Reverse tensioning type rolling and cutting device of fabric warp knitting machine

Abstract

The utility model relates to the technical field of fabric cutting, in particular to a reverse tensioning type winding and cutting device of a fabric warp knitting machine, which comprises a machine shell, a fabric conveying roller arranged on the machine shell and used for conveying fabric and a bearing roller used for bearing the fabric to be cut on the fabric conveying roller. The winding and cutting-off device further comprises a cutting adjusting mechanism and a tensioning adjusting mechanism. The cutting adjusting mechanism is arranged at the top of the machine shell and located on one side of the fabric conveying roller. The cutting adjusting mechanism comprises a cutting roller and a plurality of cutting knives which are arranged on the cutting roller and distributed in the arrangement direction of the cutting roller at equal intervals. The cutting adjusting mechanism further comprises a mounting frame and a moving part which is arranged on the mounting frame and used for driving the cutting knife to horizontally slide in the arrangement direction of the bearing roller. According to the technical scheme, through the cutting adjusting mechanism, the position of the cutting knife is independently adjusted, and the cutting requirements of different fabrics are met.

Description

Technical Field

[0001] The utility model relates to the technical field of fabric cutting, in particular to a reverse tensioning winding and cutting device of a fabric warp knitting machine. Background Art

[0002] In the production process of warp knitting machines, the winding and cutting device plays a vital role. However, in the prior art, a common problem is that it is not convenient to adjust the position of the cutting knife individually. Traditional winding and cutting devices often adopt a fixed cutting knife design, and once its position is determined, it is difficult to flexibly adjust it according to actual needs.

[0003] Specifically, during the warp knitting process, the fabric needs to be precisely cut to the required length or specifications. However, due to the differences in fabric material, thickness, and warp knitting process, the position and cutting force of the cutting knife often need to be adjusted accordingly to ensure the cutting effect and fabric quality. However, the traditional fixed cutting knife design limits the flexibility of this adjustment, making it difficult to achieve the ideal cutting effect in actual operation.

[0004] A Chinese patent (authorization announcement number CN220886307U) discloses a winding and cutting device for a warp knitting machine for warp knitted fabrics, which can clamp the position of the warp knitted fabric to be cut by a positioning component that positions the two sides of the warp knitted fabric to be cut. This can solve the problem that the current cutting structure cannot position the two sides of the warp knitted fabric to be cut when cutting the warp knitted fabric, and can avoid the uneven incision when cutting the warp knitted fabric to a certain extent, thereby improving the cutting quality.

[0005] However, in actual use, since the cutting knife is usually fixed in a certain position, it is difficult to quickly adjust it according to changes in fabric type and cutting requirements, which limits the flexibility and adaptability of the cutting operation and makes it impossible for the operator to fine-tune the position of the cutting knife according to the specific situation to achieve the best cutting effect. Utility Model Content

[0006] In view of the above problems, a reverse tension winding and cutting device for a fabric warp knitting machine is provided, which solves the problem of inconvenient adjustment of the position of the cutting knife through a cutting adjustment mechanism.

[0007] In order to solve the problems of the prior art, the utility model provides a reverse tensioning winding and cutting device of a fabric warp knitting machine, comprising a casing, a conveying fabric roller arranged on the casing for conveying fabric, and a supporting roller for receiving the fabric to be cut on the conveying fabric roller, the winding and cutting device also comprises a cutting adjustment mechanism and a tensioning adjustment mechanism; the cutting adjustment mechanism is arranged on the top of the casing and located on one side of the conveying fabric roller, the cutting adjustment mechanism comprises a cutting roller and a plurality of cutting knives arranged on the cutting roller and equidistantly distributed along the setting direction of the cutting roller; the cutting adjustment mechanism also comprises a mounting frame and a moving part arranged on the mounting frame for driving the cutting knife to slide horizontally along the setting direction of the supporting roller; the tensioning adjustment mechanism is arranged on the top of the casing and located on one side of the supporting roller, the tensioning adjustment mechanism is used to adjust the tension of the fabric to be cut during the conveying process.

[0008] Preferably, the cutting adjustment mechanism also includes an abutment block; a movable groove is opened on the cutting roller, and a plurality of movable grooves are arrayed along the circumferential direction of the cutting roller; circular grooves are opened on both sides of the cutting knife; the abutment block is horizontally slidably arranged on the mounting frame, and the abutment block is located on both sides of the cutting knife.

[0009] Preferably, the cutting adjustment mechanism further comprises a bearing rod; the bearing rod is rotatably arranged on the abutment block, and the bearing rod can slide in the circular groove, and when the cutting knife rotates, the bearing rod can rotate in the circular groove.

[0010] Preferably, the cutting adjustment mechanism also includes a multi-stage telescopic cylinder and a guide rod; a linear groove is opened on the mounting frame, and the abutment block can slide in the linear groove; the multi-stage telescopic cylinder has a pair and is respectively arranged on both sides of the mounting frame, and the output end of the multi-stage telescopic cylinder is fixedly connected to the moving part; the guide rod is arranged in the linear groove, and the abutment block and the guide rod are clearance-matched.

[0011] Preferably, the tensioning adjustment mechanism includes a setting plate, a swing rod and a clamping roller; the setting plate has a pair and is respectively arranged on the top of the casing, and the setting plate is located below the supporting roller; an oblique groove is opened on the setting plate; the swing rod has a pair and is rotatably mounted on the setting plate; the clamping roller is slidably arranged in the oblique groove, and one end of the clamping roller is rotatably connected to the swing rod, and when the swing rod rotates, it can drive the clamping roller to perform synchronous rotational motion along the oblique groove.

[0012] Preferably, the tensioning adjustment mechanism also includes a positioning rod and a rotating motor; the positioning rod is installed at the top of the setting plate, and the outside of the positioning rod is fixedly connected to the swing rod; the rotating motor is arranged at the top of the casing and above the setting plate, and the output end of the rotating motor is connected to the positioning rod.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model realizes the individual adjustment of the cutting knife position by setting a cutting adjustment mechanism, which is used to meet the cutting needs of different fabrics;

[0015] 2. The utility model provides an abutment block and a bearing rod, so that when the cutting roller and the cutting knife rotate, the abutment block will not be driven to rotate, and the cutting knife can perform a stable rotating cutting motion;

[0016] 3. The utility model is capable of adjusting the tension of the fabric during the conveying process and reversely tightening the fabric by setting a tension adjustment mechanism, and can flexibly respond to the tension requirements of fabrics of different materials, ensuring that the fabric fits tightly on the supporting roller, providing stable cutting conditions for the cutting knife, and thereby improving the stability and accuracy of the cutting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural diagram of a reverse tensioning winding and cutting device of a fabric warp knitting machine from a first viewing angle of the utility model;

[0018] Figure 2 This is a front view structural diagram of a reverse tensioning winding and cutting device of a fabric warp knitting machine of the utility model;

[0019] Figure 3 It is a partially cutaway three-dimensional structural diagram of a reverse tensioning winding and cutting device of a fabric warp knitting machine of the utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of a cutting roller and a cutting knife of a reverse tensioning winding and cutting device of a fabric warp knitting machine of the utility model;

[0021] Figure 5 It is a three-dimensional structural diagram of a reverse tensioning winding and cutting device of a fabric warp knitting machine of the utility model in a state where the pressing roller is turned over;

[0022] Figure 6 This is a three-dimensional structural diagram of a cutting roller and abutment block of a reverse tensioning winding and cutting device of a fabric warp knitting machine of the utility model;

[0023] Figure 7 yes Figure 6 Enlarged structural diagram at point A in the middle.

[0024] The numbers in the figure are: 1, casing; 11, first feed roller; 12, second feed roller; 2, conveying fabric roller; 3, supporting roller; 4, cutting adjustment mechanism; 41, cutting roller; 411, movable groove; 42, cutting knife; 421, circular groove; 43, mounting frame; 44, moving part; 45, abutment block; 46, bearing rod; 47, multi-stage telescopic cylinder; 48, guide rod; 5, tensioning adjustment mechanism; 51, setting plate; 511, oblique groove; 52, swing rod; 53, abutment roller; 54, positioning rod; 55, rotating motor. DETAILED DESCRIPTION

[0025] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] See also Figure 1-Figure 3 As shown, a reverse tension winding and cutting device of a fabric warp knitting machine comprises a casing 1, a conveying fabric roller 2 arranged on the casing 1 for conveying fabric, and a supporting roller 3 for receiving the fabric to be cut on the conveying fabric roller 2, and the winding and cutting device also comprises a cutting adjustment mechanism 4 and a tensioning adjustment mechanism 5; the cutting adjustment mechanism 4 is arranged on the top of the casing 1 and located on one side of the conveying fabric roller 2, the cutting adjustment mechanism 4 comprises a cutting roller 41 and a plurality of cutting knives 42 arranged on the cutting roller 41 and equidistantly distributed along the setting direction of the cutting roller 41; the cutting adjustment mechanism 4 also comprises a mounting frame 43 and a moving part 44 arranged on the mounting frame 43 for driving the cutting knives 42 to slide horizontally along the setting direction of the supporting roller 3; the tensioning adjustment mechanism 5 is arranged on the top of the casing 1 and located on one side of the supporting roller 3, and the tensioning adjustment mechanism 5 is used to adjust the tension of the fabric to be cut during the conveying process.

[0027] The housing 1 is also provided with a first rotary driver for driving the supporting roller 3 to rotate, and the first rotary driver is preferably a servo motor. The top of the housing 1 is also provided with a second rotary driver for driving the cutting roller 41 to rotate. The housing 1 is also provided with a first feed roller 11 and a second feed roller 12 for supporting the cut fabric on the supporting roller 3, and the first feed roller 11 and the second feed roller 12 are both controlled to rotate by the second rotary driver. When cutting the fabric, firstly, the fabric to be cut on the conveying fabric roller 2 is overlapped on the supporting roller 3, the first feed roller 11 and the second feed roller 12 in sequence, and the overlapping work of the fabric is completed at this time. Then the first rotary driver drives the supporting roller 3 to rotate, and the fabric to be cut can be conveyed during the rotation. At this time, the second rotary driver on the cutting roller 41 is started, driving the cutting roller 41 to rotate, and when the cutting roller 41 rotates, it can drive multiple cutting knives 42 to cut the fabric to be cut supported on the supporting roller 3. When the cutting position of the fabric to be cut needs to be adjusted, the moving part 44 can drive the cutting knife 42 to adjust the position, thereby adjusting the position of the cutting knife 42 to meet the cutting needs of different fabrics.

[0028] See also Figure 3-Figure 5 As shown, the cutting adjustment mechanism 4 also includes an abutment block 45; a movable groove 411 is opened on the cutting roller 41, and a plurality of movable grooves 411 are arrayed along the circumferential direction of the cutting roller 41; circular grooves 421 are opened on both sides of the cutting knife 42; the abutment block 45 is horizontally slidably set on the mounting frame 43, and the abutment block 45 is located on both sides of the cutting knife 42.

[0029] When the cutting roller 41 is driven by the second rotary driver to rotate, since the cutting blade 42 is installed in the movable groove 411 provided on the cutting roller 41 , the cutting blade 42 can be driven to rotate synchronously when the cutting roller 41 rotates.

[0030] See also Figure 6 and Figure 7 As shown, the cutting adjustment mechanism 4 also includes a bearing rod 46 ; the bearing rod 46 is rotatably disposed on the abutment block 45 , and the bearing rod 46 can slide in the circular groove 421 , and when the cutting knife 42 rotates, the bearing rod 46 can rotate in the circular groove 421 .

[0031] When the cutting roller 41 and the cutting knife 42 rotate, the bearing rod 46 arranged between the abutment blocks 45 can stably rotate in the circular groove 421 opened on the cutting knife 42. When the cutting roller 41 and the cutting knife 42 rotate, the bearing rod 46 arranged between the abutment blocks 45 can stably rotate in the circular groove 421 of the cutting knife 42, thereby ensuring that the abutment blocks 45 will not rotate with the cutting roller 41 and the cutting knife 42.

[0032] See also Figure 6 and Figure 7 As shown, the cutting adjustment mechanism 4 also includes a multi-stage telescopic cylinder 47 and a guide rod 48; a linear groove is opened on the mounting frame 43, and the abutment block 45 can slide in the linear groove; the multi-stage telescopic cylinder 47 has a pair and is respectively arranged on both sides of the mounting frame 43, and the output end of the multi-stage telescopic cylinder 47 is fixedly connected to the moving part 44; the guide rod 48 is arranged in the linear groove, and the abutment block 45 and the guide rod 48 are clearance-matched.

[0033] When the position of the cutting knife 42 needs to be adjusted, the multi-stage telescopic cylinder 47 is first started, thereby driving the moving part 44 and the abutment block 45 connected to the output end to slide stably in a horizontal straight line along the guide rod 48 provided on the mounting frame 43. When sliding, the cutting knife 42 can be driven to slide stably along the moving groove 411 provided on the cutting roller 41, and when sliding, the bearing rod 46 can slide in the circular groove 421 provided on the cutting knife 42, thereby realizing the adjustment of the position of the cutting knife 42 without affecting the rotation of the cutting knife 42, and realizing the adjustment of the position of the cutting knife 42 to meet the cutting needs of different fabrics.

[0034] See also Figure 5 As shown, the tensioning adjustment mechanism 5 includes a setting plate 51, a swing rod 52 and a clamping roller 53; the setting plate 51 has a pair and is respectively set on the top of the casing 1, and the setting plate 51 is located below the supporting roller 3; an oblique groove 511 is opened on the setting plate 51; the swing rod 52 has a pair and is rotatably installed on the setting plate 51; the clamping roller 53 is slidably set in the oblique groove 511, and one end of the clamping roller 53 is rotatably connected to the swing rod 52, and when the swing rod 52 rotates, it can drive the clamping roller 53 to perform synchronous rotation along the oblique groove 511.

[0035] When it is necessary to adjust the tension of the fabric during the conveying process, the swing rod 52 is rotated first. When the swing rod 52 rotates, it can drive the rotatably connected clamping roller 53 to perform synchronous rotation along the oblique groove 511 provided on the setting plate 51, and then the position of the clamping roller 53 can be adjusted. During the adjustment, the fabric during the conveying process can be clamped, and then the tension of the fabric during the conveying process can be adjusted. It can flexibly respond to the tension requirements of fabrics of different materials, and reversely tighten the fabric to ensure that the fabric fits tightly on the supporting roller 3, providing stable cutting conditions for the cutting knife 42, thereby improving the stability and accuracy of the cutting operation.

[0036] See also Figure 5 As shown, the tensioning adjustment mechanism 5 also includes a positioning rod 54 and a rotating motor 55; the positioning rod 54 is installed at the top of the setting plate 51, and one end of the positioning rod 54 is fixedly connected to the swing rod 52; the rotating motor 55 is arranged at the top of the casing 1 and is located above the setting plate 51, and the output end of the rotating motor 55 is connected to the positioning rod 54.

[0037] When it is necessary to drive the swing rod 52 to rotate, the rotating motor 55 is first started and drives the positioning rod 54 to rotate. When the positioning rod 54 rotates, it can drive the swing rod 52 to rotate, and then the swing rod 52 can be driven to rotate by the rotating motor 55 to achieve position adjustment of the clamping roller 53.

[0038] Working principle: When cutting the fabric to be cut, first, overlap the fabric to be cut on the conveying fabric roller 2 on the supporting roller 3, the first feed roller 11 and the second feed roller 12 in sequence to complete the overlapping of the fabric. Subsequently, the rotary drive is started and drives the supporting roller 3 to rotate, thereby conveying the fabric to be cut. At this time, the second rotary drive on the cutting roller 41 is started to drive the cutting roller 41 to rotate. The rotation of the cutting roller 41 then drives the multiple cutting knives 42 arranged thereon to cut the fabric to be cut supported on the supporting roller 3. If the cutting position of the cutting knife 42 needs to be adjusted, the multi-stage telescopic cylinder 47 is started, and the moving part 44 and the abutment block 45 connected to its output end will slide stably in a horizontal straight line along the guide rod 48 arranged on the mounting frame 43. During the sliding process, the cutting knife 42 will slide stably along the moving groove 411 provided on the cutting roller 41, and the bearing rod 46 will slide in the circular groove 421 provided on the cutting knife 42, ensuring that the adjustment of the position of the cutting knife 42 will not affect its rotation, thereby realizing the flexible adjustment of the position of the cutting knife 42 to meet the cutting requirements of different fabrics. In addition, if the tension of the fabric during the conveying process needs to be adjusted, the swing rod 52 will rotate. The rotation of the swing rod 52 drives the pressing roller 53 connected to it to rotate synchronously along the oblique groove 511 provided on the setting plate 51, thereby realizing the adjustment of the position of the pressing roller 53. Through adjustment, the pressing roller 53 can press the fabric during the conveying process, thereby adjusting the tension of the fabric. It can flexibly respond to the tension requirements of fabrics of different materials, ensure that the fabric is closely attached to the supporting roller 3, provide stable cutting conditions for the cutting knife 42, and thereby improve the stability and accuracy of the cutting operation. To realize the rotation of the swing rod 52, the rotating motor 55 is started and drives the positioning rod 54 to rotate. The rotation of the positioning rod 54 further drives the swing rod 52 to rotate, so that the swing rod 52 is driven to rotate by the rotary motor 55 to achieve precise adjustment of the position of the pressing roller 53.

[0039] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A reverse tension winding and cutting device for a fabric warp knitting machine, comprising a housing (1), a fabric conveying roller (2) arranged on the housing (1) for conveying fabric, and a supporting roller (3) for receiving fabric to be cut on the fabric conveying roller (2), characterized in that: The winding and cutting device further comprises a cutting adjustment mechanism (4) and a tensioning adjustment mechanism (5); the cutting adjustment mechanism (4) is arranged at the top of the housing (1) and located on one side of the conveying fabric roller (2); the cutting adjustment mechanism (4) comprises a cutting roller (41) and a plurality of cutting knives (42) arranged on the cutting roller (41) and distributed at equal intervals along the setting direction of the cutting roller (41); the cutting adjustment mechanism (4) further comprises a mounting frame (43) and a moving part (44) arranged on the mounting frame (43) and used for driving the cutting knives (42) to slide horizontally along the setting direction of the supporting roller (3); the tensioning adjustment mechanism (5) is arranged at the top of the housing (1) and located on one side of the supporting roller (3); the tensioning adjustment mechanism (5) is used for adjusting the tension of the fabric to be cut during the conveying process.

2. The reverse tension winding and cutting device of a fabric warp knitting machine according to claim 1, characterized in that: The cutting adjustment mechanism (4) further comprises an abutment block (45); a movable groove (411) is provided on the cutting roller (41), and a plurality of movable grooves (411) are arranged in an array along the circumferential direction of the cutting roller (41); circular grooves (421) are provided on both sides of the cutting knife (42); and the abutment block (45) is horizontally slidably arranged on the mounting frame (43), and the abutment block (45) is located on both sides of the cutting knife (42).

3. The reverse tension winding and cutting device of a fabric warp knitting machine according to claim 2, characterized in that: The cutting adjustment mechanism (4) further comprises a bearing rod (46); the bearing rod (46) is rotatably disposed on the abutment block (45), and the bearing rod (46) is capable of sliding in the circular groove (421); when the cutting knife (42) rotates, the bearing rod (46) is capable of rotating in the circular groove (421).

4. The reverse tension winding and cutting device of a fabric warp knitting machine according to claim 1, characterized in that: The cutting adjustment mechanism (4) further comprises a multi-stage telescopic cylinder (47) and a guide rod (48); a linear groove is provided on the mounting frame (43), and the abutment block (45) can be slid in the linear groove; the multi-stage telescopic cylinder (47) has a pair of cylinders respectively arranged on both sides of the mounting frame (43), and the output end of the multi-stage telescopic cylinder (47) is fixedly connected to the moving part (44); the guide rod (48) is arranged in the linear groove, and the abutment block (45) and the guide rod (48) are clearance-matched.

5. The reverse tension winding and cutting device of a fabric warp knitting machine according to claim 1, characterized in that: The tensioning adjustment mechanism (5) comprises a setting plate (51), a swinging rod (52) and a pressing roller (53); the setting plate (51) has a pair of plates and are respectively arranged on the top of the housing (1), and the setting plate (51) is located below the supporting roller (3); the setting plate (51) is provided with an oblique groove (511); the swinging rod (52) has a pair of plates and are respectively rotatably mounted on the setting plate (51); the pressing roller (53) is slidably arranged in the oblique groove (511), and one end of the pressing roller (53) is rotatably connected to the swinging rod (52), so that when the swinging rod (52) rotates, it can drive the pressing roller (53) to perform synchronous rotation along the oblique groove (511).

6. The reverse tension winding and cutting device of a fabric warp knitting machine according to claim 5, characterized in that: The tensioning adjustment mechanism (5) further comprises a positioning rod (54) and a rotating motor (55); the positioning rod (54) is mounted on the top of the setting plate (51), and the outside of the positioning rod (54) is fixedly connected to the swing rod (52); the rotating motor (55) is arranged on the top of the housing (1) and above the setting plate (51), and the output end of the rotating motor (55) is connected to the positioning rod (54).

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