Screen stretching device of screen printing plate
The pneumatically driven wire mesh stretching device uses gas flow and guide plates to control the stretching and tension of the wire mesh, solving the problems of low efficiency and poor quality in wire mesh stretching and achieving a highly efficient and stable wire mesh stretching process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-31
AI Technical Summary
Existing technologies have low efficiency in stretching wire mesh, and manual handling leads to poor stretching quality and easily leaves creases on the wire mesh.
The pneumatically driven mesh tensioning device uses gas flow to stretch and tighten the mesh, combined with guide plates and elastic devices, to control the stretching and tension of the mesh and prevent it from loosening.
It improves the efficiency and quality of wire mesh stretching, ensures that the wire mesh maintains a stable and stretched state, and avoids the crease problem caused by manual handling.
Smart Images
Figure CN224060648U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a net device field, especially a net device of screen. BACKGROUND
[0002] When the silk screen is stretched, a group of air cylinders drive the clamping plate to clamp the edge of the silk screen, and another group of air cylinders drive the clamping plate to move horizontally to stretch the silk screen.
[0003] If the silk screen cannot be stretched, the clamping plate will leave creases on the silk screen after clamping, affecting the quality of the screen. Therefore, the silk screen is manually threaded through the clamping plate and repeatedly arranged, resulting in low silk screen stretching efficiency.
[0004] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY
[0005] In view of the above shortcomings of the prior art, the purpose of the utility model is to provide a net device of screen to solve the problem of low silk screen stretching efficiency caused by manually threading the silk screen through the clamping plate and repeatedly arranging the silk screen.
[0006] To achieve the above purpose, the technical scheme of the utility model is as follows:
[0007] A net device of screen;
[0008] It includes a main block, a channel formed in the main block, a pressing block slidingly arranged in the main block, and a lifting mechanism arranged at both ends of the main block.
[0009] Wherein, the silk screen penetrates the main block; one end of the channel is connected to the air source, and the other end of the channel extends to the silk screen and the pressing block respectively; the lifting mechanism drives the main block to move up and down; when the pressing block slides, it shields or opens the other end of the channel extending to the silk screen.
[0010] Further technical solutions are that the channel includes a first space connected to the air source, a second space extending to the silk screen, and a third space extending to the pressing block; wherein the first space is connected to the second space and the third space respectively; the second space and the silk screen form an acute angle.
[0011] Further technical solutions are that a guide plate and a first power device are arranged on the main block; the first power device drives the guide plate to swing, and the guide plate is located between the second space inlet and the third space inlet.
[0012] Further technical solutions are that the pressing block is formed with an inclined surface near one end of the third space; and the inclined surface faces the third space entrance.
[0013] Further technical solutions are that the second space outlet is formed with a guide strip; and the distance between adjacent guide strips gradually increases.
[0014] Further technical solutions are that the main block is provided with movable blocks and elastic devices; the movable blocks are oppositely arranged; the pressing block presses the screen between the movable blocks; and the elastic devices push the movable blocks to tightly contact the pressing block.
[0015] Further technical solutions are that the movable blocks are formed with arc surfaces near one side of the screen; and the arc surfaces of the movable blocks face each other.
[0016] Further technical solutions are that the lifting mechanism is a pneumatic cylinder, an oil cylinder or an electric cylinder.
[0017] Compared with the prior art, the beneficial technical effects of the present application are as follows: (1) the gas enters from one end of the channel, approaches the screen and the pressing block, a part of the gas flows above the screen after being discharged from the other end of the channel, the gas expands and tightens the screen, another part of the gas approaches the pressing block from the other end of the channel, pushes the pressing block to move downward to press the screen, so that the screen keeps in an expanded and tightened state.
[0018] (2) the second space and the screen form an acute angle, a part of the gas can flow above the screen when being discharged from the second space, which plays a role in expanding the screen and does not impact the screen.
[0019] (3) the guide plate is driven to swing by the first power device, so as to control the force and time of screen expansion.
[0020] (4) the gas gradually diffuses under the action of the guide strip during the flow process, thereby increasing the expansion range of the gas on the screen.
[0021] (5) when the pressing block presses the screen between the movable blocks, the screen is bent, the elastic device pushes the movable blocks to tightly contact the pressing block, thereby pressing the two sides of the bent position of the screen, avoiding the loosening of the screen, so that the screen can keep in an expanded and tightened state. BRIEF DESCRIPTION OF DRAWINGS
[0022] Fig. 1 The structure schematic diagram of the screen stretching device of the screen printing plate according to the embodiment of the present application is shown.
[0023] Fig. 2 The enlarged structure schematic diagram of the guide plate position according to the embodiment of the present application is shown.
[0024] Fig. 3The enlarged structure schematic diagram of the movable block position of the embodiment of the utility model is shown.
[0025] The signs in the drawings are as follows: 1, main block; 11, guide plate; 12, first power device; 13, movable block; 14, elastic device; 15, arc surface; 2, channel; 21, first space; 22, second space; 23, third space; 24, guide strip; 3, pressing block; 31, inclined surface; 4, lifting mechanism. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical scheme and advantages of the utility model more clear, the device provided by the utility model is further described in detail below in combination with the drawings and specific embodiments. According to the following description, the advantages and features of the utility model will be more clear. It should be noted that the drawings are greatly simplified and all use non-precise proportions, and are only used to facilitate and clarify the purpose of assisting in the description of the embodiments of the utility model. In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, please refer to the drawings. It should be noted that the structures, proportions, sizes and the like shown in the drawings attached to the specification are only used to cooperate with the content disclosed in the specification, so that people skilled in the art can understand and read, and are not used to limit the conditions for implementing the utility model, so they do not have substantial technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model.
[0027] Fig. 1 The structure schematic diagram of the stretching device of the screen of the embodiment of the utility model is shown. Fig. 2 The enlarged structure schematic diagram of the guide plate position of the embodiment of the utility model is shown. Fig. 3 The enlarged structure schematic diagram of the movable block position of the embodiment of the utility model is shown. In combination with Figs. 1-3 The utility model discloses a stretching device of screen.
[0028] The stretching device of screen comprises a main block 1 arranged in the front-back direction, a channel 2 formed in the main block 1, a pressing block 3 arranged in the main block 1 and slid in the up-down direction and a lifting mechanism 4 arranged at the front and back ends of the main block 1.
[0029] Among them, the silk screen left and right direction penetrates the main block 1. One end of the channel 2 is communicated with the gas source, and the other end of the channel 2 extends to the silk screen and the pressing block 3 respectively. The gas enters from one end of the channel 2 and then approaches the silk screen and the pressing block 3 respectively, a part of the gas flows through the upper part of the silk screen after being discharged from the other end of the channel 2, and the gas relaxes and tightens the silk screen, and the other part of the gas approaches the pressing block 3 from the other end of the channel 2, pushes the pressing block 3 to move downward and presses the silk screen, so that the silk screen maintains the relaxed and tightened state.
[0030] The driving end of the lifting mechanism 4 moves up and down to drive the main block 1 to move up and down, so that the wire screen is covered on the screen frame, and then manual gluing is facilitated.
[0031] During the downward sliding of the pressing block 3, the pressing block 3 gradually covers the other end of the channel 2 extending to the wire screen, and the gas gradually concentrates on the pressing block 3, so that the pressing block 3 presses the wire screen with a larger pressure to avoid the loosening of the wire screen. After the ventilation in the channel 2 is stopped, the pressing block 3 is lifted upward, and the pressing block 3 reopens the other end of the channel 2 extending to the wire screen.
[0032] The channel 2 includes a first space 21 connected to the gas source, a second space 22 extending to the wire screen, and a third space 23 extending to the pressing block 3; wherein the first space 21 is connected to the second space 22 and the third space 23 respectively; and the second space 22 and the wire screen form an acute angle.
[0033] The first space 21 is formed in the up-down direction. The left end of the second space 22 is connected to the first space 21, and the right end of the second space 22 is inclined downward, so that the second space 22 and the wire screen form an acute angle. A part of the gas is discharged from the second space 22 to flow above the wire screen, which plays a role in stretching the wire screen without impacting the wire screen. The left end of the third space 23 is connected to the first space 21, and the pressing block 3 is inserted into the right end of the third space 23 in the up-down direction. Another part of the gas is discharged from the third space 23 to push the pressing block 3 to move downward.
[0034] A pressure relief valve is arranged on the main block 1, and the pressure relief valve is connected to the third space 23. When the gas in the third space 23 is relatively more and the pressure is relatively large, the pressure relief valve discharges the gas in the third space 23 to complete the pressure relief.
[0035] A guide plate 11 and a first power device 12 are arranged on the main block 1. The first power device 12 drives the guide plate 11 to swing, and the guide plate 11 is located between the inlet of the second space 22 and the inlet of the third space 23.
[0036] For example, the first power device 12 is a motor. The greater the angle of the guide plate 11 driven by the first power device 12 to swing upward, the more the gas passing through the second space 22, the greater the force of the wire screen stretching, the less the gas passing through the third space 23, the slower the pressing block 3 moves downward, and the longer the time of the wire screen stretching.
[0037] The greater the angle of the guide plate 11 driven by the first power device 12 to swing downward, the less the gas passing through the second space 22, the smaller the force of the wire screen stretching, the more the gas passing through the third space 23, the faster the pressing block 3 moves downward, and the shorter the time of the wire screen stretching.
[0038] The guide plate 11 is driven to swing by the first power device 12, so as to control the force of the wire screen stretching and the time of the wire screen stretching.
[0039] The pressing block 3 is formed with a slope 31 at one end close to the third space 23. The slope 31 is towards the entrance of the third space 23. The gas flows along the third space 23 and contacts the slope 31, and the gas forms a downward pushing force on the pressing block 3 through the slope 31.
[0040] The gas flows from left to right along the third space 23, and the pressing block 3 slides up and down. The slope 31 makes the gas force accurately applied to the pressing block 3.
[0041] The second space 22 is formed with guide strips 24 at the exit. The distance between the adjacent guide strips 24 gradually increases from left to right.
[0042] The guide strips 24 are arranged in the left-right direction. When the gas is discharged from the exit of the second space 22, it flows from left to right along the adjacent guide strips 24. During the flow, the gas gradually spreads under the action of the guide strips 24, thereby increasing the stretching range of the gas on the screen.
[0043] The main block 1 is provided with movable blocks 13 and elastic devices 14. The elastic device 14 is a spring in an example. The movable blocks 13 are arranged at intervals. When the pressing block 3 presses the screen into the movable blocks 13, the screen is bent, and the elastic device 14 pushes the movable blocks 13 to tightly contact the pressing block 3, thereby pressing the two sides of the bent position of the screen, avoiding the loosening of the screen, and enabling the screen to continuously maintain the stretched and tensioned state.
[0044] The movable block 13 is formed with an arc surface 15 close to the screen. The arc surface 15 is at the upper end of the movable block 13, avoiding the generation of edges close to the screen, and avoiding scratching the screen by the movable block 13.
[0045] The upper arc surfaces 15 of the movable blocks 13 are close to each other, forming a gap at the upper end of the movable blocks 13. During the downward movement of the pressing block 3, the movable blocks 13 are conveniently pushed away by contacting the arc surfaces 15, and the screen is pushed into the movable blocks 13.
[0046] The lifting mechanism 4 is a pneumatic cylinder, an oil cylinder or an electric cylinder. The driving end of the lifting mechanism 4 is connected to the main block 1. The lifting mechanism 4 is provided with two groups of lifting mechanisms respectively located at the front and rear sides of the main block 1. The lifting mechanism 4 drives the main block 1 to move up and down, thereby driving the screen to move up and down, so that the screen covers and contacts the screen frame to complete the gluing.
[0047] The screen stretching device of the screen printing plate can be arranged in the front-rear direction or the left-right direction. Through the arrangement of the screen stretching devices of the screen printing plates in different directions, the screen stretching devices of the screen printing plates are arranged around the screen, and the screen is stretched and tensioned from different directions by the screen stretching devices of the screen printing plates.
[0048] Any combination of the technical features in the above-described embodiments can be made, and for the sake of brevity, not all possible combinations are described, however, as long as the combination of the technical features does not exist in contradiction, it shall be considered as within the scope of the present disclosure.
[0049] The above-described embodiments only express several implementation manners of the present application, the description is relatively specific and detailed, but it shall not be understood as a limitation on the scope of the present application patent. It should be pointed out that, for ordinary skilled persons in the art, under the premise of not departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent shall be subject to the appended claims.
Claims
1. A screen stretching device, characterized in that, The application relates to a silk screen printing device. The device comprises a main block (1), a channel (2) formed in the main block (1), a pressing block (3) slidingly arranged in the main block (1), and a lifting mechanism (4) arranged at both ends of the main block (1). The silk screen is arranged through the main block (1); one end of the channel (2) is connected with an air source, the other end of the channel (2) extends to the silk screen and the pressing block (3) respectively; the lifting mechanism (4) drives the main block (1) to move up and down; when the pressing block (3) slides, the other end of the channel (2) extending to the silk screen is shielded or opened. The channel (2) comprises a first space (21) connected with the air source, a second space (22) extending to the silk screen, and a third space (23) extending to the pressing block (3); the first space (21) is connected with the second space (22) and the third space (23) respectively; the second space (22) and the silk screen form an acute angle. A guide plate (11) and a first power device (12) are arranged on the main block (1); the first power device (12) drives the guide plate (11) to swing; the guide plate (11) is located between the inlet of the second space (22) and the inlet of the third space (23). A slope (31) is formed at one end of the third space (23) close to the pressing block (3); the slope (31) faces the inlet of the third space (23).
2. The screen frame assembly of claim 1, wherein, A guide strip (24) is formed at the outlet of the second space (22); the distance between the adjacent guide strips (24) gradually increases.
3. The screen frame assembly of claim 2, wherein the frame assembly is configured to be attached to a screen printing frame. A movable block (13) and an elastic device (14) are arranged in the main block (1); the movable blocks (13) are arranged at intervals; the pressing block (3) presses the silk screen into the movable blocks (13); the elastic device (14) pushes the movable blocks (13) to tightly contact the pressing block (3).
4. The screen frame assembly of claim 2, wherein the frame assembly is configured to be attached to a screen printing frame. Arc surfaces (15) are formed on the sides of the movable blocks (13) close to the silk screen; the arc surfaces (15) on the movable blocks (13) are opposite to each other.
5. The screen frame assembly of claim 2, wherein the frame assembly is configured to be attached to a screen printing frame. The lifting mechanism (4) is a pneumatic cylinder, an oil cylinder or an electric cylinder.
6. The screen frame assembly of claim 2, wherein, 7. An apparatus for stretching a screen as claimed in claim 6, wherein 8. The screen frame assembly of claim 1 wherein,