Brake assembly and lap former

Abstract

The brake assembly comprises a brake wheel used for being connected with a chuck, the brake wheel is rotationally arranged in a machine body, the upper side and the lower side of the brake wheel are each provided with a brake belt, the two brake belts are arranged in the axial direction of the brake wheel, one end of each brake belt is fixed, and the other end of each brake belt bypasses the brake wheel and is fixedly connected with a driving arm. The driving arms correspond to the brake belts in a one-to-one mode, the two-way synchronous telescopic unit is arranged between the ends, away from the brake wheel, of the two driving arms, a heavy hammer is omitted, the control precision is higher, the elongation difference between small rolling tables is reduced, waste caused by waste of waste is avoided, the driving arms are not prone to breakage, the two brake belts do not interfere with each other, and the service life of the small rolling tables is prolonged. The upper portion and the lower portion of the brake wheel can be tightly held through cooperation of the two brake belts, the brake contact area of the brake wheel is enlarged, the brake reaction efficiency is improved, the emergency capacity is high, and the problem of brake failure cannot occur when one brake belt is broken.

Description

Technical Field

[0001] The utility model relates to the technical field of sliver lap machines, in particular to a braking component and a sliver lap machine. Background Technique

[0002] The sliver lap machine, as one of the key machines for the preparation before cotton combing, mainly functions to arrange the card sliver or pre-drawn sliver in parallel to form a sliver lap for further processing by the comber. The sliver lap machine mainly consists of a feeding device, a drafting device, a pressing device, a coiling mechanism and a locking mechanism. The commonly used sliver lap machine in textile enterprises is the A191 type sliver lap machine.

[0003] The traditional A191 type sliver lap machine has a low degree of automation. In order to reduce the labor intensity, there has now appeared an A191 type sliver lap machine with a higher degree of automation (publication number CN217869268U), which has improved the automation degree of tube changing, tube discharging and chuck reset braking. Among them, during the process of the chuck moving down for reset, the braking of the chuck mainly relies on the cooperation of a brake wheel and a brake belt, and the brake belt is driven by a weight lever and a cylinder.

[0004] For the A191 type sliver lap machine in the prior art, its weight lever consists of a rod body and a weight. The front end of the rod body is fixedly connected to the weight and one end of the brake belt, and the rear end of the rod body is connected to the cylinder. When the chuck drops, the cylinder presses down the front end of the weight lever. Since the rear end of the weight lever is subjected to a greater force, the weight lever is easily broken. Moreover, the braking of the brake wheel mainly relies on the weight pressing down the rod body, and the position control accuracy of the weight is poor, which easily causes a large difference in the elongation rate between small coils, resulting in waste of return waste; in addition, the brake wheel realizes braking through partial outer ring cooperation with a single brake belt, the contact area is small, the braking reaction speed is slow, and the emergency response ability is poor. When a single brake belt breaks, it can no longer play the role of braking and locking. Content of the Utility Model

[0005] In order to solve the technical problems in the above background technique that the weight lever of the existing sliver lap machine is easily broken, the control accuracy is poor, and the emergency response ability is poor, the utility model provides a braking component and a sliver lap machine.

[0006] The technical solution of the utility model is as follows:

[0007] The utility model provides a braking assembly, which includes a braking wheel for connecting with a chuck. The braking wheel is rotatably arranged in the machine body. A braking belt is respectively arranged on the upper and lower sides of the braking wheel. The two braking belts are arranged along the axial direction of the braking wheel. One end of the braking belt is fixed, and the other end of the braking belt bypasses the braking wheel and is fixedly connected with a driving arm. The driving arms correspond to the braking belts one by one. The driving arms are rotatably arranged. The two driving arms are arranged up and down. A bidirectional synchronous telescopic unit is arranged between the ends of the two driving arms far away from the braking wheel. The bidirectional synchronous telescopic unit is hinged with the two driving arms. The driving arms are directly driven by the bidirectional synchronous telescopic unit, eliminating the use of a heavy hammer, with higher control precision, reducing the elongation difference between small coiling tables, avoiding waste of return waste, and the driving arms are not easily broken. The two braking belts do not interfere with each other and can tightly hold the upper and lower parts of the braking wheel through the cooperation of the two braking belts, expanding the braking contact area of the braking wheel, improving the braking reaction efficiency, and having strong emergency response ability. When one braking belt breaks, the problem of braking failure will not occur.

[0008] Preferably, a connecting shaft is fixedly arranged on the side wall of one end of the driving arm close to the braking wheel. The connecting shaft is fixedly connected with the braking belt, which is convenient for connecting the braking belt with the driving arm.

[0009] Preferably, the connecting shafts on the two driving arms are on different sides, effectively preventing interference between the two braking belts.

[0010] Preferably, sliding rails are respectively arranged on the side edges of the two driving arms close to each other along their lengths. Sliders are slidably arranged in the sliding rails. The two ends of the bidirectional synchronous telescopic unit are respectively hinged with a neighboring slider, enabling the bidirectional synchronous telescopic unit to synchronously drive the two driving arms located on its upper and lower sides to rotate around the axis.

[0011] Preferably, protrusions are arranged on the side walls of the sliders, and grooves matching the protrusions are arranged on the inner walls of the sliding rails, preventing the sliders from falling out of the sliding rails.

[0012] The utility model provides a coiler, which includes a machine body. The braking wheel is rotatably arranged in the machine body. The gear is connected with the chuck through a vertically arranged rack. The driving arm is rotatably connected with the machine body.

[0013] Preferably, a sensor and a control mechanism are arranged on the machine body. The sensor is located on one side of the chuck. The control mechanism is connected with the sensor and the bidirectional synchronous telescopic unit. The control mechanism can control the action of the bidirectional synchronous telescopic unit according to the actual position of the chuck, ensuring the braking reaction speed and precision.

[0014] It can be seen from the above technical solutions that the advantages of the utility model are as follows:

[0015] The driving arm is directly driven by a bidirectional synchronous telescopic unit, eliminating the use of heavy weights, resulting in higher control precision, reducing the elongation rate difference between small winding platforms, avoiding waste of waste yarn, and the driving arm is not easily broken. In addition, by the cooperation of two braking belts to tightly hold the upper and lower parts of the brake wheel together, the two braking belts do not interfere with each other, expanding the braking contact area of the brake wheel, improving the braking reaction efficiency, and having strong emergency response ability. When one braking belt breaks, there will be no problem of braking failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the present invention, the accompanying drawings required for description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a schematic structural diagram of a braking component according to one or more embodiments of the present invention;

[0018] Figure 2 is a schematic diagram of the positional relationship between two driving arms and braking belts according to one or more embodiments of the present invention;

[0019] The components represented by the reference numerals in the drawings are:

[0020] 1, body; 2, brake wheel; 3, gear; 4, driving arm; 5, braking belt; 6, bidirectional synchronous telescopic unit; 7, slide rail; 8, slider; 9, fixed shaft; 10, connecting shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the specific embodiments of the present invention. Obviously, the embodiments described below are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this patent.

[0022] Embodiment 1

[0023] In a typical embodiment of the present invention, as Figure 1 - Figure 2As shown in the figure, a braking assembly is proposed, including: a braking wheel 2, a braking belt 5, and a bidirectional synchronous telescopic unit 6. The braking wheel 2 is rotatably arranged on the machine body 1 through a rotating shaft. A gear 3 is fixedly connected to one side of the braking wheel 2. The braking wheel 2 is connected to the chuck through the meshing of the gear 3 with the rack. There are two braking belts 5. The two braking belts 5 are relatively distributed on the upper and lower sides of the braking wheel 2, and the two braking belts 5 are arranged along the axial direction of the braking wheel 2. The two braking belts 5 do not interfere with each other and can tightly hold the upper and lower parts of the braking wheel 2 through the cooperation of the two braking belts 5, expanding the braking contact area of the braking wheel 2, improving the braking response efficiency, and having strong emergency capabilities. When one braking belt 5 breaks, the problem of braking failure will not occur.

[0024] The braking belt 5 is driven by a driving arm 4. There are two driving arms 4. The two driving arms 4 correspond to the braking belt 5 one by one. One end of the braking belt 5 is fixedly connected to a fixed shaft 9. The fixed shaft 9 is fixedly arranged on the machine body 1. The other end of the braking belt 5 is fixedly connected to the driving arm 4.

[0025] The driving arm 4 is a triangular structure. A connecting shaft 10 is fixedly arranged on the side wall of the end of the driving arm 4 close to the braking wheel 2. The connecting shaft 10 is fixedly connected to the braking belt 5. The driving arm 4 is rotatably arranged on the machine body 1 through a rotating shaft. The end of the driving arm 4 far from the braking wheel 2 is connected to a driving mechanism, so that the braking belt 5 can be close to or far from the braking wheel 2 under the drive of the driving arm 4, thereby realizing braking control.

[0026] The two driving arms 4 are arranged up and down. A connecting shaft 10 is fixedly connected to the side wall of the end of each of the two driving arms 4 close to the braking wheel 2, and the connecting shafts 10 on the two driving arms 4 are on different sides, that is, the connecting shafts 10 on the two driving arms 4 are located in different vertical planes to prevent interference between the two braking belts 5.

[0027] As Figure 1 shown in the figure, one end of the braking belt 5 in contact with the lower part of the braking wheel 2 is fixedly connected to the upper fixed shaft 9. After passing around the braking wheel 2 from below, the other end is fixedly connected to the connecting shaft 10 on the upper driving arm 4; one end of the braking belt 5 in contact with the lower part of the braking wheel 2 is fixedly connected to the lower fixed shaft 9. After passing around the braking wheel 2 from above, the other end is fixedly connected to the connecting shaft 10 on the lower driving arm 4. Among them, the length of the lower fixed shaft 9 is much longer than the length of the upper fixed shaft 9 to facilitate the staggered installation of the braking belt.

[0028] It can be understood that the fixed connection method between the braking belt 5 and the fixed shaft 9 and the connecting shaft 10 can be that the end of the braking belt 5 is sleeved into the fixed shaft 9 and the connecting shaft 10 and then fixed by nuts or other fixing methods can also be used. There are no specific restrictions here.

[0029] One end of two driving arms 4 away from the brake wheel 2 is connected through a driving mechanism. The driving mechanism includes a bidirectional synchronous telescopic unit 6 and a slider 8. Among them, there are two sliders 8. Slide rails 7 are provided along the length direction on the sides of the two driving arms 4 close to each other. The slider 8 is slidably arranged in the slide rail 7. A bidirectional synchronous telescopic unit 6 is hinged between the two sliders 8. Thus, it can utilize the cooperation of the bidirectional synchronous telescopic unit 6 and the sliders 8 hinged at both ends thereof to synchronously drive one end of the two driving arms 4 close to the brake wheel 2 to move closer to / away from each other, so as to synchronously drive the two brake belts 5 to approach / away from the brake wheel 2. Among them, the bidirectional synchronous telescopic unit 6 can be rotatably connected to the machine body 1 through a rotating shaft, or can not be connected to the machine body 1, and is specifically determined according to actual requirements.

[0030] Specifically, when the two ends of the bidirectional synchronous telescopic unit 6 extend synchronously, it pushes one end of the driving arm 4 connected to the brake belt 5 to approach each other, so that the brake belt 5 moves away from the brake wheel 2 to cancel the braking; when the two ends of the bidirectional synchronous telescopic unit 6 contract synchronously, it pulls one end of the driving arm 4 connected to the brake belt 5 to move away from each other, so as to tighten the brake belt 5 and make the brake belt 5 closely adhere to the brake wheel 2 to achieve braking.

[0031] A protrusion is fixedly provided on the side wall of the slider 8, and a groove cooperating with the protrusion is provided on the inner wall of the slide rail 7, so as to limit the position of the slider 8 and prevent the slider 8 from falling out of the slide rail 7.

[0032] The cooperation between the brake belt 5 and the brake wheel 2 completely relies on the drive of the bidirectional synchronous telescopic unit 6, eliminating the use of weights, with higher control precision, reducing the elongation rate difference between small winding platforms, avoiding waste of return flowers, and the driving arm 4 is not easily broken.

[0033] In this embodiment, the bidirectional synchronous telescopic unit 6 is a bidirectional synchronous telescopic electric push rod. In other embodiments, the bidirectional synchronous telescopic unit 6 can also be a bidirectional synchronous telescopic cylinder structure. Both the bidirectional synchronous telescopic electric push rod and the bidirectional synchronous telescopic cylinder are existing structures, and the specific structural form is not limited too much here.

[0034] It can be understood that the brake wheel 2 can be an ordinary rotating wheel structure or a double V-groove wheel structure. In order to improve the braking effect, a rubber layer can be provided on the outer ring of the brake wheel 2 to increase the friction with the brake belt 5. The specific situation is not limited too much here.

[0035] Embodiment 2

[0036] In a typical embodiment of the present utility model, a coiler is proposed, which adopts the braking assembly mentioned in Embodiment 1. The coiler includes a machine body 1, and the braking assembly is arranged inside the machine body 1. Among them, a braking wheel 2 is rotatably arranged inside the machine body 1, and a gear 3 fixedly connected to one side of the rotating wheel 2 is connected to a chuck through a vertically arranged rack. The gear 3 meshes with the rack, and the rack is fixedly connected to the chuck. A driving arm 4 is rotatably arranged inside the machine body 1 and is driven by a bidirectional synchronous telescopic unit 6.

[0037] Among them, the driving arm 4 can be completely placed inside the machine body 1 or partially placed inside the machine body 1, and specifically can be determined according to actual needs, and there is no excessive limitation here.

[0038] The machine body 1 is also provided with a sensor and a control mechanism. The sensor is located on one side of the chuck to detect the actual position of the chuck through the sensor. The control mechanism is connected to the sensor and the bidirectional synchronous telescopic unit 6. The control mechanism can control the action of the bidirectional synchronous telescopic unit 6 according to the actual position of the chuck to ensure the braking reaction speed and accuracy.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. 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 utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A brake assembly, comprising: A brake wheel (2) for connecting with a chuck, the brake wheel (2) is rotatably arranged in a machine body (1), characterized in that a brake belt (5) is respectively arranged on the upper and lower sides of the brake wheel (2), the two brake belts (5) are arranged along the axial direction of the brake wheel (2), one end of the brake belt (5) is fixed, the other end of the brake belt (5) passes around the brake wheel (2) and is fixedly connected with a driving arm (4), the driving arm (4) corresponds to the brake belt (5) one by one, the driving arm (4) is rotatably arranged, the two driving arms (4) are arranged up and down, a bidirectional synchronous telescopic unit (6) is arranged between the ends of the two driving arms (4) away from the brake wheel (2), and the bidirectional synchronous telescopic unit (6) is hinged to the two driving arms (4).

2. A brake assembly according to claim 1, characterized in that: A connecting shaft (10) is fixedly provided on a side wall of one end of the driving arm (4) close to the brake wheel (2), and the connecting shaft (10) is fixedly connected to the brake belt (5).

3. A brake assembly according to claim 2, characterized in that: The connecting shafts (10) on the two driving arms (4) are on different sides.

4. A brake assembly according to claim 1, characterized in that: Slide rails (7) are provided on the sides of the two driving arms (4) that are close to each other along their length direction, and a slider (8) is slidably arranged in the slide rails (7). Both ends of the bidirectional synchronous telescopic unit (6) are respectively hinged to an adjacent slider (8).

5. A brake assembly according to claim 4, characterized in that: A protrusion is provided on the side wall of the slide block (8), and a groove matching the protrusion is provided on the inner wall of the slide rail (7).

6. A strip lap machine, characterized in that: A brake assembly as claimed in any one of claims 1 to 5 is used, comprising: a body (1), a brake wheel (2) rotatably arranged in the body (1), a gear (3) connected to the chuck via a vertically arranged rack, and a drive arm (4) rotatably connected to the body (1).

7. A strip lap machine according to claim 6, characterized in that: A sensor and a control mechanism are provided on the machine body (1); the sensor is located on one side of the chuck; and the control mechanism is connected to the sensor and a bidirectional synchronous telescopic unit (6).

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