CN214692344U

CN214692344U - Unreeling traction device of film cutting machine

Info

Publication number: CN214692344U
Application number: CN202120255553.7U
Authority: CN
Inventors: 孟欣欣; 侯卫宾
Original assignee: Kunshan Yuqian Electronic Technology Co ltd
Current assignee: Kunshan Yuqian Electronic Technology Co ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-11-12
Anticipated expiration: 2031-01-29

Abstract

The utility model discloses a film cutting machine unreels draw gear, the on-line screen storage device comprises a base, top one side of base is equipped with two mounting panels, and the mounting panel that lies in the rear side in two mounting panels is fixed at the top of base, and the mounting panel slidable mounting that lies in the front side is at the top of base, and the rear side that lies in the mounting panel of front side inlays and is equipped with first cross axle, and the front side that lies in the mounting panel of rear side inlays and is equipped with the second cross axle, and the rear end of first cross axle clamps with the front end of second cross axle, and equal movable sleeve is equipped with the unreeling roller on first cross axle and the second cross axle, and the top fixedly connected with U-shaped mounting panel of base. The utility model relates to a rationally, can realize unreeling and pull the operation, and be convenient for adjust the distance between two anti-skidding carry over pinch rolls according to the thickness of coiled material, reach and to stably unreel the coiled material of different thickness and pull, improve application scope, satisfy the user demand.

Description

Unreeling traction device of film cutting machine

Technical Field

The utility model relates to an unreel the haulage equipment technical field, especially relate to a film cutting machine unreel draw gear.

Background

The traditional unreeling traction device mostly adopts two antiskid traction rollers to adhere the coiled materials to rotate, so that unreeling traction on the coiled materials is realized; it has the shortcoming that is not convenient for adjust the distance between two anti-skidding carry over pinch rolls according to the thickness of coiled material that current unreels draw gear, and then causes its application scope to limit, and when pulling to thinner coiled material, then can not be fine with two anti-skidding roller laminating, cause and pull the poor stability, can not satisfy the user demand, therefore we have proposed a film cutting machine unreel draw gear and be used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an unreeling traction device of a film cutting machine.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an unreeling traction device of a film cutting and slicing machine comprises a base, wherein two mounting plates are arranged on one side of the top of the base, one of the two mounting plates which is positioned on the rear side is fixed on the top of the base, the mounting plate which is positioned on the front side is slidably mounted on the top of the base, a first transverse shaft is embedded on the rear side of the mounting plate which is positioned on the front side, a second transverse shaft is embedded on the front side of the mounting plate which is positioned on the rear side, the rear end of the first transverse shaft is clamped with the front end of the second transverse shaft, unreeling rollers are movably sleeved on the first transverse shaft and the second transverse shaft, the top of the base is fixedly connected with a U-shaped mounting plate, two U-shaped rotating seats are arranged in the U-shaped mounting plate, the two U-shaped rotating seats are symmetrically arranged, the U-shaped rotating seat positioned below the two U-shaped rotating seats are fixedly mounted on the inner wall of the bottom of the U-shaped mounting plate, and the movable plate is fixedly connected with the top of the U-shaped rotating seat positioned above, a round shaft is rotatably arranged between the inner wall of the front side and the inner wall of the rear side of the U-shaped rotating seat, an anti-skid traction roller is fixedly sleeved on the round shaft, the front end of the round shaft extends to the front side of the corresponding U-shaped rotating seat, a first bevel gear positioned at the front side of the corresponding U-shaped rotating seat is fixedly sleeved on the round shaft, a second bevel gear is meshed at the front side of the first bevel gear, the two second bevel gears are symmetrically arranged, a first rectangular rod is fixedly connected at the bottom of the second bevel gear positioned above the two second bevel gears, a second rectangular rod is fixedly connected at the top of the second bevel gear positioned below the two bevel gears, the second rectangular rod is slidably sleeved on the first rectangular rod, the second rectangular rod is rotatably arranged at the front side of the U-shaped rotating seat positioned below the two bevel gears, the first rectangular rod is rotatably arranged at the front side of the U-shaped rotating seat positioned above the two bevel gears, and a driving motor is embedded on the inner wall of the bottom of the U-shaped mounting plate, the output shaft of driving motor and the bottom fixed connection of the second bevel gear who is located the below, it is equipped with two rectangle sleeves to inlay on the top inner wall of U-shaped mounting panel, the equal fixedly connected with locating lever in top both sides of movable plate, rectangle sleeve sliding sleeve establishes on the locating lever that corresponds, the top fixedly connected with internal thread sleeve of movable plate, internal thread sleeve is located between two rectangle sleeves, internal thread sheathed tube top extends to the top of U-shaped mounting panel, rotate between two rectangle sleeves and install same bull stick, the bottom of bull stick extends to the internal thread sleeve intraductally and fixedly connected with thread piece, thread piece thread bush is established at the internal thread sleeve intraductally, the top fixedly connected with knob of bull stick.

Preferably, the same cross rod is fixedly connected between the two rectangular sleeves, a first circular hole is formed in the top of the cross rod, a first bearing is fixedly sleeved in the first circular hole, and the inner ring of the first bearing is fixedly welded with the outer side of the rotating rod.

Preferably, two rectangular sleeves are provided with a limiting hole on the inner wall of the right side of the left rectangular sleeve, a limiting block is fixedly connected to the right side of the left positioning rod, and the limiting block is connected with the limiting hole in a sliding mode.

Preferably, a second circular hole is formed in each of the front inner wall and the rear inner wall of the U-shaped rotating seat, a second bearing is fixedly sleeved in each second circular hole, and the inner side of the inner ring of each second bearing is fixedly connected with the outer side of the corresponding circular shaft.

Preferably, the bottom fixedly connected with slider of the mounting panel that is located the front side, the spout that the front side set up for the opening is seted up to top one side of base, the outside of slider and the inner wall movable contact of spout have seted up the thread groove on the rear side inner wall of spout, and thread groove internal thread cover is equipped with T shape fastening bolt, and the front side of slider is opened and is equipped with the screw hole, T shape fastening bolt and screw hole threaded connection.

Preferably, the rear end of the first cross shaft is fixedly connected with a clamping block, the front end of the second cross shaft is provided with a clamping groove, and the outer side of the clamping block is in movable contact with the inner wall of the corresponding clamping groove.

Preferably, a through hole and two rectangular holes are formed in the inner wall of the top of the U-shaped mounting plate, the inner wall of the through hole is in sliding connection with the outer side of the internal thread sleeve, and the inner wall of each rectangular hole is fixedly connected with the outer side of the corresponding rectangular sleeve.

Preferably, the front side of the U-shaped rotating seat located above is fixedly connected with a third bearing, the inner side of an inner ring of the third bearing is welded and fixed with the outer side of the first rectangular rod, the front side of the U-shaped rotating seat located below is fixedly connected with a fourth bearing, the inner side of an inner ring of the fourth bearing is welded and fixed with the outer side of the second rectangular rod, the top end of the second rectangular rod is provided with a rectangular groove, and the inner wall of the rectangular groove is in sliding connection with the outer side of the first rectangular rod.

Compared with the prior art, the beneficial effects of the utility model are that:

the coil material rolling device comprises a base, a first cross shaft, a unreeling roller, a second cross shaft, a mounting plate, a T-shaped fastening bolt, a U-shaped mounting plate, a U-shaped rotating seat, anti-skidding traction rollers, a round shaft, a first bevel gear, a second bevel gear, a first rectangular rod, a second rectangular rod, a driving motor, a movable plate, a rectangular sleeve, positioning rods, an internal thread sleeve, a thread block, a rotating rod and a cross rod, wherein one end of the coil material is arranged between the two anti-skidding traction rollers, when the thickness of the coil material needs to be adjusted, the rotating rod is driven by a forward rotating knob to rotate, the rotating rod drives the thread block to rotate, the thread block rotates and drives the internal thread sleeve to move downwards, the internal thread sleeve drives the two positioning rods to respectively slide downwards in the corresponding rectangular sleeve through the movable plate, the movable plate drives the anti-skidding traction rollers above through the U-shaped rotating seat above to downwards extrude the coil material, so that the top and the bottom of the coil material are respectively tightly attached to one side, which is close to the two traction rollers, the adjustment is completed, when the unreeling traction operation is carried out, the driving motor is started to drive the second bevel gear located below to rotate, the second bevel gear located below sequentially passes through the second rectangular rod and the first rectangular rod to drive the second bevel gear located above to rotate, the two second bevel gears drive the two first bevel gears to rotate in opposite directions, the first bevel gears drive the two anti-skidding traction rollers to rotate in opposite directions through the two circular shafts, the coiled material is rubbed to move rightwards while the two anti-skidding traction rollers rotate, under the action of the coiled material pulling force, the coiled material is driven to clockwise rotate by the two anti-skidding traction rollers and is released, and the unreeling traction operation is realized.

The utility model relates to a rationally, can realize unreeling and pull the operation, and be convenient for adjust the distance between two anti-skidding carry over pinch rolls according to the thickness of coiled material, reach and to stably unreel the coiled material of different thickness and pull, improve application scope, satisfy the user demand.

Drawings

Fig. 1 is a schematic cross-sectional structural view of an unwinding traction device of a film cutting and slicing machine provided by the present invention;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

fig. 3 is the utility model provides a film cutting machine unreels draw gear's base, mounting panel, first cross axle, second cross axle, unreel roller, fixture block, slider and T shape fastening bolt connecting piece left side and sees the sectional structure schematic diagram.

In the figure: 100 bases, 101 first transverse shafts, 102 unreeling rollers, 103 second transverse shafts, 104 mounting plates, 1T-shaped fastening bolts, 2U-shaped mounting plates, 3U-shaped rotating seats, 4 anti-skidding traction rollers, 5 circular shafts, 6 first bevel gears, 7 second bevel gears, 8 first rectangular rods, 9 second rectangular rods, 10 driving motors, 11 moving plates, 12 rectangular sleeves, 13 positioning rods, 14 internal thread sleeves, 15 thread blocks, 16 rotating rods and 17 transverse rods.

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.

Referring to fig. 1-3, an unreeling traction device of a film cutting and slitting machine comprises a base 100, two mounting plates 104 are arranged on one side of the top of the base 100, one mounting plate 104 positioned on the rear side of the two mounting plates 104 is fixed on the top of the base 100, the mounting plate 104 positioned on the front side is slidably mounted on the top of the base 100, a first transverse shaft 101 is embedded on the rear side of the mounting plate 104 positioned on the front side, a second transverse shaft 103 is embedded on the front side of the mounting plate 104 positioned on the rear side, the rear end of the first transverse shaft 101 is clamped with the front end of the second transverse shaft 103, unreeling rollers 102 are movably sleeved on the first transverse shaft 101 and the second transverse shaft 103, a U-shaped mounting plate 2 is fixedly connected to the top of the base 100, two U-shaped rotating seats 3 are arranged in the U-shaped mounting plate 2, the two U-shaped rotating seats 3 are symmetrically arranged, the U-shaped rotating seat 3 positioned below the two U-shaped rotating seats 3 are fixedly mounted on the inner wall of the bottom of the U-shaped mounting plate 2, a moving plate 11 is fixedly connected to the top of the U-shaped rotating seat 3 positioned above, a round shaft 5 is rotatably installed between the front inner wall and the rear inner wall of the U-shaped rotating seat 3, an anti-skid traction roller 4 is fixedly sleeved on the round shaft 5, the front end of the round shaft 5 extends to the front side of the corresponding U-shaped rotating seat 3, a first bevel gear 6 positioned at the front side of the corresponding U-shaped rotating seat 3 is fixedly sleeved on the round shaft 5, a second bevel gear 7 is meshed with the front side of the first bevel gear 6, the two second bevel gears 7 are symmetrically arranged, a first rectangular rod 8 is fixedly connected to the bottom of the second bevel gear 7 positioned above the two second bevel gears 7, a second rectangular rod 9 is fixedly connected to the top of the second bevel gear 7 positioned below, the second rectangular rod 9 is slidably sleeved on the first rectangular rod 8, the second rectangular rod 9 is rotatably installed at the front side of the U-shaped rotating seat 3 positioned below, the first rectangular rod 8 is rotatably arranged at the front side of the U-shaped rotating seat 3 positioned above, a driving motor 10 is embedded on the inner wall of the bottom of the U-shaped mounting plate 2, the output shaft of the driving motor 10 is fixedly connected with the bottom of the second bevel gear 7 positioned below, two rectangular sleeves 12 are embedded on the inner wall of the top of the U-shaped mounting plate 2, positioning rods 13 are fixedly connected with both sides of the top of the moving plate 11, the rectangular sleeves 12 are slidably sleeved on the corresponding positioning rods 13, an internal thread sleeve 14 is fixedly connected with the top of the moving plate 11, the internal thread sleeve 14 is positioned between the two rectangular sleeves 12, the top end of the internal thread sleeve 14 extends to the upper side of the U-shaped mounting plate 2, the same rotating rod 16 is rotatably arranged between the two rectangular sleeves 12, the bottom end of the rotating rod 16 extends into the internal thread sleeve 14 and is fixedly connected with a thread block 15, the thread block 15 is sleeved in the internal thread sleeve 14, the top fixedly connected with knob of bull stick 16, the utility model relates to a rationally, can realize unreeling and pull the operation, and be convenient for adjust the distance between two anti-skidding carry over pinch rolls 4 according to the thickness of coiled material, reach and to stably unreel the traction to the coiled material of different thickness, improve application scope, satisfy the user demand.

In the utility model, the same cross bar 17 is fixedly connected between two rectangular sleeves 12, a first circular hole is arranged on the top of the cross bar 17, a first bearing is fixedly sleeved in the first circular hole, the inner side of the inner ring of the first bearing is welded and fixed with the outer side of the rotating rod 16, a limiting hole is arranged on the inner wall of the right side of the rectangular sleeve 12 positioned on the left side in the two rectangular sleeves 12, a limiting block is fixedly connected on the right side of the positioning rod 13 positioned on the left side, the limiting block is connected with the limiting hole in a sliding way, a second circular hole is arranged on the inner wall of the front side and the inner wall of the rear side of the U-shaped rotating seat 3, a second bearing is fixedly sleeved in the second circular hole, the inner side of the inner ring of the second bearing is fixedly connected with the outer side of the corresponding circular shaft 5, a slider is fixedly connected with the bottom of the mounting plate 104 positioned on the front side, a sliding groove with which the front side is arranged as an opening is arranged on one side of the top of the base 100, the outer side of the slider is in movable contact with the inner wall of the sliding groove, a thread groove is formed on the inner wall of the rear side of the sliding groove, a T-shaped fastening bolt 1 is sleeved in the thread groove, a threaded hole is formed in the front side of the sliding block, the T-shaped fastening bolt 1 is in threaded connection with the threaded hole, a clamping block is fixedly connected to the rear end of a first transverse shaft 101, a clamping groove is formed in the front end of a second transverse shaft 103, the outer side of the clamping block is in movable contact with the inner wall of the corresponding clamping groove, a through hole and two rectangular holes are formed in the inner wall of the top of a U-shaped mounting plate 2, the inner wall of the through hole is in sliding connection with the outer side of an internal thread sleeve 14, the inner wall of the rectangular hole is fixedly connected with the outer side of a corresponding rectangular sleeve 12, a third bearing is fixedly connected to the front side of an upper U-shaped rotating seat 3, the inner side of the third bearing is fixedly welded to the outer side of a first rectangular rod 8, a fourth bearing is fixedly connected to the front side of a lower U-shaped rotating seat 3, the inner side of the fourth bearing is fixedly welded to the outer side of a second rectangular rod 9, the rectangular channel has been seted up on the top of second rectangle pole 9, the inner wall of rectangular channel and first rectangle pole 8's outside sliding connection, the utility model relates to a rationally, can realize unreeling and pull the operation, and be convenient for adjust the distance between two anti-skidding carry over pinch rolls 4 according to the thickness of coiled material, reach and to stabilize to unreel to the coiled material of different thickness and pull, improve application scope, satisfy the user demand.

The working principle is as follows: when the coil winding device is used, a coil to be sliced is wound on the unwinding roller 102, one end of the coil is placed between the two anti-skidding traction rollers 4, when the distance between the two anti-skidding traction rollers 4 needs to be adjusted according to the thickness of the coil, the knob is rotated in the forward direction, the knob drives the rotating rod 16 to rotate, the rotating rod 16 drives the thread block 15 to rotate, the thread block 15 rotates in the internal thread sleeve 14 and drives the internal thread sleeve 14 to move downwards, the internal thread sleeve 14 drives the movable plate 11 to move downwards, the movable plate 11 drives the two positioning rods 13 to respectively slide downwards in the corresponding rectangular sleeves 12, the movable plate 11 drives the U-shaped rotating seat 3 positioned above to move downwards, the U-shaped rotating seat 3 positioned above drives the circular shaft 5 positioned above to move downwards through the corresponding second bearings, the circular shaft 5 positioned above drives the anti-skidding traction rollers 4 positioned above to move downwards, meanwhile, the rotating seat 3 positioned above drives the first rectangular rod 8 to slide downwards in the rectangular groove formed in the second rectangular rod 9 through the third bearing, and the anti-skid traction roller 4 positioned above downwards moves and simultaneously extrudes the coiled material, so that the top and the bottom of the coiled material are respectively tightly attached to one side, close to each other, of the two anti-skid traction rollers 4, the distance between the two anti-skid traction rollers 4 is adjusted, the traction roller is suitable for traction with different thicknesses, and the application range is improved;

when unreeling traction operation is carried out, a driving motor 10 is started, an output shaft of the driving motor 10 drives a second bevel gear 7 positioned below to rotate, the second bevel gear 7 positioned below drives a second rectangular rod 9 to rotate, the second rectangular rod 9 drives a first rectangular rod 8 to rotate through a rectangular groove, the first rectangular rod 8 drives a second bevel gear 7 positioned above to rotate, the two second bevel gears 7 are symmetrically arranged, so that the two second bevel gears 7 drive the two first bevel gears 6 to rotate in opposite directions, the first bevel gears 6 drive corresponding circular shafts 5 to rotate, the two circular shafts 5 drive the two anti-skidding traction rollers 4 to rotate in opposite directions, the two anti-skidding traction rollers 4 rub the coiled material to move rightwards while rotating, and simultaneously, under the action of pulling force of the coiled material, the coiled material drives the unreeling roller 102 to rotate clockwise and release the coiled material, thereby realizing the unreeling traction operation;

when the coil on the unwinding roller 102 is used up and needs to be replaced, the T-shaped fastening bolt 1 is rotated in the forward direction to be separated from the threaded groove, so that the fixing of the mounting plate 104 on the front side is released, the mounting plate 104 on the front side is then moved forward, the mounting plate 104 on the front side drives the slider to move out of the threaded groove, the mounting plate 104 on the front side drives the first transverse shaft 101 to move forward to be separated from the second transverse shaft 103, the first transverse shaft 101 drives the fixture to be separated from the slot, the shielding of the unwinding roller 102 is released, at this time, the unwinding roller 102 is taken down, a new unwinding roller 102 is sleeved on the second transverse shaft 103, the mounting plate 104 on the front side is moved backward, the mounting plate 104 on the front side drives the first transverse shaft 101 to move backward, the first transverse shaft 101 drives the fixture to move into the slot, the mounting plate 104 drives the slider to move into the slot, and then the T-shaped fastening bolt 1 is rotated reversely, so that the mounting plate 104 is fixed and the replacement of the unwinding roller 102 is completed.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a film cutting and slicing machine's unreel draw gear, including base (100), top one side of base (100) is equipped with two mounting panels (104), a serial communication port, the mounting panel (104) that is located the rear side among two mounting panels (104) is fixed at the top of base (100), the mounting panel (104) that is located the front side is slidable mounting at the top of base (100), the rear side of the mounting panel (104) that is located the front side is inlayed and is equipped with first cross axle (101), the front side of the mounting panel (104) that is located the rear side is inlayed and is equipped with second cross axle (103), the rear end of first cross axle (101) clamps with the front end of second cross axle (103), all movable sleeves are equipped with unreeling roller (102) on first cross axle (101) and second cross axle (103), the top fixedly connected with U-shaped mounting panel (2) of base (100), be equipped with two U-shaped rotation seats (3) in the U-shaped mounting panel (2), the two U-shaped rotating seats (3) are symmetrically arranged, the U-shaped rotating seat (3) positioned at the lower part in the two U-shaped rotating seats (3) is fixedly arranged on the inner wall of the bottom of the U-shaped mounting plate (2), the top of the U-shaped rotating seat (3) positioned at the upper part is fixedly connected with a movable plate (11), a round shaft (5) is rotatably arranged between the inner wall of the front side and the inner wall of the rear side of the U-shaped rotating seat (3), an anti-skidding traction roller (4) is fixedly sleeved on the round shaft (5), the front end of the round shaft (5) extends to the front side of the corresponding U-shaped rotating seat (3), a first bevel gear (6) positioned at the front side of the corresponding U-shaped rotating seat (3) is fixedly sleeved on the round shaft (5), a second bevel gear (7) is meshed at the front side of the first bevel gear (6), the two second bevel gears (7) are symmetrically arranged, and a first rectangular rod (8) is fixedly connected at the bottom of the second bevel gear (7) positioned at the upper part in the two second bevel gears (7), the top of the second bevel gear (7) positioned below is fixedly connected with a second rectangular rod (9), the second rectangular rod (9) is slidably sleeved on the first rectangular rod (8), the second rectangular rod (9) is rotatably installed at the front side of the U-shaped rotating seat (3) positioned below, the first rectangular rod (8) is rotatably installed at the front side of the U-shaped rotating seat (3) positioned above, the inner wall of the bottom of the U-shaped mounting plate (2) is embedded with a driving motor (10), the output shaft of the driving motor (10) is fixedly connected with the bottom of the second bevel gear (7) positioned below, the inner wall of the top of the U-shaped mounting plate (2) is embedded with two rectangular sleeves (12), both sides of the top of the movable plate (11) are fixedly connected with positioning rods (13), the rectangular sleeves (12) are slidably sleeved on the corresponding positioning rods (13), the top of the movable plate (11) is fixedly connected with an internal thread sleeve (14), internal thread sleeve pipe (14) are located between two rectangle sleeve pipes (12), and the top of internal thread sleeve pipe (14) extends to the top of U-shaped mounting panel (2), rotates between two rectangle sleeve pipes (12) and installs same bull stick (16), and the bottom of bull stick (16) extends to in internal thread sleeve pipe (14) and fixedly connected with thread block (15), and thread block (15) thread bush is established in internal thread sleeve pipe (14), the top fixedly connected with knob of bull stick (16).

2. The unwinding traction device of the film cutting and slicing machine as claimed in claim 1, wherein a cross bar (17) is fixedly connected between the two rectangular sleeves (12), a first circular hole is formed in the top of the cross bar (17), a first bearing is fixedly sleeved in the first circular hole, and the inner side of an inner ring of the first bearing is welded and fixed with the outer side of the rotating rod (16).

3. The unwinding traction device of the film cutting and slicing machine as claimed in claim 1, wherein a limiting hole is formed in the inner wall of the right side of the rectangular sleeve (12) on the left side of the two rectangular sleeves (12), a limiting block is fixedly connected to the right side of the positioning rod (13) on the left side, and the limiting block is slidably connected with the limiting hole.

4. The unwinding traction device of the film cutting and slitting machine as claimed in claim 1, wherein the inner wall of the front side and the inner wall of the rear side of the U-shaped rotating base (3) are both provided with second circular holes, a second bearing is fixedly sleeved in each second circular hole, and the inner side of an inner ring of each second bearing is fixedly connected with the outer side of the corresponding circular shaft (5).

5. The unwinding traction device of the film cutting machine according to claim 1, wherein a sliding block is fixedly connected to the bottom of the mounting plate (104) on the front side, a sliding groove with an opening on the front side is formed in one side of the top of the base (100), the outer side of the sliding block is in movable contact with the inner wall of the sliding groove, a threaded groove is formed in the inner wall of the rear side of the sliding groove, a T-shaped fastening bolt (1) is sleeved in the threaded groove, a threaded hole is formed in the front side of the sliding block, and the T-shaped fastening bolt (1) is in threaded connection with the threaded hole.

6. The unwinding traction device of the film cutting and slitting machine as claimed in claim 1, wherein a clamping block is fixedly connected to a rear end of the first cross shaft (101), a clamping groove is formed at a front end of the second cross shaft (103), and an outer side of the clamping block is in movable contact with an inner wall of the corresponding clamping groove.

7. The unwinding traction device of the film cutting and slicing machine as claimed in claim 1, wherein the top inner wall of the U-shaped mounting plate (2) is provided with a through hole and two rectangular holes, the inner wall of the through hole is slidably connected with the outer side of the internal thread sleeve (14), and the inner wall of the rectangular hole is fixedly connected with the outer side of the corresponding rectangular sleeve (12).

8. The unwinding traction device of the film cutting and slitting machine as claimed in claim 1, wherein a third bearing is fixedly connected to the front side of the upper U-shaped rotating base (3), the inner side of the inner ring of the third bearing is welded and fixed to the outer side of the first rectangular rod (8), a fourth bearing is fixedly connected to the front side of the lower U-shaped rotating base (3), the inner side of the inner ring of the fourth bearing is welded and fixed to the outer side of the second rectangular rod (9), a rectangular groove is formed in the top end of the second rectangular rod (9), and the inner wall of the rectangular groove is slidably connected to the outer side of the first rectangular rod (8).