Special paper gripper for split double-color offset press

Abstract

The utility model discloses a special paper gripper for a split double-color offset press, which comprises a split double-color offset press gripper bar shaft, a shaft groove is arranged on the split double-color offset press gripper bar shaft, and a plurality of first mounting plates and a plurality of second mounting plates are respectively and movably mounted in the shaft groove. The two corresponding first mounting plates and the corresponding second mounting plate are fixedly provided with the same paper gripper main body, and the two corresponding first mounting plates are internally provided with flitch plates through limiting mechanisms, so that one side of each flitch plate is tightly attached to the inner wall of one side of the shaft groove, and the flitch plates are tightly attached to the inner wall of one side of the shaft groove; the paper gripper main bodies are fixedly mounted at proper positions on a gripper shaft of the split double-color offset press, so that the distance between the two paper gripper main bodies is calibrated to match with the size of paper, the situation that the edge of the paper is curled in the paper gripping and conveying process is reduced, meanwhile, the situation that the paper is wrinkled or inclined is also reduced, and the paper gripping and conveying efficiency is improved. And the smooth operation of the tooth row shaft printing operation of the split double-color offset press is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of offset printing machine accessories, in particular to a special paper biting tooth for a double-color offset printing machine. Background Art

[0002] With the rapid development of science and technology, various new technologies of modern packaging and printing machinery have emerged. The double-color offset printing machine is a printing equipment, usually used for printing two-color graphics, trademarks, labels and other products. At present, the bite teeth row used in the double-color offset printing machine adopts a fixed arrangement, and the size and position are fixed.

[0003] The current double-color offset printing press uses a fixed arrangement of special bite teeth. When the paper size changes during the production and printing process, the edge of the paper exceeds the edge bite teeth by 0-5mm. When the printing speed is too fast, the wind generated during the paper transmission causes the edge of the low-weight paper to curl easily. When the teeth bite the paper, the paper easily hits the edge bite teeth, causing paper wrinkles or paper tilt, resulting in poor paper printing. We have proposed a special bite tooth for double-color offset printing presses to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a special bite tooth for a folio two-color offset printing machine, which is used to solve the above problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A special bite arm for a folio two-color offset printing machine comprises a bite arm shaft of the folio two-color offset printing machine, wherein the bite arm shaft is provided with an axis groove, wherein a plurality of first mounting plates and a plurality of second mounting plates are movably mounted in the axis groove, wherein the same bite arm body is fixedly mounted on two corresponding first mounting plates and a corresponding second mounting plate, wherein a pasting plate is installed in the two corresponding first mounting plates via a limiting mechanism, wherein a side groove is provided on the bite arm body, and a fastener mechanism for the side groove is provided on one side of the pasting plate.

[0007] Preferably, the shaft groove is arranged in an I-shaped structure, and the corresponding two first mounting plates and the corresponding second mounting plates are respectively located on both sides of the shaft groove, so as to facilitate the two first mounting plates and the second mounting plates in the paper bite tooth body to slide in the shaft groove, thereby adjusting the position of the paper bite tooth body.

[0008] Preferably, the paper-gripping tooth body is slidably connected to the tooth bar shaft of the folio two-color offset printing press, and the number of the paper-gripping tooth bodies is set to multiple. By adjusting the positions of the corresponding two paper-gripping tooth bodies on the tooth bar shaft of the folio two-color offset printing press, the edges of the two paper-gripping tooth bodies are aligned with the edges of the paper, thereby reducing the occurrence of paper edge curling during the paper-gripping transmission process.

[0009] Preferably, the limiting mechanism includes a plate groove and a plate. A plate groove is provided on the side where the two first mounting plates are close to each other. Plates are movably installed in the two plate grooves. The side where the two plates are close to each other is fixedly connected to the sticking plate, so that the two plates on the sticking plate can move toward the second mounting plate in the corresponding plate grooves respectively.

[0010] Preferably, the sticking plate is movably installed on one side of the shaft groove, and one side of the sticking plate is tightly attached to the inner wall of one side of the shaft groove. When one side of the sticking plate is tightly attached to the inner wall of one side of the shaft groove, the position of the paper bite body is fixed.

[0011] Preferably, the fastener mechanism includes a bolt rod and a nut, one end of the plate passes through the second mounting plate and the outside of the paper-gripping tooth body through the shaft groove and is threadedly installed with a nut, one side of the nut is tightly attached to the side groove, and when the nut is tightly screwed on the side groove, one side of the plate is tightly attached to the inner wall of one side of the shaft groove, thereby fixing the paper-gripping tooth body at a suitable position on the tooth row shaft of the double-color offset printing machine.

[0012] Compared with the prior art, the beneficial effect of the utility model is as follows: the special bite tooth of the folio two-color offset printing machine calibrates the two corresponding bite tooth bodies on the tooth bar shaft of the folio two-color offset printing machine so that the edges of the two bite tooth bodies are aligned with the edges of the paper, and then, by adjusting the two fastener mechanisms in turn, one side of the pasting plate is tightly fitted to the inner wall of one side of the shaft groove, thereby achieving the fixed installation of the bite tooth body at a suitable position on the tooth bar shaft of the folio two-color offset printing machine, thereby completing the calibration of the distance between the two bite tooth bodies to match the size of the paper, reducing the occurrence of paper edge curling during the bite transmission process, and also reducing the situation of paper wrinkling or tilting, thereby ensuring the smooth printing operation of the tooth bar shaft of the folio two-color offset printing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the structure of the utility model in partial section;

[0015] Figure 3 This is a schematic diagram of the structure of the utility model in a partial cross-section from an explosion perspective;

[0016] Figure 4 For this utility model Figure 3 Schematic diagram of the structure of part A.

[0017] In the figure: 1. tooth bar shaft of double-color offset printing machine; 2. shaft groove; 3. first mounting plate; 4. second mounting plate; 5. paper-gripping tooth body; 6. plate groove; 7. plate plate; 8. pasting plate; 9. side groove; 10. bolt rod; 11. nut. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example: Refer to Figure 1-4 The invention discloses a paper-gripping tooth for a folio two-color offset printing machine, comprising a tooth bar shaft 1 of a folio two-color offset printing machine, a shaft groove 2 is provided on the tooth bar shaft 1 of the folio two-color offset printing machine, a plurality of first mounting plates 3 and a plurality of second mounting plates 4 are movably installed in the shaft groove 2, a same paper-gripping tooth body 5 is fixedly installed on two corresponding first mounting plates 3 and a corresponding second mounting plate 4, a pasting plate 8 is installed in the corresponding two first mounting plates 3 through a limiting mechanism, the limiting mechanism comprises a plate groove 6 and a plate 7, a plate groove 6 is provided on the side of the corresponding two first mounting plates 3 close to each other, a plate 7 is movably installed in the two plate grooves 6, and a side of the two plates 7 close to each other is fixedly connected with the pasting plate 8 , so that the two plates 7 on the pasting plate 8 can move toward the second mounting plate 4 in the corresponding plate groove 6 respectively; a side groove 9 is opened on the paper-gripping tooth body 5, and a fastener mechanism for the side groove 9 is arranged on one side of the pasting plate 8, and the fastener mechanism includes a bolt rod 10 and a nut 11. One end of the pasting plate 8 passes through the second mounting plate 4 and the outside of the paper-gripping tooth body 5 through the shaft groove 2 and is threadedly installed with a nut 11, and one side of the nut 11 is tightly attached to the side groove 9. When the nut 11 is tightly screwed on the side groove 9, one side of the pasting plate 8 is tightly attached to the inner wall of one side of the shaft groove 2, thereby realizing the fixed installation of the paper-gripping tooth body 5 at a suitable position on the tooth row shaft 1 of the double-color offset printing machine.

[0020] Furthermore, the shaft groove 2 is arranged in an I-shaped structure, and the corresponding two first mounting plates 3 and the corresponding second mounting plates 4 are respectively located on both sides of the shaft groove 2, so as to facilitate the two first mounting plates 3 and the second mounting plates 4 in the paper-biting tooth body 5 to slide in the shaft groove 2, thereby adjusting the position of the paper-biting tooth body 5.

[0021] Furthermore, the paper-biting tooth body 5 is slidably connected to the tooth bar shaft 1 of the folio two-color offset printing machine, and the number of the paper-biting tooth body 5 is set to be multiple. By adjusting the positions of the corresponding two paper-biting tooth bodies 5 on the tooth bar shaft 1 of the folio two-color offset printing machine, the edges of the two paper-biting tooth bodies 5 are aligned with the edges of the paper, thereby reducing the occurrence of paper edge curling during the paper-biting transmission process.

[0022] Furthermore, the sticking plate 8 is movably installed on one side of the shaft groove 2, and one side of the sticking plate 8 is tightly attached to the inner wall of one side of the shaft groove 2. When one side of the sticking plate 8 is tightly attached to the inner wall of one side of the shaft groove 2, the position of the paper biting tooth body 5 is fixed.

[0023] During use: When printing papers of different sizes, the operator first needs to calibrate the spacing of the multiple paper-gripping tooth bodies 5 on the tooth row shaft 1 of the double-color offset printing machine, and adjust the corresponding two paper-gripping tooth bodies 5 in turn according to the size of the paper edge, so that the edges of the two paper-gripping tooth bodies 5 are aligned with the paper edge, and the nut 11 is threadedly installed on one end of the bolt rod 10 by using a wrench. As the nut 11 is continuously screwed toward the pasting plate 8, the two plates 7 on the pasting plate 8 are respectively moved in the corresponding plate grooves 6 toward the second mounting plate 4. When the nut 1 When the paper-gripping tooth body 5 is tightly screwed on the side groove 9, one side of the pasting plate 8 is tightly fitted on the inner wall of one side of the shaft groove 2, thereby realizing the fixing of the paper-gripping tooth body 5 on the appropriate position of the tooth bar shaft 1 of the bi-color offset printing machine. Repeat the operation to fix the position of the other paper-gripping tooth body 5 aligned with the edge of the paper, so that the edges of the two paper-gripping tooth bodies 5 are aligned with the edge of the paper, thereby reducing the curling of the edge of the paper during the paper-gripping and conveying process, and also reducing the wrinkling or tilting of the paper, thereby ensuring the smooth printing operation of the tooth bar shaft 1 of the bi-color offset printing machine.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A paper-gripping tooth for a two-color offset printing machine, comprising a tooth bar shaft (1) for a two-color offset printing machine, characterized in that: The tooth bar shaft (1) of the split double-color offset printing machine is provided with a shaft groove (2), a plurality of first mounting plates (3) and a plurality of second mounting plates (4) are movably mounted in the shaft groove (2), a same paper-gripping tooth body (5) is fixedly mounted on two corresponding first mounting plates (3) and a corresponding second mounting plate (4), a pasting plate (8) is mounted in the two corresponding first mounting plates (3) via a limiting mechanism, a side groove (9) is provided on the paper-gripping tooth body (5), and a fastener mechanism for the side groove (9) is arranged on one side of the pasting plate (8).

2. The special bite for a folio two-color offset printing press according to claim 1, characterized in that: The shaft groove (2) is arranged in an I-shaped structure, and the two corresponding first mounting plates (3) and the corresponding second mounting plate (4) are respectively located on both sides of the shaft groove (2).

3. The special bite for a folio two-color offset printing press according to claim 1, characterized in that: The paper-gripping tooth body (5) is slidably connected to the tooth bar shaft (1) of the double-color offset printing machine, and the number of the paper-gripping tooth body (5) is set to be multiple.

4. The special bite for a folio two-color offset printing press according to claim 1, characterized in that: The limiting mechanism comprises a plate groove (6) and a plate (7), wherein the plate groove (6) is provided on the side where the two first mounting plates (3) are close to each other, and the plates (7) are movably installed in the two plate grooves (6), and the side where the two plates (7) are close to each other is fixedly connected to the sticking plate (8).

5. The special bite for a folio two-color offset printing press according to claim 1, characterized in that: The sticking plate (8) is movably mounted on one side of the shaft groove (2), and one side of the sticking plate (8) is tightly attached to an inner wall of one side of the shaft groove (2).

6. The special bite for a folio two-color offset printing press according to claim 1, characterized in that: The fastener mechanism comprises a bolt rod (10) and a nut (11); one end of the plate (8) passes through the second mounting plate (4) and the outside of the paper bit body (5) through the shaft groove (2) and is threadedly mounted with a nut (11); one side of the nut (11) is tightly attached to the side groove (9).

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