Method for preventing the rolling of the fabric end on a circular knitting machine

Abstract

The present application relates to the technical field of circular knitting machine, and provides a method for preventing the rolled edge of cloth head of a circular knitting machine, which comprises the following steps: S1, the cloth produced by the circular knitting machine passes through a cloth clamping rod and then winds around a cloth winding rod; S2, the cloth clamping rod clamps the cloth; S3, the cloth winding rod unwinds a section of the cloth; S4, a cloth cutting table rises and is placed on the lower surface of the section of the cloth; S5, adhesive tape is attached to the upper surface of the section of the cloth along the length direction of the cloth cutting table; S6, the cloth and the adhesive tape are cut at the same time along the length direction of the cloth cutting table; and S7, the cloth roll on the cloth winding rod is removed. The present application has the advantage that before the cloth produced by the circular knitting machine is cut, the cloth winding rod moves from the cloth winding position to the cloth cutting position and unwinds a section of the cloth, the cloth cutting table is placed on the lower surface of the section of the cloth, adhesive tape is attached to the upper surface of the section of the cloth, and the cloth and the adhesive tape are cut at the same time, so that the cut cloth head is attached with adhesive tape, thereby preventing the rolled edge of the cloth head.

Description

Technical Field

[0001] This invention relates to the field of circular knitting machine technology, and more specifically to a method for preventing the fabric end of a circular knitting machine from curling. Background Technology

[0002] A circular knitting machine, also known as a circular weft knitting machine, consists of a frame, yarn feeding device, transmission device, lubrication and dust removal device, electrical control device, pull-and-wind device, and other auxiliary devices. The pull-and-wind device's function is to pull the greige fabric woven by the circular knitting machine from the knitting area and wind it into a cylindrical roll using a fabric winding rod for subsequent use.

[0003] After the fabric is wound to a certain thickness, the circular knitting machine needs to be temporarily stopped to cut the greige fabric. The cut end of the greige fabric is the fabric end. Then, the roll rod is removed manually, and the fabric is rolled off the roll rod. The roll rod is then reassembled in the predetermined position, and the greige fabric is wound around the roll rod. Finally, the circular knitting machine is started to continue operation.

[0004] In the current knitting industry, the fabric ends of circular knitting machines are prone to curling after being cut and laid out. Figure 1 The problem is that after the greige fabric is wound onto the roll bar, the rolled ends of the inner fabric layer cause unevenness in the roll, resulting in embossing. Furthermore, due to the rolled ends of the greige fabric, it is difficult to automatically align the seams during the unwinding process in the dyeing and finishing stages. Therefore, a method to prevent the rolled ends of the fabric from curling during the unwinding process of a circular knitting machine is needed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a method for preventing the fabric end of a circular knitting machine from curling.

[0006] This invention is implemented as follows: A method for preventing fabric ends from curling at the bottom of a circular knitting machine, comprising the following steps:

[0007] S1. The greige fabric produced by the circular knitting machine passes downward through the clamping rod and then is wound around the roll rod;

[0008] S2. The clamping rod clamps the fabric;

[0009] S3. The fabric rolling rod moves from the fabric rolling position to the fabric cutting position, and at the same time, the fabric rolling rod rotates counterclockwise to unroll out a section of greige fabric;

[0010] S4. The cutting table is located between the fabric rolling position and the fabric cutting position. The cutting table is raised and placed on the lower surface of the section of fabric.

[0011] S5. Along the length of the cutting table, attach adhesive tape to the upper surface of the section of fabric.

[0012] S6. Cut the raw fabric and the adhesive tape simultaneously along the length of the cutting table;

[0013] S7. Remove the fabric roll located on the fabric rolling rod.

[0014] Furthermore, it also includes the following steps:

[0015] S8. Grasp the end of the fabric, and the cutting table descends;

[0016] S9. The body of the fabric rolling rod has a groove, and the end of the fabric is inserted into the groove;

[0017] S10. The fabric rolling rod moves from the fabric cutting position to the fabric rolling position, and at the same time, the fabric rolling rod rotates clockwise to roll back the greige fabric, and the fabric clamping rod releases the greige fabric.

[0018] Furthermore, in S4, the upper surface of the cutting table has a cutting groove, a crossbeam is located directly above the cutting table, an automatic adhesive tape applicator is installed at the left end of the crossbeam, and a cutting knife is installed at the right end of the crossbeam.

[0019] S5 specifically refers to: along the length of the cutting table, the automatic adhesive tape applicator moves from left to right and applies adhesive tape to the upper surface of the section of fabric.

[0020] Specifically, S6 involves the cutting knife moving from right to left along the length of the cutting table, simultaneously cutting the raw fabric and the adhesive tape.

[0021] Furthermore, S5 also includes: a tape application endpoint position sensor is installed on the right end of the front side of the crossbeam; when the tape application endpoint position sensor detects the automatic tape application machine, the automatic tape application machine stops applying tape and returns to the starting position.

[0022] The S6 further includes: a cutting end position sensor is installed on the left end of the rear side of the crossbeam. When the cutting end position sensor detects the cutting knife, the cutting knife stops cutting and returns to the starting position.

[0023] Furthermore, the cutting knife is an automatic electric scissor that cuts the fabric from the middle of the adhesive tape.

[0024] Further, S8 specifically involves: using a gripping robotic arm to grasp the end of the fabric, and the cutting table lowering;

[0025] Specifically, S9 involves the following: the body of the fabric rolling rod has a groove, the gripping robot inserts the end of the greige fabric into the groove, and then the gripping robot releases the end of the greige fabric.

[0026] Furthermore, the gripping robotic arms are pneumatic fingers, and the two gripping robotic arms are located on the left and right sides of the fabric, respectively.

[0027] Furthermore, S3 also includes: a fabric cutting position sensor installed at the fabric cutting position, wherein when the fabric cutting position sensor detects the fabric winding rod, the fabric winding rod stops moving and rotating;

[0028] The S10 further includes: a fabric roll position sensor installed at the fabric roll position, wherein when the fabric roll position sensor detects the fabric roll rod, the fabric roll rod stops moving and rotating.

[0029] Further, S1 specifically refers to: the fabric produced by the circular knitting machine passes between the clamping rod and the limiting rod, and then is wound around the rolling rod. The position of the limiting rod is fixed, and the clamping rod is a pneumatic clamping rod.

[0030] Furthermore, the depth of the groove is equal to half the width of the adhesive tape.

[0031] The advantages of this invention are:

[0032] 1. Before the fabric produced by the circular knitting machine is cut, the fabric roll bar moves from the roll position to the cut position and unrolls a section of fabric. The cutting table is placed on the lower surface of the fabric, and then adhesive tape is attached to the upper surface of the fabric. At the same time, the fabric and adhesive tape are cut. In this way, the cut fabric ends are covered with adhesive tape to prevent the fabric ends from curling.

[0033] 2. Before the fabric produced by the circular knitting machine is cut, the fabric roll bar moves from the roll position to the cut position and unrolls a section of fabric. The cutting table is placed on the lower surface of the fabric, and then adhesive tape is attached to the upper surface of the fabric. At the same time, the fabric and adhesive tape are cut. The fabric ends obtained in this way are covered with adhesive tape to prevent the fabric ends from curling.

[0034] 3. Unwind a section of the greige fabric to prevent it from stretching and deforming; this unwinding section also makes room for applying adhesive tape and cutting; after inserting the tape-covered fabric end into the groove of the roll rod, the roll rod moves from the cutting position to the rolling position, at which point the roll rod rotates clockwise to roll the fabric back.

[0035] 4. The fabric rolling rod has a groove. Inserting the fabric end with adhesive tape into this groove helps prevent the fabric end from curling during the winding process. This effectively avoids uneven rolling caused by the inner fabric end curling, which can lead to embossing. The fabric end not curling helps to automatically align the seams in subsequent dyeing and finishing processes.

[0036] 5. The pneumatic clamping rod automatically clamps the greige fabric when the machine stops and the fabric is dropped, preventing the fabric end from sliding back due to the release of elasticity after cutting; when the fabric roll position sensor detects that the fabric roll rod is in place, the pneumatic clamping rod automatically releases the greige fabric, and the circular knitting machine continues to start producing fabric rolls.

[0037] 6. The automatic tape applicator and the fabric cutter are located at opposite ends of the crossbeam. The automatic tape applicator first applies the tape to the upper surface of the fabric from left to right. After being detected by the tape application endpoint sensor, it returns to the starting position. The fabric cutter then cuts the fabric and tape from right to left. After being detected by the cut end position sensor, it returns to the starting position. The tape application and cutting are performed automatically, improving the fabric feeding efficiency. Attached Figure Description

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0039] Figure 1 This is a schematic diagram showing the curling of the fabric end after the greige fabric is cut and laid in the background art.

[0040] Figure 2 This is a flowchart illustrating the method for preventing fabric roll-up at the end of a circular knitting machine according to the present invention.

[0041] Figure 3 This is a schematic diagram showing the positions of the frame, clamping rod, rolling rod, cutting table, cutting knife, and automatic adhesive tape applicator in this invention.

[0042] Figure 4 This is a schematic diagram of the fabric clamping device in this invention.

[0043] Figure 5 This is a schematic diagram of the fabric clamping rod releasing the fabric and the fabric rolling rod being in the rolling position in this invention.

[0044] Figure 6 This is a schematic diagram of the fabric clamping rod clamping the fabric and the cutting table placed on the lower surface of the fabric in this invention.

[0045] Figure 7 This is a schematic diagram showing the positions of the fabric cutting table, fabric cutting knife, crossbeam, and automatic adhesive tape applicator in this invention.

[0046] Figure 8 This is a schematic diagram of the simultaneous cutting of the fabric and adhesive tape in this invention.

[0047] Figure 9 This is a schematic diagram of the gripping robot arm grasping the fabric in this invention.

[0048] Figure 10 This is a schematic diagram of the gripping robot arm in this invention preparing to insert the fabric end into the groove of the fabric rolling rod.

[0049] Figure 11This is a schematic diagram showing that the gripping robot arm in this invention has already inserted the fabric end into the groove of the fabric rolling rod.

[0050] Reference numerals: Frame 1; Fabric clamping device 2; First support 21; Fabric clamping rod 22; Clamping control assembly 23; Limiting rod 24; Fabric cutting device 3; Fabric cutting table 31; Fabric cutting groove 311; Crossbeam 32; Fabric cutting knife 33; Up and down moving assembly 34; Fabric rolling device 4; Second support 41; Fabric rolling rod 42; Groove 421; Forward and backward moving assembly 43; Rotation control assembly 44; Gripping robot 45; Insertion control assembly 46; Automatic adhesive tape applicator 5; Adhesive tape 51; Grease fabric 6; Fabric end 61; Roll end 62. Detailed Implementation

[0051] This invention provides a method for preventing fabric ends from curling after the fabric is laid out on a circular knitting machine. This method overcomes the shortcoming of the prior art where the fabric ends of the greige fabric on a circular knitting machine are prone to curling after being laid out and cut, and achieves the technical effect of preventing fabric ends from curling.

[0052] The overall concept of the technical solution of this invention is as follows:

[0053] The fabric produced by the circular knitting machine passes through the clamping rod and is then wound onto the winding rod. The circular knitting machine pauses operation. Before the fabric is cut, the clamping rod clamps the fabric, and the winding rod moves to the cutting position and unwinds a section of fabric. The unwound fabric is positioned above the cutting table. The cutting table rises and first rests on the lower surface of the fabric. An automatic adhesive tape applicator then applies adhesive tape to the upper surface of the fabric. Simultaneously, the cutting blade cuts both the fabric and the adhesive tape, resulting in a fabric end with adhesive tape. The adhesive tape reinforces the fabric end and prevents it from curling. The cutting table descends, and a gripping robot inserts the tape-covered fabric end into the groove of the winding rod to further prevent curling. Then, the winding rod moves to the winding position and winds the fabric back up. Finally, the clamping rod releases the fabric, and the circular knitting machine resumes operation.

[0054] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0055] See Figures 1 to 11 The preferred embodiment of the present invention.

[0056] A method for preventing fabric ends from curling at the bottom of a circular knitting machine includes the following steps:

[0057] S1. The greige fabric 6 produced by the circular knitting machine passes downward through the clamping rod 22 and is then wound around the rolling rod 42.

[0058] Specifically, the fabric 6 produced by the circular knitting machine passes between the clamping rod 22 and the limiting rod 24, and is then wound around the rolling rod 42. The position of the limiting rod 24 is fixed, and the clamping rod 22 is a pneumatic clamping rod 22.

[0059] S2, the clamping rod 22 clamps the greige fabric 6; at this time, the circular knitting machine is in a temporarily stopped state.

[0060] S3. The fabric rolling rod 42 moves from the fabric rolling position to the fabric cutting position, and at the same time, the fabric rolling rod 42 rotates counterclockwise to unroll out a section of the greige fabric 6; unrolling out a section of the greige fabric 6 here prevents the greige fabric 6 from being stretched and deformed; this unrolled section of the fabric is also used to make room for applying adhesive tape and cutting.

[0061] A fabric cutting position sensor (not shown) is installed at the fabric cutting position. When the fabric cutting position sensor detects the fabric winding rod 42, the fabric winding rod 42 stops moving and rotating.

[0062] S4. The cutting table 31 is located between the fabric rolling position and the fabric cutting position. The cutting table 31 is raised and placed on the lower surface of the section of greige fabric 6.

[0063] The upper surface of the cutting table 31 has a cutting groove 311, and a crossbeam is located directly above the cutting table 31. An automatic adhesive tape applicator 5 is installed at the left end of the crossbeam 32, and a cutting knife 33 is installed at the right end of the crossbeam 32.

[0064] S5. Along the length of the cutting table 31, the automatic tape applicator 5 moves from left to right and applies tape 51 to the upper surface of the section of raw fabric 6; the width of tape 51 is 6cm.

[0065] A tape application endpoint position sensor (not shown) is installed on the right end of the front side of the crossbeam 32. When the tape application endpoint position sensor detects the automatic tape application machine 5, the automatic tape application machine 51 stops applying tape and returns to the starting position.

[0066] S6. Along the length of the cutting table 31, the cutting knife 33 moves from right to left, simultaneously cutting the greige fabric 6 and the adhesive tape 51; the cutting groove 311 cooperates with the cutting knife 33 to help completely cut the greige fabric 6; the cut end of the greige fabric 6 is the fabric end 61, and the fabric end 61 obtained in this way is covered with adhesive tape 51, which serves to reinforce the fabric end 61 and prevent the fabric end from curling 62.

[0067] A cutting end position sensor (not shown) is installed on the left side of the rear side of the crossbeam 32. When the cutting end position sensor detects the cutting blade 33, the cutting blade 33 stops cutting and returns to the starting position.

[0068] The fabric cutter 33 is an automatic electric scissor that cuts the raw fabric 6 from the middle of the adhesive tape 51. A 3cm wide strip of adhesive tape 51 is left over the cut ends 61 to prevent the fabric ends from curling 62.

[0069] S7. Remove the fabric roll located on the fabric roll rod 42.

[0070] S8. Using the gripping robot arm 45, the fabric end 61 of the greige fabric 6 is grasped, and the cutting table 31 is lowered.

[0071] The lowering of the cutting table 31 is to create clearance, avoid obstructing the subsequent insertion action of the gripping robot 45, and avoid collision with the fabric rolling rod 42.

[0072] The gripping robotic arms 45 are pneumatic fingers, and two gripping robotic arms 45 are located on the left and right sides of the fabric 6, respectively. The groove 421 of the fabric winding rod 42 faces the gripping robotic arms 45.

[0073] The fabric end 61 of the greige fabric 6 can be manually inserted into the groove 421, or the gripping robot 45 can be used to automatically insert the fabric end 61 of the greige fabric 6 into the groove 421.

[0074] S9. The roll rod 42 has a groove 421, into which the end piece 61 of the raw fabric 6 is inserted. Specifically, the gripping robot 45 inserts the end piece 61 of the raw fabric 6 into the groove 421, and then releases the end piece 61 of the raw fabric 6. The depth of the groove 421 is equal to half the width of the adhesive tape 51.

[0075] S10, the fabric rolling rod 42 moves from the fabric cutting position to the fabric rolling position, and at the same time the fabric rolling rod 42 rotates clockwise to roll back the greige fabric 6; the fabric clamping rod 22 releases the greige fabric 6.

[0076] A fabric roll position sensor (not shown) is installed at the fabric roll position. When the fabric roll position sensor detects the fabric roll rod 42, the fabric roll rod 42 stops moving and rotating. After the clamping rod 22 releases the greige fabric 6, the circular knitting machine continues to produce fabric rolls.

[0077] In this embodiment of the invention, the cutting table 31 is first raised, and an automatic adhesive tape applicator 5 is used to apply adhesive tape 51 to the lining fabric 6 directly above the cutting table 31. Then, an automatic electric shears is used to simultaneously cut the adhesive tape 51 and the lining fabric 6 from the middle position. The resulting fabric end 61 is covered with adhesive tape 51, preventing the fabric end from curling. Automated application of adhesive tape and cutting improves fabric feeding efficiency. Inserting the fabric end 61 with adhesive tape 51 into the groove 421 helps prevent the fabric end from curling during the winding of the lining fabric 6, effectively avoiding uneven rolling and imprinting caused by the curling of the inner fabric end. The non-curling fabric end facilitates automatic alignment of seams in subsequent dyeing and finishing processes.

[0078] According to the method of the present invention, a device for preventing the fabric end of a circular knitting machine from curling is manufactured.

[0079] A device for preventing fabric roll-up at the end of a circular knitting machine, comprising:

[0080] Frame 1, fabric clamping device 2, fabric cutting device 3, fabric rolling device 4, and automatic adhesive tape applicator 5;

[0081] The fabric clamping device 2 includes a first support base 21, a fabric clamping rod 22, and a clamping control component 23. The support base is fixedly connected to the frame 1, and the fabric clamping rod 22 is connected to the first support base 21 through the clamping control component 23.

[0082] The fabric cutting device 3 includes a fabric cutting table 31, a crossbeam 32, a fabric cutting knife 33, and a vertical moving assembly 34. The fabric cutting table 31 is connected to the frame 1 through the vertical moving assembly 34. The crossbeam 32 is fixedly connected to the frame 1 and is located above the fabric cutting table 31. The fabric cutting knife 33 is mounted on the crossbeam 32 and can also move along the length of the fabric cutting table 31.

[0083] The automatic tape applicator 5 is installed on the crossbeam 32 and can also move along the length of the fabric cutting table 31.

[0084] The fabric rolling device 4 includes a second support base 41, a fabric rolling rod 42, a front-to-back moving assembly 43, and a rotation control assembly 44. The fabric rolling rod 42 is connected to the second support base 41 through the rotation control assembly 44, and the second support base 41 is connected to the frame 1 through the front-to-back moving assembly 43. The fabric rolling rod 42 is located below the fabric clamping rod 22 and can also move back and forth above the fabric cutting table 31.

[0085] The greige fabric 6 produced by the circular knitting machine passes through the clamping rod 22 and is then wound around the rolling rod 42. The cutting table 31 is used to place the greige fabric 6 on the lower surface. The automatic adhesive tape applicator 5 is used to apply adhesive tape 51 to the upper surface of the greige fabric 6. The cutting knife 33 is used to simultaneously cut the greige fabric 6 and the adhesive tape 51.

[0086] In this device, the cutting table 31 is placed on the lower surface of the greige fabric 6. The automatic tape applicator 5 applies tape 51 to the greige fabric 6 directly above the cutting table 31. Then, the cutting knife 33 cuts the tape 51 and the greige fabric 6 at the same time. The cut fabric end 61 is covered with tape 51 to prevent the fabric end from curling.

[0087] The winding rod 42 has a groove 421 on its body, into which the end 61 of the greige fabric 6 can be inserted. The depth of the groove 421 is equal to half the width of the adhesive tape 51. The width of the adhesive tape 51 is 6cm; the depth of the groove 421 is 3cm. This helps prevent the end of the fabric from curling during the winding of the greige fabric 6, effectively avoiding uneven winding and imprinting caused by the curling of the inner fabric end. Preventing the end of the fabric from curling facilitates automatic alignment of the seam allowances in subsequent dyeing and finishing processes.

[0088] The fabric rolling device 4 further includes a gripping robot 45 and a feeding control component 46. The gripping robot 45 is connected to the frame 1 via the feeding control component 46, and the two gripping robots 45 are located on the left and right sides of the fabric 6, respectively. The gripping robot 45 is used to grasp the fabric end 61, and under the action of the feeding control component 46, it automatically feeds the fabric end 61 into the groove 421.

[0089] The fabric clamping device 2 also includes a limiting rod 24, which is fixedly connected to the frame 1. The fabric 6 passes between the limiting rod 24 and the clamping rod 22. Under the action of the clamping control assembly 23, the clamping rod 22 moves closer to the limiting rod 24 to clamp the fabric 6, and moves away from the limiting rod 24 to release the fabric 6.

[0090] The upper surface of the cutting table 31 has a cutting groove 311. The automatic tape applicator 5 and the cutting knife 33 are respectively installed at both ends of the crossbeam 32. The starting point of the automatic tape applicator 5 is at the left end of the crossbeam 32, and the starting point of the cutting knife 33 is at the right end of the crossbeam 32.

[0091] The fabric cutting device 3 also includes an adhesive tape end position sensor (not shown) and a fabric cutting end position sensor (not shown). The adhesive tape end position sensor is installed on the right end of the front side of the crossbeam 32, and the fabric cutting end position sensor is installed on the left end of the rear side of the crossbeam 32.

[0092] When the tape application endpoint position sensor detects the automatic tape application machine 5, the automatic tape application machine 5 retracts to the left end of the crossbeam 32; when the fabric cutting endpoint position sensor detects the fabric cutter 33, the fabric cutter 33 retracts to the right end of the crossbeam 32. The beneficial effect here is that tape application and cutting are performed automatically and orderly. When the automatic tape application machine 5 moves, the tape application endpoint position sensor is activated, and the fabric cutting endpoint position sensor is deactivated. When the fabric cutter 33 moves, the fabric cutting endpoint position sensor is activated, and the tape application endpoint position sensor is deactivated.

[0093] The fabric cutter 33 is an automatic electric cutter that cuts the raw fabric 6 from the middle of the adhesive tape 51. A 3cm wide strip of adhesive tape 51 is left over the cut ends of the fabric 61 to prevent the ends from curling.

[0094] The fabric rolling device 4 also includes a fabric rolling position sensor (not shown) and a fabric cutting position sensor (not shown). The fabric rolling position sensor is installed at the rear end of the frame 1, and the fabric cutting position sensor is installed at the front end of the frame 1. Both the fabric rolling position sensor and the fabric cutting position sensor are electrically connected to the front and rear moving component 43 and the rotation control component 44, and are used to detect the position of the second support 41.

[0095] When the position of the second support 41 moves from the fabric roll position sensor to the fabric cut position sensor, the rotation control component 44 causes the fabric roll rod 42 to rotate counterclockwise; the fabric roll rod 42 unrolls out a section of raw fabric 6, which is used for applying adhesive tape and cutting.

[0096] As the position of the second support 41 moves from the cut fabric position sensor to the roll fabric position sensor, the rotation control assembly 44 causes the winding rod to rotate clockwise. The roll fabric rod 42 rolls back the greige fabric 6, thereby straightening the greige fabric 6, so that the greige fabric 6 is better wound around the roll fabric rod 42 when the circular knitting machine re-produces the roll fabric.

[0097] When the machine stops and the fabric is unloaded, the pneumatic clamping rod 22 automatically clamps the greige fabric 6 to prevent the cut fabric end 61 from sliding back due to the relaxation of elasticity; when the fabric roll position sensor detects that the fabric roll rod 42 is in place, the pneumatic clamping rod 22 automatically releases the greige fabric 6, and the circular knitting machine continues to start producing fabric rolls.

[0098] The clamping control component 23 is a first telescopic cylinder, the up-and-down movement component 34 is a first ball screw, the forward-and-backward movement component 43 is a second ball screw, the rotation control component 44 is a servo motor, the gripping manipulator 45 is a pneumatic finger, and the insertion control component 46 is a second telescopic cylinder. The insertion control component 46 causes the gripping manipulator 45 to move in space.

[0099] It also includes an AGV device (not shown), which is installed at the bottom of the frame 1 and is used to transport the fabric roll 42 and the raw fabric 6. An Automated Guided Vehicle (AGV) is an industrial vehicle that loads goods automatically or manually, automatically travels along a set route or pulls a cargo trolley to a designated location, and then loads and unloads goods automatically or manually. The AGV device transports the fabric roll taken from the fabric roll 42 to the designated location.

[0100] The fabric drop anti-rolling device for circular knitting machines also includes a control system based on existing technology. The control system is used to control the operating status of the clamping control component 23, the up-and-down moving component 34, the forward-and-backward moving component 43, the rotation control component 44, the gripping robot 45, the insertion control component 46, the automatic adhesive tape applicator 5, and the automatic electric scissors. The control system is also connected to various sensors to carry out the fabric drop operation in an orderly manner.

[0101] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A method for preventing fabric ends from curling at the bottom of a circular knitting machine, characterized in that, Includes the following steps: S1. The greige fabric produced by the circular knitting machine passes downward through the clamping rod and then is wound around the roll rod; S2. The clamping rod clamps the fabric; S3. The fabric rolling rod moves from the fabric rolling position to the fabric cutting position, and at the same time, the fabric rolling rod rotates counterclockwise to unroll out a section of greige fabric; S4. The cutting table is located between the fabric rolling position and the fabric cutting position. The cutting table is raised and placed on the lower surface of the section of fabric. The upper surface of the cutting table has a cutting groove, and a crossbeam is located directly above the cutting table. An automatic adhesive tape applicator is installed at the left end of the crossbeam, and a cutting knife is installed at the right end of the crossbeam. S5. Along the length of the cutting table, the automatic tape applicator moves from left to right and applies tape to the upper surface of the section of fabric. S6. Along the length of the cutting table, the cutting knife moves from right to left, simultaneously cutting the raw fabric and the adhesive tape; S7. Remove the fabric roll located on the fabric rolling rod.

2. The method for preventing fabric roll-up at the end of a circular knitting machine according to claim 1, characterized in that, It also includes the following steps: S8. Grasp the end of the fabric, and the cutting table descends; S9. The body of the fabric rolling rod has a groove, and the end of the fabric is inserted into the groove; S10. The fabric rolling rod moves from the fabric cutting position to the fabric rolling position, and at the same time, the fabric rolling rod rotates clockwise to roll back the greige fabric, and the fabric clamping rod releases the greige fabric.

3. A method for preventing fabric roll-up at the end of a circular knitting machine according to claim 2, characterized in that, The S5 further includes: a tape application endpoint position sensor is installed at the right end of the front side of the crossbeam. When the tape application endpoint position sensor detects the automatic tape application machine, the automatic tape application machine stops applying tape and returns to the starting position. The S6 further includes: a cutting end position sensor is installed on the left end of the rear side of the crossbeam. When the cutting end position sensor detects the cutting knife, the cutting knife stops cutting and returns to the starting position.

4. A method for preventing fabric roll-up at the end of a circular knitting machine according to claim 1, characterized in that, The cutting knife is an automatic electric scissor that cuts the fabric from the middle of the adhesive tape.

5. A method for preventing fabric roll-up at the end of a circular knitting machine according to claim 2, characterized in that, Specifically, S8 involves using a gripping robotic arm to grasp the end of the greige fabric, causing the cutting table to descend. Specifically, S9 involves the following: the body of the fabric rolling rod has a groove, the gripping robot inserts the end of the greige fabric into the groove, and then the gripping robot releases the end of the greige fabric.

6. A method for preventing fabric roll-up at the end of a circular knitting machine according to claim 5, characterized in that, The gripping robotic arms are pneumatic fingers, and the two gripping robotic arms are located on the left and right sides of the fabric, respectively.

7. A method for preventing fabric roll-up at the end of a circular knitting machine according to claim 2, characterized in that, The S3 further includes: a fabric cutting position sensor installed at the fabric cutting position, wherein when the fabric cutting position sensor detects the fabric winding rod, the fabric winding rod stops moving and rotating; The S10 further includes: a fabric roll position sensor installed at the fabric roll position, wherein when the fabric roll position sensor detects the fabric roll rod, the fabric roll rod stops moving and rotating.

8. A method for preventing fabric roll-up at the end of a circular knitting machine according to claim 1, characterized in that, Specifically, S1 is as follows: the fabric produced by the circular knitting machine passes between the clamping rod and the limiting rod, and then is wound around the rolling rod. The position of the limiting rod is fixed, and the clamping rod is a pneumatic clamping rod.

9. A method for preventing fabric roll-up at the end of a circular knitting machine according to claim 2, characterized in that, The depth of the groove is equal to half the width of the adhesive tape.

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