CN111020896B

CN111020896B - Cloth connecting device

Info

Publication number: CN111020896B
Application number: CN201911168101.9A
Authority: CN
Inventors: 薛伟民
Original assignee: Hangzhou Xinsheng Printing & Dyeing Co ltd
Current assignee: Hangzhou Xinsheng Printing & Dyeing Co ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2021-08-03
Anticipated expiration: 2039-11-25
Also published as: CN111020896A

Abstract

The invention relates to a cloth connecting device, belongs to the technical field of cloth processing, and solves the problem of high labor intensity of cloth sewing in the prior art. The scheme comprises a frame body, wherein an arc guide sheet group with a splayed cross section is installed on the frame body, and comprises a first arc guide sheet and a second arc guide sheet; a conveying roller is further arranged on the frame body, and a gap between the conveying roller and the first arc-shaped guide sheet is a first clamping gap; the support body is provided with a supporting piece, and a gap between the supporting piece and the second arc-shaped guide sheet is a second clamping gap; the frame body is also provided with a detector, and the frame body is provided with a limiting circuit for limiting the movement of the blank cloth in the second material clamping gap when the blank cloth is not detected in the detection range of the detector; the frame body is connected with a full-automatic sewing machine head in a sliding mode, and a sewing area of the full-automatic sewing machine head is located right above a position between the first arc-shaped guide piece and the second arc-shaped guide piece. According to the scheme, semi-automatic grey cloth sewing can be realized, and the labor intensity is reduced.

Description

Cloth connecting device

Technical Field

The invention relates to the technical field of cloth processing, in particular to a cloth connecting device.

Background

In textile production, in order to prevent the knitted fabric from wrinkling in the bleaching and dyeing process and enable the fabric to be smooth and clean, the fabric is subjected to a steaming and sizing process before dyeing.

The existing steaming and shaping equipment consists of an scutching mechanism, a dedusting mechanism, a dip-dyeing mechanism, a drying mechanism and the like, the occupied space length of the whole set of steaming and shaping equipment is longer, so that the length of the processed wool gray fabric is also required to be longer, and in order to improve the processing efficiency, the end parts of two rolls of wool gray fabric are generally sewn to ensure the continuous traction of the wool gray fabric; the specific sewing operation is as follows: firstly, completely unreeling first roll cloth (first grey cloth) to an inclined buffer table to expose the tail end of the first roll cloth, wherein the first roll cloth unreeled to the inclined buffer table needs to be arranged in order, and otherwise, the grey cloth is possibly blocked when being fed into steaming and shaping equipment; secondly, an operator pulls out the head end of the secondary batching (the next batch of wool grey cloth to be sewn) and places the head end of the secondary batching and the tail end of the primary batching on a sewing machine beside the inclined buffer platform together for sewing; and thirdly, putting the sewn blank cloth back to the inclined buffer table again, and finishing to restore the previous orderly arrangement state.

In the above operation, the manual stitching in the second step and the setting back and setting back in the third step have the problems of low automation degree and high labor intensity of workers.

Disclosure of Invention

The invention aims to provide a cloth connecting device which can realize semi-automatic grey cloth sewing and reduce labor intensity.

The above object of the present invention is achieved by the following technical solutions:

a cloth connecting device comprises a frame body, wherein an arc guide sheet group with a splayed cross section is mounted on the frame body, and comprises a first arc guide sheet and a second arc guide sheet which are sequentially arranged along the conveying direction of blank cloth; a horizontally arranged conveying roller is further rotatably erected on the frame body and is positioned on one side, away from the second arc-shaped guide piece, of the first arc-shaped guide piece, the conveying roller is axially vertical to the conveying direction of the blank cloth, and a first material clamping gap is formed between the conveying roller and the first arc-shaped guide piece; the support body is provided with a propping piece which is positioned on one side of the second arc-shaped guide sheet far away from the first arc-shaped guide sheet, and a gap between the propping piece and the second arc-shaped guide sheet is a second clamping gap; the frame body is also provided with a detector which is positioned on one side of the conveying roller, which is far away from the abutting part, and the frame body is provided with a limiting circuit which controls the abutting part to limit the blank cloth to move in the second clamping gap when no blank cloth exists in the detection range of the detector; the frame body is connected with a full-automatic sewing machine head in a sliding mode, the sliding direction of the full-automatic sewing machine head is parallel to the axial direction of the conveying roller, and the sewing area of the full-automatic sewing machine head is located right above the gap between the first arc-shaped guide piece and the second arc-shaped guide piece.

By adopting the technical scheme, the first roll of cloth can firstly pass through the first material clamping gap, then pass through the second material clamping gap and be stacked on the inclined buffering table; when the tail end of the first roll of cloth passes through the middle point position of the first arc-shaped guide piece and the second arc-shaped guide piece, the limiting circuit controls the abutting piece to abut the first roll of cloth on the second arc-shaped guide piece, the part of the first roll of cloth close to the tail end is positioned, and the tail end of the first roll of cloth tilts upwards to wait for sewing;

then an operator can put the head end of the secondary batching cloth into the first clamping gap and rotate the conveying roller to push the head end of the secondary batching cloth to the upper part of the first arc-shaped guide sheet, and at the moment, the head end of the secondary batching cloth is tilted upwards and close to the tail end of the primary batching cloth to wait for sewing;

then the full-automatic sewing machine head can be driven to move and started to start sewing, and the full-automatic sewing machine head can move and sew the tail end of the first cloth roll and the tail end of the second cloth roll at the same time.

By the operation, semi-automatic grey cloth sewing can be realized, and the labor intensity is reduced.

Preferably: the frame body is provided with a vertically arranged positioning plate, the positioning plate is positioned above the sewing range of the full-automatic sewing machine, a second clamping plate is rotatably connected to the positioning plate, and the rotating axis of the second clamping plate is parallel to the axis of the conveying roller; a gap between the lower end of the second clamping plate and the lower end of the positioning plate is a second positioning gap, a guide groove penetrates through the positioning plate, the length direction of the guide groove is parallel to the axial direction of the conveying roller, and the guide groove is communicated with the second positioning gap; a gap between the upper end of the second clamping plate and the upper end of the positioning plate is a second mounting gap, the rotating axis of the second clamping plate is positioned between the second positioning gap and the second mounting gap, a thrust elastic part, an electromagnet and a magnetic part are mounted in the second mounting gap, and the electromagnet and the magnetic part are respectively mounted on the positioning plate and the second clamping plate; when the hairless grey cloth is in the detection range of the detector, the limiting circuit also controls the electromagnet to electrically attract the magnetic piece.

By adopting the technical scheme, in the actual sewing process, because the tail end of the first roll of cloth also has gravity, the situation that the first roll of cloth overturns due to the upward tilting stage is possibly influenced by the outside, and then the tail end of the first roll of cloth is separated from the sewing area, so that the subsequent sewing operation cannot be realized. In the scheme, when no grey cloth exists in the detection range of the detector, the limiting circuit can also control the electromagnet to electrically attract the magnetic part, so that the lower end of the second clamping plate is close to the lower end of the positioning plate to clamp the grey cloth in the second positioning gap, the tail end of the first roll of cloth can be always kept in a sewing area in a sewing stage, and the sewing stability is improved.

Preferably: a first clamping plate is rotatably connected to the positioning plate, and the rotating axis of the first clamping plate is parallel to the axis of the conveying roller; the gap between the lower end of the first clamping plate and the lower end of the positioning plate is a first positioning gap, and the guide groove is communicated with the first positioning gap; the clearance between first splint upper end and the locating plate upper end is first installation clearance, and the axis of rotation of first splint is located between first locating gap and the first installation clearance, installs the pulling force elastic component in the first installation clearance, rotates on the locating plate to be connected with the bracing piece, and first splint be close to one side sunken of first installation clearance have be used for with bracing piece complex locating hole.

Through adopting above-mentioned technical scheme, the same reason, the head end of inferior batching also can lead to unable keeping throughout in sewing area because of external factors, and in this scheme, can realize pressing from both sides tight to inferior batching head end to guarantee that the head end of inferior batching can keep throughout in sewing area in the sewing phase, improve sewing stability.

Preferably: install the driving piece that is used for driving first arc guide piece to go up and down on the support body, when first arc guide piece moved to the top, the upper end butt of first arc guide piece was in the lower extreme of locating plate, and blank cloth presss from both sides tightly in first clamp material clearance.

By adopting the technical scheme, when the first arc-shaped guide piece moves to the uppermost end, the upper end of the first arc-shaped guide piece abuts against the lower end of the positioning plate, and the blank cloth is clamped in the first material clamping gap; under this state, first arc guide piece and first locating gap are linked to be integrative, and the head end of secondary batching can be under the guide of first arc guide piece, and the leading-in is more easily gone into in the first locating gap to and reduce the head end of secondary batching and hang down the probability under the action of gravity.

Preferably: the frame body is rotatably connected with a pressing swing roller, the rotating axis of the pressing swing roller is parallel to the axis of the conveying roller, and the overturning track of the pressing swing roller passes through the space between the sewing area of the full-automatic sewing machine head and the upper end of the arc-shaped guide piece group; the frame body is provided with a limiting pin used for limiting the rotation of the pressing swing roller.

Through adopting above-mentioned technical scheme, be connected with the torsional spring between pendulum rod and the support body, the torsional spring is used for driving and compresses tightly the swing roll upset to the head end of butt secondary batching, and make the head end of secondary batching paste in the tail end of first batching, with this improvement sewing stability.

Preferably: the supporting piece is in a roller shape and is rotatably connected to the frame body, the rotating axis of the supporting piece is parallel to the axis of the conveying roller, and a second rubber sleeve is fixedly wrapped on the periphery of the supporting piece; the frame body is provided with a power part for driving the abutting part to rotate.

Through adopting above-mentioned technical scheme, at the sewing stage, support the removal that tight piece can be used to the first batching of restriction, at the tractive stage of first batching, support the piece under the power piece effect, can realize the tractive to first batching.

Preferably: a second rubber layer is fixed on one side, close to the second positioning gap, of the second clamping plate; a first rubber layer is fixed on one side, close to the first positioning gap, of the first clamping plate.

By adopting the technical scheme, the first rubber layer and the second rubber layer can be respectively used for improving the stability of the blank cloth in the first positioning gap and the second positioning gap.

Preferably: the support body is fixed with a bearing platform.

Through adopting above-mentioned technical scheme, the cushion cap can be used to place the secondary batching.

In conclusion, the beneficial technical effects of the invention are as follows:

1. in the scheme, the limiting circuit, the abutting piece, the arc-shaped guide piece group, the conveying roller and other features are cooperatively matched, so that the tail end of the first roll of cloth and the head end of the second roll of cloth can be tilted upwards, the movable full-automatic sewing machine head can be used for sewing the tail end of the first roll of cloth and the head end of the second roll of cloth, and finally, semi-automatic grey cloth sewing can be realized, and the labor intensity is reduced;

2. in the scheme, the positioning plate, the first clamping plate, the second clamping plate and other components are arranged, so that the tail end of the first rolled cloth and the head end of the second rolled cloth can be maintained in a sewing area in a sewing stage, and the sewing stability is improved;

3. in this scheme, but compress tightly the head end of the inferior batching of pendulum roller butt to and make the head end of inferior batching paste in the tail end of first batching, with this improvement sewing stability.

Drawings

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

Fig. 2 is a schematic cross-sectional view of fig. 1.

Fig. 3 is a partial connection view of the components around the positioning plate in fig. 2.

Fig. 4 is a limiting circuit diagram.

Fig. 5 is a schematic view illustrating a connection relationship between the pressing swing roller and the frame body in fig. 2.

In the figure, 1, a frame body; 11. a support platform; 12. inclining the buffer platform; 13. a chute; 14. a slider; 15. a sewing motor; 16. a full-automatic sewing machine head; 17. a sewing needle; 18. a base plate; 2. a first arc-shaped guide piece; 21. a conveying roller; 22. a first material clamping gap; 3. a second arc-shaped guide piece; 31. an abutting piece; 32. a second material clamping gap; 33. a power member; 4. a limiting circuit; 41. a detector; 42. a comparison unit; 43. an execution unit; 5. positioning a plate; 51. a guide groove; 52. a second splint; 53. a second positioning gap; 54. a second mounting gap; 55. an electromagnet; 56. a magnetic member; 57. a first splint; 58. a first positioning gap; 59. a first mounting gap; 591. a support bar; 592. positioning holes; 6. a drive member; 7. a swing rod; 71. pressing the swing roller; 72. a spacing pin; 73. a pin hole; 8. firstly, rolling the cloth; 9. and (5) secondary cloth rolling.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, a cloth connecting device disclosed in this embodiment includes a frame body 1, an arc guide sheet group having a cross-section in a shape of a Chinese character 'ba' is installed on the frame body 1, and the arc guide sheet group includes a first arc guide sheet 2 and a second arc guide sheet 3 sequentially arranged along a conveying direction of a blank cloth; the support body 1 is fixed with a bearing platform 11, the bearing platform 11 is located at the front end of the first arc-shaped guide piece 2, a blank cloth roll can be placed on the bearing platform 11, and the blank cloth is guided by the first arc-shaped guide piece 2 and the second arc-shaped guide piece 3 in sequence and conveyed to the upper side of the inclined buffer storage platform 12.

A horizontally arranged conveying roller 21 is further rotatably erected on the frame body 1, the conveying roller 21 is positioned on one side, away from the second arc-shaped guide piece 3, of the first arc-shaped guide piece 2, the conveying roller 21 is axially vertical to the conveying direction of the blank cloth, and a first rubber sleeve is fixedly wrapped on the periphery of the conveying roller 21; a rotating handle is fixed at the end part of the conveying roller 21, so that an operator can rotate the conveying roller 21 manually; the gap between the conveying roller 21 and the first arc-shaped guiding piece 2 is a first material clamping gap 22, the blank cloth can pass through the first material clamping gap 22 from bottom to top, and when an operator controls the rotating handle to rotate the conveying roller 21, the blank cloth in the first material clamping gap 22 can be driven to move upwards along the surface of the first arc-shaped guiding piece 2 by means of friction force.

The frame body 1 is rotatably connected with a roller-shaped abutting piece 31, the abutting piece 31 is parallel to the conveying roller 21, the abutting piece 31 is positioned on one side, away from the first arc-shaped guide piece 2, of the second arc-shaped guide piece 3, and a second rubber sleeve is fixedly wrapped on the periphery of the abutting piece 31; the frame body 1 is provided with a power part 33 for driving the abutting part 31 to rotate, and the power part 33 is a band-type brake motor; a gap between the abutting piece 31 and the second arc-shaped guide piece 3 is a second clamping gap 32, the blank cloth can pass through the second clamping gap 32 from top to bottom, and when the abutting piece 31 is driven by the power piece 33 to rotate, the blank cloth in the second clamping gap 32 can be driven by friction to move downwards along the surface of the second arc-shaped guide piece 3; when the power member 33 is powered off and the rotation of the abutting member 31 is limited, the blank cloth cannot move continuously in the second material clamping gap 32 under the limiting action of the abutting member 31.

The frame body 1 is provided with a sliding chute 13, the length direction of the sliding chute 13 is parallel to the axial direction of the conveying roller 21, a sliding block 14 is slidably clamped in the sliding chute 13, a threaded screw rod and a sewing motor 15 for driving the threaded screw rod to rotate are mounted on the frame body 1, the threaded screw rod is connected to the sliding block 14, and the sewing motor 15 can drive the sliding block 14 to slide in a reciprocating manner; the slider 14 is fixedly connected with a full-automatic sewing machine head 16, and the full-automatic sewing machine head 16 is turned ninety degrees and arranged downwards, namely the original sewing plane is changed from horizontal to vertical; the full-automatic sewing machine head 16 is approximately in an inverted U shape, a sewing needle 17 and a backing plate 18 are arranged on the full-automatic sewing machine head 16, the area between the sewing needle 17 and the backing plate 18 is the sewing area of the full-automatic sewing machine head 16, and the sewing area of the full-automatic sewing machine head 16 is located right above the gap between the first arc-shaped guide piece 2 and the second arc-shaped guide piece 3.

The frame body 1 is also provided with a detector 41, the detector 41 is a distance sensor arranged downwards, and the detector 41 is positioned at the front end of the conveying roller 21; the frame body 1 is provided with a limiting circuit 4, when the tail end of the first roll of cloth 8 passes through the detection range of the detector 41, namely the detector 41 cannot detect the blank cloth, the limiting circuit 4 delays to control the power part 33 to be powered off, and when the tail end of the first roll of cloth 8 moves to the sewing area of the full-automatic sewing machine head 16, the movement is just stopped. Then, the operator can put the head end of the secondary batching 9 into the first material clamping gap 22 and rotate the conveying roller 21, so that the head end of the secondary batching 9 can pass through the first material clamping gap 22, and also move into the sewing area of the full-automatic sewing machine head 16 and overlap with the tail end of the primary batching 8, at the moment, the sewing motor 15 can be started, and the full-automatic sewing machine head 16 can sew two pieces of cloth in the sewing area.

It is worth to be noted that, because the arc-shaped guiding sheet group is roughly in a shape of Chinese character 'ba', and the upper ends of the first arc-shaped guiding sheet 2 and the second arc-shaped guiding sheet 3 are both in a larger inclination, the head end of the secondary batching 9 and the tail end of the first batching 8 can be kept in the sewing area of the full-automatic sewing machine head 16 without much external influence.

Referring to fig. 2 and 3, a positioning plate 5 is vertically arranged on the frame body 1, the positioning plate 5 is positioned above the sewing range of the full-automatic sewing machine, a second clamping plate 52 is rotatably connected to the positioning plate 5, and the rotating axis of the second clamping plate 52 is parallel to the axis of the conveying roller 21; a gap between the lower end of the second clamping plate 52 and the lower end of the positioning plate 5 is a second positioning gap 53, a guide groove 51 penetrates through the positioning plate 5, the length direction of the guide groove 51 is parallel to the axial direction of the conveying roller 21, and the guide groove 51 is communicated with the second positioning gap 53; the grey cloth firstly passes through the guide groove 51, then passes through the second positioning gap 53 and then passes into the second material clamping gap 32; a gap between the upper end of the second clamping plate 52 and the upper end of the positioning plate 5 is a second mounting gap 54, the rotation axis of the second clamping plate 52 is located between the second positioning gap 53 and the second mounting gap 54, a thrust elastic part, an electromagnet 55 and a magnetic part 56 are mounted in the second mounting gap 54, the thrust elastic part is a spring, and the electromagnet 55 and the magnetic part 56 are respectively mounted on the positioning plate 5 and the second clamping plate 52; when the blank cloth is not in the detection range of the detector 41, the limiting circuit 4 can also control the electromagnet 55 to electrically attract the magnetic part 56, so that the lower end of the second clamping plate 52 is close to the lower end of the positioning plate 5 to clamp the blank cloth in the second positioning gap 53, thereby ensuring that the tail end of the first winding cloth 8 can be always kept in the sewing area in the sewing stage, and improving the sewing stability.

A first clamping plate 57 is rotatably connected to the positioning plate 5, and the rotating axis of the first clamping plate 57 is parallel to the axis of the conveying roller 21; the gap between the lower end of the first clamping plate 57 and the lower end of the positioning plate 5 is a first positioning gap 58, and the guide groove 51 is communicated with the first positioning gap 58; the gap between the upper end of the first clamping plate 57 and the upper end of the positioning plate 5 is a first mounting gap 59, the rotation axis of the first clamping plate 57 is located between the first positioning gap 58 and the first mounting gap 59, a tension elastic member is mounted in the first mounting gap 59, the tension elastic member is a spring, the positioning plate 5 is rotatably connected with a supporting rod 591, a positioning hole 592 is recessed on one side of the first clamping plate 57 close to the first mounting gap 59, the positioning hole 592 is used for being matched with the supporting rod 591, and when the end of the supporting rod 591 is inserted into the positioning hole 592, the supporting rod 591 can limit the upper end of the first clamping plate 57 close to the upper end of the positioning plate 5, so that the first mounting gap 59 with a sufficient size is formed.

The head end of the secondary batching 9 can enter the first positioning gap 58 after passing through the first clamping gap 22, then an operator can turn over the end part of the supporting rod 591 to separate from the positioning hole 592, and the first clamping plate 57 clamps the head end of the secondary batching 9 in the first positioning gap 58 under the action of the tensile force elastic part, so that the head end of the secondary batching 9 can be always kept in a sewing area in a sewing stage, and the sewing stability is improved.

A second rubber layer is fixed on one side of the second clamping plate 52 close to the second positioning gap 53, and the second rubber layer can improve the stability of clamping the tail end of the first roll cloth 8 in the second positioning gap 53; a first rubber layer is fixed on one side of the first clamping plate 57 close to the first positioning gap 58, and the first rubber layer can improve the stability of clamping the head end of the secondary winding cloth 9 in the first positioning gap 58.

Referring to fig. 4, the limiting circuit 4 includes:

a comparing unit 42, coupled to the output end of the distance sensor, for receiving the distance detection signal output by the distance sensor, comparing the distance detection signal with a preset value of the comparing unit 42, and finally outputting a comparison signal;

the execution unit 43 is coupled to the output end of the comparison unit 42 to receive the comparison signal, delay the control of the electromagnet 55 to be powered on, and delay the control of the power-off of the power element 33.

When the tail end of the first roll of cloth 8 does not pass through the detection range of the detector 41, that is, the detector 41 can detect the blank cloth, the comparison unit 42 outputs a high-level comparison signal, the triode Q1 is switched on, the switch SB1 is closed in advance, the relay K1 is powered on, the normally open contact K1-3 and the normally open contact K1-2 are closed, the normally closed contact K1-1 is disconnected, the power part 33 is powered on to continuously convey the blank cloth, and the electromagnet 55 is powered off and does not attract the magnetic part 56; the operator may then open switch SB 1.

When the tail end of the first roll of cloth 8 passes through the detection range of the detector 41, the comparison unit 42 outputs a low-level comparison signal, the triode Q1 is not conducted, due to the existence of the capacitor C1, the relay K1 is delayed to be not electrified, when the tail end of the first roll of cloth 8 moves into the second positioning gap 53, the relay K1 is just powered off, the normally open contact K1-3 and the normally open contact K1-2 are disconnected, the normally closed contact K1-1 is closed, the power part 33 is powered off to stop the rotation of the abutting part 31, and meanwhile, the electromagnet 55 is powered on to attract the magnetic part 56 so as to clamp the tail end of the first roll of cloth 8.

When an operator puts the head end of the secondary batching 9 into the first material clamping gap 22, the comparison unit 42 outputs a high-level comparison signal, the triode Q1 is conducted, but the relay K1 cannot be electrified due to the disconnection of the normally open contact K1-3, the normally open contact K1-2 keeps a disconnected state, and the normally closed contact K1-1 keeps a closed state.

Referring to fig. 2, a driving member 6 for driving the first arc-shaped guiding piece 2 to ascend and descend is installed on the frame body 1, the driving member 6 is an air cylinder, when the first arc-shaped guiding piece 2 moves to the uppermost end, the upper end of the first arc-shaped guiding piece 2 abuts against the lower end of the positioning plate 5, and the blank cloth is clamped in the first clamping gap 22; in this state, the leading end of the sub-roll 9 can be guided by the first arc-shaped guide piece 2 to be more easily introduced into the first positioning gap 58, and the probability that the leading end of the sub-roll 9 sags under the action of gravity is reduced.

The frame body 1 is rotatably connected with two oppositely arranged swing rods 7, the rotating axis of each swing rod 7 is parallel to the axis of the conveying roller 21, a pressing swing roller 71 is rotatably connected between the free ends of the two swing rods 7, and the rotating axis of the pressing swing roller 71 is parallel to the axis of the conveying roller 21; the overturning track of the pressing swing roller 71 passes through the sewing area of the full-automatic sewing machine head 16 and the upper end of the arc guide plate group, a torsion spring (not shown in the figure) is connected between the swing rod 7 and the frame body 1, and the torsion spring is used for driving the pressing swing roller 71 to overturn and abut against the head end of the secondary batching 9 and make the head end of the secondary batching 9 tightly abut against the tail end of the primary batching 8, so that the sewing stability is improved.

Referring to fig. 5, a limiting pin 72 is slidably inserted into the frame body 1, a pin hole 73 is formed in the peripheral wall of the swing link 7, when the limiting pin 72 is inserted into the pin hole 73, the swing link 7 and the pressing swing roller 71 cannot swing, and the pressing swing roller 71 is arranged away from the sewing area, and at this time, the pressing swing roller 71 does not abut against the secondary batching 9.

The implementation principle of the embodiment is as follows: the first roll of cloth 8 can sequentially pass through the first material clamping gap 22, the first positioning gap 58, the guide groove 51, the second positioning gap 53 and the second material clamping gap 32 and is stacked on the inclined buffering table 12; when the tail end of the first roll of cloth 8 passes through the first clamping gap 22 and the first positioning gap 58 and reaches the guide groove 51, the limiting circuit controls the electromagnet 55 to electrically attract the magnetic part 56, so that the lower end of the second clamping plate 52 is close to the lower end of the positioning plate 5 to clamp the tail end of the first roll of cloth 8 in the second positioning gap 53, and simultaneously controls the abutting part 31 to stop rotating and abut the first roll of cloth 8 on the second arc-shaped guide sheet 3, at the moment, the part of the first roll of cloth 8 close to the tail end is positioned, and the tail end of the first roll of cloth 8 is tilted upwards to wait for sewing;

then, an operator can put the head end of the secondary batching 9 into the first clamping gap 22 and rotate the conveying roller 21 to push the head end of the secondary batching 9 into the first positioning gap 58 and realize clamping, so that the positioning of the head end of the secondary batching 9 is completed, and at the moment, the head end of the secondary batching 9 is tilted upwards and attached to the tail end of the primary batching 8 to wait for sewing;

then, the sewing motor 15 and the full-automatic sewing machine head 16 can be started, and the full-automatic sewing machine head 16 finishes sewing the tail end of the first roll of cloth 8 and the tail end of the second roll of cloth 9 while moving.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. A cloth connecting device is characterized in that: the frame comprises a frame body (1), wherein an arc guide sheet group with a splayed cross section is installed on the frame body (1), and comprises a first arc guide sheet (2) and a second arc guide sheet (3) which are sequentially arranged along the conveying direction of blank cloth; a horizontally arranged conveying roller (21) is further rotatably erected on the frame body (1), the conveying roller (21) is positioned on one side, away from the second arc-shaped guide piece (3), of the first arc-shaped guide piece (2), the conveying roller (21) is axially vertical to the conveying direction of the raw grey cloth, and a gap between the conveying roller (21) and the first arc-shaped guide piece (2) is a first material clamping gap (22); the support body (1) is provided with a propping piece (31), the propping piece (31) is positioned on one side of the second arc-shaped guide sheet (3) far away from the first arc-shaped guide sheet (2), and a gap between the propping piece (31) and the second arc-shaped guide sheet (3) is a second clamping gap (32); the frame body (1) is further provided with a detector (41), the detector (41) is located on one side, away from the abutting piece (31), of the conveying roller (21), the limiting circuit (4) is arranged on the frame body (1), and when no blank cloth exists in the detection range of the detector (41), the limiting circuit (4) controls the abutting piece (31) to limit the blank cloth to move in the second clamping gap (32); a full-automatic sewing machine head (16) is connected to the frame body (1) in a sliding mode, the sliding direction of the full-automatic sewing machine head (16) is parallel to the axial direction of the conveying roller (21), and a sewing area of the full-automatic sewing machine head (16) is located right above a gap between the first arc-shaped guide sheet (2) and the second arc-shaped guide sheet (3); when the tail end of the first roll of cloth (8) passes through the middle point position of the first arc-shaped guide piece (2) and the second arc-shaped guide piece (3), the limiting circuit (4) controls the abutting piece (31) to abut the first roll of cloth (8) on the second arc-shaped guide piece (3), the first roll of cloth (8) is close to the tail end to complete positioning, and the tail end of the first roll of cloth (8) tilts upwards.

2. A cloth connecting device in accordance with claim 1, wherein: a vertically arranged positioning plate (5) is mounted on the frame body (1), the positioning plate (5) is positioned above the sewing range of the full-automatic sewing machine, a second clamping plate (52) is rotatably connected to the positioning plate (5), and the rotating axis of the second clamping plate (52) is parallel to the axis of the conveying roller (21); a gap between the lower end of the second clamping plate (52) and the lower end of the positioning plate (5) is a second positioning gap (53), a guide groove (51) penetrates through the positioning plate (5), the length direction of the guide groove (51) is parallel to the axial direction of the conveying roller (21), and the guide groove (51) is communicated with the second positioning gap (53); a gap between the upper end of the second clamping plate (52) and the upper end of the positioning plate (5) is a second mounting gap (54), the rotating axis of the second clamping plate (52) is positioned between the second positioning gap (53) and the second mounting gap (54), a thrust elastic part, an electromagnet (55) and a magnetic part (56) are mounted in the second mounting gap (54), and the electromagnet (55) and the magnetic part (56) are respectively mounted on the positioning plate (5) and the second clamping plate (52); when the blank cloth is absent in the detection range of the detector (41), the limiting circuit (4) also controls the electromagnet (55) to electrically attract the magnetic member (56).

3. A cloth connecting device in accordance with claim 2, wherein: a first clamping plate (57) is rotatably connected to the positioning plate (5), and the rotating axis of the first clamping plate (57) is parallel to the axis of the conveying roller (21); a gap between the lower end of the first clamping plate (57) and the lower end of the positioning plate (5) is a first positioning gap (58), and the guide groove (51) is communicated with the first positioning gap (58); the gap between the upper end of the first clamping plate (57) and the upper end of the positioning plate (5) is a first mounting gap (59), the rotating axis of the first clamping plate (57) is located between the first positioning gap (58) and the first mounting gap (59), a tension elastic piece is mounted in the first mounting gap (59), the positioning plate (5) is rotatably connected with a supporting rod (591), and one side, close to the first mounting gap (59), of the first clamping plate (57) is recessed with a positioning hole (592) used for being matched with the supporting rod (591).

4. A cloth connecting device in accordance with claim 3, wherein: install on support body (1) and be used for driving piece (6) that first arc guide piece (2) go up and down, when first arc guide piece (2) moved to the top, the upper end butt of first arc guide piece (2) in the lower extreme of locating plate (5), and blank cloth presss from both sides tightly in first material clearance (22) of pressing from both sides.

5. A cloth connecting device in accordance with claim 4, wherein: a pressing swing roller (71) is rotatably connected to the frame body (1), the rotating axis of the pressing swing roller (71) is parallel to the axis of the conveying roller (21), and the turning track of the pressing swing roller (71) passes through the space between the sewing area of the full-automatic sewing machine head (16) and the upper end of the arc-shaped guide sheet group; the frame body (1) is provided with a limiting pin (72) used for limiting the rotation of the pressing swing roller (71).

6. A cloth connecting device in accordance with claim 1, wherein: the abutting piece (31) is in a roller shape and is rotatably connected to the frame body (1), the rotating axis of the abutting piece (31) is parallel to the axis of the conveying roller (21), and a second rubber sleeve is fixedly wrapped on the periphery of the abutting piece (31); the frame body (1) is provided with a power part (33) for driving the abutting part (31) to rotate.

7. A cloth connecting device in accordance with claim 2, wherein: a second rubber layer is fixed on one side, close to the second positioning gap (53), of the second clamping plate (52); a first rubber layer is fixed on one side of the first clamping plate (57) close to the first positioning gap (58).

8. A cloth connecting device in accordance with claim 1, wherein: the support body (1) is fixed with a bearing platform (11).