Die capable of preventing product from being injured by template

By introducing a limiting hook structure into the mold, the lower mold plate is prevented from rising during mold opening, thus solving the problem of the lower mold plate damaging the product in traditional molds and ensuring product quality and safety.

CN224240226UActive Publication Date: 2026-05-15QUALITY SYNTHETIC RUBBER INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QUALITY SYNTHETIC RUBBER INC
Filing Date
2025-05-22
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In traditional hot press molding dies, the lower mold plate may rise along with the upper mold plate when the mold is opened, which may cause the product to be damaged and affect product quality and safety.

Method used

A mold structure including an upper mold mechanism, a lower mold mechanism, and a limiting hook is designed. When the mold is closed, the upper mold guide post drives the limiting hook to flip and limit the lower mold plate. When the mold is opened, the limiting hook prevents the lower mold plate from rising. The flipping of the limiting hook prevents the lower mold plate from falling off the product.

Benefits of technology

It effectively prevents the lower mold plate from crushing the product when the mold is opened, ensuring product quality and production safety, and extending the mold life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a mould for preventing product from being injured by template, including upper mould mechanism, lower mould mechanism, limit hook, the upper mould mechanism includes upper mould base, upper template and upper mould guide pillar, upper template is fixed connection in the bottom of upper mould base, there are a plurality of upper mould guide pillar, and the upper mould guide pillar respectively passes through the bottom of upper template lengthways, and the limit hook is fixed in the upper mould base. The lower die mechanism comprises a lower die base, a lower die core and a lower die plate, the lower die core is fixedly connected to the top of the lower die base, one end of the lower die plate is hinged to the outer side of one end of the lower die base and located on the top of the lower die core, and the lower die plate, the lower die core and the lower die base are each provided with a plurality of guide column holes corresponding to the upper die guide columns. The multiple limiting hooks are hinged to the two outer sides of the other end of the lower die base respectively, and the edge of the end of the rotating end of each limiting hook extends out of the inner wall of the guide column hole of the lower die base. According to the utility model, the limiting hook is arranged, so that the lower template can be effectively prevented from rising along with the upper template to smash a product during mold opening, and the quality of the product, the service life of the mold and the production safety are guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of mold technology, and more specifically, to a mold for preventing products from being damaged by a template. Background Technology

[0002] Thermoforming molds mainly consist of an upper mold plate and a lower mold plate. An external upper mold drive device, such as a press, applies a vertical clamping force, pressing preheated thermosetting material into the mold cavity, where it solidifies under heat and pressure. In the opening process of traditional molding molds, the lower mold plate may rise along with the upper mold and then fall, damaging the product. This is usually caused by negative pressure inside the cavity, excessive friction, or inertia, which can lead to the lower mold plate not separating from the upper mold plate in time and rising with it. When the lower mold plate falls, the impact force is large, damaging the product and causing flash, deformation, indentations, or breakage, seriously affecting product quality. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned defects in the prior art and provide a mold that can effectively prevent the lower mold from falling on the product when it rises together with the upper mold during mold opening, thus ensuring product quality, mold life and production safety and preventing the product from being damaged by the mold.

[0004] To achieve the above objectives, this utility model provides a mold for preventing product damage from a template, comprising an upper mold mechanism, a lower mold mechanism, and a limiting hook. The upper mold mechanism is located directly above the lower mold mechanism. The upper mold mechanism includes an upper mold base, an upper template, and upper mold guide pillars. The upper template is fixedly connected to the bottom of the upper mold base. Several upper mold guide pillars are provided and extend longitudinally through the bottom of the upper template. The lower mold mechanism includes a lower mold base, a lower mold core, and a lower template. The lower mold core is fixedly connected to the top of the lower mold base. One end of the lower template is hinged to the outside of one end of the lower mold base and located on top of the lower mold core. The lower mold plate, lower mold core, and lower mold base are each provided with several guide post holes that correspond to the upper mold guide posts and allow the upper mold guide posts to be inserted. The lower mold core has a cavity in the middle for product forming. Several limiting hooks are provided and are respectively hinged to the two outer sides of the other end of the lower mold base. The rotating end edge of each limiting hook extends out of the inner wall of the guide post hole of the lower mold base. When the mold is closed, the upper mold guide post can be inserted downward into the guide post hole and drive each limiting hook to rotate inward, so that the hook part of each limiting hook rotates to above the edge of the lower mold plate, thereby achieving the limiting of the lower mold plate.

[0005] Preferably, the limiting hooks are all L-shaped, with the hook portion of each limiting hook bent downwards and located at the end of its vertical section. The hinge holes of the rotating ends of the limiting hooks are all opened on their horizontal sections. The rotating ends of the limiting hooks extend outwards and are inclined. The connection between the rotating ends of the limiting hooks and the vertical sections is an arc-shaped transition.

[0006] Preferably, it also includes two connecting bolts. Two screw holes are opened on one end face of the lower mold base away from the lower template. The two outer sides of the lower mold base are respectively provided with receiving grooves for the rotating end of the limiting hook to be movably placed. Each receiving groove is connected to the guide post hole of its corresponding lower mold base. The rotating end of the limiting hook is inserted into the receiving groove and is threaded to the screw hole after passing through its hinge hole with the connecting bolt to achieve a rotating connection with the lower mold base.

[0007] Preferably, guide sleeves are provided inside the guide post holes of both the lower template and the lower mold core.

[0008] Preferably, a handle is provided on the side of the lower template away from its hinge end, and a forming groove is provided through the middle of the lower template.

[0009] Preferably, the system also includes a base and a mold frame. The base is fixedly installed at the bottom of the lower mold mechanism, and the mold frame includes a supporting top plate and columns. The supporting top plate is fixedly installed above the upper mold mechanism by four columns, and the supporting top plate has a through hole for the output part of the external upper mold driving device to pass through.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This utility model has a novel structure and reasonable design. When the mold is closed, the upper mold guide post is inserted downward into the guide post hole and drives each limit hook to flip inward, so that the hook part of each limit hook flips to the upper edge of the lower mold plate, thereby limiting the lower mold plate. This can effectively prevent the lower mold plate from rising with the upper mold plate and falling down on the product when the mold is opened. It solves the risk of the mold plate moving when the traditional mold is opened, and can effectively ensure product quality, mold life and production safety. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1This is a schematic diagram of the structure of the mold (open mold state) for preventing products from being damaged by the template according to an embodiment of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of a mold (closed state) for preventing products from being damaged by the template, provided in an embodiment of this utility model.

[0015] Figure 3 This is a partial structural diagram (open mold state) of the mold for preventing products from being damaged by the template provided in this embodiment of the utility model;

[0016] Figure 4 This is a schematic diagram of the explosion of the lower mold mechanism of the mold for preventing products from being damaged by the template, provided in an embodiment of this utility model;

[0017] Figure 5 This is a partial structural cross-sectional view of the mold provided in this embodiment of the utility model to prevent products from being damaged by the template (in the mold-open state);

[0018] Figure 6 This is a partial structural cross-sectional view (closed state) of the mold for preventing products from being damaged by the template provided in this embodiment of the utility model;

[0019] Figure 7 A partial structural cross-section of the mold provided in this embodiment of the utility model for preventing products from being damaged by templates. Figure 2 (Mold open state) Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Please refer to Figure 1 The present invention provides a mold for preventing products from being damaged by a template, including an upper mold mechanism 1, a lower mold mechanism 2, a limiting hook 3 and other components. The upper mold mechanism 1 includes an upper mold base 11, an upper template 12, and an upper mold guide post 13. The lower mold mechanism 2 includes a lower mold base 21, a lower mold core 22, and a lower template 23. The components of this embodiment will be described in detail below with reference to the accompanying drawings.

[0022] like Figures 1 to 3As shown, the upper mold mechanism 1 can be located directly above the lower mold mechanism 2. The upper template 12 is fixedly connected to the bottom of the upper mold base 11. Several upper mold guide pillars 13 are provided and extend longitudinally through the bottom of the upper template 12. The lower mold core 22 is fixedly connected to the top of the lower mold base 21. One end of the lower template 23 is hinged to the outer side of one end of the lower mold base 21 and located on the top of the lower mold core 22. Several guide pillar holes 20 corresponding to the upper mold guide pillars 13 and capable of being inserted into the lower template 23, the lower mold core 22 and the lower mold base 21 are provided. A cavity 221 for product forming is provided in the middle of the lower mold core 22. Several limiting hooks 3 are provided and are respectively hinged to the two outer sides of the other end of the lower mold base 21. The rotating end edge of each limiting hook 3 extends out of the inner wall of the guide pillar hole 20 of the lower mold base 21.

[0023] In specific implementation, such as Figures 5 to 7 As shown, the limiting hook 3 is initially in an outward-facing state (e.g., Figure 5 As shown), when the mold is closed, the upper mold guide post 13 can be inserted downward into the guide post hole 20 and drive each limiting hook 3 to flip inward, so that the hook part of each limiting hook 3 flips to above the edge of the lower mold plate 23, thereby limiting the lower mold plate 23; when the mold is opened, the upper mold guide post 13 disengages from the guide post hole 20, and the hook part of each limiting hook 3 is still above the edge of the lower mold plate 23 (as shown). Figure 6 As shown), this prevents the lower mold plate 23 from rising along with the upper mold plate 12 during mold opening (as shown). Figure 7 (As shown), then manually flip the hook of each limit hook 3 outward to release the limit on the lower template 23.

[0024] In this embodiment, the limiting hooks 3 can all be arranged in an L-shaped structure. The hook part of the limiting hook 3 is bent downward and located at the end of its vertical section. The hinge hole 31 of the rotating end of the limiting hook 3 is opened on its horizontal section. The end of the rotating end of the limiting hook 3 extends outward and is inclined. The connection between the end of the rotating end of the limiting hook 3 and the vertical section is arranged in an arc transition.

[0025] Preferably, it may also include two connecting bolts 4. Two screw holes 210 are opened on one end face of the lower mold base 21 away from the hinge end of the lower mold plate 23. The two outer sides of the lower mold base 21 are respectively provided with receiving grooves 214 for the rotating end of the limit hook 3 to be movably placed. Each receiving groove 214 is connected to the guide post hole 20 of its corresponding lower mold base 21. In implementation, the rotating end of the limit hook 3 is inserted into the receiving groove 214 and threadedly connected to the screw hole 210 after the connecting bolt 4 passes through its hinge hole 31 to achieve rotational connection with the lower mold base 21.

[0026] Specifically, the guide post holes 20 of the lower template 23 and the lower mold core 22 can both be provided with guide sleeves 14 that cooperate with and guide the upper mold guide post 13.

[0027] like Figure 3 As shown, a handle 232 is provided on the side of the lower template 23 away from its hinge end, and a forming groove 231 is provided through the middle of the lower template 23. The hinge design of the lower template 23 and the handle 232 enable the lower template 23 to be flipped open for easy removal of parts.

[0028] Furthermore, the lower mold base 21 may include a lower mold heating plate 211 and a lower mold fixing plate 212. The lower mold heating plate 211 is fixedly disposed on the top of the lower mold fixing plate 212, and a plurality of first heating rods 213 are inserted inside the lower mold heating plate 211.

[0029] The upper mold plate 12 can fix the upper mold guide post 13 and contact the lower mold plate 23 to form a mold closing surface. The forming groove 231 of the lower mold plate 23 cooperates with the cavity 221 of the lower mold core 22 to form a product forming cavity. The upper mold guide post 13 can be inserted into the lower mold guide post hole 20 when the mold is closed to provide a guiding function and ensure that the upper and lower molds are aligned.

[0030] Preferably, it may also include a base 5 and a mold frame 6. The base 5 is fixedly installed at the bottom of the lower mold mechanism 2. The mold frame 6 includes a supporting top plate 61 and columns 62. The supporting top plate 61 is fixedly installed above the upper mold mechanism 1 by four columns 62. The supporting top plate 61 has a through hole 610 for the output part of the external upper mold drive device to pass through.

[0031] Furthermore, the upper mold base 11 may include an upper panel 111 and an upper punch lifting plate 112. The upper panel 111 is fixedly connected to the top of the upper punch lifting plate 112. The top of the upper punch lifting plate 112 is fixedly connected to an upper punch connecting seat 113 that passes through the upper panel 111 and corresponds to the through hole 610 of the supporting top plate 61. Several second heating rods 114 are inserted inside the upper punch lifting plate 112.

[0032] The external upper mold drive device can be installed on the support top plate 61 and its output shaft passes through the through hole 610. The upper punch lifting plate 112 is connected to the external upper mold drive device through the upper punch connecting seat 113, which can transmit the opening and closing power of the mold.

[0033] In summary, this utility model, by inserting the upper mold guide post downward into the guide post hole during mold closing and causing each limiting hook to flip inward, so that the hook part of each limiting hook flips to above the edge of the lower mold plate, thereby limiting the lower mold plate. This effectively prevents the lower mold plate from rising with the upper mold plate and falling down on the product during mold opening, solving the risk of the mold plate moving along with the product during mold opening in traditional molds, and effectively ensuring product quality, mold life and production safety.

[0034] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A mold for preventing products from being damaged by a template, characterized in that: The system includes an upper mold mechanism, a lower mold mechanism, and a limiting hook. The upper mold mechanism is located directly above the lower mold mechanism. The upper mold mechanism includes an upper mold base, an upper template, and upper mold guide pillars. The upper template is fixedly connected to the bottom of the upper mold base. Several upper mold guide pillars are provided and extend longitudinally through the bottom of the upper template. The lower mold mechanism includes a lower mold base, a lower mold core, and a lower template. The lower mold core is fixedly connected to the top of the lower mold base. One end of the lower template is hinged to the outside of one end of the lower mold base and located on top of the lower mold core. The lower template, lower mold core, and lower mold base... Each mold core has several guide pin holes corresponding to the upper mold guide pins and allowing the upper mold guide pins to be inserted. The lower mold core has a cavity in the middle for product forming. Several limiting hooks are provided and are respectively hinged to the two outer sides of the other end of the lower mold base. The rotating end edge of each limiting hook extends out of the inner wall of the guide pin hole of the lower mold base. When the mold is closed, the upper mold guide pin can be inserted downward into the guide pin hole and drive each limiting hook to rotate inward, so that the hook part of each limiting hook rotates to above the edge of the lower mold plate, thereby achieving the limiting of the lower mold plate.

2. The mold for preventing products from being damaged by templates according to claim 1, characterized in that: The limiting hooks are all L-shaped, with the hook portion of each limiting hook bent downwards and located at the end of its vertical section. The hinge holes of the rotating ends of the limiting hooks are all opened on their horizontal sections. The rotating ends of the limiting hooks extend outwards and are inclined. The connection between the rotating ends of the limiting hooks and the vertical sections is an arc-shaped transition.

3. The mold for preventing products from being damaged by templates according to claim 2, characterized in that: It also includes two connecting bolts. Two screw holes are opened on one end face of the lower mold base away from the lower template. The two outer sides of the lower mold base are respectively provided with receiving grooves for the rotating end of the limiting hook to be movably placed. Each receiving groove is connected to the guide post hole of its corresponding lower mold base. The rotating end of the limiting hook is inserted into the receiving groove and is threaded to the screw hole after passing through its hinge hole with the connecting bolt to achieve a rotating connection with the lower mold base.

4. The mold for preventing products from being damaged by templates according to claim 1, characterized in that: Guide sleeves are provided inside the guide post holes of both the lower template and the lower mold core.

5. A mold for preventing products from being damaged by a template according to claim 1, characterized in that: A handle is provided on the side of the lower template away from its hinge end, and a forming groove is provided through the middle of the lower template.

6. The mold for preventing products from being damaged by templates according to claim 1, characterized in that: It also includes a base and a mold frame. The base is fixedly installed at the bottom of the lower mold mechanism. The mold frame includes a supporting top plate and columns. The supporting top plate is fixedly installed above the upper mold mechanism by four columns. The supporting top plate has through holes for the output part of the external upper mold driving device to pass through.