A kind of denim fabric production process

Abstract

The invention discloses a denim fabric production process, which is completed by using a denim fabric production equipment. The denim fabric production equipment includes a dyeing tank, an upper guide roller is provided above the inside of the dyeing tank, a lower guide roller is provided below the inside of the dyeing tank, a filtering and cleaning component arranged in an inclined shape is provided above the middle of the dyeing tank, a water squeezing roller group is provided at the top of one end of the dyeing tank, a processing table is fixedly connected to one end of the dyeing tank, and a conveying roller group is provided at one end of the processing table close to the dyeing tank. In the denim fabric production equipment, two support plates A can provide support for two groups of support plates B, the extrusion area squeezes out the pigment in the passing denim fabric, and the impurities are separated from the denim fabric body by the extrusion force, so as to complete the filtering of the denim fabric when the pigment is impregnated, and the protrusion can expand the inward wrinkled area of ​​the denim fabric, cooperate with the liquid pigment extruded from the front side of the wrinkled area to impregnate the wrinkled area, so as to achieve the whole fabric impregnation.

Description

Technical Field

[0001] The invention relates to the technical field of denim fabric production, in particular to a denim fabric production process. Background Art

[0002] Denim fabric is a thicker yarn-dyed warp twill fabric, mainly indigo blue, but now also available in a variety of different colors, which can be used to complement the production of clothing of different colors.

[0003] Denim fabric is relatively thick and prone to wrinkles and overlapping areas, which makes it difficult for the pigment to penetrate into the wrinkled and thickened fabric areas during dyeing. As a result, the overall fabric shows that there are areas of dye leakage and uneven dyeing after production. In addition, impurities will accumulate on the surface of the fabric. When the denim fabric is dyed, the impurities will adhere to the surface of the denim fabric. The impurities will affect the production quality of the denim fabric, forming defects on the denim fabric and affecting the quality of subsequent denim clothing.

[0004] Therefore, it is necessary to propose a denim fabric production process to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a denim fabric production process to solve at least one technical problem raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] As a solution of the present invention: a denim fabric production process, the denim fabric production process is completed by the following denim fabric production equipment, the denim fabric production equipment includes a dyeing tank, an upper guide roller is provided on the upper part of the dyeing tank, a lower guide roller is provided on the lower part of the dyeing tank, a filtering and cleaning component arranged in an inclined shape is provided on the upper part of the middle of the dyeing tank, a squeezing roller group is provided on the top of one end of the dyeing tank, a processing table is fixedly connected to one end of the dyeing tank, and a conveying roller group is provided on the end of the processing table close to the dyeing tank;

[0008] The filter cleaning assembly comprises two support plates A, two groups of support plates B are fixedly connected between the two support plates A, elastic members are fixedly connected to the inner sides of the two groups of support plates B, and an extrusion plate is fixedly connected to the inner side of the elastic member, and an extrusion zone is formed between the two extrusion plates, the distance between which is smaller than that of the denim fabric;

[0009] The inner end of the extrusion plate is provided with a protrusion, and the outer side of the extrusion plate is in a curved surface shape.

[0010] As a further solution of the present invention: vertical plates supporting guide rollers are provided at the front and rear ends of the conveying roller group;

[0011] The squeezing roller group is flush with the conveying roller group.

[0012] As a further solution of the present invention: an additional plate is fixedly installed on the outer sides of the two support plates B, and a guide roller is rotatably connected between the two additional plates.

[0013] As a further solution of the present invention: a connecting plate is fixedly installed below the support plate B at the bottom, and an impurity collecting groove corresponding to the bottom of the extrusion plate is provided on the connecting plate.

[0014] As a further solution of the present invention: the impurity collecting tank is detachably mounted on the connecting plate;

[0015] The connecting plate is provided with a mounting opening, and one side of the impurity collecting tank is fixedly connected with a mounting head adapted to the mounting opening.

[0016] As a further solution of the present invention: the impurity collection tank comprises a frame, a cardboard is fixedly connected to the inner side of the frame, and filter components are placed on two of the cardboards;

[0017] The filter assembly includes a filter screen A and a filter screen B, wherein the mesh size of the filter screen A is greater than that of the filter screen B;

[0018] The four corners of the lower surface of the filter screen B are fixedly connected with separation columns.

[0019] As a further solution of the present invention: a plurality of lifting assemblies A are provided at both ends of the filtering and cleaning assembly, and the lifting assemblies A include support blocks fixedly connected to the front and rear sides of the dyeing tank, a cylinder A is fixedly installed in the middle of the support block, and a supporting block is fixedly connected to the telescopic end of the top of the cylinder A, and the inner sides of the two supporting blocks are respectively fixedly connected to the two ends of the filtering and cleaning assembly.

[0020] As a further solution of the present invention: a limiting channel is provided on the support block, and a limiting column corresponding to the limiting channel is fixedly connected to the bottom of the support block.

[0021] As a further solution of the present invention: the front and rear ends of the dyeing tank are provided with lifting components B, and the number of the lifting components B is equal to the number of the lower guide rollers;

[0022] The lifting assembly B includes a cylinder B fixedly connected to the front and rear ends of the dyeing tank, the telescopic ends of the tops of the two cylinders B are fixedly connected with connecting heads, the inner sides of the two connecting heads are fixedly connected with supporting columns, the two ends of the bottom of the supporting columns are fixedly connected with pulling plates, the bottom of the pulling plates are fixedly connected with rotating joints, and the two rotating joints are respectively rotatably connected to the two ends of the lower guide roller.

[0023] As a further solution of the present invention: the denim fabric production process using the denim fabric production equipment includes the following steps:

[0024] S1: Pre-positioning work, two cylinders A drive two supporting blocks to descend, lower the height of the filter cleaning assembly, and cylinder B drives the connector and the support column to rise, shortening the distance between the upper guide roller and the lower guide roller, so that the denim fabric can be wound around the upper guide roller and the lower guide roller in sequence. When the denim fabric is wound to the front side of the filter cleaning assembly, one end of the denim fabric passes through the middle of the two groups of squeezing plates, continues to bypass the guide roller, and then winds around the upper guide roller and the lower guide roller located at the rear side of the filter cleaning assembly, and then winds around the middle of the squeezing roller group, and then passes through the conveying roller group, completing the pre-positioning work of the denim fabric to be dyed;

[0025] S2: Pigment preparation: After the denim fabric is wound on the dyeing tank, the filter cleaning assembly, the squeeze roller group and the conveying roller group, the color-matched pigment is poured into the dyeing tank at the same time. The cylinder A drives the filter cleaning assembly to reset its height, and the cylinder B drives the support column and the lower guide roller to reset, so that the denim fabric is immersed in the liquid pigment.

[0026] S3: Denim fabric dip dyeing process, the denim fabric is continuously transported forward by the traction conveying of the conveying roller group, and the denim fabric continuously fed into the dyeing tank is dip dyed by the dyeing tank;

[0027] S4: Extrusion, expansion and deepening of color. In the process of continuous forward conveyance of the denim fabric, for the denim fabric passing through the filtering and cleaning component, the pigment in the denim fabric passing through the squeezing area between the two squeezing plates is squeezed out by the action of the elastic member in the filtering and cleaning component; at the same time, the wrinkled area on the surface of the denim fabric can be expanded by the cooperation of the protruding part and the outer curved surface structure of the squeezing plate, and under the extrusion condition of the pigment on the front side of the wrinkled area, the part of the wrinkle to be dyed is covered by the pigment on the front side to complete the dyeing of the dyed area; at the same time, under the action of the squeezing force of the squeezing plate, the dyeing effect on the inside of the denim fabric is improved;

[0028] S5: Elasticity adjustment and efficiency enhancement. During the dyeing process, the filter cleaning component can be driven upward by cylinder A to increase the tightness of the denim fabric in the filter cleaning component area, thereby increasing the dyeing depth of the liquid dye into the middle of the denim fabric;

[0029] It can also cooperate with the lifting component B, and drive the lower guide roller to continue to move downward through the cylinder B in the lifting component B, thereby increasing the distance between the upper guide roller and the lower guide roller, and improving the immersion effect of the middle part of the denim fabric;

[0030] The cylinder B can also drive the lower guide roller to move downward and then upward again to change and adjust the distance between the upper guide roller and the lower guide roller, so that the denim fabric is tightened and then relaxed again, so as to improve the absorption efficiency of the denim fabric to the dye, make the overall color of the denim fabric more uniform, and thus enhance the processing quality of the denim fabric;

[0031] S6: impurity cleaning. Under the extrusion cooperation with the elastic member, the floccules and other impurities filtered by the extrusion plate are collected in the impurity collecting groove. When cleaning is needed, the impurity collecting groove or the filter screen B and filter screen A inside it are removed for cleaning to prevent the impurity collecting groove from being blocked.

[0032] Compared with the prior art, the present invention provides a denim fabric production process, which has the following beneficial effects:

[0033] 1. The production equipment of the denim fabric, by the cooperation of the upper guide roller and the lower guide roller, makes the denim fabric in a wave shape and sequentially wind around the upper guide roller and the lower guide roller. After winding around the upper guide roller and the lower guide roller on the front side of the filter cleaning component, the fabric passes through the middle of the filter cleaning component, and then winds around the upper guide roller and the lower guide roller on the rear side of the filter cleaning component. The dyeing tank is provided with liquid pigment for dyeing the denim fabric. The conveying roller group is driven by a motor. Under the traction of the conveying roller group, the denim fabric is continuously immersed in the dyeing tank for dyeing, and the denim fabric processed by the filter cleaning component and the squeezing roller group is continuously conveyed to the processing table for subsequent processing.

[0034] 2. The two support plates A can provide support for the two groups of support plates B. The mutual distance between the extrusion zones is smaller than the denim fabric, so that the pigment in the passing denim fabric can be squeezed outward. At the same time, the impurities on the upper and lower surfaces of the denim fabric can be separated from the denim fabric body through the extrusion force, thereby completing the filtration of the denim fabric when dyeing the pigment, so as to reduce the impact of impurities on the production quality of the denim fabric.

[0035] 3. The setting of the protrusion can expand the wrinkled area of ​​the denim fabric inward, so that the liquid pigment squeezed out from the front side of the wrinkled area can be used to dye the wrinkled area immediately, so as to achieve the overall dyeing of the denim fabric, avoiding the problem of partial undyed defects after the denim fabric is dyed, resulting in the need for re-dyeing and wasting a lot of manpower and material resources.

[0036] 4. The guide roller can guide and support the denim fabric removed from the extrusion area, avoiding the problem of severe wear of the denim fabric by the corners of the support plate B and the extrusion plate, and improving the overall quality of the denim fabric after production and processing.

[0037] 5. The impurity collection tank collects the impurities squeezed out from the upper and lower surfaces of the denim fabric by the extrusion plate to prevent the impurities from falling back into the dyeing tank. The impurity collection tank is installed on the connecting plate by plugging, which is easy to disassemble and assemble. The filter assembly can collect impurities and make the liquid pigment squeezed out of the denim fabric by the extrusion plate fall back into the dyeing tank to avoid pigment waste. The filter mesh A and filter mesh B in the filter assembly can collect a large amount of flocculent impurities accumulated on the extrusion plate at the top of the filter mesh B located above, and fine impurities are collected by the filter mesh A located below. The four corners of the lower surface of the filter mesh B are fixedly connected with separation columns. When the impurities on the filter mesh A and filter mesh B accumulate to a certain amount, the filter mesh A and filter mesh B can be removed and cleaned immediately to prevent the impurities from clogging the filter mesh A and filter mesh B.

[0038] 6. The lifting component A can adjust the height of the filtering and cleaning component to make the denim fabric in the filtering and cleaning component area tighter, thereby improving the extrusion efficiency of the liquid pigment inside the denim fabric by the extrusion plate. At the same time, under the extrusion of the denim fabric by the extrusion plate and the squeezing roller group, the dyeing effect inside the denim fabric with a certain thickness can be improved, thereby improving the dyeing effect of the denim fabric.

[0039] 7. The setting of lifting component B can adjust the height of multiple lower guide rollers synchronously, so that the distance between the lower guide roller and the upper guide roller can be increased or decreased. When increased, the denim fabric to be dyed can be kept taut, so that the dye can be further immersed into the denim fabric. When the distance between the lower guide roller and the upper guide roller is shortened, it can be convenient for the denim fabric to be wound around the lower guide roller and the upper guide roller. At the same time, after the cylinder B drives the lower guide roller to move downward, it can move upward again to change and adjust the distance between the upper guide roller and the lower guide roller, so that the denim fabric can be relaxed again after being tightened, so as to improve the absorption efficiency of the denim fabric to the dye, make the overall color of the denim fabric more uniform, and thus enhance the processing quality of the denim fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the production equipment of the denim fabric of the present invention;

[0041] Figure 2 It is a schematic diagram of a top view of the structure of the production equipment of the denim fabric of the present invention;

[0042] Figure 3 The production equipment of the denim fabric of the present invention is along Figure 2 Schematic diagram of the cross-sectional structure along the AA section line;

[0043] Figure 4 The production equipment of the denim fabric of the present invention Figure 3 Schematic diagram of the enlarged structure of the middle A area;

[0044] Figure 5It is a schematic diagram of the internal structure of the dyeing tank of the production equipment of denim fabric of the present invention;

[0045] Figure 6 It is a schematic diagram of the connection structure of the connection plate and the impurity collection tank in the production equipment of the denim fabric of the present invention;

[0046] Figure 7 It is a schematic diagram of the connection structure between the lifting component A and the filtering and cleaning component in the production equipment of denim fabrics of the present invention;

[0047] Figure 8 It is a schematic diagram of the internal structure of the filtering and cleaning component in the production equipment of denim fabrics of the present invention;

[0048] Fig. 9 It is a schematic diagram of the impurity collection tank structure in the production equipment of denim fabric of the present invention;

[0049] Fig.10 It is a schematic diagram of the structure of the lifting component B in the production equipment of denim fabrics of the present invention;

[0050] Fig.11 The production equipment of the denim fabric of the present invention Figure 5 Schematic diagram of the enlarged structure of area B in the middle.

[0051] In the figure: 1. dyeing tank; 2. upper guide roller; 3. lower guide roller; 4. filter cleaning component; 5. water squeezing roller group; 6. processing table; 7. vertical plate; 8. conveying roller group; 9. support plate A; 10. support plate B; 11. elastic member; 12. extrusion plate; 13. connecting plate; 14. impurity collecting tank; 15. installation port; 16. installation head; 17. additional plate; 18. guide roller; 19. frame; 20. card plate; 21. filter A; 22. filter B; 23. lifting component A; 24. support block; 25. supporting block; 26. cylinder A; 27. limit channel; 28. limit column; 29. ​​lifting component B; 30. cylinder B; 31. connector; 32. support column; 33. pull plate; 34. rotating joint; 35. guide plate; 36. limit movable groove; 37. protrusion. DETAILED DESCRIPTION

[0052] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0053] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from the description. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0054] See also Figure 1-11 As shown, in one embodiment of the present application, a denim fabric production process is provided, and the denim fabric production process is completed by the following denim fabric production equipment, the denim fabric production equipment, including a dyeing tank 1, an upper guide roller 2 is provided on the upper part of the interior of the dyeing tank 1, a lower guide roller 3 is provided on the lower part of the interior of the dyeing tank 1, a filtering and cleaning component 4 arranged in an inclined shape is provided on the upper middle part of the dyeing tank 1, a water squeezing roller group 5 is provided on the top of one end of the dyeing tank 1, a processing table 6 is fixedly connected to one end of the dyeing tank 1, a conveying roller group 8 is provided on the end of the processing table 6 close to the dyeing tank 1, and vertical plates 7 supporting the guide rollers 18 are provided at the front and rear ends of the conveying roller group 8, and the water squeezing roller group 5 is flush with the conveying roller group 8.

[0055] In this embodiment, liquid pigment for dyeing denim fabric is provided in the dyeing pool 1. The cooperation of the upper guide roller 2 and the lower guide roller 3 makes the denim fabric wrap around the upper guide roller 2 and the lower guide roller 3 in sequence in a wave shape. After the fabric wraps around the upper guide roller 2 and the lower guide roller 3 on the front side of the filter cleaning component 4, it passes through the middle part of the filter cleaning component 4, and then wraps around the upper guide roller 2 and the lower guide roller 3 on the rear side of the filter cleaning component 4.

[0056] The conveying roller group 8 is driven by a motor. Under the traction of the conveying roller group 8, the denim fabric is continuously immersed in the dyeing tank 1 for dyeing, and the denim fabric processed by the filtering and cleaning component 4 and the squeezing roller group 5 is continuously conveyed to the processing table 6 for subsequent processing.

[0057] Please refer to Figure 1-6 As shown, the filtering and cleaning assembly 4 includes two support plates A9, two groups of support plates B10 are fixedly connected between the two support plates A9, elastic members 11 are fixedly connected to the inner sides of the two groups of support plates B10, and an extrusion plate 12 is fixedly connected to the inner side of the elastic member 11, and an extrusion area is formed between the two extrusion plates 12, the distance between which is smaller than that of the denim fabric.

[0058] In this embodiment, two support plates A9 provide support for two groups of support plates B10, and the mutual distance between the extrusion zones is smaller than the denim fabric, so that the pigment in the passing denim fabric can be squeezed outward, and at the same time, the impurities on the upper and lower surfaces of the denim fabric can be separated from the denim fabric body by the extrusion force, thereby completing the filtration of the denim fabric when dyeing the pigment, so as to reduce the influence of impurities on the production quality of the denim fabric.

[0059] Furthermore, a protrusion 37 is provided at the inner end of the extrusion plate 12. Figure 6As shown, the outer side of the extrusion plate 12 is in a curved surface. The protrusion 37 can be used to expand the wrinkled area of ​​the denim fabric, so that the liquid pigment squeezed out from the front side of the wrinkled area can be used to dye the wrinkled area, so as to achieve the overall dyeing of the denim fabric, thereby avoiding the problem of partial undyed defects of the denim fabric after dyeing, which requires dyeing again and wastes a lot of manpower and material resources.

[0060] Furthermore, an additional plate 17 is fixedly installed on the outer sides of the two support plates B10, and a guide roller 18 is rotatably connected between the two additional plates 17. Figure 8 As shown, the guide roller 18 can guide and support the denim fabric removed from the squeezing area, thereby avoiding the problem of the corners of the support plate B10 and the squeezing plate 12 causing significant wear to the denim fabric.

[0061] Please refer to 4. Figure 6 , Figure 7 and Fig. 9 As shown, a connecting plate 13 is fixedly installed below the support plate B10 at the bottom, and an impurity collecting groove 14 corresponding to the bottom of the extrusion plate 12 is provided on the connecting plate 13 .

[0062] The impurities squeezed out from the upper and lower surfaces of the denim fabric by the squeezing plate 12 are collected through the impurity collecting groove 14 to prevent the impurities from falling back into the dyeing tank 1 .

[0063] Please continue reading Figure 6 and Figure 7 As shown, the impurity collecting tank 14 is detachably mounted on the connecting plate 13, and the impurity collecting tank 14 can be removed for cleaning.

[0064] Specifically, a mounting opening 15 is provided on the connecting plate 13, and a mounting head 16 adapted to the mounting opening 15 is fixedly connected to one side of the impurity collecting tank 14, so that the impurity collecting tank 14 is installed on the connecting plate 13 by plugging, which is convenient for assembly and disassembly. The mounting opening 15 passes through the connecting plate 13, and the length of the mounting head 16 is greater than the depth of the mounting opening 15, which in turn improves the stability of the impurity collecting tank 14 after plugging.

[0065] Furthermore, if Figure 6 , Figure 7 and Fig. 9As shown, the impurity collection tank 14 includes a frame 19, and a card plate 20 is fixedly connected to the inner side of the frame 19. A filter assembly is placed on the two card plates 20. The filter assembly can complete the collection of impurities and enable the liquid pigment squeezed out of the denim fabric by the extrusion plate 12 to fall back into the dyeing pool 1 to avoid the waste of pigment. The filter assembly includes a filter screen A21 and a filter screen B22. The mesh number of the filter screen A21 is larger than that of the filter screen B22. Through the double-layer filter screen A21 and filter screen B22, a large amount of flocculent impurities accumulated on the extrusion plate 12 can be collected on the top of the filter screen B22 located above, and fine impurities are collected by the filter screen A21 located below.

[0066] Furthermore, in order to prevent easy clogging by impurities, separation columns are fixedly connected to the four corners of the lower surface of the filter screen B22, so that the cavity formed between the filter screen A21 and the filter screen B22 can be utilized to increase the filter assembly's capacity to absorb impurities.

[0067] After a certain amount of impurities are collected on the filter screen A21 and the filter screen B22, the filter screen B22 and the filter screen A21 can be removed respectively to complete the cleaning of the impurities.

[0068] Please refer to Figure 5 , Figure 7 and Figure 8 As shown, a plurality of lifting assemblies A23 are provided at both ends of the filtering and cleaning assembly 4, and the lifting assembly A23 includes a support block 24 fixedly connected to the front and rear sides of the dyeing tank 1, a cylinder A26 is fixedly installed in the middle of the support block 24, and a supporting block 25 is fixedly connected to the telescopic end of the top of the cylinder A26, and the inner sides of the two supporting blocks 25 are fixedly connected to the two ends of the filtering and cleaning assembly 4 respectively.

[0069] In this embodiment, the height of the filter cleaning component 4 can be adjusted by the lifting component A23. During the dyeing process of the denim fabric, the height of the filter cleaning component 4 can be adjusted to make the denim fabric in the area of ​​the filter cleaning component 4 more tight, thereby improving the extrusion efficiency of the liquid pigment inside the denim fabric by the extrusion plate 12. At the same time, under the extrusion of the denim fabric by the extrusion plate 12 and the water squeezing roller group 5, the dyeing effect inside the denim fabric with a certain thickness can be improved, thereby improving the dyeing effect of the denim fabric.

[0070] Among them, a limiting channel 27 can be opened on the support block 24, and a limiting column 28 corresponding to the limiting channel 27 is fixedly connected to the bottom of the supporting block 25, thereby improving the stability of the two cylinders A26 driving the filter cleaning assembly 4 to move up and down.

[0071] Please refer to Figure 5 , Fig.10 and Fig.11As shown, lifting components B29 are provided at the front and rear ends of the dyeing tank 1, and the number of the lifting components B29 is equal to the number of the lower guide rollers 3. By setting the lifting components B29, the heights of the multiple lower guide rollers 3 can be adjusted synchronously, so that the distance between the lower guide rollers 3 and the upper guide rollers 2 is increased or shortened. When the distance is increased, the denim fabric to be dyed can be kept taut, so that the dye can be further immersed in the denim fabric. When the distance between the lower guide rollers 3 and the upper guide rollers 2 is shortened, it is convenient for the denim fabric to be wound around the lower guide rollers 3 and the upper guide rollers 2.

[0072] Please continue reading Fig.10 and Fig.11 As shown, specifically, the lifting component B29 includes a cylinder B30 fixedly connected to the front and rear ends of the dyeing tank 1, the telescopic ends of the two tops of the cylinders B30 are fixedly connected with connecting heads 31, the inner sides of the two connecting heads 31 are fixedly connected with support columns 32, the two ends of the bottom of the support columns 32 are fixedly connected with pull plates 33, the bottom of the pull plates 33 is fixedly connected with rotating joints 34, and the two rotating joints 34 are rotatably connected to the two ends of the lower guide roller 3 respectively.

[0073] In this embodiment, the lifting component B29 drives the support column 32 to move up and down through the cylinder B30, thereby controlling the horizontal height of the lower guide roller 3. The two ends of the lower guide roller 3 are rotatably supported by two rotating joints 34. During the up and down movement of the support column 32, the forward movement of the denim fabric by the lower guide roller 3 is not affected.

[0074] Among them, a guide plate 35 corresponding to the lifting component B29 is fixedly connected to the front and rear sides of the dyeing tank 1, and a limiting movable groove 36 adapted to the support column 32 is opened in the middle of the guide plate 35, and the limiting movable groove 36 provides a limit for the up and down movement of the support column 32.

[0075] Please combine Figure 1-11 As shown, the denim fabric production process using the denim fabric production equipment includes the following steps:

[0076] S1: Pre-work, two cylinders A26 drive two support blocks 25 to descend, lower the height of the filter cleaning assembly 4, and at the same time drive the connecting head 31 and the support column 32 to rise through the cylinder B30, shortening the distance between the upper guide roller 2 and the lower guide roller 3, so that the denim fabric is wound around the upper guide roller 2 and the lower guide roller 3 in sequence. When the denim fabric is wound to the front side of the filter cleaning assembly 4, one end of the denim fabric passes through the middle of the two groups of squeezing plates 12, continues to bypass the guide roller 18, and then winds around the upper guide roller 2 and the lower guide roller 3 located at the rear side of the filter cleaning assembly 4, and then winds around the middle of the squeezing roller group 5, and then passes through the conveying roller group 8, completing the pre-work of the denim fabric to be dyed;

[0077] S2: Pigment preparation. After the denim fabric is wound on the dyeing tank 1, the filter cleaning assembly 4, the squeezing roller group 5 and the conveying roller group 8, the dyeing tank 1 is filled with the prepared pigment. The cylinder A26 drives the filter cleaning assembly 4 to reset its height. The cylinder B30 drives the support column 32 and the lower guide roller 3 to reset, so that the denim fabric is immersed in the liquid pigment.

[0078] S3: the denim fabric is dip-dyed, the denim fabric is continuously transported forward by the traction conveying of the conveying roller group 8, and the denim fabric continuously fed into the dyeing tank 1 is dip-dyed by the dyeing tank 1;

[0079] S4: Extruding, expanding and deepening the color. In the process of continuous forward conveying of the denim fabric, for the denim fabric passing through the filtering and cleaning component 4, the pigment in the denim fabric passing through the squeezing area between the two squeezing plates 12 is squeezed out by the action of the elastic member 11 in the filtering and cleaning component 4; at the same time, the wrinkled area on the surface of the denim fabric can be expanded by the cooperation of the protruding portion 37 and the outer curved surface structure of the squeezing plate 12, and under the extrusion condition of the pigment on the front side of the wrinkled area, the part of the wrinkle to be dyed is covered by the pigment on the front side, so as to complete the dyeing of the dyed area; at the same time, under the action of the squeezing force of the squeezing plate 12, the dyeing effect on the inside of the denim fabric is improved;

[0080] S5: elasticity adjustment efficiency enhancement. During the dyeing process, the cylinder A26 can drive the filter cleaning component 4 to move upward to increase the tightness of the denim fabric in the area of ​​the filter cleaning component 4, thereby increasing the dyeing depth of the liquid dye into the middle of the denim fabric;

[0081] It can also cooperate with the lifting component B29 to drive the lower guide roller 3 to continue to move downward through the cylinder B30 in the lifting component B29, thereby increasing the distance between the upper guide roller 2 and the lower guide roller 3 and improving the immersion effect of the middle part of the denim fabric;

[0082] The cylinder B30 can also drive the lower guide roller 3 to move downward and then upward again to change and adjust the distance between the upper guide roller 2 and the lower guide roller 3, so that the denim fabric is tightened and then relaxed again, so as to improve the absorption efficiency of the denim fabric to the dye, make the overall color of the denim fabric more uniform, and thus enhance the processing quality of the denim fabric;

[0083] S6: impurity cleaning. Under the extrusion cooperation with the elastic member 11, the floccules and other impurities filtered by the extrusion plate 12 are collected in the impurity collecting groove 14. When cleaning is needed, the impurity collecting groove 14 or the filter screen B22 and the filter screen A21 inside it are removed for cleaning to prevent the impurity collecting groove 14 from being blocked.

[0084] When the present invention is used:

[0085] First, two cylinders A26 are used to drive two supporting blocks 25 to descend, thereby lowering the height of the filter cleaning assembly 4. At the same time, cylinder B30 is used to drive the connecting head 31 and the supporting column 32 to rise, thereby shortening the distance between the upper guide roller 2 and the lower guide roller 3, so as to facilitate winding the denim fabric around the upper guide roller 2 and the lower guide roller 3 in sequence. When the denim fabric is wound around the front side of the filter cleaning assembly 4, one end of the denim fabric passes through the middle of the two groups of squeezing plates 12, and then continues to bypass the guide roller 18, and then winds around the upper guide roller 2 and the lower guide roller 3 located at the rear side of the filter cleaning assembly 4, and then winds around the middle of the squeezing roller group 5, and then passes through the conveying roller group 8, thereby completing the pre-placement work of the denim fabric to be dyed.

[0086] Then, the color-matched pigment is poured into the dyeing tank 1, the cylinder A26 drives the filter cleaning component 4 to reset its height, and the cylinder B30 drives the support column 32 and the lower guide roller 3 to reset, so that the denim fabric is immersed in the liquid pigment.

[0087] Then, the denim fabric is continuously conveyed forward by the traction conveying of the conveying roller group 8. In this process, under the action of the elastic member 11 in the filtering and cleaning component 4, the pigment in the denim fabric passing through the squeezing area between the two squeezing plates 12 is squeezed out. At the same time, if there is a wrinkle area on the surface of the denim fabric, the wrinkle area is unfolded by the cooperation of the protrusion 37 and the outer curved surface structure of the squeezing plate 12, and under the extrusion condition of the pigment on the front side of the wrinkle area, the wrinkled part to be dyed is covered by the pigment on the front side to complete the dyeing of the dyed area. At the same time, under the action of the squeezing force of the squeezing plate 12, the dyeing effect on the inside of the denim fabric is improved, thereby improving the production and processing quality of the denim fabric.

[0088] Among them, according to the needs of use, during the dyeing process, the cylinder A26 can be used to drive the filter cleaning component 4 to move upward to increase the tightness of the denim fabric in the area of ​​the filter cleaning component 4, thereby increasing the dyeing depth of the liquid dye into the middle of the denim fabric; it can also cooperate with the lifting component B29, and the cylinder B30 in the lifting component B29 can be used to drive the lower guide roller 3 to continue to move downward, increase the distance between the upper guide roller 2 and the lower guide roller 3, so as to improve the immersion effect of the middle of the denim fabric; in addition, the cylinder B30 can be used to drive the lower guide roller 3 to move downward and then move upward again, so as to change and adjust the distance between the upper guide roller 2 and the lower guide roller 3, so that the denim fabric is tightened and then relaxed again, so as to improve the absorption efficiency of the denim fabric to the dye, make the overall color of the denim fabric more uniform, and thereby enhance the processing quality of the denim fabric.

[0089] Finally, in cooperation with the elastic member 11, the floc impurities and other impurities filtered by the extrusion plate 12 are collected in the impurity collecting groove 14, and impurities of different sizes are collected by the filter screen B22 and the filter screen A21 in the impurity collecting groove 14. When cleaning is required, the filter screen B22 and the filter screen A21 are removed for cleaning, or the impurity collecting groove 14 is disassembled from the connecting plate 13 for cleaning to prevent the impurity collecting groove 14 from being blocked.

[0090] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A denim fabric production process, the denim fabric production process is completed by using the following denim fabric production equipment, the denim fabric production equipment comprises a dyeing tank (1), an upper guide roller (2) is provided at the upper part of the dyeing tank (1), and a lower guide roller (3) is provided at the lower part of the dyeing tank (1), characterized in that: A filtering and cleaning assembly (4) arranged in an inclined shape is provided above the middle of the dyeing tank (1); a water squeezing roller group (5) is provided at the top of one end of the dyeing tank (1); a processing table (6) is fixedly connected to one end of the dyeing tank (1); and a conveying roller group (8) is provided at one end of the processing table (6) close to the dyeing tank (1); The filtering and cleaning assembly (4) comprises two support plates A (9), two groups of support plates B (10) are fixedly connected between the two support plates A (9), elastic members (11) are fixedly connected to the inner sides of the two groups of support plates B (10), and an extrusion plate (12) is fixedly connected to the inner side of the elastic member (11), and an extrusion zone is formed between the two extrusion plates (12) with a mutual distance smaller than that of the denim fabric; The inner end of the extrusion plate (12) is provided with a protrusion (37), and the outer side of the extrusion plate (12) is in a curved surface shape; The squeezing roller group (5) is flush with the conveying roller group (8); an additional plate (17) is fixedly mounted on the outer sides of the two support plates B (10), and a guide roller (18) is rotatably connected between the two additional plates (17); a connecting plate (13) is fixedly mounted below the support plate B (10) at the bottom, and an impurity collecting groove (14) corresponding to the bottom of the squeezing plate (12) is provided on the connecting plate (13); the impurity collecting groove (14) is detachably mounted on the connecting plate (13); The connecting plate (13) is provided with a mounting opening (15), and a mounting head (16) adapted to the mounting opening (15) is fixedly connected to one side of the impurity collecting tank (14); the impurity collecting tank (14) comprises a frame (19), a clamping plate (20) is fixedly connected to the inner side of the frame (19), and filter components are placed on two of the clamping plates (20); The filter assembly comprises a filter screen A (21) and a filter screen B (22), wherein the mesh size of the filter screen A (21) is greater than that of the filter screen B (22); Separation columns are fixedly connected to the four corners of the lower surface of the filter screen B (22); a plurality of lifting assemblies A (23) are provided at both ends of the filter cleaning assembly (4); the lifting assemblies A (23) include support blocks (24) fixedly connected to the front and rear sides of the dyeing tank (1); a cylinder A (26) is fixedly installed in the middle of the support block (24); a supporting block (25) is fixedly connected to the telescopic end of the top of the cylinder A (26); and the inner sides of the two supporting blocks (25) are respectively fixedly connected to the two ends of the filter cleaning assembly (4).

2. A denim fabric production process according to claim 1, characterized in that: The support block (24) is provided with a limiting channel (27), and the bottom of the support block (25) is fixedly connected with a limiting column (28) corresponding to the limiting channel (27).

3. A denim fabric production process according to claim 2, characterized in that: Lifting assemblies B (29) are provided at the front and rear ends of the dyeing tank (1), and the number of the lifting assemblies B (29) is equal to the number of the lower guide rollers (3); The lifting assembly B (29) comprises a cylinder B (30) fixedly connected to the front and rear ends of the dyeing tank (1); the telescopic ends of the tops of the two cylinders B (30) are fixedly connected to connectors (31); the inner sides of the two connectors (31) are fixedly connected to support columns (32); the bottom ends of the support columns (32) are fixedly connected to pull plates (33); the bottom of the pull plates (33) are fixedly connected to rotating joints (34); and the two rotating joints (34) are respectively rotatably connected to the two ends of the lower guide roller (3).

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