Adjustable silica gel hot press

By introducing a dual-station alternating hot pressing and automatic mold opening mechanism into the silicone hot press, continuous hot pressing of silicone raw materials is achieved, solving the problem of cooling and waiting after silicone molding, and improving production efficiency and the practicality of the equipment.

CN224170286UActive Publication Date: 2026-04-28TUMAI ELECTRONICS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TUMAI ELECTRONICS TECH CO LTD
Filing Date
2025-04-08
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The lower mold of existing silicone hot press machines is fixed, which means that after the silicone is molded, the product needs to cool and solidify, which increases production time and reduces production efficiency.

Method used

An adjustable silicone hot press was designed, which adopts a dual-station alternating hot pressing mechanism and an automatic mold opening mechanism. The continuous hot pressing of silicone raw materials is achieved by moving components, and the automatic mold opening mechanism is used to automatically separate the upper mold from the molding mold, simplifying the demolding process.

Benefits of technology

This technology enables continuous hot pressing of silicone raw materials, reduces the time spent waiting for finished silicone products to cool, improves production efficiency, and reduces equipment downtime and manufacturing costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an adjustable silica gel hot press, which belongs to the technical field of silica gel hot press molding and comprises a bottom plate, and a hot press body is fixedly mounted in the middle of the upper end of the bottom plate. A double-station alternate hot pressing mechanism is mounted at the upper end of the bottom plate; the double-station alternate hot pressing mechanism comprises two lower dies, a forming die, an upper die, a moving assembly and an opening and closing mechanism. By means of the mode, continuous hot pressing of silica gel raw materials can be achieved, the extra workload for waiting for cooling of silica gel finished products is reduced, and the standby time of equipment is shortened; through the moving assembly, the device can conduct hot press forming operation on different types of forming dies at the same time, and the practicability of the device is improved; and through the automatic mold opening mechanism, the upper mold and the forming mold are automatically separated, demolding is convenient, a mold opening device does not need to be additionally arranged, the manufacturing cost of the device is reduced, and the practicability of the device is further improved.
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Description

Technical Field

[0001] This utility model relates to the field of silicone hot pressing molding technology, specifically to an adjustable silicone hot press. Background Technology

[0002] The silicone hot press uses electric heating to heat silicone material to a specific temperature while applying high pressure to shape it in a mold.

[0003] Chinese patent CN222290809U discloses a hot pressing device for silicone pad production, including a worktable. A support column is mounted on one side of the worktable's upper surface, and a support plate is mounted above the support column. A hydraulic rod is mounted on the upper end of the support plate, and a hot press is mounted at the output end of the hydraulic rod. A mold body is mounted at the center of the worktable surface. Convenient assembly and disassembly mechanisms for quick assembly and disassembly of the mold body are mounted on both sides of the worktable's upper surface. A cooling mechanism for cooling the mold body is mounted on one side of the support column. However, this device still has the following problems during use:

[0004] The lower mold of the device is fixed in place. After the silicone molding is opened, it is necessary to wait for the product to cool and solidify, which increases the waiting time in the production process and reduces production efficiency.

[0005] Based on this, this utility model designs an adjustable silicone hot press to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an adjustable silicone hot press.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An adjustable silicone hot press includes a base plate, a hot press body, a dual-station alternating hot press mechanism, and an automatic mold opening mechanism. The hot press body is fixedly installed in the upper middle part of the base plate.

[0009] A dual-station alternating hot pressing mechanism is installed on the upper end of the base plate; the dual-station alternating hot pressing mechanism includes two lower molds, a forming mold, an upper mold, a moving component for controlling the switching of the lower mold between the hot pressing station and the loading / unloading station, and multiple sets of symmetrically arranged opening and closing mechanisms for controlling the separation and closure of the lower mold and the forming mold; the two lower molds are symmetrically installed on the left and right sides of the upper end of the moving component; the forming mold is inserted into the lower mold; the upper mold is hinged to the forming mold; the moving component and the opening and closing mechanism are installed on the upper end of the base plate, the moving component is connected to the lower mold; the opening and closing mechanism is connected to the forming mold;

[0010] Furthermore, the upper mold and the upper left and right ends of the hot press body are equipped with an automatic mold opening mechanism for controlling the rotation of the upper mold to facilitate demolding.

[0011] Furthermore, the moving component includes a guide rail, a lateral movement control component for controlling the movement of the fixed plate, a sliding block, and a fixed plate. The lateral movement control component is fixedly installed at the lower end of the base plate. The guide rail is symmetrically fixedly installed on the front and rear sides of the upper end of the base plate. The sliding block is limited and slidably connected to the guide rail. The lower end of the fixed plate is fixedly connected to the sliding blocks on the front and rear sides. The lower mold is symmetrically fixedly installed on the left and right sides of the upper end of the fixed plate.

[0012] Furthermore, the opening and closing mechanism includes a push cylinder, a vertical guide rod, and a lifting plate. The push cylinder is fixedly installed on the base plate, and the output end of the push cylinder is fixedly connected to the lifting plate. The upper end of the vertical guide rod is fixedly connected to the lifting plate, and the lower end of the vertical guide rod is slidably connected to the base plate.

[0013] Furthermore, the inner end of the lifting plate is symmetrically provided with limiting grooves on both the left and right sides; the forming mold is engaged with the limiting grooves;

[0014] Furthermore, the automatic mold opening mechanism includes a pulling component for controlling the rotation of the upper mold, a moving block, and a lifting component for controlling the movement of the moving block. One end of the pulling component is connected to the upper mold, and the other end of the pulling component is connected to the moving block. The lifting component is mounted on the hot press body, and the moving block is connected to the lifting component.

[0015] Furthermore, the pulling assembly includes a first connecting rod and a second connecting rod. One end of the first connecting rod is fixedly connected to the outer end of the upper mold, and the other end of the first connecting rod is hinged to one end of the second connecting rod; the other end of the second connecting rod is hinged to the moving block.

[0016] Furthermore, the lifting assembly includes a guide rod, a vertically moving push cylinder, and a support frame. The support frame is symmetrically fixedly installed on the upper left and right sides of the hot press body. The upper sides of the left and right ends of the hot press body are symmetrically provided with mounting grooves. The lower end of the guide rod is fixedly installed in the mounting groove, and the upper end of the guide rod is fixedly connected to the support frame. The vertically moving push cylinder is fixedly installed on the upper end of the support frame. The output end of the vertically moving push cylinder is fixedly connected to the moving block. The moving block is slidably connected to the guide rod.

[0017] Compared with the prior art, the advantages of this utility model are as follows: it can realize continuous hot pressing of silicone raw materials, reducing the extra workload of waiting for the silicone finished product to cool down and reducing the standby time of the equipment; and through the moving component, the device can simultaneously perform hot pressing molding operations on different types of molding molds, improving the practicality of the device; through the automatic mold opening mechanism, the upper mold and the molding mold can be automatically separated, which facilitates demolding, avoids the need to set up an additional mold opening device, reduces the manufacturing cost of the device, and further improves the practicality of the device. Attached Figure Description

[0018] 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This utility model relates to a three-dimensional adjustable silicone hot press. Figure 1 ;

[0020] Figure 2 This is a front view of an adjustable silicone hot press according to the present invention;

[0021] Figure 3 This utility model relates to a three-dimensional adjustable silicone hot press. Figure 2 ;

[0022] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 5 This is a three-dimensional view of the lower mold, forming mold, and upper mold.

[0024] The labels in the diagram represent:

[0025] 1. Base plate; 2. Hot press body; 3. Dual-station alternating hot pressing mechanism; 31. Moving component; 311. Guide rail; 312. Lateral moving push cylinder; 313. Sliding block; 314. Fixed plate; 32. Lower mold; 33. Forming mold; 34. Upper mold; 35. Opening and closing mechanism; 351. Push cylinder; 352. Vertical guide rod; 353. Lifting plate; 354. Limiting groove; 4. Automatic mold opening mechanism; 41. First connecting rod; 42. Second connecting rod; 43. Moving block; 44. Guide rod; 45. Vertical moving push cylinder; 46. Stand. Detailed Implementation

[0026] 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, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0028] In some embodiments, please refer to the accompanying drawings. Figures 1-5 An adjustable silicone hot press includes a base plate 1, a hot press body 2, a dual-station alternating hot press mechanism 3, and an automatic mold opening mechanism 4. The hot press body 2 is fixedly installed in the upper middle part of the base plate 1. The hot press body 2 adopts mature technology in the industry. The upper middle part of the base plate 1 is set as the hot press station, and the left and right sides of the upper end of the base plate 1 are set as loading and unloading stations.

[0029] A dual-station alternating hot pressing mechanism 3 is installed on the upper end of the base plate 1. The dual-station alternating hot pressing mechanism 3 includes two lower molds 32, a forming mold 33, an upper mold 34, a moving component 31 for controlling the switching of the lower mold 32 between the hot pressing station and the loading / unloading station, and multiple sets of opening and closing mechanisms 35 symmetrically arranged front and rear for controlling the separation and closing of the lower mold 32 and the forming mold 33. The two lower molds 32 are symmetrically installed on the left and right sides of the upper end of the moving component 31. The forming mold 33 is inserted into the lower mold 32. The upper mold 34 is hinged to the forming mold 33. The moving component 31 and the opening and closing mechanism 35 are installed on the upper end of the base plate 1. The moving component 31 is connected to the lower mold 32. The opening and closing mechanism 35 is connected to the forming mold 33.

[0030] Automatic mold opening mechanism 4 for controlling the rotation of the upper mold 34 and facilitating demolding is installed on the upper left and right sides of the upper mold 34 and the hot press body 2.

[0031] In this invention, the operator places the silicone raw material into the molding mold 33 at the loading / unloading station. At this time, the lower mold 32 is inserted and fixed to the molding mold 33, and the upper mold 34 is in an upward unfolding state under the action of the automatic mold opening mechanism 4. Subsequently, the moving component 31 drives the two lower molds 32 to move synchronously, so that the lower mold 32 containing the silicone raw material moves from the loading / unloading station to the hot pressing station. During the movement, the automatic mold opening mechanism 4 causes the upper mold 34 to rotate downward until the upper mold 34 is in a horizontal state, at which point the upper mold 34 fits into the molding mold 33. Then, the hot press body 2 presses the upper mold 34 downward and aligns it with the lower mold 32. The silicone material in the mold 33 undergoes hot pressing. At the same time, another lower mold 32 moves from the hot pressing station to the loading and unloading station. During the movement, under the action of another set of automatic mold opening mechanisms 4, the other upper mold 34 rotates upward, and then the silicone material can be placed in another molding mold 33. After the silicone material in the molding mold 33 at the hot pressing station completes the hot pressing operation, the moving component 31 works again to drive the two lower molds 32 to move synchronously. The lower mold 32 that has completed the silicone hot pressing operation at the hot pressing station moves to the loading and unloading station, and the lower mold 32 at the loading and unloading station moves to the silicone hot pressing station to perform the next set of silicone hot pressing.

[0032] As the lower mold 32, having completed the silicone hot pressing operation, moves back to the loading / unloading station, the upper mold 34 opens under the action of the automatic mold opening mechanism 4. Subsequently, the opening and closing mechanism 35 and the automatic mold opening mechanism 4 work to push the molding mold 33 and the upper mold 34 downwards. At this time, the molding mold 33 separates from the lower mold 32. After the silicone product inside the molding mold 33 cools completely, it is removed. Then, the opening and closing mechanism 35 works to reset the molding mold 33, allowing it to reconnect and fix with the lower mold 32, and new silicone material is placed inside the molding mold 33. The molding mold 33 is now in the hot pressing station. The silicone raw material is molded; then the above operation is repeated to achieve continuous hot pressing of the silicone raw material, reducing the extra workload of waiting for the silicone finished product to cool down and reducing the standby time of the equipment; and the moving component 31 also allows the device to perform hot pressing molding operations on different types of molding molds 33 at the same time, which facilitates the adjustment of product type and improves the practicality of the device; the automatic mold opening mechanism 4 makes the upper mold 34 and the molding mold 33 automatically separate, which facilitates demolding, avoids the need to set up an additional mold opening device, reduces the manufacturing cost of the device, and further improves the practicality of the device.

[0033] like Figure 1 and Figure 2 As shown, the moving component 31 includes a guide rail 311, a lateral movement control component, a sliding block 313, and a fixed plate 314. The lateral movement control component is fixedly installed at the lower end of the base plate 1. The guide rail 311 is symmetrically fixedly installed on the front and rear sides of the upper end of the base plate 1. The sliding block 313 is slidably connected to the guide rail 311 for limiting. The lower end of the fixed plate 314 is fixedly connected to the sliding blocks 313 on the front and rear sides. The lower mold 32 is symmetrically fixedly installed on the left and right sides of the upper end of the fixed plate 314. The lateral movement control component is connected to the fixed plate 314.

[0034] The lateral movement control component adopts a lateral movement push cylinder 312, and the output end of the lateral movement push cylinder 312 is fixedly connected to the fixed plate 314.

[0035] like Figure 3 As shown, the opening and closing mechanism 35 includes a push cylinder 351, a vertical guide rod 352, and a lifting plate 353. The push cylinder 351 is fixedly installed on the base plate 1, and the output end of the push cylinder 351 is fixedly connected to the lifting plate 353. The upper end of the vertical guide rod 352 is fixedly connected to the lifting plate 353, and the lower end of the vertical guide rod 352 is slidably connected to the base plate 1. Limiting grooves 354 are symmetrically arranged on the left and right sides of the inner end of the lifting plate 353. The forming mold 33 is engaged with the limiting grooves 354.

[0036] like Figure 2 and Figure 4As shown, the automatic mold opening mechanism 4 includes a first connecting rod 41, a second connecting rod 42, a moving block 43, a guide rod 44, a vertical moving push cylinder 45, and a support frame 46. One end of the first connecting rod 41 is fixedly connected to the outer end of the upper mold 34, and the other end of the first connecting rod 41 is hinged to one end of the second connecting rod 42; the other end of the second connecting rod 42 is hinged to the moving block 43; the support frame 46 is symmetrically fixedly installed on the upper left and right sides of the hot press body 2; mounting grooves are symmetrically provided on the upper sides of the left and right ends of the hot press body 2; the lower end of the guide rod 44 is fixedly installed in the mounting groove, and the upper end of the guide rod 44 is fixedly connected to the support frame 46; the vertical moving push cylinder 45 is fixedly installed on the upper end of the support frame 46; and the output end of the vertical moving push cylinder 45 is fixedly connected to the moving block 43; the moving block 43 and the guide rod 44 are in a limited sliding connection.

[0037] In this utility model, the operator places the silicone raw material into the molding mold 33 located at the left loading and unloading station. At this time, the lower mold 32 is inserted and fixed to the molding mold 33, and the upper mold 34 is in an upward flipped state. Then, the horizontal moving push cylinder 312 works to pull the fixed plate 314 and the sliding block 313 to move to the right along the guide rail 311. At this time, the two lower molds 32 installed on the upper end of the fixed plate 314 move to the right at the same time, so that the lower mold 32 containing the silicone raw material moves from the left loading and unloading station to the hot pressing station. During the movement, the moving block 43 remains fixed. When the upper mold 34 moves to the right, it will pull the first connecting rod 41 to rotate downward together. The downward rotation of the first connecting rod 41 will pull the second connecting rod 42 to rotate downward together until the upper mold 34 is in a horizontal state, the upper mold 34 is in contact with the molding mold 33, and the upper mold 34 is in the hot pressing station.

[0038] Subsequently, the hot press body 2 works to press the upper mold 34 downwards and cooperate with the lower mold 32 to perform hot pressing on the silicone material in the molding mold 33. At the same time, the other lower mold 32 moves from the hot pressing station to the right loading and unloading station. During the movement, since the moving block 43 remains fixed, the first connecting rod 41 will pull the upper mold 34 to rotate upwards. The rotation of the first connecting rod 41 will lift the second connecting rod 42 upwards until the upper mold 34 moves to the right loading and unloading station. At this time, the upper mold 34 will be in an upward flipped and opened state under the traction of the first connecting rod 41 and the second connecting rod 42. Then, the silicone material can be placed in the right molding mold 33.

[0039] After the molding die 33 in the hot pressing station completes the hot silicone raw material pressing operation, the lateral moving push cylinder 312 pushes the fixed plate 314 to move to the left, so that the lower die 32 in the hot pressing station that has completed the silicone hot pressing operation moves to the loading and unloading station, while the lower die 32 in the right loading and unloading station moves to the silicone hot pressing station to perform the next set of silicone hot pressing.

[0040] As the lower mold 32, having completed the silicone hot pressing operation, moves back to the left loading / unloading station, the upper mold 34 flips open under the action of the first connecting rod 41 and the second connecting rod 42. After the molding mold 33 moves back from the hot pressing station to the loading / unloading station, both its front and rear ends are located within the same set of front and rear limiting grooves 354. Subsequently, the push cylinder 351 and the vertical moving push cylinder 45 work simultaneously. The push cylinder 351 pushes the lifting plate 353 upwards along the vertical guide rod 352, moving the molding mold 33 and the upper mold 34. The vertical moving push cylinder 45 moves the moving block 43 upwards along the guide rod 44, moving the first connecting rod 41 and the second connecting rod 42. At this point, the molding mold 33 separates from the lower mold 32.

[0041] Afterwards, wait for the silicone product in the molding mold 33 to cool down and remove it. Then, push cylinder 351 and vertical moving push cylinder 45 work to drive the molding mold 33, the first connecting rod 41 and the second connecting rod 42 to reset, so that the molding mold 33 and the lower mold 32 are reconnected and fixed, and new silicone raw material is placed in the molding mold 33. At this time, the silicone raw material in the molding mold 33 at the hot pressing station is formed. Repeat the above operation to achieve continuous hot pressing of silicone raw material.

[0042] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An adjustable silicone hot press, comprising a base plate (1), characterized in that: It also includes a hot press body (2), a dual-station alternating hot press mechanism (3) and an automatic mold opening mechanism (4), with the hot press body (2) fixedly installed at the upper middle part of the base plate (1); A dual-station alternating hot pressing mechanism (3) is installed on the upper end of the base plate (1); the dual-station alternating hot pressing mechanism (3) includes two lower molds (32), a forming mold (33), an upper mold (34), a moving component (31) for controlling the switching of the lower mold (32) between the hot pressing station and the loading and unloading station, and multiple sets of opening and closing mechanisms (35) symmetrically arranged in front and behind for controlling the separation and closing of the lower mold (32) and the forming mold (33); the two lower molds (32) are symmetrically installed on the left and right sides of the upper end of the moving component (31); the forming mold (33) is inserted into the lower mold (32); the upper mold (34) is hinged to the forming mold (33); the moving component (31) and the opening and closing mechanism (35) are installed on the upper end of the base plate (1), the moving component (31) is connected to the lower mold (32); the opening and closing mechanism (35) is connected to the forming mold (33).

2. The adjustable silicone hot press according to claim 1, characterized in that, The upper mold (34) and the upper left and right ends of the hot press body (2) are equipped with an automatic mold opening mechanism (4) for controlling the rotation of the upper mold (34) to facilitate demolding.

3. The adjustable silicone hot press according to claim 1, characterized in that, The moving component (31) includes a guide rail (311), a lateral movement control component for controlling the movement of the fixed plate (314), a sliding block (313), and a fixed plate (314). The lateral movement control component is fixedly installed at the lower end of the base plate (1). The guide rail (311) is symmetrically fixedly installed on the front and rear sides of the upper end of the base plate (1). The sliding block (313) is limited and slidably connected to the guide rail (311). The lower end of the fixed plate (314) is fixedly connected to the sliding blocks (313) on the front and rear sides. The lower mold (32) is symmetrically fixedly installed on the left and right sides of the upper end of the fixed plate (314).

4. The adjustable silicone hot press according to claim 3, characterized in that, The opening and closing mechanism (35) includes a push cylinder (351), a vertical guide rod (352), and a lifting plate (353). The push cylinder (351) is fixedly installed on the base plate (1), and the output end of the push cylinder (351) is fixedly connected to the lifting plate (353). The upper end of the vertical guide rod (352) is fixedly connected to the lifting plate (353), and the lower end of the vertical guide rod (352) is limited and slidably connected to the base plate (1).

5. The adjustable silicone hot press according to claim 4, characterized in that, The lifting plate (353) has symmetrically arranged limiting grooves (354) on the left and right sides of its inner end; the forming mold (33) is engaged with the limiting grooves (354).

6. The adjustable silicone hot press according to claim 2, characterized in that, The automatic mold opening mechanism (4) includes a pulling component for controlling the rotation of the upper mold (34), a moving block (43), and a lifting component for controlling the movement of the moving block (43). One end of the pulling component is connected to the upper mold (34), and the other end of the pulling component is connected to the moving block (43). The lifting component is installed on the hot press body (2), and the moving block (43) is connected to the lifting component.

7. The adjustable silicone hot press according to claim 6, characterized in that, The pulling assembly includes a first connecting rod (41) and a second connecting rod (42). One end of the first connecting rod (41) is fixedly connected to the outer end of the upper mold (34), and the other end of the first connecting rod (41) is hinged to one end of the second connecting rod (42). The other end of the second connecting rod (42) is hinged to the moving block (43).

8. The adjustable silicone hot press according to claim 6, characterized in that, The lifting assembly includes a guide rod (44), a vertical moving push cylinder (45), and a support frame (46). The support frame (46) is symmetrically fixedly installed on the upper left and right sides of the hot press body (2). The upper sides of the left and right ends of the hot press body (2) are symmetrically provided with mounting grooves. The lower end of the guide rod (44) is fixedly installed in the mounting groove, and the upper end of the guide rod (44) is fixedly connected to the support frame (46). The vertical moving push cylinder (45) is fixedly installed on the upper end of the support frame (46). The output end of the vertical moving push cylinder (45) is fixedly connected to the moving block (43). The moving block (43) is limited and slidably connected to the guide rod (44).

Citation Information

Patent Citations

  • Hot pressing device for silica gel pad production

    CN222290809U