A pneumatic clamping mechanism for a steel mesh

Abstract

The utility model discloses a kind of steel net pneumatic clamping mechanisms, it is related to transfer printing technical field, including outer shell, pneumatic piston module, clamping plate and steel net;Outer shell provides installation support for each component, the pneumatic piston module installed in its interior contains frame, corner connecting piece and multiple groups of piston assembly, frame is connected through corner connecting piece between frame, frame is provided with cavity, piston assembly is movably arranged in cavity, same side piston assembly telescopic end is commonly connected clamping plate to clamp steel net.Frame and corner connecting piece are internally provided with gas conveying passage, gas conveying passage is connected with gas pipe joint, cavity and gas conveying passage and adjacent cavity are communicated through flow guide opening, piston assembly also contains spring sleeve plug rod.This mechanism can realize clamping plate synchronous movement, ensure that steel net clamping is uniform and stable, improve positioning accuracy, meet transfer printing operation demand, convenient operation and high efficiency.

Description

Technical Field

[0001] This utility model relates to the field of transfer printing technology, and in particular to a pneumatic clamping mechanism for steel mesh. Background Technology

[0002] Currently, most steel mesh clamping mechanisms on the market use manual bolt fastening or a single cylinder drive structure during the transfer process. Manual bolt fastening requires manual adjustment of each bolt to fix the steel mesh, which is not only cumbersome and time-consuming, but also prone to uneven force application, leading to imbalance of the steel mesh, displacement or deformation, and making it difficult to guarantee the positioning accuracy of the steel mesh. The single cylinder drive clamping mechanism drives the clamping plate through a single cylinder, which can only achieve unilateral or opposing single-point force application, which can easily cause the clamping plate to be subjected to concentrated force, resulting in excessive local pressure on the steel mesh. At the same time, the range of force transmission of the cylinder drive is limited, which cannot ensure the synchronous movement of the clamping plate as a whole, thus affecting the stability and consistency of steel mesh clamping, and making it difficult to meet the stringent requirements of high-precision transfer operations for steel mesh clamping. Utility Model Content

[0003] To address the technical problems existing in the background art, this utility model proposes a pneumatic clamping mechanism for steel mesh.

[0004] This utility model proposes a pneumatic clamping mechanism for steel mesh, comprising an outer shell, inside which a pneumatic piston module is installed. The driving end of the pneumatic piston module is connected to a clamping plate, which together clamp and fix the steel mesh. The pneumatic piston module includes a frame installed inside the outer shell, with corner connectors connecting adjacent ends of the frame. Each frame has several cavities, and a piston assembly is movably disposed inside each cavity. The telescopic ends of several piston assemblies located on the same side are connected to corresponding clamping plates to jointly drive the clamping plates to move.

[0005] Furthermore, an air supply channel is jointly formed inside the frame and the corner connector, and the inlet of the air supply channel is connected to an air pipe connector.

[0006] Furthermore, the cavity and the gas delivery channel, as well as the two adjacent cavities, are connected by pre-reserved flow-guiding openings to allow the gas injected in the gas delivery channel to enter the interior of each cavity.

[0007] Furthermore, the piston assembly includes an end cap that is threadedly connected to the cavity opening, and a through hole is pre-drilled in the middle of the end cap.

[0008] Furthermore, the piston assembly also includes a piston plate movably disposed inside the cavity, the piston plate being adapted to the cavity, and a piston rod being connected to the end face of the piston plate facing the end cap, the piston rod moving inside the through hole.

[0009] Furthermore, a spring is fitted around the outside of the piston rod, and the two ends of the spring abut against the end cap and the piston plate.

[0010] The beneficial effects of this utility model are as follows: The pneumatic piston module inside the outer shell drives the clamping plate to hold the steel mesh. The pneumatic piston module consists of a frame, corner connectors, and multiple sets of piston assemblies. With the through air supply channel and guide opening, the air pressure is evenly distributed, which can drive multiple sets of piston assemblies on the same side to move the clamping plate synchronously. At the same time, the external spring of the piston rod assists in the reset. This not only avoids the problems of cumbersome operation, uneven force application, and concentrated force and poor synchronization of traditional manual bolt tightening, but also ensures that the clamping plate applies a uniform and stable clamping force to the steel mesh, effectively improving the positioning accuracy and clamping stability of the steel mesh. This meets the stringent requirements of steel mesh clamping in the field of transfer printing technology and ensures the quality and efficiency of transfer printing operations. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the disassembled structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the pneumatic piston module in this utility model;

[0013] Figure 3 This is a schematic diagram of the built-in air supply channel in the frame and corner connector of this utility model;

[0014] Figure 4 This is a schematic diagram showing the disassembled structure of the piston assembly in this utility model;

[0015] Figure 5 This is a schematic diagram of the assembly structure of the piston assembly in this utility model;

[0016] Figure 6 This is a schematic diagram of the assembly structure of this utility model;

[0017] Figure 7 This is a schematic diagram of the gas flow path of this utility model;

[0018] Figure 8 This is a cross-sectional perspective view of the piston assembly clamping the steel mesh in this utility model.

[0019] In the diagram: 1. Outer shell; 2. Pneumatic piston module; 21. Frame; 22. Corner connector; 23. Cavity; 24. Piston assembly; 241. End cap; 242. Plug rod; 243. Piston plate; 244. Spring; 245. Through hole; 25. Air supply channel; 26. Flow guide opening; 27. Air pipe connector; 3. Clamping plate; 4. Steel mesh; 41. Steel mesh frame. Detailed Implementation

[0020] Reference Figure 1-8The present invention proposes a pneumatic clamping mechanism for steel mesh, including an outer shell 1. A pneumatic piston module 2 is installed inside the outer shell 1. Each drive end of the pneumatic piston module 2 is connected to a clamping plate 3. The four clamping plates 3 correspond to the four sides of the steel mesh 4 respectively. Through synchronous action, they jointly realize the clamping and release of the steel mesh 4, ensuring that the steel mesh 4 is always in the center position when clamped, thus meeting the requirements of steel mesh positioning accuracy in the field of transfer printing technology.

[0021] The pneumatic piston module 2 includes four frame frames 21 installed inside the outer shell 1. The four frame frames 21 correspond to the four sides of the steel mesh 4 and are distributed in a rectangular shape. In order to ensure the sealing and structural integrity of the connection between the frame frames 21, the ends of two adjacent frame frames 21 are connected by corner connectors 22. The corner connectors 22 not only fix the frame frames 21, but also cooperate with the frame frames 21 to form a continuous gas channel, laying the foundation for subsequent air pressure transmission.

[0022] Several cavities 23 are spaced apart along the length of each frame 21. The number of cavities 23 is set according to the length of the frame 21 and the clamping force requirements to ensure that the clamping plate 3 is subjected to uniform force. A set of piston assembly 24 is movably installed inside each cavity 23. The piston assembly 24 can reciprocate along the axis of the cavity 23. The telescopic ends of several piston assemblies 24 located on the same side frame 21 are fixedly connected to the corresponding clamping plate 3 on that side. Through the synchronous telescopic extension and retraction of multiple piston assemblies 24, the clamping plate 3 is driven to move smoothly, avoiding the clamping plate 3 from tilting due to uneven force caused by a single power source, which would affect the clamping stability of the steel mesh 4.

[0023] To achieve synchronous driving of all piston assemblies 24, a through-flow air passage 25 is opened inside the frame 21 and the corner connector 22. The air passage 25 extends along the inner side of the rectangular frame to form a complete gas flow loop. The inlet end of the air passage 25 is connected to an air pipe connector 27. The air pipe connector 27 is used to connect with external air source equipment and is the only channel for external air pressure to enter the clamping mechanism. Its interface specifications can be adapted according to the actual air source pipeline requirements to ensure the air pressure transmission is sealed.

[0024] Meanwhile, in order to ensure that the gas input from the external gas source can be evenly distributed into each cavity 23, guide openings 26 are pre-machined at the connection between the cavity 23 and the gas delivery channel 25, as well as between two adjacent cavities 23, so as to ensure that all piston assemblies 24 can move synchronously.

[0025] The piston assembly 24 includes an end cap 241, a piston rod 242, a piston plate 243, a spring 244, and a through hole 245. The end cap 241 is fixed to the opening of the cavity 23 by a threaded connection. The threaded connection not only facilitates the installation and subsequent maintenance and disassembly of the piston assembly 24, but also seals the cavity 23 through the threaded engagement, preventing gas from leaking from the opening of the cavity 23 and ensuring stable gas pressure inside the cavity 23. In the middle of the end cap 241, a through hole 245 with a diameter adapted to the piston rod 242 is reserved. The through hole 245 provides guidance for the reciprocating movement of the piston rod 242 and prevents the piston rod 242 from deviating during the movement.

[0026] The piston plate 243 is movably disposed inside the cavity 23, and its outer diameter is perfectly matched with the inner diameter of the cavity 23. The outer circumferential surface of the piston plate 243 is sealed. If a sealing ring is added, it can ensure that an effective air pressure difference can be formed in the cavity 23 area on both sides of the piston plate 243, providing power for the movement of the piston plate 243. The center of the end face of the piston plate 243 facing the end cover 241 is fixedly connected to one end of the piston rod 242. The other end of the piston rod 242 passes through the through hole 245 of the end cover 241 and is connected to the clamping plate 3. When the piston plate 243 moves in the cavity 23, it will directly drive the piston rod 242 to move synchronously along the through hole 245, thereby pushing the clamping plate 3 to move.

[0027] In addition, a spring 244 is sleeved on the outside of the piston rod 242. One end of the spring 244 abuts against the inner end face of the end cover 241, and the other end abuts against the end face of the piston plate 243 facing the end cover 241. When the spring 244 is in its natural state, it will apply a spring force to the piston plate 243 toward the bottom of the cavity 23, keeping the piston rod 242 in a retracted state. At this time, the clamping plate 3 is in the initial position away from the steel mesh 4. When air pressure is introduced into the cavity 23, the air pressure overcomes the spring force of the spring 244 and pushes the piston plate 243 to move, realizing the clamping action of the clamping plate 3. The spring 244 provides the power basis for the subsequent reset of the clamping plate 3.

[0028] When it is necessary to clamp the steel mesh 4, place the steel mesh 4 in the center of the area enclosed by the four clamping plates 3. Then, an external air source introduces compressed gas into the air supply channel 25 through the air pipe connector 27. The compressed gas flows along the air supply channel 25 and enters each cavity 23 on the frame 21 through each guide opening 26. The air pressure in the cavity 23 gradually increases and acts on the end face of the piston plate 243. When the thrust generated by the air pressure is greater than the elastic force of the spring 244, the piston plate 243 moves along the cavity 23 towards the end cover 241, and at the same time drives the plug rod 242 to extend outward along the through hole 245. The gas flow path is shown in the attached figure. Figure 7As shown by the red dotted line, the arrow indicates the direction of gas flow. Under the instantaneous action of the gas along this path, all the plug rods 242 will extend synchronously and push the corresponding clamping plates 3 to move towards the steel mesh 4. The four clamping plates 3 apply clamping force synchronously from the four sides of the steel mesh 4, and apply clamping force to the steel mesh frame 41 from the outside to the inside, finally clamping and fixing the steel mesh 4 stably in the preset position to meet the requirements of the transfer operation for steel mesh positioning.

[0029] When the transfer operation is completed and the steel mesh 4 needs to be released, the external air source is cut off and the air supply channel 25 is vented through the air pipe connector 27. The air pressure in the cavity 23 drops rapidly. Under the action of its own elastic restoring force, the spring 244 pushes the piston plate 243 to reset to the bottom of the cavity 23. The piston plate 243 drives the stopper rod 242 to retract into the cavity 23. The clamping plate 3 moves away from the steel mesh 4 synchronously with the stopper rod 242, and the steel mesh 4 is released. The operator can take out the steel mesh 4 for subsequent replacement or treatment.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pneumatic clamping mechanism for steel mesh, comprising a housing (1), characterized in that, The pneumatic piston module (2) is installed inside the outer shell (1). The drive end of the pneumatic piston module (2) is connected to the clamping plate (3). The clamping plate (3) clamps and fixes the steel mesh (4). The pneumatic piston module (2) includes a frame (21) installed inside the outer shell (1). The adjacent ends of the frame (21) are connected by a corner connector (22). Several cavities (23) are opened inside each frame (21). A piston assembly (24) is movably arranged inside each cavity (23). The telescopic ends of several piston assemblies (24) located on the same side are connected to the corresponding clamping plate (3) to drive the clamping plate (3) to move.

2. The pneumatic clamping mechanism for steel mesh according to claim 1, characterized in that, An air supply channel (25) is jointly opened inside the frame (21) and the corner connector (22), and the inlet of the air supply channel (25) is connected to the air pipe connector (27).

3. The pneumatic clamping mechanism for steel mesh according to claim 2, characterized in that, The cavity (23) is connected to the gas delivery channel (25) and to two adjacent cavities (23) by a pre-reserved guide opening (26) so that the gas injected in the gas delivery channel (25) can enter the interior of each cavity (23).

4. The pneumatic clamping mechanism for steel mesh according to claim 1, characterized in that, The piston assembly (24) includes an end cap (241) that is threaded to the opening of the cavity (23), and the end cap (241) has a through hole (245) pre-drilled in the middle.

5. The pneumatic clamping mechanism for steel mesh according to claim 4, characterized in that, The piston assembly (24) further includes a piston plate (243) movably disposed inside the cavity (23), the piston plate (243) being adapted to the cavity (23), and the piston plate (243) having a piston rod (242) connected to the end face of the piston plate (243) facing the end cap (241), the piston rod (242) moving inside the through hole (245).

6. The pneumatic clamping mechanism for steel mesh according to claim 5, characterized in that, A spring (244) is fitted around the outside of the piston rod (242), and the two ends of the spring (244) abut against the end cap (241) and the piston plate (243).

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