CN217498220U

CN217498220U - Automatic pay-off device

Info

Publication number: CN217498220U
Application number: CN202220432919.8U
Authority: CN
Inventors: 徐兆声; 崔亮亮; 徐涛; 刘辉江; 王明磊
Original assignee: Hefei Aogewei Electronic Technology Co ltd
Current assignee: Hefei Aogewei Electronic Technology Co ltd
Priority date: 2022-03-01
Filing date: 2022-03-01
Publication date: 2022-09-27
Anticipated expiration: 2032-03-01

Abstract

The utility model provides an automatic pay-off device, which comprises an automatic wire cutting machine, a winding shaft, a pay-off mechanism and an induction control mechanism; the winding shaft is arranged on the pay-off mechanism, and the pay-off mechanism is used for driving the winding shaft to pay off; the automatic wire cutting machine is used for drawing the enameled wire from the winding shaft to apply traction force and cutting the enameled wire; the induction control mechanism is arranged between the winding shaft and the automatic wire cutting machine, the enameled wire passes through the induction control mechanism, and the induction control mechanism is used for inducing the stretching condition of the enameled wire between the winding shaft and the automatic wire cutting machine and controlling the paying-off mechanism to start and stop. The utility model discloses an automatic pay-off utilizes automatic wire cutting machine wire cutting, utilizes the paying off mechanism unwrapping wire, through the response control mechanism's that is close response control paying off mechanism unwrapping wire, when the wire cutting in-process produced the resistance, control paying off mechanism unwrapping wire at once can guarantee that the wire cutting smoothly reaches the uniformity of enameled wire length, can reduce the probability that the length of the line appears, can promote enameled wire cut-off qualification rate and production efficiency.

Description

Automatic pay-off device

Technical Field

The utility model belongs to the technical field of the unwrapping wire equipment, concretely relates to automatic pay-off.

Background

When the existing enameled wire is used for cutting, a winding shaft of the enameled wire is vertically placed on the ground, a wire end penetrates into an automatic wire cutting machine, and the enameled wire is drawn out of the winding shaft by applying a traction force through the automatic wire cutting machine; because the wire direction is walked to wire wheel of automatic wire cutting machine is perpendicular with the direction of placing of spool, can produce certain resistance at the wire cutting in-process, the phenomenon of length line appears often, and the enameled wire is easy to take place to buckle in automatic wire cutting machine's threading mouth department moreover, leads to unable normal line that send, influences wire cutting efficiency.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model provides an automatic pay-off, this automatic pay-off utilize automatic wire cutting machine to cut wire, utilize paying out machine to construct the unwrapping wire, through induction control mechanism's the induction control paying out machine mechanism unwrapping wire that is close, when the wire cutting in-process produces the resistance, control paying out machine mechanism unwrapping wire avoids the enameled wire to buckle in the threading mouth department of automatic wire cutting machine, guarantees that the wire cut is smooth and easy and the uniformity of enameled wire length, reduces the probability that the length line appears, promotes enameled wire cut-off qualification rate and production efficiency.

The utility model discloses a following technical scheme realizes:

an automatic pay-off device comprises an automatic wire cutting machine; the winding device also comprises a winding shaft, a pay-off mechanism and an induction control mechanism; the enameled wire to be cut is wound on the winding shaft, the winding shaft is mounted on the pay-off mechanism, and the pay-off mechanism is used for driving the winding shaft to pay off; the enameled wire to be cut is pulled to an automatic wire cutting machine, and the automatic wire cutting machine is used for pulling the enameled wire from a winding shaft to apply traction force and cutting the enameled wire; induction control mechanism sets up between spool and automatic wire cutting machine, the enameled wire passes induction control mechanism, induction control mechanism is used for responding to the tensile condition of enameled wire between spool and the automatic wire cutting machine and controls paying out machine and construct and open and stop, at the wire cutting in-process, induction control mechanism senses when the enameled wire between spool and the automatic wire cutting machine is in tensile state, induction control mechanism controls paying out machine and constructs and start, paying out machine drive spool unwrapping wire, induction control mechanism senses when the enameled wire between spool and the automatic wire cutting machine is in no tensile state, induction control mechanism controls paying out machine and constructs the stop motion.

Further limiting, the induction control mechanism comprises a main body bracket, a paying-off control movable rod, a proximity switch and an induction sheet; the upper end of the paying-off control movable rod is rotatably connected with the main body bracket, the lower end of the paying-off control movable rod is provided with a threading ring, and an enameled wire between the winding shaft and the automatic wire cutting machine penetrates through the threading ring; the proximity switch is arranged on the main body bracket and is electrically connected with the pay-off mechanism, and the induction sheet is arranged on the pay-off control movable rod; in the wire cutting process, when the enameled wire fed out between the winding shaft and the automatic wire cutting machine has allowance, the enameled wire passing through the threading ring on the paying-off control movable rod is in a non-stretching state, the paying-off control movable rod naturally droops and is lapped on the main body bracket without being lifted, the induction sheet on the paying-off control movable rod shields the proximity switch, and the paying-off mechanism is stopped; automatic wire cutting machine continuously pulls the enameled wire, the enameled wire is by tensile gradually, when the enameled wire of emitting between spool and the automatic wire cutting machine does not have the surplus, tensile enameled wire lifts the lower extreme of unwrapping wire control movable rod, unwrapping wire control movable rod rotates on main body support, the response piece on the unwrapping wire control movable rod rotates, proximity switch is kept away from to the response piece, paying out machine starts and controls the spool unwrapping wire, there is the surplus until the enameled wire of emitting, unwrapping wire control movable rod whereabouts, the response piece shelters from proximity switch, paying out machine shuts down.

Further inject, the unwrapping wire control movable rod is the U type, and the opening side both ends of unwrapping wire control movable rod rotate with main body support respectively and are connected, are equipped with the slope support on the main body support, and the unwrapping wire control movable rod leans on the slope support and to automatic wire cutting machine lopsidedness setting, and when tensile enameled wire, the enameled wire can lift the unwrapping wire control movable rod, makes the low side of unwrapping wire control movable rod rotate to automatic wire cutting machine one side on between the main part.

Further inject, the height that highly all is less than the wire wheel of automatic wire cutting machine and spool on the unwrapping wire control movable rod thimble highly, when the enameled wire has the surplus between automatic wire cutting machine and the spool, the enameled wire is flagging naturally, and the unwrapping wire control movable rod is in and flagges naturally and takes on main part support, pulls the enameled wire when automatic wire cutting machine, and the enameled wire is tensile gradually, and the lower extreme of unwrapping wire control movable rod is lifted up to the tensile in-process of enameled wire.

Further limiting, the pay-off mechanism comprises a pay-off rack, a power distribution cabinet and a motor; the winding shaft is detachably arranged on the pay-off rack, the power distribution cabinet and the motor are both arranged on the pay-off rack, and the motor is used for driving the winding shaft to rotate so as to pay off the winding shaft; specifically, the switch board includes converter, relay, 24V power and control switch, gives the motor distribution through the switch board, and proximity switch is connected with the switch board electricity.

Further limiting, a paying-off guide plate is arranged on the paying-off frame, a guide hole is formed in the paying-off guide plate, and an enameled wire coming out of the winding shaft is guided through the guide hole; specifically, the axial height of the guide hole is lower than the height of the top of the winding wall surface of the winding shaft, and when the winding shaft is unwound, the discharged enameled wire can be guided to move downwards through the guide hole.

Further limited, the pay-off mechanism further comprises a spool fixing mechanism; the bobbin fixing mechanism comprises a bobbin fixing tube, a locking sleeve and a movable sleeve rod; the spool locking device comprises a spool, a spool fixing tube, a locking sleeve and a locking sleeve, wherein a shaft hole is formed in the spool, the spool fixing tube is inserted into the spool along the shaft hole, the locking sleeve is sleeved outside the spool fixing tube, a plurality of radial L-shaped clamping plates are arranged on the outer side walls of the spool fixing tube and the locking sleeve, the spool is clamped and fixed on the spool fixing tube from two ends through the L-shaped clamping plates on the spool fixing tube and the L-shaped clamping plates on the locking sleeve, the locking sleeve is fixedly connected with the spool fixing tube through a plurality of jackscrew rods, axial movement between the locking sleeve and the spool fixing tube is avoided, and clamping of the spool is ensured; the one end of activity loop bar penetrates the one end of the fixed pipe of spool, the other end of activity loop bar all is equipped with the bearing with the other end of the fixed pipe of spool, the fixed pipe of spool is equallyd divide with the activity loop bar and does not rotate through bearing and pay off rack and be connected, concretely, be equipped with the fixed slot that is used for installing the bearing on the pay off rack, the bearing is installed in the fixed slot, the fixed pipe of spool and activity loop bar all can rotate around the bearing, rotate on the pay off rack promptly, be equipped with the bearing guard shield on the pay off rack, when the bearing is installed in the fixed slot, the bearing guard shield covers on the bearing, ensure to stabilize.

Further inject, be connected through chain drive between the other end of the fixed pipe of spool and the pivot of motor, specifically, the other end of the fixed pipe of spool is equipped with drive gear, the installation is equipped with the transmission shaft on the pay off rack, rotate through setting up the bearing between transmission shaft and the pay off rack and be connected, the both ends of transmission shaft are equipped with drive gear and drive sprocket respectively, be equipped with drive sprocket in the pivot of motor, be connected through chain drive between drive sprocket and the drive sprocket on the transmission shaft on the motor shaft, drive gear meshes with the fixed pipe of spool on the transmission shaft, it rotates on the pay off rack to drive the fixed pipe of spool through the motor, the fixed pipe of spool drives the synchronous rotation of spool, with this realization unwrapping wire.

According to the above technical scheme, the utility model provides a pair of automatic pay-off, beneficial effect lies in: this automatic pay-off utilizes automatic wire cutting machine to cut wire, utilizes paying off machine to pay off, through the response control mechanism's that is close response control paying off machine mechanism unwrapping wire, when the wire cutting in-process produced the resistance, control paying off machine mechanism unwrapping wire at once, avoids the enameled wire to take place to buckle in automatic wire cutting machine's threading mouth department, can guarantee the smooth and easy and enameled wire length's of cutting wire uniformity, can reduce the probability that appears the length line, can promote enameled wire cutting qualification rate and production efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the sensing control mechanism of the present invention.

Fig. 3 is a schematic structural diagram of the middle wire releasing mechanism of the present invention.

Fig. 4 is a schematic structural view of the middle bobbin of the present invention.

Fig. 5 is a schematic view of the mounting structure of the middle bobbin of the present invention.

In the drawings: 1-an automatic wire cutting machine, 2-a winding shaft, 3-a paying-off mechanism, 31-a paying-off rack, 32-a power distribution cabinet, 33-a motor, 34-a paying-off guide plate, 35-a bobbin fixing tube, 36-a locking sleeve, 37-a movable sleeve rod, 38-an L-type clamping plate, 39-a jackscrew rod, 40-a bearing, 4-an induction control mechanism, 41-a main body support, 42-a paying-off control movable rod, 43-a proximity switch, 44-an induction sheet, 45-a threading ring, 46-an inclined support, 5-an enameled wire, 6-a chain, 7-a transmission gear and 8-a transmission chain wheel.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

In the description of the present application, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 5, an automatic pay-off device includes an automatic wire cutting machine 1, a winding shaft 2, a pay-off mechanism 3 and an induction control mechanism 4;

the enameled wire 5 to be cut is wound on the winding shaft 2, the winding shaft 2 is mounted on the pay-off mechanism 3, and the pay-off mechanism 3 is used for driving the winding shaft 2 to pay off; the pay-off mechanism 3 comprises a pay-off rack 31, a power distribution cabinet 32 and a motor 33; the winding shaft 2 is detachably mounted on the pay-off rack 31, the power distribution cabinet 32 and the motor 33 are both mounted on the pay-off rack 31, and the motor 33 is used for driving the winding shaft 2 to rotate so as to pay off the winding shaft 2; specifically, the power distribution cabinet 32 includes a frequency converter, a relay, a 24V power supply, and a control switch; the method comprises the following steps that an enameled wire 5 to be cut is pulled to an automatic wire cutting machine 1, and the automatic wire cutting machine 1 is used for pulling the enameled wire 5 from a winding shaft 2 to apply traction force and cutting the enameled wire 5;

the induction control mechanism 4 is arranged between the winding shaft 2 and the automatic wire cutting machine 1, the enameled wire 5 penetrates through the induction control mechanism 4, and the induction control mechanism 4 is used for inducing the stretching condition of the enameled wire 5 between the winding shaft 2 and the automatic wire cutting machine 1 and controlling the start and stop of the wire releasing mechanism 3; the induction control mechanism 4 comprises a main body bracket 41, a wire releasing control movable rod 42, a proximity switch 43 and an induction sheet 44; the upper end of the paying-off control movable rod 42 is rotatably connected with the main body bracket 41, the lower end of the paying-off control movable rod is provided with a threading ring 45, and an enameled wire 5 between the winding shaft 2 and the automatic wire cutting machine 1 passes through the threading ring 45; the proximity switch 43 is arranged on the main body bracket 41 and is electrically connected with the pay-off mechanism 3, and the sensing piece 44 is arranged on the pay-off control movable rod 42; the motor 33 is distributed through the power distribution cabinet 32, and the proximity switch 43 is electrically connected with the power distribution cabinet 32; in the wire cutting process, when the enameled wire 5 fed out between the winding shaft 2 and the automatic wire cutting machine 1 has a margin, the enameled wire 5 passing through the threading ring 45 on the wire feeding control movable rod 42 is in a non-stretching state, the wire feeding control movable rod 42 is in a natural sagging state and is lapped on the main body bracket 41 without being lifted up, the proximity switch 43 is shielded by the sensing sheet 44 on the wire feeding control movable rod 42, and the wire feeding mechanism 3 is stopped; automatic wire cutting machine 1 continuously pulls enameled wire 5, enameled wire 5 is stretched gradually, when the enameled wire 5 of emitting between spool 2 and automatic wire cutting machine 1 does not have the surplus, tensile enameled wire 5 lifts up the lower extreme of unwrapping wire control movable rod 42, unwrapping wire control movable rod 42 rotates on main part support 41, response piece 44 on the unwrapping wire control movable rod 42 rotates, proximity switch 43 is kept away from to response piece 44, paying out machine 3 starts and controls 2 unwrapping wires of spool, there is the surplus until the enameled wire 5 of emitting, unwrapping wire control movable rod 42 whereabouts, response piece 44 shelters from proximity switch 43, paying out machine 3 stops.

In this embodiment, the paying-off control movable rod 42 is U-shaped, the two ends of the opening side of the paying-off control movable rod 42 are respectively connected with the main bracket 41 in a rotating manner, the main bracket 41 is provided with an inclined bracket 46, the paying-off control movable rod 42 leans against the inclined bracket 46 and is arranged in an inclined manner on one side of the automatic wire cutting machine 1, when the enameled wire 5 is stretched, the enameled wire 5 can lift the paying-off control movable rod 42, and the low end of the paying-off control movable rod 42 rotates on one side of the automatic wire cutting machine 1 between the main bodies.

In this embodiment, the height of thimble 45 all is less than the wire wheel of automatic wire cutting machine 1 and the height of spool 2 on the unwrapping wire control movable rod 42, and when enameled wire 5 had the surplus between automatic wire cutting machine 1 and the spool 2, enameled wire 5 droops naturally, and unwrapping wire control movable rod 42 is in drooping naturally and takes on main part support 41, draws enameled wire 5 when automatic wire cutting machine 1, and enameled wire 5 is tensile gradually, and the lower extreme of unwrapping wire control movable rod 42 is lifted up in 5 tensile processes of enameled wire.

In this embodiment, the pay-off rack 31 is provided with a pay-off guide plate 34, the pay-off guide plate 34 is provided with a guide hole, and the enameled wire 5 coming out from the winding shaft 2 is guided by the guide hole; specifically, the axial height of the guide hole is lower than the height of the top of the winding wall surface of the bobbin 2, and the paid-out enamel wire 5 can be guided to move downward through the guide hole when the bobbin 2 is paid out.

In this embodiment, the paying-off mechanism 3 further includes a bobbin fixing mechanism; the bobbin fixing mechanism comprises a bobbin fixing tube 35, a locking sleeve 36 and a movable sleeve rod 37; the bobbin fixing device comprises a bobbin 2, a bobbin fixing tube 35, a locking sleeve 36, a plurality of radial L-shaped clamping plates 38, a plurality of jack screws 39 and a plurality of locking screws 36, wherein the bobbin fixing tube 35 is internally provided with a shaft hole, the bobbin fixing tube 35 is inserted into the bobbin 2 along the shaft hole, the locking sleeve 36 is sleeved outside the bobbin fixing tube 35, the outer side walls of the bobbin fixing tube 35 and the locking sleeve 36 are respectively provided with the plurality of radial L-shaped clamping plates 38, the bobbin 2 is clamped and fixed on the bobbin fixing tube 35 from two ends through the L-shaped clamping plates 38 on the bobbin fixing tube 35 and the L-shaped clamping plates 38 on the locking sleeve 36, the locking sleeve 36 is fixedly connected with the bobbin fixing tube 35 through the plurality of jack screws 39, axial movement between the locking sleeve 36 and the bobbin fixing tube 35 is avoided, and the bobbin 2 can be clamped; the one end of the fixed pipe 35 of spool is penetrated to the one end of activity loop bar 37, the other end of the fixed pipe 35 of activity loop bar 37 and the other end of the fixed pipe 35 of spool all are equipped with bearing 40, the fixed pipe 35 of spool and activity loop bar 37 are equallyd divide and are do not rotated through bearing 40 and pay off rack 31 and be connected, concretely, be equipped with the fixed slot that is used for installing bearing 40 on the pay off rack 31, bearing 40 installs in the fixed slot, the fixed pipe 35 of spool and activity loop bar 37 all can rotate around bearing 40, rotate on pay off rack 31 promptly, be equipped with the bearing 40 guard shield on the pay off rack 31, when bearing 40 installs in the fixed slot, the bearing 40 guard shield covers on bearing 40, ensure firm.

In this embodiment, be connected through 6 transmissions of chain between the other end of the fixed pipe 35 of spool and motor 33's the pivot, specifically, the other end of the fixed pipe 35 of spool is equipped with drive gear 7, the installation is equipped with the transmission shaft on the pay off rack 31, rotate through setting up bearing 40 between transmission shaft and the pay off rack 31 and be connected, the both ends of transmission shaft are equipped with drive gear 7 and drive sprocket 8 respectively, be equipped with drive sprocket 8 in motor 33's the pivot, it is connected through 6 transmissions of chain between drive sprocket 8 and the drive sprocket 8 on the transmission shaft in the motor 33 pivot, drive gear 7 meshes with drive gear 7 on the fixed pipe 35 of spool on the transmission shaft, it rotates on pay off rack 31 to drive the fixed pipe 35 of spool through motor 33, the fixed pipe 35 of spool drives 2 synchronous rotations, realize the unwrapping wire with this.

The working principle of the embodiment is as follows: when the automatic pay-off device is used, a winding shaft 2 is installed on a pay-off mechanism 3, specifically, the winding shaft 2 with a bobbin fixing tube 35, a locking sleeve 36 and a movable loop bar 37 installed is placed on a pay-off rack 31, bearings 40 on the bobbin fixing tube 35 and the movable loop bar 37 fall into a fixing groove and are installed in a bearing 40 shield for fixing, and a transmission gear 7 is required to be in butt joint in place during installation; after the winding shaft 2 is assembled, leading out the wire end of the enameled wire 5 from the guide hole, penetrating through the threading ring 45 on the paying-off control movable rod 42, and then penetrating the wire end into a guide wheel of the automatic wire cutting machine 1 and fixing the wire end in place; starting an equipment power supply, presetting a wire cutting length on the automatic wire cutting machine 1 and starting wire cutting, when the enameled wire 5 between the winding shaft 2 and the automatic wire cutting machine 1 is stretched and lifted, the enameled wire 5 drives the paying-off control movable rod 42 to be lifted, the induction sheet 44 on the movable rod is separated from the induction position of the proximity switch 43 (the proximity switch 43 is not shielded), the power distribution cabinet 32 receives signals and controls the motor 33 to operate, the motor 33 drives the winding shaft 2 to rotate and carry out automatic paying-off, when enough allowance of paying-off (the enameled wire 5 between the winding shaft 2 and the automatic wire cutting machine 1 is not stretched and lifted), the paying-off control movable rod 42 falls (in a static state), the induction sheet 44 shields the proximity switch 43, the motor 33 is controlled to stop operating, and automatic paying-off is stopped; in the wire cutting process, when the enameled wire 5 between the winding shaft 2 and the automatic wire cutting machine 1 is stretched, the motor 33 operates and automatically performs wire releasing, when the enameled wire 5 is not stretched, the motor 33 stops operating and stops releasing, and the steps are repeated; the paying-off action adopts induction start-stop to achieve the purpose of automatic paying-off, and the automatic wire cutting machine 1 is prevented from drawing the enameled wire 5 to generate tension in the wire cutting process, so that the wire cutting lengths are consistent. This automatic pay-off utilizes 1 wire cut of automatic wire cutting machine, utilizes the 3 unwrapping wires of paying out wire mechanism, through the 3 unwrapping wires of the induction control pay out wire mechanism of being close of induction control mechanism 4, when the wire cut process produced the resistance, 3 unwrapping wires of control pay out wire mechanism at once, avoid enameled wire 5 to take place to buckle in the threading mouth department of automatic wire cutting machine 1, can guarantee that the wire cut is smooth and easy and the uniformity of enameled wire 5 length, can reduce the probability that the length line appears, can promote 5 wire cut of enameled wire qualification rate and production efficiency.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides an automatic pay-off, includes automatic wire cutting machine, its characterized in that: the winding device also comprises a winding shaft, a pay-off mechanism and an induction control mechanism; the winding shaft is arranged on the paying-off mechanism, and the paying-off mechanism is used for driving the winding shaft to pay off; the automatic wire cutting machine is used for drawing the enameled wire from the winding shaft to apply traction force and cutting the enameled wire; the induction control mechanism is arranged between the winding shaft and the automatic wire cutting machine, the enameled wire passes through the induction control mechanism, and the induction control mechanism is used for inducing the stretching condition of the enameled wire between the winding shaft and the automatic wire cutting machine and controlling the paying-off mechanism to start and stop.

2. The automatic pay-off device as claimed in claim 1, wherein: the induction control mechanism comprises a main body bracket, a paying-off control movable rod, a proximity switch and an induction sheet; the upper end of the paying-off control movable rod is rotatably connected with the main body bracket, the lower end of the paying-off control movable rod is provided with a threading ring, and an enameled wire between the winding shaft and the automatic wire cutting machine penetrates through the threading ring; the proximity switch is arranged on the main body bracket and is electrically connected with the pay-off mechanism, and the induction sheet is arranged on the pay-off control movable rod.

3. The automatic pay-off device as claimed in claim 2, wherein: the pay-off control movable rod is U-shaped, the two ends of the opening side of the pay-off control movable rod are respectively connected with the main body support in a rotating mode, the main body support is provided with an inclined support, and the pay-off control movable rod leans against the inclined support and is arranged in an inclined mode on one side of the automatic wire cutting machine.

4. The automatic pay-off device according to claim 2 or 3, characterized in that: the height of the threading rings on the paying-off control movable rod is lower than the height of a wire guide wheel and the height of a winding shaft of the automatic wire cutting machine.

5. The automatic pay-off device according to claim 1 or 2, wherein: the pay-off mechanism comprises a pay-off rack, a power distribution cabinet and a motor; the winding shaft can be installed on the pay-off rack in a detachable mode, the power distribution cabinet and the motor are installed on the pay-off rack, and the motor is used for driving the winding shaft to rotate.

6. The automatic pay-off device as claimed in claim 5, wherein: and a paying-off guide plate is arranged on the paying-off rack, a guide hole is formed in the paying-off guide plate, and the enameled wire coming out of the winding shaft is guided through the guide hole.

7. The automatic pay-off device according to claim 5, wherein: the pay-off mechanism also comprises a spool fixing mechanism; the bobbin fixing mechanism comprises a bobbin fixing tube, a locking sleeve and a movable sleeve rod; the spool locking device comprises a spool, a spool fixing pipe, a locking sleeve pipe and a spool fixing pipe, wherein a shaft hole is formed in the spool, the spool fixing pipe is inserted into the spool along the shaft hole, the locking sleeve pipe is sleeved outside the spool fixing pipe, a plurality of radial L-shaped clamping plates are arranged on the outer side walls of the spool fixing pipe and the locking sleeve pipe, the spool is clamped and fixed on the spool fixing pipe through the L-shaped clamping plates on the spool fixing pipe and the L-shaped clamping plates on the locking sleeve pipe from two ends, and the locking sleeve pipe is fixedly connected with the spool fixing pipe through a plurality of jackscrew rods; one end of the movable loop bar penetrates into one end of the bobbin fixing tube, bearings are arranged at the other end of the movable loop bar and the other end of the bobbin fixing tube, and the bobbin fixing tube and the movable loop bar are connected with the pay-off rack in a rotating mode through the bearings.

8. The automatic pay-off device of claim 7, wherein: the other end of the bobbin fixing tube is in transmission connection with a rotating shaft of the motor through a chain.