A work station for embossing on a gravure color group

Abstract

The utility model discloses a kind of embossing workstations installed on intaglio color group, including intaglio group driving device and embossing workstation, embossing workstation is installed in the rear of last group intaglio color group, two longitudinal guide rails are longitudinally installed in the rear of wallboard of intaglio group, embossing workstation is fixedly installed after sliding to on-line position along guide rail, the embossing workstation includes vertical rack, female die plate roll and male die plate roll, the intaglio group driving device includes intaglio group driving roller and the inner hub fixed on intaglio group driving roller, second synchronous pulley is connected on the inner hub bearing, first linkage groove is provided on the inner hub, second linkage groove is provided on the second synchronous pulley, synchronous belt is provided between the second synchronous pulley and first synchronous pulley, when not needing embossing work, without removing embossing workstation, first linkage part can be removed from the first linkage groove of inner hub, so that intaglio group driving roller cannot drive embossing workstation to work.

Description

Technical Field

[0001] This utility model relates to the field of printing machinery technology, and in particular to an embossing workstation mounted on a gravure printing ink unit. Background Technology

[0002] In the packaging and printing industry, embossing creates raised and recessed textures on the surface of printed materials, significantly enhancing tactile texture and visual depth, and increasing product added value. However, directly adding a separate embossing workstation faces two constraints: firstly, the entire embossing workstation includes a drive motor, roller system, and control unit, resulting in high costs; secondly, a separate embossing workstation requires a large space, and many existing factories cannot provide expansion space due to the compact layout of their production lines. Therefore, a movable vertical offline embossing workstation for a gravure printing machine, as disclosed in application number 201721229541.7, adds a main drive gear to the main shaft of the printing color unit for transmission supply, driving the embossing workstation to reduce equipment costs and space requirements. However, the aforementioned embossing workstation needs to be dismantled and moved when embossing operations are not required, making it inconvenient to use. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an embossing workstation that can be mounted on a gravure printing color set.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: an embossing workstation installed on a gravure printing unit, comprising a gravure printing unit drive device and an embossing workstation. The embossing workstation includes a vertical frame and embossing rollers. The embossing rollers include a gravure die roller and a relief die roller, which are mounted parallel to each other on the vertical frame. A first synchronous pulley is provided at one end of the upper embossing roller. The gravure printing unit drive device includes a gravure printing unit drive roller and an inner hub fixed on the gravure printing unit drive roller. A second synchronous pulley is connected to the inner hub by a bearing. A first linkage groove is provided on the inner hub, and a second linkage groove is provided on the second synchronous pulley. The inner hub drives the second synchronous pulley through a linkage component. The linkage component is "n"-shaped and includes a first linkage part and a second linkage part. The first linkage part is inserted into the first linkage groove, and the second linkage part is inserted into the second linkage groove. A second linkage part mounting groove is provided on the second synchronous pulley, and a synchronous belt is provided between the second synchronous pulley and the first synchronous pulley.

[0005] Furthermore, a fixing ring is provided on the second linkage part, the fixing ring is in contact with the surface of the second synchronous pulley, the fixing ring is provided with fixing holes, and the surface of the second synchronous pulley is provided with a plurality of fixing screw holes around the second linkage groove.

[0006] Furthermore, the concave die roller and the convex die roller are respectively provided with linkage gears on the same side, and the linkage gears of the concave die roller and the convex die roller mesh with each other.

[0007] Furthermore, a locking mechanism is provided between the vertical frame and the linkage gear.

[0008] Furthermore, the locking mechanism includes a locking bar hinged to the vertical frame, the locking bar having a rack that can engage with a linkage gear, and a limit plate being provided on the vertical frame.

[0009] Furthermore, guide rollers are respectively provided on the front and rear sides of the vertical frame, and the height of the guide rollers on both sides of the vertical frame is the same.

[0010] Preferably, a tensioning wheel can be installed on the gravure printing unit.

[0011] Furthermore, sliding grooves are provided on the left and right sides of the vertical frame, and the concave die roller and the convex die roller are installed on the sliding grooves. A slider is provided between the concave die roller and the convex die roller. The concave die roller is slidably installed in the sliding groove below the slider, and the convex die roller is fixedly installed in the sliding groove above the slider. A pressure adjustment mechanism is installed on the convex die roller, and a pressure cylinder is provided below the concave die roller.

[0012] Preferably, a fully automatic correction frame is provided at the rear of the gravure printing color group, and the correction frame is equipped with a photoelectric sensor.

[0013] The beneficial effects of this utility model are as follows: 1. The gravure printing unit drive device drives the embossing workstation, reducing equipment costs and reducing the space occupied by the embossing workstation by using a vertical frame; 2. When embossing is required, the linkage is installed, and the gravure printing unit drive device drives the second synchronous belt pulley to rotate through the linkage, and drives the embossing workstation through the synchronous belt transmission. When embossing is not required, the linkage can be pulled out, and the embossing workstation does not need to be removed. Only the paper feeding route through the embossing unit needs to be adjusted, and the original ink trough and printing plate can be used directly. The gravure printing unit can work normally. When the inner hub rotates, it will not drive the second synchronous belt to rotate, eliminating energy loss and mechanical wear under unnecessary working conditions. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of an embossing workstation.

[0015] Figure 2 This is a schematic diagram of the drive unit of a gravure printing machine.

[0016] Figure 3 This is a schematic diagram of the preferred online assembly and paper feeding structure of this utility model.

[0017] In the diagram: 1. Embossing workstation; 2. Gravure printing unit drive unit; 3. Vertical frame; 31. First synchronous pulley; 32. Longitudinal guide rail; 33. Locking strip; 34. Pressurizing cylinder; 35. Pressure regulating mechanism; 36. Limiting plate; 37. Slider; 4. Convex die roller; 5. Concave die roller; 6. Second synchronous pulley; 61. Second linkage groove; 62. Second linkage part mounting groove; 63. Second linkage groove; 7. Inner hub; 71. First linkage groove; 8. Linkage component; 81. Second linkage part; 82. First linkage part; 83. Fixing ring; 9. Linkage gear. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Example: An embossing workstation installed on a gravure printing color group includes a gravure printing unit drive device and an embossing workstation. The embossing workstation is installed at the rear of the last gravure printing color group. Two longitudinal guide rails 32 are installed longitudinally behind the wall panel of the gravure printing unit. The embossing workstation 1 slides along the guide rails to the online position and is then fixedly installed, which is consistent with the existing printing station installation method. The embossing workstation 1 includes a vertical frame 3 and embossing rollers. The embossing rollers include a gravure die roller 5 and a relief die roller 4, which are mounted vertically parallel to each other on the vertical frame. A first synchronous pulley 41 is provided at one end of the relief die roller 4 located at the top. The gravure printing unit drive 2 device includes a gravure printing unit drive roller and an inner hub 7 fixed on the gravure printing unit drive roller. The gravure printing unit drive roller is driven by a servo motor on the gravure color group. A second synchronous pulley 6 is connected to the inner hub 7 by a bearing. A first linkage groove 71 is provided on the inner hub 7, and a second linkage groove 61 is provided on the second synchronous pulley 6. The inner hub 7 drives the second synchronous pulley 6 to rotate through a linkage component 8. The linkage component 8 is "n"-shaped and includes a first linkage part 82 and a second linkage part 81. The first linkage part 82 is inserted into the first linkage groove 71, and the second linkage part 81 is inserted into the second linkage groove 61. The second synchronous pulley 6 is provided with a second linkage part mounting groove 62. A synchronous belt 3 is provided between the second synchronous pulley 6 and the first synchronous pulley 31. When the gravure printing unit drive roller rotates, it drives the second synchronous pulley 6 to rotate through the linkage part 8, and then provides power to the gravure die roller 5 and the relief die roller 4 of the embossing workstation 1 through the synchronous belt 3. When embossing is not required, there is no need to remove the embossing workstation. The first linkage part 82 can be removed from the first linkage groove 71 of the inner hub 7, so that the gravure printing unit drive roller cannot drive the embossing workstation 1 to work, eliminating energy loss and mechanical wear under unnecessary working conditions. The removed first linkage part 82 can be placed into the second linkage part mounting groove 62.

[0020] Furthermore, a fixing ring 83 is provided on the second linkage part 81. The fixing ring 83 contacts the surface of the second synchronous pulley 6. The fixing ring 83 is provided with two fixing holes 831. The surface of the second synchronous pulley 6 is provided with four fixing screw holes 61 around the second linkage groove 71. When the first linkage part 82 is inserted into the first linkage groove 71, two fixing screw holes 63 are located directly below the fixing holes 831. When the first linkage part 82 is inserted into the second linkage part mounting groove 71, the other two fixing screw holes 63 are located directly below the fixing holes 83. The linkage part 8 is installed on the fixing screw holes 63 by screws to prevent the linkage part 8 from falling off during operation.

[0021] Furthermore, the concave die roller 5 and the convex die roller 4 are respectively provided with linkage gears 9 on the same side. The linkage gears of the concave die roller and the convex die roller mesh with each other, and the convex die roller can drive the concave die roller.

[0022] Furthermore, a locking mechanism is provided between the vertical frame 3 and the linkage gear 9.

[0023] Furthermore, the locking mechanism includes a locking bar 33 hinged to the vertical frame. The locking bar is equipped with a rack, which can be engaged with a linkage gear 9. The vertical frame 3 is also equipped with a limiting plate 36. When embossing is not required, the locking bar 33 can be rotated to engage the rack with the linkage gear 9, preventing the linkage gear 9 from rotating and avoiding the concave die roller 5 and convex die roller 4 from spinning freely. When embossing is required, the locking bar 33 can be rotated to disengage it from the linkage gear 9. The limiting plate 36 can prevent the locking bar 33 from touching the working concave die roller 5 and convex die roller 4.

[0024] Furthermore, guide rollers 31 are respectively provided on the front and rear sides of the vertical frame 3. The height of the guide rollers 31 on both sides of the vertical frame is the same, and the height of the bottom of the guide roller 31 is close to the height of the bottom of the embossing roller. During embossing, this can reduce the contact area between the paper and the embossing roller, and reduce the adverse effects on the ink caused by the friction of the embossing roller.

[0025] Furthermore, a tensioning wheel 7 can be installed on the gravure printing unit. The tensioning wheel 7 contacts the synchronous belt 3, and the synchronous belt 3 is tensioned by the tensioning wheel 7, so that the transmission can be smooth.

[0026] Preferably, the vertical frame 3 is provided with sliding grooves on the left and right sides, the concave die roller 5 and the convex die roller 4 are installed on the sliding grooves, a slider 37 is provided between the concave die roller 5 and the convex die roller 4, the concave die roller 5 is slidably installed in the sliding groove below the slider 37, the convex die roller 4 is fixedly installed in the sliding groove above the slider 37, a pressure adjusting mechanism 35 is installed on the convex die roller, and a pressure cylinder 34 is provided below the concave die roller.

[0027] Preferably, a fully automatic alignment frame 8 can be provided at the rear of the gravure printing color group. The alignment frame is equipped with a photoelectric sensor. The fully automatic alignment frame 8 is an existing product that can ensure lateral registration.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An embossing workstation mounted on a gravure printing unit, comprising a gravure printing unit drive device and an embossing workstation, the embossing workstation comprising a vertical frame and embossing rollers, the embossing rollers comprising a gravure die roller and a relief die roller, the gravure die roller and the relief die roller being mounted vertically and parallel to each other on the vertical frame, characterized in that... A first synchronous pulley is provided at one end of the upper embossing roller. The gravure printing unit drive device includes a gravure printing unit drive roller and an inner hub fixed on the gravure printing unit drive roller. A second synchronous pulley is connected to the inner hub by a bearing. A first linkage groove is provided on the inner hub, and a second linkage groove is provided on the second synchronous pulley. The inner hub drives the second synchronous pulley through a linkage component. The linkage component is "n"-shaped and includes a first linkage part and a second linkage part. The first linkage part is inserted into the first linkage groove, and the second linkage part is inserted into the second linkage groove. A second linkage part mounting groove is provided on the second synchronous pulley, and a synchronous belt is provided between the second synchronous pulley and the first synchronous pulley.

2. The embossing workstation mounted on a gravure printing ink set according to claim 1, characterized in that... The second linkage part is provided with a fixing ring, which contacts the surface of the second synchronous pulley. The fixing ring is provided with fixing holes, and the surface of the second synchronous pulley is provided with a number of fixing screw holes around the second linkage groove.

3. An embossing workstation mounted on a gravure printing ink set according to claim 1, characterized in that... The concave die roller and the convex die roller are respectively provided with linkage gears on the same side, and the linkage gears of the concave die roller and the convex die roller mesh with each other.

4. An embossing workstation mounted on a gravure printing ink set according to claim 1, characterized in that... A locking mechanism is provided between the vertical frame and the linkage gear.

5. An embossing workstation mounted on a gravure printing ink set according to claim 4, characterized in that... The locking mechanism includes a locking bar hinged to the vertical frame, the locking bar having a rack that can engage with a linkage gear, and a limit plate on the vertical frame.

6. An embossing workstation mounted on a gravure printing ink set according to claim 1, characterized in that... The vertical frame is equipped with paper guide rollers on both the front and rear sides, and the height of the paper guide rollers on both sides of the vertical frame is the same.

Images