Printing machine capable of preventing offset printing

Abstract

The utility model relates to the technical field of printing machines, and discloses an anti-deviation printing printing machine which comprises a base plate, two fixing frames are arranged above the base plate, two arc-shaped baffles are arranged in each fixing frame, and rotating rods are rotationally connected to the inner walls of the two fixing frames. The outer surfaces of the two rotating rods are each provided with a set of threaded grooves, each set of threaded grooves are symmetrical, and the multiple arc-shaped baffles are in threaded connection with the threaded grooves close to the arc-shaped baffles. According to the printing machine capable of preventing deviation printing, the distance between each set of arc-shaped baffles can be adjusted through cooperation of the arc-shaped baffles and the threaded grooves and rotation of the rotating rods, adjustment is more convenient and faster, and the surface of a printing piece to be printed can be cleaned through cooperation of an exhaust barrel and a nozzle; and static electricity attached to the surface of the printing piece is removed, so that the phenomenon that the surface of the printing piece adsorbs impurities due to the static electricity and the printing work of the printing piece is affected is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of printing presses, and in particular to a printing press for preventing offset printing. Background Art

[0002] A printing press is a machine for printing text and images. Modern printing presses are generally composed of mechanisms such as plate loading, inking, embossing, and paper feeding. Its working principle is: first, the text and image to be printed are made into a printing plate and installed on the printing press. Then, ink is applied to the places with text and images on the printing plate by humans or the printing press, and then directly or indirectly transferred to paper or other printing materials, thereby reproducing printed products identical to the printing plate. The invention and development of the printing press have played an important role in the dissemination of human civilization and culture.

[0003] An existing patent (publication number: CN215662401U) discloses a printing press with anti-skew printing, belonging to the technical field of printing presses. The press comprises a mounting frame and a printing assembly. A rectangular frame is mounted on top of the mounting frame, rotatably connected to two horizontal rollers. The printed workpiece is tensioned and transported along these rollers. A vertically movable squeezing roller is located above the horizontal rollers near the rear end of the rectangular frame. Driven by gravity, the squeezing roller presses the printed workpiece downward against the horizontal roller below. A lateral squeezing element is located at the rear end of the rectangular frame. This lateral squeezing element comprises two curved baffles that slide axially along the horizontal rollers. These baffles clamp onto either side of the printed workpiece to limit its position. The printing assembly is mounted on the mounting frame at the rear end of the rectangular frame. Printed workpieces removed from between the two curved baffles are placed within the printing assembly for printing. This utility model prevents left and right deviation of printed workpieces within the printing press.

[0004] The above-mentioned document can cause the printed part to shift during the printing process. When we adjust the anti-shift and tension adjustment devices during use, the adjustment process is not simple enough. At the same time, in the above-mentioned document, due to the contact between the printed part and multiple printing rollers, static electricity will be generated on its surface, which is easy to absorb impurities and affect printing. Utility Model Content

[0005] In response to the deficiencies in the prior art, the present application provides a printing press with anti-offset printing, which has the advantages of improved convenience and cleaning of printed parts, and solves the problems raised in the background technology.

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solution: a printing press for preventing offset printing, comprising a base plate, two fixed frames disposed above the base plate, two arc-shaped baffles disposed within the two fixed frames, the inner walls of the two fixed frames being rotatably connected to a rotating rod, the outer surfaces of the two rotating rods being provided with a group of threaded grooves, each group of threaded grooves being symmetrical, and a plurality of the arc-shaped baffles being threadedly connected to adjacent threaded grooves;

[0007] An exhaust pipe is provided above the two arc-shaped baffles on the right side. The front end of the exhaust pipe is fixedly connected to the output end of the external static eliminator. The outer surface of the exhaust pipe is fixedly connected to a plurality of nozzles distributed at equal distances. The rear end of the exhaust pipe is fixedly connected to the inner wall of the fixed frame located at the rear. The exhaust pipe is slidably connected to the two arc-shaped baffles on the right side.

[0008] Through the above solution, the arc-shaped baffle is installed to fit the arc of the printed part, so that the printed part can be stably clamped and the printed part can be prevented from deflecting.

[0009] Furthermore, a fixing frame is fixedly connected to the upper surface of the substrate, two clamping blocks are clamped on the upper surface of the fixing frame, and a printing roller and a contact roller are rotatably connected between the two clamping blocks.

[0010] Through the above solution, the connection between the mounting block and the fixing frame can enable the printing roller and the contact roller to be disassembled, thereby facilitating their maintenance.

[0011] Furthermore, a threaded barrel is rotatably connected to the inner wall of the fixing frame, and the internal threads of the threaded barrel are connected to two threaded rods, and the other ends of the two threaded rods are rotatably connected to the fixing frame adjacent thereto.

[0012] Through the above solution, the cooperation between the threaded barrel and the threaded rod can make the two fixed frames move away from each other during the rotation of the threaded barrel, so that the printing piece can be kept in a taut state, which is convenient for printing operations on the printing piece.

[0013] Furthermore, inner walls of the two fixing frames are rotatably connected to tension rollers, and the two tension rollers are symmetrical.

[0014] Through the above solution, installing the tension roller can apply resistance to the printed piece when printing, so that the printed piece can remain stable, and the cooperation with the fixed frame can tighten the tension of the printed piece.

[0015] Furthermore, fans are installed on the upper surfaces of the two arc-shaped baffles on the left side, and the two fans are symmetrical.

[0016] Through the above solution, the installation of the fan can dry the ink on the printed part, so that the ink can be quickly fixed on the printed part.

[0017] Furthermore, two limiting plates are fixed to the side surfaces of the two fixing frames that are close to each other, and the plurality of limiting plates are all slidably connected to the fixing frame.

[0018] Through the above solution, installing the limiting plate can limit the fixing frame, so that the fixing frame can slide stably.

[0019] Furthermore, the inner walls of the two fixed frames are fixedly connected to the limiting slide rails, and the plurality of arc-shaped baffles are slidably connected to the limiting slide rails adjacent thereto.

[0020] Through the above solution, the installation of the limiting slide rail can limit the arc-shaped baffle, so that the arc-shaped baffle can slide stably.

[0021] Furthermore, two pressing rollers are installed on the upper surface of the substrate, and the two pressing rollers are symmetrical.

[0022] Through the above solution, installing the pressing roller can tension the printed part, making it easier to perform printing operations on the printed part.

[0023] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0024] This anti-offset printing printing machine can adjust the distance between each group of arc baffles by installing the arc baffles and the threaded groove and rotating the rotating rod, and the adjustment is more convenient. By installing the exhaust pipe and the nozzle, the surface of the printed part to be printed can be cleaned and the static electricity attached to the surface can be removed, so as to prevent the surface from absorbing impurities due to static electricity, thereby affecting the printing work of the printed part. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a cross-sectional view of the overall structure of this application;

[0026] Figure 2 This is a schematic diagram of the fixed frame structure of this application;

[0027] Figure 3 This is an illustration of the overall structure of this application Figure 1 ;

[0028] Figure 4 This is an illustration of the overall structure of this application Figure 2 .

[0029] In the picture:

[0030] 1. Base plate; 2. Fixed frame; 3. Arc baffle; 4. Rotating rod; 5. Threaded groove; 6. Exhaust pipe; 7. Nozzle; 8. Fixed frame; 9. Block; 10. Threaded barrel; 11. Threaded rod; 12. Tension roller; 13. Fan; 14. Limit plate; 15. Limit slide rail; 16. Press roller; 17. Printing roller; 18. Contact roller. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] See also Figure 1 、 Figure 2 and Figure 3 In this embodiment, a printing machine for anti-bias printing includes a base plate 1, two fixed frames 2 are provided above the base plate 1, two arc-shaped baffles 3 are provided inside the two fixed frames 2, the inner walls of the two fixed frames 2 are rotatably connected with a rotating rod 4, and the outer surfaces of the two rotating rods 4 are provided with a group of thread grooves 5, each group of thread grooves 5 are symmetrical, and multiple arc-shaped baffles 3 are threadedly connected to the thread grooves 5 adjacent to them. By installing the arc-shaped baffles 3 and cooperating with the thread grooves 5 and rotating the rotating rod 4, the spacing between each group of arc-shaped baffles 3 can be adjusted, and the adjustment is more convenient.

[0033] See also Figure 1 、 Figure 2 and Figure 3 An exhaust pipe 6 is provided above the two arc-shaped baffles 3 on the right side. The front end of the exhaust pipe 6 is fixedly connected to the output end of the external static eliminator. The outer surface of the exhaust pipe 6 is fixedly connected to a plurality of nozzles 7 distributed at equal distances. The rear end of the exhaust pipe 6 is fixedly connected to the inner wall of the fixed frame 2 at the rear. The exhaust pipe 6 is slidably connected to the two arc-shaped baffles 3 on the right side. By installing the exhaust pipe 6 and the nozzle 7, the surface of the printed part to be printed can be cleaned and the static electricity attached to its surface can be removed to avoid the adsorption of impurities on its surface due to static electricity, thereby affecting the printing work of the printed part.

[0034] See also Figure 1 、 Figure 2 and Figure 3 The upper surface of the substrate 1 is fixedly connected to a fixing frame 8, and two clamping blocks 9 are clamped on the upper surface of the fixing frame 8. A printing roller 17 and a contact roller (18) are rotatably connected between the two clamping blocks 9. The clamping connection between the mounting clamping block 9 and the fixing frame 8 can disassemble the printing roller 17 and the contact roller 18, which is convenient for maintenance. The inner wall of the fixing frame 8 is rotatably connected to a threaded barrel 10, and the internal thread of the threaded barrel 10 is connected to two threaded rods 11. The other ends of the two threaded rods 11 are rotatably connected to the fixing frame 2 close to them. The cooperation of the mounting threaded barrel 10 and the threaded rod 11 can make the two fixing frames 2 move away from each other during the rotation of the threaded barrel 10, so that the printed part can be in a taut state, which is convenient for printing operations on the printed part.

[0035] See also Figure 1 、 Figure 2 and Figure 4 The inner walls of the two fixed frames 2 are rotatably connected with tension rollers 12. The two tension rollers 12 are symmetrical. Installing the tension rollers 12 can apply resistance to the printed piece when printing, so that the printed piece can remain stable, and cooperate with the fixed frame 2 to tighten the tension of the printed piece. The upper surfaces of the two arc-shaped baffles 3 on the left are both installed with fans 13. The two fans 13 are symmetrical. Installing the fans 13 can dry the ink on the printed piece so that the ink can be quickly fixed on the printed piece. Two limit plates 1 are fixed on the side of the two fixed frames 2 that are close to each other. 4. Multiple limit plates 14 are slidably connected to the fixed frame 8. Installing the limit plates 14 can limit the fixed frame 2 so that the fixed frame 2 can slide stably. The inner walls of the two fixed frames 2 are fixedly connected to the limit slide rails 15. Multiple arc-shaped baffles 3 are slidably connected to the limit slide rails 15 close to them. Installing the limit slide rails 15 can limit the arc-shaped baffles 3 so that the arc-shaped baffles 3 can slide stably. Two pressure rollers 16 are installed on the upper surface of the substrate 1. The two pressure rollers 16 are symmetrical. Installing the pressure rollers 16 can tension the printed part, which is convenient for printing operations on the printed part.

[0036] In this embodiment, a printing machine for preventing offset printing can adjust the spacing between each group of arc baffles 3 by installing the arc baffles 3 and the threaded grooves 5 and rotating the rotating rod 4, and the adjustment is more convenient. By installing the exhaust pipe 6 and the nozzle 7, the surface of the printed part to be printed can be cleaned and the static electricity attached to the surface can be removed to prevent the surface from absorbing impurities due to static electricity, thereby affecting the printing work of the printed part.

[0037] The working principle of the above embodiment is as follows: first, when printing a printed piece, the two arc-shaped baffles 3 can be brought close to each other and in contact with the printed piece and clamped by rotating the rotating rod 4. At this time, the printed piece can contact the tension roller 12. By installing the arc-shaped baffles 3 and cooperating with the threaded groove 5, the spacing between each group of arc-shaped baffles 3 can be adjusted by rotating the rotating rod 4, and the adjustment is more convenient. Then the threaded cylinder 10 can be rotated so that the two threaded rods 11 can push the two fixed frames 2 away from each other, and cooperate with the tension roller 12 to stretch the printed piece so that the printed piece can be in a taut state. When printing the printed piece, the external static eliminator is started and the positive and negative ion airflow is transported into the exhaust pipe 6 and ejected from multiple nozzles 7, which can clean the surface of the printed piece to be printed and remove the static electricity attached to its surface to prevent its surface from absorbing impurities due to static electricity, thereby affecting the printing of the printed piece.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0039] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A printing machine for preventing offset printing, comprising a substrate (1), characterized in that: Two fixed frames (2) are provided above the base plate (1), two arc-shaped baffles (3) are provided inside the two fixed frames (2), the inner walls of the two fixed frames (2) are rotatably connected to a rotating rod (4), and the outer surfaces of the two rotating rods (4) are provided with a group of thread grooves (5), each group of the thread grooves (5) is symmetrical, and a plurality of the arc-shaped baffles (3) are threadedly connected to the thread grooves (5) adjacent to them; An exhaust pipe (6) is provided above the two arc-shaped baffles (3) on the right side, the front end of the exhaust pipe (6) is fixedly connected to the output end of the static eliminator outside, the outer surface of the exhaust pipe (6) is fixedly connected to a plurality of nozzles (7) distributed at equal distances, the rear end of the exhaust pipe (6) is fixedly connected to the inner wall of the fixed frame (2) located at the rear, and the exhaust pipe (6) is slidably connected to the two arc-shaped baffles (3) on the right side.

2. The anti-offset printing printer according to claim 1, characterized in that: The upper surface of the substrate (1) is fixedly connected to a fixing frame (8), the upper surface of the fixing frame (8) is clamped with two clamping blocks (9), and a printing roller (17) and a contact roller (18) are rotatably connected between the two clamping blocks (9).

3. The anti-offset printing printer according to claim 2, characterized in that: The inner wall of the fixing frame (8) is rotatably connected to a threaded barrel (10), and the internal threads of the threaded barrel (10) are connected to two threaded rods (11). The other ends of the two threaded rods (11) are rotatably connected to the fixing frame (2) adjacent thereto.

4. The anti-offset printing printer according to claim 1, characterized in that: The inner walls of the two fixed frames (2) are both rotatably connected to tension rollers (12), and the two tension rollers (12) are symmetrical.

5. The anti-offset printing printer according to claim 1, characterized in that: Fans (13) are installed on the upper surfaces of the two arc-shaped baffles (3) located on the left side, and the two fans (13) are symmetrical.

6. The anti-offset printing printer according to claim 1, characterized in that: two Two limiting plates (14) are fixed on the mutually adjacent side surfaces of the fixing frame (2), and the plurality of limiting plates (14) are all slidably connected to the fixing frame (8).

7. The anti-offset printing printer according to claim 1, characterized in that: The inner walls of the two fixed frames (2) are fixedly connected to the limiting slide rails (15), and the plurality of arc-shaped baffles (3) are slidably connected to the adjacent limiting slide rails (15).

8. The anti-offset printing printer according to claim 1, characterized in that: Two pressing rollers (16) are installed on the upper surface of the substrate (1), and the two pressing rollers (16) are symmetrical.

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