Mold clamp for injection molding machine

By designing a mold fixture for injection molding machines with a flipping and clamping mechanism, the problems of uneven cooling and inconvenient part removal caused by the inability of traditional mold fixtures to flip are solved, achieving efficient cooling and convenient demolding of the mold.

CN224527832UActive Publication Date: 2026-07-21HUBEI XINGFENG PLASTIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI XINGFENG PLASTIC CO LTD
Filing Date
2025-09-01
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional injection molding machine mold clamps have a simple structure and single function. They cannot be flipped, which leads to uneven flow of coolant, causing warping and deformation of the product, and making it inconvenient to remove the part.

Method used

A mold clamping fixture for injection molding machines was designed, which includes a flipping mechanism and a clamping mechanism. The mold flipping and clamping are achieved by the cylinder driving the sliding seat and the gear rack meshing, which improves cooling efficiency and demolding convenience.

Benefits of technology

It enables mold flipping and clamping functions, solves the warping and deformation problem caused by uneven coolant flow, and improves cooling efficiency and ease of part removal.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to injection molding machine mould field, specifically is a kind of mould clamp for injection molding machine, including processing station, the top of processing station is fixedly connected with first sliding rail, the surface of first sliding rail is slidably connected with sliding seat, the top of sliding seat is provided with turnover mechanism;Second cylinder can be regarded as the driving source of turnover mechanism in the utility model, second cylinder can push transmission block, transmission block slides along second sliding rail simultaneously can drive second rack bar to displace, rotating seat in turnover mechanism is connected with the bearing of support plate by rotating shaft, second rack bar moves simultaneously can drive second gear and rotating shaft to rotate along bearing, rotating shaft rotates simultaneously can drive rotating seat to rotate, the clamping mechanism of rotating seat top is mainly used to clamp and fix injection mould, rotating seat rotates can drive clamping mechanism and injection mould to overturn, to improve the efficiency of cooling and the convenience of demoulding and taking piece.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding machine molds, specifically a mold fixture for injection molding machines. Background Technology

[0002] Injection molding machines are one of the most crucial pieces of equipment in the plastics molding industry. They inject molten plastic into a mold cavity under high temperature and pressure, and after cooling, produce plastic products of the desired shape. They are widely used in the automotive, electronics, packaging, medical, and daily necessities industries. The injection molding mold is the core component in the injection molding process, used to inject molten plastic material into the mold cavity, and after cooling and solidification, produce plastic products of the desired shape.

[0003] However, most traditional injection molding machine mold clamps have a relatively simple structure and single function, and can only achieve simple clamping function. When cooling the injection molded parts, the mold cannot be rotated. The cooling water channel may cause uneven flow of coolant due to gravity, resulting in insufficient cooling of thick-walled areas or parts far from the water channel, causing warping deformation. Furthermore, molds that cannot be rotated need to be adjusted manually or by additional equipment (such as overhead cranes or tilting tables) when removing parts, which may prolong the mold change time, especially for large molds (such as car bumper molds). Utility Model Content

[0004] To overcome the shortcomings of existing technologies, most traditional injection molding machine mold clamps have relatively simple structures and single functions, and can only achieve simple clamping functions. When cooling the injection molded parts, the mold cannot be rotated, and the cooling water channel may cause uneven flow of coolant due to gravity, resulting in insufficient cooling of thick-walled areas or parts far from the water channel, causing problems such as warping and deformation. This utility model proposes a mold clamp for injection molding machines.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a mold fixture for injection molding machine, including a processing table, a first slide rail fixedly connected to the top of the processing table, a sliding seat slidably connected to the surface of the first slide rail, a first cylinder fixedly installed on the top of the processing table, the output end of the first cylinder fixedly connected to one side of the sliding seat, and a flipping mechanism provided on the top of the sliding seat. The flipping mechanism includes two support plates. One side of each support plate is fixedly connected to the top of the sliding seat. A bearing is fixedly connected to the inner cavity of the support plate. A rotating shaft is fixedly connected to the inner wall of the inner ring of the bearing. A rotating seat is fixedly connected to the surface of the rotating shaft. A clamping mechanism is provided on the top of the rotating seat.

[0006] Preferably, an extension plate is fixedly connected to one side of the support plate, and a first support member is fixedly connected to one side of the extension plate, with the surface of the first support member abutting against one side of the rotating seat.

[0007] Preferably, a second slide rail is fixedly connected to the top of the sliding seat, a transmission block is slidably connected to the surface of the second slide rail, and a second rack is fixedly connected to the top of the transmission block.

[0008] Preferably, a second gear is fixedly connected to the surface of the rotating shaft, the teeth of the second gear meshing with the teeth of the second rack, and a second cylinder is fixedly installed on one side of the sliding seat, the output end of the second cylinder being fixedly connected to one side of the transmission block.

[0009] Preferably, a second support member is fixedly connected to one side of the rotating seat, and one end of the second support member abuts against the top of the sliding seat.

[0010] Preferably, the clamping mechanism includes a motor, one side of which is fixedly mounted to the bottom of the rotating base. A first gear is fixedly connected to the output end of the motor. The first gear is located on the top of the rotating base. A first rack is provided on the top of the rotating base. There are two first racks, each L-shaped. The teeth of the first rack mesh with the teeth of the first gear. A mounting plate is fixedly connected to one side of the first rack, and a clamping plate is fixedly connected to one side of the mounting plate.

[0011] Preferably, a protective cover is fixedly connected to the top of the rotating seat, and a sliding groove is provided on one side of the protective cover. One side of the mounting plate is slidably connected to the inner wall of the sliding groove.

[0012] The advantages of this utility model are: In this invention, the second cylinder can be considered as the driving source of the flipping mechanism. The second cylinder can push the transmission block, and the transmission block can drive the second rack to move along the second slide rail. The rotating seat in the flipping mechanism is connected to the bearing of the support plate through the rotating shaft. Since the teeth of the second gear and the teeth of the second rack mesh with each other, the movement of the second rack can drive the second gear and the rotating shaft to rotate along the bearing. The rotation of the rotating shaft can drive the rotating seat to rotate. The clamping mechanism at the top of the rotating seat is mainly used to clamp and fix the injection mold. Therefore, when the rotating seat rotates, it can drive the clamping mechanism and the injection mold to flip, thereby improving the cooling efficiency and the convenience of demolding and removing parts. This solves the problem that most traditional injection molding machine mold clamps have relatively simple structures and single functions, and can only achieve simple clamping functions. When cooling the injection molded parts, the mold cannot be flipped, and the cooling water channel may cause uneven flow of coolant due to gravity, resulting in insufficient cooling of thick-walled areas or parts far from the water channel, causing warping and deformation. Attached Figure Description

[0013] 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.

[0014] Figure 1 This is a three-dimensional schematic diagram of the overall device of this utility model; Figure 2 This is a first perspective view of the sliding seat structure of this utility model; Figure 3 This is a second perspective view of the sliding seat structure of this utility model; Figure 4 This is a three-dimensional schematic diagram of the clamping mechanism of this utility model.

[0015] In the diagram: 1. Processing table; 2. First slide rail; 3. Sliding seat; 4. Tilting mechanism; 401. Support plate; 402. Bearing; 403. Rotating shaft; 404. Rotating seat; 5. Clamping mechanism; 501. Motor; 502. First gear; 503. First rack; 504. Mounting plate; 505. Clamping plate; 506. Protective cover; 507. Slide groove; 6. Extension plate; 7. First support member; 8. Second slide rail; 9. Transmission block; 10. Second rack; 11. Second gear; 12. First cylinder; 13. Second cylinder; 14. Second support member. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0017] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail. This application discloses a mold fixture for an injection molding machine. (Refer to...) Figures 1 to 3 A mold fixture for an injection molding machine includes a processing table 1, a first slide rail 2 fixedly connected to the top of the processing table 1, a sliding seat 3 slidably connected to the surface of the first slide rail 2, a first cylinder 12 fixedly installed on the top of the processing table 1, the output end of the first cylinder 12 fixedly connected to one side of the sliding seat 3, and a flipping mechanism 4 provided on the top of the sliding seat 3. The flipping mechanism 4 includes two support plates 401. One side of each support plate 401 is fixedly connected to the top of the sliding seat 3. A bearing 402 is fixedly connected to the inner cavity of the support plate 401. A rotating shaft 403 is fixedly connected to the inner wall of the inner ring of the bearing 402. A rotating seat 404 is fixedly connected to the surface of the rotating shaft 403. A clamping mechanism 5 is provided on the top of the rotating seat 404. A second slide rail 8 is fixedly connected to the top of the sliding seat 3. A transmission block 9 is slidably connected to the surface of the second slide rail 8. A second rack 10 is fixedly connected to the top of the transmission block 9. A second gear 11 is fixedly connected to the surface of the rotating shaft 403. The teeth of the second gear 11 mesh with the teeth of the second rack 10. A second cylinder 13 is fixedly installed on one side of the sliding seat 3. The output end of the second cylinder 13 is fixedly connected to one side of the transmission block 9. The processing table 1 can be regarded as an operating platform integrated with the injection molding machine. The injection molding machine uses a mold clamp via the sliding seat. 3 is slidably connected to the first slide rail 2 of the processing table 1. The first cylinder 12 can drive the clamp and mold away from the injection molding machine. The second cylinder 13 can be regarded as the driving source of the flipping mechanism 4. The second cylinder 13 can push the transmission block 9. While the transmission block 9 slides along the second slide rail 8, it can drive the second rack 10 to move together. The rotating seat 404 in the flipping mechanism 4 is connected to the bearing 402 of the support plate 401 through the rotating shaft 403. Since the teeth of the second gear 11 and the teeth of the second rack 10 mesh with each other, the second rack 10 can drive the second gear 11 and the rotating shaft 403 to rotate along the bearing 402 while moving. The rotating shaft 403 can drive the rotating seat 404 to rotate while rotating. The clamping mechanism 5 on the top of the rotating seat 404 is mainly used to clamp and fix the injection mold. Therefore, when the rotating seat 404 rotates, it can drive the clamping mechanism 5 and the injection mold to flip, thereby improving the cooling efficiency and the convenience of demolding and removing parts.

[0018] Reference Figure 2 An extension plate 6 is fixedly connected to one side of the support plate 401, and a first support member 7 is fixedly connected to one side of the extension plate 6. The surface of the first support member 7 abuts against one side of the rotating seat 404. The first support member 7 is connected to the support plate 401 through the extension plate 6. The first support member 7 can limit the vertical position of the rotating seat 404 and support the rotating seat 404.

[0019] Reference Figure 3 A second support member 14 is fixedly connected to one side of the rotating seat 404. One end of the second support member 14 abuts against the top of the sliding seat 3. Through the second support member 14, when the rotating seat 404 drives the clamping mechanism 5 and the injection mold to rotate, the second support member 14 can limit the rotation angle of the rotating seat 404, and the second support member 14 can provide auxiliary support for the rotated seat 404 after it has been rotated.

[0020] Reference Figure 4 The clamping mechanism 5 includes a motor 501, one side of which is fixedly mounted to the bottom of the rotating base 404. A first gear 502 is fixedly connected to the output end of the motor 501. The first gear 502 is located on the top of the rotating base 404. Two first racks 503 are located on the top of the rotating base 404. Both racks 503 are L-shaped, and their teeth mesh with the teeth of the first gear 502. A mounting plate 504 is fixedly connected to one side of each rack 503. A clamping plate 505 is fixedly connected to one side of 4. Through the clamping mechanism 5, the motor 501 can be regarded as the driving source of the clamping mechanism 5. The motor 501 can drive the first gear 502 to rotate. The first rack 503 is symmetrically and staggered, and the teeth of the first rack 503 mesh with the teeth of the first gear 502. When the first gear 502 rotates, it can drive the first racks 503 on both sides to move closer or further away from each other. The first racks 503 continuously moving closer to each other can drive the mounting plate 504 and the clamping plate 505 to clamp and fix the injection mold.

[0021] Reference Figure 3 A protective cover 506 is fixedly connected to the top of the rotating seat 404. A groove 507 is provided on one side of the protective cover 506. One side of the mounting plate 504 is slidably connected to the inner wall of the groove 507. Through the protective cover 506, the protective cover 506 can provide a certain degree of sealing protection for the first gear 502 and the first rack 503, so as to avoid the first gear 502 and the first rack 503 being exposed and damaged for a long time. In addition, the mounting plate 504 can slide along the groove 507 to improve the stability of the clamping plate 505.

[0022] Working principle: The processing table 1 can be regarded as an integrated operating platform with the injection molding machine. The injection molding machine uses a mold clamp to slide on the first slide rail 2 of the processing table 1 via a sliding seat 3. The first cylinder 12 can drive the clamp and mold away from the injection molding machine. The motor 501 can drive the first gear 502 to rotate. The first racks 503 are symmetrically and staggered, and the teeth of the first racks 503 mesh with the teeth of the first gear 502. When the first gear 502 rotates, it can drive the first racks 503 on both sides to move closer or further apart. The continuous movement of the first racks 503 closer together can drive the mounting plate 504 and the clamping plate 505 to clamp and fix the injection mold. The first support member 7 can limit the vertical position of the rotating seat 404 and support the rotating seat 404. The second cylinder 12 can drive the mold clamp and mold away from the injection molding machine. Cylinder 13 can be regarded as the driving source of the flipping mechanism 4. The second cylinder 13 can push the transmission block 9. While the transmission block 9 slides along the second slide rail 8, it can drive the second rack 10 to move together. The rotating seat 404 in the flipping mechanism 4 is connected to the bearing 402 of the support plate 401 through the rotating shaft 403. Since the teeth of the second gear 11 and the teeth of the second rack 10 mesh with each other, the second rack 10 can drive the second gear 11 and the rotating shaft 403 to rotate along the bearing 402 while moving. The rotating shaft 403 can drive the rotating seat 404 to rotate while rotating. The clamping mechanism 5 on the top of the rotating seat 404 is mainly used to clamp and fix the injection mold. Therefore, when the rotating seat 404 rotates, it can drive the clamping mechanism 5 and the injection mold to flip, thereby improving the cooling efficiency and the convenience of demolding and removing parts.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A mold fixture for an injection molding machine, comprising a processing table (1), characterized in that: The top of the processing table (1) is fixedly connected to a first slide rail (2), and a sliding seat (3) is slidably connected to the surface of the first slide rail (2). A first cylinder (12) is fixedly installed on the top of the processing table (1). The output end of the first cylinder (12) is fixedly connected to one side of the sliding seat (3). A flipping mechanism (4) is provided on the top of the sliding seat (3). The flipping mechanism (4) includes a support plate (401), and there are two support plates (401). One side of each support plate (401) is fixedly connected to the top of the sliding seat (3). A bearing (402) is fixedly connected to the inner cavity of the support plate (401). A rotating shaft (403) is fixedly connected to the inner wall of the inner ring of the bearing (402). A rotating seat (404) is fixedly connected to the surface of the rotating shaft (403). A clamping mechanism (5) is provided on the top of the rotating seat (404).

2. The mold fixture for an injection molding machine according to claim 1, characterized in that: An extension plate (6) is fixedly connected to one side of the support plate (401), and a first support member (7) is fixedly connected to one side of the extension plate (6). The surface of the first support member (7) abuts against one side of the rotating seat (404).

3. The mold fixture for an injection molding machine according to claim 1, characterized in that: The top of the sliding seat (3) is fixedly connected to a second slide rail (8), and a transmission block (9) is slidably connected to the surface of the second slide rail (8). The top of the transmission block (9) is fixedly connected to a second rack (10).

4. A mold fixture for an injection molding machine according to claim 3, characterized in that: The surface of the rotating shaft (403) is fixedly connected to a second gear (11), the teeth of the second gear (11) mesh with the teeth of the second rack (10), and a second cylinder (13) is fixedly installed on one side of the sliding seat (3), the output end of the second cylinder (13) is fixedly connected to one side of the transmission block (9).

5. A mold fixture for an injection molding machine according to claim 1, characterized in that: A second support member (14) is fixedly connected to one side of the rotating seat (404), and one end of the second support member (14) abuts against the top of the sliding seat (3).

6. A mold fixture for an injection molding machine according to claim 1, characterized in that: The clamping mechanism (5) includes a motor (501), one side of which is fixedly installed on the bottom of the rotating seat (404). The output end of the motor (501) is fixedly connected to a first gear (502). The first gear (502) is located on the top of the rotating seat (404). The top of the rotating seat (404) is provided with a first rack (503). There are two first racks (503). The first racks (503) are both L-shaped. The teeth of the first racks (503) mesh with the teeth of the first gear (502). One side of the first racks (503) is fixedly connected to a mounting plate (504). One side of the mounting plate (504) is fixedly connected to a clamping plate (505).

7. A mold fixture for an injection molding machine according to claim 6, characterized in that: The top of the rotating seat (404) is fixedly connected to a protective cover (506), and a groove (507) is provided on one side of the protective cover (506). One side of the mounting plate (504) is slidably connected to the inner wall of the groove (507).