Fabric low-pressure friction processor

Abstract

The utility model relates to a fabric low-pressure friction processor. Most of existing fabric frictioning and vulcanizing processes are completed manually, and the production efficiency, the batch stability and the product quality are low. The device comprises an unwinding device, a three-roller calender, a needle plate chain transmission device, a hot drying tunnel, an automatic winding device and an electrical control system, the unwinding device is arranged on one side of the three-roller calender, one end of the needle plate chain conveying device is arranged between the three-roller calender and the hot drying channel, the other end of the needle plate chain conveying device penetrates through the hot drying channel to be arranged in the automatic winding device, and the hot drying channel is arranged on the outer side of the middle of the needle plate chain conveying device. And the three-roller calender is of an F-shaped structure. According to the utility model, the technological processes of automatic fabric feeding, automatic frictioning, automatic transmission, automatic vulcanization and automatic winding can be realized, and the production efficiency, the batch stability and the product quality can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite vulcanization equipment, in particular to a low-pressure friction processing machine for fabrics. Background Art

[0002] At present, the production of most rubber fabrics with single-sided rubber rubbing and rubber composite products needs to be carried out separately. First, the fabric is manually rubbed with rubber on a calender, and then the rubbed fabric is placed in a hot oven for two-stage vulcanization. The current process mainly relies on manual work.

[0003] According to the existing process flow of fabric rubbing and vulcanization, the three-roll calender used is an "I"-shaped structure, and the adhesive placement position and fabric feeding position are distributed on both sides of the equipment. At least two people are required to operate on both sides of the equipment during operation. The final rubbing cloth is short due to human factors and needs to be cut continuously. The fabric after rubbing the adhesive is manually laid flat on the grate of the oven for two-stage vulcanization. Most of the multiple processes are completed manually, and the production method relying on manual labor has many defects: the labor intensity of the operators is high; there are certain safety hazards, such as roller squeezing and burns; the single output is low, the semi-finished product occupies a large area, and the production efficiency is low; it requires the joint efforts of multiple people to complete, and the production cost is high; manual participation reduces the batch stability of the product, thereby affecting the quality of the product; for adhesives that are prone to wrinkles, the product qualification rate is even lower.

[0004] Therefore, there is an urgent need for a low-pressure friction processing machine for fabrics that can realize the process of automatic fabric feeding, automatic gluing, automatic transmission, automatic vulcanization, automatic winding, etc., and can improve production efficiency, batch stability and product quality. Summary of the Invention

[0005] The utility model aims to provide a low-pressure friction processing machine for fabrics, so as to at least solve the problems that the existing fabric rubbing and vulcanization processes mostly rely on manual work and have low production efficiency, batch stability and product quality.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present utility model is:

[0007] A low-pressure friction processing machine for fabrics, comprising an unwinding device, a three-roll calender, a needle plate chain transmission device, a hot drying tunnel, an automatic winding device and an electrical control system;

[0008] The unwinding device and the electrical control system are respectively arranged on both sides of the three-roll calender. One end of the needle chain transmission device is arranged between the three-roll calender and the hot drying tunnel, and the other end passes through the hot drying tunnel and is arranged in the automatic winding device. The hot drying tunnel is arranged outside the middle part of the needle chain transmission device.

[0009] The three-roll calender is an "F" type structure.

[0010] Furthermore, the unwinding device includes a detent shaft, a magnetic powder brake and an unwinding base. The unwinding base is arranged on the three-roll calender, the magnetic powder brake is arranged on the unwinding base, one end of the detent shaft is connected to the magnetic powder brake, and the other end is arranged on the unwinding base.

[0011] Furthermore, the three-roll calender includes a No. 1 roller, a No. 2 roller, a No. 3 roller, a calendering frame, multiple calendering motors, a base and a rubber baffle. The calendering frame is arranged on the base, and the No. 1 roller, the No. 2 roller and the No. 3 roller are arranged in sequence from top to bottom in the calendering frame. The inner wall of the calendering frame is provided with multiple slide grooves. The multiple calendering motors are respectively arranged on both sides of the No. 1 roller and the No. 3 roller. The calendering motors are connected to displacement sensors and display instruments. The rubber baffle is arranged between the No. 1 roller and the No. 2 roller.

[0012] Furthermore, the needle plate chain transmission device includes a vertical guide rail assembly, a chain assembly, an automatic needle feeding mechanism, an auxiliary needle feeding mechanism, a needle removing wheel, an edge detection mechanism, an entrance support frame and an exit support frame. The vertical guide rail assembly is arranged throughout the interior of the hot drying tunnel, and the two ends of the vertical guide rail assembly are respectively arranged on the entrance support frame and the exit support frame. The chain assembly is arranged on the vertical guide rail assembly, the automatic needle feeding mechanism and the edge detection mechanism are respectively arranged on the upper and lower sides of the entrance end of the vertical guide rail assembly, the auxiliary needle feeding mechanism is arranged on one side of the automatic needle feeding mechanism, and the needle removing wheel is arranged at the end of the vertical guide rail assembly.

[0013] Furthermore, the vertical guide rail assembly includes a nose guide rail, a nose transition guide rail, an intermediate guide rail, a tail transition guide rail, a tail guide rail and a main sprocket that are horizontally connected in sequence. The nose guide rail, the nose transition guide rail, the intermediate guide rail, the tail transition guide rail and the tail guide rail are connected to form an integral guide rail. The nose guide rail and the tail guide rail are respectively arranged on the inlet support frame and the outlet support frame. The nose transition guide rail, the intermediate guide rail and the tail transition guide rail are respectively arranged on the guide rail support beam, and the main sprocket is connected to the tail guide rail.

[0014] Furthermore, the chain assembly includes a needle seat chain and a needle plate, the needle plate is arranged on the vertical guide rail assembly, and the needle seat chain is arranged on the needle plate.

[0015] Furthermore, the hot drying tunnel includes multiple sections of insulation boxes, multiple doors, a cooling mechanism, an air supply mechanism and a heating mechanism. The multiple sections of insulation boxes are horizontally connected in sequence, the doors are respectively arranged at both ends of the multiple sections of insulation boxes, the air supply mechanism and the heating mechanism are arranged on the top outer wall of the insulation box, and the cooling mechanism is arranged at the rear section of the insulation box.

[0016] Furthermore, the automatic winding device includes a winding motor, a winding frame, a cloth guide roller and an air expansion shaft. The cloth guide roller and the air expansion shaft are both arranged in the winding frame, and the winding motor is arranged outside the winding frame.

[0017] Furthermore, the electrical control system includes an electric control cabinet, a touch screen, a PLC and control software, the control software is loaded into the PLC, the PLC is set in the electric control cabinet, and the touch screen is set on the electric control cabinet.

[0018] Furthermore, the processing machine also includes a run button, a stop button and a safety protection device, and the run button and the stop button are both set on the electric control cabinet. The safety protection device includes multiple safety emergency stop buttons and an over-temperature protection mechanism. The multiple safety emergency stop buttons are respectively set at the front end, middle and rear end of the processing machine, and the over-temperature protection mechanism is set on the heating mechanism of the hot drying tunnel.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] The utility model provides a low-pressure friction processing machine for fabrics, which can realize the process of automatic feeding, automatic gluing, automatic transmission, automatic vulcanization and automatic winding of fabrics, greatly reducing the labor intensity and production costs of workers, thereby ensuring labor safety and improving production efficiency, and can meet the technical requirements of various types of fabrics being flat and wrinkle-free during the gluing and vulcanization processes, and has strong versatility; the utility model replaces the operating steps of manual gluing, reduces the quality problems caused by human factors such as fabric wrinkles and uneven gluing thickness, thereby ensuring the product quality and batch stability of the gluing fabrics, greatly improving the product qualification rate, and achieving production stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying any creative work, they can also obtain drawings of other embodiments based on these drawings.

[0022] Figure 1 It is a planar schematic diagram of the utility model;

[0023] Figure 2 This is a schematic diagram of the connection between the needle plate chain transmission device and the automatic winding device;

[0024] Figure 3 This is the main view of the three-roll calender;

[0025] Figure 4 It is a side sectional view of a three-roll calender;

[0026] Figure 5 It is a schematic diagram of the structure of a three-roll calender;

[0027] Figure 6 It is a plan view of the hot drying tunnel;

[0028] The symbols in the figure are:

[0029] 1- unwinding device, 101- guide shaft, 102- magnetic powder brake, 103- unwinding base,

[0030] 2-Three-roll calender, 21-No. 1 roller, 22-No. 2 roller, 23-No. 3 roller, 24-Calender frame, 25-Calender motor, 26-Base, 27-Block rubber plate, 28-Roller temperature adjustment mechanism, 29-Left speed ratio gear set, 210-Right speed ratio gear set, 211-Reducer, 212-Coupling, 213-Transmission base, 214-Motor, 215-Kick switch, 216-Spreading roller, 217-Gear reduction box, 218-Main motor, 219-Rotary joint, 220-Emergency stop button,

[0031] 3-Automatic needle feeding mechanism, 31-Cloth support plate, 4-Needle plate chain transmission device, 5-Hot drying tunnel, 51-Cooling mechanism, 6-Automatic winding device, 61-Air expansion shaft, 62-Spare air expansion shaft, 7-Electrical control system, 8-Edge detection mechanism, 9-Entrance support frame, 10-Exit support frame, 11-Auxiliary needle feeding mechanism, 12-Guide rail support beam. DETAILED DESCRIPTION

[0032] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "disposed" should be understood in a broad sense. For example, they may refer to fixed connection or disposition, detachable connection or disposition, or integral connection or disposition. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0035] Example:

[0036] like Figure 1 As shown, this embodiment provides a low-pressure friction processing machine for fabric, including a reeling device 1, a three-roll calender 2, a needle plate chain transmission device 4, a hot drying tunnel 5, an automatic reeling device 6 and an electrical control system 7, which are used to realize the process of automatic feeding, automatic gluing, automatic transmission, automatic vulcanization and automatic reeling of fabric, greatly reducing the production cost of workers' labor intensity, ensuring labor safety, and improving production efficiency, batch stability and product quality.

[0037] Specifically, if Figure 5 As shown, the unwinding device 1 is fixed to the side of the three-roll calender 2 by bolts. The unwinding device 1 includes a pay-off shaft 101, a magnetic powder brake 102 and an unwinding base 103. The unwinding base 103 is a flange-type safety chuck fixed to the three-roll calender 2. The magnetic powder brake 102 is fixed to the unwinding base 103. In this embodiment, the magnetic powder brake is a prior art model YSB-5. One end of the pay-off shaft 101 is connected to the magnetic powder brake 102, and the other end is located on the unwinding base 103. A cloth roll with a maximum size of φ300 mm can be placed on the pay-off shaft 101. The magnetic powder brake 102 is used to adjust the tension to maintain the tension when the cloth roll is paid off, so as to ensure that the fabric remains flat during transportation.

[0038] like Figure 3-Figure 5As shown, the three-roll calender 2 is an "F"-shaped structure, which is used to achieve single-sided gluing of the fabric. The "F"-shaped structure can realize single-person one-way operation. The three-roll calender 2 includes a No. 1 roller 21, a No. 2 roller 22, a No. 3 roller 23, a calender frame 24, four calender motors 25, a base 26 and a rubber baffle 27, and also includes a roller temperature adjustment mechanism 28, a left speed ratio gear set 29, a right speed ratio gear set 210, a reducer 211, a coupling 212, a transmission base 213, an electric motor 214, a kick switch 215, a cloth expansion roller 216, a gear reduction box 217, a main motor 218 and a rotary joint 219. The calender frame 24 is arranged on the base 26, and the No. 1 roller 21, the No. 2 roller 22 and the No. 3 roller 23 are arranged in the calender frame 24 from top to bottom. The rubber baffle 27 is located between the No. 1 roller and the No. 2 roller to control the width of the calendered film. Four chutes are provided on the inner wall of 24, and the cross-section of the chutes is rectangular. The chutes correspond to the two ends of the No. 1 roller 21 and the No. 3 roller 23 respectively. The four calendering motors 25 are respectively located on the left and right sides of the No. 1 roller 21 and the No. 3 roller 23, respectively controlling the gap between the left and right sides of the rollers. The calendering motors 25 can make the rollers of the No. 1 roller 21 and the No. 3 roller 23 move up and down in the chutes on the inner wall of the calendering frame 24 to achieve the purpose of adjusting the roller gap. It can be single-acting or linked. The calendering motor 25 is connected to a high-precision displacement sensor and a display instrument. The displacement sensor is installed between the No. 1 roller 21 and the No. 3 roller 23. The display instrument is located on the PLC. The displacement sensor and the display instrument are connected. The position of the roller is transmitted to the display instrument through the displacement sensor and observed through the touch screen. In addition, emergency stop buttons 220 at the extreme positions are provided at both ends of adjacent rollers for roller gap safety protection.

[0039] In this embodiment, the diameter of roller No. 1 21, roller No. 22 and roller No. 3 23 is 250 mm, the length is 762 mm, the spacing between rollers is 0-10 mm, the roller linear speed is 0.5-5 m / min, the speed ratio is 1:1.23:1.23, the power of the main motor 218 is 11 kW, and the speed ratio of the reducer 211 is 112.

[0040] Pass the fabric between roller No. 22 and roller No. 3, 23, and manually hang it on the needle plate of the needle plate chain transmission device 4. Adjust the equipment line speed to keep the fabric in a flat and stretched state. Place the whole piece of rubber between roller No. 1, 21 and roller No. 2, 22. Adjust the roller distance between roller No. 1, 21 and roller No. 2, 22 and the rubber baffles 27 on both sides to press the rubber into a film of a certain width and thickness. Use the roller speed ratio difference between roller No. 2, 22 and roller No. 3, 23 to rub the film onto the fabric.

[0041] like Figure 2As shown, the needle plate chain transmission device 4 is used to ensure that the fabric is smooth and wrinkle-free during the vulcanization molding and conveying process, including a vertical guide rail assembly, a chain assembly, an automatic needle-loading mechanism 3, an auxiliary needle-loading mechanism 11, a needle-removing wheel, an edge detection mechanism 8, an inlet support frame 9 and an outlet support frame 10. The vertical guide rail assembly is arranged inside the hot drying tunnel 5, and the two ends of the vertical guide rail assembly are respectively arranged on the inlet support frame 9 and the outlet support frame 10, the chain assembly is arranged on the vertical guide rail assembly, and the automatic needle-loading mechanism 3 and the edge detection mechanism 8 are respectively arranged on the vertical guide rail assembly. On the upper and lower sides of the mouth end, in this embodiment, the edge detection mechanism 8 is an electric eye. The fabric after rubbing the glue is pressed into the needle plate by an active brush and is accurately positioned by the edge detection mechanism 8. The edge detection mechanism 8 automatically adjusts the width of the needle plate on the needle seat chain according to the width of the fabric to ensure that the fabric remains stable and wrinkle-free during operation. The auxiliary needle-loading mechanism 11 is arranged on one side of the automatic needle-loading mechanism 3, and the needle-removing wheel is arranged at the end of the vertical guide rail assembly. The vertical guide rail assembly is the moving carrier of the chain assembly, and the chain assembly is the moving and clamping carrier of the fabric or the object to be dried.

[0042] The vertical guide rail assembly includes the nose guide rail, nose transition guide rail, intermediate guide rail, tail transition guide rail, tail guide rail and main sprocket connected horizontally in sequence. The nose guide rail, nose transition guide rail, intermediate guide rail, tail transition guide rail and tail guide rail are connected to form an integral guide rail. The nose guide rail and tail guide rail are respectively arranged on the inlet support frame 9 and the outlet support frame 10. The nose transition guide rail, intermediate guide rail and tail transition guide rail are respectively arranged on the guide rail support beam 12. The main sprocket is connected to the tail guide rail. Next, the machine head guide rail includes a passive sprocket and a cylinder. The chain assembly is tensioned by the cylinder before operation. The cylinder tensioning pressure adjustment range is: 0.3-0.45MPa (in actual operation, it needs to be appropriately adjusted according to the total length of the chain assembly and the temperature in the hot drying tunnel 5). The tail guide rail and chain main drive are driven by the motor through the cycloid and pulley secondary reduction and then through the spline shaft to drive the main sprocket to rotate, and then drive the chain assembly to rotate in a directional manner (that is, the chain assembly moves from the head to the tail).

[0043] The chain assembly includes a needle seat chain and a needle plate. The needle plate is arranged on the vertical guide rail assembly, and the needle seat chain is arranged on the needle plate. In this embodiment, the needle seat chain is a vertical tank chain structure, and the needle seat chain pitch is 63.5mm. The needle seat chain serves as a running and clamping carrier for the fabric to transmit up and down, and the main sprocket drives the needle seat chain to run.

[0044] The automatic needle feeding mechanism 3 includes a cloth supporting plate 31, an active brush, a lower supporting wheel, a passive brush and a needle valve type oil cup. A needle removing wheel is installed on the tail guide rail. Before the fabric enters the machine head and is pressed into the needle plate by the active brush, it needs to pass through the cloth guide roller under the control of a certain tension by the front-end facilities, and be close to the cloth supporting plate. Under the precise positioning of the edge detection mechanism 8, the brush cloth pressing wheel and the brush wheel are pressed into the needle plate of the running chain in the guide rail for transportation and transmission. When it comes out at the tail of the machine, the needle removing wheel assists in removing the cloth from the needle for winding.

[0045] The needle seat chain runs in the guide rail and is wound through the tail of the machine. Due to the characteristics of the guide rail and chain materials, in order to avoid aggravated wear of the guide rail chain, it is necessary to continuously add oil during operation. Since the guide rail in this embodiment is a vertical guide rail, the lubricating oil in the track groove will drip, so an oil pan is added at the guide rail connection to collect the dripping oil through the oil pan for centralized treatment to prevent the equipment and the ground from getting dirty.

[0046] like Figure 6 As shown, the hot drying tunnel 5 includes three sections of insulation boxes, two doors, a cooling mechanism 51, an air supply mechanism and a heating mechanism. The two doors are located on both sides of the three sections of insulation boxes for insulation and maintenance. The air supply mechanism and the heating mechanism are both fixed to the top outer wall of the insulation box. In this embodiment, the air supply mechanism is an air conditioner. The three sections of insulation boxes are fixedly connected horizontally in sequence. The insulation box is a rectangular parallelepiped. The cooling mechanism 51 is fixed to the rear section of the insulation box. In this embodiment, the cooling mechanism 51 is a negative pressure fan. The fabric after gluing enters the hot drying tunnel 5 through the needle plate chain transmission device 4. The air supply mechanism radiates hot air evenly on the surface of the fabric, vulcanizes and shapes the gluing fabric, and finally cools the vulcanized fabric through the cooling mechanism 51.

[0047] The automatic winding device 6 is used to wind up the vulcanized fabric. The automatic winding device 6 includes a winding motor, a winding frame, a cloth winding roller and an air expansion shaft 61. The winding method is passive winding. When the speed of the cloth winding roller is consistent with the speed of the needle plate chain transmission device 4, winding can be achieved. The winding motor is arranged on the outside of the winding frame. The automatic winding device 6 is also provided with a pad cloth station, which can combine the pad cloth and the wiped fabric for winding to prevent product adhesion, thereby ensuring product quality. Two brackets are fixed in parallel on the inner wall of the winding frame. In this embodiment, the automatic winding device 6 is also provided with a spare air expansion shaft 62, which can be quickly replaced. The air expansion shaft 61 and the spare air expansion shaft 62 are respectively installed on two brackets. A meter is also installed in the automatic winding device 6.

[0048] The electrical control system 7 is located on the right side of the three-roll calender 2 and is used to realize the automation of the entire production line in this embodiment, as well as to control and detect the speed of each mechanism component. The electrical control system 7 includes an electrical control cabinet, a touch screen, a PLC (Programmable Logic Controller) and control software. The control software is loaded into the PLC, which is set in the electrical control cabinet, and the touch screen is set on the electrical control cabinet. In this embodiment, the electrical control system 7 is existing technology.

[0049] This embodiment is also provided with a run button, a stop button and a safety protection device. The safety protection device includes three safety emergency stop buttons and an over-temperature protection mechanism. The three safety emergency stop buttons are respectively arranged at the head and tail of the processing machine needle plate chain transmission device 4 and the middle of the hot drying tunnel 5. Emergency braking can be performed when an unexpected failure occurs in the equipment. The over-temperature protection mechanism is arranged on the heating mechanism of the hot drying tunnel 5. In this embodiment, the over-temperature protection mechanism is a heating switch. When the temperature of the hot drying tunnel 5 exceeds the set protection temperature, the heating switch is automatically disconnected to prevent fire. The run button and the stop button are both arranged on the electric control cabinet. The run button is used to start the equipment with one click, and the stop button is used to shut down the operation of the equipment with one click. The run button, stop button, safety emergency stop button and heating switch are respectively electrically connected to the electrical control system 7.

[0050] In this embodiment, the fixed connections between the various components are all bolt connections.

[0051] The working process of this embodiment is as follows:

[0052] 1. First, set the temperature of the hot drying tunnel 5 to the process temperature. After the temperature reaches the set temperature, adjust the roller gap between the second roller 22 and the third roller 23 of the three-roll calender 2. Pass the fabric through the rollers of the three-roll calender 2 and manually hang it on the needle plate. Set the tension of the corresponding unwinding device 1 according to the type of fabric. Press the run button and the equipment will start running. The edge detection mechanism 8 will automatically adjust the needle plate width according to the fabric width. Press the stop button after the adjustment is completed.

[0053] 2. Set the roller gap between the No. 1 roller 21 and the No. 2 roller 22 of the three-roller calender 2 according to the product thickness requirements, adjust the position of the rubber baffle 27, place the rubber material between the No. 1 roller 21 and the No. 2 roller 22, start the equipment operation button, and rub the rubber on the equipment. The fabric after rubbing the rubber is transported by the needle plate chain device 4 into the hot drying tunnel 5 for high-temperature vulcanization. After vulcanization is completed, the rubbed fabric is cooled by the cooling mechanism 51.

[0054] 3. After cooling, the wiped fabric is automatically separated from the needle plate chain transmission device 4 by the pin-off wheel, and then the fabric is wound up by the automatic winding device 6.

[0055] The above examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. Those skilled in the art of the present invention can make some simple deductions, modifications or substitutions based on the concept of the present invention.

Claims

1. A low-pressure friction processing machine for fabrics, characterized by: It includes an unwinding device (1), a three-roll calender (2), a needle plate chain transmission device (4), a hot drying tunnel (5), an automatic winding device (6) and an electrical control system (7); The unwinding device (1) and the electrical control system (7) are respectively arranged on both sides of the three-roll calender (2); one end of the needle plate chain transmission device (4) is arranged between the three-roll calender (2) and the hot drying tunnel (5); the other end passes through the hot drying tunnel (5) and is arranged in the automatic winding device (6); the hot drying tunnel (5) is arranged outside the middle of the needle plate chain transmission device (4); The three-roll calender (2) has an "F" type structure.

2. A low-pressure friction processing machine for fabrics according to claim 1, characterized in that: The unwinding device (1) comprises a deflection shaft (101), a magnetic powder brake (102) and an unwinding base (103); the unwinding base (103) is arranged on the three-roll calender (2); the magnetic powder brake (102) is arranged on the unwinding base (103); one end of the deflection shaft (101) is connected to the magnetic powder brake (102), and the other end is arranged on the unwinding base (103).

3. The low-pressure friction processing machine for fabric according to claim 1, characterized in that: The three-roll calender (2) comprises a No. 1 roller (21), a No. 2 roller (22), a No. 3 roller (23), a calendering frame (24), a plurality of calendering motors (25), a base (26) and a rubber baffle (27), wherein the calendering frame (24) is arranged on the base (26), the No. 1 roller (21), the No. 2 roller (22) and the No. 3 roller (23) are sequentially arranged in the calendering frame (24) from top to bottom, a plurality of chutes are provided on the inner wall of the calendering frame (24), a plurality of calendering motors (25) are respectively provided on both sides of the No. 1 roller (21) and the No. 3 roller (23), the calendering motors (25) are connected to a displacement sensor and a display instrument, and the rubber baffle (27) is provided between the No. 1 roller (21) and the No. 2 roller (22).

4. The low-pressure friction processing machine for fabric according to claim 1, characterized in that: The needle plate chain transmission device (4) includes a vertical guide rail assembly, a chain assembly, an automatic needle loading mechanism (3), an auxiliary needle loading mechanism (11), a needle removal wheel, an edge detection mechanism (8), an entrance support frame (9) and an exit support frame (10). The vertical guide rail assembly is arranged inside the hot drying tunnel (5). The two ends of the vertical guide rail assembly are respectively arranged on the entrance support frame (9) and the exit support frame (10). The chain assembly is arranged on the vertical guide rail assembly. The automatic needle loading mechanism (3) and the edge detection mechanism (8) are respectively arranged on the upper and lower sides of the entrance end of the vertical guide rail assembly. The auxiliary needle loading mechanism (11) is arranged on one side of the automatic needle loading mechanism (3). The needle removal wheel is arranged at the end of the vertical guide rail assembly.

5. The low-pressure friction processing machine for fabric according to claim 4, characterized in that: The vertical guide rail assembly includes a nose guide rail, a nose transition guide rail, an intermediate guide rail, a tail transition guide rail, a tail guide rail and a main sprocket which are horizontally connected in sequence. The nose guide rail, the nose transition guide rail, the intermediate guide rail, the tail transition guide rail and the tail guide rail are connected to form an integral guide rail. The nose guide rail and the tail guide rail are respectively arranged on the inlet support frame (9) and the outlet support frame (10). The nose transition guide rail, the intermediate guide rail and the tail transition guide rail are respectively arranged on the guide rail support beam (12). The main sprocket is connected to the tail guide rail.

6. The low-pressure friction processing machine for fabric according to claim 4, characterized in that: The chain assembly includes a needle seat chain and a needle plate. The needle plate is arranged on the vertical guide rail assembly, and the needle seat chain is arranged on the needle plate.

7. The low-pressure friction processing machine for fabric according to claim 1, characterized in that: The hot drying tunnel (5) comprises a plurality of sections of heat preservation boxes, a plurality of doors, a cooling mechanism, an air supply mechanism and a heating mechanism. The plurality of sections of heat preservation boxes are horizontally connected in sequence. The doors are respectively arranged at both ends of the plurality of sections of heat preservation boxes. The air supply mechanism and the heating mechanism are arranged on the outer wall of the top of the heat preservation box. The cooling mechanism is arranged at the rear section of the heat preservation box.

8. The low-pressure friction processing machine for fabric according to claim 1, characterized in that: The automatic winding device (6) comprises a winding motor, a winding frame, a cloth guide roller and an air expansion shaft (61); the cloth guide roller and the air expansion shaft (61) are both arranged inside the winding frame, and the winding motor is arranged outside the winding frame.

9. The low-pressure friction processing machine for fabric according to claim 7, characterized in that: The electrical control system (7) comprises an electric control cabinet, a touch screen, a PLC and control software, wherein the control software is loaded into the PLC, the PLC is arranged in the electric control cabinet, and the touch screen is arranged on the electric control cabinet.

10. The low-pressure friction processing machine for fabric according to claim 9, characterized in that: The processing machine further comprises a run button, a stop button and a safety protection device, wherein the run button and the stop button are both arranged on the electric control cabinet, and the safety protection device comprises a plurality of safety emergency stop buttons and an over-temperature protection mechanism, wherein the plurality of safety emergency stop buttons are respectively arranged at the front end, the middle part and the rear end of the processing machine, and the over-temperature protection mechanism is arranged on the heating mechanism of the hot drying tunnel (5).

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