CN112299137A - Tension adjusting unit and automatic winding equipment - Google Patents
Tension adjusting unit and automatic winding equipment Download PDFInfo
- Publication number
- CN112299137A CN112299137A CN201910694493.6A CN201910694493A CN112299137A CN 112299137 A CN112299137 A CN 112299137A CN 201910694493 A CN201910694493 A CN 201910694493A CN 112299137 A CN112299137 A CN 112299137A
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- guide
- wire
- stopper
- tension
- unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
- B65H59/12—Stationary elements arranged to deflect material from straight path
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/08—Forming windings by laying conductors into or around core parts
- H02K15/095—Forming windings by laying conductors into or around core parts by laying conductors around salient poles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/34—Handled filamentary material electric cords or electric power cables
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
Abstract
A tension adjusting unit and an automatic winding apparatus including the same, which easily and automatically appropriately adjust the tension of a wire. The tension adjusting unit of the present invention includes: first to fourth guides which are provided in order along a wire supply path from the wire supply portion to the wire processing portion within a preset plane and are provided so that wires can be brought into abutment with the first to fourth guides, respectively, so as to pass between the first guide and the second guide, between the second guide and the third guide, and between the third guide and the fourth guide in order; a rotating member that supports the second guide member and the third guide member and is rotatable about a rotation axis perpendicular to the predetermined plane; and a biasing member that is provided in the main body and biases the rotating member in a direction in which the tension of the wire material is increased.
Description
Technical Field
The present invention relates to a tension adjusting unit and an automatic winding apparatus including the same, and more particularly, to a tension adjusting unit that adjusts tension of a wire rod extended from a wire rod supplying portion to a wire rod processing portion and an automatic winding apparatus including the same.
Background
A motor generally includes a stator and a rotor that rotates relative to the stator, wherein the stator generally includes a core having pole teeth and coils wound around the pole teeth.
In manufacturing a motor, in order to wind a coil wire around a pole tooth of a stator core to form a coil, a wire material supply portion around which the coil wire is wound and a winding portion that holds a tip end of the coil wire pulled out from the wire material supply portion and winds the coil wire around the pole tooth of the stator core are generally provided.
However, in practice, the winding portion does not draw the coil wire from the wire material supply portion at a constant speed, and for example, when the winding of the coil wire on the pole teeth of the stator core is just started, the coil wire needs to be drawn out from the wire material supply portion at a high speed, and when the winding of the coil wire on the pole teeth of the stator core is just completed, the coil wire does not need to be drawn out from the wire material supply portion at a high speed.
Therefore, when the winding of the coil wire around the pole teeth of the stator core is started at the time of manufacturing the motor, the coil wire may be pulled too tightly and broken, and when the winding of the coil wire around the pole teeth of the stator core is completed, the coil wire may be too loose and may contact peripheral devices, which may affect the operation of the peripheral devices.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a tension adjusting unit and an automatic winding apparatus including the same, which can easily and automatically appropriately adjust the tension of a wire.
In order to achieve the above object, the present invention provides a tension adjusting unit for adjusting tension of a wire rod extending from a wire rod supplying portion and supplied to a wire rod processing portion, the tension adjusting unit including: first, second, third, and fourth guides that are sequentially disposed along a wire feeding path from a wire feeding portion to a wire processing portion within a preset plane, and are disposed to be capable of being abutted by a wire in such a manner as to sequentially pass between the first guide and the second guide, between the second guide and the third guide, and between the third guide and the fourth guide, respectively; a rotating member that supports the second guide member and the third guide member and is rotatable about a rotation axis perpendicular to the preset plane; and a biasing member that biases the rotor in a direction in which the tension of the wire rod is increased.
The tension adjusting unit according to the present invention includes a first guide, a second guide, a third guide, a fourth guide, a rotating member, and a biasing member, the first guide, the second guide, the third guide, and the fourth guide being provided in this order along a wire supply path from a wire supply portion to a wire processing portion within a predetermined plane, the rotating member supporting the second guide and the third guide and being rotatable about a rotation axis perpendicular to the predetermined plane, the biasing member biasing the rotating member in a direction in which tension of the wire is increased, and therefore, in a state in which the wire is drawn out from the wire supply portion, is brought into contact with each of the first guide, the second guide, the third guide, and the fourth guide so as to pass between the first guide and the second guide, between the second guide and the third guide, and between the third guide and the fourth guide in this order, and is introduced to a processing unit such as a winding unit, if the amount of the wire rod which needs to be supplied to the processing unit per unit time increases and the wire rod tends to be tightened and the tension of the wire rod tends to increase, the rotating member rotates in a direction in which the length of the portion of the wire rod which extends from the first guide to the fourth guide via the second guide and the third guide decreases, that is, the rotating member rotates in a direction in which the tension of the wire rod decreases, and on the other hand, if the amount of the wire rod which needs to be supplied to the processing unit per unit time decreases and the wire rod tends to be loosened and the tension of the wire rod tends to decrease, the rotating member automatically rotates in a direction in which the length of the portion of the wire rod which extends from the first guide to the fourth guide via the second guide and the third guide increases, that is, the rotating member automatically rotates in a direction in which the tension of the wire rod increases, this makes it easy to automatically adjust the tension of the wire rod.
Further, the tension adjusting unit of the present invention preferably includes: a sensor that detects an operation state of the rotating member; and a controller that controls the urging force of the urging member based on a detection result of the sensor.
According to the tension adjusting unit of the present invention, since the tension adjusting unit includes the sensor for detecting the operation condition (for example, position, speed, etc.) of the rotating member and the controller for controlling the urging force of the urging member based on the detection result of the sensor, it is easy to accurately control the tension of the wire rod, and it is possible to prevent the wire rod from being tightened too tightly or loosened too loosely.
In the tension adjusting unit according to the present invention, it is preferable that the urging member is an air cylinder or a hydraulic cylinder.
According to the tension adjusting unit of the present invention, the urging member is a cylinder or a hydraulic cylinder, and therefore, the urging member has a simple structure, which contributes to reduction in manufacturing cost.
In addition, the tension adjusting unit according to the present invention preferably includes a stopper mechanism for limiting a rotation range of the rotor.
According to the tension adjusting unit of the present invention, since the rotation range of the rotating member is limited by the stopper mechanism, it is easy to prevent the portion of the wire rod stretched over the second guide and the third guide from being separated from the second guide and the third guide due to the excessively large rotation range of the rotating member, and thus the tension of the wire rod cannot be adjusted.
In the tension adjusting unit according to the present invention, it is preferable that the tension adjusting unit includes a buffer member that buffers rotation of the rotor.
According to the tension adjusting unit of the present invention, since the tension adjusting unit includes the buffer member for buffering the rotation of the rotor, the impact force when the rotor collides with the stopper mechanism can be easily reduced, and the rotor and the stopper mechanism can be prevented from being damaged.
In the tension adjusting unit according to the present invention, it is preferable that the buffer member is a coil spring.
According to the tension adjusting unit of the present invention, the buffer member is the coil spring, and therefore, the buffer member has a simple structure, which contributes to a reduction in manufacturing cost.
In the tension adjusting unit according to the present invention, it is preferable that the first guide, the second guide, the third guide, and the fourth guide each have a groove into which a wire is fitted.
According to the tension adjusting unit of the present invention, since the first guide, the second guide, the third guide, and the fourth guide each have the groove into which the wire is inserted, the movement of the wire stretched over the first guide, the second guide, the third guide, and the fourth guide can be properly restricted by the groove, the wire can be prevented from coming off, and the function of the tension adjusting unit can be stably exerted.
Further, the tension adjusting unit of the present invention preferably includes: a first stopper facing an opening of the groove of the first guide to surround the wire together with the groove of the first guide; a second stopper facing the opening of the groove of the second guide to surround the wire together with the groove of the second guide; a third stopper opposed to an opening of the groove of the third guide to surround the wire together with the groove of the third guide; and a fourth stopper facing the opening of the groove of the fourth guide to surround the wire rod together with the groove of the fourth guide.
According to the tension adjusting unit of the present invention, since the first stopper, the second stopper, the third stopper, and the fourth stopper are provided to be opposed to the openings of the grooves of the first, second, third, and fourth guides, respectively, the wire can be prevented from coming out of the grooves of the first, second, third, and fourth guides by the first stopper, the second stopper, the third stopper, and the fourth stopper, thereby more stably performing the function of the tension adjusting unit.
Further, in the tension adjusting unit according to the present invention, it is preferable that the tension adjusting unit includes an arm portion extending in a horizontal direction and provided with a first stopper portion and a second stopper portion constituting a stopper mechanism, the first stopper portion restricting a limit position when the rotor rotates in a first direction about a rotation axis extending in the horizontal direction, the second stopper portion restricting a limit position when the rotor rotates in a second direction opposite to the first direction about the rotation axis, the rotor being rotatably supported by the arm portion and having a first connecting portion, a second connecting portion, and a third connecting portion provided in this order at an interval around the rotation axis, the second guide being connected to the first connecting portion, the third guide being connected to the third connecting portion, the urging member being a cylinder or a hydraulic cylinder, one end of the urging member being rotatably connected to the arm portion, the other end of the force application component can be rotatably connected with the second connecting part of the rotating part, the first guide part, the second guide part, the third guide part and the fourth guide part are respectively wheel-shaped components, the outer peripheral surfaces of the wheel-shaped components are provided with grooves for the wire to be clamped in, the axes of the grooves are parallel to the rotating axis of the rotating part, when the rotating part is located at the initial position where the tension of the wire is a preset value, the first guide part, the second guide part, the third guide part and the fourth guide part are sequentially arranged in the horizontal direction, and the tension adjusting unit further comprises: a buffer member that is a spring, one end of which is connected to the arm portion, and the other end of which is connected to the vicinity of the second connection portion of the rotating member; a sensor that is provided on the arm portion and detects a position of the rotor; and a controller that controls the urging force of the urging member based on a detection result of the sensor.
Further, in order to achieve the above object, the present invention provides an automatic winding apparatus, comprising: a winding unit serving as a wire processing unit for winding a wire around a processing object; a supply unit serving as a wire supply section for supplying a wire to the winding unit; and the tension adjusting unit.
(effect of the invention)
According to the present invention, since the wire winding device includes the first guide, the second guide, the third guide, the fourth guide, the rotating member, and the urging member, the first guide, the second guide, the third guide, and the fourth guide are provided in this order along the wire feeding path from the wire feeding portion to the wire processing portion in the predetermined plane, the rotating member supports the second guide and the third guide and is rotatable about the rotational axis perpendicular to the predetermined plane, and the urging member urges the rotating member in the direction in which the tension of the wire is increased, in a state where the wire is drawn out from the wire feeding portion and is brought into contact with the first guide, the second guide, the third guide, and the fourth guide respectively and led to the processing unit such as the wire winding unit so as to pass between the first guide and the second guide, between the second guide and the third guide, and between the third guide and the fourth guide in this order, if the amount of the wire rod which needs to be supplied to the processing unit per unit time increases and the wire rod tends to be tightened and the tension of the wire rod tends to increase, the rotating member rotates in a direction in which the length of the portion of the wire rod which extends from the first guide to the fourth guide via the second guide and the third guide decreases, that is, the rotating member rotates in a direction in which the tension of the wire rod decreases, and on the other hand, if the amount of the wire rod which needs to be supplied to the processing unit per unit time decreases and the wire rod tends to be loosened and the tension of the wire rod tends to decrease, the rotating member automatically rotates in a direction in which the length of the portion of the wire rod which extends from the first guide to the fourth guide via the second guide and the third guide increases, that is, the rotating member automatically rotates in a direction in which the tension of the wire rod increases, this makes it easy to automatically adjust the tension of the wire rod.
Drawings
Fig. 1 is a side view schematically showing the overall structure of an automatic winding apparatus including a tension adjusting unit according to an embodiment of the present invention.
Fig. 2 is a perspective view schematically showing a tension adjusting unit and a feeding unit included in the automatic winding apparatus according to the embodiment of the present invention.
(symbol description)
1 automatic winding equipment
10 winding unit
20 supply unit
21 supporting seat
22 wire spool
23 bobbin
24 drive part
25 bar part
30 tension adjusting unit
31 arm part
321 first guide member
322 second guide
323 third guide member
324 fourth guide
33 rotating part
34 force applying component
351 first position limiting component
352 second limiting part
353 third position limiting element
354 fourth position limiting part
361 first limiting part
362 second position-limiting part
37 buffer member
W wire rod
Detailed Description
An automatic winding machine according to an embodiment of the present invention will be described with reference to fig. 1 and 2, in which fig. 1 is a side view schematically showing an overall structure of an automatic winding machine including a tension adjusting unit according to an embodiment of the present invention, and fig. 2 is a perspective view schematically showing the tension adjusting unit and a feeding unit included in the automatic winding machine according to an embodiment of the present invention.
Here, for convenience of explanation, three directions orthogonal to each other are set as an X direction, a Y direction, and a Z direction, one side of the X direction is set as X1, the other side of the X direction is set as X2, one side of the Y direction is set as Y1, the other side of the Y direction is set as Y2, one side of the Z direction is set as Z1, and the other side of the Z direction is set as Z2, and the Z direction corresponds to the actual up-down direction.
(integral structure of automatic winding device)
As shown in fig. 1, the automatic winding apparatus 1 includes: a winding unit 10 that serves as a wire processing unit for winding a wire W (e.g., a coil wire) around a processing target (e.g., a pole tooth of a stator core of a motor); a supply unit 20 serving as a wire supply unit that supplies a wire to the winding unit 10; and a tension adjusting unit 30.
Here, since the winding unit 10 is not the focus of the present application, the structure thereof will not be described in detail.
(Structure of supply Unit)
As shown in fig. 1 and 2, the supply unit 20 includes a support base 21, a spool 22, a bobbin 23, and a driving unit 24, wherein the support base 21 is a rectangular parallelepiped shape having a top surface perpendicular to the Z direction and side surfaces perpendicular to the X direction or the Y direction as a whole, the spool 22 is provided on the Z2 direction side of the support base 21 so that an axis thereof extends in the Z direction, and the wire W is wound on an outer peripheral side, the bobbin 23 is provided on the Z2 direction side of the spool 22 so that it can rotate about the axis thereof extending in the Z direction coaxially with the spool 22, and the wire W drawn from the spool 22 is wound on the outer peripheral side, and the driving unit 24 drives the bobbin 23 to rotate about the axis thereof.
Here, as shown in fig. 1 and 2, the driving unit 24 is a motor provided coaxially with the spool 22 and the bobbin 23, that is, a rotation axis of a rotor of the motor coincides with an axis of the spool 22 and the bobbin 23, the lever 25 is connected to a rotation shaft of the motor in a Z2 direction, and the bobbin 23 is fitted to an end of the lever 25 in a Z2 direction.
(Structure of tension adjusting Unit)
As shown in fig. 1 and 2, the tension adjusting unit 30 adjusts the tension of the wire W that extends from the supply unit 20 (corresponding to the wire supply portion of the present invention) and is supplied to the winding unit 10 (corresponding to the wire processing portion of the present invention); the tension adjusting unit 30 includes: a first guide 321, a second guide 322, a third guide 323, and a fourth guide 324, the first guide 321, the second guide 322, the third guide 323, and the fourth guide 324 being sequentially provided along a wire feeding path from the feeding unit 20 to the winding unit 10 in a predetermined plane (in the illustrated example, a vertical plane), and being provided so as to be capable of abutting against the first guide 321, the second guide 322, the third guide 323, and the fourth guide 324 so that the wire W sequentially passes between the first guide 321 and the second guide 322, between the second guide 322 and the third guide 323, and between the third guide 323 and the fourth guide 324; a rotating member 33, the rotating member 33 supporting the second guide member 322 and the third guide member 323, and being rotatable about a rotation axis perpendicular to the preset plane; and a biasing member 34, the biasing member 34 biasing the rotary piece 33 in a direction to increase the tension of the wire W (in the illustrated example, biasing the rotary piece substantially toward the X2 direction side).
Here, as shown in fig. 1 and 2, the tension adjusting unit 30 includes an arm portion 31, and the arm portion 31 constitutes a main body portion of the tension adjusting unit 30 and extends in the X direction. Specifically, as shown in fig. 2, the arm portion 31 is formed in a rectangular parallelepiped shape having a top surface perpendicular to the Z direction and side surfaces perpendicular to the X direction or the Y direction, and an end portion of the arm portion 31 on the X1 direction side is connected to the support base 21 of the supply unit 20.
Further, as shown in fig. 1 and 2, a first guide 321, a second guide 322, a third guide 323, and a fourth guide 324 are provided to the arm portion 31, respectively. Specifically, as shown in fig. 2, the first guide 321, the second guide 322, the third guide 323, and the fourth guide 324 are wheel-shaped members each having a groove 3211, 3221, 3231, and 3241 (in the illustrated example, the groove is annular, but not limited thereto) in which the wire W is fitted on an outer peripheral surface thereof, and an axis thereof is parallel to the rotation axis of the rotation member 33 (in the illustrated example, the first guide 321, the second guide 322, the third guide 323, and the fourth guide 324 have the same size, but are not limited thereto), wherein the first guide 321 and the fourth guide 324 are directly supported on a side surface of the arm portion 31 on the Y1 direction side, the second guide 322 and the third guide 323 are supported on a side surface of the arm portion 31 on the Y1 direction side via the rotation member 33, and the first guide 321 and the fourth guide 324 may be provided so as to be rotatable with respect to the arm portion 31 or so as to be fixed with respect to the arm portion 31, similarly, the second guide 322 and the third guide 323 may be provided so as to be rotatable with respect to the arm portion 31, or may be provided so as to be fixed with respect to the arm portion 31.
As shown in fig. 1 and 2, the rotary member 33 is rotatably supported by the arm 31, and includes a first connecting portion 331, a second connecting portion 332, and a third connecting portion 333 which are provided in this order at intervals around the axis of rotation thereof, wherein the first connecting portion 331 is connected to the second guide 322, the second connecting portion 332 is connected to the biasing member 34, and the third connecting portion 333 is connected to the third guide 323. Specifically, the rotating member 33 is substantially T-shaped as a whole, and has a first strip portion C and a second strip portion D, the second strip portion D extending substantially perpendicularly to the first strip portion C from a middle of the first strip portion C in the longitudinal direction, a rotation axis of the rotating member 33 (substantially on a line connecting an axis of the first guide 321 and an axis of the fourth guide 324 when viewed in the Y direction) passing through a center of the first strip portion C in the longitudinal direction, a first connecting portion 331 and a third connecting portion 333 being provided at both ends of the first strip portion C in the longitudinal direction, respectively, one end of the second strip portion D in the longitudinal direction being connected to the first strip portion C, and a second connecting portion 332 being provided at the other end of the second strip portion D in the longitudinal direction.
As shown in fig. 1 and 2, the urging member 34 is an air cylinder or a hydraulic cylinder, and has one end rotatably connected to the arm portion 31 and the other end rotatably connected to the rotor 33. Specifically, the urging member 34 includes a cylinder and a cylinder rod extending and contracting with respect to the cylinder, wherein an end portion of the cylinder opposite to a protruding side of the cylinder rod is rotatably connected to a surface of the arm portion 31 on the Z1 direction side, and an end portion of the cylinder rod protruding from the cylinder is rotatably connected to the second connecting portion 332 of the rotor 33.
Further, as shown in fig. 1 and 2, a first stopper 351 and a fourth stopper 354 are further provided on the arm portion 31, and a second stopper 352 and a third stopper 353 are provided on the second guide 322 and the third guide 323, respectively, wherein the first stopper 351 is opposed to an opening of the groove 3211 of the first guide 321 to surround the wire W together with the groove 3211 of the first guide 321, the second stopper 352 is opposed to an opening of the groove 3221 of the second guide 322 to surround the wire W together with the groove 3221 of the second guide 322, the third stopper 353 is opposed to an opening of the groove 3231 of the third guide 323 to surround the wire together with the groove 3231 of the third guide 323, and the fourth stopper 354 is opposed to an opening of the groove 3241 of the fourth guide 324 to surround the wire W together with the groove 3241 of the fourth guide 324. Specifically, the first stopper 351, the second stopper 352, the third stopper 353, and the fourth stopper 354 are each rod-shaped, are provided on the outer peripheral side of the first guide 321, the second guide 322, the third guide 323, and the fourth guide 324, respectively, and extend from the side surface of the arm portion 31 on the Y1 direction side to the Y1 direction side to a position slightly closer to the Y1 direction side than the first guide 321, the second guide 322, the third guide 323, and the fourth guide 324, respectively.
As shown in fig. 1 and 2, the arm portion 31 is further provided with a first stopper portion 361 and a second stopper portion 362 that constitute a stopper mechanism, wherein the first stopper portion 361 regulates a limit position when the rotor 33 rotates about the rotation axis thereof in a first direction (counterclockwise direction in fig. 1 and 2), and the second stopper portion 362 regulates a limit position when the rotor 33 rotates about the rotation axis thereof in a second direction (clockwise direction in fig. 1 and 2) opposite to the first direction. Specifically, the first stopper 361 and the second stopper 362 are each cylindrical and extend from the side surface of the arm 31 on the Y1 direction side toward the Y1 direction side, and the first stopper 361 and the second stopper 362 are spaced apart in the X direction.
As shown in fig. 1 and 2, the tension adjusting unit 30 further includes a buffer member 37, and the buffer member 37 buffers the rotation of the rotor 33. Specifically, the buffer member 37 is a coil spring, and has one end rotatably connected to the surface of the arm portion 31 on the Z1 direction side and the other end rotatably connected to the rotor 33 (specifically, the vicinity of the second connection portion 332 of the second strip portion D).
Further, although not shown, the tension adjusting unit 30 further includes: a sensor that detects an operation state (for example, position information, rotational speed information, or the like) of the rotor 33; and a controller that controls the urging force of the urging member 34 based on the detection result of the sensor. Specifically, for example, an optical sensor having a light emitting portion that emits light in the Y1 direction is provided at a predetermined position in a region of the arm portion 31 that overlaps the movement range of the second strip portion D of the rotor 33 when viewed in the Y direction (in the illustrated example, the arm portion 31 is provided with the optical sensor, and a through hole through which light from the light emitting portion of the optical sensor is emitted is opened in the wall portion of the arm portion 31 on the Y1 direction side), and when the light emitted from the light emitting portion of the optical sensor is blocked by the second strip portion D of the rotor 33, it is detected that the rotor 33 reaches the predetermined position, and the biasing force of the biasing member 34 needs to be increased or decreased so that the tension of the wire rod W is within the predetermined range.
Further, in the present embodiment, for example, when the rotation piece 33 is located at the initial position where the tension of the wire rod W is a preset value, the first guide 321, the second guide 322, the third guide 323, and the fourth guide 324 are sequentially arranged in the X direction.
(action of automatic winding device)
First, a preparation operation is performed in which the wire rod W is wound around the spool 22 of the supply unit 20, the wire rod W wound around the spool 22 is drawn out and wound around the bobbin 23, the wire rod W is drawn out from the bobbin 23 and sequentially passes between the first guide 321 and the second guide 322, between the second guide 322 and the third guide 323, and between the third guide 323 and the fourth guide 324, and finally the wire rod W is connected to the winding unit 10 and is brought into contact with the first guide 321, the second guide 322, the third guide 323, and the fourth guide 324, respectively.
Next, by performing a winding operation and operating (the driving unit 24 of) the winding unit 10 and the supply unit 20, the wire rod W is gradually fed out from the supply unit 20 toward the winding unit 10 side, and the winding unit 10 gradually winds the wire rod W around, for example, pole teeth of a stator core of a motor.
Here, in the winding work, when the amount of the wire rod W required to be supplied to the winding unit 10 per unit time increases, the rotary piece 33 is rotated counterclockwise in fig. 1 to decrease the tension of the wire rod W, and on the other hand, when the amount of the wire rod W required to be supplied to the winding unit 10 per unit time decreases, the rotary piece 33 is rotated clockwise in fig. 1 to increase the tension of the wire rod W.
(main effect of the present embodiment)
According to the automatic winding apparatus 1 of the present embodiment, the tension adjusting unit 30 includes the first guide 321, the second guide 322, the third guide 323, the fourth guide 324, the rotating member 33, and the urging member 34, the first guide 321, the second guide 322, the third guide 323, and the fourth guide 324 are sequentially provided along the wire supplying path from the supplying unit 20 to the winding unit 10 in a predetermined plane, the rotating member 33 supports the second guide 322 and the third guide 323 and is rotatable about a rotation axis perpendicular to the predetermined plane, and the urging member 34 urges the rotating member 33 in a direction in which the tension of the wire W is increased, and therefore, the wire W is drawn out from the supplying unit 20 to pass through between the first guide 321 and the second guide 322, between the second guide 322 and the third guide 323, and between the third guide 323 and the fourth guide 324 in order from the first guide 321 to the second guide 323 to the third guide 323 to the fourth guide 324, In the state where the second guide 322, the third guide 323, and the fourth guide 324 are respectively brought into contact with and led to the winding unit 10, as shown in fig. 1, if the amount of the wire rod W that needs to be supplied to the winding unit 10 per unit time increases and the wire rod W tends to be tightened and the tension F of the wire rod W tends to increase, the rotating member 33 rotates in a direction in which the length of the portion of the wire rod W that extends from the first guide 321 to the fourth guide 324 via the second guide 322 and the third guide 323 decreases, that is, the rotating member 33 rotates in a direction in which the tension of the wire rod W decreases (counterclockwise in fig. 1) due to the tension F of the wire rod W, and on the other hand, if the amount of the wire rod W that needs to be supplied to the winding unit 10 per unit time decreases and the wire rod W tends to be loosened and the tension F of the wire rod W tends to decrease, the rotating member 33 automatically rotates in a direction in which the tension F of the wire rod W from the first guide 321 to the second guide via the 322. The portion of the third guide 323 extending to the fourth guide 324 is rotated in a direction in which the length thereof increases, that is, the rotating member 33 is automatically rotated in a direction in which the tension of the wire rod W increases (clockwise in fig. 1), thereby facilitating automatic adjustment of the tension of the wire rod W.
The present invention is described above by way of example with reference to the accompanying drawings, and it is to be understood that the specific implementations of the present invention are not limited to the above-described embodiments.
For example, in the above-described embodiment, the winding unit 10 is described as an example of the wire processing section, but the wire processing section is not limited to this, and the wire processing section may be a section that performs processing other than winding on the wire.
In the above embodiment, the supply unit 20 and the tension adjusting unit 30 are integrally formed, but the supply unit 20 and the tension adjusting unit 30 may be formed separately.
In the above embodiment, the first guide 321, the second guide 322, the third guide 323, and the fourth guide 324 are each a wheel-shaped member having the outer peripheral surface formed with the grooves 3211, 3221, 3231, and 3241 into which the wire W is inserted, but the present invention is not limited thereto, and the shapes of the first guide 321, the second guide 322, the third guide 323, and the fourth guide 324 may be appropriately changed as necessary, and the outer peripheral surface may not be provided with the grooves.
In the above embodiment, the buffer member 37 is provided, but the present invention is not limited to this, and the buffer member 37 may be omitted in some cases.
It should be understood that the present invention can freely combine the respective components in the embodiments, or appropriately change or omit the respective components in the embodiments within the scope thereof.
Claims (10)
1. A tension adjusting unit for adjusting tension of a wire rod extending from a wire rod supplying part and supplied to a wire rod processing part, the tension adjusting unit comprising:
first, second, third, and fourth guides that are sequentially disposed along a wire feeding path from a wire feeding portion to a wire processing portion within a preset plane, and are disposed to be capable of being abutted by a wire in such a manner as to sequentially pass between the first guide and the second guide, between the second guide and the third guide, and between the third guide and the fourth guide, respectively;
a rotating member that supports the second guide member and the third guide member and is rotatable about a rotation axis perpendicular to the preset plane; and
and a biasing member that biases the rotor in a direction in which the tension of the wire rod is increased.
2. The tensioning unit according to claim 1, comprising:
a sensor that detects an operation state of the rotating member; and
and the controller controls the force application of the force application component according to the detection result of the sensor.
3. The tensioning cell according to claim 1,
the force application component is an air cylinder or a hydraulic cylinder.
4. The tensioning cell according to claim 1,
the limiting mechanism is used for limiting the rotation range of the rotating part.
5. The tensioning cell according to claim 4,
the tension adjusting unit includes a buffer member,
the buffer member alleviates rotation of the rotor.
6. The tensioning cell according to claim 5,
the buffer member is a coil spring.
7. The tensioning cell according to claim 1,
the first guide, the second guide, the third guide, and the fourth guide have grooves into which wires are caught, respectively.
8. The tensioning unit according to claim 7, comprising:
a first stopper facing an opening of the groove of the first guide to surround the wire together with the groove of the first guide;
a second stopper facing the opening of the groove of the second guide to surround the wire together with the groove of the second guide;
a third stopper opposed to an opening of the groove of the third guide to surround the wire together with the groove of the third guide; and
a fourth stopper facing the opening of the groove of the fourth guide to surround the wire together with the groove of the fourth guide.
9. The tensioning unit according to claim 1, comprising:
an arm portion extending in a horizontal direction and provided with a first stopper portion and a second stopper portion that constitute a stopper mechanism, the first stopper portion restricting a limit position when the rotating member rotates in a first direction around a rotation axis extending in the horizontal direction, the second stopper portion restricting a limit position when the rotating member rotates in a second direction opposite to the first direction around the rotation axis,
the rotating member is rotatably supported by the arm portion, and has a first connecting portion, a second connecting portion, and a third connecting portion that are sequentially provided at intervals around a rotation axis, the second guide member is connected to the first connecting portion, the third guide member is connected to the third connecting portion,
the force application member is a cylinder or a hydraulic cylinder, one end of the force application member is rotatably connected to the arm portion, the other end of the force application member is rotatably connected to the second connecting portion of the rotating member,
the first guide, the second guide, the third guide, and the fourth guide are wheel-shaped members in which grooves into which wires are fitted are formed on outer peripheral surfaces thereof and axes thereof are parallel to a rotation axis of the rotating member,
when the rotating member is located at an initial position where the tension of the wire rod is a preset value, the first guide member, the second guide member, the third guide member and the fourth guide member are sequentially arranged in a horizontal direction,
the tension adjusting unit further includes:
a buffer member that is a spring, one end of which is connected to the arm portion, and the other end of which is connected to the vicinity of the second connection portion of the rotating member;
a sensor that is provided on the arm portion and detects a position of the rotor; and
and the controller controls the force application of the force application component according to the detection result of the sensor.
10. An automatic winding apparatus, comprising:
a winding unit serving as a wire processing unit for winding a wire around a processing object;
a supply unit serving as a wire supply section that supplies a wire to the winding unit; and
the tensioning unit of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910694493.6A CN112299137A (en) | 2019-07-30 | 2019-07-30 | Tension adjusting unit and automatic winding equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910694493.6A CN112299137A (en) | 2019-07-30 | 2019-07-30 | Tension adjusting unit and automatic winding equipment |
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| CN112299137A true CN112299137A (en) | 2021-02-02 |
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| CN201910694493.6A Pending CN112299137A (en) | 2019-07-30 | 2019-07-30 | Tension adjusting unit and automatic winding equipment |
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| CN (1) | CN112299137A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI754600B (en) * | 2021-07-08 | 2022-02-01 | 王文亮 | Winding tension control method |
| CN115490085A (en) * | 2022-11-07 | 2022-12-20 | 江苏欣战江纤维科技股份有限公司 | Tensioning thread guide device for spinning of fibers for vehicle |
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Application publication date: 20210202 |