Screen stretching equipment

Abstract

The invention discloses a mesh stretching device. The mesh stretching device comprises a base; the first bearing assembly is connected to the base and is configured to be capable of moving on the base in the first direction; the second bearing assembly is connected to the base and is configured to be capable of moving on the base in the first direction; the first chuck assembly is connected to the first bearing assembly and comprises a first clamping piece, a second clamping piece and a third clamping piece; and the second chuck assembly is connected to the first bearing assembly and comprises a fourth clamping piece, a fifth clamping piece and a sixth clamping piece. According to the mesh stretching equipment, the surface of mesh cloth can be smooth, and the tension is uniform.

Description

Technical Field

[0001] The present application relates to the technical field of screen printing, and in particular to a screen stretching device. Background Art

[0002] The screen stretching equipment is an auxiliary equipment for screen printing. It stretches the screen on the screen frame with a certain tension. Screen stretching is the primary process to achieve plate making. The quality of screen stretching is related to the quality of plate making and printing.

[0003] The current mesh stretching equipment usually uses a chuck to clamp the mesh. The length of the chuck is much smaller than the width of the mesh, so multiple chucks are needed to clamp one end of the mesh at the same time. The differences between each chuck and the need to tighten the chucks one by one during operation will cause the mesh to be unevenly stressed at the microscopic level. The mesh is often uneven at the edge of the chuck. This is especially obvious when a small tension is applied. This uneven tension will affect the service life of the screen. After the screen has been used a certain number of times, the graphic position is prone to slight deviations, which will cause poor printing in precision printing.

[0004] Therefore, improvements are needed to at least partially solve the above problems. Summary of the invention

[0005] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0006] In order to at least partially solve the above problems, according to a first aspect of the present invention, a mesh stretching device is provided, comprising:

[0007] Base;

[0008] A first bearing assembly, the first bearing assembly is connected to the base and is configured to be movable along a first direction on the base;

[0009] a second bearing assembly connected to the base and configured to be movable on the base along the first direction;

[0010] a first clamping assembly, the first clamping assembly is connected to the first bearing assembly and comprises a first clamping member, a second clamping member and a third clamping member, the first clamping member, the second clamping member and the third clamping member all extend in a second direction perpendicular to the first direction, the second clamping member is configured to be able to move in a direction toward the first clamping member to clamp the mesh between the first clamping member and the second clamping member, and to be able to move in a direction away from the first clamping member to loosen the mesh, and the third clamping member is configured to be able to move in a direction toward the first clamping member to clamp the mesh between the first clamping member and the third clamping member, and to be able to move in a direction away from the first clamping member to loosen the mesh;

[0011] A second clamping assembly, the second clamping assembly is connected to the first supporting assembly and includes a fourth clamping member, a fifth clamping member and a sixth clamping member, the fourth clamping member, the fifth clamping member and the sixth clamping member all extend along the second direction, the fifth clamping member is configured to be able to move in a direction toward the fourth clamping member to clamp the mesh between the fourth clamping member and the fifth clamping member, and to be able to move in a direction away from the fourth clamping member to loosen the mesh, and the sixth clamping member is configured to be able to move in a direction toward the fourth clamping member to clamp the mesh between the fourth clamping member and the sixth clamping member, and to be able to move in a direction away from the fourth clamping member to loosen the mesh.

[0012] Exemplarily, the first clamp assembly further includes a first fixing member, a first connecting member, a second fixing member, and a second connecting member;

[0013] The first fixing member is connected to the first clamping member, the second clamping member is located in a gap between the first fixing member and the first clamping member, the first connecting member is connected to the first fixing member and the second clamping member, and the first connecting member can drive the second clamping member to move;

[0014] The second fixing member is connected to the first clamping member, the third clamping member is located in the gap between the second fixing member and the first clamping member, the second connecting member is connected to the second fixing member and the third clamping member, and the second connecting member can drive the third clamping member to move; and / or,

[0015] The second clamp assembly also includes a third fixing member, a third connecting member, a fourth fixing member and a fourth connecting member;

[0016] The third fixing member is connected to the fourth clamping member, the fifth clamping member is located in the gap between the third fixing member and the fourth clamping member, the third connecting member is connected to the third fixing member and the fifth clamping member, and the third connecting member can drive the fifth clamping member to move;

[0017] The fourth fixing member is connected to the fourth clamping member, the sixth clamping member is located in the gap between the fourth fixing member and the fourth clamping member, the fourth connecting member is connected to the fourth fixing member and the sixth clamping member, and the fourth connecting member can drive the second clamping member to move.

[0018] Exemplarily, the first fixing member and the second fixing member are integrally formed; and / or,

[0019] The third fixing member and the fourth fixing member are integrally formed.

[0020] Exemplarily, the first bearing assembly includes a first bearing portion and a second bearing portion, the first bearing portion is connected to the base and is configured to be able to move along a first direction on the base, the second bearing portion is connected to the first bearing portion and is configured to be able to rotate around an axis extending along a third direction, and the first clamp assembly is connected to the second bearing portion, wherein the third direction is perpendicular to the first direction and the second direction.

[0021] Exemplarily, the first bearing assembly and the second bearing assembly are both connected to the base via a slide groove and a slide rail.

[0022] Exemplarily, the first chuck assembly is rotatably connected to the first bearing assembly, and a rotation axis of the first chuck assembly extends along the second direction;

[0023] The second clamping head assembly is rotatably connected to the second bearing assembly, and a rotation axis of the second clamping head assembly extends along the second direction.

[0024] Exemplarily, the mesh stretching device further includes a first round roller and a second round roller;

[0025] The first round roller is parallel to the first chuck assembly and is located on a side of the first chuck assembly facing the second chuck assembly;

[0026] The second round roller is parallel to the second chuck assembly and is located on a side of the second chuck assembly facing the first chuck assembly;

[0027] The first round roller and the second round roller have the same height on the base, and the first round roller and the second round roller have a higher height on the base than the first chuck assembly and the second chuck assembly.

[0028] Exemplarily, the mesh stretching device also includes a first actuating assembly and a second actuating assembly, wherein the first actuating assembly is connected to the base and the first bearing assembly, and is used to drive the first bearing assembly to move along the first direction on the base, and the second actuating assembly is connected to the base and the second bearing assembly, and is used to drive the second bearing assembly to move along the first direction on the base.

[0029] Exemplarily, the mesh stretching equipment also includes a lifting assembly and a pallet, which are located on the base and between the first load-bearing assembly and the second load-bearing assembly, the lifting assembly is used to drive the pallet to move in a third direction, and the pallet is used to place the mesh frame, wherein the third direction is perpendicular to the first direction and the second direction.

[0030] According to the mesh stretching equipment of the present invention, the mesh can be first clamped and a certain tension can be applied to make the mesh initially flat, and then the initially flattened mesh can be clamped and applied to the target tension. In this way, after the target tension is applied to the mesh, the surface of the mesh can be flat and the tension can be uniform. Therefore, the screen made with the mesh can have good printing accuracy and a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The following drawings of the present application are hereby used as part of the present application for understanding the present application. The drawings show the embodiments of the present application and their descriptions, and are used to explain the device and principle of the present application. In the drawings,

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of a mesh stretching device according to an embodiment of the present application;

[0033] Figure 2 for Figure 1 A partial structural schematic diagram of the first bearing assembly and the first clamping head assembly;

[0034] Figure 3 It is a schematic diagram of the three-dimensional structure from another angle of the mesh stretching device according to an embodiment of the present application.

[0035] Figure 4 for Figure 3 A local enlarged schematic diagram of the middle A;

[0036] Figure 5 for Figure 1 A schematic structural diagram of the first chuck assembly;

[0037] Figure 6 for Figure 5 A cross-sectional schematic diagram of a first chuck assembly in;

[0038] Figure 7-9 It is a cross-sectional schematic diagram of the first clamping head assembly and the second clamping head assembly during the mesh stretching process.

[0039] Fig.10 Schematic diagram of the structure of the mesh.

[0040] Description of reference numerals:

[0041] 10-mesh;

[0042] 100-base, 110-first slide rail, 120-second slide rail, 130-third slide rail, 140-fourth slide rail;

[0043] 200 - first bearing assembly, 210 - first bearing plate, 220 - second bearing plate, 230 - bearing, 240 - first rotating handle, 250 - first round roller;

[0044] 300-first clamping assembly, 310-first clamping member, 320-second clamping member, 330-third clamping member, 340-first fixing member, 350-second fixing member, 360-first connecting member, 370-second connecting member, 380-first rotating shaft, 390-second rotating shaft;

[0045] 400 - second bearing assembly, 410 - third bearing plate, 420 - second rotating handle, 430 - second round roller;

[0046] 500-second clamp assembly, 510-fourth clamping member, 520-fifth clamping member, 530-sixth clamping member, 540-third fixing member, 550-third fixing member, 560-third connecting member, 570-fourth connecting member;

[0047] 600-first actuating assembly, 610-screw, 620-screw nut, 630-third rotating handle;

[0048] 700 - second actuating assembly;

[0049] 800-Pallet. DETAILED DESCRIPTION

[0050] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it is apparent to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present application, some technical features well known in the art are not described.

[0051] It should be understood that the present application can be implemented in different forms and should not be construed as being limited to the embodiments presented herein. On the contrary, providing these embodiments will make the disclosure thorough and complete and fully convey the scope of the present application to those skilled in the art. In the accompanying drawings, the sizes and relative sizes of layers and regions may be exaggerated for clarity. The same reference numerals throughout represent the same elements.

[0052] It should be understood that although the terms first, second, third, etc. can be used to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the teachings of the present application, the first element, component, region, layer or part discussed below can be represented as a second element, component, region, layer or part.

[0053] Spatially relative terms such as "under", "beneath", "below", "under", "above", "above", etc., may be used herein for convenience of description to describe the relationship of one element or feature to other elements or features shown in the figures. It should be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation shown in the figures.

[0054] The purpose of the terms used herein is only to describe specific embodiments and is not intended to be limiting of the present application. When used herein, the singular forms "one", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "consisting of" and / or "comprising", when used in this specification, determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0055] Embodiments of the invention are described herein with reference to cross-sectional views as schematic diagrams of ideal embodiments (and intermediate structures) of the present application. Thus, variations in the shapes shown due to, for example, manufacturing techniques and / or tolerances can be expected. Therefore, embodiments of the present application should not be limited to the specific shapes shown herein, but include shape deviations due to, for example, manufacturing. Therefore, what is shown in the figures is schematic in nature, and their shapes are not intended to display the actual shape of the device and are not intended to limit the scope of the present application.

[0056] See attached Figure 1-6The net stretching device according to an embodiment of the present application is exemplarily described. The net stretching device includes a base 100, a first bearing assembly 200, a first clamping assembly 300, a second bearing assembly 400 and a second clamping assembly 500.

[0057] In an embodiment of the present application, the base 100 includes a rectangular parallelepiped frame structure, four support legs located below the frame structure, and a first support plate and a second support plate located at the front and rear sides above the frame structure. The four support legs are rotatably connected to the frame structure, which are used to support the frame structure and to adjust the distance from the frame structure to the ground, so that the first support plate and the second support plate above the frame structure can be parallel to the ground by adjusting the support legs. The two support plates are fixedly or detachably connected to the frame structure. In some other embodiments, the first support plate and the second support plate may not be provided, but the upper surface of the frame structure may be covered with a whole flat plate. In some other embodiments, the base 100 may also be designed to be table-shaped, including a support plate and four support legs located below the support plate. The specific form of the base 100 can be flexibly set by those skilled in the art as needed.

[0058] The first bearing assembly 200 and the second bearing assembly 400 are located above the base 100 and are movably connected to the base 100. The first bearing assembly 200 can move in the left-right direction (first direction) on the base 100, toward the second bearing assembly 400 and away from the second bearing assembly 400, and the second bearing assembly 400 can move in the direction toward the first bearing assembly 200 and away from the first bearing assembly 200 on the base 100. Specifically, in the embodiment of the present application, a first slide rail 110, a second slide rail 120, a third slide rail 130 and a fourth slide rail 140 extending in the left-right direction are arranged above the base 100, the first slide rail 110 and the second slide rail 120 are located on the left side of the base 100, and the third slide rail 130 and the fourth slide rail 140 are located on the right side of the base 100. The first bearing assembly 200 has a first slide groove and a second slide groove corresponding to the first slide rail 110 and the second slide rail 120, the first slide rail 110 and the second slide rail 120 are respectively located in the first slide groove and the second slide groove, and the first bearing assembly 200 is slidably connected to the base 100 through the slide groove and the slide rail. Correspondingly, the second bearing assembly 400 has a third slide groove and a fourth slide groove corresponding to the third slide rail 130 and the fourth slide rail 140, the third slide rail 130 and the fourth slide rail 140 are respectively located in the third slide groove and the fourth slide groove, and the second bearing assembly 400 is slidably connected to the base 100 through the slide groove and the slide rail.

[0059] The first clamping assembly 300 is connected to the first bearing assembly 200, and moves synchronously with the movement of the first bearing assembly 200. The first clamping assembly 300 is used to clamp the first end of the mesh 10 as a whole. Figure 5 ,6 The first clamping head assembly 300 includes a first clamping member 310, a second clamping member 320 and a third clamping member 330. The first clamping member 310, the second clamping member 320 and the third clamping member 330 all extend in the front-to-back direction (second direction). There is a first gap extending in the front-to-back direction between the first clamping member 310 and the second clamping member 320. There is a second gap extending in the front-to-back direction between the first clamping member 310 and the third clamping member 330. The first gap and the second gap are used for the mesh 10 to pass through. The distance between the first gap and the second gap in the front-to-back direction is greater than the distance between the mesh 10 in the front-to-back direction. The second clamping member 320 is configured to be able to move in the direction toward the first clamping member 310 ( Figure 6 The mesh 10 can be moved in a direction away from the first clamping member 310 ( Figure 6 The third clamping member 330 is configured to be able to move in a direction toward the first clamping member 310 to clamp the mesh 10 and to be able to move in a direction away from the first clamping member 310 to loosen the mesh 10. Among them, the side of the first clamping member 310 facing the second clamping member 320 and the third clamping member 330 is a plane, the side of the second clamping member 320 facing the first clamping member 310 is a plane, and the side of the third clamping member 330 facing the first clamping member 310 is a plane. Flexible cushion layers (such as rubber cushion layers, etc.) can be further arranged on these three planes. The flexible cushion layer is used to flexibly contact with the mesh 10 when clamping the mesh 10, on the one hand, avoiding damage to the mesh 10 caused by rigid contact, and on the other hand, making the mesh 10 evenly stressed.

[0060] See attached Figure 5 , 6In the embodiment of the present application, the first clamp assembly 300 further includes a first fixing member 340, a first connecting member 360, a second fixing member 350 and a second connecting member 370. The first fixing member 340 extends in the front-to-back direction, and its two ends are fixedly or detachably connected to the two ends of the first clamping member 310. The first fixing member 340 is fixed relative to the first clamping member 310 and there is a gap extending in the front-to-back direction between the two. The second clamping member 320 is located in the gap, and the second clamping member 320 is movably connected to the first fixing member 340 through the first connecting member 360 to move in the direction toward the first clamping member 310 and move away from the first clamping member 310. Specifically, the first connecting member 360 can be, for example, a screw, and the first end of the screw is rotatably connected to the second clamping member 320 (for example, connected through a bearing), and a thread groove matching the screw is provided in the first fixing member 340, and the screw is threadedly connected to the first fixing member 340. Thus, as long as the second end of the screw is rotated, the screw will move relative to the first fixing member 340, and drive the second clamping member 320 to move in the direction toward the first clamping member 310 or in the direction away from the first clamping member 310. In the embodiment of the present application, the cross-section of the portion of the first clamping member 310 corresponding to the second clamping member 320 and the third clamping member 330 in the front-to-back direction is semicircular, the cross-section of the second clamping member 320 in the front-to-back direction is rectangular, and the cross-section of the first fixing member 340 in the front-to-back direction is right-angled fan-shaped. The second fixing member 350 extends in the front-to-back direction, and its two ends are fixedly or detachably connected to the two ends of the first clamping member 310. The second fixing member 350 is fixed relative to the first clamping member 310 and there is a gap extending in the front-to-back direction between the two. The third clamping member 330 is located in the gap, and the third clamping member 330 is movably connected to the second fixing member 350 through the second connecting member 370 to move in the direction toward the first clamping member 310 and move away from the first clamping member 310. The specific structures and connection methods of the second fixing member 350, the third clamping member 330 and the second connecting member 370 are substantially the same as those of the first fixing member 340, the second clamping member 320 and the first connecting member 360, and are not described again here. In some embodiments, the first fixing member 340 and the second fixing member 350 are a whole rather than two separate parts, and the first fixing member 340 and the second fixing member 350 can be integrally formed. In some other embodiments, the first clamping assembly 300 may not be provided with the first fixing member 340, the first connecting member 360, the second fixing member 350 and the second connecting member 370, but the two ends of the second clamping member 320 and the two ends of the third clamping member 330 are directly connected to the two ends of the first clamping member 310 through the connecting member so that the second clamping member 320 and the third clamping member 330 can move in the direction toward the first clamping member 310 to clamp the mesh 10 and can move in the direction away from the first clamping member 310 to loosen the mesh 10.

[0061] The second clamping assembly 500 is connected to the second bearing assembly 400, and moves synchronously with the movement of the second bearing assembly 400. The second clamping assembly 500 is used to clamp the second end of the mesh 10 as a whole. The second clamping assembly 500 and the first clamping assembly 300 have the same structure. The second clamping assembly 500 includes a fourth clamping member 510, a fifth clamping member 520 and a sixth clamping member 530. There is a third gap extending in the front-to-back direction between the fourth clamping member 510 and the fifth clamping member 520, and there is a fourth gap extending in the front-to-back direction between the fourth clamping member 510 and the sixth clamping member 530. The third gap and the fourth gap are used for the mesh 10 to pass through, and the distance between the third gap and the fourth gap in the front-to-back direction is greater than the distance between the mesh 10 in the front-to-back direction. The fifth clamping member 520 is configured to be able to move in a direction toward the fourth clamping member 510 to clamp the mesh 10 and to move in a direction away from the fourth clamping member 510 to loosen the mesh 10, and the sixth clamping member 530 is configured to be able to move in a direction toward the fourth clamping member 510 to clamp the mesh 10 and to move in a direction away from the fourth clamping member 510 to loosen the mesh 10. The second clamp assembly 500 further includes a third fixing member 550, a third connecting member 560, a fourth fixing member, and a fourth connecting member 570. The third fixing member 550 extends in the front-to-back direction, and its two ends are fixedly or detachably connected to the two ends of the fourth clamping member 510. The third fixing member 550 is fixed relative to the fourth clamping member 510 and there is a gap extending in the front-to-back direction between the two. The fifth clamping member 520 is located in the gap, and the fifth clamping member 520 is movably connected to the third fixing member 550 through the third connecting member 560 to move in the direction toward the fourth clamping member 510 and away from the fourth clamping member 510. The specific structure and connection method of the fourth fixing member, the sixth clamping member 530 and the fourth connecting member 570 are basically the same as those of the third fixing member 550, the fifth clamping member 520 and the third connecting member 560, and will not be repeated here.

[0062] In the embodiment of the present application, the mesh 10 located in the first gap (i.e., between the first clamp 310 and the second clamp 320) is closer to the edge of the first end of the mesh 10 than the mesh 10 located in the second gap (i.e., between the first clamp 310 and the third clamp 330). The mesh 10 located in the third gap (i.e., between the fourth clamp 510 and the fifth clamp 520) is closer to the edge of the second end of the mesh 10 than the mesh 10 located in the fourth gap (i.e., between the fourth clamp 510 and the sixth clamp 530). When the mesh stretching device of the present application is stretching the mesh, first, the first bearing assembly 200 and the second bearing assembly 400 are moved so that they are in close positions, and the first end of the mesh 10 is located in the first gap and the second gap and the second end of the mesh 10 is located in the third gap and the fourth gap; then, see the attached figure. Figure 7, move the second clamping member 320 in the direction toward the first clamping member 310 to clamp the mesh 10, and move the fifth clamping member 520 in the direction toward the fourth clamping member 510 to clamp the mesh 10; then, move the first bearing assembly 200 and the second bearing assembly 400 in the direction away from each other, apply a certain tension to the mesh 10, so that the mesh 10 is basically flat; then, see the attached Figure 8 , move the third clamping member 330 in the direction toward the first clamping member 310 to clamp the mesh 10, and move the sixth clamping member 530 in the direction toward the fourth clamping member 510 to clamp the mesh 10; then, see the attached Fig. 9 , move the second clamping member 320 in a direction away from the first clamping member 310 to loosen the mesh 10, move the fifth clamping member 520 in a direction away from the fourth clamping member 510 to loosen the mesh 10. It should be noted that this step can also be omitted; finally, move the first bearing assembly 200 and the second bearing assembly 400 in a direction away from each other to apply the mesh 10 to the target tension. After the mesh 10 is applied to the target tension, the mesh frame and the mesh 10 can be combined by, for example, bonding.

[0063] According to the mesh stretching device of the embodiment of the present application, the mesh 10 can be initially flattened by the first clamp 310, the second clamp 320, the fourth clamp 510 and the fifth clamp 520, and then the mesh 10 is clamped and applied to the target tension by the first clamp 310, the second clamp 320, the fourth clamp 510 and the fifth clamp 520. Since the clamps clamp the two ends of the mesh 10 as a whole, and the mesh 10 is already in a flat state before the first clamp 310, the second clamp 320, the fourth clamp 510 and the fifth clamp 520 clamp the mesh 10, after the target tension is applied, the surface of the mesh 10 is flat and the tension is uniform, so that the screen made by the mesh 10 can have good printing accuracy and a long service life. The screen of the embodiment of the present application is particularly suitable for Fig.10 The mesh cloth 10 shown has interwoven warp and weft threads at both ends and only warp threads in the middle. The mesh cloth 10 is stretched using the mesh stretching equipment of the present application, which can make the tension of the warp threads in the middle of the mesh cloth 10 uniform and maintain uniform spacing after the target tension is applied.

[0064] In the embodiment of the present application, the first bearing assembly 200 includes a first bearing part and a second bearing part, the first bearing part includes a first bearing plate 210 and two connecting blocks located below the first bearing plate 210, the first bearing plate 210 is connected to the first slide rail 110 and the second slide rail 120 on the base 100 through the two connecting blocks, the first ends of the two connecting blocks can be fixedly or detachably connected to the first bearing plate 210, the second ends of the two connecting blocks are respectively provided with a first slide groove and a second slide groove matching the first slide rail 110 and the second slide rail 120, the first slide rail 110 and the second slide rail 120 are respectively located in the first slide groove and the second slide groove. That is, the first bearing part is connected to the base 100 through the slide groove and the slide rail. The second bearing part includes a second bearing plate 220, the second bearing plate 220 is rotatably connected to the first bearing plate 210, and the second bearing assembly 400 can rotate relative to the first bearing assembly 200 around a rotation axis extending in the up-down direction (third direction). Specifically, a bearing 230 is fixedly provided on the first bearing plate 210, the center axis of which is in the up-down direction, and the lower part of the second bearing plate 220 is connected to the first bearing plate 210 through the bearing 230. The second bearing assembly 400 also includes two connecting blocks located above the second bearing plate 220, which can be fixedly or detachably connected to the second bearing plate 220, and the two connecting blocks are respectively located at the two ends of the second bearing plate 220, and the two ends of the first chuck assembly 300 are respectively connected to the two connecting blocks. The second bearing assembly 400 includes a third bearing plate 410 and two connecting blocks located below the third bearing plate 410. The third bearing plate 410 is connected to the third slide rail 130 and the fourth slide rail 140 on the base 100 through the two connecting blocks. The first ends of the two connecting blocks can be fixedly or detachably connected to the third bearing plate 410. The second ends of the two connecting blocks are respectively provided with a third slide groove and a fourth slide groove matching the third slide rail 130 and the fourth slide rail 140. The third slide rail 130 and the fourth slide rail 140 are respectively located in the third slide groove and the fourth slide groove. The third bearing assembly also includes two connecting blocks located above the third bearing plate 410. The two connecting blocks can be fixedly or detachably connected to the third bearing plate 410. The two connecting blocks are respectively located at the two ends of the second bearing plate 220 along the front-back direction. The two ends of the first chuck assembly 300 are respectively connected to the two connecting blocks.Since the second bearing part can rotate relative to the first bearing part around the rotation axis extending in the up-down direction (that is, the first clamp assembly 300 connected to the second bearing part can rotate relative to the first bearing part around the rotation axis extending in the up-down direction), and the second clamp assembly 500 connected to the second bearing assembly 400 cannot rotate relative to the second bearing assembly 400 around the rotation axis extending in the up-down direction, therefore, when the first bearing assembly 200 and the second bearing assembly 400 are moved in a direction away from each other to apply tension to the mesh 10, the tension of the mesh 10 can drive the first clamp assembly 300 and the second bearing part to rotate around the rotation axis extending in the up-down direction, so that the mesh 10 tends to be flat, thereby making the tension more uniform. In the embodiment of the present application, the second bearing assembly 400 also includes a limiting structure arranged on the second bearing plate 220, the limiting structure is used to limit the rotation angle of the second bearing part, and the rotation angle enables the first clamp assembly 300 to rotate within a small angle range (such as ±5°, ±10°, etc.) parallel to the second clamp assembly 500 and close to the second clamp assembly 500. The specific structural form of the limiting structure can be configured by those skilled in the art as needed. In some other embodiments, the second bearing assembly 400 can be replaced by the first bearing assembly 200, or the first bearing assembly 200 can be replaced by the second bearing assembly 400. It should be noted that when the first bearing assembly 200 is replaced by the second bearing assembly 400, the first clamp assembly 300 and the second clamp assembly 500 need to be arranged in parallel.

[0065] In the embodiment of the present application, the first chuck assembly 300 is rotatably connected to the second bearing part, the second chuck assembly 500 is rotatably connected to the second bearing assembly 400, and the second chuck can rotate around a rotation axis extending in the front-to-back direction. The rotation axis of the first chuck assembly 300 is parallel to the extension direction of the first clamping member 310, the second clamping member 320 and the third clamping member 330. When the first chuck assembly 300 is parallel to the second chuck assembly 500, it can rotate along the rotation axis extending in the front-to-back direction. Specifically, the first clamping member 310 is provided with a first rotating shaft 380 and a second rotating shaft 390 at both ends, and the first rotating shaft 380 and the second rotating shaft 390 can be connected to two connecting blocks above the second bearing plate 220 through bearings. Correspondingly, the fourth clamping member 510 is provided with a third rotating shaft and a fourth rotating shaft at both ends, and the third rotating shaft and the fourth rotating shaft can be connected to two connecting blocks above the third bearing plate 410 through bearings. When the mesh is stretched, the flatness and tension of the mesh 10 can be adjusted by rotating the first chuck assembly 300 and the second chuck assembly 500, so as to avoid excessive stress concentration at some positions of the mesh 10 when it contacts the first chuck assembly 300 and the second chuck assembly 500, and improve the uniformity of tension. In the embodiment of the present application, a first rotating handle 240 is provided at one end of the first chuck assembly 300, and a second rotating handle 420 is provided at one end of the second chuck assembly 500. The user can rotate the first rotating handle 240 and the second rotating handle 420 to rotate the first chuck assembly 300 and the second chuck assembly 500 respectively. In some other embodiments, the first chuck assembly 300 can be fixedly connected to the second bearing portion, and the second chuck assembly 500 can be fixedly connected to the second bearing assembly 400.

[0066] In the embodiment of the present application, the mesh stretching device further includes a first round roller 250 and a second round roller 430. The first round roller 250 is parallel to the first chuck assembly 300 and is located on the side of the first chuck assembly 300 facing the second chuck assembly 500. The height of the first round roller 250 on the base 100 (i.e., the height in the vertical direction) is higher than the height of the first chuck assembly 300 on the base 100. The second round roller 430 is parallel to the second chuck assembly 500 and is located on the side of the first chuck assembly 300 facing the second chuck assembly 500. The height of the second round roller 430 on the base 100 (the height in the vertical direction) is higher than the height of the second chuck assembly 500 on the base 100. The heights of the first round roller 250 and the second round roller 430 on the base 100 are equal. It should be noted that the height on the base 100 mentioned here refers to the distance from the top to the base 100. The first round roller 250 and the second round roller 430, which are horizontal and of equal height, are used to support the middle part of the mesh 10, so that the middle part of the mesh 10 is flat. On the one hand, it can avoid the unevenness caused by the deformation of the flexible gasket in the chuck assembly, and on the other hand, it is convenient for the screen frame to be combined with the mesh 10 between the first round roller 250 and the second round roller 430. In the embodiment of the present application, the two ends of the first round roller 250 are connected to the side of the second bearing plate 220 facing the second bearing assembly 400 through two connecting blocks, the first ends of the two connecting blocks are fixedly or detachably connected to the second bearing plate 220, and the two ends of the first round roller 250 are fixedly or rotatably connected to the second ends of the two connecting blocks. The two ends of the second round roller 430 are connected to the side of the third bearing plate 410 facing the first bearing assembly 200 through two connecting blocks, the first ends of the two connecting blocks are fixedly or detachably connected to the third bearing plate 410, and the two ends of the second round roller 430 are fixedly or rotatably connected to the second ends of the two connecting blocks.

[0067] In an embodiment of the present application, the mesh stretching device also includes a first actuating assembly 600 and a second actuating assembly 700. The first actuating assembly 600 is connected to the base 100 and the first supporting assembly 200, and is used to drive the first supporting assembly 200 to move along the left and right direction on the base 100. The second actuating assembly 700 is connected to the base 100 and the second supporting assembly 400, and is used to drive the second supporting assembly 400 to move along the left and right direction on the base 100. In the embodiment of the present application, the first actuating assembly 600 includes two fixed blocks, a lead screw 610, a lead screw nut 620 and a third rotating handle 630. The two fixed blocks are fixedly or detachably connected to the base 100. The lead screw 610 extends in the left-right direction (parallel to the first slide rail 110) and the two ends of the lead screw 610 are rotatably connected to the two fixed blocks through bearings. The lead screw nut 620 is sleeved on the lead screw 610 and fixedly or detachably connected to the first actuating assembly 600. The third rotating handle 630 is fixedly or detachably connected to one end of the lead screw 610. Thus, the user can drive the lead screw 610 to rotate by rotating the third rotating handle 630. When the lead screw 610 rotates, the lead screw nut 620 moves in the left-right direction on the lead screw 610, thereby driving the first bearing assembly 200 to move in the left-right direction on the base 100. In some embodiments, the third rotating handle 630 can be replaced by a motor, which drives the lead screw 610 to rotate, thereby driving the first bearing assembly 200 to move left and right on the base 100. The second actuating assembly 700 has the same structure as the first actuating assembly 600 and will not be described again.

[0068] In the embodiment of the present application, the net stretching device further includes a lifting assembly and a support plate 800. The lifting assembly and the support plate 800 are located on the base 100 and between the first bearing assembly 200 and the second bearing assembly 400. The lifting assembly is used to drive the support plate 800 to move in the up and down direction. The upper surface of the support plate 800 is used to place the net frame. When the net is stretched, the support plate 800 is in a lower position, and the net frame on the support plate 800 does not contact the mesh 10. After the mesh 10 is applied to the target tension, the support plate 800 can be lifted by the lifting assembly so that the support plate 800 contacts the mesh 10, and then the mesh 10 can be combined with the net frame by means such as bonding. The lifting assembly can include a cylinder, a motor or other actuators that can drive the support plate 800 to move in the up and down direction.

[0069] Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above example embodiments are merely exemplary and are not intended to limit the scope of the present application to this. Those of ordinary skill in the art may make various changes and modifications therein without departing from the scope and spirit of the present application. All these changes and modifications are intended to be included within the scope of the present application as required by the appended claims.

[0070] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0071] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed.

[0072] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0073] Similarly, it should be understood that in order to streamline the present application and help understand one or more of the various inventive aspects, in the description of the exemplary embodiments of the present application, the various features of the present application are sometimes grouped together into a single embodiment, figure, or description thereof. However, the method of the present application should not be interpreted as reflecting the following intention: the claimed application requires more features than the features clearly stated in each claim. More specifically, as reflected in the corresponding claims, the inventive point is that the corresponding technical problem can be solved with features less than all the features of a single disclosed embodiment. Therefore, the claims following the specific embodiment are hereby explicitly incorporated into the specific embodiment, wherein each claim itself serves as a separate embodiment of the present application.

[0074] It will be understood by those skilled in the art that, except for mutually exclusive features, all features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device disclosed in this specification may be combined in any combination. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature that provides the same, equivalent or similar purpose.

[0075] In addition, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0076] It should be noted that the above-mentioned embodiments illustrate rather than limit the invention and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims.

Claims

1. A mesh stretching device, characterized in that: include: Base; A first bearing assembly, the first bearing assembly is connected to the base and is configured to be movable along a first direction on the base; a second bearing assembly connected to the base and configured to be movable on the base along the first direction; a first clamping assembly, the first clamping assembly is connected to the first bearing assembly and comprises a first clamping member, a second clamping member and a third clamping member, the first clamping member, the second clamping member and the third clamping member all extend in a second direction perpendicular to the first direction, the second clamping member is configured to be able to move in a direction toward the first clamping member to clamp the mesh between the first clamping member and the second clamping member, and to be able to move in a direction away from the first clamping member to loosen the mesh, and the third clamping member is configured to be able to move in a direction toward the first clamping member to clamp the mesh between the first clamping member and the third clamping member, and to be able to move in a direction away from the first clamping member to loosen the mesh; A second clamping assembly, the second clamping assembly is connected to the first supporting assembly and includes a fourth clamping member, a fifth clamping member and a sixth clamping member, the fourth clamping member, the fifth clamping member and the sixth clamping member all extend along the second direction, the fifth clamping member is configured to be able to move in a direction toward the fourth clamping member to clamp the mesh between the fourth clamping member and the fifth clamping member, and to be able to move in a direction away from the fourth clamping member to loosen the mesh, and the sixth clamping member is configured to be able to move in a direction toward the fourth clamping member to clamp the mesh between the fourth clamping member and the sixth clamping member, and to be able to move in a direction away from the fourth clamping member to loosen the mesh.

2. The mesh stretching device according to claim 1, characterized in that: The first clamp assembly also includes a first fixing member, a first connecting member, a second fixing member and a second connecting member; The first fixing member is connected to the first clamping member, the second clamping member is located in a gap between the first fixing member and the first clamping member, the first connecting member is connected to the first fixing member and the second clamping member, and the first connecting member can drive the second clamping member to move; The second fixing member is connected to the first clamping member, the third clamping member is located in the gap between the second fixing member and the first clamping member, the second connecting member is connected to the second fixing member and the third clamping member, and the second connecting member can drive the third clamping member to move; and / or, The second clamp assembly also includes a third fixing member, a third connecting member, a fourth fixing member and a fourth connecting member; The third fixing member is connected to the fourth clamping member, the fifth clamping member is located in the gap between the third fixing member and the fourth clamping member, the third connecting member is connected to the third fixing member and the fifth clamping member, and the third connecting member can drive the fifth clamping member to move; The fourth fixing member is connected to the fourth clamping member, the sixth clamping member is located in the gap between the fourth fixing member and the fourth clamping member, the fourth connecting member is connected to the fourth fixing member and the sixth clamping member, and the fourth connecting member can drive the second clamping member to move.

3. The mesh stretching device according to claim 2, characterized in that: The first fixing member and the second fixing member are integrally formed; and / or, The third fixing member and the fourth fixing member are integrally formed.

4. The mesh stretching device according to claim 1, characterized in that: The first bearing assembly includes a first bearing portion and a second bearing portion, the first bearing portion is connected to the base and is configured to be movable along a first direction on the base, the second bearing portion is connected to the first bearing portion and is configured to be rotatable around an axis extending along a third direction, and the first chuck assembly is connected to the second bearing portion, wherein the third direction is perpendicular to the first direction and the second direction.

5. The mesh stretching device according to claim 1, characterized in that: The first bearing assembly and the second bearing assembly are both connected to the base via a slide groove and a slide rail.

6. The mesh stretching device according to claim 1, characterized in that: The first chuck assembly is rotatably connected to the first bearing assembly, and the rotation axis of the first chuck assembly extends along the second direction; The second clamping head assembly is rotatably connected to the second bearing assembly, and a rotation axis of the second clamping head assembly extends along the second direction.

7. The mesh stretching device according to claim 1, characterized in that: The mesh stretching device also includes a first round roller and a second round roller; The first round roller is parallel to the first chuck assembly and is located on a side of the first chuck assembly facing the second chuck assembly; The second round roller is parallel to the second chuck assembly and is located on a side of the second chuck assembly facing the first chuck assembly; The first round roller and the second round roller have the same height on the base, and the first round roller and the second round roller have a higher height on the base than the first chuck assembly and the second chuck assembly.

8. The mesh stretching device according to claim 1, characterized in that: The mesh stretching device also includes a first actuating assembly and a second actuating assembly, wherein the first actuating assembly is connected to the base and the first bearing assembly, and is used to drive the first bearing assembly to move along the first direction on the base, and the second actuating assembly is connected to the base and the second bearing assembly, and is used to drive the second bearing assembly to move along the first direction on the base.

9. The mesh stretching device according to claim 8, characterized in that: The mesh stretching equipment also includes a lifting assembly and a support plate, which are located on the base and between the first load-bearing assembly and the second load-bearing assembly. The lifting assembly is used to drive the support plate to move in a third direction, and the support plate is used to place a mesh frame, wherein the third direction is perpendicular to the first direction and the second direction.

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