CN213618950U

CN213618950U - Linear cutting device on printing machine

Info

Publication number: CN213618950U
Application number: CN202021481821.9U
Authority: CN
Inventors: 李红军; 刘东红; 贠吉磊
Original assignee: Shaanxi Outai Printing And Packaging Machinery Co ltd
Current assignee: Shaanxi Outai Printing And Packaging Machinery Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-07-06
Anticipated expiration: 2030-07-23

Abstract

The utility model provides a straight line cutting device on printing machine, including the wallboard, be provided with swing arm pivot fixing base on the wallboard, be provided with the swing arm pivot in the swing arm pivot fixing base, swing arm pivot both ends fixedly connected with swing arm, the front end of swing arm is provided with rodless cylinder between two swing arms, install the gliding sword that cuts of side to side on the cylinder on the rodless cylinder, the middle part of swing arm is provided with and cuts compression roller and pivot, the pivot is connected with through the connecting rod and fixes on the compression roller cylinder in the swing arm, the one end of swing arm pivot is fixed with the transmission pole, the transmission pole passes through the actuating lever with the swing arm cylinder of fixing on. The linear cutting device has good cutting performance, is stable and reliable during cutting, is smooth in cutting and cutting, does not drag the tail of the material, and improves the stability of automatic material receiving and changing.

Description

Linear cutting device on printing machine

Technical Field

The utility model belongs to the technical field of printing packaging machinery, specifically say so and relate to a sharp cutting device on printing machine.

Background

Most of the unreeling and reeling parts of the existing printing and packaging machinery are used for receiving and changing materials without stopping at double stations, so that the problem that old materials are cut off and new materials are changed is necessarily involved. Because the thickness of packaging materials such as OPP, PE, PVC and the like is different, the material properties (such as tensile property) are greatly different, and a single cutting knife structure cannot meet the cutting requirements of various materials. The existing cutters on printing machinery mostly adopt a sawtooth-shaped blade, the sawtooth-shaped blade is driven by a cylinder to vertically and downwards prick a row of dense small holes from the surface of a coiled material by means of downward impact force of the sawtooth-shaped blade, and the coiled material is pulled to be broken by means of the tensile force of a material film. Due to the fact that the material film properties are very different, for a film with good flexibility (such as PE) and a thick hard film (such as PVC with the thickness of more than 150 microns), the saw-tooth-shaped blade cannot cut off the old material well at all, or even if the old material is cut off, the old material is pulled off and trailing under the action of tension, so that an adhesive tape cannot be pasted, the automatic cutting process fails, the automatic material receiving and changing failure is further influenced, a printing material is drawn into printing equipment, and great material loss is caused.

Disclosure of Invention

In order to overcome the deficiencies in the prior art, the utility model provides a straight line cutting device on printing machine.

The utility model discloses a realize through following technical scheme: the utility model provides a straight line cutting device on printing machine, includes the wallboard, is provided with swing arm pivot fixing base on the wallboard, is provided with the swing arm pivot in the swing arm pivot fixing base, swing arm pivot both ends fixedly connected with swing arm, and the front end of swing arm is provided with rodless cylinder between two swing arms, install the gliding sword slide that cuts on the cylinder about on the rodless cylinder, be provided with on the sword slide that cuts and cut the sword, the middle part of swing arm is provided with cuts compression roller and pivot, and the both ends of pivot are fixed in the swing arm, cuts the compression roller and passes through the connecting rod and be connected with the pivot, and the pivot still is connected with the compression roller cylinder of fixing in the swing arm through the connecting rod on, the one end of swing arm pivot is.

In the scheme, the cutting knife is a square plate, the cutting edge is arranged at the lower part of the square plate and is sunken into the plate body from the edge of the square plate, the opening of the cutting edge is formed into a horn mouth, and the cross section of the cutting edge is obliquely intersected from two side faces to the center.

In the scheme, the connecting rod is an L-shaped corner connecting rod, the corner of the connecting rod is connected with the rotating shaft, and two ends of the connecting rod are respectively connected with the cutting press roller and the press roller cylinder.

In the scheme, the swing arm is further provided with a buffer for controlling the cutting knife sliding seat to stop.

The utility model relates to a sharp cutting device on printing machine compares with prior art, and its beneficial effect is:

1. the linear cutting device has good cutting performance, is stable and reliable during cutting, is smooth in cutting and cutting, does not drag the tail of the material, and improves the stability of automatic material receiving and changing.

Drawings

Fig. 1 is a schematic structural diagram of a linear cutting device of a printing machine according to the present invention.

Fig. 2 is a sectional view a-a in fig. 1.

Fig. 3 is an enlarged view of the piece 5 of fig. 2.

Fig. 4 is a sectional view B-B in fig. 3.

In the figure: 1. the cutting device comprises a used material roll, a material film, a new material roll, a front guide roller, a cutting knife, a rodless cylinder, a connecting rod, a photoelectric head, a rotating shaft, a pressing roller cylinder, a swinging arm fixing seat, a swinging arm rotating shaft, a transmission rod, a driving rod, a rear guide roller, a swinging arm fixing seat, a swinging arm rotating shaft, a transmission rod, a driving rod, a rear guide roller, a swinging arm cylinder, a wallboard, a buffer, a cutting.

Detailed Description

The following describes a linear cutting device of a printing machine according to the present invention with reference to the accompanying drawings:

fig. 1 is a schematic structural view of a linear cutting device of a printing press according to the present invention, fig. 2 is a sectional view taken along line a-a in fig. 1, fig. 3 is an enlarged view of a member 5 in fig. 2, and fig. 4 is a sectional view taken along line B-B in fig. 3. In the figure, this straight line cutting device on printing machine, including wallboard 19, be provided with swing arm pivot fixing base 13 on the wallboard 19, be provided with swing arm pivot 14 in the swing arm pivot fixing base 13, swing arm pivot 14 both ends fixedly connected with swing arm 12, the front end of swing arm 12 is provided with rodless cylinder 6 between two swing arms, install on the rodless cylinder 6 and cut sword slide 21 of horizontal slip on the cylinder, be provided with on the sword slide 21 and cut sword 5, still be provided with the buffer 20 that control cutting sword slide 21 stopped on the swing arm 12. The middle part of swing arm 12 is provided with cuts compression roller 7 and pivot 10, and the both ends of pivot 10 are fixed on swing arm 12, cuts compression roller 7 and is connected with pivot 10 through connecting rod 8, and pivot 10 still is connected with the compression roller cylinder 11 of fixing in the swing arm through the connecting rod, and connecting rod 8 is L shape turning connecting rod, and pivot 10 is connected to the corner of connecting rod, the one end of swing arm pivot 14 is fixed with transfer lever 15, and transfer lever 15 passes through actuating lever 16 with the swing arm cylinder 18 of fixing on the wallboard and articulates.

The cutting knife 5 is a square plate, a cutting edge 23 is arranged at the lower part of the square plate, the cutting edge 23 is sunken into the plate body from the edge of the square plate, a horn mouth 22 is arranged at the opening of the cutting edge, and the cross section of the cutting edge 23 is obliquely intersected from two side faces to the center.

Under the condition that the running linear speed of the machine is fixed, the rotating speed of the old material roll 1 is faster and faster, the material is placed more and less, the material receiving button on the control panel is pressed at the moment, the material frame rotates, the new material roll 3 rotates to the material receiving position, the material receiving position is located between the front guide roll 4 and the rear guide roll 17, and meanwhile, under the action of the electromagnetic valve, the swing arm cylinder 18 pushes the swing arm 12 to fall to the material receiving position through the driving rod 16 and the transmission rod 15 after 3 seconds of delay. Then, the new material roll 3 (the material head is stuck with the adhesive tape in advance) calculates the roll diameter under the control of the program and then inputs the program, the new material roll pre-driving process starts to rotate, and when the photoelectric head 9 detects that the linear speeds of the new material roll 3 and the old material roll 1 are the same, the pre-driving same-speed indicator lamp on the control panel is on. Indicating that the cutting condition is met, and continuing the constant-linear-speed rotation of the new material roll and the old material roll. When a 'cutting' button on a control panel is pressed, a cutting press roller 7 presses a material film 2 of an old material to a new material roll under the action of a press roller cylinder 11 and is bonded with a new material roll adhesive tape, at the moment, a rodless cylinder 6 drives a cutting knife 5 on a cutting knife sliding seat 21 to rapidly and transversely move from the left side to the right side at the moving speed of 10m/s, the cutting knife 5 cuts off the old material film 2, and the new material film is bonded and continuously runs. Thereafter, each cylinder is retracted and the swing arm 12 is raised to its home position. Meanwhile, the tension is automatically switched to a new material shaft, and the whole cutting action is finished.

The linear cutting device has good cutting performance, is stable and reliable during cutting, cuts broken materials flatly, does not drag the tail of the materials, improves the stability of automatically receiving and changing the materials, and greatly reduces the loss and waste of material films.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with reference to the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make various changes or modifications equivalent to the above embodiments without departing from the scope of the present invention, but all the modifications, changes and modifications of the above embodiments by the technical spirit of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a straight line cutting device on printing machine, includes the wallboard, its characterized in that: be provided with swing arm pivot fixing base on the wallboard, be provided with the swing arm pivot in the swing arm pivot fixing base, swing arm pivot both ends fixedly connected with swing arm, the front end of swing arm is provided with rodless cylinder between two swing arms, install the gliding sword slide that cuts on the cylinder, cut and be provided with on the sword slide and cut the sword, the middle part of swing arm is provided with and cuts compression roller and pivot, and the both ends of pivot are fixed in the swing arm, cut the compression roller and pass through the connecting rod and be connected with the pivot, and the pivot still is connected with the compression roller cylinder of fixing in the swing arm through the connecting rod, the one end of swing arm pivot is fixed with the transmission pole, and the transmission pole passes through the actuating.

2. The in-line cutoff device on a printing press as recited in claim 1 wherein: the cutting knife is a square plate, a cutting edge is arranged at the lower part of the square plate, the cutting edge is sunken into the plate body from the edge of the square plate, a horn mouth is formed at the opening of the cutting edge, and the cross section of the cutting edge is obliquely intersected from two side faces to the center.

3. The in-line cutoff device on a printing press as recited in claim 1 wherein: the connecting rod is an L-shaped corner connecting rod, the rotating shaft is connected at the corner of the connecting rod, and the two ends of the connecting rod are respectively connected with the cutting compression roller and the compression roller cylinder.

4. The in-line cutoff device on a printing press as recited in claim 1 wherein: and the swing arm is also provided with a buffer for controlling the cutting knife sliding seat to stop.