Pretreatment device for polyester-cotton fabric production

Abstract

This application relates to the technical field of polyester-cotton fabric production, and in particular to a pretreatment device for polyester-cotton fabric production, comprising a bleaching tank, on which a filtration mechanism and an agitation mechanism are provided; the filtration mechanism includes a suction pump communicating with the bottom of the bleaching tank, the outlet end of the suction pump communicating with a holding cylinder, the holding cylinder being fixedly connected to the bleaching tank; a filter cylinder is coaxially fixedly disposed inside the holding cylinder, the peripheral wall of the filter cylinder being provided with multiple filter holes; the inner cavity of the filter cylinder is communicating with the interior of the bleaching tank through the agitation mechanism; an end cap is detachably connected to the bottom of the holding cylinder. This application can remove impurities from the bleaching solution through the filtration mechanism to ensure the bleaching effect, utilize the agitation mechanism to enhance the fluidity of the bleaching solution and improve the bleaching uniformity, and has a structure for easy cleaning of impurities from the filter cylinder, which facilitates maintenance and extends the service life of the device.

Description

Technical Field

[0001] This application relates to the technical field of polyester-cotton fabric production, and in particular to a pretreatment apparatus for polyester-cotton fabric production. Background Technology

[0002] Polyester-cotton blend fabric is a type of fabric made from a blend of polyester and cotton. It boasts advantages such as crispness, durability, and quick-drying properties, making it widely used in clothing and home textiles. Pre-treatment is a crucial step in the production of polyester-cotton blend fabric, including desizing, scouring, and bleaching. The purpose of bleaching is to remove natural pigments and impurities from the fabric, improving its whiteness and luster. Currently, polyester-cotton blend fabric is typically bleached by immersing the fabric in a bleaching bath. However, during bleaching, fiber debris and impurities from the fabric detach and fall into the bleaching solution, causing it to gradually become cloudy and affecting the bleaching effect. Furthermore, the cloudy bleaching solution shortens the fabric's lifespan and increases production costs.

[0003] A search revealed that Chinese Patent Publication No. CN222885133U discloses a rapid bleaching device for processing preserved flowers, which includes a water tank. A protective shell is fixedly connected to the top of the water tank. A draining component is provided on the top and inside of the protective shell. A container basket is fixedly connected to the bottom of the draining component. An agitating component is provided on the outer surface and inside of the water tank. The agitating component includes a connecting shell. There are two connecting shells, and one end of each connecting shell is fixedly connected to one end of the water tank.

[0004] Regarding the aforementioned related technologies, the inventors have discovered the following drawbacks: in the prior art, impurities on the fabric can fall into the bleach solution, causing the bleach solution to become cloudy and thus affecting the bleaching effect. To solve the technical problem of impurities on the fabric falling into the bleach solution, causing cloudiness and affecting the bleaching effect, this application employs a filtration mechanism including a suction pump, a holding cylinder, and a filter cylinder to filter impurities, and an agitation mechanism including a rotating cylinder, a radial cylinder, a nozzle, and a motor to enhance the flowability of the bleach solution. Furthermore, it incorporates a cleaning ring and other structures to facilitate the removal of impurities. This achieves the technical effects of improved bleaching effect and uniformity, easier maintenance, and extended device lifespan. Utility Model Content

[0005] In order to reduce the amount of impurities falling into the bleaching solution and thus reducing the bleaching effect, this application provides a pretreatment device for the production of polyester-cotton fabric.

[0006] This application provides a pretreatment device for polyester-cotton fabric production, employing the following technical solution: It includes a bleaching tank, on which a filtration mechanism and an agitation mechanism are installed; the filtration mechanism includes a suction pump connected to the bottom of the bleaching tank, and the outlet end of the suction pump is connected to a holding cylinder, which is fixedly connected to the bleaching tank; a filter cylinder is coaxially fixed inside the holding cylinder, and the peripheral wall of the filter cylinder has multiple filter holes; the inner cavity of the filter cylinder is connected to the interior of the bleaching tank through the agitation mechanism; and an end cap is detachably connected to the bottom of the holding cylinder. The bleaching liquid containing impurities from the bottom of the bleaching tank is input into the holding cylinder by the suction pump, and after filtration by the filter cylinder, the clean bleaching liquid is returned to the bleaching tank.

[0007] Optionally, the agitation mechanism includes a rotating cylinder that is rotatably connected to the filter cylinder on the same axis; the rotating cylinder has openings at both ends, and the inner cavity of the rotating cylinder is in communication with the inner cavity of the filter cylinder.

[0008] Optionally, a radial cylinder is fixedly provided at the end of the rotating cylinder away from the filter cylinder, and the inner cavity of the radial cylinder is in communication with the inner cavity of the rotating cylinder.

[0009] Optionally, the radial cylinder has multiple nozzles on the side away from the filter cylinder.

[0010] Optionally, a motor is fixedly installed at the bottom of the bleaching tank, and a first gear is fixedly installed coaxially on the output shaft of the motor.

[0011] Optionally, a second toothed ring that meshes with the first gear is coaxially fixed on the outer wall of the rotating cylinder.

[0012] Optionally, a cleaning ring is vertically slidably connected inside the container; the outer wall of the cleaning ring is in contact with the inner wall of the container, and the inner wall of the cleaning ring is in contact with the outer wall of the filter cylinder.

[0013] Optionally, a sliding rod is fixedly provided on the lower end face of the cleaning ring, and a sliding hole adapted to the sliding rod is provided on the end cap.

[0014] Optionally, a compression spring is sleeved on the outer wall of the sliding rod, with the upper part of the compression spring fixedly connected to the lower end face of the cleaning ring and the lower part of the compression spring fixedly connected to the upper end face of the end cap.

[0015] In summary, this application includes the following beneficial technical effects: 1. This utility model filters the bleach in the bleaching tank through a filtration mechanism, which can effectively remove fiber debris and impurities that fall from the fabric into the bleach, prevent the bleach from becoming turbid, and ensure the bleaching effect. At the same time, the stirring mechanism enhances the fluidity of the bleach, and the nozzle can change the spray direction as the rotating part rotates, so that the polyester-cotton fabric comes into more uniform contact with the bleach, further improving the bleaching uniformity.

[0016] 2. By setting up cleaning rings and other related components, this utility model can easily scrape and clean the impurities attached to the outer wall of the filter cylinder. The end cap at the bottom of the container is removable, which facilitates the processing of the collected impurities. This helps to maintain the filtration performance of the filtration mechanism, extend the service life of the device, and reduce maintenance costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application; Figure 2 This is a schematic diagram of the lower part of the bleaching tank in an embodiment of this application; Figure 3 This is a schematic diagram of the radial cylinder and the holding cylinder in the embodiments of this application; Figure 4 This is a schematic diagram of the internal structure of the container in an embodiment of this application.

[0018] Reference numerals in the attached diagram: 1. Bleaching tank; 2. Suction pump; 3. Container cylinder; 4. Filter cylinder; 41. Filter hole; 5. End cap; 51. Sliding hole; 6. Rotating cylinder; 61. Second gear ring; 7. Radial cylinder; 71. Nozzle; 8. Motor; 81. First gear; 9. Cleaning ring; 10. Sliding rod; 11. Compression spring; 12. Through hole. Detailed Implementation

[0019] The following is in conjunction with the appendix Figures 1-4 This application will be further described in detail below. The technical solutions in the embodiments of this application will be clearly described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0020] This application discloses a pretreatment device for producing polyester-cotton fabric. For example... Figure 1 As shown, the pretreatment device for polyester-cotton fabric production in this embodiment of the application includes a bleaching tank 1, which is used to contain bleaching liquid and polyester-cotton fabric to be treated; the bleaching tank 1 is integrated with a filtration mechanism and an agitation mechanism, wherein the filtration mechanism is used to purify and filter the bleaching liquid, and the agitation mechanism is used to enhance the fluidity of the bleaching liquid and improve the bleaching uniformity.

[0021] Please see Figures 1-4 The filtration mechanism includes a suction pump 2. The inlet end of the suction pump 2 is connected to the bottom of the bleaching tank 1 through a pipe, which can draw in the mixed liquid (containing impurities) at the bottom of the bleaching tank 1. The outlet end of the suction pump 2 is connected to a container 3 through a pipe. The container 3 is vertically arranged and fixedly connected to the bottom wall of the bleaching tank 1.

[0022] Please see Figure 4A filter cylinder 4 is coaxially fixed inside the holding cylinder 3. One end of the filter cylinder 4 is open, and multiple filter holes 41 are evenly distributed on its peripheral wall. The diameter of the filter holes 41 can be set according to the size of common impurities to intercept impurities such as fiber debris. The inner cavity of the filter cylinder 4 is connected to the inside of the bleaching tank 1 through a stirring mechanism. The filtered clean bleach can be returned to the bleaching tank 1. An end cap 5 is detachably connected to the bottom of the holding cylinder 3 by bolts. The end cap 5 is used to close the bottom of the holding cylinder 3. After opening, the impurities intercepted by the filter cylinder 4 can be cleaned.

[0023] Please see Figure 3 The agitation mechanism includes a rotating cylinder 6, which is coaxially arranged with the filter cylinder 4 and rotatably connected to the open end of the filter cylinder 4 via bearings. The rotating cylinder 6 is open at both ends, and its inner cavity is connected to the inner cavity of the filter cylinder 4, so as to receive the filtered bleach. A radial cylinder 7 is fixedly connected to the end of the rotating cylinder 6 away from the filter cylinder 4. The radial cylinder 7 is horizontally arranged, and its inner cavity is connected to the inner cavity of the rotating cylinder 6. Multiple nozzles 71 are evenly arranged on the side of the radial cylinder 7 away from the filter cylinder 4 (facing the inside of the bleaching tank 1). The nozzles 71 can spray the bleach at a certain pressure to form convection and agitate the liquid in the bleaching tank 1.

[0024] Please see Figure 2 To drive the rotating drum 6 to rotate, a motor 8 is fixedly installed at the bottom of the bleaching tank 1. The output shaft of the motor 8 is vertically upward and coaxially fixed with a first gear 81. A second gear ring 61 is coaxially fixed to the outer wall of the rotating drum 6. The second gear ring 61 meshes with the first gear 81. After the motor 8 is started, it can drive the rotating drum 6 and the radial drum 7 to rotate through gear transmission, so that the spray direction of the nozzle 71 changes continuously, enhancing the stirring effect.

[0025] Please see Figure 4 To facilitate the cleaning of impurities adhering to the outer wall of the filter cylinder 4, a cleaning ring 9 is vertically slidably connected inside the holding cylinder 3. The outer wall of the cleaning ring 9 is in contact with the inner wall of the holding cylinder 3, and the inner wall is in contact with the outer wall of the filter cylinder 4. Its material can be rubber or wear-resistant plastic. A sliding rod 10 is fixed to the lower end face of the cleaning ring 9. A sliding hole 51 adapted to the sliding rod 10 is opened on the end cap 5. The sliding rod 10 passes through the sliding hole 51 and can slide vertically along it. A compression spring 11 is sleeved on the outer wall of the sliding rod 10. The upper end of the compression spring 11 is fixed to the lower end face of the cleaning ring 9, and the lower end is fixed to the upper end face of the end cap 5. Under normal conditions, the compression spring 11 drives the cleaning ring 9 to be located at the upper part of the holding cylinder 3. When it is necessary to clean the outer wall of the filter cylinder 4, the operator turns off the suction pump 2 and pulls down the sliding rod 10 to make the cleaning ring 9 move downward. The inner wall of the cleaning ring 9 scrapes away impurities from the outer wall of the filter cylinder 4, thereby maintaining the permeability of the filter holes 41. The operator continues to pull down the sliding rod 10 to collect the scraped impurities onto the end cover 5. In order to ensure that the cleaning ring 9 can move downward smoothly, multiple through holes 12 can be opened on the end face of the cleaning ring 9, and a filter screen is installed in each through hole 12. Then the operator removes the end cover 5 and cleans the collected impurities.

[0026] The implementation principle of a pretreatment device for polyester-cotton fabric production according to an embodiment of this application is as follows: The suction pump 2 draws the bleach containing impurities from the bottom of the bleaching tank 1 into the holding cylinder 3. The bleach enters the filter cylinder 4 and is filtered through the filter holes 41 on the periphery of the filter cylinder 4. The impurities are trapped inside the filter cylinder 4. The filtered clean bleach enters the inner cavity of the filter cylinder 4 and flows into the rotating cylinder 6, then into the radial cylinder 7, and finally is sprayed out through the nozzle 71 on the radial cylinder 7, stirring the liquid in the bleaching tank 1. When the motor 8 starts, it drives the rotating cylinder 6 and the radial cylinder 7 to rotate through the meshing transmission of the first gear 81 and the second gear ring 61, so that the spray direction of the nozzle 71 changes continuously, enhancing the stirring effect and improving the bleaching uniformity. When it is necessary to clean the impurities attached to the outer wall of the filter cartridge 4, turn off the suction pump 2, pull down the sliding rod 10, and drive the cleaning ring 9 to move downward. The inner wall of the cleaning ring 9 scrapes away the impurities on the outer wall of the filter cartridge 4 and collects the impurities into the end cover 5. Then the operator removes the end cover 5, cleans the collected impurities, and reinstalls the end cover 5 after cleaning.

[0027] 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 pretreatment device for polyester-cotton fabric production, comprising a bleaching tank, characterized in that: The bleaching tank is equipped with a filtration mechanism and an agitation mechanism. The filtration mechanism includes a suction pump connected to the bottom of the bleaching tank, and the outlet end of the suction pump is connected to a container. The container is fixedly connected to the bleaching tank. A filter cylinder is coaxially fixed inside the container, and the peripheral wall of the filter cylinder is provided with multiple filter holes. The inner cavity of the filter cylinder is connected to the inside of the bleaching tank through the agitation mechanism. An end cap is detachably connected to the bottom of the container.

2. The pretreatment device for polyester-cotton fabric production according to claim 1, characterized in that: The agitation mechanism includes a rotating cylinder that is rotatably connected to the filter cylinder on the same axis; the rotating cylinder has openings at both ends, and the inner cavity of the rotating cylinder is in communication with the inner cavity of the filter cylinder.

3. The pretreatment device for polyester-cotton fabric production according to claim 2, characterized in that: A radial cylinder is fixedly installed at the end of the rotating cylinder away from the filter cylinder, and the inner cavity of the radial cylinder is connected to the inner cavity of the rotating cylinder.

4. The pretreatment device for polyester-cotton fabric production according to claim 3, characterized in that: The radial cylinder has multiple nozzles on the side away from the filter cylinder.

5. The pretreatment device for polyester-cotton fabric production according to claim 1, characterized in that: A motor is fixedly installed at the bottom of the bleaching tank, and a first gear is fixedly installed coaxially on the output shaft of the motor.

6. The pretreatment device for polyester-cotton fabric production according to claim 2, characterized in that: The outer wall of the rotating cylinder is coaxially fixed with a second toothed ring that meshes with the first gear.

7. The pretreatment device for polyester-cotton fabric production according to claim 1, characterized in that: A cleaning ring is vertically slidably connected inside the container; the outer wall of the cleaning ring is in contact with the inner wall of the container, and the inner wall of the cleaning ring is in contact with the outer wall of the filter cylinder.

8. The pretreatment device for polyester-cotton fabric production according to claim 7, characterized in that: A sliding rod is fixedly provided on the lower end face of the cleaning ring, and a sliding hole adapted to the sliding rod is provided on the end cap.

9. A pretreatment device for polyester-cotton fabric production according to claim 8, characterized in that: A compression spring is fitted on the outer wall of the sliding rod. The upper part of the compression spring is fixedly connected to the lower end face of the cleaning ring, and the lower part of the compression spring is fixedly connected to the upper end face of the end cap.

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