CN112606542A

CN112606542A - Device and method for adjusting printing position

Info

Publication number: CN112606542A
Application number: CN202011497605.8A
Authority: CN
Inventors: 袁宝君; 王广; 沈显良; 李季; 陈营
Original assignee: Lankao Yufu Precision Technology Co Ltd
Current assignee: Lankao Yufu Precision Technology Co Ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-04-06

Abstract

The application provides a device and a method for adjusting a printing position, wherein the device for adjusting the printing position comprises the following steps: a table, comprising: the bearing assembly is positioned at a first station in the workbench, is used for bearing a first workpiece and is matched with the printing mechanism so as to print the medium to the first workpiece and form a second workpiece, and the second workpiece contains a mark shape formed by the medium; the adjusting component is connected with the bearing component; the transmission module is connected with the workbench; the detection module is connected with the transmission module and is used for: and receiving the second workpiece transmitted from the transmission module, and forming adjustment information according to the mark shape. The adjusting component is also coupled with the detection module and used for adjusting the bearing component to the second station according to the adjusting information. The second workpiece can be detected in real time, the position of the bearing assembly can be selectively adjusted according to the detection result, the feedback correction is timely, time consumption is short, and the printing efficiency can be improved.

Description

Device and method for adjusting printing position

Technical Field

The application relates to the technical field of printing, in particular to a device and a method for adjusting a printing position.

Background

When carrying out screen printing to the work piece surface, generally need the manual work to carry out the net, after the printing is accomplished, carry out manual detection again, but adopt this kind of mode to debug consuming time longer when the net, and the time consuming of censorship and detection is longer during the detection, and the feedback lags behind to influence printing efficiency.

Disclosure of Invention

In view of the above problems, the present application provides an apparatus and a method for adjusting a printing position to solve the above problems.

The application provides a device of adjustment printing position contains:

a table, comprising:

a bearing component, which is positioned at a first station in the workbench, is used for bearing a first workpiece and is matched with the printing mechanism to print media to the first workpiece to form a second workpiece, and the second workpiece contains a mark shape formed by the media;

the adjusting component is connected with the bearing component;

the transmission module is connected with the workbench;

the detection module is connected with the transmission module and is used for:

receiving the second workpiece transferred from the transmission module;

forming adjustment information according to the mark shape;

the adjusting component is also coupled with the detection module and used for adjusting the bearing component to a second station according to the adjusting information.

In some embodiments, the detection module comprises:

the detection table is used for receiving the second workpiece transmitted by the transmission module;

a photographing mechanism, disposed toward the inspection stage, for photographing the second workpiece to form a first image;

a processor coupled to the camera mechanism for:

calculating the deviation of the mark shape from a preset shape according to the first image;

forming the adjustment information according to the deviation;

a communicator, coupled to the processor, for sending the adjustment information to the adjustment component.

In some embodiments, wherein the second workpiece includes a first centerline of the preset shape, the processor is further configured to:

sampling the outline edge of the mark shape according to the first image to form an outline point set;

forming a second centerline of the marker shape from the set of contour points;

and calculating the difference between the first central line and the second central line to form the deviation of the mark shape from a preset shape.

In some embodiments, the detection module comprises:

the detection table is used for receiving the second workpiece transmitted by the transmission module, and the second workpiece is positioned at a first position;

the transmission module is further used for moving the second workpiece to a second position;

the shooting mechanism is further used for shooting the second workpiece to form a second image;

a processor coupled to the camera mechanism for:

splicing the first image and the second image to form a third image;

calculating the deviation of the mark shape from a preset shape according to the third image;

forming the adjustment information according to the deviation;

sampling the contour edge of the mark shape according to the third image to form a contour point set;

forming a second centerline of the marker shape from the set of contour points;

The application provides a method for adjusting a printing position, which comprises the following steps:

carrying a first workpiece on a carrying assembly, wherein the carrying assembly is positioned at a first station in a workbench;

printing a medium to the first workpiece through a printing mechanism to form a second workpiece, wherein the second workpiece comprises a mark shape formed by the medium;

moving the second workpiece to a detection module;

detecting the shape of the mark through the detection module to form adjustment information;

sending the adjustment information to an adjustment component in the workbench;

and adjusting the bearing component to a second station through the adjusting component according to the adjusting information.

In some embodiments, wherein the step of forming adjustment information comprises:

shooting the second workpiece to form a first image;

and forming the adjusting information according to the deviation.

In some embodiments, wherein the second workpiece comprises a first centerline of the predetermined shape, the step of calculating the deviation of the mark shape from the predetermined shape comprises:

forming a second centerline of the marker shape from the set of contour points;

shooting the second workpiece to form a first image, wherein the second workpiece is located at a first position;

moving the second workpiece to a second position;

shooting the second workpiece to form a second image;

splicing the first image and the second image to form a third image;

and forming the adjusting information according to the deviation.

forming a second centerline of the marker shape from the set of contour points;

According to the method, the bearing assembly bears the first workpiece, the bearing assembly is matched with the printing mechanism, the medium is printed on the first workpiece to form the second workpiece, then the detection module receives the second workpiece transmitted by the transmission module, the adjustment information is formed according to the mark shape, and then the bearing assembly is adjusted to the required position by the adjustment assembly according to the adjustment information. Compared with the prior art, the method and the device can detect the second workpiece in real time, selectively adjust the position of the bearing component according to the detection result, feed back and correct timely, consume less time and improve the printing efficiency.

Drawings

Fig. 1 is a schematic perspective view of an apparatus for adjusting a printing position according to a first embodiment of the present application.

Fig. 2 is a block diagram showing a configuration of an apparatus for adjusting a printing position according to a first embodiment of the present application.

Fig. 3 is a flowchart of a method for adjusting a printing position according to an embodiment of the present application.

FIG. 4 is a flowchart illustrating specific steps of one embodiment of forming adjustment information in FIG. 3.

Fig. 5 is a flowchart illustrating the specific steps of fig. 4 for calculating the deviation of the mark shape from the preset shape.

Fig. 6 is a flowchart illustrating specific steps of another embodiment of forming adjustment information in fig. 3.

Fig. 7 is a flowchart illustrating the specific steps of fig. 6 for calculating the deviation of the mark shape from the preset shape.

Description of the main elements

Apparatus 100 for adjusting printing position

Working table 10

Bearing assembly 11

First station 111

A second station 112

Adjustment assembly 12

Z-axis adjuster 121

X-axis adjuster 122

Y-axis adjuster 123

Transmission module 20

Conveying frame 21

Conveyor belt 22

Transport drive 23

Detection module 30

Detection table 31

Shooting mechanism 32

Processor 33

Communicator 34

Detailed Description

In order that the above objects, features and advantages of the present application can be more clearly understood, a detailed description of the present application will be given below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth to provide a thorough understanding of the present application, and the described embodiments are merely a subset of the embodiments of the present application and are not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

Referring to fig. 1 and 2, a first embodiment of the present application provides an apparatus 100 for adjusting a printing position, which is used for adjusting the printing position. The device comprises a workbench 10, a transmission module 20 and a detection module 30.

The table 10 includes a carrier assembly 11 and an adjustment assembly 12.

The carrier assembly 11 is substantially rectangular plate-shaped. The carrier assembly 11 is located at a first station 111 in the table 10 for carrying a first workpiece (not shown) and cooperates with the printing mechanism to print media onto the first workpiece to form a second workpiece (not shown) containing indicia shapes formed by the media. Wherein the first station 111 is an initial printing position. In this embodiment, the printing mechanism is a printing press. The first workpiece is a workpiece on which printing is not performed, and the second workpiece is a printed workpiece. The medium includes, but is not limited to, ink. The shape of the mark may be a frame shape, a circle shape, a fan shape, etc., and may be specifically set according to actual needs, which is not specifically limited herein.

In some embodiments of the present application, it is generally necessary to print a mark shape on a first workpiece (for example, a glass plate), i.e., to form a second workpiece, so that the second workpiece is subjected to a subsequent stamping or cutting process, and a workpiece with a specific shape, which may be a complex outline structure or a simple geometric shape such as a circle, a rectangle, etc., is formed. If the mark shape is not aligned with the position of the glass plate, errors in subsequent processes can be caused in an automatic workshop, and the yield is reduced. Therefore, the device 100 for adjusting the printing position needs to automatically adjust the relationship between the first workpiece and the printing position, thereby reducing the machine-tuning event and reducing the probability of error occurrence.

The adjusting assembly 12 is connected to the carrier assembly 11 for driving the carrier assembly 11 to move.

The transmission module 20 is connected with the worktable 10.

The transmission module 20 includes a transmission rack 21, a transmission belt 22 and a transmission driving member 23.

The transfer frame 21 is provided at one side of the table 10. The conveyor belt 22 is rotatably disposed on the conveyor frame 21, and the conveying driving member 23 is connected to the conveyor belt 22 for driving the conveyor belt 22 to rotate so as to convey the second workpiece to the detection module 30. It will be appreciated that the drive module 20 may also include a pick-and-place device, such as a robot, for picking up a second workpiece on the table 10 and placing it on the conveyor 22 for transport.

It is understood that in other embodiments, the transmission module 20 may also include a linear module and a slide rail to transfer the second workpiece to the detection module 30, but is not limited thereto.

The detection module 30 is connected to the transmission module 20, and is used for receiving the second workpiece transmitted from the transmission module 20 and forming adjustment information according to the mark shape. Illustratively, the adjustment information can guide the position of the printing mechanism when printing the first workpiece next time, and reduce the generated deviation.

The adjusting component 12 is further coupled to the detecting module 30 for adjusting the carrying component 11 to the second station 112 according to the adjusting information. Where the second station 112 is the correct printing position. In this embodiment, the adjusting assembly 12 includes a Z-axis adjusting member 121, an X-axis adjusting member 122 and a Y-axis adjusting member 123, wherein a driving end of the Z-axis adjusting member 121 is connected to the X-axis adjusting member 122 for driving the X-axis adjusting member 122 to move along the Z-axis; the driving end of the X-axis adjusting member 122 is connected to the Y-axis adjusting member 123 for driving the Y-axis adjusting member 123 to move along the X-axis; the driving end of the Y-axis adjusting member 123 is connected to the bearing assembly 11 for driving the bearing assembly 11 to move in the Y-axis, so that the bearing assembly 11 can move in the X-axis and/or the Y-axis and/or the Z-axis by the mutual cooperation among the Z-axis adjusting member 121, the X-axis adjusting member 122 and the Y-axis adjusting member 123, so as to adjust the position of the bearing assembly 11.

Specifically, the detection module 30 includes a detection stage 31, a shooting mechanism 32, a processor 33, and a communicator 34.

The inspection station 31 is a supporting platform for receiving the second workpiece transferred from the transmission module 20.

The imaging mechanism 32 is disposed toward the inspection stage 31, and is configured to image the second workpiece to form a first image. In the present embodiment, the shooting mechanism 32 is a line camera.

The processor 33 is coupled to the photographing mechanism 32 for calculating a deviation of the mark shape from a preset shape according to the first image; based on the deviation, adjustment information is formed. The processor 33 may be a Central Processing Unit (CPU), a microprocessor or other data Processing chip, etc., but is not limited thereto.

The communicator 34 is coupled to the processor 33 for sending the adjustment information to the adjustment assembly 12. The communicator 34 is a portable telecommunication tool that enables information interaction between the processor 33 and the adjustment assembly 12.

Further, the second workpiece comprises a first center line of a predetermined shape, and the processor 33 is further configured to:

sampling the contour edge of the mark shape according to the first image to form a contour point set;

forming a second centerline of the marker shape from the set of contour points;

and calculating the difference between the first central line and the second central line to form the deviation of the mark shape from the preset shape. In this embodiment, the mark is rectangular in shape, and the first center line is two dotted lines of a cross shape. By calculating the difference between the first center line and the second center line, the offset of the two dotted lines constituting the second center line with respect to the corresponding two dotted lines of the first center line can be obtained.

A second embodiment of the present application provides an apparatus 100 for adjusting a printing position, and the apparatus 100 for adjusting a printing position in the second embodiment is substantially the same as the apparatus 100 for adjusting a printing position in the first embodiment, except that:

the detection module 30 includes a detection stage 31, an imaging mechanism 32, a processor 33, and a communicator 34.

The detection table 31 is used for receiving a second workpiece transmitted from the transmission module 20, and the second workpiece is located at a first position;

a photographing mechanism 32 disposed toward the inspection stage 31 for photographing the second workpiece to form a first image; the first image is a partial image of the second workpiece, i.e., the camera 32 cannot capture a complete image of the second workpiece at once.

The transmission module 20 is further used for moving the second workpiece to the second position.

And a shooting mechanism 32 for shooting the second workpiece to form a second image.

The processor 33 is coupled to the camera mechanism 32 for:

splicing the first image and the second image to form a third image;

calculating the deviation of the mark shape from the preset shape according to the third image;

based on the deviation, adjustment information is formed.

The communicator 34 is coupled to the processor 33 for sending the adjustment information to the adjustment assembly 12.

Referring to fig. 3, a third embodiment of the present invention provides a method for adjusting a printing position, which can be performed in the apparatus 100 for adjusting a printing position, and includes the following steps:

s210: the first workpiece is carried on a carrier assembly 11, the carrier assembly 11 being located at a first station 111 in the table 10.

Specifically, the first workpiece is a workpiece that is not printed, and the first station 111 is an initial printing position.

S220: and printing the medium to the first workpiece through the printing mechanism to form a second workpiece, wherein the second workpiece comprises a mark shape formed by the medium.

In particular, the printing mechanism is a printing press. The medium includes, but is not limited to, ink. The second workpiece is a printed workpiece. The shape of the mark may be a frame shape, a circle shape, a fan shape, etc., and may be specifically set according to actual needs, which is not specifically limited herein.

S230: the second workpiece is moved to the inspection module 30.

Specifically, the transmission module 20 can move the second workpiece to the detection module 30.

S240: the mark shape is detected by the detection module 30 to form adjustment information.

Specifically, the processor 33 may compare the obtained mark shape with a preset shape to form adjustment information.

S250: sends the adjustment information to the adjustment assembly 12 in the workstation 10.

Specifically, communicator 34 sends adjustment information to adjustment assembly 12 in workstation 10.

S260: and adjusting the bearing component 11 to the second station 112 through the adjusting component 12 according to the adjusting information.

Specifically, the adjusting assembly 12 adjusts the carrier assembly 11 to the second station 112 according to the adjustment information, i.e. the correct printing position, and the preset shape is exemplified by the position of the glass plate where the correct printing shape is located.

In some embodiments, referring to fig. 4, the step of forming the adjustment information includes:

s241: the second workpiece is photographed to form a first image.

Specifically, the photographing mechanism 32 photographs the second workpiece, forming a first image.

S242: from the first image, a deviation of the shape of the mark from a preset shape is calculated.

Specifically, the processor 33 calculates a deviation of the mark shape from a preset shape from the first image.

S243: based on the deviation, adjustment information is formed.

Specifically, the processor 33 forms the adjustment information based on the deviation.

Further, referring to fig. 5, the step of calculating the deviation between the mark shape and the predetermined shape includes:

s2421: and sampling the contour edge of the mark shape according to the first image to form a contour point set.

Specifically, the set of contour points is substantially rectangular in shape.

S2422: from the set of contour points, a second centerline of the mark shape is formed.

Specifically, the second center line is two dotted lines arranged in a cross shape.

S2423: and calculating the difference between the first central line and the second central line to form the deviation of the mark shape from the preset shape.

Specifically, by calculating the difference between the first center line and the second center line, the offset amounts of the two dotted lines constituting the second center line with respect to the corresponding two dotted lines in the first center line can be obtained.

In some embodiments, referring to fig. 6, the step of forming the adjustment information includes:

s244: a second workpiece is photographed to form a first image, the second workpiece being located at a first position.

Specifically, the first image is a partial image of the second workpiece, that is, the photographing mechanism 32 cannot photograph a complete image of the second workpiece at a time.

S245: the second workpiece is moved to a second position.

Specifically, by moving the second workpiece, the photographing mechanism 32 can be caused to photograph images of different positions of the second workpiece.

S246: and shooting a second workpiece to form a second image.

Specifically, the second image is an image in which the photographing mechanism 32 photographs different positions of the second workpiece. Portions of the second image and the first image may coincide.

S247: and splicing the first image and the second image to form a third image.

In particular, the third image is a complete image of the second workpiece.

S248: and calculating the deviation of the mark shape from the preset shape according to the third image.

S249: based on the deviation, adjustment information is formed.

Further, the second workpiece includes a first center line of a predetermined shape, referring to fig. 7, the step of calculating the deviation between the mark shape and the predetermined shape includes:

s2481: and sampling the contour edge of the mark shape according to the third image to form a contour point set.

Specifically, the set of contour points is substantially rectangular in shape.

S2482: from the set of contour points, a second centerline of the mark shape is formed.

S2483: and calculating the difference between the first central line and the second central line to form the deviation of the mark shape from the preset shape.

Specifically, by calculating the difference between the first center line and the second center line, the offset amounts of the two dotted lines constituting the second center line with respect to the corresponding two dotted lines in the first center line can be obtained. Based on the offset, the position of accurate printing can be determined and fed back to the apparatus 100 for adjusting the printing position for adjustment.

The device and the method are characterized in that the bearing component 11 bears a first workpiece and is matched with the printing mechanism to print the medium on the first workpiece to form a second workpiece, then the detection module 30 receives the second workpiece transmitted from the transmission module 20 and forms adjustment information according to the mark shape, and then the adjustment component 12 adjusts the bearing component 11 to a required position according to the adjustment information. Compared with the prior art, the method and the device can detect the second workpiece in real time, selectively adjust the position of the bearing component according to the detection result, feed back and correct timely, consume less time and improve the printing efficiency.

It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application 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. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. The units or computer means recited in the computer means claims may also be implemented by the same unit or computer means, either in software or in hardware. The terms first, second, etc. are used to denote names, but not any particular order.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application and not for limiting, and although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. An apparatus for adjusting a printing position, comprising:

a table, comprising:

the adjusting component is connected with the bearing component;

the transmission module is connected with the workbench;

the detection module is connected with the transmission module and is used for:

receiving the second workpiece transferred from the transmission module;

forming adjustment information according to the mark shape;

2. The apparatus for adjusting a printing position according to claim 1, wherein the detecting module comprises:

a processor coupled to the camera mechanism for:

forming the adjustment information according to the deviation;

3. The apparatus of claim 2, wherein the second workpiece comprises a first centerline of the predetermined shape, the processor further configured to:

forming a second centerline of the marker shape from the set of contour points;

4. The apparatus for adjusting a printing position according to claim 1, wherein the detecting module comprises:

a processor coupled to the camera mechanism for:

splicing the first image and the second image to form a third image;

forming the adjustment information according to the deviation;

5. The apparatus of claim 4, wherein the second workpiece comprises a first centerline of the preset shape, the processor further configured to:

forming a second centerline of the marker shape from the set of contour points;

6. A method of adjusting print positions, comprising:

moving the second workpiece to a detection module;

sending the adjustment information to an adjustment component in the workbench;

7. The method of adjusting a printing position according to claim 6, wherein the step of forming adjustment information includes:

shooting the second workpiece to form a first image;

and forming the adjusting information according to the deviation.

8. The method of adjusting a print position according to claim 7, wherein the second workpiece includes a first center line of the predetermined shape, and the step of calculating the deviation of the mark shape from the predetermined shape includes:

forming a second centerline of the marker shape from the set of contour points;

9. The method of adjusting a printing position according to claim 6, wherein the step of forming adjustment information includes:

moving the second workpiece to a second position;

shooting the second workpiece to form a second image;

splicing the first image and the second image to form a third image;

and forming the adjusting information according to the deviation.

10. The method of adjusting a print position according to claim 9, wherein the second workpiece includes a first center line of the predetermined shape, and the step of calculating the deviation of the mark shape from the predetermined shape includes:

forming a second centerline of the marker shape from the set of contour points;