Scraper head and glue scraping equipment

Abstract

The utility model provides a scraper head and glue scraping equipment, and relates to the technical field of semiconductor equipment. The scraper head comprises a first surface and a second surface, and the first surface is provided with an extrusion protruding block and a glue inlet hole. The extrusion protruding block is used for controlling glue to enter the glue inlet hole. The second surface is adjacent to the first surface, and the second surface is provided with a groove. And the glue inlet hole is communicated with the groove. The glue scraping quality and the glue scraping efficiency are favorably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor equipment, in particular to a scraper head and a glue scraping device. Background Art

[0002] The inventors have found that with the rapid development of the semiconductor industry, solder paste printers are frequently used. The working principle of the solder paste printer is to first fix the circuit board to be printed on the printing positioning table, and then move the scraper on the solder paste machine back and forth on the steel mesh, and cover the solder paste on the specific pads of the circuit board through the openings of the steel mesh to complete the printing work. The traditional process of printing solder paste is completed by a printing machine, which requires the use of a steel mesh and cannot be printed in a small area. If the dispensing mode is used for solder paste dispensing, due to the high viscosity and particulate matter of the solder paste, it is easy to cause the solder paste colloid head to be blocked, thereby affecting the dispensing quality. Utility Model Content

[0003] The utility model aims to provide a scraper head and a glue scraping device, which can control the colloid to enter the scraper head and move along the groove, thereby facilitating improving the glue dispensing quality and glue dispensing efficiency.

[0004] The embodiment of the utility model is achieved as follows:

[0005] In a first aspect, the utility model provides a scraper head, comprising:

[0006] A first surface, wherein an extrusion protrusion and a glue inlet hole are provided on the first surface; the extrusion protrusion is used to control the colloid to enter the glue inlet hole;

[0007] The second surface is arranged adjacent to the first surface, and the second surface is provided with a groove; the glue inlet hole is connected with the groove.

[0008] In an optional embodiment, the second surface is inclined relative to the first surface.

[0009] In an optional embodiment, the width of the groove is greater than the particle diameter of the colloid.

[0010] In an optional embodiment, the cross-section of the groove is arc-shaped.

[0011] In an optional embodiment, a third surface is further included, and the third surface is respectively arranged adjacent to the first surface and the second surface, and the third surface is inclined relative to the second surface.

[0012] In an optional embodiment, the groove is arranged along the second surface and extends from the junction of the second surface and the first surface to the junction of the second surface and the third surface.

[0013] In an optional embodiment, the third surface is provided with a mounting portion, and the mounting portion is used to connect to the dispensing motion mechanism.

[0014] In a second aspect, the utility model provides a glue scraping device, comprising a glue dispensing motion mechanism and a scraper head as described in any one of the aforementioned embodiments, wherein the scraper head is connected to the glue dispensing motion mechanism.

[0015] In an optional embodiment, the dispensing motion mechanism is provided with a first driving member, a colloid tube and a control valve, the control valve is arranged opposite to the extrusion protrusion, the colloid tube is connected to the glue inlet hole; the first driving member is used to realize the relative movement of the control valve and the extrusion protrusion;

[0016] The control valve is used to control the opening of the colloid tube so that the colloid enters the colloid inlet hole.

[0017] In an optional embodiment, a second driving member is further included, and the second driving member drives the dispensing motion mechanism or the scraper head to move.

[0018] The beneficial effects of the embodiments of the utility model include:

[0019] The scraper head provided by the embodiment of the utility model can control the colloid to enter the scraper head by extruding the protrusion. After entering the scraper head, the colloid can move along the groove, thereby improving the fluidity of the colloid and the uniformity of dispensing, thereby improving the quality and efficiency of dispensing.

[0020] The glue scraping device provided by the embodiment of the utility model includes the above-mentioned scraper head, which has a simple structure and is easy to operate, and is conducive to improving the glue dispensing quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic structural diagram of a scraper head provided by an embodiment of the utility model from a first viewing angle;

[0023] Figure 2 A schematic structural diagram of a scraper head provided by an embodiment of the utility model from a second viewing angle;

[0024] Figure 3 A schematic structural diagram of a scraper head provided by an embodiment of the utility model from a third viewing angle;

[0025] Figure 4 A schematic diagram of the connection structure between the scraper head and the glue dispensing motion mechanism provided in an embodiment of the utility model.

[0026] Icons: 100 - scraper head; 101 - first surface; 102 - second surface; 103 - third surface; 110 - extrusion bump; 120 - glue inlet hole; 130 - groove; 140 - mounting portion; 210 - glue dispensing movement mechanism; 220 - colloid tube; 230 - control valve. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply 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 on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0031] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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.

[0033] With the rapid development of the semiconductor industry, solder paste printers are frequently used. The working principle of the solder paste printer is to first fix the circuit board to be printed on the printing positioning table, and then the scraper on the solder paste machine moves back and forth on the steel mesh, and the solder paste passes through the openings of the steel mesh and covers the specific pads of the circuit board to complete the printing work. The traditional process of printing solder paste is completed by a printing machine, which requires the use of a steel mesh and cannot be printed in a small area. If the dispensing mode is used for solder paste dispensing, due to the high viscosity and particulate matter of the solder paste, it is easy to cause the solder paste colloid head to be blocked, thereby affecting the dispensing quality.

[0034] Traditional scrapers use the lifting mechanism of the machine to lift and press the solder paste on the steel mesh to achieve printing. The front and rear scrapers are designed separately without a tool base. This scraper structure makes it difficult to limit the scraper horizontally, which can easily cause the scraper angle to deviate too much during printing, affecting the amount of solder paste, resulting in insufficient printing. The amount of solder paste refers to the amount of tin that leaks out of the steel mesh.

[0035] In order to overcome at least one defect of the prior art, the present embodiment provides a scraper head, which can control the colloid to enter the scraper head and move along the groove, which is beneficial to improving the uniformity of glue output and improving the dispensing quality and efficiency.

[0036] Please refer to Figures 1 to 3 The present embodiment provides a scraper head 100, including a first surface 101 and a second surface 102, wherein the first surface 101 is provided with an extrusion protrusion 110 and a glue inlet hole 120. The extrusion protrusion 110 is used to control the colloid to enter the glue inlet hole 120. The second surface 102 is disposed adjacent to the first surface 101, and the second surface 102 is provided with a groove 130. The glue inlet hole 120 is connected to the groove 130. The scraper head 100 is conducive to improving the glue brushing quality and glue brushing efficiency.

[0037] The second surface 102 is inclined relative to the first surface 101. The angle formed by the first surface 101 and the second surface 102 can be flexibly set, and can be 5 degrees to 80 degrees, such as 20 degrees, 30 degrees, 45 degrees, 60 degrees or 75 degrees, etc., which is not specifically limited here.

[0038] Optionally, the width of the groove 130 is greater than the particle diameter of the colloid. This arrangement is conducive to reducing the risk of the colloid blocking the groove 130, improving the fluidity of the colloid in the groove 130, and improving the uniformity of the glue output and the quality of the glue application.

[0039] Optionally, the cross section of the groove 130 is arc-shaped, such as semicircular. The arc-shaped groove 130 is conducive to improving the fluidity of the colloid in the groove 130, improving the uniformity of the glue discharge and the quality of the glue application. Of course, in some embodiments, the cross-sectional shape of the groove 130 can be flexibly designed, such as being set to a U-shape, a V-shaped trapezoid or other arbitrary shapes, which are not specifically limited here.

[0040] It is understood that if the cross-sectional shape of the groove 130 is an arc shape, the diameter of the groove 130 should be larger than the particle diameter of the colloid. In this way, the fluidity of the bottom colloid can be increased when the colloid is squeezed.

[0041] Optionally, the scraper head 100 further includes a third surface 103, which is disposed adjacent to the first surface 101 and the second surface 102, respectively, and the third surface 103 is disposed obliquely relative to the second surface 102. In this embodiment, the cross section of the scraper head 100 is triangular, that is, the first surface 101, the second surface 102 and the third surface 103 are connected end to end.

[0042] Optionally, the groove 130 is arranged along the second surface 102 and extends from the junction of the second surface 102 and the first surface 101 to the junction of the second surface 102 and the third surface 103. This can provide sufficient space for the colloid to flow and avoid colloid blockage.

[0043] Combination Figure 4 Optionally, the third surface 103 is provided with a mounting portion 140, which is used to connect with the dispensing motion mechanism 210 so as to fix the scraper head 100 on the dispensing motion mechanism 210. The mounting portion 140 can be a mounting block or a mounting slot, or a slot structure formed by multiple mounting blocks. The scraper head 100 and the dispensing motion mechanism 210 are connected by a snap connection, which is convenient to install, reliable in structure, and high in assembly and disassembly efficiency.

[0044] In this embodiment, a slot is formed on the mounting portion 140, and the shape and size of the slot match the shape and size of the corresponding structure on the dispensing motion mechanism 210. Of course, in some other embodiments, the dispensing motion mechanism 210 and the scraper head 100 can also be welded, bonded, bolted, threaded, etc., which is not specifically limited here.

[0045] The material of the scraper head 100 can be selected from high molecular polymers such as rubber, silicone, or metal.

[0046] The embodiment of the utility model provides a glue scraping device, which includes a glue dispensing motion mechanism 210 and the scraper head 100 as mentioned above, and the scraper head 100 and the glue dispensing motion mechanism 210 are fixedly connected.

[0047] Optionally, the dispensing motion mechanism 210 is provided with a first driving member, a colloid tube 220 and a control valve 230, the control valve 230 is arranged opposite to the extrusion protrusion 110, and the colloid tube 220 is connected to the glue inlet hole 120; the first driving member is used to realize the relative movement of the control valve 230 and the extrusion protrusion 110. The control valve 230 is used to control the opening of the colloid tube 220 to allow the colloid to enter the glue inlet hole 120.

[0048] It can be understood that the first driving member can drive the dispensing motion mechanism 210 to descend, so that the control valve 230 moves toward the direction close to the extrusion protrusion 110, until the extrusion protrusion 110 touches and applies force to the control valve 230, so that the control valve 230 opens, and the colloid in the colloid tube 220 enters the glue inlet hole 120 and flows along the groove 130. The scraper head 100 extrude the colloid at the end of the groove 130 to apply glue, and the thickness of the glue is uniform. Alternatively, the first driving member can be connected to the scraper head 100, or connected to the extrusion protrusion 110, and can drive the extrusion protrusion 110 to move toward the direction close to the control valve 230, until the extrusion protrusion 110 touches and applies force to the control valve 230, so that the control valve 230 opens, and the colloid in the colloid tube 220 enters the glue inlet hole 120 and flows along the groove 130. Alternatively, the first driving member can drive the extrusion protrusion 110 and the control valve 230 to move respectively, so that the extrusion protrusion 110 and the control valve 230 are close to each other until they are squeezed against each other, so as to open the control valve 230. If the extrusion protrusion 110 does not squeeze the control valve 230, the control valve 230 is in a closed state, and the colloid in the colloid tube 220 will not enter the colloid inlet hole 120.

[0049] The first driving member may be a servo motor, a driving motor or a cylinder, etc., which is not specifically limited here.

[0050] Optionally, the glue scraping device further includes a second driving member, which drives the glue dispensing motion mechanism 210 or the scraper head 100 to move. In this embodiment, the second driving member drives the glue dispensing motion mechanism 210 to move laterally to achieve glue brushing. Of course, the second driving member can drive the scraper head 100 to move laterally to achieve glue brushing.

[0051] The second driving member can be a servo motor, a driving motor or a cylinder, etc., which is not specifically limited here.

[0052] The working principle of the scraper head 100 and the scraping device provided by the embodiment of the utility model is as follows:

[0053] The scraper head 100 is fixed to the dispensing motion mechanism 210 of the machine platform by using the card slot of the mounting part 140. When the first driving member of the dispensing motion mechanism 210 moves downward, the extrusion protrusion 110 touches and squeezes the control valve 230 in the colloid tube 220, and the control valve 230 opens. The colloid enters the scraper head 100 along the glue inlet hole 120, and flows along the groove 130 of the second surface 102 to the adjacent part of the second surface 102 and the third surface 103. At this time, the second driving member drives the dispensing motion mechanism 210 to move horizontally to scrape the glue, completing the colloid scraping action.

[0054] The scraper head 100 and the scraping device provided by the embodiment of the utility model have the following beneficial effects, including:

[0055] The scraper head 100 provided by the embodiment of the utility model, the extrusion protrusion 110 can control the colloid to enter the scraper head 100, and the colloid can move along the groove 130 after entering the scraper head 100. The groove 130 is arranged along the inclined second surface 102. The diameter or width of the groove 130 is greater than the particle diameter of the colloid, which is beneficial to improve the fluidity of the colloid and the uniformity of dispensing, and improve the dispensing quality and dispensing efficiency.

[0056] The glue scraping device provided in the embodiment of the utility model includes a glue dispensing motion mechanism 210 and the above-mentioned scraper head 100, which has a simple structure and is easy to operate, and is conducive to improving the glue dispensing quality and efficiency.

[0057] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A scraper head, characterized in that: include: A first surface, wherein an extrusion protrusion and a glue inlet hole are provided on the first surface; the extrusion protrusion is used to control the colloid to enter the glue inlet hole; The second surface is arranged adjacent to the first surface, and the second surface is provided with a groove; the glue inlet hole is connected with the groove.

2. The scraper head according to claim 1, characterized in that: The second surface is inclined relative to the first surface.

3. The scraper head according to claim 1, characterized in that: The width of the groove is greater than the particle diameter of the colloid.

4. The scraper head according to claim 1, characterized in that: The cross section of the groove is arc-shaped.

5. The scraper head according to claim 1, characterized in that: It also includes a third surface, which is respectively arranged adjacent to the first surface and the second surface, and is inclined relative to the second surface.

6. The scraper head according to claim 5, characterized in that: The groove is arranged along the second surface and extends from a junction of the second surface and the first surface to a junction of the second surface and the third surface.

7. The scraper head according to claim 5, characterized in that: The third surface is provided with a mounting portion, and the mounting portion is used to be connected to the dispensing motion mechanism.

8. A scraping device, characterized in that: It comprises a glue dispensing motion mechanism and a scraper head as described in any one of claims 1 to 7, wherein the scraper head is connected to the glue dispensing motion mechanism.

9. The scraping device according to claim 8, characterized in that: The dispensing motion mechanism is provided with a first driving member, a colloid tube and a control valve, the control valve is arranged opposite to the extrusion convex block, and the colloid tube is connected to the glue inlet hole; the first driving member is used to realize the relative movement of the control valve and the extrusion convex block; The control valve is used to control the opening of the colloid tube so that the colloid enters the colloid inlet hole.

10. The scraping device according to claim 9, characterized in that: It also includes a second driving member, which drives the dispensing motion mechanism or the scraper head to move.

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