Fabric weft straightening device, weft finishing machine and flower finishing and weft finishing machine

Abstract

The utility model relates to the field of spinning, in particular to a fabric weft straightening device, a weft straightener and a flower and weft straightener. The fabric weft-direction straightening device comprises two thorn shafts and a warp-direction tension auxiliary confrontation mechanism, the two thorn shafts are distributed on the two sides of a conveyed fabric in the weft direction, each thorn shaft is provided with at least two thorn rings in the axial direction, a plurality of pricking needles are arranged on the circumferential faces of the thorn rings, and each thorn shaft is provided with a tension auxiliary confrontation mechanism from the end away from the fabric to the end close to the fabric. The fabric is inclined towards the surface of the fabric; the warp-direction tension auxiliary confrontation mechanism comprises a cloth guide roller assembly and a moving driving mechanism, and the moving driving mechanism is connected with the cloth guide roller assembly and used for driving the cloth guide roller assembly to drive the fabric to confront the warp-direction tension of the fabric to reach the corresponding barbed rings.

Description

Technical Field

[0001] The utility model relates to the field of textiles, in particular to a fabric weft straightening device, a weft straightening machine and a pattern straightening and weft straightening machine. Background Art

[0002] Weft straightening of loose fabrics is relatively difficult. Even relying solely on weft straightening machines for weft straightening makes it difficult to ensure quality and performance in subsequent processes. This is primarily due to the physical properties of loose fabrics. They typically have a low density and high bulk, making them more susceptible to deformation during processing. During weft straightening, the weft position of the fabric must be adjusted to maintain a perpendicular or specific angle between the weft and warp yarns. These physical properties of loose fabrics make them more susceptible to stretching, deformation, twisting, and wrinkling during weft straightening, making it difficult to ensure the smoothness and overall quality of the composite fabric. Therefore, weft straightening of the fabric is essential during weft straightening.

[0003] In a loom, the fabric is stretched using a barbed wire, which is parallel to the weft direction of the fabric. If the barbed wire is directly used in the weft straightening process, considering the loose characteristics of loose fabrics and the relatively high tension in the warp direction of the fabric, the weft straightening process using the barbed wire will cause the needle holes in the part of the fabric that contacts the barbed wire to be relatively large, and will be subsequently cut off as defective products. Therefore, to avoid waste, the width of the fabric in contact with the barbed wire should not be too wide. However, if the part of the fabric that contacts the barbed wire is set to be relatively narrow, during the weft straightening process, the fabric will be pulled relatively tightly and the tension is relatively high, which will cause the fabric to fall off the barbed wire.

[0004] Therefore, it is urgent to design a fabric weft straightening device suitable for weft straightening of loose fabrics. Summary of the Invention

[0005] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a fabric weft straightening device, which can well straighten the loose fabric in the weft straightening process without causing excessive waste of fabric and solving the problem of edge falling.

[0006] In order to solve the above technical problems, the technical solution of the utility model is: a fabric weft straightening device, comprising:

[0007] Two barbed shafts are distributed on both sides of the conveyed fabric in the weft direction, the barbed shafts having at least two barbed rings in the axial direction, the circumference of the barbed rings being provided with a plurality of needles, and each barbed shaft is arranged obliquely toward the fabric surface from the end away from the fabric to the end close to the fabric;

[0008] The warp tension auxiliary countermeasure mechanism includes a cloth guide roller assembly and a movable drive mechanism. The movable drive mechanism is connected to the cloth guide roller assembly and is used to drive the cloth guide roller assembly to drive the fabric to counter the warp tension of the fabric and reach the corresponding thorn ring.

[0009] A preferred inclination angle of the pricking shaft is further provided, wherein the angle α between the pricking shaft and a plane a perpendicular to the moving direction A of the cloth guide roller assembly is 3°-45°.

[0010] In order to facilitate the adjustment of the contact time between the fabric and the thorn ring, the angle between the thorn shaft and the fabric conveying direction is an acute angle or an obtuse angle.

[0011] Furthermore, the warp tension auxiliary countermeasure mechanism is provided with two, and is distributed in the front and rear paths of the pricking shaft along the fabric conveying direction.

[0012] A specific structure of a mobile driving mechanism is further provided, wherein the mobile driving mechanism is a cylinder, a linear module, or an electric push rod.

[0013] Furthermore, the thorn shaft also includes a core shaft and at least two thorn ring seats. The core shaft is installed on a frame, and each thorn ring is rotatably installed on the core shaft through a thorn ring seat.

[0014] Furthermore, the angle β between the central axis of the thorn ring and the central axis of the core shaft is 3°-45°.

[0015] Furthermore, the angles β between the central axes of all the thorn rings and the central axis of the core shaft are equal, or the angles β between the central axes of at least two of the thorn rings and the central axis of the core shaft are unequal.

[0016] The utility model also relates to a weft straightening machine, comprising a fabric weft straightening device.

[0017] The utility model also relates to a fabric weft straightening machine, comprising a fabric weft straightening device.

[0018] After adopting the above technical solution, the utility model tilts the barbed shaft so that the loose fabric can only contact the needles on one barbed ring, avoiding the width of the fabric in contact with the barbed shaft being too wide and avoiding unnecessary waste. Moreover, since there are at least two barbed rings, even if the loose fabric falls off the original barbed ring during the weft correction process, it can fall onto other barbed rings and still be able to perform weft correction. Moreover, considering that the fabric is pulled relatively tightly during the weft straightening process and the warp tension is relatively large, there is a situation where the fabric cannot climb up the corresponding barbed ring. The utility model also drives the guide roller to push the fabric to move through the mobile drive mechanism, assisting the fabric to resist the warp tension of the fabric, so that the relatively tight fabric can smoothly reach the corresponding barbed ring. Therefore, the fabric weft straightening device in the utility model can perform weft straightening on the fabric during the weft straightening process, without causing excessive waste of fabric, and also solves the problem of falling edges. It is particularly suitable for loose fabrics. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of the fabric weft straightening device of the present invention;

[0020] Figure 2 for Figure 1 A possible side view of the fabric weft straightening device in FIG.

[0021] Figure 3 for Figure 1 Another possible side view of the fabric weft straightening device;

[0022] Figure 4 This is a schematic structural diagram of the thorn shaft of the utility model;

[0023] Figure 5 It is a cross-sectional view of the thorn shaft of the utility model;

[0024] In the figure, 1. Barbing shaft; 11. Barbing ring; 12. Core shaft; 13. Barbing ring seat; 2. Fabric; 3. Barbing needle; 4. Fabric guide roller assembly; 5. Moving drive mechanism; 6. Frame. DETAILED DESCRIPTION

[0025] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0026] Example 1

[0027] like Figures 1 to 5 As shown, a fabric weft straightening device comprises:

[0028] Two barbed shafts 1 are distributed on both sides of the fabric 2 in the weft direction of the fabric 2 being transported. The barbed shafts 1 have at least two barbed rings 11 in the axial direction. A plurality of barbed needles 3 are arranged on the circumference of the barbed rings 11. Each barbed shaft 1 is arranged obliquely toward the surface of the fabric 2 from the end away from the fabric 2 to the end close to the fabric 2.

[0029] The warp tension auxiliary counteracting mechanism includes a cloth guide roller assembly 4 and a movable drive mechanism 5. The movable drive mechanism 5 is connected to the cloth guide roller assembly 4 and is used to drive the cloth guide roller assembly 4 to drive the fabric 2 to counteract the warp tension of the fabric 2 and reach the corresponding thorn ring 11.

[0030] Specifically, in this embodiment, the barbed shaft 1 is tilted so that the fabric 2 can only contact the needles 3 on one barbed ring 11, thereby preventing the width of the fabric 2 in contact with the barbed shaft from being too wide and thus avoiding unnecessary waste. Moreover, since there are at least two barbed rings 11, even if the fabric 2 falls off the original barbed ring 11 during the weft straightening process, it can fall onto other barbed rings 11 and still be straightened in the weft direction. Furthermore, considering that the fabric 2 is stretched relatively tight during the weft straightening process and the warp tension is relatively large, there is a possibility that the fabric cannot climb up the corresponding barbed ring 11. In this embodiment, the fabric guide roller assembly 4 is driven by the mobile drive mechanism 5 to push the fabric 2 to move, thereby assisting the fabric 2 in resisting the warp tension of the fabric 2, thereby allowing the relatively tight fabric 2 to smoothly reach the corresponding barbed ring 11. Therefore, the fabric weft straightening device in this embodiment can straighten the fabric 2 in the weft straightening process without causing excessive waste of the fabric 2 and solving the problem of falling edges. It is particularly suitable for loose fabrics 2.

[0031] In this embodiment, the needles 3 can be steel needles. All the needles 3 can be of equal length, or they can be arranged along the axial direction of the needle shaft 1 from the end close to the fabric 2 to the end far away from the fabric 2, with the length gradually increasing.

[0032] In this embodiment, the specific tilt direction of the needle shaft 1 is related to the conveying direction of the fabric 2 and the direction of the weft direction, for example:

[0033] When the fabric is transported from front to back and the weft direction is in the left-right direction, the barbed shaft 1 is inclined from the end away from the fabric 2 to the end close to the fabric 2, toward the surface of the fabric 2, that is, from the end away from the fabric 2 to the end close to the fabric 2, upward or downward.

[0034] When the fabric is transported from front to back and the weft direction is located in the up and down direction, the barbed shaft 1 is tilted toward the surface of the fabric 2 from the end away from the fabric 2 to the end close to the fabric 2, that is, tilted to the left or right from the end away from the fabric 2 to the end close to the fabric 2.

[0035] exist Figure 1In the example shown, the barbed shaft 1 is tilted downward from the end away from the fabric 2 to the end close to the fabric 2, and the movable drive mechanism 5 is used to drive the cloth guide assembly 4 to drive the fabric 2 to move upward to counteract the warp tension of the fabric 2 to reach the corresponding barbed ring 11. After the fabric 2 reaches the corresponding barbed ring 11 at a high position, the needle 3 on the corresponding barbed ring 11 at a high position penetrates the edge of the fabric 2. During the process of the fabric 2 being transported, the fabric 2 drives the barbed ring 11 into which the needle 3 penetrates to rotate. The barbed ring 11 stretches the fabric 2 during the rotation process to achieve weft straightening. Once the fabric 2 falls off, the needle 3 on the relatively low barbed ring 11 can still penetrate the fabric 2 and can still perform weft straightening on the fabric 2. After it is found that the fabric 2 falls onto the low barbed ring 11, the movable drive mechanism 5 can drive the cloth guide assembly 4 to drive the fabric 2 to move upward to the best barbed ring 11 at a high position.

[0036] In this embodiment, if Figure 3 As shown, the angle α between the barbed shaft 1 and a plane a perpendicular to the direction of movement A of the fabric guide roller assembly 4 is 3°-45°. When the fabric guide roller assembly 4 moves in the vertical direction, plane a becomes a horizontal plane, meaning the angle α between the barbed shaft 1 and the horizontal plane is 3°-45°. While maintaining the angle with the horizontal plane, the barbed shaft 1 can be tilted toward the direction of fabric 2 transport, forming an acute angle, or tilted in the direction opposite to the fabric transport direction, forming an obtuse angle. This can be adjusted based on actual needs to facilitate, for example, adjusting the contact time between the barbed ring 11 and the fabric 2.

[0037] In this embodiment, if Figure 4 and Figure 5 As shown, the thorn shaft 1 also includes a core shaft 12 and at least two thorn ring seats 13. The core shaft 12 is mounted on a frame 6, and each thorn ring 11 is rotatably mounted on the core shaft 12 through a thorn ring seat 13. The thorn shaft 1 is a relatively mature existing technology and will not be described in detail here. Figure 4 As shown, the angle β between the central axis of the thorn ring 11 and the central axis of the core shaft 12 can be 3°-45°, such as 3°, 12°, 21°, 45°, etc., of course, it can also be other angles. Figure 5 As shown, all the thorn rings 11 can be arranged in parallel, that is, the angles β between the central axis of all the thorn rings 11 and the central axis of the core shaft 12 are equal. Figure 4 As shown, at least two thorn rings 11 may be arranged non-parallel, that is, the angles β between the central axes of at least two thorn rings 11 and the central axis of the core shaft 12 are not equal.

[0038] In this embodiment, the structure of the mobile driving mechanism 5 can be various, such as a cylinder, a linear module, an electric push rod, etc.

[0039] In this embodiment, the cloth guide roller assembly 4 includes a roller seat and a cloth guide roller. The cloth guide roller is rotatably supported on the roller seat. The mobile drive mechanism 5 is connected to the roller seat. A slide rail can also be set on the frame 6, and the roller seat is slidably installed on the slide rail.

[0040] In this embodiment, if Figure 2 As shown, the warp tension auxiliary countermeasure mechanism is provided with one, which is located near the thorn shaft 1 and is located in the front or rear path of the thorn shaft 1 along the conveying direction of the fabric 2.

[0041] Example 2

[0042] The main difference between this embodiment and the first embodiment is that Figure 3 As shown, there are two warp tension auxiliary countermeasures, which are distributed in the front and rear paths of the pricking shaft 1 along the conveying direction of the fabric 2.

[0043] Example 3

[0044] A weft straightening machine includes the fabric weft straightening device of embodiment one or embodiment two.

[0045] Example 4

[0046] A fabric weft straightening machine includes the fabric weft straightening device of the first or second embodiment.

[0047] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A fabric weft straightening device, characterized in that: include: Two pricking shafts (1) are distributed on both sides of the conveyed fabric (2) in the weft direction, the pricking shafts (1) have at least two pricking rings (11) in the axial direction, and a plurality of pricking needles (3) are arranged on the circumference of the pricking rings (11), and each pricking shaft (1) is arranged obliquely toward the surface of the fabric (2) from the end away from the fabric (2) to the end close to the fabric (2); A warp tension auxiliary countermeasure mechanism comprises a cloth guide roller assembly (4) and a movable drive mechanism (5), wherein the movable drive mechanism (5) is connected to the cloth guide roller assembly (4) and is used to drive the cloth guide roller assembly (4) to drive the fabric (2) to counter the warp tension of the fabric (2) and reach a corresponding thorn ring (11).

2. The fabric weft straightening device according to claim 1, characterized in that: The included angle α between the pricking shaft (1) and a plane a perpendicular to the moving direction A of the cloth guide roller assembly (4) is 3°-45°.

3. The fabric weft straightening device according to claim 1, characterized in that: The angle between the thorn shaft (1) and the fabric conveying direction is an acute angle or an obtuse angle.

4. The fabric weft straightening device according to claim 1, characterized in that: The warp tension auxiliary countermeasure mechanism is provided with two, and is distributed in the front and rear paths of the pricking shaft (1) along the conveying direction of the fabric (2).

5. The fabric weft straightening device according to claim 1, characterized in that: The mobile driving mechanism (5) is a cylinder, a linear module or an electric push rod.

6. The fabric weft straightening device according to claim 1, characterized in that: The thorn shaft (1) further comprises a core shaft (12) and at least two thorn ring seats (13); the core shaft (12) is mounted on a frame (6); and each thorn ring (11) is rotatably mounted on the core shaft (12) via a thorn ring seat (13).

7. The fabric weft straightening device according to claim 6, characterized in that: The included angle β between the central axis of the thorn ring (11) and the central axis of the core shaft (12) is 3°-45°.

8. The fabric weft straightening device according to claim 6, characterized in that: The included angles β between the central axes of all the thorn rings (11) and the central axis of the core shaft (12) are equal, or the included angles β between the central axes of at least two thorn rings (11) and the central axis of the core shaft (12) are unequal.

9. A weft straightening machine, characterized in that: The invention comprises the fabric weft straightening device according to any one of claims 1 to 8.

10. A weft straightening machine, characterized in that: The invention comprises the fabric weft straightening device according to any one of claims 1 to 8.

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