Slitting mechanism for cloth strips

Abstract

The utility model discloses a slitting mechanism for cloth strips, which comprises a rack and a driving mechanism connected with the rack, and further comprises a cloth cutting unit, and the cloth cutting unit comprises a first supporting assembly connected with the rack, a second supporting assembly connected with the rack, and a third supporting assembly connected with the rack. The first transmission assembly is matched with the first supporting assembly and is connected with the driving mechanism; the swing driver is connected with the first supporting assembly; the swing arm assembly is hinged to the first supporting assembly and the swing driver; the cutter assembly is connected with the swing arm assembly, and the cutter is further matched with the first transmission assembly; and the tool apron assembly is connected with the rack, and the tool apron assembly is matched with the cutter assembly. The cloth trimming device can enable the trimming of cloth to be smooth.

Description

TECHNICAL FIELD

[0001] The utility model relates to cloth slitting equipment, concretely relates to a kind of slitting mechanism for cloth strip. BACKGROUND

[0002] When preparing whole cloth into other products (for example, preparing mask by using non-woven fabric), the whole cloth needs to be slitted, so that the size of the cloth strip obtained by slitting meets the demand of preparing corresponding products. When the cloth is slitted into cloth strips, a slitting machine needs to be used.

[0003] CN217351915U discloses a cloth strip cutting machine, which comprises a machine body, a driving roller rotatably installed on the machine body, a pressing roller rotatably installed on the machine body, and a driving member for driving the driving roller to rotate. A plurality of pneumatic cutters for cutting cloth are fixed on one side of the machine body, adjacent to the driving roller. The pneumatic cutters are arranged in the axial direction parallel to the driving roller, and the cutting edges of the pneumatic cutters face the driving roller.

[0004] When cutting, the cloth is pressed between the driving roller and the pressing roller. When the driving roller rotates, the cloth can be conveyed to the side of the pneumatic cutter. The cloth is tensioned by the driving roller, the passive roller and the pressing roller. When the tensioned cloth passes through the pneumatic cutter, it is cut by the pneumatic cutter. Based on the structure of CN217351915U, when the pneumatic cutter cuts the cloth, it lacks the support of the knife seat, so that the cloth is cut only by the force of the pneumatic cutter. Since the pneumatic cutter is driven by the force of the gas pressure, the rebound force of the tensioned cloth on the cutter will be generated during the cutting process. The gas pressure in the pneumatic cutter can overcome the rebound force of the cutter generated by the cloth with a relatively thin thickness, but for the cloth with a relatively thick thickness, the rebound force of the cutter will cause the cutter to fluctuate, resulting in uneven cutting edges of the cloth. SUMMARY

[0005] The utility model provides a kind of slitting mechanism for cloth strip, the utility model can make the cutting edge of cloth even after slitting to cloth.

[0006] The technical solution to solve the above problems is as follows:

[0007] The slitting mechanism for cloth strip comprises a rack, a driving mechanism, a cloth cutting unit, a first support assembly, a first transmission assembly, a second support assembly and a second transmission assembly.

[0008] The first support assembly is connected to the rack.

[0009] The first transmission assembly is connected to the first support assembly and the driving mechanism.

[0010] The swing driver is connected with the first support assembly;

[0011] The swing arm assembly is hinged with the first support assembly and the swing driver respectively;

[0012] The cutter assembly is connected with the swing arm assembly, and the cutter is further matched with the first transmission assembly;

[0013] The cutter seat assembly is connected with the rack, and the cutter seat assembly is matched with the cutter.

[0014] Further, the driving mechanism comprises a motor, a transmission unit, a transmission shaft, the motor is connected with the transmission unit, the transmission unit is connected with the transmission shaft, the transmission shaft is rotationally connected with the rack, and the transmission shaft is connected with the first transmission assembly.

[0015] Further, the first support assembly comprises:

[0016] The main support is connected with the rack, and the first mounting hole is arranged on the main support;

[0017] The first movable seat provided with the second mounting hole is hinged with the main support, the accommodation cavity is formed between the main support and the first movable seat, the first transmission assembly is located in the accommodation cavity, the first transmission assembly is connected with the main support, and the swing arm assembly is connected with the first movable seat;

[0018] The first support is fixed with the main support, and the swing driver is connected with the first support.

[0019] Further, the rack comprises a rack body and a slide rail, and the slide rail is fixed with the rack body;

[0020] The main support comprises a main seat body, a locking screw and a locking block hinged with the main seat body, the assembly hole is arranged on the main seat body, the buckling part is arranged on the main seat body, the locking screw is matched with the locking block after the locking block is matched with the buckling part, and the locking block is tightly pressed against the slide rail.

[0021] Further, the first transmission assembly comprises a first gear and a first bearing, one end of the first gear is connected with the first bearing, and the first bearing is matched with the first mounting hole.

[0022] Further, the swing arm assembly comprises:

[0023] The swing arm;

[0024] The first connecting part connected with one end of the swing arm, the first connecting part is hinged with the swing driver, and the other end of the first connecting part is connected with the first support assembly;

[0025] The second connecting part connected with one end of the swing arm, and the other end of the second connecting part is connected with the first support assembly.

[0026] Furthermore, the cutting blade assembly includes:

[0027] The second bearing is connected to the swing arm assembly;

[0028] The sleeve mates with the second bearing.

[0029] The passive component cooperates with the first transmission assembly, and the passive component is sleeved on the sleeve and fixed to the sleeve.

[0030] The cutter is fixed to the sleeve.

[0031] Furthermore, the blade holder assembly includes a support component and an ultrasonic welding component. The ultrasonic welding component is fixed on the support component and cooperates with the cutting blade assembly.

[0032] In this invention, since the fabric is pressed between the cutter and the ultrasonic welding assembly, when the fabric is cut, the ultrasonic welding assembly provides support for the fabric on the one hand, and welds the cut edges of the fabric on the other hand, thereby forming a sewing effect on the cut edges of the fabric. This not only makes the cut fabric slices flat, but also prevents the cut edges of the fabric from becoming loose. Attached Figure Description

[0033] Figure 1 This is a perspective view of a fabric slitting mechanism.

[0034] Figure 2 for Figure 1 Enlarged view of part P in the image.

[0035] Figure 3 This is a three-dimensional view of the fabric cutting unit.

[0036] Figure 4 In order to be in Figure 3 The diagram shows the first movable seat, sleeve, and passive component hidden.

[0037] Figure 5 In order to be in Figure 3 The diagram below shows the casing hidden.

[0038] Figure 6 A three-dimensional view of the cut fabric unit from another direction.

[0039] Labels in the attached diagram:

[0040] Frame 1, frame body 1a, slide rail 1b, swing driver 2, motor 4, transmission unit 5, transmission shaft 6, main support 7, first mounting hole 7a, main seat body 7b, lock block 7c, assembly hole 7d, buckling part 7e, first movable seat 8, second mounting hole 8a, accommodating cavity 9, first support 10, extension part 10a, first gear 11, first bearing 12, swing arm 13, support shaft 13a, first connecting part 14, second connecting part 15, second bearing 16, sleeve 17, passive part 18, cutter 19, support part 20, ultrasonic welding assembly 21. DETAILED DESCRIPTION

[0041] The utility model will be described in further detail below in combination with the drawings and specific embodiments.

[0042] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are only for the convenience of describing the utility model and simplifying the description, and not for indicating or implying that the indicated device or element must have a particular orientation.

[0043] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0044] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited.

[0045] As shown in FIG. Figures 1 to 6 The slitting mechanism for cloth strip of the utility model, including frame 1, drive mechanism, cloth cutting unit, cloth cutting unit includes first support assembly, first transmission assembly, swing driver 2, swing arm assembly, cutter assembly, cutter holder assembly, the relationship between each part and the following detailed description.

[0046] The rack 1 comprises a rack body 1a, and slide rails 1b fixed to the rack body 1a, for example, by screws.

[0047] A driving mechanism is connected to the rack 1, and comprises a motor 4, a transmission unit 5, and a transmission shaft 6. The motor 4 is connected to the transmission unit 5, the transmission unit 5 is connected to the transmission shaft 6, the transmission shaft 6 is rotatably connected to the rack 1, and the transmission shaft 6 is connected to the first transmission assembly. The motor 4 is preferably an electric motor, the transmission unit 5 is preferably a belt transmission mechanism, the transmission shaft 6 has a polygonal cross section, a bearing is installed on the rack body 1a, the transmission shaft 6 is connected to the bearing on the rack body 1a, and the torque output by the motor 4 is transmitted to the transmission shaft 6 through the transmission unit 5, so that the transmission shaft 6 rotates relative to the rack 1.

[0048] A first support assembly is connected to the rack 1, and comprises a main support 7, a first movable seat 8, and a first support 10. The main support 7 is connected to the rack 1, and is provided with a first mounting hole 7a. The first movable seat 8 is provided with a second mounting hole 8a. The first mounting hole 7a and the second mounting hole 8a are used for the transmission shaft 6 to pass through. The first movable seat 8 is hingedly connected to the main support 7. A containing cavity 9 is formed between the main support 7 and the first movable seat 8. The first transmission assembly is located in the containing cavity 9, and is connected to the main support 7. A swing arm assembly is connected to the first movable seat 8. The first support 10 is fixed to the main support 7, and the swing driver 2 is connected to the first support 10.

[0049] The main support 7 comprises a main seat body 7b, a locking screw (not shown in the figure), and a locking block 7c hingedly connected to the main seat body 7b. The main seat body 7b is substantially L-shaped. The main seat body 7b is provided with an assembly hole 7d, which is a threaded hole. The main seat body 7b is provided with a buckling portion 7e. The assembly hole 7d is located at the upper part of the main seat body 7b. The buckling portion 7e is located at the lower part of the main seat body 7b and is fixed to the main seat body 7b. After the locking block 7c cooperates with the buckling portion 7e, the locking screw cooperates with the locking block 7c through the assembly hole 7d to tightly press the locking block 7c against the slide rail 1b. The locking screw is threadedly connected to the assembly hole 7d.

[0050] The first transmission assembly is matched with the first support assembly and connected with the driving mechanism. The first transmission assembly comprises a first gear 11 and a first bearing 12. One end of the first gear 11 is connected with the first bearing 12, and the first bearing 12 is matched with the first mounting hole 7a. The first gear 11 comprises a gear body and a sleeve fixed with the gear body. The sleeve is in interference fit with the first bearing 12, so that the first transmission assembly supports the first transmission assembly. The inner hole of the first gear 11 is polygonal. The transmission shaft 6 passes through the second mounting hole 8a and the first gear 11. The polygonal outer periphery of the transmission shaft 6 is matched with the polygonal inner hole of the first gear 11. When the transmission shaft 6 rotates, the torque can be transmitted to the first gear 11, so that the first gear 11 rotates relative to the main support 7.

[0051] The swing driver 2 is connected with the first support assembly. The swing driver 2 is a linear driving component, which can be a pneumatic cylinder or a hydraulic cylinder. The swing driver 2 is installed on the first support 10. The first support 10 is in U shape. The first support 10 is fixed with the main support 7. At least one end of the first support 10 has an extension part 10a. Since one end of the first movable seat 8 is hinged with the main support 7, the extension part 10a is matched with the other end of the first movable seat 8, so that the first movable seat 8 is located on the inner side of the first support 10. Therefore, the extension part 10a limits the first movable seat 8, avoiding the first movable seat 8 from moving to the outer side of the first support 10 during the swing process.

[0052] The swing arm assembly is hinged with the first support assembly and the swing driver 2. The swing arm assembly comprises a swing arm 13, a first connecting component 14 and a second connecting component 15. One end of the first connecting component 14 is connected with the swing arm 13. The first connecting component 14 is hinged with the swing driver 2. The other end of the first connecting component 14 is connected with the first support assembly. In this embodiment, the other end of the first connecting component 14 is connected with the first movable seat 8 in priority. When the swing driver 2 works, the swing driver 2 is connected with the swing arm 13. The other end of the second connecting component 15 is connected with the first support assembly.

[0053] The cutter assembly is connected to the swing arm assembly, and the cutter also cooperates with the first transmission assembly. The cutter assembly includes a second bearing 16, a sleeve 17, a driven component 18, and a cutter 19. The second bearing 16 is connected to the swing arm assembly. A support shaft 13a is provided on the swing arm 13. The second bearing 16 is sleeved on the support shaft 13a and connected to the support shaft 13a. The sleeve 17 cooperates with the second bearing 16, and the outer circumferential surface of the sleeve 17 is polygonal. The driven component 18 cooperates with the first transmission assembly. The driven component 18 is preferably a gear. The driven component 18 meshes with the first gear 11. The driven component 18 is sleeved on the sleeve 17 and fixed to the sleeve 17. The inner hole of the driven component 18 is a polygonal hole. After the driven component 18 is sleeved on the sleeve 17, it forms a circumferential fixation with the sleeve 17. The cutter 19 is fixed to the sleeve 17, and the cutter 19 and the sleeve 17 are integrally formed.

[0054] The blade holder assembly is connected to the frame 1 and cooperates with the cutting blade assembly. The blade holder assembly includes a support component 20 and an ultrasonic welding component 21. The ultrasonic welding component 21 is fixed on the support component 20 and cooperates with the cutting blade assembly.

[0055] In use, the fabric is passed through the gap between the cutter 19 and the ultrasonic welding assembly 21. The swing arm 13 is driven to swing by the swing driver 2 to adjust the pressure of the cutter 19 on the fabric. The motor 4 is started, and the torque output by the motor 4 is transmitted to the transmission shaft 6 through the transmission unit 5, causing the transmission shaft 6 to rotate relative to the frame 1. The transmission shaft 6 drives the first gear 11 to rotate, the first gear 11 drives the passive component 18 to rotate, the passive component 18 drives the sleeve 17 to rotate, and then the cutter 19 rotates, thereby cutting the fabric. Since the fabric is pressed between the cutter 19 and the ultrasonic welding assembly 21, when the fabric is cut, the ultrasonic welding assembly 21 provides support for the fabric on the one hand, and welds the cut edges of the fabric on the other hand, thereby forming a sewing effect on the cut edges of the fabric. This not only makes the cut fabric flat, but also prevents the cut edges of the fabric from becoming loose.

[0056] When the cut width needs to be adjusted, loosen the locking screw to release the clamping force of the locking screw on the locking block 7c, move the cutting unit along the axial direction of the drive shaft 6, and when adjusted to the required position, tighten the locking screw to make the locking screw clamp the locking block 7c, thereby fixing the cutting unit to the slide rail 1b.

Claims

1. A slitting mechanism for fabric strips, comprising a frame (1) and a drive mechanism, wherein the drive mechanism is connected to the frame (1), characterized in that, It also includes a fabric cutting unit, which includes: The first support assembly is connected to the frame (1); The first transmission assembly cooperates with the first support assembly and is connected to the drive mechanism; A swing actuator (2) is connected to a first support assembly; The swing arm assembly is hinged to the first support assembly and the swing drive (2); The cutter assembly is connected to the swing arm assembly, and the cutter also cooperates with the first transmission assembly; The tool holder assembly is connected to the frame (1) and cooperates with the cutting tool assembly.

2. The fabric slitting mechanism according to claim 1, characterized in that, The drive mechanism includes a motor (4), a transmission unit (5), and a transmission shaft (6). The motor (4) is connected to the transmission unit (5), the transmission unit (5) is connected to the transmission shaft (6), the transmission shaft (6) is rotatably connected to the frame (1), and the transmission shaft (6) is connected to the first transmission component.

3. The fabric slitting mechanism according to claim 1, characterized in that, The first support component includes: Main support (7), which is connected to the frame (1); the main support (7) is provided with a first mounting hole (7a); A first movable seat (8) with a second mounting hole (8a) is hinged to a main support (7), and a receiving cavity (9) is formed between the main support (7) and the first movable seat (8). The first transmission assembly is located in the receiving cavity (9) and is connected to the main support (7). The swing arm assembly is connected to the first movable seat (8). The first bracket (10) is fixed to the main support (7), and the swing driver (2) is connected to the first bracket (10).

4. The fabric slitting mechanism according to claim 3, characterized in that, The frame (1) includes a frame body (1a) and a slide rail (1b), and the slide rail (1b) is fixed to the frame body (1a); The main support (7) includes a main support body (7b), a locking screw, and a locking block (7c) hinged to the main support body (7b). The main support body (7b) is provided with an assembly hole (7d) and a fastening part (7e). After the locking block (7c) and the fastening part (7e) are engaged, the locking screw passes through the assembly hole (7d) and engages with the locking block (7c) to make the locking block (7c) press against the slide rail (1b).

5. The slitting mechanism for fabric strips according to claim 3, characterized in that, The first transmission assembly includes a first gear (11) and a first bearing (12). One end of the first gear (11) is connected to the first bearing (12), and the first bearing (12) is engaged with the first mounting hole (7a).

6. The slitting mechanism for fabric strips according to claim 1, characterized in that, The swing arm assembly includes: Swing arm (13); A first connecting part (14) is connected to the swing arm (13) at one end, the first connecting part (14) is hinged to the swing driver (2), and the other end of the first connecting part (14) is connected to the first support assembly. A second connecting component (15) is connected at one end to the swing arm (13), and the other end of the second connecting component (15) is connected to the first support assembly.

7. The slitting mechanism for fabric strips according to claim 1, characterized in that, The cutter assembly includes: The second bearing (16) is connected to the swing arm assembly; Sleeve (17), sleeve (17) is fitted with second bearing (16); Passive component (18) cooperates with the first transmission assembly. The passive component (18) is sleeved on the sleeve (17) and fixed to the sleeve (17). The cutter (19) is fixed to the sleeve (17).

8. The slitting mechanism for fabric strips according to claim 1, characterized in that, The blade holder assembly includes a support component (20) and an ultrasonic welding component (21). The ultrasonic welding component (21) is fixed on the support component (20) and cooperates with the cutting blade assembly.

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