Paper jam deviation rectifying device and deviation rectifying method of drawing printer

Abstract

The invention discloses a paper jam deviation rectifying device and method of a drawing printer, the paper jam deviation rectifying device comprises a machine table, a winding mechanism, a fixing seat, an encoder, an encoder wheel and a driven wheel, when printing paper is drawn 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. According to the invention, the rotation state of the encoder wheel is recorded through the encoder, so that a detection signal of a corresponding feed amount is sent to a control system. When paper jam occurs, the printing paper stops moving, so that the encoder wheel does not rotate. After an operator restores the paper jam condition, the control system analyzes the feeding amount of printing paper before paper jam according to information detected by the encoder wheel, so that the overall process of printing work is judged, the compensation amount needing to be provided when printing work continues is calculated, the printing effect of drawings is prevented from being affected, and the printing efficiency of the drawings is improved. And abnormal conditions such as dislocation and through printing are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of plotter printers, and in particular to a paper jam correction device and a correction method for a plotter printer. Background Art

[0002] A plotting printer is a device that draws according to the graphics input in the system and can print out the computer output information in the form of graphics. With the support of drawing software, a plotting printer can draw complex and precise graphics and is an indispensable tool for various computer-aided design work. When printing drawings, roll-type printing paper is often used to feed the plotting printer, and the printing paper is pulled by the winding mechanism, so that the printing paper is pulled forward to complete the drawing printing work. In general, the control system will detect the number of rotations of the winding mechanism to record the feeding amount of the printing paper to meet the control of the drawing printing work. In the actual working process, paper jams sometimes occur, and it is necessary to deal with the paper jam problem before continuing to print the drawings. However, during the paper jam process, the winding mechanism continues to roll, but the printing paper cannot move forward due to the paper jam problem, causing the winding mechanism to slip and idle. This part of the rotation amount will also be recognized by the detection sensor. After the paper jam problem is dealt with, the system will calculate the part of the feeding amount of the winding mechanism idling into the printed feeding amount, resulting in abnormal final printing effect of the drawing.

[0003] Therefore, the prior art has defects and needs to be improved. Summary of the invention

[0004] The object of the present invention is to overcome the deficiencies of the prior art and to provide a paper jam correction device and a correction method for a plotter.

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

[0006] Furthermore, a mounting seat is provided on the machine platform, a rocker arm is hinged on the mounting seat, and the driven wheel is arranged at the bottom of the rocker arm.

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

[0008] Furthermore, the mounting seat is provided with a plurality of holes, and the mounting seat is fixed by bolts passing through the holes and being locked on the machine platform.

[0009] Furthermore, a detection module is provided on the winding mechanism, and the detection module is connected to a 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 around the winding mechanism;

[0012] Step 2: Start the reeling mechanism to reel up the printing paper, thereby pulling the printing paper forward and completing the work of printing images and texts on the printing paper;

[0013] Step 3: When a paper jam occurs, the paper jam detection sensor detects that the delivery of the printing paper is abnormal, and sends a corresponding detection signal to the control system, thereby issuing a paper jam alarm to remind the operator to handle it;

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

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

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

[0017] By adopting the above scheme, the present invention records the rotation state of the encoder wheel through the encoder, 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 will not rotate. After the operator recovers from the paper jam, the control system will analyze the feed amount of the printing paper before the paper jam based on the information detected by the encoder wheel, thereby judging the overall progress of the printing work, and calculating the compensation amount that needs to be provided when continuing the printing work, so as to avoid affecting the printing effect of the drawing, and avoid abnormal situations such as misalignment and missing printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0019] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] See also Figure 1 The present invention provides a paper jam correction device for a plotter, comprising: a machine platform, a winding mechanism arranged on the machine platform, a fixed seat 1 arranged on the machine platform, an encoder 2 arranged on the fixed seat 1, an encoder wheel 21 connected to the encoder 2, and a driven wheel 3 meshed with the encoder wheel 21. When the printing paper is pulled and stretched on the machine platform, the printing paper is first passed between the encoder wheel 21 and the driven wheel 3, and then the printing paper is wound on 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] When printing, the reeling mechanism will pull the printing paper forward to perform spray printing of graphics or text on the printing paper. When the printing paper is fed normally, since the printing paper passes between the encoder wheel 21 and the driven wheel 3, when the printing paper is pulled forward by the reeling mechanism, the encoder wheel 21 will rotate, so that the encoder 2 records the rotation state of the encoder wheel 21, and sends the corresponding feed amount detection signal to the control system. When a paper jam occurs, the printing paper stops moving, so the encoder wheel 21 will not rotate. After the operator recovers from the paper jam, the control system will analyze the feed amount of the printing paper before the paper jam based on the information detected by the encoder wheel 21, so as to judge the overall progress of the printing work, and calculate the compensation amount required to continue the printing work, so as to avoid affecting the printing effect of the drawings and avoid abnormal situations such as misalignment and missing printing.

[0022] In some embodiments, a mounting seat 31 is provided on the machine, a rocker arm 32 is hinged on the mounting seat 31, and the driven wheel 3 is provided at the bottom of the rocker arm 32. When installing the printing paper, the driven wheel 3 can be separated from the encoder wheel 21 by toggling the rocker arm 32, so that a gap is formed between the driven wheel 3 and the encoder wheel 21, so that the printing paper can pass through between the encoder wheel 21 and the driven wheel 3. After the drawing is printed, it is generally necessary to cut and take out the printed drawing, and then rewind the drawing part to be printed on the winding mechanism for winding and pulling, so it is often necessary to repeat the installation of the printing paper for many times. The rocker arm 32 is used to facilitate the separation of the encoder wheel 21 and the driven wheel 3, thereby facilitating the installation of the printing paper. After the printing paper passes through, the driven wheel 3 is pressed against the printing paper and the encoder wheel 21 by the rocker arm 32, so that when the printing paper moves forward, the encoder wheel 21 is pulled to rotate by the friction force, so that the feeding amount of the printing paper is detected by the encoder 2, and the detection information is fed back to the control system and recorded by the control system. In the event of a paper jam, the detection information data of the encoder 2 can be used for calculation and evaluation to obtain an accurate compensation amount to meet the needs of compensating and correcting the printer's operation.

[0023] In some embodiments, a handle 33 is movably provided on the mounting seat 31, and a driving rod 331 is provided on the handle 33. The cross section of the driving rod 331 is butterfly-shaped, and the rocker arm 32 is provided with a square hole corresponding to the driving rod 331, and the driving rod 331 passes through the square hole. When the handle 33 is bent, the butterfly-shaped driving rod 331 will rotate, so that the rocker arm 32 will be offset around the hinge axis through the cooperation with the square hole, so that the encoder wheel 21 is separated from the driven wheel 3, which is convenient for the installation of the printing paper. After the printing paper passes through the gap between the encoder wheel 21 and the driven wheel 3, the handle 33 is bent in the opposite direction, so that the rocker arm 32 is offset around the hinge axis, so that the driven wheel 3 is pressed against the encoder wheel 21.

[0024] In some embodiments, the mounting seat 31 is provided with a plurality of holes, and the mounting seat 31 is fixed by passing bolts through the holes and being locked on the machine. By adjusting the relative position between the bolts and the holes, the mounting height of the mounting seat 31 can be adjusted, that is, the position of the driven wheel 3 can be adjusted, so that the driven wheel 3 and the encoder wheel 21 can be kept at corresponding positions, meeting the setting requirements on different machines, and ensuring that the relative distance between the encoder wheel 21 and the driven wheel 3 is convenient for collecting the actual feeding distance of the printing paper.

[0025] In some embodiments, the winding mechanism is provided with a detection module, which is connected to the control system. The working feed amount of the winding mechanism is detected by the detection module and transmitted back to the control system. When a paper jam occurs, the detection module can be used to synchronously compare the detection data of the encoder 2 to determine the specific offset of the winding mechanism, thereby improving the calculation accuracy of the compensation amount.

[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 around the winding mechanism;

[0028] Step 2: Start the reeling mechanism to reel up the printing paper, thereby pulling the printing paper forward and completing the work of printing images and texts on the printing paper;

[0029] Step 3: When a paper jam occurs, the paper jam detection sensor detects that the delivery of the printing paper is abnormal, and sends a corresponding detection signal to the control system, thereby issuing a paper jam alarm to remind the operator to handle it;

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

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

[0032] When printing, the reeling mechanism will pull the printing paper forward to perform spray printing of graphics or text on the printing paper. When the printing paper is fed normally, since the printing paper passes between the encoder wheel 21 and the driven wheel 3, when the printing paper is pulled forward by the reeling mechanism, the encoder wheel 21 will rotate, so that the encoder 2 records the rotation state of the encoder wheel 21, and sends the corresponding feed amount detection signal to the control system. When a paper jam occurs, the printing paper stops moving, so the encoder wheel 21 will not rotate. After the operator recovers from the paper jam, the control system will analyze the feed amount of the printing paper before the paper jam based on the information detected by the encoder wheel 21, so as to judge the overall progress of the printing work, and calculate the compensation amount required to continue the printing work, so as to avoid affecting the printing effect of the drawings and avoid abnormal situations such as misalignment and missing printing.

[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, analyzes and compares the detection information of the detection module when the printing paper is jammed, and calculates the compensation amount. The working feed amount of the winding mechanism is detected by the detection module and transmitted back to the control system. When a paper jam occurs, the detection module can be used to synchronously compare the detection data of the encoder 2 to determine the specific offset of the winding mechanism, thereby improving the calculation accuracy of the compensation amount.

[0034] In summary, the present invention records the rotation state of the encoder wheel 21 through 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 recovers from the paper jam, the control system will analyze the feed amount of the printing paper before the paper jam based on the information detected by the encoder wheel 21, thereby judging the overall progress of the printing work, and calculating the compensation amount that needs to be provided when continuing the printing work, so as to avoid affecting the printing effect of the drawings and avoid abnormal situations such as misalignment and missing printing.

[0035] The above are only 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 in the protection scope of the present invention.

Claims

1. A paper jam correction device for a plotter, characterized in that: include: A machine platform, a winding mechanism arranged on the machine platform, a fixed seat arranged on the machine platform, an encoder arranged on the fixed seat, an encoder wheel connected to the encoder, and a driven wheel meshed with the encoder wheel. When the printing paper is pulled and stretched on the machine platform, the printing paper is first passed between the encoder wheel and the driven wheel, and then the printing paper is wound on the winding mechanism. The encoder is connected to a control system, and the encoder sends the rotation amount of the encoder wheel to the control system.

2. The paper jam correction device for a plotter according to claim 1, characterized in that: The platform is provided with a mounting seat, a rocker arm is hinged on the mounting seat, and the driven wheel is arranged at the bottom of the rocker arm.

3. The paper jam correction device of the plotter according to claim 2, characterized in that: A handle is movably provided on the mounting seat, a driving rod is provided on the handle, the cross section of the driving rod is butterfly-shaped, a square hole is provided on the rocker arm corresponding to the driving rod, and the driving rod passes through the square hole.

4. The paper jam correction device for a plotter according to claim 2, characterized in that: The mounting seat is provided with a plurality of holes, and the mounting seat is fixed by bolts passing through the holes and being locked on the machine platform.

5. The paper jam correction device for a plotter according to claim 1, characterized in that: The winding mechanism is provided with a detection module, and the detection module is connected to a control system.

6. A paper jam correction method for a plotter printer, based on the paper jam correction device for a plotter printer according to any one of claims 1 to 5, characterized in that: The steps include: Step 1: Pass the printing paper between the encoder wheel and the driven wheel, and wind it around the winding mechanism; Step 2: Start the reeling mechanism to reel up the printing paper, thereby pulling the printing paper forward and completing the work of printing images and texts on the printing paper; Step 3: When a paper jam occurs, the paper jam detection sensor detects that the delivery of the printing paper is abnormal, and sends a corresponding detection signal to the control system, thereby issuing a paper jam alarm to remind the operator to handle it; Step 4: The operator handles the paper jam and starts the plotter to continue printing; Step 5: Before continuing the work, the control system analyzes the detection information recorded by the encoder, supplements the feed amount of the printing paper according to the calculated compensation data, and continues the printing process before the paper jam.

7. The paper jam correction method of a plotter printer according to claim 6, characterized in that: In step 5, when the control system analyzes the detection information of the encoder, it simultaneously analyzes the information detected by the detection module on the winding mechanism, analyzes and compares the detection information of the detection module when the printing paper jams, and calculates the compensation amount.

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