Spring coil heat setting tool
By designing a spring coil heat setting tool including a first mold, a second mold and a pre-fixed member, the problem of the spring coil being easily bent and poor in the thermal setting process in the prior art is solved, and a more stable setting effect is achieved.
Patent Information
- Application Number
- CN202411978692.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-04-11
AI Technical Summary
Existing heat-setting molds are prone to cause problems such as bending of the spring coil and poor size during use.
A coil heat-setting tooling including a first mold, a second mold and a pre-fixed member is designed. The first mold is provided with an installation part and a limiting groove, and the spring coil is wound in the limiting groove and fixed by a pre-fixed member; the inner cavity of the second mold can be provided at the installation part of the first mold to further fix the spring coil.
By fixing the limit, the spring coil is avoided during the thermal setting process, and the stability and reliability of the setting are improved.
Smart Images
Figure CN119794226A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of spring shaping, and more specifically to a spring coil heat shaping tool. Background Art
[0002] In the related technology, coil interventional embolization is to inject coils into the blood vessels supplying the diseased organs in a controlled manner through arterial or venous catheters to cause occlusion and interruption of blood supply, in order to achieve the purpose of controlling bleeding, treating tumors and vascular lesions, and eliminating the function of diseased organs.
[0003] The spring coil is generally composed of a single spring wound, and the spring coil is a product made by fixing the spring on a heat setting tool and processing it through a heat setting process. However, the current heat setting mold is prone to problems such as spring coil bending and poor size during use.
[0004] Therefore, it is necessary to provide a new technical solution to solve the above technical problems. Summary of the invention
[0005] An object of the present invention is to provide a new technical solution for a spring coil heat setting tool.
[0006] According to a first aspect of the present invention, a spring coil heat setting tool is provided. The spring coil heat setting tool comprises:
[0007] The first mold is provided with a mounting portion, wherein the mounting portion is provided with a first limiting groove for fitting the spring ring, and the spring ring can be wound in the first limiting groove;
[0008] A pre-fixing member, the pre-fixing member is suitable for fixing the spring coil wound on the first mold;
[0009] The second mold is provided with an inner cavity, the mounting portion can be arranged in the inner cavity, and the second mold is suitable for fixing the spring coil wound around the mounting portion.
[0010] Optionally, when the spring coil is heat-set, the pre-fixing member may be melted.
[0011] Optionally, the pre-fixing member is suitable for being wound around the first mold and the spring ring to pre-fix the spring ring in the first limiting groove.
[0012] Optionally, the first mold is provided with a second limiting groove, and the pre-fixing member is partially wrapped in the second limiting groove.
[0013] Optionally, the first mold is provided with a plurality of the second limiting grooves spaced apart along the circumferential direction.
[0014] Optionally, a cross-shaped second limiting groove is provided at one axial end of the mounting portion.
[0015] Optionally, four second limiting grooves are arranged at intervals along the circumferential direction on the side wall of the first mold, and the four second limiting grooves are distributed in a cross shape and correspond to the cross-shaped second limiting groove at the end of the mounting portion.
[0016] Optionally, there is a gap between the mounting portion and the inner wall of the inner cavity, and the gap is suitable for avoiding the pre-fixing component.
[0017] Optionally, the first mold is provided with a fixing portion, and an end portion of the pre-fixed member is fixed to the fixing portion.
[0018] Optionally, the second mold is provided with a communicating hole, and the inner cavity can be connected with the outside through the communicating hole.
[0019] One technical effect of the present application is that the mounting portion of the first mold is provided with a first limiting groove, the spring coil is wound around the first limiting groove, the spring coil can be pre-fixed by a pre-fixing member, and the second mold can be sleeved on the mounting portion of the first mold to fix the spring coil. The spring coil heat setting tool of the present application can limit and fix the spring coil, and can avoid bending, deformation, poor size and other problems of the spring coil during heat setting.
[0020] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
[0022] Figure 1 It is a schematic structural diagram of a spring coil heat setting tooling according to an embodiment of the present application.
[0023] Figure 2 It is a schematic diagram of the structural decomposition of a spring coil heat setting tooling according to an embodiment of the present application.
[0024] Figure 3 It is a schematic structural diagram of a first mold according to an embodiment of the present application.
[0025] Figure 4 It is a cross-sectional view of a second mold according to an embodiment of the present application.
[0026] Figure 5 It is a schematic diagram of the structure of a spring coil according to an embodiment of the present application.
[0027] Figure 6This is a schematic diagram of the structural decomposition of a spring coil heat setting tooling according to another embodiment of the present application.
[0028] Figure 7 This is a schematic structural diagram of a spring coil heat setting tooling according to an embodiment of the present application.
[0029] Figure 8 This is a schematic structural diagram of a spring coil according to another embodiment of the present application.
[0030] Fig. 9 This is a schematic diagram of the structural decomposition of a spring coil heat setting tooling according to another embodiment of the present application.
[0031] Fig.10 This is a schematic structural diagram of a spring coil heat setting tooling according to an embodiment of the present application.
[0032] Fig.11 This is a schematic diagram of the structural decomposition of the second mold of an embodiment of the present application.
[0033] Fig.12 This is a schematic structural diagram of a spring coil according to another embodiment of the present application.
[0034] Reference numerals:
[0035] 1. First mold; 11. Mounting portion; 111. First limiting groove; 12. Second limiting groove; 13. Fixing portion; 14. First connecting portion; 15. Overhanging head; 2. Second mold; 21. Inner cavity; 22. Connecting hole; 23. Second connecting portion; 24. First main body; 25. Second main body; 26. Lug; 27. Groove; 3. Fastener; 4. Spring ring. DETAILED DESCRIPTION
[0036] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.
[0037] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
[0038] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.
[0039] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.
[0040] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0041] According to one embodiment of the present application, a spring coil heat setting tool is provided. Figures 1 to 5 As shown, the spring coil heat setting tooling includes a first mold 1, a second mold 2 and a pre-fixing member. The first mold 1 is provided with a mounting portion 11, and the mounting portion 11 is provided with a first limiting groove 111 for adapting the spring coil 4, and the spring coil 4 can be wound in the first limiting groove 111. The pre-fixing member is suitable for fixing the spring coil 4 wound on the first mold 1. The second mold 2 is provided with an inner cavity 21, and the mounting portion 11 can be arranged in the inner cavity 21. The second mold 2 is suitable for fixing the spring coil 4 wound on the mounting portion 11.
[0042] In this example, the mounting portion 11 of the first mold 1 is provided with a first limiting groove 111, the spring coil 4 is wound around the first limiting groove 111, the spring coil 4 can be pre-fixed by a pre-fixing member, and the second mold 2 can be sleeved on the mounting portion 11 of the first mold 1 to fix the spring coil 4. The spring coil heat setting tool of the present application can limit and fix the spring coil 4, and can avoid bending, deformation, poor size and other problems of the spring coil 4 during heat setting.
[0043] like Figure 1 and Figure 2 As shown, in this example, the first mold 1 is provided with a mounting portion 11, and the mounting portion 11 is provided with a first limiting groove 111 in a threaded shape, and the spring ring 4 can be coiled from one end of the first limiting groove 111 into the first limiting groove 111, so that the spring ring 4 can be limited and shaped. Then the spring ring 4 can be fixed by a pre-fixing member to fix the spring ring 4 in the first limiting groove 111, so that the first mold 1 with the spring ring 4 fixed is embedded in the inner cavity 21 of the second mold 2 to further fix the spring ring 4. Finally, the first mold 1 and the second mold 2 are fixedly connected and placed in an electrically heated air circulation furnace to heat and shape the spring ring 4.
[0044] like Figures 3 to 5 As shown, in this example, the spring ring 4 can be a conical spring, and the mounting portion 11 is also correspondingly configured as a conical structure, and the side wall of the mounting portion 11 is provided with a first limiting groove 111, so that the overall shape of the first limiting groove 111 is conical. In addition, the inner cavity 21 of the second mold 2 is also provided with a conical cavity corresponding to the conical mounting portion 11, so as to facilitate the fixing of the spring ring 4.
[0045] Of course, the spring ring 4 can also be a cylindrical spring, a diamond-shaped spring or a cubic spring, etc. The mounting portion 11 and the first limiting groove 111 of the corresponding structure are set according to the structure of the spring ring 4. Those skilled in the art can determine according to actual conditions, and no specific limitation is made here.
[0046] In one example, when the spring coil 4 is heat-set, the pre-fixed element will be melted.
[0047] In this example, after the spring coil 4 is fixed to the spring coil heat setting tooling, the spring coil heat setting tooling is placed in an electric heating air circulation furnace for heating and heat preservation, so as to heat and shape the spring coil 4 inside the tooling. During the heat preservation process in the electric heating air circulation furnace, the pre-fixing part is melted at high temperature, so that the spring coil 4 after shaping can be removed from the first mold 1 later, which can save the step of disassembling the pre-fixing part and is conducive to improving production efficiency.
[0048] In one example, the pre-fixing member is suitable for being wound around the first mold 1 and the spring ring 4 to pre-fix the spring ring 4 in the first limiting groove 111 .
[0049] In this example, after the spring coil 4 is wound into the first limiting groove 111, the pre-fixing member is wound around the first mold 1 and the outer side of the spring coil 4, so that the spring coil 4 can be fixed in the first limiting groove 111. The fixing method of the pre-fixing member to the spring coil 4 is simple and easy to operate.
[0050] In this example, the depth of the first limiting groove 111 can be equal to or less than the diameter of the metal wire constituting the spring coil 4, so that after the spring coil 4 is embedded in the first limiting groove 111, it will be flush with the opening of the first limiting groove 111 or slightly protrude from the opening of the first limiting groove 111, so that when the pre-fixing component is wound, it is beneficial to make the pre-fixing component fit with the surface of the spring coil 4, thereby improving the stability and reliability of fixing the spring coil 4.
[0051] For example, the pre-fixed part includes a rope body such as cotton thread, polyester, nylon, leather rope or hemp rope. Alternatively, the pre-fixed part can also be a metal material with a low melting point such as tin or lead, so that the pre-fixed part can be melted in the heating furnace. The diameter of the pre-fixed part can be 0.1mm, 0.2mm, 0.3mm, 0.4mm or 0.5mm, etc.
[0052] In one example, the pre-fixed member may also be a copper wire of 0.1mm-0.2mm. The spring coil 4 is pre-fixed in the first limit groove 111 by the copper wire, and then the first mold 1 is assembled to the second mold 2. After the spring coil heat-setting tool is heated in an electric heating air circulation furnace to shape the spring coil, the first mold 1 is taken out of the second mold 2, and then the copper wire is removed to facilitate the removal of the shaped spring coil 4. The copper wire has good toughness and high strength, and the melting point of copper is about 1083°C. The temperature for heat-setting the spring coil is mostly 500°C-600°C. The copper wire will not melt during the heat-setting process, so it is not easy to produce impurities on the surface of the spring coil 4.
[0053] Of course, the specific material and size of the pre-fixing component can be determined by those skilled in the art according to actual conditions, and no specific limitation is made here.
[0054] In this example, the pre-fixing member can also pre-fix the spring coil 4 in the first limiting groove 111 by means of snap connection or bonding, etc., and those skilled in the art can determine it according to the actual situation, and no specific limitation is made here.
[0055] In an example, Figure 2 and Figure 3 As shown, the first mold 1 is provided with a second limiting groove 12 , and the pre-fixed member is partially wound in the second limiting groove 12 .
[0056] like Figure 2 and Figure 3 As shown, in this example, a second limiting groove 12 is also provided on the surface of the first mold 1. When the pre-fixed component is wrapped around the surface of the first mold 1, part of the pre-fixed component can be wrapped around or placed in the second limiting groove 12, so that the pre-fixed component can be limited to improve the stability and reliability of the fixed spring coil 4.
[0057] In an example, Figure 2 and Figure 3 As shown, the first mold 1 is provided with a plurality of the second limiting grooves 12 at intervals along the circumferential direction.
[0058] like Figure 2 and Figure 3 As shown, in this example, a first limiting groove 111 is provided on one side of the first mold 1, and a plurality of second limiting grooves 12 are provided at intervals along the circumferential direction on the other side. When the pre-fixing member is wound around the spring coil 4, it is respectively wound around the plurality of second limiting grooves 12, so that the pre-fixing member can be limited, so as to further improve the stability and reliability of fixing the spring coil 4.
[0059] The mounting portion 11 of the first mold 1 is configured to be conical, one end of the mounting portion 11 is connected to a cylindrical portion, and a plurality of second limiting grooves 12 are arranged at intervals along the circumference of the cylindrical portion. For example, three, four or five second limiting grooves 12 are arranged at intervals, and those skilled in the art may determine this according to actual conditions, and no specific limitation is made here. The second limiting groove 12 extends along the axial direction of the first mold 1, one end of the second limiting groove 12 extends to the mounting portion 11, and the other end extends to an end of the cylindrical portion away from the mounting portion 11.
[0060] In an example, Figure 3 As shown, a cross-shaped second limiting groove 12 is provided at one end of the mounting portion 11 along the axial direction.
[0061] like Figure 3 As shown, in this example, a second limiting groove 12 is provided on the end surface of one end of the mounting portion 11, and the second limiting groove 12 is cross-shaped. When the pre-fixing member is wound around the spring coil 4, it is respectively wound around the cross-shaped second limiting groove 12, so that the pre-fixing member can be limited, so as to further improve the stability and reliability of fixing the spring coil 4.
[0062] Among them, after the spring coil 4 is placed in the first limiting groove 111, the pre-fixed part can start to be wound along the second limiting groove 12 on the cylindrical part, and be wound into the cross-shaped second limiting groove 12 on the end face of the mounting part 11, and then continue to be wound into the second limiting groove 12 on the cylinder, and then change direction and wind along another second limiting groove 12. After winding multiple turns in sequence, the spring coil 4 is fixed in the first limiting groove 111 of the first mold 1.
[0063] In an example, Figure 2 and Figure 3 As shown, four second limiting grooves 12 are arranged at intervals along the circumferential direction on the side wall of the first mold 1 . The four second limiting grooves 12 are distributed in a cross shape and correspond to the cross-shaped second limiting grooves 12 at the end of the mounting portion 11 .
[0064] like Figure 2 and Figure 3 As shown, the four second limiting grooves 12 on the side wall of the first mold 1 are distributed in a cross shape, and the second limiting groove 12 at the bottom of the mounting portion 11 is also a cross-shaped structure. When the pre-fixed part is wound, the pre-fixed part is wound in a cross shape along the second limiting groove 12 at the bottom and the second limiting groove 12 on the side wall to improve the stability of fixing the spring coil 4.
[0065] In an example, Figure 1 and Figure 2 As shown, the first mold 1 is provided with a fixing portion 13 , and the end of the pre-fixed member is fixed to the fixing portion 13 .
[0066] like Figure 1 and Figure 2 As shown, a fixing portion 13 for connecting the pre-fixing member is also provided on the first mold 1. That is, when the pre-fixing member is wound on the first mold 1, one end of the pre-fixing member can be first tied to the fixing portion 13, and the other end is wound along the plurality of second limiting grooves 12 in sequence. After the winding is completed, the other end of the pre-fixing member is tied to the fixing portion 13, so that the pre-fixing member can stably fix the spring coil 4.
[0067] For example, the fixing portion 13 may be a boss structure provided on the first mold 1. The fixing portion 13 may be formed integrally with the first mold 1, or the fixing portion 13 may be connected to the first mold 1 by welding, clamping, or bolting. Those skilled in the art may determine the method according to actual conditions, and no specific limitation is made here.
[0068] In one example, there is a gap between the mounting portion 11 and the inner wall of the inner cavity 21 , and the gap is suitable for avoiding the pre-fixing member.
[0069] In this example, the inner diameter of the inner cavity 21 is larger than the outer diameter of the first mold 1. When the first mold 1 is embedded in the inner cavity 21, there is a gap between the outer surface of the first mold 1 and the inner wall of the inner cavity 21. After the pre-fixing member is wrapped around the surface of the first mold 1, the first mold 1 is placed in the inner cavity 21. The gap can play a role in avoiding the pre-fixing member, so that the first mold 1 can be smoothly embedded in the inner cavity 21.
[0070] In an example, Figure 2 and Figure 4 As shown, the second mold 2 is provided with a communicating hole 22 , and the inner cavity 21 can be communicated with the outside through the communicating hole 22 .
[0071] like Figure 2 and Figure 4 As shown, in this example, the second mold 2 is provided with a plurality of connecting holes 22, and the positions of the connecting holes 22 correspond to the positions of the inner cavity 21. The inner cavity 21 can be connected to the outside through the connecting holes 22, that is, the connecting holes 22 penetrate the inner wall of the inner cavity 21, one end of the connecting holes 22 is connected to the outside, and the other end is connected to the inner cavity 21. After the spring coil heat setting tool is placed in the heating furnace, the efficiency of heat setting can be increased. For example, the connecting holes 22 can be used for exhaust, and the heat setting process is an electrically heated air circulation. The connecting holes 22 are provided to allow air to circulate. The spring coil heat setting tool is placed in the electrically heated air circulation furnace, and the connecting holes 22 can play a ventilation role to increase the efficiency of heat setting.
[0072] like Figure 2 and Figure 4As shown, in this example, multiple communicating holes 22 can be arranged at intervals to further increase the efficiency of heat setting. Among them, the second mold 2 is provided with multiple rows of communicating holes 22 at intervals along the circumferential direction, and each row is provided with multiple communicating holes 22 at intervals along the axial direction. For example, the second mold 2 is provided with two, three, four or five rows of communicating holes 22 at intervals along the circumferential direction, and each row is provided with five, six, seven, eight, nine or ten communicating holes 22 at intervals along the axial direction. Of course, the specific arrangement of the communicating holes 22 can be determined by those skilled in the art according to the actual situation, and no specific limitation is made here.
[0073] In this example, the connecting hole 22 may be a hole with a circular cross section, a square hole, or a hole of other irregular shapes. Also, the inner diameter of the connecting hole 22 may be determined by those skilled in the art according to actual conditions, and is not specifically limited here.
[0074] In an example, Figure 1 and Figure 2 As shown, the first mold 1 is provided with a first connection part 14, and the second mold 2 is provided with a second connection part 23. After the first mold 1 is embedded in the inner cavity 21 of the second mold 2, the first connection part 14 and the second connection part 23 are connected to fix the first mold 1 to the second mold 2.
[0075] For example, the first connection part 14 is provided with a connection hole, and the second connection part 23 is provided with a connection hole. One end of a fastener 3 such as a screw, a bolt or a stud is sequentially passed through the connection holes of the first connection part 14 and the second connection part 23, so that the first connection part 14 and the second connection part 23 can be fixedly connected.
[0076] Alternatively, the first connection portion 14 and the second connection portion 23 are respectively provided with flanges, and the first mold 1 can be fixedly connected to the second mold 2 via the flanges.
[0077] In an example, Figure 1 and Figure 2 As shown, the first mold 1 is provided with a hanging head 15, which can be used for hanging. In the electric heating air circulation furnace, the heat setting tool is placed in the middle position, and the heat setting tool is suspended in the air, so that the heat setting effect is best. When the spring coil heat setting tool is transported, the hanging head 15 can be clamped by the clamping claws and then the spring coil heat setting tool is transported, so as to fix and transport the spring coil heat setting tool. Alternatively, after the spring coil heat setting tool is placed in the hot furnace, the whole spring coil heat setting tool can be fixed by fixing the hanging head 15.
[0078] like Figure 1 and Figure 2As shown, the hanging head 15 can be arranged at one end of the fixing part 13. The hanging head 15 and the fixing part 13 are both cylindrical structures, and the hanging head 15 is arranged at one axial end of the fixing part 13. The diameter of the hanging head 15 is larger than the diameter of the fixing part 13, so that the hanging head 15 can be fixed by a mechanism such as a clamp. Among them, the hanging head 15 can be integrally formed with the fixing part 13, and the pre-fixed part can be fixed on the fixing part 13.
[0079] like Figures 6 to 8 As shown, in one example, the spring ring 4 can be a cylindrical spring. The mounting portion 11 of the first mold 1 is cylindrical and can be used to fix the cylindrical spring ring 4, and the second mold 2 is correspondingly provided with a cylindrical inner cavity 21.
[0080] like Figures 9 to 12 As shown, in one example, the spring ring 4 can also be a heterosexual spring, such as Fig.12 As shown, the spring coil 4 is thin in the middle and thick at both ends, similar to the shape of an hourglass. Fig. 9 As shown, the mounting portion 11 of the first mold 1 is configured to have a shape corresponding to the anisotropic spring ring 4, and can be used to fix the anisotropic spring ring 4. Fig.10 and Fig.11 As shown, the second mold 2 includes a first main body 24 and a second main body 25, the first main body 24 and the second main body 25 have a groove 27, the first main body 24 and the second main body 25 are connected, the groove 27 of the first main body 24 corresponds to the groove 27 of the second main body 25, so that the grooves 27 of the first main body 24 and the second main body 25 are combined to form an inner cavity 21 of a corresponding shape, so that the mounting portion 11 can be accommodated in the inner cavity 21. The first main body 24 and the second main body 25 are respectively provided with a connecting hole 22.
[0081] In this example, when the first mold 1 is assembled with the second mold 2 , the first mold 1 is first placed in the groove 27 of the first main body 24 , and then the second main body 25 is connected to the first main body 24 , so that the first mold 1 is partially embedded in the inner cavity 21 of the second mold 2 .
[0082] Among them, Fig.10 and Fig.11 As shown, the first body part 24 and the second body part 25 are respectively provided with a plurality of lugs 26, and the lugs 26 are provided with connection holes, and the fasteners 3 are sequentially penetrated through the two lugs 26, so as to connect the first body part 24 and the second body part 25. For example, the first body part 24 is provided with four lugs 26 at intervals, and the second body part 25 is also provided with four lugs 26 at corresponding positions.
[0083] In one example, the heat setting step of the spring coil 4 includes: winding the unshaped spring coil 4 from one end of the first limiting groove 111 into the first limiting groove 111, and then pre-fixing the spring coil 4 in the first limiting groove 111 through a pre-fixing member. Then, the first mold 1 is partially embedded in the inner cavity 21 of the second mold 2, and the mounting portion 11 is placed in the inner cavity 21. Then, the first mold 1 is fixedly connected to the second mold 2 through the fastener 3. Then, the spring coil heat setting tooling is transported to an electric heating air circulation furnace for heating and heat preservation, and the pre-fixing member can be melted in the electric heating air circulation furnace. After the spring coil 4 is shaped, the spring coil heat-setting tooling is taken out from the electric heating air circulation furnace and placed in purified water for cooling. The purified water needs to cover the spring coil heat-setting tooling. After the spring coil heat-setting tooling is cooled, the spring coil heat-setting tooling is taken out, the fastener 3 used to connect the first mold 1 and the second mold 2 is loosened, the first mold 1 is separated from the second mold 2, and the shaped spring coil 4 can be taken out.
[0084] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.
[0085] Although some specific embodiments of the present invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.
Claims
1. A spring coil heat setting tool, characterized in that: include: The first mold is provided with a mounting portion, wherein the mounting portion is provided with a first limiting groove for fitting the spring ring, and the spring ring can be wound in the first limiting groove; A pre-fixing member, the pre-fixing member is suitable for fixing the spring coil wound on the first mold; The second mold is provided with an inner cavity, the mounting portion can be arranged in the inner cavity, and the second mold is suitable for fixing the spring coil wound around the mounting portion.
2. The spring coil heat setting tool according to claim 1, characterized in that: When the spring coil is heat-set, the pre-fixing element will be melted.
3. The spring coil heat setting tool according to claim 1, characterized in that: The pre-fixing member is suitable for being wound around the first mold and the spring ring to pre-fix the spring ring in the first limiting groove.
4. The spring coil heat setting tool according to claim 3, characterized in that: The first mold is provided with a second limiting groove, and the pre-fixing member is partially wound in the second limiting groove.
5. The spring coil heat setting tool according to claim 4, characterized in that: The side wall of the first mold is provided with a plurality of the second limiting grooves at intervals along the circumferential direction.
6. The spring coil heat setting tool according to claim 4, characterized in that: The second cross-shaped limiting groove is provided at one end of the mounting portion along the axial direction.
7. The spring coil heat setting tool according to claim 6, characterized in that: The side wall of the first mold is provided with four second limiting grooves at intervals along the circumferential direction, the four second limiting grooves are distributed in a cross shape and correspond to the cross-shaped second limiting groove at the end of the mounting portion.
8. The spring coil heat setting tool according to claim 3, characterized in that: There is a gap between the mounting portion and the inner wall of the inner cavity, and the gap is suitable for avoiding the pre-fixing component.
9. The spring coil heat setting tool according to claim 3, characterized in that: The first mold is provided with a fixing portion, and an end portion of the pre-fixed member is fixed to the fixing portion.
10. The spring coil heat setting tool according to claim 1, characterized in that: The second mold is provided with a communicating hole, and the inner cavity can be communicated with the outside through the communicating hole.