Screen frame alignment mechanism and vertical screen printing machine

Abstract

The utility model relates to the technical field of screen printing machines, and discloses a screen frame alignment mechanism and a vertical screen printing machine with the screen frame alignment mechanism, the screen frame alignment mechanism comprises a bottom plate, a lever, a lifting pin and an adjusting piece, and the bottom plate is connected with a rack of the vertical screen printing machine; the middle section of the lever is hinged to the bottom plate; the lifting pin is arranged on the bottom plate in a lifting mode, the upper end of the lifting pin is used for abutting against the bottom face of the screen frame, and the lower end of the lifting pin is connected with one end of the lever. The adjusting part is in threaded connection with the bottom plate, one end of the adjusting part is connected or abuts against the other end of the lever, and the adjusting part is used for driving the lever to rotate so as to drive the lifting pin to ascend and descend. The lever plays a role of a seesaw, the height of the lifting pin is adjusted by rotating the adjusting piece, and the screen frame is lifted by the lifting pin, so that the height of the screen frame can be adjusted, the screen frame can be conveniently driven to move in the horizontal direction, namely the horizontal position of the screen frame is adjusted, finally, the screen frame is conveniently and quickly aligned, and the screen frame does not need to be pulled up manually or by a hoisting device all the time. And convenience, rapidness, time saving and labor saving are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of screen printing machines, in particular to a screen frame alignment mechanism and a vertical screen printing machine. Background Art

[0002] A vertical screen printer is one that uses a vertical screen frame. Typically, a screen frame and printing mechanism are installed on either side of a clamping plate. The two printing mechanisms, along with the two screen frames attached to the screen frame connection, work on both sides of the clamping plate to print. Currently, screen frame alignment requires manual or overhead installation and adjustment, which is inconvenient, time-consuming, and labor-intensive. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a screen frame alignment mechanism that can align the screen frame conveniently and quickly.

[0004] The utility model also provides a vertical screen printing machine with the screen frame alignment mechanism.

[0005] According to an embodiment of the first aspect of the present invention, a screen frame alignment mechanism includes a base plate, a lever, a push pin and an adjusting member, wherein the base plate is connected to the frame of a vertical screen printing machine; the middle section of the lever is hinged on the base plate; the push pin is arranged on the base plate so as to be able to be raised and lowered, the upper end of the push pin is used to press against the bottom surface of the screen frame, and the lower end of the push pin is connected to one end of the lever; the adjusting member is threadedly connected to the base plate, one end of the adjusting member is connected to or abuts against the other end of the lever, and the adjusting member is used to drive the lever to rotate to drive the push pin to rise and fall.

[0006] It has at least the following beneficial effects:

[0007] The lever acts as a seesaw. By rotating the adjustment member to adjust the height of the push pin, the screen frame is supported by the push pin, which can adjust the screen frame height while also facilitating the horizontal movement of the screen frame, that is, adjusting the horizontal position of the screen frame. Ultimately, the screen frame can be easily and quickly aligned. When the screen frame is adjusted to the appropriate position, the screen frame connecting device locks the screen frame. When the position of the screen frame needs to be adjusted at other times, the screen frame connecting device releases the screen frame, and by rotating the adjustment member and driving the screen frame to move horizontally again, the screen frame can be aligned again, and finally locked again by the screen frame connecting device. The alignment of the screen frame does not require manual or lifting devices to continuously pull up the screen frame, which is convenient, fast, and saves time and effort.

[0008] According to some embodiments of the present invention, a first oblong hole and a second oblong hole are provided at one end of the lever, the length direction of the first oblong hole is the same as the length direction of the lever, the axial direction of the first oblong hole is horizontal, the length direction of the second oblong hole is the same as the length direction of the lever, the axial direction of the second oblong hole is parallel to the axial direction of the first oblong hole, a first hinge shaft is passed through the first oblong hole, and the lower end of the ejector pin is passed through the second oblong hole and connected to the first hinge shaft.

[0009] According to some embodiments of the present invention, the lever is arranged below the base plate, a guide hole and a threaded hole are provided on the base plate, the push pin is passed through the guide hole, the adjusting member is threadedly connected to the threaded hole, and one end of the adjusting member is connected or abutted against the other end of the lever.

[0010] According to some embodiments of the present invention, one end of the adjusting member abuts against an upper surface of the other end of the lever.

[0011] According to some embodiments of the present invention, a nut seat is further provided on the base plate, and the threaded hole is provided on the nut seat.

[0012] According to some embodiments of the present invention, two parallel connecting plates are further included, the upper ends of the two connecting plates are connected to the lower surface of the base plate, and the two connecting plates are hinged to the middle section of the lever through a second hinge shaft.

[0013] According to some embodiments of the present invention, the connecting plate includes a connected horizontal portion and a vertical portion, the horizontal portion is connected to the base plate via a first fastener, and the second hinge shaft can be rotatably disposed on the two vertical portions.

[0014] According to some embodiments of the present invention, the ejector pin is sleeved on an elastic member, and two ends of the elastic member respectively abut against the lower surface of the bottom plate and one end of the lever.

[0015] According to some embodiments of the present invention, the adjusting member is a screw, and the other end of the adjusting member is provided with a rotating handle.

[0016] According to the second aspect of the present invention, the vertical screen printing machine includes a frame, a screen frame connecting device, a clamping mechanism, two screen printing mechanisms and four screen frame alignment mechanisms according to the first aspect of the present invention. The screen frame connecting device, the clamping mechanism and the two screen printing mechanisms are all arranged on the frame, the bottom plate is connected to the frame, and the four ejector pins are arranged at four corners between the two screen printing mechanisms.

[0017] It has at least the following beneficial effects:

[0018] The vertical screen printing machine has all the beneficial effects brought about by the screen frame alignment mechanism of the above embodiment, and no further description will be given here.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 This is a schematic structural diagram of an embodiment of the utility model, a screen frame and a clamping plate mechanism;

[0022] Figure 2 for Figure 1 A partial enlarged schematic diagram of point A in the middle;

[0023] Figure 3 This is a schematic structural diagram of an embodiment of the present utility model;

[0024] Figure Number:

[0025] Base plate 100;

[0026] Lever 200; first oblong hole 210; second oblong hole 220; first hinge shaft 230;

[0027] Top pin 300;

[0028] Adjustment member 400;

[0029] Nut seat 500;

[0030] Connecting plate 600; second hinge shaft 610;

[0031] Screen frame 700;

[0032] Clamping mechanism 800. DETAILED DESCRIPTION

[0033] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0034] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0035] In the description of this utility model, "a plurality" means more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] Reference Figures 1 to 3 The utility model discloses a screen frame alignment mechanism, including a base plate 100, a lever 200, a push pin 300 and an adjusting member 400. The base plate 100 is connected to the frame of the vertical screen printing machine; the middle section of the lever 200 is hinged to the base plate 100; the push pin 300 can be raised and lowered on the base plate 100, the upper end of the push pin 300 is used to press against the bottom surface of the screen frame 700, and the lower end of the push pin 300 is connected to one end of the lever 200; the adjusting member 400 is threadedly connected to the base plate 100, one end of the adjusting member 400 is connected to or abuts the other end of the lever 200, and the adjusting member 400 is used to drive the lever 200 to rotate to drive the push pin 300 to rise and fall.

[0038] When installing the screen frame on the screen frame connecting device, first place the screen frame against the push pin 300, and the middle section of the lever 200 is the fulcrum. The lever 200 can rotate on the base plate 100, and the push pin 300 plays the role of supporting the screen frame. The push pin 300 presses down one end of the lever 200, so that the other end of the lever 200 swings upward and rests on the adjusting member 400, and then the adjusting member 400 is rotated to adjust the position of the adjusting member 400, so as to adjust the position of the other end of the lever 200, and then adjust the position of one end of the lever 200 and the push pin 300. Since the push pin 300 can be raised and lowered on the base plate 100, the height of the push pin 300 and the screen frame can be adjusted by the adjusting member 400, and after the screen frame is lifted by the push pin 300, it can be easily pushed in the horizontal direction.

[0039] In other words, the lever 200 acts as a seesaw. By rotating the adjusting member 400 to adjust the height of the push pin 300, the screen frame is lifted by the push pin 300. This allows the screen frame height to be adjusted while also facilitating the horizontal movement of the screen frame, i.e., adjusting the horizontal position of the screen frame. This ultimately allows the screen frame to be easily and quickly aligned. When the screen frame is adjusted to the appropriate position, the screen frame connecting device locks the screen frame. When the screen frame position needs to be adjusted at other times, the screen frame connecting device releases the screen frame, and by rotating the adjusting member 400 and driving the screen frame to move horizontally again, the screen frame can be aligned again. Finally, the screen frame connecting device locks the screen frame again. Aligning the screen frame eliminates the need for manual or lifting devices to constantly pull up the screen frame, making it convenient, quick, time-saving, and labor-saving.

[0040] Reference Figure 3 It is conceivable that the cross section of the lever 200 is square. The screen frame connecting device may be the vertical screen frame connecting device disclosed in the utility model patent CN218701968U.

[0041] Since one end of the lever 200 actually performs a swinging motion, the horizontal position of the push pin 300 is generally stationary, thereby preventing horizontal displacement between the push pin 300 and the screen frame when the push pin 300 drives the screen frame to rise or fall. In order to enable the push pin 300 to rise and fall in a horizontal position, the lower end of the push pin 300 needs to be connected to one end of the lever 200 by a movable connection.

[0042] Reference Figure 3 In some embodiments, a first oblong hole 210 and a second oblong hole 220 are provided at one end of the lever 200, the length direction of the first oblong hole 210 is the same as the length direction of the lever 200, the axial direction of the first oblong hole 210 is horizontal, the length direction of the second oblong hole 220 is the same as the length direction of the lever 200, the axial direction of the second oblong hole 220 is parallel to the axial direction of the first oblong hole 210, a first hinge shaft 230 is passed through the first oblong hole 210, and the lower end of the ejector pin 300 is passed through the second oblong hole 220 and connected to the first hinge shaft 230.

[0043] The first hinge shaft 230 is movable within the first oblong hole 210 along the length of the first oblong hole 210. The lower end of the ejector pin 300 is connected to the other end of the lever 200 via the first hinge shaft 230. When one end of the lever 200 swings, the first hinge shaft 230 moves within the first oblong hole 210 along the length of the first oblong hole 210, causing the angle between the lever 200 and the ejector pin 300 to change. The ejector pin 300 then swings relative to the lever 200 within the second oblong hole 220, preventing interference between the ejector pin 300 and the lever 200 and preventing relative swinging.

[0044] It can be imagined that both ends of the first hinge shaft 230 extend to the outside of the lever 200 and are provided with limit grooves, both limit grooves are provided with retaining springs, and both retaining springs are against the outer surface of the lever 200, so as to limit the first hinge shaft 230 in the first oblong hole 210.

[0045] Reference Figure 2 and Figure 3 In some embodiments, the lever 200 is disposed below the base plate 100, so that the upper surface of the base plate 100 is relatively open, which is convenient for arranging components such as the screen frame and the screen frame connecting device.

[0046] A guide hole and a threaded hole are provided on the base plate 100. The axial directions of the guide hole and the threaded hole are in the up-down direction. The ejector pin 300 is passed through the guide hole. The guide hole limits the ejector pin 300 to move only in the up-down direction. The length of the ejector pin 300 must be long enough to ensure that the upper end of the ejector pin 300 is above the base plate 100 so as to ensure that the upper end of the ejector pin 300 is against the bottom surface of the mesh frame, and the lower end of the ejector pin 300 is below the base plate 100 so as to ensure that the lower end of the ejector pin 300 can be connected to one end of the lever 200.

[0047] The adjusting member 400 is threadedly connected to the threaded hole, with one end of the adjusting member 400 being the lower end and the other end of the adjusting member 400 being the upper end. One end of the adjusting member 400 is connected to or abuts the other end of the lever 200. When the adjusting member 400 is rotated, the adjusting member 400 is raised and lowered. One end of the adjusting member 400 extends below the base plate 100 to ensure that one end of the adjusting member 400 is connected to or abuts the other end of the lever 200. The other end of the adjusting member 400 extends above the base plate 100, making it easier to operate the adjusting member 400 through the other end of the adjusting member 400.

[0048] Reference Figure 3 In some embodiments, the adjusting member 400 is a screw. A rotating handle is provided at the other end of the adjusting member 400, which allows the adjusting member 400 to be easily rotated. It is contemplated that the rotating handle is cylindrical, with the diameter of the rotating handle being larger than the diameter of the adjusting member 400, and the outer surface of the rotating handle being provided with anti-slip grooves. In another embodiment, the rotating handle may be a handwheel.

[0049] In some embodiments, one end of the adjusting member 400 rests against the upper surface of the other end of the lever 200. When the adjusting member 400 is rotated, the adjusting member 400 is raised and lowered, the lever 200 swings, and one end of the adjusting member 400 can slide on the other end of the lever 200.

[0050] In another embodiment, a third oblong hole and a fourth oblong hole may also be provided on the other end of the lever 200. The structures of the third oblong hole and the fourth oblong hole are respectively the same as those of the first oblong hole and the second oblong hole. A third hinge shaft is provided in the first oblong hole. The third hinge shaft has the same structure as the first hinge shaft 230. A connecting rod is passed through the fourth oblong hole. One end of the connecting rod is connected to the third hinge shaft. The other end of the connecting rod extends to the outside of the lever 200 and is connected to a bearing. The bearing is connected to one end of the adjusting member 400.

[0051] Reference Figures 1 to 3 In some embodiments, the screen frame alignment mechanism further includes a nut seat 500 disposed on the base plate 100. The threaded hole is disposed on the nut seat 500, eliminating the need for threaded holes in the base plate 100. Since the base plate 100 has larger dimensions than the nut seat 500, providing threaded holes in the nut seat 500 is more convenient and faster than directly providing threaded holes in the base plate 100. The nut seat 500 is connected to the base plate 100 via a second fastener.

[0052] Reference Figure 3 In some embodiments, the screen frame alignment mechanism further includes two parallel connecting plates 600, the upper ends of the two connecting plates 600 are connected to the lower surface of the base plate 100, and the two connecting plates 600 are hinged to the middle section of the lever 200 through a second hinge shaft 610. The two connecting plates 600 act as supports, limiting the lever 200 below the base plate 100.

[0053] In some embodiments, the connecting plate 600 includes a horizontal portion and a vertical portion connected to each other, the horizontal portion is connected to the base plate 100 via a first fastener, and the second hinge shaft 610 can be rotatably disposed on the two vertical portions.

[0054] The connection between the two connecting plates 600 and the base plate 100 is a detachable connection direction, and the top pin 300 is passed through the guide hole, and the adjustment member 400 is threadedly connected to the threaded hole, so the entire screen frame alignment mechanism can be easily installed on the base plate 100 and completely removed from the base plate 100.

[0055] In some embodiments, the ejector pin 300 is sleeved on an elastic member, and the two ends of the elastic member respectively abut against the lower surface of the base plate 100 and one end of the lever 200. The elastic member forces one end of the lever 200 to maintain a downward swing trend, so that the other end of the lever 200 maintains an upward swing trend, thereby causing the other end of the lever 200 to always abut against the other end of the adjusting member 400.

[0056] It is conceivable that the elastic member is a spring. The first fastener and the second fastener can both be screws or bolts.

[0057] The utility model discloses a vertical screen printing machine, comprising a frame, a screen frame connecting device, a clamping plate mechanism 800, two screen printing mechanisms and the four screen frame alignment mechanisms mentioned above. The screen frame connecting device, the clamping plate mechanism 800 and the two screen printing mechanisms are all arranged on the frame, the bottom plate 100 is connected to the frame, and four ejector pins 300 are arranged at four corners between the two screen printing mechanisms.

[0058] Two push pins 300 are used to lift the two ends of one screen frame, and the other two push pins 300 are used to lift the two ends of the other screen frame. After adjusting the two screen frames to the appropriate position, the two screen frames are limitedly connected to the frame through the screen frame connecting device. The clamping mechanism 800 is used to clamp and position the workpiece. Under the action of the two screen printing mechanisms, the printing on both sides of the workpiece is finally completed.

[0059] The vertical screen printing machine has all the beneficial effects brought about by the screen frame alignment mechanism of the above embodiment, and no further description will be given here.

[0060] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A screen frame alignment mechanism, characterized in that: include: A bottom plate (100) is connected to a frame of the vertical screen printing machine; A lever (200), the middle section of which is hinged to the base plate (100); A push pin (300) is provided on the bottom plate (100) in a manner capable of being raised and lowered, wherein the upper end of the push pin (300) is used to press against the bottom surface of the screen frame (700), and the lower end of the push pin (300) is connected to one end of the lever (200); An adjusting member (400) is threadedly connected to the base plate (100), one end of the adjusting member (400) is connected to or abuts against the other end of the lever (200), and the adjusting member (400) is used to drive the lever (200) to rotate, thereby driving the ejector pin (300) to move up and down.

2. The screen frame alignment mechanism according to claim 1, characterized in that: One end of the lever (200) is provided with a first oblong hole (210) and a second oblong hole (220), the length direction of the first oblong hole (210) is the same as the length direction of the lever (200), the axial direction of the first oblong hole (210) is horizontal, the length direction of the second oblong hole (220) is the same as the length direction of the lever (200), the axial direction of the second oblong hole (220) is parallel to the axial direction of the first oblong hole (210), a first hinge shaft (230) is passed through the first oblong hole (210), and the lower end of the ejector pin (300) is passed through the second oblong hole (220) and is connected to the first hinge shaft (230).

3. A screen frame alignment mechanism according to claim 1 or 2, characterized in that: The lever (200) is arranged below the base plate (100). The base plate (100) is provided with a guide hole and a threaded hole. The ejector pin (300) is passed through the guide hole. The adjusting member (400) is threadedly connected to the threaded hole, and one end of the adjusting member (400) is connected to or abuts against the other end of the lever (200).

4. The screen frame alignment mechanism according to claim 3, characterized in that: One end of the adjusting member (400) abuts against the upper surface of the other end of the lever (200).

5. The screen frame alignment mechanism according to claim 3, characterized in that: It also includes a nut seat (500) provided on the base plate (100), and the threaded hole is provided on the nut seat (500).

6. The screen frame alignment mechanism according to claim 3, characterized in that: It also includes two mutually parallel connecting plates (600), the upper ends of the two connecting plates (600) are connected to the lower surface of the bottom plate (100), and the two connecting plates (600) are hinged to the middle section of the lever (200) via a second hinge shaft (610).

7. The screen frame alignment mechanism according to claim 6, characterized in that: The connecting plate (600) comprises a connected horizontal portion and a vertical portion, the horizontal portion being connected to the bottom plate (100) via a first fastener, and the second hinge shaft (610) being rotatably disposed on the two vertical portions.

8. The screen frame alignment mechanism according to claim 3, characterized in that: The ejector pin (300) is sleeved on an elastic member, and two ends of the elastic member respectively abut against the lower surface of the bottom plate (100) and one end of the lever (200).

9. The screen frame alignment mechanism according to claim 1, characterized in that: The adjusting member (400) is a screw, and the other end of the adjusting member (400) is provided with a rotating handle.

10. Vertical screen printing machine, characterized in that, The invention comprises a frame, a screen frame connecting device, a clamping plate mechanism (800), two screen printing mechanisms and four screen frame alignment mechanisms according to any one of claims 1 to 9, wherein the screen frame connecting device, the clamping plate mechanism (800) and the two screen printing mechanisms are all arranged on the frame, the bottom plate (100) is connected to the frame, and the four ejector pins (300) are arranged at four corners between the two screen printing mechanisms.

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