Thin film unwinding center clamp of splitting machine

Abstract

The utility model relates to a thin film unwinding center clamp of a splitting machine, which belongs to the technical field of thin film splitting and comprises a splitting machine wallboard, a linear guide rail, a first clamping piece, a second clamping piece, a driving mechanism and a gear. The linear guide rail and the gear are mounted on a wall plate of the splitting machine; the first clamping piece and the second clamping piece are slidably connected to the linear guide rail in parallel, a first rack is arranged on the first clamping piece, a second rack is arranged on the second clamping piece, and the first rack and the second rack are arranged in parallel; the gear is arranged between the first rack and the second rack and is in tooth connection with the first rack and the second rack; the driving mechanism is connected with the first clamping piece or the second clamping piece and used for driving the first clamping piece or the second clamping piece. According to the utility model, the unreeling stability and speed of the unreeling bearing can be improved, so that the film slitting quality and efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of film slitting, and particularly relates to a film unwinding center clamp of a slitting machine. BACKGROUND

[0002] The film slitting machine is composed of an unwinding mechanism, a cutting mechanism, a winding mechanism, various functional rollers and a detection device. Its working principle is as follows: the metallized film raw material discharged from the unwinding mechanism passes through the flattening roller, the tension detection roller, the energizing roller and the deviation rectifying system, and then enters the cutting mechanism. After being slit, the raw material is wound into film rolls meeting the standards by the winding mechanism. The meaning of slitting is to cut a large roll of film into several small rolls of equal width.

[0003] The structure of the existing film slitting machine is disclosed in the utility model patent with the authorization announcement No. CN207258870U, which comprises an unwinding device and a rack. The unwinding device comprises an unwinding shaft and an unwinding support. The two ends of the unwinding shaft are installed on the unwinding support. A flattening roller is installed below the front end of the rack. A guide roller is installed above the flattening roller. A pressure roller and a slitting assembly are arranged on the rack above the guide roller. The pressure roller is arranged in parallel above the slitting assembly. The slitting assembly can synchronously adjust the distance between the blades. The slitting assembly mainly comprises a cylinder, several blade clamps and a power source.

[0004] The above film slitting machine places the unwinding shaft on the unwinding support without limiting the center of the unwinding shaft. The speed during slitting should not be too fast because the unwinding shaft is prone to up-and-down shaking when rotating at a high speed, which leads to uneven slitting surface and uneven width of the film after slitting, thereby limiting the efficiency of film unwinding. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a film unwinding center clamp of a slitting machine to solve the problems of poor stability and low efficiency of the unwinding film of the existing film slitting machine.

[0006] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0007] The utility model relates to a film unwinding center clamp of a slitting machine, which comprises a slitting machine wall plate, a linear guide rail, a first clamping piece, a second clamping piece, a driving mechanism and a gear. The linear guide rail and the gear are installed on the slitting machine wall plate. The first clamping piece and the second clamping piece are slidably connected in parallel on the linear guide rail. A first rack is arranged on the first clamping piece, and a second rack is arranged on the second clamping piece. The first rack and the second rack are arranged in parallel. The gear is arranged between the first rack and the second rack and is toothedly connected with the first rack and the second rack. The driving mechanism is connected with the first clamping piece or the second clamping piece and is used for driving the first clamping piece or the second clamping piece.

[0008] Preferably, the opposite side of the first and second clamping pieces is provided with a circular arc surface.

[0009] Preferably, the straight line guide rail is vertically fixed to the side edge of the slitting machine wall plate, the first and second clamping pieces are arranged side by side in up and down directions, and the gear is mounted on the panel of the slitting machine wall plate.

[0010] Preferably, the driving mechanism is a pneumatic cylinder, an oil cylinder or a linear motor.

[0011] Compared with the prior art, the technical scheme has the following beneficial effects:

[0012] 1. The slitting machine film unwinding center clamp comprises a straight line guide rail, a first clamping piece, a second clamping piece, a driving mechanism and a gear, the first clamping piece and the second clamping piece are slidably connected in parallel on the straight line guide rail, the driving mechanism is connected with the first clamping piece or the second clamping piece and is used for driving the first clamping piece or the second clamping piece, the unwinding bearing is wrapped by the circular arc surface on the opposite side of the first clamping piece and the second clamping piece, and then the shaking in the rotating process of the unwinding bearing is limited, on this basis, the unwinding speed of the unwinding bearing can be accelerated, and then the efficiency of film slitting is improved.

[0013] 2. The slitting machine film unwinding center clamp comprises a first clamping piece, a second clamping piece, a driving mechanism and a gear, the first clamping piece is provided with a first rack, the second clamping piece is provided with a second rack, the first rack and the second rack are arranged in parallel, the gear is arranged between the first rack and the second rack and is in tooth connection with the first rack and the second rack, the driving mechanism is connected with the first clamping piece or the second clamping piece and is used for driving the first clamping piece or the second clamping piece, when the driving mechanism drives one of the clamping pieces, the corresponding rack is linked with the gear, the gear is linked with the rack of the other clamping piece, the first clamping piece and the second clamping piece are simultaneously moved towards the center, the stroke of the driving mechanism is reduced, the closing speed of the two clamping pieces is accelerated, and the clamping speed is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view of the slitting machine film unwinding center clamp.

[0015] Mark: 1-first clamping piece, 2-second clamping piece, 3-first rack, 4-gear, 5-second rack, 6-driving mechanism, 7-straight line guide rail, 8-aluminum pipe, 9-film, 10-slitting machine wall plate, 11-circular arc surface. DETAILED DESCRIPTION

[0016] In order to further understand the content of the utility model, the utility model is described in detail in combination with examples, and the following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0017] Referring to the drawings Figure 1 The utility model relates to a kind of film unwinding center clamps of slitting machine, including slitting machine wallboard 10, linear guide 7, first clamping piece 1, second clamping piece 2, driving mechanism 6 and gear 4.

[0018] The linear guide 7 and gear 4 are installed on the slitting machine wallboard 10, specifically the linear guide 7 is fixed on the left side of the slitting machine wallboard 10, and the gear 4 is installed on the panel of the slitting machine wallboard 10. The first clamping piece 1 and the second clamping piece 2 are arranged side by side, and then are slidably connected in parallel to the linear guide 7. The first clamping piece 1 is provided with a first rack 3 arranged vertically, and the second clamping piece 2 is provided with a second rack 5 arranged vertically. The first rack 3 and the second rack 5 are parallel. The gear 4 is arranged between the first rack 3 and the second rack 5 and is connected with the first rack 3 and the second rack 5. The opposite side of the first clamping piece 1 and the second clamping piece 2 is provided with a circular arc surface 11. The circular arc surfaces of the two clamping pieces form a circular cavity. The size of the circular cavity matches the aluminum pipe 8 of the unwinding film 9. The driving mechanism 6 is connected with the second clamping piece 2 and is used to drive the second clamping piece 2 to move up and down. The driving mechanism 6 is a pneumatic cylinder, an oil cylinder or a linear motor.

[0019] The use method of the above-mentioned film unwinding center clamp of slitting machine is as follows: the aluminum pipe 8 wound with the film 9 is placed on the circular arc surface 11 of the second clamping piece 2. The driving mechanism 6 is started to push the second clamping piece 2 upwards. At this time, the second rack 5 is linked with the gear 4. The gear 4 drives the first rack 5 to move downwards, and then the first clamping piece 1 moves downwards. The first clamping piece 1 and the second clamping piece 2 are close to each other. The circular arc surface 11 wraps the aluminum pipe. The clamping of the unwinding shaft is completed. The shaking of the unwinding shaft during unwinding can be effectively limited. On this basis, the unwinding speed can be accelerated to improve the efficiency of unwinding and film cutting.

[0020] The above-mentioned embodiments are described in detail. However, the above-mentioned embodiments are only preferred embodiments of the utility model, and cannot be considered as limiting the scope of the utility model. Any equivalent changes and improvements within the scope of the utility model shall still belong to the patent coverage of the utility model.

Claims

1. A film unwinding center clamp for a slitting machine, characterized in that: The utility model relates to a cutting machine wallboard, linear guide rail, first clamping piece, second clamping piece, driving mechanism and gear, the linear guide rail and gear are installed on the cutting machine wallboard, the first clamping piece and second clamping piece are slidably connected in parallel on the linear guide rail, first rack is equipped on the first clamping piece, second rack is equipped on the second clamping piece, and the first rack and second rack are arranged in parallel, the gear is arranged between the first rack and second rack and is toothed with the first rack and second rack, the driving mechanism is connected with the first clamping piece or second clamping piece and is used for driving the first clamping piece or second clamping piece.

2. The slitter film unwind center clamp of claim 1, wherein: The opposite side of the first clamping piece and the second clamping piece is provided with a circular arc surface.

3. The slitter film unwind center clamp of claim 1, wherein: The linear guide rail is vertically fixed to the side edge of the cutting machine wallboard, the first clamping piece and the second clamping piece are arranged side by side in up and down directions, and the gear is installed on the panel of the cutting machine wallboard.

4. The slitter film unwind center clamp of claim 1, wherein: The driving mechanism is a pneumatic cylinder, an oil cylinder or a linear motor.

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