Self-homing fastener tape unwinding and winding machine

Abstract

The present application relates to the technical field of hook-and-loop tape production, and particularly relates to a self-head-seeking hook-and-loop tape separating and winding machine, which comprises a rack, a feeding mechanism, a separating mechanism, a winding mechanism and a discharging mechanism. The air expansion shaft of the feeding mechanism can automatically clamp a hook-and-loop tape roll, then the head-seeking plate of a head-seeking structure cooperates with a reciprocating driving assembly to automatically seek the head and guide out to the separating mechanism for automatic slitting through a first tape passing cavity; the slitting cutter sliding seat linkage equidistant distance changing assembly of the separating mechanism can automatically adjust the slitting width through a distance changing cylinder drive, and after slitting, the product roll is guided out to the winding shaft provided with a second photoelectric sensor on the winding mechanism for automatic winding, and after winding is completed, the discharging mechanism automatically pushes out the finished product roll. The self-head-seeking hook-and-loop tape separating and winding machine can realize the full-process automation of material changing, head seeking, slitting, winding and discharging, and solves the problems of long downtime caused by long manual participation, manual head seeking and frequent material changing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hook and loop fastener production, in particular to a self-head-seeking hook and loop fastener separating and winding machine. BACKGROUND

[0002] The production process of the hook and loop fastener includes: 1. a loom weaves raw nylon yarn into a strip shape; 2. a high-temperature dyeing device dyes the strip into various colors; 3. after the colored raw strip is brushed to raise the pile on the surface of the colored raw strip by a raising machine, the pile is sized; 4. the nylon filaments on the surface of the raw strip are uniformly and properly cut by a hook cutter to form a raw strip with a hook surface; and 5. the raw strip is separated into various width specifications of the hook and loop fastener roll by a separating device.

[0003] The hook and loop fastener separating and winding machine is an important part of the hook and loop fastener production line, and its main function is to separate the raw strip roll loaded thereon into a target raw strip by a separating cutter, and then wind the target raw strip into a target raw strip roll. In the prior art, there are related research and application for the separating and winding device of the magic tape (i.e. the hook and loop fastener), such as the Chinese invention document with the publication number CN202321541168.4, which discloses a magic tape (i.e. the hook and loop fastener) separating and winding machine, which completes the processes of separating, winding, breaking, taping, discharging, etc. by setting a feeding mechanism, a damping mechanism, a separating mechanism, a traction mechanism, a winding mechanism, and a compensation mechanism, etc., realizes the continuous operation of raw strip separating to thin strip winding, and solves the problems of traditional independent separating and winding operation and low efficiency of manual transfer.

[0004] However, the hook and loop fastener separating and winding device still has the problems of excessive manual participation and insufficient automation in the actual production process: the feeding mechanism of the device can realize the conveying of the raw strip through the strip disc shaft and the winding shaft, and the two raw strip rolls are connected by the ultrasonic welding mechanism to reduce the downtime for changing materials, but the operation of finding and pulling out the head of the magic tape roll still needs to be completed manually at the initial winding or when starting to convey each raw strip roll. Since the operator needs to look at, peel off, and pull out each roll one by one when finding the head, the labor intensity of the operator is greatly increased, and if the operation is performed by unskilled personnel, the invalid downtime of the device will be prolonged, and the overall production efficiency will be reduced. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a self-head-seeking hook and loop fastener separating and winding machine to solve the problems of complicated feeding of the traditional separating and winding machine and low automation degree of the prior art, and to realize the purposes of automatic feeding and discharging, reducing manual participation, and improving production continuity.

[0006] To achieve the above-mentioned purposes, the present application provides the following technical solutions:

[0007] The self-seeking tape separating and winding machine comprises a rack, a feeding mechanism, a separating mechanism and a winding mechanism, the feeding mechanism comprises an inflatable shaft for clamping a tape roll and a driving motor mounted on the rack for driving the inflatable shaft to rotate, the driving motor is provided with a motor shaft, and one end of the inflatable shaft is detachably connected with the motor shaft; a seeking structure for finding the roll head from the tape roll and peeling off the roll head is mounted on the rack and distributed between the feeding mechanism and the separating mechanism; and a discharging mechanism for taking off the rewound tape roll is arranged on the winding mechanism.

[0008] By means of the inflatable shaft of the feeding mechanism and the driving motor, the tape roll can be quickly clamped and stably driven, the detachable connection between the inflatable shaft and the driving motor shaft facilitates replacement of inflatable shafts with different diameters to cope with different batches of tape rolls with large differences in inner diameter. The seeking structure can automatically find the roll head and peel off the roll head, reducing the labor intensity of the operator, avoiding the extension of invalid downtime of the equipment caused by unskilled manual operation, ensuring that the equipment can quickly enter continuous operation after starting and changing the roll, and effectively improving the overall production efficiency. The discharging mechanism can automatically separate the finished product from the equipment, further reducing manual intervention after winding is completed, and cooperating with the automatic seeking, a higher degree of automation of the tape separating and winding system is constructed, and the problems of excessive manual participation and easy interruption of continuous production are solved.

[0009] The above technical scheme can be further provided that the seeking structure comprises a seeking shaft fixed on the rack and arranged in parallel with the inflatable shaft, and the seeking structure further comprises a seeking member, the seeking member comprises a hinged sleeve for hinging the seeking member with the seeking shaft, a seeking plate for separating the roll head and fixed at one end with the hinged sleeve, the seeking plate is provided with a first tape passing cavity for guiding the tape, the width of the tape inlet of the first tape passing cavity is greater than that of the tape outlet, and one side of the seeking plate is provided with a reciprocating driving assembly for driving the seeking member to rotate around the seeking shaft.

[0010] By means of the reciprocating driving assembly driving the seeking member to rotate around the seeking shaft, the seeking plate can automatically contact the roll head, the reciprocating driving assembly continuously applies tension to the seeking plate during operation, so that the seeking plate is always in contact with the tape roll. Since the tape is not as sticky as transparent tape and has a very soft material, when the end of the seeking plate is in contact with the roll head of the tape roll, the roll head will be lifted by the end of the seeking plate due to the continuous rotation of the tape roll and the pressure of the seeking plate on the tape roll, and enter the first tape passing cavity, realizing the separation of the roll head and the roll. Since the tape continuously rotates, the seeking plate continuously separates the tape and the roll. This process replaces the heavy labor of manually checking, peeling off and pulling out the roll head.

[0011] The technical scheme can be further provided as follows: the head searching structure comprises a head searching shaft fixed on the rack and arranged in parallel with the air inflation shaft, and the head searching structure further comprises head searching pieces, the head searching pieces comprising a hinged sleeve for hinging the head searching pieces with the head searching shaft, head searching plates for separating the roll head and fixed at one end of the hinged sleeve, the two head searching plates being symmetrically distributed outside the hinged sleeve, the two head searching plates forming a V-shaped opening, a reciprocating driving assembly being arranged between the two head searching plates, a first tape passing cavity for guiding the moving direction of the hook-and-loop tape being arranged on the head searching plate, the first tape passing cavity being arranged on the side of the head searching plate away from the reciprocating driving assembly, the width of the tape inlet of the first tape passing cavity being greater than the width of the tape outlet, a first photoelectric sensor being embedded in the first tape passing cavity, and the tape outlet direction of the first tape passing cavity being tangent to the hinged sleeve.

[0012] With the above technical scheme, the V-shaped head searching plate structure symmetrically distributed upwards and downwards forms a structure capable of bidirectional searching and separating the roll head, and the bidirectional head searching principle is as follows: in the initial state, the reciprocating driving assembly drives the head searching plate to make the angle bisector of the V-shaped opening of the head searching plate align with the shaft center of the air inflation shaft, the air inflation shaft is inflated to fix the hook-and-loop tape roll after the hook-and-loop tape roll is installed, the reciprocating driving cylinder drives the head searching plate to move downwards / upwards, so that the end of the head searching plate is tightly attached to the surface of the hook-and-loop tape roll, then the driving motor is rotated, the head searching plate performs the head searching operation, if the photoelectric sensor on the head searching plate contacting the hook-and-loop tape roll does not detect the passing of the hook-and-loop tape within the set time, the reciprocating driving assembly drives the head searching plate to move upwards / downwards (corresponding to the downwards / upwards in the foregoing description) to make the other head searching plate tightly attached, and the driving motor is reversed to make the other head searching plate perform the head searching operation. The reciprocating driving assembly continuously maintains the abutting state of the head searching plate and the surface of the roll, so that the head searching plate can effectively abut against the surface of the roll during the gradual reduction of the diameter of the roll due to unwinding, thereby reliably completing the separation of the tape and the roll. This design further automates the process without manual head searching, i.e., without the need to unify the winding direction of the roll during the winding process, further reduces the manual participation, and realizes the omnidirectional automatic head searching of the roll. The width of the tape inlet of the first tape passing cavity is greater than the width of the tape outlet, which facilitates the smooth introduction and gradual collection and positioning of the separated roll head, prevents the roll head from deviating during the guiding process, the tape outlet direction is small and tangent to the hinged sleeve, so that the roll head can be smoothly guided along the tangent direction once captured, reduces the risk of tape jamming, and ensures the smoothness of the tape conveying after the successful head searching.

[0013] The technical scheme can be further provided that the reciprocating driving assembly comprises a hinged joint, a connecting rod, a tension spring, a hinged seat mounted on the head-seeking plate, and a reciprocating cylinder mounted on the rack, the hinged seat is provided with a hinged shaft, one end of the connecting rod is hinged to the hinged seat through the hinged shaft, the other end of the connecting rod is provided with a tension spring shaft, the hinged joint is provided with a connecting rod sleeve, the connecting rod is inserted into the connecting rod sleeve, the connecting rod sleeve is provided with a second tension spring shaft away from one end of the connecting rod, one end of the tension spring is hung on the tension spring shaft, the other end of the tension spring is hung on the second tension spring shaft, the end of the hinged joint away from the connecting rod is linked with a sliding block, the rack is provided with a sliding groove, the sliding block is slidably installed in the sliding groove, and the reciprocating cylinder is provided with a piston rod, and the sliding block is connected with one end of the piston rod.

[0014] By adopting the technical scheme, the hinged joint is provided, and the hinged connection of the connecting rod and the hinged seat realizes the conversion of the linear motion of the cylinder to the swinging motion of the head-seeking plate, so that the connecting point of the head-seeking plate and the sliding block can keep vertical linear motion instead of rotating around the center of the head-seeking shaft during the rotation of the head-seeking plate. The tension spring assembly plays a buffering and resetting auxiliary role in the system. When the head-seeking plate encounters local bumps or abnormal resistance on the surface of the coil material, the tension spring can be elastically deformed to absorb impact energy, so as to avoid the mechanism jamming or component damage caused by rigid connection, and improve the fault tolerance and adaptability of the strip and coil separation operation. When the resistance disappears, the tension spring can also assist the mechanism to restore to the preset working state, so that the end of the head-seeking plate can be reliably attached to the surface of the coil, and the flexibility and reliability of the head-seeking action are ensured. As a power source, the reciprocating cylinder provides stable and controllable driving force, and through the transmission chain composed of the piston rod, the sliding block and the hinged joint, the head-seeking plate is finally driven to perform stable and reliable reciprocating head-seeking action, so as to ensure the continuity and durability of the automatic head-seeking process.

[0015] The technical scheme can be further provided that the feeding mechanism comprises a pushing plate, a pushing driving assembly, and a blocking plate, the pushing driving assembly comprises a lead screw and a lead screw motor for driving the rotation of the lead screw, the pushing plate is provided with a threaded hole matched with the lead screw, the pushing plate is installed on the lead screw through the threaded hole and is perpendicular to the inflation shaft, and the pushing plate can move along the axial direction of the lead screw when the lead screw motor drives the rotation of the lead screw; the end of the inflation shaft away from the driving motor is provided with a follower shaft, an outer sleeve with the same diameter as the inflation shaft is arranged on the outer side of the follower shaft, a bearing is arranged between the outer sleeve and the follower shaft, and a pair of parallel limiting planes are formed on the outer surface of the end of the outer sleeve away from the inflation shaft by cutting; the lower end of the blocking plate is rotatably arranged on the rack, a locking switch for locking the blocking plate and the rack is arranged between the blocking plate and the rack, the blocking plate is provided with a containing groove, the outer sleeve passes through the avoiding groove of the pushing plate, and the outer sleeve is clamped in the containing groove after passing through the avoiding groove, and the outer sleeve in the containing groove can be fixed when the locking switch is locked.

[0016] By adopting the above technical solution, the lead screw motor drives the lead screw to rotate, thereby precisely controlling the axial movement of the pusher plate along the bushing shaft, enabling automatic roll changing of multiple hook and loop fastener rolls on the bushing. Traditional feeding mechanisms use a single-reel shaft design, which can only load one roll of raw tape at a time. Even though an ultrasonic welding mechanism can connect to the next roll after one roll is consumed, the rewinding operation (installing the roll onto the reel shaft and adjusting the initial position of the roll) still requires manual operation. Frequent manual rewinding not only interrupts production continuity but also requires operators to constantly monitor the remaining amount of raw tape and cannot leave the equipment for extended periods. This technical solution, however, can load multiple rolls at once without requiring manual adjustment of the initial position of the tape, improving the automation level and efficiency of the feeding process. The specific roll changing process is as follows: When the first photoelectric sensor detects complete unloading, the reciprocating drive assembly drives the head-finding plate to reset, the lead screw motor drives the lead screw to rotate, moving the pusher plate. The pusher plate pushes the roll towards the air shaft to the appropriate position to complete the roll changing. The manual loading process of this technical solution is as follows: When there is no material roll on the bushing, press down the latch to open the locking switch, causing the latch to leave the receiving groove. With the receiving groove open, rotate the baffle plate clockwise to release the bushing. Remove the bushing and load the required number of material rolls. Reinstall the bushing and rotate the baffle plate counterclockwise. Close the locking switch to limit the bushing's position, completing the loading process. The baffle plate receiving groove, the pusher plate clearance groove, and the air shaft fixing end together constitute multi-point support for the bushing, improving structural strength and stability. The bearing prevents the bushing from rotating with the follower shaft. The baffle plate is rotatably connected to the frame. When the locking switch is open, it is convenient to manually remove the bushing to install the material roll. When the locking switch is closed, the frame and the baffle plate respectively conform to the two limiting planes of the bushing, clamping the bushing and preventing axial displacement and radial rotation.

[0017] The above technical solution can be further configured such that the feeding mechanism includes a bandwidth adjustment component, the bandwidth adjustment component includes a bandwidth adjustment push plate, a bandwidth adjustment cylinder for driving the bandwidth adjustment push plate, and a bandwidth adjustment piston rod, the bandwidth adjustment push plate is sleeved on the outside of the air shaft, one end of the bandwidth adjustment piston rod is connected to the bandwidth adjustment push plate, the other end of the bandwidth adjustment piston rod is connected to the bandwidth adjustment cylinder, and the bandwidth adjustment cylinder is fixed on the frame.

[0018] By adopting the above technical solution, the bandwidth adjustment component enables the equipment to fully adapt to hook and loop fastener rolls of different widths. The bandwidth adjustment cylinder drives the bandwidth adjustment push plate to move axially along the air expansion shaft, precisely setting the axial position of the hook and loop fastener roll to be unwound on the air expansion shaft. This ensures that the head-finding plate only contacts the surface of one roll, preventing excessive roll displacement during roll changing and the simultaneous separation of two rolls by the head-finding plate. The bandwidth adjustment push plate is semi-circular, with both ends not exceeding the farthest point of the air expansion shaft away from the bandwidth adjustment push plate, preventing interference between the bandwidth adjustment push plate and the head-finding plate.

[0019] The technical scheme can be further provided that the strip separating mechanism comprises a strip separating support, a front conveying belt group, a strip separating knife array, and a rear conveying belt group; the front conveying belt group is used to convey the hook-and-loop fastener from the strip outlet to the strip separating knife array, and comprises a front upper conveying belt, a front lower conveying belt, a front upper conveying roller, and a front lower conveying roller; the front upper conveying roller and the front lower conveying roller are installed at one end of the strip separating support close to the strip outlet; the front upper conveying belt is installed on the front upper conveying roller; and the front lower conveying belt is installed on the front lower conveying roller; the rear conveying belt group is used to convey the hook-and-loop fastener from the strip separating knife array to the winding mechanism, and comprises a rear upper conveying belt, a rear lower conveying belt, a rear upper conveying roller, and a rear lower conveying roller; the rear upper conveying roller and the rear lower conveying roller are installed at the other end of the strip separating support away from the strip outlet; the rear upper conveying belt is installed on the rear upper conveying roller; and the rear lower conveying belt is installed on the rear lower conveying roller; a strip inlet gap is formed between the front upper conveying belt and the front lower conveying belt; a strip outlet gap is formed between the rear upper conveying belt and the rear lower conveying belt; and the surfaces of the front upper conveying belt, the front lower conveying belt, the rear upper conveying belt, and the rear lower conveying belt are provided with fine teeth; a transmission motor is arranged on the rack; the front upper conveying roller and the rear upper conveying roller close to the side of the rack are linked with an upper sprocket system for synchronously driving the front upper conveying roller and the rear upper conveying roller and an upper transmission motor; the front lower conveying roller and the rear lower conveying roller close to the side of the rack are linked with a lower sprocket system for synchronously driving the front lower conveying roller and the rear lower conveying roller and a lower transmission motor; and a plurality of transmission chains are arranged on the upper sprocket system and the lower sprocket system respectively.

[0020] With the above technical scheme, the front and rear conveying belt groups form a continuous and stable material conveying system, ensuring that the hook-and-loop fastener drawn from the head searching mechanism can be smoothly clamped and conveyed through the strip separating knife array and finally guided to the winding mechanism. The front conveying belt group is responsible for receiving the hook-and-loop fastener sent after automatic head searching and accurately guiding it into the strip separating knife array for slitting. In this process, the front conveying belt group provides the force for the hook-and-loop fastener to pass through the strip separating knife array, and in this structure, the strip inlet gap, the horizontal part of the strip separating knife array, and the strip outlet gap are kept on the same horizontal line. The rear conveying belt group is responsible for reliably separating and conveying the multiple thin strips after slitting, preventing the winding and disorder of the material belt after slitting. The fine teeth arranged on the surface of the conveying belt increase the friction between the conveying belt and the hook-and-loop fastener. The upper and lower transmission motors drive the upper and lower sprocket systems through the transmission chains, making the upper rollers of the strip inlet gap and the strip outlet gap rotate in the same direction, and the lower rollers rotate in the opposite direction of the upper rollers, ensuring that the material belt in the strip inlet gap and the strip outlet gap can be reliably clamped and transported in one direction, preventing slipping and deviation during conveying. The synchronous rotation of the front and rear conveying belts prevents the front and rear conveying belt groups from having different transmission speeds, which may damage the material belt or cause blockage, ensuring accurate positioning of the slitting and winding positions and achieving high-quality slitting and neat winding.

[0021] The technical scheme can be further provided that the slitting knife array is located between the front conveying belt group and the rear conveying belt group, and comprises a knife holder, a slitting knife sliding seat, and a slitting knife; one end of the knife holder is fixed on a machine frame, the knife holder is provided with a sliding rail in the transverse direction, a plurality of slitting knife sliding seats are slidably installed on the sliding rail, each slitting knife sliding seat is provided with a slitting knife, and a plurality of slitting knife sliding seats are linked with an equidistance variable distance assembly; the equidistance variable distance assembly comprises a plurality of variable distance connecting rods, a variable distance cylinder, and a plurality of short connecting rods; each slitting knife sliding seat is provided with a connecting rod shaft, each connecting rod shaft except the two outermost connecting rod shafts is provided with two variable distance connecting rods, the middle parts of the two variable distance connecting rods on one connecting rod shaft are hinged to the connecting rod shaft and arranged in an X shape, and the end parts of the variable distance connecting rods on adjacent connecting rod shafts are hinged to each other to form a continuous scissor structure; the two outermost connecting rod shafts are respectively provided with two short connecting rods, one end of each short connecting rod is hinged to the outermost connecting rod shaft, and the other ends of the four short connecting rods are respectively hinged to the four end parts of the continuous scissor structure; the knife holder is provided with a variable distance cylinder fixed at one end close to the machine frame, and the slitting knife sliding seat away from the machine frame is fixed at one end of the knife holder away from the machine frame; the variable distance cylinder comprises a variable distance piston rod arranged along the direction of the knife holder, the variable distance piston rod is fixed at the end away from the machine frame and the end close to the machine frame of the slitting knife sliding seat, and the slitting knife sliding seat can change the distance under the drive of the variable distance cylinder and keep the equal distance between all the slitting knife sliding seats.

[0022] By using the above technical scheme, the slitting knife sliding seat is installed on the knife holder through the sliding rail, so that the transverse position of the slitting knife can be flexibly adjusted according to the processing specifications. The linkage of the equidistance variable distance assembly to all the slitting knife sliding seats ensures that all the slitting knife sliding seats can move synchronously and keep equal distance during the adjustment process, thereby keeping the equal distance between the slitting knives and realizing the quick and accurate change of the slitting width. The tedious process of manually measuring and positioning the slitting knives one by one in the traditional equipment is omitted, the changeover debugging time is greatly shortened, the skill requirement and labor intensity of the operator are reduced, the equidistance variable distance mechanism ensures the consistency of the slitting specifications, avoids human error, and quickly adapts to the processing requirements of multiple specifications and small batches. The use of the scissor type connecting rod mechanism can realize the equidistance variable distance of the slitting knives. When the variable distance cylinder drives the piston rod to extend or retract, the slitting knife sliding seat at one end is pushed or pulled, and all the intermediate slitting knife sliding seats are uniformly expanded or contracted through the transmission of the entire scissor connecting rod mechanism. The distance change amount between any adjacent knife seats is completely the same, the absolute equidistance of the slitting width is ensured, the accuracy is high, and the repeatability is good. The variable distance cylinder provides stable and powerful driving force, so that the variable distance process is quick and stable. The use of short connecting rods at the ends can prevent the part of the variable distance connecting rod protruding from the connecting rod shaft from interfering with the operation of the mechanism. The linkage of multiple slitting knife sliding seats is simplified by one cylinder control, the automation degree is high, the operation process is simplified, the equipment adjustment efficiency is improved, the highest part of the variable distance connecting rod during the adjustment process is always not higher than the upper end plane of the knife holder, and the blocking of the material belt is prevented.

[0023] The technical scheme can be further provided that the winding mechanism comprises a winding guide plate, a winding shaft, a winding motor driving the winding shaft to rotate, one end of the winding shaft is divided into an upper shaft body and a lower shaft body, the upper shaft body and the lower shaft body are both arc-shaped in cross section, a through gap for the hook and loop tape to pass through is formed between the upper shaft body and the lower shaft body, the winding motor is fixed on the rack, the winding motor comprises a winding motor shaft, and the other end of the winding shaft is connected with the winding motor shaft; a guide plate shaft is arranged between the winding guide plate and the rack, the winding guide plate is rotatably arranged on the guide plate shaft, the winding guide plate is provided with a second tape passing cavity, the second tape passing cavity is provided with an inlet facing the out tape gap, and the second tape passing cavity is provided with an outlet facing the through gap; and the through gap is provided with a second photoelectric sensor for detecting whether the hook and loop tape passes through.

[0024] The technical scheme can realize the following winding work: a plurality of hook and loop tapes from the rear conveying belt group firstly enter the second tape passing cavity of the rotatable winding guide plate from the inlet, pass through the second tape passing cavity, and enter the through gap from the outlet of the through gap aligned with the winding shaft, the second photoelectric sensor arranged in the through gap monitors whether the hook and loop tape passes through normally in real time, when the tape is detected to enter, the winding shaft rotates counterclockwise to wind, as the finished product roll is wound larger, an upward pushing force is generated on the winding guide plate to lift the winding guide plate, the winding guide plate rotates around the guide plate shaft, after winding is completed, the discharging mechanism takes the finished product roll, the winding guide plate falls back to the initial position under the action of gravity, the second photoelectric sensor detects that no tape passes through, the winding motor drives the winding shaft to reset to the state that the through gap is aligned with the second tape passing cavity outlet and remains, and waits for the next tape to pass through the through gap to perform the next round of winding.

[0025] The technical scheme can be further provided that the discharging mechanism comprises a pushing cylinder, and a discharging plate for pushing the finished product roll out of the winding shaft, the pushing cylinder is fixed on the rack, the pushing cylinder is provided with a pushing piston rod, the pushing piston rod is parallel to the winding shaft, the discharging plate is sleeved outside the winding shaft and connected with the pushing piston rod, and the plate surface of the discharging plate is perpendicular to the axial direction of the winding shaft.

[0026] The technical scheme can be further provided that the discharging mechanism comprises a pushing cylinder, and a discharging plate for pushing the finished product roll out of the winding shaft, the pushing cylinder is fixed on the rack, the pushing cylinder is provided with a pushing piston rod, the pushing piston rod is parallel to the winding shaft, the discharging plate is sleeved outside the winding shaft and connected with the pushing piston rod, and the plate surface of the discharging plate is perpendicular to the axial direction of the winding shaft.

[0027] The technical scheme can be further provided that the discharging mechanism comprises a pushing cylinder, and a discharging plate for pushing the finished product roll out of the winding shaft, the pushing cylinder is fixed on the rack, the pushing cylinder is provided with a pushing piston rod, the pushing piston rod is parallel to the winding shaft, the discharging plate is sleeved outside the winding shaft and connected with the pushing piston rod, and the plate surface of the discharging plate is perpendicular to the axial direction of the winding shaft.

[0028] After the material roll is installed on the air shaft, the air shaft can automatically clamp the hook and loop fastener roll and drive the material roll to rotate by the drive motor. The reciprocating drive component can automatically drive the V-shaped head-finding plate to find and separate the roll head by sticking to the surface of the material roll. After the roll head is discharged through the first belt passage cavity, the front conveyor belt group can stably clamp the material roll and transport it to the slitting knife array to complete the slitting. The equidistant variable pitch component can synchronously and equally adjust the position of all slitting knives. After the slitting, the hook and loop fastener is guided by the second belt passage cavity of the rear conveyor belt group and the winding guide plate and can be automatically wound up by the winding mechanism. Finally, the unloading plate can be driven by the pusher cylinder to push out the finished roll to achieve automatic unloading. The whole process has less manual intervention, short production downtime, high production continuity, and high overall efficiency.

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of Example 1;

[0031] Figure 2 This is a schematic diagram of the overall structure of Example 1 from another perspective;

[0032] Figure 3 This is a schematic diagram of the feeding mechanism in Example 1;

[0033] Figure 4 This is a schematic diagram of the head-finding structure and reciprocating drive assembly in Example 1;

[0034] Figure 5 This is a schematic diagram of the belt splitting mechanism in Example 1;

[0035] Figure 6 This is a cross-sectional schematic diagram of the belt-splitting mechanism in Example 1;

[0036] Figure 7 This is a schematic diagram of the structure of the segmented blade array in Example 1;

[0037] Figure 8 This is an exploded view of the segmented blade array in Example 1;

[0038] Figure 9 This is a schematic diagram of the winding mechanism and unloading mechanism in Example 1;

[0039] Figure 10 This is a schematic diagram of the head-finding structure and reciprocating drive assembly in Example 2;

[0040] Figure 11 This is a schematic diagram of the head-finding structure for peeling off the roll head in Example 1.

[0041] Label notes: rack 1, feeding mechanism 2, air inflation shaft 21, drive motor 22, motor shaft 221, pushing plate 23, pushing drive assembly 24, lead screw 241, lead screw motor 242, blocking roll plate 25, locking switch 251, containing groove 252, follow-up shaft 27, shaft sleeve 28, bearing 281, limiting plane 282, bandwidth adjustment assembly 29, bandwidth adjustment push plate 291, bandwidth adjustment cylinder 292, bandwidth adjustment piston rod 293, head finding structure 3, head finding shaft 31, head finding piece 32, hinged sleeve 321, head finding plate 322, first over-belt cavity 323, first photoelectric sensor 324, reciprocating drive assembly 33, hinged joint 331, connecting rod 332, tension spring 333, hinged seat 334, reciprocating cylinder 335, piston rod 3351, connecting rod sleeve 3311, tension spring shaft 3321, hinged shaft 3341, slider 336, sliding groove 337, belt separating mechanism 4, belt separating support 41, front conveying belt group 42, front upper conveying belt 421, front lower conveying belt 422, front upper conveying roller 423, front lower conveying roller 424, belt entering gap 425, rear conveying belt group 43, rear upper conveying belt 431, rear lower conveying belt 432, rear upper conveying roller 433, rear lower conveying roller 434, belt exiting gap 435, belt separating knife array 44, knife holder 441, separating knife sliding seat 442, separating knife 443, sliding rail 444, equidistance variable distance assembly 445, variable distance connecting rod 4451, variable distance cylinder 4452, short connecting rod 4453, variable distance piston rod 44521, connecting rod shaft 44511, transmission motor 46, transmission chain 47, upper sprocket system 48, lower sprocket system 461, lower transmission motor 462, winding mechanism 5, winding guide plate 51, winding shaft 52, winding motor 53, winding motor shaft 531, upper shaft body 521, lower shaft body 522, belt passing gap 523, second photoelectric sensor 524, guide plate shaft 511, second over-belt cavity 512, discharging mechanism 6, pushing cylinder 61, discharging plate 62, pushing piston rod 611, head finding piece 32a, hinged sleeve 321a, head finding plate 322a, head finding plate 322b, reciprocating drive assembly 33a, hinged joint 331a, connecting rod 332a, tension spring 333a, hinged seat 334a, reciprocating cylinder 335a, hinged shaft 3341a, tension spring shaft 3321a, connecting rod sleeve 3311a, slider 336a, rack 1a, sliding groove 337a, piston rod 3351a, first photoelectric sensor 324a, drive motor 22a, hook-and-loop tape blank roll 8, hook-and-loop tape blank roll head 9. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0043] Embodiment 1: A self-homing fastener tape separating and winding machine as shown in Figures 1-9 The self-homing fastener tape separating and winding machine comprises a frame 1, a feeding mechanism 2, a separating mechanism 4, a winding mechanism 5 and a discharging mechanism 6. The frame 1 serves as an overall support structure. The feeding mechanism 2 is installed on the frame 1 and is used for automatically clamping and conveying a fastener tape roll 8. The feeding mechanism 2 comprises an inflatable shaft 21, a driving motor 22, a pushing plate 23, a pushing driving assembly 24, a roll blocking plate 25 and a tape width adjusting assembly 29. The inflatable shaft 21 is inflated to fix the inner hole of the fastener tape roll. The driving motor 22 is fixed on the frame 1, and the motor shaft 221 is detachably connected with one end of the inflatable shaft 21 to drive the rotation of the inflatable shaft 21. The pushing driving assembly 24 comprises a lead screw 241 and a lead screw motor 242. The lead screw motor 242 is fixed on the frame 1 and drives the rotation of the lead screw 241. The pushing plate 23 is provided with a threaded hole matched with the lead screw 241. The pushing plate 23 is installed on the lead screw 241 through the threaded hole and is perpendicular to the inflatable shaft 21. When the lead screw 241 rotates, the pushing plate 23 can move axially along the lead screw 241. The end of the inflatable shaft 21 away from the driving motor 22 is provided with a follower shaft 27. The outer side of the follower shaft 27 is sleeved with a shaft sleeve 28. The outer diameter of the shaft sleeve 28 is equal to that of the inflatable shaft 21. A bearing 281 is arranged between the shaft sleeve 28 and the follower shaft 27. A pair of parallel limiting planes 282 are formed on the outer surface of the end of the shaft sleeve 28 away from the inflatable shaft 21 by cutting. The lower end of the roll blocking plate 25 is rotatably arranged on the frame 1 through hinging. A locking switch 251 is arranged between the roll blocking plate 25 and the frame 1. The roll blocking plate 25 is provided with a containing groove 252. The pushing plate 23 is provided with an avoiding groove through which the shaft sleeve 28 passes. After the shaft sleeve 28 passes through the avoiding groove, it is placed in the containing groove 252. When the locking switch 251 is locked, the shaft sleeve 28 in the containing groove 252 can be fixed. The tape width adjusting assembly 29 comprises a tape width adjusting push plate 291 and a tape width adjusting cylinder 292. The tape width adjusting push plate 291 is sleeved on the outer side of the inflatable shaft 21. There is a gap between the two, and they are always not in contact and interference. The tape width adjusting cylinder 292 is connected with the tape width adjusting push plate 291 through a tape width adjusting piston rod 293. The tape width adjusting cylinder 292 is fixed on the frame 1 and is used for adjusting the axial position range of the fastener tape roll on the inflatable shaft 21.

[0044] The rack 1 is provided with a head searching structure 3 distributed between the feeding mechanism 2 and the separating mechanism 4, which is used for automatically searching and peeling the hook-and-loop tape roll head 9. The head searching structure 3 comprises a head searching shaft 31 and a head searching piece 32. The head searching shaft 31 is fixed on the rack 1 and arranged in parallel with the air inflation shaft 21. The head searching piece 32 comprises a hinged sleeve 321 and a head searching plate 322. The hinged sleeve 321 is sleeved on the head searching shaft 31 to realize hinging. One end of the head searching plate 322 is fixed with the hinged sleeve 321. The head searching plate 322 is provided with a first tape passing cavity 323. The width of the tape inlet of the first tape passing cavity 323 is greater than that of the tape outlet. The tape outlet direction is tangent to the hinged sleeve 321. A first photoelectric sensor 324 is embedded in the first tape passing cavity 323. A reciprocating driving assembly 33 is arranged below the head searching plate 322. The reciprocating driving assembly 33 comprises a hinged joint 331, a connecting rod 332, a tension spring 333, a hinged seat 334 and a reciprocating air cylinder 335. The hinged seat 334 is fixed on the head searching plate 322 and is provided with a hinged shaft 3341. One end of the connecting rod 332 is hinged with the hinged seat 334 through the hinged shaft 3341. The other end of the connecting rod 332 is provided with a tension spring shaft 3321. The hinged joint 331 is provided with a connecting rod sleeve 3311. The connecting rod 332 is inserted in the connecting rod sleeve 3311. The end of the connecting rod sleeve 3311 away from the connecting rod 332 is provided with a second tension spring shaft (not shown in the figure). One end of the tension spring 333 is hung on the tension spring shaft 3321, and the other end is hung on the second tension spring shaft. The end of the hinged joint 331 away from the connecting rod 332 is connected with a sliding block 336. The rack 1 is provided with a sliding groove 337. The sliding block 336 is slidably installed in the sliding groove 337. The reciprocating air cylinder 335 is fixed on the rack 1 and is provided with a piston rod 3351. The sliding block 336 is connected with one end of the piston rod 3351.

[0045] The striping mechanism 4 comprises a striping support 41 fixed on the frame 1, a front conveying belt group 42 for conveying the hook-and-loop fastener from the belt outlet of the head searching structure 3 to the striping cutter array 44, a striping cutter array 44, and a rear conveying belt group 43 for conveying the hook-and-loop fastener from the striping cutter array 44 to the winding mechanism 5. The front conveying belt group 42 comprises a front upper conveying belt 421, a front lower conveying belt 422, a front upper conveying roller 423, and a front lower conveying roller 424. The front upper conveying roller 423 and the front lower conveying roller 424 are installed at one end of the striping support 41 close to the belt outlet. The front upper conveying belt 421 is installed on the front upper conveying roller 423, and the front lower conveying belt 422 is installed on the front lower conveying roller 424. A belt inlet gap 425 is formed between the front upper conveying belt 421 and the front lower conveying belt 422. The rear conveying belt group 43 comprises a rear upper conveying belt 431, a rear lower conveying belt 432, a rear upper conveying roller 433, and a rear lower conveying roller 434. The rear upper conveying roller 433 and the rear lower conveying roller 434 are installed at one end of the striping support 41 away from the belt outlet. The rear upper conveying belt 431 is installed on the rear upper conveying roller 433, and the rear lower conveying belt 432 is installed on the rear lower conveying roller 434. A belt outlet gap 435 is formed between the rear upper conveying belt 431 and the rear lower conveying belt 432. The surfaces of the front upper conveying belt 421, the front lower conveying belt 422, the rear upper conveying belt 431, and the rear lower conveying belt 432 are provided with fine teeth to increase the friction. The frame 1 is fixed with an upper driving motor 46 and a lower driving motor 462. The front upper conveying roller 423 and the rear upper conveying roller 433 are fixed with an upper sprocket system 48 and driven by the upper driving motor 46. The front lower conveying roller 424 and the rear lower conveying roller 434 are fixed with a lower sprocket system 461 and driven by the lower driving motor 462. A driving chain 47 is wound around the lower sprocket system 461 and the upper sprocket system 48, respectively, so that the upper sprockets are linked with each other and the lower sprockets are linked with each other. When the upper driving motor 46 and the lower driving motor 462 rotate, the sprockets on the upper side of the belt inlet gap or the belt outlet gap rotate in the same direction, and the sprockets on the lower side rotate in the opposite direction.

[0046] The slitting knife array 44 is located between the front conveying belt group 42 and the rear conveying belt group 43, and comprises a knife holder 441, a slitting knife sliding seat 442 and a slitting knife 443. The one end of the knife holder 441 is fixed on the machine frame 1. The knife holder 441 is provided with a sliding rail 444 in the transverse direction. A plurality of slitting knife sliding seats 442 are slidably installed on the sliding rail 444. The slitting knife 443 is installed on each slitting knife sliding seat 442. A plurality of slitting knife sliding seats 442 are connected with an equidistant variable distance assembly 445. The equidistant variable distance assembly 445 comprises a plurality of variable distance connecting rods 4451, a variable distance cylinder 4452 and a plurality of short connecting rods 4453. Each slitting knife sliding seat 442 is provided with a connecting rod shaft 44511. Except for the two outermost connecting rod shafts 44511, each connecting rod shaft 44511 is provided with two variable distance connecting rods 4451. The middle parts of the two variable distance connecting rods 4451 on the connecting rod shaft 44511 are hingedly connected with the connecting rod shaft 44511 and arranged in an X shape. The end parts of the variable distance connecting rods 4451 on the adjacent connecting rod shafts 44511 are hingedly connected to form a continuous scissor structure. The two outermost connecting rod shafts 44511 are respectively provided with two short connecting rods 4453. One end of each short connecting rod 4453 is hingedly connected with the outermost connecting rod shaft 44511. The other ends of the four short connecting rods 4453 are respectively hingedly connected with the four ends of the continuous scissor structure. The knife holder 441 is fixed with the variable distance cylinder 4452 close to the machine frame 1. The slitting knife sliding seat 442 away from the machine frame 1 is fixed on the end of the knife holder 441 away from the machine frame 1. The variable distance cylinder 4452 comprises a variable distance piston rod 44521 arranged along the direction of the knife holder 441. The variable distance piston rod 44521 is fixed with the slitting knife sliding seat 442 away from the machine frame 1 and close to the machine frame 1. The variable distance cylinder 4452 drives the slitting knife sliding seat 442 to move equidistantly.

[0047] The winding mechanism 5 comprises a winding guide plate 51, a winding shaft 52 and a winding motor 53. The winding motor 53 is fixed on the machine frame 1. The winding motor shaft 531 of the winding motor 53 is connected with the other end of the winding shaft 52. One end of the winding shaft 52 is divided into an upper shaft body 521 and a lower shaft body 522. The cross sections of the upper shaft body 521 and the lower shaft body 522 are both arc-shaped. The upper shaft body 521 and the lower shaft body 522 form a through belt gap 523. The through belt gap 523 is provided with a second photoelectric sensor 524. The winding guide plate 51 is provided with a guide plate shaft 511 between the machine frame 1. The winding guide plate 51 is rotatably arranged on the guide plate shaft 511. The winding guide plate 51 is provided with a second belt passing cavity 512. The inlet of the second belt passing cavity 512 is directed to the out belt gap 435. The outlet of the second belt passing cavity 512 is directed to the through belt gap 523.

[0048] The blanking mechanism 6 is arranged on the winding mechanism 5 and comprises a pushing cylinder 61 and a discharging plate 62. The pushing cylinder 61 is fixed on the machine frame 1. The pushing cylinder 61 is provided with a pushing piston rod 611. The pushing piston rod 611 is parallel to the winding shaft 52. The discharging plate 62 is sleeved on the outer side of the winding shaft 52 and connected with the pushing piston rod 611. The plate surface of the discharging plate 62 is perpendicular to the axial direction of the winding shaft 52.

[0049] The working principle of this embodiment is as follows:

[0050] When the equipment is started, the operator places multiple hook and loop fastener rolls 8 onto the air shaft 21 and bushing 28, and adjusts the position of the bandwidth adjustment push plate 291 through the bandwidth adjustment component 29 to ensure that only a single roll is aligned with the position of the seeker structure 3; the air shaft 21 is inflated to fix the hook and loop fastener roll 8, and the drive motor 22 drives the air shaft 21 to rotate. At the same time, the reciprocating cylinder 335 of the reciprocating drive component 33 drives the slider 336 to slide in the slide groove 337 through the piston rod 3351. Through the hinge joint 331 and the connecting rod 332, the seeker component 32 is driven to rotate around the seeker shaft 31, so that the V-shaped opening of the seeker plate 322 is pressed against the surface of the roll, and the tension spring 333 provides cushioning to ensure the fit; when the roll rotates, the hook and loop fastener roll head 9 is lifted by the end of the seeker plate 322 and enters the first belt passage cavity 323 (e.g., Figure 11 As shown), the head-finding plate 322 guides the hook and loop fastener blank roll 9 to the belt-splitting mechanism 4; after the hook and loop fastener is discharged through the first belt-passing cavity 323, it enters the belt-feeding gap 425 of the front conveyor belt group 42. The drive motor 46 drives each conveyor roller synchronously through the drive chain 47, driving the hook and loop fastener through the belt-splitting knife array 44. The slitting knife 443 slits the hook and loop fastener. The equidistant pitch variable pitch component 445 drives the pitch variable pitch piston rod 44521 through the pitch variable pitch cylinder 4452, which moves equidistantly through the scissor fork structure linked to the slitting knife slide 442 to adjust the slitting width; the slitting tape is then slit. The hook and loop tape is discharged through the tape exit gap 435 of the rear conveyor belt group 43 and enters the second tape passage cavity 512 of the take-up guide plate 51. After passing through the tape passage gap 523 of the take-up shaft 52, the second photoelectric sensor 524 detects the hook and loop tape. The take-up motor 53 drives the take-up shaft 52 to rotate for winding. During the winding process, the take-up guide plate 51 rotates around the guide plate shaft 511 as the material roll increases in size. After the winding is completed, the push cylinder 61 of the unloading mechanism 6 pushes the unloading plate 62 through the push piston rod 611 to push the finished roll out from the take-up shaft 52, completing the automatic unloading.

[0051] Example 2: As Figure 10 As shown, another embodiment of the present invention is illustrated. This embodiment 2 has the same content as embodiment 1, so it will not be repeated here. The difference between this embodiment 2 and embodiment 1 is that:

[0052] The outer side of the hinge sleeve 321a has symmetrically distributed head-finding plates 322a and 322b, forming a V-shaped opening. A reciprocating drive assembly 33a is disposed between the head-finding plates 322a and 322b. The reciprocating drive assembly 33a includes a hinge joint 331a, a connecting rod 332a, a tension spring 333a, a hinge seat 334a, and a reciprocating cylinder 335a. The hinge seat 334a is fixed to one side of each of the two head-finding plates and has a hinge shaft 3341a. One end of the connecting rod 332a is hinged to the hinge seat 334a via the hinge shaft 3341a, and the other end of the connecting rod 332a is provided with a tension spring shaft 3321a. The hinge joint 331a has a connecting rod sleeve 3311a. 32a is inserted into the connecting rod sleeve 3311a. A second tension spring shaft is provided at the end of the connecting rod sleeve 3311a away from the connecting rod 332a. One end of the tension spring 333a is hooked on the tension spring shaft 3321a, and the other end is hooked on the second tension spring shaft. A slider 336a is linked at the end of the hinge joint 331a away from the connecting rod 332a. A slide groove 337a is provided on the frame 1a. The slider 336a can be slidably installed in the slide groove 337a. The reciprocating cylinder 335a is fixed on the frame 1a and is provided with a piston rod 3351a. One end of the slider 336a is connected to the piston rod 3351a.

[0053] The working principle of this embodiment is as follows:

[0054] First, the head-finding plate 322a is used to find the head using the principle described in Example 1. If the first photoelectric sensor 324a does not detect the hook and loop fastener, the reciprocating drive assembly 33a drives another head-finding plate 322b to stick to the surface of the roll, and the drive motor 22a reverses to perform a second head-finding. If no material is detected passing through the first photoelectric sensor 324a after the set number of revolutions / time, it indicates that the previous head-finding process may have missed the head of the roll. At this time, the reciprocating motion is repeated three times to find the head. This process is repeated until the head-finding is successful or the set maximum number of head-finding cycles is completed.

[0055] The above-described embodiments are merely one implementation of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A self-seeking head fastener tape separating and winding machine, comprising a frame, a feeding mechanism, a separating mechanism and a winding mechanism, characterized in that: the feeding mechanism comprises an inflatable shaft for clamping a fastener tape roll, a driving motor mounted on the frame for driving the inflatable shaft to rotate, the driving motor is provided with a motor shaft, one end of the inflatable shaft is detachably connected with the motor shaft; a seeking head structure for finding the roll head from the fastener tape roll and stripping the roll head is mounted on the frame between the feeding mechanism and the separating mechanism; the seeking head structure comprises a seeking head shaft fixed on the frame and arranged in parallel with the inflatable shaft, and further comprises a seeking head piece, the seeking head piece comprises a hinge sleeve for hingedly connecting the seeking head piece with the seeking head shaft, and a seeking head plate for separating the roll head and fixed at one end with the hinge sleeve, a first tape passing cavity for guiding the fastener tape to pass through is arranged on the seeking head plate, the width of the tape inlet of the first tape passing cavity is greater than that of the tape outlet, a reciprocating driving assembly for driving the seeking head piece to rotate around the seeking head shaft is arranged on one side of the seeking head plate; the feeding mechanism further comprises a pushing plate, a pushing driving assembly and a roll blocking plate, the pushing driving assembly comprises a lead screw, a lead screw motor for driving the lead screw to rotate and fixed on the frame, the pushing plate is provided with a threaded hole matched with the lead screw, the pushing plate is mounted on the lead screw through the threaded hole and is perpendicular to the inflatable shaft, the pushing plate can move along the axial direction of the lead screw when the lead screw motor drives the lead screw to rotate; a follower shaft is arranged at the end of the inflatable shaft away from the driving motor, an axle sleeve with the same diameter as the inflatable shaft is sleeved outside the follower shaft, a bearing is arranged between the axle sleeve and the follower shaft, a pair of parallel limiting planes are formed on the outer surface of the end of the axle sleeve away from the inflatable shaft by cutting; the lower end of the roll blocking plate is rotatably arranged on the frame, a locking switch for locking the roll blocking plate and the frame is arranged therebetween, a containing groove is arranged on the roll blocking plate, the axle sleeve passes through the avoiding groove of the pushing plate and is clamped in the containing groove, the axle sleeve in the containing groove can be fixed when the locking switch is locked; a discharging mechanism for taking off the rewound fastener tape roll is arranged on the winding mechanism. the seeking head structure comprises a seeking head shaft fixed on the frame and arranged in parallel with the inflatable shaft, and further comprises a seeking head piece, the seeking head piece comprises a hinge sleeve for hingedly connecting the seeking head piece with the seeking head shaft, and a seeking head plate for separating the roll head and fixed at one end with the hinge sleeve, two seeking head plates are symmetrically arranged outside the hinge sleeve, the two seeking head plates form a V-shaped opening, a reciprocating driving assembly is arranged between the two seeking head plates, a first tape passing cavity for guiding the fastener tape to pass through is arranged on the seeking head plate, the first tape passing cavity is arranged on the side of the seeking head plate away from the reciprocating driving assembly, the width of the tape inlet of the first tape passing cavity is greater than that of the tape outlet, a first photoelectric sensor is embedded in the first tape passing cavity, and the tape outlet direction of the first tape passing cavity is tangent to the hinge sleeve. ​ ​ ​ 2. The self-aligning fastener strip unwinder of claim 1, wherein: ​ 3. The self-aligning fastener strip unwinder of claim 1 or 2, wherein: The reciprocating drive assembly comprises a hinged joint, a connecting rod, a tension spring, a hinged seat mounted on a head-seeking plate, a reciprocating cylinder mounted on a rack, a hinged shaft is arranged on the hinged seat, one end of the connecting rod is hinged with the hinged seat through the hinged shaft, the other end of the connecting rod is provided with a tension spring shaft, the hinged joint is provided with a connecting rod sleeve, the connecting rod is inserted into the connecting rod sleeve, the connecting rod sleeve is provided with a second tension spring shaft away from one end of the connecting rod, one end of the tension spring is hung on the tension spring shaft, the other end of the tension spring is hung on the second tension spring shaft, the end of the hinged joint away from the connecting rod is linked with a sliding block, the rack is provided with a sliding groove, the sliding block is slidably installed in the sliding groove, the reciprocating cylinder is provided with a piston rod, and the sliding block is connected with one end of the piston rod.

4. The self-aligning fastener strip unwinder of claim 3, wherein: The feeding mechanism comprises a bandwidth adjustment assembly, the bandwidth adjustment assembly comprises a bandwidth adjustment push plate, a bandwidth adjustment cylinder for driving the movement of the bandwidth adjustment push plate, and a bandwidth adjustment piston rod, the bandwidth adjustment push plate is sleeved outside the gas inflation shaft, one end of the bandwidth adjustment piston rod is connected with the bandwidth adjustment push plate, the other end of the bandwidth adjustment piston rod is connected with the bandwidth adjustment cylinder, and the bandwidth adjustment cylinder is fixed on the rack.

5. The self-aligning fastener strip unwinder of claim 4, wherein: The band separating mechanism comprises a band separating support, a front conveying belt group, a band separating knife array, and a rear conveying belt group. The front conveying belt group is used for conveying the hook-and-loop tape from the tape outlet to the band separating knife array, and comprises a front upper conveying belt, a front lower conveying belt, a front upper conveying roller and a front lower conveying roller, the front upper conveying roller and the front lower conveying roller are installed on one end of the band separating support close to the tape outlet, the front upper conveying belt is installed on the front upper conveying roller, and the front lower conveying belt is installed on the front lower conveying roller. The rear conveying belt group is used for conveying the hook-and-loop tape from the band separating knife array to the winding mechanism, and comprises a rear upper conveying belt, a rear lower conveying belt, a rear upper conveying roller and a rear lower conveying roller, the rear upper conveying roller and the rear lower conveying roller are installed on the end of the band separating support away from the tape outlet, the rear upper conveying belt is installed on the rear upper conveying roller, and the rear lower conveying belt is installed on the rear lower conveying roller. The front upper conveying belt and the front lower conveying belt form an inlet gap, the rear upper conveying belt and the rear lower conveying belt form an outlet gap, and the surfaces of the front upper conveying belt, the front lower conveying belt, the rear upper conveying belt and the rear lower conveying belt are provided with fine teeth. The rack is provided with a transmission motor, the front upper conveying roller and the rear upper conveying roller on the side close to the rack are linked with an upper sprocket system for synchronously driving the front upper conveying roller and the rear upper conveying roller and an upper transmission motor, the front lower conveying roller and the rear lower conveying roller on the side close to the rack are linked with a lower sprocket system for synchronously driving the front lower conveying roller and the rear lower conveying roller and a lower transmission motor, and a plurality of transmission chains are arranged on the upper sprocket system and the lower sprocket system respectively.

6. The self-aligning fastener strip unwinder of claim 5, wherein: The slitting cutter array is located between the front conveying belt group and the rear conveying belt group, and comprises a cutter holder, a slitting cutter sliding seat, and a slitting cutter. One end of the cutter holder is fixed on a machine frame. The cutter holder is provided with sliding rails in the transverse direction. A plurality of slitting cutter sliding seats are slidably installed on the sliding rails. Each slitting cutter sliding seat is provided with a slitting cutter. A plurality of slitting cutter sliding seats are linked with an equal-distance variable-distance assembly. The equal-distance variable-distance assembly comprises a plurality of variable-distance connecting rods, a variable-distance cylinder, and a plurality of short connecting rods. Each slitting cutter sliding seat is provided with a connecting rod shaft. Except for the two outermost connecting rod shafts, each connecting rod shaft is provided with two variable-distance connecting rods. The middle portions of the two variable-distance connecting rods on one connecting rod shaft are hingedly connected to the connecting rod shaft and arranged in an X shape. The end portions of the variable-distance connecting rods on adjacent connecting rod shafts are hingedly connected to each other to form a continuous scissor structure. The two outermost connecting rod shafts are respectively provided with two short connecting rods. One end of each short connecting rod is hingedly connected to the outermost connecting rod shaft. The other ends of the four short connecting rods are respectively hingedly connected to the four ends of the continuous scissor structure. The cutter holder is provided with a variable-distance cylinder at the end close to the machine frame. The slitting cutter sliding seat at the end away from the machine frame is fixed on the end of the cutter holder away from the machine frame. The variable-distance cylinder comprises a variable-distance piston rod arranged in the direction of the cutter holder. The variable-distance piston rod is fixed at the end away from the machine frame and at the end close to the machine frame. The slitting cutter sliding seat can change the distance under the drive of the variable-distance cylinder and keep the equal distance between all slitting cutter sliding seats.

7. The self-aligning fastener strip unwinder of claim 6, wherein: The winding mechanism comprises a winding guide plate, a winding shaft, and a winding motor for driving the winding shaft to rotate. One end of the winding shaft is divided into an upper shaft body and a lower shaft body. The cross sections of the upper shaft body and the lower shaft body are both arc-shaped. A through gap for passing the hook and loop tape is formed between the upper shaft body and the lower shaft body. The winding motor is fixed on the machine frame. The winding motor comprises a winding motor shaft. The other end of the winding shaft is linked with the winding motor shaft. A guide plate shaft is arranged between the winding guide plate and the machine frame. The winding guide plate is rotatably arranged on the guide plate shaft. The winding guide plate is provided with a second tape passing cavity. The inlet of the second tape passing cavity faces the tape outlet gap. The outlet of the second tape passing cavity faces the through gap. The through gap is provided with a second photoelectric sensor for detecting whether the hook and loop tape passes through.

8. The self-aligning fastener strip unwinder of claim 7, wherein: The unloading mechanism comprises a pushing cylinder and a discharging plate for pushing the completed roll from the winding shaft. The pushing cylinder is fixed on the machine frame. The pushing cylinder is provided with a pushing piston rod. The pushing piston rod is parallel to the winding shaft. The discharging plate is sleeved outside the winding shaft and connected with the pushing piston rod. The plate surface of the discharging plate is perpendicular to the axial direction of the winding shaft.

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