Die cutting cutter roller blade replacement mechanism

Abstract

The present invention discloses a mechanism for replacing the cutting blade of a die-cutting knife roll, including a magnetic knife roll, characterized in that: a cutting blade loading platform is arranged on one side above the knife roll, and a cutting blade unloading platform is arranged on the other side. The cutting blade loading platform enables the cutting blade placed thereon to be magnetically adsorbed by the knife roll, and the cutting blade unloading platform is used to receive the cutting blade peeled off from the knife roll. A cutting blade peeling assembly is arranged on the feeding side of the cutting blade unloading platform. The cutting blade peeling assembly includes a cutting blade prying block, and the cutting blade prying block moves closer to and away from the knife roll. When the cutting blade prying block approaches the knife roll, a corresponding prying block groove is provided on the roll surface of the knife roll for the top of the cutting blade prying block to enter. The present invention is used for automatically loading and unloading the cutting blade of the knife roll, and can also be operated manually. The structure is simple and the work efficiency is improved.

Description

Technical Field

[0001] The present invention relates to a printing or post-printing device with a die-cutting function, and particularly to a die-cutting blade roller blade-changing mechanism. Background Art

[0002] Many current printing and post-printing devices, including die-cutting machines, have a die-cutting function, that is, by rolling a die-cutting blade roller, a designed pattern shape is die-cut on a printed sheet. Since the designed pattern shapes are diverse, the die-cutting blade on the blade roller needs to be frequently replaced during the die-cutting production process. Currently, the blade roller itself has magnetism. When replacing the blade, it is generally completed manually, and tedious operations such as plate alignment adjustment are required to accurately adsorb the blade on the surface of the blade roller, resulting in low work efficiency and high technical requirements for technical workers. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a die-cutting blade roller blade-changing mechanism that can automatically load and unload the blade for the blade roller, and can also be manual, with a simple structure and improved work efficiency.

[0004] The present invention is implemented through the following technical solutions:

[0005] The die-cutting blade roller blade-changing mechanism includes a magnetic blade roller, and is characterized in that: a blade loading platform is arranged on one side above the blade roller, and a blade unloading platform is arranged on the other side. The blade loading platform enables the blade placed thereon to be magnetically adsorbed by the blade roller. The blade unloading platform is fixedly installed on the machine base and is used to receive the blade peeled off from the blade roller. A blade peeling component is arranged on the feeding side of the blade unloading platform. The blade peeling component includes a blade prying block, and the blade prying block moves close to and away from the blade roller. When the blade prying block moves close to the blade roller, a corresponding prying block groove is provided on the roller surface of the blade roller for the top of the blade prying block to enter; the blade loading platform is swingably arranged on the sliding bracket with a rotating shaft as the center, and a blade side positioning block and a blade pressing plate are installed on the blade loading platform, and the blade pressing plate is arranged to move up and down; a roller is arranged on the mounting plate of the blade prying block, and the mounting plate is slidably connected to the sliding bracket. When unloading the blade, the roller is in rolling contact with the blade roller. A control groove is provided on the roller surface of the blade roller. When the roller enters and exits the control groove, the blade prying block synchronously enters and exits the prying block groove; the blade loading platform and the blade peeling component are installed on the sliding bracket, and the sliding bracket moves in the axial direction of the blade roller above the blade roller.

[0006] The blade loading platform is pushed by a swing cylinder to swing, the blade pressing plate is pushed by a blade pressing cylinder to perform the activities of pressing and releasing the blade, and a blade front positioning plate is fixedly arranged at the front position of the blade loading platform.

[0007] For the die-cutting knife roll blade changing mechanism of the above technical solution, when automatically loading and unloading the blades, the blades on the knife roll are first automatically peeled off by the blade prying block. The automatically peeled blades are sent out through the blade unloading platform. Subsequently, the blades of another pattern shape positioned on the blade loading platform are magnetically adsorbed by the knife roll and wound around the surface of the knife roll to complete the actions of automatically loading and unloading the blades. The action structure is simple, the work efficiency is improved, and there is no high technical requirement for technical workers. In addition, if the sliding bracket is moved backward as a whole, the entire upper part of the knife roll will be completely exposed, and at this time, the manual loading and unloading actions of the blades can be carried out. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The present invention has the following drawings:

[0009] Figure 1 is a schematic structural diagram of the present invention,

[0010] Figure 2 is Figure 1 a partially enlarged view of

[0011] Figure 3 is Figure 1 an axial sectional view of

[0012] Figure 4 is a working state diagram of the present invention when manually changing the blades,

[0013] Figure 5 is Figure 4 a partially enlarged view of DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] As shown in the figure, the die-cutting cutter roller blade-changing mechanism of the present invention includes a magnetic cutter roller 1. On one side above the cutter roller 1, there is a blade loading platform 2, and on the other side, there is a blade unloading platform 3. The blade loading platform 2 magnetically adsorbs the blades placed thereon by the cutter roller. The blade loading platform 2 swings around the rotating shaft 15, and the swing of the blade loading platform 2 is pushed by the swing cylinder 11. After the blade loading platform 2 swings, the platform surface of the blade loading platform will face the cutter roller, so that the front end of the blade placed on the blade loading platform contacts the roller surface of the cutter roller. There are a blade side positioning block 14 and a blade pressing plate 13 on the blade loading platform 2. The left and right positions of the blade side positioning block 14 can be manually adjusted. The blade pressing plate 13 is pushed by the blade pressing cylinder 12 to perform the activities of pressing and releasing the blade. In the front position of the blade loading platform 2, there is a blade front positioning plate 9, and the blade front positioning plate 9 is fixedly installed. The blade unloading platform 3 is used to receive the blade C peeled off from the cutter roller 1. The blade unloading platform 3 is fixedly installed on the machine base. On the feeding side of the blade unloading platform 3, there is a blade peeling assembly. The blade loading platform 2 and the blade peeling assembly are installed on the sliding bracket 10. The sliding bracket 10 moves along the axial direction of the cutter roller above the cutter roller 1. The blade peeling assembly includes a number of blade prying blocks 4 arranged side by side left and right. The blade prying blocks 4 move closer to and away from the cutter roller 1. When the blade prying blocks 4 approach the cutter roller 1, there are corresponding prying block grooves A on the roller surface of the cutter roller 1 for the tops of the blade prying blocks 4 to enter. The mounting plate 5 of the blade prying block 4 is provided with rollers 6. When unloading the blade, the rollers 6 rollingly contact the cutter roller 1. There is a control groove B on the roller surface of the cutter roller 1. When the rollers 6 enter and exit the control groove B, the blade prying blocks 4 synchronously enter and exit the prying block grooves A. The left and right ends of the mounting plate 5 are fixedly connected to the sliders 8. The sliders 8 are obliquely movably arranged inside the side plates of the sliding bracket 10, and the oblique movement of the sliders 8 is pushed by the oblique cylinder 7.

[0015] The present invention works as follows: When it is necessary to automatically load and unload the knife leather C of the die-cutting knife roller 1, first, the inclined cylinder 7 pushes the slider 8 to make the mounting plate 5 approach the knife roller 1. Then, the roller 6 comes into rolling contact with the knife roller 1. As the knife roller 1 rotates, when the roller 6 enters the control groove B, the knife leather pry block 4 also enters the pry block groove A. Thus, the top of the knife leather pry block 4 picks up the front end of the knife leather C on the knife roller 1 upward, causing the knife leather C on the knife roller 1 to be peeled off and sent out through the knife leather unloading platform 3 to complete the automatic unloading action of the knife leather; Previously, a new knife leather is placed on the knife leather loading platform 2. The left and right positions of the knife leather are limited by the side positioning blocks 14, and the front position of the knife leather is limited by the knife leather front positioning plate 9. After the knife leather is positioned, the knife leather pressing plate 13 presses the knife leather on the knife leather loading platform 2; After confirming that there is no knife leather C on the knife roller 1 or the old knife leather has been peeled off, the swinging cylinder 11 acts, and the knife leather loading platform 2 swings around the rotating shaft 15, making the platform surface of the knife leather loading platform 2 face the roller surface of the knife roller 1. Thus, the front end of the knife leather on the knife leather loading platform 2 contacts the surface of the knife roller 1 and is magnetically adsorbed by the knife roller. Subsequently, the knife leather pressing plate 13 releases the pressing on the knife leather. Then, as the knife roller 1 rolls, the knife leather on the knife leather loading platform 2 will leave and wind around the surface of the knife roller 1 to complete the automatic loading action of the knife leather. If it is necessary to manually load and unload the knife leather, then only need to move the entire sliding support 10 of the knife leather loading platform 2 and the knife leather peeling assembly backward to completely expose the entire upper part of the knife roller 1 ( Figure 4 status), and at this time, the manual loading and unloading actions of the knife leather can be carried out.

Claims

1. Die cutting roller blade replacement mechanism, including a magnetic roller, Characterized in that: A blade loading platform is arranged on one side above the roller, and a blade unloading platform is arranged on the other side. The blade loading platform enables the blades placed thereon to be magnetically adsorbed by the roller. The blade unloading platform is fixedly installed on the machine base and is used to receive the blades peeled off from the roller. A blade peeling component is provided on the feeding side of the blade unloading platform. The blade peeling component includes a blade prying block, and the blade prying block moves closer to and away from the roller. When the blade prying block moves closer to the roller, a corresponding prying block groove is provided on the roller surface for the top of the blade prying block to enter; the blade loading platform is swingably arranged on the sliding bracket with a rotating shaft as the center, and a blade side positioning block and a blade pressing plate are installed on the blade loading platform, and the blade pressing plate is arranged to move up and down; rollers are provided on the mounting plate of the blade prying block, and the mounting plate is slidably connected to the sliding bracket. When unloading the blade, the rollers are in rolling contact with the roller. A control groove is provided on the roller surface of the roller. When the rollers enter and exit the control groove, the blade prying block synchronously enters and exits the prying block groove; the blade loading platform and the blade peeling component are installed on the sliding bracket, and the sliding bracket moves in the axial direction of the roller above the roller.

2. The die cutting roller blade replacement mechanism according to claim 1, Characterized in that: The blade loading platform is pushed by a swing cylinder to swing, the blade pressing plate is pushed by a blade pressing cylinder to perform the activities of pressing and loosening the blade, and a blade front positioning plate is fixedly provided at the front position of the blade loading platform.

Images