A type of flower cutting machine

Abstract

A fabric shearing machine is disclosed to address the technical problem in existing technologies where fabric cannot maintain constant tension during the shearing process involving the reciprocating movement of a fabric frame. Specifically, the machine includes a frame with one side designated as the fabric inlet side and the other as the fabric outlet side. From the fabric inlet side to the fabric outlet side, the frame is sequentially equipped with a centering mechanism, a front traction mechanism, a shearing mechanism, a rear traction mechanism, and a fabric outlet mechanism. It also includes a fabric support unit positioned directly below the shearing mechanism and a tension maintaining unit positioned below and linked to the fabric support unit. By incorporating a tension maintaining unit that moves synchronously with the fabric support unit, this invention ensures that the fabric maintains constant tension during the movement of the fabric frame, with uniform tension changes between the inner and outer layers. This results in a consistent angle at which the pile fibers enter the cutting edge, effectively improving the shearing quality.

Description

Technical Field

[0001] This invention relates to the field of textile equipment technology, and more particularly to a flower shearing machine. Background Technology

[0002] The shearing machine is a finishing equipment for textiles, and one of the main pieces of equipment for finishing plush products. Shearing machines are also designed in various different structural combinations, and their main forms include single-blade shearing machines, heat-pressing and shearing combined machines, brushing-heat-pressing and shearing combined machines, and raising-hair shearing combined machines.

[0003] The fabric support frame (knife) is a component in a shearing machine. It allows the fabric to be sheared to bend sharply at the corner of the knife tip, causing a change in tension between the inner and outer layers and making the pile fibers stand upright and enter the blade for easy cutting to a fixed length. By designing the fabric support frame into different units that can be controlled at different heights, it can be used in conjunction with the shearing mechanism to cut different patterns of pile.

[0004] In existing shearing machines, the fabric frame is raised and lowered, but because the positions of the front and rear fabric spreading devices are relatively fixed, the fabric cannot maintain constant tension during the shearing process as the frame moves back and forth. The tension of the inner and outer layers varies, and the angle at which the pile fibers enter the cutting edge changes, thus affecting the shearing effect. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to address the shortcomings of the prior art by providing a tension-compensated fabric shearing machine that can maintain constant tension during the fabric's lifting and lowering process.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A fabric shearing machine includes a frame, with one side of the frame designated as a fabric inlet side and the other side as a fabric outlet side. From the fabric inlet side to the fabric outlet side, the frame is sequentially equipped with a centering mechanism, a front traction mechanism, a shearing mechanism, a rear traction mechanism, and a fabric outlet mechanism. Its features are:

[0008] It also includes a fabric support unit positioned directly below the fabric cutting mechanism and a tension holding unit positioned below the fabric support unit and linked to the fabric support unit.

[0009] The fabric support unit includes a fabric support frame, with two symmetrical support frames (left and right) mounted on the lower end of the fabric support frame. Each support frame is fixedly connected to the corresponding side of the frame via a vertical upper synchronous slide rail. An upper synchronous slider that corresponds to and cooperates with the upper synchronous slide rail is fixedly mounted on the support frame.

[0010] The tension holding unit includes a guide roller disposed below the support frame and parallel to the fabric frame. Two slider seats are symmetrically mounted on both ends of the guide roller. Each slider seat is fixedly mounted with a vertical lower synchronous slide rail between it and the frame on its corresponding side. A lower synchronous slider that cooperates with the lower synchronous slide rail is fixedly mounted on the slider seat.

[0011] A lifting drive unit is provided between the fabric support unit and the tension holding unit to drive the support frame and the guide roller to move up and down synchronously along the upper and lower synchronous slides, respectively.

[0012] The lifting drive unit includes a synchronous shaft arranged parallel to the guide roller. Two eccentric wheels, left and right, are symmetrically fixed at both ends of the synchronous shaft. The eccentric wheels are hinged to the support frame upward through an upper connecting rod, and the eccentric wheels are hinged to the slider seat downward through a lower connecting rod.

[0013] One end of the synchronous shaft is equipped with a drive mechanism that drives the synchronous shaft and the eccentric wheel to oscillate back and forth and drives the upper and lower connecting rods to oscillate.

[0014] The technical problem to be solved by the present invention can also be further achieved by the following means: the driving mechanism is a worm gear reducer driven by a servo motor, the output end of the reducer is equipped with a driving eccentric wheel, one end of the synchronous shaft is equipped with a driven eccentric wheel, and the driving eccentric wheel and the driven eccentric wheel are connected by a swing arm transmission.

[0015] The technical problem to be solved by the present invention can also be further achieved by the following method: the shearing mechanism includes a circular blade holder fixedly mounted on a frame, the circular blade holder is provided with a circular blade mounting part, and a flat blade adjustment part is provided on one side of the circular blade mounting part.

[0016] A circular blade is rotatably mounted on the circular blade mounting part, facing the top of the felt frame. A flat blade corresponding to and cooperating with the circular blade is provided on the flat blade adjustment part on one side of the bottom of the circular blade.

[0017] The circular blade and the flat blade form a shearing edge for the fabric, and the flat blade adjustment part is provided with an adjustment mechanism for adjusting the width of the shearing edge.

[0018] The technical problem to be solved by the present invention can be further achieved by the following means: the adjustment mechanism includes a linear guide rail fixedly installed on the flat knife adjustment part and perpendicular to the circular knife; a flat knife holder is slidably installed on the linear guide rail; the flat knife is disposed between the circular knife and the flat knife holder and fixedly connected to the front end of the flat knife holder; and an adjustment rod parallel to the linear guide rail is provided at the rear end of the flat knife holder.

[0019] The flat blade adjusting part is fixedly provided with an adjusting through hole corresponding to the adjusting rod at the end away from the circular blade.

[0020] One end of the adjusting rod is fixedly connected to the flat knife holder, and the other end extends backward through the adjusting through hole. An adjusting nut for adjusting the relative position of the flat knife holder and the adjusting through hole is screwed onto the extended end.

[0021] The technical problem to be solved by the present invention can also be further achieved by the following means: the fabric feeding mechanism includes two horizontal beams mounted on the frame, each beam is provided with a horizontal guide rail, each horizontal guide rail is provided with a fabric trolley, two fabric rollers are installed in parallel between the two fabric trolleys, and a fabric feeding channel is formed between the two fabric rollers. A fabric feeding drive mechanism is installed on the beam to drive the fabric trolleys to swing back and forth along the horizontal guide rails.

[0022] The technical problem to be solved by the present invention can also be further achieved by the following method: the swaying drive mechanism is a synchronous sprocket mechanism driven by a motor.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting a tension maintaining unit that rises and falls synchronously with the fabric support unit, the tension of the fabric remains constant during the rise and fall of the fabric support frame, and the tension change rate of the inner and outer layers is uniform, thereby keeping the angle at which the pile fibers enter the blade constant and effectively improving the cutting quality; the flat blade can be adjusted back and forth through the adjustment mechanism, and the pressure angle between the adjusted blade and the circular blade is always formed, which effectively improves the cutting effect; the fabric trolley moves left and right on the horizontal guide rail through the synchronous sprocket mechanism, and the fabric passes through the fabric trolley channel and is stacked in an orderly manner, achieving a fabric trolley function of not less than 1.8 meters. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a front view schematic diagram of the support unit of the present invention;

[0026] Figure 3 This is a side view of the fabric support unit of the present invention;

[0027] Figure 4 This is a schematic diagram of the paper-cutting mechanism of the present invention;

[0028] Figure 5 This is a schematic diagram of the fabric dispensing mechanism of the present invention. Detailed Implementation

[0029] The specific technical solutions of the present invention are further described below to enable those skilled in the art to further understand the present invention, without constituting a limitation on its rights.

[0030] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0031] Referring to the accompanying drawings, a fabric shearing machine includes a frame 1, with one side of the frame designated as the fabric inlet side and the other side as the fabric outlet side. From the fabric inlet side to the fabric outlet side, the frame is sequentially equipped with a centering mechanism 2, a front traction mechanism 3, a fabric lifting mechanism 4, a shearing mechanism 5, a rear traction mechanism 6, and a fabric outlet mechanism 7. The fabric lifting mechanism 4 is correspondingly positioned below the shearing mechanism 5.

[0032] The fabric lifting mechanism 4 includes a fabric support unit 401 and a tension holding unit 402 disposed below the fabric support unit and linked to the fabric support unit.

[0033] The fabric support unit 401 includes a fabric support frame 41, with two support frames 42 symmetrically mounted on the lower end of the fabric support frame. Each support frame is fixedly provided with a vertical upper synchronous slide rail 43 between itself and the frame on its corresponding side. An upper synchronous slider 44 corresponding to and cooperating with the upper synchronous slide rail is fixedly mounted on the support frame.

[0034] The tension holding unit 402 includes a guide roller 45 disposed below the support frame 42 and parallel to the fabric support frame 41. Two slider seats 46 are symmetrically mounted at both ends of the guide roller. Each slider seat 46 is fixedly mounted with a vertical lower synchronous slide rail 47 between it and the frame on its corresponding side. A lower synchronous slider 48 that cooperates with the lower synchronous slide rail is fixedly mounted on the slider seat 46.

[0035] A lifting drive unit 403 is provided between the fabric support unit 401 and the tension holding unit 402 for driving the support frame 42 and the guide roller 45 to move up and down synchronously along the upper synchronous slide rail 43 and the lower synchronous slide rail 47, respectively.

[0036] The lifting drive unit includes a synchronous shaft 49 arranged parallel to the guide roller 45. Two eccentric wheels 50 are symmetrically fixed at both ends of the synchronous shaft. The eccentric wheels are hinged to the support frame 42 upward through an upper connecting rod 51, and the eccentric wheels are hinged to the slider seat 46 downward through a lower connecting rod 52.

[0037] One end of the synchronous shaft 49 is provided with a drive mechanism that drives the synchronous shaft 49 and the eccentric wheel 50 to reciprocate and rotate, and drives the upper and lower connecting rods 51 and 52 to swing.

[0038] The driving mechanism is a worm gear reducer 53 driven by a servo motor. The output end of the reducer is equipped with a driving eccentric wheel, and one end of the synchronous shaft is equipped with a driven eccentric wheel. The driving eccentric wheel and the driven eccentric wheel are connected by a swing arm 54.

[0039] The shearing mechanism 5 includes a circular blade holder 501 fixedly mounted on a frame, a circular blade mounting part 502 on the circular blade holder, and a flat blade adjusting part 503 on one side of the circular blade mounting part.

[0040] A circular blade 55 is rotatably mounted on the circular blade mounting part, facing the top of the felt frame. A flat blade 56 corresponding to and cooperating with the circular blade 55 is provided on the flat blade adjusting part 503 on one side of the bottom of the circular blade 55.

[0041] The circular blade 55 and the flat blade 56 form a shearing edge for the fabric, and the flat blade adjustment part 503 is provided with an adjustment mechanism for adjusting the width of the shearing edge.

[0042] The adjustment mechanism includes a linear guide rail 57 fixedly mounted on the flat blade adjustment part 503 and perpendicular to the circular blade 55. A flat blade holder 58 is slidably mounted on the linear guide rail. The flat blade 56 is disposed between the circular blade 55 and the flat blade holder 58 and is fixedly connected to the front end of the flat blade holder 58. An adjustment rod 59 parallel to the linear guide rail 57 is provided at the rear end of the flat blade holder 58.

[0043] The flat blade adjusting part 503 is fixedly provided with an adjusting through hole corresponding to the adjusting rod 59 at one end away from the circular blade.

[0044] One end of the adjusting rod 59 is fixedly connected to the flat knife holder 58, and the other end extends backward through the adjusting through hole. An adjusting nut 60 for adjusting the relative position of the flat knife holder and the adjusting through hole is screwed onto the extended end.

[0045] The fabric feeding mechanism 7 includes two horizontal beams mounted on the frame, each beam having a horizontal guide rail 71 and a fabric trolley 72. Two fabric rollers 73 are mounted in parallel between the two fabric trolleys, forming a fabric feeding channel between them. A fabric feeding drive mechanism is mounted on the beams to drive the fabric trolleys to swing back and forth along the horizontal guide rails.

[0046] The swaying drive mechanism is a synchronous sprocket mechanism driven by a motor.

[0047] Working principle: In the present invention, a shearing machine with tension compensation, the fabric is corrected by the centering mechanism 2 and then pulled by the front traction mechanism 3 to the fabric support frame 41 below the shearing mechanism. The fabric support frame moves back and forth under the action of the lifting drive unit 403, thereby controlling the distance between the fabric and the shearing blade to complete the shearing of specific tile patterns in accordance with the conveying direction of the fabric itself. After shearing, the fabric is guided by the guide roller 45 and then pulled by the rear traction mechanism 6 to the fabric output mechanism 7 for left and right swinging output. During shearing, the reducer 53 drives the synchronous shaft 49 to reciprocate within a certain angle through the swing arm mechanism 54. The eccentric wheels 50 at both ends of the synchronous shaft drive the fabric support frame 41 and the guide roller 45 to reciprocate and rise synchronously through the upper and lower connecting rods, so that the fabric maintains constant tension during the shearing process and the tension change rate of the inner and outer layers is uniform. This ensures that the angle at which the pile fibers enter the blade remains unchanged, effectively improving the shearing quality. By turning the adjusting nut 60 on the adjusting rod, the distance between the flat blade 56 and the circular blade 55 can be adjusted, thereby adjusting the width of the shearing blade to meet the shearing requirements of fabrics of different sizes. The fabric trolley 72 is driven by the synchronous sprocket mechanism to move laterally by more than 2 meters on the horizontal guide rail 71. The fabric passes through the fabric trolley's fabric folding channel and is stacked in an orderly manner in the fabric drop area, achieving a fabric folding function of not less than 1.8 meters.

[0048] Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

Claims

1. A fabric shearing machine, comprising a frame, one side of which is configured as a fabric inlet side and the other side as a fabric outlet side, wherein a centering mechanism, a front traction mechanism, a shearing mechanism, a rear traction mechanism, and a fabric outlet mechanism are sequentially arranged on the frame from the fabric inlet side to the fabric outlet side, characterized in that: It also includes a fabric support unit positioned directly below the fabric cutting mechanism and a tension holding unit positioned below the fabric support unit and linked to the fabric support unit. The fabric support unit includes a fabric support frame, with two symmetrical support frames (left and right) mounted on the lower end of the fabric support frame. Each support frame is fixedly connected to the corresponding side of the frame via a vertical upper synchronous slide rail. An upper synchronous slider that corresponds to and cooperates with the upper synchronous slide rail is fixedly mounted on the support frame. The tension holding unit includes a guide roller disposed below the support frame and parallel to the fabric frame. Two slider seats are symmetrically mounted on both ends of the guide roller. Each slider seat is fixedly mounted with a vertical lower synchronous slide rail between it and the frame on its corresponding side. A lower synchronous slider that cooperates with the lower synchronous slide rail is fixedly mounted on the slider seat. A lifting drive unit is provided between the fabric support unit and the tension holding unit to drive the support frame and the guide roller to move up and down synchronously along the upper and lower synchronous slides, respectively. The lifting drive unit includes a synchronous shaft arranged parallel to the guide roller. Two eccentric wheels, left and right, are symmetrically fixed at both ends of the synchronous shaft. The eccentric wheels are hinged to the support frame upward through an upper connecting rod, and the eccentric wheels are hinged to the slider seat downward through a lower connecting rod. One end of the synchronous shaft is equipped with a drive mechanism that drives the synchronous shaft and the eccentric wheel to reciprocate and swing, and drives the upper and lower connecting rods to swing. The drive mechanism is a worm gear reducer driven by a servo motor. The output end of the reducer is equipped with a drive eccentric wheel, and one end of the synchronous shaft is equipped with a driven eccentric wheel. The drive eccentric wheel and the driven eccentric wheel are connected by a swing arm transmission. The fabric feeding mechanism includes two horizontal beams mounted on the frame, each beam having a horizontal guide rail and each horizontal guide rail having a fabric trolley. Two fabric rollers are mounted in parallel between the two fabric trolleys, forming a fabric feeding channel between the two rollers. A fabric feeding drive mechanism is mounted on the beams to drive the fabric trolleys to swing back and forth along the horizontal guide rails.

2. The flower shearing machine according to claim 1, characterized in that: The shearing mechanism includes a circular blade holder fixedly mounted on a frame, a circular blade mounting part on the circular blade holder, and a flat blade adjustment part on one side of the circular blade mounting part. A circular blade is rotatably mounted on the circular blade mounting part, facing the top of the felt frame. A flat blade corresponding to and cooperating with the circular blade is provided on the flat blade adjustment part on one side of the bottom of the circular blade. The circular blade and the flat blade form a shearing edge for the fabric, and the flat blade adjustment part is provided with an adjustment mechanism for adjusting the width of the shearing edge.

3. The flower shearing machine according to claim 2, characterized in that: The adjustment mechanism includes a linear guide rail fixedly mounted on the flat blade adjustment section and perpendicular to the circular blade, a flat blade holder slidably mounted on the linear guide rail, the flat blade being positioned between the circular blade and the flat blade holder and fixedly connected to the front end of the flat blade holder, and an adjustment rod parallel to the linear guide rail being provided at the rear end of the flat blade holder. The flat blade adjusting part is fixedly provided with an adjusting through hole corresponding to the adjusting rod at the end away from the circular blade. One end of the adjusting rod is fixedly connected to the flat knife holder, and the other end extends backward through the adjusting through hole. An adjusting nut for adjusting the relative position of the flat knife holder and the adjusting through hole is screwed onto the extended end.

4. The flower shearing machine according to claim 1, characterized in that: The swaying drive mechanism is a synchronous sprocket mechanism driven by a motor.

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