Precision adjustment system of die-cutting machine

Abstract

The present invention provides a precision adjustment system for a die-cutting machine. The precision adjustment system includes a fine-tuning component, a registration component, and a paper feeder. The precision adjustment system is disposed at the front end of the die-cutting machine. The fine-tuning component is connected to the registration component, which is in turn connected to the paper feeder. When paper is placed on the paper feeder, the fine-tuning component identifies a gripper bar that has moved to the front end of the die-cutting machine and is ready to grip the paper. The fine-tuning component transmits a pre-measured error value corresponding to the identified gripper bar to the registration component. The registration component adjusts the position of the paper feeder and the paper on the paper feeder based on the error value. The advantages of the present invention are that the precision of the gripper bar can be corrected without requiring downtime for maintenance, significantly reducing machine maintenance costs, avoiding downtime for maintenance, and improving production efficiency. The modifications to existing equipment are minimal, improving equipment precision at a low cost.

Description

Technical Field

[0001] The invention relates to the field of paper processing, and in particular to a precision adjustment system for a die-cutting machine. Background Art

[0002] With the rapid development of the printing and packaging industry, the market demands for increasingly higher levels of automation in post-press processing equipment. The pursuit of high-speed, precise processing equipment to improve production efficiency and capture market share is a market demand and an inevitable trend in the development of post-press equipment. A die-cutter is a specialized machine used in the printing, packaging, and decoration industries to creasing and die-cut paper, cardboard, and corrugated paper. The die-cutter uses chain-mounted teeth to move the paper. During the die-cutting process, ensuring precision in both die-cutting and processing has always been a key concern for related companies.

[0003] In existing technology, electronic registration systems are often used to adjust the position of paper before it enters the die-cutting machine. This system detects the position of each sheet of paper as it enters the die-cutting machine. Based on the detection results, the electronic registration system controls the paper feeder to adjust each sheet of paper, ensuring that the position of each sheet of paper delivered to the gripper bar remains consistent, meeting the machine's precision requirements. However, after long-term use and wear, the position of each gripper bar may vary slightly due to factors such as chain deformation. This variation can cause the position of the paper to be misaligned when different gripper bars grip the paper.

[0004] Existing electronic registration systems are unable to adjust the paper's position based on the errors in each gripper bar's position. This requires stopping the machine, replacing all tools for testing machine accuracy, and using paper of a specific specification to verify the machine's positioning accuracy. Once the error values are determined, maintenance personnel will identify the corresponding gripper bar based on the error values and adjust the gripper bar's positioning accuracy by adjusting the shims on its positioning surfaces. After adjustments are complete, the system returns to step one and retests the machine's accuracy using paper of a specific specification. If the accuracy still does not meet production requirements, the second step is repeated until the accuracy meets production requirements.

[0005] In summary, there is a need to provide a precision adjustment system for a die-cutting machine that can overcome the defects of the prior art. Summary of the Invention

[0006] The present invention aims to provide a precision adjustment system for a die-cutting machine, which can overcome the defects of the prior art. The purpose of the present invention is achieved through the following technical solutions.

[0007] One embodiment of the present invention provides a precision adjustment system for a die-cutting machine, the precision adjustment system including a fine-tuning component, a registration component and a paper feeder, the precision adjustment system is arranged at the front end of the die-cutting machine, the fine-tuning component is connected to the registration component, the registration component is connected to the paper feeder, the paper is placed on the paper feeder, the fine-tuning component identifies the tooth bar that moves to the front end of the die-cutting machine to prepare for gripping the paper, the fine-tuning component transmits the pre-measured error value corresponding to the identified tooth bar to the registration component, and the registration component adjusts the position of the paper feeder and the paper on the paper feeder according to the error value.

[0008] According to the precision adjustment system of the die-cutting machine described in one embodiment of the present invention, the fine-tuning component includes a camera and an identification code, the identification code is affixed to the surface of the tooth bar, each tooth bar of the die-cutting machine corresponds to a different identification code, and the pasting position of the identification code on each tooth bar is the same, the camera is installed at the front end of the die-cutting machine, the camera is aimed at the identification code on the tooth bar, the camera and the registration component are electrically connected, the camera scans the identification code on the tooth bar ready to hold the paper, the camera transmits the identification code to the registration component, the registration component searches for the error value corresponding to the identification code according to the identification code, and the registration component adjusts the position of the paper through the paper feeder according to the error value.

[0009] According to the precision adjustment system for the die-cutting machine described in one embodiment of the present invention, the error value is the deviation between the actual position of the tooth bar obtained by manual measurement and the designed position, and each tooth bar of the die-cutting machine corresponds to an independent error value.

[0010] According to the precision adjustment system of the die-cutting machine described in one embodiment of the present invention, the registration component includes a camera, a driver and a processor, the camera is located above the paper feeder and is fixedly connected to the die-cutting machine, the camera is aimed at the paper feeder, the processor is respectively connected to the camera, the driver and the camera of the fine-tuning component, the driver is connected to the paper feeder, the camera captures the image of the paper placed on the paper feeder and transmits the image to the processor, the processor obtains the registration amount according to the image and the preset paper position, the registration component searches for the error value corresponding to the identification code according to the identification code from the camera, and the processor adjusts the position of the paper feeder and the paper on the paper feeder through the driver according to the registration amount and the error value.

[0011] According to the precision adjustment system for a die-cutting machine described in one embodiment of the present invention, the identification code is a number, a letter, a barcode or a QR code.

[0012] The advantages of the precision adjustment system of the die-cutting machine are that when there is a small deviation in the precision of the die-cutting machine, the precision of the tooth bar can be corrected without stopping the machine for maintenance, which greatly reduces the maintenance cost of the machine, while avoiding the time of maintenance downtime and improving production efficiency; the amount of modification to the existing equipment is small, and the precision of the equipment is improved at a lower cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The disclosure of the present invention will become more easily understood with reference to the accompanying drawings. Those skilled in the art will readily appreciate that these drawings are merely used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0014] Figure 1 A schematic diagram of a precision adjustment system for a die-cutting machine according to one embodiment of the present invention is shown;

[0015] Figure 2 Shown as Figure 1 The schematic diagram of the precision adjustment system installed at the front end of the die-cutting machine according to one embodiment of the present invention is shown;

[0016] Figure 3 Shown as Figure 2 FIG. 1 is a top view of a tooth bar according to one embodiment of the present invention. DETAILED DESCRIPTION

[0017] Figure 1-3 The following description describes alternative embodiments of the present invention to teach those skilled in the art how to implement and reproduce the present invention. In order to teach the technical solutions of the present invention, some conventional aspects have been simplified or omitted. Those skilled in the art will understand that variations or substitutions derived from these embodiments will fall within the scope of protection of the present invention. Those skilled in the art will understand that the following features can be combined in various ways to form multiple variations of the present invention. Thus, the present invention is not limited to the following alternative embodiments, but is limited only by the claims and their equivalents.

[0018] Figure 1-3 A schematic diagram of a precision adjustment system of a die-cutting machine according to an embodiment of the present invention is shown, wherein the precision adjustment system includes a fine-tuning component 1, a registration component 2 and a paper feeder 3, and the precision adjustment system is arranged at the front end of the die-cutting machine A, the fine-tuning component 1 is connected to the registration component 2, and the registration component 2 is connected to the paper feeder 3, and the paper (not shown) is placed on the paper feeder 3. The chain 5 of the die-cutting machine A moves the tooth bar 4 to the paper-gripping position, and the fine-tuning component 1 identifies the tooth bar 4 moved to the front end of the die-cutting machine A to prepare for gripping the paper, and the fine-tuning component 1 transmits the pre-measured error value corresponding to the identified tooth bar 4 to the registration component 2, and the registration component 2 adjusts the position of the paper feeder 3 and the paper on the paper feeder 3 according to the error value, and the tooth bar 4 grips the paper and feeds the paper into the die-cutting machine A.

[0019] According to the precision adjustment system of the die-cutting machine described in one embodiment of the present invention, the fine-tuning component 1 includes a camera 11 and an identification code 12, the identification code 12 is affixed to the surface of the tooth bar 4, each tooth bar 4 of the die-cutting machine corresponds to a different identification code 12, and the pasting position of the identification code 12 on each tooth bar 4 is the same, the camera 11 is installed at the front end of the die-cutting machine, the camera 11 is aligned with the identification code 12 on the tooth bar 4, the camera 11 and the registration component 2 are electrically connected, the camera 11 scans the identification code 12 on the tooth bar 4, the camera 11 transmits the identification code 12 to the registration component 2, the registration component 2 searches for the error value corresponding to the identification code 12 according to the identification code 12, and the registration component 2 adjusts the position of the paper through the paper feeder 3 according to the error value.

[0020] According to the precision adjustment system of the die-cutting machine described in one embodiment of the present invention, the error value is the deviation between the actual position of the tooth bar 4 and the designed position obtained by manual measurement, and each tooth bar 4 of the die-cutting machine A corresponds to an independent error value.

[0021] According to the precision adjustment system of the die-cutting machine described in one embodiment of the present invention, the registration component 2 includes a camera 21, a processor 22 and a driver 23, the camera 21 is located above the paper feeder 3 and is fixedly connected to the die-cutting machine, the camera 21 is aligned with the paper feeder 3, the processor 22 is respectively connected to the camera 21, the driver 23 and the camera 11 of the fine-tuning component 1, the driver 23 is connected to the paper feeder 3, the camera 21 takes an image of the paper placed on the paper feeder 3 and transmits the image to the processor 22, the processor 22 obtains the registration amount according to the image and the preset paper position, the registration component 2 searches for the error value corresponding to the identification code 12 according to the identification code 12 from the camera 11, and the processor 22 adjusts the position of the paper feeder 3 and the paper on the paper feeder 3 through the driver 23 according to the registration amount and the error value.

[0022] According to the precision adjustment system for a die-cutting machine described in one embodiment of the present invention, the identification code 12 is a number, letter, barcode, QR code or any other pattern or character that can be used for identification.

[0023] The advantages of the precision adjustment system of the die-cutting machine are that when there is a small deviation in the precision of the die-cutting machine, the precision of the tooth bar can be corrected without stopping the machine for maintenance, which greatly reduces the maintenance cost of the machine, while avoiding the time of maintenance downtime and improving production efficiency; the amount of modification to the existing equipment is small, and the precision of the equipment is improved at a lower cost.

[0024] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A precision adjustment system for a die-cutting machine, characterized in that: The precision adjustment system includes a fine-tuning component, a registration component and a paper feeder. The precision adjustment system is arranged at the front end of the die-cutting machine. The fine-tuning component is connected to the registration component, and the registration component is connected to the paper feeder. The paper is placed on the paper feeder. The fine-tuning component identifies the tooth bar that moves to the front end of the die-cutting machine and is ready to grip the paper. The fine-tuning component transmits the pre-measured error value corresponding to the identified tooth bar to the registration component. The registration component adjusts the position of the paper feeder and the paper on the paper feeder according to the error value. The error value is the deviation between the actual position of the tooth bar obtained by manual measurement and the designed position. Each tooth bar of the die-cutting machine corresponds to an independent error value.

2. The precision adjustment system for the die-cutting machine according to claim 1, characterized in that: The fine-tuning component includes a camera and an identification code. The identification code is affixed to the surface of the tooth bar. Each tooth bar of the die-cutting machine corresponds to a different identification code. The affixed position of the identification code on each tooth bar is the same. The camera is installed at the front end of the die-cutting machine. The camera is aimed at the identification code on the tooth bar. The camera and the registration component are electrically connected. The camera scans the identification code on the tooth bar ready to hold the paper. The camera transmits the identification code to the registration component. The registration component searches for the error value corresponding to the identification code according to the identification code. The registration component adjusts the position of the paper through the paper feeder according to the error value.

3. The precision adjustment system for a die-cutting machine according to claim 2, characterized in that: The registration component includes a camera, a driver and a processor. The camera is located above the paper feeder and is fixedly connected to the die-cutting machine. The camera is aimed at the paper feeder. The processor is respectively connected to the camera, the driver and the camera of the fine-tuning component. The driver is connected to the paper feeder. The camera captures the image of the paper placed on the paper feeder and transmits the image to the processor. The processor obtains the registration amount based on the image and the preset paper position. The registration component searches for the error value corresponding to the identification code based on the identification code from the camera. The processor adjusts the position of the paper feeder and the paper on the paper feeder through the driver according to the registration amount and the error value.

4. The precision adjustment system for a die-cutting machine according to claim 2, characterized in that: The identification code is a number, letter, barcode or QR code.

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