A screen printing machine for LCD screen production

Abstract

The utility model provides a screen printer for LCD screen production, including a base, a lifting mechanism is arranged on the base, and a limit frame driven to lift by the lifting mechanism, the limit frame is located above the base, and a screen plate is detachably installed inside, and a material discharge groove matching with the limit frame is opened on the top of the base. In the utility model, the lower half of the glass substrate is placed in the material discharge groove, and the upper half is placed in the limit frame, so as to realize the positioning of the glass substrate, which is not only simple and fast, but also will not cause damage to the glass substrate, and the screen plate is detachable, which can be easily cleaned and maintained.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of screen printing machines, in particular to a screen printing machine for producing LCD liquid crystal screens. Background Art

[0002] The panel of LCD screen is mainly glass substrate, most of which are transparent or translucent. This requires that when printing, it must be ensured that the ink does not penetrate into the inside of the glass, while ensuring the adhesion and durability of the ink on the glass surface. The screen printer can accurately control the layer thickness and distribution of the ink to meet these requirements.

[0003] When a glass substrate is printed by a screen printer, it needs to be positioned. The existing technology usually uses a clamp for positioning, but the glass substrate is brittle and can be easily damaged during the positioning process. On the other hand, the screen of the screen printer in the existing technology is not easy to disassemble, clean and maintain. Utility Model Content

[0004] 1. Technical problems to be solved by the utility model:

[0005] The utility model provides a screen printer for producing LCD screens, which is used to solve the technical problems existing in the above-mentioned background technology.

[0006] 2. Technical solution:

[0007] To achieve the above-mentioned purpose, the technical solution provided by the utility model is: a screen printing machine for LCD screen production, comprising a base, a lifting mechanism is provided on the base, and a limit frame driven to rise and fall by the lifting mechanism, the limit frame is located above the base, and a screen plate is detachably installed inside, and a material discharge trough matching the limit frame is opened on the top of the base.

[0008] Furthermore, a completely penetrating slot is provided on one side of the limit frame, the mesh plate is inserted into the slot, a plurality of evenly distributed first positioning holes are provided on the mesh plate, the first positioning holes are coaxially distributed with the second positioning holes provided on the limit frame, and positioning bolts are assembled in the two coaxial positioning holes.

[0009] Furthermore, rubber pads are provided at the corners of the inner wall of the discharge trough and the limit frame.

[0010] Furthermore, the lifting mechanism includes a top plate, a rectangular array of guide sliding rods are fixedly installed on the bottom of the top plate, the other end of the guide sliding rods is fixed on the top of the base, a guide sliding sleeve is slidably installed on the guide sliding rods, the guide sliding sleeve is fixedly connected to the limit frame, and the limit frame and the top plate are connected through a telescopic motor.

[0011] Furthermore, a plurality of evenly distributed discharge holes are provided on one side of the inner wall of the limit frame, the discharge holes are located above the mesh plate, and are communicated with the drawer slots provided on the outer side of the limit frame, and a recovery drawer is installed in the drawer slots.

[0012] 3. Beneficial effects:

[0013] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects: the lower half of the glass substrate is placed in the material discharging trough, and the upper half is placed in the limit frame, so as to realize the positioning of the glass substrate, which is not only simple and fast, but also will not cause damage to the glass substrate;

[0014] After the mesh plate is inserted into the slot, the positioning bolts are screwed into the aligned first positioning holes and second positioning holes to complete the installation of the mesh plate. Similarly, the mesh plate can be disassembled for easy cleaning and maintenance.

[0015] When the scraper is scraping the printed material on the screen, the excess printed material will enter the drawer slot through the discharge hole and fall into the recovery drawer, so that the printed material can be recycled and reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the shaft side structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the exploded structure of the base and the limit frame of the utility model;

[0018] Figure 3 It is a schematic diagram of the explosion structure of the limit frame and the mesh plate of the utility model;

[0019] Figure 4 It is a schematic diagram of the cutaway structure of the limit frame of the utility model.

[0020] Reference numerals:

[0021] 1. Base; 101. Material discharge trough; 2. Lifting mechanism; 201. Top plate; 202. Guide slide rod; 203. Guide slide sleeve; 204. Telescopic motor; 3. Limit frame; 301. Slot; 302. Second positioning hole; 303. Material discharge hole; 304. Drawer slot; 4. Mesh plate; 401. First positioning hole; 5. Positioning bolt; 6. Rubber pad; 7. Recycling drawer. DETAILED DESCRIPTION

[0022] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", etc. 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0026] See attached Figure 1-4 A screen printer for LCD screen production includes a base 1, on which a lifting mechanism 2 and a limit frame 3 driven to rise and fall by the lifting mechanism 2 are arranged. The limit frame 3 is located above the base 1 and has a stencil 4 detachably installed therein. A material discharge trough 101 matching the limit frame 3 is provided on the top of the base 1.

[0027] In this embodiment, after the lower half of the glass substrate is placed in the discharging trough 101, the lifting mechanism 2 drives the limit frame 3 to descend until the top of the glass substrate abuts against the screen plate 4. At this time, the upper half of the glass substrate is placed in the limit frame 3, which can simply and quickly realize the positioning of the glass substrate without causing damage to the glass substrate. Finally, the printing material is poured on the screen plate 4, and then it is scraped flat by a scraper to complete the screen printing. The screen plate 4 is detachable for easy cleaning and maintenance.

[0028] A completely penetrating slot 301 is provided on one side of the limit frame 3, and the mesh plate 4 is inserted into the slot 301. A plurality of evenly distributed first positioning holes 401 are provided on the mesh plate 4. The first positioning holes 401 are coaxially distributed with the second positioning holes 302 provided on the limit frame 3, and positioning bolts 5 are assembled in the two coaxial positioning holes.

[0029] In this embodiment, after the mesh panel 4 is inserted into the interior of the limit frame 3 along the slot 301, the first positioning hole 401 will be aligned with the second positioning hole 302, and then the positioning bolt 5 is screwed into the two aligned positioning holes to complete the installation of the mesh panel 4. The mesh panel 4 can be disassembled in the same way.

[0030] Rubber pads 6 are provided at the corners of the inner walls of the material discharging trough 101 and the limiting frame 3 to protect the corners of the glass substrate.

[0031] The lifting mechanism 2 includes a top plate 201, a rectangular array of guide slide rods 202 are fixedly installed at the bottom of the top plate 201, the other end of the guide slide rod 202 is fixed to the top of the base 1, a guide slide sleeve 203 is slidably installed on the guide slide rod 202, the guide slide sleeve 203 is fixedly connected to the limit frame 3, and the limit frame 3 and the top plate 201 are connected via a telescopic motor 204.

[0032] In this embodiment, after the telescopic motor 204 is started, the limit frame 3 can be driven to be synchronously telescoped to achieve lifting and lowering, and the limit frame 3 can be stabilized by the sliding guide sleeve 203 sliding on the sliding guide rod 202.

[0033] A plurality of evenly distributed discharge holes 303 are provided on one side of the inner wall of the limit frame 3 . The discharge holes 303 are located above the mesh plate 4 and are connected to a drawer slot 304 provided on the outer side of the limit frame 3 . A recovery drawer 7 is installed in the drawer slot 304 .

[0034] In this embodiment, when the scraper is scraping the printed material on the screen plate 4, the excess printed material will enter the drawer groove 304 through the discharge hole 303 and fall into the recovery drawer 7, so that the printed material can be recycled and reused.

[0035] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

[0036] It should be noted that the above contents belong to the technical cognition scope of the inventor. Since the technical contents in this field are vast and too complicated, the above contents of this application do not necessarily constitute prior art.

Claims

1. A screen printer for LCD screen production, characterized in that: The invention comprises a base (1), the base (1) being provided with a lifting mechanism (2), and a limit frame (3) driven to rise and fall by the lifting mechanism (2), the limit frame (3) being located above the base (1) and having a mesh plate (4) detachably mounted therein, and a material discharge trough (101) matching the limit frame (3) being provided at the top of the base (1).

2. The screen printer for LCD screen production according to claim 1, characterized in that: A completely penetrating slot (301) is provided on one side of the limit frame (3), the mesh plate (4) is inserted into the slot (301), a plurality of evenly distributed first positioning holes (401) are provided on the mesh plate (4), the first positioning holes (401) are coaxially distributed with the second positioning holes (302) provided on the limit frame (3), and positioning bolts (5) are installed in the two coaxial positioning holes.

3. The screen printer for LCD screen production according to claim 1, characterized in that: Rubber pads (6) are provided at the inner corners of the discharge trough (101) and the limit frame (3).

4. The screen printer for LCD screen production according to claim 1, characterized in that: The lifting mechanism (2) comprises a top plate (201), a rectangular array of guide slide bars (202) being fixedly mounted on the bottom of the top plate (201), the other end of the guide slide bars (202) being fixed to the top of the base (1), a guide slide sleeve (203) being slidably mounted on the guide slide bars (202), the guide slide sleeve (203) being fixedly connected to the limit frame (3), and the limit frame (3) and the top plate (201) being connected via a telescopic motor (204).

5. The screen printer for LCD screen production according to claim 1, characterized in that: A plurality of evenly distributed discharge holes (303) are provided on one side of the inner wall of the limit frame (3); the discharge holes (303) are located above the mesh plate (4) and are connected to a drawer groove (304) provided on the outer side of the limit frame (3); a recovery drawer (7) is installed in the drawer groove (304).

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