Rotary clamping mechanism for injection mold

By designing a rotary clamping mechanism for injection molds, the problem of poor stability of injection molds assisted by cranes in the existing technology is solved, realizing stability and safety during mold changeover and improving changeover efficiency.

CN223918489UActive Publication Date: 2026-02-17KUNSHAN XUANJIACHENG PRECISION MOULD CO LTD
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Patent Information

Application Number
CN202520315958.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2026-02-17
Estimated Expiration
2035-02-26

AI Technical Summary

Technical Problem

In the existing technology, the stability of the injection mold assisted by the crane is not good during the hoisting and replacement process, which may cause the mold to shake during the replacement process, affecting the replacement efficiency and safety.

Method used

Design a rotary clamping mechanism for injection molds, including a movable support, an adjustment table, a rotary disk, clamping components, and a drive component. Through the cooperation of these components, stable clamping and rotation adjustment of the injection mold can be achieved, improving the stability of the mold during the changeover process.

Benefits of technology

It improves the stability and safety of the injection mold change process and enhances the work efficiency of operators.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a rotary clamping mechanism for an injection mold, which relates to the field of injection molds and comprises a movable support, an adjusting table fixedly connected to the top of the movable support, a rotary disc rotatably connected to the upper surface of the adjusting table, two clamping components symmetrically arranged on the upper surface of the rotary disc, a driving component and a gear ring, the driving assembly is fixedly arranged on the adjusting table, the gear ring is fixedly arranged on the inner wall of the rotating disc, and the outer wall of the top of the driving assembly is movably connected with the outer wall of the gear ring; according to the scheme, through cooperation of the movable support, the adjusting table, the rotating disc, the symmetrically-arranged clamping assemblies, the driving assembly and the gear ring, the injection mold can be rotationally clamped, meanwhile, the stability of the injection mold can be improved, an operator can replace the injection mold conveniently, and therefore the replacement efficiency of the injection mold can be improved; and meanwhile, the safety when the injection mold is replaced can be improved.
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Description

Technical Field

[0001] This utility model relates to the field of injection molds, and in particular to a rotary clamping mechanism for injection molds. Background Technology

[0002] Injection molding is a processing technology that involves heating and melting plastic raw materials, then injecting them into a mold cavity under high pressure to form a plastic product of a specific shape. This process is suitable for producing complex, precision, and high-volume plastic products and is widely used in the automotive, home appliance, medical device, and electronics industries. During injection molding, an injection mold is used for shaping. An injection mold typically consists of a fixed mold and a moving mold; the mold is closed to form the cavity and perform the injection molding operation.

[0003] In related technologies, during the injection molding process, when different shapes of plastic products need to be manufactured, the injection mold usually needs to be replaced. However, due to the large weight of the injection mold, multiple people may need to work together to lift it during the replacement process. This not only consumes manpower but may also reduce the efficiency of mold replacement. Therefore, some users use cranes to assist in the lifting and replacement of injection molds. However, during the lifting process of the injection mold by crane, the stability of the injection mold may be poor, causing the mold to shake during the replacement process. This may cause inconvenience to the operators and even affect the efficiency and safety of the replacement.

[0004] Therefore, it is necessary to provide a rotary clamping mechanism for injection molds to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the technical problem that the aforementioned method of lifting and replacing injection molds may cause the mold to shake during the replacement process, which could inconvenience the operators and even affect the efficiency and safety of the replacement, this utility model provides a rotary clamping mechanism for injection molds.

[0006] This utility model provides a rotary clamping mechanism for injection molds, comprising: a movable support, an adjustment platform fixedly connected to the top of the movable support, a rotating disk rotatably connected to the upper surface of the adjustment platform, two clamping components symmetrically arranged on the upper surface of the rotating disk, a drive component, and a gear ring, wherein the drive component is fixedly mounted on the adjustment platform, the gear ring is fixedly mounted on the inner wall of the rotating disk, and the top outer wall of the drive component is movably connected to the outer wall of the gear ring.

[0007] Preferably, the movable support includes a base plate, a plurality of movable wheels are uniformly fixedly connected to the lower surface of the base plate, a pusher is fixedly connected to one side of the base plate, and a first hydraulic cylinder is fixedly connected to the upper surface of the base plate, the output end of the first hydraulic cylinder being fixedly connected to the lower surface of the adjustment platform.

[0008] Preferably, the clamping assembly includes a second hydraulic cylinder fixedly connected to the upper surface of the rotary disk, a support plate fixedly connected to the output end of the second hydraulic cylinder, a second motor fixedly connected to one side of the support plate, a reverse screw fixedly connected to the output end of the second motor through the support plate, a reverse screw rotatably connected to the inner wall of the support plate at the end of the reverse screw away from the second motor, and a clamping plate symmetrically threaded to the outer wall of the reverse screw.

[0009] Preferably, the adjustment platform includes a rectangular platform fixedly connected to the output end of the first hydraulic cylinder. A first motor is fixedly connected to one side of the rectangular platform. A threaded rod is fixedly connected to the output end of the first motor through the rectangular platform. The end of the threaded rod away from the first motor is rotatably connected to the inner wall of the rectangular platform. A movable plate is threadedly connected to the outer wall of the threaded rod. The outer wall of the movable plate is slidably connected to the inner wall of the rectangular platform. The upper surface of the movable plate is rotatably connected to the bottom of the rotating disk.

[0010] Preferably, a plurality of conduits are uniformly and fixedly connected to the upper surface of the rotating disk, and guide rods are slidably connected to the inner walls of the conduits. The upper end face of the guide rods is fixedly connected to the lower surface of the support plate.

[0011] Preferably, the drive assembly includes a third motor fixedly connected to the inner wall of the movable plate, and a gear fixedly connected to the output end of the third motor. The gear is located inside the rotating disk, and the outer wall of the gear meshes with the outer wall of the gear ring.

[0012] Preferably, the upper surface of the movable plate is provided with mounting holes evenly distributed, and the inside of the mounting holes is provided with ball bearings, the top of which is in contact with the lower surface of the rotating disk.

[0013] Compared with related technologies, the rotary clamping mechanism for injection molds provided by this utility model has the following advantages:

[0014] 1. This rotary clamping mechanism for injection molds improves the stability of injection molds, facilitating mold replacement operations. The movable support limits the installation position of the adjusting platform, which in turn limits the installation position of the rotating disk. The rotating disk limits the installation position of the symmetrically arranged clamping components. These clamping components hold and fix the injection mold, improving its stability. The injection mold to be replaced is placed on one clamping component for clamping and limiting. By pushing the movable support, the operator can push the suspended side of the adjusting platform into the injection molding machine. Activating the adjusting platform, in conjunction with the rotating disk, moves the symmetrically arranged clamping components into the injection molding machine. Another clamping component holds the disassembled injection mold. Activating the drive component, in conjunction with the gear ring, controls the rotation of the rotating disk. The rotation of the rotating disk adjusts the position of the symmetrically arranged clamping components, positioning one clamping component holding the injection mold to be replaced in the correct installation position for easy installation by the operator.

[0015] 2. This rotary clamping mechanism for injection molds allows personnel to push the base plate to move via a pusher and multiple moving wheels. The base plate restricts the installation position of the first hydraulic cylinder. Activating the first hydraulic cylinder adjusts the height of the adjustment table, and activating the second hydraulic cylinder adjusts the height of the support plate. The support plate supports the injection mold. Activating the second motor controls the rotation of the reverse screw. The rotation of the reverse screw synchronously controls the symmetrically arranged clamping plates to move in opposite directions. The guide tube and guide rod guide the movement of the support plate.

[0016] 3. The rotary clamping mechanism for injection molds has a rectangular platform that restricts the installation position of the first motor and the threaded rod. Starting the first motor controls the rotation of the threaded rod, which in turn adjusts the movement of the movable plate within the rectangular platform. The movement of the movable plate drives the rotary disk to move. Starting the third motor controls the rotation of the gears, which, in conjunction with the gear ring, control the rotation of the rotary disk. The ball bearings support the rotary disk, thus enhancing its stability. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of a rotary clamping mechanism for injection molds provided by this utility model;

[0018] Figure 2 A cross-sectional view of a rotary clamping mechanism for injection molds provided by this utility model;

[0019] Figure 3 This utility model provides a rotary clamping mechanism for injection molds. Figure 2 Enlarged schematic diagram of the structure at point A in the diagram;

[0020] Figure 4 A schematic diagram of a movable support structure for a rotary clamping mechanism for injection molds provided by this utility model;

[0021] Figure 5 This utility model provides a schematic diagram of the clamping assembly structure of a rotary clamping mechanism for injection molds.

[0022] The following are the labeling elements in the diagram: 1. Moving support; 101. Base plate; 102. Moving wheel; 103. Push frame; 104. First hydraulic cylinder; 2. Adjusting platform; 201. Rectangular platform; 202. First motor; 203. Threaded rod; 204. Moving plate; 3. Rotary disk; 4. Clamping assembly; 401. Second hydraulic cylinder; 402. Support plate; 403. Second motor; 404. Reverse screw; 405. Clamping plate; 5. Drive assembly; 501. Third motor; 502. Gear; 6. Gear ring; 7. Mounting hole; 8. Ball bearing; 9. Guide tube; 10. Guide rod. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please refer to the following: Figures 1 to 5 A rotary clamping mechanism for injection molds includes: a movable support 1, an adjusting platform 2 fixedly connected to the top of the movable support 1, a rotating disk 3 rotatably connected to the upper surface of the adjusting platform 2, two clamping components 4 symmetrically arranged on the upper surface of the rotating disk 3, a drive component 5, and a toothed ring 6, wherein the drive component 5 is fixedly mounted on the adjusting platform 2, the toothed ring 6 is fixedly mounted on the inner wall of the rotating disk 3, and the top outer wall of the drive component 5 is movably connected to the outer wall of the toothed ring 6.

[0025] In practical implementation, the movable support 1 in the rotary clamping mechanism for injection molds can be moved by the user as needed. Simultaneously, the movable support 1 restricts the installation position of the adjusting platform 2. The adjusting platform 2 is relatively long, resulting in one side of its bottom being connected to the movable support 1, while the other side is suspended. The adjusting platform 2 restricts the installation position of the rotating disk 3. When the adjusting platform 2 is activated, the rotating disk 3 can be moved. The rotating disk 3 restricts the installation position of the symmetrically arranged clamping components 4. The clamping components 4 clamp and fix the injection mold. Specifically, during use, the operator can place the injection mold to be replaced on a clamping component 4 for clamping and limiting, push the movable support 1 to push the suspended side of the adjusting platform 2 into the injection molding machine, and then adjust the rotating disk using the adjusting platform 2. Position 3, when the rotating disk 3 moves, can drive the symmetrically arranged clamping components 4 into the injection molding machine. The other clamping component 4 can clamp the disassembled injection mold. Then, the drive component 5, in cooperation with the gear ring 6, can control the rotating disk 3 to rotate. By rotating the rotating disk 3, the position of the symmetrically arranged clamping components 4 can be adjusted so that the clamping component 4 holding the injection mold to be replaced is in the installation position, so as to facilitate the operator's installation operation. This application, through the cooperation of the movable bracket 1, the adjusting table 2, the rotating disk 3, the symmetrically arranged clamping components 4, the drive component 5 and the gear ring 6, can rotate and clamp the injection mold, and at the same time improve the stability of the injection mold, so as to facilitate the operator's replacement of the injection mold, thereby improving the efficiency of injection mold replacement and also improving the safety of injection mold replacement.

[0026] refer to Figure 1 , Figure 2 and Figure 4 As shown, the movable support 1 includes a base plate 101, a plurality of movable wheels 102 are uniformly fixedly connected to the lower surface of the base plate 101, a pusher 103 is fixedly connected to one side of the base plate 101, and a first hydraulic cylinder 104 is fixedly connected to the upper surface of the base plate 101. The output end of the first hydraulic cylinder 104 is fixedly connected to the lower surface of the adjustment platform 2.

[0027] In the specific implementation process, the operator can push the base plate 101 to move by cooperating with the push frame 103 and multiple moving wheels 102. The base plate 101 can restrict the installation position of the first hydraulic cylinder 104. When the first hydraulic cylinder 104 is started, the height of the adjustment table 2 can be adjusted so that this application can be matched with injection molding machines of different heights.

[0028] refer to Figure 1 , Figure 2 and Figure 5As shown, the clamping assembly 4 includes a second hydraulic cylinder 401 fixedly connected to the upper surface of the rotary disk 3. The output end of the second hydraulic cylinder 401 is fixedly connected to a support plate 402. A second motor 403 is fixedly connected to one side of the support plate 402. The output end of the second motor 403 passes through the support plate 402 and is fixedly connected to a reverse screw 404. The end of the reverse screw 404 away from the second motor 403 is rotatably connected to the inner wall of the support plate 402. A clamping plate 405 is symmetrically threaded onto the outer wall of the reverse screw 404.

[0029] In the specific implementation process, starting the second hydraulic cylinder 401 can adjust the height of the support plate 402, which can support the injection mold. At the same time, the support plate 402 can also limit the installation position of the second motor 403 and the reverse screw 404. Starting the second motor 403 can control the reverse screw 404 to rotate. The outer wall threads at both ends of the reverse screw 404 are set in opposite directions. The rotation of the reverse screw 404 can synchronously control the symmetrically arranged clamping plates 405 to move in opposite directions. The injection mold can be clamped by the opposite movement of the symmetrical clamping plates 405.

[0030] refer to Figure 2 , Figure 3 and Figure 4 As shown, the adjustment platform 2 includes a rectangular platform 201 fixedly connected to the output end of the first hydraulic cylinder 104. A first motor 202 is fixedly connected to one side of the rectangular platform 201. A threaded rod 203 is fixedly connected to the output end of the first motor 202 through the rectangular platform 201. The end of the threaded rod 203 away from the first motor 202 is rotatably connected to the inner wall of the rectangular platform 201. A movable plate 204 is threadedly connected to the outer wall of the threaded rod 203. The outer wall of the movable plate 204 is slidably connected to the inner wall of the rectangular platform 201. The upper surface of the movable plate 204 is rotatably connected to the bottom of the rotating disk 3.

[0031] In the specific implementation process, the rectangular platform 201 can restrict the installation position of the first motor 202 and the threaded rod 203. Starting the first motor 202 can control the threaded rod 203 to rotate. The rotation of the threaded rod 203 can adjust the movement of the movable plate 204 inside the rectangular platform 201. The movement of the movable plate 204 can drive the rotating disk 3 to move. It should be noted that the bottom of the rotating disk 3 and the movable plate 204 are rotatably connected by bearings and shafts.

[0032] refer to Figure 2 and Figure 5 As shown, multiple guide tubes 9 are uniformly fixedly connected to the upper surface of the rotating disk 3, and guide rods 10 are slidably connected to the inner wall of the guide tubes 9. The upper end face of the guide rods 10 is fixedly connected to the lower surface of the support plate 402.

[0033] In the specific implementation process, the guide tube 9 and the guide rod 10 cooperate to guide the movement of the support plate 402, thereby enhancing the stability of the support plate 402 when it moves.

[0034] refer to Figure 3 As shown, the drive assembly 5 includes a third motor 501 fixedly connected to the inner wall of the movable plate 204. A gear 502 is fixedly connected to the output end of the third motor 501. The gear 502 is located inside the rotating disk 3, and the outer wall of the gear 502 meshes with the outer wall of the gear ring 6.

[0035] In the specific implementation process, starting the third motor 501 can control the gear 502 to rotate, and the rotation of the gear 502, in conjunction with the gear ring 6, can control the rotating disk 3 to rotate.

[0036] refer to Figure 3 As shown, mounting holes 7 are evenly distributed on the upper surface of the movable plate 204, and ball bearings 8 are disposed inside the mounting holes 7. The top of the ball bearings 8 is in contact with the lower surface of the rotating disk 3.

[0037] In the specific implementation process, the installation position of the ball bearing 8 can be restricted by the installation hole 7. When the rotating disk 3 rotates, the ball bearing 8 can roll according to the rotation of the rotating disk 3, thereby supporting the rotating disk 3.

[0038] The working principle of the rotary clamping mechanism for injection molds provided by this utility model is as follows:

[0039] In use, the injection mold to be replaced is placed on a clamping component 4 for clamping and limiting. The operator pushes the movable bracket 1 to push the suspended side of the adjusting table 2 into the injection molding machine. Then, the adjusting table 2, in cooperation with the rotating disk 3, adjusts the symmetrically arranged clamping components 4 to move into the injection molding machine. Another clamping component 4 clamps the disassembled injection mold. The drive component 5, in cooperation with the gear ring 6, controls the rotating disk 3 to rotate. The rotation of the rotating disk 3 adjusts the position of the symmetrically arranged clamping components 4, so that one clamping component 4 holding the injection mold to be replaced is in the installation position, facilitating the operator's installation operation. This application, through the cooperation of the movable bracket 1, adjusting table 2, rotating disk 3, symmetrically arranged clamping components 4, drive component 5, and gear ring 6, can rotate and clamp the injection mold, while also improving the stability of the injection mold, facilitating the operator's injection mold replacement operation, thereby improving the efficiency of injection mold replacement and also improving the safety during injection mold replacement.

[0040] 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 rotary clamping mechanism for injection molds, characterized in that, include: A movable support (1) is fixedly connected to the top of the movable support (1), and a rotating disk (3) is rotatably connected to the upper surface of the adjusting table (2). Two clamping components (4) are provided and are symmetrically arranged on the upper surface of the rotating disk (3); and The drive assembly (5) and the gear ring (6) are provided, wherein the drive assembly (5) is fixedly mounted on the adjustment table (2), and the gear ring (6) is fixedly mounted on the inner wall of the rotating disk (3). The top outer wall of the drive assembly (5) is movably connected to the outer wall of the gear ring (6).

2. The rotary clamping mechanism for injection molds according to claim 1, characterized in that, The movable support (1) includes a base plate (101), a plurality of movable wheels (102) are uniformly fixedly connected to the lower surface of the base plate (101), a pusher (103) is fixedly connected to one side of the base plate (101), and a first hydraulic cylinder (104) is fixedly connected to the upper surface of the base plate (101). The output end of the first hydraulic cylinder (104) is fixedly connected to the lower surface of the adjustment platform (2).

3. The rotary clamping mechanism for injection molds according to claim 1, characterized in that, The clamping assembly (4) includes a second hydraulic cylinder (401) fixedly connected to the upper surface of the rotary disk (3). The output end of the second hydraulic cylinder (401) is fixedly connected to a support plate (402). A second motor (403) is fixedly connected to one side of the support plate (402). The output end of the second motor (403) passes through the support plate (402) and is fixedly connected to a reverse screw (404). The end of the reverse screw (404) away from the second motor (403) is rotatably connected to the inner wall of the support plate (402). A clamping plate (405) is symmetrically threaded onto the outer wall of the reverse screw (404).

4. A rotary clamping mechanism for injection molds according to claim 2, characterized in that, The adjustment platform (2) includes a rectangular platform (201) fixedly connected to the output end of the first hydraulic cylinder (104). A first motor (202) is fixedly connected to one side of the rectangular platform (201). A threaded rod (203) is fixedly connected to the output end of the first motor (202) through the rectangular platform (201). The end of the threaded rod (203) away from the first motor (202) is rotatably connected to the inner wall of the rectangular platform (201). A movable plate (204) is threadedly connected to the outer wall of the threaded rod (203). The outer wall of the movable plate (204) is slidably connected to the inner wall of the rectangular platform (201). The upper surface of the movable plate (204) is rotatably connected to the bottom of the rotating disk (3).

5. A rotary clamping mechanism for injection molds according to claim 3, characterized in that, The upper surface of the rotating disk (3) is uniformly fixedly connected with a plurality of conduits (9), and the inner wall of the conduits (9) is slidably connected with guide rods (10), and the upper end face of the guide rods (10) is fixedly connected to the lower surface of the support plate (402).

6. A rotary clamping mechanism for injection molds according to claim 4, characterized in that, The drive assembly (5) includes a third motor (501) fixedly connected to the inner wall of the movable plate (204). The output end of the third motor (501) is fixedly connected to a gear (502). The gear (502) is located inside the rotating disk (3), and the outer wall of the gear (502) meshes with the outer wall of the gear ring (6).

7. A rotary clamping mechanism for injection molds according to claim 4, characterized in that, The upper surface of the movable plate (204) is uniformly provided with mounting holes (7), and the inside of the mounting holes (7) is provided with ball bearings (8), the top of the ball bearings (8) is in contact with the lower surface of the rotating disk (3).