A heat setting mold and heat setting device for processing spring rings

Abstract

The embodiment of the present application provides a heat setting mold and heat setting device for processing spring ring, and relates to the technical field of medical instrument processing. The heat setting mold for processing spring ring comprises a forming main body block and a plurality of forming mold rods. The surface of the forming main body block is provided with a plurality of plug-in holes. The forming mold rod is at least divided into a first end part and a forming part along the axial direction. The outer diameter of the forming part is greater than that of the first end part. The first end part of the forming mold rod can be detachably plugged into the plug-in hole, and the forming part can form a first clamping groove with the forming main body block. The heat setting mold for processing spring ring in the heat setting mold and heat setting device of the embodiment of the present application can be assembled according to the needs, meet the processing needs of spring rings with different configurations, and easily realize accurate winding and fixing of the spring, thereby reducing the processing cost of the spring ring and improving the processing efficiency of the spring ring.

Description

Technical Field

[0001] This application relates to the field of medical device processing technology, and more specifically, to a heat-setting mold and heat-setting device for processing spring coils. Background Technology

[0002] Cerebral aneurysms, also known as intracranial aneurysms, seriously affect people's health. With the development of imaging technology and endovascular biomaterials, endovascular interventional therapy has replaced surgical aneurysm clipping surgery as one of the preferred methods for treating intracranial aneurysms due to its lower risk and less trauma compared to surgical treatment. Endovascular embolization with coils is currently the main method for treating aneurysms. This typically involves using coils to embolize the aneurysm, forming a predetermined shape within the aneurysm to achieve the desired embolization effect. For aneurysm treatment, the immediate density of the embolization is a crucial factor affecting the long-term stability of the embolization result; therefore, the greater the density of the coil packing, the more beneficial the clinical outcome for aneurysm treatment.

[0003] Coil embolization systems are typically composed of a single wound spring. Specifically, the spring is wound and fixed onto a thermosetting mold, and then processed using a thermosetting process. Traditional coil shapes are generally spherical or linear spirals. However, for embolization coil systems used in intracranial aneurysms, because aneurysms come in many shapes, especially atypical aneurysms, using traditional spherical or linear spiral coils for embolization presents significant challenges, often resulting in incomplete embolization and impacting recurrence rates.

[0004] Therefore, it is necessary to design corresponding irregular embolization coils for aneurysms of different shapes, and the heat-setting molds for irregular embolization coils also need to be changed as needed, which increases the processing cost of the coils; moreover, during the heat-setting process, it is difficult to accurately wind and fix the springs on the conventional heat-setting mold, resulting in low processing efficiency. Utility Model Content

[0005] The purpose of this application is to provide a heat-setting mold and heat-setting device for processing spring coils. The heat-setting mold can be assembled and combined according to requirements to meet the processing needs of spring coils with different configurations, and it is easy to achieve accurate winding and fixing of springs, thereby reducing the processing cost of spring coils and improving the processing efficiency of spring coils.

[0006] In a first aspect, embodiments of this application provide a heat-setting mold for processing spring coils, comprising: A molding main block, the surface of which is provided with a plurality of insertion holes; A plurality of forming mold rods, wherein the forming mold rods are at least divided into a first end and a forming part along their axial direction, the outer diameter of the forming part is larger than the outer diameter of the first end, the first end of the forming mold rod can be detachably inserted into the insertion hole, and the forming part can form a first snap-fit ​​groove with the forming main block.

[0007] In the above process, the heat-setting mold includes a forming main block and a forming mold rod. The forming mold rod has a first end and a forming part. The first end is detachable and can be assembled and combined according to requirements to meet the processing needs of spring coils with different configurations. The forming part is used for the heat forming of the spring and forms a snap-fit ​​groove for fixing the spring, which makes it easy to accurately wind and fix the spring, thereby reducing the processing cost of the spring coil and improving the processing efficiency of the spring coil.

[0008] In one possible implementation, the molding body block is spherical, and the diameter of the molding body block is 1mm-50mm.

[0009] In the above process, the forming main block is used to shape the overall outline of the spring coil. The overall size of its sphere can be varied, and spring coils of different sizes can be shaped. The variation range is between 1mm and 50mm to meet the needs of different affected areas for spring coil size.

[0010] In one possible implementation, the included angle between the axial directions of adjacent insertion holes is 1°-180°.

[0011] In the above implementation process, the included angle between the two plug holes can be varied, ranging from 1° to 180°. By changing the size of the included angle, the configuration of the local spring coil can be controlled.

[0012] In one possible implementation, the first end is cylindrical, with a diameter of 1mm-50mm and a length of 1mm-50mm.

[0013] And / or, the forming part is cylindrical, with a diameter of 1mm-50mm and a length of 1mm-50mm.

[0014] In the above implementation process, the length and diameter of the first end can be varied according to the size of the main body block to be connected, and the diameter and length of the forming part can also be varied. This variation is to shape spring coils with different local shapes.

[0015] In one possible implementation, the first end of the molding rod is fully inserted into the insertion hole, and the molding part and the molding main body block partially contact each other to form the first snap-fit ​​groove; Alternatively, the first end portion of the molding rod is inserted into the insertion hole, and the first snap-fit ​​groove is formed between the molding part, the exposed first end portion, and the molding main body block.

[0016] In the above implementation process, the first card slot can be formed according to the above structural form to meet actual needs.

[0017] In one possible implementation, at least a portion of the molding rods are axially divided into a first end, a molding portion, and a second end, wherein the outer diameter of the second end is larger than the outer diameter of the molding portion, and the molding rods are configured such that the second end can be detachably inserted into the insertion hole, and a second snap-fit ​​groove is formed between the molding portion and the molding main block after insertion.

[0018] In the above implementation process, the axial direction of the forming mold rod is divided into a first end, a forming part and a second end. The function of the second end is the same as that of the first end, which is used for positioning the spring and connecting the two forming main blocks, further enriching the assembly form of the heat-setting mold.

[0019] In one possible implementation, the second end is cylindrical, with a diameter of 1mm-50mm and a length of 1mm-50mm.

[0020] In one possible implementation, the number of the molding body blocks is at least two, and the two molding body blocks are connected by the molding rod having the first end and the second end.

[0021] In the above process, multiple molding blocks can be connected to form a new molding die, which can produce spring coils of different shapes.

[0022] In one possible implementation, the first end is connected to the insertion hole using a threaded or tenon-and-mortise joint.

[0023] In the above implementation process, quick-release structures such as threaded structures or tenon and mortise structures are adopted to achieve a detachable plug-in structure.

[0024] Secondly, embodiments of this application provide a heat-setting device for processing spring coils, which includes a container, a vent pipe, and a heat-setting mold provided in the first aspect. The container has an inner cavity for accommodating the heat-setting mold, and the vent pipe is connected to the inner cavity of the container for introducing chlorine gas into the container during the heat-setting process.

[0025] In the above process, heat setting technology is used to process spring coils of different configurations. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of a heat-setting mold provided in the first embodiment of this application; Figure 2 for Figure 1 A schematic diagram of the structure of the main molding block in the middle; Figure 3 for Figure 1 A schematic diagram of the forming die rod in the middle; Figure 4 This is a schematic diagram of the structure of a heat-setting mold provided in the second embodiment of this application; Figure 5 for Figure 4 A schematic diagram of the forming die rod in the middle; Figure 6 This is a schematic diagram of the structure of a heat-setting mold provided in the third embodiment of this application; Figure 7 for Figure 6 A structural diagram from another perspective; Figure 8 for Figure 6 A schematic diagram of the structure of the main molding block in the middle; Figure 9 This is a schematic diagram of the structure of a heat-setting mold provided in the fourth embodiment of this application; Figure 10 for Figure 9 A structural diagram from another perspective.

[0028] Icons: 100-Heat setting mold; 110-Main forming block; 111-Intercepting hole; 120-Main forming rod; 121-First end; 122-Main forming part; 130-First snap-fit ​​groove; 200 - Heat setting mold; 220 - Forming mold rod; 221 - First end; 222 - Forming part; 223 - Second end; 300 - Heat setting mold; 310 - Molding main body block; 320 - Molding mold rod; 330 - First retaining groove; 400 - Heat setting mold; 410 - First molding main block; 420 - Molding mold rod; 430 - Second molding main block; 440 - Third molding main block. Detailed Implementation

[0029] Existing coil structures include both three-dimensional and two-dimensional structures. In most cases, a specific three-dimensional structure needs to be paired with a specific two-dimensional structure to form a complete coil. The purpose of the three-dimensional structure is to construct a stable framework within the aneurysm cavity and provide support at the aneurysm neck, while the purpose of the two-dimensional structure is to uniformly fill the open space within the aneurysm to achieve a dense occlusion effect. However, the existing three-dimensional coil structures have a significant drawback: they struggle to balance stable occlusion with compliant filling. For example, coils with basic components in the form of a single figure-eight, O-shape, or Ω-shape are difficult to compress and have poor compliance, thus failing to meet the embolization requirements for aneurysms of different shapes and sizes.

[0030] Existing coil systems include three-dimensional and two-dimensional coils. In most cases, three-dimensional coils need to be used in conjunction with two-dimensional coils to form a complete coil system. The three-dimensional coil is mainly used to form a basket loop and create a spatial framework within the aneurysm, providing stable support and covering open areas. The two-dimensional coil is then used to fill the remaining space within the aneurysm, ultimately achieving dense embolization. For embolization coil systems applied to intracranial aneurysms, the use of traditional spherical or linear spiral coils presents significant challenges due to the diverse shapes of aneurysms, especially atypical aneurysms. These coils cannot fully conform to the aneurysm's morphology, resulting in incomplete embolization.

[0031] Therefore, it is necessary to design corresponding irregular embolization coils for aneurysms of different shapes, and the heat-setting molds for irregular embolization coils also need to be changed as needed, which increases the processing cost of the coils; moreover, during the heat-setting process, it is difficult to accurately wind and fix the springs on the conventional heat-setting mold, resulting in low processing efficiency.

[0032] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this application, it should be noted that the terms "center," "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only used for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] First Embodiment Please refer to Figure 1 , Figure 2 and Figure 3This embodiment provides a heat-setting mold 100 for processing spring coils, which includes a molding main body block 110 and a plurality of molding rods 120. A plurality of insertion holes 111 are distributed on the surface of the molding main body. Each molding rod 120 is at least divided into a first end 121 and a molding portion 122 along its axial direction. The outer diameter of the molding portion 122 is larger than the outer diameter of the first end 121. The molding rod 120 is configured such that the first end 121 can be detachably inserted into the insertion hole 111, and a first snap-fit ​​groove 130 is formed between the molding portion 122 near the first end 121 and the molding main body block 110 after insertion. In this embodiment, the total number of insertion holes 111 is 6; the corresponding number of molding rods 120 that can be inserted is at most 6. All molding rods 120 have the same structure. A single molding rod 120 is axially divided into a first end 121 and a molding portion 122.

[0039] In practical applications, the three-dimensional spring coil is composed of multiple elastic units. These elastic units are obtained by winding a spring around a heat-setting mold 100 and then heat-treating it. Specifically, by winding the spring around the molding main block 110 and / or the molding die rod 120 in an "Ω" shape, a three-dimensional sphere composed of rings with different curvatures (the rings can be regular or irregular O-shaped, Ω-shaped, U-shaped, etc.) is obtained, which is the elastic unit. After fixing the spring onto the heat-setting mold 100, the heat-setting mold 100 with the spring wound on it is placed in a heat treatment device, heated, and heat-treated to set the shape, thus obtaining the spring coil.

[0040] In this embodiment, the molding main block 110 is used to shape the overall outline of the spring coil, and the molding die 120 is used to shape the partial outline of the spring coil. Through the molding main block 110 and the molding die 120, spring coils with the same overall outline but different partial outlines can be shaped. The molding die 120 is a partial shaping component, which has two parts: a first end 121 for a connecting mechanism that matches the insertion hole 111 in the molding main block 110, and a shaping part 122 for shaping the partial shape of the spring coil. The heat-setting mold 100 is used for heat-setting the spring coil. For spring coils requiring different configuration combinations, the mold can be assembled to meet this requirement, enabling the splicing of different spherical spring coils.

[0041] The heat-setting mold 100 includes a forming main block 110 and a forming mold rod 120. The forming mold rod 120 has a first end 121 and a forming part 122. The first end 121 is detachable and can be assembled and combined as needed to meet the processing requirements of spring coils with different configurations. The forming part 122 is used for the heat forming of the spring and forms a snap-fit ​​groove for fixing the spring, which makes it easy to accurately wind and fix the spring, thereby reducing the processing cost of the spring coil and improving the processing efficiency of the spring coil.

[0042] By combining the main body block 110 and the molding rod 120 with different specifications and sizes, spring coils of different specifications and configurations can be formed to meet different embolization and packing needs. Spring coils of different shapes can be formed by combining different configurations to meet the customized needs of clinical use. The quick-release method can complete the switching between different specifications of spring coils, which can greatly save production costs and eliminate the need to change the mold for each specification.

[0043] In some alternative embodiments of this application, the first end 121 and the insertion hole 111 are connected together by a threaded structure or a tenon structure.

[0044] In this embodiment, a quick-release structure such as a threaded structure or a tenon structure is adopted to achieve a detachable plug-in structure.

[0045] In some alternative embodiments of this application, the threaded structure is configured such that the first end 121 has an external thread and the insertion hole 111 has a matching internal thread.

[0046] In some alternative embodiments of this application, the mortise and tenon structure is configured such that the first end 121 is frustum-shaped and the insertion hole 111 is a matching frustum-shaped.

[0047] In some optional embodiments of this application, the molding main body block 110 is spherical, and the diameter of the molding main body block 110 is 1mm-50mm.

[0048] In this embodiment, the molding main block 110 is used to shape the overall outline of the spring coil. The overall size of its sphere can be varied, and spring coils of different sizes can be shaped. The variation range is between 1mm and 50mm to meet the needs of different affected areas for spring coil size. In addition, the diameter and length of the insertion hole 111 are mainly matched with the first end 121, and the variation range is between 1mm and 50mm.

[0049] In some alternative embodiments of this application, the included angle between the axial directions of adjacent insertion holes 111 is 1°-180°.

[0050] In this embodiment, the included angle between the two insertion holes 111 can be varied, ranging from 1° to 180°. By changing the size of the included angle, the configuration of the local spring coil can be controlled.

[0051] In some optional embodiments of this application, the first end 121 is cylindrical, with a diameter of 1mm-50mm and a length of 1mm-50mm.

[0052] And / or, the forming part 122 is cylindrical, with a diameter of 1mm-50mm and a length of 1mm-50mm.

[0053] In this embodiment, the length and diameter of the first end 121 can vary according to the size of the sphere of the connecting molding main block 110, and the diameter and length of the molding part 122 can also vary. This variation is to shape spring coils with different local shapes.

[0054] In this embodiment, the first snap-fit ​​groove 130 is formed as follows: the first end 121 of the molding rod 120 is inserted into the insertion hole 111, and the first snap-fit ​​groove 130 is formed between the molding part 122, the exposed first end 121 and the molding main block 110.

[0055] In this embodiment, the outer diameter of the molding part 122 is larger than the outer diameter of the first end 121. The first snap-fit ​​groove 130 can be formed by the combination of the exposed first end 121 and the molding main body block 110 using the molding part 122. The shape of the molding main body block 110 is not required in this formation method of the first snap-fit ​​groove 130. The molding main body block 110 can be spherical or other shapes, such as cylindrical.

[0056] Second Embodiment Please refer to Figure 4 and Figure 5 This embodiment provides a heat-setting mold 200 for processing spring coils, which differs from the first embodiment in that: in some optional embodiments of this application, at least a portion of the forming mold rods 220 are axially divided into a first end 221, a forming part 222, and a second end 223. The outer diameter of the second end 223 is larger than the outer diameter of the forming part 222. The forming mold rods 220 are configured such that the second end 223 can be detachably inserted into the insertion hole 111, and after insertion, the forming part 222 near the second end 223 forms a second snap-fit ​​groove with the forming main body block 110. The diameter and length of the insertion hole 111 are mainly matched with the first end 221 and the second end 223.

[0057] In this embodiment, all the forming rods 220 have the same structure. Taking a single forming rod 220 as an example, its axial direction is divided into a first end 221, a forming part 222, and a second end 223. The function of the second end 223 is the same as that of the first end 221, which is used for positioning the spring and connecting the two forming main blocks 110, further enriching the assembly form of the heat-setting mold 200.

[0058] In this embodiment, the molding rod 220 has three parts: the first end 221 is a connecting mechanism for matching the insertion hole 111 in the molding main block 110; the molding part 222 is a local shaping area for shaping a local shape of the spring coil; and the second end 223 is a spring fixing mechanism during shaping, which can also realize the function of the first end 221, and is a connecting mechanism for matching the insertion hole 111 in the molding main block 110.

[0059] In some optional embodiments of this application, the second end 223 is cylindrical, with a diameter of 1mm-50mm and a length of 1mm-50mm.

[0060] In this embodiment, the second end 223 serves to fix the spring and the connecting structure, and its length and diameter can vary according to the size of the sphere of the main body block 110.

[0061] In addition, this embodiment also provides a heat setting device for processing spring coils, which includes a container, a vent pipe and the heat setting mold 200 of the aforementioned embodiment. The container has an inner cavity for accommodating the heat setting mold 200, and the vent pipe is connected to the inner cavity of the container for introducing chlorine gas into the container during the heat setting process.

[0062] In one embodiment, the heat-setting device is applied in the processing of vascular embolization spring coil assemblies. The heat-setting device includes: a container having an inner cavity for accommodating a heat-setting mold 200 with a spring wound around it; and a vent pipe connected to the container body for introducing chlorine gas into the container body during the heat treatment process.

[0063] Accordingly, the processing technology of the vascular embolization spring coil assembly can adopt the following technical solution: provide a spring and wind the spring onto a heat-setting mold 200; place the heat-setting mold 200 with the spring wound on it in a container of a heat-setting device and fill it with chlorine gas through a vent pipe; heat the heat-setting mold 200 in the container after filling it with chlorine gas to prepare the spring coil using the spring.

[0064] Third Embodiment Please refer to the following: Figure 6 , Figure 7 and Figure 8 The heat-setting mold 300 for processing spring coils provided in this embodiment differs from that in the second embodiment in that: the heat-setting mold 300 in this embodiment includes a forming main block 310 and a plurality of forming mold rods 320, wherein the forming main block 310 is an irregular structure, specifically a spherical structure, and is flattened at two opposite points and provided with insertion holes 111, the total number of insertion holes 111 is 8; the number of correspondingly inserted forming mold rods 320 can be up to 8, and the dimensions of each part of each forming mold rod 320 can be extended and adjusted.

[0065] In this embodiment, for the irregularly shaped molding main block 310, the size of the molding part 122 in the inserted molding rod 320 can be varied and adjusted, and the setting angle of the molding rod 320 can also be varied and adjusted.

[0066] In this embodiment, the first snap-fit ​​groove 330 is formed as follows: the first end 221 of the molding rod 320 is fully inserted into the insertion hole 111, and the molding part 222 and the molding main block 310 partially contact each other to form the first snap-fit ​​groove 330.

[0067] In this embodiment, the first snap-fit ​​groove 330 is formed by utilizing the gap between the molding part 222 and the molding main block 310. Therefore, the shape of the molding main block 310 needs to meet the requirement of forming a gap with the molding part 222 in the circumferential direction.

[0068] Fourth embodiment Please refer to Figure 9 and Figure 10 The heat-setting mold 400 for processing spring coils provided in this embodiment differs from that in the second embodiment in that the number of forming main blocks is at least two, and the two forming main blocks are connected by a forming mold rod 420 having a first end 221 and a second end 223.

[0069] In this embodiment, the heat-setting mold 400 has three molding main blocks: a first molding main block 410, a second molding main block 430, and a third molding main block 440. The first molding main block 410 has a total of six insertion holes 111, corresponding to a maximum of six molding mold rods 420. The second molding main block 430 has a total of eight insertion holes 111, corresponding to a maximum of eight molding mold rods 420. The third molding main block 440 has a total of... The total number is 6, and the number of corresponding molding rods 420 can be up to 6; the first molding main block 410 and the second molding main block 430 are connected by the same molding rod 420. The first end 221 of the molding rod 420 is inserted into a insertion hole 111 of the first molding main block 410, and the second end 223 is inserted into a insertion hole 111 of the second molding main block 430. The second molding main block 430 and the third molding main block 440 are connected by another molding rod 420.

[0070] In the above structure, the first engaging groove formed between each molding die rod 420 and the corresponding molding main block can be formed in the manner described in the first embodiment, or in the manner described in the third embodiment. For the molding module used to connect two molding main blocks, the second engaging groove formed between its second end and another molding main block can also be formed in the manner described in the first embodiment, or in the manner described in the third embodiment.

[0071] In this embodiment, the first molding main block 410, the second molding main block 430, and the third molding main block 440 can be connected to form a new molding die, which can produce spring coils of different shapes. This connection of molding main blocks is not limited to three blocks; theoretically, two or more blocks can be connected. The size and angle of the molding rod 420 in the configuration corresponding to each molding main block can be varied, with the aim of customizing spring coils of different configurations.

[0072] In summary, the heat-setting mold and heat-setting device for processing spring coils in the embodiments of this application can be assembled and combined according to requirements to meet the processing needs of spring coils with different configurations. Moreover, it is easy to achieve accurate winding and fixing of springs, thereby reducing the processing cost of spring coils and improving the processing efficiency of spring coils.

[0073] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A heat-setting mold for processing spring coils, characterized in that, It includes: A molding main block, the surface of which is provided with multiple insertion holes; A plurality of forming mold rods, wherein the forming mold rods are at least divided into a first end and a forming part along their axial direction, the outer diameter of the forming part is larger than the outer diameter of the first end, the first end of the forming mold rod can be detachably inserted into the insertion hole, and the forming part can form a first snap-fit ​​groove with the forming main block.

2. The heat-setting mold for processing spring coils according to claim 1, characterized in that, The main molding block is spherical, and the diameter of the main molding block is 1mm-50mm.

3. The heat-setting mold for processing spring coils according to claim 1 or 2, characterized in that, The included angle between the axial directions of adjacent insertion holes is 1°-180°.

4. The heat-setting mold for processing spring coils according to claim 1, characterized in that, The first end is cylindrical, with a diameter of 1mm-50mm and a length of 1mm-50mm. And / or, the forming part is cylindrical, with a diameter of 1mm-50mm and a length of 1mm-50mm.

5. The heat-setting mold for processing spring coils according to claim 1 or 2, characterized in that, The first end of the forming mold rod is fully inserted into the insertion hole, and the forming part and the forming main body block partially contact each other to form the first snap-fit ​​groove; Alternatively, the first end portion of the molding rod is inserted into the insertion hole, and the first snap-fit ​​groove is formed between the molding part, the exposed first end portion, and the molding main body block.

6. The heat-setting mold for processing spring coils according to claim 1, characterized in that, At least a portion of the forming rods are axially divided into a first end, a forming part, and a second end, wherein the outer diameter of the second end is larger than the outer diameter of the forming part, and the forming rods are configured such that the second end can be detachably inserted into the insertion hole, and a second snap-fit ​​groove is formed between the forming part and the forming main block after insertion.

7. The heat-setting mold for processing spring coils according to claim 6, characterized in that, The second end is cylindrical, with a diameter of 1mm-50mm and a length of 1mm-50mm.

8. The heat-setting mold for processing spring coils according to claim 6, characterized in that, The number of the molding main blocks is at least two, and the two molding main blocks are connected by the molding rod having the first end and the second end.

9. The heat-setting mold for processing spring coils according to claim 1, characterized in that, The first end is connected to the insertion hole by a threaded structure or a tenon structure.

10. A heat-setting device for processing spring coils, characterized in that, It includes a container, a vent pipe, and a heat-setting mold as described in any one of claims 1-9, wherein the container has an inner cavity for accommodating the heat-setting mold, and the vent pipe is connected to the inner cavity of the container for introducing chlorine gas into the container during the heat-setting process.

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