Passive micro-tension control system

Abstract

The utility model discloses a passive micro-tension control system which comprises a feeding support, a material receiving hopper is arranged on the feeding support, a weighing sensor is arranged between the lower portion of the material receiving hopper and the feeding support, the inner wall of the material receiving hopper is smooth, and fabric enters the material receiving hopper. The weight of the fabric in the receiving hopper is detected in real time through the weighing sensor, tension control over the ultrahigh-elasticity fabric is achieved, and the printing quality of the fabric is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of digital printing equipment, and more specifically relates to a passive micro-tension control system. Background Art

[0002] In digital printing of fabrics, the fabrics need to be tensioned to a certain extent. However, for highly elastic fabrics, even a little tension will cause the fabric to be stretched and deformed, thereby affecting the surface printing quality. Therefore, for highly elastic fabrics, an additional tension mechanism is generally not used. Instead, the fabric is allowed to droop naturally before being conveyed to the printing mechanism to eliminate the tension on the fabric. The height of the bottom of the drooping fabric is used to judge the tension of the fabric during conveyance. The existing patent with patent number CN219173765U discloses a tension-free, fully flexible edge-to-edge cloth placement system.

[0003] However, when the cloth-laying system in the above-mentioned existing patent is laying and conveying ultra-high elastic fabrics (such as spandex fabrics), the stretching caused by its own sagging will still have a certain impact on the fabric. At the same time, the fabric will also be easily stretched when it is pulled out from the storage rack.

[0004] Therefore, the tension system needs to be further improved for the transportation of ultra-high elastic fabrics. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the utility model provides a passive micro-tension control system to achieve tension control of ultra-high elastic fabrics and ensure the printing quality of the fabrics.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a passive micro-tension control system, comprising a feeding bracket, a receiving hopper is provided on the feeding bracket, a weighing sensor is provided between the bottom of the receiving hopper and the feeding bracket, and the inner wall of the receiving hopper is smooth.

[0007] Furthermore, the receiving hopper includes an arc-shaped hopper portion and baffles located on both sides of the hopper portion, the baffles on both sides form an inclined opening, wherein the width of the baffle on one side is greater than that of the baffle on the other side, the side with the larger baffle width is the feed side, and the side with the smaller baffle width is the discharge side.

[0008] Furthermore, end plates are provided at both ends of the bucket, and a plurality of weight-reducing holes are provided on the end plates.

[0009] Furthermore, a guide roller is provided on the feeding bracket, and the guide roller is located above the feeding side.

[0010] Furthermore, two wire-separating rollers and a deviation-correcting roller are provided on the feeding bracket, and the wire-separating roller and the deviation-correcting roller are both located above the guide roller. The fabric crosses around the two wire-separating rollers and then around the deviation-correcting roller.

[0011] Furthermore, a support frame is provided below the receiving hopper, and the support frame is connected to a weighing sensor.

[0012] Compared with the prior art, the beneficial effect of the present invention is that a certain weight of the conveyed fabric is first stored in the receiving hopper. During printing, the fabric enters from the feed side of the receiving hopper while being taken out from the discharge side of the receiving hopper, and the weight of the fabric in the receiving hopper is always maintained within the setting range of the weighing sensor. Moreover, any change in the tension on the fabric on either the feed side or the discharge side will affect the weight of the fabric in the receiving hopper, thereby changing the conveying speed of the fabric in the entire fabric conveying mechanism through the weighing sensor, and realizing tension control of ultra-high elastic fabric. In addition, the fabric after entering the receiving hopper can release the tension on the fabric like natural drooping, thereby ensuring the printing quality of the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of the passive micro-tension control system of the utility model;

[0014] Figure 2 This is a schematic structural diagram of the material receiving hopper in the passive micro-tension control system of the utility model.

[0015] Reference numerals: feeding bracket 1; receiving hopper 2; weighing sensor 3; hopper portion 4; baffle 5; end plate 6; weight-reducing hole 7; guide roller 8; wire separation roller 9; deviation correction roller 10; support frame 11. DETAILED DESCRIPTION

[0016] In the description of the present invention, it should be noted that, for directional words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Therefore, the terms "first" and "second" may explicitly or implicitly refer to one or more of these features. In the description of this utility model, "several" and "a number" mean two or more, unless otherwise specifically defined.

[0018] Reference Figure 1 and Figure 2 The utility model is further described.

[0019] A passive micro-tension control system includes a feeding bracket 1, a receiving hopper 2 is provided on the feeding bracket 1, a weighing sensor 3 is provided below the receiving hopper 2 and between the feeding bracket 1, and the inner wall of the receiving hopper 2 is smooth.

[0020] like Figure 2 As shown, in this example, preferably, the receiving hopper 2 includes an arc-shaped hopper portion 4 and baffles 5 located on both sides of the hopper portion 4, and the baffles 5 on both sides form an inclined opening, wherein the width of the baffle 5 on one side is greater than the baffle 5 on the other side, and the side with the larger width of the baffle 5 is the feed side, and the side with the smaller width of the baffle 5 is the discharge side.

[0021] like Figure 1 and Figure 2 As shown, the range of the fabric weight measured by the weighing sensor 3 is first set. When the fabric is conveyed, the fabric enters the receiving hopper 2 from the feed side of the receiving hopper 2, and a certain weight of fabric is first stored in the receiving hopper 2. Then the fabric ends are taken out from the discharge side and sent to the printing mechanism. When printing, the fabric enters from the feed side of the receiving hopper 2 while being taken out from the discharge side of the receiving hopper 2, and the weight of the fabric in the receiving hopper 2 is always kept within the set range of the weighing sensor 3. Regardless of the tension change on the fabric on the feed side or the discharge side, it will affect the weight of the fabric in the receiving hopper 2, thereby changing the conveying speed of the fabric in the entire fabric conveying mechanism through the weighing sensor 3, and realizing tension control of ultra-high elastic fabrics. In addition, the fabric after entering the receiving hopper 2 can release the tension on the fabric like natural drooping, thereby ensuring the printing quality of the fabric.

[0022] like Figure 2 As shown, in this embodiment, preferably, end plates 6 are provided at both ends of the bucket portion 4 , and a plurality of weight-reducing holes 7 are provided on the end plates 6 .

[0023] like Figure 1 As shown, in this example, preferably, the feeding bracket 1 is provided with a guide roller 8, and the guide roller 8 is located above the feeding side.

[0024] like Figure 1As shown, in this example, preferably, two wire-separating rollers 9 and a deviation-correcting roller 10 are provided on the feeding bracket 1, and the wire-separating rollers 9 and the deviation-correcting rollers 10 are both located above the guide roller 8. The fabric crosses around the two wire-separating rollers 9 and then around the deviation-correcting roller 10. The fabric is flattened by the wire-separating rollers 9, and the flattened fabric is corrected by the deviation-correcting roller 10.

[0025] like Figure 2 As shown, in this example, preferably, a support frame 11 is provided below the receiving hopper 2 , and the support frame 11 is connected to the weighing sensor 3 .

[0026] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A passive micro-tension control system, characterized by: It includes a feeding bracket, a receiving hopper is provided on the feeding bracket, a weighing sensor is provided between the lower part of the receiving hopper and the feeding bracket, and the inner wall of the receiving hopper is smooth; The receiving hopper includes an arc-shaped hopper portion and baffles located on both sides of the hopper portion, the baffles on both sides form an inclined opening, wherein the width of the baffle on one side is greater than that of the baffle on the other side, the side with the larger baffle width is the feed side, and the side with the smaller baffle width is the discharge side.

2. The passive micro-tension control system according to claim 1, characterized in that: End plates are provided at both ends of the bucket, and a plurality of weight-reducing holes are provided on the end plates.

3. The passive micro-tension control system according to claim 1, characterized in that: The feeding bracket is provided with a guide roller, and the guide roller is located above the feeding side.

4. The passive micro-tension control system according to claim 3, characterized in that: The feeding bracket is provided with two wire-separating rollers and a deviation-correcting roller, and the wire-separating roller and the deviation-correcting roller are both located above the guide roller. The fabric crosses around the two wire-separating rollers and then around the deviation-correcting roller.

5. The passive micro-tension control system according to claim 1, characterized in that: A support frame is provided below the receiving hopper, and the support frame is connected to a weighing sensor.

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