Auxiliary pasting device and method for cylinder printing plate for flexographic printing

Abstract

The invention relates to the technical field of printing auxiliary tools, in particular to an auxiliary pasting device and method for a cylinder printing plate for flexographic printing. The auxiliary pasting device comprises a rack, a display amplification unit is installed on the rack, and a printing cylinder is rotationally connected to the rack and located in a camera shooting area of the display amplification unit; the adjusting frame is connected with the machine frame, a containing frame is rotationally connected to the adjusting frame, the rotating axis of the containing frame is parallel to the rotating axis of the printing cylinder, and a positioning area used for containing a flexible printing plate is formed on one side of the containing frame; the adjusting and aligning unit is used for enabling the placing frame to move in the axial direction of the printing cylinder, the adjusting and aligning unit is connected with the rack, and the adjusting and aligning unit is connected with the placing frame; the device has the effects that the pasting efficiency and pasting alignment precision of the flexible printing plate are improved, the influence of human factors such as the proficiency of operators on the pasting precision of the flexible printing plate is reduced, and the later cigarette case printing quality is improved.

Description

Technical Field

[0001] This application relates to the field of printing auxiliary tooling technology, and in particular to a roller plate auxiliary pasting device and method for flexographic printing. Background Technology

[0002] Packaging printing refers to printing specific content such as product name, production location, and production date on a substrate. It generally requires a complete process including design, plate making, printing, drying and finishing, and surface treatment. Cigarette box packaging printing also needs to go through the above steps. Specifically, before printing, a flexible printing plate needs to be fixed onto the printing cylinder.

[0003] In existing technology, the printing cylinder is usually removed from the printing equipment first, and then placed on an adhesive bonding fixture for operation. The adhesive bonding fixture includes a frame, multiple cameras, and a display screen. At this time, the outer periphery of the printing cylinder has an adhesive coating that can bond and fix it to the flexographic printing plate. During fixing, the printing cylinder is first installed on the frame, and at this time the printing cylinder is in a rotatable state. Then, a separator film that has a weak adhesion to the adhesive coating is first applied to the printing cylinder, so that the separator film is wrapped around the printing cylinder. At this time, a gap is left between the two ends of the separator film for the adhesive coating to leak out. Then, the operator manually adjusts the position of the flexographic printing plate and sticks one end of it to the gap. At this time, the separator film is between the printing cylinder and the flexographic printing plate. The separator film is gradually peeled off, and then the flexographic printing plate is bonded to the printing cylinder. Finally, the printing cylinder and the flexographic printing plate are installed as a whole on the printing equipment for cigarette box printing.

[0004] Regarding the aforementioned technologies, when performing the lamination operation of flexible printing plates, the operator needs to observe the magnified image captured by the camera on the display screen, and first adjust the position of the flexible printing plate according to the magnified image until the flexible printing plate and the printing cylinder are aligned before laminating the flexible printing plate and the printing cylinder. The efficiency of the entire operation process is not only affected by the operator's proficiency, but also there is a possibility of secondary deviation in the lamination accuracy during the alignment process. Summary of the Invention

[0005] In order to ensure the bonding efficiency and accuracy of flexographic printing plates, this application provides an auxiliary bonding device and method for flexographic printing cylinder printing plates.

[0006] The technical solution provided in this application for an auxiliary pasting device and method for flexographic printing cylinders adopts the following: In a first aspect, this application provides an auxiliary device for pasting roller printing plates for flexible printing.

[0007] A roller printing plate auxiliary pasting device for flexographic printing includes: A frame on which a display magnification unit is mounted, and a printing cylinder is rotatably connected to the frame and located in the camera area of ​​the display magnification unit; An adjustment frame is connected to the machine frame, and a placement frame is rotatably connected to the adjustment frame. The rotation axis of the placement frame is parallel to the rotation axis of the printing cylinder, and a positioning area for placing a flexible printing plate is formed on one side of the placement frame. An adjustment alignment unit for moving the placement frame along the axial direction of the printing cylinder, the adjustment alignment unit being connected to the frame and the placement frame.

[0008] By adopting the above technical solution, the printing cylinder is removed from the printing equipment and installed on the frame; then the flexographic printing plate is placed into the positioning area on the placement frame; subsequently, the placement frame is rotated so that one side of the placement frame is close to the printing cylinder, and then, according to the magnified image projected by the display magnification unit, the relative position of the placement frame and the printing cylinder is adjusted by adjusting the alignment unit until the two are aligned; then, force is applied to the placement frame again so that one end of the flexographic printing plate contacts the printing cylinder, and then the printing cylinder is rotated, and the flexographic printing plate is then pasted onto the periphery of the printing cylinder until the flexographic printing plate is pasted. The designed flexographic printing cylinder printing plate auxiliary pasting device is conveniently used as a display magnification device through the frame. The mounting base for the unit and adjustment frame, through the display magnification unit, can magnify and display the alignment status of the reference lines on the printing cylinder and the placement frame, thus facilitating operator observation and operation. The adjustment frame serves as the base for rotating the placement frame, and the placement frame serves as a quick positioning structure for the flexographic printing plate. The adjustment alignment unit can change the relative position of the placement frame and the printing cylinder along the axis of the printing cylinder, thereby changing the relative position of the flexographic printing plate and the printing cylinder. This improves the efficiency and alignment accuracy of flexographic printing plate pasting, reduces the impact of human factors such as operator skill level on the accuracy of flexographic printing plate pasting, and improves the quality of subsequent cigarette box printing.

[0009] In one specific implementation, the adjustment frame includes: The mounting part is rotatable relative to the placement frame via a rotating shaft, and the adjustment and alignment unit is located on the mounting part; The telescopic part is connected to the frame and the mounting part, and is used to move the mounting part in a horizontal direction and perpendicular to the axis of the printing cylinder.

[0010] By adopting the above technical solution, the designed adjustment frame can change the distance between the mounting part and the central axis of the printing cylinder through the telescopic part, thereby facilitating the free rotation of the mounting part or the fitting of the placement frame and the printing cylinder. The mounting part can serve as the rotating mounting base for the placement frame.

[0011] In one specific implementation, the rotating shaft is rotatably connected to the mounting part, and the placement frame is slidably connected to the rotating shaft along the axial direction of the printing cylinder.

[0012] By adopting the above technical solution, the designed rotating shaft that is rotatably connected to the mounting part and slides relative to the placement frame can easily decompose the rotation and sliding of the placement frame into two levels, avoiding the situation where the placement frame itself rotates relative to the rotating shaft and also needs to move along the axial direction of the rotating shaft.

[0013] In one specific implementation, the adjustment alignment unit includes: The push bar has a groove along its own axial direction on the rotating shaft for the push bar to pass through, and the push bar is connected to one side of the placement frame; An adjusting screw is provided, the rotating shaft is hollow, the adjusting screw extends into and is rotatably connected to the rotating shaft, and the adjusting screw is threadedly connected to the push bar.

[0014] By adopting the above technical solution, the designed adjustment and alignment unit can change the position of the push bar along the axial direction of the rotation axis by adjusting the screw and the strip groove. This changes the position of the placement frame by pushing the push bar, thereby achieving the position adjustment of the placement frame. Furthermore, the position adjustment of the placement frame is completed by turning the adjusting screw. No secondary deviation will occur during the subsequent rotation of the placement frame towards the printing cylinder, further improving the installation accuracy of the flexible printing plate.

[0015] In one specific implementation, an abutment strip is inserted through the strip groove, and both the abutment strip and the push strip abut against the placement frame, and the abutment strip is connected to the rotating shaft by a spring.

[0016] By adopting the above technical solution, the designed abutment strip and spring can work together to ensure that the placement frame and the push strip are always in contact.

[0017] In one specific implementation, a locking pin is slidably connected to the mounting part, and a through hole is provided on the rotating shaft for the locking pin to be inserted. When the locking pin is inserted into the through hole, the placement frame is in a horizontal state and the positioning area faces upward.

[0018] By adopting the above technical solution, the locking pin and the through hole on the rotating shaft are designed to fix the position of the placement frame, which makes it easier for the operator to place the flexible printing plate into the positioning area.

[0019] In one specific implementation, the edge of the placement frame is integrally formed with a flange to form a positioning area adapted to the flexible printing plate, and an inlet and outlet are provided on one side of the positioning area, and the depth of the positioning area on the placement frame is less than the thickness of the flexible printing plate.

[0020] By adopting the above technical solution, a positioning area with an inlet and outlet at one end, formed by three flanges and with a depth less than the thickness of the flexographic printing plate, is designed, which allows operators to quickly and conveniently fix the position of the flexographic printing plate.

[0021] In one specific implementation, a bonding roller is rotatably connected to the placement frame via a support frame. The bonding roller is rotatably connected to the support frame, and when one end of the flexible printing plate abuts against the end flange of the placement frame, the other end contacts the bonding roller.

[0022] By adopting the above technical solution, the designed support frame and bonding roller can achieve a tighter bonding between the flexible printing plate and the printing cylinder when transferring the flexible printing plate to the printing cylinder, thereby improving the bonding quality of the flexible printing plate.

[0023] In one specific implementation, a torsion bar is rotatably connected to the placement frame, and the torsion bar is connected to the support frame via a torsion spring.

[0024] By adopting the above technical solution, when the designed torsion bar is in the installation position, the bonding pressure roller and the placement frame are in the same horizontal area. At this time, one end of the flexible printing plate is in contact with the bonding pressure roller. When the torsion bar is in the pasting position, the torsion bar applies force to the support frame through the torsion spring, thereby causing the bonding pressure roller to maintain a moving trend toward the printing cylinder, thus pressing the flexible printing plate tightly against the printing cylinder.

[0025] Secondly, this application provides a method for mounting a flexible printing plate onto a printing cylinder.

[0026] A method for mounting a flexographic printing plate onto a printing cylinder, comprising: S1: Remove the printing cylinder from the printing equipment and install it on the frame; S2: Load the flexographic printing plate into the positioning area on the placement frame; S3: Rotate the placement frame so that one side of the placement frame is close to the printing cylinder. Then, according to the magnified image projected by the display magnification unit, adjust the relative position of the placement frame and the printing cylinder by adjusting the alignment unit until the two are aligned. S4: Apply force to the placement frame again so that one end of the flexible printing plate contacts the printing cylinder. Then rotate the printing cylinder, and the flexible printing plate will adhere to the periphery of the printing cylinder until the flexible printing plate is adhered.

[0027] By adopting the above technical solution, the printing cylinder is removed from the printing equipment and installed on the frame; then the flexible printing plate is placed into the positioning area on the placement frame; subsequently, the placement frame is rotated so that one side of the placement frame is close to the printing cylinder, and then, according to the magnified image projected by the display magnification unit, the relative position of the placement frame and the printing cylinder is adjusted by adjusting the alignment unit until the two are aligned; then, force is applied to the placement frame again so that one end of the flexible printing plate contacts the printing cylinder, and then the printing cylinder is rotated, and the flexible printing plate is then pasted onto the periphery of the printing cylinder until the flexible printing plate is pasted. The designed method for installing the flexible printing plate onto the printing cylinder, with the frame conveniently serving as a display frame, allows for easy mounting of the flexible printing plate onto the printing cylinder. The installation base for the large unit and adjustment frame, through the display magnification unit, can magnify and display the alignment status of the baseline on the printing cylinder and the placement frame, thus facilitating operator observation and operation. The adjustment frame serves as the rotation base for the placement frame, and the placement frame serves as a quick positioning structure for the flexographic printing plate. The adjustment alignment unit can change the relative position of the placement frame and the printing cylinder along the axis of the printing cylinder, thereby changing the relative position of the flexographic printing plate and the printing cylinder. This improves the efficiency and accuracy of flexographic printing plate pasting, reduces the impact of human factors such as operator skill level on the accuracy of flexographic printing plate pasting, and improves the quality of subsequent cigarette box printing.

[0028] In summary, this application includes at least one of the following beneficial technical effects: 1. The designed flexographic printing cylinder plate auxiliary pasting device, through the frame, serves as the mounting base for the display magnification unit and the adjustment frame. The display magnification unit can magnify and display the alignment status of the reference lines on the printing cylinder and the placement frame, thus facilitating operator observation. The adjustment frame serves as the rotation base for the placement frame, which in turn serves as a quick positioning structure for the flexographic printing plate. The adjustment alignment unit can change the relative position of the placement frame and the printing cylinder along the axis of the printing cylinder, thereby changing the relative position of the flexographic printing plate and the printing cylinder. This improves the pasting efficiency and alignment accuracy of the flexographic printing plate, reduces the impact of human factors such as operator skill level on the accuracy of flexographic printing plate pasting, and improves the quality of subsequent cigarette box printing.

[0029] 2. The designed flexographic printing cylinder plate auxiliary pasting device can change the distance between the mounting part and the central axis of the printing cylinder through the telescopic part, thereby facilitating the free rotation of the mounting part or the bonding of the placement frame and the printing cylinder. The mounting part can serve as the rotating mounting base for the placement frame.

[0030] 3. The designed auxiliary pasting device for flexographic printing cylinders can change the position of the push bar along the axial direction of the rotation axis by adjusting the screw in conjunction with the strip groove. This push bar changes the position of the placement frame, thereby achieving position adjustment of the placement frame. Furthermore, the position adjustment of the placement frame is completed by turning the screw, and no secondary deviation will occur during the subsequent rotation of the placement frame towards the printing cylinder, further improving the installation accuracy of the flexographic printing plate.

[0031] 4. The designed auxiliary pasting device for flexographic printing cylinder plates uses a torsion bar. When the torsion bar is in the installation position, the bonding pressure roller and the placement frame are in the same horizontal area. At this time, one end of the flexible printing plate is in contact with the bonding pressure roller. When the torsion bar is in the pasting position, the torsion bar applies force to the support frame through the torsion spring, thereby causing the bonding pressure roller to maintain a moving trend towards the printing cylinder, thus pressing the flexible printing plate tightly against the printing cylinder. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the printing roller, frame, and display magnification unit in the embodiments of this application.

[0033] Figure 2 This is a schematic diagram of the structure of the roller printing plate auxiliary pasting device for flexographic printing according to an embodiment of this application.

[0034] Figure 3 yes Figure 2 Enlarged view of section A.

[0035] Figure 4 yes Figure 2 Another perspective diagram.

[0036] Figure 5 yes Figure 4 Enlarged view of part B in the image.

[0037] Figure 6 yes Figure 4 A schematic diagram of a local structure.

[0038] Explanation of reference numerals in the attached drawings: 01, printing cylinder; 1, frame; 2, display magnification unit; 3, adjustment frame; 31, mounting part; 32, telescopic part; 33, rotating shaft; 4, placement frame; 5, adjustment alignment unit; 51, push bar; 52, adjustment screw; 53, abutment bar; 6, locking pin; 7, support frame; 8, bonding pressure roller; 9, torsion bar. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0040] This application discloses an auxiliary pasting device and method for flexographic printing cylinders.

[0041] In a first aspect, embodiments of this application disclose an auxiliary pasting device for flexographic printing cylinders.

[0042] Reference Figure 1 A roller printing plate auxiliary pasting device for flexographic printing includes a frame 1 and a display magnification unit 2. The frame 1 has an installation port. The two ends of the central shaft of the printing roller 01 are inserted into the installation port to achieve a rotatable connection with the frame 1. The display magnification unit 2 includes a camera and a display screen. Both the camera and the display screen are bolted to the frame 1. The camera lens is oriented to form a camera area. The printing roller 01 is located in the camera area. The display screen is electrically connected to the camera. The image captured by the camera is magnified by a processor and displayed on the display screen, which makes it easier for the operator to judge the position more clearly and accurately. The frame 1 serves as the mounting base for the display magnification unit 2 and the adjustment frame 3. The display magnification unit 2 can magnify and display the alignment status of the printing roller 01 and the reference line on the placement frame 4, which makes it easier for the operator to observe and operate.

[0043] Reference Figure 2 and Figure 3 When performing the lamination operation of flexographic printing plates, the operator needs to observe the magnified image captured by the camera and displayed on the screen, and adjust the position of the flexographic printing plate according to the magnified image until the flexographic printing plate and the printing cylinder 01 are aligned before laminating the flexographic printing plate to the printing cylinder 01. The efficiency of the entire operation is not only affected by the operator's skill level, but also the lamination accuracy may have a secondary deviation during the alignment process. To solve this problem, the flexographic printing cylinder printing plate auxiliary lamination device also includes an adjustment frame 3, a placement frame 4, and an adjustment alignment unit 5. The adjustment frame 3 is connected to the frame 1, and the placement frame 4 is rotatably connected to the adjustment frame 3, and the rotation of the placement frame 4... The axis 33 is parallel to the rotation axis 33 of the printing cylinder 01, and a positioning area for placing the flexible printing plate is formed on one side of the placement frame 4. The shape and size of the positioning area are adapted to the flexible printing plate. The adjustment frame 3 can serve as the rotation base of the placement frame 4, and the placement frame 4 can serve as a quick positioning structure for the flexible printing plate. The relative position of the placement frame 4 and the printing cylinder 01 can be changed along the axis of the printing cylinder 01 by adjusting the alignment unit 5, thereby changing the relative position of the flexible printing plate and the printing cylinder 01. This facilitates the improvement of the pasting efficiency and alignment accuracy of the flexible printing plate, reduces the influence of human factors such as operator skill on the accuracy of flexible printing plate pasting, and improves the quality of subsequent cigarette box printing.

[0044] Reference Figure 2 and Figure 3The alignment unit 5 is connected to the frame 1 and the placement frame 4, and is used to move the placement frame 4 along the axial direction of the printing cylinder 01. Specifically, the adjustment frame 3 includes a mounting part 31 and a telescopic part 32. The mounting part 31 and the placement frame 4 rotate relative to each other through a rotating shaft 33. The alignment unit 5 is located on the mounting part 31. The telescopic part 32 is connected to the frame 1 and the mounting part 31, and is used to move the mounting part 31 in the horizontal direction and perpendicular to the axis of the printing cylinder 01. In this application, the telescopic part 32 can be an electric telescopic rod, a cylinder, or other structures capable of telescopic movement. The distance between the mounting part 31 and the central axis of the printing cylinder 01 can be changed by the telescopic part 32, thereby facilitating the free rotation of the mounting part 31 or the fitting of the placement frame 4 and the printing cylinder 01. The mounting part 31 can serve as the rotating mounting base for the placement frame 4.

[0045] Reference Figure 3 Specifically, the rotating shaft 33 is rotatably connected to the mounting part 31 via a bearing, and the placement frame 4 is slidably connected to the rotating shaft 33 along the axial direction of the printing roller 01. By rotating the shaft 33, which is rotatably connected to the mounting part 31 and slides relative to the placement frame 4, the rotation and sliding of the placement frame 4 can be easily decomposed into two levels, avoiding the situation where the placement frame 4 itself rotates relative to the rotating shaft 33 and also needs to move along the axial direction of the rotating shaft 33.

[0046] Reference Figure 3 Specifically, the alignment unit 5 includes a push bar 51 and an adjusting screw 52. A groove along its axial direction is provided on the rotating shaft 33 for the push bar 51 to pass through. The push bar 51 is slidably connected to the rotating shaft 33 and connected to one side of the placement frame 4. The rotating shaft 33 is hollow, and the adjusting screw 52 extends into the rotating shaft 33, rotating coaxially with the rotating shaft 33. The adjusting screw 52 is threadedly connected to the push bar 51. By adjusting the screw 52 in conjunction with the groove, the position of the push bar 51 along the axial direction of the rotating shaft 33 can be changed, thereby changing the position of the placement frame 4 and achieving position adjustment of the placement frame 4. Furthermore, the position adjustment of the placement frame 4 is completed by turning the adjusting screw 52, ​​preventing secondary deviations during the subsequent rotation of the placement frame 4 towards the printing cylinder 01, further improving the installation accuracy of the flexographic printing plate.

[0047] Reference Figure 4 and Figure 5 Furthermore, an abutment strip 53 is also inserted in the strip groove. Both the abutment strip 53 and the push strip 51 abut against the placement frame 4, and the abutment strip 53 is connected to the rotating shaft 33 by a spring. The abutment strip 53 and the spring work together to ensure that the placement frame 4 and the push strip 51 are always in contact.

[0048] Reference Figure 5 Furthermore, a locking pin 6 is slidably connected to the mounting part 31. In this application, the locking pin 6 and the mounting part 31 are slidably connected by a spring. A through hole is provided on the rotating shaft 33 for the locking pin 6 to be inserted. When the locking pin 6 is inserted into the through hole, the placement frame 4 is in a horizontal state and the positioning area is facing upward. The end of the locking pin 6 away from the rotating shaft 33 extends out. Force is applied to the placement frame 4 to make the rotating shaft 33 rotate until the through hole on the rotating shaft 33 corresponds to the position of the locking pin 6. The locking pin 6 will be inserted into the through hole under the action of the spring.

[0049] Reference Figure 4 The edge of the placement frame 4 is integrally formed with flanges to form a positioning area that is compatible with the flexible printing plate. An inlet and outlet are provided on one side of the positioning area, and the depth of the positioning area on the placement frame 4 is less than the thickness of the flexible printing plate. By forming a positioning area with an inlet and outlet at one end surrounded by three flanges and a depth less than the thickness of the flexible printing plate, it is easy for operators to quickly and conveniently fix the position of the flexible printing plate.

[0050] Reference Figure 6 A bonding roller 8 is rotatably connected to the placement frame 4 via a support frame 7. The bonding roller 8 is rotatably connected to the support frame 7, and the support frame 7 is rotatably connected to the placement frame 4. The rotation axis 33 of the support frame 7 is parallel to the rotation axis 33 of the placement frame 4. When one end of the flexible printing plate abuts against the end flange on the placement frame 4, the other end abuts against the bonding roller 8. Through the cooperation of the support frame 7 and the bonding roller 8, the bonding tightness between the flexible printing plate and the printing cylinder 01 can be achieved when the flexible printing plate is transferred to the printing cylinder 01, thereby improving the bonding quality of the flexible printing plate.

[0051] Reference Figure 6 Furthermore, a torsion bar 9 is rotatably connected to the placement frame 4. The torsion bar 9 switches between the installation position and the pasting position. The torsion bar 9 is connected to the support frame 7 through a torsion spring. When the torsion bar 9 is in the installation position, the bonding roller 8 and the placement frame 4 are in the same horizontal area. At this time, one end of the flexible printing plate is in contact with the bonding roller 8. When the torsion bar 9 is in the pasting position, the torsion bar 9 applies force to the support frame 7 through the torsion spring, thereby causing the bonding roller 8 to maintain a moving trend toward the printing cylinder 01, thus pressing the flexible printing plate tightly against the printing cylinder 01.

[0052] The implementation principle of the flexographic printing cylinder plate auxiliary pasting device in this application embodiment is as follows: After the printing cylinder 01 is removed from the printing equipment, it is installed on the frame 1; then the flexible printing plate is placed into the positioning area on the placement frame 4; then, by rotating the placement frame 4, one side of the placement frame 4 is brought closer to the printing cylinder 01; then, according to the magnified image projected by the display magnification unit 2, the relative position of the placement frame 4 and the printing cylinder 01 is adjusted by adjusting the alignment unit 5 until the two are aligned; then, force is applied to the placement frame 4 again so that one end of the flexible printing plate contacts the printing cylinder 01; then the printing cylinder 01 is rotated, and the flexible printing plate is pasted onto the periphery of the printing cylinder 01 until the flexible printing plate pasting is completed; the frame 1 is used as a display The mounting base for the magnifying unit 2 and the adjusting frame 3 allows for magnified display of the alignment status of the reference lines on the printing cylinder 01 and the placement frame 4, facilitating operator observation. The adjusting frame 3 serves as the base for rotating the placement frame 4, which in turn acts as a quick positioning structure for the flexographic printing plate. The adjusting alignment unit 5 can change the relative position of the placement frame 4 and the printing cylinder 01 along the axial direction of the printing cylinder 01, thereby altering the relative position of the flexographic printing plate and the printing cylinder 01. This improves the efficiency and alignment accuracy of flexographic printing plate pasting, reduces the impact of human factors such as operator skill level on the accuracy of flexographic printing plate pasting, and ultimately enhances the quality of subsequent cigarette box printing.

[0053] Secondly, embodiments of this application disclose a method for mounting a flexible printing plate onto a printing cylinder.

[0054] Reference Figures 1 to 6 A method for mounting a flexographic printing plate onto a printing cylinder, implemented using the flexographic printing cylinder printing plate auxiliary pasting device disclosed in the first aspect of the embodiments of this application, includes: S1: Remove the printing roller 01 from the printing equipment and install it on the frame 1; S2: Load the flexographic printing plate into the positioning area on the placement frame 4; S3: Rotate the placement frame 4 so that one side of the placement frame 4 is close to the printing cylinder 01. Then, according to the magnified image projected by the display magnification unit 2, adjust the relative position of the placement frame 4 and the printing cylinder 01 by adjusting the alignment unit 5 until the two are aligned. S4: Apply force to the placement frame 4 again so that one end of the flexible printing plate contacts the printing cylinder 01, and then rotate the printing cylinder 01. The flexible printing plate will then adhere to the periphery of the printing cylinder 01 until the flexible printing plate is adhered.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A roller printing plate auxiliary pasting device for flexographic printing, characterized in that: include: A frame (1) is provided, on which a display magnification unit (2) is mounted, and a printing roller (01) is rotatably connected to the frame (1) and located in the imaging area of ​​the display magnification unit (2); Adjustment frame (3), the adjustment frame (3) is connected to the frame (1), and a placement frame (4) is rotatably connected to the adjustment frame (3). The rotation axis (33) of the placement frame (4) is parallel to the rotation axis (33) of the printing cylinder (01), and a positioning area for placing a flexible printing plate is formed on one side of the placement frame (4). An adjustment alignment unit (5) for moving the placement frame (4) along the axial direction of the printing cylinder (01), the adjustment alignment unit (5) is connected to the frame (1) and the placement frame (4).

2. The auxiliary pasting device for flexographic printing cylinders according to claim 1, characterized in that: The adjusting frame (3) includes: Mounting part (31), which rotates relative to the placement frame (4) via a rotating shaft (33), and the adjustment alignment unit (5) is located on the mounting part (31); Telescopic part (32) is connected to the frame (1) and the telescopic part (32) is connected to the mounting part (31) for moving the mounting part (31) in a horizontal direction and perpendicular to the axis of the printing cylinder (01).

3. The auxiliary pasting device for flexographic printing cylinders according to claim 2, characterized in that: The rotating shaft (33) is rotatably connected to the mounting part (31), and the placement frame (4) is slidably connected to the rotating shaft (33) along the axial direction of the printing roller (01).

4. The roller printing plate auxiliary pasting device for flexographic printing according to claim 3, characterized in that: The adjustment alignment unit (5) includes: The push bar (51) has a groove along its own axis on the rotating shaft (33) for the push bar (51) to pass through, and the push bar (51) is connected to one side of the placement frame (4); The adjusting screw (52) is hollow in the rotating shaft (33), the adjusting screw (52) extends into and is coaxially rotatably connected to the rotating shaft (33), and the adjusting screw (52) is threadedly connected to the push bar (51).

5. The roller printing plate auxiliary pasting device for flexographic printing according to claim 4, characterized in that: An abutment strip (53) is inserted through the strip groove. Both the abutment strip (53) and the push strip (51) abut against the placement frame (4), and the abutment strip (53) is connected to the rotating shaft (33) by a spring.

6. The auxiliary pasting device for flexographic printing cylinders according to claim 3, characterized in that: A locking pin (6) is slidably connected to the mounting part (31), and a through hole is provided on the rotating shaft (33) for the locking pin (6) to be inserted. When the locking pin (6) is inserted into the through hole, the placement frame (4) is in a horizontal state and the positioning area faces upward.

7. The roller printing plate auxiliary pasting device for flexographic printing according to claim 1, characterized in that: The placement frame (4) has an integrally formed flange to form a positioning area that is adapted to the flexible printing plate. An inlet and outlet are provided on one side of the positioning area, and the depth of the positioning area on the placement frame (4) is less than the thickness of the flexible printing plate.

8. The roller printing plate auxiliary pasting device for flexographic printing according to claim 7, characterized in that: The placement frame (4) is rotatably connected to the bonding roller (8) via the support frame (7). The bonding roller (8) is rotatably connected to the support frame (7), and when one end of the flexible printing plate abuts against the end flange on the placement frame (4), the other end contacts the bonding roller (8).

9. The auxiliary pasting device for flexographic printing cylinders according to claim 8, characterized in that: A torsion bar (9) is rotatably connected to the placement frame (4), and the torsion bar (9) is connected to the support frame (7) through a torsion spring.

10. A method for mounting a flexible printing plate onto a printing cylinder, characterized in that: This is achieved using the flexographic printing cylinder plate auxiliary pasting device as described in any one of claims 1-9, comprising: S1: Remove the printing roller (01) from the printing equipment and install it on the frame (1); S2: Insert the flexographic printing plate into the positioning area on the placement frame (4); S3: Rotate the placement frame (4) so ​​that one side of the placement frame (4) is close to the printing cylinder (01). Then, according to the magnified image projected by the display magnification unit (2), adjust the relative position of the placement frame (4) and the printing cylinder (01) by adjusting the alignment unit (5) until the two are aligned. S4: Apply force to the placement frame (4) again so that one end of the flexible printing plate contacts the printing cylinder (01), and then rotate the printing cylinder (01) so that the flexible printing plate is pasted on the periphery of the printing cylinder (01) until the flexible printing plate is pasted.

Images