CN212603221U

CN212603221U - Injection molding device for production of fire-fighting pipe fittings

Info

Publication number: CN212603221U
Application number: CN202021027500.1U
Authority: CN
Inventors: 戴师; 李红; 顾军
Original assignee: Funing Innovation Casting Co ltd
Current assignee: Funing Innovation Casting Co ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2021-02-26
Anticipated expiration: 2030-06-08

Abstract

The utility model belongs to the technical field of pipe fitting injection molding, in particular to an injection molding device for fire-fighting pipe fitting production, which comprises an injection molding box body, wherein the space region inside the injection molding box body is an injection molding cavity, a supporting box is fixedly connected above the injection molding box body, the right end of a nozzle runner is fixedly connected with the left upper part of a mold cavity, the space region between the mold cavity and a shell is a cooling cavity, the right lower part of the cooling cavity is communicated with a water pump through a connecting water pipe, the middle part of the upper end of the water pump is communicated with a water tank through a connecting water pipe, the water tank is communicated with the right end of the connecting water pipe through a water pump fixedly connected above, the left end of the connecting water pipe is fixedly connected with the right upper part inside the cooling cavity, a cold-hot water exchanger is fixedly connected with the lower, the cooling temperature in the die cavity is the same, and the product quality of the fire-fighting pipeline after the plastic is cooled and hardened is improved.

Description

Injection molding device for production of fire-fighting pipe fittings

Technical Field

The utility model relates to a pipe fitting technical field that moulds plastics especially relates to a fire control pipe fitting production is with moulding plastics device

Background

The injection molding is a process flow of heating, plasticizing and melting plastic, then injecting the plastic into a cavity of a forming mold for forming, cooling and demolding after melt solidification, and the injection molding can be divided into an injection molding die pressing method and a die casting method, rubber injection molding is a production method for directly injecting rubber materials into a mold from a machine barrel for vulcanization, plastic injection molding is a method for plastic products, the molten plastic is injected into a plastic product mold by utilizing pressure, and various plastic parts are obtained by cooling and forming, and the forming and injection molding are carried out: the resulting shape is often the final product and no further processing is required prior to installation or use as the final product.

When the fire-fighting pipe fitting is subjected to injection molding, a cavity is often formed in a mold cavity, the reason for the cavity is that the movement speed of a screw in an injection molding machine is uneven, the movement speed of a sliding rod is fast and slow, the flow speed of a nozzle is determined, meanwhile, the fire-fighting pipe fitting needs to be cooled and hardened in the mold cavity, and if the cooling temperature is different in cooling and hardening, the product quality is defective.

In order to solve the problem, provide a fire control pipe fitting production in this application with device of moulding plastics.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem who exists among the background art, the utility model provides a fire control pipe fitting production is with device of moulding plastics has the speed of motion that makes the slide bar even, reduces the phenomenon that appears the cavity in the die cavity and makes when plastics cooling hardening for cooling temperature in the die cavity is the same, improves the characteristics of the product quality of fire control pipeline behind the plastics cooling hardening.

(II) technical scheme

In order to solve the problems, the utility model provides an injection molding device for producing fire-fighting pipe fittings, which comprises an injection molding box body, wherein the space area inside the injection molding box body is an injection molding cavity, a support box is fixedly connected above the injection molding box body, a feed pipe is fixedly connected in the middle of the right end of the support box body, the lower end of the feed pipe is communicated with the injection molding cavity, a chute plate is fixedly connected above the support box body, the chute plate is slidably connected with a slide block through a chute arranged in the middle of the slide block, a rack is fixedly connected above the slide block, the rack is engaged with a gear, the middle part of the gear is fixedly connected with the front end of an output rotating shaft, the rear end of the output rotating shaft is connected with a motor, the motor is fixedly connected on the rear side of the upper surface of the chute plate, the left end of the rack is fixedly connected with the upper, slide bar right-hand member fixedly connected with pushing ram left surface middle part, there are inside upper surface of box and lower surface of moulding plastics material pushing ram upper end and lower extreme sliding connection respectively, the box lower right corner fixedly connected with nozzle left end of moulding plastics, nozzle right-hand member fixedly connected with nozzle runner, nozzle runner middle part fixedly connected with check valve, nozzle runner right-hand member fixedly connected with die cavity upper left side, the spatial zone between die cavity and the shell is the cooling chamber, cooling chamber right side below is linked together through connecting water pipe and water pump, water pump upper end middle part is linked together through connecting water pipe and water tank, the water tank has the connecting water pipe right-hand member through top fixedly connected with water pump intercommunication, connecting water pipe left end fixed connection is in the inside upper right side in cooling chamber, the inside fixed surface of water tank is connected.

Preferably, heating resistance wires are fixedly connected inside the nozzle and the material pushing plate.

Preferably, the upper right side of the injection molding box body is provided with an exhaust hole, and the exhaust hole is positioned below the right end of the supporting box.

Preferably, lubricating oil is smeared at the joint of the sliding block and the sliding groove plate.

Preferably, the length of the rack is longer than that of the injection molding box body.

Preferably, the nozzle runner and the mold cavity are integrally communicated.

Preferably, the motor is a stepless speed regulating motor.

The above technical scheme of the utility model has following profitable technological effect:

1. this fire control pipe fitting production is with device of moulding plastics, rack through setting up, the gear, link and slide bar and scraping wings, the motor drives the gear revolve through the output axis of rotation, gear and rack toothing transmission, the rack passes through the slider and slides from side to side in the spout board, when the rack slides left, the left end of rack drives the link and moves left, the link drives the slide bar and slides left, and then make the scraping wings slide left, when the rack slides right, the left end of rack drives the link and moves right, the link drives the slide bar and slides right, and then make the scraping wings slide right and push away the material, just so can make the sliding speed of rack and the sliding speed of scraping wings the same, thereby reached and made the moving speed of slide bar even, reduced the effect of the phenomenon that the cavity appears in the die cavity.

2. This fire control pipe fitting production is with device of moulding plastics, through the cooling chamber that sets up, connect the water pipe, water pump and water tank and cold and hot water exchanger, after liquid plastics shaping in the die cavity, the water pump is gone into the cooling chamber to the cold water in the water tank through connecting the water pipe pump, the cooling chamber wraps up at the die cavity surface all around, can be so that the cold water in the cooling chamber carries out even heat absorption to the temperature in the die cavity, thereby it is the same to have reached the cooling temperature in the die cavity, improve the effect of the product quality of fire control pipeline behind the plastics cooling hardening.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the motor and the gear of the present invention;

fig. 3 is the utility model discloses a structural schematic diagram is looked to vertical full section right side of chute board and rack.

In the figure: 1. injection molding the box body; 2. an injection molding cavity; 3. an exhaust hole; 4. a feed tube; 5. a chute plate; 6. a rack; 7. a support box; 8. a motor; 9. an output rotating shaft; 10. a gear; 11. a connecting frame; 12. a slide bar; 13. a material pushing plate; 14. a nozzle; 15. a non-return valve; 16. a nozzle flow passage; 17. a mold cavity; 18. a housing; 19. a cooling chamber; 20. a water tank; 21. a cold and hot water exchanger; 22. a water pump; 23. connecting a water pipe; 24. a slide block.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in figures 1-3, the utility model provides an injection molding device for fire-fighting pipe production, which comprises an injection molding box body 1, the space area inside the injection molding box body 1 is an injection molding cavity 2, a supporting box 7 is fixedly connected above the injection molding box body 1, a feed pipe 4 is fixedly connected in the middle of the right end of the supporting box 7, the lower end of the feed pipe 4 is communicated with the injection molding cavity 2, a chute plate 5 is fixedly connected above the supporting box 7, the chute plate 5 is slidably connected with a slide block 24 through a chute arranged in the middle, a rack 6 is fixedly connected above the slide block 24, the rack 6 is engaged with a gear 10, the middle of the gear 10 is fixedly connected with the front end of an output rotating shaft 9, the rear end of the output rotating shaft 9 is connected with a motor 8, the motor 8 is fixedly connected on the rear side of the upper surface of the chute plate 5, the left end of the rack 6 is fixedly, the lower end of the connecting frame 11 is fixedly connected with the left end of a sliding rod 12, the sliding rod 12 is connected with the left side surface of an injection molding box body 1 in a sliding manner, the right end of the sliding rod 12 is fixedly connected with the middle part of the left side surface of a material pushing plate 13, the upper end and the lower end of the material pushing plate 13 are respectively connected with the upper surface and the lower surface inside the injection molding box body 1 in a sliding manner, the right lower corner of the injection molding box body 1 is fixedly connected with the left end of a nozzle 14, the right end of the nozzle 14 is fixedly connected with a nozzle runner 16, the middle part of the nozzle runner 16 is fixedly connected with a check valve 15, the right end of the nozzle runner 16 is fixedly connected with the left upper part of a mold cavity 17, a space area between the mold cavity 17 and a shell 18 is a cooling cavity 19, the right lower part of the cooling cavity 19, the left end of the connecting water pipe 23 is fixedly connected to the upper right inside the cooling cavity 19, and the lower surface inside the water tank 20 is fixedly connected with a cold and hot water exchanger 21.

In this embodiment, it should be noted that heating resistance wires are fixedly connected to the inside of the nozzle 14 and the inside of the material pushing plate 13, and the arranged heating resistance wires prevent the liquid plastic in the injection molding cavity 2 from being bonded to the material pushing plate 13 and blocking the nozzle 14 due to too low temperature, so as to ensure that a cavity is not formed in the mold cavity 17.

In this embodiment, it should be noted that the exhaust hole 3 is formed in the upper right of the injection molding box body 1, the exhaust hole 3 is located below the right end of the support box 7, and the exhaust hole 3 is arranged to exhaust the air expanded by heat from the liquid plastic out of the injection molding cavity 2 due to heating, so that the atmospheric pressure in the injection molding cavity 2 is balanced with the external atmospheric pressure, and the resistance of the material pushing plate 13 during material pushing is reduced.

In this embodiment, lubricating oil is coated at the joint between the slider 24 and the chute plate 5, and the provided lubricating oil can reduce the resistance when the slider 24 and the chute plate 5 slide.

In this embodiment, it should be noted that the length of the rack 6 is longer than that of the injection molding box 1, and the arrangement is such that the material pushing plate 13 can push the material in the injection molding cavity 2 into the nozzle 14 completely, and the rack 6 does not disengage from the chute plate 5.

In this embodiment, the nozzle 14, the nozzle runner 16 and the cavity 17 are integrally penetrated, and the liquid plastic can enter the cavity 17 through the nozzle 14.

In this embodiment, it should be noted that the motor 8 is a stepless speed regulating motor, and the stepless speed regulating motor can enable the material pushing plate 13 to slide and push material at a better speed.

The working principle is as follows: closing the check valve 15, injecting heated plastic into the injection molding cavity 2 through the charging pipe 4, then opening the check valve 15, driving the gear 10 to rotate through the output rotating shaft 9 by the motor 8, enabling the gear 10 and the rack 6 to be in meshing transmission, enabling the rack 6 to slide left and right in the chute plate 5 through the sliding block 24, when the rack 6 slides left, driving the connecting frame 11 to move left by the left end of the rack 6, driving the slide rod 12 to slide left by the connecting frame 11, further enabling the push plate 13 to slide left by the connecting frame 11, when the rack 6 slides right, driving the connecting frame 11 to move right by the left end of the rack 6, driving the slide rod 12 to slide right by the connecting frame 11, further enabling the push plate 13 to slide right to push materials, enabling the push plate 13 to be in contact with the right side surface inside the injection molding box body 1 all the materials in the injection molding cavity 17, and after the materials are molded in the molding cavity 17, pumping cold water in the water tank 20 into the upper right corner of the cooling cavity 19 through, the periphery of the cooling cavity 19 is wrapped on the outer surface of the die cavity 17, so that cold water in the cooling cavity 19 can uniformly absorb heat of the temperature in the die cavity 17, after the heat absorption is finished, the water in the cooling cavity 19 is pumped into the water tank through the connecting water pipe 23, and the water in the water tank 20 is cooled again under the action of the cold-hot water exchanger 21 for the next use.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The injection molding device for the production of the fire-fighting pipe fitting comprises an injection molding box body (1) and is characterized in that a space region inside the injection molding box body (1) is an injection molding cavity (2), a supporting box (7) is fixedly connected above the injection molding box body (1), a charging pipe (4) is fixedly connected in the middle of the right end of the supporting box (7), the lower end of the charging pipe (4) is communicated with the injection molding cavity (2), a chute plate (5) is fixedly connected above the supporting box (7), a sliding block (24) is slidably connected with the sliding block (5) through a sliding chute formed in the middle of the sliding block, a rack (6) is fixedly connected above the sliding block (24), a gear (10) is meshed with the rack (6), the middle of the gear (10) is fixedly connected with the front end of an output rotating shaft (9), and the rear end of the output rotating shaft (9) is connected, the injection molding machine is characterized in that the motor (8) is fixedly connected to the rear side of the upper surface of the chute plate (5), the left end of the rack (6) is fixedly connected with the upper end of a connecting frame (11), the lower end of the connecting frame (11) is fixedly connected with the left end of a sliding rod (12), the sliding rod (12) is slidably connected with the left side surface of an injection molding box body (1), the right end of the sliding rod (12) is fixedly connected with the middle part of the left side surface of a material pushing plate (13), the upper end and the lower end of the material pushing plate (13) are respectively slidably connected with the upper surface and the lower surface inside the injection molding box body (1), the right lower corner of the injection molding box body (1) is fixedly connected with the left end of a nozzle (14), the right end of the nozzle (14) is fixedly connected with a nozzle runner (16), the middle part of the nozzle runner (16) is fixedly connected with a check valve (15), the right end, cooling chamber (19) right side below is linked together through connecting water pipe (23) and water pump (22), water pump (22) upper end middle part is linked together through connecting water pipe (23) and water tank (20), water tank (20) have connecting water pipe (23) right-hand member through top fixedly connected with water pump (22) intercommunication, connecting water pipe (23) left end fixed connection is in the inside upper right side in cooling chamber (19), the inside lower fixed surface of water tank (20) is connected with hot and cold water exchanger (21).

2. The injection molding device for producing the fire fighting pipe fitting as claimed in claim 1, wherein heating resistance wires are fixedly connected inside the nozzle (14) and the material pushing plate (13).

3. The injection molding device for producing the fire fighting pipe fitting as claimed in claim 1, wherein the injection molding box body (1) is provided with an exhaust hole (3) at the upper right side, and the exhaust hole (3) is located below the right end of the support box (7).

4. An injection molding device for producing fire fighting pipe fittings according to claim 1, characterized in that the joint of the sliding block (24) and the chute plate (5) is coated with lubricating oil.

5. An injection molding apparatus for producing fire fighting pipe fittings according to claim 1, wherein the rack (6) has a length longer than that of the injection molding box body (1).

6. An injection molding apparatus for manufacturing fire fighting pipe fitting according to claim 1, wherein the nozzle (14), the nozzle runner (16) and the mold cavity (17) are integrally connected.

7. The injection molding device for producing the fire fighting pipe fitting as claimed in claim 1, wherein the motor (8) is a stepless speed regulating motor.