A pretreatment device for dyeing polyester fabric

Abstract

This utility model relates to the field of polyester fabric production technology, specifically a pretreatment device for polyester fabric dyeing. It includes a frame, an input roller, an output roller, a guide roller, a cleaning component, and a dewatering component. The frame has two openings, one for the feed inlet and the other for the discharge outlet. The feed inlet and discharge outlet are rotatably connected to the input roller and the output roller, respectively. Multiple guide rollers are connected inside the frame. The cleaning component is connected to the frame, and the dewatering component is positioned between the cleaning component and the discharge outlet. In this utility model, after the cleaning rollers clean both sides of the polyester fabric, it is further cleaned by spraying through different first and second spray pipes. Impurities that may be adhering to the bottom of the fabric are washed off by gravity and high-speed liquid. The top of the fabric, after passing through the guide rollers, forms an arch-like shape, guiding the water remaining on the fabric to both sides, preventing it from accumulating in the middle of the fabric and causing secondary pollution.

Description

Technical Field

[0001] This utility model relates to the field of polyester fabric production technology, specifically to a polyester fabric dyeing pretreatment device. Background Technology

[0002] Polyester fabric has high strength and elastic recovery ability. When using polyester fabric to make clothing, it first needs to be dyed. However, existing polyester fabrics may have some difficult-to-remove dust or other foreign matter on the surface during dyeing, resulting in substandard dyeing quality.

[0003] Chinese Patent CN217438514U discloses a pretreatment device for dyeing polyester fabric, including a housing, a first extension plate, an input roller, a second extension plate, and an output roller. The first extension plates are symmetrically fixedly installed at one end of the housing. The input roller is rotatably connected between the two first extension plates. The second extension plates are symmetrically fixedly installed at the other end of the housing. The output roller is rotatably connected between the two second extension plates. The device also includes two guide rollers rotatably installed inside the housing. In use, the polyester fabric is drawn into the housing by the input roller. Two cleaning rollers and two water spray pipes remove impurities adhering to the surface of the polyester fabric after washing. A filter plate allows for water recycling. With the cooperation of the first and second squeezing rollers, most of the water in the polyester fabric is squeezed out, allowing the fabric to dry faster and proceed to the next process more quickly.

[0004] However, in the above technical solution, only two cleaning rollers and two water spray pipes are used to remove the impurities that adhere to the surface of the polyester fabric after cleaning. However, the impurities located above the fabric will be attracted to stay on the fabric due to their own weight and the adhesion effect caused by the water wetting the fabric. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a pretreatment device for dyeing polyester fabric.

[0006] The technical solution of this utility model is as follows: A pretreatment device for dyeing polyester fabric includes a frame with two notches, namely a feed inlet and a discharge outlet. An input roller and an output roller are rotatably connected to the feed inlet and discharge outlet, respectively. Multiple guide rollers are connected inside the frame. A cleaning component is connected to the frame and consists of a drive device, cleaning roller brushes, a first spray pipe, a second spray pipe, and guide rollers. Two vertically parallel cleaning roller brushes are rotatably connected to the two sides of the frame at their ends. The drive device is connected to the frame, with one end connected to a cleaning roller brush. The first and second spray pipes are both connected to the frame. Guide rollers are rotatably connected to the frame and consist of multiple roller bodies connected sequentially, arranged in a V-shape or U-shape. The first spray pipe is positioned above the guide rollers. A dewatering component is located between the cleaning component and the discharge outlet. The dewatering component includes a first squeeze roller, a second squeeze roller, and a telescopic device. The first and second squeeze rollers are parallel to each other. Two parallel telescopic devices are connected to the frame, with the second squeeze roller positioned at the telescopic end of the telescopic device.

[0007] Preferably, the cleaning assembly also includes two drive pulleys connected to one end of the two cleaning rollers; and a drive belt tensioned on the two drive pulleys.

[0008] Preferably, the dewatering assembly also includes a support frame, two of which are symmetrically arranged. The support frame is connected to the frame and is rotatably connected to both ends of the first extrusion roller. The number of mounting seats corresponds to the telescopic device. The mounting seats are connected to the telescopic end of the telescopic device and are rotatably connected to the second extrusion roller.

[0009] Preferably, a bellows cover is fitted on the outside of the telescopic device, and the two ends of the bellows cover are connected to the frame and the mounting base, respectively.

[0010] Preferably, the nozzles on the first spray pipe are arranged vertically downwards, and the nozzles on the second spray pipe are arranged at an angle towards the fabric.

[0011] Preferably, adjacent rollers in the guide roller are connected by a universal coupling.

[0012] Preferably, the guide roller is connected to a plurality of guide plates extending along its axial direction.

[0013] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0014] In this invention, after the cleaning roller brush cleans both sides of the polyester fabric, it is cleaned by spraying it through the first and second spray pipes facing different directions. Impurities that may be attached to the bottom of the fabric will be washed off by its own gravity and the high-speed liquid. The top of the fabric forms an arch-like shape after passing through the guide roller, which guides the water on the fabric to both sides of the fabric, preventing it from accumulating in the middle of the fabric and causing secondary pollution. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the present invention;

[0016] Figure 2 for Figure 1 The main view;

[0017] Figure 3 This is a schematic diagram of the internal structure of the rack;

[0018] Figure 4 for Figure 3 Enlarged view of the structure at point A.

[0019] Reference numerals: 1. Frame; 2. Input roller; 3. Output roller; 4. Guide roller; 5. Drive unit; 6. Cleaning roller brush; 7. First spray pipe; 8. Second spray pipe; 9. Guide roller; 10. First squeeze roller; 11. Second squeeze roller; 12. Telescopic device; 13. Drive pulley; 14. Drive belt; 15. Support frame; 16. Mounting base; 17. Bellows guard; 18. Guide plate. Detailed Implementation

[0020] Example 1

[0021] like Figures 1-4 As shown, this utility model proposes a pretreatment device for dyeing polyester fabric, including a frame 1, an input roller 2, an output roller 3, a guide roller 4, a cleaning component, and a dewatering component. The frame 1 has two notches, which are the feed inlet and the discharge outlet, respectively. The feed inlet and the discharge outlet are rotatably connected to the input roller 2 and the output roller 3, respectively. Multiple guide rollers 4 are connected inside the frame 1. The cleaning component is connected to the frame 1 and consists of a drive device 5, cleaning roller brushes 6, a first spray pipe 7, a second spray pipe 8, and guide rollers 9. The two vertically parallel cleaning roller brushes 6 are rotatably connected at both ends to the two sides of the frame 1, respectively. The drive device 5 is connected to the frame 1, and any end of the drive device 5 is connected to the cleaning roller brushes 6. The cleaning roller brush 6 is connected; the drive device 5 is a motor; the first spray pipe 7 and the second spray pipe 8 are both connected to the frame 1; the guide roller 9 is rotatably connected to the frame 1; the guide roller 9 is composed of multiple roller bodies connected in sequence and arranged in a V-shape or U-shape; the first spray pipe 7 is set above the guide roller; the dewatering component is set between the cleaning component and the discharge port; the water discharge component includes a first squeeze roller 10, a second squeeze roller 11 and a telescopic device 12; the first squeeze roller 10 and the second squeeze roller 11 are arranged in parallel; the two parallel telescopic devices 12 are connected to the frame 1; the telescopic end of the telescopic device 12 is provided with the second squeeze roller 11; the telescopic device 12 is selected from, but is not limited to, a hydraulic cylinder.

[0022] In an optional embodiment, a bellows cover 17 is fitted on the outside of the telescopic device 12, and the two ends of the bellows cover 17 are connected to the frame 1 and the mounting base 16 respectively; the bellows cover 17 prevents sewage from entering the telescopic device 12 and affecting its normal operation.

[0023] In an optional embodiment, the nozzles on the first spray pipe 7 are vertically downward, and the nozzles on the second spray pipe 8 are tilted towards the fabric. The nozzles on the first spray pipe 7 point directly to the guide rod 9. The vertical setting facilitates uniform spraying. The second spray pipe 8 is located below the fabric, so the fabric cannot accumulate water. Therefore, it is tilted to rinse and remove impurities.

[0024] In an optional embodiment, adjacent rollers in the guide roller 9 are connected by a universal coupling; the universal coupling enables the guide roller 9 to maintain its inverted U-shaped or inverted V-shaped shape while rotating.

[0025] In an optional embodiment, a plurality of guide plates 18 extending axially are connected to the guide roller 9; the guide plates can guide liquid remaining on the roller body of the guide roller 9 to assist it in being discharged to both sides.

[0026] Example 2

[0027] like Figures 1-3 As shown, the present invention proposes a pretreatment device for dyeing polyester fabric. Compared with Embodiment 1, this embodiment describes the detailed structure of the cleaning component. The cleaning component also includes a transmission pulley 13 and a transmission belt 14. There are two transmission pulleys 13, which are connected to one end of two cleaning roller brushes 6. The transmission belt 14 is tensioned on the two transmission pulleys 13.

[0028] Example 3

[0029] like Figures 2-3 As shown, the present invention proposes a pretreatment device for dyeing polyester fabric. Compared with Embodiment 2, this embodiment describes the detailed structure of the dewatering component. The dewatering component also includes a support frame 15 and a mounting base 16. There are two symmetrically arranged support frames 15. The support frames 15 are connected to the frame 1. The support frames 15 are rotatably connected to both ends of the first extrusion roller 10. The number of mounting bases 16 corresponds to the telescopic device 12. The mounting bases 16 are connected to the telescopic end of the telescopic device 12. The mounting bases 16 are rotatably connected to the second extrusion roller 11.

[0030] In summary, when this utility model is used, the polyester fabric enters through the input roller 2 and passes sequentially through multiple guide rollers 4, cleaning roller brushes 6, guide rollers 9, first extrusion rollers 10 and second extrusion rollers 11, and finally contacts the output roller 3 to exit the frame 1 and enter the subsequent drying equipment. While moving within the frame 1, the drive device 5 drives a cleaning roller brush 6 to rotate, and through the transmission belt 14, drives two transmission pulleys 13, causing the cleaning roller brushes 6 located on the upper and lower sides of the fabric to clean impurities on the fabric surface. Simultaneously, an external water pump draws water mixed with cleaning agent and sprays it from the nozzles on the first spray pipe 7 and the second spray pipe 8. Through the action of the cleaning agent and the high-speed, high-pressure liquid... The machine reduces the residue of impurities. At the same time, the inverted U-shaped or inverted V-shaped guide rollers 9 form an arch-like structure on the fabric, so that the sprayed water flows to both sides of the frame 1 after contacting the fabric, preventing it from accumulating on the top of the fabric. The nozzles of the second spray pipe 8 located below are inclined and can wash away any impurities that may be present. Then, the fabric enters between the first squeeze roller 10 and the second squeeze roller 11 to squeeze out a certain amount of water to facilitate the subsequent drying process. The telescopic device 12 can be adjusted to move the second squeeze roller 11 according to different size or pressure requirements, and the distance between the first squeeze roller 10 and the second squeeze roller 11 can be adjusted to adapt to different scenarios.

[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A pretreatment apparatus for dyeing polyester fabric, characterized in that, include The frame (1) has two notches, which are the feed inlet and the discharge outlet respectively. The feed inlet and the discharge outlet are rotatably connected to the input roller (2) and the output roller (3) respectively. Multiple guide rollers (4) are connected inside the frame (1). The cleaning assembly is connected to the frame (1). The cleaning assembly consists of a drive device (5), a cleaning roller brush (6), a first spray pipe (7), a second spray pipe (8), and a guide roller (9). The two cleaning roller brushes (6) arranged parallel to each other are rotatably connected to the two sides of the frame (1) respectively. The drive device (5) is connected to the frame (1). Any end of the drive device (5) is connected to the cleaning roller brush (6). The first spray pipe (7) and the second spray pipe (8) are both connected to the frame (1). The guide roller (9) is rotatably connected to the frame (1). The guide roller (9) is composed of multiple roller bodies connected in sequence and its whole body is arranged in a V-shape or U-shape. The first spray pipe (7) is set above the guide roller. The dewatering component is located between the cleaning component and the discharge port. The water discharge component includes a first squeezing roller (10), a second squeezing roller (11), and a telescopic device (12). The first squeezing roller (10) and the second squeezing roller (11) are arranged in parallel. The two parallel telescopic devices (12) are connected to the frame (1). The telescopic end of the telescopic device (12) is provided with the second squeezing roller (11).

2. The polyester fabric dyeing pretreatment apparatus according to claim 1, characterized in that, The cleaning components also include There are two drive pulleys (13), which are connected to one end of the two cleaning roller brushes (6); A drive belt (14) is tensioned on two drive pulleys (13).

3. The polyester fabric dyeing pretreatment apparatus according to claim 1, characterized in that, The dehydration unit also includes There are two support frames (15) symmetrically arranged. The support frames (15) are connected to the frame (1) and are rotatably connected to both ends of the first extrusion roller (10). Mounting base (16) is provided in a number corresponding to the telescopic device (12). Mounting base (16) is connected to the telescopic end of the telescopic device (12). Mounting base (16) is rotatably connected to the second extrusion roller (11).

4. The polyester fabric pretreatment apparatus according to claim 1, characterized in that, The telescopic device (12) is fitted with a bellows cover (17) on the outside, and the two ends of the bellows cover (17) are connected to the frame (1) and the mounting base (16) respectively.

5. The polyester fabric dyeing pretreatment apparatus according to claim 1, characterized in that, The nozzles on the first spray pipe (7) are set vertically downwards, and the nozzles on the second spray pipe (8) are set at an angle towards the fabric.

6. The polyester fabric dyeing pretreatment apparatus according to claim 1, characterized in that, The adjacent rollers in the guide roller (9) are connected by a universal coupling.

7. The polyester fabric pretreatment apparatus according to claim 6, characterized in that, Multiple guide plates (18) extending along its axial direction are connected to the guide roller (9).

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