CN218519137U

CN218519137U - Low-shrinkage injection mold for processing plastic products

Info

Publication number: CN218519137U
Application number: CN202222170819.5U
Authority: CN
Inventors: 刘厚春; 李宁
Original assignee: Jurong Chengchun Plastic Co ltd
Current assignee: Jurong Chengchun Plastic Co ltd
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2023-02-24
Anticipated expiration: 2032-08-17

Abstract

The utility model provides a low-shrinkage injection mold for processing plastic products, which comprises a base, wherein the upper end of the base is connected with a mold; the upper end of the base is symmetrically connected with a first side plate and a second side plate, the outer walls of the first side plate and the second side plate are respectively connected with a first turbo fan and a second turbo fan, the upper ends of the first side plate and the second side plate are connected with a top plate, the upper end of the top plate is connected with an air cylinder, the output end of the air cylinder penetrates through the top plate and is connected with a push plate, the lower end of the push plate is connected with a plurality of connecting shafts, and the lower ends of the connecting shafts are connected with an upper die; the utility model discloses a first turbofan and second turbofan, with the leading-in heat dissipation intracavity portion of going up mould and the inside setting of lower mould of cold wind, cold wind is leading-in to heat dissipation intracavity portion to both sides diffusion, and the thermovent that sets up on mould and the lower mould on the cooperation realizes the purpose to injection mold rapid cooling, avoids taking out back injection mold and produces the shrink easily under the exogenic action, leads to injection mold's appearance to change.

Description

Low-shrinkage injection mold for processing plastic products

Technical Field

The utility model relates to an injection mold's technical field specifically is a processing plastic products's low shrink injection mold.

Background

An injection molding machine is a processing method used for batch production of parts with complex shapes, and particularly relates to a method for injecting a material which is melted by heating into a mold cavity from high pressure, and obtaining a formed product after cooling and solidification.

At present, most of existing injection molding machines are naturally cooled, when a mold is taken out, some molds are possibly not completely cooled, and the mold is easily shrunk under the action of external force after being taken out, so that the appearance of the mold is changed, and therefore, the low-shrinkage injection mold for processing plastic products is provided.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem, the utility model provides a low shrink injection mold of processing plastic products.

The utility model provides a low shrink injection mold of processing plastic products adopts following technical scheme:

the injection molding machine comprises a base, wherein a mold is connected to the upper end of the base, the mold comprises an upper mold and a lower mold, a mold cavity is formed by the contact between the upper mold and the lower mold, heat dissipation cavities are formed in the inner walls of the upper mold and the lower mold, heat dissipation openings communicated with the heat dissipation cavities are formed in the outer walls of the left side and the right side of the upper mold and the lower mold, an injection molding pipeline is connected to the upper end of the upper mold, and the injection molding pipeline penetrates through the upper mold and extends into the mold cavity; the improved die is characterized in that a first side plate and a second side plate are symmetrically connected to the upper end of the base, the first side plate and the second side plate are located on the left side and the right side of the die, a first turbofan and a second turbofan are connected to the outer wall of the first side plate and the outer wall of the second side plate respectively, an air guide pipe is connected to an output port of the first turbofan and an output port of the second turbofan, the air guide pipe penetrates through the upper die and the outer wall of the lower die respectively and stretches into the heat dissipation cavity, a top plate is connected to the upper ends of the first side plate and the second side plate, an air cylinder is connected to the upper end of the top plate, an output end of the air cylinder penetrates through the top plate and is connected with a push plate, the lower end of the push plate is connected with a plurality of connecting shafts, and the lower end of the connecting shafts is connected with the upper die.

Furthermore, the heat dissipation cavities arranged inside the upper die and the lower die are connected with air guide blocks, and the air guide blocks correspond to pipeline openings of the air guide pipes.

Furthermore, a plurality of clamping grooves are symmetrically formed in one end face, in contact with the lower die, of the upper die.

Furthermore, an inclined opening is formed in the outer side of the clamping groove.

Furthermore, the outer wall of one side of the first side plate corresponding to the outer wall of one side of the second side plate is connected with an electric push rod, the output end of the electric push rod is connected with a trapezoidal block, and one end, away from the output end of the electric push rod, of the trapezoidal block is connected with a clamping block matched with the clamping groove.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a first turbo fan and second turbo fan, with cold wind leading-in the heat dissipation intracavity portion that upper die and lower mould inside set up, cold wind leading-in to the heat dissipation intracavity portion to both sides diffusion, the thermovent that sets up on cooperation upper die and the lower mould realizes the purpose to the rapid cooling of injection mold, avoid taking out the back injection mold and produce the shrink easily under the exogenic action, lead to the appearance of injection mold to change;

the utility model discloses accomplish injection mold cooling back, through starting electric putter, drive trapezoidal piece, trapezoidal piece drives the fixture block and stretches into to the draw-in groove inside, through bevel and the trapezoidal piece contact that sets up on the draw-in groove for it is not hard up between last mould and the lower mould, and cooperation cylinder output drives the push pedal rebound, thereby realizes going up mould and lower mould separation, is convenient for take out the injection mold after the cooling.

The present invention will be explained in detail with reference to the drawings and specific embodiments.

Drawings

The invention and its features, aspects and advantages will become more apparent from a reading of the following detailed description of non-limiting embodiments with reference to the attached drawings. Like reference symbols in the various drawings indicate like elements. The drawings are not intended to be drawn to scale, emphasis instead being placed upon illustrating the principles of the invention.

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

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

fig. 3 is an enlarged schematic structural view of the area a in fig. 2 according to the present invention;

fig. 4 is a front view structural schematic diagram of the electric push rod of the present invention.

In the figure: 1. a base; 2. a mold; 3. a cylinder; 4. an electric push rod; 5. a first turbo fan; 6. a second turbo fan; 11. a first side plate; 12. a second side plate; 13. a top plate; 21. an upper die; 22. a lower die; 23. a mold cavity; 31. pushing a plate; 32. a connecting shaft; 41. a trapezoidal block; 42. a clamping block; 51. an air guide pipe; 211. injection molding a pipeline; 212. a heat dissipation cavity; 213. a heat dissipation port; 214. a card slot; 215. a bevel opening; 221. and a wind guide block.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, and on the contrary, these embodiments are provided so as to make the disclosure more thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Example 1:

the embodiment of the utility model provides a disclose low shrink injection mold of processing plastic products, please heavily refer to fig. 1-4, including base 1, base 1 upper end is connected with mould 2, mould 2 includes upper die 21 and lower mould 22, it forms die cavity 23 to contact between upper die 21 and the lower mould 22, upper die 21 and lower mould 22 inner wall all are equipped with heat dissipation chamber 212, and upper die 21 and lower mould 22 left and right sides outer wall all are equipped with the thermovent 213 with heat dissipation chamber 212 intercommunication, the upper end of upper die 21 is connected with injection molding pipeline 211, injection molding pipeline 211 runs through upper die 21 and stretches into to the inside of die cavity 23; the upper end of the base 1 is symmetrically connected with a first side plate 11 and a second side plate 12, the first side plate 11 and the second side plate 12 are positioned at the left side and the right side of the die 2, the outer walls of the first side plate 11 and the second side plate 12 are respectively connected with a first turbo fan 5 and a second turbo fan 6, the output ports of the first turbo fan 5 and the second turbo fan 6 are connected with an air guide pipe 51, the air guide pipe 51 respectively penetrates through the outer walls of an upper die 21 and a lower die 22 and extends into a heat dissipation cavity 212, the upper ends of the first side plate 11 and the second side plate 12 are connected with a top plate 13, the upper end of the top plate 13 is connected with an air cylinder 3, the output end of the air cylinder 3 penetrates through the top plate 13 and is connected with a push plate 31, the lower end of the push plate 31 is connected with a plurality of connecting shafts 32, and the lower ends of the connecting shafts 32 are connected with the upper die 21; the utility model discloses a first turbofan 5 and second turbofan 6, with cold wind leading-in last mould 21 and the inside heat dissipation chamber 212 that sets up of lower mould 22 inside, cold wind is leading-in to the inside diffusion to both sides in heat dissipation chamber 212, and mould 21 and the thermovent 213 that sets up on the lower mould 22 in the cooperation realize the purpose to injection mold rapid cooling, avoid taking out back injection mold and produce the shrink easily under the exogenic action, lead to injection mold's appearance to change.

Please refer to fig. 1-4 again, the heat dissipation cavities 212 disposed inside the upper die 21 and the lower die 22 are both connected with an air guide block 221, the air guide block 221 corresponds to a pipe opening of the air guide pipe 51, a plurality of clamping grooves 214 are symmetrically disposed on one end surface of the upper die 21 contacting the lower die 22, an inclined opening 215 is disposed on the outer side of each clamping groove 214, the outer walls of one sides of the first side plate 11 and the second side plate 12 corresponding to each other are both connected with an electric push rod 4, the output end of the electric push rod 4 is connected with a trapezoidal block 41, and one end of the trapezoidal block 41 away from the output end of the electric push rod 4 is connected with a clamping block 42 engaged with the clamping groove 214; accomplish the injection mold cooling back, through starting electric putter 4, drive trapezoidal piece 41, trapezoidal piece 41 drives fixture block 42 and stretches into to draw-in groove 214 inside, through the bevel 215 and the 41 contact of trapezoidal piece that set up on the draw-in groove 214 for it is not hard up between mould 21 and the lower mould 22, and cooperate 3 outputs of cylinder to drive push pedal 31 rebound, thereby mould 21 and lower mould 22 separation in the realization, be convenient for take out the injection mold after the cooling.

The utility model discloses a processing plastic products's low shrink injection mold's implementation principle does:

during the use, start cylinder 3, cylinder 3 drives push plate 31 downstream, push plate 31 drives last mould 21 and removes and lower mould 22 precision contact, then pipeline 211 of moulding plastics through last mould 21 upper end connection, mould plastics, accomplish the back of moulding plastics, start first turbo fan 5 and second turbo fan 6, first turbo fan 5 and second turbo fan 6 output are through leading-in to last mould 21 and the inside heat dissipation chamber 212 that sets up of lower mould 22 with cold wind through guide duct 51 inside, and leading-in cold wind and the contact of guide block 221, make cold wind at the inside diffusion to both sides of heat dissipation chamber 212, and discharge through thermovent 213, realize the purpose to injection mold rapid cooling.

The above description is taken as an example to describe the present invention with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, as long as the present invention is adopted, the method concept and the technical solution of the present invention are performed to perform this kind of insubstantial improvement, or the concept and the technical solution of the present invention are directly applied to other occasions without improvement, all within the protection scope of the present invention.

Claims

1. The utility model provides a low shrink injection mold of processing plastic products which characterized in that: the heat dissipation device comprises a base (1), wherein a mold (2) is connected to the upper end of the base (1), the mold (2) comprises an upper mold (21) and a lower mold (22), a mold cavity (23) is formed between the upper mold (21) and the lower mold (22) in a contact manner, heat dissipation cavities (212) are formed in the inner walls of the upper mold (21) and the lower mold (22), heat dissipation ports (213) communicated with the heat dissipation cavities (212) are formed in the outer walls of the left side and the right side of the upper mold (21) and the outer walls of the right side and the left side of the lower mold (22), an injection molding pipeline (211) is connected to the upper end of the upper mold (21), and the injection molding pipeline (211) penetrates through the upper mold (21) and extends into the mold cavity (23); the die is characterized in that a first side plate (11) and a second side plate (12) are symmetrically connected to the upper end of the base (1), the first side plate (11) and the second side plate (12) are located on the left side and the right side of the die (2), the outer walls of the first side plate (11) and the second side plate (12) are respectively connected with a first turbofan (5) and a second turbofan (6), the output ports of the first turbofan (5) and the second turbofan (6) are connected with an air guide pipe (51), the air guide pipe (51) penetrates through the outer walls of the upper die (21) and the lower die (22) respectively and stretches into the interior of a heat dissipation cavity (212), a top plate (13) is connected to the upper ends of the first side plate (11) and the second side plate (12), an air cylinder (3) is connected to the upper end of the top plate (13), the output end of the air cylinder (3) penetrates through the top plate (13) and is connected with a push plate (31), the lower end of the push plate (31) is connected with a plurality of connecting shafts (32), and the lower end of the connecting shaft (32) is connected with the upper die (21).

2. A low shrinkage injection mold for processing plastic products as claimed in claim 1, wherein: the heat dissipation cavities (212) arranged in the upper die (21) and the lower die (22) are connected with air guide blocks (221), and the air guide blocks (221) correspond to pipe openings of the air guide pipes (51).

3. A low shrinkage injection mold for processing plastic products as claimed in claim 1, wherein: a plurality of clamping grooves (214) are symmetrically formed in one end face, in contact with the lower die (22), of the upper die (21).

4. A low shrinkage injection mold for processing plastic products as claimed in claim 3, wherein: the outer side of the clamping groove (214) is provided with an inclined opening (215).

5. A low shrinkage injection mold for processing plastic products as claimed in claim 1, wherein: the outer wall of one side, corresponding to the first side plate (11) and the second side plate (12), is connected with an electric push rod (4), the output end of the electric push rod (4) is connected with a trapezoidal block (41), and one end, away from the output end of the electric push rod (4), of the trapezoidal block (41) is connected with a clamping block (42) matched with the clamping groove (214).