CN212357515U

CN212357515U - Warper bobbin unwinding device

Info

Publication number: CN212357515U
Application number: CN202020606796.6U
Authority: CN
Inventors: 陆剑峰; 陈平; 叶平; 陆进锋
Original assignee: Jiangsu Jinni Pmc Co ltd
Current assignee: Jiangsu Jinni Pmc Co ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2021-01-15
Anticipated expiration: 2030-04-21

Abstract

The application discloses warper barrel is moved back around device includes: the spindle is rotatably arranged on the bobbin creel; the friction disc is fixed relative to the spindle and is coaxially and rotatably arranged on the bobbin creel with the spindle; the flexible friction piece comprises a first end arranged on the bobbin creel and a second end opposite to the first end, and the flexible friction piece is pressed against part of the outer peripheral wall of the friction disc to provide friction force for resisting the rotation of the friction disc; and the resistance piece is arranged at the second end and drives the flexible friction piece to apply pressure towards the circle center of the friction disc to the friction disc, so that the flexible friction piece is pressed on the outer peripheral wall of the friction disc. The resistance piece drives the flexible friction piece to be tightly pressed on the peripheral wall of the friction disc, friction force exists between the flexible friction piece and the friction disc, and the spindle is prevented from rotating, so that tension unevenness among yarns caused by rotation of the spindle under inertia is reduced, the difference of the perimeter of the pan head caused by the tension unevenness is reduced, and the smoothness of grey cloth is improved.

Description

Warper bobbin unwinding device

Technical Field

The application belongs to the technical field of weaving equipment, concretely relates to warper bobbin unwinding device.

Background

With the continuous development of the paper industry, paper machines are continuously developing at high speed and wide width. The base cloth is suitable for high-speed and wide-width papermaking felts, the quality requirement of the base cloth is higher and higher, and the annular endless base cloth continuously replaces the traditional end-spliced base cloth. The warping of present annular no end base cloth generally uses little pan head warper, and the key control point of little pan head warping quality guarantees that warp tension is invariable, ensures that the good pan head size of warping is unanimous, otherwise knits down grey cloth planarization poor, can not satisfy the quality requirement.

The traditional warper bobbin cradle is processed into a splayed cradle by angle iron or channel steel, a spindle is fixed on the bobbin cradle by a nut after being tapped by one end of 12MM steel, a convex gasket is added at the root of the spindle, a bobbin wound with yarn is inserted into the spindle during working, the bobbin is dragged by a warp disc to rotate backwards, the unwinding device is simple, and due to the inertia effect of the bobbin, the yarn tension has a sudden change phenomenon when the warper is stopped and restarted, and the grey cloth smoothness is poor.

SUMMERY OF THE UTILITY MODEL

The application provides warper bobbin unwinding device to solve the yarn tension inequality and lead to the poor technical problem of grey cloth planarization.

In order to solve the technical problem, the application adopts a technical scheme that: a warper bobbin unwinding device comprising: the spindle is rotatably arranged on the bobbin creel; the friction disc is fixed relative to the spindle and is coaxially and rotatably arranged on the bobbin creel with the spindle; a flexible friction member including a first end disposed on the bobbin creel and a second end opposite to the first end, the flexible friction member pressing against a portion of the outer peripheral wall disposed on the friction disc to provide a frictional force resisting rotation of the friction disc; and the resistance element is arranged at the second end and drives the flexible friction element to apply pressure towards the circle center of the friction disc to the friction disc, so that the flexible friction element is pressed against the peripheral wall of the friction disc.

According to an embodiment of the present application, the rotation axis of the spindle is horizontal, and the resistance member includes a weight, and the weight pulls the flexible friction member to press against the peripheral wall of the friction disc by its gravity.

According to an embodiment of the application, the weight bottom is provided with the screw hole, the adjusting screw that sets up different weight can be dismantled to the screw hole.

According to one embodiment of the application, the outer wall of the spindle is provided with a spring ring which is arranged in an outward expansion mode so as to fix the bobbin.

According to an embodiment of the present application, a cylindrical protrusion is disposed on a side surface of the friction disc, and is used for being clamped with the groove on the side surface of the bobbin.

According to one embodiment of the present application, a yarn guide pulley is rotatably disposed on a bobbin cradle and located at one side of the spindle to guide a yarn of a bobbin sleeved on the spindle.

According to an embodiment of the application, the yarn guide rod is arranged on the bobbin creel and is positioned on one side of the yarn guide pulley to guide the yarns to pass through, the yarn guide rod is sleeved with the glass tube, and the end part of the yarn guide rod is provided with the blocking piece to prevent the glass tube from being separated.

According to an embodiment of the application, the spindle is rotatably arranged on the bobbin creel through a bearing seat.

According to an embodiment of the application, the bearing housing comprises two bearings.

According to an embodiment of the application, the flexible friction member comprises felt or gauze.

The beneficial effect of this application is: the resistance piece drives the flexible friction piece to be tightly pressed on the peripheral wall of the friction disc, friction force exists between the flexible friction piece and the friction disc, and the spindle is prevented from rotating, so that tension unevenness among yarns caused by rotation of the spindle under inertia is reduced, the difference of the perimeter of the pan head caused by the tension unevenness is reduced, and the smoothness of grey cloth is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a perspective view of the overall structure of one embodiment of the warper bobbin rewind device of the present application;

fig. 2 is a partial structural schematic view of an embodiment of the warper bobbin unwinding device of the present application, which is mainly used for showing the positional relationship between the flexible friction member and the friction disc.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 to 2, fig. 1 is a perspective view illustrating an overall structure of an embodiment of a warper bobbin unwinding device according to the present application; fig. 2 is a partial structural schematic view of an embodiment of the warper bobbin unwinding device of the present application, which is mainly used for showing the positional relationship between the flexible friction member and the friction disc.

An embodiment of the present application provides a warper bobbin unwinding device 100, as shown in fig. 1 and 2, including a spindle 110, a friction disc 120, a flexible friction member 130, and a resistance member 140. The spindle 110 is rotatably disposed on the bobbin creel 11, the bobbin 200 is sleeved on the spindle 110, the bobbin 200 is fixed relative to the spindle 110, and when the yarn wound on the bobbin 200 is drawn and unwound, the yarn drives the bobbin 200 and the spindle 110 to rotate synchronously. The friction disc 120 is fixed opposite to the spindle 110, and usually the friction disc 120 is located at one end of the spindle 110 close to the bobbin creel 11 and is arranged on the bobbin creel 11 coaxially and rotatably with the spindle 110. The flexible friction member 130 includes a first end 131 disposed at the bobbin creel 11 and a second end 132 opposite to the first end 131, and the flexible friction member 130 presses a portion of the outer circumferential wall disposed at the friction disc 120 to provide a frictional force to resist rotation of the friction disc 120. The resistance member 140 is disposed at the second end 132 of the flexible friction member 130, and drives the flexible friction member 130 to apply a pressure to the friction disc 120 toward the center of the friction disc 120, so that the flexible friction member 130 presses against the outer circumferential wall of the friction disc 120.

The flexible friction member 130 is driven to be pressed against the outer circumferential wall of the friction disk 120 by the resistance member 140, so that when the friction disk 120 rotates, a frictional force exists between the flexible friction member 130 and the friction disk 120 to block the rotation of the friction disk 120 to some extent. For example, when the warping machine stops halfway, the spindle 110 loses the traction force of the yarn, but the spindle 110 still rotates under the action of inertia, and the friction force between the flexible friction member 130 and the friction disc 120 in the present application hinders the rotation of the spindle 110, so that the uneven tension between the yarns caused by the rotation of the spindle 110 under the inertia is reduced, the difference of the circumferences of the pan heads caused by the uneven tension is reduced, and the smoothness of the grey cloth is improved.

The resistance member 140 can drive the flexible friction member 130 to press against the outer peripheral wall of the friction disc 120 in various ways, and in one embodiment, as shown in fig. 1 and 2, the rotation axis of the spindle 110 is horizontal, the resistance member 140 includes a weight, and the flexible friction member 130 bends to fit against a part of the outer wall of the friction disc 120 and then sags under the gravity of the weight, i.e., the resistance member 140 drives the flexible friction member 130 to press against the outer peripheral wall of the friction disc 120 by the gravity thereof. Specifically, the flexible friction member 130 may be connected to the weight through a wire. In other embodiments, the rotation axis of the spindle 110 may also be located in a vertical state or other non-horizontal direction, the flexible friction member 130 is bent to fit the outer wall of the friction disc 120, and the resistance member 140 applies a pulling force to the flexible friction member 130, so that the flexible friction member 130 is pressed against the outer circumferential wall of the friction disc 120 after being tightened, for example, the resistance member 140 may be a spring, one end of the spring is fixed, and the other end of the spring is connected to the second end 132 of the flexible friction member 130; or the resistance element 140 is a fixed element, the second end 132 of the flexible friction element 130 is tied to the fixed element, and the flexible friction element 130 can be pressed against the outer wall of the friction disc 120 after being tightened.

Since the friction force exists between the spindle 110 and the bobbin creel 11 and the magnitude of the friction force is related to the weight of the bobbin 200 and the friction coefficient between the spindle 110 and the bobbin creel 11, when the number of yarns on the bobbin 200 is reduced, the whole weight of the bobbin 200 is reduced, the friction force between the spindle 110 and the bobbin creel 11 is reduced, the traction force of the yarns is not changed, and the yarn tension fluctuation is caused, as shown in fig. 1, the spindle 110 of the present application is rotatably arranged on the bobbin creel 11 through the bearing seat 170, the friction coefficient between the spindle 110 and the bobbin creel 11 can be reduced, and therefore the friction force change between the spindle 110 and the bobbin creel 11 caused by the yarn number change is reduced, and the yarn tension fluctuation is further reduced.

In particular, the bearing housing 170 includes two bearings, where the rotational fit between the spindle 110 and the creel 11 is more stable.

Since the strength and elongation of the yarn of the bobbin 200 are different and the matching between the parts needs to be adjusted, the frictional force between the flexible friction member 130 and the friction disc 120 needs to be adjusted according to actual conditions. In an embodiment, as shown in fig. 1, the bottom of the resistance element 140 is provided with screw holes, and the screw holes are detachably provided with adjusting screws 141 with different weights, so that the adjusting screws 141 with different weights can be selected to be assembled at the bottom of the resistance element 140 according to the actual tension adjusting requirement, thereby adjusting the pressure and the friction between the flexible friction element 130 and the friction disc 120, and further adjusting the tension.

In one embodiment, as shown in fig. 1, the flexible friction member 130 may be felt or gauze, which is soft and deformable to abut against the outer circumferential wall of the friction disc 120, and has a rough surface with a certain friction.

The bobbin 200 and the spindle 110 are required to be relatively fixed, as shown in fig. 1, the outer wall of the spindle 110 is provided with a spring ring 111 which is arranged to expand outwards, the spring ring 111 is arranged on the outer wall of the spindle 110 in a ring shape, the middle part of the spring ring 111 protrudes outwards, when the bobbin 200 is sleeved on the spindle 110, the spring ring 111 is compressed, the spring ring 111 abuts against the inner wall of the bobbin 200 under the action of resilience force, the bobbin 200 and the spindle 110 are relatively fixed, and thus the bobbin 200 can synchronously rotate along with the spindle 110.

In order to further maintain the fixing stability of the bobbin 200 and the spindle 110, in an embodiment, as shown in fig. 1, the bobbin 200 is sleeved outside the spindle 110, and one end of the bobbin 200 abuts against the surface of the friction disc 120, a cylindrical protrusion 121 is disposed on a side surface of the friction disc 120, a groove 210 is correspondingly disposed on a side surface of the bobbin 200, the cylindrical protrusion 121 is configured to engage with the groove 210, and when the cylindrical protrusion 121 on the surface of the friction disc 120 is engaged in the groove 210, the friction disc 120 and the bobbin 200 are maintained to be fixed relatively.

In one embodiment, as shown in fig. 1, the unwinding device 100 further comprises a yarn guiding pulley 150, the yarn guiding pulley 150 is rotatably disposed on the bobbin cradle 11 and is located at one side of the spindle 110, the rotation axis of the yarn guiding pulley 150 is parallel to the rotation axis of the spindle 110, and the yarn on the bobbin 200 can change direction after passing through the yarn guiding pulley 150.

Further, as shown in fig. 1, the unwinding device 100 further includes a yarn guide 160, the yarn guide 160 is disposed on the creel 11 and is located at one side of the yarn guide pulley 150, and the yarn passing through the yarn guide pulley 150 can be changed in direction after being guided by the yarn guide 160. The same yarn guide rod 160 can be used for a plurality of yarns to pass through, and the glass tube 161 is sleeved outside the yarn guide rod 160, so that the adjacent yarns can be prevented from being entangled, and the yarns and the steel yarn guide rod 160 are prevented from directly contacting and touching rusts.

In order to prevent the glass tube 161 from falling off the yarn guide 160, as shown in fig. 1, the end of the yarn guide 160 is provided with a stopper 162 to prevent the glass tube 161 from falling off, specifically, the stopper 162 is a washer 1621 and a screw 1622, the washer is located at the end of the yarn guide 160, the outer diameter of the washer 1621 is larger than that of the yarn guide 160, the screw 1622 fixes the washer 1621 to the end of the yarn guide 160, so that the washer 1621 and the screw 1622 block the glass tube 161.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.

Claims

1. A warper bobbin unwinding device, comprising:

the spindle is rotatably arranged on the bobbin creel;

the friction disc is fixed relative to the spindle and is coaxially and rotatably arranged on the bobbin creel with the spindle;

a flexible friction member including a first end disposed on the bobbin creel and a second end opposite to the first end, the flexible friction member pressing against a portion of the outer peripheral wall disposed on the friction disc to provide a frictional force resisting rotation of the friction disc;

and the resistance element is arranged at the second end and drives the flexible friction element to apply pressure towards the circle center of the friction disc to the friction disc, so that the flexible friction element is pressed against the peripheral wall of the friction disc.

2. The apparatus of claim 1, wherein the axis of rotation of the spindle is horizontal, and the resistance member comprises a weight, the weight pulling the flexible friction member to press against the peripheral wall of the friction disc by gravity.

3. The device as claimed in claim 2, wherein the bottom of the weight is provided with a screw hole, and the screw hole is detachably provided with adjusting screws with different weights.

4. The apparatus of claim 1, wherein the outer wall of the spindle is provided with a spring ring disposed to expand outwardly to secure the bobbin.

5. The apparatus of claim 1, wherein said friction disk is provided with a cylindrical projection on a side thereof for engaging a groove on a side of said spool.

6. The apparatus of any one of claims 1-5, comprising:

and the yarn guide pulley is rotatably arranged on the bobbin creel and positioned at one side of the spindle so as to guide the yarn of the bobbin sleeved on the spindle.

7. The apparatus of claim 6, comprising:

the yarn guide rod is arranged on the bobbin creel and is positioned on one side of the yarn guide pulley so as to guide the yarns to pass through, a glass tube is sleeved outside the yarn guide rod, and a blocking piece is arranged at the end part of the yarn guide rod so as to prevent the glass tube from being separated.

8. The device according to any one of claims 1 to 5, characterized in that the spindle is rotatably arranged on the creel by means of a bearing block.

9. The apparatus of claim 8, wherein the bearing mount comprises two bearings.

10. The device of any one of claims 1-5, wherein the flexible friction member comprises felt or gauze.