A punching die for processing a coil material
By designing automatic feeding and stamping die components, the problems of low efficiency, inaccurate positioning, and cumbersome die replacement in coil processing have been solved, realizing automated feeding, precise stamping, and convenient die replacement, thus improving the stability and versatility of the equipment.
Patent Information
- Application Number
- CN202521826637.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-27
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-27
AI Technical Summary
Existing roll material processing equipment suffers from problems such as low efficiency of manual feeding, inaccurate positioning, cumbersome mold replacement, and poor equipment stability.
A stamping die for coil processing was designed, comprising a basic support component, an automatic feeding component, and a stamping forming component. It adopts a structure with motor drive, hydraulic rods, and wear-resistant layers to achieve automatic feeding, precise stamping, and convenient die replacement.
It has achieved automated feeding, improved work efficiency and processing quality, ensured stamping accuracy, facilitated mold replacement, enhanced equipment versatility and stability, and extended equipment life.
Smart Images

Figure CN224673619U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coil processing and stamping technology, specifically a stamping die for coil processing. Background Technology
[0002] In the field of coil processing, stamping is a key process for achieving coil forming. Currently, the commonly used coil processing stamping equipment in the industry suffers from the following technical pain points: Existing equipment suffers from several shortcomings: manual feeding of coiled material is inefficient, prone to deviation, and poses safety hazards; the lack of support and guiding structures leads to inaccurate stamping positioning and poor finished product quality; replacing the lower die requires disassembling multiple parts, which is cumbersome and results in poor equipment versatility; the unreasonable support structure leads to high frictional wear of components, resulting in poor equipment stability and short lifespan. Therefore, a stamping die for coiled material processing that can automatically feed material, accurately stamp, easily change dies, and has a stable structure is needed. Utility Model Content
[0003] In view of the shortcomings of the prior art, this utility model provides a stamping die for coil processing to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: A stamping die for coil processing, comprising: Basic support components, including: A horizontally positioned base plate, which is a rigid flat plate structure, is used to support the weight of the entire device; The U-shaped plate is fixedly installed on the top of the base plate with its opening facing upwards, and is used to provide installation support for the lower mold. The H-shaped plate is supported on top of the base plate by support rods, which are vertically fixed between the H-shaped plate and the base plate to form a stable frame structure. Automatic feeding components include: The ring frame is fitted onto the top of the U-shaped plate and is used to guide the coiled steel sheet in conjunction with the drive wheel; Multiple drive wheels are evenly distributed on the inner side of the annular frame to drive the coiled steel sheet to move; Multiple rotating wheels are connected one-to-one with the drive wheels to transmit power; The motors are symmetrically arranged on both sides of the device, and their output ends are connected to the second wheel; A transmission belt is fitted between pulley two and pulley one to transmit power between the motor and pulley one; Hydraulic rod one is set between the U-shaped plate and the annular frame, and its output end is fixedly connected to the annular frame to drive the annular frame to move up and down. Stamped components include: Hydraulic rod two is vertically installed below the H-shaped plate, and its fixed end is connected to the H-shaped plate; The upper mold is fixedly installed at the output end of hydraulic rod two and is used to cooperate with the lower mold to complete the stamping operation; The lower mold is detachably installed on the inside of the U-shaped plate, located directly below the upper mold, and is adapted to fit the upper mold.
[0005] Preferably, the two motors rotate in opposite directions. Because the device is symmetrically arranged, the opposite rotation directions ensure that when the transmission belt drives the first wheel and the drive wheel to rotate, the coiled steel plate can move stably in the preset direction.
[0006] Preferably, the inner wall of the annular frame is provided with a smooth and wear-resistant layer to reduce frictional loss when the annular frame comes into contact with the coiled steel sheet, and to ensure the surface quality of the coiled steel sheet during its movement.
[0007] Preferably, the contact surface between the lower mold and the U-shaped plate is provided with a positioning protrusion, and a positioning groove is provided at the corresponding position of the U-shaped plate. The lower mold can be quickly positioned and installed by the cooperation of the positioning protrusion and the positioning groove.
[0008] Preferably, both hydraulic rod one and hydraulic rod two adopt a double-acting hydraulic rod structure, which can realize bidirectional controllability of the extension and retraction direction, and meet the operational requirements of lifting and adjusting the ring frame and stamping and resetting the upper mold.
[0009] Compared with the prior art, the beneficial effects of this utility model are: 1. The stamping die for coil processing enables automated feeding and improves work efficiency: The automatic feeding assembly, consisting of a motor, two rotating wheels, a transmission belt, one rotating wheel and a drive wheel, eliminates the need for manual pushing of the coil steel plate. It can automatically drive the coil to move stably along the preset direction to the lower die, reducing manual intervention and labor costs. At the same time, it avoids the instability of manual feeding and greatly improves the overall efficiency of feeding and subsequent stamping.
[0010] 2. The stamping die used for coil processing has high stamping precision, ensuring processing quality: The device relies on a stable foundation support assembly composed of a base plate, support rods, and H-shaped plates, providing a stable mounting carrier for the hydraulic rod and the upper die, ensuring that the upper die can be precisely aligned with the lower die when it moves down; and the guiding effect of the annular frame on the coil steel plate can prevent the coil from moving or deviating. With double protection, the stamping process is more precise, effectively reducing coil processing defects caused by positioning deviations and improving the quality of finished products.
[0011] 3. The stamping die used for this coil material processing is easy to replace, enhancing the equipment's versatility: When it is necessary to replace the lower die to adapt to different processing requirements, simply control the hydraulic rod to move the annular frame upwards, and the lower die can be quickly removed from the inside of the U-shaped plate for replacement without disassembling the complex structure, making operation convenient; at the same time, the detachable design of the lower die allows the device to adapt to the processing of various specifications of coil materials, breaking the limitation of single processing and enhancing the equipment's versatility and applicability.
[0012] 4. The stamping die for this coil processing has a stable and reliable structure, extending the equipment's lifespan: The overall frame is vertically connected to the H-shaped plate and the base plate via support rods, and the U-shaped plate is fixed to the top of the base plate. The components are firmly connected, which can effectively disperse the force generated during stamping and prevent the device from deforming due to uneven stress. In addition, the smooth wear-resistant layer on the inner wall of the annular frame (if referring to the optimized structure) can reduce frictional wear between components, reduce the probability of equipment failure, and extend the overall service life. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is an exploded three-dimensional schematic diagram of the structure of this utility model; Figure 4 This is a three-dimensional schematic diagram of the base plate and related structures of this utility model.
[0014] In the diagram: 1. Base plate; 2. U-shaped plate; 3. Hydraulic rod one; 4. Circular frame; 5. Rotary wheel one; 6. Drive wheel; 7. Transmission belt; 8. Motor; 9. Rotary wheel two; 10. Lower mold; 11. Support rod; 12. H-shaped plate; 13. Hydraulic rod two; 14. Upper mold. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] Example: Please refer to the following: Figure 1-4 , A stamping die for coil processing, comprising: Basic support components, including: A horizontally positioned base plate 1, which is a rigid flat plate structure, is used to support the weight of the entire device; U-shaped plate 2 is fixedly installed on the top of base plate 1 with its opening facing upward, and is used to provide installation support for lower mold 10; The H-shaped plate 12 is mounted on top of the base plate 1 by a support rod 11. The support rod 11 is vertically fixed between the H-shaped plate 12 and the base plate 1 to form a stable frame structure. Automatic feeding components include: The annular frame 4 is fitted onto the top of the U-shaped plate 2 and is used to guide the coiled steel sheet in conjunction with the drive wheel 6. Multiple drive wheels 6 are evenly distributed on the inner side of the annular frame 4 to drive the coiled steel sheet to move; Multiple rotating wheels 5 are connected one-to-one with drive wheels 6 to transmit power; Motor 8 is symmetrically arranged on both sides of the device, and its output end is connected to a rotating wheel 9; The transmission belt 7 is fitted between the second pulley 9 and the first pulley 5 to realize the power transmission between the motor 8 and the first pulley 5; Hydraulic rod 3 is located between U-shaped plate 2 and annular frame 4, and its output end is fixedly connected to annular frame 4 to drive annular frame 4 to move up and down. Stamped components include: Hydraulic rod 13 is vertically installed below H-shaped plate 12, and its fixed end is connected to H-shaped plate 12; The upper mold 14 is fixedly installed at the output end of the hydraulic rod 13 and is used to cooperate with the lower mold 10 to complete the stamping operation. The lower mold 10 is detachably installed on the inside of the U-shaped plate 2, located directly below the upper mold 14, and is adapted to correspond with the upper mold 14.
[0017] Specifically, the support principle of the basic support components is as follows: The base plate 1 serves as the load-bearing foundation of the entire device. Through its rigid flat plate structure, it evenly transfers the weight of all components of the device to the mounting surface, ensuring the overall stability of the device; The U-shaped plate 2, with its top opening structure, provides a stable installation and positioning space for the lower mold 10, preventing the lower mold 10 from shifting during the stamping process; The H-shaped plate 12 forms a vertical support relationship with the base plate 1 through the support rod 11. The vertical fixing structure of the support rod 11 sets the H-shaped plate 12 at a preset height, providing an installation carrier for the stamping components and ensuring that sufficient space is reserved between the upper and lower molds 10 for the placement and stamping of the rolled material, forming a stable frame support system; The feeding principle of the automatic feeding component: When the device starts the automatic feeding function, the coiled steel plate is first inserted between the annular frame 4 and the drive wheel 6. The annular frame 4, through its structure that fits the top of the U-shaped plate 2, guides and limits the coiled steel plate to prevent it from shifting. Then, the motors 8 on both sides start, and the output end of the motor 8 drives the rotating wheel 9 to rotate. The rotating wheel 9 transmits power to the rotating wheel 5 connected to it through the transmission belt 7. Since the rotating wheel 5 is connected to the drive wheel 6 one-to-one, the rotating wheel 5 drives the drive wheel 6 to rotate synchronously. Multiple drive wheels 6 work together on the surface of the coiled steel plate to generate a driving force in a preset direction, realizing the automatic movement and feeding of the coiled steel plate. When it is necessary to replace the lower mold 10, the hydraulic rod 3 starts, and its output end pushes the annular frame 4 upward, so that the annular frame 4 separates from the U-shaped plate 2, making room for the lower mold 10 to be taken out from the inside of the U-shaped plate 2, which facilitates the mold replacement operation. The stamping principle of the stamping forming assembly: After the coiled steel sheet is conveyed to the surface of the lower die 10 and positioned by the automatic feeding assembly, the hydraulic rod 13 is activated. Its fixed end relies on the stable support provided by the H-shaped plate 12, and its output end drives the upper die 14 to move vertically downward. The upper die 14 and the lower die 10 are precisely aligned and fit together. Through the cavity cooperation of the two, pressure is applied to the coiled steel sheet to complete the stamping forming operation. After the stamping is completed, the hydraulic rod 13 drives the upper die 14 to return to its original position, waiting for the next coil feeding and stamping cycle. The detachable design of the lower die 10 allows for the replacement of the appropriate lower die 10 according to different coil processing requirements, improving the versatility of the device. In this embodiment: the two motors 8 rotate in opposite directions. Because the device is symmetrically arranged, the opposite rotation directions ensure that when the transmission belt 7 drives the rotating wheel 5 and the drive wheel 6 to rotate, the coiled steel plate can move stably in the preset direction. Specifically, since the motors 8 are symmetrically arranged on both sides of the device, if the two motors 8 rotate in the same direction, the two transmission belts 7 will drive the rotating wheel 5 and the drive wheel 6 to generate driving forces in opposite directions, which will cause the coiled steel sheet to be subjected to bidirectional tensile force, making it impossible to achieve stable movement, and may even cause coil wrinkles or equipment failure. Therefore, limiting the rotation direction of the two motors 8 to opposite directions can make the two transmission belts 7 drive the rotating wheel 5 and the drive wheel 6 to generate a rotation trend in the same direction. The driving force applied by the two drive wheels 6 to the coiled steel sheet is in the same direction, forming a coordinated feeding effect, ensuring that the coiled steel sheet moves smoothly along the preset direction, and avoiding the impact of power direction conflict on feeding efficiency and coil quality. In the embodiment: the inner wall of the annular frame 4 is provided with a smooth wear-resistant layer to reduce the friction loss generated when the annular frame 4 comes into contact with the coiled steel sheet, and to ensure the surface quality of the coiled steel sheet during the movement process. Specifically, during the automatic feeding process of coiled steel sheets, the inner wall of the annular frame 4 is in continuous contact with and slides relative to the surface of the coiled steel sheet. If the surface of the inner wall of the annular frame 4 is rough, it will generate a large frictional force with the coiled steel sheet. On the one hand, this may lead to quality problems such as scratches and wear on the surface of the coiled steel sheet. On the other hand, long-term friction will cause wear on the inner wall of the annular frame 4, shortening its service life. By setting a smooth wear-resistant layer on the inner wall of the annular frame 4, the coefficient of friction between the annular frame 4 and the coiled steel sheet can be significantly reduced, reducing frictional loss during the sliding process. This can protect the integrity of the surface of the coiled steel sheet, ensure the surface quality of the processed coil, extend the service life of the annular frame 4, and reduce equipment maintenance costs. In the embodiment: the contact surface between the lower mold 10 and the U-shaped plate 2 is provided with a positioning protrusion, and the corresponding position of the U-shaped plate 2 is provided with a positioning groove. The lower mold 10 can be quickly positioned and installed by the cooperation of the positioning protrusion and the positioning groove. Specifically, when replacing the lower die 10, if there is no positioning structure between the lower die 10 and the U-shaped plate 2, the position of the lower die 10 needs to be manually adjusted repeatedly to ensure that it is aligned with the upper die 14. This operation is cumbersome and has low positioning accuracy, which can easily lead to misalignment of the upper and lower dies 10 during stamping, affecting the processing quality. By setting a positioning protrusion on the contact surface between the lower die 10 and the U-shaped plate 2, and opening a positioning groove at the corresponding position on the U-shaped plate 2, when replacing the lower die 10, the positioning protrusion of the lower die 10 only needs to be embedded into the positioning groove of the U-shaped plate 2 to quickly achieve the initial positioning of the lower die 10 without repeated manual calibration. This shortens the die replacement time, ensures the alignment accuracy between the lower die 10 and the upper die 14, and improves the efficiency and stability of the stamping operation. In the embodiment: both hydraulic rod 13 and hydraulic rod 213 adopt a double-acting hydraulic rod structure, which can realize bidirectional controllability of the extension and retraction direction, and meet the operation requirements of lifting and adjusting the ring frame 4 and stamping and resetting the upper mold 14. Specifically, for hydraulic rod 3, when replacing the lower mold 10, it needs to move the annular frame 4 upward. After replacement, it needs to move the annular frame 4 downward to reset and fit against the top of the U-shaped plate 2 to achieve the guiding function. For hydraulic rod 13, during stamping, it needs to move the upper mold 14 downward to complete the stamping. After stamping, it needs to move the upper mold 14 upward to reset and wait for the next operation. The double-acting hydraulic rod has the characteristic of bidirectional extension and controllability. By controlling the oil flow at both ends of the hydraulic rod through the hydraulic system, the extension and retraction of the piston rod can be realized respectively. This perfectly meets the bidirectional action requirements of hydraulic rod 3 driving the annular frame 4 to lift and adjust, and hydraulic rod 13 driving the upper mold 14 to stamp and reset. This ensures that the actions of each actuator of the device are controllable and precise, and guarantees the smooth operation of the entire stamping process. In the embodiment: Hydraulic rod 13 and hydraulic rod 213 are existing structures, and the control circuit can be implemented by those skilled in the art through simple programming. They are common knowledge in the art and are only used without modification. Therefore, the control method and circuit connection will not be described in detail. Working principle: When this coil processing stamping die is working, the coil steel sheet is first inserted between the annular frame 4 and the drive wheel 6. The motors 8, rotating in opposite directions on both sides, are then started. Motors 8 drive the first wheel 5 and the drive wheel 6 to rotate in the same direction via the second rotating wheel 9 and the transmission belt 7, thereby driving the coil steel sheet to move stably onto the lower die 10 inside the U-shaped plate 2. Then, the hydraulic rod 13 below the H-shaped plate 12 is extended, causing the upper die 14 to move down and engage with the lower die 10, completing the stamping of the coil steel sheet. When the lower die 10 needs to be replaced, the hydraulic rod 3 is controlled to move the annular frame 4 up, allowing the lower die 10 to be removed from the U-shaped plate 2. The entire device is stabilized by a base support assembly consisting of the base plate 1 and support rods 11, achieving coordinated operation of automatic feeding and precise stamping.
[0018] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A stamping die for coil processing, characterized in that, include: Basic support components, including: A horizontally arranged base plate (1) is a rigid flat plate structure used to support the weight of the entire device; U-shaped plate (2) is fixedly installed on the top of the base plate (1), with its opening facing upward, to provide installation support for the lower mold; The H-shaped plate (12) is mounted on the top of the base plate (1) by a support rod (11). The support rod (11) is vertically fixed between the H-shaped plate (12) and the base plate (1) to form a stable frame structure. Automatic feeding components include: The ring frame (4) is fitted to the top of the U-shaped plate (2) and is used to guide the coiled steel plate in conjunction with the drive wheel; Multiple drive wheels (6) are evenly distributed on the inner side of the annular frame (4) to drive the coiled steel plate to move; Multiple rotating wheels (5) are connected one-to-one with the drive wheels (6) to transmit power; The motor (8) is symmetrically arranged on both sides of the device, and its output end is connected to the second wheel (9). The transmission belt (7) is fitted between the second wheel (9) and the first wheel (5) to realize the power transmission between the motor (8) and the first wheel (5); Hydraulic rod 1 (3) is set between U-shaped plate (2) and annular frame (4), and its output end is fixedly connected to annular frame (4) to drive annular frame (4) to move up and down; Stamped components include: Hydraulic rod 2 (13) is vertically set below the H-shaped plate (12), and its fixed end is connected to the H-shaped plate (12); The upper mold (14) is fixedly installed at the output end of the hydraulic rod (13) and is used to cooperate with the lower mold to complete the stamping operation; The lower mold (10) is detachably installed on the inside of the U-shaped plate (2), located directly below the upper mold (14), and is adapted to the upper mold (14).
2. The stamping die for coil processing according to claim 1, characterized in that: The two motors (8) rotate in opposite directions. Because the device is symmetrically arranged, the opposite rotation directions ensure that when the transmission belt (7) drives the first wheel (5) and the drive wheel (6) to rotate, the coiled steel plate can move stably in the preset direction.
3. The stamping die for coil processing according to claim 1, characterized in that: The inner wall of the annular frame (4) is provided with a smooth wear-resistant layer to reduce frictional loss when the annular frame (4) comes into contact with the coiled steel plate, and to ensure the surface quality of the coiled steel plate during the movement process.
4. The stamping die for coil processing according to claim 1, characterized in that: The contact surface between the lower mold (10) and the U-shaped plate (2) is provided with a positioning protrusion, and the corresponding position of the U-shaped plate (2) is provided with a positioning groove. The lower mold (10) can be quickly positioned and installed by the cooperation of the positioning protrusion and the positioning groove.
5. The stamping die for coil processing according to claim 1, characterized in that: Both hydraulic rod one (3) and hydraulic rod two (13) adopt a double-acting hydraulic rod structure, which can realize bidirectional controllability of the extension and retraction direction, and meet the operation requirements of lifting and adjusting the ring frame (4) and stamping and resetting the upper mold (14).