CN217397960U

CN217397960U - Membrane material unwinding mechanism

Info

Publication number: CN217397960U
Application number: CN202220215037.6U
Authority: CN
Inventors: 李小禹
Original assignee: Wenzhou Kelei Laser Science & Technology Co ltd
Current assignee: Wenzhou Kelei Laser Science & Technology Co ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-09-09
Anticipated expiration: 2032-01-26

Abstract

The utility model provides a membrane material unwinding mechanism, including unreeling the frame, unreel roller and damping device, it is equipped with two vertical grooves and backup pad to unreel the frame, damping device includes roof pressure subassembly and supporting component, the roof pressure subassembly includes the knock-out roll, slider and roof pressure spring, it all installs at two vertical grooves to unreel roller and knock-out roll, supporting component includes the support frame, first supporting spring and two backing rolls, it leans on the support to act on through the three elasticity tops in triangle position for stable operation state to unreel the roller, installation and operation to unreeling the roller all have the cushioning effect, the unreeling roller of the continuous ejection of compact can slowly come-up in order to prevent the top pressure abrupt drop of knock-out roll simultaneously, promote stable effect.

Description

Membrane material unwinding mechanism

Technical Field

The utility model relates to an blooming make-up machine field, concretely relates to membrane material unwinding mechanism.

Background

The existing optical film forming machine has the defect of poor operation stability of the unwinding roller, the unwinding roller can reduce the outer diameter due to the reduction of the film materials during the unwinding process, so that the rotating speed of the unwinding roller is continuously improved, and the mounting connection of the unwinding roller is basically a connection mode convenient for mounting and dismounting due to the requirement of mounting and dismounting the film materials, the unwinding roller at high rotating speed is easy to vibrate, and the problems of inconsistent elastic state, direction deviation and the like of the film materials which are easily unwound are easily caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a membrane material unwinding mechanism:

a film unwinding mechanism comprises an unwinding frame, an unwinding roller and a damping device, wherein the unwinding frame is provided with two vertical grooves and a supporting plate, the damping device comprises a jacking assembly and a supporting assembly, the jacking assembly comprises a jacking roller, a sliding block and a jacking spring, the unwinding roller and the jacking roller are both arranged in the two vertical grooves, the jacking roller is abutted against the position right above the unwinding roller, a sliding block sliding rail is matched with the vertical grooves and used for installing the jacking roller, the jacking spring is positioned in the vertical grooves and abutted between the upper end of the vertical grooves and the sliding block, the supporting assembly comprises a supporting frame, a first supporting spring and two supporting rollers, the two supporting rollers are arranged on the supporting frame and symmetrically abutted against the lateral lower side of the unwinding roller, the bottom end of the supporting frame is provided with a stand column, the stand column is inserted into a sleeve pipe fixedly arranged on the supporting plate and forms sliding fit, the first supporting spring is sleeved on the sleeve, and the first supporting spring abuts against the supporting frame and the supporting plate.

Preferably, the jacking assembly further comprises slide bars, the upper ends of the vertical grooves are communicated with slide holes, the slide bars are matched with the slide holes in a sliding mode, the lower ends of the slide bars penetrate into the vertical grooves and are connected to the slide blocks, the outer ends of the two slide bars are connected through lifting rods, jacking springs are sleeved on the slide bars, the positions of the jacking springs are stabilized, and the two slide bars can move upwards simultaneously by lifting the lifting rods.

Preferably, the support frame still includes two horizontal slide rails, the both ends of horizontal slide rail all are equipped with restriction portion, every restriction portion all pushes up in proper order and leans on second supporting spring and installation piece, second supporting spring cover is located horizontal slide rail, installation piece slide rail cooperate in horizontal slide rail, the backing roll is located two between the horizontal slide rail and install two on the installation piece, the interval that makes two backing rolls can change to follow the change of film material external diameter on the unreeling roller and lean on the support in order to implement the top, promote the stability of supported state.

Preferably, still fixedly on the horizontal sliding rail be equipped with the stopper, the stopper is located one side of installation piece constitutes the top of sliding of installation piece leans on spacingly to the minimum interval of two backing rolls of restriction, two backing rolls can not take place the contact after unloading the unwinding roller yet, also make things convenient for the installation of unwinding roller simultaneously.

Preferably, one side of the vertical groove is provided with a loading and unloading opening and a bump, the bump is positioned above the loading and unloading opening and forms a sliding and propping limit of the sliding block, the bump prevents the sliding block from moving to the loading and unloading opening to prevent separation or blocking, and when the unreeling roller cannot be loaded and unloaded after being inclined, the unreeling roller can be loaded and unloaded through the loading and unloading opening.

The utility model discloses following beneficial effect has: the unwinding roller provided with the film material is supported by three positions in a triangular direction to be in a stable operation state, the supporting part is elastic, the unwinding roller is installed and operated in a damping mode, the unwinding roller continuously discharging can slowly float upwards to prevent top pressure shock of the top roller, and the stable effect is improved.

Drawings

Fig. 1 is a schematic structural diagram of the embodiment.

FIG. 2 is a schematic diagram of a side view of the embodiment.

FIG. 3 is a schematic side view of the embodiment.

Fig. 4 is a schematic top view of a support roller mounting structure of the embodiment.

FIG. 5 is a schematic view of the operation principle of the junction according to the embodiment

1. Unwinding the frame; 2. unwinding the roller; 3. a vertical slot; 4. a support plate; 5. a top roll; 6. a slider; 7. pressing the spring; 8. a support frame; 9. a first support spring; 10. a support roll; 11. a column; 12. a sleeve; 13. a slide bar; 14. lifting a rod; 15. a horizontal slide rail; 16. a restricting section; 17. a second support spring; 18. mounting a block; 19. a limiting block; 20. a loading and unloading port; 21. and (4) a bump.

Detailed Description

The present invention will be further described with reference to the accompanying drawings 1 to 5 and the embodiments.

A film material unwinding mechanism comprises an unwinding frame 1, an unwinding roller 2 and a damping device, wherein the unwinding frame 1 is provided with two vertical grooves 3 and a support plate 4, the damping device comprises a jacking component and a support component, the jacking component comprises a jacking roller 5, a sliding block 6, a sliding rod 13 and a jacking spring 7, the unwinding roller 2 and the jacking roller 5 are both arranged in the two vertical grooves 3, the jacking roller 5 abuts against the upper side of the unwinding roller 2, a sliding rail of the sliding block 6 is matched with the vertical grooves 3 and used for installing the jacking roller 5, the upper end of each vertical groove 3 is communicated with a sliding hole, the sliding rod 13 is matched with the sliding hole in a sliding manner, the lower end of the sliding rod 13 penetrates into the vertical groove 3 and is connected with the sliding block 6, the outer ends of the two sliding rods 13 are connected through a lifting rod 14, the two sliding rods 13 can simultaneously move upwards by lifting the lifting rod 14, the jacking spring 7 is positioned in the vertical grooves 3 and sleeved on the sliding rod 13, the jacking spring 7 abuts against the upper end of the vertical groove 3 and the sliding block 6, the vertical groove 3 is provided with a loading and unloading opening 20 and a lug 21 at one side, the lug 21 is positioned above the loading and unloading opening 20 and forms a sliding and abutting limit of the slide block 6, the lug 21 prevents the slide block 6 from moving to the loading and unloading opening 20, and when the unwinding roller 2 cannot be loaded and unloaded after being inclined, the unwinding roller 2 can be loaded and unloaded through the loading and unloading opening 20.

The supporting component comprises a supporting frame 8, a first supporting spring 9, two supporting rollers 10 and two horizontal sliding rails 15, wherein the two supporting rollers 10 are installed on the supporting frame 8 and are symmetrically propped against the lateral lower part of the unwinding roller 2, the bottom end of the supporting frame 8 is provided with an upright post 11, the upright post 11 is inserted into a sleeve 12 fixedly arranged on the supporting plate 4 and forms sliding fit, the first supporting spring 9 is sleeved on the sleeve 12, the first supporting spring 9 is propped against between the supporting frame 8 and the supporting plate 4, two ends of the horizontal sliding rails 15 are respectively provided with a limiting part 16, each limiting part 16 is sequentially propped against a second supporting spring 17 and a mounting block 18, the second supporting spring 17 is sleeved on the horizontal sliding rails 15, the mounting blocks 18 are matched with the horizontal sliding rails 15, the supporting rollers 10 are positioned between the two horizontal sliding rails 15 and are installed on the two mounting blocks 18, so that the distance between the two supporting rollers 10 can be changed to be propped against and supported along with the change of the outer diameter of a film material on the unwinding roller 2, the stability of the supporting state is improved.

The horizontal sliding rail 15 is further fixedly provided with a limiting block 19, the limiting block 19 is located on one side of the mounting block 18 and forms a sliding and abutting limit of the mounting block 18 so as to limit the minimum distance between the two supporting rollers 10, the two supporting rollers 10 cannot be contacted after the unwinding roller 2 is dismounted, and meanwhile, the unwinding roller 2 is also convenient to mount.

The working principle is as follows: after the top roller 5 is lifted and the unreeling roller 2 is unloaded, the whole film material is installed on the unreeling roller 2, then the vertical groove 3 is put back, the top roller 5 is put down, at the moment, as shown in figure 5, the outer diameter and the quality of the film material installed on the unreeling roller 2 are increased, the top roller 5 props the unreeling roller 2 from the upper part, the two supporting rollers 10 are propped by the unreeling roller 2 and are pushed away from the outer side, the second supporting spring 17 is further compressed to be balanced, the supporting rollers 10 do not move laterally any more, meanwhile, the first supporting spring 9 is further compressed to reach the supporting balance, so that the axial direction of the unreeling roller 2 is stable, the film material is not damaged, the film material is continuously sent out in the running unreeling process of the unreeling roller 2, so that the outer diameter and the quality of the film material on the unreeling roller 2 are gradually reduced, the rotating speed of the unreeling roller 2 is also continuously increased, so that the unreeling roller 2 continuously and slowly moves up along the vertical groove 3, and the first supporting spring 9 and the second supporting spring 17 are continuously reduced in compression amount, two backing rolls 10 will last rebound and be close to each other and lean on in order to keep with the top of unreeling the roller 2 on the coating material, and the top roll 5 will keep the state of roof pressure downwards, and top roll 5 and two backing rolls 10 remain throughout to the coating material on unreeling the roller 2 and are the triangle top and lean on the state, are static friction roll simultaneously and lean on, do not influence unreel and the vibrations that bring of unreeling the roller 2 that the slow-release constantly improved the rotational speed, guarantee to unreel the stable of roller 2 and unreel.

Note that the change in the pressing force of the top roller 5 against the film material is described. Generally, the film is conveyed at a constant speed, namely the quality of the film on the unwinding roller 2 is reduced at a constant speed, and the rotating speed of the unwinding roller 2 is increased at an increased speed, so that the outer diameter of the film is reduced at an increased speed, the downward moving speed of the top roller 5 is accelerated and downward moved, namely the jacking force under the action of the jacking spring 7 is reduced at an increased speed, but due to the action of the supporting component, the upward moving speed of the top roller 5 can be relieved based on the slow upward moving speed of the unwinding roller 2, and the situation that the jacking force of the top roller 5 is reduced too fast to press the unwinding roller 2 is avoided.

It is to be understood that the above-described embodiments of the present invention are merely examples for illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. There is no need or no way to give poor examples of all embodiments. And that such obvious changes and modifications are within the scope of the present invention as defined by the appended claims.

Claims

1. The utility model provides a membrane material unwinding mechanism which characterized in that: the device comprises an unwinding frame (1), an unwinding roller (2) and a damping device, wherein the unwinding frame (1) is provided with two vertical grooves (3) and a supporting plate (4), the damping device comprises a jacking component and a supporting component, the jacking component comprises a jacking roller (5), a sliding block (6) and a jacking spring (7), the unwinding roller (2) and the jacking roller (5) are both arranged in the two vertical grooves (3), the jacking roller (5) is propped against the position right above the unwinding roller (2), the sliding block (6) is matched with the vertical grooves (3) in a sliding way and is used for installing the jacking roller (5), the jacking spring (7) is positioned in the vertical grooves (3) and propped against the position between the upper end of the vertical grooves (3) and the sliding block (6), the supporting component comprises a supporting frame (8), a first supporting spring (9) and two supporting rollers (10), two backup roll (10) are installed support frame (8) are gone up and the symmetry top leans on unreel the side below of roller (2), the bottom of support frame (8) is equipped with stand (11), stand (11) insert in backup pad (4) fixed sleeve pipe (12) that are equipped with and constitute the cooperation of sliding, first supporting spring (9) cover is located sleeve pipe (12), just first supporting spring (9) top is leaned on support frame (8) with between backup pad (4).

2. The film material unwinding mechanism of claim 1, wherein: the jacking assembly further comprises a sliding rod (13), the upper end of the vertical groove (3) is communicated with a sliding hole, the sliding rod (13) is matched with the sliding hole in a sliding mode, the lower end of the sliding rod (13) penetrates into the vertical groove (3) and is connected with the sliding block (6), the outer ends of the two sliding rods (13) are connected through a lifting rod (14) which is arranged, and the sliding rod (13) is sleeved with the jacking spring (7).

3. The film material unwinding mechanism of claim 1, wherein: support frame (8) still include two horizontal slide rail (15), the both ends of horizontal slide rail (15) all are equipped with restriction portion (16), every restriction portion (16) all push up in proper order and lean on second supporting spring (17) and installation piece (18), second supporting spring (17) cover is located horizontal slide rail (15), installation piece (18) slide rail cooperate in horizontal slide rail (15), backing roll (10) are located two between horizontal slide rail (15) and install two on installation piece (18).

4. The film material unwinding mechanism of claim 3, wherein: the horizontal sliding rail (15) is further fixedly provided with a limiting block (19), and the limiting block (19) is located on one side of the mounting block (18) and forms the sliding, propping and limiting of the mounting block (18).

5. The film material unwinding mechanism of claim 1, wherein: one side of the vertical groove (3) is provided with a loading and unloading opening (20) and a convex block (21), and the convex block (21) is positioned above the loading and unloading opening (20) and forms the sliding, propping, leaning and limiting position of the sliding block (6).