Self-locking mold locking structure device

Abstract

The utility model discloses a self-locking mold locking structure device, and relates to the technical field of mold locking structures of molds. The mold changing device comprises a mold changing frame, a movable mold plate and a fixed mold plate, the fixed mold plate is fixedly connected to the mold changing frame, the movable mold plate is located on the front side of the fixed mold plate, three first fixing bases are fixedly connected to the surface of the front side of the fixed mold plate, and three second fixing bases are fixedly connected to the outer surface of the movable mold plate. The three second fixing seats are in one-to-one correspondence with the three first fixing seats, and lock hooks are arranged on the second fixing seats. According to the utility model, the locking hook is fixed between the two positioning blocks, so that the mold locking work between the movable mold plate and the fixed mold plate is realized, the self-locking mold locking between the movable mold plate and the fixed mold plate can be realized, the installation is convenient, the operation is simple, the mold locking is labor-saving and reliable, the mold locking stress is uniform, the processing quality of products is ensured, and the production efficiency is improved. And therefore, the practicability of the self-locking mold locking structure device is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of mold locking structure, and specifically relates to a self-locking mold locking structure device. Background Technology

[0002] EPP is a highly crystalline polymer with excellent shock resistance and strong recovery ability after deformation. It is extremely lightweight, which greatly reduces the weight of products while ensuring the strength of the object. Due to its superior performance, EPP is widely used in more and more fields, such as packaging materials for electronic products, bumpers and shock-absorbing cores for automobiles, and soles of sports shoes.

[0003] Therefore, EPP faces a huge market. EPP production is mainly completed by foam molding machines, and the precision requirements of the molds are high. Therefore, before the foam molding machine starts working, the mold needs to be fixed as a whole inside the fixed mold and the moving mold. During the operation of the foam molding machine, the mold is separated by the movement of the moving mold. When the mold is separated and after the mold is separated, the mold of the moving mold part needs to be fixed by a specific structure.

[0004] Most existing fixed mold moving and locking mechanisms rely on screws and nuts on the locking structure to lock the mold. Usually, after the mold changing frame is moved into place, the nuts need to be tightened manually to achieve the clamping and fixing of the mold. This is not only cumbersome, but also difficult to control the tightening force evenly when manually tightening the nuts. This can easily lead to problems such as mold skewing, air leakage, or uneven cavity pressure, which in turn affects the molding effect of the product and reduces the practicality of the locking structure. Utility Model Content

[0005] Most existing mold-changing and locking mechanisms rely on screws and nuts on the mold-locking structure for locking. Typically, after the mold-changing frame is in place, manual tightening of the nuts is required to secure the mold. This process is not only cumbersome, but also difficult to control the tightening force evenly during manual tightening, which can lead to mold misalignment, air leakage, or uneven cavity pressure, thus affecting the product's molding effect and reducing the practicality of the mold-locking structure. This invention proposes a self-locking mold-locking structure to overcome these technical problems in existing technologies.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a self-locking mold-locking structure device, comprising a mold-changing frame, a movable template, and a fixed template. The fixed template is fixedly connected to the mold-changing frame. The movable template is located in front of the fixed template. Three first fixing seats are fixedly connected to the front surface of the fixed template, and three second fixing seats are fixedly connected to the outer surface of the movable template. The three second fixing seats correspond one-to-one with the three first fixing seats. Locking hooks are provided on the second fixing seats. Multiple mold-locking mechanisms are provided on each of the first fixing seats. The mold-locking mechanisms cooperate with the locking hooks to realize the installation and fixation between the movable template and the fixed template, thereby completing the mold-locking work between the movable template and the fixed template. A linkage mechanism is provided on the mold-locking mechanism, which enables the mold-locking mechanisms on the three first fixing seats to perform mold-locking work simultaneously. A driving mechanism is provided on the front surface of the left first fixing seat, which is used to drive the mold-locking mechanism to work.

[0008] Furthermore, the driving mechanism includes three fixed rods, each corresponding to one of the three first fixed seats. A hydraulic cylinder is fixedly connected to the front surface of the first fixed seat on the left side. The telescopic end of the hydraulic cylinder is fixedly connected to the lower end of the fixed rod on the left side. Multiple sliding columns are fixedly sleeved on the outer surface of each fixed rod.

[0009] Furthermore, the locking mechanism includes two positioning blocks, both of which are fixedly connected to the front surface of the first fixed seat. The upper surface of each positioning block is provided with a sliding groove extending out of its lower surface. The two positioning blocks are slidably fitted onto the outer surface of the corresponding sliding column through the sliding groove.

[0010] Furthermore, two support blocks are fixedly connected to the front surface of the first fixed base. The two support blocks are slidably sleeved on the outer surface of the corresponding fixed rod. The upper surface of the positioning block is provided with a positioning groove extending from its lower surface. The positioning groove is "L" shaped. Locking blocks are fixedly connected to the outer surface of the sliding column. The locking blocks are slidably connected to the positioning groove. The locking blocks are "L" shaped and are adapted to the positioning groove.

[0011] Furthermore, the vertical block of the locking block is fixedly connected to the outer surface of the sliding column, and a mounting base is fixedly connected to the left side surface of the positioning block adjacent to the oil cylinder. Two limit switches are fixedly installed on the mounting base, and two induction coils are fixedly installed on the outer surface of the sliding column adjacent to the oil cylinder.

[0012] Furthermore, multiple connecting seats are fixedly connected to the outer surface of the second fixing seat near the fixing rod. The locking hook is fixedly connected to the outer surface of the connecting seat away from the second fixing seat. The locking hook is slidably connected between two corresponding positioning blocks. The locking hook is in the shape of a "C". The locking hook is slidably connected to the corresponding locking block. The locking hook is adapted to the locking block.

[0013] Furthermore, the linkage mechanism includes two fixed plates, both of which are fixedly connected to the outer surface of the corresponding fixed rods. Each fixed plate is fixedly connected to a support spring, which is slidably sleeved on the outer surface of the fixed rod. Push blocks are fixedly connected to the upper end of the left fixed rod and the right end of the upper fixed rod.

[0014] Furthermore, wheels are fixedly connected to the left end of the upper fixed rod and the upper end of the right fixed rod. The outer surface of the push block near the wheel is provided with an inner groove. The wheel is slidably connected between the inner walls of the front and rear sides of the inner groove. One side of the inner wall of the inner groove is inclined. The roller of the wheel is in contact with the inclined surface of the inner groove.

[0015] This utility model has the following beneficial effects:

[0016] This utility model uses a locking hook to fix between two positioning blocks, thereby realizing the locking operation between the moving template and the fixed template. It can achieve self-locking between the moving template and the fixed template, which is easy to install, simple to operate, labor-saving and reliable in locking, and uniform in force, thus ensuring the processing quality of the product and increasing the practicality of the self-locking mold locking structure device.

[0017] When the hydraulic cylinder is activated, the present invention can simultaneously drive three fixed rods to move, thereby simultaneously driving the locking blocks on the three fixed rods to lock the locking hook. This saves more energy and ensures that the locking blocks and locking hooks on the left, right and top sides cooperate to lock together, making the mold locking reliable and stable, and the mold force evenly distributed, thus ensuring the processing quality of the product. This increases the practicality of the self-locking mold locking structure device and also improves its energy efficiency.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the template structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the movable template structure of this utility model;

[0023] Figure 4 For the present utility model Figure 1 Enlarged view of point A;

[0024] Figure 5 For the present utility model Figure 2 Enlarged view of point C;

[0025] Figure 6 For the present utility model Figure 2 Enlarged view of point B;

[0026] Figure 7 This is a sectional view of the vertical section of the push block of this utility model;

[0027] Figure 8 This is a schematic diagram of the locking hook structure of this utility model.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Mold changing frame; 2. Moving template; 3. Fixed template; 4. First fixed seat; 5. Second fixed seat; 6. Fixed rod; 7. Hydraulic cylinder; 8. Induction coil; 9. Sliding column; 10. Support block; 11. Limit switch; 12. Positioning block; 13. Positioning slide groove; 14. Locking hook; 15. Connecting seat; 16. Locking block; 17. Supporting spring; 18. Fixed plate; 19. Pushing block; 20. Sliding groove; 21. Inner slide groove; 22. Wheel; 23. Mounting seat. Detailed Implementation

[0030] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0031] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0032] Please see Figures 1-8 As shown, this utility model is a self-locking mold-locking structure device, including a mold-changing frame 1, a movable template 2, and a fixed template 3. The fixed template 3 is fixedly connected to the mold-changing frame 1. The movable template 2 is located in front of the fixed template 3. Three first fixing seats 4 are fixedly connected to the front surface of the fixed template 3, and three second fixing seats 5 are fixedly connected to the outer surface of the movable template 2. The three second fixing seats 5 correspond one-to-one with the three first fixing seats 4. Locking hooks 14 are provided on the second fixing seats 5. Multiple mold-locking mechanisms are provided on each of the first fixing seats 4. The mold-locking mechanisms cooperate with the locking hooks 14 to realize the installation and fixation between the movable template 2 and the fixed template 3, so as to complete the mold-locking work between the movable template 2 and the fixed template 3. A linkage mechanism is provided on the mold-locking mechanism, which enables the mold-locking mechanisms on the three first fixing seats 4 to perform mold-locking work simultaneously. A driving mechanism is provided on the front surface of the left first fixing seat 4, which is used to drive the mold-locking mechanism to work.

[0033] In one embodiment, the driving mechanism includes three fixed rods 6, which correspond one-to-one with three first fixed seats 4. A hydraulic cylinder 7 is fixedly connected to the front surface of the first fixed seat 4 on the left side. The telescopic end of the hydraulic cylinder 7 is fixedly connected to the lower end of the fixed rod 6 on the left side. A plurality of sliding columns 9 are fixedly sleeved on the outer surface of each fixed rod 6.

[0034] In addition, in a specific application, the hydraulic cylinder 7 is activated, which drives the fixed rod 6 located on the left side to move up and down.

[0035] In one embodiment, the above-mentioned mold-locking mechanism includes two positioning blocks 12, both of which are fixedly connected to the front surface of the first fixed base 4. The upper surface of the positioning block 12 is provided with a sliding groove 20 extending out of its lower surface. The two positioning blocks 12 are slidably sleeved on the outer surface of the corresponding sliding column 9 through the sliding groove 20.

[0036] Two support blocks 10 are fixedly connected to the front surface of the first fixed base 4. The two support blocks 10 are slidably sleeved on the outer surface of the corresponding fixed rod 6. The upper surface of the positioning block 12 is provided with a positioning groove 13 extending out of its lower surface. The positioning groove 13 is in the shape of an "L". The outer surface of the sliding column 9 is fixedly connected with a locking block 16. The locking block 16 is slidably connected to the positioning groove 13. The locking block 16 is in the shape of an "L" and is adapted to the positioning groove 13.

[0037] The vertical block of the locking block 16 is fixedly connected to the outer surface of the sliding column 9. The left side surface of the positioning block 12 adjacent to the oil cylinder 7 is fixedly connected to the mounting base 23. Two limit switches 11 are fixedly installed on the mounting base 23. Two induction coils 8 are fixedly installed on the outer surface of the sliding column 9 adjacent to the oil cylinder 7.

[0038] Multiple connecting seats 15 are fixedly connected to the outer surface of the second fixing seat 5 near the fixing rod 6. The locking hook 14 is fixedly connected to the outer surface of the connecting seat 15 away from the second fixing seat 5. The locking hook 14 is slidably connected between two corresponding positioning blocks 12. The locking hook 14 is in the shape of a "C". The locking hook 14 is slidably connected to the corresponding locking block 16. The locking hook 14 is adapted to the locking block 16.

[0039] In addition, in specific applications, in this solution, the mold changing frame 1 is equipped with a control panel, which is electrically connected to the induction coil 8, the control panel is electrically connected to the limit switch 11, and the control panel is electrically connected to the hydraulic cylinder 7. In the initial state, the limit switch 11 located on the lower side is in contact with the induction coil 8 located on the lower side.

[0040] Initially, the locking block 16 is located outside the positioning slide groove 13. In use, the moving template 2 is placed on the mold changing frame 1, and the locking hooks 14 on the moving template 2 are slid into the two corresponding positioning blocks 12. When the operating controller starts the hydraulic cylinder 7, the hydraulic cylinder 7 drives the fixed rod 6 to move up and down. As the fixed rod 6 moves upward, it also simultaneously drives the fixed rod 6, mounting base 23, limit switch 11, and locking block 16 upward, thereby simultaneously driving the locking block 16 to slide into the two corresponding positioning slide grooves 13. During the upward movement of the locking block 16, it slides and connects with the corresponding locking hook 14, causing the locking block 16 to engage with the locking hook 14. At this time, the upper side... This fixes the locking hook 14, preventing it from sliding out between the two corresponding positioning blocks 12. At this time, the upper limit switch 11 contacts the upper induction coil 8, triggering the upper limit switch 11. The limit switch 11 then closes the hydraulic cylinder 7, fixing the locking hook 14 between the two positioning blocks 12. This enables the locking of the mold between the moving template 2 and the fixed template 3, achieving self-locking. The device is easy to install, simple to operate, labor-saving and reliable, and the force is evenly distributed, ensuring the processing quality of the product and increasing the practicality of the self-locking mold structure.

[0041] In one embodiment, the linkage mechanism includes two fixed plates 18, both fixed plates 18 are fixedly connected to the outer surface of the corresponding fixed rod 6, and a support spring 17 is fixedly connected between the fixed plate 18 and the support block 10. The support spring 17 is slidably sleeved on the outer surface of the fixed rod 6, and a push block 19 is fixedly connected to the upper end of the left fixed rod 6 and the right end of the upper fixed rod 6.

[0042] Wheels 22 are fixedly connected to the left end of the upper fixed rod 6 and the upper end of the right fixed rod 6. The outer surface of the push block 19 near the wheel 22 is provided with an inner groove 21. The wheel 22 is slidably connected between the inner walls of the front and rear sides of the inner groove 21. One side of the inner wall of the inner groove 21 is inclined. The roller of the wheel 22 is in contact with the inclined surface of the inner groove 21.

[0043] Furthermore, in specific applications, in this scheme, the support spring 17, support block 10, and fixing plate 18 cooperate to support and position the fixing rod 6. When the starting cylinder 7 drives the fixing rod 6 on the left to move upward, it simultaneously drives the pushing block 19 on the left to move upward. During the upward movement of the pushing block 19, the inclined surface of the pushing block 19 provides a rightward push to the corresponding wheel 22, and pushes the wheel 22 to move to the left. During this process, the corresponding support spring 17 is stretched, thereby simultaneously driving the fixing rod 6 on the upper side to move to the right. Similarly, the pushing block 19 on the upper fixing rod 6 provides a rightward push to the corresponding support spring 17. The downward thrust of wheel 22 causes it to move the fixed rod 6 on the right side downward, and in the process, the corresponding support spring 17 is also stretched. As can be seen from the above, when the hydraulic cylinder 7 is started, it can drive the three fixed rods 6 to move simultaneously, and thus drive the locking blocks 16 on the three fixed rods 6 to lock the locking hook 14. This saves more energy and makes the locking blocks 16 and locking hook 14 on the left and right sides and the top side cooperate to lock each other, making the mold locking reliable and stable, and the mold locking force uniform, thereby ensuring the processing quality of the product, increasing the practicality of the self-locking mold locking structure device, and also improving the energy efficiency of the self-locking mold locking structure device.

[0044] In addition, in specific applications, in this solution, the support spring 17 supports the corresponding fixed rod 6, and also supports and positions the corresponding wheel 22 and push block 19. The support spring 17 also has the function of resetting the fixed rod 6 located on the upper and right sides. Under the action of the support spring 17, the wheel 22 will not slide out of the inner groove 21.

[0045] In addition, in specific applications, in this scheme, the limit switch 11 and the induction coil 8 work together to position and limit the locking block 16.

[0046] In summary, with the aid of the above-mentioned technical solution of this utility model, by activating the hydraulic cylinder 7, the hydraulic cylinder 7 drives the fixed rod 6 located on the left side to move up and down. In this solution, the mold changing frame 1 is equipped with a control panel, which is electrically connected to the induction coil 8, the limit switch 11, the hydraulic cylinder 7, and the limit switch 11. In the initial state, the limit switch 11 located on the lower side is in contact with the induction coil 8 located on the lower side; in the initial state, the locking block 16 is located outside the positioning slide groove 13. In use, the moving template 2 is placed on the mold changing frame 1, and the locking hooks 14 on the moving template 2 are slid into both slots. Between the corresponding positioning blocks 12, when the operating controller starts the hydraulic cylinder 7, the hydraulic cylinder 7 drives the fixed rod 6 to move up and down. When the fixed rod 6 moves upward, it also drives the fixed rod 6, mounting base 23, limit switch 11 and locking block 16 to move upward simultaneously, thereby driving the locking block 16 to slide into the corresponding two positioning grooves 13. During the upward movement of the locking block 16, it slides and connects with the corresponding locking hook 14, making the locking block 16 and the locking hook 14 engage. At this time, the upper side is used to fix the locking hook 14, so that the locking hook 14 cannot slide out between the corresponding two positioning blocks 12. At this time, the upper limit switch 11 and the locking hook 14 are engaged. When the upper induction coil 8 contacts, it triggers the upper limit switch 11, which closes the hydraulic cylinder 7. At this point, the locking hook 14 is fixed between the two positioning blocks 12, thus achieving mold locking between the moving template 2 and the fixed template 3. This enables self-locking between the moving template 2 and the fixed template 3. The support spring 17, support block 10, and fixing plate 18 work together to support and position the fixing rod 6. When the starting hydraulic cylinder 7 moves the fixing rod 6 on the left upwards, it simultaneously moves the pushing block 19 on the left upwards. During this upward movement, the pushing block 19 pushes... The inclined surface of block 19 pushes the corresponding wheel 22 to the right and moves the wheel 22 to the left. During this process, the corresponding support spring 17 is stretched, which in turn drives the fixed rod 6 located on the upper side to move to the right. Similarly, the push block 19 on the upper fixed rod 6 pushes the corresponding wheel 22 downward, so that it drives the fixed rod 6 located on the right side to move downward. During this process, the corresponding support spring 17 is also stretched. As can be seen from the above, when the hydraulic cylinder 7 is activated, it can drive the three fixed rods 6 to move simultaneously, which can then drive the locking blocks 16 on the three fixed rods 6 to lock the locking hook 14.

[0047] Through the above technical solution, 1. the locking hook 14 is fixed between the two positioning blocks 12, thereby realizing the locking work between the moving template 2 and the fixed template 3. It can realize the self-locking locking between the moving template 2 and the fixed template 3, which is easy to install, simple to operate, labor-saving and reliable in locking, and uniform in force, thereby ensuring the processing quality of the product and increasing the practicality of the self-locking locking structure device.

[0048] When the hydraulic cylinder 7 is activated, the three fixed rods 6 can be driven to move simultaneously, which in turn can drive the locking blocks 16 on the three fixed rods 6 to lock the locking hooks 14. This saves more energy and makes the locking blocks 16 on the left and right sides and the upper side and the locking hooks 14 cooperate to lock each other, making the mold locking reliable and stable, and the mold locking force uniform, thereby ensuring the processing quality of the product, increasing the practicality of the self-locking mold locking structure device, and improving the energy efficiency of the self-locking mold locking structure device.

[0049] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A self-locking mold-locking structure device, comprising a mold-changing frame (1), a movable template (2), and a fixed template (3), characterized in that, The fixed template (3) is fixedly connected to the mold changing frame (1). The movable template (2) is located in front of the fixed template (3). Three first fixed seats (4) are fixedly connected to the front surface of the fixed template (3). Three second fixed seats (5) are fixedly connected to the outer surface of the movable template (2). The three second fixed seats (5) correspond one-to-one with the three first fixed seats (4). Locking hooks (14) are provided on the second fixed seats (5). Multiple mold locking mechanisms are provided on each of the first fixed seats (4). The mold locking mechanisms cooperate with the locking hooks (14) to realize the installation and fixation between the movable template (2) and the fixed template (3) to complete the mold locking work between the movable template (2) and the fixed template (3). A linkage mechanism is provided on the mold locking mechanism. The linkage mechanism enables the mold locking mechanisms on the three first fixed seats (4) to perform mold locking work simultaneously. A driving mechanism is provided on the front surface of the left first fixed seat (4). The driving mechanism is used to drive the mold locking mechanism to work.

2. The self-locking mold-locking structure device according to claim 1, characterized in that, The driving mechanism includes three fixed rods (6), which correspond one-to-one with three first fixed seats (4). A hydraulic cylinder (7) is fixedly connected to the front surface of the first fixed seat (4) on the left side. The telescopic end of the hydraulic cylinder (7) is fixedly connected to the lower end of the fixed rod (6) on the left side. Multiple sliding columns (9) are fixedly sleeved on the outer surface of the fixed rod (6).

3. The self-locking mold-locking structure device according to claim 2, characterized in that, The locking mechanism includes two positioning blocks (12), both of which are fixedly connected to the front surface of the first fixed seat (4). The upper surface of the positioning block (12) is provided with a sliding groove (20) extending out of its lower surface. The two positioning blocks (12) are slidably sleeved on the outer surface of the corresponding sliding column (9) through the sliding groove (20).

4. The self-locking mold-locking structure device according to claim 3, characterized in that, Two support blocks (10) are fixedly connected to the front surface of the first fixed base (4). The two support blocks (10) are slidably sleeved on the outer surface of the corresponding fixed rod (6). The upper surface of the positioning block (12) is provided with a positioning groove (13) extending out of its lower surface. The positioning groove (13) is in the shape of an "L". The outer surface of the sliding column (9) is fixedly connected with a locking block (16). The locking block (16) is slidably connected to the positioning groove (13). The locking block (16) is in the shape of an "L" and is adapted to the positioning groove (13).

5. The self-locking mold-locking structure device according to claim 4, characterized in that, The vertical block of the locking block (16) is fixedly connected to the outer surface of the sliding column (9). The left side surface of the positioning block (12) adjacent to the oil cylinder (7) is fixedly connected to the mounting base (23). Two limit switches (11) are fixedly installed on the mounting base (23). Two induction coils (8) are fixedly installed on the outer surface of the sliding column (9) adjacent to the oil cylinder (7).

6. The self-locking mold-locking structure device according to claim 5, characterized in that, Multiple connecting seats (15) are fixedly connected to the outer surface of the second fixed seat (5) near the fixed rod (6). The locking hook (14) is fixedly connected to the outer surface of the connecting seat (15) away from the second fixed seat (5). The locking hook (14) is slidably connected between the two corresponding positioning blocks (12). The locking hook (14) is in the shape of a "C". The locking hook (14) is slidably connected to the corresponding locking block (16). The locking hook (14) is adapted to the locking block (16).

7. The self-locking mold-locking structure device according to claim 6, characterized in that, The linkage mechanism includes two fixed plates (18), both fixed plates (18) are fixedly connected to the outer surface of the corresponding fixed rod (6), and a support spring (17) is fixedly connected between the fixed plate (18) and the support block (10). The support spring (17) is slidably sleeved on the outer surface of the fixed rod (6). A push block (19) is fixedly connected to the upper end of the left fixed rod (6) and the right end of the upper fixed rod (6).

8. The self-locking mold-locking structure device according to claim 7, characterized in that, Wheels (22) are fixedly connected to the left end of the upper fixed rod (6) and the upper end of the right fixed rod (6). The outer surface of the push block (19) near the wheel (22) is provided with an inner groove (21). The wheel (22) is slidably connected between the inner walls of the front and rear sides of the inner groove (21). One side of the inner wall of the inner groove (21) is inclined. The roller of the wheel (22) is in contact with the inclined surface of the inner groove (21).

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