A combing machine

Abstract

The utility model provides a kind of comb, it is related to the field of comb, the scheme used is: including the conveying belt for conveying sliver, the lower part of the discharging end of conveying belt is provided with driving press roll and passive press roll, driving press roll rotation is arranged on fixed seat, passive press roll rotation is arranged on rotating seat, the rotating seat rotation is arranged, one side of the conveying belt is provided with photoelectric switch, the photoelectric switch is used to detect whether the sliver on the conveying belt is broken, the opposite side of the rotating seat is provided with pusher, the pusher can push rotating seat swing, when the rotating seat swings, the compact surface of passive press roll is separated from the compact surface of driving press roll.The utility model can avoid two ring sliver press roll dry friction after broken, reduce abrasion, prolong the service life of ring sliver press roll.

Description

Technical Field

[0001] This utility model relates to the field of combing machines, and more particularly to a combing machine. Background Technology

[0002] In a combing machine, the coil pressure rollers include active pressure rollers and passive pressure rollers. The active pressure rollers drive the passive pressure rollers to rotate through friction. Through the action of the active and passive pressure rollers, the combed cotton sliver conveyed by the conveyor belt can be compressed, improving the cohesion of the cotton sliver. In actual production, the cotton sliver breaks after drafting. The broken sliver cannot reach the conveyor belt and accumulates more and more at the front end of the conveyor belt, resulting in a large amount of waste. Furthermore, the increasing accumulation of cotton fibers can cause damage to machine parts such as pressure rollers, and in severe cases, even cause safety hazards such as fires.

[0003] In the prior art, Chinese invention patent application CN105483872A discloses a combing machine conveyor belt sliver breakage self-stop device. The active pressure roller drives the passive pressure roller to rotate via the conveyor belt carrying cotton slivers. The belt tensioner is located between the active pressure roller and the passive pressure roller. The frame between the passive pressure roller and the belt tensioner, and on both sides of the conveyor belt, are respectively equipped with a transmitting photoelectric sensor and a receiving photoelectric sensor. The transmitting photoelectric sensor and the receiving photoelectric sensor are aligned with the cotton slivers on the conveyor belt. Utilizing the effect of the white cotton slivers on the conveyor belt blocking the infrared beam, the receiving switch can detect the presence of cotton slivers in front of it. Once a sliver breakage is detected, the photoelectric sensor controls the normally open contact to activate, and sends an electrical signal to control the equipment to stop.

[0004] When using the above technical solution, there is a certain response time from when the photoelectric switch sends a signal to when the equipment stops until the coil pressure roller overcomes inertia and stops rotating. During the response time, the relevant components are constantly rotating. The active pressure roller and the passive pressure roller may run without cotton sliver, causing direct contact between the metal roller surfaces and friction, which will lead to rapid wear of the pressure roller surface and increase maintenance costs. Utility Model Content

[0005] In order to solve the technical problem of dry friction between the coiling rollers of the combing machine after the sliver breaks, the present invention provides a combing machine that can avoid dry friction between the two coiling rollers after the sliver breaks, reduce wear, and extend the service life of the coiling rollers.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a combing machine, including a conveyor belt for conveying cotton slivers, an active pressure roller and a passive pressure roller are provided at the lower part of the discharge end of the conveyor belt, the active pressure roller is rotatably mounted on a fixed seat, the passive pressure roller is rotatably mounted on a rotating seat, the rotating seat is rotatably mounted, a photoelectric switch is provided on one side of the conveyor belt, the photoelectric switch is used to detect whether the cotton sliver on the conveyor belt is broken, a pushing member is provided on the opposite side of the rotating seat, the pushing member can push the rotating seat to swing, when the rotating seat swings, the pressing surface of the passive pressure roller separates from the pressing surface of the active pressure roller.

[0007] This invention, by setting a pusher, can immediately push the passive pressure roller to separate from the active pressure roller after the strip breaks. Even if it continues to rotate within the response time, the two pressing surfaces will not continue to contact and generate dry friction, thereby reducing wear and extending the service life of the active and passive pressure rollers.

[0008] Furthermore, the rotating seat includes a seat body and a swing arm, the swing arm being disposed on one side of the seat body, and the pushing member being able to abut against the end of the swing arm away from the seat body.

[0009] This invention increases the torque by setting a swing arm to extend the lever arm of the pushing component, making the rotating seat easier to push.

[0010] Furthermore, the pusher is a single-acting cylinder, and the pusher is connected to the air source through a solenoid valve.

[0011] Furthermore, a groove is provided on the side of the seat near the fixed seat, and a protrusion is provided at the corresponding position of the fixed seat. The protrusion extends into the groove, and the seat is rotatably connected to the protrusion. A spring is provided between the seat and the machine body, and the spring is hinged to the machine body. An adjusting bolt is screwed onto the seat, and the adjusting bolt extends into the groove.

[0012] This invention uses a spring and an adjusting bolt to adjust the distance between the active and passive pressure rollers, preventing excessive tightness that could affect the quality of the cotton sliver.

[0013] Furthermore, a second spring is provided between the groove and the protrusion. The second spring is sleeved on the adjusting bolt. When the pushing member pushes the rotating seat to rotate, the second spring extends.

[0014] This utility model, by setting a second spring, reduces the impact of the adjusting bolt on the fixed seat after the seat body rotates. On the other hand, it enables the seat body and the fixed seat to have a self-adjusting function, which can automatically and sensitively adjust the distance between the two according to the thickness of the cotton strip, thereby improving adaptability. Thirdly, the pushing action of the second spring on the rotating seat can reduce the rotation resistance of the seat body, making it easier for the passive pressure roller and the active pressure roller to separate.

[0015] Furthermore, both the active pressure roller and the passive pressure roller have multiple teeth on their pressing surfaces, and these teeth are evenly distributed circumferentially.

[0016] Furthermore, a maintenance handle is provided on the rotating base.

[0017] Furthermore, it also includes a machine body, on which a coiled tube is provided on the platform of the machine body, and a guide plate is provided on the fixed seat. The guide plate and the coiled tube are respectively located on the upper and lower sides of the meshing position of the active pressure roller and the passive pressure roller.

[0018] As can be seen from the above technical solutions, this utility model has the following advantages: This utility model provides a combing machine. By setting a pushing component, it can immediately push the passive pressure roller and the active pressure roller to separate after the sliver breaks. Even if the rotation continues within the response time, the two pressing surfaces will not continue to contact and generate dry friction, thereby reducing wear and extending the service life of the active and passive pressure rollers. By setting a swing arm to increase the lever arm of the pushing component, the torque is increased, making the rotating seat easier to push. The distance between the active and passive pressure rollers can be adjusted by the cooperation of spring one and adjusting bolt to avoid improper meshing and affecting the sliver quality. By setting spring two, on the one hand, the impact of the adjusting bolt on the fixed seat after the seat rotates is reduced, and on the other hand, the seat and the fixed seat have a self-adjusting function, which can automatically and sensitively adjust the distance between them according to the thickness of the sliver, improving adaptability. Thirdly, the pushing action of spring two on the rotating seat can reduce the rotation resistance of the seat, making it easier for the passive pressure roller and the active pressure roller to separate. Attached Figure Description

[0019] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a partial structural diagram of a specific embodiment of the present utility model.

[0021] Figure 2 This is a schematic diagram of the assembly structure of the seat and the fixed seat in a specific embodiment of this utility model.

[0022] Figure 3 This is a schematic diagram of the rotating seat and the fixed seat in the working state in a specific embodiment of this utility model.

[0023] Figure 4This is a schematic diagram of the rotating seat and the fixed seat in the broken state in a specific embodiment of this utility model.

[0024] In the diagram, 1. Conveyor belt; 2. Photoelectric switch; 3. Cotton strip; 4. Seat; 5. Guide plate; 6. Fixed seat; 7. Active pressure roller; 8. Coil tube; 9. Passive pressure roller; 10. Swing arm; 11. Pushing component; 12. Maintenance handle; 13. Spring 1; 15. Adjusting bolt; 16. Spring 2; 17. Tooth; 18. Groove; 19. Rotating seat; 20. Protrusion. Detailed Implementation

[0025] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0026] like Figures 1 to 4 As shown in the figure, this specific embodiment provides a combing machine, including a conveyor belt 1 for conveying cotton slivers 3. An active pressure roller 7 and a passive pressure roller 9 are arranged at the lower part of the discharge end of the conveyor belt 1. The active pressure roller 7 is connected to a drive motor and is rotatably mounted on a fixed base 6 via corresponding support shafts and bearings. The passive pressure roller 9 is rotatably mounted on a rotating base 19 via corresponding support shafts and bearings. The rotating base 19 is rotatably mounted. The active pressure roller 7 can drive the passive pressure roller 9 to rotate through friction. A photoelectric switch is arranged on one side of the conveyor belt 1. 2. The photoelectric switch 2 is located near the discharge end of the conveyor belt 1, which can detect the breakage phenomenon early. The photoelectric switch 2 is a reflective photoelectric switch. The photoelectric switch 2 is used to detect whether the cotton sliver 3 on the conveyor belt 1 is broken. A pusher 11 is provided on the opposite side of the rotating seat 19. The pusher 11 can push the rotating seat 19 to swing. When the rotating seat 19 swings, the pressing surface of the passive pressure roller 9 separates from the pressing surface of the active pressure roller 7 and no longer makes frictional contact. The photoelectric switch 2 and the pusher 11 are both electrically connected to the controller of the combing machine.

[0027] In this specific embodiment, by setting a pusher 11, after the photoelectric switch 2 detects the broken bar, the pusher 11 immediately pushes the passive pressure roller 9 to separate from the active pressure roller 7. Even if the active pressure roller 7 continues to rotate due to inertia or other reasons within the response time, the pressing surfaces of the active pressure roller 7 and the passive pressure roller 9 will not continue to contact each other and generate dry friction, thereby reducing wear and extending the service life of the active pressure roller 7 and the passive pressure roller 9.

[0028] like Figure 1 , Figure 3 and Figure 4 As shown in this specific embodiment, in order to facilitate pushing the rotating seat 19, the rotating seat 19 includes a seat body 4 and a swing arm 10. The swing arm 10 is disposed on one side of the seat body 4, and the pushing member 11 can abut against the end of the swing arm 10 away from the seat body 4. By setting the swing arm 10 to increase the lever arm of the pushing member 11, the torque is increased, making the rotating seat 19 easier to push.

[0029] The pusher 11 can be an electric telescopic rod. In this specific embodiment, in order to speed up the response of the pusher 11, the pusher 11 adopts a single-acting cylinder. The pusher 11 is connected to the air source through a solenoid valve. The solenoid valve is electrically connected to the controller of the combing machine. A buffer pad is provided at the end of the piston rod of the single-acting cylinder.

[0030] like Figure 2 As shown, in this specific embodiment, the seat 4 has a groove 18 on the side near the fixed seat 6, and a protrusion 20 is provided at the corresponding position of the fixed seat 6. The protrusion 20 extends into the groove 18. The seat 4 and the protrusion 20 are rotatably connected by a rotating shaft and a bearing. A spring 13 is provided between the side of the seat 4 near the vertical wall of the combing machine body and the vertical wall. The spring 13 is inclined, with one end of the spring 13 hinged to the vertical wall and the other end of the spring 13 hinged to the seat 4. The body 4 is screwed with an adjusting bolt 15, which extends into the groove 18 and protrudes from the nut at the bottom of the groove 18. When it is necessary to increase the distance between the active pressure roller 7 and the passive pressure roller 9, the adjusting bolt 15 is rotated to extend it and abut against the fixed seat 6, and the spring 13 is compressed and shortened. When it is necessary to reduce the distance, the adjusting bolt is rotated in the opposite direction. To prevent the spring 13 from deforming, in this specific embodiment, the spring 13 includes a constraint shell, and a spring body and a moving rod are arranged inside the constraint shell. The two ends of the spring body abut against the bottom of the constraint shell and the end of the moving rod, respectively. The end of the moving rod is hinged to the seat body 4, and the constraint shell is hinged to the vertical wall. When the seat body 4 swings, it can prevent the spring body from undergoing large torsional deformation and extend the service life of the spring body. Preferably, a second spring 16 is provided between the groove 18 and the protrusion 20. The end of the second spring 16 is connected to the bottom of the groove 18. The second spring 16 is sleeved on the adjusting bolt 15. When the pushing member 11 pushes the rotating seat 19 to rotate, the second spring 16 extends. By setting the second spring 16, on the one hand, the impact of the adjusting bolt 15 on the fixed seat 6 after the seat body 4 rotates is reduced. On the other hand, by setting the second spring 16, the adjusting bolt 15 does not directly abut against the groove 18, so that the seat body 4 and the fixed seat 6 have a self-adjusting function, which can automatically and sensitively adjust the spacing according to the thickness of the cotton strip 3, improving adaptability. Thirdly, the pushing action of the second spring 16 on the rotating seat 19 can reduce the rotation resistance of the seat body 4, making it easier for the passive pressure roller 9 and the active pressure roller 7 to separate.

[0031] like Figure 2 As shown, in this specific embodiment, in order to increase friction and avoid slippage, multiple teeth 17 are provided on the pressing surfaces of both the active pressure roller 7 and the passive pressure roller 9, and the multiple teeth 17 are evenly distributed in the circumferential direction; for convenient maintenance, a maintenance handle 12 is provided on the rotating seat 19, and by providing the maintenance handle 12, the seat body 4 can be directly rotated during maintenance to increase the distance between the active pressure roller 7 and the passive pressure roller 9.

[0032] like Figure 1 As shown, this combing machine also includes a machine body, on which a coiled tube 8 is provided, and on the fixed base 6 a guide plate 5 is provided, with a feed inlet on the guide plate 5. The guide plate 5 and the coiled tube 8 are respectively located on the upper and lower sides of the meshing position of the active pressure roller 7 and the passive pressure roller 9.

[0033] The working process of this combing machine in automatically stopping when the sliver breaks is as follows: When the photoelectric switch 2 cannot detect the cotton strip 3 at the corresponding position, it sends an electrical signal to the controller. The controller determines that the strip is broken. At this time, the controller stops the equipment and simultaneously controls the pusher 11 to extend, pushing the swing arm 10 to drive the seat 4 to rotate. At this time, both the second spring 16 and the first spring 13 are stretched. The seat 4 drives the passive pressure roller 9 to rotate at a certain angle and no longer meshes with the active pressure roller 7. When the active pressure roller 7 and the passive pressure roller 9 rotate due to inertia, the pressing surfaces no longer contact each other and no dry friction is generated.

[0034] As can be seen from the above specific embodiments, this utility model has the following beneficial effects: 1. By setting the pusher 11, the passive pressure roller 9 can be pushed to separate from the active pressure roller 7 immediately after the strip breaks. Even if it continues to rotate within the response time, the two pressing surfaces will not continue to contact and generate dry friction, thereby reducing wear and extending the service life of the active pressure roller 7 and the passive pressure roller 9. 2. By setting the swing arm 10 to increase the lever arm of the pushing component 11, the torque is increased, making the rotating seat 19 easier to push; 3. The distance between the active pressure roller 7 and the passive pressure roller 9 can be adjusted by the cooperation of spring 13 and adjusting bolt 15 to avoid improper engagement and affect the quality of cotton sliver 3; 4. By setting spring 2 16, on the one hand, the impact of adjusting bolt 15 on fixed seat 6 after seat 4 rotates is reduced. On the other hand, it enables seat 4 and fixed seat 6 to have self-adjusting function, which can automatically and sensitively adjust the distance between them according to the thickness of cotton strip 3, thereby improving adaptability. Thirdly, the pushing action of spring 2 16 on rotating seat 19 can reduce the rotation resistance of seat 4, making it easier for passive pressure roller 9 and active pressure roller 7 to separate.

[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A combing machine, comprising a conveyor belt (1) for conveying cotton slivers (3), wherein an active pressure roller (7) and a passive pressure roller (9) are provided at the lower part of the discharge end of the conveyor belt (1), the active pressure roller (7) being rotatably mounted on a fixed seat (6), and the passive pressure roller (9) being rotatably mounted on a rotating seat (19), wherein the rotating seat (19) is rotatably mounted, characterized in that, A photoelectric switch (2) is provided on one side of the conveyor belt (1). The photoelectric switch (2) is used to detect whether the cotton strip (3) on the conveyor belt (1) is broken. A pusher (11) is provided on the opposite side of the rotating seat (19). The pusher (11) can push the rotating seat (19) to swing. When the rotating seat (19) swings, the pressing surface of the passive pressure roller (9) separates from the pressing surface of the active pressure roller (7).

2. The combing machine as described in claim 1, characterized in that, The rotating seat (19) includes a seat body (4) and a swing arm (10). The swing arm (10) is disposed on one side of the seat body (4), and the pusher (11) is able to abut against the end of the swing arm (10) away from the seat body (4).

3. The combing machine as described in claim 2, characterized in that, The pusher (11) is a single-acting cylinder, and the pusher (11) is connected to the air source through a solenoid valve.

4. The combing machine as described in claim 3, characterized in that, The seat (4) has a groove (18) on one side near the fixed seat (6), and the fixed seat (6) has a protrusion (20) at the corresponding position. The protrusion (20) extends into the groove (18), and the seat (4) is rotatably connected to the protrusion (20). A spring (13) is provided between the seat (4) and the machine body. The spring (13) is hinged to the machine body. An adjusting bolt (15) is screwed onto the seat (4), and the adjusting bolt (15) extends into the groove (18).

5. The combing machine as described in claim 4, characterized in that, A second spring (16) is provided between the groove (18) and the protrusion (20). The second spring (16) is sleeved on the adjusting bolt (15). When the pusher (11) pushes the rotating seat (19) to rotate, the second spring (16) extends.

6. The combing machine according to any one of claims 1-5, characterized in that, Both the active pressure roller (7) and the passive pressure roller (9) have multiple teeth (17) on their pressing surfaces, and the multiple teeth (17) are evenly distributed circumferentially.

7. The combing machine as described in claim 6, characterized in that, A maintenance handle (12) is provided on the rotating seat (19).

8. The combing machine as described in claim 1, characterized in that, It also includes a machine body, on which a coiled tube (8) is provided, and a guide plate (5) is provided on the fixed seat (6). The guide plate (5) and the coiled tube (8) are located on the upper and lower sides of the meshing position of the active pressure roller (7) and the passive pressure roller (9), respectively.

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