CN113043721A

CN113043721A - Paperboard printing equipment and printing method thereof

Info

Publication number: CN113043721A
Application number: CN202110267137.3A
Authority: CN
Inventors: 余岳钦; 宋峥朝; 翁华清
Original assignee: Shaoxing Shangyu Huihui Carton Packing Co ltd
Current assignee: Shaoxing Shangyu Huihui Carton Packing Co ltd
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2021-06-29
Anticipated expiration: 2041-03-11
Also published as: CN113043721B

Abstract

The invention provides paperboard printing equipment and a printing method thereof, wherein the paperboard printing equipment comprises a rolling brush component and a printing screen component, wherein the printing screen component is positioned below the rolling brush component; the rolling brush assembly comprises a barrel and a rolling brush wheel, the barrel is divided into a liquid storage cavity and a liquid brushing cavity by a partition plate in the barrel, and the liquid storage cavity and the liquid brushing cavity are communicated with each other through a communication port in the partition plate; the rolling brush wheel is positioned in the brush liquid cavity, a plugging piece is connected to the rolling brush wheel, and the rolling brush wheel can move in the brush liquid cavity to enable the plugging piece to plug the communication opening; wherein, the bottom of the liquid brushing cavity is provided with a liquid outlet, and the rolling brush wheel is rotatably arranged at the liquid outlet. The invention can realize the quantitative supply of printing ink to the printing liquid cavity so as to avoid the ink waste caused by printing failure or excessive printing ink discharge due to excessive oxidation caused by uneven printing or excessive printing ink left on a printing silk screen due to excessive printing ink.

Description

Paperboard printing equipment and printing method thereof

Technical Field

The invention relates to the technical field of printing equipment, in particular to paperboard printing equipment and a printing method thereof.

Background

Machines for printing text and images. Modern printing presses typically consist of mechanisms for plating, inking, stamping, feeding (including folding), etc. The working principle is as follows: the characters and images to be printed are made into printing plate, then it is mounted on the printing machine, then the ink is coated on the position of the characters and images on the printing plate by manual or printing machine, then it is directly or indirectly transferred on the paper or other printing material (such as textile, metal plate, plastics, leather, wood plate, glass and ceramic) so as to reproduce the same printed matter as the printing plate.

The paperboard printing machine is a printing device which first makes the characters and patterns to be printed into a printing plate, and then prints the characters and patterns on the paperboard through technological processes of inking, stamping, transporting and the like, so that the required characters and patterns are printed on the paperboard, and the paperboard is rich in display.

During operation, the paperboard printing machine forms printing plate with the text and image to be printed, and the printing plate is set on the printing machine, and the printing machine is operated by person to apply ink homogeneously to the text and image area on the printing plate and to transfer the ink to corrugated paper board or paper box directly or indirectly to reproduce the print copy identical to that of the printing plate. The inking work of printing machine is by the manual coating of staff, generally can coat the printing ink of great capacity on the screen in advance, saves the coating time, but the inhomogeneous condition of printing that the printing ink too much on the screen can lead to appears, and too much printing ink remains the excessive oxidation that leads to on the printing screen and the printing is inefficacy simultaneously, and too much printing ink coating also can cause the printing ink extravagant.

Disclosure of Invention

In order to solve the technical problems, the invention provides a paperboard printing device which can realize the fixed-quantity supply of printing ink to a printing liquid cavity so as to avoid the waste of the printing ink caused by uneven printing caused by excessive printing ink or excessive oxidation caused by the excessive printing ink left on a printing screen to cause printing failure or excessive printing ink discharge.

The invention adopts the following technical scheme:

a paperboard printing apparatus comprising a roll brush assembly and a printing screen assembly, the printing screen assembly being located below the roll brush assembly;

the rolling brush assembly comprises a barrel and a rolling brush wheel, the barrel is divided into a liquid storage cavity and a liquid brushing cavity by a partition plate in the barrel, and the liquid storage cavity and the liquid brushing cavity are communicated with each other through a communication port in the partition plate; the rolling brush wheel is positioned in the brush liquid cavity, a plugging piece is connected to the rolling brush wheel, and the rolling brush wheel can move in the brush liquid cavity to enable the plugging piece to plug the communication opening;

wherein, the bottom of the liquid brushing cavity is provided with a liquid outlet, and the rolling brush wheel is rotatably arranged at the liquid outlet.

Preferably, the rolling brush wheel rotates and is arranged on the mounting seat, the mounting seat moves along the guide of the sliding grooves on two sides of the brush liquid cavity, and the blocking piece is connected with the mounting seat.

Preferably, the shutoff piece includes connecting rod and shutoff ball, the diameter of shutoff ball is greater than the diameter of intercommunication mouth, the connecting rod runs through the shutoff ball, the shutoff ball with establish through the elastic component between the mount pad and be connected.

Preferably, the blocking ball is connected with a base, the elastic piece is a spring sleeved on the outer side of the connecting rod, and the elastic piece is sealed by a corrugated pipe between the base and the mounting seat.

Preferably, an auxiliary assembly is arranged in the liquid storage cavity, the auxiliary assembly comprises an auxiliary ball and an auxiliary spring, the diameter of the auxiliary ball is larger than that of the communication port, the blocking piece can be in contact with the auxiliary ball, the auxiliary spring is connected with the auxiliary ball, and the auxiliary spring is located in the moving direction of the blocking piece;

wherein the pretightening force of the auxiliary spring enables the auxiliary ball to block the communication port.

Preferably, the auxiliary assembly further comprises a sliding pipe, the axis of the sliding pipe is overlapped with the axis of the communication port, and a gap is reserved between the sliding pipe and the partition plate;

an opening is formed at the bottom of the sliding tube, the auxiliary ball is located at the opening, and the auxiliary spring is located in the sliding tube.

Preferably, the upper end of the connecting rod extends out of the outer side of the blocking ball, and the upper end of the connecting rod can penetrate through the communication port to be in contact with the auxiliary ball.

Preferably, the top of the liquid storage cavity is also provided with a liquid inlet.

Preferably, the rolling brush assembly is connected to an output end of an air cylinder, and the air cylinder drives the rolling brush assembly to move longitudinally;

the air cylinder is arranged on the servo moving mechanism, and the servo moving mechanism drives the air cylinder to move linearly.

Preferably, the servo moving mechanism comprises a support, a sliding rail and a screw rod mechanism, the sliding rail and the screw rod mechanism are supported by the support, the air cylinder is arranged on the sliding rail through a sliding block, and the screw rod mechanism is connected with the sliding block.

The invention also discloses a paperboard printing method, which comprises the following steps,

and (3) ink filling: the rolling brush component is far away from the printing silk screen, and the plugging piece is separated from the communication port;

and (3) ink filling finishing step: the rolling brush component moves downwards until contacting the printing silk screen and reversely pushes the rolling brush wheel to move upwards until the plugging piece plugs the communication opening;

a printing step: the rolling brush component is moved, the rolling brush wheel is driven to rotate by friction force, printing ink in the brush liquid cavity is conveyed to a printing silk screen through the rotation and the movement of the rolling brush wheel, and the printing operation on the paperboard can be completed by covering the whole printing pattern.

Preferably, the method further comprises an initial step, before the step of filling the ink, the initial step: the connecting rod breaks away from the auxiliary ball, and the pretightening force of the auxiliary spring enables the auxiliary ball to block the communication port.

The invention has the beneficial effects that:

when the automatic printing machine works specifically, the air cylinder drives the rolling brush assembly to leave the printing silk screen, and at the moment, the rolling brush assembly is in an initial state, and the blocking piece cannot block the communicating port; after the paperboard is conveyed to the position below the printing silk screen, the air cylinder drives the rolling brush component to move downwards until the rolling brush component contacts the printing silk screen, and reversely pushes the rolling brush wheel to move upwards until the blocking piece blocks the communication opening, and then the printing ink filling operation is finished; finally, in the state, the servo moving mechanism moves the rolling brush assembly, the friction force drives the rolling brush wheel to rotate, printing ink in the brush liquid cavity is conveyed to a printing silk screen through the rotation and the movement of the rolling brush wheel, and the printing operation of the paper board can be completed by covering the whole printing pattern; the printing ink can be supplied to the printing liquid cavity in a fixed amount, so that the ink waste caused by printing failure or excessive printing ink discharge due to excessive oxidation caused by uneven printing caused by excessive printing ink or excessive printing ink left on a printing screen is avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of a roll brush assembly according to the present invention;

FIG. 3 is a sectional view showing the internal structure of a roll brush assembly in example 1 of the present invention;

FIG. 4 is a sectional view showing the internal structure of a roll brush assembly in a printing operation according to embodiment 1 of the present invention;

FIG. 5 is a schematic structural view of the joint of the rolling brush wheel and the chute according to the present invention;

FIG. 6 is a schematic perspective view of a sealing member of the roller brush wheel according to the present invention;

FIG. 7 is a sectional view showing the internal structure of a brush roll assembly in example 4 of the present invention;

FIG. 8 is a sectional view showing the internal structure of a roll brush assembly in an initial state according to example 5 of the present invention;

FIG. 9 is a schematic view showing the internal structure of a roll brush unit filled with ink in example 5 of the present invention;

fig. 10 is a sectional view showing the internal structure of a roll brush unit in a printing operation according to embodiment 5 of the present invention.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

Example 1

As shown in fig. 1 to 6, a paperboard printing apparatus of the present embodiment comprises a roll brush assembly 100 and a printing screen assembly 200, the printing screen assembly 200 being located below the roll brush assembly 100; the printing screen assembly 200 comprises a printing screen 210 and a support 220, the printing screen 210 is fixed by the support 220, the printing screen 210 has a printing pattern thereon, during printing, the paper board is located below the printing screen 210, the rolling brush applies ink to the printing screen 210, and simultaneously, the rolling brush assembly 100 is moved, so that the entire pattern on the printing screen 210 is applied, that is, the paper board printing operation is completed.

Of course, it is generally known to those skilled in the art that an automated operation may be used, for example, the paper board is automatically transported by the transport mechanism 300, and when the paper board is transported below the printing screen 210 and then stops, the roller brush assembly 100 is connected to the output end of the air cylinder 150, and the air cylinder 150 drives the roller brush assembly 100 to move longitudinally; the air cylinder 150 is arranged on the servo moving mechanism 160, and the servo moving mechanism 160 drives the air cylinder 150 to move linearly; the servo moving mechanism 160 comprises a bracket 161, a slide rail 162 and a screw mechanism 163, the slide rail 162 and the screw mechanism 163 are supported by the bracket 161, the air cylinder 150 is arranged on the slide rail 162 through a slide block 151, and the screw mechanism 163 is connected with the slide block 151; the rolling brush assembly 100 is controlled by the cylinder 150 to ascend and descend and the servo moving mechanism 160 to move, so that the automatic operation of the whole equipment is realized, and the working efficiency is greatly improved.

Specifically, the rolling brush assembly 100 comprises a cylinder 110 and a rolling brush wheel 120, printing ink is filled in the cylinder 110 in advance, the rolling brush wheel 120 is located at a liquid outlet S-2 of the cylinder 110, the printing ink is discharged from the liquid outlet S-2, and the coating operation of the printing ink is realized through the rotation and the movement of the rolling brush wheel 120;

the partition board 111 in the cylinder 110 divides the cylinder 110 into a liquid storage cavity P-1 and a liquid brushing cavity P-2, printing ink is pre-stored in the liquid storage cavity P-1, certainly, the liquid storage cavity P-1 is provided with a liquid inlet 113 to facilitate the supplement of the printing ink, the liquid storage cavity P-1 and the liquid brushing cavity P-2 are communicated with each other through a communication port S-1 on the partition board 111, the printing ink enters the liquid brushing cavity P-2 through the communication port S-1, the liquid outlet S-2 is communicated with the liquid brushing cavity P-2, specifically, the liquid brushing cavity P-2 is positioned at the bottom of the liquid brushing cavity P-2, and the rolling brush wheel 120 is positioned in the liquid brushing cavity P-2;

the rolling brush wheel 120 is connected with a blocking piece 130, the rolling brush wheel 120 can move in the liquid brushing cavity P-2 to enable the blocking piece 130 to block the communication port S-1, specifically, the communication port S-1 is positioned right above the rolling brush wheel 120, and the rolling brush wheel 120 can move longitudinally to enable the blocking piece 130 to approach and block the communication port S-1, so that the liquid storage cavity P-1 is isolated from the liquid brushing cavity P-2; the set capacity of the liquid storage cavity P-1 is larger than the capacity of the liquid brushing cavity P-2, the printing ink in the liquid storage cavity P-1 is replenished into the liquid brushing cavity P-2 through the communication port S-1, when the communication port S-1 is sealed by the sealing piece 130, the printing ink replenishing operation is finished, and the printing ink can be supplied into the liquid brushing cavity P-2 in a fixed amount, so that the phenomenon that the printing ink is too much to cause uneven printing or excessive printing ink is left on the printing screen 210 to cause excessive oxidation to cause printing failure or excessive printing ink discharge to cause ink waste is avoided.

During specific operation, the air cylinder 150 drives the roller brush assembly 100 to leave the printing screen 210, and at the moment, the roller brush assembly is in an initial state, and the blocking piece 130 cannot block the communication port S-1; after the paperboard is transported to the position below the printing screen 210, the air cylinder 150 drives the rolling brush assembly 100 to move downwards until contacting the printing screen 210, and reversely pushes the rolling brush wheel 120 to move upwards until the plugging piece 130 plugs the communication port S-1, and then the printing ink filling operation is completed; finally, in this state, the servo moving mechanism 160 moves the roller brush assembly 100, the friction force drives the roller brush wheel 120 to rotate, and the printing ink in the brush liquid chamber P-2 is transported to the printing screen 210 by the rotation and movement of the roller brush wheel 120, so that the printing operation on the paper board can be completed by covering the whole printing pattern.

Example 2

As shown in fig. 1 to fig. 6, the difference between the present embodiment and the above embodiments is that the rolling brush wheel 120 is rotatably disposed on the mounting seat 121, the mounting seat 121 has a U-shaped notch, the rolling brush wheel 120 is located in the U-shaped notch and rotatably connected to two sides of the U-shaped notch, the mounting seat 121 is guided to move along the sliding slots 112 on two sides of the brush liquid cavity P-2, two sides of the mounting seat 121 are respectively provided with a guide block 122 matched with the sliding slots 112, the guide block 122 is guided to move along the sliding slots 112 to define the moving direction of the rolling brush wheel 120, the blocking member 130 is connected to the mounting seat 121, and the blocking member 130 on the mounting seat 121 is driven to guide to move by the guide movement of the mounting seat 121, so as to achieve the purpose of blocking the communication.

Example 3

As shown in fig. 1 to 6, the present embodiment is different from the above embodiments in that the blocking piece 130 includes a connecting rod 131 and a blocking ball 132, the diameter of the blocking ball 132 is greater than that of the communication port S-1, the connecting rod 131 is disposed along the longitudinal direction and fixed on the mounting seat 121, the connecting rod 131 penetrates through the blocking ball 132, the blocking ball 132 can move along the connecting rod 131, the connection between the blocking ball 132 and the mounting seat 121 is established through an elastic piece 133, the roller brush wheel 120 moves upward, the blocking ball 132 contacts the communication port S-1 first, and as the roller brush wheel 120 moves further upward, the communication port S-1 pushes the blocking ball 132 to compress the elastic piece 133 downward to move, so as to maintain the state, and since the elastic piece 133 is in a compressed state, the blocking ball 132 can be ensured to be always in a state of blocking the communication port S-1; that is, in the printing movement process of the roller brush wheel 120, only the printing ink in the liquid brushing cavity P-2 is utilized, and no redundant printing ink enters the liquid brushing cavity P-2 from the liquid storage cavity P-1, and the printing operation is performed by using a fixed amount of printing ink.

Example 4

As shown in fig. 7, the present embodiment is different from the above embodiments in that a base 134 is connected to the blocking ball 132, the elastic member 133 is a spring sleeved outside the connecting rod 131, and the elastic member 133 is sealed by a bellows 135 between the base 134 and the mounting seat 121, so that the possibility that the spring in the bellows 135 contacts printing ink can be reduced, and the service life of the spring, that is, the service life of the entire apparatus can be prolonged.

Example 5

As shown in fig. 8 to 10, the present embodiment is different from the above embodiments in that an auxiliary assembly 140 is disposed in the reservoir chamber P-1, the auxiliary assembly 140 includes an auxiliary ball 141 and an auxiliary spring 142, the diameter of the auxiliary ball 141 is greater than that of the communication port S-1, the blocking member 130 can contact with the auxiliary ball 141, the auxiliary spring 142 establishes a connection with the auxiliary ball 141, and the auxiliary spring 142 is located in the moving direction of the blocking member 130; the pretightening force of the auxiliary spring 142 enables the auxiliary ball 141 to block the communication port S-1; the auxiliary assembly 140 further comprises a sliding pipe 143, the axis of the sliding pipe 143 is overlapped with the axis of the communication port S-1, and a gap is reserved between the sliding pipe 143 and the partition plate 111; an opening is formed at the bottom of the sliding tube 143, the auxiliary ball 141 is positioned at the opening, and the auxiliary spring 142 is positioned in the sliding tube 143; the upper end of the connecting rod 131 extends to the outside of the blocking ball 132, and the upper end of the connecting rod 131 can pass through the communication port S-1 to contact the auxiliary ball 141.

During specific operation, the air cylinder 150 drives the roller brush assembly 100 to leave the printing screen 210, and is in an initial state at the moment, the auxiliary ball 141 blocks the communication opening S-1 due to the pretightening force of the auxiliary spring 142, and the blocking ball 132 is separated from the communication opening S-1; after the paperboard is conveyed to the lower part of the printing screen 210, the air cylinder 150 drives the rolling brush assembly 100 to move downwards until contacting the printing screen 210, reversely pushes the rolling brush wheel 120 to move upwards, the upper end of the connecting rod 131 passes through the communication port S-1 to contact the auxiliary ball 141, pushes the auxiliary ball 141 to be separated from the communication port S-1, meanwhile, the blocking ball 132 is separated from the communication port S-1, namely, the communication port S-1 is in an open state at the moment, the liquid storage cavity P-1 is communicated with the liquid brushing cavity P-2, the printing ink can be filled into the liquid brushing cavity P-2, the state is maintained for a certain time, after the printing ink is filled to a set capacity, the rolling brush assembly 100 is continuously pressed downwards until the blocking piece 130 blocks the communication port S-1, and the printing ink filling operation is completed at the moment; finally, in this state, the servo moving mechanism 160 moves the roller brush assembly 100, the friction force drives the roller brush wheel 120 to rotate, and the printing ink in the brush liquid chamber P-2 is transported to the printing screen 210 by the rotation and movement of the roller brush wheel 120, so that the printing operation on the paper board can be completed by covering the whole printing pattern.

The working principle of the invention is as follows:

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A board printing apparatus, comprising a roller brush assembly (100) and a printing screen assembly (200), the printing screen assembly (200) being located below the roller brush assembly (100);

the rolling brush assembly (100) comprises a cylinder body (110) and a rolling brush wheel (120), the cylinder body (110) is divided into a liquid storage cavity (P-1) and a liquid brushing cavity (P-2) by a partition plate (111) in the cylinder body (110), and the liquid storage cavity (P-1) and the liquid brushing cavity (P-2) are communicated with each other through a communication port (S-1) in the partition plate (111); the rolling brush wheel (120) is positioned in the liquid brushing cavity (P-2), a blocking piece (130) is connected to the rolling brush wheel (120), and the rolling brush wheel (120) can move in the liquid brushing cavity (P-2) to enable the blocking piece (130) to block the communication port (S-1);

a liquid outlet (S-2) is formed in the bottom of the liquid brushing cavity (P-2), and the rolling brush wheel (120) is rotatably arranged at the liquid outlet (S-2).

2. A cardboard printing apparatus according to claim 1, characterized in that the roller brush wheel (120) is rotatably mounted on a mounting base (121), the mounting base (121) is guided along sliding grooves (112) on both sides of the brushing liquid chamber (P-2), and the blocking member (130) is connected to the mounting base (121).

3. A cardboard printing apparatus according to claim 2, characterized in that the blocking piece (130) comprises a connecting rod (131) and a blocking ball (132), the diameter of the blocking ball (132) being larger than the diameter of the communication opening (S-1), the connecting rod (131) penetrating the blocking ball (132), the connection between the blocking ball (132) and the mounting seat (121) being established by means of an elastic piece (133).

4. A paperboard printing apparatus according to claim 3, wherein a base (134) is connected to the blocking ball (132), the elastic member (133) is a spring sleeved on the outer side of the connecting rod (131), and the elastic member (133) is sealed by a bellows (135) between the base (134) and the mounting seat (121).

5. A cardboard printing apparatus according to claim 3 or 4, characterized in that an auxiliary assembly (140) is arranged in the reservoir (P-1), the auxiliary assembly (140) comprising an auxiliary ball (141) and an auxiliary spring (142), the diameter of the auxiliary ball (141) being larger than the diameter of the communication port (S-1), the blocking piece (130) being able to contact the auxiliary ball (141), the auxiliary spring (142) establishing a connection with the auxiliary ball (141), the auxiliary spring (142) being located in the direction of movement of the blocking piece (130);

wherein the pre-tightening force of the auxiliary spring (142) enables the auxiliary ball (141) to block the communication port (S-1).

6. A cardboard printing apparatus according to claim 5, characterized in that said auxiliary assembly (140) further comprises a slide (143), the axis of said slide (143) coinciding with the axis of said communication port (S-1), a gap being left between said slide (143) and said partition (111);

the bottom of the sliding pipe (143) forms an opening, the auxiliary ball (141) is positioned at the opening, and the auxiliary spring (142) is positioned in the sliding pipe (143).

7. A cardboard printing apparatus according to claim 6, characterized in that the upper end of the connecting rod (131) protrudes outside the blocking ball (132), the upper end of the connecting rod (131) being able to pass through the communication opening (S-1) to be in contact with the auxiliary ball (141).

8. A paperboard printing apparatus according to any of claims 1-4, 6 and 7, wherein a liquid inlet (113) is further provided at the top of the liquid storage chamber (P-1).

9. A method of printing paperboard, comprising,

and (3) ink filling: the rolling brush component (100) is far away from the printing screen component (200), and the plugging piece (130) is separated from the communication port (S-1);

and (3) ink filling finishing step: the rolling brush component (100) moves downwards until contacting the printing screen component (200), and pushes the rolling brush wheel (120) upwards in a reverse direction until the plugging piece (130) plugs the communication opening (S-1);

a printing step: and (3) moving the rolling brush component (100), driving the rolling brush wheel (120) to rotate by friction force, conveying the printing ink in the brush liquid cavity (P-2) to the printing silk screen (210) by the rotation and the movement of the rolling brush wheel (120), and covering the whole printing pattern to finish the printing operation of the paper board.

10. A method of printing paperboard as recited in claim 9, further comprising an initial step prior to the step of filling ink, the initial step of: the connecting rod (131) is separated from the auxiliary ball (141), and the auxiliary ball (141) blocks the communication port (S-1) due to the pretightening force of the auxiliary spring (142).