CN210675413U - Cutting and smashing device for spandex filaments - Google Patents

Abstract

The utility model relates to a device is smashed in cutting of spandex silk, including quick-witted case, axle swivelling joint is in the upper portion of quick-witted case, the axle is at quick-witted incasement fixed assembly's knife rest, fixedly connected with cutter unit spare A on the knife rest, the internal face fixedly connected with cutter unit spare B of machine case, cutter unit spare A sets up with cutter unit spare B's cutting edge relatively to distance between the cutting edge is 5~10mm, there is the contained angle between cutter unit spare A and cutter unit spare B's the cutting edge, the discharge gate has been seted up to the machine case in the below of knife rest. The cutter frame rotates along with the rotating shaft, so that the cutter component A is driven to rotate, and an included angle exists between the cutter component A and the cutter component B fixed on the inner wall of the box body. When cutter unit spare A is rotatory along with the knife rest, when being close to cutter unit spare B gradually, because there is the contained angle between cutter unit spare A and the cutter unit spare B, cutter unit spare A's cutting edge and cutter unit spare B's cutting edge can produce the effect that the extrusion was cuted, cuts off effectually, and the knife rest is along with the pivot high rotation, can show the efficiency that the improvement cutting was smashed.

Description

A device for cutting and breaking spandex yarn

technical field

The utility model relates to the field of textiles, in particular to a device for cutting and smashing spandex yarns.

Background technique

Spandex is a kind of elastic fiber. It has high elasticity and can be stretched to 6~7 times. When the tension disappears, it can quickly return to the original state. The scientific name of spandex is polyurethane elastic fiber, which has good weather resistance, flex resistance, wear resistance and other properties. The main methods of spinning spandex are: dry spinning, wet spinning, melt spinning, and chemical reaction. The raw material for spinning can use waste spandex yarn. The waste spandex yarn is recycled, melted for a second time, and various auxiliary materials are added to re-spin, which can effectively reduce the production cost. Before the waste spandex yarn is melted, it needs to be cut and smashed. The current method is to cut it with a cutting machine. Due to the large elasticity of spandex yarn, the effect of direct cutting with a cutting machine is not good, and the efficiency is not high. The crushing effect is not ideal.

Utility model content

The technical problem to be solved by the utility model is to provide a device for cutting and smashing spandex yarn, which can improve the cutting efficiency and have a better smashing effect.

The utility model is realized through the following technical solutions:

A device for cutting and smashing spandex yarn, comprising a case, a shaft is rotatably connected to the upper part of the case, the shaft is fixedly assembled with a knife holder in the case, and a cutter assembly A is fixedly connected to the knife holder, and a cutter assembly A is fixedly connected to the case. The inner wall surface is fixedly connected with a cutter assembly B, the cutter assembly A and the blade of the cutter assembly B are arranged opposite to each other, and the distance between the blades is 5~10mm, the blade of the cutter assembly A and the cutter assembly B There is an included angle therebetween, and the chassis is provided with a discharge port under the tool rest.

A further improvement scheme of the present invention is that the cutter assembly A includes four pairs of cutters A, the four pairs of cutters A are evenly and fixedly connected to the tool rest in the circumferential direction of the shaft, and each pair of cutters A is connected to the center of the case. The axis is symmetrically and fixedly connected to the knife holder, and the included angle between each pair of cutting knives A is 120 degrees to 150 degrees.

A further improvement scheme of the present invention is that the cutter assembly B includes two pairs of cutters B, the two pairs of cutters B are relatively fixedly connected to the inner wall surface of the case, and each pair of cutters B is connected to the central axis of the case. It is symmetrically and fixedly connected to the inner wall surface of the chassis, and the included angle between each pair of cutters B is 120 degrees to 150 degrees; the included angles of the two pairs of cutters B are in opposite directions.

A further improvement scheme of the present invention is that the cross-sections of the cutter A and the cutter B are right-angled trapezoids, the upper bottom of the cutter A is fixedly connected to the tool rest, and the upper bottom of the cross-section of the cutter B is connected to the The top and bottom of the section of the cutter A are opposite to each other.

A further improvement scheme of the present invention is that the case is provided with a filter plate between the tool rest and the discharge port, and the filter plate is fixedly connected with the inner wall surface of the case.

A further improvement scheme of the present invention is that a suction device is connected to the discharge port.

A further improvement scheme of the present utility model is that the upper end of the chassis is rotatably connected to the cover, and the cover is provided with a feeding port.

Compared with the prior art, the utility model has the following obvious advantages:

1. The knife holder rotates with the rotating shaft, thereby driving the cutter assembly A to rotate. There is an angle between the cutter assembly A and the cutter assembly B fixed on the inner wall of the box. When the cutter assembly A rotates with the knife holder and gradually approaches the cutter assembly B, because of the included angle between the cutter assembly A and the cutter assembly B, the blade of the cutter assembly A and the blade of the cutter assembly B will be squeezed. The effect of pressing and shearing, the cutting effect is good, and the knife holder rotates with the height of the rotating shaft, which can significantly improve the efficiency of cutting and breaking.

2. Four pairs of cutters A are set on the knife holder, and the knife holder rotates once, which can cut and smash four times, which significantly improves the efficiency of cutting and smashing. The included angle between each pair of cutters A is 120 degrees to 150 degrees, which can produce better shearing effect, and each pair of cutters A can carry an appropriate amount of spandex yarn for cutting and breaking.

3. Two pairs of cutters B are arranged on the inner wall of the chassis, and the included angle between each pair of cutters B is 120 degrees to 150 degrees. When matched with the included angle of cutter A, it can produce better cutting effects. The directions of the included angles between the two pairs of cutters B are opposite, because the cutters A on the tool rest can only rotate in one direction, in order to achieve the same cutting effect, the directions of the included angles of the two pairs of cutters B are opposite.

4. The cross-sections of cutter A and cutter B are right-angled trapezoids, and the angled surface is the blade surface. The upper bottom of cutter A is firmly connected to the tool holder, and the upper bottom of the section of cutter B is the same as that of cutter A. The top and bottom of the section are opposite to ensure that the blade of the cutter A is always opposite to the cutter B during the rotation of the cutter A, which has the best cutting effect.

5. The chassis is provided with a filter plate between the knife holder and the discharge port, so that the spandex yarn that does not meet the cutting requirements can be taken away by the cutter A again for secondary cutting.

6. The discharge port is equipped with a suction device. The spandex yarn after being cut and broken is lighter in quality. Using the suction device, the spandex yarn can be pulled out of the chassis for collection.

7. A cover is set on the chassis to play a good protective effect, and the feeding port is set on the cover to facilitate adding materials.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of the utility model;

Fig. 2 is a three-dimensional schematic diagram of the assembly of the chassis and the cutter B;

Fig. 3 is a three-dimensional schematic diagram of the assembly of the knife holder and the cutter A;

Figure 4 is a three-dimensional schematic diagram of cutter A and cutter B;

Figure 5 is a schematic perspective view of the housing.

Detailed ways

The utility model will be further described below with reference to the accompanying drawings and embodiments.

As shown in Figures 1 and 5, the present invention includes a case 1, the upper end of the case 1 is rotatably connected with a shaft 2 through a bearing, one end of the shaft 2 is fixedly assembled with a pulley 7, and the pulley 7 is connected with a driving device ( (not shown in the figure) is driven, and the other end of the rotating shaft 2 is fixedly equipped with a flywheel 8. The blades of the cutter assembly A41 and the cutter assembly B42 are disposed opposite to each other, and the distance between the blades during cutting is 2-5 mm.

The tool holder 3 is fixedly assembled in the middle of the rotating shaft 2. The cross-sectional shape of the tool holder 3 in this embodiment is a square. Four blade fixing plates A31 are welded on the four surfaces of the tool holder 3 along the circumferential direction of the shaft 2. The blade fixing plates 31A has a "V"-shaped structure and is symmetrically arranged with respect to the axial center of the tool holder 3 . The "V"-shaped included angle of the blade fixing plate A31 is 120 degrees, and the cutter A41' is fixedly connected by bolts. The section of the cutter A41' is a right-angled trapezoid, and the upper bottom surface of the cutter A41' is fastened to the blade fixing plate A. In order to facilitate positioning and adjustment, the hole on the cutter A41' is expanded into a waist-shaped hole.

Two blade fixing plates B13 are fixedly connected by welding on the upper part of the inner wall surface of the case 1 , which are located on both axial sides of the shaft 2 respectively. In FIG. 2 , the front-end blade fixing plate B13 has an inverted “V”-shaped structure, and is symmetrically arranged with respect to the axial center of the tool holder 3 , and the included angle of the “V”-shaped is 120 degrees. A cutter B42' is mounted on the blade fixing plate B13 by bolts, and the shape of the cutter B42' is the same as that of the cutter A41'. The lower bottom surface of the cutter B42' is tightly fixed to the blade fixing plate B13. In FIG. 2 , the blade fixing plate B13 located at the rear end has a “V”-shaped structure, and is symmetrically arranged with respect to the axial center of the tool holder 3 , and the included angle of the “V”-shaped is 120 degrees. The upper bottom surface of the cutter B42' is tightly fixed to the blade fixing plate B13.

The lower end of the chassis 1 is provided with a discharge port 11 , and the discharge port 11 is connected with a suction device 5 . The chassis 1 is provided with a filter plate 12 between the tool rest 3 and the discharge port 11 , and the filter plate 12 is fixedly connected to the inner wall surface of the chassis 1 by welding. The upper end of the chassis 1 is rotatably connected to the casing 6 through the ear plate 14 , and the casing 6 is provided with a feeding port 61 .

The tool holder assembly is installed in the direction shown in Figure 1. From the perspective of Figure 1, the shaft 2 is driven by the drive device to rotate counterclockwise. At this time, the blades of the cutter A41' and the cutter B42' can play For the best extrusion and shearing effect, the distance between the cutting edge of cutter A41' and cutter B42' is 3mm. At the same time, during the rotation of the cutter A41', the "V"-shaped angle is always opposite, ensuring the maximum accommodation space, and can cut the most spandex yarn each time.

The working process is: cover the top of the case 1 with the cover 6, dump the waste spandex yarn into the feeding port 61, the cutter A41' rotates counterclockwise under the drive of the driving device (the position shown in Figure 1), and the cutter A41' The "V"-shaped surface between them can continuously carry waste spandex yarn for cutting and breaking. The spandex filaments that meet the requirements are broken through the filter plate 12 to the bottom of the box 1, and then discharged from the outside of the box 1 through the suction device 5.

Claims (7)

1. A device for cutting and smashing spandex yarn, characterized in that it comprises a case (1), a shaft (2) is rotatably connected to the upper part of the case (1), and the shaft (2) is fixedly assembled in the case (1) There is a knife holder (3), a cutter assembly A (41) is fixedly connected to the knife holder (3), and a cutter assembly B (42) is fixedly connected to the inner wall surface of the chassis (1). The blades of the component A (41) and the cutting blade assembly B (42) are arranged opposite to each other, and the distance between the blades during cutting is 2 to 5 mm. The cutting blades of the cutting blade assembly A (41) and the cutting blade assembly B (42) There is an included angle therebetween, and the chassis (1) is provided with a discharge port (11) below the tool holder (3). 2. The device for cutting and smashing spandex yarn according to claim 1, wherein the cutter assembly A (41) comprises four pairs of cutters A (41'), the four pairs of cutters A (41'). 41') is evenly and fixedly connected to the tool rest in the circumferential direction of the shaft (2). The included angle between (41') is 120°~150°. 3. The device for cutting and smashing spandex yarn according to claim 2, wherein the cutter assembly B (42) comprises two pairs of cutters B (42'), the two pairs of cutters B (42'). 42') is relatively and fixedly connected to the inner wall surface of the chassis (1), and each pair of cutting knives B (42') is symmetrically and fixedly connected to the inner wall surface of the chassis (1) with the central axis of the chassis (1). The included angle between B (42') is 120 degrees to 150 degrees; the included angles of the two pairs of cutting knives B (42') are in opposite directions. 4. A device for cutting and smashing spandex yarn according to claim 3, characterized in that: the cross-sections of the cutter A (41') and the cutter B (42') are right-angled trapezoids, and the cutter A (42') The upper bottom of (41') is tightly connected to the knife holder (3) for fixed connection, and the upper bottom of the section of the cutter B (42') is opposite to the upper bottom of the section of the cutter A (41'). 5. The device for cutting and smashing spandex yarn according to claim 1, characterized in that: the case (1) is provided with a filter plate (12) between the tool holder (3) and the discharge port (11). , the filter plate (12) is fixedly connected with the inner wall surface of the chassis (1). 6 . The device for cutting and smashing spandex yarn according to claim 1 , wherein a suction device ( 5 ) is connected to the discharge port ( 11 ). 7 . 7. The device for cutting and smashing spandex yarn according to claim 1, characterized in that: the upper end of the case (1) is rotatably connected to a cover (6), and the cover (6) is provided with a feeder mouth (61).

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