CN216941719U

CN216941719U - A high-efficient heat sink for plastic gear injection mold

Info

Publication number: CN216941719U
Application number: CN202123356876.4U
Authority: CN
Inventors: 陈岚
Original assignee: Suzhou Saiou Precision Machine Co ltd
Current assignee: Suzhou Saiou Precision Machine Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-07-12
Anticipated expiration: 2031-12-29

Abstract

The utility model provides a high-efficiency cooling device for a plastic gear injection mold, and relates to the field of gear injection. This a high-efficient heat sink for plastic gear injection mold includes mould, bed die and notes material pipe, bed die top inboard is provided with the gear shaping groove, the gear shaping groove outside is equipped with the cooling bath, the cooling bath is seted up on the bed die and the diameter is greater than the gear shaping groove, the inside cooling subassembly that is provided with of cooling bath. This a high-efficient heat sink heat for plastic gear injection mold closes ring and inside casing then conducts for the water injection coil pipe through the copper system, the liquid of water injection coil pipe inner loop takes the heat out, can improve radiating effect under the cooling effect of circulation like this, enter into the inside of cooling bath with the air through the tuber pipe, the air through the cooling bath is in the inside of carrying some heats back through other tuber pipe discharge bed die, can carry out the efficient heat dissipation, be favorable to the forming process of plastic gear.

Description

A high-efficient heat sink for plastics gear injection mold

Technical Field

The utility model relates to a cooling device, in particular to a high-efficiency cooling device for a plastic gear injection mold, and belongs to the technical field of gear injection.

Background

Injection molding is a method for producing and molding industrial products. The products are generally produced by rubber injection molding and plastic injection molding, and the injection molding can be divided into injection molding method and die casting method, wherein an injection molding machine (an injection machine or an injection molding machine for short) is a main molding device for making thermoplastic plastics or thermosetting plastics into plastic products with various shapes by using a plastic molding die, and the injection molding is realized by the injection molding machine and the die.

When the existing plastic gear injection mold is actually used, heat dissipation is generally carried out by using the suggested copper pipe, and the following problems exist in the case that: when the mold is used for injection molding of the plastic gear, the heat dissipation performance of the mold is poor, so that the processing quality of the plastic gear is affected.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to solve the problems and provide a high-efficiency cooling device for a plastic gear injection mold, so as to solve the problem that the machining quality of a small plastic gear is affected due to poor heat dissipation performance of the mold during injection machining of the plastic gear in the prior art.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: a high-efficient heat sink for plastic gear injection mold, including upper die, bed die and notes material pipe, bed die top inboard is provided with gear shaping groove, the gear shaping groove outside is equipped with the cooling bath, the cooling bath is seted up on the bed die and the diameter is greater than gear shaping groove, the inside cooling subassembly that is provided with of cooling bath.

Preferably, the cooling subassembly includes the frame, the frame inboard is provided with the inside casing, the diameter of inside casing is less than the diameter of frame, a plurality of supports of fixedly connected with between inside casing and the frame, a plurality of through-holes have been seted up on the support, be provided with the water injection coil pipe between frame and the inside casing, the water injection coil pipe both ends are worn through a plurality of through-holes and are passed the frame and extend to the outside of frame, a water injection coil pipe tip is provided with the restriction subassembly.

Preferably, the inside of the inner frame is provided with a copper fitting ring, the copper fitting ring is fixedly connected with the inner frame, the inside of the copper fitting ring is coated with heat dissipation silicone grease, the heat dissipation silicone grease is only used as an alternative material, and other heat dissipation materials can be used for filling, so that the gap between the copper fitting ring and the inner frame is reduced, the heat dissipation efficiency is improved, the copper fitting ring can be selected according to the size of the gear forming groove, the copper fitting rings with different sizes can be used for being stacked and mounted, and the heat dissipation materials are also filled between the adjacent copper fitting rings.

Preferably, the restriction subassembly includes the lantern ring, the lantern ring sets up to the annular, water injection coil pipe tip is located to the fixed cover of lantern ring, the lantern ring both sides are all fixed and are provided with the restriction ring, the restriction ring sets up the annular that is less than the lantern ring for the diameter, and the restriction ring is used for carrying out position restriction to the tip of lantern ring and water injection coil pipe.

Preferably, the restriction subassembly still includes restriction groove and restriction pole, the restriction groove is seted up on the bed die and is set up and communicate with each other with cooling bath one side, the restriction pole sets up inside the restriction groove, the quantity of restriction pole is the same with the restriction ring, the diameter of restriction pole slightly is less than the internal diameter of restriction ring to make things convenient for the restriction ring cover on the restriction pole, avoid the bite.

Preferably, the intercommunicating pore has been seted up on the bed die, the intercommunicating pore sets up to two sections, intercommunicating pore and cooling bath set up to communicate with each other, and the intercommunicating pore is used for providing the business turn over of external circulating water pipe, conveniently assembles, and common quick-connect water pipe head can be adopted in the equipment between circulating water pipe and the water injection coil pipe.

Preferably, the lower mold is fixedly communicated with an air pipe, the air pipe is communicated with the cooling tank, and the air pipe can be connected with external blowing equipment, such as a fan, a blower and the like, so as to increase the air flow rate in the space of the cooling tank and accelerate heat dissipation.

The utility model provides a high-efficiency cooling device for a plastic gear injection mold, which has the following beneficial effects:

1. this a high-efficient heat sink for plastic gear injection mold, the heat is through copper system laminating ring and inside casing then conduction for the water injection coil pipe, the liquid of water injection coil pipe inner loop takes the heat out, can improve radiating effect under the cooling effect of circulation like this, enter into the inside of cooling bath with the air through the tuber pipe, simultaneously with the setting of two sections tuber pipe relatively horizontalities, the air through the cooling bath is in the inside of carrying some heats back through other tuber pipe discharge bed die, can carry out the efficient heat dissipation, be favorable to the forming process of plastic gear.

2. This a high-efficient heat sink for plastic gear injection mold, this cooling assembly's setting for annular structure design, comparatively laminating gear shaping shape, compact structure, occupation space is little, convenient to use.

Drawings

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

FIG. 2 is a schematic view of the lower mold structure of the present invention;

FIG. 3 is a schematic view of a cooling assembly according to the present invention;

FIG. 4 is an enlarged view of the portion A of FIG. 3 according to the present invention.

In the figure: 1. an upper die; 2. a lower die; 3. a material injection pipe; 4. a gear forming groove; 5. a cooling tank; 6. an outer frame; 7. an inner frame; 8. a support; 9. a water injection coil pipe; 10. copper-made fitting rings; 11. a collar; 12. a confinement ring; 13. a limiting groove; 14. a restraining bar; 15. a communicating hole; 16. and (7) an air pipe.

Detailed Description

The embodiment of the utility model provides a high-efficiency cooling device for a plastic gear injection mold.

Referring to fig. 1, 2, 3 and 4, the cooling device comprises an upper die 1, a lower die 2 and a material injection pipe 3, wherein a gear forming groove 4 is formed in the inner side of the top of the lower die 2, a cooling groove 5 is formed in the outer side of the gear forming groove 4, the cooling groove 5 is formed in the lower die 2 and has a diameter larger than that of the gear forming groove 4, a cooling assembly is arranged in the cooling groove 5, an air pipe 16 is fixedly communicated with the lower die 2, the air pipe 16 is communicated with the cooling groove 5, a communication hole 15 is formed in the lower die 2, the communication hole 15 is provided in two sections, and the communication hole 15 is communicated with the cooling groove 5.

The cooling assembly comprises an outer frame 6, an inner frame 7 is arranged on the inner side of the outer frame 6, the diameter of the inner frame 7 is smaller than that of the outer frame 6, a plurality of supports 8 are fixedly connected between the inner frame 7 and the outer frame 6, a plurality of through holes are formed in the supports 8, a water injection coil pipe 9 is arranged between the outer frame 6 and the inner frame 7, two ends of the water injection coil pipe 9 penetrate through the through holes and penetrate through the outer side of the outer frame 6 to extend to the outer frame 6, a limiting assembly is arranged at one end of the water injection coil pipe 9, a copper bonding ring 10 is arranged on the inner side of the inner frame 7, the copper bonding ring 10 is fixedly connected with the inner frame 7, and heat dissipation silicone grease is coated on the inner side of the copper bonding ring 10.

Specifically, when the gear is produced and injected, a material enters the inside of the gear forming groove 4 through the material injection pipe 3 for forming, when in actual use, the input end and the output end of the circulating water pipe penetrate through the two communicating holes 15, the input end and the output end of the circulating water pipe are respectively connected with the two ends of the water injection coil pipe 9, the position of the lantern ring 11 is aligned to the limiting groove 13, the copper fitting ring 10 is sleeved on the outer side of the gear forming groove 4, the detailed description of the lantern ring 11 and the limiting groove 13 can be referred to below, when in sleeving, heat dissipation silicone grease or other heat conduction materials are coated between the copper fitting ring 10 and the gear forming groove 4, so as to avoid the problem of poor heat conduction function caused by loose contact, heat is conducted to the water injection coil pipe 9 through the copper fitting ring 10 and the inner frame 7, the liquid circulating inside the water injection coil pipe 9 carries the heat out, so that the heat dissipation effect can be improved under the circulating cooling effect, meanwhile, the air pipe 16 is arranged on the lower die 2, the air pipe 16 can be connected with a fan device, after the fan is connected with the air pipe 16, the fan is started, air can enter the cooling groove 5 through the air pipe 16, meanwhile, the two sections of air pipes 16 are arranged horizontally, the air passing through the cooling groove 5 is discharged out of the lower die 2 through the other air pipes 16 after carrying some heat, efficient heat dissipation can be achieved, and the forming process of the plastic gear is facilitated.

When gear production was moulded plastics, the material enters into the inside of gear shaping groove 4 through annotating material pipe 3 and takes shape, this is prior art, and the event is not repeated, it is here still to explain that, in order to avoid the material to sputter the inside of cooling bath 5 from gear shaping groove 4 inside, the event should set up in the same cover plate of outside combination shape in cooling bath 5 and inside casing 7 and gear shaping groove 4, change to on the cooling subassembly, in order to avoid the material to spill and cause the influence to the cooling subassembly, here is not as main design point, the event does not carry out too much description.

Referring to fig. 2, 3 and 4 again, the limiting assembly includes a ring 11, the ring 11 is set to be annular, the ring 11 is fixedly sleeved on one end of the water injection coil pipe 9, limiting rings 12 are fixedly arranged on both sides of the ring 11, and the limiting rings 12 are set to be annular with a diameter smaller than that of the ring 11. The limiting assembly further comprises a limiting groove 13 and limiting rods 14, the limiting groove 13 is formed in the lower die 2 and is communicated with one side of the cooling groove 5, the limiting rods 14 are arranged inside the limiting groove 13, the number of the limiting rods 14 is the same as that of the limiting rings 12, and the diameter of each limiting rod 14 is slightly smaller than the inner diameter of each limiting ring 12.

It is specific, when installing the cooling subassembly, it can the substep go on, now penetrate two intercommunicating pores 15 respectively with circulating pipe's input and output, then put into cooling bath 5's inside with the cooling subassembly is whole, carry out hidden placing, reduce the fashioned influence of gear, then be connected circulating pipe's input and output and water injection coil pipe 9's both ends, make restriction ring 12 align two gag lever posts 14 simultaneously, carry out position restriction with lantern ring 11, avoid the cooling subassembly to have and rock, the setting of this cooling subassembly, for the ring configuration design, comparatively laminating gear shaping shape, compact structure, and small space occupation, and convenient use.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, and such changes and modifications are within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A high-efficient heat sink for plastic gear injection mold, including last mould (1), bed die (2) and notes material pipe (3), its characterized in that: the gear forming device is characterized in that a gear forming groove (4) is formed in the inner side of the top of the lower die (2), a cooling groove (5) is formed in the outer side of the gear forming groove (4), the cooling groove (5) is formed in the lower die (2), the diameter of the cooling groove is larger than that of the gear forming groove (4), and a cooling assembly is arranged inside the cooling groove (5).

2. The efficient cooling device for plastic gear injection molds of claim 1, wherein: the cooling assembly comprises an outer frame (6), an inner frame (7) is arranged on the inner side of the outer frame (6), the diameter of the inner frame (7) is smaller than that of the outer frame (6), a plurality of supports (8) are fixedly connected between the inner frame (7) and the outer frame (6), a plurality of through holes are formed in the supports (8), a water injection coil pipe (9) is arranged between the outer frame (6) and the inner frame (7), two ends of the water injection coil pipe (9) penetrate through the plurality of through holes and penetrate through the outer side of the outer frame (6) and extend to the outer frame (6), and a limiting assembly is arranged at one end of the water injection coil pipe (9).

3. The efficient cooling device for plastic gear injection molds of claim 2, wherein: the inner side of the inner frame (7) is provided with a copper-made fit-on ring (10), the copper-made fit-on ring (10) is fixedly connected with the inner frame (7), and the inner side of the copper-made fit-on ring (10) is coated with heat dissipation silicone grease.

4. The efficient cooling device for plastic gear injection molds of claim 2, wherein: the restriction subassembly includes the lantern ring (11), lantern ring (11) set up to the annular, water injection coil pipe (9) tip is located to lantern ring (11) fixed cover, lantern ring (11) both sides are all fixed and are provided with restrictor ring (12), restrictor ring (12) set up to the annular that the diameter is less than lantern ring (11).

5. The efficient cooling device for plastic gear injection molds of claim 2, wherein: the limiting assembly further comprises a limiting groove (13) and a limiting rod (14), the limiting groove (13) is formed in the lower die (2) and is communicated with one side of the cooling groove (5), the limiting rod (14) is arranged inside the limiting groove (13), the number of the limiting rods (14) is the same as that of the limiting rings (12), and the diameter of the limiting rod (14) is slightly smaller than the inner diameter of the limiting rings (12).

6. The efficient cooling device for plastic gear injection molds of claim 1, wherein: the lower die (2) is provided with a communicating hole (15), the communicating hole (15) is provided with two sections, and the communicating hole (15) is communicated with the cooling tank (5).

7. The efficient cooling device for plastic gear injection molds of claim 1, wherein: an air pipe (16) is fixedly communicated with the lower die (2), and the air pipe (16) is communicated with the cooling groove (5).