Printing machine with roller adjusting mechanism

Abstract

The utility model discloses a printing machine with a roller adjusting mechanism, which belongs to the technical field of printing machines and comprises a base, two supports arranged on the top surface of the base, a printing roller arranged between the two supports, and a first motor arranged on the outer side of the support on the right side and used for driving the printing roller. An auxiliary roller is arranged below the printing roller, moving seats are arranged on the left side and the right side of the auxiliary roller, first sliding grooves matched with the moving seats are formed in the support, and adjusting mechanisms are arranged below the moving seats. The two ends of the auxiliary roller are provided with the moving seats, the support is provided with the first sliding grooves matched with the moving seats, the adjusting mechanism is installed below the moving seats, the moving seats are driven by the adjusting mechanism to ascend or descend, and therefore the distance between the printing roller and the auxiliary roller is adjusted, printing stocks with different thicknesses can be printed, and the printing efficiency is improved. And the application range of the printing machine is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of printing presses, in particular to a printing press with a roller adjusting mechanism. Background Art

[0002] The Chinese patent with application number 202122205587.8 discloses an ink printing machine, which is connected to the base through two brackets, the printing roller is connected to the two brackets, the auxiliary roller is connected to the two brackets, the ink box is connected to the two brackets, the motor is connected to the bracket, the rotating shaft is connected to the motor output end, the inner rings of the two bearings are fixedly connected to the rotating shaft, the outer rings of the two bearings are fixedly connected to the ink box, the sealing plate is connected to the rotating shaft, the smear sponge is connected to the ink box, and the motor drives the rotating shaft to drive the sealing plate to rotate in the direction of the smear sponge, so that the ink flows from the gap between the sealing plate and the ink box to the smear sponge. The positions of the printing roller and the auxiliary roller of the printing machine are fixed, the spacing between the printing roller and the auxiliary roller is fixed, and only one thickness of substrate is printed, and the scope of use is narrow. Utility Model Content

[0003] The utility model aims to provide a printing press with a roller adjustment mechanism, so as to solve the problem that the positions of the printing roller and the auxiliary roller of the printing press in the prior art are fixed, the spacing between the printing roller and the auxiliary roller is fixed, only one thickness of substrate can be printed, and the application range is narrow.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The utility model discloses a printing machine with a roller adjustment mechanism, comprising a base, wherein two brackets are arranged on the top surface of the base, a printing roller is arranged between the two brackets, a first motor for driving the printing roller is arranged on the outer side of the bracket located on the right side, an auxiliary roller is arranged below the printing roller, a movable seat is arranged on the left and right sides of the auxiliary roller, a first slide groove matching the movable seat is arranged on the bracket, and an adjustment mechanism is arranged below the movable seat; the adjustment mechanism comprises a shell, which is arranged on the outer side of the bracket, an adjustment motor is arranged on the outer side of the shell, an output shaft of the adjustment motor extends to the inside of the shell and is connected with a first gear, a second gear is meshed and connected with the front and rear sides of the first gear, a half gear is arranged on the central axis of the second gear, a rack is arranged between the two half gears, a push plate is arranged on the top of the rack, and the push plate is connected with the movable seat.

[0006] Furthermore, the auxiliary roller includes two first rollers, a second roller is detachably connected between the two first rollers, a connecting shaft is provided on a side of the first roller away from the second roller, and an outer end of the connecting shaft is rotatably connected to the movable seat.

[0007] Furthermore, a plurality of positioning posts are arranged on the end face of the first roller away from the connecting shaft, and positioning holes matching the positioning posts are arranged on both the left and right end faces of the second roller.

[0008] Furthermore, the number of the positioning posts and the number of the positioning holes are both set to four, and the positions of the four positioning holes correspond one-to-one to the positions of the four positioning posts.

[0009] Furthermore, a limit block is arranged on the top of the shell, and a second slide groove matching the push plate is arranged on the limit block.

[0010] Compared with the prior art, the beneficial technical effects of the utility model are:

[0011] In the utility model, moving seats are installed at both ends of the auxiliary roller, a first slide groove matching the moving seat is opened on the bracket, and an adjusting mechanism is installed below the moving seat. The adjusting mechanism is used to drive the moving seat to rise or fall, so as to adjust the distance between the printing roller and the auxiliary roller. The printing materials with different thicknesses can be printed, which expands the application range of the printing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model will be further described below in conjunction with the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the structure of the printing press with a roller adjustment mechanism according to the utility model from a main viewing angle;

[0014] Figure 2 It is a side view of a printing press with a roller adjustment mechanism of the utility model;

[0015] Figure 3 It is a cross-sectional view of a printing press with a roller adjustment mechanism according to the utility model from a side view angle;

[0016] Figure 4 for Figure 1 The enlarged view of point A in the middle;

[0017] Figure 5 It is a side view of the adjustment mechanism of the utility model;

[0018] Figure 6 It is a three-dimensional structural schematic diagram of the adjustment mechanism of the utility model;

[0019] Figure 7It is a three-dimensional structural schematic diagram of the mobile seat of the utility model;

[0020] Figure 8 It is a three-dimensional structural schematic diagram of the first roller of the utility model;

[0021] Fig. 9 It is a three-dimensional structural schematic diagram of the second roller of the utility model.

[0022] Explanation of the accompanying drawings: 1. base; 2. bracket; 2-1. first slide groove; 3. printing roller; 4. auxiliary roller; 4-1. first roller; 4-1-1. positioning column; 4-2. second roller; 4-2-1. positioning hole; 4-3. connecting shaft; 5. movable seat; 6. adjustment mechanism; 6-1. housing; 6-2. adjustment motor; 6-3. first gear; 6-4. second gear; 6-5. half gear; 6-6. rack; 6-7. push plate; 6-8. limit block; 7. first motor; 8. ink box; 8-1. feed port; 8-2. discharge port; 9. second motor; 10. rotating shaft; 11. sealing plate; 12. smear sponge; 13. mounting frame; 14. scraper; 15. receiving box. DETAILED DESCRIPTION

[0023] like Figure 1-9 As shown, a printing machine with a roller adjustment mechanism includes a base 1, two brackets 2 are connected to the top surface of the base 1, a printing roller 3 is installed between the two brackets 2, a first motor 7 for driving the printing roller 3 is installed on the outer side of the bracket 2 located on the right, an auxiliary roller 4 is arranged below the printing roller 3, a moving seat 5 is installed on the left and right sides of the auxiliary roller 4, a first slide groove 2-1 matching the moving seat 5 is opened on the bracket 2, and an adjustment mechanism 6 is installed below the moving seat 5.

[0024] like Figure 4-6 As shown, the adjusting mechanism 6 includes a shell 6-1, the shell 6-1 is connected to the outside of the bracket 2, an adjusting motor 6-2 is installed on the outside of the shell 6-1, the output shaft of the adjusting motor 6-2 extends to the inside of the shell 6-1 and is connected to the first gear 6-3, the front and rear sides of the first gear 6-3 are meshed with the second gear 6-4, a half gear 6-5 is installed on the central axis of the second gear 6-4, a rack 6-6 is arranged between the two half gears 6-5, a push plate 6-7 is connected to the top of the rack 6-6, and the push plate 6-7 is connected to the moving seat 5; a limiting block 6-8 is installed on the top of the shell 6-1, and a second slide groove matching the push plate 6-7 is opened on the limiting block 6-8; specifically, the moving seat 5 is arranged in a T-shape to prevent the moving seat 5 from escaping from the first slide groove 2-1.

[0025] When in use, two adjusting motors 6-2 are started at the same time, and the adjusting motor 6-2 drives the first gear 6-3 to rotate clockwise, and the rotation of the first gear 6-3 drives the second gear 6-4 to rotate counterclockwise, and the half gear 6-5 rotates counterclockwise with the second gear 6-4. When the half gear 6-5 located on the front side rotates to the meshing position with the rack 6-6, the front half gear 6-5 rotates to drive the rack 6-6 to move downward, and the rack 6-6 moves downward to drive the push plate 6-7 to move downward, thereby driving the moving seat 5 to move downward, and the auxiliary roller 4 moves downward. The distance between the printing roller 3 and the auxiliary roller 4 is increased, and substrates of different thicknesses can be printed, which expands the use range of the printing press.

[0026] The auxiliary roller 4 includes two first rollers 4-1, and a second roller 4-2 is detachably connected between the two first rollers 4-1. A connecting shaft 4-3 is provided on the side of the first roller 4-1 away from the second roller 4-2, and the outer end of the connecting shaft 4-3 is rotatably connected to the moving seat 5 through a bearing; specifically, Figure 8-9 As shown, four positioning columns 4-1-1 are connected to the end face of the first roller 4-1 away from the connecting shaft 4-3, and positioning holes 4-2-1 matching the positioning columns 4-1-1 are opened on the left and right end faces of the second roller 4-2, and the positions of the four positioning holes 4-2-1 correspond one-to-one to the positions of the four positioning columns 4-1-1.

[0027] When in use, select the second roller 4-2 of appropriate length as needed, then insert the positioning posts 4-1-1 on the two first rollers 4-1 into the positioning holes 4-2-1 on the second roller 4-2. The length of the auxiliary roller 4 can be adjusted as needed to match substrates of different widths. In order to match the spacing between the two brackets 2, it is necessary to rotate the appropriate connecting shaft 4-3 according to the overall length of the first roller 4-1 and the second roller 4-2. The connecting shaft 4-3 is connected to the first roller 4-1 by bolts for easy disassembly and replacement.

[0028] A smearing mechanism is installed above the printing roller 3, and the smearing mechanism includes an ink box 8, which is installed between the two brackets 2. The ink box 8 has a feed port 8-1 and a discharge port 8-2. A second motor 9 is installed on the outer side of the bracket 2 on the right side, and the second motor 9 is connected to a rotating shaft 10. A sealing plate 11 is connected to the rotating shaft 10, and a smearing sponge 12 is installed at the discharge port 8-2; a mounting frame 13 is also installed on the outer side of the bracket 2, and a scraper 14 is rotatably connected to the mounting frame 13, and a buffer spring is also connected between the scraper 14 and the mounting frame 13; a material receiving box 15 is also provided on the top surface of the base 1, and the material receiving box 15 is used to receive excess ink scraped off by the scraper 14 to avoid waste of ink.

[0029] When the smearing mechanism is working, the ink is injected into the ink box 8 from the feed port 8-1 of the ink box 8, and the second motor 9 drives the rotating shaft 10 to drive the sealing plate 11 to rotate toward the smearing sponge 12, so that the ink flows from the gap between the sealing plate 11 and the ink box 8 through the discharge port 8-2 to the smearing sponge 12, and the printing roller 3 rotates and contacts the smearing sponge 12, so that the smearing sponge 12 smears the ink to the printing surface of the printing roller 3.

[0030] The working process of the utility model is as follows:

[0031] First, according to the width of the substrate, a suitable auxiliary roller 4 is selected. After the auxiliary roller 4 is installed, the distance between the printing roller 3 and the auxiliary roller 4 is adjusted by the adjustment mechanism 6 according to the thickness of the substrate; then, the coating mechanism coats the ink on the printing roller 3, and the substrate is placed between the auxiliary roller 4 and the printing roller 3. The first motor 7 drives the printing roller 3 to rotate, and the rotation of the printing roller 3 drives the substrate to slide in the gap between the auxiliary roller 4 and the printing roller 3, thereby transferring the text or image on the printing roller 3 to the substrate.

[0032] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A printing press with a roller adjustment mechanism, characterized in that: The invention comprises a base (1), wherein two brackets (2) are arranged on the top surface of the base (1), a printing roller (3) is arranged between the two brackets (2), a first motor (7) for driving the printing roller (3) is arranged on the outer side of the bracket (2) located on the right side, an auxiliary roller (4) is arranged below the printing roller (3), a movable seat (5) is arranged on the left and right sides of the auxiliary roller (4), a first slide groove (2-1) matching the movable seat (5) is arranged on the bracket (2), and an adjustment mechanism (6) is arranged below the movable seat (5); the adjustment mechanism (6) comprises a shell (6-1), the outer shell (6-1) A shell (6-1) is arranged on the outside of the bracket (2), and an adjusting motor (6-2) is arranged on the outside of the shell (6-1). The output shaft of the adjusting motor (6-2) extends to the inside of the shell (6-1) and is connected to the first gear (6-3). The front and rear sides of the first gear (6-3) are meshed with a second gear (6-4). A half gear (6-5) is arranged on the central axis of the second gear (6-4). A rack (6-6) is arranged between the two half gears (6-5). A push plate (6-7) is arranged on the top of the rack (6-6), and the push plate (6-7) is connected to the moving seat (5).

2. The printing press with a roller adjustment mechanism according to claim 1, characterized in that: The auxiliary roller (4) comprises two first rollers (4-1), a second roller (4-2) being detachably connected between the two first rollers (4-1), a connecting shaft (4-3) being arranged on a side of the first roller (4-1) away from the second roller (4-2), and an outer end of the connecting shaft (4-3) being rotatably connected to the movable seat (5).

3. The printing press with a roller adjustment mechanism according to claim 2, characterized in that: A plurality of positioning columns (4-1-1) are arranged on the end surface of one side of the first roller (4-1) away from the connecting shaft (4-3), and positioning holes (4-2-1) matching the positioning columns (4-1-1) are arranged on the left and right end surfaces of the second roller (4-2).

4. The printing press with a roller adjustment mechanism according to claim 3, characterized in that: The number of the positioning columns (4-1-1) and the number of the positioning holes (4-2-1) are both set to four, and the positions of the four positioning holes (4-2-1) correspond one-to-one to the positions of the four positioning columns (4-1-1).

5. The printing press with a roller adjustment mechanism according to claim 1, characterized in that: A limit block (6-8) is arranged on the top of the shell (6-1), and a second sliding groove matching the push plate (6-7) is arranged on the limit block (6-8).

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