Automatic material taking device of bending die
By linking the cylinder-driven ejection mechanism with the electric push rod, the structural complexity and wear problems of existing automatic material feeding devices for bending dies are solved, achieving efficient, stable, and low-cost automatic material feeding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU WENCHAO AUTOMATION EQUIP CO LTD
- Filing Date
- 2025-10-11
- Publication Date
- 2026-07-14
AI Technical Summary
The existing automatic feeding device for bending dies has a complex linkage design between the feeding mechanism and the sliding mechanism, resulting in high maintenance costs and an increased failure rate. Wear on the fixed limit block and the movable limit device leads to positioning deviations and reduces processing efficiency.
The ejection mechanism, driven by a cylinder, is linked with an electric push rod. Through the cooperation of the movable rod and the fixed rod, the lower mold tilts and the structural components slide down automatically. Combined with the threaded rod and belt drive, synchronized operation is ensured.
The simplified structure reduces maintenance costs and failure rates, improves processing efficiency, and enables rapid material handling and stability.
Smart Images

Figure CN224487473U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of stamping equipment technology, specifically relating to an automatic material handling device for bending dies. Background Technology
[0002] Stamping equipment (also known as a press, stamping press, or hydraulic press) is a special type of equipment that uses a hydraulic or mechanical system to drive a die to apply pressure to metal materials, achieving plastic forming. Its core functions include blanking, bending, stretching, and forming processes, and it is widely used in automobile manufacturing, home appliances, electronics, and aerospace industries. Stamping equipment is used in the processing of elevator structural components. Through stamping, the die is used to create raised or recessed textures or specific shapes, suitable for processing components such as elevator car linings and guide rail covers.
[0003] An automatic material unloading device for stamping and bending dies, disclosed in publication number CN201821266568.8, includes a lower template, an upper template, a pulling mechanism, and a sliding mechanism. The lower template is fixed to the sliding mechanism, which includes a first mounting block, a sliding rod, a striking rod, and a support block. The first mounting block has a first mounting groove and a second mounting groove. The sliding rod is rotatably connected to the first mounting groove, and the striking rod is rotatably connected to the second mounting groove. The striking rod is rotatably connected to a connecting rod. The upper template is fixed to the pulling mechanism, which includes a second mounting block and a hook. The second mounting block has a through hole, and a hook is disposed within the through hole. The upper end of the hook is rotatably connected to the second mounting block, and a spring is fixed to the lower end of the hook. The other end of the spring is fixed to the second mounting block. This structure solves the problems of potential dangers and low efficiency during material handling in stamping operations. The novel structure and high safety make it worthy of promotion.
[0004] The aforementioned automatic unloading device for stamping and bending dies still has some defects. The patent adopts a linkage design of a pulling mechanism (including hooks and springs) and a sliding mechanism (including sliding rods and striking rods), which is complex and will lead to increased maintenance costs and a higher failure rate. The combination design of fixed limit blocks and movable limit devices may lead to positioning deviations due to long-term wear, which reduces processing efficiency. Therefore, we propose an automatic unloading device for bending dies. Utility Model Content
[0005] The purpose of this utility model is to provide an automatic material handling device for bending dies, in order to solve the problems mentioned in the background art. The patent adopts a linkage design of a material pulling mechanism (including hooks and springs) and a material sliding mechanism (including sliding rods and striking rods), which is complex in structure, leading to increased maintenance costs and a higher failure rate. The combination design of fixed limit blocks and movable limit devices may lead to positioning deviations due to long-term wear, reducing processing efficiency.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic material handling device for bending dies, comprising a fixed base and an upper die and a lower die. The lower die is provided on the top of the fixed base. The front of the lower die is rotatably connected to the front of the fixed base via a mounting shaft. A bending groove is provided inside the lower die. An L-shaped support plate is fixedly connected to the rear of the top of the fixed base. A cylinder is fixedly connected to the bottom of the L-shaped support plate. The upper die is fixedly connected to the bottom of the cylinder. A fixed rod is provided on both sides of the L-shaped support plate. The fixed rod is fixedly connected to the top of the fixed base. A movable rod is provided on the top of the fixed rod. The movable rod is rotatably connected to the top of the fixed rod. The front of the movable rod is fixedly connected to the rear of the lower die. An ejection mechanism is provided inside the fixed base. A fixed plate is provided on the inner side of the ejection mechanism. An ejection plate is fixedly connected to the top of the fixed plate. The top of the ejection plate is located below the bending groove.
[0007] Preferably, the fixed rod has a groove on its front side, and an electric push rod is provided inside the groove. The bottom of the electric push rod is rotatably connected to the bottom of the groove, and the top of the electric push rod is rotatably connected to the bottom of the movable rod.
[0008] Preferably, a movable component is fixedly connected to the bottom of the groove and the rear of the lower mold, and a movable block is fixedly connected to the top and bottom of the electric push rod, with the movable block rotatably connected inside the movable component.
[0009] Preferably, the ejection mechanism includes a support rod, a slide groove, and a slider. Two support rods are fixedly connected inside the fixed base. The support rods are provided with a slide groove, and the slide groove is provided with a slider. The slider is movably connected inside the slide groove, and the opposite ends of the two sliders are fixedly connected to both sides of the fixed plate.
[0010] Preferably, the slide groove is provided with a threaded rod inside, the threaded rod is rotatably connected inside the slide groove, the slider and the threaded rod are connected by threads, the bottom of the threaded rod extends to the outside of the support rod and is fixedly connected to a transmission wheel, the outside of the transmission wheel is provided with a belt, and a motor is provided at the bottom of the transmission wheel, the motor is fixedly connected to the bottom of the fixed seat.
[0011] Preferably, a control panel is provided on the right side of the fixing base, and the control panel is fixedly connected to the right side of the fixing base.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. By activating the ejection mechanism, the fixed plate moves the ejector plate upward until the structural component is pushed out of the lower mold. Then, the drive devices inside the two fixed rods are activated simultaneously, causing the movable rod to rotate at the top of the fixed rod. The movable rod drives the lower mold to rotate, and with the help of the set rotating shaft, the lower mold tilts. The structural component slides down the lower mold to the outside of the fixed seat for collection. The structure is simple, easy to operate, and reduces maintenance costs and failure rate. After stamping, the structural component can be quickly removed, improving processing efficiency.
[0014] 2. By starting the motor, the first transmission wheel rotates, which in turn drives the other transmission wheel to rotate via the belt. This allows the two threaded rods to rotate simultaneously, enabling the two sliders to move simultaneously within the groove. This synchronized operation improves the stability of the fixed plate and ejector rod during movement. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the internal structure of the fixing base of this utility model;
[0017] Figure 3 This is a schematic diagram of the ejection mechanism of this utility model;
[0018] Figure 4 This is a schematic diagram of the connection structure between the movable rod and the fixed rod of this utility model.
[0019] In the diagram: 1. Fixed base; 2. Upper mold; 3. Lower mold; 4. L-shaped support plate; 5. Cylinder; 6. Bending groove; 7. Fixed rod; 8. Movable rod; 9. Fixed plate; 10. Ejector plate; 11. Groove; 12. Electric push rod; 13. Movable part; 14. Movable block; 15. Support rod; 16. Slide groove; 17. Slider; 18. Threaded rod; 19. Transmission wheel; 20. Belt; 21. Motor; 22. Control panel. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1-4This utility model provides an automatic material handling device for bending dies: it includes a fixed base 1, an upper die 2, and a lower die 3. The lower die 3 is located on the top of the fixed base 1. The front of the lower die 3 is rotatably connected to the front of the fixed base 1 via a mounting shaft. The lower die 3 has a bending groove 6 inside. An L-shaped support plate 4 is fixedly connected to the rear of the top of the fixed base 1. A cylinder 5 is fixedly connected to the bottom of the L-shaped support plate 4. The bottom of the cylinder 5 is fixedly connected to the upper die 2. A fixing rod 7 is located on both sides of the L-shaped support plate 4. The fixing rod 7 is fixedly connected to the top of the fixed base 1. A movable rod 8 is located on the top of the fixing rod 7. The movable rod 8 is rotatably connected to the top of the fixing rod 7. The front of the movable rod 8 is fixedly connected to the rear of the lower die 3. An ejection mechanism is located inside the fixed base 1. A fixing plate 9 is located inside the ejection mechanism. The top of the fixing plate 9 is fixedly connected to the upper die 3. A fixed ejector plate 10 is connected, with its top positioned below the bending groove 6. The structural component is placed on the lower mold 3 and its position is fixed. After fixing, the cylinder 5 is activated via the control terminal, causing the upper mold 2 to move downwards and perform a stamping and bending operation on the structural component. After bending, the ejector mechanism is activated, causing the fixed plate 9 to move the ejector plate 10 upwards until the structural component is pushed out of the lower mold 3. Then, the drive devices inside the two fixed rods 7 are activated simultaneously, causing the movable rod 8 to rotate at the top of the fixed rod 7. The movable rod 8 drives the lower mold 3 to rotate, and with the help of the set rotating shaft, the lower mold 3 tilts. The structural component slides down the lower mold 3 to the outside of the fixed seat 1 for collection. The structure is simple, easy to operate, and reduces maintenance costs and failure rate. After stamping, the structural component can be quickly removed, improving processing efficiency.
[0022] Specifically, the fixed rod 7 has a groove 11 on its front side, and an electric push rod 12 is installed inside the groove 11. The bottom of the electric push rod 12 is rotatably connected to the bottom of the groove 11, and the top of the electric push rod 12 is rotatably connected to the bottom of the movable rod 8. By activating the electric push rod 12, the top and bottom of the electric push rod 12 rotate respectively, causing the movable rod 8 to rotate on the top of the fixed rod 7. By setting the electric push rod 12 to drive the movable rod 8 to rotate on the top of the fixed rod 7, the electric push rod 12 can achieve millimeter-level stroke control through the adjustment mechanism to meet the rotation requirements of different angles.
[0023] Specifically, a movable part 13 is fixedly connected to the bottom of the groove 11 and the rear of the lower mold 3. A movable block 14 is fixedly connected to the top and bottom of the electric push rod 12. The movable block 14 is rotatably connected inside the movable part 13. The movable block 14 rotates inside the movable part 13, which improves the flexibility of the electric push rod 12 when rotating.
[0024] Specifically, the ejection mechanism includes a support rod 15, a slide groove 16, and a slider 17. Two support rods 15 are fixedly connected inside the fixed base 1. The support rod 15 has a slide groove 16 inside, and the slide groove 16 has a slider 17 inside. The slider 17 is movably connected inside the slide groove 16. The opposite ends of the two sliders 17 are fixedly connected to the two sides of the fixed plate 9. By starting the drive device, the slider 17 moves inside the slide groove 16, which facilitates the ejection operation of the fixed plate 9 and the ejection rod 10.
[0025] Specifically, a threaded rod 18 is provided inside the slide groove 16. The threaded rod 18 is rotatably connected inside the slide groove 16. The slider 17 is connected to the threaded rod 18 by threads. The bottom of the threaded rod 18 extends to the outside of the support rod 15 and is fixedly connected to a transmission wheel 19. A belt 20 is provided on the outside of the transmission wheel 19. A motor 21 is provided at the bottom of one transmission wheel 19. The motor 21 is fixedly connected to the bottom of the fixed base 1. By starting the motor 21, the first transmission wheel 19 rotates, which drives the other transmission wheel 19 to rotate, thereby realizing the simultaneous rotation of the two threaded rods 18 and allowing the two sliders 17 to move simultaneously inside the slide groove 16. This synchronized operation improves the stability of the fixed plate 9 and the ejector rod 10 when they move.
[0026] Specifically, a control panel 22 is provided on the right side of the fixed base 1. The control panel 22 is fixedly connected to the right side of the fixed base 1. The control panel 22 facilitates the start and stop of the cylinder 5, electric push rod 12 and motor 21, bringing convenience to the overall automated operation of the device.
[0027] In this implementation scheme, when stamping and bending the elevator structural components, the structural components are placed on the lower mold 3, and the upper mold 2 moves down to perform the stamping and bending operation on the structural components. After bending, the ejection mechanism is activated to push the structural components out of the lower mold 3. At the same time, the drive devices inside the two fixed rods 7 are activated, causing the movable rod 8 to rotate at the top of the fixed rod 7. The movable rod 8 drives the lower mold 3 to rotate, and with the help of the set rotating shaft, the lower mold 3 tilts. The structural components slide down the lower mold 3 to the outside of the fixed seat 1 for collection. The structure is simple, the operation is easy, and the maintenance cost and failure rate are reduced. After stamping, the structural components can be quickly removed, improving processing efficiency.
[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0029] 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. An automatic material handling device for bending dies, comprising a fixed base (1) and an upper die (2), and a lower die (3), characterized in that: The fixed base (1) is provided with a lower mold (3) at the top. The front of the lower mold (3) is rotatably connected to the front of the fixed base (1) via a mounting shaft. The lower mold (3) is provided with a bending groove (6) inside. An L-shaped support plate (4) is fixedly connected to the rear of the top of the fixed base (1). A cylinder (5) is fixedly connected to the bottom of the L-shaped support plate (4). An upper mold (2) is fixedly connected to the bottom of the cylinder (5). A fixed rod (7) is provided on both sides of the L-shaped support plate (4). The fixed rod (7) is fixedly connected to the top of the fixed base (1). A movable rod (8) is provided at the top of the fixed rod (7). The movable rod (8) is rotatably connected to the top of the fixed rod (7) at the rear. The movable rod (8) is fixedly connected to the rear of the lower mold (3) at the front. An ejection mechanism is provided inside the fixed base (1). A fixed plate (9) is provided on the inner side of the ejection mechanism. An ejection plate (10) is fixedly connected to the top of the fixed plate (9). The top of the ejection plate (10) is located below the bending groove (6).
2. The automatic material handling device for a bending die according to claim 1, characterized in that: The fixed rod (7) has a groove (11) on its front side. An electric push rod (12) is provided inside the groove (11). The bottom of the electric push rod (12) is rotatably connected to the bottom of the groove (11), and the top of the electric push rod (12) is rotatably connected to the bottom of the movable rod (8).
3. The automatic material handling device for a bending die according to claim 2, characterized in that: A movable part (13) is fixedly connected to the bottom of the groove (11) and the rear of the lower mold (3). A movable block (14) is fixedly connected to the top and bottom of the electric push rod (12). The movable block (14) is rotatably connected inside the movable part (13).
4. The automatic material handling device for a bending die according to claim 1, characterized in that: The ejection mechanism includes a support rod (15), a groove (16), and a slider (17). The fixed base (1) has two support rods (15) fixedly connected inside. The support rod (15) has a groove (16) inside. The groove (16) has a slider (17) inside. The slider (17) is movably connected inside the groove (16). The opposite ends of the two sliders (17) are fixedly connected to both sides of the fixed plate (9).
5. The automatic material handling device for a bending die according to claim 4, characterized in that: The slide groove (16) is provided with a threaded rod (18) inside. The threaded rod (18) is rotatably connected inside the slide groove (16). The slider (17) is connected to the threaded rod (18) by a thread. The bottom of the threaded rod (18) extends to the outside of the support rod (15) and is fixedly connected to a transmission wheel (19). The outside of the transmission wheel (19) is provided with a belt (20). A motor (21) is provided at the bottom of one of the transmission wheels (19). The motor (21) is fixedly connected to the bottom of the fixed seat (1).
6. The automatic material handling device for a bending die according to claim 1, characterized in that: The right side of the fixed base (1) is provided with a control panel (22), which is fixedly connected to the right side of the fixed base (1).