Quick die changing device for press line press

Abstract

The utility model discloses a kind of quick die changing device for press line press, it is related to press die changing technical field, to solve the technical problem of current press line press die changing efficiency, including base plate and the lifting mechanism on base plate and the die changing mechanism set on lifting mechanism, the lifting mechanism includes fixed plate symmetrically installed on base plate, the end of fixed plate is equipped with the limiting rod of L type arrangement and is installed, threaded rod is rotatably installed between fixed plate and base plate, threaded rod is equipped with lifting block on screw thread, the die changing mechanism includes hydraulic equipment symmetrically installed on lifting block, the end of hydraulic equipment is equipped with support plate, the front end and rear end of support plate are all equipped with mounting portion. The utility model has the advantages that manual handling is not needed, die changing time and labor intensity are reduced, support plate unique structure guides die stable placement, limiting structure guarantees die stable, die changing efficiency and security are improved in all directions.

Description

Technical Field

[0001] This utility model relates to the field of press mold changing technology, and more specifically, to a quick mold changing device for a stamping line press. Background Technology

[0002] A press is a processing device that applies pressure to a workpiece through mechanical or hydraulic transmission, causing it to undergo plastic deformation, separation, or forming. Its core principle is to use a power system to drive an actuator, which, in conjunction with a die, completes the stamping process. Based on the type of power, presses can be classified into mechanical presses, hydraulic presses, and pneumatic presses. Presses are characterized by high precision, high rigidity, and high efficiency, and are widely used in the automotive, electronics, and aerospace industries.

[0003] In stamping lines, the dies on the press need to be changed to process different products. Currently, when changing dies, workers need to remove the old die from the press and then carry the new die onto it. The dies are heavy, which is not only physically demanding, but also causes the bottom of the die to easily collide with the top of the press table during transport, making it difficult to stably place the new die and resulting in low efficiency in die changing. Therefore, we propose a quick die changing device for stamping line presses. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a quick die-changing device for a stamping line press, so as to solve the technical problem of low die-changing efficiency of the current stamping line press.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a quick die-changing device for a stamping line press, comprising a base plate, a lifting mechanism on the base plate, and a die-changing mechanism on the lifting mechanism. The lifting mechanism includes fixed plates symmetrically mounted on the base plate. The upper part of the fixed plate is bent at a 90-degree angle. An L-shaped limiting rod is installed at the end of the fixed plate. A threaded rod is rotatably mounted between the fixed plate and the base plate. A motor for driving the threaded rod is provided at the upper end of the fixed plate. A lifting block is threaded onto the threaded rod. The die-changing mechanism includes hydraulic devices symmetrically mounted on the lifting blocks. A support plate is installed at the end of the hydraulic devices. Mounting parts are provided at both the front and rear ends of the support plate. A spring is provided at the upper end of the mounting part. A damping rod is provided inside the spring. A limiting plate is installed at the upper end of the spring.

[0006] Preferably, positioning rods are symmetrically installed between the fixing plate and the base plate, and positioning holes are opened on the lifting block, with the positioning rods located in the positioning holes of the lifting block.

[0007] Preferably, a pulley is symmetrically and rotatably mounted on the lower end of the base plate, the pulley is connected to the axis of the threaded rod, and a transmission belt is provided between the pulleys.

[0008] Preferably, the limiting plate has a triangular cross-section, the upper surface of the limiting plate is an outward and downward sloping surface, and the upper end of the limiting plate is flush with the upper end of the support plate.

[0009] Preferably, the support plate includes, from the inside out, a mold-releasing part, a support part, and a limiting part. The mold-releasing part has a triangular cross-section, and the upper surface of the mold-releasing part is inclined downward from the outside to the inside. The thickness of the mold-releasing part gradually decreases from the outside to the inside.

[0010] Preferably, the support portion is disposed on the outside of the mold-releasing portion, and the upper end of the support portion is provided with balls at equal intervals. The limiting portion is disposed on the outside of the support portion, and the height of the limiting portion is higher than that of the support portion.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, through the design of a lifting block structure, utilizes a motor-driven threaded rod to raise the lifting block and support plate to be flush with the press machine's worktable when disassembling the old mold. Combined with a limiting plate, ball bearings, and other structures, the old mold can be easily slid onto the support plate. When installing a new mold, the height is adjusted using the lifting mechanism, and then hydraulic equipment is used to separate the support plate, allowing the new mold to smoothly slide onto the press machine's worktable. The entire mold-changing process requires no manual handling, greatly reducing mold-changing time and the labor intensity of workers, while ensuring the safety and health of operators. Compared to traditional manual mold-changing methods, efficiency is significantly improved, solving the problem of low mold-changing efficiency in current stamping line presses.

[0013] 2. This utility model also features a support plate structure with a triangular mold placement section. The upper surface has a sloping design and a gradually changing thickness, which guides the mold to be placed smoothly and stably on the press when placing a new mold. It also facilitates the sliding of the old mold. The evenly distributed ball bearings on the support section greatly reduce the friction between the mold and the support plate, making it easier and less strenuous to push the mold onto the plate or slide it off, effectively improving mold changing efficiency. The limiting section is higher than the support section and works with the limiting plates at the front and rear ends to form a three-dimensional limiting structure. After the mold is placed on the support section, the limiting section can block and limit the mold on both sides, while the limiting plates prevent the mold from sliding out from the front and rear directions. This ensures the stability of the mold's position on the support plate from all directions, avoiding safety hazards and operational errors caused by mold displacement during mold changing, and ensuring the safety and stability of the mold changing process. Attached Figure Description

[0014] Figure 1This is a front view structural diagram of the present utility model;

[0015] Figure 2 This is a bottom view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the mold changing mechanism of this utility model;

[0017] Figure 4 This is a schematic diagram of the support plate structure of this utility model;

[0018] Figure 5 This is a cross-sectional view of the support plate of this utility model;

[0019] Figure 6 This is a schematic diagram of one usage state of the present invention.

[0020] The following are the labels in the diagram: 101, base plate; 200, lifting mechanism; 201, fixing plate; 202, threaded rod; 203, pulley; 204, transmission belt; 205, motor; 206, limit rod; 207, positioning rod; 208, lifting block; 300, mold changing mechanism; 301, hydraulic equipment; 302, support plate; 3021, mold placement part; 3022, support part; 3023, ball bearing; 3024, limit part; 303, mounting part; 304, spring; 305, limit plate. Detailed Implementation

[0021] like Figures 1 to 6 As shown, this utility model relates to a quick die-changing device for a stamping line press, including a base plate 101, a lifting mechanism 200 on the base plate 101, and a die-changing mechanism 300 provided on the lifting mechanism 200. The lifting mechanism 200 includes fixed plates 201 symmetrically installed on the base plate 101. The upper part of the fixed plate 201 is bent at a 90-degree angle. An L-shaped limiting rod 206 is installed at the end of the fixed plate 201. A threaded rod 20 is rotatably installed between the fixed plate 201 and the base plate 101. 2. A motor 205 driving a threaded rod 202 is installed at the upper end of the fixed plate 201. A lifting block 208 is threaded onto the threaded rod 202. The mold changing mechanism 300 includes a hydraulic device 301 symmetrically mounted on the lifting block 208. A support plate 302 is installed at the end of the hydraulic device 301. Mounting parts 303 are provided at both the front and rear ends of the support plate 302. A spring 304 is installed at the upper end of the mounting part 303. A damping rod is installed inside the spring 304. A limit plate 305 is installed at the upper end of the spring 304. This device, through the cooperation of the lifting mechanism 200 and the mold changing mechanism 300, eliminates the need for manual handling, reducing mold changing time and labor intensity. The unique structure of the support plate 302 guides the mold to be placed stably, the ball bearings 3023 reduce friction, and the limit structure ensures mold stability, comprehensively improving mold changing efficiency and safety.

[0022] Specifically, positioning rods 207 are symmetrically installed between the fixing plate 201 and the base plate 101, and positioning holes are provided on the lifting block 208, with the positioning rods 207 located within the positioning holes of the lifting block 208. The positioning rods 207 are provided to position the lifting block 208 during lifting.

[0023] Furthermore, pulleys 203 are symmetrically rotatably mounted on the lower end of the base plate 101. The pulleys 203 are connected to the shaft of the threaded rod 202, and a transmission belt 204 is provided between the pulleys 203. When the motor 205 drives one of the threaded rods 202 to rotate, the pulley 203 located below will rotate accordingly. Under the action of the transmission belt 204, it can drive the other pulley 203 to rotate, thereby enabling the two threaded rods 202 to rotate synchronously.

[0024] It is worth noting that the limiting plate 305 has a triangular cross-section, and its upper surface is an outward and downward sloping surface. The upper end of the limiting plate 305 is flush with the upper end of the support plate 302. When removing the old mold, the support plate 302 can be aligned with the height of the press table. Then, the old mold can be slid onto the support plate 302. Due to the sloping surface of the upper end of the limiting plate 305, the old mold can press the limiting plate 305, causing it to descend. With the help of the ball bearings 3023 on the upper end of the support part 3022, the old mold can be placed on the support plate 302. Then, the lifting mechanism 200 operates to lower the old mold, and the support plate 302 becomes flush with the table surface where the old mold is placed. Finally, the old mold can be slid off the limiting plate 305. This method of removing the old mold is time-saving and labor-saving, which helps to improve mold changing efficiency.

[0025] It is worth mentioning that the support plate 302 includes, from the inside out, a mold-releasing part 3021, a support part 3022 and a limiting part 3024. The mold-releasing part 3021 has a triangular cross-section, and the upper end surface of the mold-releasing part 3021 is inclined downward from the outside to the inside. The thickness of the mold-releasing part 3021 gradually decreases from the outside to the inside. When installing a new mold, the utility model is moved so that the support plate 302 is positioned corresponding to the placement table of the new mold. The lifting mechanism 200 adjusts the height of the support plate 302 until it is flush with the placement table of the new mold. Then, the new mold is pushed onto the support plate 302, where it rests on the support part 3022. The limiting part 3024 and the limiting plate 305 limit the new mold's position. The pushing device is then moved to the press, and the motor 205 rotates the threaded rod 202 to adjust the height of the new mold until the lower end of the support plate 302 is flush with the press table. The utility model is then pushed further until the new mold is positioned above the press table. The two hydraulic devices 301 shorten their hydraulic rods, causing the two support plates 302 to move away from each other. At this point, the new mold is limited by the limiting rod 206 (e.g., ...). Figure 6 The new mold cannot be moved. As the two support plates 302 move away from each other, the new mold will be supported on the mold release part 3021. When the support plates 302 move away from each other to the limit distance, the new mold will slide down from the end of the mold release part 3021, so that the new mold can be placed stably on the press. The mold changing operation is not only simple and quick, but also does not require personnel to carry it, effectively saving physical strength and greatly improving the mold changing efficiency.

[0026] It is worth noting that the support portion 3022 is located on the outside of the mold release portion 3021, and ball bearings 3023 are equidistantly arranged at the upper end of the support portion 3022. The limiting portion 3024 is located on the outside of the support portion 3022, and the height of the limiting portion 3024 is higher than that of the support portion 3022. When the mold is located on the support portion 3022 of the support plate 302, the limiting portion 3024 can limit the position of both sides of the mold, which can prevent the mold from slipping off the support plate 302.

[0027] Working Principle: This embodiment provides a quick mold change device for a stamping line press. In use, first remove the old mold, move the device next to the press, and start the motor 205. The motor 205 drives one of the threaded rods 202 to rotate. Since the pulleys 203 symmetrically mounted on the lower end of the base plate 101 are connected to the axis of the threaded rod 202, and a transmission belt 204 is provided between the pulleys 203, the rotation of one threaded rod 202 will drive the lower pulley 203 to rotate, which in turn causes the other pulley 203 to rotate via the transmission belt 204, achieving synchronous rotation of the two threaded rods 202. During the rotation of the threaded rod 202, the lifting block 20, threaded onto the threaded rod 202... 8. The mold rises along the positioning rod 207 until the support plate 302 of the mold changing mechanism 300 is aligned with the height of the press worktable. Then, the old mold is pushed onto the support plate 302 by sliding. Because the upper surface of the limiting plate 305 is set with an outward and downward slope, the old mold squeezes the limiting plate 305. Under the action of the spring 304 and the damping rod, the limiting plate 305 descends. With the help of the ball bearings 3023 at the upper end of the support part 3022, the old mold slides smoothly onto the support plate 302. At this time, the limiting part 3024 limits the two sides of the old mold to prevent it from slipping. After the old mold is placed, the motor 205 is started again, causing the threaded rod 202 to rotate in the opposite direction. The lifting block 208 drives the mold changing mechanism to descend. Until the support plate 302 is flush with the table surface where the old mold is placed, the old mold is slid off the limiting plate 305 to complete the disassembly of the old mold. Then, the new mold is installed. The device is moved so that the support plate 302 is positioned corresponding to the new mold's placement table. The motor 205 is started to adjust the height of the lifting block 208, making the support plate 302 flush with the new mold's placement table. Next, the new mold is pushed onto the support plate 302, supported by the support part 3022. The limiting part 3024 and the limiting plate 305 limit and fix the new mold. The device is then moved to the press, the motor 205 is started, and the height of the new mold is adjusted by rotating the threaded rod 202, so that the support plate 302 is flush with the new mold's placement table. The lower end of 2 is flush with the height of the press table. Continue to push the device so that the new mold is above the press table. Start the two hydraulic devices 301 to shorten the hydraulic rods, so that the two support plates 302 can move away from each other. During this process, the new mold will be supported on the mold placement part 3021. Since the upper end surface of the mold placement part 3021 is set with a downward slope from the outside to the inside, and the thickness gradually decreases from the outside to the inside, when the support plates 302 move away from each other to the limit distance, the new mold will slide down from the end of the mold placement part 3021. At the same time, the new mold is limited by the limit rod 206 and cannot move, so it is placed stably on the press table, completing the setting of the new mold, which can facilitate the quick mold changing work of the press.

[0028] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A quick die-changing device for a stamping line press, characterized in that, The system includes a base plate (101), a lifting mechanism (200) on the base plate (101), and a mold changing mechanism (300) on the lifting mechanism (200). The lifting mechanism (200) includes a fixing plate (201) symmetrically mounted on the base plate (101). The upper part of the fixing plate (201) is bent at a 90-degree angle. An L-shaped limiting rod (206) is installed at the end of the fixing plate (201). A threaded rod (202) is rotatably mounted between the fixing plate (201) and the base plate (101). A driving mechanism is provided at the upper end of the fixing plate (201). The motor (205) of the threaded rod (202) has a lifting block (208) threaded on the threaded rod (202). The mold changing mechanism (300) includes a hydraulic device (301) symmetrically installed on the lifting block (208). A support plate (302) is installed at the end of the hydraulic device (301). The front and rear ends of the support plate (302) are provided with mounting parts (303). A spring (304) is provided at the upper end of the mounting part (303). A damping rod is provided inside the spring (304). A limit plate (305) is installed at the upper end of the spring (304).

2. The quick die-changing device for a stamping line press according to claim 1, characterized in that, Positioning rods (207) are symmetrically installed between the fixing plate (201) and the base plate (101). Positioning holes are provided on the lifting block (208), and the positioning rods (207) are located in the positioning holes of the lifting block (208).

3. A quick die-changing device for a stamping line press according to claim 2, characterized in that, The lower end of the base plate (101) is symmetrically and rotatably equipped with pulleys (203), the pulleys (203) are connected to the axis of the threaded rod (202), and a transmission belt (204) is provided between the pulleys (203).

4. A quick die-changing device for a stamping line press according to claim 3, characterized in that, The limiting plate (305) has a triangular cross-section, and the upper surface of the limiting plate (305) is an outward and downward inclined surface. The upper end of the limiting plate (305) is flush with the upper end of the support plate (302).

5. A quick die-changing device for a stamping line press according to claim 4, characterized in that, The support plate (302) includes, from the inside out, a mold-releasing part (3021), a support part (3022), and a limiting part (3024). The mold-releasing part (3021) has a triangular cross-section. The upper surface of the mold-releasing part (3021) is inclined downward from the outside to the inside. The thickness of the mold-releasing part (3021) gradually decreases from the outside to the inside.

6. A quick die-changing device for a stamping line press according to claim 5, characterized in that, The support part (3022) is located outside the mold release part (3021). The upper end of the support part (3022) is provided with balls (3023) at equal intervals. The limiting part (3024) is located outside the support part (3022), and the height of the limiting part (3024) is higher than that of the support part (3022).

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