A paper jam correction device and method for a plotter

Abstract

The application discloses a jam rectifying device and method of a drawing printer, which comprises a machine table, a winding mechanism, a fixed seat, an encoder, an encoder wheel and a driven wheel. When the drawing paper is being pulled and stretched on the machine table, the encoder is connected to a control system, and the encoder sends the rotation amount of the encoder wheel to the control system. The application records the rotation state of the encoder wheel by the encoder, and sends the detection signal of the corresponding feeding amount to the control system. When the jam occurs, the drawing paper stops moving, and thus the encoder wheel does not rotate. After the operator recovers the jam, the control system analyzes the feeding amount of the drawing paper before the jam according to the information detected by the encoder wheel, judges the overall progress of the printing work, and calculates the compensation amount required for the continuous printing work, so as to avoid affecting the printing effect of the drawing paper and to avoid abnormal conditions such as misplacement and missing printing.

Description

Technical Field

[0001] This invention relates to the field of plotter printer technology, and more particularly to a paper jam correction device and correction method for plotter printers. Background Technology

[0002] A plotter printer is a device that draws according to graphics input into a system, capable of printing computer-generated information in graphical form. With the support of plotting software, plotter printers can produce complex and precise graphics, making them an indispensable tool for various computer-aided design tasks. During plotting printing, rolls of paper are typically used for feeding. A rewinding mechanism pulls the paper forward to complete the printing process. Generally, the control system detects the number of rotations of the rewinding mechanism to record the paper feed, thus controlling the printing process. However, in actual operation, paper jams sometimes occur, requiring resolution before printing can continue. However, during a paper jam, the rewinding mechanism may continue winding, but the paper cannot move forward due to the jam, causing the rewinding mechanism to slip and spin freely. This slippage is also detected by sensors. After the paper jam is resolved, the system may include this slippage portion of the feed in the already printed feed, leading to abnormal final print quality.

[0003] Therefore, existing technologies have shortcomings and need to be improved. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a paper jam correction device and correction method for a drawing printer.

[0005] The technical solution of the present invention is as follows: A paper jam correction device for a drawing printer is provided, comprising: a machine base, a winding mechanism disposed on the machine base, a fixed base disposed on the machine base, an encoder disposed on the fixed base, an encoder wheel connected to the encoder, and a driven wheel meshing with the encoder wheel. When the printing paper is pulled and stretched on the machine base, the printing paper is first passed between the encoder wheel and the driven wheel, and then the printing paper is wound onto the winding mechanism. The encoder is connected to the control system, and the encoder sends the rotation amount of the encoder wheel to the control system.

[0006] Furthermore, the machine base is provided with a mounting base, on which a rocker arm is hinged, and the driven wheel is located at the bottom of the rocker arm.

[0007] Furthermore, a handle is movably provided on the mounting base, and a drive rod is provided on the handle. The cross-section of the drive rod is butterfly-shaped, and a square hole is provided on the rocker arm corresponding to the drive rod, through which the drive rod passes.

[0008] Furthermore, the mounting base is provided with several holes, and the mounting base is fixed by passing bolts through the holes and locking them to the machine base.

[0009] Furthermore, the winding mechanism is equipped with a detection module, which is connected to the control system.

[0010] The present invention also provides a paper jam correction method for a plotter printer, based on the paper jam correction device for a plotter printer as described above, comprising the following steps:

[0011] Step 1: Pass the printing paper between the encoder wheel and the driven wheel, and wind it onto the take-up mechanism;

[0012] Step 2: Start the winding mechanism to wind the printing paper, thereby pulling the printing paper forward to complete the printing of images and text.

[0013] Step 3: When a paper jam occurs, the paper jam detection sensor detects the abnormal paper delivery and sends a corresponding detection signal to the control system, thereby triggering a paper jam alarm and reminding the operator to handle the situation.

[0014] Step 4: The operator handles the paper jam and starts the plotter printer to continue printing;

[0015] Step 5: Before continuing the work, the control system analyzes the detection information recorded by the encoder, supplements the paper feed based on the calculated compensation data, and continues the printing process before the paper jam.

[0016] Furthermore, in step 5, when the control system analyzes the encoder's detection information, it simultaneously analyzes the information detected by the detection module on the winding mechanism, compares and analyzes the detection information of the detection module when the printing paper jams, and calculates the compensation amount.

[0017] Using the above scheme, this invention records the rotation state of the encoder wheel using an encoder, and sends a corresponding feed detection signal to the control system. When a paper jam occurs, the printing paper stops moving, so the encoder wheel does not rotate. After the operator resolves the paper jam, the control system analyzes the paper feed before the jam based on the information detected by the encoder wheel, thereby determining the overall progress of the printing work and calculating the compensation amount required to continue printing to avoid affecting the printing quality of the drawings and preventing abnormalities such as misalignment or missing prints. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0020] Please see Figure 1 This invention provides a paper jam correction device for a drawing printer, comprising: a machine base, a winding mechanism disposed on the machine base, a fixed base 1 disposed on the machine base, an encoder 2 disposed on the fixed base 1, an encoder wheel 21 connected to the encoder 2, and a driven wheel 3 meshing with the encoder wheel 21. When the printing paper is pulled and stretched on the machine base, the printing paper is first passed between the encoder wheel 21 and the driven wheel 3, and then the printing paper is wound onto the winding mechanism. The encoder 2 is connected to a control system, and the encoder 2 sends the rotation amount of the encoder wheel 21 to the control system.

[0021] During printing, the rewinding mechanism pulls the paper forward to print graphics or text. Under normal paper feeding conditions, the paper passes between the encoder wheel 21 and the driven wheel 3. As the paper is pulled forward by the rewinding mechanism, the encoder wheel 21 rotates. The encoder 2 records the rotation of the encoder wheel 21 and sends a corresponding feed detection signal to the control system. When a paper jam occurs, the paper stops moving, and the encoder wheel 21 does not rotate. After the operator resolves the paper jam, the control system analyzes the paper feed before the jam based on the information detected by the encoder wheel 21. This analysis determines the overall printing progress and calculates the compensation required to continue printing, preventing issues such as misalignment or missing prints.

[0022] In some embodiments, a mounting base 31 is provided on the machine base, and a rocker arm 32 is hinged to the mounting base 31. The driven wheel 3 is disposed at the bottom of the rocker arm 32. When installing printing paper, the driven wheel 3 can be separated from the encoder wheel 21 by moving the rocker arm 32, forming a gap between the driven wheel 3 and the encoder wheel 21, which facilitates the printing paper to pass through the gap between the encoder wheel 21 and the driven wheel 3. Since after the drawing is printed, it is generally necessary to cut and remove the printed drawing, and then rewind the part of the drawing to be printed onto the winding mechanism for winding and pulling, the installation of printing paper often needs to be repeated multiple times. The use of the rocker arm 32 facilitates the separation of the encoder wheel 21 and the driven wheel 3, thereby providing convenience for the installation of printing paper. After the printing paper is passed through, the driven wheel 3 is pressed against the printing paper and the encoder wheel 21 by the rocker arm 32. This allows the encoder wheel 21 to rotate due to friction as the printing paper moves forward. The encoder 2 detects the amount of paper feed and feeds the detection information back to the control system. The control system records the information, which is used to calculate and evaluate the data in case of paper jams, so as to obtain an accurate compensation amount and meet the needs of compensating and correcting the printer's operation.

[0023] In some embodiments, a handle 33 is movably disposed on the mounting base 31, and a drive rod 331 is disposed on the handle 33. The cross-section of the drive rod 331 is butterfly-shaped, and a square hole is provided on the rocker arm 32 corresponding to the drive rod 331, through which the drive rod 331 passes. When the handle 33 is turned, the butterfly-shaped drive rod 331 rotates, thereby causing the rocker arm 32 to shift around the hinge axis through its engagement with the square hole, thus separating the encoder wheel 21 from the driven wheel 3, facilitating the installation of printing paper. After the printing paper is passed through the gap between the encoder wheel 21 and the driven wheel 3, the handle 33 is turned in the opposite direction, causing the rocker arm 32 to shift around the hinge axis, thereby pressing the driven wheel 3 against the encoder wheel 21.

[0024] In some embodiments, the mounting base 31 is provided with a plurality of holes, and the mounting base 31 is fixed by bolts passing through the holes and locking it to the machine base. By adjusting the relative position between the bolts and the holes, the installation height of the mounting base 31 can be adjusted, thereby adjusting the position of the driven wheel 3, so that the driven wheel 3 and the encoder wheel 21 can be kept in the corresponding positions, meeting the setting requirements of different machine bases, and ensuring that the relative distance between the encoder wheel 21 and the driven wheel 3 is convenient for collecting the actual feed distance of the printing paper.

[0025] In some embodiments, the winding mechanism is equipped with a detection module connected to the control system. The detection module detects the working feed amount of the winding mechanism and transmits it back to the control system. When a paper jam occurs, the detection module can synchronously compare the detection data with that of the encoder 2 to determine the specific offset of the winding mechanism, thereby improving the accuracy of the compensation calculation.

[0026] The present invention also provides a paper jam correction method for a plotter printer, based on the paper jam correction device for a plotter printer as described above, comprising the following steps:

[0027] Step 1: Pass the printing paper between the encoder wheel 21 and the driven wheel 3, and wind it onto the take-up mechanism;

[0028] Step 2: Start the winding mechanism to wind the printing paper, thereby pulling the printing paper forward to complete the printing of images and text.

[0029] Step 3: When a paper jam occurs, the paper jam detection sensor detects the abnormal paper delivery and sends a corresponding detection signal to the control system, thereby triggering a paper jam alarm and reminding the operator to handle the situation.

[0030] Step 4: The operator handles the paper jam and starts the plotter printer to continue printing;

[0031] Step 5: Before continuing the work, the control system analyzes the detection information recorded by encoder 2, replenishes the paper feed based on the calculated compensation data, and continues the printing process before the paper jam.

[0032] During printing, the rewinding mechanism pulls the paper forward to print graphics or text. Under normal paper feeding conditions, the paper passes between the encoder wheel 21 and the driven wheel 3. As the paper is pulled forward by the rewinding mechanism, the encoder wheel 21 rotates. The encoder 2 records the rotation of the encoder wheel 21 and sends a corresponding feed detection signal to the control system. When a paper jam occurs, the paper stops moving, and the encoder wheel 21 does not rotate. After the operator resolves the paper jam, the control system analyzes the paper feed before the jam based on the information detected by the encoder wheel 21. This analysis determines the overall printing progress and calculates the compensation required to continue printing, preventing issues such as misalignment or missing prints.

[0033] In some embodiments, in step 5, when the control system analyzes the detection information of the encoder 2, it simultaneously analyzes the information detected by the detection module on the winding mechanism. It compares and analyzes the detection information of the detection module when paper jams occur, and calculates the compensation amount. The detection module detects the working feed amount of the winding mechanism and transmits it back to the control system. When a paper jam occurs, the detection data from the detection module and encoder 2 can be compared synchronously to determine the specific offset of the winding mechanism, thereby improving the accuracy of the compensation calculation.

[0034] In summary, this invention records the rotation state of the encoder wheel 21 using the encoder 2, thereby sending a corresponding feed amount detection signal to the control system. When a paper jam occurs, the printing paper stops moving, so the encoder wheel 21 does not rotate. After the operator resolves the paper jam, the control system analyzes the paper feed amount before the jam based on the information detected by the encoder wheel 21, thereby determining the overall progress of the printing work and calculating the compensation amount required to continue printing to avoid affecting the printing quality of the drawings and preventing abnormalities such as misalignment or missing prints.

[0035] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A paper jam correction method for a plotter printer, applied in a paper jam correction device for a plotter printer, characterized in that, The paper jam correction device includes: a machine base, a winding mechanism disposed on the machine base, a fixed base disposed on the machine base, an encoder disposed on the fixed base, an encoder wheel connected to the encoder, and a driven wheel meshing with the encoder wheel. When the printing paper is pulled and stretched on the machine base, the printing paper is first passed between the encoder wheel and the driven wheel, and then the printing paper is wound onto the winding mechanism. The encoder is connected to the control system, and the encoder sends the rotation amount of the encoder wheel to the control system. The winding mechanism is provided with a detection module, and the detection module is connected to the control system. The paper jam correction method includes the following steps: Step 1: Pass the printing paper between the encoder wheel and the driven wheel, and wind it onto the take-up mechanism; Step 2: Start the winding mechanism to wind the printing paper, thereby pulling the printing paper forward to complete the printing of images and text. Step 3: When a paper jam occurs, the paper jam detection sensor detects the abnormal paper delivery and sends a corresponding detection signal to the control system, thereby triggering a paper jam alarm and reminding the operator to handle the situation. Step 4: The operator handles the paper jam and starts the plotter printer to continue printing; Step 5: Before continuing the work, the control system analyzes the detection information recorded by the encoder, analyzes the paper feed amount before the paper jam, and calculates the compensation amount required to continue printing based on the feed amount. The paper feed amount is supplemented according to the calculated compensation amount to continue the printing process before the paper jam. In step 5, when the control system analyzes the detection information recorded by the encoder, it simultaneously analyzes the information detected by the detection module on the winding mechanism, compares and analyzes the detection information of the detection module when the printing paper jams, and calculates the compensation amount.

2. The paper jam correction method for a drawing printer according to claim 1, characterized in that, The machine base is provided with a mounting base, and a rocker arm is hinged to the mounting base. The driven wheel is located at the bottom of the rocker arm.

3. The paper jam correction method for a drawing printer according to claim 2, characterized in that, A handle is movably mounted on the mounting base, and a drive rod is mounted on the handle. The cross-section of the drive rod is butterfly-shaped, and a square hole is provided on the rocker arm corresponding to the drive rod, through which the drive rod passes.

4. The paper jam correction method for a drawing printer according to claim 2, characterized in that, The mounting base has several holes. Bolts are passed through the holes and locked onto the machine base to fix the mounting base.

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