A printing web frame structure for a printing press

Abstract

The utility model discloses a printing net rack structure for printing machine, including base plate, installation frame and net rack body, installation frame includes two installation side seats of symmetrical settings, is provided with C type sliding slot on the installation side seat, and the both sides sliding joint of net rack body are in C type sliding slot, and the front side both ends of net rack body are installed with locking piece, and locking piece and net rack body can detachable installation, and locking piece and corresponding side installation side seat can adjust setting. The utility model discloses a C type sliding slot realizes the sliding installation of net rack body, and the adjustable limit fixing is carried out with the front side locking piece, makes net rack body can along the flexible adjustment position of sliding slot direction, and realizes quick locking after in position. Since locking piece and net rack body detachable connection, it is convenient for adaptation different width's net rack body, has improved the compatibility and the replacement efficiency of equipment to multiple specifications screen significantly, guarantees the structural stability and printing precision after installation simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of printing screen frame technology, specifically relating to a printing screen frame structure for a printing press. Background Technology

[0002] In the printing industry, the printing press is a core piece of equipment, and its performance and stability directly affect the quality of printed materials and production efficiency. The printing screen structure, as an important component of the printing press, plays a crucial role in supporting the screen, fixing the printing pattern, and transferring ink.

[0003] With the diversification of printed products, printing operations often need to accommodate screens of different widths or specifications, which requires printing presses to have the ability to install screens of different sizes. Traditional printing screen structures usually adopt a fixed design, that is, the screen body and the mounting frame are rigidly connected. Although this connection method is simple in structure, it lacks adjustability and is difficult to adapt to the installation requirements of screen bodies of different widths. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned technical problems existing in the prior art, and to provide a printing screen frame structure for printing machines. The structure is reasonably designed, highly practical, and guided by a C-shaped slide, allowing the screen frame body to slide quickly and easily into the mounting frame. The rear side abuts against the closed end of the C-shaped slide to achieve rapid initial axial positioning, and the front locking part is adjusted to achieve final secure fixation. It is easy to assemble and disassemble, and highly efficient. Moreover, the locking part moves with the screen frame body within the C-shaped slide, so for screen frames of different widths, it is only necessary to push it in until the rear side abuts against the closed end, and then tighten the corresponding locking part to complete the installation. This allows the same mounting frame to adapt to screen frames of various specifications, greatly improving the utilization rate of the equipment, and providing strong versatility and wide adaptability.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A printing screen frame structure for a printing press includes a base plate, a mounting frame, and a screen frame body. The mounting frame includes two symmetrically arranged mounting side seats. Each mounting side seat has a C-shaped groove with one end open and the other closed. The two sides of the screen frame body are slidably engaged in the C-shaped groove. Locking components are installed at both ends of the front side of the screen frame body. The locking components are detachably installed from the screen frame body and are adjustable to the corresponding mounting side seats. When the rear side of the screen frame body abuts against the closed end of the C-shaped groove, the locking components are adjusted to limit and fix the locking components to the mounting side seats, thereby limiting and fixing the screen frame body within the mounting frame.

[0006] Furthermore, the space frame body includes wire mesh and edge frames. The wire mesh is fixedly installed inside the edge frames, and the edge frames are limited and engaged in C-shaped grooves. The wire mesh is pre-fixed in the edge frames to form a modular space frame body, which is conducive to standardized production and quick replacement. The edge frames and C-shaped grooves cooperate to ensure installation accuracy. A pull handle is provided on the front side of the edge frames. The design of the pull handle makes it easy for operators to push the space frame body in and pull it out, realizing quick replacement of the space frame body.

[0007] Furthermore, a limiting end plate is installed and connected between the front ends of the two mounting side seats. The limiting end plate has slots at both ends. The limiting end plate is matched and snapped into the front end of the mounting side seat through the slots. A limiting plug is set in the slot. The limiting plug is inserted and blocked in the C-shaped groove. The limiting end plate closes the open end of the C-shaped groove to prevent the space frame body from accidentally slipping off, thus improving safety performance. The slot and the limiting plug cooperate to ensure the installation stability between the limiting end plate and the mounting side seat, and make disassembly and assembly convenient.

[0008] Furthermore, the limiting end plate is provided with an avoidance slot in the middle. The design of the avoidance slot facilitates the disassembly of the limiting end plate. At the same time, the avoidance slot allows the pull handle to pass through completely, avoiding interference between the pull handle and the limiting end plate and ensuring the smooth movement of the space frame body.

[0009] Furthermore, mounting plates are provided at both the front and rear ends of the mounting side seat. A lifting cylinder is connected between the mounting plate and the base plate. A limit ring is provided at the end of the piston rod of the lifting cylinder. The limit ring is supported on the bottom surface of the mounting plate. A mounting screw is provided on the limit ring. The mounting screw passes through the mounting hole on the mounting plate and is connected to the mounting nut. The lifting cylinder is fixed to the base plate with screws. The design of the lifting cylinder allows the height of the screen frame body to be adjusted to meet the requirements of different printing processes and substrates, improving the adaptability and flexibility of the printing press. The connection between the limit ring and the mounting screw ensures a stable connection between the lifting cylinder and the mounting plate, ensuring the reliability of the connection during lifting action, and facilitating installation and debugging.

[0010] Furthermore, an auxiliary rear frame is fixedly connected between the rear ends of the two mounting side seats. The auxiliary rear frame is provided with an auxiliary slot. When the screen frame body is installed in place on the mounting frame, the rear end of the screen frame body is matched and snapped into the auxiliary slot. The auxiliary rear frame provides an additional support point for the rear end of the screen frame body, which enhances the stability of the screen frame body in the mounting frame, prevents the screen frame body from shaking during the printing process, and ensures printing accuracy.

[0011] Furthermore, the locking component includes a main sliding block, which is slidably engaged within a C-shaped groove. A limit groove is provided at the top of the C-shaped groove, and a limit protrusion is provided at the top of the main sliding block. The limit protrusion is slidably engaged within the limit groove, and a limit screw is provided at the top of the limit protrusion. The end of the limit screw extends out of the C-shaped groove and connects with the locking nut. The main sliding block ensures that the locking component moves synchronously with the space frame body. The limit protrusion cooperates with the limit groove to further improve the stability and reliability of the locking component's sliding process. The limit screw cooperates with the locking nut to firmly lock the locking component vertically when the space frame body is installed in place, improving the stability of the space frame body installation.

[0012] Furthermore, an L-shaped folding plate is provided on the limiting protrusion. The L-shaped folding plate is attached and snapped onto the side of the mounting seat. A locking screw is provided on the vertical section of the L-shaped folding plate. The end of the locking screw passes through the L-shaped folding plate and is firmly fixed against the side of the mounting seat. This ingenious design increases the lateral locking capability. When the grid frame body is installed in place, tightening the locking screw will cause its end to firmly press against the side of the mounting seat, achieving supplementary horizontal locking. This combination of vertical and horizontal bidirectional locking effectively prevents loosening caused by vibration or printing reaction force in the locked state, significantly improving the reliability of locking and the stability of long-term use.

[0013] Furthermore, a locking slider is provided at the bottom of the main sliding block, and a locking groove is provided on the bottom surface of the C-shaped sliding groove. The locking slider is slidably engaged in the locking groove. The locking slider and the locking groove cooperate to further enhance the sliding stability of the main sliding block in the C-shaped sliding groove and prevent deviation or shaking during the sliding process.

[0014] Furthermore, one end of the main sliding block extends into a C-shaped groove to form an abutment. The abutment is fixedly attached to the front end face of the screen frame body. A bottom support plate is provided on the abutment, and a second clamping screw is provided on the bottom support plate. The bottom support plate is supported on the bottom surface of the screen frame body. The end of the second clamping screw passes through the bottom support plate and is clamped and fixed to the bottom surface of the screen frame body. The structural design is ingenious. The abutment directly presses against the screen frame body from the front to achieve precise axial positioning. The bottom support plate supports the screen frame from below, and the second clamping screw applies an upward preload from below, so that the screen frame body is "clamped" between the locking part and the groove. This greatly improves the overall rigidity and vibration resistance after installation and ensures the smooth progress of high-precision printing operations.

[0015] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects: This utility model is reasonably designed and highly practical. The C-shaped sliding groove guides the space frame body to slide quickly and easily into the installation frame. The rear side abuts against the closed end of the C-shaped sliding groove to achieve rapid initial axial positioning, and the front locking part is adjusted to achieve final secure fixation. It is easy to assemble and disassemble, and highly efficient. The locking part moves with the space frame body within the C-shaped sliding groove. Therefore, for space frame bodies of different widths, simply push it in until the rear side abuts against the closed end, and then tighten the corresponding locking part to complete the installation. This allows the same installation frame to adapt to space frames of various specifications, greatly improving the utilization rate of the equipment. It is highly versatile and adaptable. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of a printing screen frame structure for a printing press according to the present invention; Figure 2 for Figure 1 A structural diagram from another perspective; Figure 3 This is a schematic diagram of the structure of the limiting end plate in this utility model; Figure 4 This is a schematic diagram of the structure of the space frame body installed within the mounting frame in this utility model; Figure 5 This is a schematic diagram of the structure of the space frame body in this utility model; Figure 6 This is a schematic diagram of the locking component in this utility model; Figure 7 for Figure 6 A structural diagram from another perspective; Figure 8 This is a schematic diagram of the mounting frame in this utility model.

[0017] In the diagram: 1-Base plate; 2-Mounting frame; 3-Grid frame body; 4-Mounting side seat; 5-C-shaped slide groove; 6-Locking component; 7-Wire mesh; 8-Side frame; 9-Handle; 10-Limiting end plate; 11-Slot; 12-Limiting insert; 13-Avoiding slot; 14-Mounting plate; 15-Lifting cylinder; 16-Limiting ring; 17-Mounting screw; 18-Mounting nut; 19-Screw; 20-Auxiliary rear frame; 21-Auxiliary slot; 22-Main sliding block; 23-Limiting slide groove; 24-Limiting protrusion; 25-Limiting screw; 26-Locking nut; 27-L-shaped folding plate; 28-Securing screw one; 29-Embedded slider; 30-Embedded slide groove; 31-Abutting part; 32-Bottom support plate; 33-Securing screw two. Detailed Implementation

[0018] like Figures 1 to 8As shown, this utility model discloses a printing screen frame structure for a printing press, including a base plate 1, a mounting frame 2, and a screen frame body 3. The mounting frame 2 includes two symmetrically arranged mounting side seats 4. Each mounting side seat 4 has a C-shaped groove 5 with one end open and the other closed. The two sides of the screen frame body 3 are slidably engaged within the C-shaped groove 5. Locking members 6 are installed at both ends of the front side of the screen frame body 3. The locking members 6 are detachably installed and can be adjusted with the corresponding mounting side seats 4. When the rear side of the screen frame body 3 abuts against the closed end of the C-shaped groove 5, the locking members 6 are adjusted to limit and fix the locking members 6 to the mounting side seats 4, thereby limiting and fixing the screen frame body 3 within the mounting frame 2. The C-shaped groove 5 enables the sliding installation of the screen frame body 3, and the front locking members 6 provide adjustable limiting and fixing, allowing the screen frame body 3 to flexibly adjust its position along the groove direction and quickly lock it in place. Since the locking component 6 is detachably connected to the screen frame body 3, it is easy to adapt to screen frame bodies 3 of different widths, which significantly improves the equipment's compatibility with various screen sizes and replacement efficiency, while ensuring the structural stability and printing accuracy after installation.

[0019] The main body of the space frame 3 includes wire mesh 7 and side frame 8. The wire mesh 7 is fixedly installed inside the side frame 8. The side frame 8 is limited and engaged in the C-shaped slide groove 5. The wire mesh 7 is pre-fixed in the side frame 8 to form a modular space frame main body 3, which is conducive to standardized production and quick replacement. The side frame 8 cooperates with the C-shaped slide groove 5 to ensure installation accuracy. A pull handle 9 is provided on the front side of the side frame 8. The design of the pull handle 9 makes it easy for operators to push the space frame main body 3 in and pull it out, so as to realize the quick replacement of the space frame main body 3.

[0020] A limiting end plate 10 is installed and connected between the front ends of the two mounting side seats 4. The two ends of the limiting end plate 10 are provided with slots 11. The limiting end plate 10 is matched and snapped into the front end of the mounting side seat 4 through the slots 11. A limiting plug 12 is provided in the slot 11. The limiting plug 12 is inserted and blocked in the C-shaped sliding groove 5. The limiting end plate 10 closes the opening end of the C-shaped groove to prevent the space frame body 3 from accidentally slipping off, thus improving safety performance. The slots 11 and the limiting plug 12 cooperate to ensure the installation stability between the limiting end plate 10 and the mounting side seat 4, and make disassembly and assembly convenient.

[0021] The limiting end plate 10 is provided with an avoidance slot 13 in the middle. The design of the avoidance slot 13 can facilitate the disassembly of the limiting end plate 10. At the same time, the avoidance slot 13 allows the pull handle 9 to pass through completely, avoiding interference between the pull handle 9 and the limiting end plate 10, and ensuring the smooth movement of the space frame body 3.

[0022] Mounting plates 14 are provided at both the front and rear ends of the mounting side seat 4. A lifting cylinder 15 is connected between the mounting plate 14 and the base plate 1. A limit ring 16 is provided at the end of the piston rod of the lifting cylinder 15. The limit ring 16 is supported on the bottom surface of the mounting plate 14. A mounting screw 17 is provided on the limit ring 16. The mounting screw 17 passes through the mounting hole on the mounting plate 14 and is connected to the mounting nut 18. The lifting cylinder 15 is fixed to the base plate 1 with screws 19. The connection of screws 19 ensures the firmness and reliability of the installation. The design of the lifting cylinder 15 allows the height of the screen frame body 3 to be adjusted to meet the requirements of different printing processes and substrates, and improves the adaptability and flexibility of the printing machine. The connection between the limit ring 16 and the mounting screw 17 ensures the stable connection between the lifting cylinder 15 and the mounting plate 14, ensuring the reliability of the connection during lifting action, and facilitating installation and debugging.

[0023] An auxiliary rear frame 20 is fixedly connected between the rear ends of the two mounting side seats 4. An auxiliary slot 21 is provided on the auxiliary rear frame 20. When the screen frame body 3 is installed in place on the mounting frame 2, the rear end of the screen frame body 3 is matched and snapped into the auxiliary slot 21. The auxiliary rear frame 20 provides an additional support point for the rear end of the screen frame body 3, which enhances the stability of the screen frame body 3 in the mounting frame 2, prevents the screen frame body 3 from shaking during the printing process, and ensures printing accuracy.

[0024] The locking component 6 includes a main sliding block 22, which is slidably engaged in a C-shaped groove 5. A limiting groove 23 is provided at the top of the C-shaped groove 5, and a limiting protrusion 24 is provided at the top of the main sliding block 22. The limiting protrusion 24 is slidably engaged in a limiting groove 23, and a limiting screw 25 is provided at the top of the limiting protrusion 24. The end of the limiting screw 25 extends out of the C-shaped groove 5 and connects with the locking nut 26. The main sliding block 22 ensures that the locking component 6 moves synchronously with the space frame body 3. The limiting protrusion 24 cooperates with the limiting groove 23 to further improve the stability and reliability of the sliding process of the locking component 6. The limiting screw 25 cooperates with the locking nut 26 to firmly lock the locking component 6 from the vertical direction when the space frame body 3 is installed in place, thereby improving the installation stability of the space frame body 3.

[0025] An L-shaped folding plate 27 is provided on the limiting protrusion 24. The L-shaped folding plate 27 is attached and snapped onto the side of the mounting side seat 4. A locking screw 28 is provided on the vertical section of the L-shaped folding plate 27. The end of the locking screw 28 passes through the L-shaped folding plate 27 and is locked against the side of the mounting side seat 4. This ingenious design increases the lateral locking capability. When the grid frame body 3 is installed in place, tightening the locking screw 28 will make its end firmly press against the side of the mounting side seat 4, achieving supplementary horizontal locking. This combination of vertical and horizontal bidirectional locking effectively prevents loosening caused by vibration or printing reaction force in the locked state, significantly improving the reliability of locking and the stability of long-term use.

[0026] The bottom of the main sliding block 22 is provided with a locking slider 29, and the bottom surface of the C-shaped slide groove 5 is provided with a locking slide groove 30. The locking slider 29 is slidably engaged in the locking slide groove 30. The locking slider 29 and the locking slide groove 30 cooperate to further enhance the sliding stability of the main sliding block 22 in the C-shaped slide groove 5 and prevent deviation or shaking during the sliding process. The locking slider 29 and the locking slide groove 30 are preferably designed in a dovetail shape to ensure the stability of the engagement.

[0027] One end of the main sliding block 22 extends into a C-shaped groove 5 to form an abutment part 31. The abutment part 31 is fixedly attached to the front end face of the screen frame body 3. A bottom support plate 32 is provided on the abutment part 31, and a second tightening screw 33 is provided on the bottom support plate 32. The bottom support plate 32 is supported on the bottom surface of the screen frame body 3. The end of the second tightening screw 33 passes through the bottom support plate 32 and is abutted and fixed to the bottom surface of the screen frame body 3. The structural design is ingenious. The abutment part 31 directly abuts the screen frame body 3 from the front to achieve precise axial positioning. The bottom support plate 32 supports the screen frame from below, and the second tightening screw 33 applies an upward preload from below, so that the screen frame body 3 is "clamped" between the locking part 6 and the groove. This greatly improves the overall rigidity and vibration resistance after installation and ensures the smooth progress of high-precision printing operations.

[0028] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A printing screen structure for a printing press, comprising a base plate, a mounting frame, and a screen body; Its features are: The mounting frame includes two symmetrically arranged mounting side seats. Each mounting side seat is provided with a C-shaped groove that is open at one end and closed at the other end. The two sides of the space frame body are slidably engaged in the C-shaped groove. Locking components are installed at both ends of the front side of the space frame body. The locking components are detachably installed with the space frame body. The locking components and the corresponding mounting side seats are adjustable. When the rear side of the space frame body abuts against the closed end of the C-shaped slide groove, the locking member is adjusted to limit and fix the locking member to the mounting side seat, thereby realizing the limitation and fixation of the space frame body within the mounting frame.

2. The printing screen structure for a printing press according to claim 1, characterized in that: The main body of the mesh frame includes a wire mesh and a side frame. The wire mesh is fixedly installed inside the side frame, and the side frame is limited and snapped into the C-shaped sliding groove. A pull handle is provided on the front side of the side frame.

3. The printing screen structure for a printing press according to claim 1, characterized in that: A limiting end plate is installed and connected between the front ends of the two mounting side seats. The two ends of the limiting end plate are provided with slots. The limiting end plate is matched and snapped into the front end of the mounting side seat through the slots. A limiting plug is provided in the slot. The limiting plug is inserted and blocked in the C-shaped sliding groove.

4. The printing screen structure for a printing press according to claim 3, characterized in that: The limiting end plate is provided with an avoidance slot in the middle.

5. A printing screen structure for a printing press according to claim 1, characterized in that: Mounting plates are provided at both the front and rear ends of the mounting side seat. A lifting cylinder is connected between the mounting plate and the base plate. A limit ring is provided at the end of the piston rod of the lifting cylinder. The limit ring is supported on the bottom surface of the mounting plate. A mounting screw is provided on the limit ring. The mounting screw passes through the mounting hole on the mounting plate and is connected to the mounting nut. The lifting cylinder is fixed to the base plate with screws.

6. The printing screen structure for a printing press according to claim 1, characterized in that: An auxiliary rear frame is fixedly connected between the rear ends of the two mounting side seats. An auxiliary slot is provided on the auxiliary rear frame. When the space frame body is installed in place on the mounting frame, the rear end of the space frame body is matched and snapped into the auxiliary slot.

7. A printing screen structure for a printing press according to claim 1, characterized in that: The locking component includes a main sliding block, which is slidably engaged in the C-shaped groove. A limiting groove is provided at the top of the C-shaped groove, and a limiting protrusion is provided at the top of the main sliding block. The limiting protrusion is slidably engaged in the limiting groove, and a limiting screw is provided at the top of the limiting protrusion. The end of the limiting screw extends out of the C-shaped groove and connects with the locking nut.

8. A printing screen structure for a printing press according to claim 7, characterized in that: An L-shaped folding plate is provided on the limiting protrusion. The L-shaped folding plate is attached to and snapped onto the side of the mounting side seat. A clamping screw is provided on the vertical section of the L-shaped folding plate. The end of the clamping screw passes through the L-shaped folding plate and is clamped and fixed to the side of the mounting side seat.

9. A printing screen structure for a printing press according to claim 7, characterized in that: The bottom of the main sliding block is provided with a locking slider, and the bottom surface of the C-shaped sliding groove is provided with a locking groove, and the locking slider is slidably engaged in the locking groove.

10. A printing screen structure for a printing press according to claim 7, characterized in that: One end of the main sliding block extends out of the C-shaped groove to form an abutment portion. The abutment portion is limited and attached to the front end face of the space frame body. A bottom support plate is provided on the abutment portion. A second clamping screw is provided on the bottom support plate. The bottom support plate is supported on the bottom surface of the space frame body. The end of the second clamping screw passes through the bottom support plate and is clamped and fixed to the bottom surface of the space frame body.

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