Printing scraper quick release structure for screen printing machine

Abstract

The utility model discloses a printing scraper quick release structure for a screen printing machine, and relates to the technical field of wafer printing processing. According to the technical scheme, the printing scraper quick detaching structure for the screen printing machine comprises a screen printing machine body, a screen plate is installed on the screen printing machine body, a scraper is installed on the screen printing machine body, and the scraper is installed above the screen plate; the scraper comprises a connecting column, the connecting column is fixedly connected with the screen printing machine body, a connecting frame is installed on the connecting column, a fixing frame is installed on the connecting frame, a sliding sleeve is installed on the fixing frame in a sliding mode, a ball frame is installed on the fixing frame, a positioning ball is installed on the ball frame, and a blade assembly is installed in the sliding sleeve in a sliding mode. The utility model aims to provide a printing scraper quick release structure for a screen printing machine, which achieves the effect of quickly mounting and dismounting a scraper in the screen printing machine.

Description

Technical Field

[0001] This utility model discloses a quick-release structure for a printing squeegee in a screen printing machine, relating to the field of wafer printing processing technology. Background Technology

[0002] Wafer screen printing is a printing technology used to transfer patterns onto the surface of wafers. It is widely used in semiconductor manufacturing processes for prototyping, circuit pattern printing, marking, packaging, and other related applications. Similar to traditional screen printing, wafer screen printing uses a screen to transfer patterns or ink onto the wafer surface, but it is specifically designed for the fine processing of wafer materials, requiring extremely high precision and detail. The basic steps of wafer screen printing are similar to traditional screen printing, but considering the micron-level precision and complexity of wafers, more sophisticated equipment and processes are typically required. Wafer screen printing is a flexible and cost-effective printing technology, particularly suitable for prototyping, circuit pattern printing, and other related applications in semiconductor manufacturing processes. Although it has limitations in high-precision applications, with precise control and appropriate ink selection, it can still provide good solutions in specific areas such as low-precision circuits, packaging, and MEMS sensors.

[0003] The squeegee of a wafer screen printing machine requires regular replacement or maintenance, especially after prolonged use. The squeegee is one of the core components in the screen printing process, directly affecting ink transfer, pattern clarity, and print quality. Wear, aging, deformation, and improper use of the squeegee all negatively impact print quality. Therefore, proper maintenance and timely replacement of the squeegee not only help ensure print quality but also extend the lifespan of the screen printing machine and ensure production stability. Traditional squeegees are typically tightened with screws, and their disassembly and installation require significant time. Therefore, a quick-release squeegee structure for screen printing machines is needed to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide a quick-release structure for the squeegee of a screen printing machine, so as to achieve the effect of quick installation and disassembly of the squeegee in the screen printing machine.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-release structure for a screen printing squeegee, comprising a screen printing machine body, characterized in that: a screen printing plate is mounted on the screen printing machine body, a squeegee is mounted on the screen printing machine body, and the squeegee is mounted above the screen printing plate; the squeegee includes a connecting post, the connecting post is fixedly connected to the screen printing machine body, a connecting frame is mounted on the connecting post, a fixing frame is mounted on the connecting frame, a sliding sleeve is slidably mounted on the fixing frame, a ball frame is mounted on the fixing frame, a positioning bead is mounted on the ball frame, and a blade assembly is slidably mounted inside the sliding sleeve.

[0006] Preferably, a trigger block is installed on the inner surface of the sliding sleeve, and the lower surface of the trigger block is in close contact with the surface of the positioning bead.

[0007] Preferably, the blade assembly is provided with a positioning groove.

[0008] Preferably, the beveled edge of the trigger block is chamfered.

[0009] Preferably, a fixing plate is provided on the fixing frame, and several sets of springs are installed inside the fixing plate. Abutment protrusions are provided on the inner surface of the sliding sleeve, and the springs are fixedly connected to the abutment protrusions.

[0010] Preferably, the sliding sleeve is equipped with anti-slip rubber.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: by the operator sliding the sliding sleeve towards the fixed plate, the trigger block leaves the surface of the positioning bead, and the positioning bead can be loose on the ball frame. Then, the blade assembly is inserted into the sliding sleeve, and the sliding sleeve is slid in the opposite direction on the fixed frame. The sliding sleeve presses the positioning bead onto the ball frame and presses the blade assembly, thereby fixing the blade assembly in a tight position. This process can be completed by simply sliding the sliding sleeve to disassemble and install the blade assembly, thus achieving the effect of quick installation and disassembly of the squeegee in the screen printing machine. Attached Figure Description

[0012] Figure 1 A schematic diagram of a quick-release structure for a screen printing squeegee;

[0013] Figure 2 for Figure 1 A schematic diagram of the internal structure of a quick-release squeegee for a screen printing machine;

[0014] The following are the labeling elements in the figure:

[0015] 1. Screen printing machine body; 2. Screen plate; 3. Squeegee; 31. Connecting column; 32. Connecting frame; 33. Fixing frame; 331. Fixing plate; 332. Ball frame; 34. Sliding sleeve; 341. Abutting protrusion; 342. Trigger block; 35. Spring; 36. Anti-slip rubber; 37. Positioning bead; 38. Blade assembly; 381. Positioning groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Specific implementation examples:

[0018] like Figure 1 As shown, a quick-release structure for a screen printing squeegee for a screen printing machine includes a screen printing machine body 1, a screen printing plate 2 mounted on the screen printing machine body 1, and a squeegee 3 mounted on the screen printing machine body 1, with the squeegee 3 mounted above the screen printing plate 2.

[0019] The screen printing machine body 1 is existing technology. It includes a two-axis motion mechanism, which can control the movement of the squeegee 3 to achieve its operation. In specific operation, the wafer is located below the screen plate 2. After the prepared wafer and screen are precisely aligned, the two-axis motion mechanism controls the squeegee 3 to squeeze the ink through the screen mesh onto the wafer surface. The specific working principle is existing technology and will not be described in detail here.

[0020] like Figure 2 As shown, the scraper 3 includes a connecting post 31, which is fixedly connected to the screen printing machine body 1. A connecting frame 32 is installed on the connecting post 31, a fixing frame 33 is installed on the connecting frame 32, a sliding sleeve 34 is slidably installed on the fixing frame 33, a ball frame 332 is installed on the fixing frame 33, a positioning bead 37 is installed on the ball frame 332, and a blade assembly 38 is slidably installed inside the sliding sleeve 34.

[0021] The squeegee 3 is a detachable squeegee 3. The connecting post 31 is fixedly connected to the screen printing machine body 1. Its connecting frame 32 is the main connecting structure for installing the squeegee 3 onto the screen printing machine body 1. When the sliding sleeve 34 slides towards the fixed frame 33, the positioning bead 37 can be loosened to a certain extent on the ball frame 332. Then, the blade assembly 38 is inserted into the sliding sleeve 34. The sliding sleeve 34 slides in the opposite direction on the fixed frame 33. The sliding sleeve 34 presses the positioning bead 37 onto the ball frame 332 and presses the blade assembly 38, thereby fixing the blade assembly 38 in a tight position. The fixed frame 33 is fixed and can achieve the function of limiting the range and distance of movement of the sliding sleeve 34. The sliding sleeve 34 is fitted onto the fixed frame 33. The specific fastening principle of this process is as follows.

[0022] A trigger block 342 is installed on the inner surface of the sliding sleeve 34, and the lower surface of the trigger block 342 is in close contact with the surface 37 of the positioning bead;

[0023] When the sliding sleeve 34 slides towards the fixed frame 33, the trigger block 342 leaves the surface of the positioning bead 37, allowing the positioning bead 37 to enter the empty groove inside the sliding sleeve 34. Therefore, the positioning bead 37 can be loose to some extent. When the sliding sleeve 34 slides in the opposite direction on the fixed frame 33, the trigger block 342 re-presses the positioning bead 37 and exerts a certain clamping force on the positioning bead 37. The protruding surface of the positioning bead 37 below the ball frame 332 will press the blade assembly 38 to prevent it from moving, thereby completing the clamping and fixing.

[0024] When the positioning bead 37 presses the blade assembly 38, inaccurate positioning and unreliable pressing may occur, allowing it to slide. Therefore, the blade assembly 38 is provided with a positioning groove 381.

[0025] The positioning groove 381 is located at the junction with the positioning bead 37 and is triangular in shape. When the positioning bead 37 presses against the blade assembly 38, the two inclined sides of the triangular groove can squeeze the surface of the positioning bead 37 to complete the pressing and positioning.

[0026] The beveled edge of the trigger block 342 is chamfered;

[0027] The chamfer setting allows the trigger block 342 to more easily engage with the positioning bead 37, making the structure more stable during operation;

[0028] When the sliding sleeve 34 slides to clamp the blade assembly 38, it may become loose, resulting in the blade assembly 38 not being installed securely. Therefore, a fixing plate 331 is provided on the fixing frame 33. Several sets of springs 35 are installed in the fixing plate 331. An abutment protrusion 341 is provided on the inner surface of the sliding sleeve 34. The springs 35 are fixedly connected to the abutment protrusion 341.

[0029] When the sliding sleeve 34 presses against the blade assembly 38, that is, when the sliding sleeve 34 slides in the opposite direction to the fixing bracket 33, the spring 35 pushes the abutment protrusion 341, that is, the spring 35 can provide an elastic force to the sliding sleeve 34, thereby increasing the fastening force of the sliding sleeve 34 on the blade assembly 38. At the same time, after the blade assembly 38 is removed, the spring 35 pulls the abutment protrusion 341, which can make the sliding sleeve 34 quickly return to its pre-operation state. Figure 2 As shown, the spring 35 is disposed on the rear surface of the sliding sleeve 34 and on both sides of the rear surface, and its maximum range of motion is the contact between the rear surface of the sliding sleeve 34 and the fixed plate 331.

[0030] Anti-slip rubber 36 is installed on the sliding sleeve 34;

[0031] The anti-slip rubber 36 is used to increase the friction between the operator's hand and the sliding sleeve 34 when the operator slides the sleeve 34, making it easier to use;

[0032] In summary, by the operator sliding the sliding sleeve 34 towards the fixed plate 331, the trigger block 342 is moved away from the surface of the positioning bead 37, allowing the positioning bead 37 to have some looseness on the ball frame 332. Then, the blade assembly 38 is inserted into the sliding sleeve 34, and the sliding sleeve 34 is slid in the opposite direction on the fixed frame 33. The sliding sleeve 34 presses the positioning bead 37 onto the ball frame 332 and presses the blade assembly 38, thus firmly fixing the blade assembly 38 in place. This process can be completed by simply sliding the sliding sleeve 34 to disassemble and install the blade assembly 38, thereby achieving the effect of quick installation and disassembly of the squeegee 3 in the screen printing machine.

[0033] The above description is merely a preferred embodiment of this application. The scope of protection of this application is not limited to the above embodiments. All technical solutions within this concept are within the scope of protection of this application. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this application should also be considered within the scope of protection of this application.

Claims

1. A printing squeegee quick release structure for a screen printing machine, comprising a screen printing machine body (1), characterized in that: A screen printing plate (2) is installed on the screen printing machine body (1), and a squeegee (3) is installed on the screen printing machine body (1), with the squeegee (3) installed above the screen printing plate (2); The scraper (3) includes a connecting post (31), which is fixedly connected to the screen printing machine body (1). A connecting frame (32) is installed on the connecting post (31), a fixing frame (33) is installed on the connecting frame (32), a sliding sleeve (34) is slidably installed on the fixing frame (33), a ball frame (332) is installed on the fixing frame (33), a positioning bead (37) is installed on the ball frame (332), and a blade assembly (38) is slidably installed inside the sliding sleeve (34).

2. The quick release structure of a printing squeegee for a screen printing machine according to claim 1, characterized in that: A trigger block (342) is installed on the inner surface of the sliding sleeve (34), and the lower surface of the trigger block (342) is in close contact with the surface of the positioning bead (37).

3. The quick release structure of a printing squeegee for a screen printing machine according to claim 1, wherein: The blade assembly (38) is provided with a positioning groove (381).

4. The quick release structure of a printing squeegee for a screen printing machine according to claim 2, wherein: The trigger block (342) has a chamfered edge.

5. The quick release structure of a printing squeegee for a screen printing machine according to claim 1, wherein: The fixing frame (33) is provided with a fixing plate (331), and several sets of springs (35) are installed inside the fixing plate (331). The inner surface of the sliding sleeve (34) is provided with an abutment protrusion (341), and the springs (35) are fixedly connected to the abutment protrusion (341).

6. The quick-release structure for a printing squeegee in a screen printing machine according to claim 1, characterized in that: Anti-slip rubber (36) is installed on the sliding sleeve (34).

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