Flexographic printing machine

Abstract

A flexographic printing machine comprises a reticle roller, an operation side reticle roller support arranged at one end of the reticle roller, a transmission side reticle roller support arranged at the other end of the reticle roller, a plate roller, an operation side plate roller support arranged at one end of the plate roller and a transmission side plate roller support arranged at the other end of the plate roller. A first movable sliding seat and a first driving mechanism for driving the first movable sliding seat to deviate from the network cable roller are arranged on the operation side network cable roller support; a third movable sliding seat and a third driving mechanism for driving the third movable sliding seat to move along the axial direction are arranged on the transmission side network cable roller support; a fourth movable sliding seat and a fourth driving mechanism for driving the fourth movable sliding seat to deviate from the reticle roller are arranged on the operation side plate roller support, and a sixth movable sliding seat and a sixth driving mechanism for driving the sixth movable sliding seat to move in the axial direction are arranged on the transmission side plate roller support. Manual operation is converted into automatic operation, so that the working efficiency can be effectively improved, and the preparation time is shortened.

Description

Technical Field

[0001] This utility model relates to the field of printing press technology, and in particular to a flexographic printing press. Background Technology

[0002] Flexographic printing is a commonly used printing method in packaging printing equipment. The advantages of flexographic printing are: 1. It has good printing applicability, capable of printing on various types of materials, such as paper, plastic, and aluminum foil; 2. The printing process of flexographic printing machines is relatively simple, easy to operate, and readily automated; 3. The printed materials exhibit rich color reproduction and clear images.

[0003] The main components of flexographic printing consist of the printing roller, screen printing roller, pressure roller, and doctor blade. Currently, most printing rollers and screen printing rollers adopt a sleeve-type structure, requiring replacement whenever the printed product is changed. The specific process involves the printing roller and screen printing roller returning to their initial positions after printing. At this point, the shaft ends of the printing roller and screen printing roller are fixed on the drive side. The operating side support is then manually pulled axially out. After disengaging from the support position, the support is turned to the side to create space for the sleeves to retract. The printing roller sleeve and screen printing roller sleeve are then removed separately for replacement. Manual operation is labor-intensive, and the preparation time required for replacing the printing roller and screen printing roller is relatively long. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a flexographic printing machine that converts manual operation into automatic operation, which can effectively improve work efficiency and shorten preparation time.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a flexographic printing machine, including a screen roller, an operating-side screen roller support at one end of the screen roller, a transmission-side screen roller support at the other end of the screen roller, a plate roller, an operating-side plate roller support at one end of the plate roller, and a transmission-side plate roller support at the other end of the plate roller. The operating-side screen roller support is provided with a first movable slide and a first driving mechanism that drives the first movable slide to deviate from the screen roller. One end of the screen roller is pivotally connected to the first movable slide. The transmission-side screen roller support is provided with a second movable slide and a second driving mechanism that drives the second movable slide to move in a direction perpendicular to and axially. The second movable slide is provided with a third movable slide and a mechanism that drives the third movable slide to move along the axial direction. The third driving mechanism moves the screen roller, with the other end of the screen roller pivotally connected to the third movable slide. The third movable slide is equipped with a screen roller drive motor for driving the screen roller. The operating side plate roller support is equipped with a fourth movable slide and a fourth driving mechanism for driving the fourth movable slide away from the screen roller. One end of the plate roller is pivotally connected to the fourth movable slide. The transmission side plate roller support is equipped with a fifth movable slide and a fifth driving mechanism for driving the fifth movable slide to move in a direction perpendicular to and axially. The fifth movable slide is equipped with a sixth movable slide and a sixth driving mechanism for driving the sixth movable slide to move axially. The other end of the plate roller is pivotally connected to the sixth movable slide, and the sixth movable slide is equipped with a plate roller drive motor for driving the plate roller. The automatic flexographic printing plate sleeve changing process is as follows: After the printing task is completed, the equipment stops, and the plate roller and screen roller return to their initial positions, leaving a certain gap between them. Pressing the "Prepare to Change Sleeve" button activates the third drive mechanism on the drive-side screen roller support. This drives the third movable slide axially, disengaging the screen roller's operating side shaft from the operating side support. Simultaneously, the sixth drive mechanism on the drive-side plate roller support drives the sixth movable slide axially, disengaging the plate roller's operating side shaft from the operating side support. Finally, the first drive mechanism on the operating side screen roller support drives the first movable slide to move to one side to create space, and simultaneously, the fourth drive mechanism on the operating side plate roller support drives the fourth movable slide to move to one side to create space. Once sufficient space is created, the sleeve changing operation can begin.

[0006] As an improvement, the first driving mechanism includes a first threaded sleeve disposed on a first movable slide, a first screw cooperating with the first threaded sleeve, and a first motor driving the first screw. The operating side wire roller support is provided with a first slide rail perpendicular to the wire roller, and the first movable slide cooperates with the first slide rail.

[0007] As an improvement, the second drive mechanism includes a second threaded sleeve disposed on the second movable slide, a second screw cooperating with the second threaded sleeve, and a second motor driving the second screw. The transmission side wire roller support is provided with a second slide rail perpendicular to the wire roller, and the second movable slide cooperates with the second slide rail.

[0008] As an improvement, the third drive mechanism includes a third threaded sleeve disposed on the second movable slide, a third screw cooperating with the third threaded sleeve, and a third motor driving the third screw. The second movable slide is provided with a third slide rail parallel to the wire roller, and the third movable slide cooperates with the third slide rail.

[0009] As an improvement, the fourth drive mechanism includes a fourth threaded sleeve on the fourth movable slide, a fourth screw that cooperates with the fourth threaded sleeve, and a fourth motor that drives the fourth screw. The operating side plate roller support is provided with a fourth slide rail perpendicular to the plate roller, and the fourth movable slide cooperates with the fourth slide rail.

[0010] As an improvement, the fifth drive mechanism includes a fifth threaded sleeve disposed on the fifth movable slide, a fifth screw cooperating with the fifth threaded sleeve, and a fifth motor driving the fifth screw. The transmission side plate roller support is provided with a fifth slide rail perpendicular to the plate roller, and the fifth movable slide cooperates with the fifth slide rail.

[0011] As an improvement, the sixth drive mechanism includes a sixth threaded sleeve disposed on the fifth movable slide, a sixth screw cooperating with the sixth threaded sleeve, and a sixth motor driving the sixth screw. The fifth movable slide is provided with a sixth slide rail parallel to the printing roller, and the sixth movable slide cooperates with the sixth slide rail.

[0012] The beneficial effects of this utility model compared with the prior art are:

[0013] Multiple drive mechanisms are installed to enable axial and lateral movement of the screen roller and printing roller, allowing space for the operating side shaft heads of the screen roller and printing roller to automatically change the sleeve, which can effectively improve work efficiency and shorten preparation time. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a flexographic printing roller.

[0015] Figure 2 This is a diagram showing the relative positions of the screen roller and the printing roller when the machine is stopped. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] like Figure 1 , 2 As shown, a flexographic printing press includes a screen roller 17, an operating side screen roller support at one end of the screen roller 17, a drive side screen roller support at the other end of the screen roller 17, a printing plate 4, an operating side printing plate roller support 1 at one end of the printing plate 4, and a drive side printing plate roller support 8 at the other end of the printing plate 4.

[0018] like Figure 2 As shown, the operating side of the screen roller support is provided with a first movable slide 12 and a first driving mechanism for driving the first movable slide 12 to deviate from the screen roller. One end of the screen roller 17 is pivotally connected to the first movable slide 12 via a bearing. The first driving mechanism includes a first threaded sleeve 14 provided on the first movable slide 12, a first screw 13 cooperating with the first threaded sleeve 14, and a first motor 15 driving the first screw 13. The operating side of the screen roller support is provided with a first slide rail perpendicular to the screen roller, and the first movable slide 12 cooperates with the first slide rail. The transmission side of the screen roller support is provided with a second movable slide and a second driving mechanism for driving the second movable slide to move in the vertical and axial directions. The second driving mechanism includes a second threaded sleeve provided on the second movable slide, a second screw cooperating with the second threaded sleeve, and a second motor driving the second screw. The transmission side of the screen roller support is provided with a second slide rail perpendicular to the screen roller, and the second movable slide cooperates with the second slide rail. The second movable slide is provided with a third movable slide and a third drive mechanism for driving the third movable slide to move axially. The third drive mechanism includes a third threaded sleeve on the second movable slide, a third screw cooperating with the third threaded sleeve, and a third motor driving the third screw. The second movable slide is provided with a third slide rail parallel to the screen roller, and the third movable slide cooperates with the third slide rail. The other end of the screen roller is pivotally connected to the third movable slide via a bearing, and the third movable slide is provided with a screen roller drive motor for driving the screen roller.

[0019] like Figure 1 , 2As shown, the operating side plate roller support 1 is provided with a fourth movable slide 3 and a fourth drive mechanism for driving the fourth movable slide 3 away from the screen roller. One end of the plate roller 4 is pivotally connected to the fourth movable slide 3 via a bearing. The fourth drive mechanism includes a fourth threaded sleeve 9 on the fourth movable slide 3, a fourth screw 2 cooperating with the fourth threaded sleeve 9, and a fourth motor 18 driving the fourth screw 2. The operating side plate roller support 1 is provided with a fourth slide rail perpendicular to the plate roller, and the fourth movable slide 3 cooperates with the fourth slide rail. The transmission side plate roller support 8 is provided with a fifth movable slide 5 and a fifth drive mechanism for driving the fifth movable slide 5 to move in the vertical and axial directions. The fifth drive mechanism includes a fifth threaded sleeve 19 on the fifth movable slide 5, a fifth screw 2 cooperating with the fifth threaded sleeve 19, and a fifth motor 18 driving the fifth screw 2. The transmission side plate roller support 8 is provided with a fifth slide rail perpendicular to the plate roller 4, and the fifth movable slide 5 cooperates with the fifth slide rail. The fifth movable slide 5 is provided with a sixth movable slide 7 and a sixth drive mechanism for driving the sixth movable slide 7 to move axially. The sixth drive mechanism includes a sixth threaded sleeve 9 provided on the fifth movable slide 5, a sixth screw 10 cooperating with the sixth threaded sleeve 9, and a sixth motor 11 driving the sixth screw 10. The fifth movable slide 5 is provided with a sixth slide rail parallel to the printing roller 4, and the sixth movable slide 7 cooperates with the sixth slide rail. The other end of the printing roller 4 is pivotally connected to the sixth movable slide 7 via a bearing, and the sixth movable slide 7 is provided with a printing roller drive motor 9 for driving the printing roller.

[0020] The automatic flexographic printing plate sleeve changing process is as follows: After the printing task is completed, the equipment stops, and the plate roller and screen roller return to their initial positions, leaving a certain gap between them. Pressing the "Prepare to Change Sleeve" button activates the third drive mechanism on the drive-side screen roller support. This drives the third movable slide axially, disengaging the screen roller's operating side shaft from the operating side screen roller support. Simultaneously, the sixth drive mechanism on the drive-side plate roller support 8 drives the sixth movable slide axially, disengaging the plate roller's operating side shaft from the operating side plate roller support 1. Finally, the first drive mechanism on the operating side screen roller support drives the first movable slide to move to one side to create space. Simultaneously, the fourth drive mechanism on the operating side plate roller support 1 drives the fourth movable slide to move to one side to create space. After sufficient space is created, the sleeve changing action can begin. The screen roller and plate roller move in the same way.

Claims

1. A flexographic printing press, comprising a screen roller, an operating-side screen roller support disposed at one end of the screen roller, a drive-side screen roller support disposed at the other end of the screen roller, a plate roller, an operating-side plate roller support disposed at one end of the plate roller, and a drive-side plate roller support disposed at the other end of the plate roller, characterized in that: The operating side of the screen roller support is provided with a first movable slide and a first drive mechanism for driving the first movable slide to deviate from the screen roller. One end of the screen roller is pivotally connected to the first movable slide. The transmission side of the screen roller support is provided with a second movable slide and a second drive mechanism for driving the second movable slide to move in a direction perpendicular to and axially. The second movable slide is provided with a third movable slide and a third drive mechanism for driving the third movable slide to move axially. The other end of the screen roller is pivotally connected to the third movable slide. The third movable slide is provided with a screen roller drive mechanism for driving the screen roller. The operating side of the printing roller support is provided with a fourth movable slide and a fourth drive mechanism for driving the fourth movable slide to deviate from the screen roller. One end of the printing roller is pivotally connected to the fourth movable slide. The transmission side of the printing roller support is provided with a fifth movable slide and a fifth drive mechanism for driving the fifth movable slide to move in the direction perpendicular to and axially. The fifth movable slide is provided with a sixth movable slide and a sixth drive mechanism for driving the sixth movable slide to move in the axial direction. The other end of the printing roller is pivotally connected to the sixth movable slide. The sixth movable slide is provided with a printing roller drive motor for driving the printing roller.

2. The flexographic printing press according to claim 1, characterized in that: The first driving mechanism includes a first threaded sleeve disposed on a first movable slide, a first screw cooperating with the first threaded sleeve, and a first motor driving the first screw. The operating side wire roller support is provided with a first slide rail perpendicular to the wire roller, and the first movable slide cooperates with the first slide rail.

3. A flexographic printing press according to claim 1, characterized in that: The second drive mechanism includes a second threaded sleeve mounted on a second movable slide, a second screw cooperating with the second threaded sleeve, and a second motor driving the second screw. The transmission side wire roller support is provided with a second slide rail perpendicular to the wire roller, and the second movable slide cooperates with the second slide rail.

4. A flexographic printing press according to claim 1, characterized in that: The third driving mechanism includes a third threaded sleeve mounted on the second movable slide, a third screw cooperating with the third threaded sleeve, and a third motor driving the third screw. The second movable slide is provided with a third slide rail parallel to the wire roller, and the third movable slide cooperates with the third slide rail.

5. A flexographic printing press according to claim 1, characterized in that: The fourth drive mechanism includes a fourth threaded sleeve mounted on a fourth movable slide, a fourth screw cooperating with the fourth threaded sleeve, and a fourth motor driving the fourth screw. The operating side plate roller support is provided with a fourth slide rail perpendicular to the plate roller, and the fourth movable slide cooperates with the fourth slide rail.

6. A flexographic printing press according to claim 1, characterized in that: The fifth drive mechanism includes a fifth threaded sleeve mounted on a fifth movable slide, a fifth screw cooperating with the fifth threaded sleeve, and a fifth motor driving the fifth screw. The transmission side plate roller support is provided with a fifth slide rail perpendicular to the plate roller, and the fifth movable slide cooperates with the fifth slide rail.

7. A flexographic printing press according to claim 1, characterized in that: The sixth driving mechanism includes a sixth threaded sleeve on the fifth movable slide, a sixth screw that cooperates with the sixth threaded sleeve, and a sixth motor that drives the sixth screw. The fifth movable slide is provided with a sixth slide rail parallel to the printing roller, and the sixth movable slide cooperates with the sixth slide rail.

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