Large-area screen fan screen tensioning device

Abstract

The utility model discloses a large -area screen fan screen tight device, including support seat, the inside installation of support seat has screen tight mechanism, screen tight mechanism is used for fixed mounting screen, and screen tight mechanism includes the pressing plate of hydraulic cylinder piston rod lower extreme connection, and the lower end surface of pressing plate is provided with screen tight frame, and the upper end surface of pressing plate all is provided with guide mechanism, and guide mechanism is used for guiding pressing plate longitudinal movement, places screen window frame inside workbench, and places screen on screen window frame upper end surface, starts hydraulic cylinder and drives pressing plate to press down, thereby drives screen tight frame to press down screen to screen window frame inside, and sealant strip fastening sticks screen, and it is convenient and quick to install screen, when pressing down, will drive support plate to move down, thereby drives cutting knife to cut screen edge, and it is convenient and quick to cut screen, when cutting knife extrusion cutting screen to screen window frame upper end surface, spring will buffer cutting knife, prevent cutting knife to cut screen window frame.

Description

Technical Field

[0001] This utility model relates to the technical field of door and window screen processing equipment, specifically a large-area screen tensioning device. Background Technology

[0002] The tensioning of screens on profiled doors and windows is typically achieved by pressing the screen into grooves on the four sides of the profile using adhesive strips, stretching and tightening it in four directions. Due to the lack of equipment on the market for quickly tensioning door and window screens, mechanized operations are impossible, and manual work using hand-held pressure rollers is generally employed. This method is inefficient and physically demanding, causing significant damage to workers' backs and hands. To achieve rapid mechanized production, reduce worker fatigue, improve efficiency, and ensure that the tensioned screens are aesthetically pleasing and exhibit minimal deformation, it is necessary to provide a device for quickly tensioning door and window screens.

[0003] For example, the device for quickly tightening door and window screens disclosed in the authorization announcement number CN106320959A includes a worktable for fixing the door and window profile frame and a pressure roller mechanism for pressing the adhesive strip into the groove of the door and window profile frame. The pressure roller mechanism is connected to the end of the rocker arm drive mechanism and is located above the worktable, so that it performs the pressing operation of the adhesive strip around the door and window profile frame under the drive of the rocker arm drive mechanism. An auxiliary guide mechanism is also used to ensure the orientation of the pressure roller mechanism during the pressing operation.

[0004] This device for quickly tightening door and window screens uses a combination of a pressure roller mechanism, a rocker arm drive mechanism, and an auxiliary guide mechanism to achieve mechanized and rapid screen tightening, reducing the labor intensity of workers, improving work efficiency, and ensuring the aesthetic appearance of the tightened screen.

[0005] As can be seen from the solutions disclosed in the existing patent documents, such a structure requires manual operation of the pressure roller mechanism by holding the handle to gradually press the mesh into the interior of the door and window profile frame along the rubber strip. Furthermore, it requires manual use of a utility knife to cut off the excess part of the mesh edge. The amount of manual labor is relatively large. Therefore, it is necessary to improve the existing technology. Utility Model Content

[0006] The purpose of this invention is to provide a large-area gauze fan mesh tensioning device to solve the problems existing in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a large-area gauze fan mesh tensioning device, including a support base, a mesh tensioning mechanism installed inside the support base, the mesh tensioning mechanism being used to fix and install the mesh, the mesh tensioning mechanism including a pressure plate connected to the lower end of a hydraulic cylinder piston rod, and a mesh tensioning frame provided on the lower end surface of the pressure plate;

[0008] The upper end face of each pressure plate is provided with a guide mechanism. The guide mechanism is used to guide the longitudinal movement of the pressure plate. The guide mechanism includes a guide rod provided on the upper end face of each pressure plate, and a guide sleeve is slidably sleeved on the outer side of the guide rod.

[0009] Each pressure plate is equipped with a mesh cutting mechanism on its upper surface. The mesh cutting mechanism is used to cut the mesh. The mesh cutting mechanism includes a support plate provided on the edge of the upper surface of the pressure plate. A movable rod is slidably sleeved inside the support plate. A limit block is connected to the upper end of the movable rod. A cutting blade is connected to the lower end of the movable rod. A spring is slidably sleeved on the outer side of the movable rod. A support mechanism is provided on the lower side of one side of the pressure plate. The support mechanism is used to support the profile frame of the mesh.

[0010] Preferably, the support mechanism includes a support frame disposed at the lower end of one side of the pressure plate, a workbench connected to the lower end of the support frame, a screen frame being fitted inside the workbench, a sealing strip being disposed inside the screen frame, and the lower end of the cutting blade being aligned with the screen frame.

[0011] Preferably, the support base is provided with a guide sleeve inside, and the lower end of the mesh tensioning frame is aligned with a sealing strip.

[0012] Preferably, the upper end face of the support plate is in close contact with the limiting block, and a cutting blade is provided on the outer edge of the pressure plate.

[0013] Preferably, the upper end of the spring is connected to a support plate, and the lower end of the spring is connected to a cutting blade.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This large-area screen mesh tensioning device places the screen frame inside the workbench and the mesh on the upper surface of the screen frame. The hydraulic cylinder is activated to drive the pressure plate to press down, thereby driving the mesh tensioning frame to press the mesh into the screen frame. The sealing strip firmly sticks the mesh, making it easy and quick to install the mesh.

[0016] When the pressure plate is pressed down, it will cause the support plate to move down, thereby driving the cutting blade to cut the edge of the screen, making it easy to cut the screen quickly. When the cutting blade squeezes the screen to the upper surface of the screen frame, the spring will buffer the cutting blade to prevent the cutting blade from cutting the screen frame. Attached Figure Description

[0017] Figure 1 This is a perspective view of the overall structure of this utility model;

[0018] Figure 2 This is an enlarged perspective view of the pressure plate of this utility model;

[0019] Figure 3This is an enlarged perspective view of the mesh tensioning frame of this utility model;

[0020] Figure 4 This is an enlarged perspective view of point A of this utility model.

[0021] In the diagram: 1 Support base, 11 Hydraulic cylinder, 12 Pressure plate, 13 Mesh tensioning frame, 14 Guide rod, 15 Guide sleeve, 2 Support plate, 21 Movable rod, 22 Limiting block, 23 Cutting blade, 24 Spring, 3 Support frame, 31 Workbench, 32 Mesh frame, 33 Sealing strip. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 The large-area gauze fan tensioning device shown in the diagram includes a support base 1. A gauze tensioning mechanism is installed inside the support base 1 to fix the gauze. The gauze tensioning mechanism includes a pressure plate 12 connected to the lower end of the piston rod of a hydraulic cylinder 11. A gauze tensioning frame 13 is provided on the lower end face of the pressure plate 12. The hydraulic cylinder 11 is a telescopic hydraulic cylinder with two or more piston stages. In the telescopic hydraulic cylinder, the pistons extend in a sequence from large to small, while the retraction sequence under no-load is generally from small to large. The telescopic cylinder can achieve a longer stroke and a shorter retraction length, resulting in a more compact structure. There are multiple pistons that move in one stroke; the output speed and output force of each piston change with each successive stroke.

[0024] The upper end face of the pressure plate 12 is provided with a guide mechanism. The guide mechanism is used to guide the longitudinal movement of the pressure plate 12. The guide mechanism includes a guide rod 14 provided on the upper end face of the pressure plate 12. A guide sleeve 15 is slidably sleeved on the outer side of the guide rod 14.

[0025] The upper surface of the pressure plate 12 is provided with a mesh cutting mechanism. The mesh cutting mechanism is used to cut the mesh. The mesh cutting mechanism includes a support plate 2 provided on the edge of the upper surface of the pressure plate 12. A movable rod 21 is slidably sleeved inside the support plate 2. A limit block 22 is connected to the upper end of the movable rod 21. A cutting blade 23 is connected to the lower end of the movable rod 21. A spring 24 is slidably sleeved on the outer side of the movable rod 21. A support mechanism is provided on the lower end of one side of the pressure plate 12. The support mechanism is used to support the profile frame of the mesh.

[0026] Please see Figure 1-3The support mechanism includes a support frame 3 set at the lower end of one side of the pressure plate 12. The lower end of the support frame 3 is connected to a workbench 31. The workbench 31 has a screen frame 32 inside. The screen frame 32 has a sealing strip 33 inside. The lower end of the cutting blade 23 is aligned with the screen frame 32.

[0027] With this setup, the screen frame 32 is placed inside the workbench 31, and the screen mesh is placed on the upper surface of the screen frame 32. The hydraulic cylinder 11 is activated to drive the pressure plate 12 to press down, thereby driving the screen mesh to tighten the frame 13 and press the screen mesh into the screen frame 32. The sealing strip 33 firmly adheres to the screen mesh, making it easy and quick to install the screen mesh.

[0028] Please see Figure 1-3 The support base 1 is provided with a guide sleeve 15, and the lower end of the mesh tensioning frame 13 is aligned with a sealing strip 33.

[0029] With this setup, the guide rod 14 and guide sleeve 15 are designed to guide the longitudinal movement of the pressure plate 12, preventing the mesh tension frame 13 from shifting to the side and causing mesh installation errors.

[0030] Please see Figure 1 , Figure 2 and Figure 4 The upper end face of the support plate 2 is in close contact with the limiting block 22, and the outer edge of the pressure plate 12 is provided with a cutting blade 23;

[0031] With this setup, when the pressure plate 12 is pressed down, it will cause the support plate 2 to move down, thereby causing the cutting blade 23 to cut the edge of the mesh, making it easy to cut the mesh quickly. The design of the limiting block 22 can limit the movement range of the cutting blade 23 and prevent the movable rod 21 from sliding off the support plate 2.

[0032] Please see Figure 1 , Figure 2 and Figure 4 The upper end of the spring 24 is connected to the support plate 2, and the lower end of the spring 24 is connected to the cutting blade 23.

[0033] With this setup, when the cutting blade 23 presses against the upper surface of the screen frame 32, the spring 24 will buffer the cutting blade 23 to prevent it from cutting the screen frame 32. The movable rod 21 is designed to guide the cutting blade 23 to move, preventing lateral deviation from causing screen cutting errors.

[0034] The working principle of this embodiment is as follows: When using this large-area screen window tensioning device, the screen window frame 32 is placed inside the workbench 31, and the screen is placed on the upper surface of the screen window frame 32. The hydraulic cylinder 11 is activated to drive the pressure plate 12 to press down, thereby driving the screen tensioning frame 13 to press the screen into the screen window frame 32. The sealing strip 33 firmly sticks the screen, making it convenient and quick to install the screen.

[0035] It is worth noting that the design of the guide rod 14 and the guide sleeve 15 can guide the longitudinal movement of the pressure plate 12, preventing the mesh tension frame 13 from deviating to the side and causing mesh installation errors.

[0036] When the pressure plate 12 is pressed down, it will drive the support plate 2 to move down, thereby driving the cutting blade 23 to cut the edge of the screen, making it convenient to cut the screen quickly. When the cutting blade 23 squeezes the screen to the upper surface of the screen frame 32, the spring 24 will buffer the cutting blade 23 to prevent the cutting blade 23 from cutting the screen frame 32.

[0037] It is worth noting that the design of the movable rod 21 can guide the movement of the cutting blade 23 to prevent lateral deviation from causing cutting errors in the mesh, and the design of the limiting block 22 can limit the movement range of the cutting blade 23 to prevent the movable rod 21 from detaching from the sliding connection of the support plate 2.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for tensioning a large area screen of a screen door, characterized in that: Includes a support base (1), inside which a mesh tensioning mechanism is installed. The mesh tensioning mechanism is used to fix and install the mesh. The mesh tensioning mechanism includes a pressure plate (12) connected to the lower end of the piston rod of a hydraulic cylinder (11). A mesh tensioning frame (13) is provided on the lower end face of the pressure plate (12). The upper end face of each pressure plate (12) is provided with a guide mechanism. The guide mechanism is used to guide the longitudinal movement of the pressure plate (12). The guide mechanism includes a guide rod (14) provided on the upper end face of each pressure plate (12). A guide sleeve (15) is slidably sleeved on the outer side of the guide rod (14). The upper surface of the pressure plate (12) is provided with a mesh cutting mechanism. The mesh cutting mechanism is used to cut the mesh. The mesh cutting mechanism includes a support plate (2) provided on the edge of the upper surface of the pressure plate (12). A movable rod (21) is slidably sleeved inside the support plate (2). A limit block (22) is connected to the upper end of the movable rod (21). A cutting blade (23) is connected to the lower end of the movable rod (21). A spring (24) is slidably sleeved on the outer side of the movable rod (21). A support mechanism is provided on the lower side of one side of the pressure plate (12). The support mechanism is used to support the profile frame of the mesh.

2. A large area screen fan screen tensioning device according to claim 1, characterized in that: The support mechanism includes a support frame (3) provided at the lower end of one side of the pressure plate (12). The lower end of the support frame (3) is connected to a workbench (31). A screen frame (32) is fitted inside the workbench (31). A sealing strip (33) is provided inside the screen frame (32). The lower end of the cutting blade (23) is aligned with the screen frame (32).

3. The large-area gauze fan mesh tensioning device according to claim 1, characterized in that: The support base (1) is provided with a guide sleeve (15) inside, and the lower end of the mesh tensioning frame (13) is aligned with a sealing strip (33).

4. The large-area gauze fan mesh tensioning device according to claim 1, characterized in that: The upper end face of the support plate (2) is in close contact with the limiting block (22), and the outer edge of the pressure plate (12) is provided with a cutting blade (23).

5. The large-area gauze fan mesh tensioning device according to claim 1, characterized in that: The upper end of the spring (24) is connected to the support plate (2), and the lower end of the spring (24) is connected to the cutting blade (23).

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