CN215550694U

CN215550694U - Plastic product processing injection mold

Info

Publication number: CN215550694U
Application number: CN202121896477.4U
Authority: CN
Inventors: 刘善木
Original assignee: Xiamen Honglin Plastic Mould Co ltd
Current assignee: Xiamen Honglin Plastic Mould Co ltd
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2022-01-18
Anticipated expiration: 2031-08-13

Abstract

The utility model relates to an injection mold for processing plastic products, which comprises a base, a lower mold and a support pillar, wherein the lower mold is provided with a mold cavity; be provided with first cavity in the bed die, install cooling module in the first cavity, cooling module includes the first cooler bin fixed with first cavity, with the fixed second cooler bin of first cavity and install the cooling plate on first cooler bin and second cooler bin jointly, it has feed liquor pipe and drain pipe to fix respectively and communicate on the lateral wall of cooling plate both sides, feed liquor pipe and first cooler bin intercommunication, drain pipe and second cooler bin intercommunication, the cooling plate lateral wall is fixed with the negative pressure pump with the drain pipe intercommunication, the fixed and communication of first cooler bin lateral wall has the liquid feeding pipe, the fixed and communication of second cooler bin lateral wall has the fluid-discharge tube. According to the utility model, the worker turns on the negative pressure pump, the negative pressure pump pumps air in the second cavity, the second cavity forms negative pressure, and cooling liquid enters the second cavity through the liquid inlet pipe, so that the cooling plate can cool a plastic finished product conveniently.

Description

Plastic product processing injection mold

Technical Field

The utility model relates to the technical field of plastic processing equipment, in particular to an injection mold for processing plastic products.

Background

An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the method comprises the steps of injecting heated and melted plastic into a mold cavity from an injection molding machine at high pressure, and cooling and solidifying to obtain a formed product.

The utility model discloses a plastic products processing injection mold is disclosed in the chinese utility model patent of grant bulletin number CN212362532U, a plastic products processing injection mold, from last roof and the bottom plate of down including in proper order, first drive arrangement's drive shaft is connected the setting with the drive connecting plate drive of bottom, the drive connecting plate is connected with the clamp plate of bottom through first drive connecting rod, be provided with the movable mould under the clamp plate, be provided with down the cover half under the movable mould, go up the corresponding setting in die cavity and lower die cavity, second drive arrangement's drive shaft passes through second drive connecting rod and is connected the setting with the liftout plate drive, the hole has been seted up to the bottom intermediate position of lower die cavity, the mobilizable connection setting of liftout plate is in the hole.

However, the inventor believes that the technical scheme has the following defects: after the injection molding is finished, when a finished product needs to be taken out, the finished product needs to be cooled automatically, so that the production time is prolonged, and the continuous processing of the product is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model provides a plastic product processing injection mold for rapidly cooling a processed plastic finished product.

The utility model provides a plastic product processing injection mold, which adopts the following technical scheme:

a plastic product processing injection mold comprises a base, a lower mold and a support column which are arranged on the base, a top plate fixed with the upper end of the support column, a driving device fixed with the bottom surface of the top plate and an upper mold arranged at the bottom of the driving device, wherein the upper surface of the lower mold is provided with a mold cavity, the bottom wall of the mold cavity is provided with a first through hole, and an ejection assembly used for ejecting a processed plastic finished product is arranged in the first through hole;

a first cavity is arranged in the lower die, a cooling assembly is arranged in the first cavity, the cooling assembly comprises a first cooling box fixed with the inner bottom wall of the first cavity, a second cooling box fixed with the inner bottom wall of the first cavity, and a cooling plate which is jointly arranged on the side wall of the first cooling box close to one side of the first through hole and the side wall of the second cooling box close to one side of the first through hole, a second cavity is arranged in the cooling plate, the side walls at the two sides of the cooling plate are respectively fixed and communicated with a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe is fixed and communicated with the first cooling box, the liquid outlet pipe is fixed and communicated with the second cooling box, the lateral wall that the cooling plate is close to drain pipe one side is fixed with the negative pressure pump with the drain pipe intercommunication, the lateral wall that first through-hole one side was kept away from to first cooler bin is fixed and is communicated with the liquid feeding pipe, the lateral wall that first through-hole one side was kept away from to the second cooler bin is fixed and is communicated with the fluid-discharge tube.

Through adopting above-mentioned technical scheme, in daily use, the coolant liquid is by the liquid feeding pipe entering first cooler bin in, when needs cool off the plastics finished product after the processing is accomplished, the staff need open the negative pressure pump, make the work of negative pressure pump and extract the air in the second cavity, make the second cavity form the negative pressure, with this make the coolant liquid by getting into in the second cavity through the feed liquor pipe in the first cooler bin, with this be convenient for the cooling plate cools off the plastics finished product after the processing is accomplished, be favorable to the continuous processing product.

The utility model is further arranged that one end of the liquid inlet pipe, which is far away from the cooling plate, is positioned at a position close to the bottom wall in the first cooling box.

Through adopting above-mentioned technical scheme, after the staff opened the negative pressure pump, the negative pressure pump began working for the intraductal negative pressure that forms of feed liquor, because feed liquor pipe opening is located the position that is close to diapire in the first cooling box, be favorable to feed liquor pipe to form the negative pressure when the coolant liquid in first cooling box is less, so that the coolant liquid gets into in the second cavity along the feed liquor pipe.

The utility model is further arranged in that a communicating pipe is fixedly communicated between the first cooling box and the second cooling box, and an electric pump communicated with the communicating pipe is fixedly arranged on the side wall of the second cooling box close to one side of the first through hole and close to the communicating pipe.

Through adopting above-mentioned technical scheme, after the coolant liquid got into the second cooling tank through the drain pipe, the staff need open the charge pump to this makes the coolant liquid by communicating pipe backward flow to first cooling tank, is favorable to the used cyclically of coolant liquid.

The utility model is further provided that electromagnetic valves are respectively arranged on the liquid feeding pipe and the liquid discharging pipe, and the two electromagnetic valves are respectively used for controlling the opening and closing of the liquid feeding pipe and the liquid discharging pipe.

Through adopting above-mentioned technical scheme, when needs coolant liquid circulation use, the staff only need close the solenoid valve on liquid feeding pipe and the fluid-discharge tube for first cooling tank forms the closed loop with the second cooling tank, is favorable to the coolant liquid to form circulation flow in first cooling tank and second cooling tank.

The utility model is further arranged that a check valve for controlling the one-way conduction of the communicating pipe is fixed on the communicating pipe.

Through adopting above-mentioned technical scheme, when using the coolant liquid of need changing after a period, the staff need all open check valve and solenoid valve for communicating pipe is closed, makes the liquid feeding pipe and drain pipe open simultaneously, and at this moment, the staff only need open the negative pressure pump, so that the coolant liquid loops through feed liquor pipe, second cavity and drain pipe in getting into the second cooling tank by first cooling tank in with this, thereby make the coolant liquid pass through the fluid-discharge tube and discharge, so that the staff changes the coolant liquid.

The utility model is further provided that the inner top wall of the cooling plate is provided with a second through hole, the axis of the second through hole is superposed with the axis of the first through hole, and the inner diameter of the second through hole is larger than that of the first through hole.

By adopting the technical scheme, when the processed plastic finished product needs to be ejected, the worker operates the ejection assembly to eject the plastic finished product through the first through hole, so that the probability that the ejection assembly is influenced by the cooling plate to stop working when working is reduced.

The utility model is further arranged that an arc-shaped pipe is integrally formed at the position of the communicating pipe close to the first through hole, and the inner diameter of the arc-shaped surface of the arc-shaped pipe close to the first through hole is larger than that of the first through hole.

By adopting the technical scheme, when the processed plastic finished product needs to be ejected, the worker operates the ejection assembly to eject the plastic finished product through the first through hole, so that the probability that the ejection assembly is influenced by the communicating pipe to stop working when working is reduced.

The side wall of one side of the lower die is provided with a mounting opening, and the side wall of the mounting opening is hinged with a side door for closing the mounting opening.

Through adopting above-mentioned technical scheme to this staff of being convenient for opens the side door, and installs and maintains each spare part in the lower mould.

In summary, the utility model includes at least one of the following beneficial technical effects:

1. in daily use, cooling liquid enters the first cooling box through the liquid feeding pipe, when a finished plastic product after being processed needs to be cooled, a worker needs to open the negative pressure pump to enable the negative pressure pump to work and pump air in the second cavity, so that negative pressure is formed in the second cavity, the cooling liquid enters the second cavity from the first cooling box through the liquid feeding pipe, the cooling plate is convenient to cool the finished plastic product after being processed, and continuous product processing is facilitated;

2. according to the utility model, after the negative pressure pump is turned on by a worker, the negative pressure pump starts to work, so that negative pressure is formed in the liquid inlet pipe, and the opening of the liquid inlet pipe is positioned at a position close to the bottom wall in the first cooling box, so that negative pressure is formed when the liquid inlet pipe has less cooling liquid in the first cooling box, and the cooling liquid can conveniently enter the second cavity along the liquid inlet pipe;

3. in the utility model, after the cooling liquid enters the second cooling box through the liquid outlet pipe, a worker needs to turn on the electric pump, so that the cooling liquid flows back to the first cooling box through the communicating pipe, and the recycling of the cooling liquid is facilitated.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of an embodiment of the present invention;

fig. 3 is an enlarged schematic view of a in fig. 2.

Description of reference numerals: 1. a base; 11. a support pillar; 12. a top plate; 13. a drive device; 131. an upper die; 2. a lower die; 21. a die cavity; 22. a first through hole; 23. a first cavity; 24. an installation port; 241. a side door; 3. ejecting the assembly; 31. ejecting the plate; 32. a hydraulic cylinder; 4. a cooling assembly; 41. a first cooling tank; 411. a liquid inlet pipe; 412. a liquid feeding pipe; 42. a second cooling tank; 421. a liquid outlet pipe; 422. a liquid discharge pipe; 43. a cooling plate; 431. a second cavity; 432. a vertical plate; 433. a second through hole; 44. a communicating pipe; 441. a check valve; 442. an arc tube; 5. a negative pressure pump; 6. an electric pump; 7. an electromagnetic valve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1-3, an injection mold for processing plastic products includes a base 1, a top plate 12, an upper mold 131, a lower mold 2, an ejection assembly 3, a cooling assembly 4, a liquid feeding pipe 412, and a liquid discharging pipe 422.

The base 1 is a horizontally arranged circular plate-shaped structure, and a support column 11 and a lower die 2 are fixed on the upper surface of the base 1. The support column 11 is the cylindric structure of vertical setting, and the support column 11 is provided with a plurality ofly and about 1 axis evenly distributed of base, and support column 11 upper surface is fixed with roof 12. The top plate 12 is a horizontally arranged circular plate-shaped structure, a driving device 13 is fixed on the bottom surface of the top plate 12, an upper die 131 is installed at the bottom of the driving device 13, and the driving device 13 is used for driving the upper die 131 to move up and down.

The lower die 2 is of a rectangular block structure, the lower die 2 is located among the support columns 11, a die cavity 21 is formed in the upper surface of the lower die 2, and a first through hole 22 is formed in the bottom wall of the die cavity 21. The first through-hole 22 is a vertically arranged circular through-hole.

The ejection assembly 3 is used for ejecting the processed plastic finished product, the ejection assembly 3 is installed in the first through hole 22, and the ejection assembly 3 comprises an ejection plate 31 and a hydraulic cylinder 32. The bottom surface of the hydraulic cylinder 32 is fixed to the upper surface of the base 1, the axis of the hydraulic cylinder 32 coincides with the axis of the base 1, the ejector plate 31 is of a horizontally arranged disc-shaped structure, the side wall of the ejector plate 31 is abutted to the inner wall of the first through hole 22, and the bottom surface of the ejector plate 31 is fixed to the upper surface of the hydraulic cylinder 32.

A first cavity 23 is provided in the lower mold 2, a cooling module 4 is installed in the first cavity 23, and the cooling module 4 includes a first cooling tank 41, a second cooling tank 42, and a cooling plate 43. The first cooling box 41 and the second cooling box 42 are both rectangular box-shaped structures, and the bottom surfaces of the first cooling box 41 and the second cooling box 42 are both fixed with the bottom wall of the first cavity 23. The cooling plate 43 is a rectangular plate-shaped structure, vertical plates 432 are integrally formed on the peripheral side walls of the cooling plate 43, the top of each vertical plate 432 is fixed with the inner top wall of the first cavity 23, and a second cavity 431 is arranged in a structure formed by the cooling plate 43 and the four vertical plates 432.

The side wall of the cooling plate 43 close to one side of the first cooling box 41 is fixed and communicated with a liquid inlet pipe 411 fixed and communicated with the first cooling box 41, the liquid inlet pipe 411 is a tubular structure with a round cross section, the liquid inlet pipe 411 is fixed and communicated with the first cooling box 41, and an opening of one end of the liquid inlet pipe 411 far away from the cooling plate 43 is positioned close to the inner bottom wall of the first cooling box 41.

The side wall of the cooling plate 43 near the second cooling box 42 is fixed and communicated with a liquid outlet pipe 421 fixed and communicated with the second cooling box 42, and the liquid outlet pipe 421 is a tubular structure with a circular cross section.

The liquid feeding pipe 412 is a horizontally arranged round tubular structure, the liquid feeding pipe 412 is used for adding cooling liquid into the first cooling tank 41, one end of the liquid feeding pipe 412 is fixed and communicated with the side wall of the first cooling tank 41 far away from the first through hole 22, and the other end of the liquid feeding pipe 412 penetrates through the side wall of one side of the lower die 2 and is fixed with the lower die 2.

The liquid discharge pipe 422 is a horizontally arranged circular tube-shaped structure, the liquid discharge pipe 422 is used for discharging the used cooling liquid in the second cooling tank 42, one end of the liquid discharge pipe 422 is fixed and communicated with the side wall of the second cooling tank 42 far away from the first through hole 22, and the other end of the liquid feeding pipe 412 penetrates through the side wall of one side of the lower mold 2 and is fixed with the lower mold 2.

A negative pressure pump 5 is fixed on the side wall of one side of the cooling plate 43 near the liquid outlet pipe 421, and the negative pressure pump 5 is fixed and communicated with the liquid outlet pipe 421.

In daily use, the coolant liquid enters the first cooling box 41 through the liquid feeding pipe 412, when the finished plastic product after being processed needs to be cooled, the worker needs to open the negative pressure pump 5, so that the negative pressure pump 5 works and extracts air in the second cavity 431, the second cavity 431 forms negative pressure, the coolant liquid enters the second cavity 431 through the liquid feeding pipe 411 from the first cooling box 41, and the cooling plate 43 cools the finished plastic product after being processed conveniently.

In order to facilitate the recycling of the cooling liquid, the liquid feeding pipe 412 and the liquid discharging pipe 422 are respectively provided with an electromagnetic valve 7, the two electromagnetic valves 7 are respectively used for controlling the opening and closing of the liquid feeding pipe 412 and the liquid discharging pipe 422, and the first cooling box 41 and the second cooling box 42 are fixedly communicated with each other through a communicating pipe 44. The communication pipe 44 is a horizontally arranged tubular structure, a check valve 441 for controlling the opening and closing of the communication pipe 44 is fixed on the communication pipe 44, and the electric pump 6 is fixed on the outer wall of the communication pipe. When the coolant needs to be circulated, the worker opens the check valve 441 and the electric pump 6, and closes the electromagnetic valve 7, so that the electric pump 6 delivers the coolant in the second cooling tank 42 to the first cooling tank 41 through the communication pipe 44, thereby circulating the coolant.

When the coolant in the cooling box needs to be replaced, the worker needs to open the electromagnetic valve 7 and the negative pressure pump 5, and close the electric pump 6 and the check valve 441 simultaneously, so that the coolant sequentially enters the second cooling box 42 through the liquid inlet pipe 411, the second cavity 431 and the liquid outlet pipe 421 from the first cooling box 41, and is discharged through the liquid outlet pipe 422 from the second cooling box 42, at the moment, the worker only needs to input the coolant to be added into the first cooling box 41 through the liquid adding pipe 412, and the worker can replace the coolant conveniently.

In order to reduce the probability that the ejection assembly 3 stops working when being influenced by the cooling plate 43 during working, the inner top wall of the cooling plate 43 is provided with a second through hole 433, the second through hole 433 is overlapped with the axis of the first through hole 22, and the inner diameter of the second through hole 433 is larger than that of the first through hole 22; when the processed plastic finished product needs to be ejected, the worker operates the ejection assembly 3 to eject the plastic finished product through the first through hole 22, so that the probability that the ejection assembly 3 stops working due to the influence of the cooling plate 43 during working is reduced.

In order to reduce the probability that the ejection assembly 3 stops working under the influence of the communication pipe 44 when working, the communication pipe 44 is integrally formed with an arc-shaped pipe 442 at a position close to the first through hole 22, and the inner diameter of the arc-shaped surface of the arc-shaped pipe 442 close to the first through hole 22 is larger than that of the first through hole 22; when the processed plastic finished product needs to be ejected, the worker operates the ejection assembly 3 to eject the plastic finished product through the first through hole 22, so that the probability that the ejection assembly 3 stops working under the influence of the communication pipe 44 during working is reduced.

The use principle of the embodiment is as follows:

in daily use, the coolant liquid enters the first cooling box 41 through the liquid feeding pipe 412, when the finished plastic product after being processed needs to be cooled, the worker needs to open the negative pressure pump 5, so that the negative pressure pump 5 works and extracts air in the second cavity 431, the second cavity 431 forms negative pressure, the coolant liquid enters the second cavity 431 through the liquid feeding pipe 411 from the first cooling box 41, and the cooling plate 43 cools the finished plastic product after being processed conveniently. When the coolant needs to be circulated, the worker opens the check valve 441 and the electric pump 6, and closes the electromagnetic valve 7, so that the electric pump 6 delivers the coolant in the second cooling tank 42 to the first cooling tank 41 through the communication pipe 44, thereby circulating the coolant. When the coolant in the cooling box needs to be replaced, the worker needs to open the electromagnetic valve 7 and the negative pressure pump 5, and close the electric pump 6 and the check valve 441 simultaneously, so that the coolant sequentially enters the second cooling box 42 through the liquid inlet pipe 411, the second cavity 431 and the liquid outlet pipe 421 from the first cooling box 41, and is discharged through the liquid outlet pipe 422 from the second cooling box 42, at the moment, the worker only needs to input the coolant to be added into the first cooling box 41 through the liquid adding pipe 412, and the worker can replace the coolant conveniently.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A plastic product processing injection mold comprises a base (1), a lower mold (2) and a support column (11) which are arranged on the base (1), a top plate (12) fixed with the upper end of the support column (11), a driving device (13) fixed with the bottom surface of the top plate (12) and an upper mold (131) arranged at the bottom of the driving device (13), wherein a mold cavity (21) is formed in the upper surface of the lower mold (2), a first through hole (22) is formed in the inner bottom wall of the mold cavity (21), and an ejection assembly (3) for ejecting a processed plastic finished product is arranged in the first through hole (22); the method is characterized in that:

a first cavity (23) is arranged in the lower die (2), a cooling assembly (4) is arranged in the first cavity (23), the cooling assembly (4) comprises a first cooling box (41) fixed with the inner bottom wall of the first cavity (23), a second cooling box (42) fixed with the inner bottom wall of the first cavity (23) and a cooling plate (43) jointly installed on the side wall of one side, close to the first through hole (22), of the first cooling box (41) and the side wall of one side, close to the first through hole (22), of the second cooling box (42), a second cavity (431) is formed in the cooling plate (43), a liquid inlet pipe (411) and a liquid outlet pipe (421) are respectively fixed and communicated on the side walls of two sides of the cooling plate (43), the liquid inlet pipe (411) is fixed and communicated with the first cooling box (41), the liquid outlet pipe (421) is fixed and communicated with the second cooling box (42), the lateral wall that cooling plate (43) are close to drain pipe (421) one side is fixed with negative pressure pump (5) with drain pipe (421) intercommunication, the lateral wall that first through-hole (22) one side was kept away from in first cooling tank (41) is fixed and is communicated with and has liquid feeding pipe (412), the lateral wall that first through-hole (22) one side was kept away from in second cooling tank (42) is fixed and is communicated with and has fluid-discharge tube (422).

2. The plastic product processing injection mold of claim 1, wherein: one end of the liquid inlet pipe (411) far away from the cooling plate (43) is positioned close to the inner bottom wall of the first cooling box (41).

3. The plastic product processing injection mold of claim 2, wherein: and a communication pipe (44) is fixedly communicated between the first cooling box (41) and the second cooling box (42).

4. The plastic product processing injection mold of claim 3, wherein: electromagnetic valves (7) are respectively installed on the liquid adding pipe (412) and the liquid discharging pipe (422), and the two electromagnetic valves (7) are respectively used for controlling the opening and closing of the liquid adding pipe (412) and the liquid discharging pipe (422).

5. The plastic product processing injection mold of claim 4, wherein: a check valve (441) used for controlling the one-way conduction of the communication pipe (44) is fixed on the communication pipe (44), and an electric pump (6) communicated with the communication pipe (44) is fixed on the side wall of the second cooling tank (42) close to one side of the first through hole (22).

6. The plastic product processing injection mold of claim 5, wherein: second through-hole (433) have been seted up to roof in cooling plate (43), second through-hole (433) and first through-hole (22) axis coincidence, and the internal diameter of second through-hole (433) is greater than the internal diameter of first through-hole (22).

7. The plastic product processing injection mold of claim 6, wherein: an arc-shaped pipe (442) is integrally formed at the position, close to the first through hole (22), of the communicating pipe (44), and the inner diameter of the arc-shaped surface, close to the first through hole (22), of the arc-shaped pipe (442) is larger than that of the first through hole (22).

8. The plastic product processing injection mold of claim 1, wherein: installing port (24) have been seted up to the lateral wall of lower mould (2) one side, installing port (24) lateral wall articulates there is side door (241) that is used for closed installing port (24).