Automatic roving head popper

Abstract

The application relates to the technical field of textile equipment, and discloses an automatic roving head popper, which comprises a machine base, a feeding hopper, a conveying belt, a yarn tube, a cotton stripping assembly and a carding roller arranged on the machine base, the cotton stripping assembly comprises a transmission wheel set, a transmission belt and a cotton stripping belt arranged outside the transmission belt, a plurality of first magnetic blocks are arranged on the side wall close to the transmission belt side of the cotton stripping belt, installation grooves are arranged on the side wall close to the cotton stripping belt side of the transmission belt, and a second magnetic block is arranged in each installation groove; a plurality of needle insertion grooves are arranged on the carding roller, a carding needle body is inserted into each needle insertion groove, an insertion block is arranged at the bottom of each carding needle body, an insertion groove is arranged on the side groove wall of each needle insertion groove, a limiting hole in communication with the corresponding needle insertion groove is arranged at the bottom position of each needle insertion groove, a pressing plate is slidably connected in the limiting hole, and the bottom of the pressing plate is connected with the bottom hole wall of the limiting hole through a first spring. The application has the advantages of convenient dismounting and improved production efficiency.

Description

Technical Field

[0001] This invention relates to an automatic roving head cotton carding machine, belonging to the technical field of textile equipment. Background Technology

[0002] An automatic roving head cotton carding machine is a mechanical automated device used to process cotton. Its main function is to remove impurities from cotton and arrange the cotton fibers neatly together.

[0003] In existing technology, automatic roving head cotton carding machines generally include a hopper, conveyor belt, yarn tube, stripping belt, carding roller, suction fan, and cotton collection box. During operation, after starting the cotton carding machine, cotton yarn is added to the hopper. The conveyor belt transports the cotton yarn to the yarn tube for winding. Then, the stripping belt moves in the opposite direction to the yarn tube. When the stripping belt comes into contact with the cotton yarn on the yarn tube, it can pull the cotton yarn to unwind it. The unwinded cotton yarn is transported by the stripping belt and passes through the carding roller. The carding roller can decompose the cotton yarn into usable cotton fibers. Finally, the generated cotton fibers enter the cotton collection box for collection under the action of the suction fan, so as to realize automatic cotton carding and collection.

[0004] However, this type of automatic roving head cotton carding machine has the following problems in actual use:

[0005] 1. The cotton stripping belt is usually installed on the corresponding transmission device by means of screw connection. When it is necessary to replace the cotton stripping belt, there is a problem of replacement.

[0006] 2. In traditional comb rollers, the comb needles are usually installed on the comb roller by means of threaded connection. When the comb needles are damaged and need to be replaced, there is a problem of troublesome replacement. Summary of the Invention

[0007] To address the aforementioned problems in the existing technology, the present invention provides an automatic roving head cotton carding machine.

[0008] The technical solution of the present invention is as follows:

[0009] In a first aspect, the present invention provides an automatic roving head cotton carding machine, comprising a base, a feed hopper, a conveyor belt, a yarn tube, a cotton stripping assembly, and a carding roller. A suction fan and a cotton collection box are provided on one side of the base. The cotton stripping assembly includes a drive wheel set, a drive belt connected to the drive wheel set, and a cotton stripping belt arranged around the outside of the drive belt. Multiple first magnetic blocks are provided on the side wall of the cotton stripping belt near the drive belt. The side wall of the drive belt near the cotton stripping belt has mounting slots arranged in a number and position corresponding to the first magnetic blocks. Each mounting slot contains a second magnetic block. The cotton stripping belt is connected to the corresponding mounting slot through the first magnetic blocks and attracts the corresponding second magnetic blocks to be mounted on the drive belt. The carding roller has... There are multiple pin slots, and a comb needle body is inserted into each pin slot. Each comb needle body has a symmetrically arranged insertion block at its bottom. Each pin slot has an insertion groove on both sides of its side wall that is adapted to the insertion block. When the comb needle body is inserted into the corresponding pin slot, the two insertion blocks on both sides follow through the corresponding insertion groove. Each pin slot on the comb roller has a limiting hole at its bottom that is connected to the corresponding pin slot. The diameter of the limiting hole is not less than the sum of the diameter of the pin slot and the length of the two insertion grooves on both sides. A pressure plate is also slidably connected in the limiting hole. The top of the pressure plate abuts against the bottom of the corresponding comb needle body, and the bottom of the pressure plate is connected to the bottom wall of the limiting hole by a first spring.

[0010] Furthermore, the cotton stripping belt is spliced ​​together at both ends to form a structure that can wrap around the outside of the transmission belt. A splicing block is provided at the beginning of the cotton stripping belt, and a connecting groove is provided on the splicing block. A sliding groove is provided on both sides of the connecting groove, and a connecting block is slidably connected in both sliding grooves. Both connecting blocks are connected to the corresponding sliding grooves by a second spring. A push rod is provided on the side of the connecting block away from the connecting groove, which moves outward from the sliding groove to the outside of the splicing block. The ends of the connecting blocks close to the connecting groove are set into the connecting groove. A splicing groove adapted to the splicing block is provided at the end of the cotton stripping belt, and a connecting buckle adapted to the connecting groove is provided in the splicing groove. A fixing groove adapted to the connecting block is provided on both sides of the connecting buckle. The cotton stripping belt enters the splicing groove through the splicing block and the connecting buckle is fastened into the connecting groove. The two connecting blocks are inserted into the corresponding fixing grooves to splice the beginning and end of the belt.

[0011] Furthermore, the top of the connecting block is provided with a sloping structure.

[0012] Furthermore, each of the push rods on both sides has a handle on the end that extends out of the splicing block.

[0013] Furthermore, the stripping belt includes a belt body and bristles disposed on the belt body. The bristles are evenly distributed along the length of the belt body, and the spacing between adjacent bristles is 2-3 times the diameter of the bristles.

[0014] Furthermore, each of the pin slots has a symmetrically arranged limiting groove on its bottom wall. The limiting grooves on both sides are adapted to the corresponding plug blocks on both sides, and the limiting grooves on both sides are staggered with the corresponding plug slots on both sides.

[0015] Furthermore, the yarn tube is positioned above the stripping belt, the combing roller is positioned below the stripping belt, the suction fan and the machine base are connected by a first air duct, and the connection point between the first air duct and the machine base is located below the combing roller. The cotton collection box is connected to the suction fan by a second air duct.

[0016] Furthermore, the conveyor belt, yarn tube, and comb roller move in the same direction, while the stripping belt and yarn tube move in opposite directions.

[0017] Secondly, the present invention provides a method for using an automatic roving head cotton carding machine, comprising the following steps: starting the automatic roving head cotton carding machine, adding cotton yarn into the feed hopper, the conveyor belt transporting the cotton yarn in the feed hopper to the yarn tube for winding, the stripping belt stripping the cotton yarn wound on the yarn tube by moving in the opposite direction to the yarn tube, and conveying the stripped cotton yarn to the carding roller position, the carding roller combing and decomposing the cotton yarn passing through, decomposing the cotton yarn on the stripping belt into cotton fibers and falling off the stripping belt, the falling cotton fibers passing through the first air duct and the second air duct under the action of the suction fan, and finally entering the cotton collection box for collection.

[0018] Furthermore, the method of use also includes the following steps: When installing the comb body, insert the comb body into the corresponding pin slot and press down on the comb body so that the pin blocks on both sides of the bottom of the comb body are fully inserted into the limiting hole by pressing the pressure plate. Then, rotate the comb body to misalign the pin blocks on both sides with the corresponding pin slot and put them into the corresponding side limiting slot before releasing the comb body. When disassembling the comb body, press down on the comb body so that the pin blocks on both sides of the bottom of the comb body are fully inserted into the limiting hole and disengaged from the corresponding side limiting slot by pressing the pressure plate. Then, rotate the comb body to rotate the pin blocks on both sides to adapt to the position of the corresponding side pin slot before pulling out the comb body.

[0019] The present invention has the following beneficial effects:

[0020] 1. This invention, by setting up a first magnetic block, a second magnetic block, and a mounting groove, etc., allows the first magnetic block to be inserted into the mounting groove and then attracted to the second magnetic block to complete the connection between the cotton stripping belt and the transmission belt. Compared with the prior art, this invention uses a magnetic connection method to replace the conventional screw connection method, which has the advantages of convenient disassembly and improved production efficiency.

[0021] 2. This invention, by setting up structures such as insertion blocks, insertion slots, limiting blocks, pressure plates, and a first spring, allows for the installation of the comb needle body. The comb needle body is inserted into the corresponding insertion slot, and the comb needle body is pressed downwards. This causes the insertion blocks on both sides of the bottom of the comb needle body to fully enter the limiting holes through the pressure plate. Then, by rotating the comb needle body, the insertion blocks on both sides are misaligned with the corresponding insertion slots and engaged in the corresponding limiting slots. After releasing the comb needle body, the first spring pushes the pressure plate upwards, and the pressure plate, in conjunction with the bottom of the insertion slot, presses the insertion blocks firmly, thus fixing the comb needle body. When the comb needle body needs to be disassembled, it is pressed downwards and then rotated until the insertion blocks on both sides align with the corresponding insertion slots, allowing the comb needle body to be pulled out. Compared to existing technologies, this invention offers advantages such as convenient disassembly and improved production efficiency.

[0022] 3. This invention achieves the end-to-end splicing of the cotton strip by setting it as a splicing structure and using splicing blocks, splicing grooves, connecting grooves, sliding grooves, connecting blocks, connecting buckles, fixing grooves, etc. The cotton strip with the end-to-end splicing structure can be fully unfolded during cleaning. Compared with the common closed ring structure, the fully unfolded cotton strip is easier for workers to clean and has the advantage of convenient cleaning.

[0023] 4. By setting the spacing between adjacent bristles on the cotton stripping belt to 2-3 times the bristle diameter, the cotton stripping belt with this structure has the advantage of being less prone to clogging compared to the traditional structure. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a partial structural diagram of the present invention;

[0026] Figure 3 This is a schematic diagram of the cotton stripping structure in this invention;

[0027] Figure 4 This is a schematic diagram of the structure when the cotton strip is unfolded in this invention;

[0028] Figure 5 This is a partial structural diagram of the splicing of the cotton strips at both ends in this invention;

[0029] Figure 6 This is a schematic diagram of the structure when the connecting buckle is fastened into the connecting groove in this invention;

[0030] Figure 7 This is a schematic diagram of the connecting block in this invention;

[0031] Figure 8This is a schematic diagram of the structure of the comb body inserted into the pin slot in this invention;

[0032] Figure 9 This is a schematic diagram of the structure of the comb needle body pressing the pressure plate in this invention;

[0033] Figure 10 This is a schematic diagram of the top structure of the pin slot in this invention;

[0034] Figure 11 This is a schematic diagram of the bottom structure of the pin slot in this invention.

[0035] The reference numerals in the figure are as follows:

[0036] 1. Base; 2. Feed hopper; 3. Conveyor belt; 4. Yarn tube; 5. Cotton stripping assembly; 51. Transmission wheel set; 52. Transmission belt; 53. Cotton stripping belt; 531. Belt body; 532. Brush; 6. Combing roller; 7. Suction fan; 8. Cotton collection box; 9. First magnetic block; 10. Mounting groove; 11. Second magnetic block; 12. Needle insertion groove; 13. Combing needle body; 14. Insertion block; 15. Insertion groove; 16. Limiting hole; 17. Pressure plate; 18. First spring; 19. Splicing block; 20. Connecting groove; 21. Slide groove; 22. Connecting block; 23. Second spring; 24. Push rod; 25. Splicing groove; 26. Connecting buckle; 27. Fixing groove; 28. Handle; 29. ​​Limiting groove; 30. First air duct; 31. Second air duct. Detailed Implementation

[0037] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0038] Example: Please refer to Figures 1-11 This embodiment provides an automatic roving head cotton carding machine, including a base 1. The base 1 is equipped with a feed hopper 2, a conveyor belt 3, a yarn tube 4, a cotton stripping assembly 5, and a carding roller 6. The conveyor belt 3, yarn tube 4, and carding roller 6 move in the same direction, while the cotton stripping belt 53 moves in opposite directions to the yarn tube 4. A suction fan 7 and a cotton collection box 8 are provided on one side of the base 1. The yarn tube 4 is positioned above the cotton stripping assembly 5, and the carding roller 6 is positioned below the cotton stripping assembly 5. The suction fan 7 is connected to the base 1 via a first air duct 30, and the second air duct 30... The connection point between the air duct 30 and the machine base 1 is located below the carding roller 6. The cotton collection box 8 is connected to the suction fan 7 through the second air duct 31. At the same time, the position of the yarn tube 4 is set to ensure that the cotton yarn conveyed by the conveyor belt 3 can pass through the yarn tube 4 and be wound on the yarn tube 4. The position of the cotton stripping component 5 is set to ensure that it can contact the cotton yarn wound on the yarn tube 4, so that the cotton yarn can be unwound and the unwound cotton yarn can be conveyed to the carding roller 6 so that the carding roller 6 can comb and decompose the cotton yarn.

[0039] In this embodiment, the cotton stripping assembly 5 includes a drive wheel set 51, a drive belt 52 connected to the drive wheel set 51, and a cotton stripping belt 53 arranged around the outside of the drive belt 52. The drive wheel set 51 and the drive belt 52 are configured to drive the cotton stripping belt 53 located outside the drive belt 52. The cotton stripping belt 53 is a component that pulls the cotton yarn to achieve unwinding. Therefore, the cotton stripping belt 53 must be configured to contact the cotton yarn wound on the yarn tube 4, so as to perform the unwinding operation and transport the unwound cotton yarn to the carding roller 6.

[0040] In this embodiment, a plurality of first magnetic blocks 9 are provided on the side wall of the stripping belt 53 close to the transmission belt 52. The number and distribution of the first magnetic blocks 9 can be determined according to the actual situation. Preferably, they are evenly distributed along the length of the stripping belt 53 and the number is not less than three. The side wall of the transmission belt 52 close to the stripping belt 53 has mounting grooves 10 with a number and position corresponding to the first magnetic blocks 9. Both ends of the mounting grooves 10 are open structures. Each mounting groove 10 is provided with a second magnetic block 11. The arrangement of the first magnetic blocks 9, the mounting grooves 10 and the second magnetic blocks 11 ensures that when the stripping belt 53 is installed, the first magnetic block 9 can be attracted to the corresponding second magnetic block 11 after being pushed into the corresponding mounting groove 10, thereby installing the stripping belt 53 onto the transmission belt 52. When it is necessary to disassemble the transmission belt 52, the stripping belt 53 can be directly pulled out of the transmission belt 52. Compared to traditional screw connections, it has the advantages of being simple and convenient to assemble and disassemble.

[0041] Since cotton yarn residue inevitably remains on the stripping belt 53 during the unwinding process, this embodiment aims to minimize such residue. The stripping belt 53 includes a belt body 531 and bristles 532 disposed on the belt body 531. The bristles 532 are evenly distributed along the length of the belt body 531, with the spacing between adjacent bristles being 2-3 times their diameter. By setting the spacing between the bristles 532 to 2-3 times their diameter, the amount of cotton yarn residue on the stripping belt 53 can be minimized while ensuring effective unwinding. This reduces the frequency of cleaning the stripping belt 53 and improves production efficiency.

[0042] Meanwhile, cleaning the stripping belt 53 and removing residual cotton yarn is also a very important task. Traditional stripping belts 53 are mostly closed loop structures. When cleaning the stripping belt 53, it is necessary to constantly change the cleaning position of the stripping belt 53 to ensure that the loop structure is cleaned, which is a troublesome cleaning problem. To solve this problem, in this embodiment, the cotton stripping belt 53 is spliced ​​together at both ends to form a structure that can wrap around the outside of the transmission belt 52. A splicing block 19 is provided at the beginning of the cotton stripping belt 53. A connecting groove 20 is provided on the splicing block 19. Sliding grooves 21 are provided inwardly on both sides of the connecting groove 20. Connecting blocks 22 are slidably connected within both sliding grooves 21. Both connecting blocks 22 are connected to their corresponding sliding grooves 21 by a second spring 23. Push rods 24 are provided on the side of the connecting blocks 22 away from the connecting groove 20, extending outward from the sliding groove 21 to the outside of the splicing block 19. The ends of both connecting blocks 22 close to the connecting groove 20 are inserted into the connecting groove 20. A splicing groove 25, adapted to the splicing block 19, is provided at the end of the cotton stripping belt 53. A connecting groove 25 is provided within the splicing groove 25. A connecting buckle 26 adapted to the connecting groove 20 is provided. Fixing grooves 27 adapted to the connecting block 22 are provided on both sides of the connecting buckle 26. With the above-mentioned arrangement, when the cotton strip 53 is spliced, the splicing block 19 enters the splicing groove 25 and the connecting buckle 26 is fastened into the connecting groove 20. Then, by pulling the push rods 24 on both sides, the connecting blocks 22 on both sides are retracted into the corresponding side sliding grooves 21 so that the connecting buckle 26 can be fully entered into the connecting groove 20. After the connecting buckle 26 is fully entered, by releasing the push rods 24, the connecting blocks 22 on both sides move towards the connecting groove 20 under the action of the second spring 23, thereby extending into the connecting groove 20 and inserting into the corresponding side fixing grooves 27, so that the splicing block 19 and the splicing groove 25 are fixedly connected together, thereby realizing the splicing of the beginning and end ends of the cotton strip 53. When it is necessary to disassemble the cotton stripping belt 53 for cleaning, the cotton stripping belt 53 can be disassembled by pulling the push rods 24 on both sides, causing the connecting blocks 22 on both sides to leave the corresponding side fixing groove 27 and retract into the corresponding side sliding groove 21.

[0043] To facilitate the splicing of the cotton stripping strip 53, in this embodiment, the top of both connecting blocks 22 is provided with a sloping structure. When the connecting buckle 26 enters the connecting groove 20, the connecting buckle 26 contacts the sloping structure on the top surface of the connecting blocks 22 through its bottom, thereby pushing the connecting block 22 into the corresponding sliding groove 21. This eliminates the need to first use the push rod 24 to pull the connecting block 22 back into the sliding groove 21 before fastening the connecting buckle 26 into the connecting groove 20, saving operation steps. To facilitate the disassembly of the cotton stripping strip 53, the ends of the push rods 24 extending beyond the corresponding splicing blocks 19 are provided with handles 28, which make it easier for workers to pull the push rods 24.

[0044] The comb roller 6 has multiple pin insertion slots 12. The number and distribution of the pin insertion slots 12 can be determined according to actual production needs. A comb needle body 13 is inserted into each pin insertion slot 12. The bottom of each comb needle body 13 has symmetrically arranged insertion blocks 14. The two side walls of each pin insertion slot 12 have insertion grooves 15 that are adapted to the insertion blocks 14. When the comb needle body 13 is inserted into the corresponding pin insertion slot 12, the two side insertion blocks 14 follow through the corresponding insertion grooves 15. The bottom of each pin insertion slot 12 on the comb roller 6 is provided with A limiting hole 16 is provided in communication with the corresponding pin slot 12. The diameter of the limiting hole 16 is not less than the sum of the diameter of the pin slot 12 and the length of the two side insertion slots 15, so that the part of the comb body 13 with the two side insertion blocks 14 at the bottom can be fully inserted into the limiting hole 16 and can rotate within the limiting hole 16. A pressure plate 17 is also slidably connected in the limiting hole 16. The top of the pressure plate 17 abuts against the bottom of the corresponding comb body 13, and the bottom of the pressure plate 17 is connected to the bottom wall of the limiting hole 16 by a first spring 18.

[0045] With the aforementioned setup, when installing the comb needle body 13, the comb needle body 13 is inserted into the corresponding pin slot 12, and the comb needle body 13 is pressed down, causing the pin blocks 14 on both sides of the bottom of the comb needle body 13 to fully enter the limiting hole 16 by pressing the pressure plate 17. Then, the comb needle body 13 is released after rotating the comb needle body 13 to misalign the pin blocks 14 on both sides with the corresponding pin slot 15. At this time, the first spring 18 pushes the pressure plate 17 upward, and the pressure plate 17, together with the bottom of the pin slot 12, presses the pin blocks 14 tightly, thereby completing the fixation of the comb needle body 13. When it is necessary to disassemble the comb needle body 13, the comb needle body 13 is pressed down, and then rotated, so that the pin blocks 14 on both sides are aligned with the corresponding pin slot 15, and then the comb needle body 13 can be pulled out.

[0046] To further enhance the reliability of the comb body 13 installed in the pin slot 12, each pin slot 12 is provided with a symmetrically arranged limiting groove 29 on its bottom wall. The setting of the limiting grooves 29 on both sides is adapted to the shape and size of the corresponding two-sided plug-in blocks 14, and the limiting grooves 29 on both sides are staggered with the corresponding two-sided plug-in slots 15. With the aforementioned setup, when installing the comb needle body 13, by inserting the comb needle body 13 into the corresponding insertion slot 12 and pressing down on the comb needle body 13, the insertion blocks 14 on both sides of the bottom of the comb needle body 13 are fully inserted into the limiting hole 16 by pressing the pressure plate 17. Then, by rotating the comb needle body 13, the insertion blocks 14 on both sides are misaligned with the corresponding insertion slot 15, and the comb needle body 13 is rotated until it coincides with the position of the limiting slots 29 on both sides. At this time, the comb needle body 13 will move upward to a certain extent under the action of the first spring 18 and the pressure plate 17, so that the insertion blocks 14 on both sides are fully inserted into the corresponding side limiting slots 29, which can better restrict the horizontal movement of the comb needle body 13, thereby enhancing the reliability of the comb needle body 13 installed in the insertion slot 12. When disassembling the comb body 13, press down on the comb body 13 to make the plug blocks 14 on both sides of the bottom of the comb body 13 fully enter the limiting hole 16 and disengage from the corresponding side limiting groove 29 through the pressing plate 17. Then, rotate the comb body 13 to make the plug blocks 14 on both sides rotate to adapt to the position of the corresponding side plug groove 15, and then the comb body 13 can be pulled out.

[0047] The specific usage method of the automatic roving head cotton carding machine provided in this embodiment is as follows: Start the automatic roving head cotton carding machine, then add cotton yarn into the feed hopper 2. The conveyor belt 3 transports the cotton yarn in the feed hopper 2 to the yarn tube 4 for winding. The stripping belt 53 strips the cotton yarn wound on the yarn tube 4 by moving in the opposite direction to the yarn tube 4, and transports the stripped cotton yarn to the carding roller 6. The carding roller 6 combs and decomposes the cotton yarn passing through it, breaking down the cotton yarn on the stripping belt 53 into cotton fibers, which then fall off the stripping belt 53. The fallen cotton fibers are then collected in the cotton collection box 8 by the suction fan 7 through the first air duct 30 and the second air duct 31. During the production process, the automatic roving head cotton carding machine needs to be shut down periodically, and the stripping belt 53 and the carding body 13 need to be inspected to determine whether cleaning and replacement are required, in order to ensure the quality of the obtained cotton fibers.

[0048] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An automatic roving head cotton carding machine, comprising a base (1), on which a feed hopper (2), a conveyor belt (3), a yarn tube (4), a cotton stripping assembly (5), and a carding roller (6) are provided; a suction fan (7) and a cotton collection box (8) are provided on one side of the base (1), characterized in that: The cotton stripping assembly (5) includes a transmission wheel set (51), a transmission belt (52) connected to the transmission wheel set (51), and a cotton stripping belt (53) arranged around the outside of the transmission belt (52). The side wall of the cotton stripping belt (53) close to the transmission belt (52) is provided with a plurality of first magnetic blocks (9). The side wall of the transmission belt (52) close to the cotton stripping belt (53) is provided with mounting grooves (10) in a number and position that are adapted to the first magnetic blocks (9). Each mounting groove (10) is provided with a second magnetic block (11). The cotton stripping belt (53) is connected to the corresponding mounting groove (10) through the first magnetic block (9) and attracts the corresponding second magnetic block (11) to be installed on the transmission belt (52). The cotton stripping belt (53) is spliced ​​together at both ends to form a structure that can wrap around the outside of the transmission belt (52). A splicing block (19) is provided at the first end of the cotton stripping belt (53). A connecting groove (20) is provided on the splicing block (19). A sliding groove (21) is provided inward on both sides of the side wall of the connecting groove (20). A connecting block (22) is slidably connected in both sides of the sliding groove (21). Both sides of the connecting block (22) are connected to the corresponding sliding groove (21) by a second spring (23). A push rod (24) is provided on the side of the connecting block (22) away from the connecting groove (20) and extends outward from the sliding groove (21) to the outside of the splicing block (19). The ends of the connecting blocks (22) on both sides that are close to the connecting groove (20) are set to extend into the connecting groove (20). The tail end of the cotton strip (53) is provided with a splicing groove (25) that is compatible with the splicing block (19). The splicing groove (25) is provided with a connecting buckle (26) that is compatible with the connecting groove (20). The two sides of the connecting buckle (26) are provided with fixing grooves (27) that are compatible with the connecting block (22). The cotton strip (53) enters the splicing groove (25) through the splicing block (19) and the connecting buckle (26) is fastened into the connecting groove (20). The two connecting blocks (22) on both sides are inserted into the corresponding fixing grooves (27) to splice the beginning and end ends together. The comb roller (6) has multiple pin slots (12), each pin slot (12) has a comb needle body (13) inserted into it, and each comb needle body (13) has symmetrically arranged insertion blocks (14) at its bottom. Each pin slot (12) has insertion grooves (15) on both sides of its side wall that are adapted to the insertion blocks (14). When the comb needle body (13) is inserted into the corresponding pin slot (12), the insertion blocks (14) on both sides follow through the corresponding insertion grooves (15). Each pin slot (12) has a limiting hole (16) at its bottom position that is connected to the corresponding pin slot (12). The diameter of the limiting hole (16) is not less than the sum of the diameter of the pin slot (12) and the length of the two side insertion slots (15). A pressure plate (17) is also slidably connected inside the limiting hole (16). The top of the pressure plate (17) abuts against the bottom of the corresponding comb body (13). The bottom of the pressure plate (17) is connected to the bottom wall of the limiting hole (16) by a first spring (18). Each pin slot (12) has a symmetrically arranged limiting slot (29) on its bottom wall. The limiting slots (29) on both sides are adapted to the corresponding plug blocks (14) on both sides, and the limiting slots (29) on both sides are staggered with the corresponding plug slots (15) on both sides. The yarn tube (4) is located above the stripping belt (53), the combing roller (6) is located below the stripping belt (53), the suction fan (7) and the machine base (1) are connected by the first air duct (30), and the connection position of the first air duct (30) and the machine base (1) is located below the combing roller (6). The cotton collection box (8) is connected to the suction fan (7) by the second air duct (31). The conveyor belt (3), the yarn tube (4) and the combing roller (6) move in the same direction, while the stripping belt (53) and the yarn tube (4) move in opposite directions.

2. An automatic roving head cotton carding machine according to claim 1, characterized in that: The top of the connecting block (22) has a sloping structure.

3. An automatic roving head cotton carding machine according to claim 1, characterized in that: The push rods (24) on both sides are provided with handles (28) at the ends that extend out of the splicing block (19).

4. An automatic roving head cotton carding machine according to claim 1, characterized in that: The stripping belt (53) includes a belt body (531) and bristles (532) on the belt body (531). The bristles (532) are evenly distributed on the belt body (531) along the length of the belt body (531), and the spacing between adjacent bristles (532) is 2-3 times the diameter of the bristles (532).

5. A method of using an automatic roving head cotton carding machine as described in any one of claims 1 to 4, characterized in that: Includes the following steps: Start the automatic roving head cotton carding machine, add cotton yarn into the feed hopper (2), the conveyor belt (3) transports the cotton yarn in the feed hopper (2) to the yarn tube (4) for winding, the cotton stripping belt (53) peels off the cotton yarn wound on the yarn tube (4) by moving in the opposite direction to the yarn tube (4), and transports the peeled cotton yarn to the combing roller (6) position. The combing roller (6) combs and decomposes the cotton yarn that passes through, decomposes the cotton yarn on the cotton stripping belt (53) into cotton fibers and falls off the cotton stripping belt (53). The fallen cotton fibers pass through the first air pipe (30) and the second air pipe (31) under the action of the suction fan (7), and finally enter the cotton collection box (8) for collection.

6. The method of using an automatic roving head cotton carding machine according to claim 5, characterized in that: It also includes the following steps: When installing the comb needle body (13), insert the comb needle body (13) into the corresponding pin slot (12) and press down on the comb needle body (13) so that the pin blocks (14) on both sides of the bottom of the comb needle body (13) are fully inserted into the limiting hole (16) by pressing the pressure plate (17). Then, rotate the comb needle body (13) to make the pin blocks (14) on both sides misalign with the corresponding pin slot (15) and engage in the corresponding side limiting slot (29), and then release. Comb body (13); When disassembling the comb body (13), press down on the comb body (13) to make the comb body (13) press the pressure plate (17) so that the plug blocks (14) on both sides of the bottom of the comb body (13) are fully inserted into the limiting hole (16) and disengaged from the corresponding side limiting groove (29). Then, rotate the comb body (13) to make the plug blocks (14) on both sides rotate to adapt to the position of the corresponding side plug groove (15) and then pull out the comb body (13).

Images