A quick dismounting structure for large molds

Abstract

The utility model discloses a quick dismounting structure for large -scale mould, it includes mould main part subassembly, positioning locking subassembly, guide component and drive unlocking subassembly. Mould main part subassembly is butt joint through the connecting flange, and positioning locking subassembly sets up in the inside of connecting flange, and guide component is fixed in mould edge, and drive unlocking subassembly is transmission connection with positioning locking subassembly to control locking or unlocking state. Positioning locking subassembly adopts locking wedge and reset spring cooperation, and guide component realizes accurate alignment through guide column and sleeve, and drive unlocking subassembly realizes automation operation with motor, gear and rack. In addition, the height of auxiliary support platform can be adjusted to adapt to different equipment demand. The present application can improve the dismounting efficiency of large -scale mould significantly, reduce manual operation, enhance positioning accuracy and use convenience.

Description

Technical Field

[0001] This utility model belongs to the field of mold manufacturing and mechanical assembly technology, specifically a quick assembly and disassembly structure for large molds. Background Technology

[0002] With the continuous development of the mold manufacturing industry, large molds are increasingly widely used in the automotive, aerospace, and heavy machinery industries. However, in actual production, the efficiency of disassembling and assembling large molds directly affects equipment maintenance cycles and overall production efficiency. Currently, large molds on the market generally have complex structures, cumbersome disassembly and assembly processes, require a large amount of manual operation, and are time-consuming, seriously affecting production efficiency and equipment utilization.

[0003] While existing technologies have proposed some designs for quick mold change or positioning optimization, significant shortcomings remain. For example, patent CN104120229B discloses a mold that achieves rapid replacement through quick mold changing. Although this design improves the ease of replacement for small and medium-sized molds to some extent, for large molds, due to their large size and weight, simple detachable connections alone are insufficient for efficient and safe rapid assembly and disassembly. Furthermore, this solution does not fully consider the impact of frequent assembly and disassembly on the positioning accuracy of large molds, easily leading to assembly errors and affecting product quality. Another patent, CN104107862B, proposes a mold that achieves automatic positioning of the stamped workpiece through the interaction between the inclined push block and the sliding positioning block during the downward movement of the punch. This structure has certain advantages in improving positioning accuracy, but its core lies in positioning control during the stamping process and does not address the issue of rapid assembly and disassembly of the mold body. Therefore, when facing the need for frequent replacement or maintenance of large molds, this structure still relies on traditional bolt fastening methods and cannot meet the actual requirements for rapid assembly and disassembly.

[0004] In summary, existing technologies still lack systematic solutions for rapid assembly and disassembly of large molds, particularly in addressing the demands for large-scale, high-precision, and high-efficiency assembly and disassembly. There is an urgent need for a rapid assembly and disassembly structure specifically designed for large molds to improve mold changeover efficiency, reduce manual labor intensity, and ensure assembly accuracy, thereby meeting the pressing needs of modern manufacturing for efficient and intelligent mold systems. Utility Model Content

[0005] The purpose of this utility model is to provide a quick assembly and disassembly structure for large molds. To achieve the above objective, this utility model is implemented according to the following technical solution:

[0006] This utility model includes a mold body assembly, a positioning and locking assembly, a guide assembly, and a drive and unlocking assembly. The positioning and locking assembly is disposed at the connection part of the mold body assembly, the guide assembly is disposed at the edge of the mold body assembly, and the drive and unlocking assembly is connected to the positioning and locking assembly and controls its unlocking or locking state.

[0007] Furthermore, the main mold assembly includes an upper mold base, a lower mold base, a connecting flange, and positioning pin holes. The upper mold base and the lower mold base are connected via the connecting flange. The positioning pin holes are evenly distributed around the connecting flange. The positioning locking assembly is installed inside the connecting flange. The guide assembly is fixed to the outer edges of the upper mold base and the lower mold base. The drive unlocking assembly is connected to the positioning locking assembly via a transmission mechanism.

[0008] Preferably, the positioning and locking assembly includes a locking wedge, a return spring, and a locking groove. The locking wedge is elastically connected to the connecting flange via the return spring. The locking groove is located at a corresponding position on the connecting flange. The locking wedge can slide in a predetermined direction under the action of the driving unlocking assembly to achieve unlocking or locking.

[0009] Furthermore, the guiding assembly includes a guide post, a guide sleeve, and a buffer pad. The guide post is fixed to the bottom edge of the upper mold base, and the guide sleeve is fixed to the top edge of the lower mold base. The guide post and the guide sleeve are clearance-fitted. The buffer pad is disposed at the end of the guide post to reduce impact force. The drive unlocking assembly includes an unlocking motor, a transmission gear, and an unlocking rack. The unlocking motor is fixed to the outside of the upper mold base. The transmission gear is fixedly connected to the output shaft of the unlocking motor. The unlocking rack meshes with the transmission gear and is drivenly connected to the locking wedge block through a connecting rod.

[0010] As an improvement, an auxiliary support platform is provided below the main mold assembly. The upper surface of the auxiliary support platform is in contact with the bottom of the lower mold base. The bottom of the auxiliary support platform is provided with adjusting bolts to adjust the support height to adapt to the installation requirements of different equipment. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a partial enlarged view of the positioning and locking component of this utility model.

[0013] Figure 3 This is a schematic diagram of the transmission structure of the drive unlocking component of this utility model.

[0014] In the diagram: 1. Mold main body assembly; 2. Upper mold base; 3. Lower mold base; 4. Connecting flange; 5. Locating pin hole; 6. Locating locking assembly; 7. Locking wedge block; 8. Return spring; 9. Locking groove; 10. Guide assembly; 11. Guide post; 12. Guide sleeve; 13. Buffer pad; 14. Drive unlocking assembly; 15. Unlocking motor; 16. Transmission gear; 17. Unlocking rack; 18. Connecting rod; 19. Auxiliary support platform; 20. Adjusting bolt. Detailed Implementation

[0015] This utility model provides a quick assembly and disassembly structure for large molds, the specific implementation of which is combined with Figures 1 to 3 The accompanying reference numerals are explained in detail.

[0016] This quick-assembly and disassembly structure includes a mold body assembly 1, a positioning and locking assembly 6, a guiding assembly 10, and a drive and unlocking assembly 14. These components work together to achieve efficient mold assembly and disassembly. In practical applications, this structure is suitable for industrial scenarios requiring frequent mold changes, such as automotive parts manufacturing or home appliance casing production.

[0017] First, the main mold assembly 1 is the core of the entire device, consisting of an upper mold base 2, a lower mold base 3, a connecting flange 4, and locating pin holes 5. The upper mold base 2 and lower mold base 3 are connected via the connecting flange 4 to form a complete mold unit. To ensure precise positioning, multiple locating pin holes 5 are evenly distributed around the connecting flange 4. These pin holes cooperate with external equipment or other mold components to ensure the accuracy and stability of mold installation. Furthermore, a positioning and locking assembly 6 is located inside the connecting flange 4 to securely lock the upper mold base 2 and lower mold base 3 together. The positioning and locking assembly 6 further includes a locking wedge 7, a return spring 8, and a locking groove 9. The locking wedge 7 is elastically connected to the connecting flange 4 via the return spring 8 and can slide in a predetermined direction under the action of the driving unlocking assembly 14, thereby achieving unlocking or locking functions. When the upper mold base 2 moves downward, the locking wedge 7 is pressed into the connecting flange 4 because it is inclined. The upper mold base 2 continues to move downward, causing the locking wedge 7 to slide into the locking groove 9, and the mold body assembly 1 is firmly locked. When the unlocking operation is started, the locking wedge 7 is removed from the locking groove 9, allowing the mold to be separated.

[0018] The guide assembly 10 is located at the edge of the mold body assembly 1, and its main function is to provide precise alignment and guidance during mold assembly and disassembly. Specifically, the guide assembly 10 includes a guide post 11, a guide sleeve 12, and a buffer pad 13. The guide post 11 is fixed to the bottom edge of the upper mold base 2, while the guide sleeve 12 is fixed to the top edge of the lower mold base 3. The guide post 11 and the guide sleeve 12 are designed with a clearance fit, which allows for a certain range of motion while effectively limiting deviation, ensuring that the mold does not shift during docking. At the same time, the buffer pad 13 is located at the end of the guide post 11 to reduce the impact force generated during mold docking or separation, thereby extending the service life of the equipment and improving operational safety.

[0019] The drive unlocking assembly 14 is a key component for enabling rapid mold assembly and disassembly. It is connected to the positioning and locking assembly 6 via a transmission mechanism, controlling the sliding state of the locking wedge 7. The drive unlocking assembly 14 includes an unlocking motor 15, a transmission gear 16, an unlocking rack 17, and a connecting rod 18. The unlocking motor 15 is fixed to the outside of the upper mold base 2, and its output shaft is fixedly connected to the transmission gear 16. The transmission gear 16 meshes with the unlocking rack 17. When the unlocking motor 15 operates, the transmission gear 16 drives the unlocking rack 17 to move. The unlocking rack 17 is connected to the locking wedge 7 via the connecting rod 18, thereby pushing the locking wedge 7 to slide in a predetermined direction. When the unlocking motor 15 rotates in the forward direction, the unlocking rack 17 pulls the connecting rod 18, causing the locking wedge 7 to disengage from the locking groove 9, completing the unlocking action. Conversely, when the unlocking motor 15 rotates in the reverse direction, the unlocking rack 17 pushes the connecting rod 18 to separate from the locking wedge 7, allowing the locking wedge 7 to slide back into the locking groove 9 under the action of the return spring 8, thus achieving the locking function. This mechanical transmission method is not only easy to operate but also has high reliability and durability.

[0020] To accommodate the installation requirements of different equipment, an auxiliary support platform 19 is also provided below the main mold component 1. The upper surface of the auxiliary support platform 19 fits against the bottom of the lower mold base 3, providing additional support for the mold and preventing deformation or damage due to gravity. Adjusting bolts 20 are provided at the bottom of the auxiliary support platform 19. By adjusting the height of the adjusting bolts 20, the overall height of the auxiliary support platform 19 can be changed to meet the installation requirements of different equipment. For example, in some workshop environments, the ground may be tilted or the equipment base height may be inconsistent. In such cases, adjusting bolts 20 can easily solve these problems, ensuring that the mold is always level.

[0021] In actual operation, the operation process of this quick-assembly and disassembly structure is as follows: First, the upper mold base 2 and the lower mold base 3 are connected by the connecting flange 4, and the guide post 11 and guide sleeve 12 are used to achieve initial alignment. Next, the upper mold base 2 moves downward to push the locking wedge 7 into the locking groove 9, completing the mold locking operation. During this process, the return spring 8 plays an important auxiliary role, ensuring that the locking wedge 7 always maintains appropriate pressure and preventing loosening due to external vibration or other factors. When it is necessary to disassemble the mold, the unlocking motor 15 is activated to disengage the locking wedge 7 from the locking groove 9, thereby releasing the locking state. Subsequently, the upper mold base 2 and the lower mold base 3 can be easily separated, completing the mold disassembly process.

[0022] In summary, this utility model achieves rapid assembly and disassembly of large molds through the rational design of the structure and interrelationship of the mold main body component 1, positioning and locking component 6, guiding component 10, and driving and unlocking component 14. This structure is not only simple to operate and highly efficient, but also possesses excellent stability and reliability, significantly improving mold changeover speed in industrial production, reducing manual labor intensity, and minimizing the risk of equipment damage due to improper assembly or disassembly. Furthermore, the design of the auxiliary support platform 19 and adjusting bolts 20 further enhances the adaptability of this structure, enabling its widespread application in mold installation scenarios under various complex working conditions.

[0023] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick-assembly and disassembly structure for large molds, characterized in that: The mold body assembly includes a mold body assembly (1), a positioning and locking assembly (6), a guide assembly (10), and a drive and unlocking assembly (14). The positioning and locking assembly (6) is located at the connection part of the mold body assembly (1), the guide assembly (10) is located at the edge of the mold body assembly (1), and the drive and unlocking assembly (14) is connected to the positioning and locking assembly (6) in a transmission manner. The main mold assembly (1) includes an upper mold base (2), a lower mold base (3), a connecting flange (4), and positioning pin holes (5). The upper mold base (2) and the lower mold base (3) are connected through the connecting flange (4). The positioning pin holes (5) are evenly distributed around the connecting flange (4). The positioning locking assembly (6) is installed inside the connecting flange (4). The guide assembly (10) is fixed to the outer edges of the upper mold base (2) and the lower mold base (3). The drive unlocking assembly (14) is connected to the positioning locking assembly (6) through a transmission mechanism. The drive unlocking assembly (14) includes an unlocking motor (15), a transmission gear (16), and an unlocking rack (17). The unlocking motor (15) is fixed to the outside of the upper mold base (2). The transmission gear (16) is fixedly connected to the output shaft of the unlocking motor (15). The unlocking rack (17) is meshed with the transmission gear (16) and is connected to the locking wedge (7) via a connecting rod (18).

2. The quick assembly / disassembly structure for large molds according to claim 1, characterized in that: The positioning and locking assembly (6) includes a locking wedge (7), a return spring (8), and a locking groove (9). The locking wedge (7) is elastically connected to the connecting flange (4) through the return spring (8). The locking groove (9) is located at the corresponding position of the upper mold base (2) and the locking wedge (7). The locking wedge (7) can slide in a predetermined direction under the action of the driving unlocking assembly (14).

3. The quick assembly / disassembly structure for large molds according to claim 1, characterized in that: The guide assembly (10) includes a guide post (11), a guide sleeve (12), and a buffer pad (13). The guide post (11) is fixed to the bottom edge of the upper mold base (2), the guide sleeve (12) is fixed to the top edge of the lower mold base (3), the guide post (11) and the guide sleeve (12) are in clearance fit, and the buffer pad (13) is disposed at the end of the guide post (11).

4. The quick assembly / disassembly structure for large molds according to claim 1, characterized in that: An auxiliary support platform (19) is provided below the main mold assembly (1). The upper surface of the auxiliary support platform (19) is in contact with the bottom of the lower mold base (3). An adjusting bolt (20) is provided at the bottom of the auxiliary support platform (19).

5. The quick assembly / disassembly structure for large molds according to claim 2, characterized in that: The sliding direction of the locking wedge (7) is consistent with the inner and outer directions of the connecting flange (4). One end of the return spring (8) is connected to the locking wedge (7), and the other end is connected to the connecting flange (4).

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