Sliver can sliver traction device for combing sliver lap machine

Abstract

The utility model relates to the technical field of spinning, in particular to a sliver can sliver traction device for a combing sliver lap machine, which comprises a fixing seat and a sliver can, the fixing seat is positioned above the sliver can, and a first rubber wheel and a second rubber wheel which can rotate freely are mounted on the fixing seat. The first rubber wheel and the second rubber wheel are located at the same height and are arranged in parallel, an annular sliver guide ring is arranged below the first rubber wheel, the first rubber wheel and the sliver guide ring are both located above the sliver barrel, and a sliver guide rod is arranged between the first rubber wheel and the second rubber wheel. The cotton slivers upwards penetrate through the sliver guide ring, pass through the first rubber wheel in the horizontal direction, pass through the lower side of the sliver guide rod and then move backwards through the second rubber wheel, the cotton slivers are conveyed more stably, fluctuation of the cotton slivers in the conveying process is stabilized, and accidental traction and sliver breakage are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of spinning, in particular to a sliver barrel cotton sliver pulling device for a combing sliver lap machine. Background Art

[0002] The combed sliver lap machine is one of the preparatory machines for cotton combing. The raw slivers from the carding machine need to be pre-lapped and made into uniform small rolls. The pre-lapped slivers will be fed into the lap machine. In the lap machine, the pre-lapped slivers will be arranged in parallel and made into sliver rolls. The main components of the lap machine include feeding, drafting, compacting and rolling mechanisms. The slivers are drafted, compacted, and finally rolled into small rolls, and then fed into the lap machine. In the lap machine, the small rolls will be further drafted, combined, and mixed into sheets and then output as cotton layers. This step is intended to improve the straightness and parallelism of the fibers, and to make the small rolls have certain specifications, weights and densities for use in the combing machine.

[0003] In the above process, the pre-drawn roll is placed in a sliver barrel in a spiral, and multiple slivers are drawn out of the sliver barrel through the drafting device. The drafting speed of each sliver should be consistent and stable, otherwise it will cause accidental traction and sliver breakage in the subsequent steps, affecting the yarn quality. At this time, the fluffiness of the sliver is relatively high, and the fiber cohesion is relatively low, which makes it easy to break.

[0004] In the prior art, the Chinese utility model patent No. 200820222647.9 records that most sliver and roll combined machines produced by domestic and foreign manufacturers currently adopt passive cotton feeding. The slivers are not actively transferred and directly enter the drafting device. After drafting, the two layers of cotton web are combined into one layer and enter the compacting roller, and then rolled on the roll roller and output. The slivers are passively fed into the drafting mechanism, and there must be a certain amount of accidental drafting. Secondly, the slivers are easy to break during the operation of the equipment, causing the equipment to stop, affecting the efficiency of the equipment. This patent uses active cotton feeding to change the direction of the slivers. 28 sliver barrels are scattered around the drafting. The slivers coming out of the cotton barrels are vertically led to the feeding roller. The feeding roller is pulled by the belt drawn from the drafting, rotates at a certain speed to drive the slivers forward, and passes the slivers to the next feeding roller. The slivers enter the cotton guide plate through multiple transfers, thereby reducing the probability of the slivers breaking in the trajectory from the barrel to the cotton rack and then to the drafting, and reducing accidental drafting. However, the applicant has found in practice that the above-mentioned active sliver feeding, like the passive sliver feeding, has defects such as accidental pulling and sliver breaking. Utility Model Content

[0005] The purpose of the utility model is to address the deficiencies of the prior art and to provide a sliver traction device for a sliver barrel of a combing lap machine. The sliver traction device has a scientific structure and limits the slivers by means of a sliver guide ring to reduce the slivers' large swinging due to inertia during traction. The slivers are guided by a first rubber wheel, a sliver guide rod and a second rubber wheel to smooth out their fluctuations, thereby reducing accidental traction and sliver breakage.

[0006] The technical solution adopted by the utility model to solve the technical problem is: a sliver traction device for a sliver barrel of a combing lap machine, which includes a fixed seat and a sliver barrel, in which there are slivers to be tractioned out for processing, the fixed seat is made of metal, the fixed seat is located above the sliver barrel, the fixed seat is equipped with a first rubber wheel and a second rubber wheel that can rotate freely, the first rubber wheel and the second rubber wheel are located at the same height and arranged in parallel, a circular guide ring is arranged below the first rubber wheel, the first rubber wheel and the guide ring are both located above the sliver barrel, a guide rod is arranged between the first rubber wheel and the second rubber wheel, the utility model adopts passive feeding, the sliver is drafted backward under the action of the subsequent feeding roller, and the structure of this embodiment is used to guide and suppress the traction fluctuation. When the sliver is traction, the sliver passes through the guide ring upwards, before passing through the guide ring, the swing trajectory of the sliver is large, and even exceeds the contour range of the sliver barrel, after passing through the guide ring, the trajectory of the sliver is limited by the guide ring, and then can enter the first rubber wheel at a smaller angle to prevent the sliver from deviating from the first rubber wheel. The swing of the sliver before passing through the guide ring also makes the sliver have a certain buffer, making its pulling speed more stable. When the sliver passes through the first rubber wheel, the direction changes from upward to horizontal by about 90°, then passes from the lower side of the guide rod, and then moves backward through the second rubber wheel. Through the above method, the sliver conveying is more stable, thereby smoothing the fluctuation during the sliver conveying, reducing accidental pulling and reducing sliver breakage.

[0007] Preferably, the height of the bar barrel used is 1.1m, the height of the first rubber wheel is 2m, and the guide ring is located 6cm below the first rubber wheel, so that there is a higher height between the guide ring and the bar barrel. The cotton strips swing within this height range, so that the cotton strips have a certain buffer and the traction speed is more stable.

[0008] Preferably, the strip guide ring is a plastic ring with a smooth surface and an inner diameter of 2 cm, thereby limiting the trajectory of the sliver.

[0009] Preferably, the guide rod is a round rod made of stainless steel, which can conduct the charge generated by the friction between the cotton strip and the guide ring and the first rubber wheel, eliminate static electricity, and further eliminate the possibility of accidental traction when the cotton strip is pulled.

[0010] Preferably, a broken sliver detection sensor is provided between the sliver guide rod and the second rubber wheel, and the broken sliver detection sensor is connected to the fixing seat to detect whether the sliver is broken.

[0011] The beneficial effects of the utility model are as follows: the cotton strips are fed passively, so that the stress points of the external pulling force applied during the traction process are reduced, and fluctuations between the forces applied at different locations are avoided, thereby avoiding accidental traction and sliver breakage; and the heights of the first rubber wheel and the second rubber wheel are raised, so that the cotton strips are swung in the air before entering the first rubber wheel so that the speed of the cotton strips passing through the space is buffered to a certain extent, and then the trajectory of the cotton strips is limited by the guide strip ring, and the cotton strips pass through the guide strip ring upward, and the friction resistance at the guide strip ring is small, and then the cotton strips are turned 90 degrees by the first rubber wheel, and the cotton strips are smoothly transported backwards through the guide strip rod and the second rubber wheel. The utility model makes the transportation of the cotton strips more stable and has a certain buffering capacity, so that accidental traction and sliver breakage can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a schematic structural diagram of a sliver barrel sliver pulling device for a combing sliver lap machine.

[0013] Figure 2 yes Figure 1 Left view of .

[0014] Description of reference numerals:

[0015] 1——Fixed seat 2——Barrel

[0016] 3——First rubber wheel 4——Second rubber wheel

[0017] 5——Guide ring 6——Guide rod

[0018] 7——Broken sliver detection sensor 8——Cotton sliver. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the scope of implementation of the present invention is not limited thereto.

[0020] like Figure 1 , Figure 2 As shown, the sliver barrel traction device for a combing lap machine of this embodiment includes a fixing seat 1 and a sliver barrel 2. Figure 1The fixing seat 1 is not drawn. The fixing seat 1 is located above the can 2. The fixing seat 1 is equipped with a first rubber wheel 3 and a second rubber wheel 4 that can rotate freely. The first rubber wheel 3 and the second rubber wheel 4 are U-shaped smooth wheels. The cotton strip moves in the U-shaped groove and drives the rubber wheel to rotate. The first rubber wheel 3 and the second rubber wheel 4 are located at the same height and arranged in parallel. A circular guide ring 5 is arranged below the first rubber wheel 3. The first rubber wheel 3 and the guide ring 5 are both located above the can 2. A guide rod 6 is arranged between the first rubber wheel 3 and the second rubber wheel 4. After the cotton strip passes through the guide ring 5 upwards, it passes through the first rubber wheel 3 along the horizontal direction from the lower side of the guide rod 6 and moves to the second rubber wheel 3.

[0021] Furthermore, the height of the strip barrel 2 is about 1.1m, the height of the first rubber wheel 3 is about 2m, the strip guide ring 5 is located 6cm below the first rubber wheel 3, and the strip guide ring 5 is at a certain height away from the strip barrel 2, so that the cotton strips can be swung within this height range, and the distance between the strip guide ring 5 and the first rubber wheel 3 is small, so that the cotton strips can enter the first rubber wheel 3 as straight as possible.

[0022] Furthermore, the guide ring 5 is a plastic ring with a smooth surface and an inner diameter of 2 cm.

[0023] Furthermore, the guide rod 6 is a round rod made of conductive stainless steel to eliminate static electricity on the cotton strip.

[0024] Furthermore, a broken strip detection sensor 7 is provided between the guide rod 6 and the second rubber wheel 3, and the broken strip detection sensor 7 is connected to the fixed seat 1. The broken strip detection sensor 7 can detect whether the cotton strip is broken. If changes are detected in the speed and distance of the cotton strip, it can be determined that a traction fault occurs, and then it can be processed.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A sliver traction device for a combed sliver lap machine, characterized in that: The invention comprises a fixed seat (1) and a strip barrel (2), wherein the fixed seat (1) is located above the strip barrel (2), and the fixed seat (1) is provided with a first rubber wheel (3) and a second rubber wheel (4) which can rotate freely, wherein the first rubber wheel (3) and the second rubber wheel (4) are located at the same height and are arranged in parallel, and an annular strip guide ring (5) is arranged below the first rubber wheel (3), and the first rubber wheel (3) and the strip guide ring (5) are both located above the strip barrel (2), and a strip guide rod (6) is arranged between the first rubber wheel (3) and the second rubber wheel (4), and the cotton strip passes through the strip guide ring (5) upwards, passes through the first rubber wheel (3) in a horizontal direction from the lower side of the strip guide rod (6), and moves to the second rubber wheel (4).

2. The sliver traction device for a combing lap machine according to claim 1, characterized in that: The height of the bar barrel (2) is 1.1 m, the height of the first rubber wheel (3) is 2 m, and the bar guide ring (5) is located 6 cm below the first rubber wheel (3).

3. The sliver traction device for a combing lap machine according to claim 2, characterized in that: The guide ring (5) is a plastic ring with a smooth surface and an inner diameter of 2 cm.

4. The sliver traction device for a combing lap machine according to claim 1, characterized in that: The guide bar (6) is a round bar made of stainless steel.

5. The sliver traction device for a combing lap machine according to claim 4, characterized in that: A broken strip detection sensor (7) is provided between the strip guide rod (6) and the second rubber wheel (4), and the broken strip detection sensor (7) is connected to the fixing seat (1).

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