An anti-wind fabric production device and its production process

Abstract

The present invention discloses a production device and a production process for windproof fabrics, including a main frame, on which a support unit for supporting the fabric and a negative pressure device for detecting air permeability are provided. The negative pressure device is located in the middle of the support unit and below the fabric. The negative pressure unit includes a cavity, and air supply grooves are formed on the front and rear end walls of the cavity. The present invention provides a production device and a production process for windproof fabrics, which can continuously detect the air permeability of the fabric without damaging the integrity of the fabric, obtain the air permeability rate of the overall fabric, ensure the accuracy of the detection, and at the same time spray and mark the unqualified areas for subsequent tracing of the unqualified areas. In addition, during the air permeability detection, dust removal operation is carried out on the bottom surface, thereby reducing the dust rate of the fabric after winding.

Description

Technical Field

[0001] The present invention relates to the technical field of windproof fabric production, in particular to a windproof fabric production device and its production process. Background Art

[0002] A windproof fabric refers to a fabric with windproof effect. The mainstream in the market is to add a coating or film on the base fabric. Such windproof fabrics can achieve a zero air permeability rate. Another type has a high density itself, so the pinholes are extremely small, thus achieving windproof. Such windproof fabrics cannot achieve a zero air permeability rate;

[0003] When producing windproof fabrics by adding a coating or film on the base fabric, during the production process of such fabrics, the distribution of the coating on the whole roll of fabric will be uneven, that is, there are differences in the thickness of the coating. Especially when producing fabrics with a certain air permeability rate, the air permeability rate is low at the thick positions and high at the thin positions. In order to ensure the integrity of the whole roll of fabric, the existing fabric air permeability detection method is to cut some test samples at the head or tail of the whole roll of fabric for air permeability testing. The number of samples taken by such detection methods is small, and inaccurate phenomena may occur. Summary of the Invention

[0004] The present invention aims at the deficiencies in the prior art and provides a windproof fabric production device and its production process.

[0005] To solve the above technical problems, the present invention is solved through the following technical solutions: A windproof fabric production device includes a main frame. A support unit for supporting the fabric and a negative pressure device for detecting air permeability are provided on the main frame. The negative pressure device is located in the middle of the support unit and below the fabric. The negative pressure unit includes a cavity. Air supply grooves are opened on the front and rear end walls of the cavity. An adjusting plate is slidably arranged on the air supply grooves under guidance, and the adjusting plate is controlled by a control unit to move up and down. The upper end surface of the cavity contacts the back surface of the fabric, and the cavity is communicated with a negative pressure pipe. Thus, negative pressure is generated in the cavity, and air enters the cavity from the front surface of the fabric. A pressure unit is arranged on the upper end surface of the cavity. The control unit controls the up and down position of the adjusting plate according to the value of the pressure unit, adjusts the adsorption force of the cavity on the fabric, so that the fabric can continuously pass above the cavity, and at the same time keeps the value of the pressure unit within a certain range. By identifying the height value of the adjusting plate when the pressure unit is stable and comparing it with the comparison table in the control unit, the air permeability rate of the fabric is judged. By identifying the height change of the adjusting plate during continuous operation, the overall air permeability rate of the fabric is detected.

[0006] The beneficial effect is that on the basis of not damaging the integrity of the fabric, continuous air permeability detection is carried out on the fabric, and the air permeability rate of the whole fabric is obtained to ensure the accuracy of the detection.

[0007] In the above solution, preferably, the groove cavity is communicated with the dust removal box through a negative pressure pipe, so as to complete the continuous detection of the overall air permeability of the fabric while performing dust removal operations on the back of the fabric.

[0008] Its beneficial effect is that dust removal operations can be carried out while detecting the air permeability.

[0009] In the above solution, preferably, the support unit includes a first roller and a second roller, and the groove cavity is arranged between the first roller and the second roller.

[0010] In the above solution, preferably, a high-frequency vibration plate is arranged on the groove cavity. When the high-frequency vibration plate vibrates, it contacts the bottom surface of the fabric to shake off the dust on the back.

[0011] In the above solution, preferably, the groove cavity is evenly divided into multiple independent dust suction cavities, and a ventilation slot is provided at the front and rear end faces of each dust suction cavity. An adjustment plate is arranged on the ventilation slot, and a pressure unit is arranged on the upper end face of each dust suction cavity.

[0012] In the above solution, preferably, a spraying pipeline is arranged on each dust suction cavity. During continuous operation, when the height change of the adjustment plate exceeds the set value, the spraying pipeline sprays marking colorant on the bottom surface of the fabric.

[0013] In the above solution, preferably, the spraying pipeline is located in front of the pressure unit, that is, the fabric passes through the pressure unit first and then through the spraying pipeline.

[0014] In the above solution, preferably, a plurality of through holes are evenly arranged on the high-frequency vibration plate.

[0015] In the above solution, preferably, a winding roller is further arranged on the main frame, which is located in front of the support unit and lower than the support unit.

[0016] A production process of a windproof fabric production device:

[0017] S1: Set the device at the middle position of the moving fabric, and the fabric is supported by the support unit.

[0018] S2: The groove cavity generates negative pressure to suck and press the bottom surface of the fabric onto the upper end surface of the groove cavity. By controlling the up and down position of the adjustment plate, the pressure unit is in a numerical range.

[0019] S3: By identifying the height position of the adjustment plate, the air permeability of the fabric is deduced inversely.

[0020] S4: The fabric continues to pass through. The adjustment plate is continuously adjusted according to the pressure value change of the pressure unit. By identifying the height change range of the adjustment plate during the whole process, the air permeability change range of the overall fabric is judged.

[0021] The beneficial effects of the present invention are as follows: The present invention provides a production device and a production process for windproof fabrics, which can continuously detect the air permeability of the fabric without damaging the integrity of the fabric, obtain the air permeability rate of the overall fabric, ensure the accuracy of the detection, and at the same time spray and mark the unqualified areas, so that the unqualified areas can be traced subsequently. Moreover, during the air permeability detection, the dust removal operation of the bottom surface is carried out, thereby reducing the dust rate of the fabric after winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a rear schematic view of the present invention and other devices.

[0023] Figure 2 It is a schematic view of Embodiment 1 of the present invention.

[0024] Figure 3 It is a cross-sectional view of Embodiment 1 of the present invention.

[0025] Figure 4 It is a transverse cross-sectional view of the present invention.

[0026] Figure 5 It is a schematic view of the negative pressure unit of the present invention.

[0027] Figure 6 It is a partially enlarged view of the upper end surface position of the groove cavity of the present invention.

[0028] Figure 7 It is a distribution diagram of the dust suction cavity of the present invention.

[0029] Figure 8 It is a schematic view of Embodiment 2 of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The present invention will be further described in detail below in conjunction with the drawings and the specific embodiments: Embodiment 1

[0031] Refer to Figures 1-7 ,

[0032] A production device for windproof fabrics includes a main frame 1. A support unit 11 for stably supporting the fabric and a winding roller 12 for winding the fabric are arranged on the main frame 1. The support unit 11 includes a first roller 111 and a second roller 112. The first roller 111 and the second roller 112 are the same in size and height, and are used to support the fabric produced by other devices to form a flat plane. The winding roller 12 is located at the front end of the support unit 11 and is lower than the support unit 11. One end of the fabric is wound on the winding roller 12, so that the fabric on the support unit 11 is in a tensioned and flat state.

[0033] A negative pressure unit 2 is provided on the main frame 1. The negative pressure unit 2 includes a tank cavity 21 which is provided on the main frame 1 and located between the first roller 111 and the second roller 112. The upper end surface of the tank cavity 21 is flush with the highest points of the first roller 111 and the second roller 112, so that the fabric passes over the upper end surface of the tank cavity 21. The inside of the tank cavity 21 is evenly divided into a plurality of dust suction cavities 212. Each dust suction cavity 212 is connected to a dust removal box through a negative pressure pipe below, so that each dust suction cavity 212 can perform dust suction operations, making the tank cavity 21 act as a dust suction port to collect all the dust on the bottom surface of the fabric passing over the upper end surface into the dust removal box, thereby reducing the dust content of the fabric.

[0034] A high-frequency vibration plate 211 is also provided on the tank cavity 21. A plurality of through holes 2111 are evenly formed on the high-frequency vibration plate 211. The high-frequency vibration plate 211 performs high-frequency vibration during the operation of the equipment and contacts the bottom surface of the fabric passing from above during the high-frequency vibration process, thereby shaking off the dust on the bottom surface of the fabric and entering the dust suction cavity 212 through the through holes 2111 to perform efficient dust removal and cleaning operations on the passing fabric.

[0035] An air supply slot 22 is formed on the front and rear end surfaces of each dust suction cavity 212. An adjusting plate 23 is slidably arranged in the air supply slot 22 in the vertical direction. An electric telescopic member is arranged below the adjusting plate 23 and is controlled by the control unit of the equipment, so that the adjusting plate 23 moves up and down in the air supply slot 22.

[0036] A pressure unit 24 is provided on the upper end surface of the dust suction cavity 212. The fabric passes over the upper end surface of the dust suction cavity 212, and the bottom surface of the fabric presses against the pressure unit 24. At the same time, since the inside of the dust suction cavity 212 is in a negative pressure state, air enters the dust suction cavity 212 from the upper end surface of the fabric through the fabric, thereby pressing the fabric tightly against the pressure unit 24 and making there be a pressure value on the pressure unit 24.

[0037] When the negative pressure value in the dust suction cavity 212 is a constant value, the pressure values of fabrics with different ventilation rates pressing against the pressure unit 24 are different. The lower the ventilation rate, the larger the value; the higher the ventilation rate, the smaller the value. And the greater the pressure value, the greater the friction force between the bottom surface of the fabric and the upper end surface of the dust suction cavity 212, which will affect the tightness of the wound fabric. Therefore, it is necessary to maintain the pressure value within a numerical range. At this time, the adjusting plate 23 needs to change the amount of air entering the dust suction cavity 212 from the air supply slot 22 by changing its vertical position. In the initial state, the upper end surface of the adjusting plate 23 is flush with the upper end surface of the dust suction cavity 212. According to the different initial pressure values, the adjusting plate 23 is controlled to descend by different distances to maintain the pressure value within the set numerical range.

[0038] By identifying different distances of the lowering of the regulating plate 23, the air permeability of the fabric can be deduced inversely. At the same time, since the fabric continuously passes through the upper end of the dust suction cavity 212, by continuously identifying the height of the regulating plate 23, the change range of the air permeability of the fabric passing through within the width area of the dust suction cavity 212 can be obtained, and then the quality grade of the fabric can be determined.

[0039] The groove cavity 21 spans across the entire cross-section of the fabric, and a plurality of dust suction cavities 212 are uniformly arranged on the groove cavity 21. Then, by means of the regulating plate 23 within the dust suction cavity 212 integrated with the pressure degree, the change range of the air permeability of the overall fabric can be determined, and then the quality grade of the overall fabric can be determined.

[0040] A spraying pipeline 213 is arranged above each dust suction cavity 212, and the spraying pipeline 213 is located in front of the pressure unit 24, that is, the fabric first passes through the pressure unit 24 and then through the spraying pipeline 213. During the continuous operation, when the height change of the regulating plate 23 exceeds the set value, that is, exceeds the qualified numerical range of the fabric, the spraying pipeline 213 sprays a marking colorant on the bottom surface of the fabric to spray and mark the unqualified positions, and at the same time records in the control unit.

[0041] Spraying the marking colorant in the unqualified area can trace the unqualified area, that is, carry out repair or avoid this sprayed area during the subsequent use of the fabric.

[0042] Through this device, the overall air permeability detection can be completed during the dust suction process of the fabric. The air permeability detected in this way is the air permeability of the overall fabric, that is, a full inspection is carried out to ensure the evaluation of the quality and grade of the fabric. At the same time, during use, the unqualified area can be avoided, ensuring that the used positions are all qualified.

[0043] Its working principle or usage method is as follows:

[0044] Place the device behind the coating device. After the coating is completed, the processing of the entire fabric is completed. At this time, the fabric needs to be wound and collected.

[0045] One end of the fabric is wound on the winding roller 12, so that the fabric on the support unit 11 is in a tensioned and flat state. The winding roller 12 starts to rotate, thereby pulling the fabric to continuously pass through the support unit 11.

[0046] A groove cavity 21 is arranged between the first roller 111 and the second roller 112. The fabric passes through the upper end surface of the groove cavity 21. The groove cavity 21 is evenly divided into a plurality of dust suction cavities 212. Below each dust suction cavity 212, it is communicated with the dust removal box through a negative pressure pipe, so that each dust suction cavity 212 can carry out dust suction operation, making the groove cavity 21 serve as a dust suction port to collect all the dust on the bottom surface of the fabric passing through the upper end surface into the dust removal box, thereby reducing the dust content of the fabric.

[0047] During the dust removal operation, the negative pressure value in the dust suction chamber 212 is a constant value. Therefore, for fabrics with different ventilation rates, the pressure values pressing on the pressure unit 24 are different. The lower the ventilation rate, the larger the value; the higher the ventilation rate, the smaller the value. And the greater the pressure value, the greater the friction force between the bottom surface of the fabric and the upper end surface of the dust suction chamber 212, which in turn affects the tightness of the wound fabric. At the same time, the greater the friction force, the more the fabric will rub against the groove chamber 21, generating more dust, thus affecting the dust removal operation. Therefore, it is necessary to maintain the pressure value within a numerical range. At this time, the adjusting plate 23 needs to change its vertical position, thereby changing the amount of air entering the dust suction chamber 212 from the air supply groove 22. In the initial state, the upper end surface of the adjusting plate 23 is flush with the upper end surface of the dust suction chamber 212. According to the different initial pressure values, the adjusting plate 23 is controlled to descend by different distances to maintain the pressure value within the set numerical range.

[0048] By identifying the different distances by which the adjusting plate 23 descends, the ventilation rate of the fabric can be deduced. At the same time, since the fabric continuously passes above the dust suction chamber 212, by continuously identifying the height of the adjusting plate 23, the ventilation rate change range of the fabric passing through within the width area of the dust suction chamber 212 can be obtained, and then the quality grade of the fabric can be determined.

[0049] The groove chamber 21 spans the entire cross-section of the fabric, and a plurality of dust suction chambers 212 are uniformly arranged on the groove chamber 21. Therefore, by integrating the adjusting plates 23 in the dust suction chambers 212 with pressure readings, the ventilation rate change range of the overall fabric can be determined, and then the quality grade of the overall fabric can be determined.

[0050] A spraying pipeline 213 is provided above each dust suction chamber 212. During continuous operation, when the height change of the adjusting plate 23 exceeds the set value, that is, when it exceeds the qualified numerical range of the fabric, the spraying pipeline 213 sprays marking coloring material on the bottom surface of the fabric to mark the unqualified positions. At the same time, it is recorded in the control unit. Spraying the marking coloring material in the unqualified area can trace the unqualified area, that is, for repair or during subsequent fabric use, avoid this sprayed area.

[0051] Through this device, the overall air permeability detection can be completed during the dust suction process of the fabric. The air permeability detected in this way is the air permeability of the overall fabric, that is, a full inspection is carried out to ensure the quality and grade assessment of the fabric. At the same time, during use, the unqualified area can be avoided, ensuring that the positions used are all qualified. Embodiment 2

[0052] See Figures 4-8 ,

[0053] The difference from Embodiment 1 lies in the structure of the winding roller 12. In this embodiment, there is no winding roller 12 in the main frame 1, and the rest is the same. The device is placed in a continuously moving fabric path, and the highest point of the support unit 11 is higher than the height of the fabric path, so that the support position of the support unit 11 is at a high position in the fabric path and in a flat state, thereby performing dust removal operation and air permeability detection on the fabric.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A production device for windproof fabrics, characterized in that: It includes a main frame (1), on which a support unit (11) for supporting the fabric and a negative pressure device (2) for detecting air permeability are provided. The negative pressure device (2) is located in the middle of the support unit (11) and below the fabric. The negative pressure unit (2) includes a groove cavity (21). Air supply grooves (22) are formed on the front and rear end walls of the groove cavity (21), and an adjusting plate (23) is slidably arranged on the air supply grooves (22) in a guiding manner, and the adjusting plate (23) moves up and down under the control of a control unit. The upper end surface of the groove cavity (21) contacts the back surface of the fabric, and the groove cavity (21) is communicated with a negative pressure pipe. Thus, negative pressure is generated in the groove cavity (21), and air enters the groove cavity (21) from the front surface of the fabric. A pressure unit (24) is arranged on the upper end surface of the groove cavity (21). The control unit controls the up and down position of the adjusting plate (23) according to the value of the pressure unit (24), adjusts the adsorption force of the groove cavity (21) on the fabric, enables the fabric to continuously pass above the groove cavity (21), and at the same time maintains the pressure value of the pressure unit (24) within a set numerical range. By identifying the height value of the adjusting plate (23) when the pressure unit (24) is stable and comparing it with the comparison table in the control unit, the air permeability rate of the fabric is judged. By identifying the height change of the adjusting plate (23) during continuous operation, the overall air permeability rate of the fabric is detected.

2. The production equipment for a windproof fabric according to claim 1, characterized in that: The groove cavity (21) is communicated with a dust removal box through a negative pressure pipe, so that while dust removal operation is carried out on the back surface of the fabric, continuous detection of the overall air permeability rate of the fabric is completed.

3. The production equipment of a windproof fabric according to claim 1, characterized in that: The support unit (11) includes a first roller (111) and a second roller (112), and the groove cavity (21) is arranged between the first roller (111) and the second roller (112).

4. The production equipment for a windproof fabric according to claim 2, characterized in that: A high-frequency vibration plate (211) is arranged on the groove cavity (21). When vibrating, the high-frequency vibration plate (211) contacts the bottom surface of the fabric and is used to shake off the dust on the back surface.

5. The production equipment for a windproof fabric according to claim 1, characterized in that: The groove cavity (21) is evenly divided into a plurality of independent dust suction cavities (212). An air supply groove (22) is provided on the front and rear end faces of each dust suction cavity (212), an adjusting plate (23) is arranged on the air supply groove (22), and a pressure unit (24) is arranged on the upper end surface of each dust suction cavity (212).

6. The production equipment for a windproof fabric according to claim 5, characterized in that: A spraying pipeline (213) is arranged on each dust suction cavity (212). When the height change of the adjusting plate (23) during continuous operation exceeds the set value, the spraying pipeline (213) sprays marking coloring material on the bottom surface of the fabric.

7. The production equipment of a windproof fabric according to claim 6, characterized in that: The spraying pipeline (213) is located in front of the pressure unit (24), that is, the fabric first passes through the pressure unit (24) and then passes through the spraying pipeline (213).

8. The production equipment of a windproof fabric according to claim 4, characterized in that: A plurality of through holes (2111) are evenly formed on the high-frequency vibration plate (211).

9. The production equipment of a windproof fabric according to claim 1, characterized in that: A winding roller (12) is further arranged on the main frame (1), which is located in front of the support unit (11) and lower than the support unit (11).

10. A production process for fabric production using a windproof fabric production device according to any one of claims 1-8, characterized in that: S1: Set the device at the middle position of the moving fabric, and the fabric is supported by the support unit (11). S2: The slot cavity (21) generates negative pressure to suck and press the bottom surface of the fabric onto the upper end surface of the slot cavity (21). By controlling the vertical position of the adjustment plate (23), the pressure unit (24) is maintained within a numerical range. S3: By identifying the height position of the adjustment plate (23), the air permeability of the fabric is deduced inversely. S4: As the fabric continuously passes through, the adjustment plate (23) is continuously adjusted according to the change in the pressure value of the pressure unit (24). By identifying the height change range of the adjustment plate (23) throughout the process, the change range of the air permeability of the overall fabric is judged.

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