Bath towel folding equipment

Abstract

The utility model relates to bath towel folding equipment which comprises an unwinding and feeding device, a conveying and cutting device, a bath towel inward folding device and a bath towel front and back folding device, the unwinding and feeding device comprises an unwinding mechanism on a rack, the conveying and cutting device comprises a cutting mechanism, a material pulling mechanism and a material clamping mechanism, and the material pulling mechanism comprises a taking and placing clamp of a broken material head. The cutting-off mechanism is arranged between a first clamping and releasing unit and a second clamping and releasing unit of the clamping mechanism, the output side of the unwinding and feeding device is connected with the input side of the conveying and cutting-off device, and the output side of the conveying and cutting-off device is connected with the input side of the bath towel inward folding device. The output side of the bath towel inward folding device is connected with the input side of the bath towel front-back folding device. Bath towel rolling materials can be cut off and conveyed in a matched mode through the conveying and cutting-off device after being unrolled and output, so that the bath towel units are folded inwards and folded front and back in sequence.

Description

TECHNICAL FIELD

[0001] The utility model relates to bath towel packaging equipment. BACKGROUND

[0002] Bath towel is a common household item, and disposable bath towel is a common consumable in the hotel industry. The bath towel can be supplied after feeding, and then other processes (such as cutting, folding, and packaging) are performed to form individual bath towel products that are independently packaged and can be supplied to various hotels. The material of the bath towel usually has warp and weft, and in addition, the bath towel is easily stretched and has a rebounding property, which affects the length (measurement) of each unit bath towel, and it may even be broken. Therefore, how to feed the bath towel to meet the production of individual bath towel products that are independently packaged is crucial. In addition, bath towels (such as bath towels made of towel material) are as soft as ordinary towels, and compared to ordinary towels, bath towels are longer and larger. The bath towel is relatively soft, and after being cut, how to continue to feed the continuous material forward and how to ensure smooth material feeding and smooth passage through the cutting structure need to be solved. In addition, for some hotel scenarios that require bath towels and one-time packaging, it is relatively more hygienic. Before bagging and packaging, the bath towel needs to be folded, which not only makes the bath towel relatively neat, but also facilitates bagging and packaging. How to supply bath towel material and cooperate with folding operations is a problem. Among them, the packaging mechanism, such as the pillow-type packaging machine, is a mature and common bagging packaging mechanism. SUMMARY

[0003] In view of the technical problems in the background art, the utility model aims to provide a bath towel folding equipment.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: a bath towel folding equipment, comprising a unwinding feeding device, a conveying and cutting device, a bath towel middle folding device, and a bath towel front and rear folding device, characterized in that: the unwinding feeding device comprises a unwinding mechanism on a rack, the conveying and cutting device comprises a cutting mechanism, a pulling mechanism, and a clamping mechanism, the pulling mechanism comprises a taking and placing clamp for cutting material heads, the taking and placing clamp is movably arranged before and after, the clamping mechanism comprises a first clamping unit and a second clamping unit, the second clamping unit is movably arranged before and after the first clamping unit, the cutting part of the cutting mechanism is arranged between the first clamping unit and the second clamping unit, the output side of the unwinding feeding device is connected with the input side of the conveying and cutting device, the output side of the conveying and cutting device is connected with the input side of the bath towel middle folding device, and the output side of the bath towel middle folding device is connected with the input side of the bath towel front and rear folding device.

[0005] The above technical solutions can be further optimized or supplemented as follows.

[0006] For example, the unwinding mechanism is provided with an unwinding feeding component, the unwinding feeding component is located on the frame, the unwinding feeding component comprises a winding support and a winding dragging conveying belt, the winding dragging conveying belt is arranged on the winding support, and the winding dragging conveying belt is further connected with a belt body winding driving device.

[0007] For another example, the unwinding mechanism comprises an unwinding support swing arm, the unwinding support swing arm is connected with a lifting swing driving device, a swing support pivot is arranged between the unwinding support swing arm and the frame, and the unwinding support swing arm is connected with the swing support pivot; at least a first transmission wheel and a second transmission wheel are arranged on the winding support, the winding dragging conveying belt is arranged around the first transmission wheel and the second transmission wheel, and the first transmission wheel is connected with the belt body winding driving device; in the unwinding feeding working state, the winding dragging conveying belt on the winding support is kept in contact with the front side winding; the frame is further provided with a base, a transverse guide rail is arranged on the base, the frame is arranged on the transverse guide rail, and a transverse correction driving device is further arranged between the frame and the base; the transverse correction driving device comprises a correction motor.

[0008] For example, the lifting and swinging driving device comprises a lifting and swinging driving cylinder, the lifting and swinging driving device is connected to the rear part of the unwinding support swinging arm, and the swinging support rotating shaft is connected to the middle part of the unwinding support swinging arm; the lifting and swinging driving device is installed on the frame; the front part of the outer side of the unwinding support swinging arm is further connected to a swinging stable support structure, the swinging stable support structure comprises a first sliding support block, a connecting support rotating shaft and a second sliding support block, the first sliding support block is arranged on the lifting guide rail, the first sliding support block and the second sliding support block are connected through the connecting support rotating shaft, and the second sliding support block is arranged on the linear guide rail of the unwinding support swinging arm; at least one of the first sliding support block and the second sliding support block is provided with a first bearing between the first sliding support block and the connecting support rotating shaft; the linear guide rail is arranged on the outer side of the unwinding support swinging arm; the unwinding support swinging arm comprises left and right swinging arm bodies arranged side by side, the left and right swinging arm bodies are connected through a connecting part, the front end of the swinging arm body is further provided with a protrusion, the swinging arm body is provided with a reel support plane, and the protrusion is located at the front end of the reel support plane; the reel support plane is arranged on the upper edge of the swinging arm body; the unwinding mechanism further comprises a reel unwinding position locking device, the reel unwinding position locking device is arranged in correspondence with the unwinding support swinging arm in the lifting position; the reel unwinding position locking device is arranged on the frame; the reel unwinding position locking device comprises a locking seat and a movable lock bolt, the locking seat is provided with a lock opening for placing the unwinding reel, the movable lock bolt is arranged at the entrance of the lock opening, the lock opening is arranged forwardly, and the reel support plane on the unwinding support swinging arm in the lifting position is arranged in correspondence with the lock opening; the unwinding mechanism is provided with an unwinding reel, the unwinding reel comprises a shaft body and a bearing sleeve, the bearing sleeve is arranged at the end of the shaft body, the shaft body and the bearing sleeve are provided with a reel bearing therebetween, and the bearing sleeve is arranged in correspondence with the reel unwinding position locking device; the unwinding auxiliary idler wheel is further arranged on the winding support, the unwinding auxiliary idler wheel is located on the inner side of the winding pulling belt, the winding support is further connected with the winding separation state switching device through the second bearing, the winding support is swingably arranged about the main rotating shaft, the winding support and the frame are provided with the winding separation state switching device, the winding separation state switching device comprises a switching and holding cylinder, the switching and holding cylinder is hingedly connected to the frame, and the switching and holding cylinder is hingedly connected to the winding support.

[0009] For another example, the first clamping unit comprises a first upper pressing component and a first lower supporting component which are opened and closed in cooperation, and the second clamping unit comprises a second upper pressing component and a second lower supporting component which are opened and closed in cooperation; the material clamping mechanism further comprises a third clamping unit, the third clamping unit is arranged at the front side of the second clamping unit, the second clamping unit is located between the first clamping unit and the third clamping unit, the second lower supporting component is arranged to move forward and backward, and the second lower supporting component is in transmission connection with the forward and backward movement driving device; the third clamping unit comprises a third upper pressing component and a third lower supporting component which are opened and closed in cooperation.

[0010] In addition, the second lower supporting component is further provided with a material taking gap, the taking and placing clamp is arranged in correspondence with the material taking gap, and the material taking gap is located at the rear edge of the second lower supporting component; the first upper pressing component is arranged to move up and down, the first lower supporting component is arranged to move up and down, the second upper pressing component is arranged to move up and down, and the third upper pressing component is arranged to move up and down; the first lower supporting component is at a supporting height which is flush with the second lower supporting component at a high rising point position, the front side of the third clamping unit is further provided with a material guide roller group, and a bath towel sterilization device is further arranged between the unwinding material feeding device and the conveying and cutting device.

[0011] For example, the cutting component adopts an ultrasonic material cutting tool. For example, the ultrasonic material cutting tool comprises a rolling knife and an ultrasonic head, the rolling knife and the ultrasonic head are in corresponding cooperation in up and down direction, and the ultrasonic material cutting tool is arranged on the transverse cutting support.

[0012] For another example, the transverse cutting support comprises an upper transverse support and a lower transverse support, the upper transverse support and the lower transverse support are arranged to move transversely left and right in synchronization, the rolling knife and the ultrasonic head are arranged on the upper transverse support and the lower transverse support respectively, the rolling knife and the ultrasonic head are arranged in abutting cutting cooperation, the rolling knife is further connected with a rolling driving component, and the rolling driving component is connected with the transverse cutting support; the circumferential edge of the rolling knife is further provided with a raised blade edge ring, the transverse cutting support is in transmission connection with the transverse cutting driving device; the rolling knife is arranged to move up and down on the transverse cutting support, the upper transverse support is provided with a lifting frame, the lifting frame and the upper transverse support are further provided with a blade lifting driving device, and the rolling knife and the rolling driving component are connected with the lifting frame.

[0013] In addition, the taking and placing clamp comprises an upper clamping jaw and a lower clamping jaw which are opened and closed in cooperation in up and down direction, the upper clamping jaw and the lower clamping jaw are arranged in at least two pairs in transverse direction, the taking and placing clamp is arranged on the longitudinal support, the longitudinal support is arranged in cooperation on the longitudinal guide rail, and the longitudinal support is in transmission connection with the longitudinal driving motor.

[0014] For example, the longitudinal moving support includes a cross beam and a front arm connected to the cross beam, the cross beam is arranged on the longitudinal guide rail, the taking and placing clamp is arranged on the lifting plate, the taking and placing clamp is arranged on the longitudinal moving support through the lifting plate, the lifting plate is connected to the front arm, the taking and placing lifting driving device is arranged between the longitudinal moving support and the lifting plate, the taking and placing lifting driving device is in transmission connection with the lifting plate, the taking and placing lifting driving device is connected to the front arm, the lower clamping jaw is arranged on the lifting plate, and the upper clamping jaw is connected to the lifting plate through the lifting clamping driving device.

[0015] In addition, the material pulling mechanism further includes a material supporting conveying belt, the material supporting conveying belt is arranged at the rear side of the first clamping unit and below the taking and placing clamp; the taking and placing clamp material moving and transferring speed is matched with the feeding speed of the material supporting conveying belt; for example, the bath towel middle folding device adopts a three-fold device for alternately folding the bath towels left and right to the middle; the three-fold device includes a left material folding mechanism, a right material folding mechanism, a suspended folding lining blocking part and a bath towel laying conveying mechanism, the bath towel laying conveying mechanism includes front-to-rear arranged left, middle and right conveying belts, the middle conveying belt is located between the left and right conveying belts, the suspended folding lining blocking part is arranged above the middle conveying belt, the left material folding mechanism includes a left material folding part, the left material folding part is arranged in lifting and left-right moving modes, a left side channel is left between the left and middle conveying belts for the lifting of the left material folding part, and the right material folding mechanism includes a right material folding part, the right material folding part is arranged in lifting and left-right moving modes, and a right side channel is left between the right and middle conveying belts for the lifting of the right material folding part.

[0016] In addition, the front end of the suspended folding lining blocking part is connected to the supporting part, and the rear end of the suspended folding lining blocking part is a free output end; the left material folding part includes a left material folding rod, and the left material folding part is further connected to a first lifting support arranged on a first transverse moving support; the right material folding part includes a right material folding rod, and the right material folding part is further connected to a second lifting support arranged on a second transverse moving support.

[0017] The left, middle and right conveying belts are arranged in synchronous intermittent feeding modes; the suspended folding lining blocking part includes left and right suspended plates, the left and / or right suspended plates are arranged in left-right position adjusting modes, and the left and / or right suspended plates are arranged in left-right position adjusting modes on the supporting part; the front part of the suspended folding lining blocking part has a material guiding part; a matching distance is left between the suspended folding lining blocking part and the middle conveying belt below; the left side of the suspended folding lining blocking part corresponds to the left side of the middle conveying belt in up-down modes, and the right side of the suspended folding lining blocking part corresponds to the right side of the middle conveying belt in up-down modes.

[0018] For example, the tri-fold device further comprises a left support and a right support, the middle conveyor belt comprises a middle left conveying belt and a middle right conveying belt, the left conveying belt and the middle left conveying belt are arranged on the left support, the left side channel is located between the left conveying belt and the middle left conveying belt, the right conveying belt and the middle right conveying belt are arranged on the right support, the right side channel is located between the right conveying belt and the middle right conveying belt, the left support is arranged on the transverse track, the right support is arranged on the transverse track, and the left support and the right support are further connected to the transverse displacement transmission component.

[0019] The intermediate material supporting frame is further arranged between the left support and the right support, the left driving shaft is arranged on the left support and transversely, the left driving shaft is in transmission connection with the left conveying belt and the middle left conveying belt, the right driving shaft is arranged on the right support and transversely, the right driving shaft is in transmission connection with the right conveying belt and the middle right conveying belt, the left input spur gear is further arranged on the left driving shaft, the right input spur gear is further arranged on the right driving shaft, the left driving shaft and the right driving shaft are further provided with a driving main shaft, the driving main shaft is arranged transversely, the driving main shaft is in transmission connection with the conveying main motor, the left output spur gear and the right output spur gear are arranged on the driving main shaft, the left input spur gear is in meshing transmission connection with the left output spur gear and can be relatively transversely displaced, and the right input spur gear is in meshing transmission connection with the right output spur gear and can be relatively transversely displaced.

[0020] For example, the first lifting support and the first transverse displacement support are provided with a first lifting driving cylinder, the second lifting support and the second transverse displacement support are provided with a second lifting driving cylinder, the first transverse displacement support is in transmission connection with a first transverse displacement driving motor, the first transverse displacement driving motor is in transmission connection with the first transverse displacement support through a first belt, the second transverse displacement support is in transmission connection with a second transverse displacement driving motor, the second transverse displacement driving motor is in transmission connection with the second transverse displacement support through a second belt, the first lifting support comprises a first transverse arm, the left material folding component is connected to the right end of the first transverse arm, and the first transverse arm is located on the front side and / or the rear side of the left conveying belt, the second lifting support comprises a second transverse arm, the right material folding component is connected to the left end of the second transverse arm, and the second transverse arm is located on the front side and / or the rear side of the right conveying belt.

[0021] The utility model discloses beneficial effect for, this bath towel folding equipment can be with bath towel continuous roll material pay-off output through the conveying cutting device cooperation cutting and conveying, can cooperate with the operation of bath towel continuous roll material, can smoothly cut out one piece of bath towel unit and convey to the folding procedure downstream, make bath towel unit carry out in turn to the middle folding and front and back folding. BRIEF DESCRIPTION OF DRAWINGS

[0022] The embodiments and examples of the utility model will be described below in combination with the drawings.

[0023] Figure 1 It is the side view of bath towel folding equipment in the utility model. Figure 2 It is Figure 1 The perspective view. Figure 3 It is Figure 2 The perspective view of another angle.

[0024] Figure 4 It is the embodiment schematic view of bath towel front and back folding device of bath towel folding equipment in the utility model.

[0025] Figure 5 It is the overhead structure schematic view of bath towel pay-off feeding device in the utility model.

[0026] Figure 6 It is Figure 5 The front view. Figure 7 It is Figure 6 The perspective structure schematic view.

[0027] Figure 8 It is Figure 7 The schematic view after hiding some structures.

[0028] Figure 9 It is Figure 8 The structure schematic view of another angle.

[0029] Figure 10 It is the perspective structure schematic view of bath towel conveying cutting device in the utility model.

[0030] Figure 11 It is Figure 10 The structure schematic view of another angle, and hide part structure. Figure 12 It isFigure 11 Enlarged view of the middle A.

[0031] Figure 13 For Figure 10 Another angle structure schematic diagram, intercept a part.

[0032] Figure 14 For Figure 13 Another angle structure schematic diagram, intercept a part.

[0033] Figure 15 For Figure 13 Side view, intercept a part.

[0034] Figure 16 For the three folding device of the towel left and right alternately to the middle folding in the utility model is the three-dimensional structure schematic diagram.

[0035] Figure 17 For Figure 16 Another angle of the three-dimensional structure schematic diagram. Figure 18 For Figure 17 Another angle of the three-dimensional structure schematic diagram.

[0036] In the figure:

[0037] 1, pay-off feeding device;10, rack;102, guide roller;100, roll material;11, pay-off mechanism;112, lifting and placing swing driving device;113, swing support shaft;114, lifting and placing driving cylinder;12, pay-off feeding component;121, roll support;122, roll dragging material conveying belt;123, belt body running driving device;124, first transmission wheel;125, second transmission wheel;126, roll supporting auxiliary idler;127, main shaft;128, pay-off driving motor;129, second bearing;1211, side frame;13, swing stable support structure;131, first sliding support block;132, connecting support shaft;133, second sliding support block;134, lifting guide rail;135, linear guide rail;136, first bearing;14, pay-off support swing arm;141, swing arm body;142, connecting component;143, protrusion;144, reel support plane;15, reel pay-off position locking device;151, locking seat;152, movable latch;153, lock opening;16, pay-off reel;161, shaft body;162, bearing sleeve;163, reel bearing;17, setting separation state switching device;171, switching retaining cylinder;18, base;181, transverse guide rail;182, transverse correction driving device;

[0038] 3, cutting-off device; 31, cutting-off mechanism; 312, rolling cutter; 313, ultrasonic head; 314, transverse cutting support; 3121, rolling driving part; 3122, protruding blade ring; 3141, upper transverse support; 3142, lower transverse support; 3143, lifting frame; 3144, cutter lifting driving device; 315, transverse cutting driving device; 3151, driving shaft; 3152, driven shaft; 32, material pulling mechanism; 321, taking and placing clamp; 322, upper clamp jaw; 323, lower clamp jaw; 324, longitudinal support; 325, longitudinal guide rail; 326, longitudinal driving motor; 3241, crossbeam; 3242, front arm; 3243, lifting plate; 3244, taking and placing lifting driving device; 3245, lifting clamping driving device; 327, material supporting conveyor belt; 33, clamping mechanism; 34, first clamping unit; 341, first upper pressing material part; 342, first lower material supporting part; 35, second clamping unit; 351, second upper pressing material part; 352, second lower material supporting part; 353, front and back moving driving device; 354, material taking gap; 36, third clamping unit; 361, third upper pressing material part; 362, third lower material supporting part; 37, material guiding roller group;

[0039] 2, bath towel folding device; 21, left folding mechanism; 211, left folding part; 2111, left folding rod; 212, first lifting support; 213, first transverse support; 214, first lifting driving cylinder; 215, first transverse driving motor; 216, first belt; 217, first transverse arm; 22, right folding mechanism; 221, right folding part; 2211, right folding rod; 222, second lifting support; 223, second transverse support; 224, second lifting driving cylinder; 225, second transverse driving motor; 226, second belt; 227, second transverse arm; 23, suspended folding lining blocking part; 231, supporting part; 232, left suspended plate; 233, right suspended plate; 24, bath towel laying conveying mechanism; 241, left conveying belt; 242, middle conveying belt; 243, right conveying belt; 2421, middle left conveying belt; 2422, middle right conveying belt; 251, left side channel; 252, right side channel; 253, left support; 254, right support; 255, transverse rail; 256, transverse position adjusting transmission part; 257, middle material supporting frame; 2561, bidirectional screw rod; 26, conveying main motor; 261, driving main shaft; 262, left driving shaft; 263, right driving shaft; 264, left input spur gear; 265, right input spur gear; 266, left output spur gear; 267, right output spur gear;

[0040] 4, towel front and rear folding device; 41, front conveying belt; 42, rear conveying belt; 43, vertical folding channel; 431, up and down lifting inserting plate; 44, lower conveying belt; 45, longitudinal folding channel; 451, reciprocating longitudinal inserting plate. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. 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 labor fall within the scope of the present application.

[0042] Referring to the drawings, the towel folding device in the embodiments of the present embodiment includes a unwinding feeding device 1, a conveying and cutting device 3, a towel middle folding device 2, a towel front and rear folding device 4, and a packaging mechanism.

[0043] The unwinding feeding device 1 includes a unwinding mechanism 11 on a rack 10. The towel continuous roll material (i.e. roll material 100, referred to as roll material 100) is placed in the unwinding mechanism 11 for unwinding and feeding.

[0044] The conveying and cutting device 3 includes a cutting mechanism 31, a pulling mechanism 32, and a clamping mechanism 33.

[0045] The cutting mechanism 31 includes a cutting part for cutting the towel material (referred to as material). The cutting part cooperates with the unwound and fed material to cut the continuous roll towel material. The head of the continuous roll towel material is cut off to form a single towel unit. After cutting, the break of the continuous roll towel material is the cut material head.

[0046] The pulling mechanism 32 includes a pick-and-place clamp 321 for the cut material head. The pick-and-place clamp 321 is arranged to move forward and backward. The pick-and-place clamp 321 is used to clamp and move the cut material head (of the continuous roll towel material), so as to cooperate with pulling the continuous roll towel material forward, so that the material can smoothly advance and pass through the clamping mechanism 33 and the cutting mechanism 31, and finally the pick-and-place clamp 321 can release the material.

[0047] The clamping mechanism 33 includes a first clamping unit 34 and a second clamping unit 35. The second clamping unit 35 is arranged in front of and behind the first clamping unit 34. The cutting part of the cutting mechanism 31 is arranged between the first clamping unit 34 and the second clamping unit 35.

[0048] The working principle of the conveying and cutting device 3 is that the taking and placing clamp 321321 clamps the continuous roll of bath towel material (from front to back) and pulls it forward to pass through the second clamping and placing unit 35, the cutting component, and the first clamping and placing unit 34. After the first clamping and placing unit 34 and the second clamping and placing unit 35 clamp the continuous roll of bath towel material, the continuous roll of bath towel material is in a stable and flat state at the cutting area, ensuring smooth cutting and regular cutting edges. Then, the cutting component cooperates with the first clamping and placing unit 34 and the second clamping and placing unit 35 to cut the continuous roll of bath towel material, cutting the head of the continuous roll of bath towel material to form a bath towel unit. The cutting component retreats to make way, and then the first clamping and placing unit 34 and the second clamping and placing unit 35 release the bath towel material. After that, the bath towel unit can be conveyed away by other structures (such as the material supporting conveying belt 327) or pulled forward by the pulling mechanism 32 to release, and then the taking and placing clamp 321 of the pulling mechanism 32 moves forward again to clamp the material head to pull the continuous roll of bath towel material backward and forward. The continuous roll of bath towel material is pulled forward again (from front to back) to pass through the second clamping and placing unit 35, the cutting component, and the first clamping and placing unit 34, and the next bath towel unit cutting operation is performed.

[0049] The output side of the unwinding and feeding device 1 is connected with the input side of the conveying and cutting device 3, that is, the continuous roll of bath towel material is output from the unwinding and feeding device 1 and then enters the conveying and cutting device 3, which can be guided by the guide roller 102.

[0050] The output side of the conveying and cutting device 3 is connected with the input side of the bath towel middle folding device 2, that is, the bath towel unit is output from the conveying and cutting device 3 and then enters the bath towel middle folding device 2, which can be connected by the conveying belt, such as the material supporting conveying belt 327 and the corresponding conveying belt of the bath towel laying and conveying mechanism 24. The bath towel unit is folded left and right in the bath towel middle folding device 2, such as left and right folding or three-fold folding structure with alternating left and right middle folding.

[0051] The output side of the bath towel middle folding device 2 is connected with the input side of the bath towel front and back folding device 4, that is, the bath towel unit that has been folded left and right enters the bath towel front and back folding device 4 to be folded front and back. The front and back folding is, for example, front and back folding or three-fold folding structure with alternating front and back middle folding or four-fold folding structure after front and back folding. The bath towel front and back folding device 4 is a mature technology, such as a paper towel or wet tissue folding device.

[0052] For example, in the present embodiment, the bath towel front and rear folding device 4 has a vertical folding channel 43 between the front conveying belt 41 and the rear conveying belt 42, and the inlet end of the vertical folding channel 43 is provided with an upper and lower lifting material inserting plate 431. After the bath towel is folded in half in the bath towel folding device 2, the bath towel can be input onto the front conveying belt 41 and the rear conveying belt 42 and held (e.g., in a flat lying state) for conveying. After conveying to the position and stopping, for example, the front and rear center positions of the bath towel are above the vertical folding channel 43 and stop, and then the upper and lower lifting material inserting plate 431 is lowered to insert the bath towel downward into the vertical folding channel 43, and the bath towel is folded in half (i.e., once folded front and rear). After that, the upper and lower lifting material inserting plate 431 is raised to reset. The front and rear sides of the vertical folding channel 43 are respectively the vertical belt body parts of the front conveying belt 41 and the rear conveying belt 42, which cooperate to form the vertical folding channel 43 and can even cooperate to convey the bath towel folded in half once. The lower side of the rear conveying belt 42 is further provided with a lower conveying belt 44, and the rear conveying belt 42 and the lower conveying belt 44 have a longitudinal folding channel 45. The inlet end of the longitudinal folding channel 45 is provided with a reciprocating longitudinal material inserting plate 451. After the bath towel in the vertical folding channel 43 is moved downward to the position and stops, for example, the lower half of the bath towel (which has been folded in half once) is exposed, and the upper half of the bath towel is still in the vertical folding channel 43. The reciprocating longitudinal material inserting plate 451 is moved to insert the bath towel into the longitudinal folding channel 45, and the bath towel is folded in half twice (i.e., twice folded front and rear). After that, the reciprocating longitudinal material inserting plate 451 is moved to reset. The upper and lower sides of the longitudinal folding channel 45 are respectively the longitudinal (i.e., front and rear direction) belt body parts of the rear conveying belt 42 and the lower conveying belt 44, which cooperate to form the vertical folding channel 43 and can even cooperate to convey the bath towel folded in half twice. The outlet of the vertical folding channel 43 is arranged above the inlet of the longitudinal folding channel 45. The rear conveying belt 42 can be provided with an independent power source 421 (such as a servo motor catheter, which can drive the belt to rotate forward and reverse), to ensure that the bath towel is folded and the corresponding channel cooperates to hold the folded bath towel for smooth conveying. The front conveying belt 41 and the lower conveying belt 44 can be operated in forward rotation, and can share a power source 46 (such as a servo motor, etc.). The upper and lower lifting material inserting plate 431 and the reciprocating longitudinal material inserting plate 451 can be respectively provided with motors or air cylinders as power drives to move back and forth, such as being driven by motors through eccentric wheels, connecting rods, etc. to move linearly, and cooperating to insert and fold the material. The bath towel unit folded in the bath towel front and rear folding device 4 is output.

[0053] The bath towel folding device can also be connected with a packaging machine to form a production line, which can package the folded bath towel units in bags. For example, the output side of the bath towel front and rear folding device 4 is connected with the input side of the packaging machine (such as a pillow packaging machine).

[0054] The bath towel folding device can put the bath towel continuous roll material out, cooperate with the cutting and conveying of the conveying and cutting device 3, cooperate with the operation of the bath towel continuous roll material, smoothly cut out a strip of bath towel unit and convey it to the downstream folding process, so that the bath towel unit is folded in the middle and front and back in turn. The bath towel conveying and cutting device 3 can smoothly receive the bath towel material output by the (intermittent) unwinding and feeding device 1, can cooperate with the pulling and advancing of the bath towel material (in the downstream direction) to the position and cooperate with the cutting of the continuous roll bath towel material to form a bath towel unit, can further pull and advance the bath towel material to the position and cut it after cutting, can meet the conveying and cutting needs of materials such as bath towels, and can ensure that the continuous roll material after cutting is continuously pulled and conveyed and advanced for cutting cooperation, so that the bath towel can be smoothly conveyed and advanced before and after the cutting operation.

[0055] The following optimizations or further explanations can be made on the basis of the above embodiments respectively.

[0056] The unwinding mechanism 11 is provided with an unwinding feeding component 12, and the winding material 100 is unwound and fed out by the unwinding feeding component 12. The unwinding feeding component 12 comprises a winding support 121 and a winding dragging conveying belt 122, the winding dragging conveying belt 122 is arranged on the winding support 121 and is supported by the winding support 121, so that the winding dragging conveying belt 122 runs and the winding support 121 drives the winding dragging conveying belt 122 to switch position to wind, so that the winding dragging conveying belt 122 can be set on the outside of the winding material 100. The winding dragging conveying belt 122 is further connected with a belt body winding driving device 123, which drives the winding dragging conveying belt 122 to wind and run, and cooperates with the unwinding output feeding. The winding dragging conveying belt 122 can be set on the outside of the winding material 100, and during the winding operation, the winding dragging conveying belt 122 drags the winding material 100 to rotate for unwinding feeding. The working principle is as follows: after the winding material 100 is placed in position, unwinding output feeding work can be carried out, the winding support 121 drives the winding dragging conveying belt 122 on it to wind to the winding material 100, the winding dragging conveying belt 122 is set on the outside of the winding material 100, the winding dragging conveying belt 122 (under the driving action of the belt body winding driving device 123) winds and runs, the winding dragging conveying belt 122 drags the winding material 100 to rotate and output, and the unwinding is stably and efficiently and smoothly completed. In addition, the winding dragging conveying belt 122 and the winding material 100 have a large contact surface for dragging (contact friction dragging the winding material 100) to rotate and output, and are set on the outside of the winding material 100. The winding material 100 is slightly compressed and deformed by the setting pressure, and the contact surface is further increased. The winding material 100 is not easy to stretch and break during rotation and output. The winding feeding component does not affect the replacement of the winding material 100, is convenient for winding replacement, can adapt to more different specifications of winding diameter materials, avoids the problem of stretching or breaking caused by directly pulling the winding material 100, can smoothly rotate the winding material 100 to unwind, is not easy to stretch and deform the winding material 100, and the material is not easy to break.

[0057] In addition, the unwinding mechanism 11 for placing the roll material 100 is more, and is relatively mature. Usually, the roll material 100 (including the core tube) is placed on the unwinding shaft 16 (i.e. the winding shaft, such as the type of air expansion shaft) to unwind. For example, the unwinding mechanism 11 includes an unwinding support swing arm 14, the unwinding support swing arm 14 is drivingly connected with a lifting and lowering swing driving device 112, the unwinding support swing arm 14 is provided with a swing support pivot shaft 113 between the frame 10, the unwinding support swing arm 14 is connected with the swing support pivot shaft 113, the unwinding support swing arm 14 can swing (lift and lower) around the swing support pivot shaft 113 on the frame 10, and the swing (lift and lower) is driven by the lifting and lowering swing driving device 112. The unwinding support swing arm 14 is lowered (lowered) for feeding (replacing the new roll material 100), and the unwinding support swing arm 14 is raised for lifting and supporting the roll material 100 to cooperate with subsequent unwinding; wherein the unwinding support swing arm 14 is provided with the unwinding shaft 16 for the roll material 100, and can support the unwinding shaft 16.

[0058] For example, the lifting and lowering swing driving device 112 includes a lifting and lowering driving cylinder 114, the lifting and lowering swing driving device 112 is connected to the rear of the unwinding support swing arm 14, the swing support pivot shaft 113 is connected to the middle of the unwinding support swing arm 14, the structure is more reasonable, and is relatively mature, and the front space position is also convenient for roll material 100 replacement operation; the lifting and lowering swing driving device 112 is installed on the frame 10, such as the lifting and lowering driving cylinder 114 is hinged to the unwinding support swing arm 14 at one end, and is hinged to the frame 10 at the other end. It can be further optimized, and the front outer side of the unwinding support swing arm 14 is also connected with a swing stable support structure 13, so that the unwinding support swing arm 14 is stably supported during swinging and runs more stably. For example, the swing stable support structure 13 includes a first sliding support block 131, a connecting support pivot shaft 132 and a second sliding support block 133; the first sliding support block 131 is arranged on the lifting guide rail 134, and can slide up and down on the lifting guide rail 134; the first sliding support block 131 and the second sliding support block 133 are connected through the connecting support pivot shaft 132, that is, the first sliding support block 131 and the second sliding support block 133 are connected and can rotate relative to each other; the second sliding support block 133 is arranged on the linear guide rail 135 of the unwinding support swing arm 14, and can slide on the linear guide rail 135; the swing stable support structure 13 can further stabilize the operation of the unwinding support swing arm 14 during swinging (even unwinding), and avoid position shaking, such as left and right shaking.

[0059] The first sliding support block 131 and the second sliding support block 133 are provided with the first bearing 136 between at least one of the first sliding support block 131 and the coupling support rotating shaft 132, such as the first sliding support block 131 fixedly provided with the coupling support rotating shaft 132 (which can be an integrated structure or a split connection structure), and the second sliding support block 133 provided with the first bearing 136 connected with the coupling support rotating shaft 132. The linear guide rail 135 is arranged on the outer side of the unwinding support swing arm 14, such as the left and right outer sides each provided with the linear guide rail 135 and the corresponding structure.

[0060] In addition, the unwinding support swing arm 14 is further optimized to include left and right swing arm bodies 141 connected through a coupling component 142 (such as a coupling plate); the front end of the swing arm body 141 is further provided with a protrusion 143, which can be used to limit and block the unwinding shaft 16 to avoid the unwinding shaft 16 from rolling off, falling off, and separating during the lifting of the unwinding support swing arm 14, and can also cooperate with the support of the unwinding shaft 16 and the lifting of the roll 100; the swing arm body 141 has a shaft support plane 144, the protrusion 143 is located at the front end of the shaft support plane 144, and the shaft support plane 144 is arranged at the upper edge of the swing arm body 141, which can support the movement of the unwinding shaft 16 and cooperate with the placement of the roll 100.

[0061] The unwinding mechanism 11 further includes a shaft unwinding position locking device 15 corresponding to the unwinding support swing arm 14 in the lifted position, which is used to move the unwinding shaft 16 to the unwinding position after the unwinding support swing arm 14 is lifted to the position, and then locked by the shaft unwinding position locking device 15 to avoid the position change of the unwinding shaft 16 affecting the unwinding. The shaft unwinding position locking device 15 is arranged on the rack 10, which can cooperate with the support of the unwinding shaft 16, and is more stable after being locked, and the structure of the unwinding support swing arm 14 is relatively simple, which also helps to reduce the support burden of the unwinding support swing arm 14.

[0062] For example, the reel unwinding position locking device 15 comprises a locking seat 151 and a movable lock 152, the locking seat 151 is provided with a locking opening 153 for placing the unwinding reel 16, and the movable lock 152 is arranged at the entrance of the locking opening 153. The operation mode of the movable lock 152 can be rotating or straight moving, and can be manually or pneumatically or electrically operated. Among them, the locking opening 153 is arranged forward, and the reel supporting plane 144 on the unwinding support swing arm 14 in the lifted position is matched and connected with the locking opening 153, so that the unwinding reel 16 (such as bearing sleeve 162 with grooved outer ring) can be moved (such as rolled) into the locking opening 153, and the operation is more convenient. The unwinding mechanism 11 is provided with an unwinding reel 16, which comprises a shaft body 161 (such as a gas swelling shaft body 161) and a bearing sleeve 162, the bearing sleeve 162 is arranged at the end of the shaft body 161, and the shaft body 161 and the bearing sleeve 162 have a reel shaft bearing 163, and the bearing sleeve 162 is matched and arranged with the reel unwinding position locking device 15, that is, the bearing sleeve 162 of the unwinding reel 16 will be locked by the reel unwinding position locking device 15, and the shaft body 161 of the unwinding reel 16 can rotate to cooperate with the unwinding, and when the material 100 on the shaft body 161 is pulled, the shaft body 161 rotates together to cooperate with the unwinding of the material 100. Other structural forms of the unwinding reel 16 can also be used.

[0063] Among them, the material pulling and conveying belt 122 (which can be a belt) is installed on the winding support 121 and operates in the following manner: for example, the winding support 121 is provided with at least a first transmission wheel 124 and a second transmission wheel 125, the material pulling and conveying belt 122 is arranged around the first transmission wheel 124 and the second transmission wheel 125, the first transmission wheel 124 is in transmission connection with the belt body winding driving device 123, and can drive the material pulling and conveying belt to rotate and pull the material unwinding.

[0064] Further optimization, the winding support 121 is also provided with a winding auxiliary idler wheel 126, which is located on the inner side of the winding material pulling and conveying belt 122, that is, the winding auxiliary idler wheel 126 can assist in more stably abutting the material 100 and more stably pulling the material to rotate.

[0065] In addition, the winding support 121 is also in transmission connection with an abutting separation state switching device 17, that is, the winding support 121 can be switched between the abutting state and the separation state, in the abutting state, the winding material pulling and conveying belt 122 on the winding support 121 will abut and contact with the material 100, and in the separation state, the winding material pulling and conveying belt 122 on the winding support 121 will be separated from the material 100 (to facilitate the winding replacement operation). The abutting and separation state switching mode can be straight line moving switching or rotating moving switching.

[0066] For example, the main rotating shaft 127 is arranged on the rack 10, the first transmission wheel 124 is arranged on the main rotating shaft 127, the first transmission wheel 124 is in transmission connection with the main rotating shaft 127, the first transmission wheel 124 is driven to rotate by the main rotating shaft 127, and the winding dragging material conveying belt 122 is driven to run around the first transmission wheel 124 and the second transmission wheel 125; the main rotating shaft 127 is in transmission connection with the unwinding driving motor 128 (such as a servo motor), the unwinding driving motor 128 is installed on the rack 10, the belt body running driving device 123 includes the main rotating shaft 127 and the unwinding driving motor 128, the main rotating shaft 127 is driven to rotate by the unwinding driving motor 128, so as to drive the winding dragging material conveying belt 122 to run around; the winding support 121 is connected to the main rotating shaft 127 through the second bearing 129 (for example, the left and right side frames 1211 of the winding support 121 are connected to the main rotating shaft 127 through the second bearing 129), the winding support 121 can rotate on the main rotating shaft 127, and the winding support 121 is arranged in a swing structure with the main rotating shaft 127 as an axis; the winding support 121 and the rack 10 are provided with the winding separation state switching device 17, the winding support 121 is driven by the winding separation state switching device 17 to switch the state on the rack 10 in a swing (rotary) mode, in the structure, the winding separation state switching device 17 is combined with the belt body running driving device 123, the state switching load is relatively low, and the operation is relatively stable. For example, the winding separation state switching device 17 includes the switching and holding cylinder 171, the switching and holding cylinder 171 is hinged to the rack 10, the switching and holding cylinder 171 is in transmission connection with the winding support, the switching and holding cylinder 171 can not only drive the winding support to switch the device on the rack 10, but also can keep the state after switching, for example, the winding state can be kept during the process that the winding diameter of the winding material 100 is continuously reduced (the gas in the cylinder can be enhanced).

[0067] In addition, the rack 10 is also provided with the base 18, the transverse guide rail 181 is arranged on the base 18, the rack 10 is arranged on the transverse guide rail 181, the rack 10 can be adjusted in position by moving transversely on the base 18, the rack 10 and the base 18 are also provided with the transverse movement and deviation correction driving device 182, the rack 10 is driven by the transverse movement and deviation correction driving device 182 to move transversely (that is, transversely) on the base 18 to correct the deviation, the unwinding mechanism 11 and the unwinding feeding component 12 on the rack 10 move transversely together, the transverse movement and deviation correction driving device 182 includes a deviation correction motor (such as a servo motor or an electric cylinder), and is a prerequisite and basis for realizing automatic deviation correction operation. The guide roller 102 can also be arranged on the rack 10 according to requirements, so that the winding material 100 can be guided by the guide roller 102 after being unwound and output.

[0068] For example, the first clamping unit 34 includes a first upper pressing component 341 and a first lower supporting component 342 which are opened and closed in cooperation. When the first upper pressing component 341 and the first lower supporting component 342 are closed, the continuous roll of bath towel material can be clamped, and when the first upper pressing component 341 and the first lower supporting component 342 are opened, the continuous roll of bath towel material is released. The second clamping unit 35 includes a second upper pressing component 351 and a second lower supporting component 352 which are opened and closed in cooperation. When the second upper pressing component 351 and the second lower supporting component 352 are closed, the continuous roll of bath towel material can be clamped, and when the second upper pressing component 351 and the second lower supporting component 352 are opened, the continuous roll of bath towel material is released.

[0069] In addition, the material clamping mechanism 33 can further include a third clamping unit 36 which is arranged at the front side of the second clamping unit 35. The second clamping unit 35 is located between the first clamping unit 34 and the third clamping unit 36. The second lower supporting component 352 is arranged to move forward and backward. The second lower supporting component 352 is in transmission connection with a forward and backward movement driving device 353 (such as a pneumatic cylinder or a motor). The second lower supporting component 352 is driven by the forward and backward movement driving device 353 to move forward and backward. In this structure, the third clamping unit 36 is arranged to clamp the material at the upstream side and the second lower supporting component 352 is arranged to move forward and backward. When the second lower supporting component 352 moves forward, it is separated from the first lower supporting component 342 by a suitable distance to allow the cutting component to operate. The second lower supporting component 352 can cooperate with the second upper pressing component 351 above to clamp the material. When the second lower supporting component 352 moves backward (towards the downstream direction), it can hold the cut material head of the continuous roll of material to avoid the cut material head from drooping and affecting the clamping operation of the taking and placing clamp 321. The stability of the taking and placing clamp 321 in clamping the cut material head is improved. The third clamping unit 36 can clamp the material before the second lower supporting component 352 moves backward to avoid the dislocation of the continuous roll of material. When the cut material head is clamped by the taking and placing clamp 321 or the second lower supporting component 352 moves backward to the position, the third clamping unit 36 can release the material. For example, the third clamping unit 36 includes a third upper pressing component 361 and a third lower supporting component 362 which are opened and closed in cooperation. When the third upper pressing component 361 and the third lower supporting component 362 are closed, the continuous roll of bath towel material can be clamped, and when the third upper pressing component 361 and the third lower supporting component 362 are opened, the continuous roll of bath towel material is released.

[0070] Further optimization, the second lower supporting component 352 is further provided with a material taking gap 354. The taking and placing clamp 321 is arranged corresponding to the material taking gap 354. The material taking gap 354 is located at the trailing edge of the second lower supporting component 352. The presence of the material taking gap 354 allows the second lower supporting component 352 to completely hold the cut material head without drooping. The taking and placing clamp 321 can clamp the cut material head part of the continuous roll of material on the second lower supporting component 352 from the material taking gap 354 to ensure smooth and stable clamping operation.

[0071] For example, the first upper pressing material component 341 is arranged to be lifted, the first lower supporting material component 342 is arranged to be lifted, the second upper pressing material component 351 is arranged to be lifted, the third upper pressing material component 361 is arranged to be lifted, and the lifting can be driven by corresponding cylinders or motors, etc. The first upper pressing material component 341 and the second upper pressing material component 351 can be respectively configured to be driven to lift or be driven to lift together. Corresponding guide members (such as guide rails) can be configured to cooperate with the lifting or transverse movement or forward and backward movement, thereby enhancing stability. In addition, the first lower supporting material component 342 is arranged to be lifted to a position at which the first lower supporting material component 342 and the second lower supporting material component 352 are at the same supporting height, and the corresponding continuous roll material can be supported in a flat state, thereby facilitating cutting. In addition, the front side of the third clamping unit 36 is further provided with a material guide roller set 37 (corresponding guide rollers 102 are arranged as needed to guide the continuous roll material), which also has the function of guiding and flattening the material and has the function of smoothly and stably guiding the continuous roll material after unwinding to the bath towel conveying and cutting device 3. The bath towel sterilization device is further arranged between the unwinding and feeding device 1 and the conveying and cutting device 3, and the bath towel sterilization device includes an ultraviolet lamp sterilization component, which can be arranged to irradiate the outside of the corresponding guide roller 102.

[0072] The cutting component usually adopts corresponding cutters (such as upper and lower transverse cutters that are folded and separated). For example, the cutting component adopts an ultrasonic material cutting device, which has good cutting effect and can be suitable for bath towel materials, and the cutting edge after cutting is neat and not easy to have a thread end. For example, the ultrasonic material cutting device includes a rolling cutter 312 and an ultrasonic head 313, the rolling cutter 312 and the ultrasonic head 313 are arranged in corresponding upper and lower positions, and the ultrasonic material cutting device is arranged on a transverse cutting support 314, that is, the rolling cutter 312 and the ultrasonic head 313 move back and forth transversely with the transverse cutting support 314, and one transverse movement is performed once to cut the material.

[0073] The horizontal cutting support 314 is in transmission connection with the horizontal cutting driving device 315, and is driven by the horizontal cutting driving device 315 (such as a motor or a cylinder) to move horizontally back and forth (i.e. horizontally). For example, the horizontal cutting support 314 includes an upper horizontal support 3141 and a lower horizontal support 3142, and the upper horizontal support 3141 and the lower horizontal support 3142 are synchronously arranged to move horizontally left and right. The upper horizontal support 3141 and the lower horizontal support 3142 can be provided with two power sources or share a power source to move horizontally. For example, the horizontal cutting driving device 315 includes a motor that drives the upper horizontal support 3141 and the lower horizontal support 3142 to move horizontally through a driving shaft 3151, a driven shaft 3152, and a synchronous belt structure. The rolling knife 312 and the ultrasonic head 313 are separately arranged on the upper horizontal support 3141 and the lower horizontal support 3142, and are reasonably arranged for assembly. The rolling knife 312 and the ultrasonic head 313 abut and cut each other. The rolling knife 312 can roll and cut each other, and the rolling knife 312 can roll and cut each other. The rolling knife 312 is further in transmission connection with a rolling driving part 3121 (such as a motor) to actively drive the rolling knife 312 to roll and cut each other. The rolling driving part 3121 is connected to the horizontal cutting support 314 (such as the upper horizontal support 3141). The circumferential edge of the rolling knife 312 is further provided with a convex 143 blade edge ring. The convex 143 blade edge ring of the rolling knife 312 is used to roll and cut each other. The convex 143 blade edge ring can be a wave ring, so that the edge of the material port is in a wave shape. Even more, the rolling knife 312 is arranged to move up and down on the horizontal cutting support 314 to move towards the ultrasonic head 313 (i.e. towards the knife) to cut the material, and can be separated from the ultrasonic head 313 to avoid long-term contact and affect the service life. For example, the upper horizontal support 3141 is provided with a lifting frame 3143, and the lifting frame 3143 and the upper horizontal support 3141 are further provided with a knife approaching lifting driving device 3144 (such as a motor or a cylinder). The lifting frame 3143 is driven by the knife approaching lifting driving device 3144 to move up and down on the upper horizontal support 3141, so that the rolling knife 312 and the ultrasonic head 313 are moved towards each other and separated. The rolling knife 312 and the rolling driving part 3121 are connected to the lifting frame 3143, and the rolling knife 312 and the rolling driving part 3121 move up and down on the upper horizontal support 3141 with the lifting frame 3143.

[0074] The taking and placing clamp 321 can adopt electric or pneumatic finger clamps, etc. For example, the taking and placing clamp 321 includes an upper clamp jaw 322 and a lower clamp jaw 323, which are opened and closed in cooperation with each other. The opening and closing action can be driven by a motor or a pneumatic cylinder, etc. The upper clamp jaw 322 and the lower clamp jaw 323 are arranged in at least two pairs in the transverse direction, that is, multiple pairs of upper clamp jaws 322 and lower clamp jaws 323 can stably clamp the material head of the continuous material and move stably to pull the material forward. The taking and placing clamp 321 is arranged on the longitudinal moving support 324, which is arranged on the longitudinal guide rail 325 in cooperation. The longitudinal moving support 324 is in transmission connection with the longitudinal moving drive motor 326, which drives the taking and placing clamp 321 to move longitudinally along the longitudinal guide rail 325 in cooperation with the longitudinal moving support 324.

[0075] For example, the longitudinal moving support 324 includes a cross beam 3241 and a front extending arm 3242, which is connected to the cross beam 3241. That is, the front extending arm 3242 can move longitudinally (i.e., forward and backward) with the cross beam 3241 and extend forward relative to the cross beam 3241, so as to facilitate the taking and placing clamp 321 to clamp the material head of the material through the first clamping and placing unit 34 in the separated and released state. The cross beam 3241 is arranged on the longitudinal guide rail 325, and the longitudinal movement is relatively stable. The taking and placing clamp 321 is arranged on the lifting plate 3243. The taking and placing clamp 321 is arranged on the longitudinal moving support 324 through the lifting plate 3243, that is, the taking and placing clamp 321 can move up and down with the lifting plate 3243 and move longitudinally with the longitudinal moving support 324. For example, the lifting plate 3243 is connected to the front extending arm 3242 (of the longitudinal moving support 324). The longitudinal moving support 324 and the lifting plate 3243 are provided with a taking and placing lifting driving device 3244 (such as a pneumatic cylinder or a motor, etc.), which is in transmission connection with the lifting plate 3243. The taking and placing lifting driving device 3244 drives the lifting plate 3243 to move up and down on the longitudinal moving support 324, thereby driving the taking and placing clamp 321 to move up and down. For example, the taking and placing lifting driving device 3244 is connected to the front extending arm 3242. The lower clamp jaw 323 is arranged on the lifting plate 3243, and the upper clamp jaw 322 is connected to the lifting plate 3243 through the lifting clamping and placing driving device 3245 (such as a pneumatic cylinder or a motor, etc.). The upper clamp jaw 322 can move up and down to open and close the clamping and placing action relative to the lower clamp jaw 323 on the lifting plate 3243.

[0076] In addition, the pulling mechanism 32 can also be optimized to include a material supporting conveyor belt 327 arranged at the rear side (i.e. the output side, the downstream side) of the first clamping unit 34, so as to cooperate with the receiving and conveying of the material clamped by the material taking and placing clamp 321 to support the material in a laid state during the clamping and pulling process, facilitate the subsequent towel unit to be directly supported and output by the material supporting conveyor belt 327, and facilitate the folding operation of the subsequent equipment, which is more stable and efficient. The material supporting conveyor belt 327 is arranged below the material taking and placing clamp 321 for smooth receiving. The material taking and placing speed of the material taking and placing clamp 321 is matched with (e.g. synchronized with or greater than) the feeding speed of the material supporting conveyor belt 327 to avoid the towel roll material from being wrinkled, arched, and the like, and to be relatively flat.

[0077] The towel folding device 2 can be a three-fold device that alternately folds the towels left and right.

[0078] In the embodiment, the three-fold device that alternately folds the towels left and right includes a left folding mechanism 21, a right folding mechanism 22, a suspended folding lining blocking part 23, and a towel laying conveying mechanism 24. The towel laying conveying mechanism 24 includes a left conveying belt 241, a middle conveying belt 242, and a right conveying belt 243 arranged from front to back. The left, middle, and right conveying belts are arranged from front to back to cooperate with the conveying of the laid (e.g. flat) material (i.e. towel) from front to back. Generally, the left, middle, and right conveying belts are horizontally arranged from front to back.

[0079] The middle conveying belt 242 is located between the left and right conveying belts 241 and 243. The suspended folding lining blocking part 23 is arranged above the middle conveying belt 242. The suspended folding lining blocking part 23 is used to block the lining of the towel during the folding process. The folded edge of the towel is blocked from above, and the middle region of the towel is relatively fixed and not easy to move when the left and right regions of the towel are lifted upward, which makes the folding stable and smooth, and the folded edge of the towel is relatively regular.

[0080] Wherein, the left folding mechanism 21 comprises a left folding component 211, which is arranged to be lifted and moved left and right, i.e. the left folding component 211 can be lifted and moved left and right. A left side passage 251 is left between the left conveying belt 241 and the middle conveying belt 242 for the left folding component 211 to be lifted. When the left folding component 211 is lifted, it can lift the boundary between the left area and the middle area of the towel upwards, and the suspended folding lining blocking component 23 blocks the lining of the middle area of the towel. Then the left folding component 211 moves right to fold the left area of the towel to the upper side of the middle area of the towel. Then the left folding component 211 moves left to retreat and lower to the original position, waiting for the next operation.

[0081] Similarly, the right folding mechanism 22 comprises a right folding component 221, which is arranged to be lifted and moved left and right, i.e. the right folding component 221 can be lifted and moved left and right. A right side passage 252 is left between the right conveying belt 243 and the middle conveying belt 242 for the right folding component 221 to be lifted. When the right folding component 221 is lifted, it can lift the boundary between the right area and the middle area of the towel upwards, and the suspended folding lining blocking component 23 blocks the lining of the middle area of the towel. Then the right folding component 221 moves left to fold the right area of the towel to the upper side of the middle area of the towel. Then the right folding component 221 moves right to retreat and lower to the original position, waiting for the next operation.

[0082] Wherein, the left folding mechanism 21 and the right folding mechanism 22 operate alternately (in the order as required), which can fold the left and right areas of the towel to the upper side of the middle area of the towel in turn, completing the three-fold structure of the towel.

[0083] The three-fold device for folding the towel alternately to the middle, the left conveying belt 241, the middle conveying belt 242 and the right conveying belt 243 are arranged to feed from front to back, which can convey the material (i.e. the towel) from front to back. After conveying, the towel can be three-folded. After three-fold, the towel can be output by the middle conveying belt 242, and separated from the suspended folding lining blocking component 23. The combination of conveying and three-fold is more efficient. After three-fold, the towel is convenient for subsequent processing (such as folding front and back and / or bagging, etc.).

[0084] Wherein, the front end of the suspended folding lining blocking component 23 is connected with the support component 231 (such as a support horizontal rod, which can be installed on the large frame of the device), and the rear end of the suspended folding lining blocking component 23 is a free output end, which is convenient for installation and output of the towel after three-fold. The output is directly supported by the middle conveying belt 242, and is not affected by the suspended folding lining blocking component 23.

[0085] For example, the overhanging folding lining blocking part 23 comprises a left overhanging plate 232 and a right overhanging plate 233, and the left and right positions of the left overhanging plate 232 and / or the right overhanging plate 233 are adjusted, for example, the left and right positions can be adjusted by tightening or loosening the fasteners, so as to adapt to different sizes of bath towels with different three-fold requirements. For example, the left and right positions of the left overhanging plate 232 and / or the right overhanging plate 233 on the support part 231 are adjusted.

[0086] In another optimization, the front part of the overhanging folding lining blocking part 23 has a material introduction part (such as an introduction arc surface, etc.), which facilitates the introduction and cooperation of the bath towel. The overhanging folding lining blocking part 23 and the lower middle conveying belt 242 have a cooperation gap, which allows the bath towel to pass smoothly between the bath towel laying and conveying mechanism 24 (such as the conveying belt 242) and the overhanging folding lining blocking part 23, and the overhanging folding lining blocking part 23 can cooperate with the lining blocking during the folding process. The cooperation gap is usually set when the machine is adjusted or when the machine is out of the factory; even the height position of the overhanging folding lining blocking part 23 can be adjusted to adjust the cooperation gap at any time.

[0087] For example, the left side of the overhanging folding lining blocking part 23 corresponds to the left side of the middle conveying belt 242 up and down, and the right side of the overhanging folding lining blocking part 23 corresponds to the right side of the middle conveying belt 242 up and down; wherein the up and down correspondence can be aligned up and down, of course, it can also be slightly deviated, which can meet the smooth lifting and folding of the corresponding folding part. For example, the left side of the left overhanging plate 232 corresponds to the left side of the middle conveying belt 242 up and down, and the right side of the right overhanging plate 233 corresponds to the right side of the middle conveying belt 242 up and down.

[0088] Further optimization, the towel left and right alternating folding three-fold device further comprises a left support 253 and a right support 254, and the middle conveying belt 242 comprises a middle left conveying belt 2421 and a middle right conveying belt 2422; wherein the left conveying belt 241 and the middle left conveying belt 2421 are arranged on the left support 253, the left side channel 251 is located between the left conveying belt 241 and the middle left conveying belt 2421, the right conveying belt 243 and the middle right conveying belt 2422 are arranged on the right support 254, the right side channel 252 is located between the right conveying belt 243 and the middle right conveying belt 2422, the left support 253 is arranged on the transverse track 255, the right support 254 is arranged on the transverse track 255, the left conveying belt 241 and the middle left conveying belt 2421 move along the transverse direction on the transverse track 255 with the left support 253, the right conveying belt 243 and the middle right conveying belt 2422 move along the transverse direction on the transverse track 255 with the right support 254, to meet the different size three-fold requirements of towels of different width specifications. The transverse track 255 can be shared or separately arranged. In addition to directly pushing the transverse direction, the left support 253 and the right support 254 can be respectively connected to the transverse adjustment transmission part 256, and the transverse adjustment transmission part 256 drives them to move correspondingly, and the transverse adjustment transmission part 256 has many modes, for example, including a motor or a hand wheel driven screw (such as a bidirectional screw 2561) or a belt, etc. In addition, the middle material supporting frame 257 can also be arranged between the left support 253 and the right support 254, so as to support the material (towel) between the middle left conveying belt 2421 and the middle right conveying belt 2422, avoid the problem of sagging, and relatively stable operation.

[0089] For example, the left conveying belt 241, the middle conveying belt 242 and the right conveying belt 243 are synchronously and intermittently fed. Corresponding power sources (such as motors, for example, servo motors, etc.) can be arranged respectively, or a common power source can be used to drive the feeding.

[0090] For example, the left support 253 is provided with a left drive shaft 262, which is arranged transversely, and the left drive shaft 262 is in transmission connection with the left conveying belt 241 and the middle left conveying belt 2421, and the right drive shaft 263 rotates to drive the right conveying belt 243 and the middle right conveying belt 2422 to run; similarly, the right support 254 is provided with a right drive shaft 263, which is arranged transversely, and the right drive shaft 263 is in transmission connection with the right conveying belt 243 and the middle right conveying belt 2422, and the right drive shaft 263 rotates to drive the right conveying belt 243 and the middle right conveying belt 2422 to run. In addition, the left drive shaft 262 is further provided with a left input spur gear 264, and power is transmitted from the left input spur gear 264 to drive the left drive shaft 262 to rotate, and the right drive shaft 263 is further provided with a right input spur gear 265, and power is transmitted from the right input spur gear 265 to drive the right drive shaft 263 to rotate. Evenly, the left drive shaft 262 and the right drive shaft 263 are further provided with a driving main shaft 261, which is arranged transversely, and the driving main shaft 261 is in transmission connection with a conveying main motor 26 (such as a servo motor), and the driving main shaft 261 is driven by the conveying main motor 26 to rotate, and the driving main shaft 261 is provided with a left output spur gear 266 and a right output spur gear 267, the left input spur gear 264 is in meshing transmission connection with the left output spur gear 266 and can be relatively transversely adjusted, the right input spur gear 265 is in meshing transmission connection with the right output spur gear 267 and can be relatively transversely adjusted, the driving main shaft 261 drives the left input spur gear 264 to rotate through the left output spur gear 266, the driving main shaft 261 drives the right input spur gear 265 to rotate through the right output spur gear 267, and the spur gear structure can be relatively transversely adjusted, and the left input spur gear 264 can still maintain transmission when the left drive shaft 262 and the left support 253 are transversely adjusted, and the right input spur gear 265 can still maintain transmission when the right drive shaft 263 and the right support 254 are transversely adjusted, and in this driving structure, one conveying main motor 26 drives the left conveying belt 241 and the middle conveying belt 242 and the right conveying belt 243 to run synchronously, and can meet the transverse movement demand (i.e. transverse adjustment position demand) of the left support 253 and the right support 254.

[0091] For example, the left folding material component 211 includes a left folding material rod 2111, and is further connected with a first lifting support 212 arranged on a first horizontal moving support 213. The first lifting support 212 is lifted and lowered on the first horizontal moving support 213, and moves horizontally with the first horizontal moving support 213, so as to realize lifting and left-right moving of the left folding material component 211 (including the left folding material rod 2111). Similarly, the right folding material component 221 includes a right folding material rod 2211, and is further connected with a second lifting support 222 arranged on a second horizontal moving support 223. The second lifting support 222 is lifted and lowered on the second horizontal moving support 223, and moves horizontally with the second horizontal moving support 223, so as to realize lifting and left-right moving of the right folding material component 221 (including the right folding material rod 2211).

[0092] The driving components for lifting and horizontal moving are more, for example, the first lifting support 212 and the first horizontal moving support 213 are provided with a first lifting driving cylinder 214, and the second lifting support 222 and the second horizontal moving support 223 are provided with a second lifting driving cylinder 224. The lifting driving cylinders (such as the piston rod extension) can drive lifting. The first horizontal moving support 213 is drivingly connected with a first horizontal moving driving motor 215 (such as a servo motor), and the first horizontal moving driving motor 215 is drivingly connected with the first horizontal moving support 213 through a first belt 216. The second horizontal moving support 223 is drivingly connected with a second horizontal moving driving motor 225 (such as a servo motor), and the second horizontal moving driving motor 225 is drivingly connected with the second horizontal moving support 223 through a second belt 226. The horizontal moving distances are controlled respectively.

[0093] In addition, in order to facilitate assembly and avoid position, the first lifting support 212 includes a first transverse arm 217, and the left folding material component 211 is connected to the right end of the first transverse arm 217, which is located at the front side and / or rear side of the left conveying belt 241. The second lifting support 222 includes a second transverse arm 227, and the right folding material component 221 is connected to the left end of the second transverse arm 227, which is located at the front side and / or rear side of the right conveying belt 243. During lifting and left-right moving of the left folding material component 211, the left folding material component 211 can smoothly avoid the left conveying belt 241 and the suspended folding material blocking edge component 23. During lifting and left-right moving of the right folding material component 221, the right folding material component 221 can smoothly avoid the right conveying belt 243 and the suspended folding material blocking edge component 23.

Claims

1. Towel folding equipment, comprising a pay-off feeding device (1), a conveying and cutting device (3), a towel middle folding device (2) and a towel front and back folding device (4), characterized in that: the pay-off feeding device (1) comprises a pay-off mechanism (11) on a rack (10), the conveying and cutting device (3) comprises a cutting mechanism (31), a pulling mechanism (32) and a clamping mechanism (33), the pulling mechanism (32) comprises a take-and-place clamp (321) for the cut-off material head, the take-and-place clamp (321) being arranged to move forward and backward, the clamping mechanism (33) comprises a first clamping unit (34) and a second clamping unit (35), the second clamping unit (35) is arranged to cooperate with the first clamping unit (34) forward and backward, the cutting part of the cutting mechanism (31) is arranged between the first clamping unit (34) and the second clamping unit (35), the output side of the pay-off feeding device (1) is connected with the input side of the conveying and cutting device (3), the output side of the conveying and cutting device (3) is connected with the input side of the towel middle folding device (2), the output side of the towel middle folding device (2) is connected with the input side of the towel front and back folding device (4).

2. The bath towel folding apparatus of claim 1, wherein: The pay-off mechanism (11) is provided with a pay-off feeding part (12), which is arranged on the rack (10) and comprises a roll support bracket (121) and a roll pulling conveying belt (122), the roll pulling conveying belt (122) is arranged on the roll support bracket (121), the roll pulling conveying belt (122) is further connected with a belt body running driving device (123).

3. The towel folding equipment according to claim 2, characterized in that: the pay-off mechanism (11) comprises a pay-off support swing arm (14), which is connected with a lifting swing driving device (112), a swing support pivot (113) is arranged between the pay-off support swing arm (14) and the rack (10), and the pay-off support swing arm (14) is connected with the swing support pivot (113); at least a first transmission wheel (124) and a second transmission wheel (125) are arranged on the roll support bracket (121), and the roll pulling conveying belt (122) is arranged around the first transmission wheel (124) and the second transmission wheel (125), and the first transmission wheel (124) is connected with the belt body running driving device (123); in the pay-off feeding working state, the roll pulling conveying belt (122) on the roll support bracket (121) is kept in contact with the front roll (100); the rack (10) is further provided with a base (18), the base (18) is provided with a transverse guide rail (181), the rack (10) is arranged on the transverse guide rail (181), and a transverse movement and deviation correction driving device (182) is further arranged between the rack (10) and the base (18); the transverse movement and deviation correction driving device (182) comprises a deviation correction motor.

4. The towel folding equipment according to claim 3, characterized in that: The lifting and swinging driving device (112) comprises a lifting and swinging driving cylinder (114), is connected to the rear part of the unwinding support swinging arm (14), and the swinging support rotating shaft (113) is connected to the middle part of the unwinding support swinging arm (14); the lifting and swinging driving device (112) is installed on the rack (10); The front outer side of the unwinding support swinging arm (14) is further connected with the swinging stable support structure (13), The swinging stable support structure (13) comprises a first sliding support block (131), a connecting support rotating shaft (132) and a second sliding support block (133), The first sliding support block (131) is arranged on the lifting guide rail (134), The first sliding support block (131) and the second sliding support block (133) are connected through the connecting support rotating shaft (132), The second sliding support block (133) is arranged on the linear guide rail (135) of the unwinding support swinging arm (14); The first sliding support block (131) and the second sliding support block (133) are connected through the connecting support rotating shaft (132), The linear guide rail (135) is arranged on the outer side of the unwinding support swinging arm (14); The unwinding support swinging arm (14) comprises left and right swinging arm bodies (141) arranged side by side, and the left and right swinging arm bodies (141) are connected through the connecting component (142), The front end of the swinging arm body (141) is further provided with a protrusion (143), The swinging arm body (141) has a reel support plane (144), and the protrusion (143) is located at the front end of the reel support plane (144); The reel support plane (144) is arranged on the upper edge of the swinging arm body (141); The unwinding mechanism (11) further comprises a reel unwinding position locking device (15) corresponding to the unwinding support swinging arm (14) in the lifting position; the reel unwinding position locking device (15) is arranged on the rack (10); The reel unwinding position locking device (15) comprises a locking seat (151) and a movable lock latch (152), the locking seat (151) is provided with a lock opening (153) for placing the unwinding reel (16), and the movable lock latch (152) is arranged at the entrance of the lock opening (153), The lock opening (153) is arranged forwardly, and the reel support plane (144) on the unwinding support swinging arm (14) in the lifting position is arranged in cooperation with the lock opening (153); The unwinding mechanism (11) is provided with an unwinding reel (16), the unwinding reel (16) comprises a shaft body (161) and a bearing sleeve (162), the bearing sleeve (162) is arranged at the end of the shaft body (161), the shaft body (161) and the bearing sleeve (162) are provided with a reel bearing (163) therebetween, and the bearing sleeve (162) is arranged in cooperation with the reel unwinding position locking device (15); The winding support frame (121) is further provided with a winding auxiliary idler wheel (126), and the winding auxiliary idler wheel (126) is located at the inner side of the winding dragging material conveying belt (122), The winding support frame (121) is further provided with a winding setting separation state switching device (17). The main rotating shaft (127) is arranged on the rack (10), the first transmission wheel (124) is arranged on the main rotating shaft (127), the first transmission wheel (124) is in transmission connection with the main rotating shaft (127), the main rotating shaft (127) is in transmission connection with the unwinding driving motor (128), the unwinding driving motor (128) is installed on the rack (10), the belt body running driving device (123) comprises the main rotating shaft (127) and the unwinding driving motor (128), The winding support (121) is connected to the main rotating shaft (127) through the second bearing (129), and the winding support (121) is swingably arranged with the main rotating shaft (127) as the axis, The winding support and the rack (10) are provided with a winding separation state switching device (17), The winding separation state switching device (17) comprises a switching and holding cylinder (171), the switching and holding cylinder (171) is hingedly connected to the rack (10), and the switching and holding cylinder (171) is in transmission hinged connection with the winding support.

5. The bath towel folding device according to claim 1, wherein: The first clamping unit (34) comprises a first upper pressing component (341) and a first lower supporting component (342) which are opened and closed in cooperation, The second clamping unit (35) comprises a second upper pressing component (351) and a second lower supporting component (352) which are opened and closed in cooperation; The clamping mechanism (33) further comprises a third clamping unit (36) arranged on the front side of the second clamping unit (35), The second clamping unit (35) is located between the first clamping unit (34) and the third clamping unit (36), The second lower supporting component (352) is arranged to move forward and backward, and is in transmission connection with a forward and backward movement driving device (353); The third clamping unit (36) comprises a third upper pressing component (361) and a third lower supporting component (362) which are opened and closed in cooperation.

6. The bath towel folding device according to claim 5, wherein: The second lower supporting component (352) is further provided with a material taking gap (354), the material taking gap (354) is arranged corresponding to the material taking clamp (321), and the material taking gap (354) is located at the rear edge of the second lower supporting component (352); The first upper pressing component (341) is arranged to move up and down, and the first lower supporting component (342) is arranged to move up and down, The second upper pressing component (351) is arranged to move up and down, The third upper pressing component (361) is arranged to move up and down; The first lower supporting component (342) is at the same supporting height as the second lower supporting component (352) at the upper rising point position, The front side of the third clamping unit (36) is further provided with a material guiding roller group (37), The unwinding feeding device (1) and the conveying and cutting device (3) are further provided with a bath towel sterilization device.

7. The bath towel folding device according to claim 5, wherein: The cutting component adopts an ultrasonic material cutting device; The ultrasonic material cutting device comprises a rolling knife (312) and an ultrasonic head (313), The rolling knife (312) and the ultrasonic head (313) are arranged in corresponding cooperation up and down, The ultrasonic material cutting device is arranged on the transverse cutting support (314); The transverse cutting support (314) comprises an upper transverse support (3141) and a lower transverse support (3142), and the upper transverse support (3141) is arranged synchronously and transversely with the lower transverse support (3142), The rolling cutter (312) and the ultrasonic head (313) are arranged on the upper transverse support (3141) and the lower transverse support (3142) respectively, and the rolling cutter (312) and the ultrasonic head (313) abut and cut each other, The rolling cutter (312) is further connected with a rolling driving component (3121), and the rolling driving component (3121) is connected to the transverse cutting support (314); The circumferential edge of the rolling cutter (312) is further provided with a raised (143) blade edge ring, The transverse cutting support (314) is connected with a transverse cutting driving device (315); The rolling cutter (312) is arranged in a lifting cooperation manner on the transverse cutting support (314), and the upper transverse support (3141) is provided with a lifting frame (3143), The lifting frame (3143) and the upper transverse support (3141) are further provided with a cutter lifting driving device (3144) therebetween, The rolling cutter (312) and the rolling driving component (3121) are connected to the lifting frame (3143); The taking and placing clamp (321) comprises an upper clamp jaw (322) and a lower clamp jaw (323), and the upper clamp jaw (322) and the lower clamp jaw (323) are arranged in an opening and closing cooperation manner, The upper clamp jaw (322) and the lower clamp jaw (323) are arranged in at least two pairs in a transverse direction, The taking and placing clamp (321) is arranged on a longitudinal support (324), and the longitudinal support (324) is arranged on a longitudinal guide rail (325) in a cooperation manner, The longitudinal support (324) is connected with a longitudinal driving motor (326); The longitudinal support (324) comprises a cross beam (3241) and a front extending arm (3242), the front extending arm (3242) is connected to the cross beam (3241), and the cross beam (3241) is arranged on the longitudinal guide rail (325), The taking and placing clamp (321) is arranged on a lifting plate (3243), the taking and placing clamp (321) is arranged on the longitudinal support (324) through the lifting plate (3243), the lifting plate (3243) is connected to the front extending arm (3242), The longitudinal support (324) and the lifting plate (3243) are provided with a taking and placing lifting driving device (3244) therebetween, The taking and placing lifting driving device (3244) is connected to the lifting plate (3243) and the front extending arm (3242), The lower clamp jaw (323) is arranged on the lifting plate (3243), and the upper clamp jaw (322) is connected to the lifting plate (3243) through a lifting clamp driving device (3245); The pulling mechanism (32) further comprises a material supporting conveying belt (327), the material supporting conveying belt (327) is arranged on the rear side of the first clamp unit (34), and the material supporting conveying belt (327) is arranged below the taking and placing clamp (321); The taking and placing speed of the taking and placing clamp (321) matches the feeding speed of the material supporting conveying belt (327).

8. The bath towel folding apparatus of claim 1, wherein: The towel folding device (2) is a three-fold device which folds the towel alternately left and right to the middle. The three-fold device comprises a left folding mechanism (21), a right folding mechanism (22), a suspended folding lining blocking edge component (23) and a towel laying and conveying mechanism (24), The towel laying and conveying mechanism (24) comprises a left conveying belt (241), a middle conveying belt (242) and a right conveying belt (243) arranged from front to back, The middle conveying belt (242) is located between the left conveying belt (241) and the right conveying belt (243), The suspended folding lining blocking edge component (23) is arranged above the middle conveying belt (242), The left folding mechanism (21) comprises a left folding component (211) which is arranged to be lifted and moved left and right, A left side channel (251) is left between the left conveying belt (241) and the middle conveying belt (242) for the left folding component (211) to be lifted, The right folding mechanism (22) comprises a right folding component (221) which is arranged to be lifted and moved left and right, A right side channel (252) is left between the right conveying belt (243) and the middle conveying belt (242) for the right folding component (221) to be lifted.

9. The towel folding device according to claim 8, wherein: The front end of the suspended folding lining blocking edge component (23) is connected with the support component (231), and the rear end of the suspended folding lining blocking edge component (23) is a free output end; The left folding component (211) comprises a left folding rod (2111), and is further connected with a first lifting bracket (212) which is arranged on a first horizontal moving bracket (213), The right folding component (221) comprises a right folding rod (2211), and is further connected with a second lifting bracket (222) which is arranged on a second horizontal moving bracket (223).

10. The bath towel folding apparatus of claim 9, wherein: The left conveying belt (241), the middle conveying belt (242) and the right conveying belt (243) are arranged to be intermittently fed synchronously; The suspended folding lining blocking edge component (23) comprises a left suspended plate (232) and a right suspended plate (233), and the left and right positions of the left suspended plate (232) and / or the right suspended plate (233) are arranged to be adjusted, The front part of the suspended folding lining blocking edge component (23) has a material guiding part; The suspended folding lining blocking edge component (23) and the middle conveying belt (242) below are arranged to have a matching interval; The left side of the suspended folding lining blocking edge component (23) corresponds to the left side of the middle conveying belt (242) up and down, The right side of the suspended folding lining blocking edge component (23) corresponds to the right side of the middle conveying belt (242) up and down; The three-fold device further comprises a left bracket (253) and a right bracket (254), and the middle conveying belt (242) comprises a middle left moving belt (2421) and a middle right moving belt (2422), The left conveying belt (241) and the middle left conveying belt (2421) are arranged on the left support (253), and the left side channel (251) is located between the left conveying belt (241) and the middle left conveying belt (2421), The right conveying belt (243) and the middle right conveying belt (2422) are arranged on the right support (254), and the right side channel (252) is located between the right conveying belt (243) and the middle right conveying belt (2422), The left support (253) is arranged on the transverse track (255), and the right support (254) is arranged on the transverse track (255), The left support (253) and the right support (254) are further connected with the transverse displacement transmission component (256) respectively; The middle material supporting frame (257) is further arranged between the left support (253) and the right support (254), The left driving shaft (262) is arranged on the left support (253) and is arranged transversely, and the left driving shaft (262) is in transmission connection with the left conveying belt (241) and the middle left conveying belt (2421), The right driving shaft (263) is arranged on the right support (254) and is arranged transversely, and the right driving shaft (263) is in transmission connection with the right conveying belt (243) and the middle right conveying belt (2422); The left input spur gear (264) is further arranged on the left driving shaft (262), and the right input spur gear (265) is further arranged on the right driving shaft (263), The left driving shaft (262) and the right driving shaft (263) are further provided with the driving main shaft (261), the driving main shaft (261) is arranged transversely, and the driving main shaft (261) is in transmission connection with the conveying main motor (26), The left output spur gear (266) and the right output spur gear (267) are arranged on the driving main shaft (261), The left input spur gear (264) is in meshing transmission connection with the left output spur gear (266) and can be relatively transversely displaced, The right input spur gear (265) is in meshing transmission connection with the right output spur gear (267) and can be relatively transversely displaced; The first lifting support (212) and the first transverse displacement support (213) are provided with the first lifting driving cylinder (214), The second lifting support (222) and the second transverse displacement support (223) are provided with the second lifting driving cylinder (224), The first transverse displacement support (213) is in transmission connection with the first transverse displacement driving motor (215), and the first transverse displacement driving motor (215) is in transmission connection with the first transverse displacement support (213) through the first belt (216), The second transverse displacement support (223) is in transmission connection with the second transverse displacement driving motor (225), and the second transverse displacement driving motor (225) is in transmission connection with the second transverse displacement support (223) through the second belt (226), The first lifting support (212) comprises a first transverse arm (217), and the left material folding component (211) is connected to the right end of the first transverse arm (217), and the first transverse arm (217) is located on the front side and / or the rear side of the left conveying belt (241), The second lifting support (222) comprises a second transverse arm (227), and the right folding component (221) is connected to the left end of the second transverse arm (227), and the second transverse arm (227) is located at the front side and / or rear side of the right conveying belt (243).

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