32+32 hole scissors foot automatic mold high-efficiency demolding structure

By using an electric telescopic rod to drive the lifting plate and ejector pin structure, the scissor-foot product is directly ejected and falls into the recycling box, solving the problem of low demolding efficiency of existing molds and achieving efficient production and product protection.

CN224296477UActive Publication Date: 2026-05-29CHONGQING JIAXIN PRECISION MOULD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING JIAXIN PRECISION MOULD CO LTD
Filing Date
2025-05-09
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The existing 32+32 cavity scissor-foot automated mold is inefficient during the demolding process. It requires a material transfer mechanism to move the product from the lower mold to the collection device, which increases the material transfer time and affects production efficiency.

Method used

Multiple electric telescopic rods drive the lifting plate, and the inner and outer shears are directly pushed out and fall into the recycling box through the first and second ejector pins. Combined with guide blocks and limit plates, stability and positioning guidance are ensured to avoid the production of defective products.

Benefits of technology

It achieves efficient demolding, reduces material transfer time, improves production efficiency, and protects products through uniform force distribution and a buffer structure, reducing the risk of damage.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224296477U_ABST
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Abstract

The utility model relates to scissor leg automation mould technical field, especially 32+32 hole scissor leg automation mould high -efficient stripping structure of a kind of, including, lower mould, the bottom of lower mould is installed in the top of fixed base, the both ends of the bottom of mould cavity of lower mould are respectively slidably connected first thimble and second thimble, the bottom of first thimble and second thimble is connected with lifting plate, the bottom of lifting plate is connected with fixed base by electric telescopic link, the side surface of fixed base is connected with the drive end of first motor by first rotating shaft, the side surface of second support plate is rotatably connected by second rotating shaft on the other side surface of fixed base, first support plate and second support plate are installed in the both ends of the top of support base, recovery box is placed in the top of support base, by the above structure, all injection-molded products can be ejected at a time, and directly fall into recovery box, without the secondary material moving mechanism to the ejected product secondary material moving, reduce material moving time, effectively improve production efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of automated scissor-foot mold technology, and in particular to a high-efficiency demolding structure for a 32+32 cavity automated scissor-foot mold. Background Technology

[0002] Scissor-switch pedals are an essential component of pen keyboards, generally consisting of an inner scissor and an outer scissor. The inner scissor has a pivot on both the front and rear outer walls, while the outer scissor has corresponding pivot holes on its front and rear inner walls. The scissor-switch pedals are manufactured by injection molding the inner and outer scissor separately using a scissor-switch pedal mold.

[0003] To improve production efficiency, existing scissor-foot molds simultaneously perform internal and external shearing injection molding, and use a multi-cavity mold structure to produce multiple internal and external shearing cavities in a single injection. A 32+32 cavity scissor-foot automated mold refers to a mold with 32 external shearing cavities and 32 internal shearing cavities. During demolding, existing scissor-foot molds require a demolding mechanism to separate the product from the lower mold, followed by a material transfer mechanism to move the separated product to a collection device. This is inefficient, and the multi-cavity mold structure, producing multiple molds at once, further increases material transfer time.

[0004] Therefore, it is necessary to provide a high-efficiency demolding structure for an automated 32+32 cavity scissor-foot mold to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a high-efficiency demolding structure for an automated mold with 32+32 cavity scissor feet.

[0006] This utility model provides a high-efficiency demolding structure for an automated 32+32 cavity scissor-type mold, comprising: an upper mold and a lower mold with multiple cavities. The bottom of the lower mold is fixedly connected to the top of a support frame, which is mounted on the top of a fixed base. A first moving hole and a second moving hole are respectively provided at both ends of the bottom of the cavities of the lower mold. A first ejector pin and a second ejector pin are slidably connected to the first and second moving holes. The bottoms of both the first and second ejector pins are connected to the top of a lifting plate. The bottom of the lifting plate is connected to the telescopic end of an electric telescopic rod. The fixed end of the electric telescopic rod is installed inside a placement slot, which is located on the top of the fixed base. One side of the fixed base is connected to the drive end of a first motor via a first rotating shaft passing through the side of a first support plate. The first motor is mounted on a motor plate connected to the first support plate. The other side of the fixed base is rotatably connected to the side of a second support plate via a second rotating shaft. The first and second support plates are mounted at both ends of the top of the support base. A recycling box is placed on the top of the support base.

[0007] Preferably, there are multiple electric telescopic rods, which are arranged linearly at equal intervals inside the placement slot.

[0008] Preferably, guide blocks are connected to all four sides of the lifting plate, and the guide blocks are slidably connected to guide grooves, which are located on the inner side of the support frame.

[0009] Preferably, the inside of the recycling box is bonded with a cushioning pad, and the cushioning pad is made of sponge.

[0010] Preferably, the top of the support base is provided with a mounting groove, and an electric lifting rod is installed inside the mounting groove. The top of the electric lifting rod is connected to the bottom of the recycling box.

[0011] Preferably, there are two mounting slots, which are symmetrically arranged about the central axis of the support base.

[0012] Preferably, the upper mold has a first limiting plate and a second limiting plate movably connected to its two sides, the inner side of the first limiting plate and one side of the lower mold are located on the same vertical plane, and the inner side of the second limiting plate and the other side of the lower mold are located on the same vertical plane.

[0013] Compared with related technologies, the 32+32 cavity scissor-foot automated mold high-efficiency demolding structure provided by this utility model has the following beneficial effects:

[0014] 1. This utility model, by activating an electric telescopic rod, drives the lifting plate to move, thereby moving the first and second ejector pins connected to the lifting plate. This ejects the outer and inner shears located in the mold cavity, and under the action of gravity, they fall into the recycling box. Through the above structure, all injection-molded products can be ejected at once and fall directly into the recycling box, eliminating the need for secondary material transfer through a material transfer mechanism, reducing material transfer time, and effectively improving production efficiency.

[0015] 2. This utility model, by setting multiple electric telescopic rods and arranging them at equal intervals, can make the lifting plate evenly stressed, effectively improving the stability of the lifting plate during the rising process. This prevents the lifting plate from shifting during the rising process and affecting the movement trajectory of the ejector pin. Furthermore, by setting guide blocks and using guide grooves for limiting and guiding, the stability of the lifting plate during the rising process is further improved.

[0016] 3. By setting a first limiting plate and a second limiting plate, this utility model can play a positioning and guiding role when the upper mold descends. When the lower mold rotates and cannot return to its original position, the obstruction of the first limiting plate and the second limiting plate can prevent the upper mold from continuing to move downward, effectively preventing the production of defective products. Attached Figure Description

[0017] Figure 1 A schematic diagram of a preferred embodiment of a high-efficiency demolding structure for an automated mold with 32+32 cavity scissor feet provided by this utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the efficient demolding structure from a rear view.

[0019] Figure 3 for Figure 1 A schematic diagram of the top structure of the mounting base shown;

[0020] Figure 4 for Figure 1 The diagram shows the structure of the lifting platform;

[0021] The following are the labels in the diagram: 1. Lower mold; 2. Upper mold; 3. Fixed base; 4. Support frame; 5. First limiting plate; 6. First support plate; 7. First motor; 8. Motor plate; 9. Support base; 10. Recycling box; 11. Second limiting plate; 12. Second support plate; 13. Mounting slot; 14. Electric lifting rod; 15. Buffer pad; 16. Placement slot; 17. Guide slot; 18. Lifting plate; 19. Guide block; 20. Electric telescopic rod; 21. First ejector pin; 22. Second ejector pin. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] refer to Figures 1 to 4This utility model provides a high-efficiency demolding structure for an automated 32+32 cavity scissor-foot mold, comprising: an upper mold 2 with multiple cavities and a lower mold 1. The bottom of the lower mold 1 is fixedly connected to the top of a support frame 4, which is mounted on the top of a fixed base 3. A first moving hole and a second moving hole are respectively provided at both ends of the bottom of the cavities of the lower mold 1. A first ejector pin 21 and a second ejector pin 22 are slidably connected to the first and second moving holes. The bottoms of both the first ejector pin 21 and the second ejector pin 22 are connected to the top of a lifting plate 18. The bottom of the lifting plate 18 is connected to an electric telescopic rod. The telescopic end of the electric telescopic rod 20 is connected, and the fixed end of the electric telescopic rod 20 is installed inside the placement groove 16. The placement groove 16 is set on the top of the fixed base 3. One side of the fixed base 3 is connected to the drive end of the first motor 7 through the side of the first support plate 6 via the first rotating shaft. The first motor 7 is installed on the motor plate 8 connected to the first support plate 6. The other side of the fixed base 3 is rotatably connected to the side of the second support plate 12 via the second rotating shaft. The first support plate 6 and the second support plate 12 are installed at both ends of the top of the support base 9. A recycling box 10 is placed on the top of the support base 9.

[0024] It should be noted that the scissor-foot automated mold is a single mold with a multi-cavity structure. The 32+32 cavities refer to the fact that the mold has 32 external shearing cavities and 32 internal shearing cavities.

[0025] In use, the upper mold 2 and lower mold 1 are closed, and molten raw material is injected into the closed mold by an injection molding machine. Through the action of the mold, external and internal shears are generated by injection molding. After injection molding is completed, the upper mold 2 is returned to its original position by the drive mechanism. Then, the first motor 7 drives the first rotating shaft to rotate, which in turn drives the fixed base 3 to rotate, and the lower mold 1 connected to the fixed base 3 rotates accordingly, rotating the lower mold 1 from opening upward to opening downward. Then, by activating the electric telescopic rod 20, the lifting plate 18 is moved by the electric telescopic rod 20, which in turn moves the first ejector pin 21 and the second ejector pin 22 connected to the lifting plate 18, ejecting the external and internal shears located in the mold cavity. Under the action of gravity, they fall into the recycling box 10. Through the above structure, all injection-molded products can be ejected at one time and fall directly into the recycling box 10, without the need for secondary material transfer by the material transfer mechanism, reducing material transfer time and effectively improving production efficiency.

[0026] In the embodiments of this utility model, reference is made to Figure 4 As shown, there are multiple electric telescopic rods 20, which are arranged linearly at equal intervals inside the placement slot 16.

[0027] In the embodiments of this utility model, reference is made to Figure 3 , Figure 4 As shown, guide blocks 19 are connected to all four sides of the lifting plate 18. The guide blocks 19 are slidably connected to guide grooves 17, which are provided on the inner side of the support frame 4.

[0028] It should be noted that by setting multiple electric telescopic rods 20 and arranging them at equal intervals, the lifting plate 18 can be subjected to uniform force, effectively improving the stability of the lifting plate 18 during the rising process. This prevents the lifting plate 18 from shifting during the rising process and affecting the movement trajectory of the ejector pin. Furthermore, by setting guide blocks 19 and using guide grooves 17 for limiting and guiding, the stability of the lifting plate 18 during the rising process is further improved.

[0029] In the embodiments of this utility model, reference is made to Figure 3 As shown, a cushioning pad 15 is bonded to the inside of the recycling box 10, and the cushioning pad 15 is made of sponge.

[0030] In the embodiments of this utility model, reference is made to Figure 3 As shown, the top of the support base 9 is provided with a mounting groove 13, and an electric lifting rod 14 is installed inside the mounting groove 13. The top of the electric lifting rod 14 is connected to the bottom of the recycling box 10.

[0031] In the embodiments of this utility model, reference is made to Figure 3 As shown, there are two mounting slots 13, which are symmetrically arranged about the central axis of the support base 9.

[0032] It should be noted that: by setting up a recycling box 10 made of sponge material, the cushioning pad 15 can reduce the impact force when the outer and inner shears in the mold cavity are ejected and fall into the recycling box 10 under the action of gravity, thus preventing damage to the outer and inner shears. By setting up an electric lifting rod 14, the recycling box 10 can be moved upward through the drive of the electric lifting rod 14, which can reduce the distance between the recycling box 10 and the lower mold 1, thereby reducing the impact force when the outer and inner shears fall. The double electric lifting rod 14 makes the bottom of the recycling box 10 evenly stressed, effectively improving the stability of the recycling box 10 when it moves upward.

[0033] In the embodiments of this utility model, reference is made to Figure 1 As shown, the upper mold 2 is movably connected to a first limiting plate 5 and a second limiting plate 11 on its two sides. The inner side of the first limiting plate 5 and one side of the lower mold 1 are located on the same vertical plane, and the inner side of the second limiting plate 11 and the other side of the lower mold 1 are located on the same vertical plane.

[0034] It should be noted that by setting the first limiting plate 5 and the second limiting plate 11, the upper mold 2 can play a positioning and guiding role when it descends. When the lower mold 1 rotates and cannot return to its original position, the first limiting plate 5 and the second limiting plate 11 can prevent the upper mold 2 from continuing to move downward, effectively preventing the production of defective products.

[0035] The working principle of the 32+32 cavity scissor-foot automated mold high-efficiency demolding structure provided by this utility model is as follows:

[0036] By activating the electric telescopic rod 20, the lifting plate 18 is moved, which in turn moves the first ejector pin 21 and the second ejector pin 22 connected to the lifting plate 18. This ejects the outer and inner shears located in the mold cavity, and under the action of gravity, they fall into the recycling box 10. Through the above structure, all injection-molded products can be ejected at once and fall directly into the recycling box 10, eliminating the need for secondary material transfer through a material transfer mechanism. This reduces material transfer time and effectively improves production efficiency.

[0037] The circuits and controls involved in this utility model are all existing technologies and will not be described in detail here.

[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high-efficiency demolding structure for an automated mold with 32+32 cavity scissor feet, characterized in that, include: An upper mold (2) and a lower mold (1) with multiple cavities are provided. The bottom of the lower mold (1) is fixedly connected to the top of a support frame (4). The support frame (4) is installed on the top of a fixed base (3). The bottom of the cavities of the lower mold (1) is provided with a first moving hole and a second moving hole at both ends. The first moving hole and the second moving hole are slidably connected to a first ejector pin (21) and a second ejector pin (22). The bottom of the first ejector pin (21) and the second ejector pin (22) are both connected to the top of a lifting plate (18). The bottom of the lifting plate (18) is connected to the telescopic end of an electric telescopic rod (20). The electric telescopic rod (20) is... The fixed end is installed inside the placement slot (16), which is located on the top of the fixed seat (3). One side of the fixed seat (3) is connected to the drive end of the first motor (7) through the side of the first support plate (6) via the first rotating shaft. The first motor (7) is installed on the motor plate (8) connected to the first support plate (6). The other side of the fixed seat (3) is rotatably connected to the side of the second support plate (12) via the second rotating shaft. The first support plate (6) and the second support plate (12) are installed at both ends of the top of the support seat (9). A recycling box (10) is placed on the top of the support seat (9).

2. The efficient demolding structure for a 32+32 cavity scissor-foot automated mold according to claim 1, characterized in that, There are multiple electric telescopic rods (20), which are arranged linearly at equal intervals inside the placement slot (16).

3. The efficient demolding structure for a 32+32 cavity scissor-foot automated mold according to claim 1, characterized in that, The lifting plate (18) is connected to guide blocks (19) on all four sides. The guide blocks (19) are slidably connected to guide grooves (17). The guide grooves (17) are set on the inner side of the support frame (4).

4. The efficient demolding structure for a 32+32 cavity scissor-foot automated mold according to claim 1, characterized in that, The inside of the recycling box (10) is bonded with a cushioning pad (15), which is made of sponge.

5. The efficient demolding structure for a 32+32 cavity scissor-foot automated mold according to claim 1, characterized in that, The top of the support base (9) is provided with a mounting groove (13), and an electric lifting rod (14) is installed inside the mounting groove (13). The top of the electric lifting rod (14) is connected to the bottom of the recycling box (10).

6. The efficient demolding structure for a 32+32 cavity scissor-foot automated mold according to claim 5, characterized in that, The number of mounting slots (13) is two, and the two mounting slots (13) are symmetrically arranged about the central axis of the support base (9).

7. The efficient demolding structure for a 32+32 cavity scissor-foot automated mold according to claim 1, characterized in that, The upper mold (2) is movably connected to a first limiting plate (5) and a second limiting plate (11) on its two sides respectively. The inner side of the first limiting plate (5) and one side of the lower mold (1) are located on the same vertical plane, and the inner side of the second limiting plate (11) and the other side of the lower mold (1) are located on the same vertical plane.