Fabric corner-falling-preventing device and fabric processing equipment applying fabric corner-falling-preventing device

Abstract

The utility model relates to the field of spinning, in particular to a fabric corner-falling-preventing device and fabric processing equipment applying the fabric corner-falling-preventing device. The fabric corner falling prevention device comprises a cloth guide roller, two rotatable pressing rollers and two first moving driving mechanisms, the cloth guide roller is configured to be a power roller and used for supporting fabric, and each pressing roller is used for pressing one side edge of the fabric on the cloth guide roller; each first movement driving mechanism corresponds to one pressing roller, is connected with the corresponding pressing roller and is used for driving the corresponding pressing roller to move in the axial direction of the cloth guide roller. The anti-corner-falling device can effectively prevent corners of the fabric from falling in the fabric production and processing process.

Description

Technical Field

[0001] This utility model relates to the textile field, specifically to a fabric anti-corner-dropping device and fabric treatment equipment using the same. Background Technology

[0002] For some types of fabrics, such as ice silk fabrics, the high weight (generally greater than 400g / m2), low warp and weft density, and weak cohesion between yarns due to the characteristics of their fiber materials result in a noticeably loose overall structure. During continuous production, when the fabric passes through the guide rollers, the mechanical traction and self-overlapping forces cause systematic weft slippage on both or one side of the fabric's edges, resulting in corner slippage (typically 10-30 cm wide, with the weft yarns exhibiting localized tilting and bending).

[0003] Once a corner chipps off, manually pulling and correcting it later is highly unpredictable. Therefore, in most cases, the chipped part is simply cut off, which results in significant material waste.

[0004] Therefore, there is an urgent need to design a device that can prevent such fabrics from chipping at the corners in advance in order to solve the above problems. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a fabric corner-preventing device that can effectively prevent fabric corners from falling off during the fabric production and processing process.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a fabric anti-corner-dropping device, comprising:

[0007] The guide roller, configured as a power roller, is used to support the fabric.

[0008] Two rotatable pressure rollers, each used to press one side of the fabric against the guide roller;

[0009] Two first moving drive mechanisms, each corresponding to a pressure roller and connected to the corresponding pressure roller, are used to drive the corresponding pressure roller to move axially along the guide roller.

[0010] Furthermore, to broaden its application range, the fabric anti-drop corner device also includes a pressure roller motor corresponding to the pressure roller, the pressure roller motor being connected to the pressure roller to drive rotation.

[0011] Furthermore, in order to enable the pressure roller to move automatically along the side of the fabric, the fabric anti-drop corner device also includes:

[0012] An edge detection mechanism is used to detect the position of the fabric's side edges.

[0013] The controller is connected to the edge detection mechanism and the first moving drive mechanism respectively, and is used to control the first moving drive mechanism to drive the pressure roller to move according to the side position detected by the edge detection mechanism.

[0014] Furthermore, in order to facilitate the release of the pressure roller from the fabric and to press the fabric, the fabric anti-drop corner device also includes a second moving drive mechanism, which is connected to the pressure roller and is used to drive the pressure roller to move toward and away from the guide roller.

[0015] Furthermore, the fabric anti-drop corner device also includes two mounting frames, each mounting frame corresponding to a pressure roller. The pressure roller is mounted on the corresponding mounting frame, the second moving drive mechanism is connected to the mounting frame, and the first moving drive mechanism is connected to the second moving drive mechanism.

[0016] Furthermore, the fabric anti-drop corner device also includes a frame, on which the guide roller is rotatably mounted, and the first moving drive mechanism is mounted on the frame.

[0017] Furthermore, the guide roller is a rubber-coated roller.

[0018] Furthermore, the axial direction of the pressure roller is parallel to the axial direction of the guide roller.

[0019] This utility model also includes a fabric processing device, comprising a fabric anti-corner-dropping device.

[0020] Furthermore, the fabric processing equipment is a weft straightening machine, a setting machine, or a fabric compounding machine.

[0021] By adopting the above technical solution, the present invention has the following beneficial effects:

[0022] For fabrics with high basis weight, low warp and weft density, and weak inter-yarn cohesion, such as ice silk fabrics, when conveyed to the guide roller, there is a high probability that the two sides of the fabric will have already slightly chipped, and the middle part will slip relative to the guide roller (i.e., the running speed of the middle part of the fabric is less than the linear speed of the guide roller). By pressing the two sides of the fabric tightly onto the guide roller with two pressure rollers, the running speed of the two sides of the fabric is consistent with the linear speed of the guide roller, and slightly greater than the running speed of the middle part of the fabric. This creates a speed difference between the two sides of the fabric and the middle part of the fabric, effectively compensating for the weft slippage caused by the weight of the fabric sides and the weak cohesion with the guide roller, thus preventing the chipping phenomenon. If the fabric has already slightly chipped when it reaches the guide roller, the slight chipping can also be corrected. Even if such fabrics do not experience corner slippage or slippage between the middle section and the guide roller when conveyed to the guide roller, corner slippage can still easily occur as they pass through the guide roller (mainly because the middle section of the fabric adheres better to the guide roller, while the sides adhere poorly, resulting in weak cohesion). By pressing the fabric sides firmly against the guide roller using pressure rollers on both sides, corner slippage can be effectively prevented. Therefore, regardless of whether the fabric has a high basis weight, low warp and weft density, or weak inter-yarn cohesion, or whether the sides slip or the middle section slips when passing through the guide roller, the fabric anti-corner slippage device in this invention can effectively prevent corner slippage. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the first type of fabric anti-corner-dropping device of this utility model;

[0024] Figure 2 This is an isometric view of the second type of fabric anti-corner-dropping device of this utility model;

[0025] Figure 3 for Figure 2 The main view;

[0026] Figure 4 for Figure 3 Enlarged view of part A;

[0027] In the figure, 1 is the guide roller; 2 is the pressure roller; 3 is the first moving drive mechanism; 4 is the second moving drive mechanism; 5 is the frame; 6 is the guide roller motor; 7 is the reducer; 8 is the pressure roller motor; and 9 is the mounting frame. Detailed Implementation

[0028] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0029] Example 1

[0030] like Figure 1 As shown, a fabric corner-preventing device includes:

[0031] Guide roller 1, configured as a power roller, is used to support the fabric.

[0032] Two rotatable pressure rollers 2, each pressure roller 2 is used to press one side of the fabric against the guide roller 1;

[0033] Two first moving drive mechanisms 3, each corresponding to a pressure roller 2 and connected to the corresponding pressure roller 2, are used to drive the corresponding pressure roller 2 to move axially along the guide roller 1.

[0034] Specifically, for fabrics with high basis weight, low warp and weft density, and weak cohesion between yarns, such as ice silk fabrics, when conveyed to the guide roller 1 in this embodiment, there is a high probability that the two sides have already slightly lost their corners, and the middle part is slipping relative to the guide roller 1 (i.e., the running speed of the middle part of the fabric is less than the linear speed of the guide roller 1). By pressing the two sides of the fabric onto the guide roller 1 with two pressure rollers 2, the running speed of the two sides of the fabric is consistent with the linear speed of the guide roller 1, and slightly greater than the running speed of the middle part of the fabric. This creates a speed difference between the two sides of the fabric and the middle part of the fabric, effectively compensating for the weft slippage caused by the weight of the fabric sides and the weak cohesion with the guide roller 1, thereby preventing the occurrence of corner loss. If the fabric has already slightly lost its corners when it reaches the guide roller 1, the slight corner loss can also be corrected.

[0035] Furthermore, even if such fabric does not slip or slip between the middle part and the guide roller 1 when it is conveyed to the guide roller 1, it is still easy for it to slip when passing through the guide roller 1 (mainly because the middle part of the fabric fits better with the guide roller 1, while the sides do not fit well and the cohesion is poor). By pressing the sides of the fabric onto the guide roller 1 with the pressure rollers on both sides, it is possible to effectively prevent the fabric from slipping.

[0036] The first moving drive mechanism 3 can drive the pressure roller 2 to move to the side of the fabric, which can meet the needs of fabrics of different widths and provide a preventive effect.

[0037] Therefore, regardless of the fabric's weight, warp and weft density, and the weak cohesion between yarns, its state when passing through the guide roller 1 (whether the two sides are chipped or the middle is slipping), the fabric anti-chipping device in this embodiment can prevent chipping.

[0038] It should be noted that the guide roller 1 supports the running fabric, meaning that the fabric can be in line contact with the guide roller 1, or there can be a certain wrap angle.

[0039] In this embodiment, as Figure 1As shown, the fabric anti-drop corner device may further include a second moving drive mechanism 4, which is connected to the pressure roller 2 and is used to drive the pressure roller 2 to move toward and away from the guide roller 1. In this way, the pressure roller 2 can be pressed against or released from the fabric as needed, facilitating the movement of the pressure roller 2 along the axial direction of the guide roller 1.

[0040] In this embodiment, as Figure 1 As shown, the fabric anti-fall corner device may also include two mounting frames 9, each mounting frame 9 corresponding to a pressure roller 2. The pressure roller 2 is rotatably mounted on the corresponding mounting frame 9. The second moving drive mechanism 4 is connected to the mounting frame 9, and the first moving drive mechanism 3 is connected to the second moving drive mechanism 4. The first moving drive mechanism 3 and the second moving drive mechanism 4 can be linear modules, electric cylinders, pneumatic cylinders, and synchronous belt drives, etc., respectively.

[0041] In this embodiment, as Figure 1 As shown, in order to improve integration and facilitate use, the fabric anti-drop corner device may also include a frame 5, with the guide roller 1 rotatably mounted on the frame 5, and the first moving drive mechanism 3 also mounted on the frame 5.

[0042] In this embodiment, the guide roller 1 is a rubber-coated roller. This increases the friction between the fabric and the guide roller 1.

[0043] In this embodiment, the axial direction of the pressure roller 2 is parallel to the axial direction of the guide roller 1.

[0044] Example 2

[0045] Based on Example 1, such as Figure 2 , Figure 3 and Figure 4 As shown, the fabric anti-corner-dropping device also includes a pressure roller motor 8 corresponding to the pressure roller 2. The pressure roller motor 8 is connected to the pressure roller 2 to drive rotation.

[0046] Specifically, by setting up the pressure roller motor 8, the pressure roller 2 can be driven to rotate by the pressure roller motor 8, which can create a larger or more flexible speed difference between the two sides and the middle part of the fabric. This allows the speed difference to be adjusted as needed, thereby improving versatility and prevention effect.

[0047] For example, when a fabric with a high basis weight, low warp and weft density, and weak cohesion between yarns runs to the guide roller 1, the middle part does not slip between the guide roller 1 but the corner falls off. The active rotation of the pressure roller 2 can create a speed difference between the two sides and the middle part of the fabric, thereby preventing and correcting the corner falling off.

[0048] For example, if a fabric with a high basis weight, low warp and weft density, and weak cohesion between yarns does not slip or lose corners when it runs to the guide roller 1, the linear speed of the pressure roller 2 can be made to match the linear speed of the guide roller 1.

[0049] Example 3

[0050] Based on Embodiment 1 or Embodiment 2, the fabric anti-corner-dropping device further includes:

[0051] An edge detection mechanism is used to detect the position of the fabric's side edges.

[0052] The controller is connected to the edge detection mechanism and the first moving drive mechanism 3 respectively, and is used to control the first moving drive mechanism to drive the pressure roller 2 to move according to the side position detected by the edge detection mechanism.

[0053] In this way, the pressure roller 2 can automatically follow the edge and always press on the side of the fabric, eliminating the trouble of manual adjustment.

[0054] Example 4

[0055] A fabric treatment device includes the fabric anti-corner-dropping device described in Embodiment 1, Embodiment 2, or Embodiment 3. The fabric treatment device can be a weft straightening machine, a setting machine, a fabric compounding machine, etc.

[0056] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A fabric corner-preventing device, characterized in that, include: The guide roller (1), configured as a power roller, is used to support the fabric. Two rotatable pressure rollers (2), each pressure roller (2) is used to press one side of the fabric against the guide roller (1); Two first moving drive mechanisms (3) are provided, each first moving drive mechanism (3) corresponds to a pressure roller (2) and is connected to the corresponding pressure roller (2) to drive the corresponding pressure roller (2) to move axially along the guide roller (1).

2. The fabric anti-corner-dropping device according to claim 1, characterized in that, It also includes a pressure roller motor (8) corresponding to the pressure roller (2), the pressure roller motor (8) being connected to the pressure roller (2) to drive rotation.

3. The fabric anti-corner-dropping device according to claim 1, characterized in that, Also includes: An edge detection mechanism is used to detect the position of the fabric's side edges. The controller is connected to the edge detection mechanism and the first moving drive mechanism (3) respectively, and is used to control the first moving drive mechanism to drive the pressure roller (2) to move according to the side position detected by the edge detection mechanism.

4. The fabric anti-corner-dropping device according to claim 1, characterized in that, It also includes a second moving drive mechanism (4), which is connected to the pressure roller (2) and is used to drive the pressure roller (2) to move toward and away from the guide roller (1).

5. The fabric anti-corner-dropping device according to claim 4, characterized in that, It also includes two mounting brackets (9), each mounting bracket (9) corresponding to a pressure roller (2), the pressure roller (2) being rotatably mounted on the corresponding mounting bracket (9), the second moving drive mechanism (4) being connected to the mounting bracket (9), and the first moving drive mechanism (3) being connected to the second moving drive mechanism (4).

6. The fabric anti-corner-dropping device according to any one of claims 1-5, characterized in that, It also includes a frame (5), the guide roller (1) is rotatably mounted on the frame (5), and the first moving drive mechanism (3) is mounted on the frame (5).

7. The fabric anti-corner-dropping device according to any one of claims 1-5, characterized in that, The guide roller (1) is a rubber-coated roller.

8. The fabric anti-corner-dropping device according to any one of claims 1-5, characterized in that, The axial direction of the pressure roller (2) is parallel to the axial direction of the guide roller (1).

9. A fabric treatment device, characterized in that, Includes the fabric corner-preventing device as described in any one of claims 1-8.

10. The fabric processing equipment according to claim 9, characterized in that, Fabric processing equipment includes weft straightening machines, setting machines, or fabric compounding machines.

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