Material taking and placing linkage mechanism of screen printing machine

Abstract

The utility model relates to the technical field of screen printing machines, in particular to a screen printing machine material taking and placing linkage mechanism which comprises a support, a supporting table and a screen printing body are arranged on the support, a supporting shaft and a rotating power source in transmission connection with the supporting shaft are rotationally connected to the support, and the screen printing body is fixed to the supporting shaft. The supporting table is in sliding connection with the support, the sliding direction of the supporting table is parallel to the axis of the supporting shaft, a linkage assembly is arranged between the supporting table and the supporting shaft, when the silk-screen main body rotates downwards, the linkage assembly can make the supporting table move to the position below the silk-screen main body, and when the silk-screen main body rotates upwards, the linkage assembly can make the supporting table move to the position below the silk-screen main body. The linkage assembly can enable the supporting table to be far away from the screen printing body. Under the action of the linkage assembly, the supporting table is far away from the silk-screen main body, and the supporting table is staggered from the silk-screen main body movement station, so that the hand clamping condition can be avoided when a bearing object is taken and placed.

Description

Technical Field

[0001] The utility model relates to the technical field of screen printing machines, in particular to a material taking and discharging linkage mechanism for a screen printing machine. Background Art

[0002] The basic principle of screen printing technology is to use a silk screen (usually polyester or metal screen) as a printing plate, and push the ink through the openings of the screen by a scraper to transfer the ink to the substrate (such as paper, textiles, glass, metal, etc.). Some parts of the screen are closed to form the negative shape of the pattern or text, while the open parts allow the ink to pass through.

[0003] The main components of the screen printing equipment include a screen printing body that can print and a support table for placing substrates. The screen printing body generally realizes opening and closing and printing actions through an electrically controlled mechanical structure. When the screen printing body is away from the support table, the worker takes the printed items off the support table with one hand and puts the new substrate on the support table with the other hand. After that, the electronic control system detects that the items are in place and closes the screen printing body again to perform the screen printing action. Since the placement and removal of substrates are carried out at the operating station of the screen printing body, when the detection system misjudges or fails, the screen printing body drops when the worker is placing or taking out the substrate, which will cause the worker to be pinched. Utility Model Content

[0004] The utility model aims to solve the problem that when the detection system makes a wrong judgment or fails, the screen printing body descends in the process of placing or taking out the printed material, which may cause the worker to be pinched and injured, and proposes a screen printing machine material taking and placing linkage mechanism.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A linkage mechanism for taking and releasing materials of a screen printing machine comprises a bracket, on which a support platform and a screen printing body are provided, the bracket is rotatably connected to a support shaft and a rotating power source transmission-connected to the support shaft, the screen printing body is fixed on the support shaft, the support platform is slidably connected to the bracket, the sliding direction of the support platform is parallel to the axis of the support shaft, a linkage component is provided between the support platform and the support shaft, when the screen printing body rotates downward, the linkage component can move the support platform to the bottom of the screen printing body, and when the screen printing body rotates upward, the linkage component can move the support platform away from the screen printing body.

[0007] The linkage assembly includes a screw rod, which is arranged parallel to the support shaft and is rotatably connected to the bracket. A nut is fixedly connected to the side of the support platform, the nut is threadedly connected to the screw rod, and the screw rod is transmission-connected to the support shaft.

[0008] One end of the screw rod is fixedly connected to a first gear, one end of the support shaft is fixedly connected to a second gear, and the first gear is meshed with the second gear for transmission.

[0009] The first gear and the second gear are both helical gears.

[0010] The second gear pitch circle diameter is greater than the first gear pitch circle diameter.

[0011] One end of the screw rod is fixedly connected to a first pulley, one end of the support shaft is fixedly connected to a second pulley, and the first pulley and the second pulley are driven by a belt.

[0012] The second pulley has a diameter greater than the first pulley diameter.

[0013] The first pulley and the second pulley are both toothed pulleys, and the belt is a toothed belt.

[0014] The utility model proposes a linkage mechanism for taking and releasing materials of a screen printing machine, which has the beneficial effect that: the device mechanically links the support table and the screen printing body through a linkage component. When the support shaft drives the screen printing body to move upward to open the upper space of the support table, the linkage component moves the support table away from the screen printing body, so that the support table is staggered from the movement position of the screen printing body, so that the hand can be avoided from being pinched when taking and placing the load. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0016] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 .

[0017] In the figure: bracket 1, support platform 2, screen printing body 3, screw rod 4, first gear 5, nut 6, slide rail 7, rotation power source 8, support shaft 9, second gear 10. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figure 1-2, a linkage mechanism for taking and releasing materials of a screen printing machine comprises a bracket 1, on which a support platform 2 and a screen printing body 3 are arranged, the support platform 2 is used to support a substrate, and the screen printing body 3 is used to complete a screen printing process, the bracket 1 is rotatably connected with a support shaft 9 and a rotating power source 8 connected to the support shaft 9, the screen printing body 3 is fixed on the support shaft 9, and the rotating power source 8 drives the support shaft 9 to rotate, so that the screen printing body 3 rotates upward or downward around the support shaft 9, and the substrate is taken and placed when rotating upward, and the screen printing operation is performed when rotating downward, the support platform 2 is slidably connected to the bracket 1, and the sliding direction of the support platform 2 is parallel to the axis of the support shaft 9, and a linkage component is arranged between the support platform 2 and the support shaft 9, when the screen printing body 3 rotates downward, the linkage component can make the support platform 2 move below the screen printing body 3, and when the screen printing body 3 rotates upward, the linkage component can make the support platform 2 move away from the screen printing body 3.

[0020] This device mechanically links the support platform 2 and the screen printing body 3 through a linkage component. When the support shaft 9 drives the screen printing body 3 to move upward to open the upper space of the support platform 2, the linkage component moves the support platform 2 away from the screen printing body 3, so that the support platform 2 is staggered from the moving position of the screen printing body 3, so that the hand can be avoided when taking and placing the load.

[0021] As a linkage mode, the linkage assembly includes a screw rod 4, which is arranged parallel to the support shaft 9, the screw rod 4 is rotatably connected to the bracket 1, a nut 6 is fixed to the side of the support platform 2, the nut 6 is threadedly connected to the screw rod 4, and the screw rod 4 is transmission-connected to the support shaft 9, reference Figure 1 When the support shaft 9 rotates, the screw rod 4 is driven to rotate. Under the action of the thread, the support platform 2 rotates left or right. For details, refer to Figure 1 When the support shaft 9 drives the screen printing body 3 to rotate upward, the support platform 2 slides to the left to stagger the movement trajectory of the screen printing body 3. When the support shaft 9 drives the screen printing body 3 to rotate downward, the support platform 2 slides to the right to the movement position of the screen printing body 3.

[0022] As a transmission structure, a first gear 5 is fixedly connected to one end of the screw rod 4, a second gear 10 is fixedly connected to one end of the support shaft 9, and the first gear 5 and the second gear 10 are meshed for transmission; both the first gear 5 and the second gear 10 are helical gears; the pitch circle diameter of the second gear 10 is larger than the pitch circle diameter of the first gear 5.

[0023] The gear transmission is more stable, and the rotation of the second gear 10 drives the first gear 5 to rotate quickly, so that the small angle movement of the support shaft 9 can make the support platform 2 quickly stagger the screen printing station of the screen printing body 3.

[0024] As another transmission structure, one end of the screw rod 4 is fixedly connected to a first pulley, and one end of the support shaft 9 is fixedly connected to a second pulley. The first pulley and the second pulley are driven by a belt. The diameter of the second pulley is larger than that of the first pulley. Both the first pulley and the second pulley are toothed pulleys, and the belt is a toothed belt. The combination of the toothed pulley and the toothed belt can also achieve an accurate transmission effect.

[0025] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technical solution, concept, and design obtained by equivalent replacement or change based on the technical solution and utility model concept of the utility model by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model.

Claims

1. A screen printing machine material taking and unloading linkage mechanism, comprising a bracket (1), the bracket (1) is provided with a support platform (2), a screen printing body (3), the bracket (1) is rotatably connected to a support shaft (9), and a rotating power source (8) drivingly connected to the support shaft (9), the screen printing body (3) is fixed on the support shaft (9), characterized in that: The support platform (2) is slidably connected to the bracket (1); the sliding direction of the support platform (2) is parallel to the axis of the support shaft (9); a linkage component is provided between the support platform (2) and the support shaft (9); when the screen printing body (3) rotates downward, the linkage component can move the support platform (2) below the screen printing body (3); when the screen printing body (3) rotates upward, the linkage component can move the support platform (2) away from the screen printing body (3).

2. A screen printing machine material taking and discharging linkage mechanism according to claim 1, characterized in that: The linkage assembly comprises a screw rod (4), the screw rod (4) is arranged parallel to the support shaft (9), the screw rod (4) is rotatably connected to the bracket (1), a nut (6) is fixedly connected to the side of the support platform (2), the nut (6) is threadedly connected to the screw rod (4), and the screw rod (4) is transmission-connected to the support shaft (9).

3. A screen printing machine material taking and discharging linkage mechanism according to claim 2, characterized in that: One end of the screw rod (4) is fixedly connected to a first gear (5), one end of the support shaft (9) is fixedly connected to a second gear (10), and the first gear (5) and the second gear (10) are meshed for transmission.

4. A screen printing machine material taking and releasing linkage mechanism according to claim 3, characterized in that: The first gear (5) and the second gear (10) are both helical gears.

5. A screen printing machine material taking and discharging linkage mechanism according to claim 3 or 4, characterized in that: The pitch circle diameter of the second gear (10) is greater than the pitch circle diameter of the first gear (5).

6. The material taking and releasing linkage mechanism of a screen printing machine according to claim 2, characterized in that: One end of the screw rod (4) is fixedly connected to a first pulley, and one end of the support shaft (9) is fixedly connected to a second pulley, and the first pulley and the second pulley are driven by a belt.

7. A screen printing machine material taking and discharging linkage mechanism according to claim 6, characterized in that: The second pulley has a diameter greater than the first pulley diameter.

8. A screen printing machine material taking and discharging linkage mechanism according to claim 6 or 7, characterized in that: The first pulley and the second pulley are both toothed pulleys, and the belt is a toothed belt.

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