corresponding to the push pillar 509 is provided on the sub mold body 511; the push post 509 can push the sub-mold bodies 511 to move and stretch the traction spring 512 by the inclined surface portion 514, and make the two sub-mold bodies 511 bite into each other and form a blind cavity for forming the barb 1101 and a groove for forming a corresponding portion of the spoon handle. When the first main mold body 507 and the second main mold body 508 are mutually buckled, the pushing column 509 is matched with the inclined surface part 514 and pushes the sub mold body 511, the two sub mold bodies 511 are mutually buckled, so that a groove for forming a corresponding part of a spoon handle is formed on the surface of the sub mold body 511, a blind hole cavity for forming the barb 1101 is formed in the inner part between the two sub mold bodies 511, and when the first main mold body 507 and the second main mold body 508 are mutually separated, the two sub mold bodies 511 are mutually separated under the action of the pulling force of the pulling spring 512, so that the barb 1101 cannot be hung on the first main mold body 507 or the second main mold body 508, and the formed spoon 11 can be smoothly demoulded.

A push-out tongue 513 is provided at a position in the middle of the slide groove, and the push-out tongue 513 is connected to the first main body 507 by a push-out spring. And can be extended and retracted along the direction vertical to the handle of the spoon 11, when the two sub-mold bodies 511 are closed, the two sub-mold bodies 511 can compress the pushing tongue 513 in a manner of pushing by an inclined plane, and shield the pushing tongue 513, and when the two sub-mold bodies 511 move transversely, the pushing tongue 513 can push out the formed spoon under the elastic force of the pushing spring.

When the forming mold in the present embodiment is used in combination with the production line in embodiment 1 for production, when the forming mold moves to the unloading station 4 along with the conveying wire, the formed hook spoon 11 is ejected when the first main mold body 507 and the second main mold body 508 are opened, so that the structure using the vibrator 403 can be replaced.

The above examples are merely for clearly illustrating the examples and are not intended to limit the embodiments; and are neither required nor exhaustive of all embodiments. And obvious variations or modifications of this technology may be resorted to while remaining within the scope of the technology.