Automatic die changing mechanism for heavy die

Abstract

The utility model belongs to mould overhauls technical field, concretely is a kind of heavy die automatic die changing mechanism, including mounting bracket;The movable slot A is fixed to the top of mounting bracket, the inner wall sliding connection of movable slot A has crane, the hoisting equipment is installed at the top of crane, the steel wire rope is installed in hoisting equipment output shaft, and the steel wire rope is set as through on crane, it is characterized by: the steel wire rope bottom fixedly connected with mounting plate, the mounting plate top fixedly connected with two limit shafts, the limit shaft and crane are slidingly connected;The utility model provides a kind of heavy die automatic die changing mechanism, under the action of limit shaft, the stability of mould lifting is guaranteed, the positioning deviation problem caused by shaking is avoided, the automatic detection and adjustment of mould position are realized simultaneously by the linkage of infrared sensor and electric push rod, greatly improve die changing positioning precision, reduce manual intervention, improve die changing efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of mold repair technology, specifically a heavy-duty mold automatic mold changing mechanism. Background Technology

[0002] Heavy-duty molds are molds used for the production of large, complex or high-strength products. They are typically characterized by large size, high weight, complex structure, and strict precision requirements. They are widely used in automobile manufacturing, engineering machinery, aerospace, home appliances and other fields to produce key components such as large plastic parts, metal stamping parts, and die castings.

[0003] In industrial production, mold changing operations for heavy-duty molds are a key aspect of ensuring production continuity and flexibility. Magnetic mold changing is a rapid mold changing system developed for heavy-duty molds. It uses electromagnetic or permanent magnet forces to quickly fix the mold to the injection molding machine template, replacing the traditional bolt-locking method and significantly improving mold changing efficiency.

[0004] Through long-term observation, it has been found that in the magnetic mold changing process, the crane, as the core equipment for lifting and moving heavy molds, directly affects the efficiency and safety of mold changing. However, due to the mechanical balance deviation at the connection point between the lifting rope and the mold, the mold is prone to irregular shaking due to inertia. This shaking makes it difficult for the mold to align with the magnetic template of the injection molding machine, which not only prolongs the alignment time but may also cause damage to the mold cavity, magnetic chuck, or injection molding machine template due to collision. Therefore, an automatic mold changing mechanism for heavy molds is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes an automatic mold changing mechanism for heavy-duty molds.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A heavy-duty mold automatic mold changing mechanism of this utility model includes a mounting frame; a movable groove A is fixedly connected to the top of the mounting frame, a crane is slidably connected to the inner wall of the movable groove A, a lifting device is installed on the top of the crane, a steel wire rope is installed on the output shaft of the lifting device, and the steel wire rope is through-connected to the crane; the feature is that: a mounting plate is fixedly connected to the bottom of the steel wire rope, two limiting shafts are fixedly connected to the top of the mounting plate, the limiting shafts are slidably connected to the crane, a hook is fixedly connected to the bottom of the mounting plate for hanging the mold and installing it on a magnetic template inside the injection molding machine, two electric push rods are fixedly connected to the top of the mounting plate, an adjustment plate is fixedly connected to the output end of the electric push rods, and the adjustment plate is located at the bottom of the mounting plate, an infrared sensor is installed in the middle of the mounting plate for detecting whether a mold is fixed on the hook, a control module is installed on the top of the mounting plate, and the infrared sensor and the two electric push rods are electrically connected to the control module.

[0007] Preferably, two extension frames are fixedly connected to the top of the crane, and two sets of reinforcing frames A are fixedly connected to both extension frames and the inner wall of the crane to reinforce the sliding of the limiting shaft. The end of the reinforcing frame A is shaped to match the outer wall of the limiting shaft. Both ends of the limiting shaft are inclined structures, and guide blocks A are fixedly connected to both ends of the reinforcing frame A corresponding to the inclined structure of the limiting shaft.

[0008] Preferably, two mounting brackets have placement plates fixed to their side walls. Each placement plate has two movable slots B at its top, and a movable plate is provided on top of the placement plate for placing the mold. The movable plate and the movable slots B are slidably connected. Preferably, a hydraulic rod is mounted on the top of the mounting frame, and a push frame is fixedly connected to the output shafts of the two hydraulic rods. Two extension plates are fixedly connected to the top of the push frame, and the extension plates are used to push the mold to move directly below the hook.

[0009] Preferably, a support block is fixed to the outer wall of the extension plate, and a guide block B is fixed to the end of the support block. The guide block B has an inclined structure and is oriented towards the hook direction.

[0010] Preferably, the two extension plates are fixedly connected to the side walls of the reinforcing frame B.

[0011] The beneficial effects of this utility model are: This utility model provides an automatic mold changing mechanism for heavy-duty molds. By using a limiting shaft, it ensures the stability of mold lifting and lowering, avoiding positioning deviations caused by shaking. At the same time, the linkage between the infrared sensor and the electric push rod realizes the automatic detection and adjustment of the mold position, which greatly improves the positioning accuracy of mold changing, reduces manual intervention, and improves mold changing efficiency.

[0012] This utility model provides an automatic mold changing mechanism for heavy-duty molds. By strengthening the load-bearing capacity and stability of the limiting shaft through the reinforcing frame A, it is suitable for the hoisting requirements of heavy-duty molds. The guide block A and the inclined surface of the limiting shaft cooperate to reduce sliding friction, ensure smooth movement of the limiting shaft, and extend the service life of the mechanism. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the crane structure in this utility model; Figure 3 for Figure 2 Enlarged view of point A Figure 4 This is a schematic diagram of the limiting shaft structure in this utility model; Figure 5 This is a schematic diagram of the placement plate structure in this utility model.

[0014] Legend: 1. Mounting frame; 11. Movable slot A; 12. Crane; 13. Lifting equipment; 14. Wire rope; 15. Mounting plate; 16. Limiting shaft; 17. Hook; 18. Electric actuator; 19. Adjusting plate; 110. Infrared sensor; 2. Extension frame; 21. Reinforcing frame A; 22. Guide block A; 3. Placement plate; 31. Movable slot B; 32. Movable plate; 4. Hydraulic rod; 41. Push frame; 42. Extension plate; 5. Support block; 51. Guide block B; 6. Reinforcing frame B; 100. Injection molding machine; 200. Magnetic template. Detailed Implementation

[0015] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] Specific implementation examples are given below.

[0017] like Figures 1-5As shown, a heavy-duty mold automatic mold changing mechanism includes a mounting frame 1. A movable groove A11 is fixedly connected to the top of the mounting frame 1. A crane 12 is slidably connected to the inner wall of the movable groove A11. A lifting device 13 is mounted on the top of the crane 12. A steel wire rope 14 is mounted on the output shaft of the lifting device 13, and the steel wire rope 14 is arranged through the crane 12. The mechanism is characterized in that: a mounting plate 15 is fixedly connected to the bottom of the steel wire rope 14, and two limiting shafts 16 are fixedly connected to the top of the mounting plate 15. Mounting plate 16 is slidably connected to crane 12. A hook 17 is fixedly attached to the bottom of mounting plate 15 for holding the mold and mounting it on the magnetic template 200 inside injection molding machine 100. Two electric actuators 18 are fixedly attached to the top of mounting plate 15. An adjustment plate 19 is fixedly attached to the output end of each electric actuator 18, and the adjustment plate 19 is located at the bottom of mounting plate 15. An infrared sensor 110 is installed in the middle of mounting plate 15 to detect whether a mold is fixed on the hook 17. A control module is installed on the top of mounting plate 15. The infrared sensor 110 and the two electric actuators 18 are electrically connected to the control module. When the mold needs to be replaced, the lifting equipment 13 lowers the mounting plate 15 via the wire rope 14, so that the hook 17 hooks the mold to be replaced. The limiting shaft 16 moves synchronously with the mounting plate 15, maintaining a sliding fit with the crane 12 to ensure that the mounting plate 15 is stable and does not shake during the lifting process. After the infrared sensor 110 detects that the mold has been hooked on the hook 17, it transmits a signal to the control module. The control module starts the electric actuator 18, pushes the adjusting plate 19 to fit against the top of the mold, and fine-tunes the position of the mold so that it can be placed horizontally. Then the crane 12 slides in the movable groove A11 to move the mold to the magnetic template 200 to complete the installation. This step, under the action of the limiting shaft 16, ensures the stability of the mold lifting and avoids the positioning deviation caused by shaking. At the same time, the linkage between the infrared sensor 110 and the electric actuator 18 realizes the automatic detection and adjustment of the mold position, which greatly improves the positioning accuracy of mold replacement, reduces manual intervention, and improves the efficiency of mold replacement.

[0018] like Figure 1 , Figure 2 and Figure 4As shown, two extension frames 2 are fixedly connected to the top of the crane 12. Two sets of reinforcing frames A21 are fixedly connected to both extension frames 2 and the inner wall of the crane 12 to reinforce the sliding of the limiting shaft 16. The ends of the reinforcing frames A21 are shaped to match the outer wall of the limiting shaft 16. Both ends of the limiting shaft 16 are inclined structures. Guide blocks A22 are fixedly connected to both ends of the reinforcing frames A21 corresponding to the inclined structures of the limiting shaft 16. When the mounting plate 15 drives the limiting shaft 16 to rise or fall, the reinforcing frames A21 are tightly fitted to the outer wall of the limiting shaft 16. By strengthening the structure of the crane 12 through the extension frame 2, the rigid support of the limit shaft 16 during sliding is further improved. The inclined structure at both ends of the limit shaft 16 cooperates with the guide block A22 to guide the limit shaft 16 during its up and down movement, preventing jamming. This step enhances the load-bearing capacity and stability of the limit shaft 16 in the reinforcement frame A21, making it suitable for the hoisting requirements of heavy molds. The inclined surface of the guide block A22 cooperates with the limit shaft 16 to reduce sliding friction, ensure smooth movement of the limit shaft 16, and extend the service life of the mechanism.

[0019] like Figure 1 , Figure 2 and Figure 5 As shown, two mounting brackets 1 are fixedly connected to the side walls of the mounting brackets 1. The top of the mounting brackets 3 has two movable slots B31. The top of the mounting brackets 3 is provided with a movable plate 32 for placing the mold. The movable plate 32 and the movable slots B31 are slidably connected. The mold to be replaced is placed on the movable plate 32 in advance. The movable plate 32 can slide along the movable slots B31 on the mounting brackets 3, which makes it convenient to move the mold to the area near the hook 17. This step, with the sliding cooperation between the movable plate 32 and the movable slots B31, makes the pre-placement and initial transfer of the mold more convenient, reduces the labor intensity of mold handling, and improves the preparation efficiency before mold replacement.

[0020] like Figure 5 As shown, a hydraulic rod 4 is installed on the top of the mounting frame 1. The output shafts of the two hydraulic rods 4 are fixedly connected to a push frame 41. Two extension plates 42 are fixedly connected to the top of the push frame 41. The extension plates 42 are used to push the mold to move directly below the hook 17. When the mold is placed on the movable plate 32, the hydraulic rods 4 are activated, and the push frame 41 drives the extension plates 42 to move forward. The extension plates 42 fit against the side of the mold and push the mold directly below the hook 17, so that the hook 17 can easily hook the mold. The extension plates 42 driven by the hydraulic rods 4 realize the automatic alignment and pushing of the mold, avoiding the tedious manual adjustment of the mold position, ensuring the alignment accuracy between the mold and the hook 17, and improving the efficiency and success rate of the hook 17 in taking off the mold.

[0021] like Figure 5As shown, a support block 5 is fixedly connected to the outer wall of the extension plate 42, and a guide block B51 is fixedly connected to the end of the support block 5. The guide block B51 has an inclined structure and is set towards the hook 17. When the extension plate 42 pushes the mold, the guide block B51 contacts the mold first. Its inclined structure initially corrects the position of the mold and guides the mold to move directly below the hook 17. With the pushing action of the extension plate 42, the mold alignment accuracy is further improved. The inclined design of the guide block B51 can make fine adjustments to the position of the mold in the early stage of pushing, reducing the alignment difficulties caused by the initial placement deviation of the mold, and making the mold be pushed to the target position more smoothly.

[0022] like Figure 5 As shown, the two extension plates 42 are fixedly connected to the side walls of the reinforcing frame B6. The reinforcing frame B6 connects the two extension plates 42, which enhances the overall rigidity of the extension plates 42 when pushing the heavy mold, and prevents the extension plates 42 from deforming due to excessive force. The reinforcing frame B6 improves the structural stability and load-bearing capacity of the extension plates 42, ensuring that they maintain a good working condition during long-term pushing of the heavy mold and extending the service life of the mechanism.

[0023] Working principle: When a mold needs to be replaced, the lifting equipment 13 lowers the mounting plate 15 via the wire rope 14, causing the hook 17 to catch the mold to be replaced. The limiting shaft 16 moves synchronously with the mounting plate 15, maintaining a sliding fit with the crane 12 to ensure the stability of the mounting plate 15 during lifting. After the infrared sensor 110 detects that the mold is hooked on the hook 17, it transmits a signal to the control module. The control module activates the electric push rod 18, pushing the adjusting plate 19 to fit against the top of the mold, finely adjusting the mold position so that it can be placed horizontally. Then, the crane 12 slides in the movable groove A11, moving the mold to the magnetic template 200 for installation. When the mounting plate 15 lifts and lowers the limiting shaft 16, the reinforcing frame A21 fits tightly against the outer wall of the limiting shaft 16. The extension frame 2 strengthens the structure of the crane 12, further improving the rigid support of the limiting shaft 16 during sliding. The inclined structure at both ends of the limiting shaft 16 and the guide block A21... The 22 mechanism acts as a guide during the up-and-down movement of the limiting shaft 16, preventing jamming. The mold to be replaced is pre-placed on the movable plate 32, which can slide along the movable groove B31 on the placement plate 3, facilitating the transfer of the mold to the area near the hook 17. After the mold is placed on the movable plate 32, the hydraulic rod 4 is activated, and the push frame 41 drives the extension plate 42 forward. The extension plate 42 fits against the side of the mold, pushing the mold directly below the hook 17, making it easy for the hook 17 to hook the mold smoothly. When the extension plate 42 pushes the mold, the guide block B51 contacts the mold first, and its inclined structure initially corrects the mold position, guiding the mold to move directly below the hook 17. Combined with the pushing action of the extension plate 42, the mold alignment accuracy is further improved. The two extension plates 42 are connected by the reinforcing frame B6, which enhances the overall rigidity of the extension plate 42 when pushing heavy molds, preventing the extension plate 42 from deforming due to excessive force.

[0024] 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 heavy-duty mold automatic mold changing mechanism, comprising a mounting frame (1); a movable groove A (11) is fixedly connected to the top of the mounting frame (1), a crane (12) is slidably connected to the inner wall of the movable groove A (11), a lifting device (13) is installed on the top of the crane (12), a wire rope (14) is installed on the output shaft of the lifting device (13), and the wire rope (14) is through the crane (12), characterized in that: The bottom of the wire rope (14) is fixedly connected to an installation plate (15). The top of the installation plate (15) is fixedly connected to two limiting shafts (16). The limiting shafts (16) are slidably connected to the crane (12). The bottom of the installation plate (15) is fixedly connected to a hook (17) for hanging the mold and installing it on the magnetic template (200) inside the injection molding machine (100). The top of the installation plate (15) is fixedly connected to two electric push rods (18). The output end of the electric push rods (18) is fixedly connected to an adjustment plate (19), and the adjustment plate (19) is located at the bottom of the installation plate (15). An infrared sensor (110) is installed in the middle of the installation plate (15) for detecting whether a mold is fixed on the hook (17). The top of the installation plate (15) is installed with a control module. The infrared sensor (110) and the two electric push rods (18) are electrically connected to the control module.

2. The automatic mold changing mechanism for heavy-duty molds according to claim 1, characterized in that: The top of the crane (12) is fixed with two extension frames (2). Both the two extension frames (2) and the inner wall of the crane (12) are fixed with two sets of reinforcing frames A (21) for reinforcing the sliding of the limiting shaft (16). The end of the reinforcing frame A (21) is shaped to match the outer wall of the limiting shaft (16). Both ends of the limiting shaft (16) are inclined structures. Both ends of the reinforcing frame A (21) are fixed with guide blocks A (22) corresponding to the inclined structure of the limiting shaft (16).

3. The automatic mold changing mechanism for heavy-duty molds according to claim 1, characterized in that: The two mounting brackets (1) are fixed to the side walls with a placement plate (3). The top of the placement plate (3) has two movable slots B (31). The top of the placement plate (3) is provided with a movable plate (32) for placing the mold. The movable plate (32) and the movable slots B (31) are slidably connected.

4. The automatic mold changing mechanism for heavy-duty molds according to claim 1, characterized in that: The mounting bracket (1) is equipped with a hydraulic rod (4) on top. The output shafts of the two hydraulic rods (4) are fixed to a pusher (41). The pusher (41) is fixed to the top of two extension plates (42). The extension plates (42) are used to push the mold to move directly below the hook (17).

5. The automatic mold changing mechanism for heavy-duty molds according to claim 4, characterized in that: The extension plate (42) has a support block (5) fixed to its outer wall. The support block (5) has a guide block B (51) fixed to its end. The guide block B (51) has an inclined structure and is positioned toward the hook (17).

6. The automatic mold changing mechanism for heavy-duty molds according to claim 4, characterized in that: The two extension plates (42) are fixed to the side walls with a reinforcing frame B (6).

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