Cloth support of cutting machine

Abstract

The cloth support of the cutting machine comprises a front supporting plate and a rear supporting plate, a supporting roller is arranged on the left side between the two supporting plates, an upper first clamping roller and a lower first clamping roller are arranged on the right side of the supporting roller, and an upper flattening roller and a lower flattening roller are arranged on the right sides of the first clamping rollers respectively. The front end and the rear end of the outer edge face of each flattening roller are provided with spiral strips opposite in rotating direction respectively, and when the spiral strips rotate along with the flattening rollers, the spiral strips can apply horizontal outward pushing force to the front end and the rear end of cloth, an upper cutting roller and a lower cutting roller are arranged on the right sides of the flattening rollers, and a cutting circular knife is arranged in the middle of the upper cutting roller. A cutter jacking plate is fixed to the middle of the lower cutting roller, and an upper second clamping roller and a lower second clamping roller are arranged on the right side of the cutting roller, can horizontally move left and right and are always subjected to rightward pulling force. Cloth before and after slitting is clamped, positioned and transported through the first clamping roller and the second clamping roller capable of moving left and right, and cutting stability is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of textile production, in particular to a fabric support for a cutting machine. Background Art

[0002] When the existing cutting machine cuts the fabric, the fabric at the pinch roller is prone to wrinkles, which affects the positioning of the cutting wheel and even causes the overall deviation of the fabric; affected by the elasticity of the fabric, the cutting wheel is prone to cause the surrounding fabric to collapse towards the cutting wheel during the cutting process, resulting in uneven cuts or even incomplete cutting of the fabric, seriously affecting the cutting quality.

[0003] In the prior art, the publication number CN205775537U discloses a fabric support for a fabric cutting machine, which corrects the deviation through a disc and a card slot. The braking device makes the stretching tension of the fabric moderate, and the cutting size is accurate, effectively preventing the occurrence of scissors breakage; the deviation correction effect of this solution is general, it cannot solve the problem of fabric wrinkles, and it cannot solve the problem of uneven cutting of the cutting wheel. Content of the Utility Model

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model adopts a fabric support for a cutting machine, which solves the problems of fabric wrinkles and uneven cutting in the prior art.

[0005] The technical solution it adopts is that a fabric support for a cutting machine includes two front and rear support plates. A support roller with a horizontal axis placed front and rear is arranged on the left side between the two support plates. On the right side of the support roller, there are two upper and lower first pinch rollers. The two first pinch rollers are in clearance fit and are respectively rotatably connected to the front and rear support plates. On the right side of the first pinch rollers, there are two upper and lower flattening rollers respectively. On the front and rear end parts of the outer peripheral surface of each flattening roller, there are spiral strips with opposite rotation directions. When the spiral strips rotate with the flattening rollers, the spiral strips can apply a horizontally outward thrust to the front and rear ends of the fabric. On the right side of the flattening rollers, there are two upper and lower cutting rollers. A cutting circular knife is arranged in the middle of the upper cutting roller, and a top knife plate is fixed in the middle of the lower cutting roller. On the right side of the cutting rollers, there are two upper and lower second pinch rollers. The two second pinch rollers can move horizontally left and right and are always subjected to a rightward pulling force.

[0006] Resistance strips arranged along the axial direction are fixed on the outer peripheral surfaces of the first pinch rollers and the second pinch rollers. The resistance strips are evenly distributed along the circumference, and the resistance strips can clamp the fabric placed between the first pinch rollers and the second pinch rollers to prevent slipping between the first pinch rollers and the second pinch rollers and the fabric.

[0007] Each of the first pinch rollers, flattening rollers, and cutting rollers is rotatably connected to the support plates on the front and rear sides at both the front and rear ends. A first gear is fixed to the front end of each of the first pinch rollers, flattening rollers, cutting rollers, and second pinch rollers. The upper and lower corresponding first gears mesh with each other. A first motor and a second motor are fixed to the front end face of the front support plate. The rotating shaft of the first motor is coaxially fixed to the upper first pinch roller, and the first motor can drive the upper first pinch roller to rotate counterclockwise. A second gear is fixed to the front side of the rotating shaft of the second motor. The second gear meshes with the upper flattening roller and cutting roller respectively. The second motor can drive the upper flattening roller and cutting roller to rotate synchronously counterclockwise through the second gear. The rotational speeds of the flattening roller and cutting roller driven by the second motor are greater than the rotational speed of the first pinch roller driven by the first motor.

[0008] A chute is provided at the right end of the support plate. A slider capable of sliding left and right along the chute is arranged in the chute. The two second pinch rollers are respectively rotatably connected to the sliders on the front and rear sides. A third motor is fixed to the front slider. The rotating shaft of the third motor is coaxially fixed to the upper second pinch roller and can drive the upper second pinch roller to rotate counterclockwise. The rotational speed of the second pinch roller driven by the third motor is the same as the rotational speed of the first pinch roller driven by the first motor.

[0009] A tension spring is arranged between the right end face of the slider and the right end face of the chute. The tension spring always gives the slider a rightward pulling force. A right ejector rod is arranged between the right end face of the slider and the right end face of the chute. When the slider moves to the leftmost side of the chute, the ejector rod can be placed between the right end face of the slider and the right end face of the chute to support the slider and prevent it from resetting to the right under the action of the tension spring.

[0010] The cutting circular knife contacts the outer edge surface of the top knife plate.

[0011] A plurality of pressure rings are fixed to the outer edge surface of the cutting roller. The pressure rings can contact the fabric and limit the horizontal front and back movement of the fabric.

[0012] The present utility model has the following advantages compared with the prior art:

[0013] 1. The fabric before and after slitting is clamped, positioned, and transported by the first pinch roller and the second pinch roller that can move left and right, ensuring the stability of cutting;

[0014] 2. The flattening roller with a rotational speed greater than the feeding speed of the fabric is used to flatten the fabric wrinkles in the left - right and front - back directions through the dynamic friction force of the symmetrically arranged spiral strips. The pressure rings can timely position the flattened fabric. The tension spring compensates for the tension loss, avoiding low neatness of the cut and fabric skew during the cutting process, and greatly improving the cutting qualification rate of the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the present utility model.

[0016] Figure 2 This is the top view of the present utility model.

[0017] Figure 3 is Figure 2 the cross-sectional view taken along A-A in

[0018] Figure 4 This is the left view of the cutting roller of the present utility model.

[0019] Figure 5 This is the three-dimensional view of the first pinch roller of the present utility model. Specific embodiments

[0020] The following further elaborates in detail on the specific embodiments of the present utility model in conjunction with the accompanying drawings.

[0021] It is composed of Figures 1 to 5 As shown, the present utility model includes two front and rear support plates 1. Between the two support plates 1, a support roller 2 with a horizontal axis placed front and rear is arranged on the left side. On the right side of the support roller 2, there are two upper and lower first pinch rollers 3. The two first pinch rollers 3 are in clearance fit and are respectively rotatably connected to the front and rear support plates 1. On the right side of the first pinch rollers 3, there are two upper and lower flattening rollers 4 respectively. On the front and rear end parts of the outer peripheral surface of each flattening roller 4, there are spiral strips 5 with opposite helix directions. When the spiral strips 5 rotate with the flattening rollers 4, the spiral strips 5 can apply a horizontally outward thrust to the front and rear ends of the fabric. On the right side of the flattening rollers 4, there are two upper and lower cutting rollers 6. In the middle of the upper cutting roller 6, there is a cutting circular knife 7, and in the middle of the lower cutting roller 6, there is a top knife plate 8 fixed. On the right side of the cutting rollers 6, there are two upper and lower second pinch rollers 9. The two second pinch rollers 9 can move horizontally left and right and are always subjected to a rightward pulling force.

[0022] On the outer peripheral surfaces of the said first pinch rollers 3 and second pinch rollers 9, there are multiple resistance strips 10 arranged along the axial direction. The resistance strips 10 are evenly distributed along the circumference. The resistance strips 10 can clamp the fabric placed between the first pinch rollers 3 and the second pinch rollers 9 to prevent slipping between the first pinch rollers 3 and the second pinch rollers 9 and the fabric.

[0023] The front and rear ends of each of the first clamping roller 3, flattening roller 4 and cutting roller 6 are respectively rotatably connected to the support plates 1 on the front and rear sides, and a first gear 11 is fixed to the front end of each first clamping roller 3, flattening roller 4, cutting roller 6 and second clamping roller 9, and the two corresponding first gears 11 above and below are meshed with each other. A first motor 12 and a second motor 13 are fixed to the front end surface of the front support plate 1, and the rotating shaft of the first motor 12 is coaxially fixedly connected to the first clamping roller 3 on the upper side. The first motor 12 can drive the upper first clamping roller 3 to rotate counterclockwise, and a second gear 14 is fixed to the front side of the rotating shaft of the second motor 13, and the second gear 14 is respectively meshed with the flattening roller 4 and cutting roller 6 on the upper side. The second motor 13 can drive the upper flattening roller 4 and cutting roller 6 to rotate synchronously counterclockwise through the second gear 14, and the rotation speed of the flattening roller 4 and cutting roller 6 driven by the second motor 13 is greater than the rotation speed of the first clamping roller 3 driven by the first motor.

[0024] A slide groove 15 is provided at the right end of the support plate 1, and a slider 16 that can slide left and right along the slide groove 15 is provided in the slide groove 15. The two second clamping rollers 9 are rotatably connected to the sliders 16 on the front and rear sides respectively. A third motor 17 is fixed on the front slider 16. The rotating shaft of the third motor 17 is coaxially fixed with the second clamping roller 9 on the upper side and can drive the second clamping roller 9 on the upper side to rotate counterclockwise. The rotation speed of the second clamping roller 9 driven by the third motor is consistent with the rotation speed of the first clamping roller 3 driven by the first motor.

[0025] A tension spring is provided between the right end face of the slider 16 and the right end face of the chute 15. The tension spring always exerts a pulling force to the right on the slider 16. A right push rod 18 is provided between the right end face of the slider 16 and the right end face of the chute 15. When the slider 16 moves to the leftmost side of the chute 15, the push rod 18 can be placed between the right end face of the slider 16 and the right end face of the chute 15 to support the slider 16 and prevent it from resetting to the right under the action of the tension spring.

[0026] The circular cutting blade 7 is in contact with the outer edge of the top blade plate 8.

[0027] A plurality of pressure rings 19 are fixed to the outer edge of the cutting roller 6. The pressure rings 19 can contact the cloth and limit the horizontal forward and backward movement of the cloth.

[0028] When the utility model is in use, first, the whole roll of fabric to be slit is fixed on the support roller 2, ensuring that the slider 16 is placed at the leftmost side of the chute 15 and the ejector rod 18 supports the slider 16. Then, the end of the fabric is sequentially passed between the upper and lower first pinch rollers 3, the flattening roller 4, the cutting roller 6 and the second pinch roller 9. After ensuring that the first pinch roller 3 and the second pinch roller 9 clamp the fabric, start the first motor 12, the second motor 13 and the second motor 17, and pull out the ejector rod 18. The fabric between the first pinch roller 3 and the second pinch roller 9 can be tensioned under the pulling force of the tension spring. The first pinch roller 3 and the second pinch roller 9 can drive the fabric to feed horizontally to the right. The rotation speed of the flattening roller 4 is greater than that of the first pinch roller 3, and the spiral strips 5 at its front and rear ends can flatten the wrinkles on the fabric horizontally to the right and horizontally outwards through the contact dynamic friction. The rotation speed of the cutting roller 6 is greater than that of the first pinch roller 3, and the cutting circular knife 7 fixed in the middle thereof can generate relative rotation and shear force with the fabric to complete the slitting of the fabric. Since the pressure ring 19 can contact the fabric, it can limit the horizontal forward and backward movement of the fabric; after the flattening roller 4 finishes flattening the fabric in the front and rear directions, the pressure ring 19 can timely position the flattened fabric. After the flattening roller 4 finishes flattening the fabric in the left and right directions, the tension spring can pull the slider 16 and the second pinch roller 9 to move to the right to make up for the tension loss.

[0029] The utility model clamps, positions and transports the fabric before and after slitting through the first pinch roller 3 and the second pinch roller 9 that can move left and right to ensure the stability of cutting. The flattening roller 4 with a rotation speed greater than the feeding speed of the fabric is used to make the spiral strips 5 flatten the wrinkles on the fabric in the left, right, front and rear directions through dynamic friction, and the pressure ring 19 can timely position the flattened fabric. The tension loss is made up by the tension spring to avoid low neatness of the cut and fabric skew during the cutting process, and greatly improve the cutting qualification rate of the fabric.

Claims

1. A fabric support for a cutting machine, characterized in that, It includes two front and rear support plates (1). A support roller (2) with a horizontal axis placed front and rear is arranged on the left side between the two support plates (1). Two upper and lower first pinch rollers (3) are arranged on the right side of the support roller (2). The two first pinch rollers (3) are in clearance fit and are respectively rotatably connected to the front and rear support plates (1). Two upper and lower flattening rollers (4) are respectively arranged on the right side of the first pinch rollers (3). Helical strips (5) with opposite helix directions are respectively arranged at the front and rear ends of the outer peripheral surface of each flattening roller (4). When the helical strips (5) rotate with the flattening rollers (4), the helical strips (5) can apply a horizontally outward thrust to the front and rear ends of the fabric. Two upper and lower cutting rollers (6) are arranged on the right side of the flattening rollers (4). A cutting circular knife (7) is arranged in the middle of the upper cutting roller (6), and a top knife plate (8) is fixed in the middle of the lower cutting roller (6). Two upper and lower second pinch rollers (9) are arranged on the right side of the cutting rollers (6). The two second pinch rollers (9) can move horizontally left and right and are always subjected to a rightward pulling force.

2. The fabric support of a cutting machine according to claim 1, wherein, Resistance strips (10) arranged along the axial direction are fixed on the outer peripheral surfaces of the first pinch rollers (3) and the second pinch rollers (9). The resistance strips (10) are evenly distributed along the circumference. The resistance strips (10) can clamp the fabric placed between the first pinch rollers (3) and the second pinch rollers (9) to prevent slipping between the first pinch rollers (3) and the second pinch rollers (9) and the fabric.

3. The fabric support of a cutting machine according to claim 1, characterized in that, The front and rear ends of each of the first pinch rollers (3), the flattening rollers (4), and the cutting rollers (6) are respectively rotatably connected to the front and rear support plates (1). A first gear (11) is respectively fixed at the front end of each of the first pinch rollers (3), the flattening rollers (4), the cutting rollers (6), and the second pinch rollers (9). The two corresponding upper and lower first gears (11) are meshed with each other. A first motor (12) and a second motor (13) are fixed on the front end face of the front support plate (1). The rotating shaft of the first motor (12) is coaxially fixed to the upper first pinch roller (3). The first motor (12) can drive the upper first pinch roller (3) to rotate counterclockwise. A second gear (14) is fixed on the front side of the rotating shaft of the second motor (13). The second gear (14) is meshed with the upper flattening roller (4) and the cutting roller (6) respectively. The second motor (13) can drive the upper flattening roller (4) and the cutting roller (6) to rotate synchronously counterclockwise through the second gear (14). The rotating speeds of the flattening roller (4) and the cutting roller (6) driven by the second motor (13) are greater than the rotating speed of the first pinch roller (3) driven by the first motor.

4. The fabric support of a cutting machine according to claim 1, characterized in that, A chute (15) is opened at the right end of the support plate (1). A slider (16) capable of sliding left and right along the chute (15) is arranged in the chute (15). The two second pinch rollers (9) are respectively rotatably connected to the front and rear sliders (16). A third motor (17) is fixed on the front slider (16). The rotating shaft of the third motor (17) is coaxially fixed to the upper second pinch roller (9) and can drive the upper second pinch roller (9) to rotate counterclockwise. The rotating speed of the second pinch roller (9) driven by the third motor is the same as the rotating speed of the first pinch roller (3) driven by the first motor.

5. A fabric support for a cutting machine according to claim 4, wherein, A tension spring is arranged between the right end face of the slider (16) and the right end face of the chute (15). The tension spring always applies a rightward pulling force to the slider (16). A right ejector rod (18) is arranged between the right end face of the slider (16) and the right end face of the chute (15). When the slider (16) moves to the leftmost side of the chute (15), the ejector rod (18) can be placed between the right end face of the slider (16) and the right end face of the chute (15) to support the slider (16) and prevent it from resetting to the right under the action of the tension spring.

6. The fabric support of a cutting machine according to claim 1, characterized in that, The cutting circular knife (7) contacts the outer edge surface of the top knife plate (8).

7. The fabric support of a cutting machine according to claim 1, characterized in that, A plurality of pressure rings (19) are fixed on the outer edge surface of the cutting roller (6). The pressure rings (19) can contact the fabric and can limit the horizontal forward and backward movement of the fabric.

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