A self-cleaning cylinder and a straight combing machine using the same.

Abstract

A straight combing machine includes a self-cleaning cylinder, which comprises a crankshaft connecting rod and a drum. The crankshaft connecting rod is disposed within the drum, and the drum is coaxially arranged around the crankshaft connecting rod with the main shaft of the crankshaft connecting rod. The drum is rotatable around the crankshaft connecting rod. A crank mechanism is provided on the crankshaft connecting rod, which is eccentrically arranged relative to the main shaft. A combing module is rotatably connected to the crank mechanism. The combing module is rotatably connected to the crank mechanism of the crankshaft connecting rod on the side facing the crankshaft connecting rod. A plurality of combing needles extending out of the drum are provided on the side of the combing module away from the crankshaft connecting rod. A limiting groove is provided on the inner wall of the drum at the position in contact with the combing module. The bottom of the limiting groove is provided with corresponding combing needle arc holes at the relative positions of the combing needles. The combing needles can circulate in and out of the combing needle arc holes, and the short fiber impurities and granules combed by the combing needles can be discharged outside the combing needle arc holes and detached from the cylinder.

Description

Technical Field

[0001] This invention relates to the field of cotton textile machinery technology, specifically to a self-cleaning cylinder and a straight combing machine using the same. Background Technology

[0002] A straight comber is a type of textile machinery used in the combing step of cotton textile manufacturing. It primarily removes short fiber impurities and knots from cotton fiber bundles, further straightening and parallelizing the fibers, improving fiber separation, straightness, and parallelism, and eliminating forward hooks in the cotton fibers. This results in a uniform, clean combed sliver with relatively consistent fiber length. For a detailed description of the straight comber's structure, please refer to [link to documentation]. Figure 1 As shown.

[0003] The cylinder is an important component of the combing machine. Several combing needles are arranged on its outer side. The rotating combing needles can insert into the cotton fiber bundle held by the nipper plate and comb it, thereby removing short fiber impurities and granules from the cotton fiber bundle.

[0004] Currently, the cylinders used in straight combing machines are mainly divided into two categories: needle-type cylinders and sawtooth-type cylinders. Needle-type cylinders have several comb needles implanted into the cylinder base for fixation, while sawtooth-type cylinders use metal serrations instead of comb needles. Both types of cylinders experience fiber entrapment during actual combing operations. A brush roller needs to be installed on one side to clean the entrapped fibers in real time to prevent them from affecting the normal combing process. Through long-term production observation, the applicant has found the following defects in the use of brush rollers in straight combing machines:

[0005] 1. The comb needles of the cylinder are arranged very densely, and the fibers embedded at the base of the comb needles are tightly entangled between the comb needles, making it difficult for the brush roller to clean them thoroughly.

[0006] 2. After repeated contact with the cylinder comb needles, the bristles of the brush roller will suffer severe wear, making the brush roller a vulnerable part that needs to be replaced regularly to ensure its cleaning effect. However, replacing the brush roller requires shutting down the entire textile production line, which will seriously affect the factory's production efficiency. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a self-cleaning cylinder and a straight combing machine using the same.

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

[0009] A self-cleaning cylinder includes a crankshaft connecting rod and a roller. The crankshaft connecting rod is disposed within the roller, which is coaxially arranged around the crankshaft connecting rod and with the main shaft of the crankshaft connecting rod. Driven by a motor, the roller can rotate around the crankshaft connecting rod. A crank mechanism is eccentrically arranged relative to the main shaft on the crankshaft connecting rod. A combing module is rotatably connected to the crank mechanism. The combing module is rotatably connected to the crank mechanism on the side facing the crankshaft connecting rod. A combing base is disposed on the side of the combing module away from the crankshaft connecting rod, and a plurality of combing needles are disposed on the combing base. A limiting groove is provided on the inner wall of the roller at the position contacting the combing module, and the combing base is slidably connected in the limiting groove. The bottom of the limiting slide groove has a corresponding comb needle arc hole at the relative position of the comb needle head. When the roller rotates around the crankshaft connecting rod, it can drive the combing module to rotate together. Under the action of the eccentrically set crank mechanism, the combing module can slide up and down in the limiting slide groove. The comb needle head can extend out of the outer wall of the roller when the center of the limiting slide groove is closest to the center of the crank mechanism, and can be completely retracted into the outer wall of the roller when the center of the limiting slide groove is furthest from the center of the crank mechanism. This allows the comb needle head to cyclically extend and retract in the comb needle arc hole. During the process of the comb needle head retracting into the comb needle arc hole, the short fiber impurities and granules combed by the comb needle head can be discharged outside the comb needle arc hole and detached from the cylinder.

[0010] As described above, a self-cleaning cylinder includes a cylinder body that is rotatably connected to the crankshaft connecting rod and coaxially with the main shaft of the crankshaft connecting rod. End caps are fixedly connected to the openings on both sides of the cylinder body. The main shaft of the crankshaft connecting rod passes through the middle of the end caps and is rotatably connected to them coaxially. The end caps provide enclosure for the space inside the cylinder body and also provide support for the cylinder body. Limiting sliding holes are provided on the cylinder wall. The combing base of the combing module is slidably connected in the limiting sliding holes. A closed arc plate is covered at the relative position of the limiting sliding holes on the outer side of the cylinder body, and a plurality of comb needle arc holes are provided on it. The closed arc plate causes the limiting sliding holes to form limiting sliding grooves, allowing the comb needles of the combing module to pass through the comb needle arc holes of the closed arc plate and extend out of the closed arc plate.

[0011] Furthermore, a cleaning ring is fixedly connected in the comb needle arc hole. The cleaning ring is made of soft rubber. A cleaning hole is provided at the position where the comb needle passes through the middle of the cleaning ring. The comb needles in the same row can pass through the same cleaning hole. The cleaning ring made of soft rubber prevents the cleaned short fiber impurities and granules from entering the roller.

[0012] Furthermore, the inner wall of the cleaning hole is provided with several pairs of limiting protrusions that protrude towards the opposite side. The limiting protrusions can slide relative to the side of the comb head. The limiting protrusions can seal the cleaning hole and wipe away short fiber impurities and granules and other debris attached to the surface of the comb head to the outside of the roller.

[0013] Furthermore, the portions of the cleaning ring extending out of the comb needle arc holes on both the upper and lower sides are provided with limiting portions that extend circumferentially along the comb needle arc holes. The width of the limiting portions is greater than the width of the comb needle arc holes, which can limit the position of the cleaning ring in the comb needle arc holes.

[0014] As described above, the self-cleaning cylinder includes a combing module that further comprises a rotating frame and a counterweight. The rotating frame is rotatably connected to the crank mechanism of the crankshaft connecting rod, with one end fixedly connected to the combing base and the other end fixedly connected to the counterweight. The weight of the counterweight is the same as the weight of the combing base, and the counterweight can balance the weight of the combing base when the combing module rotates.

[0015] As described above, in a self-cleaning cylinder, the crank mechanism includes a crank shaft parallel to the main shaft, the rotating frame is rotatably connected to the crank shaft, and the distance between the axis of the crank shaft and the main shaft is not less than the height of the comb head, so that the comb head can be completely retracted into the cylinder.

[0016] Furthermore, connecting plates are fixedly connected to both ends of the crank shaft. The side of the connecting plate away from the crank shaft is fixedly connected to the main shaft. The connecting plate can limit the position of the comb needle module rotatably connected on the crank shaft.

[0017] Furthermore, the side of the combing base that is slidably connected to the inner wall of the limiting slide groove is a plane, and this plane is parallel to the vertical line connecting the crank shaft axis and the main shaft axis, so that the two sides of the combing base can be closely attached to the inner wall of the limiting slide groove and slide up and down relative to the roller.

[0018] A straight combing machine containing a self-cleaning cylinder as described above.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. The present invention provides a self-cleaning cylinder and a straight combing machine using the same. The combing module of the cylinder can slide up and down periodically relative to the roller, thereby driving the combing head to slide up and down as well. During the up and down sliding process, short fiber impurities and granules attached to the combing head are removed, and the removed short fiber impurities and granules cannot remain at the root of the combing head, resulting in thorough cleaning and good cleaning effect.

[0021] 2. The present invention provides a self-cleaning cylinder and a straight combing machine using the same. Because the combing module of the cylinder achieves self-cleaning during rotation, there is no need to set up cleaning brush rollers. On the one hand, this reduces the cost of setting up brush rollers. On the other hand, the straight combing machine using the self-cleaning cylinder does not need to be stopped regularly to replace the brush rollers, thus ensuring the production efficiency of textile factories. Attached Figure Description

[0022] The solutions and advantages of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention.

[0023] In the attached diagram:

[0024] Figure 1 This is a schematic diagram of the combing mechanism of a traditional straight combing machine;

[0025] Figure 2 This is a schematic diagram of the structure of a self-cleaning cylinder;

[0026] Figure 3 This is a schematic diagram of the internal structure of the cylinder;

[0027] Figure 4 A schematic diagram of the internal structure of the cylinder when the comb needles are extended;

[0028] Figure 5 A schematic diagram of the internal structure of the cylinder when the comb needle head is retracted;

[0029] Figure 6 This is a schematic diagram of a closed arc plate.

[0030] Figure 7 This is a structural diagram showing the location of the comb needle arc hole;

[0031] Figure 8 This is a schematic diagram of the crankshaft connecting rod structure;

[0032] Figure 9 This is a side view of the crankshaft connecting rod;

[0033] The components represented by the various reference numerals in the diagram are:

[0034] 1. Crankshaft connecting rod; 11. Main shaft; 12. Crank mechanism; 13. Crankshaft; 14. Connecting plate; 2. Roller; 21. Cylinder body; 22. Limiting sliding hole; 23. Enclosed arc plate; 24. End cover; 25. Pulley; 26. Comb needle head; 27. Comb needle arc hole; 28. Cleaning ring; 281. Cleaning hole; 282. Limiting protrusion; 283. Limiting part; 3. Combing module; 31. Combing base; 32. Rotating frame; 33. Counterweight tile. Detailed Implementation

[0035] The present invention will be further described below with reference to specific embodiments and further examples. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention. Detailed implementation method:

[0037] A straight combing machine containing a self-cleaning cylinder as described above, see [link to relevant documentation]. Figures 2-9 The self-cleaning cylinder includes a crankshaft connecting rod 1 and a roller 2. The crankshaft connecting rod 1 is disposed in the roller 2, and the roller 2 is coaxially arranged around the crankshaft connecting rod 1 with the main shaft 11 of the crankshaft connecting rod 1. Driven by a motor, the roller 2 can rotate around the crankshaft connecting rod 1. A crank mechanism 12 is provided on the crankshaft connecting rod 1, which is eccentrically arranged relative to the main shaft 11. A combing module 3 is rotatably connected to the crank mechanism 12. The combing module 3 is rotatably connected to the crank mechanism 12 of the crankshaft connecting rod 1 on the side facing the crankshaft connecting rod 1. A combing base 31 is provided on the side of the combing module 3 away from the crankshaft connecting rod 1. A plurality of combing needles 26 are provided on the combing base 31. A limit groove is provided on the inner wall of the roller 2 at the position in contact with the combing module 3. The combing base 31 is slidably connected in the limit groove. The bottom of the limit groove is provided with corresponding combing needle arc holes 27 at the relative positions of the combing needles 26. When the roller 2 rotates around the crankshaft connecting rod 1, it can drive the combing module 2 to rotate. The carding module 3 rotates together with the cylinder, and under the action of the eccentrically set crank mechanism 12, the carding module 3 can slide up and down in the limiting slide groove. The carding needle head 26 can extend out of the outer wall of the cylinder 2 when the center of the limiting slide groove is closest to the center of the crank mechanism 12, and can be completely retracted into the outer wall of the cylinder 2 when the center of the limiting slide groove is furthest from the center of the crank mechanism 12. This allows the carding needle head 26 to cyclically extend and retract in the carding needle arc hole 27. When the carding module 3 rotates to an eccentric position close to the crank mechanism 12, the carding needle head 26 extends completely from the carding needle arc hole 27 and inserts into the cotton fiber tuft held by the clamp plate to card it. When the carding module 3 rotates to an eccentric position away from the crank mechanism 12, the carding needle head 26 can retract into the carding needle arc hole 27. During the process of the carding needle head 26 retracting into the carding needle arc hole 27, the short fiber impurities and granules combed by the carding needle head 26 can be discharged outside the carding needle arc hole 27, thereby realizing the self-cleaning of the cylinder.

[0038] See Figures 2-4The combing module 3 also includes a rotating frame 32 and a counterweight 33. The rotating frame 32 is rotatably connected to the crank mechanism 12 of the crankshaft connecting rod 1. One end is fixedly connected to the combing base 31, and the other end is fixedly connected to the counterweight 33. The weight of the counterweight 33 is the same as the weight of the combing base 31. The counterweight 33 can balance the weight of the combing base 31 when the combing module 3 rotates, reducing the shaking and vibration caused by the rotation of the combing base 31. The combing base 31 is slidably connected in the limiting groove. The comb needle 26 is vertically fixed on the surface of the combing base 31 away from the crankshaft connecting rod 1. When the roller 2 rotates, the combing base 31 of the combing module 3 can slide up and down relative to the roller 2 under the drive of the roller 2, so that the comb needle 26 can periodically extend or retract from the roller 2.

[0039] Furthermore, the surface of the comb base 31 away from the crankshaft connecting rod 1 is an arc surface, which is coaxial with the roller 2, so that each row of comb needles 26 arranged on this surface can be arranged in an arc.

[0040] Preferably, the counterweight 33 is arc-shaped, and its axis coincides with the rotation axis of the combing module 3, so that the counterweight 33 can balance the weight of the combing base 31 as evenly as possible when it rotates, reduce the shaking and vibration of the combing module 3 caused by rotation, and improve the working life of the cylinder.

[0041] See Figure 8 and Figure 9 The crank mechanism 12 includes a crank shaft 13 parallel to the main shaft 11. The rotating frame 32 is rotatably connected to the crank shaft 13. The distance between the axis of the crank shaft 13 and the main shaft 11 is not less than the height of the comb head 26, so that the combing module 3 rotates eccentrically relative to the main shaft 11 on the crank shaft 13 and slides up and down relative to the roller 2, and the comb head 26 can be completely retracted into the roller 2.

[0042] Furthermore, connecting pieces 14 are fixedly connected to both ends of the crank shaft 13. The side of the connecting piece 14 away from the crank shaft 13 is fixedly connected to the main shaft 11. The connecting piece 14 can connect the crank shaft 13 and the main shaft 11, and limit the position of the comb needle module rotatably connected on the crank shaft 13, preventing the comb needle module from sliding back and forth on the crank shaft.

[0043] Furthermore, the surface on which the combing base 31 is slidably connected to the inner wall of the limiting slide groove is a plane, and this plane is parallel to the vertical line connecting the axis of the crank shaft 13 and the axis of the main shaft 11, so that while the combing base 31 rotates relative to the crank shaft 13, its two sides can also be closely attached to the inner wall of the limiting slide groove and slide up and down relative to the roller 2.

[0044] See Figures 2-5 The roller 2 includes a cylindrical body 21, which is rotatably connected to the crankshaft connecting rod 1 and coaxially with the main shaft 11 of the crankshaft connecting rod 1. End caps 24 are fixedly connected to the openings on both sides of the cylindrical body 21. The main shaft 11 of the crankshaft connecting rod 1 passes through the middle of the end caps 24 and is rotatably connected to the end caps 24. The end caps 24 provide enclosure for the space inside the cylindrical body 21 and also provide support for the cylindrical body 21 of the roller 2. Limiting sliding holes 22 are provided on the cylindrical wall of the cylindrical body 21. The combing base 31 of the combing module 3 is slidably connected in the limiting sliding holes 22. A closed arc plate 23 is covered at the relative position of the limiting sliding holes 22 on the outer side of the cylindrical body 21, and a plurality of comb needle arc holes 27 are provided on it. 23 makes the limiting sliding hole 22 form a limiting sliding groove, and the design of the closed arc plate 23 also makes the cylinder assembly more convenient and facilitates later maintenance and repair. The comb needle head 26 of the combing module 3 can pass through the comb needle arc hole 27 of the closed arc plate 23 and extend out of the closed arc plate 23. The closed arc plate 23 is provided with a comb needle arc hole 27 at the position where the comb needle head 26 passes through. Preferably, the shape of the comb needle head 26 in this embodiment is a flat crescent shape, arranged in rows along the axis of the cylinder, and the top of the comb needle head 26 is bent towards the rotation direction of the cylinder. The shape of the comb needle arc hole 27 in this embodiment is an arc shape, and it is also arranged in rows along the axis of the cylinder, so that each comb needle arc hole 27 can accommodate a row of comb needle heads 26 entering and exiting.

[0045] Preferably, a coaxial pulley 25 is provided on the side of the end cap 24 away from the cylinder 21, and the drive motor is connected to the pulley 25 on the cylinder end cap 24 via a belt, thereby driving the cylinder to rotate.

[0046] See Figure 6 and Figure 7 A cleaning ring 28 is fixedly connected to the comb needle arc hole 27. The cleaning ring 28 is made of soft rubber. A cleaning hole 281 is provided at the position where the comb needle 26 passes through the middle of the cleaning ring 28. The comb needles 26 in the same row can pass through the same cleaning hole 281. The cleaning ring 28 made of soft rubber can further reduce the size of the hole communicating with the outside of the roller 2, further enhancing the cleaning ability of the comb needle 26, while also preventing the short fiber impurities and granules that are cleaned off from entering the roller 2.

[0047] Furthermore, the inner wall of the cleaning hole 281 is provided with a number of paired limiting protrusions 282 facing opposite sides. The limiting protrusions 282 can slide relative to the side of the comb head 26. On the one hand, the limiting protrusions 282 can seal the cleaning hole 281 to prevent impurities such as short fiber impurities and granules from entering the roller 2. On the other hand, they can wipe and clean the comb head 26 each time it retracts into the roller 2, thereby completely eliminating the problem that short fiber impurities and granules are easily stuck at the root of the comb head 26 and are not easy to clean.

[0048] Furthermore, the cleaning ring 28 has a limiting part 283 extending circumferentially along the comb needle arc hole 27 on both the upper and lower sides. The width of the limiting part 283 is greater than the width of the comb needle arc hole 27, which can limit the position of the cleaning ring 28 in the comb needle arc hole 27 and prevent the cleaning ring 28 from being pushed out of the comb needle arc hole 27 by the comb needle head 26.

Claims

1. A self-cleaning type sintering drum, characterized by, Including crank connecting rod (1) and drum (2), the crank connecting rod (1) is arranged in drum (2), drum (2) is arranged around crank connecting rod (1), with the main shaft (11) of crank connecting rod (1) coaxial arrangement, under the drive of motor, drum (2) can rotate around crank connecting rod (1); The crank connecting rod (1) is provided with the crank mechanism (12) arranged eccentrically relative to the main shaft (11), the crank mechanism (12) is rotatably connected with the carding module (3); The carding module (3) is rotatably connected with the crank mechanism (12) of the crank connecting rod (1) on the side of the crank connecting rod (1), the carding module (3) is provided with a carding base (31) on the side away from the crank connecting rod (1), a plurality of carding needles (26) are arranged on the carding base (31), the inner wall of the drum (2) is provided with a limiting sliding groove at the position contacted with the carding module (3), the carding base (31) is slidably connected in the limiting sliding groove, the bottom of the limiting sliding groove is provided with a corresponding carding needle arc hole (27) at the relative position of the carding needle (26), the carding needle (26) can be extended out of the outer wall of the drum (2) when the center of the limiting sliding groove is closest to the center of the crank mechanism (12), and can be completely received in the outer wall of the drum (2) when the center of the limiting sliding groove is farthest from the center of the crank mechanism (12).

2. A self-cleaning type sintering cylinder according to claim 1, wherein The drum (2) includes a cylinder (21), the cylinder (21) is rotatably connected with the main shaft (11) of the crank connecting rod (1) around the crank connecting rod (1), the main shaft (11) of the crank connecting rod (1) passes through the middle of the end cover (24) and is rotatably connected with the end cover (24), the cylinder wall of the cylinder (21) is provided with a limiting sliding hole (22), the carding base (31) of the carding module (3) is slidably connected in the limiting sliding hole (22), the opposite position of the limiting sliding hole (22) outside the cylinder (21) is covered with a closed arc plate (23), a plurality of carding needle arc holes (27) are arranged on the closed arc plate (23), the closed arc plate (23) forms a limiting sliding groove with the limiting sliding hole (22), and the carding needle (26) of the carding module (3) can extend out of the closed arc plate (23) through the carding needle arc hole (27) of the closed arc plate (23).

3. A self-cleaning type sintering cylinder according to claim 2, wherein The cleaning ring (28) is fixedly connected in the carding needle arc hole (27), the cleaning ring (28) is made of soft rubber, and a cleaning hole (281) is arranged at the position where the middle of the cleaning ring (28) passes through the carding needle (26).

4. A self-cleaning type sintering cylinder according to claim 3, wherein A plurality of limiting convex strips (282) are arranged on the inner wall of the cleaning hole (281), and the limiting convex strips (282) are arranged on the opposite side of the protrusion.

5. A self-cleaning type sintering cylinder according to claim 4, wherein The portions of the cleaning ring (28) extending out of the carding needle arc hole (27) on the upper side and the lower side are provided with limiting portions (283) extending along the circumferential direction of the carding needle arc hole (27).

6. A self-cleaning type sintering cylinder according to claim 1, wherein The carding module (3) further comprises a rotating frame (32) and a counterweight tile (33), the rotating frame (32) is rotatably connected to the crank mechanism (12) of the crankshaft connecting rod (1), one end is fixedly connected with the carding base (31), and the opposite end is fixedly connected with the counterweight tile (33), and the weight of the counterweight tile (33) is the same as that of the carding base (31).

7. A self-cleaning type sintering cylinder according to claim 6, characterized in that, The crank mechanism (12) comprises a crank shaft (13) parallel to the main shaft (11), the rotating frame (32) is rotatably connected to the crank shaft (13), and the distance between the axis of the crank shaft (13) and the main shaft (11) is not less than the height of the carding needle head (26).

8. A self-cleaning type sintering cylinder according to claim 7, characterized in that, Both ends of the crank shaft (13) are fixedly connected with a connecting plate (14), and the side of the connecting plate (14) away from the crank shaft (13) is fixedly connected with the main shaft (11).

9. A self-cleaning type sintering cylinder according to claim 8, wherein The side of the carding base (31) slidingly connected with the inner wall of the limiting sliding groove is a plane, and the plane is parallel to the vertical line between the axis of the crank shaft (13) and the axis of the main shaft (11).

10. A straight comber comprising the self-cleaning cylinder according to any one of claims 1-9.

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