Self-leveling drawing frame

Abstract

The application relates to the technical field of textile equipment and discloses a self-adjusting evenness drawing frame, which comprises a feeding mechanism, a combining mechanism and an evenness mechanism, further comprises a tension adjusting mechanism arranged between the feeding mechanism and the combining mechanism, the tension adjusting mechanism comprises a mounting frame, a feeding guide pipe arranged on the mounting frame, a tension adjusting roller arranged on the mounting frame and moving up and down, and a discharging guide roller arranged on the mounting frame; the mounting frame comprises a bottom plate, a first mounting plate, a second mounting plate and a third mounting plate arranged on the bottom plate in sequence along the extension direction of the sliver, the sliver passes through the feeding guide pipe, is wound above the tension adjusting roller and is wound from below the discharging guide roller; the application can keep the tension of each sliver consistent during combining.

Description

A self-regulating leveling and drawing machine Technical Field

[0001] This application relates to the technical field of textile equipment, and in particular to a self-leveling drawing frame. Background Technology

[0002] The fiber processing generally involves raw material treatment and opening and combing to make raw materials into slivers. Since the fibers in the sliver are mostly in a bent and crooked state, the straightening and parallelism are poor, and the unevenness of long segments in the sliver is also relatively high, so it is generally necessary to process them into finished slivers through drawing to meet the requirements of subsequent processes.

[0003] The self-regulating leveling drawing frame is mainly used for drawing slivers. It mainly includes a feeding mechanism, a combining mechanism, and a leveling mechanism. The feeding mechanism draws multiple slivers separately and then feeds them together into the combining mechanism to combine them into one, making them evenly mixed. Finally, it is fed into the leveling mechanism for joint drawing, adjusting the linear density of the output sliver to achieve the purpose of leveling.

[0004] Regarding the aforementioned technologies, the feeding mechanism stretches each sliver individually. Due to the different stretching distances, under the influence of factors such as gravity, the tension of each sliver is different when it is fed into the merging mechanism. This can easily cause disorder during the merging process and affect the subsequent uniformity. Summary of the Invention

[0005] In order to ensure that the tension of each sliver remains consistent during the doubling process, this application provides a self-adjusting leveling drawing machine.

[0006] This application provides a self-adjusting leveling and drawing machine, which adopts the following technical solution:

[0007] A self-adjusting and leveling drawing frame includes a feeding mechanism, a doubling mechanism, and a leveling mechanism, and further includes a tension adjusting mechanism disposed between the feeding mechanism and the doubling mechanism. The tension adjusting mechanism may include a mounting frame, a feed guide tube disposed on the mounting frame, a tension adjusting roller disposed on the mounting frame that moves up and down, and a discharge guide roller disposed on the mounting frame.

[0008] The mounting frame includes a base plate and a first mounting plate, a second mounting plate, and a third mounting plate sequentially disposed on the base plate along the extension direction of the sliver. The guide tube is disposed on the first mounting plate, and multiple guide tubes are spaced apart along the length direction of the first mounting plate corresponding to the number of slivers. The tension adjusting roller is rotatably disposed on the first mounting plate, and multiple tension adjusting rollers are spaced apart along the length direction of the first mounting plate corresponding to the number of slivers. The discharge guide roller is rotatably disposed on the third mounting plate. After passing through the feed guide tube, the sliver passes over the tension adjusting roller and exits from under the discharge guide roller.

[0009] By adopting the above technical solution, and by setting a tension adjustment mechanism between the feeding mechanism and the merging mechanism, which includes a mounting frame, a feed guide tube, a tension adjustment roller, and a discharge guide roller, the tension of the sliver is effectively adjusted, ensuring that the tension on all the slivers is relatively consistent when they are in the merging mechanism, thereby improving the working efficiency of sliver merging and improving product quality.

[0010] Optionally, the second mounting plate is provided with a mounting seat for mounting the tension adjusting roller. The second mounting plate is provided with a movable groove for the mounting seat to slide up and down, and is also provided with a driving component for driving the mounting seat to slide up and down. The mounting seat includes a horizontally arranged first plate and a second plate arranged on both sides of the first plate. The two ends of the tension adjusting roller are respectively rotatably connected to the two second plates. A guide block is provided on the side wall of the second plate that is opposite to each other. A guide groove is provided on the second mounting plate for the guide block to slide up and down.

[0011] By adopting the above technical solution, the installation method and control method of the tension regulating roller are disclosed.

[0012] Optionally, the driving component includes a driving screw, the upper end of which is rotatably connected to the first plate, and the lower end of which is threaded through the base plate. The driving component also includes a handle disposed at the lower end of the driving screw.

[0013] By adopting the above technical solution, rotating the handle can drive the drive screw to rotate, causing the drive screw to move up and down relative to the base plate, and at the same time, it can drive the mounting seat at the upper end of the drive screw to move up and down, thereby realizing the up and down adjustment of the tension adjustment roller.

[0014] Optionally, the cross-sectional diameter of the tension regulating roller gradually increases from the middle to both ends.

[0015] By adopting the above technical solution, the sliver can pass through the middle position of the tension regulating roller relatively stably, thereby improving the stability of sliver control.

[0016] Optional. A scraper is provided on the first plate, and the upper end of the scraper abuts against the side wall of the tension adjusting roller.

[0017] By adopting the above technical solution, the scraper can effectively remove cotton lint from the tension regulating roller, keep its surface clean, reduce the impact of cotton lint on the sliver, and improve production quality.

[0018] Optionally, the upper end of the scraper is inclined toward the center line of the adjusting roller, and the inclination direction of the scraper is opposite to the rotation direction of the tension adjusting roller. The lower end of the scraper extends along the direction of the first plate and is fixed to the first plate. A storage cavity for storing cotton fibers is formed between the upper and lower ends of the scraper. An extrusion plate is provided on the side of the upper end of the scraper facing the storage cavity. An extrusion channel for cotton fibers to pass through is formed between the extrusion plate and the upper end of the scraper.

[0019] By adopting the above technical solution, it is convenient to collect and squeeze cotton lint, which facilitates subsequent processing and keeps the working environment clean.

[0020] Optionally, the end of the feed guide tube facing away from the second mounting plate is flared, the second mounting plate is provided with a positioning hole for engaging the feed guide tube, and the second mounting plate is provided with a fixing member for fixing the feed guide tube.

[0021] By adopting the above technical solutions, it is possible to facilitate the smooth entry of the raw strip, reduce material jamming, and improve production efficiency.

[0022] Optionally, the inner wall of the end of the feed guide tube opposite to the second mounting plate is provided with combing teeth, and multiple combing teeth are evenly arranged circumferentially.

[0023] By adopting the above technical solutions, the raw strips can be further sorted out, impurities and irregular parts can be removed, and product quality can be improved.

[0024] Optionally, a locking block is provided on the outer wall of the feed guide tube, and the second mounting plate is provided with a locking groove on the inner wall of the positioning hole for the locking block to be inserted.

[0025] By adopting the above technical solution, the cooperation between the positioning block and the positioning groove can locate the installation position of the guide tube, while ensuring that the feed guide tube is stably installed on the second mounting plate, preventing it from moving or falling off, and improving the stability of the equipment.

[0026] Optionally, the fixing component includes a fixing block, a control rod, a gripping block, and a spring. One end of the control rod is connected to the fixing block, and the other end passes through the surface of the base plate and is connected to the gripping block. The spring is sleeved on the outside of the control rod and connected between the gripping block and the side wall of the base plate. A fixing groove is provided on the outer wall of the guide tube for the fixing block to engage. When the fixing block is engaged in the fixing groove, the spring is in a stretched state.

[0027] By adopting the above technical solution, the movement of the fixed block can be controlled by moving the gripping block, so that it can engage or disengage from the fixing groove on the outer wall of the guide tube, thereby realizing the quick installation and disassembly of the feed guide tube, facilitating equipment maintenance and replacement, and thus adapting to different sizes of slivers; when the fixed block is engaged in the fixing groove, the spring is in a stretched state, and the tension of the spring is used to maintain the stable position of the fixed block, ensuring the firm installation of the feed guide tube; at the same time, it is also easy to release the fixed block by gripping the block, realizing quick disassembly.

[0028] In summary, this application includes at least one of the following beneficial effects:

[0029] 1. By introducing a tension adjustment mechanism, the tension of each sliver can be adjusted individually, effectively avoiding quality problems caused by uneven tension during the sliver blending and leveling process, such as sliver breakage and uneven thickness, thus significantly improving product quality.

[0030] 2. By setting up scrapers and forming extrusion channels and storage chambers, impurities such as cotton fibers on the side wall of the tension regulating roller can be scraped off in time, and after being compressed by the extrusion channels, they are accumulated in the storage chamber. Attached Figure Description

[0031] Figure 1 is a structural schematic diagram of an embodiment of this application;

[0032] Figure 2 is a schematic diagram of the tension adjustment mechanism;

[0033] Figure 3 is a cross-sectional view of the first mounting plate;

[0034] Figure 4 is a schematic diagram of the installation structure of the tension adjusting roller;

[0035] Figure 5 is a schematic diagram of the mounting base;

[0036] Figure 6 is a schematic diagram of the scraper structure.

[0037] Explanation of reference numerals in the attached drawings: 1. Feeding mechanism; 2. Combining mechanism; 3. Leveling mechanism; 4. Tension adjustment mechanism; 41. Mounting frame; 411. First mounting plate; 412. Second mounting plate; 413. Third mounting plate; 414. Base plate; 42. Feed guide tube; 421. Carding teeth; 422. Positioning block; 43. Tension adjustment roller; 44. Discharge guide roller; 5. Mounting seat; 51. First plate; 52. Second plate; 53. Guide block; 6. Driving component; 61. Driving screw; 62. Handle; 7. Scraper; 71. Storage chamber; 72. Extrusion plate; 73. Extrusion channel; 74. Inclined plate; 75. Flat plate; 76. First section of arc plate; 77. Second section of arc plate; 8. Fixing component; 81. Fixing block; 82. Control rod; 83. Holding block; 84. Spring. Detailed Implementation

[0038] The present application will be further described in detail below with reference to Figures 1-6.

[0039] This application discloses a self-adjusting leveling and drawing frame. Referring to Figure 1, the leveling and drawing frame includes a feeding mechanism 1, a merging mechanism 2, and a leveling mechanism 3, as well as a tension adjusting mechanism 4 disposed between the merging mechanism and the feeding mechanism 1. Specifically, the leveling and drawing frame also includes a machine body. The feeding mechanism 1 is disposed on one side of the machine body and is used to draw raw strips from multiple storage bins and feed them into the tension adjusting mechanism 4. The merging mechanism is disposed on the upper surface of the machine body. The tension adjusting mechanism 4 adjusts the tension of each raw strip to make its tension consistent before sending it to the merging mechanism for merging. The leveling mechanism 3 is disposed on the machine body, and the merged raw strips are then fed into the leveling mechanism 3 for drawing and leveling. The feeding mechanism 1, the merging mechanism 2, and the leveling mechanism 3 are all prior art and will not be described in detail here.

[0040] Referring to Figures 1 and 2, in this embodiment, the tension adjustment mechanism 4 includes a mounting frame 41, a feed guide tube 42, a tension adjustment roller 43, and a discharge guide roller 44. The mounting frame 41 consists of a base plate 414 and a first mounting plate 411, a second mounting plate 412, and a third mounting plate 413 fixed to the upper surface of the base plate 414. The first mounting plate 411, second mounting plate 412, and third mounting plate 413 are all arranged vertically and sequentially along the sliver extension direction. The feed guide tube 42 is disposed on the first mounting plate 411, and multiple tubes are spaced apart along the length of the first mounting plate 411, corresponding to the number of slivers. The tension adjustment roller 43 is vertically movable on the second mounting plate 412, and multiple tubes are also spaced apart along the length of the second mounting plate 412, corresponding to the number of slivers. The discharge guide roller 44 is rotatably disposed on the third mounting plate 413.

[0041] In use, after the sliver is fed out from the feeding mechanism 1, it first passes through the feed guide tube 42, then moves upwards around the upper surface of the tension adjusting roller 43, and then moves downwards around the lower surface of the discharge guide roller 44 before exiting. At this time, by adjusting the position of the tension adjusting roller 43 up and down, the tension of the corresponding sliver can be adjusted individually so that all slivers reach a state of uniform tension. Optionally, in order to facilitate the judgment of the pressure of each sliver, a pressure sensor can also be installed on the tension adjusting roller 43 to assist in the judgment.

[0042] Referring to Figures 2 and 3, in this embodiment, the cross-section of the feed guide tube 42 is annular, and the section of the feed guide tube 42 facing the feeding mechanism 1 is flared, that is, the inlet of the feed guide tube 42 is trumpet-shaped to facilitate the entry of sliver; optionally, a combing tooth 421 is provided on the inner wall of the end of the feed guide tube 42 facing the feeding mechanism 1, and multiple combing teeth 421 are arranged circumferentially along the inner wall of the feed guide tube 42, so that when the sliver enters, it can be further combed to effectively remove impurities and short fibers.

[0043] Furthermore, in this embodiment, the feed guide tube 42 is detachably fixed to facilitate replacement of feed guide tubes 42 with different inner diameters to accommodate different sizes of slivers. The second mounting plate 412 has positioning holes for engaging the feed guide tube 42, and a fixing member 8 for securing the second mounting plate 412 is also provided on the second mounting plate 412. Simultaneously, a locking block 422 is fixed to the outer wall of the feed guide tube 42. The locking blocks can be positioned on the left and right sides respectively. The second mounting plate 412 has locking grooves on the sidewall of the positioning holes that precisely engage with the locking blocks 422. The locking grooves can extend to the sidewall facing the feeding mechanism 1, thereby ensuring the stability and accurate positioning of the feed guide tube 42.

[0044] Referring to Figures 2 and 3, in this embodiment, the fixing member 8 includes a fixing block 81, a control rod 82, a gripping block 83, and a spring 84. The fixing block 81 is slidably disposed within the second mounting plate 412. A sliding groove for the fixing block 81 to slide is provided on the second mounting plate 412, and the sliding groove is connected to the positioning hole. A fixing groove for the fixing block 81 to engage is provided on the outer wall of the feed guide tube 42. Preferably, the fixing block 81 is an arc-shaped block, and the fixing groove is an arc-shaped groove. The control rod 82 is fixed to the outer wall of the fixing block 81, and the control rod 82 extends downward through the lower surface of the base plate 414 and is connected to the gripping block 83. The spring 84 is fixed between the side wall of the second mounting plate 412 and the gripping block 83, and the control rod 82 passes through the spring 84. When the fixing block 81 is inserted into the fixing groove, the spring 84 is in a stretched state, so that the fixing block 81 can be driven to press against the bottom wall of the fixing groove through the gripping block 83 and the control rod 82. When the feed guide tube 42 needs to be replaced, simply control the fixing block 81 to slide out of the fixing groove by holding the block 83 to remove the feed guide tube 42. After inserting the new feed guide tube 42, release the holding block 83. Under the force of the spring 84, the fixing block 81 will be inserted into the fixing groove, thereby fixing the feed guide tube 42.

[0045] Referring to Figures 2 and 4, in this embodiment, a mounting base 5 for mounting the tension adjusting roller 43 is provided on the second mounting plate 412. The mounting base 5 can slide up and down along the vertical direction. A corresponding movable groove for the mounting base 5 to slide up and down is provided on the second mounting plate 412, and the movable groove can extend to the upper surface. At the same time, a driving component 6 for driving the mounting base 5 to slide up and down is also provided on the second mounting plate 412. Specifically, the mounting base 5 includes a horizontally arranged first plate 51 and second plates 52 arranged on both sides of the first plate 51. The two second plates 52 extend upward, so that the cross-section of the mounting base 5 is "U" shaped. The two ends of the tension adjusting roller 43 are fixed with rotating shafts, which are rotatably connected to the second plates 52 through bearings or other means, thereby rotatably connecting the tension adjusting roller 43 to the mounting base 5.

[0046] Referring to Figures 4 and 5, guide blocks 53 are fixed on the opposite sidewalls of the two second plates 52. The guide blocks 53 are rectangular blocks; in other embodiments, they can also be T-shaped blocks or dovetail blocks. The second mounting plate 412 has corresponding guide grooves on its two opposite sidewalls for the guide blocks 53 to slide up and down. The driving component 6 includes a driving screw 61 and a handle 62. The upper end of the driving screw 61 is rotatably connected to the first plate 51, and the lower end of the driving screw 61 extends downwards and threaded through the base plate 414. The handle 62 is connected to the lower end of the driving screw 61. Rotating the handle 62 causes the driving screw 61 to move up and down relative to the base plate 414, thereby moving the mounting base 5 up and down to adjust the position of the tension adjusting roller 43. In actual operation, when the tension adjusting roller 43 moves upwards, the path length of the sliver increases accordingly, and the tension also increases; conversely, the tension decreases.

[0047] Referring to Figures 4 and 5, in this embodiment, the interface of the tension adjusting roller 43 is circular. Further optionally, the cross-sectional diameter of the tension adjusting roller 43 can gradually increase from the middle to both ends, so that when the sliver passes through the tension adjusting roller 43, it can pass more accurately from the middle position of the tension adjusting roller 43 under the action of gravity, thereby reducing the possibility of friction between the sliver and the second plates 52 on both sides.

[0048] Referring to Figures 5 and 6, in this embodiment, a scraper 7 is further preferably added to the first mounting plate 411. The upper end of the scraper 7 is in an inclined state and closely attached to the side wall of the tension adjusting roller 43, and its inclination direction is opposite to the rotation direction of the tension adjusting roller 43. This design is very beneficial for timely scraping off impurities such as cotton wool attached to the surface during the rotation of the roller, keeping the roller surface clean.

[0049] Specifically, the scraper 7 has an inclined plate 74 at its upper end and a horizontally arranged flat plate 75 at its lower end. The inclined plate 74 and the flat plate 75 are connected by a first curved plate 76. The lower flat plate 75 of the scraper 7 is mounted on the first plate 51 and fixed by countersunk bolts. A storage cavity 71 is formed between the inclined plate 74 at the upper end and the flat plate 75 at the lower end of the scraper 7, which is used to temporarily store the scraped impurities. Furthermore, the end of the flat plate 75 away from the inclined plate 74 extends upward and has a second curved plate 77. The second curved plate 77 is curved towards the storage cavity 71, thereby preventing impurities falling into the storage cavity 71 from flying out of the storage cavity 71.

[0050] Referring to Figures 5 and 6, further, an extrusion plate 72 is provided on the inner side of the inclined plate 74 at the upper end of the scraper 7. The upper end of the extrusion plate 72 is bent away from the scraper 7 to form an flared opening, and the lower end of the extrusion plate 72 extends downward to a position close to the flat plate 75. The extrusion plate 72 and the inclined plate 74 together form an extrusion channel 73. As the cotton fibers and other impurities scraped off by the scraper 7 accumulate, they generate force, causing the cotton fibers to enter the extrusion channel 73. In the extrusion channel 73, due to the interaction force between the cotton fibers, the fluffy cotton fibers are relatively compacted and sent into the extrusion channel 73. Finally, they fall into the storage cavity 71 along the extrusion channel 73. At this time, the density of the cotton fibers is relatively increased, making it less likely to fly out of the storage cavity 71. This ensures a clean working environment at the tension adjusting roller 43 and reduces the impact of cotton fibers on the sliver. At the same time, it can also store more cotton fibers, reducing the number of cleaning cycles.

[0051] The implementation principle of a self-adjusting leveling drawing frame according to an embodiment of this application is as follows: When the sliver enters the feed guide tube 42 from the feeding mechanism 1, the combing teeth 421 on the surface of the feed guide tube 42 can comb the sliver and effectively remove impurities and short fibers; then the sliver passes over the upper end of the tension adjusting roller 43. At this time, adjusting the height position of the tension adjusting roller 43 can individually adjust the tension of each sliver to keep it consistent; finally, the sliver extends out from the lower surface of the discharge guide roller 44 and enters the merging mechanism 2.

[0052] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A self-regulating and leveling drawing strip machine, comprising a feeding mechanism (1), a combining mechanism (2), and a leveling mechanism (3), characterized in that: It also includes a tension adjusting mechanism (4) disposed between the feeding mechanism (1) and the merging mechanism (2). The tension adjusting mechanism (4) may include a mounting frame (41), a feed guide tube (42) disposed on the mounting frame (41), a tension adjusting roller (43) disposed vertically on the mounting frame (41), and a discharge guide roller (44) disposed on the mounting frame (41). The mounting frame (41) includes a base plate (414) and a first mounting plate (411), a second mounting plate (412), and a third mounting plate (413) disposed sequentially on the base plate (414) along the extension direction of the sliver. The feed guide tube (42) is disposed on the first mounting plate (411), and multiple such tubes are spaced apart along the length of the first mounting plate (411) in accordance with the number of slivers; the tension adjustment mechanism (4) is rotatably disposed on the first mounting plate (411), and multiple such tubes are spaced apart along the length of the first mounting plate (411) in accordance with the number of slivers; the discharge guide roller (44) is rotatably disposed on the third mounting plate (413); after the sliver passes through the feed guide tube (42), it passes over the tension adjustment mechanism (4) from above, and passes out from under the discharge guide roller (44); The second mounting plate (412) is provided with a mounting seat (5) for mounting a tension adjusting roller (43). The second mounting plate (412) is provided with a movable groove for the mounting seat (5) to slide up and down, and is also provided with a driving member (6) for driving the mounting seat (5) to slide up and down. The mounting seat (5) includes a horizontally arranged first plate (51) and a second plate (52) arranged on both sides of the first plate (51). The two ends of the tension adjusting roller (43) are respectively rotatably connected to the two second plates (52). A guide block (53) is provided on the side wall of the second plate (52) that is opposite to each other. The second mounting plate (412) has a guide groove for the guide block (53) to slide up and down; the driving component (6) includes a driving screw (61), the upper end of the driving screw (61) is rotatably connected to the first plate (51), and the lower end of the driving screw (61) is threaded through the base plate (414); the driving component (6) also includes a handle (62) disposed at the lower end of the driving screw (61); the cross-sectional diameter of the tension adjusting roller (43) gradually increases from the middle to both ends; a scraper (7) is disposed on the first plate (51), and the upper end of the scraper (7) abuts against the side wall of the tension adjusting mechanism (4);The upper end of the scraper (7) is inclined toward the center line of the tension adjustment mechanism (4), and the inclination direction of the scraper (7) is opposite to the rotation direction of the tension adjustment roller (43). The lower end of the scraper (7) extends along the direction of the first plate (51) and is fixed on the first plate (51). A storage cavity (71) for storing cotton fibers is formed between the upper and lower ends of the scraper (7). A squeezing plate (72) is provided on the side of the upper end of the scraper (7) facing the storage cavity (71). A squeezing channel (73) for cotton fibers to pass through is formed between the squeezing plate (72) and the upper end of the scraper (7).

2. The self-adjusting leveling and drawing machine according to claim 1, characterized in that: The end of the feed guide tube (42) facing away from the second mounting plate (412) is flared. The second mounting plate (412) has a positioning hole for engaging the feed guide tube (42). The second mounting plate (412) is provided with a fixing member (8) for fixing the feed guide tube (42).

3. A self-regulating leveling and drawing machine according to claim 2, characterized in that: The inner side wall of the feed guide tube (42) opposite to the second mounting plate (412) is provided with combing teeth (421), and multiple combing teeth (421) are evenly arranged in the circumference.

4. A self-adjusting leveling and drawing machine according to claim 2, characterized in that: A locking block (422) is provided on the outer wall of the feed guide tube (42), and a locking groove for the locking block (422) to be inserted is provided on the inner wall of the positioning hole of the second mounting plate (412).

5. A self-regulating leveling and drawing machine according to claim 4, characterized in that: The fixing component (8) includes a fixing block (81), a control rod (82), a gripping block (83), and a spring (84). One end of the control rod (82) is connected to the fixing block (81), and the other end passes through the surface of the base plate (414) and is connected to the gripping block (83). The spring (84) is sleeved on the outside of the control rod (82) and connected between the gripping block (83) and the side wall of the base plate (414). A fixing groove is provided on the outer side wall of the feed guide tube (42) for the fixing block (81) to engage. When the fixing block (81) is engaged in the fixing groove, the spring (84) is in a stretched state.

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