阅读说明：本技术 一种卸版方法及装置 (Plate unloading method and device ) 是由 肖帆 吴景舟 马迪 于 2020-11-18 设计创作，主要内容包括：本发明揭示了一种卸版方法及装置,待卸载的版材一端位于收版台上,另一端卡固于滚筒的活动版夹上,所述卸版方法包括：打开活动版夹同时启动收版台收版,将版材从活动版夹中拽出,完成卸版。本发明实现卸版过程的自动化,且提高卸版精度和效率。(The invention discloses a method and a device for unloading a plate, wherein one end of a plate to be unloaded is positioned on a plate receiving platform, and the other end of the plate is clamped and fixed on a movable clamp of a roller, and the method for unloading the plate comprises the following steps: and opening the movable clamp and starting the plate receiving platform to receive the plate, pulling the plate out of the movable clamp, and completing plate unloading. The invention realizes the automation of the plate unloading process and improves the plate unloading precision and efficiency.)

1. A plate unloading method is characterized in that one end of a plate to be unloaded is positioned on a plate receiving table, and the other end of the plate is clamped on a movable clamp of a roller in a clamping manner, and the method comprises the following steps: and opening the movable clamp and starting the plate receiving platform to receive the plate at the same time, pulling the plate out of the movable clamp, and completing plate unloading.

2. A method of deplating as set forth in claim 1, the method further comprising: when the plate receiving table receives the plate, the roller rotates towards the direction close to the plate receiving table, the plate receiving table is matched to pull the plate out of the movable clamp, and plate unloading is completed.

3. A plate removal method as claimed in claim 2, wherein the rotation angle of the cylinder is 2.5 degrees or less.

4. The plate unloading method of claim 1, wherein the roller is further provided with a fixed plate clamp, before unloading, one end of the plate is fixed on the fixed plate clamp, the other end of the plate is clamped on the movable plate clamp, and the plate body of the plate is attached to the outer surface of the roller.

5. A method of deplating as set forth in claim 4, the method further comprising: and opening the fixed plate clamp to move one end of the plate material to a plate receiving table.

6. A method of unmounting according to claim 1, wherein said process of opening said movable clamp comprises: the roller is rotationally positioned to a plate unloading position of the movable clamp, and the movable clamp is opened under the action of a plate loading and unloading driving piece.

7. The plate unloading method of claim 1, wherein the plate unloading method is used for plate unloading after plate making of the exposure machine is completed.

8. The utility model provides an unload version device, its characterized in that, unload the version device and include the cylinder and receive the version platform, be provided with movable clamp on the cylinder, the version material one end of treating the uninstallation is located receive the version platform, the other end card is fixed in on the movable clamp of cylinder, opens movable clamp starts simultaneously receive the version platform and receive the version, drags out the version material from movable clamp, accomplishes and unloads the version.

9. The plate unloading device of claim 8, wherein when the plate receiving table receives the plate, the roller rotates towards the direction close to the plate receiving table, and the plate receiving table is matched to pull the plate out of the movable clamp to complete plate unloading.

10. A plate unloader according to claim 9, wherein the rotation angle of the cylinder is 2.5 degrees or less.

Technical Field

The invention relates to an unloading technology, in particular to an unloading method and an unloading device.

Background

In computer-to-plate devices, the plate is typically scanned point-by-point, line-by-line by means of a scanning system using a light source focused onto the plate, exposing multiple image lines simultaneously with each scan of the plate. The printing plate is typically arranged on a cylindrical cylinder.

In the case of an external drum plate making apparatus, the printing plate is usually fixed to the drum surface of a cylindrical exposure cylinder, and the leading edge of the printing plate is typically clamped by a fixed clamp fixed to the cylinder and the trailing edge of the printing plate is fixed by a movable clamp.

After the exposure machine finishes plate making, the printing plate needs to be unloaded from the roller, so how to provide a scheme with automatic plate unloading and high plate unloading success rate is a technical problem to be solved.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a plate unloading method and a plate unloading device.

In order to achieve the purpose, the invention provides the following technical scheme: a method for unloading a plate, one end of a plate to be unloaded is positioned on a plate receiving table, and the other end of the plate is clamped on a movable clamp of a roller, the method comprises the following steps: and opening the movable clamp and starting the plate receiving platform to receive the plate at the same time, pulling the plate out of the movable clamp, and completing plate unloading.

Preferably, the method further comprises: when the plate receiving table receives the plate, the roller rotates towards the direction close to the plate receiving table, the plate receiving table is matched to pull the plate out of the movable clamp, and plate unloading is completed.

Preferably, the rotation angle of the drum is 2.5 degrees or less.

Preferably, the roller is further provided with a fixed plate clamp, before unloading, one end of the plate is fixed on the fixed plate clamp, the other end of the plate is clamped on the movable plate clamp, and the plate body of the plate is attached to the outer surface of the roller.

Preferably, the method further comprises: and opening the fixed plate clamp to move one end of the plate material to a plate receiving table.

Preferably, the process of opening the movable clamp includes: the roller is rotationally positioned to a plate unloading position of the movable clamp, and the movable clamp is opened under the action of a plate loading and unloading driving piece.

Preferably, the plate unloading method is used for unloading the plate after the plate making of the exposure machine is completed.

The invention also provides another technical scheme: the utility model provides an unload version device, includes the cylinder and receives the version platform, be provided with movable clamp on the cylinder, the version material one end of treating the uninstallation is located receive the version bench, and the other end card is fixed in on the movable clamp of cylinder, opens movable clamp starts simultaneously receive the version platform and receive the version, drag out the version material from movable clamp, accomplish and unload the version.

The invention has the beneficial effects that:

1. the automatic plate unloading process of the printing plate is completed through the plate receiving table, so that the automation of the plate unloading process is realized, and the plate unloading precision and efficiency are improved.

2. According to the invention, the plate is pulled out from the movable plate clamp by the friction force between the roller and the plate when the roller rotates and the plate is folded by matching with the conveying force of the plate folding table, so that the plate unloading action is completed, the plate unloading action is smooth and continuous, and the plate unloading success rate is improved.

Drawings

FIG. 1 is a schematic view of the structure of the plate removing apparatus of the present invention;

FIG. 2 is a schematic view showing the rotation angle of the cylinder of the plate removing apparatus according to the present invention;

FIG. 3 is a schematic flow chart of an plate removal method according to an embodiment of the present invention;

FIG. 4 is a schematic flow chart of an plate removal method according to another embodiment of the present invention;

reference numerals:

1. the automatic plate feeding device comprises a roller, 2, a plate collecting table, 3, a movable plate clamp, 4, a fixed plate clamp, 5 and a plate material.

Detailed Description

The technical solution of the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.

Referring to fig. 1 and 2, the plate unloading device disclosed by the invention comprises a roller 1 and a plate collecting table 2, wherein a movable plate clamp 3 and a fixed plate clamp 4 are arranged on the roller 1, one end of a plate 5 to be unloaded is fixed on the fixed plate clamp 4 and clamped by the fixed plate clamp 4, the other end of the plate 5 is fixed on the movable plate clamp 3 and clamped by the movable plate clamp 3, and the plate body of the plate 5 is attached to the outer surface of the roller 1. The movable clamp 3 can slide around the outer surface of the roller 1, so that the movable clamp can be suitable for fixing plates 5 with different specifications.

The plate receiving table 2 is located at one side of the cylinder 1 and is used for unloading the plate 5 from the cylinder 1. When unloading, open fixed clamp 4, on the corresponding end of version 5 was under its self elasticity effect or the human action, on lifting up and receiving the version platform 2, cylinder 1 rotated and is positioned activity clamp 3 and unload the position, opened activity clamp 3 under the effect of loading and unloading version driving piece (not shown, like the motor), received the version platform 2 and dragged out the other end of version 5 from activity clamp 3, accomplished and unloaded the version action.

However, in the unloading process, it is found that, for thick plates with small length and width (the thickness is almost about 0.27 mm), the probability that the plates 5 are blocked in the movable clamp 3 is high, and although the problem can be solved by increasing the number of rollers of the plate receiving table 2 due to self weight or pressure, the effect is poor.

Therefore, in order to solve the problem that the plate 5 is not clamped in the movable clamp 3, preferably, as shown in fig. 2, when the plate is collected by the plate collecting table 2, the process that the roller 1 rotates towards the direction close to the plate collecting table 2 is additionally arranged, and the plate 5 is pulled out of the movable clamp 3 by the friction force between the roller 1 and the plate 5 in cooperation with the plate collecting table 2, so that plate unloading is completed. After the process that the roller 1 rotates towards the direction close to the plate receiving table 2 is added, compared with the prior art, the plate unloading process is smoother and more consistent, and the problem of unsuccessful plate unloading is thoroughly avoided.

Based on the plate removing device, as shown in fig. 3, a plate removing method disclosed in one embodiment of the present invention includes the following steps:

s100, opening the fixed clamp 4 to enable one end of the plate 5 to move to the plate receiving table 2, and enabling the other end of the plate to be clamped on the movable clamp 3 on the roller 1.

S200, the roller 1 rotates and is positioned to a movable clamp plate unloading position, and the movable clamp plate 3 is opened under the action of a plate unloading driving piece.

S300, opening the movable clamp 3, starting the plate receiving table 2 to receive the plate, pulling the plate 5 out of the movable clamp 3, and completing plate unloading.

As shown in fig. 4, another embodiment of the invention discloses a plate-removing method, which includes the following steps:

s100, opening the fixed clamp 4 to enable one end of the plate 5 to move to the plate receiving table 2, and enabling the other end of the plate to be clamped on the movable clamp 3 on the roller 1.

S200, the roller 1 rotates and is positioned to a movable clamp plate unloading position, and the movable clamp plate 3 is opened under the action of a plate unloading driving piece.

S300, opening the movable clamp 3 and starting the plate receiving platform 2 to receive the plate.

S400, when the plate receiving table 2 receives the plate, the roller 1 rotates towards the direction close to the plate receiving table 2, the plate 5 is pulled out of the movable clamp 3 by matching with the plate receiving table 2, and plate unloading is completed.

Preferably, in S400, the rotation angle α of the drum 1 is less than or equal to 2.5 degrees, preferably 2.5 degrees, but the rotation angle of the drum 1 may be increased, that is, greater than 2.5 degrees, according to actual needs.

The plate unloading device and the plate unloading method can be used for plate unloading after plate making of the exposure machine is finished, and can also be used for unloading of other machines.

The automatic plate unloading process of the printing plate is completed by matching the plate receiving table 2 and the roller 1, so that the automation of the plate unloading process is realized, and the plate unloading precision and efficiency are improved. In addition, the friction force between the roller 1 and the plate 5 when the roller 1 rotates is utilized, and the plate is collected by the aid of the conveying force of the plate collecting table 2, so that the plate 5 is pulled out of the movable plate clamp 3, plate unloading is completed, the plate unloading is smooth and coherent, and the plate unloading success rate is improved.

Therefore, the scope of the present invention should not be limited to the disclosure of the embodiments, but includes various alternatives and modifications without departing from the scope of the present invention, which is defined by the claims of the present patent application.