Screen frame clamping device
By designing the clamping and positioning components of the mesh frame clamping device, the problem of low repeat positioning accuracy of the mesh frame is solved, and multiple precise positioning and deformation adaptation are achieved, and printing quality and efficiency are improved.
Patent Information
- Application Number
- CN202421860241.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-02
AI Technical Summary
When the mesh frame clamping device clamps the same mesh frame multiple times, the repeated positioning accuracy is not high, which affects the printing quality and accuracy.
A mesh frame clamping device is designed, which includes clamping components and positioning components on the left and right beams. The first and second positioning components realize multiple repeated precise positioning of the mesh frame. The second positioning component can rotate slightly in parallel to the mesh frame to adapt to the deformation of the mesh frame. The third and fourth clamping components realize clamping and release of the mesh frame through the rotation of the lever.
It realizes multiple repeated precise positioning of the mesh frame, and can still accurately clamp after adapting to the deformation of the mesh frame, improving the accuracy and stability of printing, and facilitating the clamping and disassembly of the mesh frame.
Smart Images
Figure CN223072111U_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present application belong to the field of screen printing, and particularly relate to a screen frame clamping device. Background Art
[0002] Screen printing is a printing process that uses a screen as a printing plate base, and the screen frame is a key component of the screen printing plate. The main function of the screen frame is to support the screen, so that the screen remains stable during the printing process, thereby ensuring the quality and accuracy of printing. The screen frame can ensure accurate positioning during printing, facilitate color separation printing, and ensure that the ink layers after printing of each color printing plate are uniform and the effects are the same.
[0003] Since the screen frame can be used for color separation printing and requires repeated positioning, during the printing process, the repeated and accurate positioning of the screen frame is very important. Summary of the Invention
[0004] The embodiments of the present application provide a screen frame clamping device, aiming to solve the problem that the repeated positioning accuracy of the screen frame is not high when the screen frame clamping device clamps the same screen frame multiple times.
[0005] The solution of the embodiments of the present application is as follows:
[0006] A screen frame clamping device includes: a first clamping component and a second clamping component for clamping the left side of the screen frame, which are arranged at the front and rear ends of the left crossbeam; a third clamping component and a fourth clamping component for clamping the right side of the screen frame, which are arranged at the front and rear ends of the right crossbeam. The screen frame clamping device further includes a first positioning component arranged on the left crossbeam and located between the first clamping component and the second clamping component, and a second positioning component arranged on the right crossbeam and located between the third clamping component and the fourth clamping component. The screen frame is positioned and installed on the screen frame clamping device through the first positioning component and the second positioning component.
[0007] In some embodiments, the first positioning component includes a first support component and a first movable component. The first support component is connected to the left crossbeam. The first movable component is movably arranged on the first support component and is close to the screen frame. Two first protrusions are arranged on the first movable component; the second positioning component includes a second support component and a second movable component. The second support component is connected to the right crossbeam. The second movable component is movably arranged on the second support component and is close to the screen frame. Two second protrusions are arranged on the second movable component;
[0008] The first movable component slides on the first support component to insert the two first bumps into two first positioning concave holes provided on the left side of the mesh frame. The second movable component moves on the second support component to insert the two second bumps into two second positioning concave holes provided along the right side of the mesh frame, and the mesh frame is precisely fixed on the mesh frame clamping device.
[0009] In some embodiments, the first support component includes: a first vertical plate connected to the side of the left crossbeam close to the mesh frame, a first horizontal block and a second horizontal block respectively horizontally extending from the upper and lower ends of the outer side of the first vertical plate towards the mesh frame; a first screw vertically passing through the first horizontal block, and a first spring sleeved on the first screw; a second screw vertically passing through the second horizontal block, and a second spring passing through the second screw; a first guide rail provided on the inner side of the first vertical plate where the first horizontal block is located, and a second guide rail parallel to the first guide rail provided on the inner side of the first vertical plate where the second horizontal block is located;
[0010] The first movable component includes: a second vertical plate parallel to the first vertical plate and close to the mesh frame, the upper end surface of the second vertical plate abutting against the lower ends of the first screw and the second screw; on the side of the second vertical plate close to the first vertical plate, a first slider and a second slider respectively adapted to the first guide rail and the second guide rail are provided.
[0011] In some embodiments, the second support component includes an inverted L-shaped plate connected to the side of the right crossbeam close to the mesh frame. At both ends of the upper horizontal end of the inverted L-shaped plate close to the side of the mesh plate, a third horizontal block and a fourth horizontal block are respectively provided. A third screw vertically passes through the third horizontal block, and a third spring is sleeved on the third screw. A fourth screw vertically passes through the fourth horizontal block, and a fourth spring is sleeved on the fourth screw;
[0012] On the vertical part of the inverted L-shaped plate, third guide rails and fourth guide rails parallel to each other are provided at the lower ends of the third horizontal block and the fourth horizontal block respectively. On the lower surface of the horizontal part of the inverted L-shaped plate, a cushion block is provided. A rotating component vertically passes through the inverted L-shaped plate and the cushion block. On the lower surfaces of the horizontal extending parts on both sides of the cushion block, a third slider and a fourth slider are respectively provided;
[0013] A horizontal plate is provided at the lower end of the cushion block on the vertical part of the inverted L-shaped plate. On both sides of the middle of the horizontal plate, a first air cylinder and a second air cylinder are respectively installed. At both ends of the horizontal plate, fifth guide rails and sixth guide rails that are parallel to each other and adapted to the third slider and the fourth slider are respectively provided.
[0014] The second movable assembly includes: a third vertical plate parallel to the vertical part of the inverted L-shaped plate and close to the right side of the screen frame. The upper end surface of the third vertical plate abuts against the lower ends of the third screw rod and the fourth screw rod. On the side of the third vertical plate facing away from the screen frame, a fifth slider and a sixth slider adapted to the third guide rail and the fourth guide rail are provided.
[0015] In some embodiments, the rotating assembly includes a rotating shaft and a bearing sleeved on the rotating shaft. The bearing is fixed on the upper horizontal end of the inverted L-shaped plate, and the rotating shaft penetrates through the bearing and the cushion block.
[0016] In some embodiments, the third guide rail and the fifth guide rail are perpendicular.
[0017] In some embodiments, the structures of the first clamping member and the second clamping member are the same. The first clamping member includes an upper pressing block, a third air cylinder and a first lower support block. One end of the upper pressing block is fixed on the upper end surface of the left cross beam, and the other end extends horizontally towards the screen frame. The first lower support block extends horizontally from the middle lower end of the left cross beam towards the screen frame. The third air cylinder clamps the left side of the screen frame on the left cross beam through the upper pressing block and the first lower support block.
[0018] In some embodiments, the structures of the third clamping member and the fourth clamping member are the same. The third clamping member includes: a fourth air cylinder, a base, a swing rod, a pressing rod and a second lower support block;
[0019] The base is installed on the inner side of the right cross beam close to the screen frame. The fourth air cylinder is installed on the base. The lower end of the swing rod is installed on the output shaft of the fourth air cylinder, and the upper end is for the pressing rod to pass through. The second lower support block extends horizontally from the inner side of the right cross beam towards the screen frame.
[0020] When the fourth air cylinder drives the swing rod to swing, the swing rod drives the pressing rod to rotate, so that the rod head of the pressing rod presses on the upper end surface of the right side of the screen frame, and cooperates with the second lower support block to clamp the right side of the screen frame.
[0021] In some embodiments, the upper end of the first spring abuts against the upper end head of the first screw rod, and the lower end abuts against the first horizontal block. The upper end of the second spring abuts against the upper end head of the second screw rod, and the lower end abuts against the second horizontal block.
[0022] In some embodiments, the upper end of the third spring abuts against the upper end of the third screw rod, and the lower end abuts against the third horizontal block. The upper end of the fourth spring abuts against the upper end head of the fourth screw rod, and the lower end abuts against the fourth horizontal block.
[0023] In some embodiments, the first convex block and the second convex block have the same structure, and the first positioning concave hole and the second positioning concave hole are the same.
[0024] Technical effects of the present application: 1. For this frame clamping device, through the first positioning component arranged on the left cross beam and the second positioning component arranged on the right cross beam, precise positioning and clamping of the frame can be achieved repeatedly. At the same time, since the second positioning component can also make a small rotation parallel to the plane where the frame is located, even if the frame deforms after being used for a long time, it can still be precisely clamped repeatedly; 2. The third clamping component and the fourth clamping component realize the clamping and loosening of the frame by rotating the swing rod, thus facilitating the clamping of the frame. Description of the Drawings
[0025] Figure 1 is the general assembly drawing of the frame clamping device according to the embodiment of the present application;
[0026] Figure 2 is Figure 1 the enlarged view of the first positioning component 70 in
[0027] Figure 3 is Figure 1 the enlarged view of the second positioning component 80 in
[0028] Figure 4 is Figure 1 the enlarged view of the third clamping component 50 in
[0029] Figure 5 is Figure 1 another axonometric view excluding the frame 01 in
[0030] Figure 6 is Figure 5 the enlarged view of the first positioning component 70 in
[0031] Figure 7 is the structural schematic diagram of the frame 01;
[0032] Figure 8 is Figure 7 the enlarged view at A in
[0033] Figure 9 is Figure 5 an enlarged view of the second positioning member 80 in
[0034] Figure 10 is Figure 9 the assembly drawing of the rotating assembly 820 in (excluding the inverted L-shaped plate 801);
[0035] Figure 11 is Figure 1 the front view along the B direction in Detailed implementation manners
[0036] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0037] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application; the terms "first", "second", "third" are only used for description to distinguish, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate object, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.
[0038] Refer to Figure 1 and Figure 2, a frame clamping device disclosed in an embodiment of the present application, includes: a left crossbeam 10 and a right crossbeam 20, a first clamping member 30 and a second clamping member 40 disposed at the front and rear ends of the left crossbeam 10, a third clamping member 50 and a fourth clamping member 60 disposed at the front and rear ends of the right crossbeam 20. The structures of the first clamping member 30 and the second clamping member 40 are completely the same, and the structures of the third clamping member 50 and the fourth clamping member 60 are completely the same. The first clamping member 30, the second clamping member 40, the third clamping member 50, and the fourth clamping member 60 are used to clamp and fix the front and rear ends of the left and right sides of the frame 01. A first positioning member 70 is disposed between the first clamping member 30 and the second clamping member 40 on the left crossbeam 10, and a second positioning member 80 is disposed between the third clamping member 50 and the fourth clamping member 60 on the right crossbeam 20. Through the first positioning member 70 and the second positioning member 80, the frame 01 can be accurately positioned and installed on the left crossbeam 10 and the right crossbeam 20 repeatedly for multiple times, improving the accuracy of image exposure.
[0039] Reference Figure 6 , in some embodiments, the first positioning member 70 includes: a first support assembly 700 and a first movable assembly 710. The first support assembly 700 is connected to the left crossbeam 10, and the first movable assembly 710 can move in the up and down direction perpendicular to the first support assembly 700 on the first support assembly 700. On the first movable assembly 710, two identical first bumps 711 are provided. Reference Figure 3 , in some embodiments, the second positioning member 80 includes: a second support assembly 800 and a second movable assembly 840. The second support assembly 800 is connected to the right crossbeam 20, and the second movable assembly 840 can translate or rotate on the second support assembly 800. On the second movable assembly 840, two identical second bumps 841 are provided. The two first bumps 711 and the two second bumps 841 are completely the same. The two first bumps 711 are used to insert into Figure 7 two first positioning concave holes 012 provided on the left side 010 of the frame 01 in, and the two second bumps 841 are used to insert into two second positioning concave holes 013 provided on the right side 011 of the frame, as shown in Figure 7 and Figure 8 . It should be noted that the structures of the two first positioning concave holes 012 and the two second positioning concave holes 013 are completely the same, and are used to fully cooperate with the two first bumps 711 and the two second bumps 841 to achieve multiple repeated precise positioning of the frame 01 on the Figure 1 frame clamping device 00 in.
[0040] Reference Figure 6, in some embodiments, the first support assembly 700 includes a first vertical plate 701 which abuts against the left crossbeam 10. At the rear end and the front end on the outer side of the first vertical plate 701, a first horizontal block 702 and a second horizontal block 703 are respectively provided. Both the first horizontal block 702 and the second horizontal block 703 horizontally extend towards one side of the mesh frame 01. A first screw rod 704 is vertically penetrated through the first horizontal block 702, and a first spring 705 is sleeved on the first screw rod 704. A second screw rod 706 is vertically penetrated through the second horizontal block 703, and a second spring 707 is sleeved on the second screw rod 706. A first guide rail 708 is provided on the lower side of the first vertical plate 701 where the first horizontal block 702 is located, and a second guide rail 709 is provided on the lower side of the first vertical plate 701 where the second horizontal block 703 is located. The first guide rail 708 and the second guide rail 709 are arranged in parallel and are both perpendicular to the first horizontal block 702 and the second horizontal block 703. In addition to including two first convex blocks 711, the first movable assembly 710 further includes: a second vertical plate 712 which is arranged in parallel with the first vertical plate 701 and is perpendicular to the mesh frame 01, and the second vertical plate 712 is closer to the mesh frame 01 than the first vertical plate 701. Both sides of the upper end surface of the second vertical plate 712 abut against the lower end surfaces of the first screw rod 704 and the second screw rod 706 respectively. On the side of the second vertical plate 712 close to the first vertical plate 701, a first slider 713 and a second slider 714 adapted to the first guide rail 708 and the second guide rail 709 are provided. Since the lower ends of both the first screw rod 704 and the second screw rod 706 abut against the upper end of the second vertical plate 712, when the first screw rod 704 and the second screw rod 706 are pressed downwards, the first slider 713 and the second slider 714 on the second vertical plate 712 slide downwards along the first guide rail 708 and the second guide rail 709 respectively, so that the two first convex blocks 711 located on the second vertical plate 712 move up and down to insert into Figure 7 the two first positioning concave holes 012 provided on the left side edge 010 of the mesh frame 01 in Figure 7 . After the mesh frame 01 is disassembled, the first spring 705 and the second spring 707 reset, driving the first screw rod 704 and the second screw rod 706 to move upwards. The first slider 713 and the second slider 714 on the second vertical plate 712 slide upwards along the first guide rail 708 and the second guide rail 709 respectively, so that the second vertical plate 712 resets upwards to the initial position, and the two first convex blocks 711 also reset upwards to the initial position.
[0041] Reference Figure 3 and Figure 9, in some embodiments, the second support assembly 800 of the second positioning member 80 includes: an inverted L-shaped plate 801. At the front and rear ends of the upper horizontal end of the inverted L-shaped plate 801, on the side close to the stencil 01, a third horizontal block 802 and a fourth horizontal block 803 are respectively provided. Vertically penetrating through the third horizontal block 802 is a third screw 804, and sleeved on the third screw 804 is a third spring 805. Vertically penetrating through the fourth horizontal block 803 is a fourth screw 806, and sleeved on the fourth screw 806 is a fourth spring 807. At the lower ends of the vertical part of the inverted L-shaped plate 801, respectively at the positions of the third horizontal block 802 and the fourth horizontal block 803, there are provided third guide rails 808 and fourth guide rails 809 that are parallel to each other. On the lower surface of the horizontal part of the inverted L-shaped plate 801, there is provided a cushion block 811. A rotating assembly 820 vertically penetrates through the inverted L-shaped plate 801 and the cushion block 811. At the lower ends of the protruding parts on both sides of the cushion block 811, a third slider 812 and a fourth slider 813 are respectively provided. At the lower end of the vertical part of the inverted L-shaped plate 801 at the position of the cushion block 811, there is provided a horizontal plate 814. At both ends of the middle part of the horizontal plate 814, a first cylinder 815 and a second cylinder 816 are respectively installed. At both ends of the horizontal plate 814, there are respectively provided fifth guide rails 817 and sixth guide rails 818 that are parallel to each other and adapted to the third slider 812 and the fourth slider 813. It can be understood that the fifth guide rails 817 and the sixth guide rails 818 are perpendicular to the third guide rails 808 and the fourth guide rails 809 in space.
[0042] Reference Figure 3 , the second movable assembly 840 includes: a third vertical plate 842 that is parallel to the vertical part of the inverted L-shaped plate 801 and close to the right side of the screen frame. The upper end surface of the third vertical plate 842 abuts against the lower ends of the third screw 804 and the fourth screw 806. On the side of the third vertical plate 842 facing away from the screen frame 01, there are provided a fifth slider 843 and a sixth slider 844 that are adapted to the third guide rails 808 and the fourth guide rails 809. The third vertical plate 842 is parallel to both the first vertical plate 701 and the second vertical plate 712, and is perpendicular to the screen frame 01.
[0043] Reference Figure 1 、 Figure 3 and Figure 6, the second movable component 840 can not only translate the third vertical plate 842 in a plane perpendicular to the plane where the screen frame 01 is located, but also slightly rotate the third vertical plate 842 around the rotating component 820 as the rotation axis in the plane where the screen frame 01 is located. The working process of the second movable component 840 to translate the third vertical plate 842 in a plane perpendicular to the plane where the screen frame 01 is located is similar to the working process of the first movable component 710 to drive the first vertical plate 701 to translate in a plane perpendicular to the plane where the screen frame 01 is located: Since the lower ends of the third screw 804 and the fourth screw 806 both abut against the upper end of the third vertical plate 842, when the third screw 804 and the fourth screw 806 are pressed downward, the fifth slider 843 and the sixth slider 844 on the third vertical plate 842 slide downward along the third guide rail 808 and the fourth guide rail 809 respectively, so that the two second bumps 841 located on the third vertical plate 842 move downward to insert Figure 7 the two second positioning concave holes 013 provided on the right side 011 of the screen frame 01 in
[0044] Reference Figure 7, after the frame 01 has been used for a long time many times, deformation may occur. As one of the deformation methods, for example: the angle α formed by the right side 011 and the bottom side 014 of the frame 01 changes from the initial 90° to less than 90° or greater than 90°. The relative positions of the two second positioning concave holes 013 on the right side 011 of the frame 01 will change, and the two second protrusions 841 also need to make adaptive rotations so that the two second protrusions 841 can accurately insert into the two second positioning concave holes 013. The working principle of the adaptive rotation of the two second protrusions 841 is as follows: to adapt to the change in the angle α formed by the right side 011 and the bottom side 014 of the frame 01, the first air cylinder 815 and the second air cylinder 816 respectively push the rear end and the front end of the cushion block 811. The rear end moves left and right on the fifth guide rail 817 through the third slider 812, and the front end of the cushion block 811 moves left and right on the fifth guide rail 818 through the fourth slider 813. Therefore, the cushion block 811 can rotate within the plane parallel to the frame 01. The cushion block 811 drives the rotating assembly 820 to rotate, and the rotating assembly 820 drives the inverted L-shaped plate 801 to rotate synchronously with the cushion block 811. The inverted L-shaped plate 801 drives the third vertical plate 842 to rotate through the third horizontal block 802 and the fourth horizontal block 803, and the third vertical plate 842 drives the two second protrusions 841 to rotate so that the two second protrusions 841 accurately insert into the two second positioning concave holes 013 on the right side 011 of the frame 01, realizing the accurate and repeated positioning of the frame 01 on the clamping device 00. Therefore, this frame clamping device can also adapt to the change in the shape of the frame and still be able to accurately and repeatedly position and install the frame multiple times.
[0045] Reference Figure 10 , in some embodiments, the rotating assembly 820 includes a rotating shaft 821 and a bearing 822 sleeved on the rotating shaft. The bearing 822 is penetrated through the upper horizontal end of the inverted L-shaped plate 801, and the rotating shaft 821 is penetrated through the bearing 822 and the cushion block 811 (see Figure 9 ).
[0046] Reference Figure 1 , the first clamping member 30 and the second clamping member 40 are used to clamp the front and rear ends of the left side of the frame 01, and the structures of the first clamping member 30 and the second clamping member 40 are exactly the same. Therefore, only the specific structure of the first clamping member 30 will be introduced in this application, and the structure of the second clamping member 40 will not be introduced repeatedly. Reference Figure 11 , the first clamping member 30 includes an upper pressing block 301, a third air cylinder 302, and a first lower support block 303. One end of the upper pressing block 303 is fixed to the upper end surface of the left cross beam 10, and the other end extends horizontally towards the frame 01. The first lower support block 303 extends horizontally from the middle lower end of the left cross beam 10 towards the frame 01. The first lower support block 303 is used to support the frame 01, and the third air cylinder 302 fixes the left cross beam 10 to the lower support block 303 through the upper pressing block 301.
[0047] Reference Figure 1 、 Figure 4 and Figure 11 , the third clamping member 50 and the fourth clamping member 60 are used to clamp the front and rear ends of the right side of the screen frame 01. The structures of the third clamping member 50 and the fourth clamping member 60 are exactly the same. Therefore, in the embodiment of the present application, only the specific structure of the third clamping member 50 is introduced, and the specific structure of the fourth clamping member 60 is not specifically introduced. The third clamping member 50 includes: a fourth air cylinder 501, a base 502, a swing rod 503, a pressing rod 504, and a second lower support block 505;
[0048] The base 502 is installed on the inner side of the right cross beam 20 close to the screen frame 01. The fourth air cylinder 501 is installed on the base 502. The lower end of the swing rod 503 is installed on the output shaft of the fourth air cylinder 501, and the upper end is for the pressing rod 504 to pass through. The second lower support block 505 horizontally extends from the inner side of the right cross beam 20 towards the screen frame 01;
[0049] When the fourth air cylinder 501 drives the swing rod 503 to swing, the swing rod 503 drives the pressing rod 504 to rotate, pressing the rod head of the pressing rod 504 on the upper end surface of the right side of the screen frame 01, and cooperating with the second lower support block 505 to clamp the right side of the screen frame. The third clamping member 50 and the fourth clamping member 60 are designed to clamp and release the right side of the screen frame by the rotation of the swing rod 503 to facilitate the insertion and removal of the screen frame. Specifically, when the screen frame needs to be clamped on the clamping device 00, first horizontally push the left side of the screen frame into the first clamping member 30 and the second clamping member 40. At this time, in the third clamping member 50 and the fourth clamping member 60, the two swing rods 503 are opened outward under the action of the two fourth air cylinders 501, and the right side of the screen frame is not clamped. Start the air cylinders of the first clamping member 30, the second clamping member 40, the third clamping member 50, and the fourth clamping member 60 respectively. The two swing rods 503 rotate downward and press on the right side of the screen frame, and at the same time, the left side of the screen frame is also clamped. At this time, the screen frame is clamped. When the screen frame needs to be removed, close the air cylinders of the first clamping member 30, the second clamping member 40, the third clamping member 50, and the fourth clamping member 60 respectively. The two swing rods 503 rotate upward and return to the open state, and the screen frame is removed. It should be noted that before clamping the screen frame with the first clamping member 30, the second clamping member 40, the third clamping member 50, and the fourth clamping member 60, the screen frame needs to be accurately positioned by the first positioning member 70 and the second positioning member 80 first.
[0050] Reference Figure 6, in some embodiments, the upper end of the first spring 705 abuts against the upper end head of the first screw rod 704, and the lower end abuts against the first horizontal block 702. The upper end of the second spring 707 abuts against the upper end head of the second screw rod 706, and the lower end abuts against the second horizontal block 703. The arrangements of the first spring 705 and the second spring 707 facilitate driving the two first bumps 711 on the second vertical plate 712 to accurately reset.
[0051] Reference Figure 3 , in some embodiments, the upper end of the third spring 805 abuts against the upper end portion of the third screw rod 804, and the lower end abuts against the third horizontal block 802. The upper end of the fourth spring 807 abuts against the upper end head of the fourth screw rod 806, and the lower end abuts against the fourth horizontal block 803. The arrangements of the third spring 805 and the fourth screw rod 806 facilitate driving the two second bumps 841 on the third vertical plate 842 to accurately reset.
[0052] In this application, Figure 6 the two first bumps 711 in Figure 3 and the two second bumps 841 in Figure 7 the two first positioning holes 012 in Figure 8 and the two second positioning holes 013 in
[0053] Finally, it should be noted that the above are only the preferred embodiments of this application and are not used to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.
Claims
1. A screen frame clamping device, comprising: The first clamping member and the second clamping member for clamping the left side of the screen frame, which are arranged at the front and rear ends of the left cross beam, and the third clamping member and the fourth clamping member for clamping the right side of the screen frame, which are arranged at the front and rear ends of the right cross beam. It is characterized in that the screen frame clamping device further includes a first positioning member arranged on the left cross beam and between the first clamping member and the second clamping member, and a second positioning member arranged on the right cross beam and between the third clamping member and the fourth clamping member. The screen frame is positioned and installed on the screen frame clamping device through the first positioning member and the second positioning member.
2. The frame clamping device according to claim 1, characterized in that, The first positioning member includes a first support assembly and a first movable assembly. The first support assembly is connected to the left cross beam. The first movable assembly is movably arranged on the first support assembly and close to the screen frame. Two first bumps are arranged on the first movable assembly. The second positioning member includes a second support assembly and a second movable assembly. The second support assembly is connected to the right cross beam. The second movable assembly is movably arranged on the second support assembly and close to the screen frame. Two second bumps are arranged on the second movable assembly. The first movable assembly slides on the first support assembly to insert the two first bumps into two first positioning concave holes arranged on the left side of the screen frame. The second movable assembly moves on the second support assembly to insert the two second bumps into two second positioning concave holes arranged along the right side of the screen frame. The screen frame is precisely fixed on the screen frame clamping device.
3. The frame clamping device according to claim 2, wherein The first support assembly includes: A first vertical plate connected to the side of the left cross beam close to the screen frame, a first horizontal block and a second horizontal block respectively extending horizontally from the rear end and the front end of the outer side of the first vertical plate towards the screen frame side. A first screw is vertically penetrated through the first horizontal block, and a first spring is sleeved on the first screw. A second screw is vertically penetrated through the second horizontal block, and a second spring is penetrated through the second screw. A first guide rail is arranged on the first vertical plate below the first horizontal block, and a second guide rail parallel to the first guide rail is arranged on the first vertical plate below the second horizontal block. The first movable assembly includes: a second vertical plate parallel to the first vertical plate and close to the screen frame. The upper end surface of the second vertical plate abuts against the lower ends of the first screw and the second screw. On the side of the second vertical plate close to the first vertical plate, a first slider and a second slider respectively adapted to the first guide rail and the second guide rail are arranged. Both the first guide rail and the second guide rail are perpendicular to the first horizontal block and the second horizontal block.
4. The frame clamping device according to claim 2, characterized in that The second support assembly includes an inverted L-shaped plate connected to the right cross beam and close to one side of the screen frame. At the front and rear ends of the upper horizontal end of the inverted L-shaped plate and close to one side of the screen plate, a third horizontal block and a fourth horizontal block are respectively provided. A third screw is vertically penetrated through the third horizontal block, and a third spring is sleeved on the third screw. A fourth screw is vertically penetrated through the fourth horizontal block, and a fourth spring is sleeved on the fourth screw. At the lower ends of the third horizontal block and the fourth horizontal block respectively on the vertical part of the inverted L-shaped plate, a third guide rail and a fourth guide rail which are parallel to each other are provided. On the lower surface of the horizontal part of the inverted L-shaped plate, a cushion block is provided. A rotating assembly vertically penetrates through the inverted L-shaped plate and the cushion block. On the lower surfaces of the horizontal extension parts on both sides of the cushion block, a third slider and a fourth slider are respectively provided. A horizontal plate is provided at the lower end of the cushion block on the vertical part of the inverted L-shaped plate. A first air cylinder and a second air cylinder are respectively installed on both sides of the middle part of the horizontal plate. At the two ends of the horizontal plate, fifth guide rails and sixth guide rails which are parallel to each other and are adapted to the third slider and the fourth slider are respectively provided. The second movable assembly includes: a third vertical plate which is parallel to the vertical part of the inverted L-shaped plate and close to the right side of the screen frame. The upper end surface of the third vertical plate abuts against the lower ends of the third screw and the fourth screw. On the side of the third vertical plate facing away from the screen frame, a fifth slider and a sixth slider which are adapted to the third guide rail and the fourth guide rail are provided.
5. The frame clamping device according to claim 4, characterized in that, The rotating assembly includes a rotating shaft and a bearing sleeved on the rotating shaft. The bearing is fixed on the upper horizontal end of the inverted L-shaped plate. The rotating shaft penetrates through the bearing and the cushion block.
6. The frame clamping device according to claim 4, characterized in that, The third guide rail and the fifth guide rail are perpendicular.
7. The frame clamping device according to claim 1, characterized in that, The structures of the first clamping member and the second clamping member are the same. The first clamping member includes an upper pressing block, a third air cylinder and a first lower support block. One end of the upper pressing block is fixed on the upper end surface of the left cross beam, and the other end extends horizontally towards the screen frame. The first lower support block extends horizontally from the middle lower end of the left cross beam towards the screen frame. The third air cylinder clamps the left side of the screen frame on the left cross beam through the upper pressing block and the first lower support block.
8. The frame clamping device according to claim 1, characterized in that, The structures of the third clamping member and the fourth clamping member are the same. The third clamping member includes: a fourth air cylinder, a base, a swing rod, a pressing rod and a second lower support block. The base is installed on the inner side of the right cross beam close to the screen frame. The fourth air cylinder is installed on the base. The lower end of the swing rod is installed on the output shaft of the fourth air cylinder, and the upper end is penetrated by the pressing rod. The second lower support block extends horizontally from the inner side of the right cross beam towards the screen frame. When the fourth air cylinder drives the swing rod to swing, the swing rod drives the pressing rod to rotate, so that the rod head of the pressing rod presses on the upper end surface of the right side of the screen frame, and cooperates with the second lower support block to clamp the right side of the screen frame.
9. The frame clamping device according to claim 3, characterized in that, The upper end of the first spring abuts against the upper end head of the first screw rod, and the lower end abuts against the first horizontal block. The upper end of the second spring abuts against the upper end head of the second screw rod, and the lower end abuts against the second horizontal block.
10. The frame clamping device according to claim 4, characterized in that, The upper end of the third spring abuts against the upper end portion of the third screw rod, and the lower end abuts against the third horizontal block. The upper end of the fourth spring abuts against the upper end head of the fourth screw rod, and the lower end abuts against the fourth horizontal block.
11. The frame clamping device according to claim 2, characterized in that, The first convex block and the second convex block have the same structure, and the first positioning concave hole and the second positioning concave hole are the same.