Collecting device for cotton web production of combing machine
By designing a combing machine cotton mesh collection device including a support frame, a funnel-shaped cotton mesh collection piece and an anti-blocking self-stop piece, the problems of cotton mesh clogging and friction fire are solved, and safe and efficient cotton mesh production is achieved.
Patent Information
- Application Number
- CN202422184978.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-06
AI Technical Summary
During the cotton mesh production process, the traditional combing machine cotton mesh collection device has safety hazards such as cotton mesh clogging and friction fire, resulting in low production efficiency and safety risks.
A collection device for combing machine cotton mesh production is designed, including supporting frames, funnel-shaped cotton mesh collection parts, connecting pipes, anti-blocking self-stop parts and other components. The device conveys the cotton mesh to the cotton condenser through negative pressure, and triggers the self-stop of blockage when the cotton mesh accumulates, and urgently stops the machine to prevent friction.
It effectively solves the problems of cotton mesh clogging and friction fire, improves production efficiency, ensures safe production, and improves the processing efficiency of cotton mesh through negative pressure transportation.
Smart Images

Figure CN223047662U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of cotton web production equipment, and more specifically to a collecting device for the production of cotton web by a comber. Background Art
[0002] In the production of colored spun yarn or semi-combed yarn, a large amount of fine web or ordinary web is required. These fine webs or ordinary webs have been preliminarily processed, and a large part of the impurities and short fibers have been removed. Some of the above-mentioned cotton webs are directly used for the production of spinning raw materials, and some are used for spinning production after loose fiber dyeing; since these cotton web raw materials have been pretreated, the product quality of the yarn can be effectively guaranteed. For the traditional fine web or ordinary web used in colored spun yarn or semi-combed yarn production, there is no special cotton web processing equipment during production. Instead, the sliver is processed by using the existing carding machine or comber, and then the sliver is broken by the drawframe or directly by manual operation. The broken sliver (web) is then transported to the baling machine for baling for subsequent use; in the above process, it is necessary to manually transport the cans and the webs, which also takes up the drawframe. At the same time, someone needs to be arranged to operate the drawframe and collect the falling flowers on site (the web is relatively fluffy and generally not much can be placed in a bag). Such traditional operations are time-consuming, energy-consuming, and also take up the cans and the drawframe, resulting in a large amount of manpower consumption, low production efficiency, and an unguaranteed production environment.
[0003] At present, textile factories have equipped with automated cotton web processing lines. The cotton web is directly sucked into the pipeline through the pipeline and by using the negative pressure of the condenser, and reaches the automatic baling machine for baling, realizing the continuous production of cotton web. However, in the actual production process, the cotton web collecting port often gets blocked at the suction port by the cotton web while the machine keeps running and rubbing, causing a great trouble to the continuous production and safety.
[0004] Therefore, how to provide a collecting device for the production of cotton web by a comber, which can overcome the above problems, is an urgent problem to be solved by those skilled in the art. Content of the Utility Model
[0005] In view of this, the utility model provides a collecting device for the production of cotton web by a comber.
[0006] In order to achieve the above object, the utility model adopts the following technical scheme:
[0007] A collecting device for the production of cotton web by a comber, connected to the comber, comprising:
[0008] A support frame, the support frame is fixed to the frame of the comber;
[0009] A cotton web collecting member, the cotton web collecting member is in a funnel shape and is horizontally placed, and the large-diameter end of the cotton web collecting member is directly opposite and communicated with the cotton web outlet position of the comber;
[0010] A connecting pipe, the connecting pipe is fixed to the support frame. A plug tube is integrally formed at the small-diameter end of the cotton web collecting member. The length direction of the plug tube is the same as the length direction of the cotton web collecting member. One end of the plug tube away from the cotton web collecting member is slidably and tightly inserted into the connecting pipe; the negative-pressure feeding end of the cotton condenser is communicated with one end of the connecting pipe away from the plug tube;
[0011] An anti-blocking and self-stopping member, the anti-blocking and self-stopping member includes a connecting member, a baffle, an adjusting rod, a balance weight and a push-button switch. An opening is formed in the side wall of the cotton web collecting member and the connecting member is inserted therethrough. The connecting member is horizontally rotatably connected to the cotton web collecting member and the two have a rotation axis line. The rotation axis line is located directly above the center line of the plug tube and the two are perpendicular to each other; the baffle is located inside the cotton web collecting member. The plate surface of the baffle is parallel to the rotation axis line. The baffle is arranged obliquely with respect to the horizontal plane. The upper end of the baffle is fixed to one end of the connecting member located inside the cotton web collecting member; one end of the adjusting rod is fixed to the end of the connecting member away from the baffle. The other end of the adjusting rod is provided with a contact head. The length direction of the adjusting rod is perpendicular to the rotation axis line; the balance weight is provided with an opening and sleeved on the adjusting rod; the push-button switch electrically connected to the comber and capable of controlling the start and stop of the comber is fixed on the cotton web collecting member. The contact head can abut against the pressing end of the push-button switch, and the contact head can trigger the push-button switch.
[0012] As can be seen from the above technical solutions, compared with the prior art, the present invention discloses a collecting device for the production of cotton webs of a comber. The cotton web moved out from the cotton web outlet of the comber can be reliably transported to the cotton condenser by negative pressure, so as to facilitate the next processing of the cotton web; by designing the anti-blocking and self-stopping member, when the collecting device in this application is working, when the cotton web accumulates inside the cotton web collecting member, the cotton web inside the cotton web collecting member will push the baffle, causing the baffle to rotate clockwise around the rotation axis line, and then causing the contact head to move downward clockwise. The contact head will abut against the pressing end of the push-button switch and trigger the push-button switch, so that the comber stops urgently; ensuring the safe production of the cotton web, preventing the cotton web from rubbing excessively against the mechanical rotating parts of the comber, that is, preventing the cotton web from rubbing excessively against the front top roller or the front roller on the comber, and avoiding the occurrence of fire; by adjusting the position of the balance weight on the adjusting rod, the inclination angle of the baffle relative to the horizontal plane can be adjusted, and further the sensitivity of the anti-blocking and self-stopping member can be adjusted.
[0013] Preferably, it further includes a main air duct, a branch air duct, and a telescopic hose. The negative-pressure feeding end of the cotton condenser is communicated with one end of the main air duct. One end of the branch air duct is communicated with the main air duct, and the other end of the branch air duct can be communicated with one end of the telescopic hose. The other end of the telescopic hose is communicated with the end of the connecting pipe away from the insertion pipe. The cotton web collector and the cotton condenser can be reliably communicated.
[0014] Preferably, it further includes a limit box, a throttle plate, and a positioning pin. One end of the limit box is open, the throttle plate can be slidably and tightly inserted into the limit box. The limit box is provided with a positioning hole, and the throttle plate is provided with a jack. The positioning pin can be inserted into the positioning hole and the jack at the same time; the branch air duct includes a first branch air duct and a second branch air duct. Two opposite side walls of the limit box are respectively provided with a through hole one and a through hole two that are opposite in position. The throttle plate can block the through hole one and the through hole two at the same time. The center line of the through hole one and the center line of the through hole two are both perpendicular to the length direction of the limit box. One end of the first branch air duct is communicated with the main air duct, and the other end of the first branch air duct is communicated with the through hole one; one end of the second branch air duct can be communicated with the telescopic hose, and the other end of the second branch air duct is communicated with the through hole two. When the comber produces sliver, the branch air duct can be blocked by the throttle plate.
[0015] Preferably, it further includes an adjusting device. The adjusting device includes a nut, a bolt, and a limit ring. The nut is fixed on the outer side wall of the cotton web collector, the limit ring is fixed on the outer side wall of the connecting pipe, and one end of the bolt is screwed with the nut after passing through the limit ring. The center line of the bolt is parallel to the center line of the insertion pipe. The cotton web collector can reliably suck the cotton web from the comber by negative pressure.
[0016] Preferably, the adjusting rod is an external threaded rod, and the balance block is provided with a threaded hole. The balance block is screwed on the adjusting rod. The balance block can change its position on the adjusting rod.
[0017] Preferably, the contour of the large-diameter end of the cotton web collector is rectangular. The length direction of the large-diameter end of the cotton web collector is the same as the length direction of the cotton web outlet of the comber, and the width of the large-diameter end of the cotton web collector is greater than the width of the cotton web outlet of the comber. The large-diameter end of the cotton web collector with a rectangular contour can reliably suck the cotton web. Description of the Drawings
[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.
[0019] Figure 1 is a schematic structural diagram of a collecting device for the production of a cotton web in a comber;
[0020] Figure 2 is Figure 1 a partial enlarged view of part A in
[0021] Figure 3 is Figure 1 a partial enlarged view of part B in
[0022] In the figure:
[0023] 1 is a support frame, 2 is a cotton web collecting member, 20 is an insertion tube, 3 is a connecting pipe, 4 is a cotton condenser, 5 is a baling machine, 6 is a connecting member, 7 is a baffle, 8 is an adjusting rod, 9 is a balance weight, 10 is a push-button switch, 11 is a main air duct, 12 is a branch air duct, 120 is branch air duct one, 121 is branch air duct two, 13 is a telescopic hose, 14 is a limit box, 15 is a throttle plate, 16 is a positioning pin, 17 is a nut, 18 is a bolt, 19 is a limit ring. Specific embodiments
[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.
[0025] The present invention discloses a collecting device for the production of a cotton web in a comber. The cotton web moved out from the cotton web outlet of the comber can be reliably transported to the cotton condenser 4 by negative pressure, so as to facilitate the next processing of the cotton web;
[0026] By designing a blockage prevention and self - stopping component, when the collecting device in this application is working, when the cotton web accumulates inside the cotton web collecting component 2, the cotton web inside the cotton web collecting component 2 will push the baffle 7, causing the baffle 7 to rotate clockwise around the rotation axis line. As a result, the contact moves downward clockwise, and the contact will abut against the pressing end of the push - button switch 10 and trigger the push - button switch 10, thereby causing the comber to stop urgently; ensuring the safe production of the cotton web, preventing the cotton web from excessive friction with the mechanical rotating parts of the comber, that is, preventing the cotton web from excessive friction with the front top roller or front roller on the comber, and avoiding the occurrence of fire;
[0027] By adjusting the position of the balance weight 9 on the adjusting rod 8, the inclination angle of the baffle 7 relative to the horizontal plane can be adjusted, and further the sensitivity of the blockage prevention and self - stopping component can be adjusted;
[0028] By designing an adjusting device, by rotating the bolt 18, the distance between the large - diameter end of the cotton web collecting component 2 and the cotton web outlet of the comber can be adjusted, so that the cotton web collecting component 2 has a suitable negative - pressure pumping capacity, ensuring that the cotton web can be smoothly transported from the cotton web outlet of the comber to the cotton web collecting component 2 under negative pressure;
[0029] By designing the limit box 14, the intercepting plate 15 and the positioning pin 16, when the above - mentioned comber needs to produce sliver, that is, when switching production, the intercepting plate 15 can be used to block the branch air duct 12, and at the same time, the telescopic hose 13 can be temporarily detached from the branch air duct 12, avoiding the influence of the negative pressure at the cotton web collecting component 2 on the quality of the produced comber sliver; this collecting device will not affect the normal production of the comber sliver corresponding to it.
[0030] Embodiment
[0031] See the appendix Figures 1-3 It is a schematic diagram of the overall and partial structures of an embodiment of the present utility model. The present utility model specifically discloses a collecting device for the production of cotton web of a comber, which is connected to the comber and includes:
[0032] The support frame 1, and the support frame 1 is fixedly connected to the frame of the comber;
[0033] The cotton web collecting component 2, the cotton web collecting component 2 is in the shape of a flat funnel and is horizontally placed. The cotton web collecting component 2 is formed by bending and welding an iron plate. The large - diameter end of the cotton web collecting component 2 is provided with an arc - shaped curled edge to prevent the large - diameter end of the cotton web collecting component 2 from hanging cotton or snagging the cotton web; the large - diameter end of the cotton web collecting component 2 is directly opposite to and communicated with the cotton web outlet of the comber; the combed cotton web is drafted by the drafting device of the comber, and the cotton web fibers are transported forward along the tangent direction under the grip of the high - speed running rollers and top rollers. Since the cotton web collecting component 2 is directly opposite to the cotton web outlet of the comber, and the cotton web collecting component 2 is connected to the condensing device 4, the cotton web removed from the comber will be sucked into the cotton web collecting component 2 under negative pressure;
[0034] Connecting pipe 3, the connecting pipe 3 is fixed to the support frame 1. The connecting pipe 3 in this application is an arc-shaped bent pipe. The plane defined by the center line of the pipe of the connecting pipe 3 is arranged vertically. A socket 20 is integrally formed at the small-diameter end of the cotton web collector 2. The length direction of the pipe of the socket 20 is the same as the length direction of the cotton web collector 2. One end of the socket 20 away from the cotton web collector 2 is slidably and tightly inserted into the connecting pipe 3; the length of the socket 20 inserted into the connecting pipe 3 is different. Correspondingly, the distance between the large-diameter end of the cotton web collector 2 and the cotton web outlet of the comber will also change. By adjusting the length of the socket 20 inserted into the connecting pipe 3, it can be ensured that the suction force at the large-diameter end of the cotton web collector 2 meets the requirements, and the cotton web can smoothly enter the cotton web collector 2;
[0035] The negative-pressure feeding end of the cotton condenser 4 is communicated with one end of the connecting pipe 3 away from the socket 20. The cotton web removed from the comber will be adsorbed into the cotton web collector 2. The cotton web in the cotton web collector 2 will be transported to the cotton condenser 4 under negative pressure; the discharging end of the cotton condenser 4 is connected to the inlet of the automatic baler 5. The cotton web removed from the cotton condenser 4 will enter the automatic baler 5 for baling. The cotton condenser 4 and the automatic baler 5 are both prior arts;
[0036] Anti-blocking self-stop component, the anti-blocking self-stop component includes a connecting piece 6, a baffle 7, an adjusting rod 8, a balance weight 9 and a push-button switch 10;
[0037] An opening is formed on the side wall of the cotton web collector 2 and the connecting piece 6 is inserted therethrough. The connecting piece 6 is horizontally rotatably connected to the cotton web collector 2 and the two have a rotation axis line. The rotation axis line is located directly above the center line of the pipe of the socket 20 and the two are perpendicular to each other. The connecting piece 6 can rotate flexibly around the rotation axis line;
[0038] The baffle 7 is located inside the cotton web collector 2. The plate surface of the baffle 7 is parallel to the rotation axis line. The baffle 7 is arranged obliquely relative to the horizontal plane. The upper end of the baffle 7 is fixed to one end of the connecting piece 6 located inside the cotton web collector 2. The upper end of the baffle 7 is located between the lower end of the baffle 7 and the large-diameter end of the cotton web collector 2;
[0039] One end of the adjusting rod 8 is fixed to the end of the connecting piece 6 away from the baffle 7. The other end of the adjusting rod 8 is provided with a contact head. The length direction of the rod of the adjusting rod 8 is perpendicular to the rotation axis line; the balance weight 9 is provided with an opening and sleeved on the adjusting rod 8;
[0040] The push-button switch 10 that is electrically connected to the comber and can control the on / off of the comber is fixed on the cotton web collector 2. The contact head can abut against the pressing end of the push-button switch 10, and the contact head can trigger the push-button switch 10;
[0041] Under normal conditions, that is, when there is no cotton web blocked inside the cotton web collecting member 2, the baffle 7 is arranged obliquely with respect to the horizontal plane, and the contact head will not abut against the pressing end of the push-button switch 10; when there is a cotton web blocked inside the cotton web collecting member 2, the cotton web accumulated inside the cotton web collecting member 2 will push up the baffle 7 upward, and the baffle 7 will rotate clockwise around the rotation axis line, thereby causing the contact head to move downward clockwise, and the contact head will abut against the pressing end of the push-button switch 10 and trigger the push-button switch 10, so that the comber will stop urgently;
[0042] The purpose of designing the balance weight 9 is to ensure that the baffle 7 can be stably arranged obliquely with respect to the horizontal plane under normal conditions.
[0043] More specifically, it further includes a main air duct 11, a branch air duct 12 and a telescopic hose 13. The negative pressure feeding end of the lint condenser 4 is communicated with one end of the main air duct 11. The branch air duct 12 is arranged vertically. One end of the branch air duct 12 is communicated with the main air duct 11. The other end of the branch air duct 12 can be communicated with one end of the telescopic hose 13 in a plug-in manner. The other end of the telescopic hose 13 is communicated with the end of the connecting pipe 3 far away from the insertion pipe 20.
[0044] More specifically, it further includes a limit box 14, a shut-off plate 15 and a positioning pin 16. One end of the limit box 14 is open. The shut-off plate 15 is a rectangular plate and one end of it is bent with a limit plate. The shut-off plate 15 can be slidably and tightly inserted into the limit box 14. The limit plate can abut against the open end of the limit box 14 to prevent the shut-off plate 15 from being inserted too deep and ensure that it is convenient to pull out the shut-off plate 15 later. There is a positioning hole on the limit box 14 and a jack on the shut-off plate 15. The positioning pin 16 can be inserted into the positioning hole and the jack at the same time; on the one hand, by adjusting the length of the shut-off plate 15 inserted into the limit box 14, the negative pressure suction capacity of the cotton web collecting member 2 can be adjusted. On the other hand, the comber can produce both cotton web and combed sliver. When the comber produces combed sliver, the branch air duct 12 can be blocked by the shut-off plate 15, and at the same time, the telescopic hose 13 can be temporarily detached from the branch air duct 12 to avoid the negative pressure at the cotton web collecting member 2 affecting the quality of the produced combed sliver; the end of the shut-off plate 15 far away from the limit plate is always located inside the limit box 14, so as to block the entrance of the limit box 14 and avoid pressure relief at the open end of the limit box 14.
[0045] The branch air duct 12 includes the first branch air duct 120 and the second branch air duct 121. Opposite upper and lower side walls of the limit box 14 are respectively provided with a circular through hole one and a through hole two that are in alignment. The plate area of the intercepting plate 15 is larger than the hole areas of the through hole one and the through hole two. The intercepting plate 15 can block the through hole one and the through hole two simultaneously. The hole center line of the through hole one and the hole center line of the through hole two are both perpendicular to the length direction of the limit box 14. One end of the first branch air duct 120 is communicated with the main air duct 11, and the other end of the first branch air duct 120 is communicated with the through hole one; one end of the second branch air duct 121 can be communicated with the telescopic hose 13, and the other end of the second branch air duct 121 is communicated with the through hole two.
[0046] More specifically, it further includes an adjusting device. The adjusting device includes a nut 17, a bolt 18, and a limit ring 19. The nut 17 is fixed on the outer side wall of the cotton web collecting member 2, the limit ring 19 is fixed on the outer side wall of the connecting pipe 3, one end of the bolt 18 is screwed with the nut 17 after passing through the limit ring 19, and the center line of the bolt 18 is parallel to the pipe center line of the inserting pipe 20.
[0047] The adjusting rod 8 is an outer threaded rod, and the balancing block 9 is provided with a threaded hole. The balancing block 9 is screwed on the adjusting rod 8. By rotating the balancing block 9, the position of the balancing block 9 on the adjusting rod 8 can be adjusted.
[0048] The contour of the large-diameter end of the cotton web collecting member 2 is rectangular. In this embodiment, the length of the large-diameter end of the cotton web collecting member 2 is 20 cm, and the width is 8 cm; the length direction of the large-diameter end of the cotton web collecting member 2 is the same as the length direction of the cotton web outlet of the comber, the width of the large-diameter end of the cotton web collecting member 2 is larger than the width of the cotton web outlet of the comber, and the difference between the width of the large-diameter end of the cotton web collecting member 2 and the width of the cotton web outlet of the comber is 1 cm - 2 cm.
[0049] The cotton web outlet of the comber is located on the lower side of the large-diameter end of the cotton web collecting member 2. The end face of the large-diameter end of the cotton web collecting member 2 is arranged obliquely relative to the horizontal plane, and the inclination direction is the same as the inclination direction of the baffle 7.
[0050] When the collecting device is working, the negative pressure feeding end of the cotton condenser 4 is communicated with the cotton web collecting member 2 through the main air duct 11, the branch air duct 12, the telescopic hose 13, and the connecting pipe 3. The cotton web removed from the comber will be sucked by negative pressure into the cotton web collecting member 2 and finally enter the cotton condenser 4;
[0051] When the cotton web collecting member 2 sucks in an excessive amount of cotton web, the cotton web inside the cotton web collecting member 2 will gradually push up the baffle 7 upward. The baffle 7 will rotate clockwise around the rotation axis line, and then the contact head will move downward clockwise. The contact head will abut against the pressing end of the push-button switch 10 and trigger the push-button switch 10, so that the comber will stop urgently;
[0052] When the comber produces the combed sliver, the branch air duct 12 can be blocked by the intercepting plate 15, and at the same time, the telescopic hose 13 can be temporarily detached from the branch air duct 12 to avoid the negative pressure at the cotton web collector 2 from affecting the quality of the produced combed sliver.
[0053] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other.
[0054] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A collection device for the production of cotton webs from a combing machine, connected to a combing machine, characterized in that: include: A support frame (1), wherein the support frame (1) is fixed to a frame of the combing machine; A cotton web collecting piece (2), the cotton web collecting piece (2) is funnel-shaped and horizontally placed, and the large-diameter end of the cotton web collecting piece (2) is directly opposite to and connected to the cotton web outlet of the combing machine; A connecting tube (3), the connecting tube (3) is fixed to the supporting frame (1), the small-diameter end of the cotton net collecting piece (2) is integrally formed with an insert tube (20), the tube length direction of the insert tube (20) is the same as the length direction of the cotton net collecting piece (2), and the end of the insert tube (20) away from the cotton net collecting piece (2) is slidably and tightly inserted in the connecting tube (3); the negative pressure feed end of the cotton condenser (4) is connected to the end of the connecting tube (3) away from the insert tube (20); The anti-blocking self-stopping component comprises a connecting component (6), a baffle (7), an adjusting rod (8), a balancing block (9) and a push-type switch (10); the side wall of the cotton net collecting component (2) is opened and penetrated by the connecting component (6); the connecting component (6) is horizontally rotatably connected to the cotton net collecting component (2) and the two have a rotation axis, the rotation axis is located directly above the center line of the insert tube (20) and the two are perpendicular to each other; the baffle (7) is located on the inner side of the cotton net collecting component (2), the plate surface of the baffle (7) is parallel to the rotation axis, the baffle (7) is arranged inclined relative to the horizontal plane, and the upper side of the baffle (7) is One end of the adjusting rod (8) is fixed to one end of the connecting piece (6) located on the inner side of the cotton web collecting piece (2); one end of the adjusting rod (8) is fixed to one end of the connecting piece (6) away from the baffle (7), and the other end of the adjusting rod (8) is provided with a contact, and the length direction of the adjusting rod (8) is perpendicular to the axis of rotation; the balancing block (9) has a hole and is mounted on the adjusting rod (8); the push switch (10) electrically connected to the combing machine and capable of controlling the on / off of the combing machine is fixed to the cotton web collecting piece (2), and the contact can abut against the pressing end of the push switch (10), and the contact can trigger the push switch (10).
2. A collecting device for producing cotton web of a combing machine according to claim 1, characterized in that: It also includes a main air duct (11), a branch air duct (12) and a telescopic hose (13); the negative pressure feeding end of the cotton condenser (4) is connected to one end of the main air duct (11); one end of the branch air duct (12) is connected to the main air duct (11); the other end of the branch air duct (12) can be connected to one end of the telescopic hose (13); the other end of the telescopic hose (13) is connected to one end of the connecting pipe (3) away from the insert pipe (20).
3. A collecting device for producing cotton web of a combing machine according to claim 2, characterized in that: The invention also comprises a limit box (14), a cut-off plate (15) and a positioning pin (16); one end of the limit box (14) is open, the cut-off plate (15) can be slidably and tightly inserted in the limit box (14); the limit box (14) is provided with a positioning hole, the cut-off plate (15) is provided with an insertion hole, and the positioning pin (16) can be inserted into the positioning hole and the insertion hole at the same time; the branch air duct (12) comprises a branch air duct 1 (120) and a branch air duct 2 (121); two opposite side walls of the limit box (14) are respectively provided with a positive position With respect to through hole one and through hole two, the shutoff plate (15) can simultaneously block the through hole one and through hole two, the center line of the through hole one and the center line of the through hole two are both perpendicular to the length direction of the limit box (14), one end of the branch air duct one (120) is connected to the main air duct (11), and the other end of the branch air duct one (120) is connected to the through hole one; one end of the branch air duct two (121) can be connected to the telescopic hose (13), and the other end of the branch air duct two (121) is connected to the through hole two.
4. A collecting device for producing cotton web of a combing machine according to claim 1, characterized in that: The invention also comprises an adjusting device, which comprises a nut (17), a bolt (18) and a limiting ring (19), wherein the nut (17) is fixed on the outer wall of the cotton net collecting member (2), and the limiting ring (19) is fixed on the outer wall of the connecting tube (3), and one end of the bolt (18) is screwed to the nut (17) after passing through the limiting ring (19), and the center line of the bolt (18) is parallel to the center line of the tube of the inserting tube (20).
5. A collecting device for producing cotton web of a combing machine according to claim 1, characterized in that: The adjusting rod (8) is an externally threaded rod, a threaded hole is provided on the balancing block (9), and the balancing block (9) is screwed onto the adjusting rod (8).
6. A collecting device for producing cotton web of a combing machine according to claim 1, characterized in that: The outline of the large-diameter end of the cotton web collecting piece (2) is rectangular, the length direction of the large-diameter end of the cotton web collecting piece (2) is the same as the length direction of the cotton web outlet of the combing machine, and the width of the large-diameter end of the cotton web collecting piece (2) is greater than the width of the cotton web outlet of the combing machine.