CN208005751U - A kind of paper cutter - Google Patents

Abstract

The utility model belongs to the technical field of cutting appliances, and specifically discloses a paper cutting device, which includes a body, a cutter and a power mechanism. The power mechanism includes a motor, a turntable, a connecting rod hinged at Slide bar, the slide bar is slidably connected in the body along the vertical direction, the cutter is fixed with the lower end of the slide bar, the output shaft of the motor is provided with the first transmission for driving the turntable to rotate, and also includes a paper conveying mechanism and a paper conveying mechanism that drives the Intermittent movement of the sheave mechanism. The paper conveying mechanism includes a conveyor belt and a driving wheel for driving the conveyor belt. The sheave mechanism includes a sheave and a dial that cooperate with each other. The sheave is fixedly connected to the pulley and is set concentrically with the pulley. The shaft is provided with a second transmission mechanism for driving the dial to rotate. The scheme can realize automatic and continuous cutting of paper and improve work efficiency.

Description

A paper cutting device

technical field

The utility model belongs to the technical field of cutting appliances, in particular to a paper cutting device.

Background technique

Paper processing mainly includes raw material crushing, pulp washing, cooking, bleaching, papermaking, and cutting. Among them, cutting is the last process of processing. Printing, packaging, book binding and other productions from material cutting to printed finished products and cutting of bound rough books all require paper cutters to cut, so paper cutters are important equipment for post-press processing. Sheet paper cutters are widely used in printing factories, bookbinding factories, packaging factories, paper product processing factories, etc. The current paper cutting process is generally to manually place a stack of paper on the cutting board under the cutter and then cut it. However, this kind of paper cutter cannot cut the paper continuously, and the staff needs to take out and put in the paper every time. , resulting in too low work efficiency; and every time it needs to be operated below, it has caused certain safety hazards to the staff.

Utility model content

The purpose of the utility model is to provide a paper cutting device capable of automatically and continuously cutting paper.

In order to achieve the above purpose, the basic solution of the utility model is: a paper cutting device, including a body, a cutter and a power mechanism, the power mechanism includes a motor, a turntable, a connecting rod hinged at the eccentric position of the turntable, and a connecting rod hinged at the end of the connecting rod The slide bar is slidably connected in the body along the vertical direction, the cutter is fixed on the lower end of the slide bar, and the output shaft of the motor is provided with a first transmission mechanism that drives the turntable to rotate, and also includes a paper conveying mechanism and a mechanism for driving the paper The transmission mechanism is a sheave mechanism that moves intermittently. The paper transmission mechanism includes a conveyor belt and a driving wheel that drives the conveyor belt. The sheave mechanism includes a sheave and a dial that cooperate with each other. The sheave is fixedly connected to the pulley and is set concentrically with the pulley. , A second transmission mechanism for driving the dial to rotate is provided on the output shaft of the motor.

The working principle and beneficial effects of this basic scheme are: firstly, several stacks of papers are placed equidistantly on the conveyor belt, at this time the cutter is just positioned on the conveyor belt and at the lowest point, and the dial is positioned at an angle where the sheave can be moved immediately. Then start the motor, because the output shaft of the motor is provided with the first transmission mechanism that drives the turntable to rotate, so the turntable can be driven to rotate by the first transmission mechanism after the motor starts. Because the eccentric position of the turntable is hinged with a connecting rod, and the end of the connecting rod is hinged with a slider, which is slid and connected in the body along the vertical direction, so the turntable, connecting rod and slider constitute a crank-slider mechanism, so the turntable rotates Finally, the slide bar will be driven to slide back and forth in the vertical direction, and the cutter is fixedly connected to the lower end of the slide bar, so the cutter will move up and down along with the slide bar. And because the cutting knife is at the lowest point at this moment, the cutting knife can move upwards after the motor starts.

While the cutting is moving upwards, since the output shaft of the motor is fixedly connected with a dial, the dial is at an angle where the sheave can be moved immediately, so when the motor starts, it will drive the dial to rotate, and the dial will drive the sheave to rotate , and the grooved wheel is fixedly connected with the driving wheel, so the rotating of the grooved wheel will drive the driving wheel to rotate, so that the conveyor belt drives the paper to move below the cutter. After the output shaft of the motor rotates 180 degrees, the paper is already under the cutter, and the cutter is at the highest point. Then the slide bar starts to drive the cutter to move downwards, while the grooved wheel does not move, so the cutter moves downwards to cut the paper. After the paper is cut, the cutter moves upwards, and the grooved wheel drives the conveyor belt to convey, so that the cut paper is conveyed outward, and the paper to be cut is conveyed to the bottom of the cutter.

In this solution, by setting the crank-sliding bar mechanism, the fast and repeated lifting motion of the cutting knife can be realized, the cutting speed is fast, and the working efficiency is improved. At the same time, by setting the sheave mechanism, the motor drives the cutter up and down, and at the same time drives the conveyor belt for intermittent transmission to realize the intermittent transmission of the paper, so that the automatic and continuous cutting of the paper can be realized, ensuring the smooth operation of the device and improving work efficiency. . Moreover, there is no need for staff to operate under the cutter, which improves safety.

Further, both the first transmission mechanism and the second transmission mechanism are belt transmission pairs. Simple structure, high cost performance and easy maintenance.

Further, it also includes a paper pressing mechanism, the paper pressing mechanism includes several elastic telescopic rods fixedly connected to the sliding rod, and the elastic telescopic rods are slidably connected to the lower end of the machine body along the vertical direction. Pressing the paper through the elastic telescopic rod can improve the cutting accuracy and ensure the smoothness of the paper cut.

Further, several cutting boards for placing paper are movably connected on the conveyor belt. It can prevent the cutter from causing damage to the conveyor belt, and at the same time, the conveyor belt can be placed at equal intervals to ensure the continuous cutting of paper.

Further, a slide slot is opened on the end surface of the turntable, and the connecting rod is movably connected in the slide slot. With such arrangement, the lifting stroke of the cutting knife can be changed, so as to adapt to cutting boards of different thicknesses.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of a paper cutting device of the present invention;

Fig. 2 is a structural schematic diagram of the sheave mechanism.

Detailed ways

The utility model is described in further detail below by means of specific embodiments:

Explanation of reference signs: body 1, turntable 2, rotating shaft 3, pin shaft 4, connecting rod 5, sliding rod 6, slip ring 7, support rod 8, fixed rod 9, movable rod 10, cutter 11, conveyor belt 12, motor 13, transmission lever 14, dial 15, sheave 16, driving wheel 17.

As shown in Fig. 1 and Fig. 2, a paper cutting device includes a machine body 1, a cutter 11, a power mechanism, a sheave 16 mechanism and a paper conveying mechanism. The machine body 1 is a box with an accommodating cavity inside. The power mechanism includes a motor 13, a turntable 2, a connecting rod 5 and a slide bar 6. The motor 13 is fixedly connected to the bottom wall of the body 1 , and the output shaft of the motor 13 is rotatably connected to the side wall of the body 1 and extends out of the body 1 . The quantity of described turntable 2 is two and is positioned at the upper part in body 1, and two turntables 2 close sides all are provided with chute, and pin shaft 4 is slidably connected between two chute, and the two ends of pin shaft 4 are respectively With lock nut. The centers of the end faces of the two turntables 2 away from the pin shaft 4 are fixedly connected with a rotating shaft 3 , and the two rotating shafts 3 are coaxially arranged and respectively rotatably connected to the side wall of the body 1 . The rotating shaft 3 on the right extends to the outside of the body 1 through the side wall of the body 1, the first pulley is fixedly connected to the rotating shaft 3 on the right, and the first pulley is located outside the body 1, and the output shaft of the motor 13 is fixedly connected to a first belt pulley. There is a pulley, and a belt is connected between the two first pulleys.

The upper end of the connecting rod 5 is rotatably connected to the pin shaft 4 , the upper end of the sliding rod 6 is rotatably connected to the lower end of the connecting rod 5 , and the cutter 11 is fixedly connected to the lower end of the sliding rod 6 . The body 1 is fixedly connected with a vertically arranged slip ring 7, and the slip ring 7 is provided with a slide hole for the slide bar 6 to slide. Lift and slide. The slide bar 6 is fixedly connected with a horizontal support rod 8, and the two ends of the support rod 8 are respectively fixedly connected with a horizontal support rod, and the support rod and the support rod 8 are perpendicular to each other. The elastic telescopic rod that is provided, the distance between the lower end of the elastic telescopic rod and the conveyor belt 12 is slightly greater than the distance between the cutter 11 and the conveyor belt 12. The elastic telescopic rod comprises a fixed rod 9 that is slidably connected on the bottom wall of the body 1, and a movable rod 10 is slidably connected in the fixed rod 9, and the movable rod 10 is positioned at the bottom of the body 1 and is distributed on the front and rear sides of the cutter 11. A spring is provided between the rods 9 .

The paper delivery mechanism includes a conveyor belt 12 located below the cutter 11 and a driving wheel 17 for driving the conveyor belt 12, and several cutting boards for placing paper are movably connected to the conveyor belt 12. The sheave 16 mechanism includes a sheave 16 and a dial 15 that cooperate with each other. The right side wall of the body 1 is provided with a supporting wall extending downwards, the supporting wall is rotatably connected with a transmission shaft, and the transmission shaft and the output shaft of the motor 13 are connected by a belt transmission pair. The dial 15 is fixedly connected to the transmission shaft, and the sheave 16 is fixedly connected to the driving wheel 17 .

During use, some stacks of papers are placed on the cutting board on the conveyor belt 12 earlier, and now the cutter 11 is just positioned on the conveyor belt 12 and is at the lowest point, and the dial 15 is positioned at an angle that can stir the sheave 16 immediately. Then start the motor 13, and the motor 13 drives the two rotating disks 2 to rotate through the first transmission mechanism, so that the rotating disk 2 drives the slide bar 6 and the cutter 11 to move upwards by the connecting rod 5. Simultaneously motor 13 drives dial 15 to rotate by second transmission mechanism, and dial 15 drives sheave 16 to rotate, and sheave 16 drives drive wheel 17 to rotate, thereby drive wheel 17 drives paper to the direction motion of cutter 11 by conveyor belt 12. After the output shaft of the motor 13 rotates 180 degrees, the paper is positioned under the cutter 11, and the cutter 11 is at the highest point. The output shaft of motor 13 continues to rotate, and then slide bar 6 begins to drive cutter 11 to move downwards, and now sheave 16 can not move. When the slide rod 6 moves downward, it will drive the elastic telescopic rod to move downward. When the movable rod 10 touches the paper, the slide rod 6 will continue to drive the fixed rod 9 to move downward, so that the gap between the fixed rod 9 and the movable rod 10 will be adjusted. The spring is compressed, so that the movable rod 10 compresses the paper. The cutter 11 moves downward to cut the paper. After the paper is cut, the cutter 11 moves upwards, and the sheave 16 drives the conveyer belt 12 to convey, so that the cut paper is conveyed outward, and the paper to be cut is conveyed below the cutter 11 .

What is described above is only the embodiment of the utility model, and common knowledge such as the specific structure and characteristic known in the scheme is not described too much here. It should be pointed out that for those skilled in the art, under the premise of not departing from the structure of the utility model, some deformations and improvements can also be made, and these should also be regarded as the protection scope of the utility model, and these will not affect the utility model. Effects of novel implementations and utility of patents. The scope of protection required by this application shall be based on the content of the claims, and the specific implementation methods and other records in the specification may be used to interpret the content of the claims.

Claims (5)

1. A paper cutting device, comprising a body, a cutter and a power mechanism, the power mechanism including a motor, a turntable, a connecting rod hinged at the eccentric position of the turntable and a slide bar hinged at the end of the connecting rod, the slide bar slides vertically Connected in the body, the cutter is fixed on the lower end of the slide bar, and the output shaft of the motor is provided with a first transmission mechanism that drives the turntable to rotate, and is characterized in that it also includes a paper transmission mechanism and a sheave that drives the intermittent motion of the paper transmission mechanism Mechanism, the paper transmission mechanism includes a conveyor belt and a driving wheel for driving the conveyor belt. The sheave mechanism includes a sheave and a dial that cooperate with each other. The sheave is fixedly connected to the pulley and is set concentrically with the pulley. The second transmission mechanism that drives the dial to rotate. 2. The paper cutting device according to claim 1, characterized in that: the first transmission mechanism and the second transmission mechanism are belt transmission pairs. 3. The paper cutting device according to claim 1, characterized in that: it also includes a paper pressing mechanism, the paper pressing mechanism includes several elastic telescopic rods fixedly connected to the slide bar, and the elastic telescopic rods are slidably connected in the vertical direction The lower end of the body. 4. The paper cutting device according to claim 3, wherein a plurality of cutting boards for placing paper are movably connected to the conveyor belt. 5 . The paper cutting device according to claim 4 , wherein a chute is provided on the end surface of the turntable, and the connecting rod is movably connected in the chute. 6 .