Coil winding device

Abstract

The utility model relates to the field of coil winding, and provides a coil winding device, which comprises a winding unit, a winding unit and a winding unit, the wire guiding unit comprises a moving part, a driving part and a wire guiding mechanism, the driving part is used for driving the moving part to move, and the wire guiding mechanism is arranged on the moving part; and the transmission unit comprises an arc-shaped rack, a transmission shaft and two transmission gears, the arc-shaped rack is in transmission connection with the driving source, the transmission shaft is rotatably arranged and is in transmission connection with the driving part, and the two transmission gears are arranged at the two ends of the transmission shaft correspondingly and located on the rotating path of the arc-shaped rack. Synchronous driving of the wire winding unit and the wire guiding unit can be achieved only through one driving source, the winding power and the moving speed of a wound wire are kept at the same frequency, the possibility of coil winding and disorder is reduced, the winding quality is improved, automatic reversing of the wire guiding mechanism can be achieved through the transmission unit, and the production efficiency is improved. And reciprocating uniform winding of the winding wire is realized.

Description

Technical Field

[0001] The present application relates to the technical field of coil winding, and in particular to a coil winding device. Background Art

[0002] The electromagnetic clutch controls the engagement and disengagement of the clutch by switching on and off the power of the coil. The electromagnetic clutch has relatively high requirements for the coil and material, and the coil may work in different environments (high temperature, vibration, dust, humidity, etc.), so higher requirements are also placed on the winding stability of the coil.

[0003] The winding of the coil is usually operated by a coil winding device, which mainly includes a winding device and a winding device. The winding device is used to pull the winding wire to make it move horizontally, and the winding device is used to drive the coil drum to rotate so that it can evenly wind the winding wire.

[0004] At present, the winding device and the winding device of the coil winding device are driven by separate driving motors respectively. When the rotation speed of the winding motor fluctuates, the winding frequency of the winding wire will change. Since the winding device still maintains the original traction rate, problems such as excessive jumper gap will occur, resulting in the coil wiring not being tight enough. Utility Model Content

[0005] Based on this, the utility model provides a coil winding device, which effectively solves the problem that the existing coil winding device is prone to excessive jumper gaps during winding, resulting in the coil being arranged not tightly enough.

[0006] The utility model provides a coil winding device, which is used to wind a winding wire onto a coil barrel, and comprises:

[0007] The winding unit comprises a support frame, a fastening mechanism and a driving source arranged on the support frame, wherein the fastening mechanism is used to fix the coil drum in a first horizontal direction, and the driving source is used to drive the fastening mechanism to rotate, so as to drive the coil drum fixed to the fastening mechanism to rotate;

[0008] A wire unit, comprising a moving member, a driving member and a wire mechanism, wherein the driving member is used to drive the moving member to move in a direction parallel to the first horizontal direction, and the wire mechanism is arranged on the moving member, and the wire mechanism is used to guide the winding wire so that the winding wire passes through the wire mechanism;

[0009] The transmission unit includes an arc-shaped rack, a transmission shaft and two transmission gears. The arc-shaped rack is connected to the driving source so that the arc-shaped rack rotates around its center under the drive of the driving source. The transmission shaft is rotatably arranged on the opposite side of the tooth surface of the arc-shaped rack and is connected to the driving member. The two transmission gears are respectively arranged at both ends of the transmission shaft and are both located on the rotation path of the arc-shaped rack, so that the arc-shaped rack can alternately mesh with the two transmission gears during rotation.

[0010] In one embodiment, the support frame includes a fixed frame fixed to the positioning base plate and a movable frame movably arranged on the positioning base plate, a rotating seat is rotatably mounted on the fixed frame, the fastening mechanism is arranged on the movable frame, and a docking structure is arranged between the fastening mechanism and the rotating seat. The movable frame can be driven to move so that the fastening mechanism and the rotating seat can be engaged or separated through the docking structure.

[0011] In one embodiment, the docking structure includes a plug connector and a plug sleeve, the plug sleeve is provided with a plug hole matching the plug connector, and the plug connector and the plug sleeve are circumferentially limited;

[0012] The plug connector is arranged on the fastening mechanism, and the plug sleeve is arranged on the rotating seat, or the plug sleeve is arranged on the fastening mechanism, and the plug connector is arranged on the rotating seat.

[0013] In one embodiment, the fastening mechanism comprises:

[0014] A rotating shaft, the rotating shaft is rotatably mounted on the supporting frame and is drivingly connected to the driving source, and the docking structure is arranged between the rotating shaft and the rotating seat;

[0015] A variable diameter support assembly, comprising a movable sleeve, a locking piece and a plurality of support pieces, wherein the movable sleeve is movably arranged at one end of the rotating shaft, the locking piece is used to lock the movable sleeve, and the support pieces are distributed along the circumference of the rotating shaft, and each of the support pieces comprises a first transmission bar hinged to the movable sleeve, a second transmission bar hinged to one end of the rotating shaft away from the movable sleeve, and a support bar hinged between the first transmission bar and the second transmission bar.

[0016] In one of the embodiments, the locking member includes a locking screw sleeve, a thread groove is provided on the rotating shaft, the locking screw sleeve is threadedly connected to the thread groove, and the locking screw sleeve is rotationally connected to the movable sleeve.

[0017] In one embodiment, one end of the rotating shaft away from the movable frame is fixedly connected to a limited end plate; and / or

[0018] The rotating shaft is also fixedly connected with a connecting sleeve, the connecting sleeve is located at a side of the rotating shaft away from the movable frame, the outer diameter of the connecting sleeve is equal to the outer diameter of the movable sleeve, and the second transmission bar is hinged to the connecting sleeve.

[0019] In one embodiment, a mounting plate is fixedly connected to a side of the rotating seat away from the fixing frame, and the arc-shaped rack is arranged on the mounting plate;

[0020] The positioning base plate is fixedly connected with a support column, the support column is located on a side of the fixed frame away from the movable frame, a connecting frame is fixed to the upper end of the support column, and the transmission shaft is rotatably connected to the connecting frame in a direction perpendicular to the rotating shaft.

[0021] In one embodiment, the arc where the arc-shaped rack is located is a half arc.

[0022] In one embodiment, the driving member includes a screw rod rotatably disposed on a mounting frame, the moving member includes a nut seat threadedly connected to the screw rod, the nut seat is slidably mounted on the mounting frame, and the screw rod and the transmission shaft are connected via a pair of meshing bevel gears.

[0023] In one of the embodiments, the wire guiding mechanism includes a mounting block fixedly mounted on the movable member, the mounting block is provided with a wire threading groove, the mounting block is provided with a guide wheel, and the guide wheel is located at the lower side of the wire threading groove.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] The coil winding device connects the winding unit and the wire unit through a transmission unit, so that the synchronous driving of the winding unit and the wire unit can be realized by only one driving source. When the winding power of the winding unit fluctuates, the moving speed of the wire mechanism of the corresponding wire unit will also change adaptively, so that the coil is evenly distributed on the coil barrel, reducing the possibility of coil winding and disorder, and improving the winding quality. Moreover, through the structural design of the arc-shaped rack and two transmission gears of the transmission unit, the arc-shaped rack can alternately mesh with the two transmission gears, so that the wire mechanism can be automatically reversed, and the reciprocating and uniform winding of the winding wire can be realized, with high winding efficiency and good effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of a structure in which a coil winding device is installed with a coil barrel in one embodiment;

[0027] Figure 2 A schematic diagram of a three-dimensional structure of a coil winding device in one embodiment from a first perspective;

[0028] Figure 3 It is a schematic diagram of the three-dimensional structure from a second perspective of a coil winding device in an embodiment.

[0029] The figure marks in the drawings of the specification include: winding unit 1, supporting frame 11, fixed frame 111, movable frame 112, movable plate 113, handle 114, fastening mechanism 12, rotating shaft 121, first transmission bar 122, second transmission bar 123, supporting bar 124, movable sleeve 125, locking screw sleeve 126, plug connector 127, rotating seat 128, plug sleeve 129, thread groove 1210, limiting end plate 1211, connecting sleeve 1212, driving source 13, wire unit 2, mounting frame 201, driving member 202, moving member 203, mounting block 204, guide wheel 205, transmission unit 3, mounting plate 301, arc rack 302, transmission gear 303, transmission shaft 304, first bevel gear 305, second bevel gear 306, connecting shaft 307, supporting column 308, connecting frame 309, coil tube 4, positioning base plate 5. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0031] It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the present invention.

[0032] The structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportion or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0033] The directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "middle", "longitudinal", "lateral", "horizontal", "inner", "outer", "radial", "circumferential" and the like in this specification are based on the directions or positional relationships shown in the drawings and are only for the convenience of simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0034] In the existing coil winding device, the wire winding device and the winding device are driven by separate driving motors respectively. When the speed of the winding motor fluctuates, the winding frequency of the winding wire will change. Since the wire winding device still maintains the original traction rate, problems such as excessive jumper gap will occur, resulting in the coil wiring not being tight enough.

[0035] The utility model aims at the problems existing in the existing coil winding device and provides a coil winding device for winding a winding wire onto a coil drum 4, which specifically comprises:

[0036] The winding unit 1 includes a support frame 11 and a fastening mechanism 12 and a driving source 13 disposed on the support frame 11. The fastening mechanism 12 is used to fix the coil drum 4 in a first horizontal direction. The driving source 13 is used to drive the fastening mechanism 12 to rotate, so as to drive the coil drum 4 fixed to the fastening mechanism 12 to rotate.

[0037] The wire unit 2 includes a moving member 203, a driving member 202 and a wire mechanism, wherein the driving member 202 is used to drive the moving member 203 to move in a direction parallel to the first horizontal direction, and the wire mechanism is arranged on the moving member 203, and the wire mechanism is used to guide the winding wire so that the winding wire passes through the wire mechanism;

[0038] The transmission unit 3 includes an arc-shaped rack 302, a transmission shaft 304 and two transmission gears 303. The arc-shaped rack 302 is connected to the driving source 13 so that the arc-shaped rack 302 rotates around its center under the drive of the driving source 13. The transmission shaft 304 is rotatably arranged on the opposite side of the tooth surface of the arc-shaped rack 302 and is connected to the driving member 202. The two transmission gears 303 are respectively arranged at both ends of the transmission shaft 304 and are both located on the rotation path of the arc-shaped rack 302, so that the arc-shaped rack 302 can alternately mesh with the two transmission gears 303 during the rotation process.

[0039] When the utility model is used, the coil drum 4 to be wound is first fixed by the fastening mechanism 12, and then the winding wire is led out by the wire guide mechanism and wound onto the coil drum 4, and then the driving source 13 is started, and the driving source 13 drives the coil drum 4 to rotate, and the winding wire is automatically wound. At the same time, the driving source 13 drives the arc-shaped rack 302 to rotate. Since the two transmission gears 303 are both located on the rotation trajectory of the arc-shaped rack 302, the arc-shaped rack 302 will alternately mesh with the two transmission gears 303 during the rotation of the arc-shaped rack 302. When the arc-shaped rack 302 meshes with one of the transmission gears 303, The transmission shaft 304 is driven to rotate in a first rotation direction. When the arc-shaped rack 302 is meshed with another transmission gear 303, the transmission shaft 304 is driven to rotate in a second rotation direction, thereby realizing the reciprocating rotation of the transmission shaft 304. The rotation of the transmission shaft 304 transmits the torque to the driving member 202. The driving member 202 drives the moving member 203 to move reciprocatingly horizontally, driving the wire mechanism to move reciprocatingly horizontally, so that the wire mechanism pulls the winding wire horizontally back and forth during the winding process of the winding unit 1, so that the winding wire is evenly wound on the coil drum 4 along the axial direction of the coil drum 4 until the winding of the coil is completed.

[0040] The utility model drives the winding unit 1 and the conductor unit 2 through the transmission unit 3, so that the synchronous driving of the winding unit 1 and the conductor unit 2 can be realized by only using one driving source 13. When the winding power of the winding unit 1 fluctuates, the moving speed of the conductor mechanism of the corresponding conductor unit 2 will also change adaptively, so as to realize the uniform distribution of the coil on the coil barrel 4, reduce the possibility of coil winding and disorder, and improve the winding quality. Moreover, the automatic reversing of the conductor mechanism can be realized through the structural design of the transmission unit 3, and the reciprocating uniform winding of the winding wire can be realized, with high winding efficiency and good effect.

[0041] The coil winding device provided by the utility model is described in detail below in conjunction with the accompanying drawings.

[0042] like Figure 1 As shown, the coil winding device includes a positioning base plate 5, a winding unit 1, a transmission unit 3 and a conductor unit 2.

[0043] The positioning base plate 5 is used to provide support for the components of the coil winding device, and can be any suitable structural form, for example, see Figure 1 In this embodiment, the positioning base plate 5 is a rectangular plane plate that can be supported on the ground or a work surface, and the winding unit 1, the transmission unit 3 and the wire unit 2 are all arranged on the positioning base plate 5.

[0044] The winding unit 1 is used to fasten the coil drum 4 and drive the coil drum 4 to rotate to realize automatic winding of the winding wire. Figure 2In this embodiment, the winding unit 1 includes a support frame 11, a fastening mechanism 12 and a driving source 13.

[0045] like Figure 2 As shown, the support frame 11 includes a fixed frame 111 and a movable frame 112. The fixed frame 111 and the movable frame 112 are mainly used to provide support for components such as the fastening mechanism 12 and the driving source 13, and they can be any suitable structural form. Figure 2 The embodiment in which both the fixed frame 111 and the movable frame 112 are column-type structures is shown for illustrative purposes only.

[0046] More specifically, in this embodiment, the lower end of the fixed frame 111 is fixed to the positioning base plate 5 by welding, bolt connection, etc., and the movable frame 112 is movably arranged on the positioning base plate 5, for example, see Figure 2 A limiting slide groove is provided on the positioning base plate 5 along the length direction of the positioning base plate 5, the fixed frame 111 is located on the extension line of the limiting slide groove, and a movable plate 113 is provided at the bottom of the movable frame 112, and the movable plate 113 slides in cooperation with the limiting slide groove. This structural design enables the movable frame 112 to move horizontally toward the fixed frame 111 or horizontally away from the fixed frame 111, providing a basis for installing and disassembling coil tubes 4 of different specifications and realizing power transmission with the winding unit 1 and the conductor unit 2. For details, please refer to the description below.

[0047] Further, see Figure 2 A handle 114 is fixedly connected to one side of the movable frame 112 facing away from the fixed frame 111. By providing the handle 114, the movable frame 112 can be pushed and pulled to quickly realize the disassembly and assembly of the entire device, and the operation is more convenient.

[0048] See also Figure 2 The fastening mechanism 12 is arranged between the fixed frame 111 and the movable frame 112, and is used to fix the coil drum 4 in the first horizontal direction. It specifically includes a rotating shaft 121 and a variable diameter support assembly arranged on the rotating shaft 121, wherein the variable diameter support assembly is used to fasten the coil drums 4 of different specifications, and the rotating shaft 121 is used to transmit the torque of the driving source 13 to drive the coil drum 4 fastened by the variable diameter support assembly to rotate. Among them, the first horizontal direction can be understood as Figure 1 The length direction of the positioning base plate 5 is shown in FIG.

[0049] Specifically, see Figure 2The rotating shaft 121 is horizontally arranged between the movable frame 112 and the fixed frame 111 in a manner parallel to the limiting slide groove, and one end of the rotating shaft 121 is rotatably matched with the movable frame 112 and driven by the driving source 13. For example, the right end of the rotating shaft 121 can be rotatably mounted with the movable frame 112 by means of bearings and other components. The driving source 13 is installed on the outer side of the movable frame 112, which can be a rotating motor, a rotating hydraulic motor, a rotating cylinder, etc., see Figure 2 In this embodiment, the driving source 13 is preferably a rotary motor, and the output shaft of the rotary motor can be connected to the right end of the rotating shaft 121 by means of a coupling or other components to achieve a transmission connection between the rotary motor and the rotating shaft 121.

[0050] A docking structure that can be docked and separated is provided between the other end, i.e., the left end, of the rotating shaft 121 and the rotating seat 128 on the fixing frame 111. For example, see Figure 2 The docking structure includes a plug-in portion provided on the rotating shaft 121 and a plug-in matching portion provided on the rotating seat 128. Specifically, in this embodiment, the plug-in portion includes a plug connector 127 provided at the end of the rotating shaft 121, and the plug-in matching portion includes a plug sleeve 129 provided on the rotating seat 128. The plug sleeve 129 has a plug-in hole that matches the shape of the plug connector 127. In this way, the rotating shaft 121 and the rotating seat 128 can be quickly docked. Of course, in other embodiments, the plug-in portion and the plug-in matching portion can also be in the opposite structural form, that is, the plug-in portion is the plug sleeve 129, and the plug-in matching portion is the plug connector 127.

[0051] In this embodiment, in order to facilitate the power transmission between the rotating shaft 121 and the rotating seat 128, the plug connector 127 and the plug sleeve 129 are circumferentially limited. Figure 2 , four bar-shaped limiting protrusions are arranged on the plug connector 127, and four limiting grooves matching the four limiting protrusions are arranged in the plug hole. When the plug connector 127 is plugged into the plug hole, the four limiting protrusions are just embedded in the four limiting grooves, thereby realizing the circumferential limiting of the plug connector 127 and the plug sleeve 129. Of course, in some embodiments, the circumferential limiting method can also be other, for example, the cross-sectional shape of the plug connector 127 and the plug hole can be set to a polygon, for example, the plug connector 127 and the plug hole can be circumferentially limited by a flat key, a spline or other structure.

[0052] Based on the design of the above-mentioned docking structure, when the movable frame 112 is pulled to the right, the rotating shaft 121 can be separated from the rotating seat 128, and at this time, it is convenient to insert the coil tube 4 from the separated end of the rotating shaft 121 and fix it on the variable diameter support assembly; and when the movable frame 112 is pushed to the left, the rotating shaft 121 and the rotating seat 128 can be engaged through the docking structure. At this time, the power transmission between the rotating shaft 121 and the rotating seat 128 can be realized through the docking structure.

[0053] See also Figure 2 The variable diameter support assembly includes a movable sleeve 125, a locking member, and a plurality of support members, wherein the movable sleeve 125 is movably disposed on the rotating shaft 121, and the number of the support members is at least two. Figure 2 An embodiment in which four support members are provided is exemplified, and each support member is distributed in an annular manner along the circumference of the rotating shaft 121 .

[0054] See also Figure 2 and Figure 3 Each support member includes a first transmission bar 122, a second transmission bar 123 and a support bar 124. The support bar 124 is hinged between the two transmission bars to form a three-section structure of the support member. The other end of the first transmission bar 122 is hinged to the movable sleeve 125, and the other end of the second transmission bar 123 is hinged to the side of the rotating shaft 121 close to the movable frame 112.

[0055] By means of the inner diameter support assembly arranged by the above structure, when the coil tube 4 is sleeved on the inner diameter support assembly and the movable sleeve 125 moves toward the direction close to the movable frame 112, due to the hinged action of the two transmission bars, the outward expansion of several support bars 124 can be realized. When each support bar 124 completely presses the coil tube 4 from the inside, the internal support of the coil tube 4 can be realized. Similarly, when the movable sleeve 125 moves in the opposite direction, the internal support of the coil tube 4 can be released. This support structure can realize the fastening of coil tubes 4 of different specifications and has stronger versatility.

[0056] The locking member is used to lock the position of the movable sleeve 125 after it is in place, so as to ensure that the support member provides stable support for the coil bobbin 4. Figure 2 The locking member includes a locking screw sleeve 126, a thread groove 1210 is provided on the rotating shaft 121, the locking screw sleeve 126 is threadedly connected to the thread groove 1210, and the locking screw sleeve 126 is rotatably connected to the movable sleeve 125, for example, the left half of the movable sleeve 125 is rotatably sleeved on the right half of the locking screw sleeve 126. In this way, when the locking screw sleeve 126 moves spirally along the thread groove 1210, it can drive the movable sleeve 125 to move horizontally on the rotating shaft 121, and the movable sleeve 125 is positioned after it moves into place.

[0057] Furthermore, the rotating shaft 121 is also fixedly connected to a limiting end plate 1211, and the limiting end plate 1211 is located at one end of the rotating shaft 121 close to the movable frame 112, see Figure 1 The limiting end plate 1211 is used to axially limit the coil drum 4 to ensure the precise positioning of the coil drum 4.

[0058] Further, see Figure 3The rotating shaft 121 is also fixedly connected with a connecting sleeve 1212, which is located on the side of the limiting end plate 1211 away from the movable frame 112. The outer diameter of the connecting sleeve 1212 is equal to the outer diameter of the movable sleeve 125, and the right ends of the four supporting members are hinged to the connecting sleeve 1212. In this way, the hinge heights at both ends of the supporting members can be consistent, ensuring that the movement of the two transmission bars remains symmetrical, and then ensuring that the supporting bar 124 maintains a horizontal state, so as to provide stable internal support for the coil barrel 4.

[0059] See also Figure 2 In this embodiment, a mounting frame 201 for mounting the wire unit 2 is provided on the horizontal side of the winding unit 1. The mounting frame 201 is a long strip frame structure. The mounting frame 201 is supported on the positioning base plate 5 by two columns. The height of the mounting frame 201 is substantially flush with the height of the rotating shaft 121, and the mounting frame 201 and the rotating shaft 121 are parallel to each other and horizontally opposite to each other. The interior of the mounting frame 201 has a limiting guide groove extending along its length direction.

[0060] See also Figure 2 The wire unit 2 includes a moving part 203, a driving part 202 and a wire mechanism. The wire mechanism is arranged on the moving part 203. The driving part 202 is used to drive the moving part 203 to move in a direction parallel to the first horizontal direction, that is, to move horizontally along the length direction of the positioning base plate 5. In this way, the driving part 202 can drive the wire mechanism to move horizontally to realize the horizontal traction of the winding wire.

[0061] Specifically, see Figure 2 The driving member 202 includes a screw rod rotatably arranged in the limiting guide groove of the mounting frame 201, and the moving member 203 includes a nut seat, which is slidably matched with the limiting guide groove, and the nut seat is threadedly connected with the screw rod, and the wire guide mechanism is installed on the nut seat. In this way, by rotating the screw rod, the nut seat can be driven to move horizontally along the mounting frame 201 under the limiting guide function of the limiting guide groove and the thread transmission function of the screw rod, so as to realize the horizontal traction of the winding wire.

[0062] See also Figure 2 The wire guide mechanism includes a mounting block 204 and a guide wheel 205. The mounting block 204 is fixedly mounted on the top of the nut seat, and a threading groove is provided on the mounting block 204. The guide wheel 205 is rotatably mounted on the front side of the mounting block 204 in a direction parallel to the screw and is located below the threading groove. In this way, the winding wire is horizontally pulled through the threading groove, and the winding wire is guided through the guide wheel 205, which can ensure smooth winding wire output.

[0063] By driving the screw rod to rotate back and forth through the conductor unit 2 of the above structure, the nut seat can be driven to move back and forth along the limiting guide groove, thereby driving the lead-in mechanism to reciprocate, realizing the back and forth traction of the winding wire, and further realizing the back and forth winding of the coil barrel 4.

[0064] In this embodiment, the transmission unit 3 is connected between the winding unit 1 and the conductor unit 2, and is used to transmit the power of the winding unit 1 to the conductor unit 2, so as to achieve synchronous driving of the winding unit 1 and the conductor unit 2 through a single power source, ensuring that the frequency of the winding and the winding wire remains consistent.

[0065] See also Figure 3 The transmission unit 3 includes an arc-shaped rack 302, a transmission shaft 304 and two transmission gears 303. The arc-shaped rack 302 is driven to rotate by the driving source 13. Specifically, a circular mounting plate 301 is coaxially fixed to the side of the rotating seat 128 away from the rotating shaft 121. The arc-shaped rack 302 is fixedly mounted on the mounting plate 301, and the arc-shaped rack 302 is coaxial with the mounting plate 301, and the tooth surface of the arc-shaped rack 302 faces the side away from the mounting plate 301. In this way, when the rotating shaft 121 is engaged with the rotating seat 128, the driving source 13 can transmit the torque to the mounting plate 301 through the rotating shaft 121, thereby driving the arc-shaped rack 302 to rotate.

[0066] See also Figure 3 A support column 308 is also fixedly mounted on the positioning base plate 5. The support column 308 is located on the side of the fixed frame 111 away from the movable frame 112. A connecting frame 309 is fixed to the upper end of the support column 308. The transmission shaft 304 is rotatably mounted on the connecting frame 309 in a direction perpendicular to the rotating shaft 121 and is located on the opposite side of the tooth surface of the arc-shaped rack 302. In terms of vertical height, the transmission shaft 304 is just flush with the center of the mounting plate 301, and the length of the transmission shaft 304 is the same as the diameter of the circle where the arc-shaped rack 302 is located. Two transmission gears 303 are respectively fixed at both ends of the transmission shaft 304. In this way, since the length of the transmission shaft 304 is the same as the diameter of the circle where the arc-shaped rack 302 is located, the transmission gears 303 fixed at both ends of the transmission shaft 304 are just located on the rotation trajectory of the arc-shaped rack 302 rotating with the mounting plate 301, so that the arc-shaped rack 302 can alternately mesh with the two transmission gears 303 during the rotation process, thereby driving the transmission shaft 304 to rotate, and since the driving directions of the arc-shaped rack 302 to the two transmission gears 303 are just opposite, the arc-shaped rack 302 can drive the transmission shaft 304 to rotate back and forth by alternately meshing with the two transmission gears 303 during the rotation process.

[0067] Further, see Figure 3 In this embodiment, the arc where the arc-shaped rack 302 is located is a half arc. In this way, the arc-shaped rack 302 can seamlessly mesh with the two transmission gears 303 alternately during the rotation process, ensuring uniform winding of the coil.

[0068] A transmission mechanism is provided between the end of the transmission shaft 304 close to the wire unit 2 and the screw rod for power transmission. Figure 2 and Figure 3 A first bevel gear 305 is laterally connected to the end of the transmission gear 303 near the mounting frame 201, and the end of the mounting frame 201 near the transmission shaft 304 is rotatably connected to the second bevel gear 306. The second bevel gear 306 extends to the interior of the mounting frame 201 through the connecting shaft 307 and is fixedly connected to the screw rod. The first bevel gear 305 and the second bevel gear 306 are meshed for transmission.

[0069] Through the transmission unit 3 with the above-mentioned structural design, when the rotating shaft 121 and the rotating seat 128 are engaged, the driving source 13 can transmit the torque to the mounting disk 301, and the mounting disk 301 drives the arc-shaped rack 302 to rotate. The arc-shaped rack 302 alternately meshes with the two transmission gears 303 during the rotation, thereby driving the transmission shaft 304 to rotate back and forth. The transmission shaft 304 transmits power to the screw through the first bevel gear 305 and the second bevel gear 306, thereby driving the screw to rotate back and forth. The reciprocating rotation of the screw can drive the nut seat and the wire mechanism to move back and forth horizontally along the mounting frame 201, so that the wire mechanism can pull the winding wire horizontally back and forth during the winding process of the winding unit 1, so that it is evenly wound on the coil drum 4 along the axial direction of the coil drum 4, with high winding efficiency and good quality.

[0070] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A coil winding device for winding a winding wire onto a coil barrel (4), characterized in that: The coil winding device comprises: A winding unit (1) comprises a support frame (11), a fastening mechanism (12) and a driving source (13) arranged on the support frame (11), wherein the fastening mechanism (12) is used to fix a coil drum (4) in a first horizontal direction, and the driving source (13) is used to drive the fastening mechanism (12) to rotate, thereby driving the coil drum (4) fixed to the fastening mechanism (12) to rotate; A wire unit (2), comprising a moving member (203), a driving member (202) and a wire mechanism, wherein the driving member (202) is used to drive the moving member (203) to move in a direction parallel to the first horizontal direction, and the wire mechanism is arranged on the moving member (203), and is used to guide the winding wire so that the winding wire passes through the wire mechanism; A transmission unit (3) comprises an arc-shaped rack (302), a transmission shaft (304) and two transmission gears (303); the arc-shaped rack (302) is transmission-connected to the driving source (13) so that the arc-shaped rack (302) rotates around its center under the drive of the driving source (13); the transmission shaft (304) is rotatably arranged on the opposite side of the tooth surface of the arc-shaped rack (302) and is transmission-connected to the driving member (202); the two transmission gears (303) are respectively arranged at two ends of the transmission shaft (304) and are both located on the rotation path of the arc-shaped rack (302), so that the arc-shaped rack (302) can alternately mesh with the two transmission gears (303) during the rotation process.

2. The coil winding device according to claim 1, characterized in that: The support frame (11) comprises a fixed frame (111) fixed to a positioning base plate (5) and a movable frame (112) movably arranged on the positioning base plate (5); a rotating seat (128) is rotatably mounted on the fixed frame (111); the fastening mechanism (12) is arranged on the movable frame (112); a docking structure is arranged between the fastening mechanism (12) and the rotating seat (128); and the movable frame (112) is driven to move so that the fastening mechanism (12) and the rotating seat (128) can be engaged or separated through the docking structure.

3. The coil winding device according to claim 2, characterized in that: The docking structure comprises a plug connector (127) and a plug sleeve (129); a plug hole matching the plug connector (127) is provided in the plug sleeve (129); and the plug connector (127) and the plug sleeve (129) are circumferentially limited; The plug connector (127) is arranged on the fastening mechanism (12), and the plug sleeve (129) is arranged on the rotating seat (128); or, the plug sleeve (129) is arranged on the fastening mechanism (12), and the plug connector (127) is arranged on the rotating seat (128).

4. The coil winding device according to claim 2, characterized in that: The fastening mechanism (12) comprises: A rotating shaft (121), the rotating shaft (121) is rotatably mounted on the support frame (11) and is drivingly connected to the driving source (13), and the docking structure is arranged between the rotating shaft (121) and the rotating seat (128); A variable diameter support assembly comprises a movable sleeve (125), a locking member and a plurality of support members, wherein the movable sleeve (125) is movably arranged at one end of the rotating shaft (121), the locking member is used to lock the movable sleeve (125), and the support members are distributed along the circumference of the rotating shaft (121), and each of the support members comprises a first transmission bar (122) hinged to the movable sleeve (125), a second transmission bar (123) hinged to one end of the rotating shaft (121) away from the movable sleeve (125), and a support bar (124) hinged between the first transmission bar (122) and the second transmission bar (123).

5. The coil winding device according to claim 4, characterized in that: The locking member comprises a locking screw sleeve (126), a thread groove (1210) is provided on the rotating shaft (121), the locking screw sleeve (126) is threadedly connected to the thread groove (1210), and the locking screw sleeve (126) is rotationally connected to the movable sleeve (125).

6. The coil winding device according to claim 4, characterized in that: One end of the rotating shaft (121) away from the movable frame (112) is fixedly connected to a limited end plate (1211); and / or A connecting sleeve (1212) is also fixedly connected to the rotating shaft (121). The connecting sleeve (1212) is located on a side of the rotating shaft (121) away from the movable frame (112). The outer diameter of the connecting sleeve (1212) is equal to the outer diameter of the movable sleeve (125). The second transmission bar (123) is hinged to the connecting sleeve (1212).

7. The coil winding device according to claim 4, characterized in that: A mounting plate (301) is fixedly connected to a side of the rotating seat (128) away from the fixing frame (111), and the arc-shaped rack (302) is arranged on the mounting plate (301); The positioning base plate (5) is fixedly connected to a support column (308), and the support column (308) is located on a side of the fixed frame (111) away from the movable frame (112). A connecting frame (309) is fixed to the upper end of the support column (308), and the transmission shaft (304) is rotatably connected to the connecting frame (309) in a direction perpendicular to the rotating shaft (121).

8. The coil winding device according to claim 1, characterized in that: The arc where the arc-shaped rack (302) is located is a half arc.

9. The coil winding device according to claim 1, characterized in that: The driving member (202) comprises a screw rod rotatably arranged on a mounting frame (201); the moving member (203) comprises a nut seat threadably connected to the screw rod; the nut seat is slidably mounted on the mounting frame (201); the screw rod and the transmission shaft (304) are connected via a pair of meshing bevel gears.

10. The coil winding device according to claim 1, characterized in that: The wire guide mechanism comprises a mounting block (204) fixedly mounted on the moving member (203), a wire threading groove being arranged on the mounting block (204), a guide wheel (205) being arranged on the mounting block (204), and the guide wheel (205) being located at the lower side of the wire threading groove.

Images