CN216068369U

CN216068369U - Novel injection molding machine

Info

Publication number: CN216068369U
Application number: CN202121375062.2U
Authority: CN
Inventors: 朱涛
Original assignee: Dancheng Wanshunda Plastic Packing Co
Current assignee: Dancheng Wanshunda Plastic Packing Co
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2022-03-18
Anticipated expiration: 2031-06-21

Abstract

The utility model provides a novel injection molding machine. The novel injection molding machine comprises an injection molding machine body, wherein the injection molding machine body comprises a feeding system and a forming system, the feeding system comprises a pipe body for conveying injection molding raw materials, and a feeding screw capable of automatically rotating is arranged in the pipe body; the upper circumferential surface of the pipe body is fixedly provided with a vacuum pumping pump, the input end of the vacuum pumping pump is sealed and tightly communicated with one end of the exhaust pipe, and the other end of the exhaust pipe is sealed and tightly communicated with a hole formed in the surface of the pipe body. According to the novel injection molding machine, residual gas in the pipe body is sucked by the aid of the vacuum pump, and the vacuum state in the pipe body is realized to the maximum extent, so that the injection molding machine can be completely defoamed in a vacuum manner in the discharging process, no bubble is left in the punched slurry, and the common problems of air holes and the like caused by unclean defoaming in plastic products are solved.

Description

Novel injection molding machine

Technical Field

The utility model relates to the technical field of injection molding machines, in particular to a novel injection molding machine.

Background

An injection molding machine is also known as an injection molding machine or an injection machine. It is a main forming equipment for making various shaped plastic products from thermoplastic plastics or thermosetting plastics by using plastic forming mould. The device is divided into a vertical type, a horizontal type and a full-electric type. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity.

The injection molding machine usually comprises injection system, compound die system, hydraulic transmission system, electric control system, lubricating system, heating and cooling system, safety monitoring system etc. but does not generally have the vacuum pumping system, and along with the increase of injection molding machine life, the problem that the different degree ageing can appear in each part, the leakproofness reduces appears easily to lead to the gas pocket scheduling problem that causes because of the deaeration is unclean easily among the plastic goods.

Therefore, there is a need to provide a new injection molding machine to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the novel injection molding machine which can utilize the exhaust pipe to absorb residual gas in the pipe body and realize the vacuum state in the pipe body to the maximum extent, thereby ensuring that the injection molding machine can be completely defoamed in vacuum in the discharging process, effectively ensuring that no bubble exists in the ejected slurry, and avoiding the common problems of air holes and the like caused by unclean deaeration in plastic products.

A novel injection molding machine comprises an injection molding machine body, wherein the injection molding machine body comprises a feeding system and a forming system, the feeding system comprises a pipe body used for conveying injection molding raw materials, and a feeding screw capable of automatically rotating is arranged in the pipe body;

the upper circumferential surface of the pipe body is fixedly provided with a vacuum pumping pump, the input end of the vacuum pumping pump is sealed and tightly communicated with one end of the exhaust pipe, and the other end of the exhaust pipe is sealed and tightly communicated with a hole formed in the surface of the pipe body.

Preferably, a vertical blanking pipe is fixedly communicated with the upper peripheral surface of one end, far away from the forming system, of the pipe body, a small-caliber end of the blanking hopper is fixedly communicated with the top of the blanking pipe, a blanking barrel is fixedly communicated with the large-caliber end of the blanking hopper, a feeding port is formed in the top of the blanking barrel, and an intermittent blanking mechanism is further arranged in the blanking barrel.

Preferably, intermittent type unloading mechanism includes feed cylinder upper surface middle part fixed mounting's gear motor, gear motor's output shaft runs through down into the feed cylinder down and through the one end of coupling joint pivot, the vertical upper surface center of fixed connection at the uniform charging dish down of the other end of pivot, set up the hourglass material hole that a plurality of equipartitions were arranged on the uniform charging dish, the internal surface that touches feed cylinder down is all rotated to the global and bottom surface of uniform charging dish, the round hole of a plurality of equipartitions is seted up to the lower surface of feed cylinder down.

Preferably, the material leaking holes and the round holes are equal in size.

Preferably, the discharge gate of body and the fixed intercommunication of molding system's feed inlet, the one end fixed mounting that the discharge gate was kept away from to the body has the cover body, the inside axis of body is provided with the pay-off spiral, the outer end of pay-off spiral runs through in proper order the body and covers the body and through shaft coupling fixed connection on rotating motor output.

Compared with the related art, the novel injection molding machine provided by the utility model has the following beneficial effects:

the utility model provides a novel injection molding machine, which is characterized in that when a feeding process is carried out in a pipe body, a vacuum pump is synchronously opened, residual gas in the pipe body is sucked and removed by using an exhaust pipe, and the vacuum state in the pipe body is realized to the maximum extent, so that the injection molding machine can be ensured to be completely vacuum defoamed in the discharging process, no bubble is in the beaten slurry, and the common problems of air holes and the like caused by unclean defoaming in plastic products are avoided.

Drawings

FIG. 1 is a schematic structural diagram of a preferred embodiment of the novel injection molding machine provided by the present invention;

FIG. 2 is a schematic view of the interior of the feed barrel of FIG. 1;

FIG. 3 is a schematic view of the homogenizing disk of FIG. 1.

Reference numbers in the figures: 1. an injection molding machine body; 2. a feeding system; 3. a molding system; 4. rotating the motor; 5. a cover body; 6. a pipe body; 7. feeding a screw; 8. a vacuum pump is pumped; 9. an air exhaust pipe; 10. feeding the material barrel; 11. a blanking hopper; 12. a discharging pipe; 13. a reduction motor; 14. a feeding port; 15. a rotating shaft; 16. a material homogenizing disc; 17. a circular hole; 18. and (7) material leaking holes.

Detailed Description

The utility model is further described with reference to the following figures and embodiments.

Referring to fig. 1, fig. 2 and fig. 3, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of the novel injection molding machine according to the present invention; FIG. 2 is a schematic view of the interior of the feed barrel of FIG. 1; FIG. 3 is a schematic view of the homogenizing disk of FIG. 1. The method comprises the following steps: the injection molding machine comprises an injection molding machine body 1, a feeding system 2, a forming system 3, a rotating motor 4, a cover body 5, a pipe body 6, a feeding screw 7, a vacuum pumping pump 8, an air pumping pipe 9, a discharging barrel 10, a blanking hopper 11, a discharging pipe 12, a speed reducing motor 13, a feeding port 14, a rotating shaft 15, a material homogenizing plate 16, a round hole 17 and a material leaking hole 18.

In a specific implementation process, as shown in fig. 1, the injection molding machine body 1 comprises a feeding system 2 and a forming system 3, the feeding system 2 comprises a pipe body 6 for conveying injection molding raw materials, and a feeding screw 7 capable of automatically rotating is arranged in the pipe body 6;

the upper circumferential surface of the pipe body 6 is also fixedly provided with a vacuum pumping pump 8, the input end of the vacuum pumping pump 8 is sealed and tightly communicated with one end of the exhaust pipe 9, and the other end of the exhaust pipe 9 is sealed and tightly communicated with a hole formed in the surface of the pipe body 6.

It should be noted that, when the feeding process is performed in the pipe body 6, the vacuum pump 8 is synchronously opened, and the exhaust pipe 9 is utilized to suck residual gas in the pipe body 6, so that the vacuum state inside the pipe body 6 is realized to the maximum extent, thereby ensuring that the injection molding machine can be completely vacuum defoamed in the discharging process, effectively ensuring that no bubble exists in the ejected slurry, and avoiding the common problems of air holes and the like caused by unclean defoaming in plastic products.

Referring to fig. 1 and 2, an upper circumferential surface of one end of the pipe body 6, which is far away from the molding system 3, is fixedly communicated with a vertical blanking pipe 12, a top of the blanking pipe 12 is fixedly communicated with a small-caliber end of a blanking hopper 11, a large-caliber end of the blanking hopper 11 is fixedly communicated with a blanking barrel 10, a feeding port 14 is arranged at the top of the blanking barrel 10, and an intermittent blanking mechanism is further arranged in the blanking barrel 10.

Its aim at can realize orderly smooth and easy feed purpose through intermittent type unloading mechanism, avoids appearing the condition of putty in unloading pipe 12, improves the usability.

Referring to fig. 1 and 2, intermittent type unloading mechanism includes feed cylinder 10 upper surface middle part fixed mounting's gear motor 13 down, gear motor 13's output shaft runs through down into feed cylinder 10 in and through the one end of coupling joint pivot 15 down, the vertical upper surface center of fixed connection at even charging tray 16 down of the other end of pivot 15, the hourglass material hole 18 that a plurality of equipartitions were arranged has been seted up on even charging tray 16, even charging tray 16 global and the internal surface that the bottom surface all rotated contact feed cylinder 10 down, the round hole 17 of a plurality of equipartitions is seted up to the lower surface of feed cylinder 10 down.

The purpose is that the speed reducing motor 13 is started, the rotating shaft 15 is utilized to drive the material homogenizing disc 16 to rotate, when the material leaking hole 18 rotates to coincide with the round hole 17, materials can leak into the blanking hopper 11 from the blanking barrel 10, and then the intermittent blanking process is realized.

Referring to fig. 2, the material leaking hole 18 is as large as the circular hole 17.

Referring to fig. 1, the discharge port of the tube body 6 is fixedly communicated with the feed inlet of the forming system 3, a cover body 5 is fixedly mounted at one end of the tube body 6, which is far away from the discharge port, a feeding screw 7 is arranged on the central axis inside the tube body 6, and the outer end of the feeding screw 7 sequentially penetrates through the tube body 6 and the cover body 5 and is fixedly connected to the output end of the rotating motor 4 through a shaft coupling.

The working principle provided by the utility model is as follows: the rotary motor 4 is started to drive the feeding screw 7 to rotate, when the feeding process is carried out in the tube body 6, the vacuum pump 8 is synchronously opened, residual gas in the tube body 6 is sucked by the air suction pipe 9, the vacuum state inside the tube body 6 is realized to the maximum extent, meanwhile, the speed reducing motor 13 is started, the material homogenizing disc 16 is driven to rotate by the rotating shaft 15, when the material leakage hole 18 rotates to coincide with the round hole 17, materials can leak into the blanking hopper 11 from the blanking barrel 10, and then the intermittent blanking process is realized.

The circuits and controls involved in the present invention are prior art and will not be described in detail herein.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A novel injection molding machine comprises an injection molding machine body (1), wherein the injection molding machine body (1) comprises a feeding system (2) and a forming system (3), and is characterized in that the feeding system (2) comprises a pipe body (6) used for conveying injection molding raw materials, and a feeding screw (7) capable of automatically rotating is arranged in the pipe body (6);

the upper circumferential surface of the pipe body (6) is also fixedly provided with a vacuum pumping pump (8), the input end of the vacuum pumping pump (8) is sealed and is tightly connected with one end of the pumping pipe (9), and the other end of the pumping pipe (9) is sealed and is tightly connected with a hole formed in the surface of the pipe body (6).

2. The novel injection molding machine according to claim 1, wherein a vertical blanking pipe (12) is fixedly communicated with the upper peripheral surface of one end of the pipe body (6) far away from the molding system (3), the top of the blanking pipe (12) is fixedly communicated with the small-caliber end of the blanking hopper (11), the large-caliber end of the blanking hopper (11) is fixedly communicated with the blanking barrel (10), the top of the blanking barrel (10) is provided with a feeding port (14), and an intermittent blanking mechanism is further arranged in the blanking barrel (10).

3. The novel injection molding machine according to claim 2, characterized in that the intermittent blanking mechanism comprises a gear motor (13) fixedly mounted in the middle of the upper surface of the blanking barrel (10), an output shaft of the gear motor (13) penetrates downwards into the blanking barrel (10) and is connected with one end of a rotating shaft (15) through a coupler, the other end of the rotating shaft (15) vertically downwards and is fixedly connected to the center of the upper surface of the homogenizing plate (16), a plurality of uniformly distributed material leaking holes (18) are formed in the homogenizing plate (16), the peripheral surface and the bottom surface of the homogenizing plate (16) are in rotational contact with the inner surface of the blanking barrel (10), and a plurality of uniformly distributed round holes (17) are formed in the lower surface of the blanking barrel (10).

4. A new injection moulding machine according to claim 3, characterized in that said holes (18) are of equal size to the circular holes (17).

5. The novel injection molding machine according to claim 1, wherein the discharge port of the pipe body (6) is fixedly communicated with the feed port of the molding system (3), a cover body (5) is fixedly installed at one end of the pipe body (6) far away from the discharge port, a feeding screw (7) is arranged on the central axis inside the pipe body (6), and the outer end of the feeding screw (7) sequentially penetrates through the pipe body (6) and the cover body (5) and is fixedly connected to the output end of the rotating motor (4) through a coupler.