A cotton sliver break point butt joint device and butt joint method of a cotton drawing frame

Abstract

The application provides a cotton sliver break point butt joint device and butt joint method of a cotton sliver drawing frame, which comprises a frame of the drawing frame, a plurality of cotton sliver conveying rollers are rotationally connected to both sides of the frame, a cotton conveying channel is fixedly installed at the bottom of the frame and corresponds to the positions of the cotton sliver conveying rollers, movable pull blocks are installed in the upper and lower ends of the cotton conveying channel, cotton guide holes are arranged on the pull blocks and are used for allowing the cotton slivers to pass through, the positions of the cotton guide holes in the upper and lower ends are staggered, mounting covers are fixedly installed on both sides of the middle part of the cotton conveying channel, the cover openings of the mounting covers are communicated with the cotton conveying channel, movable clamping blocks are installed in the mounting covers, rubbing plates are installed on the opposite surfaces of the clamping blocks and are movable in the front-back direction, and clamping assemblies are installed in the pull blocks and are used for clamping the cotton slivers in the cotton guide holes. The device can quickly and automatically complete the butt joint process of the break point after detecting the break.

Description

Technical Field

[0001] This invention relates to the field of cotton spinning drawing frame technology, and in particular to a cotton sliver break point joining device and joining method for a cotton spinning drawing frame. Background Technology

[0002] The function of a drawing frame is to improve the internal structure of the sliver, thereby increasing the uniformity of its length segments, reducing weight unevenness, straightening and paralleling the fibers in the sliver, reducing hooks, ensuring the fineness meets the requirements, and mixing different types or qualities of raw materials evenly to achieve the specified mixing ratio. Its main structure includes a feeding mechanism, a drafting mechanism, and a sliver forming mechanism.

[0003] In the existing technology, when the cotton sliver enters the drafting mechanism, it often breaks at uneven points due to the pulling force. Currently, workers need to monitor the machine and quickly manually reconnect the broken parts when a break occurs, which is quite troublesome and has a low degree of automation. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a cotton sliver break point docking device and method for a cotton spinning drawing frame. This device can quickly and automatically complete the docking process of the break point after detecting a break.

[0005] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0006] A cotton sliver break-point docking device for a cotton spinning drawing frame includes a frame of the drawing frame. Multiple cotton sliver conveying rollers are rotatably connected to both sides of the frame. A cotton conveying channel is fixedly installed at the bottom of the frame corresponding to the position of the cotton sliver conveying rollers. Pull blocks that can move in opposite directions are installed at both the upper and lower ends of the cotton conveying channel. Each pull block has a guide hole for the cotton sliver to pass through, and the upper and lower guide holes are staggered. Mounting covers are fixedly installed on both sides of the middle section of the cotton conveying channel, with the opening of the mounting cover communicating with the cotton conveying channel. Clamping blocks that can move in opposite directions are installed inside both mounting covers. A slatted board that can move back and forth is installed on the opposite surface of each pair of clamping blocks. Clamping components for clamping the cotton sliver in the guide holes are installed inside each pull block. Infrared sensors are installed on the upper left and lower right sides of the cotton conveying channel. A controller electrically connected to the infrared sensors is installed on the cotton conveying channel.

[0007] Preferably, a strip groove is provided on the rear side of the cotton conveying channel, and a double-ended threaded rod is rotatably connected in the strip groove. A motor that can drive the double-ended threaded rod to rotate is fixedly installed at the bottom of the cotton conveying channel. Nuts are threaded to both ends of the double-ended threaded rod, and the nuts are fixedly connected to the corresponding pull blocks.

[0008] Preferably, the clamping assembly includes a groove provided on one side of the cotton guide hole, a folding airbag is installed in the groove, the telescopic end of the folding airbag extends to the groove opening and is fixed with a stop plate, and the folding airbag is externally connected to a pump pipe and an air pump.

[0009] Preferably, a pair of sliding strips are fixedly connected to the side wall of the abutment, and the sliding strips are slidably connected to the inner wall of the groove.

[0010] Preferably, a cylinder is installed on the side wall of the mounting cover, and the telescopic end of the cylinder extends into the mounting cover and is fixedly connected to the corresponding clamping block.

[0011] Preferably, the clamping block has an installation groove on the side wall corresponding to the washboard, and a slider is elastically connected to the installation groove by a spring. The slider is fixedly connected to the corresponding washboard, and the spring is electrically connected to the controller.

[0012] Preferably, the surface of the washboard is embedded with multiple vertical air blowing pipes, and the sidewalls of the air blowing pipes are provided with multiple air blowing holes.

[0013] Preferably, the cotton conveying channel has an installation port on the upper left and lower right sides. The installation port is located between the corresponding infrared sensor and the pull block. A drive shaft is installed in the installation port. Multiple scraper rods are fixed on both sides of the drive shaft. The ends of the scraper rods are fixed with magnetic tips. Electromagnets that cooperate with the magnetic tips are installed at both the upper and lower ends of the installation port.

[0014] Preferably, cotton discharge channels with corresponding installation openings are fixedly installed on both sides of the cotton conveying channel, and a blower pipe that can blow air into the channel is installed on the top of the cotton discharge channel.

[0015] The present invention also provides a method for determining the break point of a cotton sliver in a cotton spinning drawing frame, comprising the following specific steps:

[0016] S1. The cotton sliver is pulled out of the cotton barrel, passes through the cotton conveying channel, and is conveyed by the corresponding cotton sliver conveying roller. The cotton sliver passes through the upper and lower cotton guide holes.

[0017] S2. When the cotton strip breaks in the cotton conveying channel, the cotton strip is pulled out to both ends of the cotton conveying channel from the point of breakage. During the pulling process, the infrared sensor detects the passing of the break point, and the air pump pipe quickly inflates the folded air bag, causing it to expand and drive the abutment plate to press against the cotton strip.

[0018] S3. The drive shaft drives a row of scrapers to rotate into the cotton conveying channel. A row of magnetic tips rotates past the break point of the cotton strip to scrape away the cotton lint at the break point and increase the contact area.

[0019] S4. Start the motor to drive the double-headed threaded rod to rotate. The nut drives a pair of pull blocks to move towards each other, pulling the break point to the middle and making it misaligned. Start the cylinders on both sides to drive a pair of clamping blocks to move towards each other, so that a pair of washboards clamp the two break points and make the two break points coincide. The pair of washboards move away from each other in the clamped state to complete the rubbing of the break points and complete the docking.

[0020] S5. After twisting, air is blown into the twisted area through multiple vertical air pipes and multiple air holes. The air is blown into the cotton sliver to loosen the twisted area and avoid affecting the subsequent drawing quality.

[0021] The beneficial effects of this invention are as follows:

[0022] 1. By installing a cotton conveying channel, a pair of pull blocks, a clamping assembly, a pair of clamping blocks, and a pair of rubbing plates, when the cotton sliver breaks in the cotton conveying channel, the cotton sliver is pulled out to both ends of the conveying channel starting from the break point. During the pulling process, the infrared sensor detects the break point passing by, and the air pump quickly inflates the folded air bag, causing it to expand and drive the abutment plate to press against the cotton sliver. The motor is started to drive the double-headed threaded rod to rotate, which drives the pair of pull blocks to move towards each other through the nut, pulling the break point to the middle and making it misaligned. The cylinders on both sides are started to drive the pair of clamping blocks to move towards each other, so that the pair of rubbing plates clamp the two break points and make the two break points coincide. The pair of rubbing plates move in opposite directions while clamped, thus completing the rubbing of the break points and automating the docking process.

[0023] 2. By installing a drive shaft, scraper rods, magnetic tips, and an electromagnet, the drive shaft drives a row of scraper rods to rotate into the cotton conveying channel. A row of magnetic tips rotates past the break point of the cotton sliver, scraping away the cotton fibers at the break point to increase the contact area. The scraped cotton fibers are transferred to the cotton discharge channel and blown out through the air pipe. Activating the electromagnet will confine the two rows of scraper rods and magnetic tips within the installation opening, without affecting the cotton conveying process.

[0024] 3. By installing multiple vertical air blowing pipes, after twisting, air is blown into the twisted area through multiple vertical air blowing pipes and multiple air blowing holes. The air is blown into the inside of the cotton sliver to loosen the twisted area and avoid affecting the subsequent drawing quality. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is a cross-sectional view of the cotton conveying channel proposed in this invention;

[0027] Figure 3 This is a top cross-sectional view of a pair of clamping blocks proposed in this invention;

[0028] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point A in the diagram;

[0029] Figure 5 This is a schematic diagram of the internal structure of the strip groove proposed in this invention;

[0030] Figure 6 This is a schematic diagram of the docking state of the present invention.

[0031] In the diagram: 1. Frame, 2. Glue conveying roller, 3. Glue conveying channel, 4. Mounting cover, 5. Glue discharge channel, 6. Pull block, 7. Glue guide hole, 8. Support plate, 9. Groove, 10. Folded air bag, 11. Double-ended threaded rod, 12. Strip groove, 13. Air blowing pipe, 14. Cylinder, 15. Infrared sensor, 16. Clamping block, 17. Mounting groove, 18. Washing board, 19. Air blowing pipe, 20. Scraper, 21. Nut, 22. Motor, 23. Drive shaft, 24. Mounting port, 25. Magnetic tip, 26. Electromagnet, 27. Spring, 28. Slider, 29. Glue. Detailed Implementation

[0032] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0034] Reference Figure 1-6 A cotton sliver break-point docking device for a cotton spinning drawing frame includes a frame 1 of the drawing frame. Multiple cotton sliver conveying rollers 2 are rotatably connected to both sides of the frame 1. A cotton conveying channel 3 is fixedly installed at the bottom of the frame 1 corresponding to the position of the cotton sliver conveying rollers 2. Pull blocks 6 that can move in opposite directions are installed in the upper and lower ends of the cotton conveying channel 3. Each pull block 6 is provided with a cotton guide hole 7 for the cotton sliver to pass through. The positions of the upper and lower cotton guide holes 7 are staggered. After the cotton sliver 29 is pulled out from the cotton spool, passes through the cotton conveying channel 3, and is conveyed by the corresponding cotton sliver conveying roller 2, the cotton sliver 29 passes through the upper and lower cotton guide holes 7.

[0035] Furthermore, a strip groove 12 is provided on the rear side of the cotton conveying channel 3. A double-headed threaded rod 11 is rotatably connected in the strip groove 12. A motor 22 that can drive the double-headed threaded rod 11 to rotate is fixedly installed at the bottom of the cotton conveying channel 3. Nuts 21 are threadedly connected to both ends of the double-headed threaded rod 11. Nuts 21 are fixedly connected to the corresponding pull blocks 6. When the motor 22 is started, it drives the double-headed threaded rod 11 to rotate. Through the nuts 21, it drives a pair of pull blocks 6 to move towards each other, pulling the break point to the middle and making it misaligned.

[0036] Mounting covers 4 are fixedly installed on both sides of the middle section of the cotton conveying channel 3. The openings of the mounting covers 4 are connected to the cotton conveying channel 3. Clamping blocks 16 that can move towards each other are installed inside the mounting covers 4 on both sides. Corrugated plates 18 that can move back and forth are installed on the opposite surfaces of a pair of clamping blocks 16. Cylinders 14 are installed on the side walls of the mounting covers 4. The telescopic ends of the cylinders 14 extend into the mounting covers 4 and are fixedly connected to the corresponding clamping blocks 16. The clamping blocks 16 have mounting grooves 17 on the side walls corresponding to the corrugated plates 18. Springs 27 spring through the mounting grooves 17. The connection includes a slider 28, which is fixedly connected to the corresponding washboard 18. A spring 27 is electrically connected to the controller. Activating the two cylinders 14 drives a pair of clamping blocks 16 to move towards each other, causing the washboard 18 to clamp the two breakpoints and align them. Before clamping, the controller energizes the two springs 27, causing them to contract and pull the washboard 18 via the slider 28. After the washboard 18 is clamped, the circuit is disconnected, the springs 27 reset, and the washboard 18 moves away from each other, thus completing the rubbing of the breakpoints and achieving docking.

[0037] Furthermore, the surface of the spun sheet 18 is embedded with multiple vertical air blowing pipes 19, and the side wall of the air blowing pipes 19 is provided with multiple air blowing holes. After spun together, air is blown into the spun area through the multiple vertical air blowing pipes 19 and multiple air blowing holes. The air is blown into the cotton sliver and loosens the spun area to avoid affecting the subsequent drawing quality.

[0038] Infrared sensors 15 are installed on the upper left and lower right sides of the cotton conveying channel 3. A controller electrically connected to the infrared sensors 15 is installed on the cotton conveying channel 3. A clamping assembly for clamping the cotton strip in the cotton guide hole 7 is installed in the pull block 6. The clamping assembly includes a groove 9 set on one side of the cotton guide hole 7. A folded airbag 10 is installed in the groove 9. The telescopic end of the folded airbag 10 extends to the groove opening and is fixed with a stop plate 8. The folded airbag 10 is externally connected to a pump pipe and an air pump. A pair of sliding strips are fixedly connected to the side wall of the stop plate 8. The sliding strips are slidably connected to the inner wall of the groove 9. When the infrared sensor 15 detects the passage of the break point, the pump pipe quickly inflates the folded airbag 10, causing it to expand and drive the stop plate 8 to press against the cotton strip 29.

[0039] In addition, the upper left and lower right sides of the cotton conveying channel 3 are provided with mounting ports 24. The mounting ports 24 are located between the corresponding infrared sensor 15 and the pull block 6. A drive shaft 23 is installed in the mounting port 24. Multiple scraper rods 20 are fixed on both sides of the drive shaft 23. Magnetic tips 25 are fixed to the ends of the scraper rods 20. Electromagnets 26 that cooperate with the magnetic tips 25 are installed at both the upper and lower ends of the mounting port 24. Cotton discharge channels 5 covering the corresponding mounting ports 24 are fixedly installed on both sides of the cotton conveying channel 3. A blower pipe 13 that can blow air into the cotton discharge channel 5 is installed on the top of the cotton discharge channel 5. The drive shaft 23 drives a row of scraper rods 20 to rotate into the cotton conveying channel 3. A row of magnetic tips 25 rotates through the break point of the cotton strip 29 to scrape the cotton lint at the break point and increase the docking area.

[0040] The cotton sliver 29 is pulled out from the cotton barrel, passes through the cotton conveying channel 3, and is then conveyed by the corresponding cotton sliver conveying roller 2. The cotton sliver 29 passes through the upper and lower cotton guide holes 7.

[0041] When the cotton sliver 29 breaks in the cotton conveying channel 3, the cotton sliver 29 is pulled out to both ends of the cotton conveying channel 3 starting from the break point. During the pulling process, the infrared sensor 15 detects the break point passing by, and the air pump pipe quickly inflates the folded air bag 10, causing it to expand and drive the abutment plate 8 to press against the cotton sliver 29. The drive shaft 23 drives a row of scraper rods 20 to rotate into the cotton conveying channel 3. A row of magnetic tips 25 rotates past the break point of the cotton sliver 29 to scrape away the cotton fibers at the break point and increase the contact area.

[0042] The starter motor 22 drives the double-ended threaded rod 11 to rotate, which in turn drives a pair of pull blocks 6 to move in opposite directions via the nut 21, pulling the break point to the middle and creating a misaligned state, as shown. Figure 6 In the indicated state, the two cylinders 14 are activated to drive a pair of clamping blocks 16 to move towards each other, so that a pair of rubbing plates 18 clamp the two break points and make the two break points coincide. Before clamping, the controller energizes the two springs 27, causing them to contract and pull the rubbing plates 18 through the slider 28. After the pair of rubbing plates 18 are in the clamped state, the circuit is disconnected, the springs 27 are reset, and the pair of rubbing plates 18 are driven to move away from each other, thus completing the rubbing of the break points and completing the docking. After rubbing, air is blown into the rubbing area through multiple vertical air pipes 19 and multiple air holes. The air is blown into the cotton sliver to loosen the rubbing area and avoid affecting the subsequent drawing quality.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sliver break-point joining device for a cotton spinning drawing frame, comprising a frame (1) of the drawing frame, wherein multiple sliver conveying rollers (2) are rotatably connected to both sides of the frame (1), characterized in that, The bottom of the frame (1) is fixedly installed with a cotton conveying channel (3) corresponding to the position of the cotton sliver conveying roller (2). The upper and lower ends of the cotton conveying channel (3) are equipped with pull blocks (6) that can move in opposite directions. Each pull block (6) is provided with a cotton guide hole (7) for cotton sliver to pass through. The upper and lower cotton guide holes (7) are staggered. The middle two sides of the cotton conveying channel (3) are fixedly installed with mounting covers (4). The opening of the mounting cover (4) is connected to the cotton conveying channel (3). Each side of the mounting cover (4) is equipped with a clamping block (16) that can move in opposite directions. Each pair of clamping blocks (16) is equipped with a rubbing board (18) that can move back and forth in opposite directions on the opposite surface. The pull block (6) is equipped with a clamping component for clamping the cotton sliver in the cotton guide hole (7). The upper left and lower right sides of the cotton conveying channel (3) are equipped with an infrared sensor (15). The cotton conveying channel (3) is equipped with a controller that is electrically connected to the infrared sensor (15). The clamping block (16) has an installation groove (17) on the side wall corresponding to the washboard (18). A slider (28) is elastically connected in the installation groove (17) by a spring (27). The slider (28) is fixedly connected to the corresponding washboard (18). The spring (27) is electrically connected to the controller. The surface of the washboard (18) is embedded with multiple vertical air blowing pipes (19), and the side wall of the air blowing pipes (19) is provided with multiple air blowing holes.

2. The sliver break point joining device for a cotton spinning drawing frame according to claim 1, characterized in that, The cotton conveying channel (3) is provided with a strip groove (12) on the rear side. A double-headed threaded rod (11) is rotatably connected in the strip groove (12). A motor (22) that can drive the double-headed threaded rod (11) to rotate is fixedly installed at the bottom of the cotton conveying channel (3). Nuts (21) are threaded to both ends of the double-headed threaded rod (11). The nuts (21) are fixedly connected to the corresponding pull block (6).

3. The sliver break point joining device for a cotton spinning drawing frame according to claim 1, characterized in that, The clamping assembly includes a groove (9) provided on one side of the cotton guide hole (7), a folding airbag (10) is installed in the groove (9), the telescopic end of the folding airbag (10) extends to the groove opening and is fixed with a stop plate (8), and the folding airbag (10) is externally connected to a pump pipe and an air pump.

4. The sliver break point joining device for a cotton spinning drawing frame according to claim 3, characterized in that, A pair of sliding strips are fixedly connected to the side wall of the abutment (8), and the sliding strips are slidably connected to the inner wall of the groove (9).

5. The sliver break point joining device for a cotton spinning drawing frame according to claim 1, characterized in that, A cylinder (14) is installed on the side wall of the mounting cover (4), and the telescopic end of the cylinder (14) extends into the mounting cover (4) and is fixedly connected to the corresponding clamp (16).

6. The sliver break point joining device for a cotton spinning drawing frame according to claim 1, characterized in that, The cotton conveying channel (3) has an installation port (24) on its upper left and lower right sides. The installation port (24) is located between the corresponding infrared sensor (15) and the pull block (6). A drive shaft (23) is installed in the installation port (24). Multiple scraper rods (20) are fixed on both sides of the drive shaft (23). A magnetic tip (25) is fixed at the end of the scraper rod (20). Electromagnets (26) that cooperate with the magnetic tip (25) are installed at both the upper and lower ends of the installation port (24).

7. The sliver break point joining device for a cotton spinning drawing frame according to claim 6, characterized in that, Both sides of the cotton conveying channel (3) are fixedly installed with cotton discharge channels (5) covered with corresponding installation ports (24), and the top of the cotton discharge channel (5) is equipped with a blower pipe (13) that can blow air into the channel (5).

8. A joining method for a sliver break point joining device of a cotton spinning drawing frame according to any one of claims 1-7, characterized in that, The specific steps include the following: S1. The cotton sliver (29) is pulled out from the cotton barrel, passes through the cotton conveying channel (3), and is conveyed by the corresponding cotton sliver conveying roller (2). The cotton sliver (29) passes through the upper and lower cotton guide holes (7). S2. When the cotton strip (29) breaks in the cotton conveying channel (3), the cotton strip (29) is pulled out to both ends of the cotton conveying channel (3) starting from the break point. During the pulling process, the infrared sensor (15) detects the break point passing through, and the air pump pipe quickly inflates the folded air bag (10) to make it expand and drive the abutment plate (8) to press against the cotton strip (29). S3, the drive shaft (23) drives a row of scrapers (20) to rotate into the cotton conveying channel (3), and passes through a row of magnetic tips (25) to the break point of the cotton strip (29), scraping the cotton lint at the break point to increase the docking area; S4. Start the motor (22) to drive the double-headed threaded rod (11) to rotate. Through the nut (21), drive a pair of pull blocks (6) to move towards each other, pull the break point to the middle and make it misaligned. Start the cylinders (14) on both sides to drive a pair of clamping blocks (16) to move towards each other, so that a pair of washboards (18) clamp the two break points and make the two break points coincide. The pair of washboards (18) move away from each other in the clamped state, so that the break points can be rubbed together and the docking can be completed. S5. After twisting, air is blown into the twisted area through multiple vertical air pipes (19) and multiple air holes. The air is blown into the cotton sliver to loosen the twisted area and avoid affecting the subsequent sliver quality.

Images