Modeling die and forming equipment for stretch forming spring with inner ring bending structure

Abstract

The utility model discloses a moulding mould and moulding equipment of stretch forming spring with inner ring bending structure, including mould body and moulding movable component, mould body is equipped with the transverse channel that the steel belt passes through and the action channel group that the moulding movable component acts, the action channel group is vertically arranged and is connected with the transverse channel, and the mould body is equipped with the mould body and the moulding movable component. A forming structure is arranged at the position, corresponding to the action channel set, of the transverse channel, the forming movable assembly comprises a first bending structure forming rod, a second bending structure forming rod and a bending structure cutting-off rod, and the action channel set comprises a first bending structure forming channel, a second bending structure forming channel and a bending structure cutting-off channel. The first bending structure forming rod and the second bending structure forming rod are arranged in the first bending structure forming channel and the second bending structure forming channel correspondingly, and a discharging groove is formed in the side portion of the die body. Compared with the prior art, the shaping of the bending structure of the inner ring of the spring can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of spring manufacturing, in particular to a molding die and molding equipment for a stretch-molded spring with an inner ring bending structure. Background Art

[0002] CN201910204229.X discloses a spring stretching process comprising the following steps: feeding; compacting; stretching a steel strip into shape; varying the diameter of the strip; and cutting. The stretching process stabilizes the dimensions of the formed steel strip spring, minimizing the error in the spring force, thereby expanding the application range of the spring. In particular, by varying the spring's forming dimensions, constant-force springs, variable-force springs, and special-force springs can be manufactured, broadening the application range of springs manufactured using the stretching process.

[0003] CN202410770587.8 discloses an automatic coil spring stretching machine, comprising a base and a steel strip pressing mechanism, a steering wheel, a first elastic trimming mechanism, a steel strip pulling mechanism, and a mold forming and cutting mechanism disposed on the base. The connecting line of the steel strip pressing mechanism, the steering wheel, the first elastic trimming mechanism, and the steel strip pulling mechanism forms a Z-shaped broken line structure. The first elastic trimming mechanism comprises a transverse cylinder, a first wheel frame, a first top wheel, a second top wheel, and a steering fixed shaft. The first wheel frame is connected to the transverse cylinder, and the first and second top wheels are disposed on the first wheel frame and are used to cooperate with the steering fixed shaft to apply stress to the steel strip. Compared with the prior art, the coil spring produced by the present invention has the advantage of stable elastic force.

[0004] The above technical solutions are all for forming coil springs, but they cannot meet the requirements under special working conditions. For example, when a spring needs to be bent into a three-dimensional structure, the above-mentioned spring stretching forming process and the technical solutions of the automatic coil spring stretching forming machine cannot achieve this.

[0005] Regarding spring molding, existing spring forming processes typically manufacture the spring without pre-deforming it. Currently, there is no solution for forming the spring after stress has been applied. This limits the flexibility of spring manufacturing and the variety of functions that can be achieved, making it difficult to meet specific engineering needs or product design requirements. Utility Model Content

[0006] The purpose of the utility model is to provide a molding die and molding equipment for stretching and molding a spring with an inner ring bending structure, which can realize the molding of the spring inner ring bending structure.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions:

[0008] A molding die for a stretch-forming spring with an inner ring bending structure comprises a mold body and a molding movable component, the mold body being provided with a transverse channel for a steel strip to pass through and an action channel group for the molding movable component to move, the action channel group being vertically arranged and connected to the transverse channel, a molding structure being provided at a position corresponding to the action channel group on the transverse channel, the molding movable component comprising a first bending structure molding rod, a second bending structure molding rod and a bending structure cutting rod, the action channel group comprising a first bending structure molding channel, a second bending structure molding channel and a bending structure cutting channel, the first bending structure molding rod and the second bending structure molding rod being respectively arranged in the first bending structure molding channel and the second bending structure molding channel, the bending structure cutting rod being arranged in the bending structure cutting channel, the second bending structure molding rod being located between the first bending structure molding rod and the bending structure cutting rod, and a unloading groove being provided on the side of the mold body.

[0009] In a preferred embodiment, the forming structure includes a first bending structure forming groove and a second bending structure forming groove, and the first bending structure forming groove and the second bending structure forming groove correspond to the positions of the first bending structure forming rod and the second bending structure forming rod respectively.

[0010] In a preferred embodiment, the forming structure further includes a bending structure cutting hole, and the bending structure cutting hole is connected to the bending structure cutting channel.

[0011] In a preferred embodiment, the mold body includes a plurality of blocks, and a bending mold mounting through hole is provided on the mold body for combining the plurality of blocks.

[0012] In a preferred embodiment, the first bending structure forming groove, the second bending structure forming groove and the bending structure cutting hole are arranged on the same block.

[0013] In a preferred embodiment, the first bending structure forming rod, the second bending structure forming rod and the bending structure cutting rod are provided with mounting components for mounting them on a forming device.

[0014] In a preferred embodiment, the mounting member includes a first mounting slider and a second mounting slider, the first mounting slider is arranged at the top of the first bending structure forming rod, and the second mounting slider is arranged at the top of the second bending structure forming rod and the bending structure cutting rod.

[0015] In a preferred embodiment, a mounting and fixing groove is provided on the side of the mold body.

[0016] A forming device comprises a forming die for stretching and forming a spring with an inner ring bending structure.

[0017] Compared to existing technologies, the present invention provides a molding die for stretch-forming springs with an inner ring bending structure. The steel strip used as the manufacturing material is inherently stressed, significantly interfering with the three-dimensional shaping of the spring. However, the transverse channel in this die constrains the steel strip, strictly limiting its range of motion as it passes through, ensuring that the strip remains relatively straight and fundamentally avoiding curling caused by stress. The first and second bending structure forming rods play a key role in shaping the spring's three-dimensional form. As the steel strip moves along the transverse channel, the first and second bending structure forming rods gradually apply force to the strip according to a pre-set procedure or shape requirement, shaping it into the desired three-dimensional shape. After the strip is shaped by the forming components, the bending structure cutting rod intervenes promptly, severing the strip with highly accurate cutting action. The first and second bending structure forming rods are responsible for the bending operation, with the second bending structure forming rod located between them, and the bending structure cutting rod is responsible for the cutting operation. The rods cooperate with each other to realize the three-dimensional shape of the spring bending structure. This arrangement makes the division of labor of each rod clear and cooperates to complete the specific structural forming of the spring.

[0018] The design of the discharge groove provides space for spring unloading. After the spring is processed, it can be unloaded smoothly from the discharge groove. This design optimizes the final step of the spring manufacturing process, allowing the spring to be easily removed from the mold and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a structural schematic diagram of a molding die for a stretch-molded spring with an inner ring bending structure.

[0020] Figure 2 The utility model is a structural schematic diagram of a molding die for a stretch-molded spring with an inner ring bending structure with part of the structure removed.

[0021] Figure 3 The utility model is a structural schematic diagram of a spring with an inner ring warping structure manufactured by a molding die for stretching and forming a spring with an inner ring bending structure.

[0022] In the picture

[0023] Mold body 1; transverse channel 2; first bending structure forming groove 3; second bending structure forming groove 4; bending structure cutting hole 5; first bending structure forming channel 6; second bending structure forming channel 7; bending structure cutting channel 8; block 9; first bending structure forming rod 10; second bending structure forming rod 11; bending structure cutting rod 12; first mounting slide 13; second mounting slide 14; mounting fixing groove 15; bending structure part 16. DETAILED DESCRIPTION

[0024] The present invention will be described in further detail below with reference to the accompanying drawings.

[0025] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0026] Example 1:

[0027] like Figures 1 to 3 As shown, a molding die for a stretch-forming spring with an inner ring bending structure comprises a mold body 1 and a molding movable component, the mold body 1 is provided with a transverse channel 2 for the steel strip to pass through and an action channel group for the molding movable component to move, the action channel group is vertically arranged and connected to the transverse channel 2, a molding structure is arranged at a position corresponding to the action channel group on the transverse channel 2, the molding movable component comprises a first bending structure molding rod 10, a second bending structure molding rod 11 and a bending structure cutting rod 12, the action channel group comprises a first bending structure molding channel 6, a second bending structure molding channel 7 and a bending structure cutting channel 8, the first bending structure molding rod 10 and the second bending structure molding rod 11 are respectively arranged in the first bending structure molding channel 6 and the second bending structure molding channel 7, the bending structure cutting rod 12 is arranged in the bending structure cutting channel 8, the second bending structure molding rod 11 is located between the first bending structure molding rod 10 and the bending structure cutting rod 12, and a unloading groove is provided on the side of the mold body 1.

[0028] In this embodiment, a mold for forming a spring with an inner ring bending structure is used. The steel strip used as the material is inherently stressed, significantly interfering with the three-dimensional formation of the spring. However, the transverse channel 2 in this mold constrains the steel strip, strictly limiting its range of motion as it passes through, ensuring that the strip remains relatively straight and fundamentally preventing curling caused by stress. The first bending structure forming rod 10 and the second bending structure forming rod 11 play a key role in shaping the spring's three-dimensional form. As the steel strip moves along the transverse channel 2, the first and second bending structure forming rods 10, 11 gradually apply force to the strip according to a pre-set procedure or shape requirement, shaping it into the desired three-dimensional shape. After the strip is formed by the forming member, the bending structure cutting rod 12 intervenes promptly to cut the strip with highly accurate cutting action. The first and second bending structure forming rods 10, 11 are responsible for the bending operation, with the second bending structure forming rod 11 located between them, and the bending structure cutting rod 12 is responsible for the cutting operation. The rods cooperate with each other to realize the three-dimensional shape of the spring bending structure. This arrangement makes the division of labor of each rod clear and cooperates to complete the specific structural forming of the spring.

[0029] The design of the discharge groove provides space for spring unloading. After the spring is processed, it can be unloaded smoothly from the discharge groove. This design optimizes the final step of the spring manufacturing process, allowing the spring to be easily removed from the mold and improving production efficiency.

[0030] Furthermore, the forming structure includes a first bending structure forming groove 3 and a second bending structure forming groove 4. The first bending structure forming groove 3 and the second bending structure forming groove 4 are respectively arranged to correspond to the positions of the first bending structure forming rod 10 and the second bending structure forming rod 11. The first bending structure forming groove 3 cooperates with the first bending structure forming rod 10, and the second bending structure forming groove 4 cooperates with the second bending structure forming rod 11. This corresponding relationship is the key to achieving the bending operation, enabling the spring to be precisely bent, thereby ensuring the accurate formation of the spring bending structure.

[0031] Furthermore, the forming structure includes a bending structure cutting hole 5, which is connected to the bending structure cutting channel 8. The arrangement of the bending structure cutting hole 5 provides space for the bending structure cutting rod 12 to move. During the spring manufacturing process, the bending structure cutting rod 12 needs to perform a cutting operation. The presence of the bending structure cutting hole 5 ensures that the cutting rod can complete this operation smoothly, ensuring the normal operation of the entire spring manufacturing process.

[0032] Furthermore, the mold body 1 includes a plurality of blocks 9, and a bending mold mounting through-hole is provided on the mold body 1 for combining a plurality of the blocks 9. The multi-block structure is very beneficial to mold manufacturing, and the bending mold mounting through-hole can realize the combination of the blocks 9. During installation, the rods on the molding assembly pass through the bending mold mounting through-hole to complete the assembly. This structure brings many benefits. On the one hand, when a certain block 9 is worn, it can be replaced or repaired in a targeted manner without the need for overall processing, which greatly reduces maintenance costs. On the other hand, it greatly improves the convenience of maintenance, reduces maintenance time and workload, and makes maintenance work more efficient. At the same time, this design also ensures the stability and reliability of the mold as a whole, helps to improve production efficiency, and can better adapt to production needs and maintain a good working condition in the long-term spring manufacturing process.

[0033] Furthermore, the first bending structure forming groove 3, the second bending structure forming groove 4, and the bending structure cutting hole 5 are located on the same block 9. This block 9 becomes the main workbench, or core component. This arrangement centralizes related operations, facilitates precise control of the bending and cutting processes, improves operational coordination, and facilitates management and maintenance of the core work area.

[0034] Furthermore, the first bending structure forming rod 10, the second bending structure forming rod 11, and the bending structure cutting rod 12 are provided with mounting members for mounting them on the forming equipment. The mounting members are used to accurately and securely attach the first bending structure forming rod 10, the second bending structure forming rod 11, and the bending structure cutting rod 12 to the forming equipment. They are a crucial connection between the rods and the forming equipment, ensuring the stability of each rod on the equipment, thereby ensuring that each rod can properly perform operations such as bending and cutting during the spring manufacturing process.

[0035] Furthermore, the mounting member includes a first mounting slider 13 and a second mounting slider 14. The first mounting slider 13 is arranged on the top of the first bending structure forming rod 10, and the second mounting slider 14 is arranged on the top of the second bending structure forming rod 11 and the bending structure cutting rod 12. The slider design brings significant technical effects. This structural form is extremely conducive to achieving a convenient installation process. Compared with traditional installation methods, the slider can be more smoothly docked with the forming equipment, reducing obstacles and adjustment links during installation. It not only improves installation efficiency, but also ensures the accuracy of the installation position of each rod, thereby providing protection for the accuracy of operations such as bending and cutting during the spring manufacturing process.

[0036] Furthermore, the side of the mold body 1 is provided with a mounting groove 15. The purpose of the mounting groove 15 is to mount the mold body 1 on the molding equipment. During installation, the molding equipment's fixing parts can be snapped into the mounting groove 15. This snap-fit ​​method ensures that the mold body 1 is stably mounted on the molding equipment, preventing mold shaking during the spring manufacturing process that could affect product quality, and providing the necessary stability for efficient and accurate spring manufacturing.

[0037] Example 2:

[0038] A forming device includes the mold for forming a spring with an inner ring bent structure and a stretching structure as described in Example 1. The mold for forming a spring with an inner ring bent structure and a stretching structure is mounted on the mold. To cooperate with the mold, the forming device is equipped with an electric push rod or a cylinder to drive the mold.

[0039] The above description of the embodiments is intended to facilitate understanding and use of the present invention by those skilled in the art. It is apparent that those skilled in the art can readily make various modifications to the embodiments and apply the general principles described herein to other embodiments without requiring creative effort. Therefore, the present invention is not limited to the above-described embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should fall within the scope of protection of the present invention.

Claims

1. A molding die for a spring with an inner ring bending structure, characterized in that: It includes a mold body and a forming movable component, the mold body is provided with a transverse channel for the steel strip to pass through and an action channel group for the forming movable component to move, the action channel group is vertically arranged and connected to the transverse channel, and a forming structure is provided at a position corresponding to the action channel group on the transverse channel, the forming movable component includes a first bending structure forming rod, a second bending structure forming rod and a bending structure cutting rod, the action channel group includes a first bending structure forming channel, a second bending structure forming channel and a bending structure cutting channel, the first bending structure forming rod and the second bending structure forming rod are respectively arranged in the first bending structure forming channel and the second bending structure forming channel, the bending structure cutting rod is arranged in the bending structure cutting channel, the second bending structure forming rod is located between the first bending structure forming rod and the bending structure cutting rod, and a unloading groove is provided on the side of the mold body.

2. The molding die for a spring with an inner ring bending structure for stretching according to claim 1, characterized in that: The forming structure includes a first bending structure forming groove and a second bending structure forming groove, and the first bending structure forming groove and the second bending structure forming groove are respectively arranged corresponding to the positions of the first bending structure forming rod and the second bending structure forming rod.

3. The molding die for a spring with an inner ring bending structure for stretching according to claim 2, characterized in that: The forming structure further includes a bending structure cutting hole, and the bending structure cutting hole is connected to the bending structure cutting channel.

4. The molding die for a spring with an inner ring bending structure for stretching and forming according to claim 1, characterized in that: The mold body includes a plurality of blocks, and a bending mold installation through hole is provided on the mold body for combining the plurality of blocks.

5. A molding die for a spring with an inner ring bending structure for stretching and forming according to claim 4, It is characterized by: The first bending structure forming groove, the second bending structure forming groove and the bending structure cutting hole are arranged on the same block.

6. The molding die for a spring with an inner ring bending structure for stretching and forming according to claim 1, characterized in that: The first bending structure forming rod, the second bending structure forming rod and the bending structure cutting rod are provided with mounting components for mounting them on the forming equipment.

7. The molding die for a spring with an inner ring bending structure stretched and formed according to claim 6, characterized in that: The mounting component includes a first mounting slider and a second mounting slider. The first mounting slider is arranged on the top of the first bending structure forming rod, and the second mounting slider is arranged on the top of the second bending structure forming rod and the bending structure cutting rod.

8. The molding die for a spring with an inner ring bending structure for stretching and forming according to claim 1, characterized in that: The side of the mold body is provided with an installation fixing groove.

9. A molding device, characterized in that: A molding die comprising a stretch-molded spring with an inner ring bending structure as described in any one of claims 1 to 8.

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