CN213137054U

CN213137054U - Die-cutting mechanism of printing machine

Info

Publication number: CN213137054U
Application number: CN202022091683.XU
Authority: CN
Inventors: 李明康; 郝小强
Original assignee: Nantai Precise Machinery & Tech Ltd Foshan
Current assignee: Nantai Precise Machinery & Tech Ltd Foshan
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-05-07
Anticipated expiration: 2030-09-22

Abstract

A die-cutting mechanism of a printing machine relates to the field of die-cutting instruments of the printing machine and comprises a rack, a driving roller and a cutter roller, wherein the driving roller and the cutter roller are arranged on the rack in a manner of being opposite to each other up and down; the cylinder pressing and locking mechanism comprises a driving cylinder and a cam; the driving cylinder is arranged on the inner side wall of the rack, and a telescopic rod of the driving cylinder extends downwards; the cam is eccentrically and rotatably arranged above the driving roller rotating seat; the cam is hinged with a telescopic rod of the driving cylinder. The utility model discloses in, when the cardboard passed between drive roll and the cutter roller, drive the cam through driving actuating cylinder and rotate downwards, make the cam offset and rotate the seat at the drive roll, produce decurrent stress to offset the cardboard and rotate the upward stress that the seat produced to the drive roll, make the drive roll rotate the seat atress balanced, ensure that the drive roll rotates steadily, ensure to offer out the trench on the cardboard, reduce cross cutting rejection rate.

Description

Die-cutting mechanism of printing machine

Technical Field

The utility model relates to a printing machine cross cutting apparatus field, especially a printing machine die cutting mechanism.

Background

In the carton trade, the die-cutting mechanism of current cardboard printing machine generally adopts the mode of roller cutting to carry out the fluting to the good cardboard of printing, presses the cardboard on the cutter roller through the compression roller to the trench is surely gone out in the pressure, can carry out the fluting technology in succession, and is efficient. However, in actual production, when the cardboard passed between compression roller and the cutter roller, the cardboard can produce ascending reaction force to the compression roller, and in the long term, the rotation seat of compression roller can take place deformation and the phenomenon such as unstable is beated or inclined at the course of the work to the compression roller appears, leads to the pressure to the cardboard not enough, is difficult to ensure to offer the trench on the cardboard, and the cross cutting rejection rate is high.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned defect, the utility model aims to provide a printing machine cross cutting mechanism.

To achieve the purpose, the utility model adopts the following technical proposal:

a die cutting mechanism of a printing machine comprises a rack, a driving roller and a cutter roller, wherein the driving roller and the cutter roller are arranged on the rack in a rotating manner in a manner of being opposite to each other up and down; the cylinder pressing and locking mechanism comprises a driving cylinder and a cam; the driving cylinder is arranged on the inner side wall of the rack, and a telescopic rod of the driving cylinder extends downwards; the cam is eccentrically and rotatably arranged above the driving roller rotating seat; the cam is hinged with a telescopic rod of the driving cylinder.

Further, the periphery of the driving roller is coated with a protective glue layer.

Further, a ball screw linear transmission mechanism and a cutting assembly are arranged at the top of the driving roller; the lead screw of the ball screw linear transmission mechanism is arranged in parallel along the axis direction of the driving roll; the cutting assembly is arranged on a screw nut of the ball screw linear transmission mechanism; the cutting assembly is used for scraping burrs on the surface of the protective glue layer.

Further, the cutting assembly comprises a cutting tool and a telescopic driving assembly; the telescopic end of the telescopic driving component extends out towards the driving roller; the cutting tool is disposed at the telescoping end of the telescoping drive assembly.

Further, the cutting tool comprises a circular knife and an electric drive part; the circular cutters are arranged in parallel along the axial direction of the driving roller; the electric drive part is arranged at the telescopic end of the telescopic drive assembly; the electric drive part is used for rotating the circular knife.

Further, the die-cutting mechanism of the printing machine also comprises a first feeding roller and a second feeding roller; the roller surface of the first feeding roller is provided with a rack and a convex ring; the convex ring is provided with a gear; the first feeding roller and the second feeding roller are oppositely arranged at the feeding side of the driving roller; the racks are arranged in parallel along the axial direction of the first feeding roller; the convex ring is sleeved on the roller surface of the first feeding roller; the gear is rotatably arranged on the inner ring of the convex ring and is meshed with the rack.

Further, a plurality of first pin holes are formed in the rack in parallel along the axial direction of the first feeding roller; the convex ring is provided with a second pin hole matched with the first pin hole.

Further, the die-cutting mechanism of the printing machine also comprises a conveying belt; the conveyor belt is disposed below the cutter roller.

The utility model discloses in, when the cardboard passes between drive roll and the cutter roller, drive the cam through driving actuating cylinder and rotate downwards, make the cam offset rotate the seat at the drive roll, produce decurrent stress, in order to offset the cardboard and rotate the ascending stress that the seat produced to the drive roll, make the drive roll rotate a stress balance, avoid the drive roll to rotate the seat and take place deformation and the phenomenon that the drive roll working process is beated or is inclined appears, ensure that the drive roll rotates steadily, ensure to open out the trench on the cardboard, reduce cross cutting rejection rate.

Drawings

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

fig. 2 is a schematic structural view of a cylinder pressing and locking mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic view of a cutting assembly according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of the first feeding roller in an embodiment of the present invention.

Wherein: the device comprises a rack 100, a driving roller rotating seat 110, an air cylinder pressing and locking mechanism 120, a driving air cylinder 121, a cam 122, a driving roller 200, a protective rubber layer 210, a ball screw linear transmission mechanism 220, a cutting assembly 230, a cutting tool 231, a circular cutter 2311, a telescopic driving assembly 232, a sliding rail 2321, a sliding block 2322, an adjusting plate 2323, an adjusting bolt 2324, a cutter roller 300, a first feeding roller 400, a rack 410, a first pin hole 411, a convex ring 420, a second pin hole 421, a second feeding roller 500 and a conveying belt 600.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.

Referring to fig. 1-4, a die cutting mechanism of a printing machine comprises a frame 100, a drive roller 200 and a cutter roller 300, wherein the drive roller 200 and the cutter roller 300 are rotatably arranged on the frame 100 in a manner of facing up and down, and a cylinder lower pressing locking mechanism 120 is arranged on a drive roller rotating seat 110 of the frame 100; the cylinder push-down locking mechanism 120 includes a driving cylinder 121 and a cam 122; the driving cylinder 121 is arranged on the inner side wall of the rack 100, and an expansion rod of the driving cylinder 121 extends downwards; the cam 122 is eccentrically rotatably provided above the drive roller rotating base 110; the cam 122 is hinged to the telescopic rod of the driving cylinder 121.

The utility model discloses in, when the cardboard passes between drive roll 200 and the cutter roller 300, drive cam 122 through driving actuating cylinder 121 and rotate downwards, make cam 122 offset rotate seat 110 at the drive roll, produce decurrent stress, in order to offset the cardboard and rotate the ascending stress that seat 110 produced to the drive roll, make the drive roll rotate seat 110 atress balanced, avoid the drive roll to rotate seat 110 and take place deformation and the phenomenon that the 200 working process of drive roll jumped or inclined appears, ensure that drive roll 200 rotates steadily, ensure to offer the trench on the cardboard, reduce the cross cutting rejection rate.

Preferably, the outer circumference of the drive roller 200 is coated with a protective adhesive layer 210. The protective adhesive layer 210 is coated on the periphery of the driving roller 200, so that the roller body of the driving roller 200 is not in contact with the undried printing dye on the paperboard, the printing dye is prevented from being attached to the roller body of the driving roller 200, and the driving roller 200 is protected from being clean.

In some embodiments, the top of the drive roll 200 is provided with a ball screw linear drive mechanism 220 and a cutting assembly 230; the lead screws of the ball screw linear transmission mechanism 220 are arranged in parallel along the axial direction of the drive roll 200; the cutting assembly 230 is disposed at a lead screw nut of the ball screw linear transmission mechanism 220; the cutting assembly 230 is used to scrape off burrs on the surface of the protective adhesive layer 210. The ball screw linear transmission mechanism 220 includes a driving motor and a ball screw, and the ball screw is rotatably disposed on the frame 100 in parallel along the axial direction of the driving roll 200. When the burrs of the protective adhesive layer 210 are removed, the driving roll 200 rotates, and simultaneously the driving motor drives the lead screw of the ball screw to rotate, so that the lead screw nut drives the cutting assembly 230 to reciprocate in parallel along the axial direction of the driving roll 200, the burrs of the protective adhesive layer 210 are scraped, the roll surface of the driving roll 200 is kept flat, and the slotting precision of the paperboard is ensured. Wherein, the driving motor can be a servo motor or a stepping motor, and the control is convenient.

Specifically, cutting assembly 230 includes a cutting tool 231 and a telescopic drive assembly 232; the telescopic end of the telescopic driving assembly 232 extends out towards the driving roll 200; cutting tool 231 is disposed at the telescoping end of telescoping drive assembly 232. The driving roll 200 of the cutting tool 231 is driven to extend by the telescopic driving component 232, so that the cutting tool 231 is abutted against the surface of the protective adhesive layer 210, and the cutting tool 231 scrapes burrs of the protective adhesive layer 210. Specifically, in some embodiments, as shown in fig. 3, the telescopic driving assembly 232 includes a sliding rail 2321, a sliding block 2322, an adjusting plate 2323 and an adjusting bolt 2324, the sliding block 2322 is slidably engaged with the sliding rail 2321, the adjusting plate 2323 is disposed at the top end of the sliding rail 2321, the adjusting bolt 2324 is rotatably disposed at the adjusting plate 2323, one end of the adjusting screw passes through the adjusting plate 2323 and then is threadedly connected to the top of the sliding block 2322, and the cutting tool 231 is fixed at the bottom of the sliding block 2322. By rotating the adjusting bolt 2324, the sliding block 2322 slides up and down in the sliding rail 2321 to drive the cutting tool 231 to stretch up and down, so that the distance between the cutting tool 231 and the driving roll 200 can be adjusted, and the adjusting device is simple in structure and convenient to operate. In addition, in other embodiments of the present invention, the telescopic driving assembly 232 may also be an air cylinder or an electric push rod, which is convenient to control. Among them, the cutting tool 231 may be a straight blade disposed in parallel along the axial direction of the drive roll 200. More preferably, as shown in fig. 3, the cutting tool 231 includes a circular cutter 2311 and an electric drive; the circular knives 2311 are arranged in parallel along the axial direction of the drive roller 200; the electric drive part is arranged at the telescopic end of the telescopic drive assembly 232; the electric driving part is used to rotate the circular knife 2311. The circular cutter 2311 is used as the cutting tool 231, and the circular cutter 2311 is rotated through the electric driving part, so that the cutting tool 231 can move in the axial direction of the driving roller 200, and the cutting tool 231 is prevented from being clamped into the protective adhesive layer 210 to be twisted and damaged when the cutting tool 231 moves. The electric drive unit may be a dc motor or an ac motor.

It is worth noting that as shown in fig. 4, the die-cutting mechanism of the printing press further comprises a first feeding roller 400 and a second feeding roller 500; the surface of the first feeding roller 400 is provided with a rack 410 and a convex ring 420; the convex ring 420 is provided with a gear (not shown); the first feeding roller 400 and the second feeding roller 500 are oppositely arranged on the feeding side of the driving roller 200 from top to bottom; the racks 410 are arranged in parallel along the axial direction of the first feeding roller 400; the convex ring 420 is sleeved on the roller surface of the first feeding roller 400; the gear is rotatably disposed at an inner circumference of the male ring 420 and engaged with the rack 410. The first feeding roller 400 and the second feeding roller 500 are oppositely arranged on the feeding side of the driving roller 200 up and down to form a pair of rollers, so that the paper board is fed between the driving roller 200 and the cutter roller 300. The convex ring 420 is arranged on the first feeding roller 400, so that the paperboard to be fed between the driving roller 200 and the cutter roller 300 is positioned, the paperboard is prevented from deviating, and the slotting precision of the paperboard is improved. Further, the rack 410 and the gear cooperate to allow the convex ring 420 to move along the rack 410, thereby facilitating the transportation of paper sheets with different widths.

Further, the rack 410 is provided with a plurality of first pin holes 411 in parallel along the axial direction of the first feeding roller 400; the male ring 420 is provided with a second pin hole 421 to be fitted with the first pin hole 411. As shown in fig. 4, in the utility model discloses in, after the position has been adjusted to bulge loop 420, pass second pinhole 421 and first pinhole 411 through the pin after, realize locking between bulge loop 420 and the rack 410, make bulge loop 420 fix on first feeding roller 400 to avoid bulge loop 420 to remove about.

More preferably, as shown in FIG. 1, the printer die-cutting mechanism further includes a conveyor belt 600; the conveyor belt 600 is disposed below the cutter roller 300. By providing the conveyor belt 600 below the cutter roller 300, the paper sheet passing between the drive roller 200 and the cutter roller 300 falls on the conveyor belt 600, so that the formed paper sheet is conveniently conveyed out of the printing machine for sorting.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a printing machine die-cutting mechanism, includes frame, drive roll and cutter roller are just right ground from top to bottom rotated the setting and are in the frame, its characterized in that:

a cylinder pressing locking mechanism is arranged on a driving roller rotating seat of the rack;

the cylinder pressing locking mechanism comprises a driving cylinder and a cam;

the driving cylinder is arranged on the inner side wall of the rack, and a telescopic rod of the driving cylinder extends downwards;

the cam is eccentrically and rotatably arranged above the driving roller rotating seat;

the cam is hinged with a telescopic rod of the driving cylinder.

2. A printing press die-cutting mechanism as claimed in claim 1, wherein:

the periphery of the driving roller is coated with a protective glue layer.

3. A printing press die-cutting mechanism as claimed in claim 2, wherein:

the top of the driving roller is provided with a ball screw linear transmission mechanism and a cutting assembly;

the lead screw of the ball screw linear transmission mechanism is arranged in parallel along the axis direction of the driving roll;

the cutting assembly is arranged on a screw nut of the ball screw linear transmission mechanism;

the cutting assembly is used for scraping burrs on the surface of the protective glue layer.

4. A printing press die-cutting mechanism as claimed in claim 3, wherein:

the cutting assembly comprises a cutting tool and a telescopic driving assembly;

the telescopic end of the telescopic driving component extends out towards the driving roller;

the cutting tool is disposed at a telescoping end of the telescoping drive assembly.

5. A printing press die-cutting mechanism as claimed in claim 4, wherein:

the cutting tool comprises a circular cutter and an electric drive part;

the circular cutters are arranged in parallel along the axial direction of the driving roller;

the electric driving part is arranged at the telescopic end of the telescopic driving component;

the electric drive part is used for rotating the circular knife.

6. A printing press die-cutting mechanism as claimed in claim 1, wherein:

the die-cutting mechanism of the printing machine further comprises a first feeding roller and a second feeding roller;

the roller surface of the first feeding roller is provided with a rack and a convex ring;

the convex ring is provided with a gear;

the first feeding roller and the second feeding roller are oppositely arranged on the feeding side of the driving roller from top to bottom;

the racks are arranged in parallel along the axial direction of the first feeding roller;

the convex ring is sleeved on the roller surface of the first feeding roller;

the gear is rotatably arranged on the inner ring of the convex ring and meshed with the rack.

7. A printing press die-cutting mechanism as claimed in claim 6, wherein:

the rack is provided with a plurality of first pin holes in parallel along the axial direction of the first feeding roller;

the convex ring is provided with a second pin hole matched with the first pin hole.

8. A printing press die-cutting mechanism as claimed in claim 1, wherein:

the die-cutting mechanism of the printing machine also comprises a conveying belt;

the conveyor belt is disposed below the cutter roller.