Gluing device of metal wire for winding capillary tube and winding equipment

Abstract

The invention relates to the technical field of manufacturing equipment of gas mass flow controllers, and discloses a gluing device of a metal wire for winding a capillary tube, a first glue inlet hole, a second glue inlet hole, a glue outlet hole, a wire passing hole and a hollow cavity are formed in a glue sleeve, and the metal wire can enter the hollow cavity from the wire passing hole and penetrate out of the glue outlet hole; a first component and a second component of mixed glue are input from the first glue inlet hole and the second glue inlet hole, the metal wire and the spiral groove in the hollow cavity form a spiral channel, the first component and the second component flow and are mixed along the spiral channel, and the mixed glue is extruded out of the glue outlet hole and can be coated on the surface of the metal wire which also penetrates out of the glue outlet hole. And during winding, the metal wires are adhered to the capillary tube and the adjacent metal wires through the glue on the surfaces of the metal wires, so that the metal wires and the capillary tube are stably and tightly wound. In addition, the invention further provides winding equipment comprising a capillary tube fixing device and the gluing device.

Description

Technical Field

[0001] The invention relates to the technical field of gas mass flow controller manufacturing equipment, in particular to a gluing device and winding equipment for a metal wire used for capillary winding. Background Art

[0002] Gas mass flow controllers are mainly used to precisely measure and control the mass flow of gas, and have important applications in scientific research and production in various fields such as semiconductor microelectronics industry, special material research and development, chemical industry, petroleum industry, medicine, environmental protection and vacuum. Existing gas mass flow controllers mainly include capillary winding temperature sensors, which consist of a capillary and a resistance metal wire wound around it.

[0003] When manufacturing a traditional gas mass flow controller, for a capillary winding temperature sensor, since the resistance metal wire has a metal elastic material, after winding, the metal material has a rebound effect, resulting in the structure being easy to loose after winding, therefore, glue is applied to the capillary so that the resistance metal wire can be adhered to the capillary to achieve fixation. In order to prevent the glue from drying up and losing its viscosity early, the current resistance metal wire is wound on the capillary with glue points, which has a complex structure, and the glue point position needs to be strictly controlled, otherwise the resistance metal wire cannot contact and bond with the colloid on the capillary, such as a resistance wire winding method disclosed in CN200610062712.1. The single glue output of the traditional glue dispensing equipment is large, and a uniform glue layer cannot be formed on the upper and lower capillaries, and the gap between the metal wire and the capillary, or between the metal wires, is affected by the uneven glue layer, resulting in different coil lengths of the metal wire winding, which affects the working performance of the flow mass controller and needs to be improved urgently. Summary of the invention

[0004] In order to solve the problem of uneven glue dispensing on the capillary tube in the production process of traditional flow controllers, which leads to a decrease in the quality of metal wire winding and prevent the working performance of the flow quality controller from decreasing, the purpose of the present invention is to provide a gluing device and winding equipment for metal wire for capillary winding with a simple structure and firm and tight bonding.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a glue coating device for metal wire for capillary winding, comprising a rubber sleeve, a hollow cavity formed in the rubber sleeve, one end of the rubber sleeve is provided with a first glue inlet hole, a second glue inlet hole and a wire feeding hole connected to the hollow cavity, the other end of the rubber sleeve is provided with a glue outlet hole connected to the hollow cavity, the hollow cavity is provided with a spiral groove, one end of the spiral groove is connected to the first glue inlet hole and the second glue inlet hole, the other end of the spiral groove is connected to the glue outlet hole, the metal wire enters the hollow cavity through the wire feeding hole and passes through the glue outlet hole.

[0006] In the glue coating device of the present invention, the wire-feeding hole is connected to the glue outlet hole, so that the metal wire used for winding the capillary can enter from the wire-feeding hole and pass through the glue outlet hole.

[0007] As a preferred solution, the spiral groove is fixedly connected to the cavity wall of the hollow cavity or is directly and integrally provided on the cavity wall of the hollow cavity.

[0008] As a preferred embodiment, a limiting mechanism is further included, wherein the limiting mechanism includes a limiting seat, the limiting seat is arranged in the hollow cavity, the limiting seat is arranged close to the glue outlet hole, the limiting seat is connected to the cavity wall of the hollow cavity through a connecting column, the limiting seat is provided with a wire outlet hole passing through both ends thereof, the wire outlet hole is arranged concentrically with the glue outlet hole, and the aperture of the wire outlet hole is smaller than the aperture of the glue outlet hole.

[0009] As a preferred solution, the cross-section of the limiting seat is trapezoidal, and the diameter of one end of the limiting seat close to the glue outlet hole is larger than the diameter of one end of the limiting seat away from the glue outlet hole.

[0010] As a preferred solution, the number of the connecting posts is two or more, and the two or more connecting posts are evenly distributed around the limiting seat in the circumferential direction.

[0011] As a preferred embodiment, the rubber sleeve includes a glue mixing part and a glue outlet part which are connected to each other, the first glue inlet hole, the second glue inlet hole and the wire feeding hole are arranged on the glue mixing part, the glue outlet hole is arranged on the glue outlet part, and the inner diameter of the glue outlet part gradually decreases from the end connected to the glue mixing part to the end away from the glue mixing part.

[0012] As a preferred embodiment, the spiral groove includes a first spiral groove and a second spiral groove, the first spiral groove and the second spiral groove are arranged in sequence along the length direction of the rubber sleeve, and the spiral directions of the first spiral groove and the second spiral groove are opposite.

[0013] As a preferred embodiment, the glue coating device further includes a first connecting tube and a second connecting tube, wherein the first connecting tube is connected to the rubber sleeve and communicates with the first glue inlet hole, and the second connecting tube is connected to the rubber sleeve and communicates with the second glue inlet hole.

[0014] The present invention also provides a capillary winding device, including a capillary fixing device and the above-mentioned glue coating device, the capillary fixing device includes a base, a bracket, a clamping mechanism and a driving mechanism, the base is located on one side of the glue coating device, the bracket can be movably connected to the base along the length direction of the base, the clamping mechanism can be rotatably connected to the bracket, the driving mechanism is installed on the bracket and connected to the clamping mechanism, and the driving mechanism drives the clamping mechanism to rotate.

[0015] As a preferred embodiment, the bracket includes a support plate and two upright frames, the support plate is movably connected to the base, the two upright frames are arranged on the support plate at intervals, each of the two upright frames is provided with a clamping mechanism, the clamping mechanism includes a supporting arm, a connecting arm and two clamping arms, one end of the connecting arm is vertically connected to the middle part of the supporting arm, the other end of the connecting arm is connected to the upright frame, the two clamping arms are respectively arranged at both ends of the supporting arm, and the two clamping arms can approach or move away from each other along the length direction of the supporting arm, the driving mechanism is arranged on one of the upright frames, and the driving mechanism is connected to the supporting arm on the upright frame where it is located.

[0016] As a preferred embodiment, the driving mechanism includes a rotating motor, a driving gear and a driven gear. A connecting shaft is provided on the stand, a mounting hole is provided on the connecting arm, the connecting shaft is inserted into the mounting hole, the rotating motor is installed on one of the stands, the driving gear is sleeved on the output shaft of the rotating motor, the driven gear is sleeved on the connecting arm, and the driving gear is meshed with the driven gear.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention provides a first glue inlet hole, a second glue inlet hole, a glue outlet hole, a wire feeding hole and a hollow cavity on a glue sleeve of a glue coating device, so that the metal wire can enter the hollow cavity from the wire feeding hole and pass through the glue outlet hole, and the first component and the second component of the mixed glue can be respectively input into the hollow cavity from the first glue inlet hole and the second glue inlet hole, and a spiral groove is provided in the hollow cavity, and the metal wire and the spiral groove form a spiral channel, and the first component and the second component flow and mix along the spiral channel. When the metal wire passes through the glue outlet hole, the mixed glue is squeezed out from the glue outlet hole and can be coated on the surface of the metal wire that also passes through the glue outlet hole, so that the outer wall of the metal wire is coated with a uniform glue layer, and when the metal wire is wound around the capillary, the metal wire is adhered to the capillary through the glue on its surface, and the adjacent metal wires can also be adhered to each other, so that the winding of the metal wire and the capillary is firm and tight. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a working schematic diagram of a metal wire being wound around a capillary tube according to an embodiment of the present invention.

[0020] Figure 2 It is a schematic structural diagram of a glue coating device according to an embodiment of the present invention.

[0021] Figure 3 4 is a cross-sectional view of a glue coating device according to an embodiment of the present invention.

[0022] Figure 4It is a longitudinal cross-sectional view of the glue coating device according to the first embodiment of the present invention.

[0023] Figure 5 yes Figure 3 Enlarged view of point A.

[0024] Figure 6 It is a longitudinal cross-sectional view of the end portion of the glue coating device of the second embodiment of the present invention.

[0025] Figure 7 It is a cross-sectional view of the end portion of the glue coating device of the second embodiment of the present invention where the glue outlet hole is arranged.

[0026] Figure 8 It is a longitudinal cross-sectional view of the glue coating device of the third embodiment of the present invention.

[0027] Fig. 9 Schematic diagram of the structure of a capillary fixing device according to an embodiment of the present invention.

[0028] Fig.10 It is a schematic diagram of the structure of the clamping mechanism of an implementation example of the present invention.

[0029] In the figure, 1-rubber sleeve; 101-first glue inlet hole; 102-second glue inlet hole; 103-wire feeding hole; 104-glue outlet hole; 105-spiral groove; 1051-first spiral groove; 1052-second spiral groove; 106-hollow cavity; 2-limiting seat; 201-wire outlet hole; 3-connecting column; 4-first connecting pipe; 5-second connecting pipe; 6-base; 7-support plate; 8-stand; 9-support arm; 10-connecting arm; 1001-mounting hole; 11-clamping arm; 12-rotating motor; 13-driven gear; 14-driving gear; 15-connecting shaft; 16-metal wire; 17-capillary. DETAILED DESCRIPTION

[0030] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0034] Embodiment 1

[0035] like Figures 1 to 5 As shown, a gluing device for a metal wire for capillary winding according to a preferred embodiment of the present invention comprises a rubber sleeve 1, a hollow cavity 106 is formed in the rubber sleeve 1, a first glue inlet hole 101, a second glue inlet hole 102 and a wire feeding hole 103 which are connected to the hollow cavity 106 are provided at one end of the rubber sleeve 1, a glue outlet hole 104 which is connected to the hollow cavity 106 is provided at the other end of the rubber sleeve 1, the hollow cavity 106 is provided with a spiral groove 105, one end of the spiral groove 105 is connected to the first glue inlet hole 101 and the second glue inlet hole 102, the other end of the spiral groove 105 is connected to the glue outlet hole 104, the metal wire enters the hollow cavity 106 through the wire feeding hole 103 and passes through the glue outlet hole 104. In this embodiment, a first glue inlet hole 101, a second glue inlet hole 102, a glue outlet hole 104, a wire feeding hole 103 and a hollow cavity 106 are arranged in the rubber sleeve 1 of the glue coating device, and the metal wire 16 can enter the hollow cavity 106 from the wire feeding hole 103 and pass through the glue outlet hole 104, and the first component and the second component of the mixed glue can be respectively input into the hollow cavity 106 from the first glue inlet hole 101 and the second glue inlet hole 102, and a spiral groove 105 is arranged in the hollow cavity 106, and the metal wire 16 and the spiral groove 105 form a spiral channel, and the first component and the second component of the mixed glue can be respectively input into the hollow cavity 106 from the first glue inlet hole 101 and the second glue inlet hole 102, and the .... The first component and the second component flow and mix along the spiral channel. When the metal wire 16 passes through the glue outlet hole 104, the mixed glue is squeezed out from the glue outlet hole 104 and can be coated on the surface of the metal wire 16 that also passes through the glue outlet hole 104, so that the outer wall of the metal wire 16 is coated with glue. When the metal wire 16 is wound around the capillary 17, the metal wire 16 is adhered to the capillary 17 through the glue on its surface, and adjacent metal wires 16 can also be adhered to each other, so that the winding of the metal wire 16 and the capillary 17 is firm and tight.

[0036] In the glue coating device of this embodiment, the wire feeding hole 103 and the glue outlet hole 104 are connected, so that the metal wire 16 used for winding the capillary can enter from the wire feeding hole 103 and pass through the glue outlet hole 104 .

[0037] Preferably, the spiral groove 105 is fixedly connected to the cavity wall of the hollow cavity 106 or is directly and integrally provided on the cavity wall of the hollow cavity 106 .

[0038] Embodiment 2

[0039] The difference between this embodiment and the first embodiment is that, based on the first embodiment, this embodiment further illustrates the glue coating device.

[0040] like Figure 6 and Figure 7 As shown, in this embodiment, the glue coating device further includes a limiting mechanism, which includes a limiting seat 2, which is arranged in the hollow cavity 106, and is arranged near the glue outlet hole 104. The limiting seat 2 is connected to the cavity wall of the hollow cavity 106 through the connecting column 3. The limiting seat 2 is provided with a wire outlet hole 201 running through both ends thereof, and the wire outlet hole 201 is arranged concentrically with the glue outlet hole 104, and the aperture of the wire outlet hole 201 is smaller than the aperture of the glue outlet hole 104. By providing the limiting seat 2, the wire outlet hole 201 is arranged concentrically with the glue outlet hole 104 and has a smaller aperture, so that the metal wire 16 can pass through the center of the glue outlet hole 104 when passing through, avoiding the problem of uneven glue coating caused by the deviation of the metal wire 16 when passing through, and making the glue coating of the outer wall around the metal wire 16 uniform. The connecting posts 3 are distributed at intervals, and a space for a fully mixed fluid to pass through is formed between the two groups of connecting posts 3. The fluid moves to between the wire outlet hole 201 and the glue outlet. Since the wire outlet hole 201 and the glue outlet are concentrically arranged, the metal wire 16 will not scratch the inner wall of the glue outlet when passing through the glue outlet. The mixed glue can be smoothly and evenly attached to the surface of the metal wire 16. At the same time, the glue layer with uneven thickness can also be trimmed by the edge of the glue outlet, so that the glue layer on the metal wire 16 after passing through the glue outlet is unified and uniform.

[0041] Furthermore, the cross section of the limiting seat 2 is a trapezoid, and the diameter of the end of the limiting seat 2 close to the glue outlet 104 is larger than the diameter of the end away from the glue outlet 104, which is conducive to guiding the mixed glue to flow out from the glue outlet.

[0042] Furthermore, in this embodiment, two or more connecting posts 3 are provided, and the two or more connecting posts 3 are evenly distributed around the limiting seat 2 in the circumferential direction, which is conducive to uniform thickness of the mixed glue when it is coated on the metal wire 16 .

[0043] In addition, the rubber sleeve 1 of this embodiment includes a glue mixing part and a glue outlet part connected to each other, the first glue inlet hole 101, the second glue inlet hole 102 and the wire feeding hole 103 are arranged on the glue mixing part, and the glue outlet hole 104 is arranged on the glue outlet part, and the inner diameter of the glue outlet part gradually decreases from the end connected to the glue mixing part to the end away from the glue mixing part. The inner diameter of the glue outlet part gradually decreases, which is conducive to the extrusion of the mixed glue and the uniform extrusion of the glue, so that the outer wall of the metal wire 16 passing through the glue outlet hole 104 can be coated with glue.

[0044] The other structures of this embodiment are the same as those of the first embodiment and will not be described again here.

[0045] Embodiment 3

[0046] The difference between this embodiment and the second embodiment is that, based on the second embodiment, this embodiment further illustrates the glue coating device.

[0047] like Figure 8 As shown, the spiral groove 105 of this embodiment includes a first spiral groove 1051 and a second spiral groove 1052, which are sequentially arranged along the length direction of the rubber sleeve 1, and the spiral directions of the first spiral groove 1051 and the second spiral groove 1052 are opposite. By arranging the first spiral groove 1051 and the second spiral groove 1052 with opposite spiral directions, the uniformity of glue mixing can be further improved.

[0048] It should be noted that the number of the first spiral groove 1051 and the number of the second spiral groove 1052 may not be equal, but the number of the first spiral groove 1051 and the number of the second spiral groove 1052 is at least one.

[0049] In addition, the first spiral grooves 1051 and the second spiral grooves 1052 of the present embodiment are alternately arranged along the length direction of the rubber sleeve 1, which can further improve the uniformity.

[0050] In addition, the glue coating device of this embodiment further includes a first connecting tube 4 and a second connecting tube 5. The first connecting tube 4 is connected to the rubber sleeve 1 and communicated with the first glue inlet hole 101, and the second connecting tube 5 is connected to the rubber sleeve 1 and communicated with the second glue inlet hole 102. By providing the first connecting tube 4 and the second connecting tube 5, it is convenient to connect with the glue input device. The first glue inlet of this embodiment inputs A glue, and the second glue inlet inputs B glue. A glue and B glue are mixed in the rubber sleeve 1 to form AB glue and coated on the metal wire 16.

[0051] The other structures of this embodiment are the same as those of the second embodiment and will not be described again here.

[0052] Embodiment 4

[0053] like Fig. 9 and Fig.10As shown, this embodiment provides a capillary winding device, including a capillary fixing device and a glue coating device described in any one of embodiments 1 to 3, the capillary fixing device includes a base 6, a bracket, a clamping mechanism and a driving mechanism, the base 6 is located on one side of the glue coating device, the bracket can be movably connected to the base 6 along the length direction of the base 6, the clamping mechanism can be rotatably connected to the bracket, the driving mechanism is installed on the bracket and connected to the clamping mechanism, and the driving mechanism drives the clamping mechanism to rotate. The capillary 17 is clamped and fixed by the clamping mechanism. During winding, the driving mechanism drives the clamping mechanism to rotate, thereby driving the capillary 17 to rotate, and the movement of the bracket drives the capillary 17 to move, so that the metal wire 16 passing through the glue coating device can be wound on the capillary 17, without moving the glue coating device, so that the structure of the device is simple, and the winding work is efficient and orderly.

[0054] Further, the support includes a support plate 7 and two vertical frames 8, the support plate 7 is movably connected to the base 6, the two vertical frames 8 are arranged at intervals on the support plate 7, and each of the two vertical frames 8 is provided with a clamping mechanism, the clamping mechanism includes a supporting arm 9, a connecting arm 10 and two clamping arms 11, one end of the connecting arm 10 is vertically connected to the middle of the supporting arm 9, and the other end of the connecting arm 10 is connected to the vertical frame 8, the two clamping arms 11 are respectively arranged at the two ends of the supporting arm 9, and the two clamping arms 11 can approach or move away from each other along the length direction of the supporting arm 9, and the driving mechanism is arranged on one of the vertical frames 8, and the driving mechanism is connected to the supporting arm 9 on the vertical frame 8 where it is located. The capillary 17 is put into the support from the top, the two ends of the capillary 17 are respectively located on the supporting arms 9 on the two vertical frames 8, and the end of the capillary 17 is located between the two clamping arms 11, and the clamping arm 11 moves along the length direction of the supporting arm 9 to make the two clamping arms 11 approach, so as to achieve the end of the capillary 17 being clamped and fixed. After the winding is completed, the clamping arm 11 moves along the length direction of the supporting arm 9 so that the two clamping arms 11 move away from each other, thereby loosening the end of the capillary 17. The capillary 17 can be lifted up to leave the capillary 17 fixing device, which is convenient and efficient.

[0055] In addition, the driving mechanism of this embodiment includes a rotating motor 12, a driving gear 14 and a driven gear 13, a connecting shaft 15 is provided on the stand 8, a mounting hole 1001 is provided on the connecting arm 10, the connecting shaft 15 is inserted into the mounting hole 1001, the rotating motor 12 is installed on one of the stands 8, the driving gear 14 is sleeved on the output shaft of the rotating motor 12, the driven gear 13 is sleeved on the connecting arm 10, and the driving gear 14 is meshed with the driven gear 13. The rotating motor 12 rotates to drive the connecting arm 10 to rotate, thereby realizing the rotation of the clamped capillary 17.

[0056] The other structures of this embodiment are the same as those of the third embodiment and will not be described again here.

[0057] The working process of the present invention is as follows: the capillary 17 is placed from above the capillary 17 fixing device, and the end of the capillary 17 is placed on the supporting arm 9 of the clamping mechanism, and the capillary 17 is clamped and fixed by the two clamps being close to each other. The metal wire 16 is introduced into the wire feeding hole 103, and the A glue and the B glue are squeezed into the rubber sleeve 1 from the first glue feeding hole 101 and the second glue feeding hole 102 of the rubber sleeve 1 respectively. The metal wire 16 and the spiral groove 105 on the inner wall of the rubber sleeve 1 form a spiral channel, and the A glue and the B glue flow along the spiral channel to achieve uniform mixing of the A glue and the B glue, and the mixed A glue and the B glue gradually move to the glue outlet hole 104. The metal wire 16 enters the limit seat 2 through the wire feeding hole 103, so that the metal wire 16 passes through the center of the glue outlet hole 104. When the metal wire 16 passes through, the mixed glue is squeezed out from the glue outlet hole 104. When the metal wire 16 passes through, the glue can be coated on the outer surface of the metal wire 16, and the circumferential side walls of the metal wire 16 can be coated with glue. The rotating motor 12 works, driving the connecting arm 10 of the clamping mechanism to rotate, thereby driving the capillary 17 to rotate, and through the movement of the support plate 7, driving the capillary 17 to move, so that the metal wire 16 is wound on the capillary 17. After the winding is completed, the two clamping arms 11 move away from each other, release the capillary 17, and lift the capillary 17 to unload it.

[0058] In summary, the embodiment of the present invention provides a gas mass flow controller capillary winding device, which is provided with a first glue inlet hole 101, a second glue inlet hole 102, a glue outlet hole 104, a wire feeding hole 103 and a hollow cavity 106 in a rubber sleeve 1 of a glue coating device, and a metal wire 16 can enter the hollow cavity 106 from the wire feeding hole 103 and pass through the glue outlet hole 104, and the first component and the second component of the mixed glue can be respectively input into the hollow cavity 106 from the first glue inlet hole 101 and the second glue inlet hole 102, and a spiral groove 105 is provided in the hollow cavity 106, and the metal wire 16 and the spiral groove 105 are connected to each other. The spiral groove 105 forms a spiral channel, and the first component and the second component flow and mix along the spiral channel. When the metal wire 16 passes through the glue outlet hole 104, the mixed glue is squeezed out from the glue outlet hole 104 and can be coated on the surface of the metal wire 16 that also passes through the glue outlet hole 104, so that the outer wall of the metal wire 16 is coated with glue. When the metal wire 16 is wound around the capillary 17, the metal wire 16 is adhered to the capillary 17 through the glue on its surface, and adjacent metal wires 16 can also be adhered to each other, so that the winding of the metal wire 16 and the capillary 17 is firm and tight.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A glue coating device for a metal wire for capillary winding, characterized in that: The invention comprises a rubber sleeve (1), wherein a hollow cavity (106) is formed in the rubber sleeve (1), wherein one end of the rubber sleeve (1) is provided with a first glue inlet hole (101), a second glue inlet hole (102) and a wire feeding hole (103) which are connected to the hollow cavity (106), and the other end of the rubber sleeve (1) is provided with a glue outlet hole (104) which is connected to the hollow cavity (106); a spiral groove (105) is provided in the hollow cavity (106), wherein one end of the spiral groove (105) is connected to the first glue inlet hole (101) and the second glue inlet hole (102), and the other end of the spiral groove (105) is connected to the glue outlet hole (104); a metal wire enters the hollow cavity (106) through the wire feeding hole (103) and passes out from the glue outlet hole (104).

2. The gluing device for capillary winding metal wire according to claim 1, characterized in that: The spiral groove (105) is fixedly connected to the cavity wall of the hollow cavity (106) or is directly and integrally arranged on the cavity wall of the hollow cavity (106).

3. The gluing device for capillary winding metal wire according to claim 1, characterized in that: The invention also comprises a limiting mechanism, wherein the limiting mechanism comprises a limiting seat (2), the limiting seat (2) is arranged in the hollow cavity (106), the limiting seat (2) is arranged close to the glue outlet hole (104), the limiting seat (2) is connected to the cavity wall of the hollow cavity (106) through a connecting column (3), the limiting seat (2) is provided with a wire outlet hole (201) passing through both ends thereof, the wire outlet hole (201) is arranged concentrically with the glue outlet hole (104), and the aperture of the wire outlet hole (201) is smaller than the aperture of the glue outlet hole (104).

4. The gluing device for capillary winding metal wire according to claim 3, characterized in that: The cross section of the limiting seat (2) is trapezoidal, and the diameter of the end of the limiting seat (2) close to the glue outlet hole (104) is larger than the diameter of the end of the limiting seat (2) away from the glue outlet hole (104).

5. The gluing device for capillary winding metal wire according to claim 3, characterized in that: The connecting posts (3) are arranged in two or more forms, and the two or more connecting posts (3) are evenly distributed at circumferential intervals around the limiting seat (2).

6. The gluing device for capillary winding metal wire according to claim 1, characterized in that: The rubber sleeve (1) comprises a rubber mixing portion and a rubber outlet portion which are connected to each other, the first rubber inlet hole (101), the second rubber inlet hole (102) and the wire feeding hole (103) are arranged on the rubber mixing portion, the rubber outlet hole (104) is arranged on the rubber outlet portion, and the inner diameter of the rubber outlet portion gradually decreases from an end thereof connected to the rubber mixing portion to an end away from the rubber mixing portion.

7. The gluing device for capillary winding metal wire according to claim 1, characterized in that: The spiral groove (105) comprises a first spiral groove (1051) and a second spiral groove (1052), wherein the first spiral groove (1051) and the second spiral groove (1052) are arranged in sequence along the length direction of the rubber sleeve (1), and the spiral directions of the first spiral groove (1051) and the second spiral groove (1052) are opposite.

8. The gluing device for capillary winding metal wire according to claim 1, characterized in that: The glue coating device further comprises a first connecting pipe (4) and a second connecting pipe (5), wherein the first connecting pipe (4) is connected to the rubber sleeve (1) and communicates with the first glue inlet hole (101), and the second connecting pipe (5) is connected to the rubber sleeve (1) and communicates with the second glue inlet hole (102).

9. A capillary winding device, characterized in that: It comprises a capillary fixing device and the glue coating device according to any one of claims 1 to 8, wherein the capillary fixing device comprises a base (6), a bracket, a clamping mechanism and a driving mechanism, the base (6) is located on one side of the glue coating device, the bracket is movably connected to the base (6) along the length direction of the base (6), the clamping mechanism is rotatably connected to the bracket, the driving mechanism is installed on the bracket and connected to the clamping mechanism, and the driving mechanism drives the clamping mechanism to rotate.

10. The capillary winding device according to claim 9, characterized in that: The bracket comprises a support plate (7) and two upright frames (8), wherein the support plate (7) is movably connected to the base (6), and the two upright frames (8) are arranged on the support plate (7) at intervals. Each of the two upright frames (8) is provided with a clamping mechanism, and the clamping mechanism comprises a supporting arm (9), a connecting arm (10) and two clamping arms (11), wherein one end of the connecting arm (10) is vertically connected to the middle part of the supporting arm (9), and the other end of the connecting arm (10) is connected to the upright frame (8). The two clamping arms (11) are respectively arranged at two ends of the supporting arm (9), and the two clamping arms (11) can approach or move away from each other along the length direction of the supporting arm (9), and the driving mechanism is arranged on one of the upright frames (8), and the driving mechanism is connected to the supporting arm (9) on the upright frame (8) where the driving mechanism is located.

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