Metal net window screen pressing machine
By designing a metal mesh window screen press with a down frame body with a beam and a synergistic pressing wheel structure, the problems of unstandard mesh, poor flatness and insufficient impact resistance are solved, and a flatter and stronger impact resistance window screen effect is achieved.
Patent Information
- Application Number
- CN202421806138.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-29
AI Technical Summary
When the existing window frame yarn pressing device assembles mesh screens, the mesh is not straight, has poor flatness, insufficient impact resistance, and is prone to rolling during the down pressure of the glue strip, resulting in the mesh being unable to effectively stretch and flatten.
A metal mesh window screen press is designed, which adopts a structure of a down-pressure frame body with a beam, a down-pressure cylinder, a limit strip and a pressing wheel frame rail. Through the synergy between the first and second pressing wheels, the rubber strips and mesh do not roll during the down-pressure process and effectively tighten the mesh.
The window screen mesh surface is smoother, more impact resistance, and the adhesive strips are firmly fixed and easy to use.
Smart Images
Figure CN222985602U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of window frame screen pressing devices, and particularly relates to a metal mesh window screen pressing machine. Background Art
[0002] During the production of metal mesh window screens, it is necessary to press the periphery of the metal mesh into the groove of the window frame, and then press a rubber strip on the outer side of the mesh piece in the groove. The existing window frame screen pressing device includes a frame body and a workbench located on the frame body. Above the workbench, there is a downward pressing frame body with a cross beam. On the cross beam, there is a downward pressing cylinder. Below the downward pressing top rod of the downward pressing cylinder, there is a lower pressing plate. On the upper surface of the workbench, there is a limiting strip. On the workbench on one side of the limiting strip, there is a horizontal pressing cylinder with a horizontal top rod. On the cross beam, there is a pressing wheel frame track. On the pressing wheel frame track, there is a liftable pressing wheel. The pressing wheel is a pulley with an annular groove in the middle. After fixing the window frame on the workbench, lay and fix the mesh piece, place the rubber strip above the mesh piece corresponding to the groove of the window frame, and while pressing down the pressing wheel and pushing forward, press the rubber strip and the edge of the mesh piece into the groove of the window frame at one time. If the above equipment and method are used to process non-mesh pieces such as plastic nets and nylon nets, because non-mesh pieces are easier to stretch and deform, the assembly can be well completed. However, if this equipment and method are used to assemble window screens with mesh pieces, there are the following defects: First, due to the large resilience of the mesh piece and its difficulty in stretching, after directly pressing the pulley on the rubber strip, because the rubber strip is circular, the rubber strip rolls during the downward pressing process, making the mesh piece pressed into the groove of the window frame not straight, resulting in poor flatness of the mesh piece and poor impact resistance of the mesh surface; Second, as the rubber strip is pressed down, the mesh piece bends near the inner side of the window frame. Since the side of the mesh piece near the inner side is pressed by the lower pressing plate, in this way, during the downward pressing process of the mesh piece, only the edge of the mesh piece located outside the frame can be curled downward, and the mesh piece inside the window frame as the window screen cannot be flattened and stretched tightly, and the impact resistance and light transmission performance of the window screen are poor; Third, during the downward pressing process of the rubber strip, the mesh piece is prone to rebound due to its own properties, resulting in poor flatness of the window screen. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is to provide a metal mesh window screen pressing machine with a flat window screen mesh surface, good impact resistance, convenient use, and firm fixation of the rubber strip.
[0004] To solve the above problems, the technical solution adopted by the metal mesh window screen wire pressing machine of the present utility model is as follows: It includes a frame body and a workbench located on the frame body. Above the workbench, there is a downward pressing frame body with a cross beam. On the cross beam, there is a downward pressing air cylinder. Below the downward pressing top rod of the downward pressing air cylinder, there is a lower pressing plate. On the upper surface of the workbench, there is a limiting strip. On the workbench on one side of the limiting strip, there is a horizontal pressing cylinder with a horizontal pressing rod. On the cross beam, there is a pressing wheel frame track. On the pressing wheel frame track, there is a first pressing wheel frame and a second pressing wheel frame that can move along the pressing wheel frame track. On the first pressing wheel frame, there is a first pressing wheel seat that can be vertically lifted and lowered. Below the first pressing wheel seat, there is a first pressing wheel. Below the second pressing wheel frame, there is a second pressing wheel seat that can be vertically lifted and lowered. Below the second pressing wheel seat, there is a second pressing wheel; the first pressing wheel is a pulley; the periphery of the second pressing wheel is a cylindrical surface; on the side of the first pressing wheel, there is a first limiting disk, and on the side of the second pressing wheel, there is a second limiting disk.
[0005] Its additional technical features are as follows:
[0006] The specifications of the first pressing wheel, the first limiting disk, the second pressing wheel, the second limiting disk, the frame groove, and the rubber strip satisfy the following formula: R1 - r1 ≤ h - (d + h1), where R1 is the radius of the first pressing wheel; r1 is the radius of the first limiting disk; h is the depth of the frame groove; d is the diameter of the rubber strip; h1 is the depth of the groove of the first pressing wheel; R2 - r2 ≥ h - d, where R2 is the radius of the second pressing wheel; r2 is the radius of the second limiting disk; h is the depth of the frame groove; d is the diameter of the rubber strip;
[0007] On the first pressing wheel frame, there is a first pressing wheel air cylinder. The first pressing wheel seat is fixed to the first pressing wheel top rod of the first pressing wheel air cylinder. On the second pressing wheel frame, there is a second pressing wheel air cylinder. The second pressing wheel seat is fixed to the second pressing wheel top rod of the second pressing wheel air cylinder;
[0008] On the pressing wheel frame track in front of the second pressing wheel frame, there is a third pressing wheel frame that can move along the pressing wheel frame track. On the third pressing wheel frame, there is a third pressing wheel seat that can be vertically lifted and lowered. Below the third pressing wheel seat, there is a third pressing wheel. On the side of the third pressing wheel, there is a third limiting disk;
[0009] The third pressing wheel is a frustum shape with a slightly larger diameter near the outer side of the frame.
[0010] Compared with the prior art, the metal mesh window screen wire pressing machine provided by the present utility model has the following advantages:
[0011] First, since it includes a frame body and a workbench located on the frame body, a downward pressure frame body with a cross beam is provided above the workbench. A downward pressure cylinder is provided on the cross beam. A lower pressure plate is provided below the downward pressure top rod of the downward pressure cylinder. A limiting strip is provided on the upper surface of the workbench. A horizontal tightening cylinder with a horizontal top rod is provided on the workbench on one side of the limiting strip. A pressure wheel frame track is provided on the cross beam. A first pressure wheel frame and a second pressure wheel frame that can move along the pressure wheel frame track are provided on the pressure wheel frame track. A first pressure wheel seat that can be vertically lifted is provided on the first pressure wheel frame. A first pressure wheel is provided below the first pressure wheel seat. A second pressure wheel seat that can be vertically lifted is provided below the second pressure wheel frame. A second pressure wheel is provided below the second pressure wheel seat; the first pressure wheel is a pulley; the periphery of the second pressure wheel is a cylindrical surface; a first limiting disc is provided on the side of the first pressure wheel, and a second limiting disc is provided on the side of the second pressure wheel; retract the downward pressure top rod of the downward pressure cylinder, place the window frame on the workbench, and position the frame of the side of the window frame with the rubber strip between the limiting strip and the horizontal top rod of the horizontal tightening cylinder. Then fix the frame of the window frame between the limiting strip and the horizontal top rod through the horizontal top rod; lay the mesh on top of the window frame, lower the downward pressure top rod of the downward pressure cylinder, and the lower pressure plate presses on top of the mesh and fixes the mesh; use scissors to cut off the corners of the mesh at both ends of the fixed frame, and the cutting angle is 45 degrees with the frame, and the edge of the mesh is flush with the inner corner vertex of the window frame; lower the first pressure wheel seat so that the first limiting disc presses on the upper edge of the frame slot, push the first pressure wheel frame forward along the pressure wheel frame track, and the first pressure wheel bends the mesh corresponding to the frame slot, and a mesh groove is formed at the frame slot of the mesh; retract the first pressure wheel frame to the end of the fixed frame, put the end of the rubber strip into the end of the mesh groove, lower the first pressure wheel seat so that the first pressure wheel presses on the end of the rubber strip, and the wheel groove of the first pressure wheel just catches above the rubber strip, and the first limiting disc presses on the upper edge of the frame slot. Smooth the rubber strip along the mesh groove, push the first pressure wheel frame forward along the pressure wheel frame track. Under the action of the first pressure wheel, the axis of the rubber strip is lower than the upper edge of the frame slot, the lower half of the rubber strip is located in the mesh groove, and the upper part of the rubber strip is caught by the wheel groove of the first pressure wheel and will not roll during the downward pressure process; rotate the window frame to initially press down the mesh and rubber strip in other frames; move the first pressure wheel frame away, move the second pressure wheel frame above the fixed frame, make the second pressure wheel press on the rubber strip, and the second limiting disc presses on the upper edge of the frame slot. Push the second pressure wheel frame forward along the pressure wheel frame track. Under the action of the second pressure wheel, the rubber strip and the mesh groove in the frame slot are further pressed into the frame slot; cut off the mesh outside the frame slot;
[0012] Advantages (1). First, use the first pressing wheel to bend the mesh corresponding to the frame slot, and a mesh groove is formed at the frame slot; the first pressing wheel directly presses the mesh into the frame slot. When the first pressing wheel moves forward, the lower end of the first pressing wheel is inserted into the frame slot, ensuring that the mesh groove does not bend and the window screen mesh is flatter.
[0013] Advantages (2). Put the end of the rubber strip into the end of the mesh groove, press down the first pressing wheel seat, so that the first pressing wheel presses on the end of the rubber strip. The wheel groove of the first pressing wheel just catches above the rubber strip, and the first limiting disc presses on the upper edge of the frame slot. Smooth the rubber strip along the mesh groove, and push the first pressing wheel frame forward along the track of the pressing wheel frame. When initially pressing down the rubber strip and the mesh, the rubber strip will not roll over and is easily pressed into the frame slot. Moreover, when pressing down the rubber strip and the mesh, the mesh near the inner side of the window frame also moves downward to the frame slot, and the mesh serving as the window screen is tightened and flattened.
[0014] Advantages (3). The first pressing wheel is a pulley with a wheel groove. When initially pressing down the rubber strip and the mesh, the rubber strip is stuck in the wheel groove of the first pressing wheel. During the pressing process, the rubber strip is not easy to roll over. The periphery of the second pressing wheel is a cylindrical surface, and the pressing force is greater, so that the rubber strip and the mesh are well pressed into the frame slot, avoiding the mesh and the rubber strip from coming out of the frame slot.
[0015] Advantages (4). First, initially press down the rubber strip and the mesh, and initially press the rubber strip and the mesh of the four frames into the frame slot. Then, press down the rubber strip and the mesh again. In this way, the window screen will not be distorted, is flatter, and has stronger impact resistance.
[0016] Advantages (5).
[0017] Use scissors to cut off the corner of the mesh along the line at a 45-degree angle to the frame. The mesh is flush with the inner corner vertex of the window frame. The first pressing wheel pressing the mesh groove is not affected, and the first pressing wheel and the second pressing wheel pressing down the mesh are not affected. The rubber strip and the mesh are pressed more firmly at the four corners of the window frame, avoiding the mesh from coming out and also avoiding the holes in the mesh at the corners of the window frame.
[0018] Advantages (6).
[0019] A pressing frame body with a cross beam is arranged above the workbench. A pressing cylinder is arranged on the cross beam. A lower pressing plate is arranged below the pressing top rod of the pressing cylinder. A limiting strip is arranged on the upper surface of the workbench. When pressing the mesh into the frame slot, the other side of the mesh is pressed by the lower pressing plate, avoiding the mesh from shifting during the pressing process of the rubber strip and causing the mesh to tilt or twist.
[0020] Second, since the specifications of the first pressing wheel, the first limiting disc, the second pressing wheel, the second limiting disc, the frame slot, and the rubber strip satisfy the following formula: R1 - r1 ≤ h - (d + h1), where R1 is the radius of the first pressing wheel; r1 is the radius of the first limiting disc; h is the depth of the frame slot; d is the diameter of the rubber strip; h1 is the depth of the groove of the first pressing wheel; R2 - r2 ≥ h - d, where R2 is the radius of the second pressing wheel; r2 is the radius of the second limiting disc; h is the depth of the frame slot; d is the diameter of the rubber strip; when bending the mesh, the bending depth of the mesh is relatively shallow, only ensuring that the rubber strip can be inserted. After inserting the rubber strip, when pressing down for the first time, there is space for the mesh and the rubber strip to move downward, and the mesh is further tightened. At this time, there is a certain distance between the bottom of the mesh and the bottom of the frame slot. When pressing down the rubber strip and the mesh again, the mesh is further tightened, further improving the flatness of the mesh surface;
[0021] Third, since a first pressing wheel cylinder is provided on the first pressing wheel frame, the first pressing wheel seat is fixed to the first pressing wheel ejector rod of the first pressing wheel cylinder, a second pressing wheel cylinder is provided on the second pressing wheel frame, the second pressing wheel seat is fixed to the second pressing wheel ejector rod of the second pressing wheel cylinder, and the first pressing wheel and the second pressing wheel are respectively pressed downward by the first pressing wheel cylinder and the second pressing wheel cylinder, which is more convenient to use;
[0022] Fourth, a third pressing wheel frame that can move along the pressing wheel frame track is provided on the pressing wheel frame track in front of the first pressing wheel frame. A third pressing wheel seat that can be vertically lifted is provided on the third pressing wheel frame. A third pressing wheel is provided below the third pressing wheel seat, and a third limiting disc is provided on the side of the third pressing wheel. A mesh groove is folded out on the mesh by the third pressing wheel, which is more convenient to use;
[0023] Fifth, since the third pressing wheel is in the shape of a frustum of a cone with a slightly larger diameter near the outer side of the frame, and the bottom of the mesh groove is an inclined surface that is higher on the inside and lower on the outside, when pressing down the rubber strip and the mesh, the pulling force of the mesh outward is greater, and the mesh can be tightened more, further improving the flatness of the window screen mesh. Description of the Drawings
[0024] Figure 1 is a schematic structural view of the metal mesh window screen pressing machine of the present utility model;
[0025] Figure 2 is an end view of the metal mesh window screen pressing machine;
[0026] Figure 3 is a schematic structural view of the first pressing wheel;
[0027] Figure 4 is a sectional view of the first pressing wheel;
[0028] Figure 5 is a schematic structural view of the second pressing wheel;
[0029] Figure 6 is the sectional view of the second pressing wheel;
[0030] Figure 7 is the structural schematic diagram when the first pressing wheel presses the groove of the wire mesh sheet;
[0031] Figure 8 is the structural schematic diagram after the first pressing wheel initially presses the rubber strip;
[0032] Figure 9 is the structural schematic diagram after the second pressing wheel presses the rubber strip again;
[0033] Figure 10 is the structural schematic diagram of the wire mesh window screen wire pressing machine with the third pressing wheel;
[0034] Figure 11 is the structural schematic diagram of the third pressing wheel;
[0035] Figure 12 is the sectional view of the third pressing wheel;
[0036] Figure 13 is the structural schematic diagram when the first pressing wheel presses the groove of the wire mesh sheet. Specific embodiments
[0037] The following further elaborates in detail on the structure and usage principle of the wire mesh window screen wire pressing machine of the present utility model in conjunction with the attached drawings and specific embodiments.
[0038] Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9As shown in the figure, it is a schematic structural diagram of the wire mesh window screen pressing machine of the present utility model. The wire mesh window screen pressing machine of the present utility model includes a frame body 1 and a workbench 2 located on the frame body 1. Above the workbench 2, there is a downward pressing frame body 4 with a cross beam 3. On the cross beam 3, there is a downward pressing cylinder 5. Below the downward pressing top rod 6 of the downward pressing cylinder 5, there is a lower pressing plate 7. On the upper surface of the workbench 2, there is a limiting strip 8. On the workbench 2 on one side of the limiting strip 8, there is a horizontal tightening cylinder 10 of a horizontal top rod 9. On the cross beam 3, there is a pressing wheel frame track 11. On the pressing wheel frame track 11, there is a first pressing wheel frame 12 and a second pressing wheel frame 13 that can move along the pressing wheel frame track 11. On the first pressing wheel frame 12, there is a first pressing wheel seat 14 that can be vertically lifted and lowered. Below the first pressing wheel seat 14, there is a first pressing wheel 15. Below the second pressing wheel frame 13, there is a second pressing wheel seat 16 that can be vertically lifted and lowered. Below the second pressing wheel seat 16, there is a second pressing wheel 17; the first pressing wheel 15 is a pulley with a wheel groove 18. The periphery of the second pressing wheel 17 is a cylindrical surface; on the side of the first pressing wheel 15, there is a first limiting disc 19, and on the side of the second pressing wheel 17, there is a second limiting disc 20.
[0039] Retract the downward pressing top rod 6 of the downward pressing cylinder 5, place the window frame on the workbench 2, and place the side frame of the window frame where the sealing strip is located between the limiting strip 8 and the horizontal top rod 9 of the horizontal tightening cylinder 10, and then fix the side frame of the window frame between the limiting strip 8 and the horizontal top rod 9 through the horizontal top rod 9. Lay the mesh 24 above the window frame, press down the downward pressing top rod 6 of the downward pressing cylinder 5, and the lower pressing plate 7 presses on the mesh and fixes the mesh; use scissors to cut off the corners of the mesh at both ends of the fixed side frame, and the cutting angle is 45 degrees with the side frame, and the edge of the mesh is flush with the inner corner vertex of the window frame. As Figure 7 As shown in the figure, press down the first pressing wheel seat 14 so that the first limiting disc 19 presses on the upper edge of the side frame slot 21, and push the first pressing wheel frame 12 forward along the pressing wheel frame track 11. The first pressing wheel 15 will bend the mesh corresponding to the side frame slot, and the mesh forms a mesh groove 22 at the side frame slot 21. Retract the first pressing wheel frame 12 to the end of the fixed side frame, put the end of the sealing strip 23 into the end of the mesh groove 22, and press down the first pressing wheel seat 14 so that the first pressing wheel 15 presses on the end of the sealing strip. As Figure 8As shown, the wheel groove 18 of the first pressing wheel 15 is exactly stuck above the rubber strip 23, and the first limiting disc 19 presses on the upper edge of the frame groove 21, straightening the rubber strip along the mesh groove 22 of the mesh. Push the first pressing wheel frame forward along the track of the pressing wheel frame. Under the action of the first pressing wheel 15 on the rubber strip 23 and the mesh 24 above the frame groove, the axis of the rubber strip 23 is lower than the upper edge of the frame groove. The lower half of the rubber strip 23 is located in the mesh groove, and the upper part of the rubber strip 23 is stuck by the wheel groove 18 of the first pressing wheel 15, so that the rubber strip 23 will not roll during the gradual pressing process; Rotate the window frame to initially press the mesh and rubber strip in other frames. Remove the first pressing wheel frame 12, move the second pressing wheel frame 13 above the fixed frame, so that the second pressing wheel 17 presses on the rubber strip, as Figure 9 shown. The second limiting disc 20 presses on the upper edge of the frame groove 21. Push the second pressing wheel frame 13 forward along the track 11 of the pressing wheel frame. Under the action of the second pressing wheel 17 on the rubber strip and the mesh groove 22 in the frame groove 21, the rubber strip and the mesh are further pressed into the frame groove 21; Finally, cut off the mesh outside the frame groove 21.
[0040] Advantage (1): First, use the first pressing wheel 15 to bend the mesh 24 corresponding to the frame groove 21, and a mesh groove 22 is formed at the frame groove 21 of the mesh; The first pressing wheel 15 directly presses the mesh into the frame groove. When the first pressing wheel advances, the lower end of the first pressing wheel 15 inserts into the frame groove 21, ensuring that the mesh groove 22 does not bend and the window screen mesh is flatter;
[0041] Advantage (2): Put the end of the rubber strip 23 into the end of the mesh groove, press down the first pressing wheel seat 14, so that the first pressing wheel 15 presses on the end of the rubber strip 23. The wheel groove 18 of the first pressing wheel 15 is exactly stuck above the rubber strip 23, and the first limiting disc 19 presses on the upper edge of the frame groove 21, straightening the rubber strip 23 along the mesh groove 22. Push the first pressing wheel frame 12 forward along the track 11 of the pressing wheel frame. When initially pressing the rubber strip 23 and the mesh 24, the rubber strip will not roll and is easily pressed into the frame groove 21. Moreover, when the rubber strip and the mesh are pressed down, the mesh near the inner side of the window frame also moves downward to the frame groove, and the mesh serving as the window screen is tightened and flattened;
[0042] Advantage (3): The first pressing wheel 15 is a pulley with a wheel groove 18. When initially pressing the rubber strip and the mesh, the rubber strip 23 is stuck in the wheel groove 18 of the first pressing wheel 15. During the pressing process, the rubber strip is not easy to roll. The periphery of the second pressing wheel 17 is a cylindrical surface, and the pressing force is greater. The rubber strip and the mesh are well pressed into the frame groove, preventing the mesh and the rubber strip from coming out of the frame groove;
[0043] Advantage (4): First, initially press the rubber strip 23 and the mesh 24, and initially press the rubber strips and meshes of the four frames into the frame grooves. Then press the rubber strip and the mesh again. In this way, the window screen will not be distorted, is flatter, and has stronger impact resistance;
[0044] Advantage (5):
[0045] Use scissors to cut off the corners of the mesh along a line at a 45-degree angle to the frame. The mesh is flush with the inner corner vertex of the window frame. The first pressing wheel 15 pressing the mesh groove 22 is not affected, and the first pressing wheel 15 and the second pressing wheel 17 pressing down the mesh are not affected either. The rubber strip 23 and the mesh 24 are pressed more firmly at the four corners of the window frame, avoiding the mesh from coming out and also avoiding the holes in the mesh at the corners of the window frame;
[0046] Advantage (6):
[0047] Above the workbench 2, there is a downward pressing frame body 4 with a cross beam 3. On the cross beam 3, there is a downward pressing air cylinder 5. Below the downward pressing top rod 6 of the downward pressing air cylinder 5, there is a downward pressing plate 7. On the upper surface of the workbench 2, there is a limiting strip 8. When pressing the mesh into the frame groove 21, the other side of the mesh 24 is pressed by the downward pressing plate 7, avoiding the mesh from shifting during the downward pressing of the rubber strip, resulting in the mesh being tilted or distorted.
[0048] The specifications of the first pressing wheel 15, the first limiting disc 19, the second pressing wheel 17, the second limiting disc 20, the frame groove 21, and the rubber strip 23 satisfy the following formulas:
[0049] (1). R1 - r1 ≤ h - (d + h1), where R1 is the radius of the first pressing wheel 15; r1 is the radius of the first limiting disc 19; h is the depth of the frame groove 21; d is the diameter of the rubber strip 23; h1 is the depth of the wheel groove 18 of the first pressing wheel;
[0050] (2). R2 - r2 ≥ h - d, where R2 is the radius of the second pressing wheel 17; r2 is the radius of the second limiting disc 20; h is the depth of the frame groove 21; d is the diameter of the rubber strip 23. When bending the mesh, the bending depth of the mesh is relatively shallow, only ensuring that the rubber strip can be clamped in. When initially pressing the rubber strip, there is space for the mesh 24 and the rubber strip 23 to move downward, and the mesh is further tightened. At this time, there is a certain distance between the bottom of the mesh and the bottom of the frame groove. When pressing the rubber strip and the mesh again, the mesh is further tightened, further improving the flatness of the mesh surface.
[0051] On the first pressing wheel frame 12, there is a first pressing wheel air cylinder 25. The first pressing wheel seat 14 is fixed to the first pressing wheel top rod 26 of the first pressing wheel air cylinder 25. On the second pressing wheel frame 13, there is a second pressing wheel air cylinder 27. The second pressing wheel seat 16 is fixed to the second pressing wheel top rod 28 of the second pressing wheel air cylinder 27. The first pressing wheel 15 and the second pressing wheel 17 are respectively pressed downward by the first pressing wheel air cylinder 25 and the second pressing wheel air cylinder 27, which is more convenient to use.
[0052] Such as Figure 10 、 Figure 11 、Figure 12 and Figure 13 As shown in Figure 13 , a third press wheel frame 29 that can move along the press wheel frame track 11 is provided on the press wheel frame track 11 in front of the first press wheel frame 12. A third press wheel seat 30 that can be vertically lifted and lowered is provided on the third press wheel frame 29. A third press wheel 31 is provided below the third press wheel seat 30. A third limit disc 32 is provided on the side of the third press wheel 31. The mesh groove 22 is folded out on the mesh by the third press wheel 31, which is more convenient to use.
[0053] As Figure 11 , Figure 12 and Figure 13 shown, the third press wheel 31 is frustum-shaped with a slightly larger diameter near the outer side of the frame. The bottom of the mesh groove is an inclined surface that is higher on the inside and lower on the outside. When pressing the pressing rubber strip and the mesh, the pulling force of the mesh outwards is greater, and the mesh can be stretched tighter, further improving the flatness of the window screen mesh.
[0054] The protection scope of the present utility model is not limited to the above embodiments. As long as the structure is the same as or similar to the structure of the metal mesh window screen pressing machine of the present utility model, it falls within the protection scope of the present utility model.
Claims
1. A metal mesh window screen pressing machine, comprising a frame and a workbench on the frame, a pressing frame with a crossbeam is arranged above the workbench, a pressing cylinder is arranged on the crossbeam, a pressing plate is arranged below the pressing push rod of the pressing cylinder, a limit strip is arranged on the upper surface of the workbench, and a horizontal pressing cylinder with a horizontal push rod is arranged on the workbench on one side of the limit strip, characterized in that: A pressure wheel frame track is arranged on the cross beam, a first pressure wheel frame and a second pressure wheel frame which can move along the pressure wheel frame track are arranged on the pressure wheel frame track, a first pressure wheel seat which can be vertically raised and lowered is arranged on the first pressure wheel frame, a first pressure wheel is arranged below the first pressure wheel seat, a second pressure wheel seat which can be vertically raised and lowered is arranged below the second pressure wheel frame, and a second pressure wheel is arranged below the second pressure wheel seat; the first pressure wheel is a pulley; the periphery of the second pressure wheel is a cylindrical surface; a first limiting plate is arranged on the side surface of the first pressure wheel, and a second limiting plate is arranged on the side surface of the second pressure wheel.
2. The metal mesh window screen pressing machine according to claim 1, characterized in that: The specifications of the first pressing wheel, the first limiting plate, the second pressing wheel and the second limiting plate, the frame slot and the rubber strip satisfy the following formula: R1-r1≦h-(d+h1), where R1 is the radius of the first pressing wheel; r1 is the radius of the first limiting plate; h is the depth of the frame slot; d is the diameter of the rubber strip; h1 is the depth of the wheel groove of the first pressing wheel; R2-r2≧hd, wherein R2 is the radius of the second pressure wheel; r2 is the radius of the second limiting plate; h is the depth of the frame slot; and d is the diameter of the rubber strip.
3. The metal mesh window screen pressing machine according to claim 1, characterized in that: A first pressure wheel cylinder is arranged on the first pressure wheel frame, and the first pressure wheel seat is fixed to the first pressure wheel push rod of the first pressure wheel cylinder. A second pressure wheel cylinder is arranged on the second pressure wheel frame, and the second pressure wheel seat is fixed to the second pressure wheel push rod of the second pressure wheel cylinder.
4. The metal mesh window screen pressing machine according to claim 1, characterized in that: A third pressing wheel frame that can move along the pressing wheel frame track is arranged on the pressing wheel frame track in front of the first pressing wheel frame, a third pressing wheel seat that can be vertically raised and lowered is arranged on the third pressing wheel frame, a third pressing wheel is arranged below the third pressing wheel seat, and a third limiting plate is arranged on the side of the third pressing wheel.
5. The metal mesh window screen pressing machine according to claim 4, characterized in that: The third pressing wheel is in the shape of a truncated cone with a slightly larger diameter close to the outer side of the frame.