Self-adhesive wire coil winding tool

Abstract

The utility model discloses a self-adhesive coil winding tool. The self-adhesive coil winding tool comprises a stepped shaft, a first annular check ring, a second annular check ring, a locking piece and a heating piece. The stepped shaft comprises a first shaft section, and one side of the first shaft section is sequentially connected with a second shaft section, a third shaft section and a fourth shaft section; the second shaft section is sleeved with the first annular check ring. The third shaft section is sleeved with the second annular check ring. The locking piece is detachably connected with the fourth shaft section and used for locking the first annular check ring and the second annular check ring on the stepped shaft or unlocking the first annular check ring and the second annular check ring from the stepped shaft. And the heating element is used for heating the self-adhesive wire coil in the winding process, so that the self-adhesive paint layer of the self-adhesive enameled wire is melted, bonded and formed. By the adoption of the self-adhesion coil winding tool, the demolding process of the wound self-adhesion coil is simple, the self-adhesion coil is easy to demold, and therefore the winding efficiency of the self-adhesion coil can be improved.

Description

Technical Field

[0001] This application relates to the field of coil production equipment technology, and in particular to a self-adhesive coil winding fixture. Background Technology

[0002] Coils, as one of the fundamental components of sensors, have a particularly wide range of applications. Traditional glue-molded coils suffer from low molding efficiency and low yield rates. Self-adhesive wire coils wound with enameled wire, on the other hand, have a high yield rate and have now replaced traditional self-adhesive wire coils. Self-adhesive wire coils wound with enameled wire can be bonded and molded after heating or solvent treatment, making them highly favored and widely used in the manufacture of electromagnetic coils with various complex shapes or without frames.

[0003] However, with the increasing demand for sensors, the demand for self-adhesive wire coils is surging. Self-adhesive wire coils are difficult to demold during the winding process, or the demolding process is complex, thus affecting the production efficiency of self-adhesive enameled wire. Therefore, there is an urgent need for tooling equipment that can quickly wind and demold self-adhesive wire coils. Utility Model Content

[0004] This application provides a winding fixture that can solve the technical problems of slow demolding and low production efficiency of self-adhesive coils in the prior art. The technical solution is as follows:

[0005] A self-adhesive wire coil winding fixture is used to wind self-adhesive enameled wire into a self-adhesive wire coil. The outer surface of the self-adhesive enameled wire has a self-adhesive enamel layer. The winding fixture includes a stepped shaft, which includes a first shaft segment. A second shaft segment, a third shaft segment, and a fourth shaft segment are sequentially connected to one side of the first shaft segment. The first shaft segment has a first diameter, the second shaft segment has a second diameter, the third shaft segment has a third diameter, and the fourth shaft segment has a fourth diameter. A connecting shaft segment is connected to the other side of the first shaft segment. The first shaft segment, the second shaft segment, the third shaft segment, the fourth shaft segment, and the connecting shaft segment have the same central axis and satisfy the condition that the first diameter > the second diameter > the third diameter > the fourth diameter.

[0006] The first annular retaining ring is sleeved on the second shaft segment and has a first inner diameter and a first outer diameter;

[0007] The second annular retaining ring is sleeved on the third shaft section and has a second inner diameter and a second outer diameter;

[0008] A locking element, which is detachably connected to the fourth shaft segment, is used to lock the first annular retaining ring and the second annular retaining ring on the stepped shaft, or to unlock them from the stepped shaft.

[0009] And a heating element, which is used to heat the self-adhesive wire coil during the winding process so that the self-adhesive enamel layer of the self-adhesive enameled wire melts and adheres to the wire.

[0010] Wherein, the first annular retaining ring satisfies the following conditions: the first inner diameter is greater than the second diameter, the first outer diameter is greater than the first diameter, and the thickness of the first annular retaining ring is less than the length of the second shaft segment;

[0011] The second annular retaining ring satisfies the following conditions: the second inner diameter is greater than the third diameter, and the second outer diameter is greater than the second diameter.

[0012] Optionally, the connecting shaft segment has a fifth diameter, which is less than the first diameter.

[0013] Optionally, the winding fixture further includes a demolding component, which has a demolding circular hole with a third inner diameter; wherein the first diameter < the third inner diameter < the first outer diameter, and the sum of the length of the connecting shaft segment and the length of the first shaft segment is less than the depth of the demolding circular hole.

[0014] Optionally, the fourth shaft segment has an external thread, and the locking element is a nut that matches the external thread.

[0015] Optionally, the fourth shaft segment has a radial through hole, and the locking member is a locking pin that can be inserted into the through hole. After the locking pin is inserted into the through hole, it abuts against the side of the second annular retaining ring opposite to the first annular retaining ring.

[0016] Optionally, the outer surfaces of the stepped shaft, the first annular retaining ring, and the second annular retaining ring all have a siliconized layer.

[0017] Optionally, the roughness of the outer surfaces of the stepped shaft, the first annular retaining ring, and the second annular retaining ring is Ra, and Ra≤0.8.

[0018] Optionally, the heating element is a hot air blower, and the air outlet of the hot air blower faces the gap formed by the first annular baffle and the second annular baffle.

[0019] Optionally, the heating element is a heating wire disposed in at least one of the stepped shaft, the first annular retaining ring, and the second annular retaining ring.

[0020] The beneficial effects of the technical solutions provided in this application include at least the following:

[0021] A self-adhesive wire coil winding fixture includes: a stepped shaft, a first annular retaining ring, a second annular retaining ring, a locking element, and a heating element. When winding the self-adhesive wire coil, the stepped shaft is first connected to a winding machine via a connecting shaft section. Then, the first annular retaining ring is fitted onto the second shaft section, and the second annular retaining ring is fitted onto the third shaft section. The locking element connects the second and third shaft sections, fixing the second annular retaining ring to the third shaft section. Because the thickness of the first annular retaining ring is less than the length of the second shaft section, the first annular retaining ring, the second annular retaining ring, and the first shaft section form an annular groove for accommodating the self-adhesive wire coil wound from the self-adhesive enameled wire. During the winding process, the heating element heats the self-adhesive wire coil, melting and bonding the self-adhesive enamel layer on the surface of the self-adhesive enameled wire, thus forming a self-adhesive wire coil with a fixed shape. When demolding the self-adhesive coil, the locking member is first removed from the fourth shaft section, and the second annular retaining ring is removed from the third shaft section. Since the second outer diameter of the first annular retaining ring is larger than the first diameter of the first shaft section, by applying a force away from the first shaft section to the edge of the first annular retaining ring, the first annular retaining ring can drive the wound self-adhesive coil to be demolded from the second shaft section. Using the self-adhesive coil winding fixture of this disclosure, the demolding process of the wound self-adhesive coil is simple, and the self-adhesive coil is easy to demold, thus improving the winding efficiency of the self-adhesive coil.

[0022] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a longitudinal sectional view of the self-adhesive wire coil winding fixture provided in the embodiments of this application;

[0025] Figure 2 yes Figure 1 Longitudinal section of the stepped shaft;

[0026] Figure 3 yes Figure 1 Longitudinal section of the first annular retaining ring;

[0027] Figure 4 yes Figure 1 Longitudinal section view of the second annular retaining ring;

[0028] Figure 5 yes Figure 1 Longitudinal section view of the nut;

[0029] Figure 6 yes Figure 1 Longitudinal section of the demolding part.

[0030] Explanation of reference numerals in the attached figures

[0031] 1-Stepped shaft; 101-First shaft segment; 102-Second shaft segment; 103-Third shaft segment; 104-Fourth shaft segment; 105-Connecting shaft segment; D11-First diameter; D12-Second diameter; D13-Third diameter; D14-Fourth diameter; D15-Fifth diameter; 2-First annular retaining ring; D21-First inner diameter; D22-First outer diameter; 3-Second annular retaining ring; D31-Second inner diameter; D32-Second outer diameter; 4-Locking component; 5-Self-adhesive wire coil; 6-Demolding component; 601-Demolding hole; D61-Third inner diameter. Detailed Implementation

[0032] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0033] In this disclosure, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the relative positions of the corresponding components in the direction of gravity when they are in use, and "inner" and "outer" refer to their relative positions to the contours of the corresponding components themselves. Furthermore, the terms "first," "second," etc., used in this disclosure are for distinguishing one element from another and do not have sequential or importance implications. In the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements.

[0034] The outer surface of the self-adhesive enameled wire has a self-adhesive enamel layer. The self-adhesive wire coil can be bonded and formed after being heated or treated with a solvent.

[0035] According to a specific embodiment of this disclosure, refer to Figures 1 to 5 As shown, a self-adhesive wire coil winding fixture is provided for winding self-adhesive enameled wire into a self-adhesive wire coil 5. The winding fixture includes: a stepped shaft 1, a first annular retaining ring 2, a second annular retaining ring 3, a locking member 4, and a heating member.

[0036] refer to Figure 2As shown, the stepped shaft 1 includes a first shaft segment 101. A second shaft segment 102, a third shaft segment 103, and a fourth shaft segment 104 are sequentially connected to one side of the first shaft segment 101. The first shaft segment 101 has a first diameter D11, the second shaft segment 102 has a second diameter D12, the third shaft segment 103 has a third diameter D13, and the fourth shaft segment 104 has a fourth diameter D14. A connecting shaft segment 105 is connected to the other side of the first shaft segment 101. The first shaft segment 101, the second shaft segment 102, the third shaft segment 103, the fourth shaft segment 104, and the connecting shaft segment 105 have the same central axis and satisfy the condition that the first diameter D11 > the second diameter D12 > the third diameter D13 > the fourth diameter D14. Thus, one side of the stepped shaft 1 is a unidirectional stepped shaft 1, and its diameter decreases sequentially from the first shaft segment 101 to the fourth shaft segment 104.

[0037] refer to Figure 3 As shown, the first annular retaining ring 2 is sleeved on the second shaft section 102, and has a first inner diameter D21 and a first outer diameter D22.

[0038] refer to Figure 4 As shown, the second annular retaining ring 3 is sleeved on the third shaft segment 103, having a second inner diameter D31 and a second outer diameter D32. The locking member 4 is detachably connected to the fourth shaft segment 104, used to lock the first annular retaining ring 2 and the second annular retaining ring 3 onto the stepped shaft 1, or to unlock them from the stepped shaft 1. The heating element is used to heat the self-adhesive wire coil 5 during the winding process, so that the self-adhesive enamel layer of the self-adhesive enameled wire melts and adheres to the wire.

[0039] The first annular retaining ring 2 satisfies the condition that the first inner diameter D21 is greater than the second diameter D12, so that the first annular retaining ring 2 can be fitted onto the second shaft segment 102.

[0040] The first outer diameter D22 is greater than the first diameter D11, which makes it easier to apply force to the first annular retaining ring 2 during demolding.

[0041] The thickness of the first annular retaining ring 2 is less than the length of the second shaft segment 102.

[0042] The second annular retaining ring 3 satisfies the following conditions: the second inner diameter D31 > the third diameter D13, so that the second annular retaining ring 3 can be fitted onto the third shaft segment 103; and the second outer diameter D32 > the second diameter D12. In the above embodiment, when winding the self-adhesive wire coil 5, the stepped shaft 1 is first connected to the winding machine through the connecting shaft segment 105. Then, the first annular retaining ring 2 is fitted onto the second shaft segment 102, and the second annular retaining ring 3 is fitted onto the third shaft segment 103. It is then connected to the fourth shaft segment 104 through the locking member 4, thus fixing the second annular retaining ring 3 onto the third shaft segment 103. Since the thickness of the first annular retaining ring 2 is less than the length of the second shaft segment 102, the first annular retaining ring 2, the second annular retaining ring 3, and the first shaft segment 101 form an annular groove, which is used to accommodate the self-adhesive wire coil 5 wound with self-adhesive enameled wire. During the winding process of the self-adhesive coil 5, the self-adhesive coil 5 is heated by a heating element, causing the self-adhesive enamel layer on the surface of the self-adhesive enameled wire to melt and adhere, thus forming a self-adhesive coil 5 with a fixed shape. When demolding the self-adhesive coil 5, the locking element 4 is first removed from the fourth shaft section 104, and the second annular retaining ring 3 is removed from the third shaft section 103. Since the second outer diameter D32 of the first annular retaining ring 2 is larger than the first diameter D11 of the first shaft section 101, by applying a force away from the first shaft section 101 to the edge of the first annular retaining ring 2, the first annular retaining ring 2 can drive the wound self-adhesive coil 5 to be demolded from the second shaft section 102. Using the self-adhesive coil winding fixture of this disclosure, the self-adhesive coil demolding process is simple, and the self-adhesive coil is easy to demold, thus improving the winding efficiency of the self-adhesive coil.

[0043] According to a specific embodiment of this disclosure, refer to Figure 1 and Figure 2 As shown, the connecting shaft segment 105 has a fifth diameter D15, which is less than the first diameter D11. This allows workers to easily apply force to the edge of the first annular retaining ring 2 using tools, causing the first annular retaining ring 2 to push the self-adhesive coil 5 out of the mold.

[0044] According to a specific embodiment of this disclosure, refer to Figure 1 and Figure 6 As shown, the winding fixture may also include a demolding component 6, which has a demolding hole 601 and a third inner diameter D61.

[0045] Wherein, the first diameter D11 < the third inner diameter D61 < the first outer diameter D22, and the sum of the length of the connecting shaft segment 105 and the length of the first shaft segment 101 is less than the depth of the demolding hole 601. In this way, when the self-adhesive coil 5 is demolded, the demolding part 6 is placed vertically on the table, the winding fixture with the self-adhesive coil 5 is completely removed from the winding machine, and the connecting shaft section 105 of the winding fixture with the self-adhesive coil 5 is inserted into the demolding hole 601 of the demolding part 6. Since the first diameter D11 < the third inner diameter D61 < the first outer diameter D22, the first shaft section 101 can enter the demolding hole 601, while the first annular retaining ring 2 is blocked outside the demolding hole 601. Furthermore, the sum of the length of the connecting shaft section 105 and the length of the first shaft section 101 is less than the depth of the demolding hole 601. Thus, the first annular retaining ring 2 can be mounted on the demolding part 6, and the connecting shaft section 105 has a certain downward space. Applying a downward force to the end of the first shaft section 101 causes the stepped shaft 1 to descend, thereby demolding the first annular retaining ring 2 and the self-adhesive coil 5 from the stepped shaft 1.

[0046] According to a specific embodiment of this disclosure, reference is made to... Figure 1 and Figure 2 As shown, the fourth shaft segment 104 has external threads, and the locking element is a nut that matches the external threads. By connecting the nut to the fourth shaft segment 104 via threads, the first annular retaining ring 2 and the second annular retaining ring 3 can be reliably connected to the stepped shaft 1.

[0047] According to another specific embodiment of this disclosure, the fourth shaft segment 104 has a radial through hole (not shown in the figure), and the locking member is a locking pin that can be inserted into the through hole. After the locking pin is inserted into the through hole, it abuts against the side of the second annular retaining ring 3 opposite to the first annular retaining ring 2. In this embodiment, the use of a locking pin inserted into the through hole can achieve quick installation and removal of the locking member, thereby improving winding efficiency.

[0048] According to a specific embodiment of this disclosure, the outer surfaces of the stepped shaft 1, the first annular retaining ring 2, and the second annular retaining ring 3 all have a silicide treatment layer. Silicification is a method of increasing the strength of steel by adding an appropriate amount of silicon. After adding a certain amount of silicon, the crystal structure of the steel changes, leading to an increase in hardness and strength. One method of silicide treatment is silicon diffusion, which involves permeating silicon into the surface of the steel. This can be achieved through various methods such as heat treatment, gas permeation, and immersion bath. Silicide treatment can prevent damage to the outer surfaces of the stepped shaft 1, the first annular retaining ring 2, and the second annular retaining ring 3 during the demolding process of the self-adhesive coil 5.

[0049] According to a specific embodiment of this disclosure, the surface roughness of the outer surfaces of the stepped shaft 1, the first annular retaining ring 2, and the second annular retaining ring 3 is all Ra, and Ra≤0.8. Thus, by increasing the surface roughness of the stepped shaft 1, the first annular retaining ring 2, and the second annular retaining ring 3, the demolding efficiency of the self-adhesive coil 5 can be improved, thereby increasing the winding efficiency.

[0050] According to one specific embodiment of this disclosure, the heating element can be a hot air blower, with the air outlet of the hot air blower facing the gap formed by the first annular retaining ring 2 and the second annular retaining ring 3. According to another specific embodiment of this disclosure, the heating element can be a heating wire disposed in at least one of the stepped shaft 1, the first annular retaining ring 2, and the second annular retaining ring 3. By heating the self-adhesive coil 5 during the winding process, the self-adhesive enamel layer on the self-adhesive enameled wire is melted and bonded together, and after cooling, a self-adhesive coil 5 with a fixed shape is formed.

[0051] The implementation principle of this disclosure embodiment is explained below with reference to specific operation steps:

[0052] The first step is to connect the connecting shaft section 105 of the stepped shaft 1 to the rotating output shaft of the winding machine;

[0053] The second step is to fit the first annular retaining ring 2 into the second shaft segment 102 of the stepped shaft 1;

[0054] The third step is to fit the second annular retaining ring 3 into the third shaft segment 103 of the stepped shaft 1;

[0055] Fourth step, screw the nut onto the fourth shaft segment 104 of the stepped shaft 1;

[0056] Fifth step: Start the winding machine and wind the self-adhesive coil 5. At the same time, turn on the hot air blower to blow hot air onto the self-adhesive coil 5 until the self-adhesive coil 5 is wound and the self-adhesive enamel layer on the self-adhesive enameled wire melts and adheres to the shape.

[0057] Step 6: Turn off the hot air blower and wait for the self-adhesive coil 5 to cool down and solidify. Then, remove the entire winding fixture with the self-adhesive coil 5 from the winding machine.

[0058] Step 7: Place the demolding part 6 vertically on the table, insert the connecting shaft section 105 of the winding fixture with the self-adhesive coil 5 into the demolding hole 601 of the demolding part 6, remove the nut, remove the second annular retaining ring 3, and apply a downward force to the end of the fourth shaft section 104 to move the stepped shaft 1 downward and separate it from the self-adhesive coil 5.

[0059] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0060] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0061] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A self-adhesive wire coil winding fixture for winding self-adhesive enameled wire into a self-adhesive wire coil (5), wherein the outer surface of the self-adhesive enameled wire has a self-adhesive enamel layer, characterized in that, The winding fixture includes: A stepped shaft (1) includes a first shaft segment (101), on one side of which a second shaft segment (102), a third shaft segment (103), and a fourth shaft segment (104) are connected in sequence; the first shaft segment (101) has a first diameter (D11), the second shaft segment (102) has a second diameter (D12), the third shaft segment (103) has a third diameter (D13), and the fourth shaft segment (104) has a fourth diameter (D14); a connecting shaft segment (105) is connected to the other side of the first shaft segment (101); the first shaft segment (101), the second shaft segment (102), the third shaft segment (103), the fourth shaft segment (104), and the connecting shaft segment (105) have the same central axis and satisfy the condition that the first diameter (D11) > the second diameter (D12) > the third diameter (D13) > the fourth diameter (D14); The first annular retaining ring (2) is sleeved on the second shaft segment (102) and has a first inner diameter (D21) and a first outer diameter (D22); The second annular retaining ring (3) is sleeved on the third shaft section (103) and has a second inner diameter (D31) and a second outer diameter (D32); Locking member (4), which is detachably connected to the fourth shaft segment (104), is used to lock the first annular retaining ring (2) and the second annular retaining ring (3) on the stepped shaft (1) or to unlock them from the stepped shaft (1). And a heating element, which is used to heat the self-adhesive wire coil (5) during the winding process so that the self-adhesive enamel layer of the self-adhesive enameled wire melts and adheres to the shape; Wherein, the first annular retaining ring (2) satisfies: the first inner diameter (D21) > the second diameter (D12), the first outer diameter (D22) > the first diameter (D11), and the thickness of the first annular retaining ring (2) is less than the length of the second shaft segment (102); The second annular retaining ring (3) satisfies the following conditions: the second inner diameter (D31) > the third diameter (D13), and the second outer diameter (D32) > the second diameter (D12).

2. The self-adhesive wire coil winding fixture according to claim 1, characterized in that, The connecting shaft segment (105) has a fifth diameter (D15), which is less than the first diameter (D11).

3. The self-adhesive wire coil winding fixture according to claim 2, characterized in that, The winding fixture also includes a demolding component (6), which has a demolding hole (601) and a third inner diameter (D61). Wherein, the first diameter (D11) < the third inner diameter (D61) < the first outer diameter (D22), and the sum of the length of the connecting shaft segment (105) and the length of the first shaft segment (101) is less than the depth of the demolding hole (601).

4. The self-adhesive wire coil winding fixture according to claim 1, characterized in that, The fourth shaft segment (104) has an external thread, and the locking element is a nut that matches the external thread.

5. The self-adhesive wire coil winding fixture according to claim 1, characterized in that, The fourth shaft segment (104) has a radial through hole, and the locking member is a locking pin that can be inserted into the through hole. After the locking pin is inserted into the through hole, it abuts against the side of the second annular retaining ring (3) away from the first annular retaining ring (2).

6. The self-adhesive wire coil winding fixture according to claim 1, characterized in that, The outer surfaces of the stepped shaft (1), the first annular retaining ring (2), and the second annular retaining ring (3) all have a siliconized layer.

7. The self-adhesive wire coil winding fixture according to claim 1, characterized in that, The roughness of the outer surfaces of the stepped shaft (1), the first annular retaining ring (2) and the second annular retaining ring (3) is Ra, and Ra≤0.

8.

8. The self-adhesive wire coil winding fixture according to claim 1, characterized in that, The heating element is a hot air blower, and the air outlet of the hot air blower faces the gap formed by the first annular baffle (2) and the second annular baffle (3).

9. The self-adhesive wire coil winding fixture according to claim 1, characterized in that, The heating element is a heating wire disposed in at least one of the stepped shaft (1), the first annular retaining ring (2), and the second annular retaining ring (3).

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