High-precision plate sticking rack

Abstract

The application relates to a high-precision plate sticking frame, which comprises a support, a clamping assembly arranged on the support and used for clamping a printing roller, a bearing rod parallel to the printing roller is rotatably arranged on the support, and a scale is arranged on the bearing rod. The application has the effect of improving the position accuracy of the relief label paper replacement.

Description

Technical Field

[0001] This application relates to the field of letterpress printing technology, and in particular to a high-precision plate holder. Background Technology

[0002] Letterpress printing is a traditional printing method characterized by the use of raised printing plates, which offers strong expressive power, flexible production, and a long service life.

[0003] Since printing presses often need to print different label patterns, the letterpress label paper on the existing letterpress printing rollers is fixed by pasting and can be replaced according to the actual printing requirements.

[0004] However, the new label paper determines the pasting position by using the pasting marks on the old label paper, and the manual pasting process is prone to positional errors, thus having obvious shortcomings. Utility Model Content

[0005] To improve the accuracy of changing the position of letterpress label paper, this application provides a high-precision label holder.

[0006] The high-precision plate mounting frame provided in this application adopts the following technical solution:

[0007] A high-precision plate mounting frame includes a support and a clamping assembly arranged on the support for clamping a printing roller. A support rod parallel to the printing roller is rotatably mounted on the support, and a scale is arranged on the support rod.

[0008] By employing the above technical solution, the clamping assembly holds the printing roller. The worker then tears off the old label and attaches one edge of the new label to the designated position. The ruler is then rotated close to the new label to check its accuracy. If the position is inaccurate, adjustments are made; if accurate, the entire new label is adhered to the printing roller. Using the ruler to check the label replacement position improves replacement precision.

[0009] Optionally, the clamping assembly includes a fixed clamping plate arranged on the bracket and a movable clamping plate slidably passing through the bracket. The printing roller is located between the fixed clamping plate and the movable clamping plate, and a compression spring is provided between the side of the movable clamping plate facing away from the printing roller and the bracket.

[0010] By adopting the above technical solution, during installation, the worker manually pulls the movable clamp away from the fixed clamp. The movable clamp, together with the bracket, compresses the spring. Then, the printing roller is placed between the movable and fixed clamps. After that, the movable clamp is released, and the deformation force of the spring pushes the movable clamp to press the printing roller against the fixed clamp, thus achieving clamping of the printing roller. The operation is convenient.

[0011] Optionally, a guide tube is arranged on the bracket, and the movable clamp slides and rotates through the guide tube.

[0012] By adopting the above technical solution, the sliding fit between the guide cylinder and the movable clamping plate is highly accurate, which can improve the accuracy and stability of the horizontal clamping motion of the movable clamping plate.

[0013] Optionally, the movable clamping plate has a screw handle at the end opposite to the printing roller, and the screw handle has anti-slip texture.

[0014] By adopting the above technical solution, the twisting handle makes it easier for workers to turn the printing rollers.

[0015] Optionally, the bracket is provided with a support plate for supporting the ruler, and the angle between the ruler pressing against the printing roller and the support plate is 120°.

[0016] By adopting the above technical solution, the support frame restricts the rotation angle of the ruler, thereby making it easier for workers to turn the ruler.

[0017] Optionally, a spool is arranged on the support frame, and a counterweight ball is attached to the scale by a pull line, the pull line passing over the spool.

[0018] By adopting the above technical solution, when the worker rotates the scale close to the printing roller, the pull line pulls the counterweight ball upward. When the scale is used up, the worker only needs to release the scale, and the counterweight ball descends under the action of gravity, thereby automatically rotating the scale away from the printing roller by pulling the pull line, which improves the ease of label replacement.

[0019] Optionally, a deflection bar is hinged to the bracket, and a groove parallel to the printing roller is formed on the deflection bar. A slider slides in the groove, and a pressure wheel is rotatably arranged on the slider. A tension spring is arranged between the slider and the end of the groove near the deflection bar that is hinged.

[0020] By adopting the above technical solution, after the worker sticks the new label paper onto the printing roller, the deflection strip is rotated onto the printing roller, and then the printing roller is rotated until the edge of the new label paper in the length direction is directly below the deflection strip. Then the slider is manually moved to slide, so that the edge pressing wheel can press the edge of the new label paper a second time, reducing the possibility of edge curling.

[0021] Optionally, the scale is slidably sleeved on the support rod, and the scale is threaded with a positioning bolt for abutting against the support rod.

[0022] By adopting the above technical solution, workers can adjust the position of the ruler on the support rod, thereby making it suitable for the position calibration of labels of different sizes.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The clamping assembly holds the printing roller. The worker then tears off the old label and attaches one edge of the new label to the designated position. The ruler is rotated close to the new label to check its accuracy. If the position is inaccurate, adjustments are made; if accurate, the entire new label is then attached to the printing roller. Using the ruler to check the label replacement position improves replacement precision.

[0025] 2. During installation, the worker manually pulls the movable clamp away from the fixed clamp. The movable clamp, together with the bracket, compresses the spring. Then, the printing roller is placed between the movable and fixed clamps. After that, the movable clamp is released, and the deformation force of the spring pushes the movable clamp to press the printing roller against the fixed clamp, thus clamping the printing roller. The operation is convenient.

[0026] 3. When the worker rotates the scale close to the printing roller, the pull cable pulls the counterweight ball upward. When the scale is used up, the worker simply releases the scale, and the counterweight ball descends under gravity, thus automatically rotating the scale away from the printing roller via the pull cable, improving the ease of label replacement;

[0027] 4. After the worker attaches the new label paper to the printing roller, the deflection bar is rotated onto the printing roller, and then the printing roller is rotated until the edge of the new label paper along its length is directly below the deflection bar. Then the slider is manually moved to allow the edge-pressing roller to press the edge of the new label paper a second time, reducing the possibility of edge curling. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0029] Figure 2 This is a schematic diagram showing the positional relationship between the string, the counterweight ball, and the ruler in an embodiment of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Support; 2. Printing roller; 3. Bearing rod; 4. Scale; 5. Fixed clamp; 6. Movable clamp; 7. Compression spring; 8. Guide cylinder; 9. Tightening handle; 11. Support plate frame; 12. Thread wheel; 13. Counterweight ball; 14. Pull line; 15. Deflection bar; 151. Slide groove; 16. Slider; 18. Pressure wheel; 19. Positioning bolt. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0032] This application discloses a high-precision plate mounting rack.

[0033] Reference Figure 1 The high-precision plate holder includes a U-shaped support 1 and a clamping assembly arranged on the support 1 for clamping the printing roller 2.

[0034] Reference Figure 1 The clamping assembly includes a fixed clamp 5 rotatably arranged on the bracket 1 and a movable clamp 6 slidably passing through the bracket 1. The printing roller 2 is located on the bracket 1 between the fixed clamp 5 and the movable clamp 6. A compression spring 7 is provided between the movable clamp 6 and the bracket 1 on the side facing away from the printing roller 2.

[0035] Reference Figure 1 A guide cylinder 8 is bolted to the bracket 1, and a movable clamping plate 6 slides and rotates through the guide cylinder 8. A tightening handle 9 is bolted to the end of the sliding clamping plate away from the printing roller 2, and the tightening handle 9 is provided with anti-slip texture (not shown in the figure).

[0036] Reference Figure 1 The support 1 is mounted on a rotating support rod 3 parallel to the printing roller 2. A scale 4 is slidably mounted on the support rod 3. A positioning bolt 19 for pressing against the outer circumference of the support rod 3 is threaded onto the scale 4.

[0037] Reference Figure 1 The bracket 1 is bolted with a support plate frame 11 for supporting the ruler 4. The angle between the ruler 4 and the support plate frame 11 is 120°. An elastic pad (not shown in the figure) is glued to the support plate frame 11 at the position for supporting the ruler 4. The elastic pad changes the rigid contact between the ruler 4 and the support plate frame 11 into a flexible contact, reducing the impact intensity.

[0038] Reference Figure 1 and Figure 2 A spool 12 is mounted on the support frame 11. A counterweight ball 13 is attached to the scale 4 by a pull line 14. The counterweight ball 13 is made of metal, and the pull line 14 passes over the spool 12.

[0039] Reference Figure 1 and Figure 2 During installation, the worker manually pulls the movable clamp 6 away from the fixed clamp 5. The movable clamp 6, together with the bracket 1, compresses the spring 7. Then, the printing roller 2 is placed between the movable clamp 6 and the fixed clamp 5. After that, the movable clamp 6 is released, and the deformation force of the spring 7 pushes the movable clamp 6 to press the printing roller 2 against the fixed clamp 5, thereby achieving the clamping of the printing roller 2.

[0040] Reference Figure 1 and Figure 2Afterwards, the worker wiped the printing roller 2 clean with a cloth and then peeled the old label off the printing roller 2. The edge of the new label along its length was first attached to the printing roller 2. The ruler 4 was rotated to be close to the new label to observe whether the position of the new label was accurate. If the position was not accurate, it was adjusted. If it was accurate, the entire new label was attached to the printing roller 2.

[0041] Reference Figure 1 and Figure 2 A deflector bar 15 is hinged to the bracket 1. A groove 151 parallel to the printing roller 2 is opened on the deflector bar 15. A slider 16 slides in the groove 151. A pressure wheel 18 is rotatably arranged on the slider 16. A tension spring (not shown in the figure) is arranged between the slider 16 and the end of the groove 151 near the deflector bar 15.

[0042] Reference Figure 1 and Figure 2 After the worker attaches the new label paper to the printing roller 2, the deflection bar 15 is rotated onto the printing roller 2, and then the printing roller is rotated until the edge of the new label paper in the length direction is directly below the deflection bar 15. Then the slider 16 is manually moved to slide, so that the edge pressing wheel 18 can press the edge of the new label paper a second time, reducing the possibility of edge curling.

[0043] The implementation principle of a high-precision plate mounting frame according to an embodiment of this application is as follows: During installation, the worker manually pulls the movable clamping plate 6 away from the fixed clamping plate 5. The movable clamping plate 6, together with the bracket 1, compresses the spring 7. Then, the printing roller 2 is placed between the movable clamping plate 6 and the fixed clamping plate 5. After that, the movable clamping plate 6 is released, and the deformation force of the spring 7 pushes the movable clamping plate 6 to press the printing roller 2 against the fixed clamping plate 5, thereby achieving the clamping of the printing roller 2.

[0044] Afterwards, the worker wipes the printing roller 2 clean with a cloth and then peels the old label off the printing roller 2. The edge of the new label along its length is first attached to the printing roller 2. The ruler 4 is rotated to be close to the new label to observe whether the position of the new label is accurate. If the position is not accurate, it is adjusted. If it is accurate, the entire new label is attached to the printing roller 2.

[0045] After the worker attaches the new label paper to the printing roller 2, he rotates the deflection bar 15 onto the printing roller 2, and then rotates the printing roller until the edge of the new label paper in the length direction is directly below the deflection bar 15. Then, he manually moves the slider 16 to slide, so that the edge pressing roller 18 can press the edge of the new label paper a second time.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-precision plate mounting rack, characterized in that: It includes a bracket (1) and a clamping assembly arranged on the bracket (1) for clamping the printing roller (2). A support rod (3) parallel to the printing roller (2) is rotatably mounted on the bracket (1), and a scale (4) is arranged on the support rod (3).

2. The high-precision plate mounting frame according to claim 1, characterized in that: The clamping assembly includes a fixed clamping plate (5) arranged on the bracket (1) and a movable clamping plate (6) slidably passing through the bracket (1). The printing roller (2) is located between the fixed clamping plate (5) and the movable clamping plate (6). A compression spring (7) supports the side of the movable clamping plate (6) facing away from the printing roller (2) and the bracket (1).

3. The high-precision plate mounting frame according to claim 2, characterized in that: A guide tube (8) is arranged on the bracket (1), and the movable clamp (6) slides and rotates through the guide tube (8).

4. The high-precision plate mounting frame according to claim 2, characterized in that: The movable clamp (6) has a screw handle (9) at the end opposite to the printing roller (2), and the screw handle (9) has anti-slip texture.

5. The high-precision plate mounting frame according to claim 1, characterized in that: The bracket (1) is provided with a support plate frame (11) for supporting the ruler (4), and the ruler (4) is pressed against the printing roller (2) at an angle of 120° between the support plate frame (11).

6. The high-precision plate mounting frame according to claim 5, characterized in that: A spool (12) is arranged on the support frame (11), and a counterweight ball (13) is attached to the scale (4) by a pull line (14), which passes over the spool (12).

7. The high-precision plate mounting frame according to claim 1, characterized in that: A deflection bar (15) is hinged to the bracket (1). A groove (151) parallel to the printing roller (2) is provided on the deflection bar (15). A slider (16) slides in the groove (151). A pressure wheel (18) is rotatably arranged on the slider (16). A tension spring is arranged between the slider (16) and the end of the groove (151) near the deflection bar (15) that is hinged.

8. The high-precision plate mounting frame according to claim 7, characterized in that: The scale (4) is slidably sleeved on the bearing rod (3), and the scale (4) is threaded with a positioning bolt (19) for pressing against the bearing rod (3).

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