CN221112746U

CN221112746U - Multi-runner structure of plastic injection molding machine

Info

Publication number: CN221112746U
Application number: CN202322738604.3U
Authority: CN
Inventors: 胡洪利; 卢伟民; 胡小民; 胡建国; 何伟明
Original assignee: Langfang Yunfei New Material Co ltd
Current assignee: Langfang Yunfei New Material Co ltd
Priority date: 2023-10-12
Filing date: 2023-10-12
Publication date: 2024-06-11
Anticipated expiration: 2033-10-12

Abstract

The utility model belongs to the technical field of plastic injection molding, and particularly relates to a multi-runner structure of a plastic injection molding machine. This plastic injection molding machine's multichannel structure heats the inside plastics raw materials of conveyer pipe through the electrical heating board and melts, then starts conveying motor and drives the rotation of rotation axis, and then drives and carry the auger rotation to carry out injection molding with the inside of plastics stoste propelling movement to injection platform, start the water pump and send the coolant liquid to spray the inside in cooling chamber through the raceway, thereby carry out quick cooling shaping to the inside mould of injection runner, the coolant liquid rethread back flow to the inside of cooler bin after the heat transfer, realize circulation cooling fashioned function.

Description

Multi-runner structure of plastic injection molding machine

Technical Field

The utility model relates to the technical field of plastic injection molding, in particular to a multi-runner structure of a plastic injection molding machine.

Background

The injection molding machine is a molding device for manufacturing thermoplastic plastics or thermosetting plastics into plastic products with various shapes by using a plastic molding die, and is generally inconvenient for dividing plastic raw materials when multi-runner filling is carried out, and uneven filling phenomenon is easy to occur, so that the quality of products is reduced.

As disclosed in chinese patent publication No. CN210453514U, a multi-runner mechanism of an injection molding machine is disclosed, when in use, a mold and a clamping groove are clamped, then the mold is fixed by a bolt, a plastic raw material is poured into the interior of a hopper, the plastic raw material enters the interior of the injection cylinder through a feed inlet at the upper end of the injection cylinder, a movable block is connected to the right side of the injection cylinder in a sliding manner, the inner side of the movable block is connected with a gear motor through a bolt, a threaded rod is fixedly connected to the output end of the gear motor, a heating device is started to perform heating treatment, then the gear motor is started to rotate, the threaded rod is used for stirring and pushing the plastic raw material, finally, a first electric telescopic rod is started, the first electric telescopic rod drives the gear motor and the threaded rod to extrude the plastic raw material, the plastic raw material is extruded through a discharge port at the left end of the injection cylinder, a fixed block is fixedly connected to the inner side of the fixed cylinder, a hole groove is formed in the inner side of the fixed block at equal intervals, a guide pipe is fixedly connected to the left end of the hole groove, the plastic raw material is split through the hole groove, and enters the interior of the mold through the guide pipe, the plastic raw material is enabled to be more uniformly filled in the mold, and then is enabled to be uniformly cooled by the electric telescopic rod to be connected to the second telescopic rod through the electric telescopic rod, and is enabled to start to slide on the movable rod after the second telescopic rod is connected to the movable rod, and the movable rod is enabled to start to slide on the movable rod to be fixed.

However, in the multi-runner mechanism of the injection molding machine in the above application, after the injection of the plastic stock solution, a corresponding cooling device is not provided, and natural cooling is needed, so that the processing efficiency is reduced, and therefore, certain limitations exist.

For this reason, it is highly desirable to provide a multi-runner structure for a plastic injection molding machine.

Disclosure of utility model

The utility model aims to provide a multi-runner structure of a plastic injection molding machine, which solves the problems that the multi-runner structure of the injection molding machine provided in the background art is not provided with a corresponding cooling device after injection of plastic stock solution, and the machining efficiency is reduced by natural cooling.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a plastic injection molding machine's multichannel structure, includes processing platform and supporting leg, four the supporting leg is fixed connection in the lower surface four corners of processing platform respectively, the upper surface left side rear end of processing platform is provided with the heat sink, the upper surface right side of processing platform is provided with injection device, the upper surface left side of processing platform is provided with shedder.

The cooling device comprises a water pumping unit and a cooling unit.

The water pumping unit comprises an injection table, a cooling box, a water pump and a water pumping pipe, wherein the injection table is arranged on the left side of the upper surface of the processing table, the cooling box is fixedly connected to the back of the injection table, the water pump is arranged at the center of the top of the cooling box, the top of the water pumping pipe is connected to a water pumping port of the water pump and extends into the bottom of the cooling box, and cooling liquid in the cooling box is pumped to the cooling unit through the water pump matched with the water pumping pipe, so that rapid cooling and molding are performed on a die in the injection table, and the processing efficiency is improved.

The cooling unit comprises a water pipe, a return pipe and a radiator, wherein the rear end of the water pipe is connected with a water outlet of a water pump, the front end of the water pipe extends into the injection table, the return pipe is fixedly connected between the injection table and the cooling box, the radiator is arranged on the back of the cooling box, and the radiator is used for radiating cooling liquid after cooling and heat exchange, so that the cooling liquid can keep a lower temperature to realize the recycling function.

The injection platform is characterized in that six injection runners are annularly arranged in the injection platform, a cooling cavity is formed in the injection platform, the cooling cavity is arranged on the outer side of the injection runners in a surrounding mode, cooling liquid pumped by a water pump is sprayed into the cooling cavity through a water pipe, so that a mold in the injection runners is subjected to rapid cooling molding, and cooling liquid after heat exchange flows back to the cooling box through a return pipe, so that the function of circulating cooling is realized.

A further improvement is that the injection device comprises a heating unit and a delivery unit.

The heating unit comprises a mounting seat, an electric heating plate and a conveying pipe, wherein the mounting seat is fixedly connected to the right side of the upper surface of the processing table, the electric heating plate is arranged in the mounting seat, the conveying pipe is arranged on the inner wall of the electric heating plate, and plastic raw materials inside the conveying pipe are heated and melted through the electric heating plate, so that subsequent injection molding is facilitated.

The outer surface of the conveying pipe is of a conical structure, the left side of the conveying pipe is provided with a conveying cavity, and the left end of the conveying pipe is communicated with the injection table, so that plastic stock solution in the conveying cavity is guided into the injection table for injection processing.

The further improvement lies in, the conveying unit includes conveying motor, rotation axis, carries the auger, conveying motor installs in the right side of mount pad, the right-hand member of rotation axis is connected in conveying motor's output, and its left end extends into the inside of conveyer pipe, carry auger fixed connection in the surface of rotation axis, start conveying motor and drive the rotation axis and rotate, and then drive and carry the auger rotation to carry out injection molding with the inside of plastics stoste propelling movement to the injection platform.

The plastic product injection cooling molding device is characterized in that the demolding device comprises a supporting plate, a telescopic cylinder, a mold base and a mold, wherein the supporting plate is fixedly connected to the left side of the upper surface of a processing table, the telescopic cylinder is arranged on the outer surface of the right side of the supporting plate, the mold base is fixedly connected to the right end of the telescopic cylinder, six groups of molds are fixedly connected to the outer surface of the right side of the mold base in a ring shape and correspond to six injection runners, after the plastic product is subjected to injection cooling molding, the telescopic cylinder is started, the mold base is pulled to move left, the mold is pulled to move left to move out of the injection runners, then the plastic product on the outer surface of the mold is taken out, and the demolding and taking out are more convenient and quick.

Compared with the prior art, the utility model has the beneficial effects that:

1. This multichannel structure of plastics injection molding machine melts the inside plastics raw materials of conveyer pipe through the electrical heating board heating, then starts the conveying motor and drives the rotation axis rotation, and then drives and carry the auger rotation to carry out injection molding with the inside of plastics stoste propelling movement to the injection platform.

2. This multiple runner structure of plastics injection molding machine starts the water pump and pumps coolant liquid and spray the inside in cooling chamber through the raceway to carry out quick cooling shaping to the inside mould of injection runner, the inside of coolant liquid rethread back flow to the cooler bin after the heat transfer realizes the fashioned function of circulation cooling.

3. This multichannel structure of plastics injection molding machine, after plastics finished product injection cooling shaping, start flexible cylinder, pulling die holder left side moves, and then the pulling mould left side moves out from injection runner inside, again with the plastics finished product of mould surface take out can, the drawing of patterns get the material more convenient and fast.

Drawings

FIG. 1 is a schematic elevational view of the present utility model;

FIG. 2 is a schematic rear view of the present utility model;

FIG. 3 is a schematic side view of a cooling device according to the present utility model;

FIG. 4 is a schematic cross-sectional view of an injection device of the present utility model;

Fig. 5 is a schematic view of the independent structure of the demolding device of the utility model.

In the figure: 1. a processing table; 2. support legs; 301. an injection station; 302. a cooling box; 303. a water pump; 304. a water pumping pipe; 305. a water pipe; 306. a return pipe; 307. a heat sink; 401. a mounting base; 402. an electric heating plate; 403. a delivery tube; 404. a conveying motor; 405. a rotation shaft; 406. conveying the auger; 501. a support plate; 502. a telescopic cylinder; 503. a die holder; 504. and (5) a mold.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution:

embodiment one:

The utility model provides a plastic injection molding machine's multichannel structure, includes processing platform 1 and supporting leg 2, and four supporting legs 2 are fixed connection in the lower surface four corners of processing platform 1 respectively, and the upper surface right side of processing platform 1 is provided with injection device, and the upper surface left side of processing platform 1 is provided with shedder.

The injection device comprises an injection station 301, a heating unit and a transport unit.

The heating unit includes mount pad 401, electrical heating board 402, conveyer pipe 403, and mount pad 401 fixed connection is on the upper surface right side of processing platform 1, and electrical heating board 402 installs in the inside of mount pad 401, and conveyer pipe 403 installs in the inner wall of electrical heating board 402, heats the plastics raw materials of conveyer pipe 403 inside through electrical heating board 402 and melts, is convenient for follow-up injection moulding.

The outer surface of the conveying pipe 403 is of a conical structure, the left side of the conveying pipe is provided with a conveying cavity, the left end of the conveying pipe is communicated with the injection platform 301, six injection flow passages are formed in the injection platform 301 in an annular mode, and therefore plastic stock solution in the conveying cavity is guided into the injection platform 301 for injection processing.

The conveying unit comprises a conveying motor 404, a rotating shaft 405 and a conveying auger 406, wherein the conveying motor 404 is arranged on the right side of the mounting seat 401, the right end of the rotating shaft 405 is connected to the output end of the conveying motor 404, the left end of the conveying motor extends into the conveying pipe 403, the conveying auger 406 is fixedly connected to the outer surface of the rotating shaft 405, the conveying motor 404 is started to drive the rotating shaft 405 to rotate, and then the conveying auger 406 is driven to rotate, so that plastic stock solution is pushed into the injection table 301 for injection molding.

The demoulding device comprises a supporting plate 501, a telescopic cylinder 502, a mould holder 503 and a mould 504, wherein the supporting plate 501 is fixedly connected to the left side of the upper surface of the processing table 1, the telescopic cylinder 502 is arranged on the outer surface of the right side of the supporting plate 501, the mould holder 503 is fixedly connected to the right end of the telescopic cylinder 502, six groups of moulds 504 are fixedly connected to the outer surface of the right side of the mould holder 503 in a ring shape and correspond to six injection runners, after injection cooling and forming of a plastic finished product, the telescopic cylinder 502 is started, the mould holder 503 is pulled to move left, the mould 504 is pulled to move left to move out from the inside of the injection runners, then the plastic finished product on the outer surface of the mould 504 is taken out, and demoulding and taking are more convenient and rapid.

When the plastic injection molding machine is used, the telescopic cylinder 502 is started firstly, the die holder 503 and the die 504 on the outer surface of the right side of the die holder are pushed to be inserted into six injection runners, then plastic raw materials are poured into the conveying pipe 403, then the electric heating plate 402 is started to heat and melt the plastic raw materials in the conveying pipe 403, then the conveying motor 404 is started to drive the rotating shaft 405 to rotate, and then the conveying auger 406 is driven to rotate, so that plastic raw liquid is pushed into the injection table 301 for injection molding, after a plastic finished product is cooled and molded, the telescopic cylinder 502 is started, the die holder 503 is pulled to move left, the die 504 is pulled to move left out of the injection runners, then the plastic finished product on the outer surface of the die 504 is taken out, and the demolding and the material taking are more convenient and rapid.

Embodiment two:

on the basis of the first embodiment, a cooling device is arranged at the rear end of the left side of the upper surface of the processing table 1, and comprises a water pumping unit and a cooling unit.

The water pumping unit comprises an injection table 301, a cooling box 302, a water pump 303 and a water pumping pipe 304, wherein the injection table 301 is arranged on the left side of the upper surface of the processing table 1, the cooling box 302 is fixedly connected to the back surface of the injection table 301, the water pump 303 is arranged at the center of the top of the cooling box 302, the top of the water pumping pipe 304 is connected to a water pumping port of the water pump 303 and extends into the bottom of the cooling box 302, and cooling liquid in the cooling box 302 is pumped to the cooling unit through the water pump 303 and the water pumping pipe 304, so that rapid cooling molding is performed on a die in the injection table 301, and the processing efficiency is improved.

The cooling unit comprises a water delivery pipe 305, a return pipe 306 and a radiator 307, wherein the rear end of the water delivery pipe 305 is connected with a water outlet of the water pump 303, the front end of the water delivery pipe extends into the injection platform 301, the return pipe 306 is fixedly connected between the injection platform 301 and the cooling box 302, the radiator 307 is arranged on the back surface of the cooling box 302, and cooling liquid after cooling and heat exchange is radiated through the radiator 307, so that the cooling liquid is kept at a lower temperature to realize the recycling function.

The cooling chamber has been seted up to the inside of injection platform 301, and this cooling chamber encircles the outside that sets up in the injection runner, and the inside in cooling chamber is sprayed through raceway 305 to the coolant liquid of water pump 303 suction to carry out the rapid cooling shaping to the inside mould of injection runner, the inside that the coolant liquid rethread back flow pipe 306 after the heat transfer was to cooling box 302 realizes the function of circulation cooling.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

Claims

1. The utility model provides a multichannel structure of plastics injection molding machine, includes processing platform (1) and supporting leg (2), four supporting leg (2) are fixed connection respectively in the lower surface four corners of processing platform (1), its characterized in that: the left rear end of the upper surface of the processing table (1) is provided with a cooling device, the right side of the upper surface of the processing table (1) is provided with an injection device, and the left side of the upper surface of the processing table (1) is provided with a demoulding device;

the cooling device comprises a water pumping unit and a cooling unit;

The water pumping unit comprises an injection table (301), a cooling box (302), a water pump (303) and a water pumping pipe (304), wherein the injection table (301) is arranged on the left side of the upper surface of the processing table (1), the cooling box (302) is fixedly connected to the back surface of the injection table (301), the water pump (303) is arranged at the center of the top of the cooling box (302), and the top of the water pumping pipe (304) is connected to a water pumping port of the water pump (303) and extends into the inner bottom of the cooling box (302).

2. The multi-runner structure of a plastic injection molding machine of claim 1, wherein: the cooling unit comprises a water delivery pipe (305), a return pipe (306) and a radiator (307), wherein the rear end of the water delivery pipe (305) is connected to a water outlet of a water pump (303), the front end of the water delivery pipe extends into the injection table (301), the return pipe (306) is fixedly connected between the injection table (301) and the cooling box (302), and the radiator (307) is arranged on the back of the cooling box (302).

3. The multi-runner structure of a plastic injection molding machine according to claim 2, wherein: six injection flow channels are annularly arranged in the injection table (301), a cooling cavity is arranged in the injection table (301), and the cooling cavity is arranged on the outer side of the injection flow channels in a surrounding mode.

4. A multi-runner structure for a plastic injection molding machine as claimed in claim 3, wherein: the injection device comprises a heating unit and a conveying unit;

The heating unit comprises a mounting seat (401), an electric heating plate (402) and a conveying pipe (403), wherein the mounting seat (401) is fixedly connected to the right side of the upper surface of the processing table (1), the electric heating plate (402) is mounted in the mounting seat (401), and the conveying pipe (403) is mounted on the inner wall of the electric heating plate (402).

5. The multi-runner structure of a plastic injection molding machine of claim 4, wherein: the outer surface of the conveying pipe (403) is of a conical structure, the left side of the conveying pipe is a conveying cavity, and the left end of the conveying pipe is communicated with the injection table (301).

6. The multi-runner structure of a plastic injection molding machine of claim 5, wherein: the conveying unit comprises a conveying motor (404), a rotating shaft (405) and a conveying auger (406), wherein the conveying motor (404) is arranged on the right side of the mounting seat (401), the right end of the rotating shaft (405) is connected with the output end of the conveying motor (404), the left end of the rotating shaft extends into the conveying pipe (403), and the conveying auger (406) is fixedly connected to the outer surface of the rotating shaft (405).

7. The multi-runner structure of a plastic injection molding machine of claim 6, wherein: the demolding device comprises a supporting plate (501), a telescopic cylinder (502), a mold base (503) and a mold (504), wherein the supporting plate (501) is fixedly connected to the left side of the upper surface of the processing table (1), the telescopic cylinder (502) is arranged on the outer surface of the right side of the supporting plate (501), the mold base (503) is fixedly connected to the right end of the telescopic cylinder (502), and six groups of the molds (504) are fixedly connected to the outer surface of the right side of the mold base (503) in a ring shape and correspond to six injection runners.