CN221233022U

CN221233022U - Polypropylene cup multi-runner forming die

Info

Publication number: CN221233022U
Application number: CN202323103464.9U
Authority: CN
Inventors: 刘欢
Original assignee: Hujin Suzhou Industrial Co ltd
Current assignee: Hujin Suzhou Industrial Co ltd
Priority date: 2023-11-17
Filing date: 2023-11-17
Publication date: 2024-06-28
Anticipated expiration: 2033-11-17

Abstract

The utility model discloses a polypropylene cup multi-runner forming die, which relates to the technical field of injection dies and comprises an upper die plate and a lower die plate, wherein the upper die plate is arranged at the upper end of the lower die plate, a plurality of cup grooves are formed in the lower surface of the upper die plate, a die body is arranged at the upper end of the lower die plate, a die cavity is formed by the cup grooves and the die body after the upper die plate and the lower die plate are assembled, a material injection port is formed in the upper end of the upper die plate, the polypropylene cup multi-runner forming die further comprises a runner mechanism, a cooling mechanism and a discharging mechanism, the runner mechanism is arranged in the upper die plate and used for injecting materials into the die cavity, the cooling mechanism is arranged below the runner mechanism and used for cooling a cup to be formed, and the discharging mechanism is arranged in the lower die plate and used for increasing the discharging speed. According to the utility model, the material flow entering the cavity is balanced through the multi-stage branch pipes, the heating plate is arranged, the injection molding material is prevented from being cooled in advance, and the cooling mechanism is arranged, so that the temperature around the cup groove can be rapidly reduced, and the cooling rate is accelerated.

Description

Polypropylene cup multi-runner forming die

Technical Field

The utility model relates to the technical field of injection molds, in particular to a polypropylene cup multi-runner molding mold.

Background

Polypropylene is a thermoplastic synthetic resin with excellent performance, in the production process of polypropylene cups, a polypropylene material in a molten state needs to be injected into a mold, and the polypropylene cups can be obtained after the material is cooled and molded, but in the molding process, uneven flow of the molten polypropylene material is easily caused due to temperature, so that molding quality is affected, and the polypropylene cannot be cooled quickly after injection is finished, so that the overall processing efficiency is reduced.

Based on this, provide a polypropylene cup multithread way forming die now, can eliminate the drawback that current device exists.

Disclosure of utility model

The utility model aims to provide a multi-runner molding die for a polypropylene cup body, which is used for solving the problems that the rapid cooling and the residual of molten materials cannot be realized in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The utility model provides a polypropylene cup multithread way forming die, includes cope match-plate pattern and lower bolster, the cope match-plate pattern sets up the upper end at the lower bolster, a plurality of cup grooves have been seted up to the lower surface of cope match-plate pattern, the upper end of lower bolster is provided with the die body, cup groove and die body form the die cavity after cope match-plate pattern and the lower bolster compound die, the upper end of cope match-plate pattern is provided with annotates the feed opening, still includes runner mechanism, cooling mechanism and unloading mechanism, runner mechanism sets up the inside at the cope match-plate pattern for pour into molten material into to the die cavity inside, cooling mechanism sets up in runner mechanism's below for the cooling is waited fashioned cup, unloading mechanism sets up the inside at the lower bolster for increase the unloading rate of cup.

Preferably, the runner mechanism comprises a heating plate, a shunt tube is arranged in the heating plate, one end of the shunt tube is fixedly connected with the material injection port, the other end of the shunt tube is connected with a plurality of first branch flow tubes and second branch flow tubes, material injection nozzles are arranged at the lower ends of the first branch flow tubes and the second branch flow tubes, and the first branch flow tubes and the second branch flow tubes are injected into the same cavity.

Preferably, the cooling mechanism comprises a plurality of cooling holes uniformly distributed on two sides of the cup groove, a cooling pipe is inserted in the cooling holes, a water tank is fixedly arranged on one side of the upper template, a water pump is arranged on two sides of the water tank, the output end of the water pump is connected with the cooling pipe, and the other end of the cooling pipe is connected with the water tank.

Preferably, the discharging mechanism comprises a cavity, a plurality of electric push rods are fixedly arranged on the bottom wall of the cavity, the output ends of the electric push rods are connected with cross rods, a plurality of connecting rods are arranged at the upper ends of the cross rods, and pushing plates are fixedly arranged at the upper ends of the connecting rods.

Preferably, handles are symmetrically arranged on two sides of the upper template.

Preferably, the top of cope match-plate pattern is provided with the aspiration pump, the output of aspiration pump is connected with the intake pipe, the other end and the shunt tubes of intake pipe are connected, the outside of intake pipe is provided with the solenoid valve.

Preferably, limit grooves are formed in two sides of the inner wall of the cavity, and the cross rod is in sliding connection with the limit grooves.

Preferably, the upper surface of the push plate is flush with the top of the die body.

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

1. the flow channel mechanism is arranged in the utility model, so that a part of molten material flows into the second branch pipe from the branch pipe to carry out the branch treatment on the molten material, the material flow entering each cavity can be balanced through the design of the multi-stage branch pipes, and the heating plate is arranged to avoid the injection molding material in the branch pipe from being cooled in advance;

2. The cooling mechanism is arranged in the cup groove, and the water tank, the water pump, the refrigerating equipment and the cooling pipe are matched with each other, so that the temperature around the cup groove can be rapidly reduced, and the cooling rate of the formed cup body is further increased;

3. According to the utility model, the blanking mechanism is arranged, the electric push rod drives the cross rod, the connecting rod and the push plate to move upwards, so that the cup body is ejected out, the blanking speed is accelerated, and the air extracting pump and the air inlet pipe are arranged, so that residual materials in the shunt pipe, the first branch flow pipe and the second branch flow pipe can be discharged, and the influence on the next material injection is avoided.

Drawings

Fig.1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic structural view of one side of the present utility model.

Fig. 3 is a schematic structural view of the lower die plate of the present utility model.

Fig. 4 is a schematic structural view of the upper die plate of the present utility model.

Fig. 5 is a cross-sectional view of a front view of the present utility model.

Reference numerals annotate: 101. an upper template; 102. a lower template; 103. a cup groove; 104. a die body; 105. a material injection port; 106. a handle; 200. a flow channel mechanism; 201. a heating plate; 202. a shunt; 203. a first branch flow pipe; 204. a second branch flow pipe; 205. a material injection nozzle; 206. an air extracting pump; 207. an air inlet pipe; 300. a cooling mechanism; 301. a cooling tube; 302. a water tank; 303. a water pump; 400. a blanking mechanism; 401. a chamber; 402. an electric push rod; 403. a cross bar; 404. a connecting rod; 405. and a limit groove.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent.

Example 1

In this embodiment, as shown in fig. 1-5, a multi-runner molding mold for polypropylene cups includes an upper mold plate 101 and a lower mold plate 102, the upper mold plate 101 is disposed at the upper end of the lower mold plate 102, the upper end of the lower mold plate 102 is provided with a mounting post, the lower surface of the upper mold plate 101 is provided with a mounting hole, the mounting post corresponds to the mounting hole, so as to fix the positions of the upper mold plate 101 and the lower mold plate 102, the lower surface of the upper mold plate 101 is provided with a plurality of cup grooves 103, the upper end of the lower mold plate 102 is provided with a mold body 104, the cup grooves 103 are matched with the size of the mold body 104, after the upper mold plate 101 and the lower mold plate 102 are clamped, the cup grooves 103 and the mold body 104 form a cavity, the upper end of the upper mold plate 101 is provided with a material injection port 105, the upper end of the material injection port 105 is provided with a sealing port, the runner mechanism 200, a cooling mechanism 300 and a blanking mechanism 400 are disposed inside the upper mold plate 101, so as to inject molten materials into the cavity, the cooling mechanism 300 is disposed below the runner mechanism 200, so as to cool the cups to be molded, the cups are disposed inside the lower mold plate 102, and the lower mold is used to enable the polypropylene cups to be injected into the cavity by the upper mold plate 102, and the normal state is started when the upper mold is moved to enable the upper mold plate 102 to be filled into the cavity by the cavity, and the upper mold device to be filled with the polypropylene material;

As shown in fig. 5, the runner mechanism 200 includes a heating plate 201, the heating plate 201 is used for preventing injection molding materials inside the shunt tubes 202 from being cooled in advance, thereby blocking a pipeline, affecting injection molding efficiency, ensuring that the temperature of the injection molding materials entering the cavity from the first shunt tubes 203 and the second shunt tubes 204 is consistent, arranging the shunt tubes 202 inside the heating plate 201, balancing the material flow entering the cavity of each shunt tubes 202, improving molding quality, one end of each shunt tube 202 is fixedly connected with the material injection port 105, the other end of each shunt tube 202 is connected with a plurality of first shunt tubes 203 and second shunt tubes 204, the lower ends of each of the first shunt tubes 203 and the second shunt tubes 204 are respectively provided with a material injection nozzle 205, the first shunt tubes 203 and the second shunt tubes 204 are injected into the same cavity, the cavity is in a cup shape, the first shunt tubes 203 are injected into one side of the bottom of the cup, the second shunt tubes 204 are injected into the other side of the bottom of the cup, and the production rate and product quality of the cup are improved;

As shown in fig. 2 and fig. 5, the cooling mechanism 300 includes a plurality of cooling holes uniformly distributed on two sides of the cup groove 103, cooling pipes 301 are inserted in the cooling holes, the cooling pipes 301 are arranged in a C shape, so that the cooling pipes 301 surround the outer side of the cup groove 103 and then flow into the water tank 302 to form water circulation, a water tank 302 is fixedly installed on one side of the upper template 101, a water inlet is formed at the upper end of the water tank 302, water consumption is convenient to add in time, refrigerating equipment is arranged in the water tank 302, so that liquid in the water tank 302 can always keep a lower temperature, cooling efficiency is accelerated, two sides of the water tank 302 are respectively provided with a water pump 303, the output ends of the water pumps 303 are connected with the cooling pipes 301, the other ends of the cooling pipes 301 are connected with the water tank 302, and the water pumps 303 are started to enable the liquid to enter the cooling pipes 301, so as to play a role of reducing the ambient temperature of the cup groove 103, and the material can be quickly cooled after the injection is completed, and the practical effect of the device is improved;

As shown in fig. 5, the blanking mechanism 400 includes a cavity 401, a plurality of electric pushrods 402 are fixedly installed on the bottom wall of the cavity 401, the output end of each electric pushrod 402 is connected with a cross rod 403, each electric pushrod 402 drives each cross rod 403 to move up and down, a plurality of connecting rods 404 are arranged at the upper ends of the cross rods 403, pushing plates are fixedly arranged at the upper ends of the connecting rods 404, and the cooling pipes 301 are close to the periphery of the cup grooves 103, so that the cooling rate of the outer surface of the cup body is higher than that of the inner surface, after cooling forming is finished, the cup body is adhered to the outer side of the die body 104, after blanking is needed, the electric pushrods 402 are started to drive the cross rods 403, the connecting rods 404 and the pushing plates to move upwards, so that the pushing plates push the formed cup body to push out, and the blanking and the collecting are facilitated.

Example 2

As shown in fig. 1, handles 106 are symmetrically arranged on two sides of the upper template 101, and the handles 106 are used for conveniently separating the upper template 101 from the lower template 102, so that the overall practicability of the polypropylene cup multi-runner forming die is improved;

As shown in fig. 5, an air pump 206 is arranged at the top of the upper template 101, a dust screen is arranged at the input end of the air pump 206, dust is prevented from entering the shunt tube 202, the product quality is prevented from being influenced, an air inlet pipe 207 is connected to the output end of the air pump 206, the other end of the air inlet pipe 207 is connected to the shunt tube 202, the air inlet pipe 207 is arranged above the first shunt tube 203, the normal operation of the device is ensured, an electromagnetic valve is arranged at the outer side of the air inlet pipe 207, the opening and closing state of the air inlet pipe 207 is controlled through the electromagnetic valve, so that the air inlet pipe 207 cannot convey gas into the shunt tube 202 in the material injection process, after the material injection operation is finished, the air pump 206 is started, the electromagnetic valve is opened, and the air enters the shunt tube 202, so that residual materials are discharged;

As shown in fig. 5, two sides of the inner wall of the cavity 401 are provided with limit grooves 405, the cross bar 403 is slidably connected with the limit grooves 405, and the electric push rod 402 is started, so that the cross bar 403 can move upwards along the direction of the slide groove 405, the limit grooves 405 play a role in limiting, and the influence of the push plate on the die body 104 is avoided;

As shown in fig. 3, the upper surface of the push plate is flush with the top of the die body 104, and the cross bar 403 is limited by the limiting groove 405, so that the lowest position of the push plate is flush with the top of the die body 104, thereby avoiding affecting the formation of the polypropylene cup.

Before the polypropylene cup multi-runner forming die starts to be used, the upper die plate 101 is moved to the upper end of the lower die plate 102 to form a die cavity, the heating plate 201 is started, polypropylene materials in a molten state are injected into the die cavity through the material injection opening 105, the materials reach the first branch flow pipe 203 and the second branch flow pipe 204 through the branch flow pipe 202, finally reach the inside of the die cavity, the water pump 303 and the refrigerating equipment are started, and liquid with lower temperature is cooled around the cup groove 103 through the cooling pipe 301, so that the forming process is accelerated.

The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a polypropylene cup multichannel forming die, includes cope match-plate pattern (101) and lower bolster (102), cope match-plate pattern (101) set up the upper end at lower bolster (102), a plurality of cup grooves (103) have been seted up to the lower surface of cope match-plate pattern (101), the upper end of lower bolster (102) is provided with die body (104), cup grooves (103) and die body (104) form the die cavity after cope match-plate pattern (101) and lower bolster (102) compound die, the upper end of cope match-plate pattern (101) is provided with annotates material mouth (105);

The mold is characterized by further comprising a runner mechanism (200), wherein the runner mechanism (200) is arranged in the upper mold plate (101) and is used for injecting molten materials into the cavity;

The cooling mechanism (300) is arranged below the runner mechanism (200) and is used for cooling the cup body to be formed;

And the blanking mechanism (400) is arranged in the lower die plate (102) and used for increasing the blanking rate of the cup body.

2. The polypropylene cup multi-runner molding die according to claim 1, wherein the runner mechanism (200) comprises a heating plate (201), a shunt tube (202) is arranged inside the heating plate (201), one end of the shunt tube (202) is fixedly connected with a material injection port (105), the other end of the shunt tube (202) is connected with a plurality of first branch flow tubes (203) and second branch flow tubes (204), material injection nozzles (205) are arranged at the lower ends of the first branch flow tubes (203) and the second branch flow tubes (204), and the first branch flow tubes (203) and the second branch flow tubes (204) are injected into the same cavity.

3. The polypropylene cup multi-runner molding die according to claim 1, wherein the cooling mechanism (300) comprises a plurality of cooling holes uniformly distributed on two sides of the cup groove (103), cooling pipes (301) are inserted into the cooling holes, a water tank (302) is fixedly arranged on one side of the upper die plate (101), a water pump (303) is arranged on two sides of the water tank (302), an output end of the water pump (303) is connected with the cooling pipes (301), and the other ends of the cooling pipes (301) are connected with the water tank (302).

4. The polypropylene cup multi-runner molding die according to claim 1, wherein the blanking mechanism (400) comprises a cavity (401), a plurality of electric push rods (402) are fixedly installed on the bottom wall of the cavity (401), the output ends of the electric push rods (402) are connected with cross rods (403), a plurality of connecting rods (404) are arranged at the upper ends of the cross rods (403), and pushing plates are fixedly arranged at the upper ends of the connecting rods (404).

5. The polypropylene cup multi-runner molding die according to claim 1, wherein handles (106) are symmetrically arranged on both sides of the upper die plate (101).

6. The polypropylene cup multi-runner molding die according to claim 1, wherein an air pump (206) is arranged at the top of the upper die plate (101), an air inlet pipe (207) is connected to the output end of the air pump (206), the other end of the air inlet pipe (207) is connected with the shunt pipe (202), and an electromagnetic valve is arranged on the outer side of the air inlet pipe (207).

7. The polypropylene cup multi-channel forming mold according to claim 4, wherein limiting grooves (405) are formed on two sides of the inner wall of the cavity (401), and the cross rod (403) is slidably connected with the limiting grooves (405).

8. The polypropylene cup multi-channel forming mold according to claim 4, wherein an upper surface of the push plate is flush with a top of the mold body (104).