CN217263715U

CN217263715U - Film unreels tension adjusting device

Info

Publication number: CN217263715U
Application number: CN202221280399.XU
Authority: CN
Inventors: 谈源; 谢刚; 范春雷; 保智征; 沈阳; 李霆
Original assignee: Changzhou Xinchuang Aviation Technology Co ltd
Current assignee: Changzhou Xinchuang Aviation Technology Co ltd
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-08-23
Anticipated expiration: 2032-05-24

Abstract

The utility model relates to a technical field is cut to preimpregnation material, especially relates to a film unreels tension adjusting device, include: the unwinding device comprises an unwinding assembly, a tension assembly and an adjusting assembly; the unwinding assembly comprises an unwinding shaft and an unwinding disc sleeved at one end of the unwinding shaft; the tension assembly is sleeved on the unwinding shaft and applies initial tension to the unwinding shaft; the adjusting assembly is arranged at one end of the unreeling shaft, which is far away from the unreeling assembly, and comprises a damping disc, a damping belt, a tension spring and a fixed plate, the damping disc is sleeved on the unreeling shaft, the damping belt is wound on the damping disc, one end of the damping belt is directly connected with the fixed plate, and the other end of the damping belt is connected with the fixed plate through the tension spring; through the tip at unreeling the axle set up adjusting part, adjust the torsional spring and unreel the tension between the axle, establish damping dish cover on unreeling the axle to with the damping area around establishing on damping dish, and connect the extension spring, unreel the axle and unreel required rotary tension and convert the pulling force of sharp, thereby the tensile length of control extension spring controls tension size, makes the film unreel the process stabilization.

Description

Film unreels tension adjusting device

Technical Field

The utility model relates to a technical field is cut to the preimpregnation material, especially relates to a film unreels tension adjusting device.

Background

The prepreg slitting processing refers to that when a thin prepreg plate is conveyed, the front end of the prepreg is pulled through a friction roller, then in order to better meet the requirements of various widths of an automatic filament spreading machine, a wide prepreg is required to be cut into a plurality of narrow-band prepregs according to a certain size, then a film layer is coated to prevent adhesion between layers, and the narrow-band prepregs are wound to be used.

The prepreg narrowband after cutting needs unreel the film layer simultaneously in the rolling, among the correlation technique, uses the squeezing action of torsional spring usually for produce frictional force between unreeling axle and the torsional spring, thereby make the film unreel the dish and have certain initial tension, but at the in-process that the film unreeled, the torsional spring with unreel the frictional force between the axle unstable, lead to the film to unreel the process unstable, influence the rolling quality of prepreg narrowband.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the film unreeling tension adjusting device is used for enabling the film unreeling tension to be stable and guaranteeing the reeling quality of the prepreg narrow bands.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a film unwinding tension adjusting device, comprising: the unwinding device comprises an unwinding assembly, a tension assembly and an adjusting assembly;

the unwinding assembly comprises an unwinding shaft and an unwinding disc sleeved at one end of the unwinding shaft; the tension assembly is sleeved on the unwinding shaft and applies initial tension to the unwinding shaft;

the adjusting part is arranged on the unreeling shaft, the unreeling shaft is far away from one end of the unreeling part and comprises a damping disc, a damping belt, a tension spring and a fixed plate, the damping disc is sleeved on the unreeling shaft, the damping belt is wound on the damping disc, one end of the damping disc is directly connected with the fixed plate, and the other end of the damping disc is connected with the fixed plate through the tension spring.

Furthermore, the fixing plate comprises a first straight plate and a second straight plate, the first straight plate is parallel to the axis of the unreeling shaft, and the second straight plate is perpendicular to the first straight plate.

Furthermore, be provided with first connecting piece perpendicularly on the first straight board, first connecting piece tip is equipped with the round hole, the extension spring tip pass the round hole, with first connecting piece is connected.

Furthermore, a second connecting piece is vertically arranged on the second straight plate, and the end part of the damping belt is bent into a ring shape and sleeved on the second connecting piece.

Further, the tension assembly includes mount pad, elastic ring, torsional spring and clamping ring, the mount pad rotates to set up unreel the axle the other end, the elastic ring the torsional spring with the clamping ring cover is established unreel on the axle, elastic ring one side with the terminal surface contact of mount pad, the opposite side with torsional spring one end is connected, the torsional spring other end with the clamping ring is connected.

Further, the axial position of the pressing ring relative to the unreeling shaft can be adjusted.

Furthermore, the elastic ring faces one side of the torsion spring and is provided with a placing groove, a thrust ball bearing is sleeved on the unwinding shaft, and the thrust ball bearing is embedded in the placing groove.

Furthermore, one side of the thrust ball bearing is fixed at the bottom of the placing groove, and the other side of the thrust ball bearing is fixedly connected with one end, facing the elastic ring, of the torsion spring.

Furthermore, the unreeling assembly further comprises a bearing and a limiting block, the bearing sleeve is arranged at the end of the unreeling shaft, the unreeling disc is sleeved on the bearing, the limiting block is arranged on one side of the unreeling disc, and the unreeling disc is limited to move relative to the bearing.

Furthermore, unreeling the dish and including two pressure disks, the film material area is located two between the pressure disk, two the pressure disk parallel arrangement of each other presss from both sides the film material area tightly.

The utility model has the advantages that: the utility model discloses a tip at unreeling the axle sets up adjusting part, adjusts the torsional spring and unreels the tension between the axle, through establish damping dish cover on unreeling the axle to with the damping area around establishing on the damping dish, and connect the extension spring, unreel the axle and unreel required rotary tension and convert the pulling force of sharp, thereby control the tension size through the tensile length of control extension spring, make the film unreel the process stability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of an installation position of a film unwinding tension adjusting device in an embodiment of the present invention;

fig. 2 is a schematic structural view of a film unwinding tension adjusting device according to an embodiment of the present invention;

fig. 3 is a front view of a film unwinding tension adjusting device in an embodiment of the present invention;

fig. 4 is an exploded view of the film unwinding tension adjusting device in the embodiment of the present invention;

fig. 5 is a schematic structural diagram of an adjusting assembly according to an embodiment of the present invention.

Reference numerals: 10. an unwinding assembly; 11. unwinding the reel; 12. releasing the reel; 12a, a platen; 13. a bearing; 14. a limiting block; 20. a tension assembly; 21. a mounting seat; 22. an elastic ring; 22a, a placing groove; 23. a torsion spring; 24. pressing a ring; 25. a thrust ball bearing; 30. an adjustment assembly; 31. a damping disc; 32. a damping band; 33. a tension spring; 34. a fixing plate; 34a, a first straight plate; 34b, a second straight plate; 34c, a first connecting piece; 34d, second connecting piece.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 5, the film unwinding tension adjusting device includes: the unwinding assembly 10, the tension assembly 20 and the adjusting assembly 30;

the unwinding assembly 10 comprises an unwinding shaft 11 and an unwinding disc 12 sleeved at one end of the unwinding shaft 11; the tension assembly 20 is sleeved on the unreeling shaft 11 and applies initial tension to the unreeling shaft 11, where it is noted that the unreeling shaft 11 is arranged perpendicular to a vertical plane of the rack, and the tension assembly 20 and the adjusting assembly 30 are located inside and outside the rack respectively;

the adjusting assembly 30 is arranged at one end of the unreeling shaft 11 far away from the unreeling assembly 10 and comprises a damping disc 31, a damping belt 32, a tension spring 33 and a fixing plate 34, the damping disc 31 is sleeved on the unreeling shaft 11, the damping belt 32 is wound on the damping disc 31, one end of the damping belt is directly connected with the fixing plate 34, and the other end of the damping belt is connected with the fixing plate 34 through the tension spring 33.

Through the tip at unreeling axle 11 sets up adjusting part 30, adjust the tension between torsional spring 23 and the unreeling axle 11, through establish damping dish 31 cover on unreeling axle 11 to with damping area 32 around establishing on damping dish 31, and connect extension spring 33, unreel axle 11 and unreel required rotary tension and convert the pulling force of sharp, thereby control tension size through the tensile length of control extension spring 33, make the film unreel the process stability.

Specifically, the fixing plate 34 comprises a first straight plate 34a and a second straight plate 34b, the first straight plate 34a is arranged parallel to the axis of the unreeling shaft 11, the second straight plate 34b and the first straight plate 34a are perpendicular to each other, and the second straight plate 34b is fixed on the rack, so that the installation is simple and quick.

Because the damping belt 32 is a flat belt, the fixing and adjusting of the end of the damping belt 32 are difficult to a certain extent, in the present embodiment, the second straight plate 34b is vertically provided with the second connecting piece 34d, the end of the damping belt 32 is bent into a ring shape and sleeved on the second connecting piece 34d, the axis of the second connecting piece 34d is parallel to the axis of the damping disc 31 to ensure that the damping disc receives tangential force, the first straight plate 34a is vertically provided with the first connecting piece 34c, the end of the first connecting piece 34c is provided with a circular hole, the end of the tension spring 33 passes through the circular hole and is connected with the first connecting piece 34c, the position of the first connecting piece 34c relative to the first straight plate 34a is adjusted to enable the tension spring 33 to extend to different lengths, and stable and uniform tension is applied to the unwinding shaft 11 under the action of the damping shaft and the damping disc 31.

Specifically, the tension assembly 20 comprises a mounting seat 21, an elastic ring 22, a torsion spring 23 and a pressing ring 24, the mounting seat 21 is rotatably arranged at the other end of the unwinding shaft 11, the elastic ring 22, the torsion spring 23 and the pressing ring 24 are sleeved on the unwinding shaft 11, one side of the elastic ring 22 is in contact with the end face of the mounting seat 21, the other side of the elastic ring is connected with one end of the torsion spring 23, and the other end of the torsion spring 23 is connected with the pressing ring 24; the torsion spring 23 is pressed by the pressing ring 24, and the torsion spring 23 has a certain elastic potential energy, so that when the unreeling shaft 11 rotates, it has a certain initial tension and returns to the initial position under the action of the torsion spring 23.

Preferably, the pressing ring 24 is arranged to be adjustable in position relative to the axial direction of the unwinding shaft 11, a placing groove 22a is formed in one side of the elastic ring 22 facing the torsion spring 23, a thrust ball bearing 2513 is sleeved on the unwinding shaft 11, and the thrust ball bearing 2513 is embedded in the placing groove 22 a; one side of the thrust ball bearing 2513 is fixed at the bottom of the placing groove 22a, and the other side is fixedly connected with one end of the torsion spring 23 facing the elastic ring 22; the compression force of the torsion spring 23 is transmitted through the thrust ball bearing 2513 and reversely rotates, so that the torsion of the torsion spring 23 is offset, and noise is prevented from being generated when the torsion spring 23 is reset due to the torsion.

Specifically, unreel subassembly 10 still includes bearing 13 and restriction piece 14, and bearing 13 cover is established at unreeling 11 tip, unreels that 12 covers are established on bearing 13, and restriction piece 14 sets up and is putting 12 one sides of reel, and the restriction is put reel 12 and is removed for bearing 13, and bearing 13 drives and is put reel 12 and rotate along with unreeling 11 rotates, and restriction piece 14 then prevents to put reel 12 and unreel the in-process and drop.

Preferably, the unwinding disc 12 comprises two pressing discs 12a, the film material belt is located between the two pressing discs 12a, and the two pressing discs 12a are arranged in parallel to each other to clamp the film material belt, so that the material belt is prevented from scattering during the unwinding process.

It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a film unreels tension adjusting device which characterized in that includes: the unwinding device comprises an unwinding assembly, a tension assembly and an adjusting assembly;

the adjusting part sets up unreel the axle and keep away from unreel the one end of subassembly, including damping dish, damping area, extension spring and fixed plate, the damping dish cover is established unreel the epaxial, the damping area is around establishing on the damping dish, one end directly with the fixed plate is connected, and the other end passes through the extension spring with the fixed plate is connected.

2. The film unwinding tension adjusting device of claim 1, wherein the fixing plate comprises a first straight plate and a second straight plate, the first straight plate is disposed parallel to an axis of the unwinding shaft, and the second straight plate and the first straight plate are perpendicular to each other.

3. The film unwinding tension adjusting device as claimed in claim 2, wherein a first connecting member is vertically disposed on the first straight plate, a circular hole is disposed at an end of the first connecting member, and the tension spring end passes through the circular hole and is connected to the first connecting member.

4. The film unwinding tension adjusting device as claimed in claim 3, wherein a second connecting member is vertically disposed on the second straight plate, and an end of the damping band is bent into a ring shape and sleeved on the second connecting member.

5. The film unwinding tension adjusting device as claimed in claim 1, wherein the tension assembly includes a mounting seat, an elastic ring, a torsion spring and a pressing ring, the mounting seat is rotatably disposed at the other end of the unwinding shaft, the elastic ring, the torsion spring and the pressing ring are sleeved on the unwinding shaft, one side of the elastic ring is in contact with the end face of the mounting seat, the other side of the elastic ring is connected with one end of the torsion spring, and the other end of the torsion spring is connected with the pressing ring.

6. The film unwinding tension adjusting device of claim 5, wherein the pressing ring is adjustably positioned with respect to an axial direction of the unwinding shaft.

7. The film unwinding tension adjusting device as claimed in claim 6, wherein a placing groove is formed in one side of the elastic ring facing the torsion spring, and a thrust ball bearing is sleeved on the unwinding shaft and embedded in the placing groove.

8. The film unwinding tension adjusting device as claimed in claim 7, wherein one side of the thrust ball bearing is fixed to a bottom of the placement groove, and the other side of the thrust ball bearing is fixedly connected to one end of the torsion spring facing the elastic ring.

9. The film unwinding tension adjusting device according to claim 1, wherein the unwinding assembly further comprises a bearing and a limiting block, the bearing is sleeved at the end of the unwinding shaft, the unwinding disc is sleeved on the bearing, and the limiting block is arranged on one side of the unwinding disc to limit the unwinding disc to move relative to the bearing.

10. The film unwinding tension adjusting device as claimed in claim 9, wherein the unwinding reel comprises two pressing plates, and the film material belt is located between the two pressing plates, and the two pressing plates are parallel to each other to clamp the film material belt.