CN213679111U

CN213679111U - Film conveying and tensioning mechanism for film printing machine

Info

Publication number: CN213679111U
Application number: CN202022333344.8U
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhejiang Borui Printing And Dyeing Equipment Co ltd
Current assignee: Zhejiang Borui Printing And Dyeing Equipment Co ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-07-13
Anticipated expiration: 2030-10-20

Abstract

The utility model discloses a film conveying and tensioning mechanism for a film printing machine, which comprises a supporting frame and a rotary drum; a support frame: a supporting table is fixed on the lower side of the interior of the support table, a fixed shaft penetrates through the upper end of the supporting table, and second gears are fixed at the left end and the right end of the fixed shaft; rotating the drum: there are two and symmetry settings, rotate through the pivot between the lower extreme of two rotary drums and have the pressure regulating seat, and the middle-end downside of every rotary drum has all passed and has adhered to the bucket, and two are adhered to the bucket and rotate respectively in the inside left and right sides of support frame through the pivot, and two second gears are located two respectively and adhere to the bucket, the rotary drum internalization interlude has double-toothed plate, double-toothed plate's the equal linear array in upper and lower side tooth piece of having arranged. The film conveying and tensioning mechanism for the film printer can tension the film to avoid the film from loosening, eliminate static friction between the film and the roller while tensioning the film and avoid the film from being over tensioned or over loosened.

Description

Film conveying and tensioning mechanism for film printing machine

Technical Field

The utility model relates to a film production auxiliary assembly technical field specifically is a straining device is carried to film for film printing machine.

Background

The film printing machine is a printing machine for printing single-color or multi-color patterns on various types of films, and the printing process comprises the following steps: the rolled film is unfolded by the unwinding mechanism and then is conveyed to the impressing device through the conveying roller to be pressed and dyed with patterns, then the moist patterns are quickly dried by the heating device, and finally the unfolded film is wound by the winding mechanism so as to complete the whole printing process; the common printer film flattening device only can play a certain anti-wrinkle effect, cannot effectively tension the film, and sometimes the film is in a loose state when being introduced into a printer for printing, so that incomplete printing is generated when the printer prints on the surface of the film; in the design provided by the reference 201921764634.9, the tension of the film surface can be adjusted to tension the film, but the design adjusts the tension by moving the roller up and down, and the film has static friction with the roller during the conveying process, when the roller suddenly rises or falls, the roller must rotate along with the film conveying, and the other side needs to overcome the static friction between the film and the roller, if the processing is not proper, the film can be partially over-stretched or over-relaxed, and sometimes even the film is broken because the roller moves too fast.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a tensioning mechanism is carried to film for film printing machine, at first can carry out the tensioning to the film, avoid the film to relax to can eliminate the static friction power between film and the roller in the tensioning film, avoid the excessive tensioning of film or excessively relax, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a film conveying and tensioning mechanism for a film printing machine comprises a supporting frame and a rotary drum;

a support frame: a supporting table is fixed on the lower side of the interior of the support table, a fixed shaft penetrates through the upper end of the supporting table, and second gears are fixed at the left end and the right end of the fixed shaft;

rotating the drum: there are two and the symmetry setting, rotate through the pivot between the lower extreme of two rotary drums and have the pressure regulating seat, and the middle-end downside of every rotary drum has all passed and has adhered to the bucket, and two are adhered to the bucket and rotate respectively in the inside left and right sides of support frame through the pivot, and two second gears are located two respectively and adhere to the bucket, the rotary drum internalization alternates there is double-sided toothed plate, the equal linear array of the last downside of double-sided toothed plate arranges the tooth piece, second gear and below one row of tooth piece intertooth meshing, the upper end of the one side that two rotary drums kept away from each other is fixed with the backup pad, and the one side that is close to each other of the upper end of two backup pads all rotates through the pivot has first gear, first gear and the meshing of last one row of tooth piece intertooth, is fixed with main commentaries on classics roller between two first gears, it has the film roller to rotate through the pivot in the side of main, the film is tensioned by the film connecting roller in a way of pressing the film, the film connecting roller is driven to rotate up and down around the attaching barrel through the loosening or tensioning of the film, and the film connecting roller rotates along with the main rotating roller, so that the static friction force between the film connecting roller and the film is eliminated, and the quality of the film is ensured.

Furthermore, the protective baffle frame is fixed on the rear side of the support frame and corresponds to the pressure regulating seat up and down, and the protective baffle frame prevents personnel from being hit by the pressure regulating seat.

Furthermore, the film splicing device also comprises weight increasing blocks which are movably arranged in the pressure regulating seat, the linear arrays of the weight increasing blocks are arranged in the pressure regulating seat, and the pressing tension force of the film splicing roller on the film is indirectly controlled by increasing or decreasing the weight increasing blocks.

Furthermore, the device also comprises two fixing seats which are respectively fixed at the front side and the rear side of the lower end of the supporting frame, and the overall stability of the device is improved through the fixing seats.

Furthermore, the device also comprises two limiting frames and an inner inserted rod, wherein one ends of the two limiting frames, which are close to each other, movably penetrate through the left end and the right end of the supporting frame, the inner inserted rod is fixed at the other end of the limiting frames, one ends of the two inner inserted rods, which are close to each other, movably penetrate through one sides, which are far away from each other, of the two rotary drums, and the rotary drums can be prevented from rotating when the device is not used through the limiting frames and the inner inserted rods, so that the device is convenient to carry or maintain.

Compared with the prior art, the beneficial effects of the utility model are that: this tensioning mechanism is carried to film for film printing machine has following benefit:

1. the film is tensioned by the film connecting roller in a way of pressing the film, the film connecting roller is driven to rotate up and down around the attaching barrel through the loosening or tensioning of the film, and the film connecting roller rotates along with the main rotating roller, so that the static friction force between the film connecting roller and the film is eliminated, and the quality of the film is ensured.

2. Keep off the frame through the protection and avoid personnel to be hit by the pressure regulating seat, come indirect control to connect the membrane roller to the pressure tensioning force of film through increase and decrease increase pouring weight, increase this device overall stability through the fixing base, can avoid the rotary drum to rotate when not using this device through restriction frame and interior bayonet socket, convenient transport or maintenance.

3. The film conveying and tensioning mechanism for the film printer can tension the film to avoid the film from loosening, eliminate static friction between the film and the roller while tensioning the film and avoid the film from being over tensioned or over loosened.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the present invention;

fig. 3 is a schematic view of the cross-sectional structure at a-a of the present invention.

In the figure: the device comprises a protective blocking frame 1, a supporting plate 2, a film receiving roller 3, a main rotating roller 4, a first gear 5, a double-sided toothed plate 6, a rotating drum 7, an attachment barrel 8, a second gear 9, a supporting frame 10, a fixed shaft 11, a supporting table 12, a fixed seat 13, a pressure regulating seat 14, a limiting frame 15, an inner inserted rod 16 and a weight increasing block 17.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a film conveying and tensioning mechanism for a film printing machine comprises a support frame 10 and a rotary drum 7;

support frame 10: a supporting table 12 is fixed on the lower side of the inside, a fixed shaft 11 passes through the upper end of the supporting table 12, second gears 9 are fixed at the left end and the right end of the fixed shaft 11, a protecting blocking frame 1 is further included and fixed at the rear side of the supporting frame 10 and is arranged corresponding to the pressure regulating seat 14 up and down, personnel are prevented from being hit by the pressure regulating seat 14 through the protecting blocking frame 1, two fixing seats 13 are further included and respectively fixed at the front side and the rear side of the lower end of the supporting frame 10, the integral stability of the device is improved through the fixing seats 13, a limiting frame 15 and two inner inserting rods 16 are further included, the limiting frame 15 is provided with two limiting frames 15, one ends of the two limiting frames 15, which are close to each other, movably pass through the left end and the right end of the supporting frame 10, the other ends of the two inner inserting rods 16 are fixed with the inner inserting rods 16, one ends of the two inner inserting rods 16, the carrying or maintenance is convenient;

the drum 7: the film splicing device is characterized by comprising two rotary drums 7 which are symmetrically arranged, a pressure regulating seat 14 is arranged between the lower ends of the two rotary drums 7 through a rotary shaft in a rotating mode, an attachment barrel 8 penetrates through the lower side of the middle end of each rotary drum 7, the two attachment barrels 8 respectively rotate on the left side and the right side in a supporting frame 10 through the rotary shaft, two second gears 9 are respectively positioned in the two attachment barrels 8, a double-face toothed plate 6 is movably inserted in each rotary drum 7, toothed blocks are arranged on the upper side and the lower side of each double-face toothed plate 6 in a linear array mode, the second gears 9 are meshed with the toothed blocks on the lower side in a staggered mode, a supporting plate 2 is fixed at the upper end of the side, far away from each other, of the two rotary drums 7, first gears 5 are respectively rotated on the sides, the first gears 5 are meshed with the toothed blocks on the upper side, a main rotary roller 4 is fixed between the two first gears 5, a film splicing roller 3 is rotated in the side of the main rotary roller 4 through, the film is tensioned by abutting the film receiving roller 3 against the film, the film receiving roller 3 is driven to rotate up and down around the attachment barrel 8 through loosening or tensioning of the film, the film receiving roller 3 is driven to rotate along with the main rotating roller 4, static friction between the film receiving roller 3 and the film is eliminated, the quality of the film is ensured, the film tensioning device further comprises a weight increasing block 17, the weight increasing block is movably installed in the pressure regulating seat 14, linear arrays of the weight increasing block are arranged in the pressure regulating seat 14, and the abutting tension force of the film receiving roller 3 on the film is indirectly controlled by increasing or decreasing the weight increasing block 17.

When in use: fixing the fixed seat 13 at a designated position through a screw, enabling the film to bypass the main rotating roller 4 from the upper part of the main rotating roller 4, enabling the film receiving roller 3 to abut against the film, driving the film receiving roller 3 to rotate when the film is normally conveyed, and smoothing the film by the film receiving roller 3; when the film is suddenly stretched, the film can press the film-connecting roller 3 downwards, the film-connecting roller 3 drives the main rotating roller 4 to rotate, the main rotating roller 4 drives the supporting plate 2 to rotate, the supporting plate 2 drives the rotary drum 7 to rotate, the rotary drum 7 drives the attaching barrel 8 to rotate, so that the main rotating roller 4 and the film-connecting roller 3 move downwards, the film protrusion height is reduced, the film is loosened, meanwhile, the rotation of the attaching barrel 8 and the rotary drum 7 drives the double-face toothed plate 6 to rotate, the double-face toothed plate 6 and the second gear 9 rotate relatively, because the second gear 9 does not move, the double-face toothed plate 6 moves downwards while rotating along with the rotary drum 7, the double-face toothed plate 6 drives the first gear 5 to rotate, the first gear 5 drives the main rotating roller 4 to rotate, the main rotating roller 4 drives the film-connecting roller 3 to rotate, the film-connecting roller 3 also revolves around the main rotating roller 4 while rotating, the process of the film-connecting roller 3 can avoid the static force between the film-connecting roller 3 and the film, when the film is suddenly loosened, the film receiving roller 3 can revolve reversely while rotating, so that the film is tensioned; the weight 17 can be placed or taken out from the pressure regulating seat 14 to indirectly regulate the pressure of the film receiving roller 3 to the film, when the device is not used, the limiting frame 15 is pulled to enable the inner insertion rod 16 to be inserted into the rotary drum 7 to fix the rotary drum 7, and the rotary drum 7 is prevented from rotating randomly during transportation or maintenance.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a tensioning mechanism is carried to film for film printing machine which characterized in that: comprises a support frame (10) and a rotary drum (7);

support frame (10): a supporting table (12) is fixed on the lower side of the interior, a fixed shaft (11) penetrates through the upper end of the supporting table (12), and second gears (9) are fixed at the left end and the right end of the fixed shaft (11);

drum (7): there are two and the symmetry setting, have pressure regulating seat (14) through the pivot rotation between the lower extreme of two rotary drums (7), and the middle-end downside of every rotary drum (7) has all passed and has adhered to bucket (8), and two are adhered to bucket (8) and rotate respectively in the inside left and right sides of support frame (10) through the pivot, and two second gear (9) are located two respectively and adhere to bucket (8), rotary drum (7) internalization interlude has double toothed plate (6), the equal linear array in upper and lower side of double toothed plate (6) arranges the tooth piece, second gear (9) and below one row of tooth piece intertooth meshing, and the upper end of one side of keeping away from each other of two rotary drums (7) is fixed with backup pad (2), and the one side that is close to each other of the upper end of two backup pad (2) all has first gear (5) through the pivot rotation, first gear (5) and the meshing of the last one row of tooth piece intertooth, a main rotating roller (4) is fixed between the two first gears (5), a film receiving roller (3) is rotated in the side face of the main rotating roller (4) through a rotating shaft, and the film receiving rollers (3) are arranged on the side face of the main rotating roller (4) in a circular array mode.

2. The film conveying and tensioning mechanism for a film printing machine according to claim 1, characterized in that: the pressure regulating device also comprises a protective blocking frame (1) which is fixed at the rear side of the supporting frame (10) and is arranged corresponding to the pressure regulating seat (14) up and down.

3. The film conveying and tensioning mechanism for a film printing machine according to claim 1, characterized in that: the device also comprises a weight increasing block (17) which is movably arranged in the pressure regulating seat (14) and is arranged in the pressure regulating seat (14) in a linear array.

4. The film conveying and tensioning mechanism for a film printing machine according to claim 1, characterized in that: the device also comprises two fixed seats (13) which are respectively fixed at the front side and the rear side of the lower end of the support frame (10).

5. The film conveying and tensioning mechanism for a film printing machine according to claim 1, characterized in that: the device is characterized by further comprising two limiting frames (15) and two inner inserting rods (16), wherein one ends, close to each other, of the two limiting frames (15) movably penetrate through the left end and the right end of the supporting frame (10), the inner inserting rods (16) are fixed to the other ends of the limiting frames (15), and one ends, close to each other, of the two inner inserting rods (16) movably penetrate through one sides, far away from each other, of the two rotary drums (7).