Flip chip material returning air knife frame

Abstract

The utility model provides a kind of flip chip material returning air knife frame, comprising: array installation base is set on the left and right sides of conveyer between the discharge port of blanking machine and reflow soldering equipment by symmetry;Guide block is clamped in the middle of installation base top;One side of sliding block mounting bracket is clamped in the top of one side of guide block by bolt connection, and the other side bottom of sliding block mounting bracket is connected with air knife, when using, according to the specification of substrate conveyed by conveyer and chip attached therewith, first loosen No. 1 bolt, control sliding block mounting bracket to move up and down along guide groove, adjust air knife and substrate on conveyer to required distance after locking No. 1 bolt, loosen No. 2 bolt at the same time, rotate air knife to make mounting rod rotate along adjustment circular hole axis, change the angle between air outlet extension line in air knife and chip on substrate to make airflow better adhere to chip surface, improve the accuracy and reliability of air knife rejection.

Description

Technical Field

[0001] This utility model relates to the field of chip testing, and in particular to the field of chip ejection technology, specifically a flip-chip ejection air knife holder. Background Technology

[0002] In existing SMT processes, the air knife module is integrated into the unloading machine's outlet, making it impossible to adjust its angle and position. It cannot be freely adjusted according to the chip. For example, for chips with relatively flat surfaces, a more vertical blowing angle may be required to ensure that the airflow can evenly cover the entire chip surface and effectively blow defective chips off the substrate. For some larger chips or chips with special surface structures, the angle of the air knife may need to be adjusted according to their shape so that the airflow can better fit the chip surface, improving the accuracy and reliability of rejection. Summary of the Invention

[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a flip-chip ejector air knife holder to solve the difficulties of the prior art.

[0004] To achieve the above and other related objectives, this utility model provides an inverted patch ejector air knife holder, comprising:

[0005] Mounting base 1, the mounting base 1 is provided with an array, the array of mounting base 1 is symmetrically arranged on the left and right sides of the conveyor between the discharge port of the feeding machine and the reflow soldering equipment by bolt connection;

[0006] Guide block 2, which is engaged at the top center of the mounting base 1;

[0007] The slider mounting bracket 3 is bolted to the top of the guide block 2 on one side, and the bottom of the other side of the slider mounting bracket 3 is bolted to the air knife 4.

[0008] According to the preferred embodiment, the mounting base 1 has an embedded square groove 11 at the center of its top, and a threaded hole 12 is formed at the bottom of the embedded square groove 11.

[0009] According to the preferred embodiment, the bottom of the guide block 2 is engaged in the embedded square groove 11 and connected to the mounting base 1 by bolts.

[0010] According to the preferred embodiment, an elongated adjustment hole 21 is provided at the center of the top of the guide block 2, and a guide groove 22 is provided at the center of one side of the guide block 2, with the bottom of the guide groove 22 communicating with the elongated adjustment hole 21.

[0011] According to the preferred embodiment, the slider mounting bracket 3 is L-shaped, and one side of the slider mounting bracket 3 is engaged in the guide groove 22.

[0012] According to the preferred embodiment, a No. 1 bolt 23 is inserted into the elongated adjustment hole 21, and the No. 1 bolt 23 passes through the elongated adjustment hole 21 and is connected to the guide block 2.

[0013] According to the preferred embodiment, a locking groove 31 is provided in the center of the end face of the slider mounting bracket 3 away from the guide block 2, and an adjustment round hole 32 is provided at the bottom of the locking groove 31. A second threaded hole 33 is provided on the side of the slider mounting bracket 3 away from the guide block 2. The bottom of the second threaded hole 33 extends downward through the locking groove 31, and a second bolt 34 is inserted into the second threaded hole 33.

[0014] According to the preferred embodiment, an installation rod 35 is inserted through the center of the adjustment hole 32. A No. 3 threaded hole 36 is opened on the side of the installation rod 35 away from the guide block 2. An air knife 4 is bolted to the bottom of the side of the installation rod 35 away from the guide block 2. An air inlet pipe 41 is opened at the center of the top of the air knife 4. An inclined air outlet surface 43 is opened on the bottom side of the air knife 4. An air outlet 42 is opened on the air outlet surface 43.

[0015] This utility model adopts a mounting base, guide block, and slider mounting bracket. In use, according to the specifications of the substrate conveyed by the conveyor and the chip to be mounted thereon, first loosen the No. 1 bolt, control the slider mounting bracket to move up and down along the guide groove, adjust the air knife and the substrate on the conveyor to the required distance, and then tighten the No. 1 bolt. At the same time, loosen the No. 2 bolt, swing the air knife to make the mounting rod rotate along the central axis of the adjustment hole, change the angle between the extension line of the air outlet in the air knife and the chip on the substrate, so that the airflow can better fit the chip surface, improve the accuracy and reliability of air knife rejection.

[0016] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings, so as to facilitate an understanding of the features and advantages of the present invention. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0018] Figure 2 This is a front view of the present invention.

[0019] Figure 3 The diagram shown is an enlarged three-dimensional structural diagram of the mounting base in this utility model;

[0020] Figure 4 The diagram shown is an enlarged three-dimensional structural schematic of the guide block in this utility model.

[0021] Figure 5 The diagram shown is an enlarged three-dimensional structural schematic of the slider mounting bracket in this utility model.

[0022] Figure 6 The diagram shown is an enlarged schematic of the structure of the adjustment hole in this utility model.

[0023] Label Explanation

[0024] 1. Mounting base; 11. Embedded square groove; 12. No. 1 threaded hole;

[0025] 2. Guide block; 21. Elongated adjustment hole; 22. Guide groove; 23. No. 1 bolt;

[0026] 3. Slider mounting bracket; 31. Locking groove; 32. Adjusting round hole; 33. No. 2 threaded hole; 34. No. 2 bolt; 35. Mounting rod; 36. No. 3 threaded hole;

[0027] 4. Air knife; 41. Air inlet duct; 42. Air outlet; 43. Air outlet surface. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of protection of this utility model may have fewer components, have other components not shown in the drawings, different components, components arranged differently, or components with different connections, etc. Furthermore, two or more components shown in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0030] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, “an” or “a” and similar terms do not necessarily indicate a quantity limitation. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0031] This utility model proposes an inverted patch ejection air knife holder for use in air knife fixture design. The structure of the mounting base 1, guide block 2, and slider mounting bracket 3 is particularly suitable for improving the accuracy of airflow blown by the air knife on substrates of different specifications by adjusting the distance between the air knife 4 and the substrate on the conveyor, and the angle between the extension line of the air knife outlet and the substrate.

[0032] In general, the inverted patch ejector air knife holder proposed in this utility model mainly includes: a mounting base 1, a guide block 2, and a slider mounting bracket 3. (See also...) Figure 1 It shows the arrangement of the mounting base 1, guide block 2, and slider mounting bracket 3.

[0033] Overall, this utility model modifies the air knife module, which is currently installed on the discharge port of the unloading machine, onto the conveyor between the discharge port of the unloading machine and the reflow soldering equipment. During use, depending on the specifications of the substrate being transported by the conveyor and the chip to be mounted thereon, first loosen bolt 23, control the slider mounting bracket 3 to move up and down along the guide groove 22, adjust the air knife 4 to the required distance from the substrate on the conveyor, and then tighten bolt 23. Simultaneously, loosen bolt 34, and rotate the air knife 4 so that the mounting rod 35 rotates along the central axis of the adjusting hole 32. This changes the angle between the extended line of the air outlet 42 in the air knife 4 and the chip on the substrate, allowing the airflow to better adhere to the chip surface, thus improving the accuracy and reliability of the air knife 4 in chip removal.

[0034] The aforementioned mounting base 1 is provided with an array of mounting bases 1, which are symmetrically arranged on the left and right sides of the conveyor between the discharge port of the feeding machine and the reflow soldering equipment by bolt connection. The function of the mounting base 1 is to serve as a stable foundation for the entire device. It is fixed to the conveyor by symmetrical arrangement. The top center of the mounting base 1 is provided with an embedded square groove 11, and the bottom of the embedded square groove 11 is provided with a No. 1 threaded hole 12. The cooperation between the embedded square groove 11 and the bottom of the guide block 2 provides initial positioning, which has the advantage of ensuring the stability and basic centering of the device.

[0035] The aforementioned guide block 2 is fitted at the top center of the mounting base 1, and the bottom of the guide block 2 is fitted into the embedded square groove 11 and connected to the mounting base 1 by bolts. An elongated adjustment hole 21 is opened at the top center of the guide block 2, and a guide groove 22 is opened at the center of one side of the guide block 2. The bottom of the guide groove 22 communicates with the elongated adjustment hole 21. A first bolt 23 is inserted into the elongated adjustment hole 21 and is connected to the guide block 2. The guide block 2 is the core of the adjustment function. Its elongated adjustment hole 21 and the first bolt 23 cooperate to allow the slider mounting bracket 3 and the air knife 4 to slide horizontally within a certain range, so as to realize the horizontal position adjustment of the air knife 4.

[0036] The aforementioned slider mounting bracket 3 is bolted to the top of the guide block 2 on one side, and the air knife 4 is bolted to the bottom of the other side of the slider mounting bracket 3. The slider mounting bracket 3 is L-shaped, with one side of it locked in the guide groove 22. The L-shape of the slider mounting bracket 3 extends the installation point of the air knife to a suitable working position and forms a vertical constraint with the guide block, which ensures structural stability. A locking groove 31 is provided in the center of the end face of the slider mounting bracket 3 away from the guide block 2, and an adjustment hole 32 is provided at the bottom of the locking groove 31. A second threaded hole 33 is provided on the side of the slider mounting bracket 3 away from the guide block 2. The bottom of the perforated hole 33 extends downward through the locking groove 31. The second threaded hole 33 is fitted with a second bolt 34. The locking groove 31 and the second bolt 34 on the slider mounting bracket 3 are used to lock the position after the angle is adjusted. This is to prevent the position from shifting during operation. The center of the adjustment hole 32 is fitted with a mounting rod 35. The mounting rod 35 has a third threaded hole 36 on the side away from the guide block 2. The bottom of the mounting rod 35 is connected to the air knife 4 by bolts. The top center of the air knife 4 has an air inlet pipe 41. The bottom side of the air knife 4 has an inclined air outlet surface 43. The air outlet surface 43 has an air outlet 42.

[0037] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A flip-chip ejector air knife holder, characterized in that, include: Mounting base (1), the mounting base (1) is provided with an array, the array of mounting bases (1) are symmetrically arranged on the left and right sides of the conveyor between the discharge port of the feeding machine and the reflow soldering equipment by bolt connection; Guide block (2), which is engaged at the center of the top of the mounting base (1); A slider mounting bracket (3) is bolted to the top of the guide block (2) on one side, and a wind knife (4) is bolted to the bottom of the other side of the slider mounting bracket (3).

2. The flip-chip ejector air knife holder according to claim 1, characterized in that, The mounting base (1) has an embedded square groove (11) at the top center, and a threaded hole (12) is provided at the bottom of the embedded square groove (11).

3. The flip-chip ejector air knife holder according to claim 2, characterized in that, The bottom of the guide block (2) is fitted into the embedded square groove (11) and connected to the mounting base (1) by bolts.

4. The flip-chip ejector air knife holder according to claim 3, characterized in that, The guide block (2) has an elongated adjustment hole (21) at the top center and a guide groove (22) at the center of one side. The bottom of the guide groove (22) is connected to the elongated adjustment hole (21).

5. The flip-chip ejector air knife holder according to claim 4, characterized in that, The slider mounting bracket (3) is L-shaped, and one side of the slider mounting bracket (3) is locked in the guide groove (22).

6. The flip-chip ejector air knife holder according to claim 5, characterized in that, A No. 1 bolt (23) is inserted into the elongated adjustment hole (21), and the No. 1 bolt (23) passes through the elongated adjustment hole (21) and is connected to the guide block (2).

7. The flip-chip ejector air knife holder according to claim 6, characterized in that, The slider mounting bracket (3) has a locking groove (31) in the center of the end face away from the guide block (2). The bottom of the locking groove (31) has an adjustment hole (32). The slider mounting bracket (3) has a second threaded hole (33) in the side away from the guide block (2). The bottom of the second threaded hole (33) extends downward through the locking groove (31). A second bolt (34) is inserted into the second threaded hole (33).

8. The flip-chip ejector air knife holder according to claim 7, characterized in that, An installation rod (35) is inserted through the center of the adjustment hole (32). A No. 3 threaded hole (36) is opened on the side of the installation rod (35) away from the guide block (2). An air knife (4) is installed at the bottom of the side of the installation rod (35) away from the guide block (2) by bolts. An air inlet pipe (41) is opened at the center of the top of the air knife (4). An inclined air outlet surface (43) is opened on the bottom side of the air knife (4). An air outlet (42) is opened on the air outlet surface (43).

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