Production device for light and thin double-sided cashmere fabric

Abstract

The invention relates to a production device for light and thin double-sided cashmere fabric. The production device is used for carrying out simultaneous double-sided raising operation on the light and thin double-sided cashmere fabric, and comprises a base plate, a plurality of needle teeth arranged on the plane of the base plate and distributed in an array, burrs arranged at the tips of the needle teeth and used for generating fuzz on the surface of the fabric, and a driving mechanism used for driving the base plate to do reciprocating motion; according to the double-sided raising device, the needle teeth vertically pass through at a time, and the downward stroke and the upward stroke act on the upper surface and the lower surface of the fabric respectively, so that double-sided raising is realized in a real sense, and the tension problem and efficiency loss caused by turning are thoroughly avoided.

Description

Technical Field

[0001] This invention belongs to the field of textile machinery technology, specifically relating to a production device for lightweight double-sided cashmere fabric. Background Technology

[0002] Traditional production of cashmere double-sided fleece fabric relies on rotary napping machines. This equipment uses high-speed rotating napping rollers, utilizing the speed difference between the surface steel needles and the fabric to pull fibers from the yarn in a "hooking" motion, forming the nap. To achieve double-sided napping, existing technologies mainly employ two methods: one is to use a single-sided napping machine for two separate processes, which is inefficient and easily results in uneven nap on both sides (uneven nap); the other is to use a continuous double-sided napping machine, where the fabric passes through both sides in a single pass, improving efficiency but still relying on the basic principle of rotary scraping.

[0003] The existing technology has the following inherent defects: The rigidity of the process makes it impossible to achieve precise local control: Rotary napping is a whole-area treatment in the width direction of the fabric, making it difficult to achieve differentiated napping for complex patterns, textures or functional zones on the fabric.

[0004] Not friendly to thin fabrics: The continuous tangential tension and frictional heat generated by rotation pose a risk of tensile and thermal damage to delicate and thin fibers such as cashmere, and can easily produce pilling streaks that are difficult to eliminate.

[0005] Double-sided processing relies on turning: Even the most advanced continuous processing equipment requires physically turning the fabric inside the machine, which increases the complexity of tension control and the risk of fabric damage.

[0006] Therefore, there is an urgent need in the field for a new type of pile-raising device that can gently, precisely, programmably process lightweight cashmere fabrics and complete double-sided processing in one go. Summary of the Invention

[0007] The purpose of this invention is to provide a production apparatus for lightweight double-sided cashmere fabric in order to solve the problems mentioned in the background art.

[0008] The present invention achieves the above objectives through the following technical solutions: A production apparatus for lightweight cashmere double-sided fleece fabric, used to perform simultaneous double-sided napping operation on lightweight cashmere double-sided fleece fabric, includes a substrate, a plurality of needles arranged in an array on the plane of the substrate, burrs at the tips of the needles for generating nap on the fabric surface, and a drive mechanism for driving the substrate to reciprocate.

[0009] Preferably, the drive mechanism includes a mounting plate, a reducer fixedly mounted on the mounting plate, a drive motor mounted on the reducer, a wheel connected to the output shaft of the reducer, and a crank eccentrically mounted on the wheel. The end of the crank away from the wheel is rotatably mounted on the base plate.

[0010] Preferably, a plurality of guide rods are fixedly provided on the mounting plate, and a plurality of limiting holes corresponding to the guide rods are provided on the substrate. The guide rods pass through the limiting holes and are used to guide the movement path of the substrate.

[0011] Preferably, the substrate has several through holes, and a straw is fixedly installed at each through hole. The straw is equipped with a solenoid valve and is filled with fluid. The needle teeth are movably installed inside the through hole; The end of the straw away from the needle teeth is connected to a control component for controlling the direction of fluid movement. The control component controls the position of the needle teeth relative to the substrate by controlling the flow of fluid, so as to control whether the needle teeth participate in the napping operation of the fabric.

[0012] Preferably, a telescopic member is provided between the substrate and the mounting plate, and a plurality of rods passing through the substrate and parallel to the needle teeth are fixedly provided on the mounting plate. The rods have a hollow structure, and their cavities are connected to the telescopic member through an air pipe. The rod has an opening at the end away from the substrate, and a first one-way valve is provided at the opening. The first one-way valve controls the gas to enter the rod. The rod is provided with an air outlet, and a second one-way valve is provided at the air outlet. The second one-way valve is used to control the gas flow out of the rod.

[0013] Preferably, the vent is located on the side wall of the rod and at the end closest to the opening.

[0014] Preferably, the device further includes two conveying components, each conveying component including two conveying rollers in contact with each other, and one of the conveying rollers in each conveying component being driven by a conveying motor.

[0015] Preferably, the conveying motor stops working when the substrate moves downward, so that the fabric is stopped being conveyed.

[0016] The beneficial effects of this invention are as follows: This invention achieves true simultaneous double-sided napping by using a needle that travels vertically through the fabric in one pass, with the downward and upward strokes acting on the upper and lower surfaces respectively. This completely avoids the tension problems and efficiency losses caused by flipping the fabric.

[0017] This invention, through an independently programmable and controllable needle matrix, can achieve localized napping of any complex pattern, texture, or functional zone, providing unprecedented flexibility and creativity for fabric design and realizing a leap from homogenization to pixelated design.

[0018] This invention uses a vertical reciprocating puncture-lift mechanism to replace high-speed scraping, combined with a step-by-step intermittent operation and a fabric stabilization mechanism, so that the needles can act on the fabric synchronously, at the same speed and depth. The force is vertically controllable, which greatly reduces the lateral stretching damage and frictional heat damage to the thin cashmere fabric, and can obtain an extremely uniform cashmere surface.

[0019] This invention is particularly suitable for the development and production of small-batch, high-value-added, and personalized cashmere products, such as artistic scarves and partial decorations on custom-made garments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the second perspective structure of the present invention; Figure 4 This is a schematic diagram illustrating the working principle of the present invention.

[0021] In the diagram: 1. Base plate; 2. Needle teeth; 3. Burr; 4. Mounting plate; 5. Reducer; 6. Drive motor; 7. Rotary wheel; 8. Crank; 9. Guide rod; 10. Limiting hole; 11. Suction tube; 12. Telescopic component; 13. Rod; 14. Opening; 15. Air outlet; 16. Conveyor roller; a. Fabric. Detailed Implementation

[0022] The present application will now be described in further detail. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Example 1 like Figure 1-4 As shown, a production apparatus for lightweight cashmere double-sided fleece fabric is used to perform simultaneous double-sided napping operation on lightweight cashmere double-sided fleece fabric a. It includes a substrate 1, a plurality of needle teeth 2 arranged in an array on the plane of the substrate 1, burrs 3 at the tips of the needle teeth 2 for generating nap on the surface of fabric a, and a drive mechanism for driving the substrate 1 to reciprocate.

[0024] It should be noted that the device is placed directly above fabric a, and fabric a is wound up by a winding device (existing technology), causing fabric a to move relative to the device. While fabric a moves, the drive mechanism drives the base plate 1 to move up and down reciprocally. When the base plate 1 moves downwards, it drives the needle teeth 2 to insert into fabric a and pass downwards through fabric a. The burrs 3 on the needle teeth 2 hook the ends of the fibers in the yarn of fabric a and gently, partially pull them out of the yarn, forming the nap on the lower surface.

[0025] When the substrate 1 moves upward, it returns to the top of the fabric a, and the burrs 3 on the needle teeth 2 form nap on the upper surface. One up-and-down reciprocating motion can perform a double-sided napping operation without turning the fabric a over.

[0026] In this embodiment, the drive mechanism includes a mounting plate 4, a reducer 5 fixedly mounted on the mounting plate 4, a drive motor 6 mounted on the reducer 5, a rotating wheel 7 connected to the output shaft of the reducer 5, and a crank 8 eccentrically mounted on the rotating wheel 7. After the mounting plate 4 is fixedly installed, the device can be lifted.

[0027] The crank 8 is rotatably mounted on the base plate 1 at the end away from the rotating wheel 7. When the rotating wheel 7 rotates, it drives the crank 8 to move, and the crank 8 drives the base plate 1 to move up and down reciprocally.

[0028] To ensure that the substrate 1 does not shift, a number of guide rods 9 are fixedly provided on the mounting plate 4, and a number of limiting holes 10 corresponding to the guide rods 9 are provided on the substrate 1. The guide rods 9 pass through the limiting holes 10 and are used to guide the movement path of the substrate 1.

[0029] Example 2 Based on Embodiment 1, the substrate 1 in this embodiment has several through holes, and a suction tube 11 is fixedly installed at each through hole. The suction tube 11 is equipped with a solenoid valve and is filled with fluid. The fluid can be hydraulic oil, which is incompressible and has good sensitivity.

[0030] The needle tooth 2 is movably installed inside the through hole.

[0031] The end of the suction tube 11 furthest from the needle teeth 2 is connected to a control component for controlling the direction of fluid movement. The control component controls the position of the needle teeth 2 relative to the substrate 1 by controlling the flow of fluid, thereby controlling whether the needle teeth 2 participate in the napping operation of the fabric a. The moving component can be a hydraulic station, which supplies oil according to the requirements of the drive device and controls the direction, pressure, and flow rate of the oil.

[0032] It should be noted that when partial napping of fabric a is required, different solenoid valves (PLC) are controlled to open different suction tubes 11. A hydraulic station then controls the fluid within each suction tube 11, driving the piston to move the needle teeth 2. That is, the needle teeth 2 move upwards relative to the other needle teeth 2. During the napping operation, the needle teeth 2 do not contact the fabric a, thus forming a pattern on the surface of fabric a, similar to "embroidery" or "flocking." This decorative napping of specific parts of the garment allows for personalized customization.

[0033] As fabric a moves, different needle teeth 2 disengage from fabric a, thus creating irregular and unique patterns. Through the contrast between the napped and non-naveled surfaces, visual effects of light and shadow, luster, and texture are created, as well as tactile differences between soft and crisp, matte and smooth, greatly enhancing the artistic expression and added value of fabric a.

[0034] Preferably, the top of the needle tooth 2 is provided with a piston, which can move smoothly in the through hole, and a boss is provided below the through hole to limit the piston and prevent the piston from falling out.

[0035] Example 3 Because the burrs 3 exert a certain pulling effect on the fabric a, when the needle teeth 2 pass through the fabric a, the fabric a will be synchronously moved and deformed, thus affecting the napping effect of the burrs 3 on the fabric a. To solve this problem, in this embodiment, a telescopic member 12 is provided between the base plate 1 and the mounting plate 4. Several rods 13 that pass through the base plate 1 and are parallel to the needle teeth 2 are fixed on the mounting plate 4. The rods 13 have a hollow structure, and their cavities are connected to the telescopic member 12 through air pipes. Preferably, the telescopic member 12 is a hydraulic rod with a sealed structure and can be extended and retracted for a long time and multiple times.

[0036] The end of the rod 13 away from the substrate 1 has an opening 14, and a first check valve is provided at the opening 14. The first check valve controls the gas to enter the rod 13.

[0037] The rod 13 is provided with an air outlet 15, and a second one-way valve is provided at the air outlet 15. The second one-way valve is used to control the flow of gas out of the rod 13.

[0038] It should be noted that the length of the rod 13 is set to be exactly in contact with the upper surface of the fabric a. When the base plate 1 moves downward, the telescopic member 12 is stretched, the air pressure inside the telescopic member 12 decreases, and air is drawn in through the opening 14. While the opening 14 is drawing in air, it also holds the fabric a in place. The suction force of the rod 13 on the fabric a can counteract the downward friction and pulling force of the burr 3 on the fabric a, so the fabric a will not move downward.

[0039] When the substrate 1 moves upward, the rod 13 can limit the fabric a. The downward pressure of the rod 13 on the fabric a can counteract the upward friction and pulling force of the burr 3 on the fabric a, so the fabric a will not move upward. When the telescopic member 12 shortens, the gas is discharged from the vent 15 without affecting the subsequent air intake.

[0040] Preferably, the vent 15 is located on the side wall of the rod 13, and at the end closest to the opening 14. The gas ejected from the vent 15 is directed at the burr 3, blowing away impurities and fibers adhering to its surface as the burr 3 moves, thereby ensuring the cleanliness and working effect of the burr 3.

[0041] Example 4 Furthermore, the device also includes two conveying assemblies, each of which includes two conveying rollers 16 in contact with each other, and one of the conveying rollers 16 in each conveying assembly is driven by a conveying motor.

[0042] The conveyor motor stops working when the substrate 1 moves downward, so that the fabric a stops being conveyed.

[0043] It should be noted that when the substrate 1 moves the needle teeth 2 downwards, they will insert into the fabric a. If the fabric a is moving laterally, it will be pulled, which may cause the napping to fail or result in poor quality. By intermittently stopping the conveyor motor, the fabric a stops moving after the needle teeth 2 are inserted, so that the burr 3 moves vertically relative to the fabric a. The burr 3 can act on the fabric a synchronously, at the same speed and depth, which theoretically can achieve an absolutely uniform napping force across the entire width.

[0044] After the needle teeth 2 are removed from the fabric a, the conveyor motor drives the fabric a to move laterally, thereby achieving step-by-step napping of the fabric a.

[0045] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A device for producing a light weight double faced pile fabric of cashmere, for simultaneously double faced raising operation of a light weight double faced pile fabric of cashmere, characterized in that, The device comprises a substrate (1), a plurality of needle teeth (2) arranged in an array on the plane of the substrate (1), a burr (3) arranged at the tip of the needle tooth (2) for generating fluff on the surface of the fabric, and a driving mechanism for driving the substrate (1) to move back and forth.

2. A device for producing a lightweight double-faced pile cashmere fabric according to claim 1, characterized in that, The driving mechanism comprises a mounting plate (4), a speed reducer (5) fixedly arranged on the mounting plate (4), a driving motor (6) arranged on the speed reducer (5), a rotating wheel (7) connected with the output shaft of the speed reducer (5), and a crank (8) eccentrically arranged on the rotating wheel (7). The end of the crank (8) away from the rotating wheel (7) is rotatably mounted on the substrate (1).

3. A device for producing a lightweight double-faced pile cashmere fabric according to claim 2, characterized in that, A plurality of guide rods (9) are fixedly arranged on the mounting plate (4), and a plurality of limiting holes (10) corresponding to the guide rods (9) are arranged on the substrate (1), the guide rods (9) pass through the limiting holes (10), and the guide rods (9) are used for guiding the movement path of the substrate (1).

4. A device for producing a lightweight double-faced pile cashmere fabric according to claim 3, characterized in that, A plurality of through holes are arranged on the substrate (1), and a suction pipe (11) is fixedly mounted at the through hole, an electromagnetic valve is arranged in the suction pipe (11), and the suction pipe (11) is filled with fluid. The needle tooth (2) is movably mounted in the through hole. The end of the suction pipe (11) away from the needle tooth (2) is connected with a control member for controlling the moving direction of the fluid, the control member controls the position of the needle tooth (2) relative to the substrate (1) by controlling the flow of the fluid, so as to control whether the needle tooth (2) participates in the fabric raising operation.

5. A device for producing a lightweight double-faced pile cashmere fabric according to claim 4, characterized in that, A telescopic member (12) is arranged between the substrate (1) and the mounting plate (4), a plurality of rod members (13) passing through the substrate (1) and parallel to the needle tooth (2) are fixedly arranged on the mounting plate (4), the rod member (13) is a hollow structure, and the hollow cavity of the rod member (13) is in communication with the telescopic member (12) through an air pipe. An opening (14) is arranged at the end of the rod member (13) away from the substrate (1), and a first one-way valve is arranged at the opening (14), the first one-way valve controls the entry of gas into the rod member (13). An air outlet hole (15) is arranged on the rod member (13), a second one-way valve is arranged at the air outlet hole (15), and the second one-way valve is used for controlling the outflow of gas from the rod member (13).

6. A device for producing a lightweight double-faced pile cashmere fabric according to claim 5, characterized in that, The air outlet hole (15) is arranged on the side wall of the rod member (13) and is located at the end close to the opening (14).

7. A device for producing a lightweight double-faced pile cashmere fabric according to claim 6, characterized in that, The device further comprises two conveying assemblies, each conveying assembly comprises two conveying rollers (16) in contact with each other, and one of the conveying rollers (16) of each conveying assembly is driven by a conveying motor.

8. A device for producing a lightweight double-faced cashmere fabric according to claim 7, characterized in that, The conveying motor stops working when the substrate (1) moves downward, so that the fabric stops being conveyed.

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