Spunlace non-woven fabric slitting device

Abstract

The utility model relates to a spunlace non-woven fabric slitting device which comprises a front supporting plate and a rear supporting plate, an upper first rotating shaft and a lower first rotating shaft are arranged between the two supporting plates respectively, a plurality of first pressing rollers are fixed to each first rotating shaft, and circular knives are fixed to every two adjacent first pressing rollers of the first rotating shaft on the upper side at intervals. An upper sliding groove and a lower sliding groove are formed in the positions, located on the left side of the first rotating shaft, of each supporting plate, a second rotating shaft is arranged on the left side of each first rotating shaft, the second rotating shafts can move up and down along the sliding grooves and can rotate around the axis, and the two second rotating shafts always get close to each other without external force; a plurality of second compression rollers are fixed on each second rotating shaft, and the first compression roller and the second compression roller on the same side are connected through a belt; tensioning force generated when non-woven fabric is wound is matched with the pressure spring, so that the sliding block can move up and down along the sliding groove to compensate the phenomenon of irregular winding caused by unstable traction force, and the winding qualification rate is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of non-woven fabric production, and specifically relates to a hydroentangled non-woven fabric slitting device. Background Art

[0002] When the existing hydroentangled non-woven fabric is slit, a circular knife is used to slit the wide non-woven fabric into strips. Due to the limited contact area between the driving roller and the fabric, the cut strips will shift under the traction force of the winding roller and the cutting knife, resulting in uneven winding and affecting the winding qualification rate; the non-woven fabric slitting machine disclosed in the publication number CN210341471U buffers the traction force of the fabric through an adjusting component, but the conveying guide roller and the cutting circular knife are arranged at intervals, and the end of the fabric cannot be cut and the contact area between the guide roller and the fabric is limited, so the fabric is prone to deviation during the conveying process. Summary of the Utility Model

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model adopts a hydroentangled non-woven fabric slitting device, which solves the problems of deviation and uneven winding caused by uneven traction force during the cutting process of the non-woven fabric in the prior art.

[0004] The technical solution it adopts is that a hydroentangled non-woven fabric slitting device includes two front and rear support plates. Two upper and lower first rotating shafts horizontally placed front and rear are respectively arranged between the two support plates. A plurality of first pressing rollers arranged at intervals along the length direction are fixed on each first rotating shaft. The first pressing rollers on the upper and lower sides correspond to each other and are in clearance fit. Circular knives are respectively fixed at the interval positions of every two adjacent first pressing rollers on the upper first rotating shaft. Two upper and lower chutes are respectively opened on each support plate on the left side of the first rotating shaft. A second rotating shaft horizontally placed front and rear with its axis is arranged on the left side of each first rotating shaft. The front and rear ends of each second rotating shaft are respectively placed in the corresponding chutes. The second rotating shaft can move up and down along the chute and can rotate around the axis. The two second rotating shafts always approach each other without external force. A plurality of second pressing rollers arranged at intervals along the length direction are fixed on each second rotating shaft. The second pressing rollers on the upper and lower sides correspond to each other and are in clearance fit. The first pressing rollers and the second pressing rollers on the same side are connected by a belt; A winding roller horizontally placed front and rear with its axis is respectively rotatably connected between the two support plates on the right side of the second rotating shaft.

[0005] Further, the chute is an arc-shaped groove, the center of the arc trajectory coincides with the axis of the first rotating shaft, a slider is arranged in the chute, the slider can slide along the chute, and the front and rear ends of the second rotating shaft are respectively rotatably connected with the corresponding sliders.

[0006] Further, a compression spring is connected between the slider and the end of the chute far from the middle of the support plate, and the compression spring always makes the two second rotating shafts approach each other without external force.

[0007] Further, the first rotating shaft penetrates through the front support plate. A motor is fixed to the front support plate. The motor rotating shaft and the two first rotating shafts are in meshing transmission torque through gears, so that the upper first rotating shaft rotates clockwise and the lower first rotating shaft rotates counterclockwise.

[0008] Further, on the lower first rotating shaft, a top knife plate is respectively fixed at each interval position of the first pressing rollers, and the top knife plate is always in contact with the lower end of the circular knife.

[0009] Further, multiple groups of connecting plates are arranged between the first rotating shaft and the second rotating shaft, and the connecting plates are respectively rotatably connected to the first rotating shaft and the second rotating shaft.

[0010] Further, a flat plate placed horizontally front and back is fixed to the lower side of the connecting plate. The lower end surface of the flat plate is attached to the upper end surface of the lower belt, and the flat plate can assist in supporting the belt.

[0011] Further, a motor is fixed at the corresponding position of each winding roller on the front side of the support plate. The winding roller rotating shaft is fixed to the motor rotating shaft, and the motor can drive all the winding rollers and the belt to rotate at the same linear speed.

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

[0013] 1. By the cooperation of the tension force during the winding of the non-woven fabric and the compression spring, the slider can move up and down along the chute to compensate for the uneven winding phenomenon caused by unstable traction force, greatly improving the winding qualification rate;

[0014] 2. By belt transmission, the contact surface between the non-woven fabric and the driving roller is increased, greatly improving the stability of fabric transmission and cutting. At the same time, by the contact between the belt and the fabric, the friction force between the fabric and the first pressing roller and the second pressing roller is greatly increased, ensuring that the tension force of the non-woven fabric always exists and interacts with the compression spring for buffering. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 is the front sectional view of the present utility model.

[0017] Figure 3 is Figure 1 the left sectional view of A-A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following further elaborates in detail the specific embodiments of the present utility model with reference to the drawings.

[0019] By Figures 1 to 3Provided that, the utility model includes two front and rear support plates 1. Between the two support plates 1, there are two upper and lower first rotating shafts 2 horizontally placed in the front and rear directions. Along the length direction of each first rotating shaft 2, a plurality of first pressing rollers 3 arranged at intervals are fixed. The upper and lower first pressing rollers 3 correspond to each other one by one and are in clearance fit. At the interval positions of every two adjacent first pressing rollers 3 on the upper first rotating shaft 2, circular knives 4 are respectively fixed. On each support plate 1, two upper and lower chutes 5 are respectively opened on the left side of the first rotating shaft 2. On the left side of each first rotating shaft 2, there is a second rotating shaft 6 with its axis horizontally placed in the front and rear direction. The front and rear ends of each second rotating shaft 6 are respectively placed in the corresponding chutes 5. The second rotating shaft 6 can move up and down along the chute 5 and can rotate around the axis. The two second rotating shafts 6 always approach each other when not under external force. Along the length direction of each second rotating shaft 6, a plurality of second pressing rollers 7 arranged at intervals are fixed. The upper and lower second pressing rollers 7 correspond to each other one by one and are in clearance fit. The first pressing rollers 3 and the second pressing rollers 7 on the same side are connected by belts; between the two support plates 1, a winding roller 8 with its axis horizontally placed in the front and rear direction is respectively rotatably connected on the right side of the second rotating shaft 6.

[0020] The chute 5 is an arc-shaped groove, and the center of the arc trajectory coincides with the axis of the first rotating shaft 2. A slider 9 is arranged in the chute 5, and the slider 9 can slide along the chute 5. The front and rear ends of the second rotating shaft 6 are respectively rotatably connected to the corresponding sliders 9.

[0021] A compression spring is connected between the slider 9 and the end of the chute 5 far from the middle of the support plate 1, and the compression spring always makes the two second rotating shafts 6 approach each other when not under external force.

[0022] The first rotating shaft 2 penetrates through the front support plate 1, and a motor is fixed on the front support plate 1. The motor rotating shaft and the two first rotating shafts 2 are in transmission torque through gear meshing, so that the upper first rotating shaft 2 rotates clockwise and the lower first rotating shaft 2 rotates counterclockwise.

[0023] At the interval positions of each first pressing roller 3 on the lower first rotating shaft 2, a top knife plate 10 is respectively fixed, and the top knife plate 10 always contacts the lower end of the circular knife 4.

[0024] A plurality of connecting plates 11 are arranged between the first rotating shaft 2 and the second rotating shaft 6, and the connecting plates 11 are respectively rotatably connected to the first rotating shaft 2 and the second rotating shaft 6.

[0025] A horizontally placed flat plate 12 is fixed on the lower side of the connecting plate 11. The lower end surface of the flat plate 12 fits with the upper end surface of the lower belt, and the flat plate 12 can assist in supporting the belt.

[0026] Motors are fixed at the corresponding positions of each support plate 1 in front of each winding roller 8. The winding roller 8 rotating shaft is fixed to the motor rotating shaft, and the motor can drive all the winding rollers 8 and the belt to rotate at the same linear speed.

[0027] When the utility model is in use, first, the end of the non-woven fabric to be slit is passed through between two first pressure rollers 3. The motor is started to drive the first pressure roller 3 to rotate by the first rotating shaft 2. The first pressure roller 3 drives the second pressure roller 7 to rotate synchronously through a belt. The belt can drive the non-woven fabric to feed leftward through extrusion friction. During the leftward movement of the fabric, it is first cut by the circular knife 4, so that the fabric extending from the left end of the second pressure roller 7 is in the form of being slit into multiple segments by the circular knife 4. Then the motor is stopped, and the ends of the slit fabric are alternately fixed on the winding rollers 8 on the upper and lower sides in sequence, so that the non-woven fabric is in a tensioned state, and the slider 9 can overcome the elastic force of the compression spring and be located at the middle position of the sliding groove 5, that is, the positioning of the non-woven fabric is completed. Then the motor is started to drive the winding rollers 8 and the belt to rotate synchronously for winding.

[0028] The utility model cooperates the tension force during the winding of the non-woven fabric with the compression spring, so that the slider 7 can move up and down along the sliding groove 5 to compensate for the uneven winding caused by unstable traction force, greatly improving the winding qualification rate; by belt transmission, the contact surface between the non-woven fabric and the transmission roller is increased, greatly improving the stability of fabric transmission and cutting. At the same time, the belt contacts the fabric under the support of the support plate 12, so that the friction force between the fabric and the first pressure roller 3 and the second pressure roller 7 is greatly improved, ensuring that the tension force of the non-woven fabric always exists and interacts with the compression spring for buffering.

Claims

1. A spunlace nonwoven fabric slitting device, characterized in that: The invention comprises two front and rear support plates (1), two upper and lower first rotating shafts (2) arranged horizontally in the front and rear are respectively arranged between the two support plates (1), a plurality of first pressing rollers (3) arranged at intervals are fixed on each first rotating shaft (2) along the length direction, the first pressing rollers (3) on the upper and lower sides correspond to each other and are clearance-matched, a circular knife (4) is respectively fixed at the interval position of each two adjacent first pressing rollers (3) on the upper first rotating shaft (2), two upper and lower sliding grooves (5) are respectively opened on the left side of the first rotating shaft (2) on each support plate (1), and a second rotating shaft (6) with an axis horizontally arranged in the front and rear is respectively arranged on the left side of each first rotating shaft (2). The front and rear ends of each second rotating shaft (6) are respectively placed in the slide groove (5) on the corresponding side, the second rotating shaft (6) can move up and down along the slide groove (5) and can rotate around the axis, the two second rotating shafts (6) are always close to each other in the absence of external force, a plurality of second pressing rollers (7) arranged at intervals are fixed on each second rotating shaft (6) along the length direction, the second pressing rollers (7) on the upper and lower sides correspond to each other one by one and are clearance-matched, and the first pressing roller (3) and the second pressing roller (7) on the same side are connected by a belt; and a winding roller (8) with an axis horizontally arranged front and back is rotatably connected to the right side of the second rotating shaft (6) between the two support plates (1).

2. The spunlace nonwoven fabric slitting device according to claim 1, characterized in that: The slide groove (5) is an arc groove, the center of the arc track coincides with the axis of the first rotating shaft (2), a slider (9) is arranged in the slide groove (5), and the slider (9) can slide along the slide groove (5), and the front and rear ends of the second rotating shaft (6) are respectively rotatably connected to the slider (9) on the corresponding side.

3. The spunlace nonwoven fabric slitting device according to claim 2, characterized in that: The sliding block (9) and the sliding groove (5) are connected to one end away from the middle of the support plate (1) with a compression spring, and the compression spring always keeps the two second rotating shafts (6) close to each other without being subjected to external force.

4. The spunlace nonwoven fabric slitting device according to claim 1, characterized in that: The first rotating shaft (2) passes through the front support plate (1), and a motor is fixed to the front support plate (1). The motor rotating shaft and the two first rotating shafts (2) transmit torque through gear meshing, so that the upper first rotating shaft (2) rotates clockwise and the lower first rotating shaft (2) rotates counterclockwise.

5. The spunlace nonwoven fabric slitting device according to claim 1, characterized in that: A top knife plate (10) is fixed to the first rotating shaft (2) at the lower side at a position spaced apart from each first pressing roller (3), and the top knife plate (10) is always in contact with the lower end of the circular knife (4).

6. The spunlace nonwoven fabric slitting device according to claim 1, characterized in that: A plurality of groups of connecting plates (11) are arranged between the first rotating shaft (2) and the second rotating shaft (6), and the connecting plates (11) are rotatably connected to the first rotating shaft (2) and the second rotating shaft (6) respectively.

7. The spunlace nonwoven fabric slitting device according to claim 6, characterized in that: A flat plate (12) placed horizontally front and back is fixed to the lower side of the connecting plate (11); the lower end surface of the flat plate (12) is in contact with the upper end surface of the lower belt; the flat plate (12) can provide auxiliary support for the belt.

8. The spunlace nonwoven fabric slitting device according to claim 1, characterized in that: A motor is fixed at the front side of the support plate (1) and at the corresponding position of each winding roller (8); the rotating shaft of the winding roller (8) is fixed to the rotating shaft of the motor; the motor can drive all the winding rollers (8) and the belt to rotate at the same linear speed.

Images