Spring flattening machine
By combining pneumatic and hydraulic telescopic rods with mold design, the diverse needs of spring flattening machines are addressed, achieving precise and uniform flattening results and flexible equipment adjustment, thereby improving production efficiency and mold maintainability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN CAILONG METAL SPRING MFG CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-26
Smart Images

Figure CN224406332U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of flattening machine technology, specifically relating to a spring flattening machine. Background Technology
[0002] Springs, as mechanical parts widely used in many fields such as machinery, automobiles, and electronics, play a vital role in many components, such as buffering, energy storage, and positioning. In different application scenarios, the requirements for the shape, size, and performance of springs vary. For many spring applications, precise shape and height are essential, which requires specific flattening treatment of springs to meet the installation and working requirements of corresponding components. Spring flattening machines are mainly used to flatten metal wires or spring materials into the required shape and size, mainly flattening round or irregularly shaped metal wires or spring materials into flat wires or flat sheets.
[0003] However, existing spring flattening machines on the market cannot meet diverse spring flattening needs. When faced with spring flattening tasks requiring different force or speed control, they are inadequate and cannot be flexibly adjusted. During the flattening process, the upper and lower dies lack positioning and guidance, which easily leads to misalignment during relative movement. This results in uneven pressure on the springs during flattening, making it difficult to ensure the consistency and accuracy of the flattening effect, affecting product quality. They are usually difficult to disassemble, adjust, or replace. If it is necessary to change the flattening specifications or maintain the mold, the operation is complicated, time-consuming, and labor-intensive, which may lead to production stoppage, reduced work efficiency, and increased production costs.
[0004] Therefore, it is of great importance to design a spring flattening machine to solve the above-mentioned defects. Utility Model Content
[0005] (1) Technical problems to be solved
[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a spring flattening machine. This device aims to solve the problem that the existing technology is unable to meet the diverse needs of spring flattening. When faced with some spring flattening tasks that require different force or speed control, it is inadequate and cannot be flexibly adjusted.
[0007] (2) Technical solution
[0008] To solve the above-mentioned technical problems, this utility model provides a spring flattening machine, including a base, an mounting frame provided on one side of the center of the upper end face of the base, a support frame provided on one side of the upper end face of the base, a pneumatic telescopic rod provided at the center of the upper end face of the mounting frame, the output end of the pneumatic telescopic rod passing through one side wall of the support frame to the other side of the support frame, and a flattening adjustment structure fixedly connected to the end of the pneumatic telescopic rod, a stabilizing frame provided on one side of the upper end face of the base, a hydraulic telescopic rod provided at the center of the inner wall of the stabilizing frame, and a flattening structure provided at both the output end of the hydraulic telescopic rod and the center of the upper end face of the base.
[0009] The flattening structure includes a base plate, which is located at the center of the upper end face of the base on one side. A lower mold is located at the center of the upper end face of the base plate. Two flattening grooves are arranged laterally at the center of the upper end face of the lower mold on one side. An upper plate is fixedly connected to the output end of the hydraulic telescopic rod. An upper mold is located at the center of the lower end face of the upper plate. Two flattening blocks are arranged laterally at the center of the lower end face of the upper mold on one side.
[0010] When using the device of this technical solution, the pneumatic telescopic rod and hydraulic telescopic rod are used in combination to provide power, which can meet the needs of various spring flattening scenarios. At the same time, the flattening groove of the lower mold is composed of four semicircles arranged to match the flattening block of the upper mold. Combined with the positioning and guidance of the protrusion and groove, precise and uniform pressure can be achieved. Furthermore, the upper and lower molds and the plate are connected by internal hex bolts, which facilitates disassembly and adjustment, improving versatility and maintainability. Flexible position adjustment can be achieved by pushing block, movable block, pin fixing plate and pin plate to adapt to different production requirements. The pressing groove and pressing block cooperate with each other to play a role in positioning and fine adjustment, enhancing the adaptability of the equipment.
[0011] Preferably, the flattening adjustment structure includes a push block, which is set on the output end of the pneumatic telescopic rod. A movable block is provided at the upper center of one side wall of the push block, and a pin fixing plate is provided at the center of the other side wall of the push block. A pin plate is provided at the center of the upper surface of the pin fixing plate.
[0012] Furthermore, four hexagon socket head cap screws are provided at the four opposite corners of the upper end face of the lower mold and the lower end face of the upper mold. One end of the four lower hexagon socket head cap screws passes through the upper end face of the lower mold and the upper end face of the base plate and leads to the interior of the base plate. The ends of the four upper hexagon socket head cap screws pass through the lower end face of the upper mold and the lower end face of the upper plate and lead to the interior of the upper plate. The ends of the four upper hexagon socket head cap screws are threaded and rotatably connected to the interior of the upper plate.
[0013] Furthermore, the two flattening grooves are composed of four semicircles arranged one after the other, and the two flattening grooves are respectively adapted to the two flattening blocks.
[0014] Furthermore, the upper mold has protrusions at the front and rear of the center of the lower end face, and the lower mold has grooves at the front and rear of the center of the upper end face, with the two grooves respectively matching the two protrusions.
[0015] Furthermore, a pressure groove is provided at the lower center of one side wall of the pin fixing plate, and a pressure block is provided at the upper center of one side wall of the bottom plate, with the pressure groove and the pressure block being mutually compatible.
[0016] Furthermore, one end of the pin fixing plate passes through the upper surface of the movable block and the upper surface of the pin plate, leading to the interior of the pin fixing plate.
[0017] (3) Beneficial effects
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] This utility model's device utilizes a combination of pneumatic and hydraulic telescopic rods to provide power, meeting the needs of various spring flattening scenarios. Simultaneously, the lower die flattening groove, composed of four semicircles, adapts to the upper die flattening block. Combined with the positioning and guiding of the protrusions and grooves, precise and uniform pressure is achieved. Furthermore, the upper and lower dies are connected to the plate body via hexagonal bolts, facilitating disassembly and adjustment, enhancing versatility and maintainability. Flexible position adjustment is achieved through the push block, movable block, pin fixing plate, and pin plate, adapting to different production requirements. The pressing groove and pressing block work together to provide positioning and fine-tuning, enhancing the equipment's adaptability. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 ;
[0021] Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ;
[0022] Figure 3 This is a schematic diagram of the overall structure of the present utility model. Figure 3 ;
[0023] Figure 4 This is a schematic diagram of the overall structure of the present utility model. Figure 4 ;
[0024] Figure 5 This is a three-dimensional disassembled structural diagram of the flattened structure of this utility model;
[0025] Figure 6 This is a three-dimensional disassembled structural diagram of the flattening adjustment structure of this utility model.
[0026] The markings in the attached diagram are as follows: 1. Base; 2. Mounting frame; 3. Support frame; 4. Pneumatic telescopic rod; 5. Flattening structure; 501. Base plate; 502. Lower mold; 503. Groove; 504. Flattening groove; 505. Upper plate; 506. Upper mold; 507. Protrusion; 508. Flattening block; 509. Hex socket head cap screw; 6. Flattening adjustment structure; 601. Pushing block; 602. Movable block; 603. Pin plate; 604. Pin fixing plate; 605. Pressing groove; 606. Pressing block; 7. Hydraulic telescopic rod; 8. Stabilizing frame. Detailed Implementation
[0027] This specific embodiment is a spring flattening machine, the structural diagram of which is shown below. Figure 1-6 As shown, the system includes a base 1, a mounting frame 2 located at the center of the upper surface of the base 1, a support frame 3 located on one side of the upper surface of the base 1, a pneumatic telescopic rod 4 located at the center of the upper surface of the mounting frame 2, the output end of the pneumatic telescopic rod 4 passing through one side wall of the support frame 3 to the other side of the support frame 3, and a flattening adjustment structure 6 fixedly connected to the end. A stabilizing frame 8 is located at the rear of one side of the upper surface of the base 1, and a hydraulic telescopic rod 7 is located at the center of the inner wall of the stabilizing frame 8. A flattening structure 5 is located at the output end of the hydraulic telescopic rod 7 and at the center of the upper surface of the base 1. Power is provided by the pneumatic telescopic rod 4 and the hydraulic telescopic rod 7 respectively. The pneumatic telescopic rod 4 is driven by air pressure to realize the extension and retraction of the output end, which is used to drive the flattening adjustment structure 6. The hydraulic telescopic rod 7 uses the pressure of hydraulic oil to realize the extension and retraction of the output end, thereby driving the relevant flattening structure 5 to meet the different needs of spring flattening operation.
[0028] First, in this embodiment, the specific structure of the flattened structure 5 is as follows:
[0029] The flattening structure 5 includes a base plate 501, which is located at the center of the upper end face of the base 1. A lower mold 502 is located at the center of the upper end face of the base plate 501. Two flattening grooves 504 are arranged laterally at the center of the upper end face of the lower mold 502. An upper plate 505 is fixedly connected to the output end of the hydraulic telescopic rod 7. An upper mold 506 is located at the center of the lower end face of the upper plate 505. Two flattening blocks 508 are arranged laterally at the center of the lower end face of the upper mold 506. A spring is placed in the flattening groove 504 of the lower mold 502. When the hydraulic telescopic rod 7 extends, it drives the upper plate 505 to move downward. The upper mold 506, which is fixed to the lower end face of the upper plate 505, moves downward as well, making the flattening operation more accurate and preventing the upper mold 506 and the lower mold 502 from shifting during relative movement. This ensures that the spring is flattened evenly and accurately.
[0030] Furthermore, the flattening adjustment structure 6 includes a push block 601, which is mounted on the output end of the pneumatic telescopic rod 4. A movable block 602 is located at the upper center of one side wall of the push block 601, and a pin fixing plate 604 is located at the center of the other side wall of the push block 601. A pin plate 603 is located at the center of the upper surface of the pin fixing plate 604. The push block 601 is moved by the output end of the pneumatic telescopic rod 4, and the movable block 602 is moved by the push block 601. The movable block 602 and the push block 601 are positioned and fixed by the pin plate 603 on the pin fixing plate 604, which facilitates installation and disassembly.
[0031] Then, four hexagon socket head cap screws 509 are provided at the four opposite corners of the upper end face of the lower mold 502 and the lower end face of the upper mold 506. One end of the four lower hexagon socket head cap screws 509 passes through the upper end face of the lower mold 502 and the upper end face of the base plate 501 respectively, and the ends are threaded and rotatably connected to the inside of the base plate 501. One end of the four upper hexagon socket head cap screws 509 passes through the lower end face of the upper mold 506 and the lower end face of the upper plate 505 respectively, and the ends are threaded and rotatable. The lower mold 502 is fixed to the base plate 501 by four hexagonal bolts 509 at the bottom of the upper plate 505. It can also be rotated through the threads to be connected to the inside of the base plate 501, so that the lower mold 502 is installed firmly and can be disassembled and adjusted if needed. The upper mold 506 is fixed to the upper plate 505 by four hexagonal bolts 509 at the top. It also serves to ensure a stable installation and facilitate the disassembly, maintenance or replacement of the upper mold 506 with different specifications to meet different spring flattening requirements.
[0032] Furthermore, the two flattening grooves 504 are composed of four semicircles arranged one after the other. Each of the two flattening grooves 504 is adapted to fit the two flattening blocks 508. The arrangement of the four semicircles in the two flattening grooves 504 allows for a better fit to the shape of the spring. When the upper mold 506 moves downwards under the action of the hydraulic telescopic rod 7, the flattening blocks 508 will embed into the corresponding flattening grooves 504. During this process, the tight fit between the flattening blocks 508 and the flattening grooves 504 applies uniform pressure to the spring located between them, causing the spring to be compressed at a specific location, thereby achieving the desired flattening effect.
[0033] The upper die 506 has protrusions 507 at the front and rear of the center of its lower end face, and the lower die 502 has grooves 503 at the front and rear of the center of its upper end face. The two grooves 503 are respectively matched with the two protrusions 507, which play a positioning and guiding role during the operation of the spring flattening machine. When the hydraulic telescopic rod 7 pushes the upper die 506 downward toward the lower die 502, the protrusions 507 will accurately fall into the corresponding grooves 503, ensuring the positioning accuracy of the upper die 506 and the lower die 502 during relative movement, limiting the possible offset of the upper die 506 and the lower die 502 in the horizontal direction, so that the flattening block 508 and the flattening groove 504 can maintain a precise alignment relationship.
[0034] Secondly, a pressure groove 605 is provided at the lower center of one side wall of the pin fixing plate 604, and a pressure block 606 is provided at the upper center of one side wall of the base plate 501. The pressure groove 605 and the pressure block 606 are mutually compatible. Through the mutual compatibility of the pressure groove 605 and the pressure block 606, the main function is to limit and fine-tune the position of the flattening adjustment structure 6. When the pneumatic telescopic rod 4 pushes the flattening adjustment structure 6 to move, the pressure block 606 will cooperate with the pressure groove 605 and embed into the pressure groove 605, playing a positioning role and locking the position of the flattening adjustment structure 6 to prevent it from shifting during operation, ensuring that the flattening adjustment structure 6 remains in a stable working position. When fine-tuning of the flattening operation is required, the pin fixing plate 604 is moved slightly by controlling the pneumatic telescopic rod 4, and the pressure block 606 and the pressure groove 605 move relative to each other. This allows the position adjustment of the flattening adjustment structure 6 within a small range to adapt to spring flattening operations of different sizes or process requirements, enhancing the adaptability of the equipment to different production needs.
[0035] Finally, one end of the pin fixing plate 604 passes through the upper surface of the movable block 602 and the upper surface of the pin plate 603, leading to the interior of the pin fixing plate 604. The movable block 602 can move or shift to a certain extent around the end of the pin fixing plate 604. By operating the pin plate 603, by loosening or fixing the pin plate 603, the relative position and fixed state between the movable block 602 and the pin fixing plate 604 can be changed. When the flattening adjustment structure 6 is adjusted, the pin plate 603 is loosened, so that the movable block 602 can move flexibly relative to the pin fixing plate 604. This, in conjunction with the actions of other components, achieves the required positional change of the flattening adjustment structure 6. After adjusting to the appropriate position, the pin plate 603 is fixed, so that the movable block 602 and the pin fixing plate 604 maintain a relatively fixed positional relationship, thereby locking the state of the flattening adjustment structure 6 at this time, ensuring the stable operation of the adjusted device, and ensuring the accuracy and consistency of the spring flattening process.
[0036] When using the device of this technical solution, the spring is placed in the flattening groove 504 of the lower mold 502. When the hydraulic telescopic rod 7 extends, it drives the upper plate 505 and the upper mold 506 fixed to its lower end face to move downward together. Since the two flattening grooves 504 and the two flattening blocks 508 are mutually adapted, and the flattening grooves 504 are composed of four semicircles arranged in a front-to-back manner, they can better fit the shape of the spring. During the movement, when the two come into contact, the flattening blocks 508 will embed into the corresponding flattening grooves 504. This tight fit achieves uniform pressure on the spring located therein, so that the spring is in a specific position. Under precise compression, the desired flattening effect is achieved. At the same time, the protrusion 507 and the groove 503 are mutually compatible. When the hydraulic telescopic rod 7 pushes the upper die 506 downward toward the lower die 502, the protrusion 507 accurately falls into the corresponding groove 503. It plays a key positioning and guiding role when the spring flattening machine is working. By limiting the horizontal displacement of the upper die 506 and the lower die 502, the positioning accuracy of the upper die 506 and the lower die 502 during relative movement is ensured. This ensures that the flattening block 508 and the flattening groove 504 always maintain a precise alignment relationship, thereby improving the accuracy and quality of spring flattening.
[0037] The pneumatic telescopic rod 4 is driven by air pressure, which moves the push block 601 at its output end. The push block 601 drives the movable block 602 to move. The movable block 602 is moved along with the push block 601. The pin fixing plate 604 and the pin plate 603 on one side of the upper end face are used to position and fix the connection between the movable block 602 and the push block 601, so as to realize the position adjustment of the flattening adjustment structure 6 within a small range, and enhance the adaptability of the equipment to spring flattening operations of different sizes or process requirements. When the pin plate 603 is released, the movable block 602 can move around the pin fixing plate 604. The flexible movement of the 04 end facilitates the position adjustment of the flattening adjustment structure 6, adapting to different spring processing requirements. After adjustment, the fixed pin plate 603 locks the relative position of the movable block 602 and the pin fixing plate 604, ensuring stable operation of the flattening adjustment structure 6. The pressure groove 605 and the pressure block 606 are mutually adapted to limit and fine-tune the position of the flattening adjustment structure 6. When the pneumatic telescopic rod 4 pushes the flattening adjustment structure 6 to move, the pressure block 606 is embedded in the pressure groove 605, playing a positioning role and locking the position of the structure to prevent displacement during operation.
[0038] In addition, the lower mold 502 is fixed to the base plate 501 by four hexagonal socket head cap bolts 509 at the bottom, and can be connected to the inside of the base plate 501 by threaded rotation, so that the lower mold 502 is installed firmly. When the equipment needs maintenance, repair or replacement of the lower mold 502 according to different spring flattening requirements, it can be easily disassembled and adjusted. The upper mold 506 is fixed to the upper plate 505 by four hexagonal socket head cap bolts 509 at the top, which not only plays a role in the stable installation, but also makes it convenient to disassemble and repair the upper mold 506 or replace it with a different specification of upper mold 506 when needed to meet different spring flattening process requirements.
[0039] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.
Claims
1. A spring flattening machine comprising a base (1); characterized in that, A mounting frame (2) is provided on one side of the center of the upper end face of the base (1). A support frame (3) is provided on the upper end face of the base (1) on one side of the mounting frame (2). A pneumatic telescopic rod (4) is provided at the center of the upper end face of the mounting frame (2). The output end of the pneumatic telescopic rod (4) passes through one side wall of the support frame (3) and extends to the other side of the support frame (3). A flattening adjustment structure (6) is fixedly connected to the end. A stabilizing frame (8) is provided on one side of the upper end face of the base (1) at the rear. A hydraulic telescopic rod (7) is provided at the center of the inner wall of the stabilizing frame (8). A flattening structure (5) is provided at the output end of the hydraulic telescopic rod (7) and on one side of the center of the upper end face of the base (1). The flattening structure (5) includes a base plate (501), which is located at the center of the upper end face of the base (1) on one side. A lower mold (502) is provided at the center of the upper end face of the base plate (501). Two flattening grooves (504) are arranged horizontally at the center of the upper end face of the lower mold (502) on one side. An upper plate (505) is fixedly connected to the output end of the hydraulic telescopic rod (7). An upper mold (506) is provided at the center of the lower end face of the upper plate (505). Two flattening blocks (508) are arranged horizontally at the center of the lower end face of the upper mold (506) on one side.
2. A spring flattening machine according to claim 1, wherein The flattening adjustment structure (6) includes a push block (601), which is set on the output end of the pneumatic telescopic rod (4). A movable block (602) is provided at the upper center of one side wall of the push block (601), and a pin fixing plate (604) is provided at the center of the other side wall of the push block (601). A pin plate (603) is provided at the center of the upper end face of the pin fixing plate (604) on one side.
3. A spring flattening machine according to claim 1, wherein The upper end face of the lower mold (502) and the lower end face of the upper mold (506) are provided with four hexagonal bolts (509) at four opposite corners. The lower four hexagonal bolts (509) have one end that passes through the upper end face of the lower mold (502) and the upper end face of the base plate (501) to the inside of the base plate (501), and the ends are threaded and rotatably connected to the inside of the base plate (501). The upper four hexagonal bolts (509) have one end that passes through the lower end face of the upper mold (506) and the lower end face of the upper plate (505) to the inside of the upper plate (505), and the ends are threaded and rotatably connected to the inside of the upper plate (505).
4. A spring flattening machine according to claim 1, characterized in that, The two flattening grooves (504) are composed of four semicircles arranged in front and behind each other, and the two flattening grooves (504) are respectively adapted to the two flattening blocks (508).
5. A spring flattening machine according to claim 1, characterized in that, The upper mold (506) has protrusions (507) at the front and rear of the center of the lower end face, and the lower mold (502) has grooves (503) at the front and rear of the center of the upper end face. The two grooves (503) are respectively adapted to the two protrusions (507).
6. A spring flattening machine according to claim 2, characterized in that, The pin fixing plate (604) has a pressure groove (605) at the lower center of one side wall, and a pressure block (606) is provided at the upper center of one side wall of the base plate (501). The pressure groove (605) and the pressure block (606) are mutually compatible.
7. A spring flattening machine according to claim 2, characterized in that, One end of the pin fixing plate (604) passes through the upper surface of the movable block (602) and the upper surface of the pin plate (603) to the interior of the pin fixing plate (604).