CN211942501U - Device for identifying pattern initial position on gravure printing plate of winding drum - Google Patents

Abstract

The utility model discloses a device of pattern initial position on discernment reel intaglio printing plate relates to the printing field, including reel intaglio, reel intaglio test rack, reel intaglio zero degree location monitoring part, reel intaglio pattern zero degree indicating part and roll up concave equipment sensing part. The utility model discloses based on sensing detection principle and a roll of gravure equipment principle of rectifying, carry out the calibration of the preliminary location of reel intaglio pattern initial position through reel intaglio zero degree benchmark mark and reel intaglio zero degree location monitoring part, rethread zero degree indicating part carries out reel intaglio pattern initial position information with a roll of gravure equipment sensing part and conveys, let roll up gravure equipment and receive each look group reel intaglio pattern initial position concrete information simultaneously, make various kinds of group register the accurate color mark just carry out accurate register before the printing begins, and enter into automatic register identification range, the purpose of high-efficient register has been reached, the flow has been simplified, material resources have been saved, manpower and time, therefore, the clothes hanger is strong in practicability.

Description

Device for identifying pattern initial position on gravure printing plate of winding drum

Technical Field

The utility model relates to a printing field especially relates to a device of pattern initial position on discernment reel gravure printing board.

Background

Gravure printing is one of the traditional printing modes, and takes an extremely important position in the fields of printing packaging and graphic publishing by the advantages of thick ink layer of a printed product, high color saturation, high printing plate printing endurance, stable quality of the printed product, high printing speed and the like. The intaglio is made of metal material, its exterior is plated with chromium and copper, its image-text portion is lower than blank portion, and when it is printed, the full plate is inked, then under the action of scraping of ink-scraping knife the ink of image-text portion is only remained in the intaglio, and transferred onto printing material so as to obtain the invented printed matter.

Most of the printed products are printed in multiple colors, and gravure printing of all color groups of picture and text sets becomes a key. Based on this, all install automatic overprinting device on the web gravure equipment, when the overprint mark on the printed sheet passes through the scanning head, pulse signal just conveys electronic controller, and electronic controller passes through the time difference of taking place the pulse, adjusts the motor, makes the overprint between two front and back colour groups adjust the roller and move to eliminate the overprint error.

However, when the web gravure is mounted on the gravure printing apparatus, only by printing the gravure pattern on a printing material (e.g., paper, plastic film), the apparatus registration system can recognize the position of each color set registration color patch to perform registration adjustment. Under this condition, like the paper when needing to print certain length bearing material, equipment registration system's sensor can read all colour group registration color marks. Under the condition of multi-color set printing, as shown in fig. 1, when printing is started, due to the existence of plate loading errors, idle rotation and other reasons, the triangular registration color marks 1, 2, 3, 4 and the like are not necessarily arranged at the effective intervals as shown in fig. 1 and exceed the range of automatic registration identification, and operators need to manually adjust the error color set printing plate angle of the gravure equipment, so that the registration color marks enter the effective range of automatic registration after being printed on a printing stock according to the sequence shown in fig. 1. In the manual adjustment stage, the complicated processes of color code space detection and manual adjustment are registered through color printing stock color running printing, so that material resources, manpower and time are seriously wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a device of pattern initial position on discernment reel gravure printing board to solve the problem that above-mentioned prior art exists, avoided running look printing through the stock in the past, material resources, manpower and time have been saved to the loaded down with trivial details flow of registration color code interval detection and manual adjustment.

In order to achieve the above object, the utility model provides a following scheme:

the utility model provides a device of pattern initial position on discernment reel gravure printing board, include:

the two end parts of the reel intaglio plate are respectively provided with a reel intaglio zero degree reference mark;

the roll gravure test frame comprises a test frame, a foot rest supported at the bottom of the test frame and a support buckle arranged above the test frame, wherein two ends of the roll gravure are arranged in the support buckle through roll gravure plate shafts;

the roll gravure zero-degree positioning monitoring component comprises a main body frame, a cross mark projector and a positioning probe for positioning and checking and calibrating a roll gravure pattern zero-degree indicating component, wherein the main body frame is arranged above the checking frame, and the cross mark projector and the positioning probe are both arranged on the main body frame;

the cylinder intaglio pattern zero degree indicating component comprises an indicating block arranged on the cylinder intaglio shaft and a detection reference mark arranged on the top of the indicating block, and the indicating block can be collected by the positioning probe;

and the roll gravure equipment sensing part is used for being installed on each color group of the gravure equipment, is positioned at the end of the ink groove, can be aligned and corresponds to the roll gravure pattern zero-degree indicating part, and collects the indicating blocks.

Optionally, the gravure zero-degree reference mark of the winding drum is a circular cross mark.

Optionally, an annular marking line is arranged on the shaft of the winding drum intaglio plate and used for aligning with a side line of the support bracket buckle during installation.

Optionally, a level gauge for ensuring that the main body frame is in a horizontal state is further mounted on the main body frame.

Optionally, a projector translation groove is formed in the main body frame, and a plurality of cross-shaped projectors are slidably mounted in the projector translation groove.

Optionally, the positioning probe is in a U-shaped buckle shape, and the opening is arranged outwards, and a photoelectric probe or an electromagnetic sensing probe is additionally arranged in the positioning probe.

Optionally, the top of the indication block is of a square structure and is used for being clamped with a U-shaped buckle of the positioning probe.

Optionally, the bottom of the indication block is connected with an annular fixing clamp, and the annular fixing clamp is sleeved at one end of the reel intaglio plate shaft through a fixing bolt.

The utility model discloses for prior art gain following technological effect:

the utility model provides a device of pattern initial position on discernment reel intaglio printing plate, based on sensing detection principle and a roll gravure equipment principle of rectifying, carry out reel intaglio pattern initial position (zero degree position) preliminary location calibration through reel intaglio zero degree benchmark mark and reel intaglio zero degree location monitoring part, then carry out reel intaglio pattern initial position (zero degree position) information transmission through zero degree indicating part and a roll gravure equipment sensing part, let roll gravure equipment receive each look group reel intaglio pattern initial position (zero degree position) concrete information simultaneously, effectively make each look group register the accurate color mark just carry out accurate registration before the printing begins, and enter automatic register discernment within range, the mesh of high-efficient registration has been reached, through stock color running printing in the past, register the loaded down with trivial details flow of color mark interval detection and manual adjustment, material resources are saved color mark interval detection and manual adjustment, material resources are controlled, Manpower and time, the practicality is strong.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic illustration of a prior art pitch arrangement of triangular registration patches in the case of multi-color set printing;

FIG. 2 is a schematic structural view of an apparatus for identifying a starting position of a pattern on a gravure roll printing plate according to the present invention;

wherein the reference numerals are: 1. a reel intaglio plate; 2. a reel gravure zero-degree reference mark; 3. a reel gravure test stand; 3-1, an inspection frame; 3-2, a supporting foot frame; 3-3, supporting the buckle; 3-4, reel intaglio plate shaft; 3-5, ring-shaped marking; 4. a reel gravure zero-degree positioning monitoring component; 4-1, a main body frame; 4-2, a cross projector; 4-3, positioning a probe; 4-4, a level meter; 4-5, a projector translation groove; 5. a web gravure pattern zero degree indicating member; 5-1, an indication block; 5-2, detecting a reference mark; 5-3, annular fixing clips; 5-4, fixing bolts; 6. the roll recess device sensing component.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

The first embodiment is as follows:

as shown in fig. 2, the present embodiment provides an apparatus for identifying a start position of a pattern on a gravure roll, which is structured into five parts: the device comprises a roll gravure plate 1 with a special roll gravure plate zero degree reference mark 2, a roll gravure plate inspection frame 3, a roll gravure plate zero degree positioning monitoring part 4, a roll gravure plate pattern zero degree indicating part 5 and a roll gravure equipment sensing part 6. Wherein:

a first part: and a cylinder intaglio 1 with a special cylinder intaglio zero degree reference mark 2. When the printing plate surface content is normally engraved, a plurality of roll intaglio zero degree benchmark marks 2 in the same horizontal position are additionally engraved in blank positions of the roll intaglio 1 and can be named as roll intaglio zero degree benchmark marks 1 and 2 respectively, and the roll intaglio zero degree benchmark marks 2 are preferably circular cross marks and are not limited to intaglio designated positions. The positions of the gravure zero-degree reference marks 2 of all color groups of the same register are uniform, and the horizontal distances from the zero-degree reference marks with the same serial number to the gravure pattern starting positions of the cylinders are equal and the vertical distances are equal, namely, the condition that the gravure pattern starting positions of the whole register are at the same angle position when all color groups simultaneously detect the reference marks is met. In this embodiment, as shown in FIG. 2, ring-shaped marks 3-5 are provided at both ends of the roll cliche shaft 3-4, respectively.

A second part: and a roll gravure test frame 3. The part comprises a foot support 3-2, a test frame 3-1 and a support buckle 3-3, wherein preferably two support buckles 3-3 are horizontally and symmetrically arranged at the left end and the right end of the test frame 3-1. The reel intaglio 1 is positioned in the inspection frame 3-1, the reel intaglio shaft 3-4 is placed in the supporting buckle 3-3, and the annular marked line 3-5 on the reel intaglio shaft 3-4 is aligned with the side line of the supporting buckle 3-3. The arrangement of the ring-shaped marked lines 3-5 can ensure that the reel intaglio plate 1 is horizontally arranged and has the function of fixing the reel intaglio plate shafts 3-4 at the same left and right positions. The reel intaglio 1 can be manually rotated or fixed in the support bracket buckle 3-3.

And a third part: and a roll gravure zero-degree positioning monitoring part 4. The part comprises a main body frame 4-1, a level 4-4, a projector translation slot 4-5, a fixing bolt, a cross-shaped target projector 4-2 and a positioning probe 4-3. The main body frame 4-1 of the monitoring component is fixedly connected with the roll gravure testing stand 3, and the top horizontal frame platform of the testing frame 3-1 is ensured to be horizontally arranged right above the central connecting line of the two support buckle 3-3. The level 4-4 is used to ensure that the frame platform is level. The frame platform is provided with a plurality of projector translation grooves 4-5, and the cross-shaped projector 4-2 can horizontally translate and be fixed in the projector translation grooves 4-5 through fixing bolts. The positioning probe 4-3 is in a U-shaped buckle shape, the opening of the positioning probe faces outwards, and a photoelectric probe or an electromagnetic sensing probe is attached to the positioning probe or the electromagnetic sensing probe and used for positioning, checking and calibrating the gravure pattern zero-degree indicating component 5 of the winding drum.

The fourth part: and a web intaglio pattern zero degree indicating member 5. The part comprises a detection reference mark 5-2, an indicating block 5-1, an annular fixing clamp 5-3 and a fixing bolt 5-4. The annular fixing clamp 5-3 is sleeved on the reel intaglio plate shaft 3-4, and can perform operations of translation, rotation, fixation and the like through rotation of the fixing bolt 5-4. The indicator block 5-1 is perpendicular to the reel clich axis 3-4. The top of the indicating block 5-1 is preferably square, and can be matched with the U-shaped buckle of the positioning probe 4-3 of the roll gravure zero-degree positioning monitoring part 4 in a front-back manner, but does not obstruct the taking and placing of the roll gravure 1. The top of the indicating block 5-1 is provided with a detection reference mark 5-2 which can be collected by a positioning probe 4-3 of a roll gravure zero-degree positioning monitoring part 4 at a specific position and can also be collected by a roll gravure equipment sensing part 6. The device is used for horizontal positioning and checking calibration with a zero-degree reference standard of a gravure roll on one hand and zero-degree bit information transfer of gravure roll patterns on the other hand. In this embodiment, the specification and size of the gravure pattern zero degree indication parts of the winding drums of each color group are uniform.

The fifth part is that: the roll recess device sensor section 6. The parts are arranged on each color group of the gravure equipment, are positioned at the end of an ink groove and correspond to the zero degree indicating parts 5 of the gravure patterns of the winding drum one by one. Zero degree bit information indicating the intaglio pattern of the web of parts can be received at a specific location and transmitted to the system. Meanwhile, the relative positions of the rolling concave device sensing parts 6 of all color groups are required to be ensured to be uniform. Preferred positions are: as shown in FIG. 2, the height of the cylinder intaglio plate shaft 3-4 is just above the detection reference mark 5-2 of the cylinder intaglio pattern zero degree indicating part 5.

The following is a description of the specific use principle of the present embodiment:

1. the device for identifying the starting position of the pattern on the gravure printing plate of the reel is based on a sensing detection principle and a correction principle of a roll gravure device;

2. the gravure zero-degree positioning monitoring part 4 is an independent monomer. The cross-shaped mark projector 4-2 and the positioning probe 4-3 are fixed on the main body frame 4-1 and are additionally provided with a level 4-4. And the gravure of each color group of the cylinders is calibrated by the same zero-degree positioning monitoring part (on the premise of being horizontal, when the reference marks of the gravure of each color group of the cylinders are respectively checked and calibrated, the positions of the cross mark projector and the positioning probe are kept unchanged). The supply reference mark inspection can be performed on the roll gravure 1 in advance.

3. The gravure roll 1 needs to ensure that each color group of gravure roll zero degree reference marks are respectively horizontally aligned to the cross mark projector 4-2 and the positioning probe 4-3 which are positioned on the gravure roll zero degree positioning monitoring part 4 during engraving, the positions of the gravure roll zero degree reference marks of each color group are uniform, and the horizontal distance and the vertical distance between the zero degree reference marks of corresponding sequence numbers and the initial position of the gravure roll pattern are equal (but not limited to a certain designated position of the gravure roll). Namely, the initial positions of the intaglio patterns of the whole set of winding drums are at the same angular position when the reference marks are detected simultaneously by all color groups.

4. The cylinder intaglio pattern zero degree indicating component 5 synchronously represents the specific position condition of the cylinder intaglio pattern starting position (zero degree position).

5. And a photoelectric sensing probe of the roll gravure equipment acquires information of a roll gravure pattern zero-degree indicating component. In the idle running process of the roll intaglio 1, the positioning information of the indicating part rotating to the zero degree position along with the intaglio can be effectively obtained. The photoelectric sensing probe of the rolling concave equipment can transmit the acquired zero-degree bit information to the rolling concave equipment. The gravure equipment can be linked to slow or stop rotating the color group reel intaglio after receiving the zero-degree bit information.

6. And the gravure zero-degree position unification of the gravure of the winding drums of each color group is sequentially completed by the gravure equipment through systematic deviation rectification from front to back according to the collected zero-degree position condition of the gravure of the winding drums of each color group according to the plate mounting sequence. And finishing accurate calibration.

7. And (3) performing combined press printing, wherein triangular registration color codes 1, 2, 3, 4 and the like on a printing stock are effectively arranged at equal intervals and enter an automatic registration effective range of a roll concave equipment.

It should be noted that the utility model discloses in still including control system, driving piece, the reel intaglio zero degree location monitoring part of above-mentioned reel intaglio axle, reel intaglio pattern zero degree indicating part and roll up concave equipment sensing part all with this control system signal connection to ensure the automatic operation of equipment. Moreover, each component of the present invention is connected with the control system in a conventional manner, and the information transmission and control principle are well known in the art and are not described herein again.

Therefore, the utility model provides a device of pattern initial position on discernment reel intaglio printing plate, based on sensing detection principle and the principle of rectifying of a roll gravure equipment, carry out reel intaglio pattern initial position (zero degree position) preliminary location calibration through reel intaglio zero degree benchmark mark and reel intaglio zero degree location monitoring part, then carry out reel intaglio pattern initial position (zero degree position) information transmission through zero degree indicating part and a roll gravure equipment sensing part, let roll gravure equipment receive each look group reel intaglio pattern initial position (zero degree position) concrete information simultaneously, effectively make each look group's registration color mark just carry out accurate registration before the printing begins, and enter automatic registration discernment within range, the mesh of high-efficient registration has been reached, avoided in the past through stock color running printing, registration color mark interval detects and manual adjustment's loaded down with trivial details flow, material resources have been saved, Manpower and time, the practicality is strong.

It should be noted that, as is obvious to a person skilled in the art, the invention is not limited to details of the above-described exemplary embodiments, but can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims (8)

1. An apparatus for identifying a starting position of a pattern on a web gravure printing plate, comprising: the method comprises the following steps:

the two end parts of the reel intaglio plate are respectively provided with a reel intaglio zero degree reference mark;

the roll gravure test frame comprises a test frame, a foot rest supported at the bottom of the test frame and a support buckle arranged above the test frame, wherein two ends of the roll gravure are arranged in the support buckle through roll gravure plate shafts;

the roll gravure zero-degree positioning monitoring component comprises a main body frame, a cross mark projector and a positioning probe for positioning and checking and calibrating a roll gravure pattern zero-degree indicating component, wherein the main body frame is arranged above the checking frame, and the cross mark projector and the positioning probe are both arranged on the main body frame;

the cylinder intaglio pattern zero degree indicating component comprises an indicating block arranged on the cylinder intaglio shaft and a detection reference mark arranged on the top of the indicating block, and the indicating block can be collected by the positioning probe;

and the roll gravure equipment sensing part is used for being installed on each color group of the gravure equipment, is positioned at the end of the ink groove, can be aligned and corresponds to the roll gravure pattern zero-degree indicating part, and collects the indicating blocks.

2. The apparatus for identifying a start position of a pattern on a gravure roll printing plate according to claim 1, wherein: the gravure zero-degree reference mark of the winding drum is a circular cross mark.

3. The apparatus for identifying a start position of a pattern on a gravure roll printing plate according to claim 1, wherein: and an annular marking line is arranged on the shaft of the winding drum intaglio plate and is used for aligning with a side line of the support bracket buckle when being installed.

4. The apparatus for identifying a start position of a pattern on a gravure roll printing plate according to claim 1, wherein: and the main body frame is also provided with a level gauge for ensuring that the main body frame is in a horizontal state.

5. The apparatus for identifying a start position of a pattern on a gravure roll printing plate according to claim 1, wherein: the main body frame is provided with a projector translation groove, and the projector translation groove is internally provided with a plurality of cross-shaped projectors in a sliding way.

6. The apparatus for identifying a start position of a pattern on a gravure roll printing plate according to claim 1, wherein: the positioning probe is in a U-shaped buckle shape, the opening of the positioning probe is arranged outwards, and a photoelectric probe or an electromagnetic sensing probe is additionally arranged in the positioning probe.

7. The apparatus for identifying a start position of a pattern on a gravure roll printing plate according to claim 6, wherein: the top of the indication block is of a square structure and is used for being clamped with the U-shaped buckle of the positioning probe.

8. The apparatus for identifying a start position of a pattern on a gravure roll printing plate according to claim 6, wherein: the bottom of the indication block is connected with an annular fixing clamp, and the annular fixing clamp is sleeved at one end of the reel intaglio plate shaft through a fixing bolt.

Images