Printing platen structure of printing machine

Abstract

The utility model discloses a printing bedplate structure of a printing machine, which relates to the technical field of printing machines and comprises a bedplate, the bedplate is of a hollow structure, a plurality of negative pressure holes are formed in the upper surface of the bedplate, and a connector used for being connected with an external negative pressure system is installed on the side portion of the bedplate. The side portion of the platen is further provided with a plurality of sets of fixing assemblies used for being detachably connected with a printing table of a printing machine, the front direction, the rear direction, the left direction and the right direction of the upper surface of the platen are each provided with a strip-shaped groove, and each strip-shaped groove is provided with a set of positioning assembly. The four sets of positioning assemblies form a positioning cavity with the adjustable size on the upper surface of the platen so that printing materials of different sizes can be positioned. Printing materials of various specifications can be accurately positioned, it is ensured that the materials are always located at the correct positions during printing, the printing accuracy and consistency are greatly improved, and the high use value is achieved.

Description

Technical Field

[0001] This utility model relates to the field of printing press technology, and more specifically, to a printing table structure for a printing press. Background Technology

[0002] In the printing industry, printing plates are typically mounted on the upper surface of the printing press substrate, and their structure plays a crucial role in ensuring print quality. While existing printing plates can use negative pressure systems to hold the printing material on the plate, thus preventing material displacement during printing to some extent, they still have many shortcomings in practical applications.

[0003] Traditional printing plates have a limited range of positioning methods for printing materials of different sizes, making it difficult to accurately adapt to materials of various specifications. This leads to deviations in material position during printing, affecting the accuracy and consistency of the printing process. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned in the background art above, and then to propose a printing table structure for a printing machine.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A printing table structure for a printing press includes a table, which is hollow and has several negative pressure holes on its upper surface. A connector for connecting to an external negative pressure system is installed on the side of the table. Multiple sets of fixing components are also installed on the side of the table for detachable connection with the printing press substrate. A strip groove is provided in each of the four directions (front, back, left, and right) on the upper surface of the table. A set of positioning components is installed at each position of the strip groove. The four sets of positioning components form an adjustable positioning cavity on the upper surface of the table to position printing materials of different sizes.

[0007] Furthermore, the solution involves placing multiple sets of the fixing components in different installation directions and positions to fix the components from multiple points, thereby improving the fixing effect.

[0008] Furthermore, the fixing component includes a mounting base fixedly disposed on the side of the table, and the mounting base is provided with a corner cylinder. When the corner cylinder is in the retracted state, it is in contact with the bottom surface of the printing press table.

[0009] Furthermore, the design includes a rubber pad on the corner cylinder base to provide cushioning when the corner cylinder base contacts the bottom surface of the printing press substrate, thereby improving the fixing effect.

[0010] Furthermore, the positioning component includes a lead screw that is horizontally rotatably connected to a strip groove, and a drive motor is connected to the end of the lead screw. A positioning seat is fitted on the lead screw, and the positioning seat is slidably disposed on the surface of the platform. An adjustable positioning cavity is formed between the four positioning seats.

[0011] Furthermore, the positioning seat has a rectangular structure.

[0012] Furthermore, the solution includes a set of dustproof components in the inner cavity of the platform, which block the negative pressure hole when there is no negative pressure.

[0013] Furthermore, the dustproof component includes a telescopic cylinder, which is vertically installed in the inner cavity of the platform and its telescopic end is connected to a mounting plate.

[0014] Furthermore, the telescopic cylinder is one of a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

[0015] Furthermore, the dustproof component also includes several sealing rods, which are vertically arranged on the upper surface of the mounting plate and correspond one-to-one with the negative pressure holes. When there is no negative pressure, the sealing rods are inserted into the negative pressure holes to avoid clogging them.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, the strip grooves arranged in the front, back, left, and right directions on the upper surface of the printing plate, and the positioning components installed in each strip groove, can flexibly adjust the position of the four sets of positioning components in the strip grooves according to the specific size of the printing material, thereby changing the size of the positioning cavity so that it can perfectly adapt to printing materials of different sizes. It can accurately position printing materials of various specifications, ensuring that the material is always in the correct position during printing, which greatly improves the accuracy and consistency of printing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the platform;

[0020] Figure 3 for Figure 1 A magnified view of part A in the diagram;

[0021] Figure 4 This is a schematic diagram showing the installation location of the dustproof components;

[0022] The components are as follows: 1. Platform; 11. Negative pressure hole; 12. Connector; 13. Strip groove; 2. Fixing component; 21. Mounting base; 22. Corner cylinder; 23. Rubber pad; 3. Positioning component; 31. Lead screw; 32. Drive motor; 33. Positioning seat; 4. Dustproof component; 41. Telescopic cylinder; 42. Mounting plate; 43. Sealing rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments:

[0024] A printing table structure for a printing press, see attached figure. Figure 1 and attached Figure 2 As shown, it includes a table plate 1, which has a hollow structure and a plurality of negative pressure holes 11 on its upper surface. A connector 12 for connecting to an external negative pressure system is installed on the side of the table plate 1. During printing, negative pressure is generated by the negative pressure system to firmly adsorb the printing material onto the table plate 1, ensuring that the material will not be displaced during the printing process. The above is the prior art, and this application will not elaborate further on it.

[0025] In addition, multiple sets of fixing components 2 are installed on the side of the table plate 1 for detachable connection with the printing press table. The multiple sets of fixing components 2 are in different installation directions and positions to fix from multiple points to improve the fixing effect. A strip groove 13 is provided in each of the four directions of front, back, left and right on the upper surface of the table plate 1. A positioning component 3 is installed in each strip groove 13. The four sets of positioning components 3 form an adjustable positioning cavity on the upper surface of the table plate 1 to position printing materials of different sizes.

[0026] In use, the table plate 1 is fixedly installed on the upper surface of the printing press substrate by the fixing component 2. Then, according to the specific size of the printing material, the position of the four sets of positioning components 3 in the strip groove 13 is adjusted to change the size of the positioning cavity so that it matches the size of the printing material. In this way, the positioning component 3 can accurately position printing materials of different sizes, ensuring that the material is in the correct position during printing, thus improving the accuracy and consistency of printing. Finally, the external negative pressure system is activated to generate negative pressure, and air is drawn away through the negative pressure hole 11, forming a pressure difference between the upper surface of the table plate 1 and the printing material. This pressure difference makes the printing material firmly adsorbed on the upper surface of the table plate 1, ensuring that the material will not be displaced due to external forces (such as friction or mechanical movement during printing) during the printing process, thereby ensuring the accuracy and quality of printing.

[0027] For the above scheme, please refer to the appendix for details. Figure 1 and attached Figure 2 As shown, the fixing component 2 includes a mounting base 21 fixedly disposed on the side of the table 1. A corner cylinder 22 is mounted on the mounting base 21. When the corner cylinder 22 is retracted, it contacts the bottom surface of the printing press table. In this design, the mounting base 21 provides the mounting foundation for the entire fixing component 2. During use, the corner cylinder 22 controls the movement of the rotating base through an internal hydraulic or pneumatic system. When retracted, the rotating base accurately reaches the position contacting the bottom surface of the printing press table, achieving a quick connection between the table 1 and the printing press table. When disassembly is required, the rotating base can extend and move away from the bottom surface of the printing press table. Furthermore, the corner cylinder 22 is equipped with a rubber pad 23, which acts as a buffer when the corner cylinder 22 contacts the bottom surface of the printing press table, thereby improving the fixing effect.

[0028] For the above scheme, please refer to the appendix for details. Figure 3As shown, the positioning component 3 includes a lead screw 31, which is horizontally rotatably connected to the strip groove 13, and a drive motor 32 is connected to the end of the lead screw 31. A positioning seat 33 with a rectangular structure is fitted on the lead screw 31. The positioning seat 33 is slidably disposed on the surface of the platform 1, and an adjustable positioning cavity is formed between the four positioning seats 33. In this design, based on the size of the printed material, the drive motor 32 operates to make the lead screw 31 rotate horizontally within the strip groove 13. When the lead screw 31 rotates, the positioning seat 33 slides linearly along the axial direction of the lead screw 31 on the surface of the table plate 1. The four positioning seats 33 are located in the strip grooves 13 in the front, back, left, and right directions on the upper surface of the table plate 1, respectively. They are independently controlled by their respective lead screws 31 and drive motors 32. When it is necessary to position printed materials of different sizes, the corresponding lead screws 31 can be driven to rotate by the drive motor 32 according to the size of the material, so that the four positioning seats 33 move along the strip grooves 13 on the surface of the table plate 1, thereby changing their relative positions and forming an adjustable positioning cavity, thus achieving precise positioning of printed materials of different sizes.

[0029] In the above solution, considering that external dust may enter the inner cavity of the platform 1 through the negative pressure hole 11 and affect the performance, therefore, refer to the appendix. Figure 4 As shown, the inner cavity of the platform 1 is provided with a set of dustproof components 4, which block the negative pressure hole 11 when there is no negative pressure.

[0030] Specifically, the dustproof component 4 includes a telescopic cylinder 41, which is vertically installed inside the table 1 and has a mounting plate 42 connected to its telescopic end. In this design, the telescopic cylinder 41 is driven to extend and retract by hydraulic, pneumatic, or electric means. When there is no negative pressure generated by the external negative pressure system (i.e., when the printing process is over or has not started), the telescopic end of the telescopic cylinder 41 extends, causing the mounting plate 42 to rise to a position close to the upper surface of the table 1. At this time, the mounting plate 42 covers the negative pressure hole 11, preventing external dust, debris, etc. from entering the inner cavity of the table 1 through the negative pressure hole 11. When printing is required and the external negative pressure system is activated, the telescopic end of the telescopic cylinder 41 retracts, causing the mounting plate 42 to descend away from the table 1, thereby opening the negative pressure hole 11 and allowing air to pass through smoothly to achieve adsorption and fixation of the printed material.

[0031] Furthermore, considering the potential for blockage within the negative pressure port 11, please refer to the attached document. Figure 4As shown, the dustproof component 4 also includes several sealing rods 43, which are vertically arranged on the upper surface of the mounting plate 42 and correspond one-to-one with the negative pressure holes 11. When there is no negative pressure, the sealing rods 43 are inserted into the negative pressure holes 11. In this design, through the cooperation of the sealing rods 43 and the mounting plate 42, the dustproof component 4 can not only effectively block the negative pressure holes 11 to prevent dust from entering when there is no negative pressure, but also clean the negative pressure holes 11 to prevent blockage, further improving the working performance and reliability of the platform 1 and ensuring the normal operation of the negative pressure adsorption system.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A printing platform structure of a printing machine, comprising a platform (1), the platform (1) is hollow and provided with a plurality of negative pressure holes (11) on the upper surface, and a connecting head (12) is arranged on the side of the platform (1) for connecting with an external negative pressure system; characterized in that: a plurality of sets of fixing assemblies (2) are further arranged on the side of the platform (1) for detachable connection with a printing platform of the printing machine; a linear slot (13) is arranged on the upper surface of the platform (1) in each of the four directions, and a set of positioning assemblies (3) is arranged at the position of each linear slot (13), and the four sets of positioning assemblies (3) form a size-adjustable positioning cavity on the upper surface of the platform (1).

2. The printing platform structure of the printing machine according to claim 1, characterized in that: the plurality of sets of fixing assemblies (2) are arranged in different installation directions and positions.

3. The printing platform structure of the printing machine according to claim 2, characterized in that: the fixing assembly (2) comprises a mounting seat (21) fixedly arranged on the side of the platform (1), and a corner cylinder (22) is arranged on the mounting seat (21), and the corner cylinder (22) is in contact with the bottom surface of the printing platform of the printing machine in the retracted state.

4. The printing platform structure of the printing machine according to claim 3, characterized in that: a rubber pad (23) is arranged on the rotating seat of the corner cylinder (22).

5. The printing platform structure of the printing machine according to claim 4, characterized in that: the positioning assembly (3) comprises a lead screw (31) horizontally rotatably connected in the linear slot (13), and a driving motor (32) is connected to the end of the lead screw (31), and a positioning seat (33) is matched with the lead screw (31), the positioning seat (33) is slidingly arranged on the surface of the platform (1), and a size-adjustable positioning cavity is formed between the four positioning seats (33).

6. The printing platform structure of the printing machine according to claim 5, characterized in that: the positioning seat (33) is in a rectangular structure.

7. The printing platform structure of the printing machine according to claim 6, characterized in that: a set of dustproof assemblies (4) is arranged in the inner cavity of the platform (1), and the dustproof assemblies (4) shield the negative pressure holes (11) in the non-negative pressure state.

8. The printing platform structure of the printing machine according to claim 7, characterized in that: the dustproof assembly (4) comprises a telescopic cylinder (41) vertically arranged in the inner cavity of the platform (1) and connected with a mounting plate (42) at the telescopic end.

9. The printing platform structure of the printing machine according to claim 8, characterized in that: the telescopic cylinder (41) is one of a hydraulic cylinder, an air cylinder or an electric cylinder.

10. The printing platform structure of the printing machine according to claim 9, characterized in that: the dustproof assembly (4) further comprises a plurality of plugging rods (43) vertically arranged on the upper surface of the mounting plate (42) and corresponding to the negative pressure holes (11), and the plugging rods (43) are inserted into the negative pressure holes (11) in the non-negative pressure state.

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