CN219156023U

CN219156023U - Tension switching mechanism

Info

Publication number: CN219156023U
Application number: CN202223251983.5U
Authority: CN
Inventors: 朱雪冬
Original assignee: SUZHOU PULISEN MACHINERY CO Ltd
Current assignee: SUZHOU PULISEN MACHINERY CO Ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-06-09
Anticipated expiration: 2032-12-05

Abstract

The tension switching mechanism comprises a frame, wherein a front tension switching roller set is arranged in the frame and comprises a front fixed roller, a front tension roller and a front swinging roller, the front fixed roller is arranged below the front side of the front tension roller, and the front swinging roller is positioned on the upper side or the front side of the front tension roller through a front tension control assembly; the frame is provided with a back tension switching roller set which comprises a back fixed roller, a back tension roller and a back swinging roller, wherein the back tension roller is arranged on the upper side of the back fixed roller, and the back swinging roller is positioned on the front side of the back fixed roller or the upper side of the back tension roller through a back tension control assembly. In normal operation, the front swinging roller is positioned on the upper side of the front tension roller, the rear swinging roller is positioned on the front side of the rear fixed roller, and cloth passes through the front tension roller and the rear fixed roller without tension; when the roll is replaced, the front swinging roller is positioned at the front side of the front tension roller, the rear swinging roller is positioned at the upper side of the rear tension roller, and cloth passes through the front tension roller and the rear tension roller and has tension; simple structure, response is rapid, can provide tension for unreeling system when changing the reel for not shutting down.

Description

Tension switching mechanism

Technical Field

The utility model relates to the field of coiled material processing equipment, in particular to a tension switching mechanism.

Background

The mechanism is applied to a continuous wire receiving system of a coiled material unreeling part of various multi-layer material composite processing production lines such as non-woven fabric compounding, active carbon cloth compounding and the like. In the prior art, in the process of receiving the front and rear coiled materials, the unreeling tension cannot be smoothly connected, and particularly, the continuous wire receiving function is difficult to realize aiming at the composite processing of soft materials such as melt-blown cloth.

Based on this, the inventor proposes to use a non-stop unreeling system to improve the production efficiency, the principle of which is that: before the cloth on the cloth roll is used up, the residual cloth on the cloth roll is rapidly unreeled and stored in the cloth storage groove, and when the system continues to use the cloth in the cloth storage groove, the cloth changing and receiving operation is performed.

However, in the actual operation process, the problems of wrinkling, deviation and the like of the cloth in the cloth storage tank can occur when the system directly uses the cloth in the cloth storage tank in the roll changing process because the surface of the cloth in the cloth storage tank has no tension.

Therefore, in order to solve the above-mentioned problems, it is necessary to design a tension switching mechanism between the cloth storage tank and the subsequent processing mechanism.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide a tension switching mechanism.

To achieve the above and other related objects, the present utility model provides the following technical solutions: the tension switching mechanism comprises a frame, wherein the frame is internally provided with:

the front tension switching roller set comprises a front tension roller, a front fixed roller and a front swinging roller, wherein the front fixed roller is arranged below the front side of the front tension roller, and the front swinging roller can be positioned on the upper side or the front side of the front tension roller through a front tension control assembly;

the back tension switching roller set comprises a back fixed roller, a back tension roller and a back swinging roller, wherein the back tension roller is arranged on the upper side of the back fixed roller, and the back swinging roller can be positioned on the front side of the back fixed roller or the upper side of the back tension roller through a back tension control assembly;

in a normal mode, the front swing roller is positioned on the upper side of the front tension roller, and the rear swing roller is positioned on the front side of the rear fixed roller;

in tension mode, the front swing roller is located at the front side of the front tension roller, and the rear swing roller is located at the upper side of the rear tension roller.

The preferable technical scheme is as follows: the front tension control assembly comprises a telescopic cylinder, a driving rack, a driven gear and a front support, wherein the telescopic cylinder is fixedly arranged on the frame, the driving rack is vertically and fixedly arranged at the telescopic end of the telescopic cylinder and is driven by the telescopic cylinder to move up and down, the driven gear and the front support are fixedly arranged on a rotating shaft of the front tension roller, the driven gear and the driving rack are in matched engagement, and the front swing roller is rotationally connected to the front support.

The preferable technical scheme is as follows: the back tension control assembly comprises a swing cylinder and a back support (52), the swing shaft of the swing cylinder is axially and fixedly connected with the rotating shaft of the back fixing roller, the back support is fixedly arranged on the rotating shaft of the back fixing roller, and the back swing roller is rotationally connected to the back support.

The preferable technical scheme is as follows: the front support comprises two front support plates which are oppositely arranged, the two front support plates are respectively arranged at the two ends of the front tension roller and fixedly connected with the rotating shaft of the front tension roller, and the two ends of the front swinging roller are respectively and correspondingly connected with the two front support plates in a rotating way through bearings.

The preferable technical scheme is as follows: the rear support comprises two rear support plates which are oppositely arranged, the two rear support plates are respectively arranged at the two ends of the rear fixing roller and fixedly connected with the rotating shaft of the rear fixing roller, and the two ends of the rear swinging roller are respectively and correspondingly connected with the two rear support plates in a rotating manner through bearings.

The preferable technical scheme is as follows: the device also comprises a controller, wherein the controller is simultaneously connected with the telescopic cylinder and the swinging cylinder.

Due to the application of the technical scheme, the utility model has the following beneficial effects:

according to the tension switching mechanism provided by the utility model, when the system is in normal operation, the front swinging roller is positioned on the upper side of the front tension roller, the rear swinging roller is positioned on the front side of the rear fixed roller, so that cloth sequentially passes through the front tension roller and the rear fixed roller to play a supporting and guiding role; when the system needs to change the coil, the front swinging roller is positioned at the front side of the front tension roller, the rear swinging roller is positioned at the upper side of the rear tension roller, so that the cloth is contacted with the front fixed roller, the front swinging roller, the front tension roller, the rear swinging roller and the rear tension roller, and the cloth is provided with tension; the device has the advantages of simple structure and quick response, and can provide tension for the unreeling system without stopping when the reel is replaced.

Drawings

FIG. 1 is a schematic diagram of the present utility model.

Fig. 2 is a schematic diagram of the present utility model in normal mode.

FIG. 3 is a schematic diagram of the present utility model in tension mode.

In the drawings, 1, a frame; 2. a front tension switching roller group; 21. a front tension roller; 22. a front fixed roller; 23. a front swing roller; 3. a back tension switching roller group; 31. a rear fixed roller; 32. a rear tension roller; 33. a rear swing drum; 4. a front tension control assembly; 41. a telescopic cylinder; 42. a driving rack; 43. a driven gear; 44. a front bracket; 5. a rear tension control assembly; 51. a swing cylinder; 52. a rear bracket; 6. and (5) coiling materials.

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.

Please refer to fig. 1-3. It should be noted that, in the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or directions or positional relationships in which the inventive product is conventionally put in use, are merely for convenience of describing the present utility model and for simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," "overhang," and the like do not denote that the component is required to be absolutely horizontal or overhang, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or communicating between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples:

as shown in fig. 1, a tension switching mechanism according to the present utility model includes a frame 1, where the frame 1 is provided with:

the front tension switching roller group 2, the front tension switching roller group 2 includes a front tension roller 21, a front fixed roller 22, and a front swing roller 23. Wherein the front fixed roller 22 is provided below the front side of the front tension roller 32, and the front swing roller 23 may be positioned on the upper side or the front side of the front tension roller 21 by the front tension control assembly 4. The front tension roller 21 and the front fixed roller 22 are rotatably mounted on the respective shafts through bearings, and the shafts of the front tension roller 21 and the front fixed roller 22 are rotatably mounted on the frame 1 through bearings.

The back tension switching roller group 3, the back tension switching roller group 3 includes a back fixing roller 31, a back tension roller 32, and a back swing roller 33. Wherein the rear tension roller 32 is provided at an upper side of the rear fixing roller 31, and the rear swing drum 33 may be positioned at a front side of the rear fixing roller 31 or an upper side of the rear tension roller 32 by the rear tension control assembly 5. The rear fixing roller 31 and the rear tension roller 32 are rotatably disposed on respective shafts through bearings, and the shafts of the rear fixing roller 31 and the rear tension roller 32 are rotatably disposed on the frame 1 through bearings.

And, the front tension roller 21, the front fixed roller 22, the front swing roller 23, the rear fixed roller 31, the rear tension roller 32, and the rear swing roller 33 are arranged in parallel; the front tension roller 21 and the rear fixing roller 31 are identical in structure and uniform in installation height.

As shown in fig. 2, in the normal mode, the front swing roller 23 is located at the upper side of the front tension roller 21, and the rear swing roller 33 is located at the front side of the rear fixed roller 31; at this time, the web 6 passes only over the front tension roller 21 and the rear fixing roller 31, and the cloth 6 does not have tension. The outer diameter of the rear swing roller 33 is identical to the outer diameter of the rear fixed roller 31, and the rear swing roller 33 in the normal mode is provided on the front side of the rear fixed roller 31, and functions in the same manner as the front tension roller 21 and the rear tension roller 31, and plays a role in bearing the cloth 6.

In the tension mode, the front swing roller 23 is located at the front side of the front tension roller 21, and the rear swing roller 33 is located at the upper side of the rear tension roller 32; at this time, the web 6 is first partially contacted with the front tension roller 21 and the front fixed roller 22 by the traction of the front swing roller 23, and then partially contacted with the rear tension roller 32 by the traction of the rear swing roller 33, so that the cloth 6 has a certain tension.

In addition, the front tension control assembly 4 in the present application includes a telescopic cylinder 41, a driving rack 42, a driven gear 43, and a front bracket 44. The telescopic cylinder is fixedly arranged on the frame 1, the driving rack 42 is vertically and fixedly arranged at the telescopic end of the telescopic cylinder 41 and is driven by the telescopic cylinder 41 to move up and down, the driven gear 43 and the front bracket 44 are fixedly arranged on the rotating shaft of the front tension roller, the driven gear 43 and the driving rack 42 are in matched engagement, and the front swing roller 23 is rotationally connected to the front bracket 44. The front bracket 44 includes two front support plates (not shown) disposed opposite to each other, and the two front support plates are respectively disposed at two ends of the front tension roller 21 and fixedly connected to the rotating shaft of the front tension roller 21, and two ends of the front swing roller 23 are respectively rotatably connected to the two front support plates in a one-to-one correspondence manner through bearings.

The rear tension control assembly 5 comprises a swing cylinder 51 and a rear bracket 52, the swing shaft of the swing cylinder 51 is axially and fixedly connected with the rotating shaft of the rear fixed roller 31, the rear bracket 52 is fixedly arranged on the rotating shaft of the rear fixed roller 31, and the rear swing roller 33 is rotatably connected to the rear bracket 52. The rear bracket 52 includes two rear supporting plates (not shown) disposed opposite to each other, and the two rear supporting plates are disposed at two ends of the rear fixing roller 31 and fixedly connected to the rotating shaft of the rear fixing roller 31, and two ends of the rear swing roller 33 are rotatably connected to the two rear supporting plates in a one-to-one correspondence manner through bearings.

It should be noted that the structures of the front bracket 44 and the rear bracket 52 are conventional, and will not be described herein in detail.

In addition, a controller (not shown) is also included, which is connected to both the telescopic cylinder 41 and the swinging cylinder 51 to control the mechanism to operate normally.

Therefore, the utility model has the following advantages:

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations which can be accomplished by persons skilled in the art without departing from the spirit and technical spirit of the present utility model shall be covered by the appended claims.

Claims

1. The tension switching mechanism comprises a frame (1), and is characterized in that the frame (1) is provided with:

a front tension switching roller set (2), wherein the front tension switching roller set (2) comprises a front tension roller (21), a front fixed roller (22) and a front swinging roller (23), the front fixed roller (22) is arranged below the front side of the front tension roller (21), and the front swinging roller (23) can be positioned on the upper side or the front side of the front tension roller (21) through a front tension control assembly (4);

a back tension switching roller set (3), wherein the back tension switching roller set (3) comprises a back fixed roller (31), a back tension roller (32) and a back swinging roller (33), the back tension roller (32) is arranged on the upper side of the back fixed roller (31), and the back swinging roller (33) can be positioned on the front side of the back fixed roller (31) or the upper side of the back tension roller (32) through a back tension control assembly (5);

in a normal mode, the front swing roller (23) is positioned on the upper side of the front tension roller (21), and the rear swing roller (33) is positioned on the front side of the rear fixed roller (31);

in tension mode, the front swing roller (23) is located at the front side of the front tension roller (21), and the rear swing roller (33) is located at the upper side of the rear tension roller (32).

2. A tension switching mechanism as recited in claim 1, wherein: the front tension control assembly (4) comprises a telescopic cylinder (41), a driving rack (42), a driven gear (43) and a front support (44), wherein the telescopic cylinder (41) is fixedly arranged on the frame (1), the driving rack (42) is vertically fixedly arranged at the telescopic end of the telescopic cylinder (41) and is driven by the telescopic cylinder (41) to move up and down, the driven gear (43) and the front support (44) are fixedly arranged on the rotating shaft of the front tension roller (21), the driven gear (43) and the driving rack (42) are meshed in a matched mode, and the front swing roller (23) is rotationally connected to the front support (44).

3. A tension switching mechanism as recited in claim 2, wherein: the back tension control assembly (5) comprises a swing cylinder (51) and a back support (52), a swing shaft of the swing cylinder (51) is axially and fixedly connected with a rotating shaft of the back fixing roller (31), the back support (52) is fixedly arranged on the rotating shaft of the back fixing roller (31), and the back swing roller (33) is rotationally connected to the back support (52).

4. A tension switching mechanism as recited in claim 2, wherein: the front support (44) comprises two front support plates which are oppositely arranged, the two front support plates are respectively arranged at two ends of the front tension roller (21) and fixedly connected with a rotating shaft of the front tension roller (21), and two ends of the front swinging roller (23) are respectively and correspondingly connected with the two front support plates in a rotating manner through bearings.

5. A tension switching mechanism as recited in claim 3 wherein: the rear support (52) comprises two rear support plates which are oppositely arranged, the two rear support plates are respectively arranged at two ends of the rear fixing roller (31) and fixedly connected with a rotating shaft of the rear fixing roller (31), and two ends of the rear swinging roller (33) are respectively and correspondingly connected with the two rear support plates in a rotating manner through bearings.

6. A tension switching mechanism as recited in claim 3 wherein: the device also comprises a controller which is connected with the telescopic cylinder (41) and the swinging cylinder (51) at the same time.