Automatic lining strip feeding device of sleeve facing machine and sleeve facing machine

Abstract

The invention provides an automatic lining strip feeding device of a sleeve facing machine and the sleeve facing machine, and belongs to the technical field of sewing equipment. The sleeve opening machine comprises a machine frame, a workbench and a vacuum shaping plate are arranged on the machine frame, an air suction opening connected with a vacuum pump is formed in the vacuum shaping plate, the automatic lining strip feeding device comprises a connecting base, a lining strip pulling assembly is further arranged on the connecting base, and the lining strip pulling assembly comprises a first air cylinder fixed to the connecting base. A connecting plate is fixed to the front end of a piston rod of the first air cylinder, and a lining strip maintaining part is installed on the connecting plate. According to the automatic lining strip feeding device, in the sleeve opening manufacturing process, automatic adhesive strip feeding can be achieved, one-time line cutting in the middle is not needed, the manufactured sleeve opening is high in quality, folding and sewing of the sleeve opening are completed at a time, and the working efficiency is high.

Description

Technical Field

[0001] The invention belongs to the technical field of sewing equipment, and relates to an automatic lining strip feeding device of a sleeve opening machine and the sleeve opening machine. Background Art

[0002] During the shirt-making process, most fabrics are relatively thin and easily wrinkled after sewing, which is more obvious after washing. In order to ensure that they are smooth after sewing and washing, hot-melt adhesive strips are added to key positions such as the armholes, shoulders and sleeve slits. After squeezing, the adhesive strips are fused with the fabric and will not wrinkle even after washing.

[0003] When manually sewing the sleeve slit and adding the adhesive strip, it needs to be done in two steps: the first step is to fold the adhesive strip and the sleeve slit piece through the pull tube, and the flat sewing machine sews the long straight edge of the sleeve slit, which requires a thread cut; the second step is to manually fold the remaining part of the sleeve slit, and sew again from the thread cut position until the sword head is sewn. This method will inevitably cause a thread cut during the sleeve slit sewing process, and high-quality shirts are not allowed to break the thread in the middle. The stability of the sword head folded by hand cannot be guaranteed, it will be larger or smaller, and the length of the sleeve slit cannot be guaranteed.

[0004] However, the large sleeve slits made by conventional folding, pressing and shaping machines cannot be added with adhesive strips because they have already been shaped.

[0005] In order to make high-quality sleeve cuffs, it is necessary to be able to add rubber strips while having no connection in the middle, which requires a device that can automatically add rubber strips. Summary of the invention

[0006] The present invention aims at the above problems existing in the prior art and provides an automatic lining strip feeding device for a sleeve cuff machine. The technical problem to be solved by the present invention is: how to automatically add the rubber strip.

[0007] The purpose of the present invention can be achieved by the following technical solutions:

[0008] A kind of automatic lining strip feeding device of a sleeve cuff machine, the sleeve cuff machine comprises a frame, a workbench and a vacuum shaping plate are arranged on the frame, a suction port which can be connected to a vacuum pump is opened on the vacuum shaping plate, and it is characterized in that the automatic lining strip feeding device comprises a connecting base, a lining strip pulling assembly is also arranged on the connecting base, the lining strip pulling assembly comprises a cylinder 1 fixed on the connecting base, a connecting plate is fixed to the front end of the piston rod of the cylinder 1, and a lining strip retaining portion is installed on the connecting plate.

[0009] Its working principle is: the automatic lining strip feeding device is installed on the sleeve slit machine, the lining strip is wound on the lining strip guide assembly, and the end of the lining strip extends from the lining strip pulling assembly. When working, the operator steps on the pedal once, and the lifting connection block descends driven by the mechanical structure of the sleeve slit machine; then the sleeve slit piece is placed on the workbench of the sleeve slit machine, and the pedal is stepped on again. At this time, the lining strip pulling assembly clamps the end of the lining strip; step on the pedal again, the lining strip pulling assembly pulls out a certain length of lining strip, which is suspended at a position about 10 mm above the sleeve slit piece, and at the same time, one side of the lining strip is aligned with the edge of the suction port of the vacuum shaping plate; step on the pedal again, the lining strip cutting assembly cuts the lining strip; step on the pedal again, the vacuum pump starts, the vacuum shaping plate sucks and fixes the sleeve slit piece and the lining strip, and then the lining strip cutting assembly returns to the initial position, and the lining strip pulling assembly is also reset. The above actions take about 6 seconds to complete, or all actions can be completed by stepping on the pedal once. Then, with the help of other folding molds, the sleeve folding is completed; after that, the large cutting pieces are placed, and the pedal is stepped on again to complete the placement and grabbing of the fabric.

[0010] The automatic lining strip feeding device can realize automatic adding of adhesive strips during the sleeve cuff production process without cutting the thread in the middle, so the produced sleeve cuff is of high quality.

[0011] In the above-mentioned automatic lining strip feeding device of a sleeve cuff machine, a lining strip guide assembly is also provided on the connecting base, and the lining strip guide assembly includes two oppositely arranged guard plates, a rotatable connecting shaft is installed between the guard plates, an adjustment seat is fixed on the connecting shaft, the adjustment seat is located on the outer side of one of the guard plates, a support arm is installed on the adjustment seat, and the lower end of the support arm is fixed on the connecting base.

[0012] The guard plate and the connecting shaft form a lining disc, the lining strip is wound around the connecting shaft, and the two guard plates are respectively located on both sides of the lining strip to protect the lining strip. When in use, the lining strip is pulled out from between the two guard plates. The support arm is fixedly connected to the base to support the lining disc.

[0013] In the above-mentioned automatic lining strip feeding device of a sleeve cuff machine, a lifting connection block is installed on the connecting base, and the lifting connection block is connected to the frame in a manner that can be moved up and down. The lifting connection block is located on the front side of the guard plate, and a bottom plate is provided on the connecting base, and a guide groove is provided on the bottom plate. Preferably, a lining opening is provided on the lifting connection block, and the lining opening is opposite to the interval between the guard plate, and the guide groove is opposite to the lining opening.

[0014] The lining strip on the lining disc passes through the lining opening and then enters the guide groove. The guide groove guides the lining strip so that the lining strip basically does not deviate in direction during the process of being pulled out.

[0015] In the above-mentioned automatic lining strip feeding device of a sleeve crotch machine, a resistance adjusting block is installed on the bottom plate, and the resistance adjusting block is located at the rear end of the guide groove, and a U-shaped opening is opened at the front end of the bottom wall of the guide groove.

[0016] A U-shaped opening is provided at the front end of the bottom wall of the guide groove, so that the lining strip pulling assembly can better clamp the lining strip, thereby improving the convenience of operation.

[0017] In the above-mentioned automatic lining strip feeding device of a sleeve cuff machine, the lining strip holding portion includes a needle-type cylinder, the piston rod of the needle-type cylinder extends vertically, the side of the connecting plate is connected with a bending piece, the bending piece includes a vertical plate, and the lower part of the vertical plate has a transversely extending convex edge, and the convex edge is located below the needle-type cylinder.

[0018] The piston rod of the needle-type cylinder and the convex edge of the bent part form a clamp. After the piston rod of the needle-type cylinder extends downward, it can clamp the end of the lining strip together with the convex edge. When the cylinder drives the piston rod to move, the clamped lining strip can be pulled outward.

[0019] As an embodiment, cylinder one is fixed on the support arm.

[0020] In the above-mentioned automatic lining strip feeding device of a sleeve crotch machine, a connecting block is fixed to the front end of the piston rod of the cylinder, and a vertically extending bending plate is provided on the connecting plate. The bending plate and the connecting block are fixed by bolts, and a vertically extending strip groove is provided on the bending plate. The bolt is inserted into the strip groove and can move in the strip groove.

[0021] The connecting plate is connected to the piston rod of cylinder one through a connecting block, and the two are fixed by bolts. By loosening the bolts, the position of the connecting plate can be adjusted up and down, thereby adjusting the position of the needle cylinder and the convex edge (clip) on the bending part according to the position of the lining strip, and the adaptability is good.

[0022] In the above-mentioned automatic lining strip feeding device of a sleeve cuff machine, a mounting seat and a lining strip cutting assembly are also provided on the connecting base, and the lining strip cutting assembly includes a second cylinder, a movable knife and a fixed knife, and the fixed knife is fixedly mounted on the connecting base, and one end of the second cylinder is mounted on the mounting seat, and a swing block is hinged on the piston rod of the second cylinder, and a hinge shaft is mounted on the swing block, and the hinge shaft is rotatably connected to one end of the mounting seat, and the movable knife is mounted on the hinge shaft.

[0023] In the above-mentioned automatic lining strip feeding device of the sleeve cuff machine, the vacuum suction cup is fixed to the front end portion of the piston rod of the cylinder 1.

[0024] In the above-mentioned automatic lining strip feeding device of the sleeve crotch machine, a mold plate is installed on the connecting base, and a fixed knife is installed on the mold plate.

[0025] In the above-mentioned automatic lining strip feeding device of a sleeve opening machine, a spring is sleeved on the hinge shaft, and the spring is located between the swing block and the movable knife. The spring is in a compressed state and causes the movable knife to abut against the fixed knife.

[0026] When the lining strip is pulled out to between the moving knife and the fixed knife, cylinder 2 drives the swing block to swing through the piston rod, and the swing block drives the fixed knife to rotate through the hinge shaft. When the moving knife and the fixed knife are engaged, the lining strip is cut off. The spring on the hinge shaft is in a compressed state and there is a clamping force between the moving knives. This structure can make it easier for the moving knife and the fixed knife to cut the lining strip.

[0027] As an embodiment, the fixed knife fixing seat is fixed to the mold plate by screws, and the fixed knife is mounted on the fixed knife fixing seat. The screws that fix the fixed knife are also fixed together with the mounting seat.

[0028] In the above-mentioned automatic lining strip feeding device of a sleeve cuff machine, a compression spring strip is installed on the swing block or the hinge shaft, and the compression spring strip has a bending rod, and the bending rod is located in front of the movable knife.

[0029] When the second cylinder drives the swing block to swing, the bending rod of the compression spring strip also swings and presses the lining strip to the sleeve cut piece first, and then the moving knife engages with the moving knife and cuts the lining strip. This structure can position the lining strip well, so that the lining strip and the sleeve cut piece can be better combined.

[0030] The present invention also provides a sleeve slit machine, which comprises a frame, on which one or two automatic lining strip feeding devices are arranged. When there are two automatic lining strip feeding devices, the two are installed side by side on the frame.

[0031] Two automatic lining strip feeding devices are installed side by side on the frame, which can realize automatic lining strip feeding at the left and right workstations, with high work efficiency.

[0032] Compared with the prior art, the advantages of the present invention are as follows:

[0033] 1. This automatic lining strip feeding device can realize automatic adding of adhesive strips during the sleeve cuff production process, without cutting the thread in the middle. The sleeve cuff produced is of high quality, and the folding and sewing of the sleeve cuff are completed at one time, with high work efficiency.

[0034] 2. This automatic lining strip feeding device realizes the functions of automatic pulling, automatic feeding, automatic cutting, and positioning before cutting for the lining strip, which can be completed within 3 seconds. It has a high degree of automation and is more efficient than cutting the lining once for each sleeve when pulling the tube manually. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the automatic lining strip feeding device installed on the sleeve cuff machine;

[0036] Figure 2 yes Figure 1 A magnified view of part A in FIG.

[0037] Figure 3 This is a structural schematic diagram of the automatic lining strip feeding device;

[0038] Figure 4 It is a schematic diagram of the liner plate being installed on the connecting base;

[0039] Figure 5 It is a schematic diagram of the structure of the base plate;

[0040] Figure 6 It is a structural diagram of the connecting plate.

[0041] In the figure: 1 frame, 2 workbench, 3 vacuum shaping plate, 4 lining strip, 5 connecting base, 6 mold plate, 7 lifting connecting block, 8 lining strip guide assembly, 9 pulling lining strip assembly, 10 cutting lining strip assembly, 11 guard plate, 12 connecting shaft, 13 adjustment seat, 14 support arm, 15 lining mouth, 16 bottom plate, 17 guide groove, 18 resistance adjustment block, 19 U-shaped opening, 20 cylinder one, 21 connecting plate, 22 needle cylinder, 23 bending part, 24 vertical plate, 25 convex edge, 26 connecting block, 27 bending plate, 28 bolt, 29 strip groove, 30 mounting seat, 31 cylinder two, 32 swing block, 33 hinge shaft, 34 moving knife, 35 fixed knife, 36 spring, 37 compression spring strip, 38 bending rod, 39 automatic lining strip feeding device. DETAILED DESCRIPTION

[0042] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0043] like Figure 1-3 As shown, the sleeve crotch machine includes a frame 1, on which a workbench 2 and a vacuum shaping plate 3 are provided, and the vacuum shaping plate 3 is provided with a suction port that can be connected to a vacuum pump. The automatic lining strip feeding device 39 includes a connecting base 5, on which a lining strip pulling assembly 9 is also provided, and the lining strip pulling assembly 9 includes a cylinder 20 fixed on the connecting base 5, and the front end portion of the piston rod of the cylinder 20 is fixed with a connecting plate 21, and a lining strip retaining portion is installed on the connecting plate 21.

[0044] Preferably, a mold plate 6 is installed on the connecting base 5, and a shear strip assembly 10 is also provided on the connecting base 5.

[0045] The automatic lining strip feeding device 39 is installed on the sleeve slit machine, the lining strip 4 is wound on the lining strip guide assembly 8, and the end of the lining strip 4 extends from the lining strip pulling assembly 9. When working, the operator steps on the pedal once, and the lifting connection block 7 is driven by the mechanical structure of the sleeve slit machine to descend; then the sleeve slit piece is placed on the workbench 2 of the sleeve slit machine, and the pedal is stepped on again. At this time, the lining strip pulling assembly 9 clamps the end of the lining strip 4; the pedal is stepped on again, and the lining strip pulling assembly 9 pulls out a certain length of the lining strip 4 and hangs it on the sleeve slit machine. At a position about 10mm above the sleeve cut piece, one side of the lining strip 4 is aligned with the edge of the suction port of the vacuum shaping plate 3; step on the pedal again, the cutting lining strip assembly 10 cuts the lining strip 4; step on the pedal again, the vacuum pump starts, the vacuum shaping plate 3 suctions and fixes the sleeve cut piece and the lining strip 4, and then the cutting lining strip assembly 10 returns to the initial position, and the pulling lining strip assembly 9 is also reset. The above actions take about 6 seconds to complete, and you can also step on the pedal once to complete all the actions. Then, with the assistance of other folding molds, complete the sleeve folding; then place the large cut piece, step on the pedal again, and complete the fabric placement and material grabbing.

[0046] like Figure 3 As shown, in this embodiment, a lining strip guide assembly 8 is also provided on the connecting base 5, and the lining strip guide assembly 8 includes two oppositely arranged guard plates 11, and a rotatable connecting shaft 12 is installed between the guard plates 11. An adjustment seat 13 is fixedly provided on the connecting shaft 12, and the adjustment seat 13 is located on the outer side of one of the guard plates 11. A support arm 14 is installed on the adjustment seat 13, and the lower end of the support arm 14 is fixedly connected to the base 5.

[0047] The guard plate 11 and the connecting shaft 12 form a lining disc, the lining strip 4 is wound around the connecting shaft 12, and the two guard plates 11 are respectively located on both sides of the lining strip 4 to protect the lining strip 4. When in use, the lining strip 4 is pulled out from between the two guard plates 11. The support arm 14 is fixedly connected to the base 5 to support the lining disc.

[0048] like Figure 3 As shown, in this embodiment, a lifting connection block 7 is installed on the connecting base 5, and the lifting connection block 7 can be connected to the frame 1 in a movable manner up and down. The lifting connection block 7 is located on the front side of the guard plate 11, and a bottom plate 16 is provided on the connecting base 5. The bottom plate 16 has a guide groove 17. Preferably, a lining opening 15 is provided on the lifting connection block 7, and the interval between the lining opening 15 and the guard plate 11 is opposite, and the guide groove 17 is opposite to the lining opening 15.

[0049] The lining strip 4 on the lining disc passes through the lining opening 15 and then enters the guide groove 17. The guide groove 17 guides the lining strip 4 so that the lining strip 4 is basically not deviated in direction during being pulled out.

[0050] like Figure 4 and 5As shown, in this embodiment, a resistance adjustment block 18 is installed on the bottom plate 16 , and the resistance adjustment block 18 is located at the rear end of the guide groove 17 , and a U-shaped opening 19 is opened at the front end of the bottom wall of the guide groove 17 .

[0051] A U-shaped opening 19 is formed at the front end of the bottom wall of the guide groove 17 , which enables the lining strip assembly 9 to better clamp the lining strip 4 , thereby improving the convenience of operation.

[0052] like Figure 3 and 6 As shown, in this embodiment, the lining strip retaining portion includes a needle-type cylinder 22, the piston rod of the needle-type cylinder 22 extends vertically, the side of the connecting plate 21 is connected with a bending piece 23, the bending piece 23 includes a vertical plate 24, and the lower part of the vertical plate 24 has a transversely extending flange 25, and the flange 25 is located below the needle-type cylinder 22.

[0053] The piston rod of the needle cylinder 22 and the convex edge 25 of the bending part 23 form a clamp. After the piston rod of the needle cylinder 22 extends downward, it can clamp the end of the lining strip 4 together with the convex edge 25. When the cylinder 20 drives the piston rod 1 to move, the clamped lining strip 4 can be pulled outward.

[0054] As an embodiment, the cylinder 20 is fixed on the support arm 14.

[0055] like Figure 3 As shown, in this embodiment, a connecting block 26 is fixed to the front end of the piston rod of the cylinder 20, and a vertically extending bending plate 27 is provided on the connecting plate 21. The bending plate 27 and the connecting block 26 are fixed by bolts 28. A vertically extending strip groove 29 is provided on the bending plate 27, and the bolt 28 is penetrated in the strip groove 29 and can move in the strip groove 29.

[0056] The connecting plate 21 is connected to the piston rod of the cylinder 20 through the connecting block 26, and the two are fixed by bolts 28. By loosening the bolts 28, the position of the connecting plate 21 can be adjusted up and down, thereby adjusting the position of the needle cylinder 22 and the convex edge 25 (clip) on the bending part 23 according to the position of the lining strip 4, and the adaptability is good.

[0057] As an embodiment, the driving member of the lining strip pulling assembly 9 includes a cylinder 20, and a vacuum suction cup is fixed to the front end of the piston rod of the cylinder 20. The vacuum suction cup is connected to the vacuum equipment, and the vacuum equipment sucks air to generate negative pressure in the vacuum suction cup. At this time, the vacuum suction cup sucks the lining strip 4. After the piston rod of the cylinder 20 moves and pulls the lining strip 4 to a certain length, the vacuum suction cup is inflated, so that the negative air pressure in the vacuum suction cup changes to zero air pressure or slightly positive air pressure. At this time, the vacuum suction cup has no adsorption force on the lining strip 4, and it is separated from the lining strip 4, thereby completing the pulling of the lining strip 4.

[0058] like Figure 3As shown, in this embodiment, a mounting seat 30 and a shearing strip assembly 10 are fixed on the connecting base 5, and the shearing strip assembly 10 includes a cylinder 2 31, a movable knife 34 and a fixed knife 35. One end of the cylinder 2 31 is hinged on the mounting seat 30, and a swing block 32 is hinged on the piston rod of the cylinder 2 31. A hinge shaft 33 is installed on the swing block 32. The hinge shaft 33 is rotatably connected to one end of the mounting seat 30, a movable knife 34 is installed on the hinge shaft 33, and a fixed knife 35 is installed on the mounting seat 30.

[0059] Preferably, a spring 36 is sleeved on the hinge shaft 33 , and the spring 36 is located between the swing block 32 and the movable knife 34 . The spring 36 is in a compressed state and causes the movable knife 34 to abut against the fixed knife 35 .

[0060] When the lining strip 4 is pulled out to between the movable knife 34 and the fixed knife 35, the cylinder 2 31 drives the swing block 32 to swing through the piston rod, and the swing block 32 drives the fixed knife 35 to rotate through the hinge shaft 33. When the movable knife 34 and the fixed knife 35 are engaged, the lining strip 4 is cut off. The spring 36 on the hinge shaft 33 is in a compressed state and a clamping force is exerted between the movable knives 34 and 34. This structure enables the movable knife 34 and the fixed knife 35 to cut the lining strip 4 more easily.

[0061] As an embodiment, a mold plate 6 is installed on the connecting base 5 , and a fixed knife 35 is installed on the mold plate 6 .

[0062] The fixed knife fixing seat is fixed on the die plate 6 by screws, and the fixed knife 35 is installed on the fixed knife fixing seat. The screws for fixing the fixed knife 35 are fixed together with the mounting seat 30 at the same time.

[0063] like Figure 3 As shown, in this embodiment, a compression spring strip 37 is installed on the swing block 32 , and the compression spring strip 37 has a bending rod 38 , and the bending rod 38 is located in front of the movable knife 34 .

[0064] When the cylinder 2 31 drives the swing block 32 to swing, the bending rod 38 of the compression spring strip 37 also swings and presses the lining strip 4 to the sleeve slit piece first, and then the movable knife 34 engages with the movable knife 34 and cuts the lining strip 4. This structure can well position the lining strip 4, so that the lining strip 4 and the sleeve slit piece can be better combined.

[0065] As an embodiment, the compression spring strip 37 can also be installed on the hinge shaft 33.

[0066] The present invention also provides a sleeve slit machine, which includes a frame 1, on which one or two automatic lining strip feeding devices 39 are arranged. When there are two automatic lining strip feeding devices 39, the two automatic lining strip feeding devices 39 are installed side by side on the frame 1.

[0067] Two automatic lining strip feeding devices 39 are installed side by side on the frame 1, which can realize automatic lining strip feeding 4 at the left and right workstations, and the working efficiency is high.

[0068] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An automatic lining strip feeding device for a sleeve cuff machine, the sleeve cuff machine comprising a frame (1), a workbench (2) and a vacuum shaping plate (3) being arranged on the frame (1), a suction port being connectable to a vacuum pump being provided on the vacuum shaping plate (3), characterized in that: The automatic lining strip feeding device comprises a connecting base (5), a lining strip pulling assembly (9) is also arranged on the connecting base (5), the lining strip pulling assembly (9) comprises a cylinder 1 (20) fixed on the connecting base (5), a connecting plate (21) is fixed to the front end of the piston rod of the cylinder 1 (20), and a lining strip retaining portion is installed on the connecting plate (21).

2. The automatic lining strip feeding device of the sleeve crotch machine according to claim 1, characterized in that: A lining strip guide assembly (8) is also provided on the connecting base (5), and the lining strip guide assembly (8) comprises two oppositely arranged guard plates (11), a rotatable connecting shaft (12) is installed between the guard plates (11), an adjustment seat (13) is fixedly provided on the connecting shaft (12), the adjustment seat (13) is located on the outer side of one of the guard plates (11), a support arm (14) is installed on the adjustment seat (13), and the lower end of the support arm (14) is fixed on the connecting base (5).

3. The automatic lining strip feeding device of the sleeve opening machine according to claim 2, characterized in that: A lifting connection block (7) is installed on the connection base (5), and the lifting connection block (7) is connected to the frame (1) in a manner that it can move up and down. The lifting connection block (7) is located on the front side of the guard plate (11). A bottom plate (16) is provided on the connection base (5), and a guide groove (17) is provided on the bottom plate (16).

4. The automatic lining strip feeding device of the sleeve opening machine according to claim 3, characterized in that: A resistance adjustment block (18) is installed on the bottom plate (16), and the resistance adjustment block (18) is located at the rear end of the guide groove (17). A U-shaped opening (19) is provided at the front end of the bottom wall of the guide groove (17).

5. The automatic lining strip feeding device of the sleeve opening machine according to claim 1, characterized in that: The lining strip retaining portion comprises a needle-type cylinder (22), the piston rod of the needle-type cylinder (22) extends vertically, the side of the connecting plate (21) is connected with a bending piece (23), the bending piece (23) comprises a vertical plate (24), the lower part of the vertical plate (24) has a convex edge (25) extending laterally, and the convex edge (25) is located below the needle-type cylinder (22).

6. The automatic lining strip feeding device of the sleeve opening machine according to claim 5, characterized in that: A connecting block (26) is fixed to the front end of the piston rod of the cylinder 1 (20); a vertically extending bent plate (27) is provided on the connecting plate (21); the bent plate (27) and the connecting block (26) are fixed by bolts (28); a vertically extending strip groove (29) is provided on the bent plate (27); the bolt (28) is inserted into the strip groove (29) and can move in the strip groove (29).

7. The automatic lining strip feeding device of the sleeve crotch machine according to claim 1, characterized in that: The connecting base (5) is also provided with a mounting base (30) and a shearing strip assembly (10). The shearing strip assembly (10) comprises a second cylinder (31), a movable knife (34) and a fixed knife (35). The fixed knife (35) is fixedly mounted on the connecting base (5). One end of the second cylinder (31) is mounted on the mounting base (30). A swing block (32) is hingedly connected to the piston rod of the second cylinder (31). A hinge shaft (33) is mounted on the swing block (32). The hinge shaft (33) is rotatably connected to one end of the mounting base (30). The movable knife (34) is mounted on the hinge shaft (33).

8. The automatic lining strip feeding device of the sleeve opening machine according to claim 1, characterized in that: A mold plate (6) is installed on the connecting base (5), and a fixed knife (35) is installed on the mold plate (6).

9. The automatic lining strip feeding device of the sleeve opening machine according to claim 7, characterized in that: A spring (36) is sleeved on the hinge shaft (33), and the spring (36) is located between the swing block (32) and the movable knife (34). The spring (36) is in a compressed state and causes the movable knife (34) to abut against the fixed knife (35).

10. The automatic lining strip feeding device of the sleeve opening machine according to claim 9, characterized in that: A compression spring strip (37) is installed on the swing block (32) or the hinge shaft (33). The compression spring strip (37) has a bending rod (38). The bending rod (38) is located in front of the movable knife (34).

11. A sleeve opening machine, comprising a frame (1), characterized in that: The frame (1) is provided with one or two automatic lining strip feeding devices (39) according to any one of claims 1 to 10. When there are two automatic lining strip feeding devices (39), the two devices are installed side by side on the frame (1).

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