A process for weaving a shell

Abstract

The application relates to a shooting jacket weaving process and relates to the technical field of textiles, and comprises the following steps: step S1, putting warp yarn raw materials on a warp beam and performing warping through a warping machine; step S2, passing the prepared warp beam through manual or equipment to perform healding; step S3, installing weft yarn on a water jet device; step S4, performing weaving on the warp yarn and the weft yarn through a water jet loom; when step S4 does not perform water jetting, the height position of the nozzle is a standby position higher than a working position, when water jetting is started, the nozzle is controlled to move downward to a working position of weft insertion height, and when water jetting is ended, the nozzle is moved upward to the standby position. Through upward deviation of the nozzle in the height direction, downward deviation of the front end and the tail end of water jet flow is compensated, so that the contact of the front end and the tail end of water jet flow on the warp yarn is reduced, the phenomenon of broken spandex of the warp yarn in the weft insertion process is reduced, the wetting amount of the warp yarn is reduced, the fabric is more easily dried in the later period, and the problems of decoloration and quality reduction of the warp yarn are also improved.

Description

Technical Field

[0001] This application relates to the field of textile technology, and in particular to a weaving process for a windbreaker. Background Technology

[0002] The fabric of a waterproof jacket is manufactured through textiles. Currently, the weaving process for waterproof jacket fabrics includes warping, heddle threading, weaving, and inspection. Warping is done using a warping machine, heddle threading is done using a heddle threading machine, and weaving is done using a water jet loom. The water jet loom uses water as the weft insertion medium. The jet of water creates frictional traction on the weft yarn, causing the weft yarn on the fixed bobbin to be introduced into the shed.

[0003] A Chinese invention patent application with publication number CN110093707A discloses a water jet device for a water jet loom, including a weft insertion nozzle that uses water jets to insert the weft yarn, a weft insertion pump that pressurizes water to the weft insertion nozzle, a water storage tank that stores the water supplied to the weft insertion pump, and a suction pipe that supplies water from the water storage tank to the weft insertion pump. The water jet device for the water jet loom includes an auxiliary water supply mechanism that supplies water to the suction pipe when the weft insertion pump is pumping water.

[0004] The water jet device, also known as the water-jet weft insertion device, is the core component of a water-jet loom. The water jet device features a cam mechanism connected to the weft insertion pump, which actuates the pump. The cam rotates synchronously with the loom at a constant angular velocity. Through the coordinated action of the cam, cam follower, and helical spring, the cam rod rotates around its pivot axis. This rotation of the cam causes the arm of the cam rod to rotate away from the weft insertion pump, causing the piston to move against the force of the helical spring. The piston's forward stroke draws a constant amount of water from the storage tank into the storage chamber through the suction pipe. The piston's return stroke pressurizes the water in the storage chamber, opening the check valve on the nozzle side. The pressurized water from the storage chamber is then delivered to the weft insertion nozzle through the discharge pipe. The water from the weft insertion pump is then ejected from the nozzle, using this water jet to insert the weft yarn into the warp opening.

[0005] Regarding the aforementioned technologies, the inventors believe that: at the initial and final stages of water jetting, due to the water pressure not reaching its maximum value, significant air resistance at the water's front end, or lack of continued water propulsion at the rear end, the water initially jetting and at the end of the jetting tend to deflect downwards under gravity. This water impacts the warp yarns, and since some yarns are finer and spandex is more prone to breakage, the water jets can cause the yarns to become fuzzy. Therefore, the primary issue is how to reduce spandex breakage during weft insertion. Furthermore, for some warp yarns that have undergone soaking, sizing, and dyeing treatments before being fed into the loom, excessive water impact can make them difficult to dry later. Additionally, if the dyes or additives added during pretreatment are not completely dried, it can also lead to color fading or a decline in quality. Summary of the Invention

[0006] This application provides a weaving process for outdoor jackets that avoids the problem of water lines shifting downwards and impacting the warp yarns at the beginning and end of water spraying, reducing warp yarn breakage and helping to improve the quality of the fabric after weaving.

[0007] This application provides a weaving process for a windproof jacket, which adopts the following technical solution:

[0008] A manufacturing process for a waterproof jacket includes the following steps:

[0009] Step S1: Pour the warp yarn onto the warp beam and align it using a warping machine;

[0010] Step S2: The warp beams are threaded through heddles manually or using equipment;

[0011] Step S3: Install the weft yarn on the water jet device;

[0012] Step S4: Weave the warp and weft yarns using a water jet loom;

[0013] Step S5: Conduct quality inspection on the produced fabric;

[0014] In step S4, when water spraying is not performed, the nozzle is in a standby position at a height higher than the working position. When spraying begins, the nozzle is controlled to move down to the working position at the weft insertion height. When spraying ends, the nozzle is moved up to the standby position.

[0015] By adopting the above technical solution, the fabric weaving production is completed through steps S1-S5. By driving the nozzle to move up and down, the following is achieved: when water jetting is not in progress, the nozzle height is in a standby position higher than the working position; when spraying begins, the nozzle is controlled to move down to the working position at the weft insertion height; when spraying ends, the nozzle moves up to the standby position. Through this method, since the nozzle height is higher than the working position at the beginning of water spraying, even if the initial water jet deviates downwards, the upward deviation of the nozzle height compensates for the downward deviation of the water jet tip, thus reducing the contact between the water jet tip and the warp yarns, thereby reducing the breakage of spandex in the warp yarns during weft insertion. It also reduces the amount of wetting on the warp yarns, making the fabric easier to dry later and improving the problem of warp yarn fading or quality degradation. Similarly, at the end of spraying, the nozzle simultaneously begins to move upwards, or during the upward movement, causing the water jet to move upwards, thereby compensating for the downward deviation of the water jet tip and reducing the contact between the water jet tip and the warp yarns.

[0016] Optionally, the height difference between the nozzle in the standby position and the working position is 2-5 mm.

[0017] By adopting the above technical solution, the height difference is determined according to actual needs. Considering the allowable height error during yarn threading, it is necessary to ensure that the weft yarn can be correctly threaded next to the warp yarn.

[0018] Optionally, the up-and-down movement of the nozzle is driven by a drive structure, the drive structure including a drive plate for up-and-down movement, and the nozzle fixed to the drive plate; the water jet loom includes a frame, the frame having a guide rod fixed thereon, the guide rod passing through the drive plate and slidably connected to the drive plate.

[0019] By adopting the above technical solution, the drive plate drives the nozzle to move up and down, and the guide rod provides guidance for the movement of the drive plate.

[0020] Optionally, the drive structure includes a return spring fixedly connected to the frame and a drive cam rotatably connected to the frame. The drive cam is driven to rotate by a drive source, and the wheel surface of the drive cam and the return spring abut against the upper and lower surfaces of the drive plate, respectively.

[0021] By adopting the above technical solution, the elastic force of the return spring one always acts on the drive plate, ensuring that the top surface of the drive plate is always in close contact with the wheel surface of the drive cam. When the drive cam rotates, it causes the drive plate to move up and down reciprocatingly.

[0022] Optionally, the driving source is a jet cam, and a transmission shaft is fixed between the jet cam and the drive cam's rotating shaft.

[0023] By adopting the above technical solution, since the drive plate completes a back-and-forth vertical movement after the injection cam rotates once, the injection cam and the drive cam are linked together, thereby automatically realizing the lifting and lowering of the drive plate.

[0024] Optionally, the drive structure includes a sleeve fixed to the frame, the sleeve being located above the drive plate, the top end of the sleeve being closed, a plunger being slidably disposed inside the bottom end of the sleeve, the plunger being fixed to the drive plate, a second return spring being fixed to the bottom surface of the drive plate, the other end of the second return spring being fixed to the frame, a pressure guide pipe being connected to the outer wall of the sleeve, one end of the pressure guide pipe communicating with the inner cavity of the sleeve, and the other end of the pressure guide pipe communicating with the pressure chamber of the pressure pump.

[0025] By adopting the above technical solution, when water spraying begins, the water pressure in the pressure chamber of the pressure pump increases, and some water enters the inner cavity of the sleeve through the pressure guide pipe, thereby pushing the plunger downward, thus realizing the downward movement of the drive plate and nozzle when water spraying begins. When water spraying ends, the water pressure in the pressure chamber of the pressure pump decreases, and under the elastic force of the return spring two, the plunger moves upward, and some of the water in the inner cavity of the sleeve is squeezed back into the pressure chamber of the pressure pump, thus realizing the upward movement of the drive plate and nozzle when water spraying ends.

[0026] Optionally, the drive plate is fixed with a yarn guide and has two yarn clamping rollers that are rotatably arranged. The weft yarn passes through the yarn guide and between the two yarn clamping rollers in sequence and then enters the nozzle inlet.

[0027] By adopting the above technical solution, the weft yarn can enter the nozzle in a straight line through the guiding action of the yarn guide and the yarn clamping roller, reducing the angle error of the weft yarn entering the nozzle and stabilizing the movement of the weft yarn.

[0028] Optionally, the weft yarn originates from a fixed-length weft feeder, which is not located on the drive plate.

[0029] By adopting the above technical solution, the fixed-length weft feeder has a large self-weight. By not installing the fixed-length weft feeder on the drive plate, the weight of the drive plate and the objects on it can be reduced, thereby reducing inertia and making the up-and-down movement of the drive plate more effortless.

[0030] Optionally, the warp yarns include UV-resistant fibers, which are fibers with added UV-resistant additives.

[0031] By adopting the above technical solution and adding UV-resistant fibers to the warp yarns, the UV protection performance of the jacket can be improved.

[0032] In summary, this application includes at least one of the following beneficial technical effects:

[0033] 1. By offsetting the nozzle upwards in height to compensate for the downward offset of the water jet tip, the contact between the water jet tip and the warp yarns can be reduced, thereby reducing the breakage of spandex in the warp yarns during weft insertion. It also reduces the amount of moisture absorbed by the warp yarns, making the fabric easier to dry later and improving issues such as warp yarn fading or quality degradation.

[0034] 2. At the end of the spraying, the nozzle simultaneously begins to move upward or during the upward movement, causing the water jet to move upward, thereby compensating for the downward offset of the water jet end and reducing the contact between the water jet end and the warp yarn;

[0035] 3. By adding UV-resistant fibers to the warp yarns, the UV protection performance of the jacket can be improved. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of a water jet device in the prior art;

[0037] Figure 2 This is a schematic diagram of two positions of the nozzle in Embodiment 1;

[0038] Figure 3 This is a schematic diagram of the water jet device in Embodiment 1;

[0039] Figure 4This is a schematic diagram of the water jet device in Embodiment 2;

[0040] Figure 5 This is a schematic diagram of the water jet device in Embodiment 3.

[0041] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Jet cam; 21. Double arm; 22. Pressure pump; 3. Nozzle; 4. Drive plate; 11. Guide rod; 12. Fixed-length weft feeder; 41. Yarn guide; 42. Yarn clamping roller; 43. Return spring one; 5. Drive cam; 51. Drive shaft; 6. Sleeve; 61. Plunger; 62. Return spring two; 12. Threaded rod; 13. Limiting block; 63. Pressure guide tube. Detailed Implementation

[0042] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0043] To facilitate the distinction between the improvements of this application and the prior art, the water jet device of the prior art water jet loom is described below:

[0044] Reference Figure 1 The water jet loom drives the jet cam 2 to rotate through its internal structure. The jet cam 2 drives the piston in the pressure pump 22 to move back and forth through the double arm 21 and the connecting rod structure. The inlet and outlet of the pressure pump 22 are equipped with check valves. The pressure pump 22 draws water from the water tank and sprays it out from the nozzle 3. The sprayed water is a jet. The water jet drives the weft yarn to the position of the warp yarn for weaving.

[0045] Example 1:

[0046] A manufacturing process for a waterproof jacket includes the following steps:

[0047] Step S1: Pour the warp yarn onto the warp beam and align it using a warping machine;

[0048] Step S2: The warp beams are threaded through heddles manually or using equipment;

[0049] Step S3: Install the weft yarn on the water jet device;

[0050] Step S4: Weave the warp and weft yarns using a water jet loom;

[0051] Step S5: Conduct quality inspection on the produced fabric.

[0052] Reference Figure 2 In step S4, when water spraying is not performed, the height position of nozzle 3 is the standby position, which is higher than the working position. When spraying starts, nozzle 3 is controlled to move down to the working position at the weft insertion height. When spraying ends, nozzle 3 is moved up to the standby position.

[0053] The height difference between the nozzle 3 in the standby position and the working position is 2-5mm. This height difference is determined according to actual needs. Considering the allowable height error during yarn threading, it is necessary to ensure that the weft yarn can be correctly threaded next to the warp yarn.

[0054] The warp yarns contain UV-resistant fibers, which are fibers with added UV-resistant additives. Since rain jackets are worn outdoors, UV protection is one of the most important performance indicators. By incorporating UV-resistant fibers into the warp yarns, the UV protection performance of the rain jacket can be improved.

[0055] Reference Figure 3 The nozzle 3 moves up and down, driven by a drive structure, which includes a drive plate 4 that moves up and down, and the nozzle 3 is fixed to the drive plate 4. The water jet loom includes a frame 1, and a guide rod 11 is fixed to the frame 1. The guide rod 11 passes through the drive plate 4 and is slidably connected to the drive plate 4. At least two guide rods 11 are provided to improve the guiding effect on the drive plate 4.

[0056] The weft yarn originates from the fixed-length weft feeder 12, which is existing technology and is not located on the drive plate 4. The fixed-length weft feeder 12 has a relatively large weight; by not mounting it on the drive plate 4, the weight of the drive plate 4 and the objects on it can be reduced, thereby reducing inertia and making the up-and-down movement of the drive plate 4 easier. The fixed-length weft feeder 12 can be mounted on the frame 1.

[0057] A yarn guide 41 is fixed on the drive plate 4, and two yarn clamping rollers 42 are rotatably arranged. The weft yarn passes through the yarn guide 41 and the two yarn clamping rollers 42 in sequence and enters the inlet of the nozzle 3. Through the guiding action of the yarn guide 41 and the yarn clamping rollers 42, the weft yarn can enter the nozzle 3 in a straight line, reducing the angle error of the weft yarn entering the nozzle 3 and stabilizing the movement of the weft yarn.

[0058] The drive structure includes a return spring 43 fixedly connected to the frame 1 and a drive cam 5 rotatably connected to the frame 1. The drive cam 5 is driven to rotate by a drive source. The wheel surface of the drive cam 5 and the return spring 43 respectively abut against the upper and lower surfaces of the drive plate 4. The return spring 43 is a strong spring and is in a compressed state. The elastic force of the return spring 43 always acts on the drive plate 4, so that the top surface of the drive plate 4 is always in close contact with the wheel surface of the drive cam 5. When the drive cam 5 rotates, it causes the drive plate 4 to move up and down reciprocally.

[0059] In this embodiment, the driving source is a servo motor. The servo motor drives the drive cam 5 to rotate. Since the speed and start / stop time of the servo motor can be precisely controlled, the rotation timing and speed of the drive cam 5 can be accurately controlled so that the rotation of the drive cam 5 matches the water spraying timing of the nozzle 3. Thus, when water is not being sprayed, the height position of the nozzle 3 is a standby position higher than the working position. When spraying begins, the nozzle 3 is controlled to move down to the working position at the weft insertion height. When spraying ends, the nozzle 3 is moved up to the standby position.

[0060] The implementation principle of a weaving process for a windbreaker according to an embodiment of this application is as follows: the fabric weaving production is completed through steps S1-S5. The drive plate 4 is moved up and down by a drive source, thereby achieving the following: when water spraying is not performed, the height position of the nozzle 3 is a standby position higher than the working position; when spraying begins, the nozzle 3 is controlled to move down to the working position at the weft insertion height; when spraying ends, the nozzle 3 is moved up to the standby position.

[0061] By employing the above method, since the height of nozzle 3 is higher than the working position at the initial stage of water spraying, even if the water jet initially deviates downwards, the upward deviation of nozzle 3 compensates for the downward deviation of the water jet tip, thus reducing the contact between the water jet tip and the warp yarns. This reduces the breakage of spandex in the warp yarns during weft insertion. Furthermore, it reduces the amount of moisture absorbed by the warp yarns, making the fabric easier to dry later and improving issues such as warp yarn fading or quality degradation.

[0062] Similarly, at the end of the spraying, nozzle 3 simultaneously begins to move upward or during the upward movement, causing the water jet to move upward, thereby compensating for the downward offset of the water jet end and reducing the contact between the water jet end and the warp yarn.

[0063] Because the water jet has a high velocity, although its front and rear ends deflect downwards, the deflection angle is very small (within 2°), so the corresponding effect can be achieved by lifting the nozzle 3 as described above.

[0064] Since the warp yarn contains UV-resistant fibers, which are fibers with added UV-resistant additives, reducing the wetting effect of the UV-resistant fibers through the above method can reduce the redissolution or detachment of the undried UV additives from the yarn, thus ensuring product quality.

[0065] Example 2:

[0066] Reference Figure 4 The difference between this embodiment and embodiment one is that the driving source is the injection cam 2, and a transmission shaft 51 is fixed between the rotation shaft of the injection cam 2 and the drive cam 5.

[0067] The implementation principle of this embodiment is as follows: after the injection cam 2 rotates one revolution, the drive plate 4 also completes a back-and-forth up-and-down movement. Therefore, the injection cam 2 and the drive cam 5 are linked together, thereby automatically realizing the lifting and lowering of the drive plate 4. This structure does not require additional electrical control, so there will be no mechanical damage caused by servo motor malfunction or asynchrony. The operation is reliable and stable.

[0068] Example 3:

[0069] Reference Figure 5 The difference between this embodiment and Embodiment 1 is that the drive structure includes a sleeve 6 fixed to the frame 1. The sleeve 6 is located above the drive plate 4, with its upper end closed. A plunger 61 is slidably disposed inside the lower end of the sleeve 6, and the plunger 61 is fixed to the drive plate 4. A second return spring 62 is fixed to the bottom surface of the drive plate 4, and the other end of the second return spring 62 is fixed to the frame 1. The second return spring 62 is a strong spring and is in a compressed state. The elastic force of the second return spring 62 always acts on the drive plate 4.

[0070] The frame 1 is fixed with two threaded rods 12, which are located on the upper and lower sides of the drive plate 4, respectively. Limiting blocks 13 are threadedly connected to the threaded rods 12. The two limiting blocks 13 limit the extreme positions of the drive plate 4 that can move up and down, preventing the drive plate 4 from moving excessively. Moreover, by rotating the limiting blocks 13, the height of the limiting blocks 13 can be adjusted, thereby fine-tuning the range of vertical movement of the drive plate 4.

[0071] A pressure-guiding pipe 63 is connected to the outer wall of the sleeve 6. One end of the pressure-guiding pipe 63 communicates with the inner cavity of the sleeve 6, and the other end of the pressure-guiding pipe 63 communicates with the pressure chamber of the pressure pump 22. It should be noted that both the pressure-guiding pipe 63 and the pressure chamber of the pressure pump 22 are filled with water.

[0072] The implementation principle of this embodiment is as follows: When water spraying begins, the water pressure in the pressure chamber of the pressure pump 22 increases, and some water enters the inner cavity of the sleeve 6 through the pressure guide pipe 63, thereby pushing the plunger 61 downward, thus realizing the downward movement of the drive plate 4 and the nozzle 3 when water spraying begins. When water spraying ends, the water pressure in the pressure chamber of the pressure pump 22 decreases, and under the elastic force of the return spring 62, the plunger 61 moves upward, and some of the water in the inner cavity of the sleeve 6 is squeezed back into the pressure chamber of the pressure pump 22, thus realizing the upward movement of the drive plate 4 and the nozzle 3 when water spraying ends. The structure of this embodiment can also automatically realize the raising and lowering of the drive plate 4, and no additional electrical control is required.

[0073] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A weaving process for a windproof jacket, characterized in that: Includes the following steps: Step S1: Pour the warp yarn onto the warp beam and align it using a warping machine; Step S2: The warp beams are threaded through heddles manually or using equipment; Step S3: Install the weft yarn on the water jet device; Step S4: Weave the warp and weft yarns using a water jet loom; Step S5: Conduct quality inspection on the produced fabric; In step S4, when water jetting is not performed, the nozzle (3) is in a standby position at a height higher than the working position. When spraying begins, the nozzle (3) is controlled to move down to the working position at the weft insertion height. When spraying ends, the nozzle (3) is moved up to the standby position. The height difference between the standby position and the working position of the nozzle (3) is 2-5mm. The up-and-down movement of the nozzle (3) is driven by a drive structure, which includes a drive plate (4) for up-and-down movement. The nozzle (3) is fixed on the drive plate (4). The water jet loom includes a frame (1). The frame (1) is fixed. A guide rod (11) is fixed, which passes through the drive plate (4) and is slidably connected to the drive plate (4); the drive structure includes a sleeve (6) fixed to the frame (1), the sleeve (6) being located above the drive plate (4), the top end of the sleeve (6) being closed, and a plunger being slidably disposed inside the bottom end of the sleeve (6), the plunger being fixed to the drive plate (4), a second return spring (62) being fixed to the bottom surface of the drive plate (4), the other end of the second return spring (62) being fixed to the frame (1), and a pressure guide tube (63) being connected to the outer wall of the sleeve (6). One end of the pressure guide tube (63) is connected to the inner cavity of the sleeve (6), and the other end of the pressure guide tube (63) is connected to the pressure chamber of the pressure pump (22). When water spraying begins, the water pressure in the pressure chamber of the pressure pump (22) increases, and some water enters the inner cavity of the sleeve (6) through the pressure guide tube (63), thereby pushing the plunger (61) downward, thus realizing the downward movement of the drive plate (4) and the nozzle (3) when water spraying begins. When water spraying ends, the water pressure in the pressure chamber of the pressure pump (22) decreases, and under the elastic force of the second return spring (62), the plunger (61) moves upward, and the sleeve (6) moves downward. The water in the inner cavity is partially squeezed back into the pressure chamber of the pressure pump (22), thereby realizing the upward movement of the drive plate (4) and the nozzle (3) when the water spraying ends; the frame (1) is fixed with two threaded rods, which are located on the upper and lower sides of the drive plate (4) respectively, and the threaded rods are threadedly connected to limit blocks (13); the limit position of the drive plate (4) can be limited by the two limit blocks (13) to avoid the drive plate (4) from moving too much, and the height of the limit block (13) can be adjusted by rotating the limit block (13), thereby fine-tuning the range of the drive plate (4) that can move up and down.

2. The weaving process for a windbreaker according to claim 1, characterized in that: The drive plate (4) is fixed with a yarn guide (41) and has two yarn clamping rollers (42) rotatably arranged. The weft yarn passes through the yarn guide (41) and the two yarn clamping rollers (42) in sequence and then enters the inlet of the nozzle (3).

3. The weaving process for a windbreaker according to claim 2, characterized in that: The weft yarn originates from a fixed-length weft feeder, which is not located on the drive plate (4).

4. The weaving process for a windbreaker according to claim 1, characterized in that: The warp yarns contain UV-resistant fibers, which are fibers with added UV-resistant additives.

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