Rapid cooling structure for mold

By increasing the cooling chamber area and setting heat-conducting fins on the outer wall of the mold, combined with coolant circulation, the problem of slow mold cooling speed was solved, achieving rapid cooling and efficient molding.

CN223573755UActive Publication Date: 2025-11-21FUZHOU SHUANGHUA PRECISION MASCH CO LTD
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Patent Information

Application Number
CN202423254384.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-28
Publication Date
2025-11-21
Estimated Expiration
2034-12-28

AI Technical Summary

Technical Problem

Existing injection molds have slow cooling speeds, which affects product molding efficiency. This is mainly due to the small contact area between the coolant and the mold, resulting in slow heat transfer.

Method used

By increasing the area of ​​the cooling chamber, the contact area between the coolant and the mold groove is increased, and heat-conducting fins are installed on the outer wall of the mold groove. The coolant circulation is used to quickly transfer heat, and the mold closing accuracy is improved by combining guide rods and guide seats.

Benefits of technology

It significantly improves the cooling speed of the mold, increases product molding efficiency, ensures cooling effect, and facilitates cleaning of the cooling chamber.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of molds, and particularly relates to a rapid mold cooling structure which comprises a lower mold, an upper mold and mold grooves, the upper mold is movably arranged above the lower mold, the mold grooves are formed in inner cavities of the lower mold and the upper mold, cooling cavities are formed in the cavity walls of the lower mold and the upper mold, the cooling cavities wrap the outer walls of the mold grooves, and the mold grooves are formed in the lower mold and the upper mold. The bottom of the side wall of the lower mold is connected with a first liquid discharge pipe in a communicating mode, the top of the side wall of the lower mold is connected with a first liquid inlet pipe in a communicating mode, the bottom of the side wall of the upper mold is connected with a second liquid inlet pipe in a communicating mode, and control valves are installed at the ends of the first liquid discharge pipe, the first liquid inlet pipe, the second liquid discharge pipe and the second liquid inlet pipe. The area of the cooling cavity is enlarged, so that the contact area of cooling liquid and the mold groove is increased, meanwhile, the outer wall of the mold groove rapidly transmits heat into the cooling liquid through the heat conduction fins, and the cooling speed of the mold can be increased by continuously circulating the cooling liquid.
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Description

TECHNICAL FIELD

[0001] The utility model relates to mould technical field, concretely is a mould quick cooling structure. BACKGROUND

[0002] Mould is the various moulds and tools of industrial production to injection moulding, blow moulding, extrusion, die casting or forging pressure forming, smelting, stamping etc. method obtains required product. In short, mould is the tool for making formed article, and this tool is composed of various parts, and different moulds are composed of different parts. It realizes the machining of article shape mainly through the change of the physical state of the formed material.

[0003] The existing injection mould still has higher temperature on the product after injection moulding, needs to carry out cooling to the product, so that the product is quickly formed, the heat conducting copper pipe is laid in the mould, the cooling liquid flows in the copper pipe and takes away the heat, and the contact area of the copper pipe and the mould is small, so that the cooling speed of the mould is slow, thereby the forming efficiency of the product is affected, in order to solve the above problems, a mould quick cooling structure is provided in the application. SUMMARY

[0004] (I) Utility model purpose

[0005] In order to solve the technical problems in the background art, the utility model provides a mould quick cooling structure, which enlarges the area of the cooling cavity to increase the contact area of the cooling liquid and the mould groove, and the heat is quickly transferred to the cooling liquid through the heat conducting fins on the outer wall of the mould groove. The cooling speed of the mould can be improved by continuously circulating the cooling liquid to solve the problems in the background art.

[0006] (II) Technical scheme

[0007] In order to solve the above technical problems, the utility model provides a mould quick cooling structure, which comprises a lower mould, an upper mould and a mould groove, the upper mould is movably arranged above the lower mould, the mould groove is arranged in the inner cavity of the lower mould and the upper mould, the cooling cavity is arranged in the cavity wall of the lower mould and the upper mould, and the cooling cavity is covered on the outer wall of the mould groove.

[0008] The lower mould side wall bottom is connected with a first liquid discharge pipe in a lead-through mode, and the lower mould side wall top is connected with a first liquid inlet pipe in a lead-through mode.

[0009] The upper mould side wall top is connected with a second liquid discharge pipe in a lead-through mode, and the upper mould side wall bottom is connected with a second liquid inlet pipe in a lead-through mode.

[0010] The end part of the first liquid discharge pipe, the first liquid inlet pipe, the second liquid discharge pipe and the second liquid inlet pipe is provided with a control valve.

[0011] Preferably, the cooling cavity top is open, and the upper cover plate is movably arranged on the surface of the cooling cavity top.

[0012] Preferably, a hollow hole is arranged in the center of the upper surface of the upper cover plate, and the hollow hole is inserted into the top of the mold groove.

[0013] Preferably, a rubber ring is arranged on the inner wall of the hollow hole, and the inner wall of the rubber ring abuts against the surface of the outer wall of the mold groove.

[0014] Preferably, a sealing gasket is arranged on the upper mold and the lower mold, and the lower surface of the upper cover plate abuts against the sealing gasket.

[0015] Preferably, a heat-conducting fin is fixedly connected to the surface of the outer wall of the mold groove, the heat-conducting fins are equidistantly arranged on the mold groove, a support column is welded in the center of the inner cavity of the cooling cavity, and the end of the support column is connected to the heat-conducting fin.

[0016] Preferably, a guide rod is welded to the surface of the upper mold, a guide seat is welded to the surface of the lower mold, and the guide rod is inserted into the guide seat.

[0017] The above technical scheme of the utility model has the following beneficial technical effects:

[0018] 1. The utility model discloses a cooling cavity, which is filled with cooling liquid through a first liquid inlet pipe and a second liquid inlet pipe, and the cooling liquid is discharged through a first liquid outlet pipe and a second liquid outlet pipe after being filled in the cooling cavity, so that the cooling liquid is wrapped on the surface of the mold groove, and the heat of the mold groove is quickly transferred to the cooling liquid through the heat-conducting fin, thereby improving the cooling speed of the mold.

[0019] 2. The utility model discloses that the upper cover plate is fixed on the upper mold and the lower mold through a countersunk head bolt, and the sealing gasket and the rubber ring can seal the connection between the upper cover plate and the upper mold and the lower mold, so that the cooling cavity can be easily cleaned after the upper cover plate is disassembled, thereby ensuring the cooling effect of the mold. ACCURACY

[0020] Figure 1 It is a whole structure schematic view of the utility model discloses a mold quick cooling structure.

[0021] Figure 2 It is a sectional structure schematic view of the utility model discloses a mold quick cooling structure.

[0022] Figure 3 It is a cover plate mounting structure schematic view of the utility model discloses a mold quick cooling structure.

[0023] Figure 4 It is a heat dissipation fin structure schematic view of the utility model discloses a mold quick cooling structure.

[0024] Reference signs:

[0025] 1, lower mold; 2, upper mold; 3, mold groove; 4, guide rod; 5, guide seat; 6, cooling cavity; 7, No. 1 drain pipe; 8, No. 1 liquid inlet pipe; 9, No. 2 drain pipe; 10, No. 2 liquid inlet pipe; 11, upper cover plate; 12, gasket; 13, rubber ring; 14, heat conduction fin; 15, support column. DETAILED DESCRIPTION

[0026] To make the purpose, technical scheme and advantages of the utility model more clear and intelligible, the utility model is further explained in detail below in combination with specific implementation manners and with reference to the drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0027] As Figures 1-4 shown, the utility model provides a mold rapid cooling structure, including lower mold 1, upper mold 2 and mold groove 3, upper mold 2 is movably arranged above lower mold 1, the mold groove 3 is all set up in the inner chamber of lower mold 1, upper mold 2, the cavity wall of lower mold 1 and upper mold 2 is all set up with cooling cavity 6, the cooling cavity 6 is covered in the outer wall of mold groove 3;

[0028] The lower mold 1 side wall bottom is connected with No. 1 drain pipe 7, and the lower mold 1 side wall top is connected with No. 1 liquid inlet pipe 8.

[0029] The upper mold 2 side wall top is connected with No. 2 drain pipe 9, and the upper mold 2 side wall bottom is connected with No. 2 liquid inlet pipe 10.

[0030] The end of No. 1 drain pipe 7, No. 1 liquid inlet pipe 8, No. 2 drain pipe 9 and No. 2 liquid inlet pipe 10 is all installed with control valve.

[0031] It should be noted that the upper mold 2 can be lifted on the lower mold 1, the mold groove 3 constitutes a closed structure after the lower mold 1 and the upper mold 2 are closed, the guide rod 4 is inserted with the guide seat 5, the guide rod 4 and the guide seat 5 can guide the lifting of the upper mold 2 to improve the closing precision of the lower mold 1 and the upper mold 2, the cooling cavity 6 is injected with cooling liquid through No. 1 liquid inlet pipe 8 and No. 2 liquid inlet pipe 10 respectively, the cooling liquid in the cooling cavity 6 is injected full and is discharged through No. 1 drain pipe 7 and No. 2 drain pipe 9 respectively, the cooling liquid is wrapped on the surface of the mold groove 3, and the heat is quickly transferred to the cooling liquid through the heat conduction fin 14 on the outer wall of the mold groove 3, and the cooling speed of the mold can be improved by continuously circulating the cooling liquid.

[0032] In this embodiment, asFigure 3 As shown in the drawings, the cooling cavity 6 top is open structure, the cooling cavity 6 top surface is movably mounted with upper cover plate 11, the upper cover plate 11 upper surface center is provided with an empty hole, the empty hole is inserted in the top of the mold groove 3, the empty hole inner wall is sleeved with rubber ring 13, the rubber ring 13 inner wall is abutted on the mold groove 3 outer wall surface, the lower die 1 and the upper die 2 are provided with sealing gasket 12, the upper cover plate 11 lower surface is abutted on the sealing gasket 12.

[0033] It should be noted that the upper cover plate 11 is fixed on the upper die 1 and the lower die 2 by countersunk head bolt, the sealing gasket 12 and the rubber ring 13 can seal the connection between the upper cover plate 11 and the upper die 1 and the lower die 2, and the upper cover plate 11 can be easily removed for cleaning the cooling cavity 6 to ensure the cooling effect of the mold.

[0034] In this embodiment, as shown in the drawings, Figure 2 The mold groove 3 outer wall surface is fixedly connected with heat conduction fin 14, the heat conduction fin 14 is equidistantly arranged on the mold groove 3, the cooling cavity 6 inner cavity center is welded with support column 15, and the support column 15 end is connected with heat conduction fin 14.

[0035] It should be noted that the mold groove 3 outer wall is connected with heat conduction fin 14 to quickly transfer heat to the cooling liquid, and the support column 15 can fix the mold groove 3.

[0036] In this embodiment, as shown in the drawings, Figure 1 The upper die 2 two side surfaces are welded with guide rod 4, the lower die 1 two side surfaces are welded with guide seat 5, and the guide rod 4 is inserted with the guide seat 5.

[0037] It should be noted that the guide rod 4 and the guide seat 5 can guide the lifting of the upper die 2 to improve the clamping precision of the lower die 1 and the upper die 2.

[0038] The utility model discloses a working principle and use flow: upper die 2 can be lifted and moved above lower die 1, and the closed structure is formed after lower die 1 and upper die 2 close mould, and guiding rod 4 is inserted with guide seat 5, and the matching of guiding rod 4 and guide seat 5 can guide the lift of upper die 2, to improve the closing precision of lower die 1 and upper die 2, and respectively through No. 1 liquid inlet pipe 8 and No. 2 liquid inlet pipe 10, cooling liquid is injected into cooling cavity 6, and the cooling liquid in cooling cavity 6 is filled and is discharged through No. 1 liquid outlet pipe 7 and No. 2 liquid outlet pipe 9 respectively, and the cooling liquid is wrapped in the surface of mould groove 3, and the outer wall of mould groove 3 passes through heat conduction fin 14 and rapidly transfers heat to cooling liquid, and through the circulation of cooling liquid, the cooling speed of mould can be improved, and upper cover plate 11 is fixed on upper die 1 and lower die 2 through countersunk head bolt respectively, and sealing gasket 12 and rubber ring 13 can seal the junction of upper cover plate 11, upper die 1 and lower die 2, and after the dismounting of upper cover plate 11, cooling cavity 6 can be cleaned conveniently, to guarantee the cooling effect of mould.

[0039] It should be understood that the above specific embodiments of the utility model are only used for example explanation or interpretation of the principle of the utility model, and do not constitute the limitation of the utility model. Therefore, any modification equivalent replacement, improvement etc. made without deviating from the spirit and scope of the utility model should be included in the protection scope of the utility model. In addition, the utility model attached claims are intended to cover all changes and modifications falling into the scope and boundary of the attached claims or the equivalent form of such scope and boundary.

Claims

1. A rapid cooling structure for a mold, comprising a lower mold (1), an upper mold (2), and mold grooves (3), wherein the upper mold (2) is movably disposed above the lower mold (1), and the mold grooves (3) are all formed within the cavities of the lower mold (1) and the upper mold (2), characterized in that, Cooling chambers (6) are provided in the cavity walls of both the lower mold (1) and the upper mold (2), and the cooling chambers (6) cover the outer wall of the mold groove (3); The bottom of the side wall of the lower mold (1) is connected to a drain pipe (7), and the top of the side wall of the lower mold (1) is connected to an inlet pipe (8). The upper mold (2) has a No. 2 drain pipe (9) connected to the top of its side wall, and a No. 2 inlet pipe (10) connected to the bottom of its side wall; Control valves are installed at the ends of the No. 1 drain pipe (7), the No. 1 inlet pipe (8), the No. 2 drain pipe (9), and the No. 2 inlet pipe (10).

2. The mold rapid cooling structure according to claim 1, characterized in that, The top of each cooling chamber (6) is an open structure, and an upper cover plate (11) is movably installed on the top surface of each cooling chamber (6).

3. The mold rapid cooling structure according to claim 2, characterized in that, All the upper cover plates (11) have through holes at the center of their upper surfaces, and these holes are inserted into the top of the mold groove (3).

4. The mold rapid cooling structure according to claim 3, characterized in that, A rubber ring (13) is fitted on the inner wall of the vent hole, and the inner wall of the rubber ring (13) abuts against the outer wall surface of the mold groove (3).

5. The rapid cooling structure for a mold according to claim 4, characterized in that, Both the lower mold (1) and the upper mold (2) are provided with sealing gaskets (12), and the lower surface of the upper cover plate (11) presses against the sealing gaskets (12).

6. The rapid cooling structure for a mold according to claim 5, characterized in that, The outer wall surface of the mold groove (3) is fixedly connected with heat-conducting fins (14), and the heat-conducting fins (14) are equidistantly arranged in a ring on the mold groove (3). The center of the inner cavity of the cooling cavity (6) is welded with a support column (15), and the end of the support column (15) is attached to the heat-conducting fins (14).

7. The rapid cooling structure for a mold according to claim 6, characterized in that, Guide rods (4) are welded to both sides of the upper mold (2), and guide seats (5) are welded to both sides of the lower mold (1). The guide rods (4) and guide seats (5) are inserted into each other.