Injection mold fitting structure

Abstract

The utility model discloses a kind of injection mold attachment structures, including attachment mechanism, attachment clamping mechanism and clamping auxiliary mechanism, the attachment mechanism includes upper die assembly and lower die assembly, the attachment clamping mechanism includes vertical frame and block, the clamping auxiliary mechanism includes driving ring and screw rod, attachment mechanism adopts the design of attachment rod and attachment pipe cooperation, the accurate alignment and preliminary positioning of upper and lower mold can be realized, attachment rod can be directional and extend into attachment pipe, ensure that mold keeps centring during clamping process, effectively prevent misplacement deviation, simplify alignment process, by the cooperation of inner rotary frame in rotary pipe and vertical frame and the block of attachment rod outer wall, form reliable mechanical locking, the positioning groove on vertical frame and the counter spring on block mutually cooperate, realize accurate positioning and firm fixation, significantly improve the stability after mold attachment.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and more specifically, to an injection mold bonding structure. Background Technology

[0002] Conventional bolt connections or simple clips are prone to loosening under high temperature and high pressure injection molding environments, causing slight displacement of the mold during operation. The guide mechanism in existing technology has limited precision, making it difficult for the upper and lower molds to be accurately aligned during mold closing, resulting in deviations that affect the dimensional accuracy and surface quality of injection molded products.

[0003] Traditional connection methods usually require multiple steps, such as tightening multiple bolts and adjusting multiple clips in sequence, which increases the labor intensity and operation time of workers. Many existing connection structures require the use of special tools for installation and disassembly. The preparation and use of tools increase the complexity of operation. Once the connection is completed, it is very difficult to fine-tune the fit accuracy, and it is often necessary to repeatedly disassemble and reassemble to achieve the desired effect.

[0004] After prolonged operation in high-temperature and high-pressure environments, connecting parts are prone to deformation or damage, leading to difficulties in disassembly. Traditional structures often lack auxiliary disassembly mechanisms, requiring operators to apply significant and difficult-to-control force, increasing safety risks. Existing structures typically employ a one-time complete disassembly method, lacking the possibility of step-by-step disassembly and failing to meet the needs of partial maintenance or adjustment. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides an injection mold bonding structure to solve the technical problems mentioned in the background art, such as instability after the upper mold and lower mold are bonded together, and the bonding connection is too complicated and difficult to disassemble.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an injection mold bonding structure, including a bonding mechanism, a bonding snap-fit ​​mechanism, and a snap-fit ​​auxiliary mechanism. The bonding mechanism includes an upper mold assembly and a lower mold assembly, which are slidably arranged relative to each other. A bonding rod is fixedly installed on both sides of the upper mold assembly, and a bonding tube is fixedly installed on both sides of the lower mold assembly. One end of the bonding rod can be directionally inserted into the bonding tube, and a rotating snap-fit ​​tube is installed at one end of the bonding tube for limiting rotation. The bonding snap-fit ​​mechanism includes a vertical frame and a fitting block. An inner rotating frame is installed on the inner wall of the snap-fit ​​tube, and multiple sets of vertical frames are installed at the bottom end of the inner rotating frame. The fitting block is installed on the outer wall of the bonding rod. The rotation of the snap-fit ​​tube causes the vertical frame on the inner rotating frame to rotate and embed into the fitting block, thereby fixing the bonding rod inside the bonding tube.

[0009] The present invention is further configured such that the snap-fit ​​auxiliary mechanism includes a drive ring and a screw rod. The drive ring is installed at the bottom end of the side wall of the rotating snap-fit ​​tube, and the screw rod is fixedly installed on the side wall of the fitting tube. A return spring is fitted on the screw rod, and a rotating block is rotatably and slidably installed on the screw rod. One end of the rotating block is connected to the return spring, and the top end of the rotating block is connected to the bottom end of the drive ring.

[0010] The present invention is further configured such that first side plates are installed on both sides of the upper mold assembly, and the bonding rod is fixedly installed on the first side plates. The first side plates are installed on both sides of the upper mold assembly to provide fixed support for the bonding rod and enhance the structural stability.

[0011] The present invention is further configured such that second side plates are installed on both sides of the lower mold assembly, and the bonding tube is fixedly installed on the second side plates. The second side plates are installed on both sides of the lower mold assembly to provide an installation base for the bonding tube and ensure the symmetry and balance of the bonding system.

[0012] The present invention is further configured such that positioning grooves are provided at the top and bottom ends of the vertical frame, and compression springs are installed at the top and bottom ends of the fitting block, and one end of the compression spring can extend into the positioning groove to fix the vertical frame and the fitting block relative to each other.

[0013] The present invention is further configured such that a connecting plate is installed at the bottom end of the side wall of the bonding tube, and the connecting plate is fixedly installed on one end face of the second side plate. The connecting plate is fixedly installed at the bottom end of the side wall of the bonding tube and the end face of the second side plate, thereby enhancing the connection strength between the bonding tube and the lower mold assembly.

[0014] The present invention is further configured such that an inner retaining ring is installed on the inner wall of the bonding tube, and a push-out spring is installed on the outer wall of the bonding rod, and one end of the push-out spring can contact the bottom end of the inner retaining ring. The push-out spring provides elastic separation force and improves work efficiency.

[0015] The present invention is further configured such that the outer wall of the fitting tube is threadedly connected to a threaded tube, and a linkage block is installed on the outer wall of the threaded tube. Multiple linkage blocks can be embedded in multiple rotating blocks respectively, so that the rotating tube can rotate in an directional manner.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides an injection mold fitting structure, which has the following beneficial effects:

[0018] This utility model is equipped with a bonding mechanism, which adopts a design of bonding rod and bonding tube to achieve precise alignment and preliminary positioning of upper and lower molds. The bonding rod can be directionally extended into the bonding tube to ensure that the mold remains centered during the mold closing process, effectively preventing misalignment and displacement, simplifying the alignment process, improving the accuracy and efficiency of mold bonding, and solving the problem of inaccurate alignment of traditional molds.

[0019] This utility model is equipped with a bonding and snapping mechanism. The inner rotating frame and vertical frame inside the rotating tube cooperate with the fitting block on the outer wall of the bonding rod to form a reliable mechanical lock. The positioning groove on the vertical frame and the compression spring on the fitting block cooperate with each other to achieve precise positioning and firm fixation. This significantly improves the stability of the mold after bonding, solves the loosening problem that may occur in traditional molds during high-pressure injection molding, and ensures the product molding quality.

[0020] This utility model is equipped with a snap-fit ​​auxiliary mechanism, which adopts a combination design of driving ring, screw rod and return spring to realize convenient operation and precise control of the rotating snap-fit ​​tube. The design of threaded tube and linkage block further enhances the accuracy of rotation positioning, greatly simplifies the locking and unlocking operation of mold, reduces the difficulty of operation and improves work efficiency. At the same time, the design of ejection spring provides auxiliary force when the mold is separated, making the disassembly process easier and more convenient, and effectively solving the problem of difficult disassembly of traditional molds. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state of this utility model;

[0022] Figure 2 This is a structural diagram illustrating the bonding method between the upper and lower molds in this utility model. Figure 1 ;

[0023] Figure 3 This is a structural diagram illustrating the bonding method between the upper and lower molds in this utility model. Figure 2 ;

[0024] Figure 4 This is a schematic diagram of the bonding and snapping mechanism and the snapping auxiliary mechanism in this utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the bonding and snapping mechanism and the snapping auxiliary mechanism in this utility model.

[0026] In the diagram: 1. Upper mold assembly; 2. Lower mold assembly; 3. Rotary clamping tube; 4. Vertical frame; 5. Insertion block; 6. Inner rotating frame; 7. Drive ring; 8. Screw-in rod; 9. Return spring; 10. Rotating block; 11. First side plate; 12. Second side plate; 13. Positioning groove; 14. Compression spring; 15. Connecting plate; 16. Inner retaining ring; 17. Push-out spring; 18. Threaded tube; 19. Linkage block; 101. Adhesive rod; 102. Adhesive tube. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5 A bonding structure for an injection mold includes a bonding mechanism, a bonding snap-fit ​​mechanism, and a snap-fit ​​auxiliary mechanism. The bonding mechanism includes an upper mold assembly 1 and a lower mold assembly 2, which are slidably arranged relative to each other. A bonding rod 101 is fixedly installed on both sides of the upper mold assembly 1, and a bonding tube 102 is fixedly installed on both sides of the lower mold assembly 2. One end of the bonding rod 101 can be directionally inserted into the bonding tube 102. A rotating snap-fit ​​tube 3 is installed at one end of the bonding tube 102 for limiting rotation. The bonding snap-fit ​​mechanism includes a vertical frame 4 and a fitting block 5. An inner rotating frame 6 is installed on the inner wall of the rotating snap-fit ​​tube 3. Multiple sets of vertical frames 4 are installed at the bottom end of the inner rotating frame 6. The fitting block 5 is installed on the outer wall of the bonding rod 101. The rotation of the rotating snap-fit ​​tube 3 causes the vertical frames 4 on the inner rotating frame 6 to rotate and embed into the fitting block 5, thereby fixing the bonding rod 101 inside the bonding tube 102.

[0031] In this embodiment, when the bonding mechanism is in operation, the bonding mechanism realizes the opening and closing of the mold through the relative sliding of the upper mold assembly 1 and the lower mold assembly 2. During use, bonding rods 101 are fixedly installed on the first side plates 11 on both sides of the upper mold assembly 1, and bonding tubes 102 are fixedly installed on the second side plates 12 on both sides of the lower mold assembly 2. When the upper mold assembly 1 moves downward, the bonding rods 101 extend into the bonding tubes 102 in a directional manner to realize the initial alignment and positioning of the upper and lower molds. The cooperative design of the bonding rods 101 and the bonding tubes 102 ensures the precise alignment of the mold during the mold closing process and prevents misalignment. When the bonding and snapping mechanism is in operation, the bonding and snapping mechanism achieves the fixing and locking of the mold through the cooperation of the vertical frame 4 and the insert block 5. When the bonding rod 101 extends into the bonding tube 102, the rotating snapping tube 3 starts to rotate, driving the inner rotating frame 6 on the inner wall to rotate. The multiple sets of vertical frames 4 installed at the bottom of the inner rotating frame 6 rotate accordingly and are embedded in the insert block 5 on the outer wall of the bonding rod 101. The positioning grooves 13 at the top and bottom of the vertical frame 4 cooperate with the compression springs 14 on the insert block 5. When the compression springs 14 extend into the positioning grooves 13, a precise positioning lock is formed, so that the bonding rod 101 is firmly fixed in the bonding tube 102, ensuring that the upper and lower molds are tightly bonded.

[0032] The snap-fit ​​auxiliary mechanism includes a drive ring 7 and a screw rod 8. The drive ring 7 is installed at the bottom end of the side wall of the snap-fit ​​tube. The screw rod 8 is fixedly installed on the side wall of the fitting tube 102. A return spring 9 is fitted on the screw rod 8. A rotating block 10 is rotatably and slidably installed on the screw rod 8. One end of the rotating block 10 is connected to the return spring 9, and the top end of the rotating block 10 is connected to the bottom end of the drive ring 7.

[0033] When the locking auxiliary mechanism is in operation, the locking auxiliary mechanism enhances the reliability of locking through the synergistic effect of the driving ring 7 and the locking rod 8. During operation, the driving ring 7 at the bottom of the side wall of the rotating locking tube 3 is connected to the rotating block 10 on the locking rod 8. When the driving ring 7 is rotated, the rotating block 10 slides on the locking rod 8, pulls open the return spring 9, and generates an elastic reaction force. Through the elastic potential energy stored in the return spring 9, a rotational force is provided when unlocking is required, which facilitates disassembly. By adjusting the threaded tube 18 connected to the threaded connection on the outer wall of the fitting tube 102, the linkage block 19 on its outer wall is respectively embedded into multiple rotating blocks 10, thereby realizing the directional rotation of the rotating locking tube 3.

[0034] Please see Figures 1-5As a supplementary embodiment of the injection mold bonding structure for the bonding mechanism, bonding snap-fit ​​mechanism, and snap-fit ​​auxiliary mechanism: First side plates 11 are installed on both sides of the upper mold assembly 1, and bonding rods 101 are fixedly installed on the first side plates 11. Second side plates 12 are installed on both sides of the lower mold assembly 2, and bonding tubes 102 are fixedly installed on the second side plates 12. Positioning grooves 13 are provided at the top and bottom ends of the vertical frame 4. Compression springs 14 are installed at the top and bottom ends of the sleeve block 5, and one end of the compression spring 14 can extend into the positioning groove 13 to allow the vertical frame 4 and the sleeve block 5 to... The insert 5 is relatively fixed. A connecting plate 15 is installed at the bottom end of the side wall of the fitting tube 102, and the connecting plate 15 is fixedly installed on one end face of the second side plate 12. An inner retaining ring 16 is installed on the inner wall of the fitting tube 102. A push-out spring 17 is installed on the outer wall of the fitting rod 101, and one end of the push-out spring 17 can contact the bottom end of the inner retaining ring 16. A threaded tube 18 is threadedly connected to the outer wall of the fitting tube 102. A linkage block 19 is installed on the outer wall of the threaded tube 18. Multiple linkage blocks 19 can be embedded into multiple rotating blocks 10 respectively, so that the rotating clamp tube 3 rotates in an orientation.

[0035] More specifically, firstly, the upper mold assembly 1 and the lower mold assembly 2 are in a separated state. When the mold closing begins, the upper mold assembly 1 moves downward, causing the bonding rod 101 to extend into the bonding tube 102 of the lower mold assembly 2 in a directional manner, thus achieving initial alignment. Next, the operating ring 7 rotates the rotating tube 3, and the vertical frame 4 on the inner rotating frame 6 rotates and embeds into the sleeve block 5. At the same time, the pressure spring 14 on the sleeve block 5 extends into the positioning groove 13 of the vertical frame 4 to form a mechanical lock. During this process, the rotating block 10 slides on the locking rod 8, pulls open the return spring 9, and stores elastic energy. The push-out spring 17 on the outer wall of the bonding rod 101 contacts the inner fixing ring 16 on the inner wall of the bonding tube 102, providing auxiliary force for subsequent separation. When it is necessary to adjust the locking accuracy, the rotation of the rotating tube 3 can be precisely controlled by the threaded tube 18 and the linkage block 19 system. When unlocking, the operating ring 7 is reversed. With the assistance of the return spring 9, the vertical frame 4 disengages from the sleeve block 5. At the same time, the push-out spring 17 provides a thrust to assist the bonding rod 101 in disengaging from the bonding tube 102, completing the separation of the mold. This ensures the precise bonding and stable locking of the mold during the injection molding process, while also ensuring the convenience and reliability of the operation.

[0036] In summary, during the use or operation of the overall equipment: when the bonding mechanism is required to operate, the bonding mechanism achieves the opening and closing of the mold through the relative sliding of the upper mold assembly 1 and the lower mold assembly 2. During use, bonding rods 101 are fixedly installed on the first side plates 11 on both sides of the upper mold assembly 1, and bonding tubes 102 are fixedly installed on the second side plates 12 on both sides of the lower mold assembly 2. When the upper mold assembly 1 moves downward, the bonding rods 101 extend into the bonding tubes 102 in a directional manner to achieve the initial alignment and positioning of the upper and lower molds. The cooperative design of the bonding rods 101 and the bonding tubes 102 ensures the precise alignment of the mold during the mold closing process and prevents misalignment.

[0037] When the bonding and snapping mechanism is in operation, the bonding and snapping mechanism achieves the fixing and locking of the mold through the cooperation of the vertical frame 4 and the insert block 5. When the bonding rod 101 extends into the bonding tube 102, the rotating snapping tube 3 starts to rotate, driving the inner rotating frame 6 on the inner wall to rotate. The multiple sets of vertical frames 4 installed at the bottom of the inner rotating frame 6 rotate accordingly and are embedded in the insert block 5 on the outer wall of the bonding rod 101. The positioning grooves 13 at the top and bottom of the vertical frame 4 cooperate with the compression springs 14 on the insert block 5. When the compression springs 14 extend into the positioning grooves 13, a precise positioning lock is formed, so that the bonding rod 101 is firmly fixed in the bonding tube 102, ensuring that the upper and lower molds are tightly bonded.

[0038] When the locking auxiliary mechanism is in operation, the locking auxiliary mechanism enhances the reliability of locking through the synergistic effect of the driving ring 7 and the locking rod 8. During operation, the driving ring 7 at the bottom of the side wall of the rotating locking tube 3 is connected to the rotating block 10 on the locking rod 8. When the driving ring 7 is rotated, the rotating block 10 slides on the locking rod 8, pulls open the return spring 9, and generates an elastic reaction force. Through the elastic potential energy stored in the return spring 9, a rotational force is provided when unlocking is required, which facilitates disassembly. By adjusting the threaded tube 18 connected to the threaded connection on the outer wall of the fitting tube 102, the linkage block 19 on its outer wall is respectively embedded into multiple rotating blocks 10, thereby realizing the directional rotation of the rotating locking tube 3.

[0039] First, the upper mold assembly 1 and the lower mold assembly 2 are in a separated state. When the mold closing begins, the upper mold assembly 1 moves downward, causing the bonding rod 101 to extend into the bonding tube 102 of the lower mold assembly 2 in a directional manner, thus achieving initial alignment. Next, the operating ring 7 rotates the rotating tube 3, and the vertical frame 4 on the inner rotating frame 6 rotates and embeds into the sleeve block 5. At the same time, the pressure spring 14 on the sleeve block 5 extends into the positioning groove 13 of the vertical frame 4 to form a mechanical lock. During this process, the rotating block 10 slides on the locking rod 8, pulls open the return spring 9, and stores elastic energy. The push-out spring 17 on the outer wall of the bonding rod 101 contacts the inner fixing ring 16 on the inner wall of the bonding tube 102, providing auxiliary force for subsequent separation. When it is necessary to adjust the locking accuracy, the rotation of the rotating tube 3 can be precisely controlled by the threaded tube 18 and the linkage block 19 system. When unlocking, the operating ring 7 is reversed. With the assistance of the return spring 9, the vertical frame 4 disengages from the sleeve block 5. At the same time, the push-out spring 17 provides a thrust to assist the bonding rod 101 in disengaging from the bonding tube 102, completing the separation of the mold. This ensures the precise bonding and stable locking of the mold during the injection molding process, while also ensuring the convenience and reliability of the operation.

[0040] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

[0041] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise explicitly described, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their specific circuit structures will not be elaborated here. In all the solutions mentioned above, those involving motors can be used with a reducer if necessary. The connection structure and working principle between the motor and the reducer are existing, well-known technologies, and will not be elaborated here.

Claims

1. A bonding structure for an injection mold, comprising a bonding mechanism, a bonding snap-fit ​​mechanism, and a snap-fit ​​auxiliary mechanism, characterized in that: The bonding mechanism includes an upper mold assembly (1) and a lower mold assembly (2). The upper mold assembly (1) and the lower mold assembly (2) are slidably arranged relative to each other. The bonding rod (101) is fixedly installed on both sides of the upper mold assembly (1), and the bonding tube (102) is fixedly installed on both sides of the lower mold assembly (2). One end of the bonding rod (101) can be directionally inserted into the bonding tube (102). One end of the bonding tube (102) is limited to a rotating mounting tube (3). The bonding and snapping mechanism includes a vertical frame (4) and a fitting block (5). An inner rotating frame (6) is installed on the inner wall of the rotating tube (3). Multiple sets of vertical frames (4) are installed at the bottom end of the inner rotating frame (6). The fitting block (5) is installed on the outer wall of the bonding rod (101). The rotation of the rotating tube (3) causes the vertical frame (4) on the inner rotating frame (6) to rotate and embed into the fitting block (5), so that the bonding rod (101) is fixed in the bonding tube (102).

2. The injection mold bonding structure according to claim 1, characterized in that: The snap-fit ​​auxiliary mechanism includes a drive ring (7) and a screw rod (8). The drive ring (7) is installed at the bottom end of the side wall of the snap-fit ​​tube. The screw rod (8) is fixedly installed on the side wall of the fitting tube (102). A reset spring (9) is fitted on the screw rod (8). A rotating block (10) is rotatably and slidably installed on the screw rod (8). One end of the rotating block (10) is connected to the reset spring (9). The top end of the rotating block (10) is connected to the bottom end of the drive ring (7).

3. The injection mold bonding structure according to claim 1, characterized in that: The upper mold assembly (1) is provided with first side plates (11) on both sides, and the fitting rod (101) is fixedly installed on the first side plates (11).

4. The injection mold bonding structure according to claim 1, characterized in that: The lower mold assembly (2) is provided with second side plates (12) on both sides, and the fitting tube (102) is fixedly installed on the second side plates (12).

5. The injection mold bonding structure according to claim 1, characterized in that: The vertical frame (4) has a positioning groove (13) at the top and bottom. The top and bottom of the fitting block (5) are equipped with a compression spring (14), and one end of the compression spring (14) can be inserted into the positioning groove (13) to fix the vertical frame (4) and the fitting block (5) relative to each other.

6. The injection mold bonding structure according to claim 1, characterized in that: A connecting plate (15) is installed at the bottom end of the side wall of the fitting tube (102), and the connecting plate (15) is fixedly installed on one end face of the second side plate (12).

7. The injection mold bonding structure according to claim 1, characterized in that: The inner wall of the fitting tube (102) is provided with an inner retaining ring (16), and the outer wall of the fitting rod (101) is provided with a push-out spring (17), and one end of the push-out spring (17) can contact the bottom end of the inner retaining ring (16).

8. The injection mold bonding structure according to claim 2, characterized in that: The outer wall of the fitting tube (102) is threaded with a threaded tube (18), and a linkage block (19) is installed on the outer wall of the threaded tube (18). Multiple linkage blocks (19) can be embedded into multiple rotating blocks (10) respectively, so that the rotating tube (3) rotates in an orientation.

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