Coil pay-off device

Abstract

The utility model relates to the technical field of motor manufacturing equipment, and discloses a coil pay-off device which comprises an installation frame. The pay-off wheel set is arranged on the mounting frame and is used for unwinding the enameled wire; the tension adjusting mechanism comprises a tension wheel assembly and a tension adjusting assembly, the tension wheel assembly comprises a tension wheel, a tension rod and a tension spring, the tension wheel is arranged on the downstream of the pay-off wheel set and supports the enameled wire, one end of the tension rod is rotationally connected with the mounting frame, the other end of the tension rod is provided with the tension wheel, and one end of the tension spring is connected with the mounting frame; the other end of the tension spring is connected with the tension rod, the output end of the tension adjusting assembly is in transmission connection with the tension rod, the tension adjusting assembly is used for keeping the horizontal included angle of the tension rod, and the tension of the tension adjusting assembly on the tension rod is adjustable. According to the coil pay-off device, pay-off tension can be adjusted through the tension adjusting assembly, a tension spring does not need to be manually replaced, and the requirement for automatically switching multi-section tension can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of motor manufacturing equipment, in particular to a coil pay-off device. Background Art

[0002] In a motor, the stator is the stationary part, which usually consists of an iron core and a coil. The coil is wound around the iron core, and when current passes through the coil, it generates a magnetic field, which drives the motor to rotate.

[0003] During the motor manufacturing process, the enameled wire that forms the coil needs to be wound on the iron core. When winding, the enameled wire is released through a pay-off rack. The existing pay-off rack controls the pay-off tension through a spring, and cannot automatically switch multiple tensions. In addition, when it is necessary to replace the enameled wire with a different wire diameter or adjust the pay-off tension, the spring needs to be replaced manually.

[0004] Therefore, there is an urgent need for a coil pay-off device to solve the above-mentioned technical problems. Utility Model Content

[0005] Based on the above, the purpose of the utility model is to provide a coil pay-off device, which can adjust the pay-off tension through a tension adjustment component, without the need to manually replace the tension spring, and can meet the needs of automatically switching multiple tension levels.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] Provide coil pay-off device, including:

[0008] Mounting frame;

[0009] A pay-off wheel assembly is arranged on the mounting frame, and the pay-off wheel assembly is used for unwinding the enameled wire;

[0010] The tension adjustment mechanism comprises a tension wheel assembly and a tension adjustment assembly, wherein the tension wheel assembly comprises a tension wheel, a tension rod and a tension spring, wherein the tension wheel is arranged downstream of the pay-off wheel group and supports the enameled wire, one end of the tension rod is rotatably connected to the mounting frame, the other end of the tension rod is equipped with the tension wheel, one end of the tension spring is connected to the mounting frame, the other end of the tension spring is connected to the tension rod, the output end of the tension adjustment assembly is transmission-connected to the tension rod, the tension adjustment assembly is used to maintain the horizontal angle of the tension rod, and the tension of the tension rod by the tension adjustment assembly is adjustable.

[0011] As an optional technical solution of the coil pay-off device, the tension adjustment assembly includes:

[0012] A linear cylinder is mounted on the mounting frame, and an output end of the linear cylinder is connected to the tension rod via a tension rope;

[0013] A proportional pressure regulating valve is installed on the mounting frame, the proportional pressure regulating valve is communicated with the linear cylinder, and the proportional pressure regulating valve is used to control the gas flow and pressure flowing through the linear cylinder.

[0014] As an optional technical solution of the coil pay-off device, the tension wheel assembly further includes:

[0015] A hook buckle and a wire rod hook, the hook buckle is sleeved on the tension rod, and the hook buckle is locked to the tension rod by a fastening screw, the wire rod hook is rotatably connected to the hook buckle, the rotation axis of the wire rod hook is parallel to the rotation axis of the tension rod, and the tension spring and the tension rope are both connected to the wire rod hook.

[0016] As an optional technical solution of the coil pay-off device, the coil pay-off device further includes:

[0017] The tension measuring and controlling instrument is arranged downstream of the tension wheel assembly. The enameled wire is wound around the detection end of the tension measuring and controlling instrument. The tension measuring and controlling instrument is electrically connected to the tension adjusting assembly. The tension measuring and controlling instrument can control the tension adjusting assembly to adjust the pulling force on the tension rod.

[0018] As an optional technical solution for the coil pay-off device, the tension measuring and controlling instrument is provided with a display panel and a control button, the display panel is used to display the value of the pay-off tension, and the control button is used to input a control signal.

[0019] As an optional technical solution for the coil pay-off device, the coil pay-off device also includes: a first anti-jumping wire wheel, a second anti-jumping wire wheel, a third anti-jumping wire wheel and an encoder, which are arranged downstream of the tension measuring and controlling instrument. The enameled wire released through the tension measuring and controlling instrument is sequentially wound around the first anti-jumping wire wheel, the second anti-jumping wire wheel, the third anti-jumping wire wheel and the wire wheel of the encoder, wherein the first anti-jumping wire wheel is rotatable around a horizontal axis, and the second anti-jumping wire wheel, the third anti-jumping wire wheel and the wire wheel of the encoder are rotatable around a vertical axis.

[0020] As an optional technical solution for the coil pay-off device, one end of the tension rod is rotatably connected to the mounting frame via a transfer shaft, the coil pay-off device also includes an angle sensor, a bearing seat is fixed on the mounting frame, the angle sensor is installed on the bearing seat via a fixed seat, the transfer shaft passes through the bearing seat and is connected to the detection end of the angle sensor via a coupling.

[0021] As an optional technical solution of the coil pay-off device, the coil pay-off device further includes:

[0022] The scale plate is arranged on the mounting frame, the scale plate is arranged as an arc-shaped structure, and the scale plate is extended around the rotation axis of the tension rod, and the scale plate is provided with scale lines distributed in the same direction as the extension direction thereof.

[0023] As an optional technical solution of the coil pay-off device, the coil pay-off device further includes:

[0024] An inlet assembly, the inlet assembly comprising an inlet porcelain eye, a connection seat and a connection base, the upper end of the connection base is connected to the bottom of the mounting frame, and the inlet porcelain eye is installed on the lower end of the connection base through the connection seat;

[0025] A guide clip assembly is provided between the wire feed assembly and the pay-off wheel assembly, and the guide clip is used to clamp the enameled wire that passes through the wire feed porcelain eye.

[0026] As an optional technical solution for the coil pay-off device, the guide clip assembly includes a first felt clip, a second felt clip and an adjustment handle, the first felt clip is fixed to the mounting frame, the second felt clip is arranged opposite to the first felt clip, and the second felt clip is slidably arranged through a guide rod passing through the mounting frame and the first felt clip, the first end of the adjustment handle passes through the first felt clip and the second felt clip and is threadedly connected to the mounting frame, the second end of the adjustment handle is pressed against the second felt clip away from the first felt clip, and the second end of the adjustment handle is provided with a handle for the user to twist.

[0027] As an optional technical solution for coil pay-off device

[0028] The beneficial effects of the utility model are:

[0029] The coil pay-off device provided by the utility model is provided with a tension adjustment mechanism. On the one hand, the angle between the tension rod and the horizontal plane is maintained by the tension spring, thereby maintaining the height of the tension wheel. On the other hand, the angle between the tension rod and the horizontal plane is maintained by the tension adjustment component at the same time. By adjusting the pulling force of the tension adjustment component on the tension rod, the tension of the pay-off can be adjusted. The greater the pulling force of the tension adjustment component on the tension rod, the greater the tension of the pay-off. When it is necessary to replace enameled wires of different wire diameters or adjust the pay-off tension, it is sufficient to directly adjust the pulling force of the tension adjustment component on the tension rod without manually replacing the tension spring. In addition, the pulling force output by the tension adjustment component can also be adjusted during the pay-off process, thereby meeting the demand for automatic switching of multiple tensions. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0031] Figure 1 The structure diagram of the coil pay-off device provided by the embodiment of the utility model is Figure 1 ;

[0032] Figure 2 It is a partial structural schematic diagram of a coil pay-off device provided in an embodiment of the utility model;

[0033] Figure 3 It is a front view of the coil pay-off device provided by an embodiment of the utility model;

[0034] Figure 4 The structure diagram of the coil pay-off device provided by the embodiment of the utility model is Figure 2 .

[0035] In the figure:

[0036] 100, mounting frame; 200, front cover; 300, extension bracket;

[0037] 10. Pay-off wheel assembly; 101. First wire wheel; 102. Second wire wheel; 103. Motor wire wheel; 104. Third wire wheel;

[0038] 20. Tension adjustment mechanism; 201. Tension wheel; 202. Tension rod; 203. Tension spring; 204. Hook buckle; 205. Wire rod hook; 206. Linear cylinder; 207. Proportional pressure regulating valve; 208. Tension rope; 209. Cylinder anti-jump wheel; 210. Cylinder mounting plate; 211. Indexing shaft;

[0039] 30. Angle sensor; 31. Bearing seat; 32. Fixed seat;

[0040] 40. Scale plate; 50. Lead-out wire wheel;

[0041] 60. Tension measuring and controlling instrument; 601. Force measuring wire wheel; 602. Display panel; 603. Control button; 604. Fixed bracket;

[0042] 70, incoming line assembly; 701, incoming line porcelain eye; 702, connecting seat; 703, connecting base;

[0043] 80. Guide clip assembly; 801. First felt clip; 802. Second felt clip; 803. Adjustment handle;

[0044] 91. First anti-jumping wheel; 911. First wheel frame; 92. Second anti-jumping wheel; 921. Second wheel frame; 93. Third anti-jumping wheel; 94. Encoder. DETAILED DESCRIPTION

[0045] In order to make the technical problems solved by the utility model, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the utility model. It is understandable that the specific embodiments described herein are only used to explain the utility model, rather than to limit the utility model. It should also be noted that, for the convenience of description, only the parts related to the utility model, rather than all of the structures, are shown in the accompanying drawings.

[0046] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0048] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0049] like Figure 1-Figure 4 As shown, this embodiment provides a coil pay-off device for unwinding the enameled wire wound into a coil, and the coil pay-off device includes a mounting frame 100, a pay-off wheel group 10 and a tension adjustment mechanism 20. Among them, the pay-off wheel group 10 is arranged on the mounting frame 100, and the pay-off wheel group 10 is used to unwind the enameled wire; the tension adjustment mechanism 20 includes a tension wheel assembly and a tension adjustment assembly, and the tension wheel assembly includes a tension wheel 201, a tension rod 202 and a tension spring 203. The tension wheel 201 is arranged downstream of the pay-off wheel group 10 and supports the enameled wire. One end of the tension rod 202 is rotatably connected to the mounting frame 100, and the other end of the tension rod 202 is equipped with a tension wheel 201. One end of the tension spring 203 is connected to the mounting frame 100, and the other end of the tension spring 203 is connected to the tension rod 202. The output end of the tension adjustment assembly is transmission-connected to the tension rod 202, and the tension adjustment assembly is used to maintain the horizontal angle of the tension rod 202. The tension of the tension adjustment assembly on the tension rod 202 is adjustable.

[0050] Specifically, the coil pay-off device provided in this embodiment is provided with a tension adjustment mechanism 20. On the one hand, the angle between the tension rod 202 and the horizontal plane is maintained by the tension spring 203, thereby maintaining the height of the tension wheel 201. On the other hand, the angle between the tension rod 202 and the horizontal plane is maintained by the tension adjustment component. By adjusting the pulling force of the tension adjustment component on the tension rod 202, the tension of the pay-off can be adjusted. The greater the pulling force of the tension adjustment component on the tension rod 202, the greater the tension of the pay-off. When it is necessary to replace enameled wires of different wire diameters or adjust the pay-off tension, it is sufficient to directly adjust the pulling force of the tension adjustment component on the tension rod 202 without manually replacing the tension spring 203. In addition, the pulling force output by the tension adjustment component can also be adjusted during the pay-off process, thereby meeting the demand for automatic switching of multiple tensions.

[0051] For example, Figure 2 and Figure 3 As shown, the pay-off wheel group 10 includes a first wire wheel 101, a second wire wheel 102, a motor wire wheel 103 and a third wire wheel 104. The first wire wheel 101, the second wire wheel 102, the motor wire wheel 103 and the third wire wheel 104 are all rotatably arranged on the mounting frame 100. The motor wire wheel 103 is drivingly connected with the output shaft of the pay-off driving motor. The pay-off driving motor drives the motor wire wheel 103 to rotate to drive the enameled wire to be paid out. The enameled wire is sequentially wound around the first wire wheel 101, the second wire wheel 102, the motor wire wheel 103 and the third wire wheel 104. After the first wire wheel 101, the second wire wheel 102, the motor wire wheel 103 and the third wire wheel 104, it is wound around the tension wheel 201 to adjust the tension.

[0052] For example, Figure 1-Figure 4As shown, the tension adjustment assembly includes a linear cylinder 206 and a proportional pressure regulating valve 207. The linear cylinder 206 is mounted on the top of the mounting frame 100 through a cylinder mounting plate 210. The cylinder mounting plate 210 is also provided with a cylinder anti-jump wire wheel 209. The output end of the linear cylinder 206 is connected to the tension rod 202 through a tension rope 208. The tension rope 208 is wound around the cylinder anti-jump wire wheel 209. The proportional pressure regulating valve 207 is mounted on the back of the mounting frame 100. The proportional pressure regulating valve 207 is connected to the linear cylinder 206 through an air pipe. The proportional pressure regulating valve 207 is used to control the gas flow and pressure flowing through the linear cylinder 206, thereby adjusting the tension output by the linear cylinder 206, thereby adjusting the tension of the enameled wire.

[0053] For example, Figure 2 and Figure 3 As shown, the tension wheel assembly also includes a hook buckle 204 and a wire rod hook 205. The hook buckle 204 is sleeved on the tension rod 202, and the hook buckle 204 is locked to the tension rod 202 by a fastening screw. The wire rod hook 205 is rotatably connected to the hook buckle 204. The rotation axis of the wire rod hook 205 is parallel to the rotation axis of the tension rod 202. The tension spring 203 and the tension rope 208 are both connected to the wire rod hook 205.

[0054] For example, Figure 2 and Figure 3 As shown, one end of the tension rod 202 is rotatably connected to the mounting frame 100 through the indexing shaft 211. The coil pay-off device also includes an angle sensor 30. The angle sensor 30 is located on the back of the mounting frame 100. A bearing seat 31 is fixed on the mounting frame 100. The angle sensor 30 is installed on the bearing seat 31 through a fixing seat 32. The indexing shaft 211 is passed through the bearing seat 31 and connected to the detection end of the angle sensor 30 through a coupling. The angle sensor 30 is used to detect the angle between the tension rod 202 and the horizontal plane, thereby reflecting the magnitude of the pay-off tension. The smaller the angle between the tension rod 202 and the horizontal plane, the greater the pay-off tension; the larger the angle between the tension rod 202 and the horizontal plane, the smaller the pay-off tension.

[0055] For example, Figure 2 and Figure 3 As shown, the coil pay-off device also includes a scale plate 40, which is arranged on the front of the mounting frame 100. The scale plate 40 is arranged in an arc structure, and the scale plate 40 is extended around the rotation axis of the tension rod 202. The scale plate 40 is provided with scale lines distributed in the same direction as the extension direction thereof. The scale plate 40 is used to indicate the angle between the tension rod 202 and the horizontal plane, thereby reflecting the magnitude of the pay-off tension. The smaller the angle between the tension rod 202 and the horizontal plane, the greater the pay-off tension; the larger the angle between the tension rod 202 and the horizontal plane, the smaller the pay-off tension.

[0056] For example, Figure 1-Figure 4 As shown, the coil pay-off device further includes an extension bracket 300 , which is connected to the mounting bracket 100 and is located beside the mounting bracket 100 .

[0057] For example, Figure 1-Figure 4 As shown, the coil pay-off device also includes a tension measuring and controlling instrument 60, which is arranged downstream of the tension wheel assembly. The tension measuring and controlling instrument 60 is installed on the extension bracket 300 through a fixed bracket 604. The enameled wire is wound around the detection end of the tension measuring and controlling instrument 60. The tension measuring and controlling instrument is electrically connected to the tension adjusting assembly, specifically to the proportional pressure regulating valve 207. The tension measuring and controlling instrument can control the tension adjusting assembly to adjust the pulling force on the tension rod 202.

[0058] For example, Figure 1-Figure 4 As shown, the detection end of the tension measuring and controlling instrument 60 is set as a force measuring wire wheel 601. After the enameled wire is wound around the tension wheel 201 and then around the lead-out wire wheel 50 and released, it continues to be wound around the force measuring wire wheel 601 downstream.

[0059] For example, Figure 3 As shown, the tension measuring and controlling instrument 60 is provided with a display panel 602 and a control button 603. The display panel 602 is used to display the value of the pay-off tension, and the control button 603 is used to input a control signal, so that the user can input a control signal for adjusting the tension. Specifically, a control module is provided in the tension measuring and controlling instrument 60. The control module adopts a single-chip microcomputer of a model such as STM32, and can install and run a control program, so as to control the display of the tension and the control signal sent to the proportional pressure regulating valve 207.

[0060] For example, Figure 1-Figure 4 As shown, the coil pay-off device also includes: a first anti-jumping wire wheel 91, a second anti-jumping wire wheel 92, a third anti-jumping wire wheel 93 and an encoder 94, which are arranged downstream of the tension measuring and controlling instrument 60. The enameled wire released through the tension measuring and controlling instrument 60 is sequentially wound around the first anti-jumping wire wheel 91, the second anti-jumping wire wheel 92, the third anti-jumping wire wheel 93 and the wire wheels of the encoder 94, wherein the first anti-jumping wire wheel 91 is rotatably arranged around a horizontal axis, and the second anti-jumping wire wheel 92, the third anti-jumping wire wheel 93 and the wire wheels of the encoder 94 are rotatably arranged around a vertical axis.

[0061] For example, Figure 1-Figure 4 As shown, the first anti-jumping wheel 91 is installed on the extension bracket 300 through the first wheel frame 911, and the second anti-jumping wheel 92, the third anti-jumping wheel 93 and the encoder 94 are all installed on the extension bracket 300 through the second wheel frame 921.

[0062] Exemplarily, the coil pay-off device further includes an inlet assembly 70 and a guide clip assembly 80. The inlet assembly 70 includes an inlet porcelain eye 701, a connection seat 702 and a connection base 703, the upper end of the connection base 703 is connected to the bottom of the mounting frame 100, and the inlet porcelain eye 701 is installed at the lower end of the connection base 703 through the connection seat 702. The guide clip assembly 80 is arranged between the inlet assembly 70 and the pay-off wheel assembly 10, and the guide clip is used to clamp the enameled wire inserted through the inlet porcelain eye 701.

[0063] For example, Figure 2 and Figure 3 As shown, the guide clip assembly 80 includes a first felt clip 801, a second felt clip 802 and an adjustment handle 803, the first felt clip 801 is fixed to the mounting frame 100, the second felt clip 802 is arranged opposite to the first felt clip 801, and the second felt clip 802 is slidably arranged through a guide rod passing through the mounting frame 100 and the first felt clip 801, the first end of the adjustment handle 803 passes through the first felt clip 801 and the second felt clip 802 and is threadedly connected to the mounting frame 100, the second end of the adjustment handle 803 is pressed against the second felt clip 802 away from the first felt clip 801, and the second end of the adjustment handle 803 is provided with a handle for the user to twist.

[0064] Specifically, the first felt clip 801 and the second felt clip 802 have a clamping effect on the enameled wire entering through the wire inlet porcelain eye 701, so as to keep the wire inlet direction from deviating. On the other hand, the first felt clip 801 and the second felt clip 802 are made of felt material, which can wipe the surface of the enameled wire to keep the surface clean. The setting of the adjustment handle 803 can adjust the distance between the first felt clip 801 and the second felt clip 802, so as to adjust the clamping force on the enameled wire and adapt to the wire diameter adjustment of the enameled wire, thereby improving versatility.

[0065] For example, Figure 1 As shown, the coil pay-off device further includes a front cover plate 200, which is rotatably arranged on the front side of the mounting frame 100, one side of the front cover plate 200 is rotatably connected to the side of the mounting frame 100 through a hinge, and the other side of the front cover plate 200 is detachably connected to the other side of the mounting frame 100 through a buckle. The front cover plate 200 serves to protect the pay-off wheel assembly 10, the tension adjustment mechanism 20, the dial 40 and the guide clip assembly 80.

[0066] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A coil pay-off device, characterized in that: include: Mounting frame (100); A pay-off wheel assembly (10), arranged on the mounting frame (100), the pay-off wheel assembly (10) being used for unwinding the enameled wire; A tension adjustment mechanism (20) comprises a tension wheel assembly and a tension adjustment assembly, wherein the tension wheel assembly comprises a tension wheel (201), a tension rod (202) and a tension spring (203); the tension wheel (201) is arranged downstream of the pay-off wheel group (10) and supports the enameled wire; one end of the tension rod (202) is rotatably connected to the mounting frame (100); the other end of the tension rod (202) is mounted with the tension wheel (201); one end of the tension spring (203) is connected to the mounting frame (100); the other end of the tension spring (203) is connected to the tension rod (202); the output end of the tension adjustment assembly is transmission-connected to the tension rod (202); the tension adjustment assembly is used to maintain the horizontal angle of the tension rod (202); and the tension of the tension rod (202) by the tension adjustment assembly is adjustable.

2. The coil pay-off device according to claim 1, characterized in that: The tension adjustment assembly comprises: A linear cylinder (206) is mounted on the mounting frame (100), and an output end of the linear cylinder (206) is connected to the tension rod (202) via a tension rope (208); A proportional pressure regulating valve (207) is installed on the mounting frame (100), the proportional pressure regulating valve (207) is connected to the linear cylinder (206), and the proportional pressure regulating valve (207) is used to control the gas flow and pressure flowing through the linear cylinder (206).

3. The coil pay-off device according to claim 2, characterized in that: The tension wheel assembly also includes: A hook buckle (204) and a wire rod hook (205), wherein the hook buckle (204) is sleeved on the tension rod (202), and the hook buckle (204) is locked to the tension rod (202) by a fastening screw, the wire rod hook (205) is rotatably connected to the hook buckle (204), the rotation axis of the wire rod hook (205) is parallel to the rotation axis of the tension rod (202), and the tension spring (203) and the tension rope (208) are both connected to the wire rod hook (205).

4. The coil pay-off device according to claim 1, characterized in that: The coil pay-off device also includes: A tension measuring and controlling instrument (60) is arranged downstream of the tension wheel assembly. The enameled wire is wound around the detection end of the tension measuring and controlling instrument (60). The tension measuring and controlling instrument (60) is electrically connected to the tension adjusting assembly. The tension measuring and controlling instrument (60) can control the tension adjusting assembly to adjust the pulling force on the tension rod (202).

5. The coil pay-off device according to claim 4, characterized in that: The tension measuring and controlling instrument (60) is provided with a display panel (602) and a control button (603), wherein the display panel (602) is used to display the value of the pay-off tension, and the control button (603) is used to input a control signal.

6. The coil pay-off device according to claim 4, characterized in that: The coil pay-off device also includes: a first anti-jumping wire wheel (91), a second anti-jumping wire wheel (92), a third anti-jumping wire wheel (93) and an encoder (94) arranged downstream of the tension measuring and controlling instrument (60). The enameled wire released through the tension measuring and controlling instrument (60) is sequentially wound around the first anti-jumping wire wheel (91), the second anti-jumping wire wheel (92), the third anti-jumping wire wheel (93) and the wire wheels of the encoder (94), wherein the first anti-jumping wire wheel (91) is rotatable around a horizontal axis, and the second anti-jumping wire wheel (92), the third anti-jumping wire wheel (93) and the wire wheels of the encoder (94) are rotatable around a vertical axis.

7. The coil pay-off device according to any one of claims 1 to 6, characterized in that: One end of the tension rod (202) is rotatably connected to the mounting frame (100) via a transfer shaft (211); the coil unwinding device also includes an angle sensor (30); a bearing seat (31) is fixed to the mounting frame (100); the angle sensor (30) is mounted on the bearing seat (31) via a fixing seat (32); the transfer shaft (211) passes through the bearing seat (31) and is connected to a detection end of the angle sensor (30) via a coupling.

8. The coil pay-off device according to any one of claims 1 to 6, characterized in that: The coil pay-off device also includes: A scale plate (40), the scale plate (40) being arranged on the mounting frame (100), the scale plate (40) being arranged in an arc-shaped structure, and the scale plate (40) being arranged to extend around the rotation axis of the tension rod (202), and the scale plate (40) being provided with scale lines distributed in the same direction as the extension direction thereof.

9. The coil pay-off device according to any one of claims 1 to 6, characterized in that: The coil pay-off device also includes: An inlet assembly (70), the inlet assembly (70) comprising an inlet porcelain eye (701), a connection seat (702) and a connection base (703), the upper end of the connection base (703) being connected to the bottom of the mounting frame (100), and the inlet porcelain eye (701) being mounted on the lower end of the connection base (703) through the connection seat (702); A guide clamping piece assembly (80) is provided between the wire inlet assembly (70) and the wire pay-off wheel assembly (10), and the guide clamping piece is used to clamp the enameled wire inserted through the wire inlet porcelain eyelet (701).

10. The coil pay-off device according to claim 9, characterized in that: The guide clip assembly (80) comprises a first felt clip (801), a second felt clip (802) and an adjustment handle (803); the first felt clip (801) is fixed to the mounting frame (100); the second felt clip (802) is arranged opposite to the first felt clip (801), and the second felt clip (802) is slidably arranged through a guide rod passing through the mounting frame (100) and the first felt clip (801); the first end of the adjustment handle (803) passes through the first felt clip (801) and the second felt clip (802) and is threadedly connected to the mounting frame (100); the second end of the adjustment handle (803) is pressed against the second felt clip (802) away from the first felt clip (801); and the second end of the adjustment handle (803) is provided with a handle for a user to twist.

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