A dispensing machine for fingerprint recognition chip processing

Abstract

The present invention relates to the field of glue dispensing technology, and discloses a glue dispensing machine for processing fingerprint identification chips, including a bracket part, the bracket part includes a bracket body, the upper surface of the bracket body is connected to an external manipulator through a connecting rod, the lower surface of the bracket body is fixedly connected with a support plate, and a glue dispensing part, the glue dispensing part includes a shaft seat, the shaft seat is internally rotatably connected with a glue dispensing part that can be used for tilting the external chip to fill the glue. The glue dispensing machine for processing fingerprint identification chips can effectively solve the problem in the prior art that the application method of the bottom filling glue of the fingerprint chip is to apply several lines of glue around the chip, and through the innovative capillary action, the glue fills the bottom of the chip, and then heats and solidifies to form a solid filling layer, but the glue dispensing needle needs to dispense glue in sequence along the surrounding path of the chip, which leads to different diffusion ranges and times of the glue filled in the four directions, and there are problems such as thin glue in some areas and glue accumulation and overflow in some areas.

Description

Technical Field

[0001] The invention relates to the technical field of glue dispensing, and in particular to a glue dispensing machine for processing fingerprint recognition chips. Background Art

[0002] The substrate structure of a fingerprint recognition chip usually includes a circuit layer, an insulating layer, and a support layer. The circuit layer is responsible for connecting the internal circuits of the chip and transmitting signals, the insulating layer isolates and protects the circuits, and the support layer provides sufficient mechanical strength to support the entire chip structure. The function of the substrate is mainly to provide stable electrical connections and mechanical support for the fingerprint recognition chip. By optimizing the substrate structure and material selection, the performance and reliability of the chip can be further improved.

[0003] When the fingerprint chip is connected to the substrate, the chip is usually placed with the front side facing down and connected to the substrate through conductive bumps. However, there is a tendency for thermal expansion differences to occur, which will generate stress on the connection points between the two during thermal cycles. Therefore, the chip and the substrate will be filled with glue at the bottom to relieve stress fatigue at the connection points. The traditional application of bottom filling glue is to apply a few lines of glue around the chip. Through innovative capillary action, the glue fills the bottom of the chip, and then heats and solidifies to form a solid filling layer to improve the structural strength of the components and the drop resistance between the chip and the substrate. However, the glue dispensing needle needs to dispense glue in sequence along the path around the chip, which results in different diffusion ranges and times of the glue filled in the four directions, resulting in local thin glue and local glue accumulation and overflow. Summary of the invention

[0004] Technical issues solved

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a glue dispensing machine for fingerprint recognition chip processing, which can effectively solve the problem in the prior art that the application method of the bottom filling glue of the fingerprint chip is to apply several lines of glue around the chip, and through the innovative capillary action, the glue fills the bottom of the chip, and then heats and solidifies to form a solid filling layer. However, the glue dispensing needle needs to dispense glue along the surrounding path of the chip in sequence, which leads to different diffusion ranges and times of the glue filled in the four directions, resulting in the problem of thin glue in some areas and glue accumulation and overflow in some areas.

[0006] Technical Solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The present invention provides a dispensing machine for processing a fingerprint recognition chip, comprising:

[0009] A bracket part, the bracket part comprises a bracket body, the upper surface of the bracket body is connected to the external manipulator through a connecting rod, and the lower surface of the bracket body is fixedly connected with a support plate;

[0010] The glue dispensing part includes a shaft seat, the shaft seat is internally rotatably connected with a glue dispensing part that can be used for tilting and filling glue on the external chip, the glue dispensing part is provided with a driver on the side away from the shaft seat, and the shaft seat and the upper surface of the driver are fixedly connected to the lower surface of the support plate;

[0011] Among them, the shaft seat and the driver are respectively distributed on both sides of the dispensing part, and the dispensing part includes a smooth rod. The end of the smooth rod away from the driver is provided with a shaft rod rotatably connected to the inside of the shaft seat. The smooth rod is slidably connected to a reciprocating block through a sliding groove opened inside it, and the circumferential outer surface of the reciprocating block is provided with a dispensing needle connected to an external feeding system.

[0012] Furthermore, the driver includes a precision telescopic rod, the upper surface of which is fixedly connected to the lower surface of the support plate, the output end of the precision telescopic rod is sleeved with a rotating seat connected to its end surface, and the end of the smooth rod away from the shaft rod is fixedly connected to a rotating block rotatably connected to the inside of the rotating seat.

[0013] Furthermore, the output end of the precision telescopic rod sequentially passes through the rotating seat and the rotating block and extends into the slide slot, and the output end of the precision telescopic rod is rotationally connected to the outer end of the reciprocating block.

[0014] Furthermore, an open groove is provided inside the shaft seat, and an inner connecting rod connected to the circumferential outer surface of the shaft rod is provided in the space enclosed by the open groove. The inner connecting rod is slidably connected to an external connecting tube on its circumferential outer surface and a universal ball shell is installed thereon, and a universal ball rod is rotatably connected inside the universal ball shell.

[0015] Furthermore, a special-shaped hole is opened inside the support plate, the top end of the universal ball rod passes through the special-shaped hole and is fixedly connected to a lifting plate, the circumferential outer surface of the universal ball rod is sleeved with a tooth plate, and the tooth plate is located between the support plate and the lifting plate, the upper surface of the support plate is rotatably connected to the lower surface of the tooth plate through a circular track, the upper surface of the tooth plate is fixedly connected to a lower inclined block, and the lower surface of the lifting plate is fixedly connected to an upper inclined block that fits tightly with the inclined surface of the lower inclined block.

[0016] Furthermore, the support plate is provided with a strong spring via an L-shaped frame arranged on its upper surface, and the bottom end of the strong spring is connected to the upper surface of the lifting plate.

[0017] Furthermore, the outer surface of the support plate is slidably connected to a gear rod meshing with the outer circumferential surface of the gear plate through a fixed seat, the upper surface of the support plate is fixedly connected to a gear meshing with the teeth of the gear rod, and the lower surface of the support plate is provided with a driving unit that drives with the gear.

[0018] Beneficial Effects

[0019] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0020] The present invention is provided with a dispensing part, and the dispensing part is provided with four groups in total, and the four groups of dispensing parts are evenly distributed in four directions on the lower surface of the support plate. When the dispensing needle on the dispensing part moves to the junction of the substrate and the chip, the precision telescopic rod on the driver is started, and its output end drives the reciprocating block on the dispensing part to slide along the inner wall of the slide groove at a uniform speed, and drives the dispensing needle to slide synchronously at a uniform speed. Since the dispensing part is provided with four groups in total, the corresponding four groups of dispensing needles can simultaneously follow the corresponding "straight line motion trajectory" to quickly complete the filling of glue, which can not only realize the synchronous filling of glue in four directions of the chip, but also greatly shorten the chip dispensing time and improve the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of a three-dimensional multi-angle structure of an embodiment of the present invention;

[0024] Figure 3 It is a structural schematic diagram of a three-dimensional partial cross-section of the shaft seat, the dispensing component, the driver and the support plate according to an embodiment of the present invention;

[0025] Figure 4 For the embodiment of the present invention Figure 3 A schematic diagram of the structure with a partial enlargement at the center;

[0026] Figure 5 It is a schematic diagram of the structure of the universal ball bar, the lifting plate, the tooth plate, the strong spring and the support plate being three-dimensionally separated according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure in which the lifting plate and the tooth plate are three-dimensionally separated according to an embodiment of the present invention;

[0028] Figure 7 It is a three-dimensional structural schematic diagram of the shaft seat, the dispensing component and the driver according to an embodiment of the present invention;

[0029] Figure 8It is a schematic structural diagram of the three-dimensional partial separation of the dispensing parts in an embodiment of the present invention.

[0030] The numbers in the figure represent: 1. bracket part; 11. bracket body; 12. support plate; 121. special-shaped hole; 122. strong spring; 123. gear rod; 124. gear; 125. driving unit; 2. dispensing part; 21. shaft seat; 211. open groove; 212. inner connecting rod; 213. external connecting pipe; 214. universal ball shell; 215. universal ball rod; 216. lifting plate; 2161. upper inclined block; 217. gear plate; 2171. lower inclined block; 22. dispensing part; 221. smooth rod; 222. shaft rod; 2221. slide groove; 2222. rotating block; 223. reciprocating block; 224. dispensing needle; 23. driver; 231. precision telescopic rod; 232. rotating seat. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. 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.

[0032] The present invention will be further described below in conjunction with the embodiments.

[0033] Example:

[0034] See also Figure 1-Figure 8 The present invention provides a technical solution: a dispensing machine for fingerprint recognition chip processing, comprising:

[0035] The bracket part 1 includes a bracket body 11, the upper surface of the bracket body 11 is connected to the external manipulator through a connecting rod, and the lower surface of the bracket body 11 is fixedly connected with a support plate 12;

[0036] The glue dispensing part 2 includes a shaft seat 21, the shaft seat 21 is internally rotatably connected with a glue dispensing part 22 that can be used for tilting and filling glue on the external chip, and a driver 23 is arranged on the side of the glue dispensing part 22 away from the shaft seat 21, and the upper surfaces of the shaft seat 21 and the driver 23 are fixedly connected to the lower surface of the support plate 12;

[0037] Among them, the shaft seat 21 and the driver 23 are respectively distributed on both sides of the dispensing component 22, and the dispensing component 22 includes a smooth rod 221. The end of the smooth rod 221 away from the driver 23 is provided with an axis rod 222 which is rotatably connected to the inside of the shaft seat 21. The smooth rod 221 is slidably connected to a reciprocating block 223 through a slide groove 2221 opened therein, and the circumferential outer surface of the reciprocating block 223 is provided with a dispensing needle 224 connected to an external feeding system.

[0038] The driver 23 includes a precision telescopic rod 231, the upper surface of the precision telescopic rod 231 is fixedly connected to the lower surface of the support plate 12, the output end of the precision telescopic rod 231 is sleeved with a rotating seat 232 connected to its end surface, and the end of the smooth rod 221 away from the shaft rod 222 is fixedly connected to a rotating block 2222 that is rotatably connected to the inside of the rotating seat 232.

[0039] The output end of the precision telescopic rod 231 passes through the rotating seat 232 and the rotating block 2222 in sequence and extends into the slide slot 2221 . The output end of the precision telescopic rod 231 is rotatably connected to the outer end of the reciprocating block 223 .

[0040] An open groove 211 is provided inside the shaft seat 21, and an inner connecting rod 212 connected to the circumferential outer surface of the shaft rod 222 is provided in the space enclosed by the open groove 211. The inner connecting rod 212 is slidably connected to an outer tube 213 on the circumferential outer surface thereof and a universal ball shell 214 is installed thereon, and a universal ball rod 215 is rotatably connected inside the universal ball shell 214.

[0041] A special-shaped hole 121 is opened inside the support plate 12, and the top end of the universal ball rod 215 passes through the special-shaped hole 121 and is fixedly connected to the lifting plate 216. A tooth plate 217 is sleeved on the circumferential outer surface of the universal ball rod 215, and the tooth plate 217 is located between the support plate 12 and the lifting plate 216. The upper surface of the support plate 12 is rotatably connected to the lower surface of the tooth plate 217 through a circular track. A lower inclined block 2171 is fixedly connected to the upper surface of the tooth plate 217, and an upper inclined block 2161 that fits tightly with the inclined surface of the lower inclined block 2171 is fixedly connected to the lower surface of the lifting plate 216.

[0042] The support plate 12 is provided with a strong spring 122 via an L-shaped frame arranged on the upper surface thereof, and the bottom end of the strong spring 122 is connected to the upper surface of the lifting plate 216 .

[0043] The outer surface of the support plate 12 is slidably connected to a gear rod 123 meshing with the outer circumferential surface of the gear plate 217 through a fixed seat, the upper surface of the support plate 12 is fixedly connected to a gear 124 meshing with the teeth of the gear rod 123, and the lower surface of the support plate 12 is provided with a driving unit 125 that drives with the gear 124.

[0044] refer to Figure 1-8The chip is connected to the substrate through conductive bumps, but there is a tendency for thermal expansion differences to occur, so the chip and substrate are filled with glue at the bottom to relieve stress fatigue at the connection point. However, the glue dispensing needle needs to dispense glue along the path around the chip in sequence, which results in different diffusion ranges and times of the glue filled in the four directions, resulting in local thin glue and local glue accumulation and overflow.

[0045] In order to overcome the above-mentioned defects, the present invention designs a dispensing machine for processing fingerprint recognition chips.

[0046] In practical applications, the present application has four groups of dispensing parts 2, and the four groups of dispensing parts 2 are evenly distributed on the lower surface of the support plate 12. The external conveying system transfers the substrate and chip to be processed to the bottom of the dispensing part 2. Then, the external manipulator drives the support body 11, the support plate 12 and the dispensing part 2 to move synchronously toward the chip and substrate, and uses laser to measure the height (laser height measurement is to measure the height from the product through the direct light emitted by the sensor. This method can accurately compensate for product deviations and ensure the accuracy of the dispensing position; for different types of products, laser height measurement also has a variety of measurement methods, such as single-point height measurement, two-point height measurement and three-point height measurement, to meet different dispensing process requirements).

[0047] When the glue dispensing needle 224 on the glue dispensing part 2 moves to the junction of the substrate and the chip, the precision telescopic rod 231 on the driver 23 is started, and its output end drives the reciprocating block 223 on the glue dispensing part 22 to slide at a uniform speed along the inner wall of the slide groove 2221, driving the glue dispensing needle 224 to slide at a uniform speed synchronously. At the same time, the external feeding system is connected to the glue dispensing needle 224 through a hose to fill the junction of the substrate and the chip with glue. Since the glue dispensing part 2 is provided with four groups in total, the corresponding four groups of glue dispensing needles 224 can simultaneously follow the corresponding "straight line motion trajectory" to quickly complete the filling of glue, which can not only realize the synchronous filling of glue in the four directions of the chip (used to avoid the problem of glue dispensing in sequence along the surrounding paths, resulting in different diffusion ranges and times of the glue filled in the four directions, causing local glue to be thin, and local glue to accumulate and overflow), but also greatly shorten the chip dispensing time and improve the processing efficiency.

[0048] It is worth mentioning that in order to improve the stability of the dispensing needle 224 during the dispensing process, in the present application, one end of the smooth rod 221 is rotatably installed through the rotating block 2222 and the rotating seat 232, and the other end of the smooth rod 221 is rotatably installed inside the shaft seat 21 through the shaft rod 222. Under the limiting action of the inner rod 212, the positions of the shaft rod 222, the smooth rod 221 and the rotating block 2222 will be constant and immobile, and then the reciprocating block 223 and the dispensing needle 224 will not be able to rotate freely, and can only slide back and forth along the inner wall of the slide groove 2221 under the action of the precision telescopic rod 231.

[0049] It is worth noting that during the dispensing process of the dispensing needle 224, the position of the dispensing needle 224 needs to be accurately adjusted. The present invention can achieve synchronous and accurate adjustment of four groups of dispensing needles 224:

[0050] Specifically, under the control of PLC, the driving unit 125 is first started, and the internal servo motor drives the gear 124 to rotate slowly through the gearbox, and drives the four sets of gear rods 123 to slide slowly along the fixed seats on the outer surface of the corresponding support plate 12. Taking one set of gear rods 123 as an example, when the gear rod 123 slides slowly, it drives the gear plate 217 to rotate slowly around the circular track on the upper surface of the support plate 12, and drives the lower inclined block 2171 to rotate slowly synchronously. Since the inclined surface of the lower inclined block 2171 is always tightly fitted with the inclined surface of the upper inclined block 2161, when the lower inclined block 2171 rotates slowly, it drives the lifting plate 216 to move up and down slowly (under the elastic force of the strong spring 122, the inclined surface of the lower inclined block 2171 is always tightly fitted with the inclined surface of the upper inclined block 2161, and the strong spring 122 is always in a compressed state), and drives the universal ball bar 215 to move up and down slowly along the inner wall of the special-shaped hole 121. Since the ball part of the universal ball rod 215 is engaged with the universal ball shell 214, the two can be combined into a "universal rotating rod". The slow up and down movement of the universal ball rod 215 can drive the universal ball shell 214, the external tube 213 and the internal rod 212 to rotate slowly at a small angle in the space surrounded by the open groove 211, drive the shaft rod 222 to rotate around the inside of the shaft seat 21, drive the rotating block 2222 to rotate around the inside of the rotating seat 232, drive the smooth rod 221, the reciprocating block 223 and the dispensing needle 224 to rotate slowly and at a small angle synchronously (the output end of the precision telescopic rod 231 can be connected by rotating around the end face of the reciprocating block 223), thereby realizing synchronous and precise adjustment of the dispensing range of the four groups of dispensing needles 224.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dispensing machine for fingerprint recognition chip processing, characterized in that: include: A bracket part (1), the bracket part (1) comprising a bracket body (11), the upper surface of the bracket body (11) being connected to an external manipulator via a connecting rod, and the lower surface of the bracket body (11) being fixedly connected to a support plate (12); A glue dispensing unit (2), the glue dispensing unit (2) comprising a shaft seat (21), the shaft seat (21) being internally rotatably connected with a glue dispensing member (22) that can be used to fill glue on an external chip in an inclined manner, the glue dispensing member (22) being provided with a driver (23) on a side away from the shaft seat (21), the upper surfaces of the shaft seat (21) and the driver (23) being fixedly connected to the lower surface of the support plate (12); The shaft seat (21) and the driver (23) are respectively distributed on both sides of the dispensing component (22), and the dispensing component (22) includes a smooth rod (221), and an end of the smooth rod (221) away from the driver (23) is provided with an axial rod (222) rotatably connected to the inside of the shaft seat (21), and the smooth rod (221) is slidably connected to a reciprocating block (223) through a sliding groove (2221) provided therein, and the circumferential outer surface of the reciprocating block (223) is provided with a dispensing needle (224) connected to an external feeding system; The shaft seat (21) is provided with an open groove (211) inside, and an inner connecting rod (212) connected to the outer circumferential surface of the shaft rod (222) is arranged in the space surrounded by the open groove (211). The inner connecting rod (212) is installed with a universal ball shell (214) through an external pipe (213) connected to the outer circumferential surface of the inner connecting rod (212) by sliding connection, and the inner part of the universal ball shell (214) is rotatably connected with a universal ball rod (215). The support plate (12) is provided with a special-shaped hole (121). The top end of the universal ball rod (215) passes through the special-shaped hole (121) and is fixedly connected with a lifting plate (216). The outer circumferential surface of the universal ball rod (215) is sleeved with a tooth plate (217), and the tooth plate (217) is located between the support plate (12) and the lifting plate (216). The upper surface of the support plate (12) is connected to the lifting plate (216). The support plate (12) is rotatably connected to the lower surface of the toothed plate (217) through an annular track; the upper surface of the toothed plate (217) is fixedly connected to a lower inclined block (2171); the lower surface of the lifting plate (216) is fixedly connected to an upper inclined block (2161) that is tightly fitted with the inclined surface of the lower inclined block (2171); the support plate (12) is provided with a strong spring (122) through an L-shaped frame arranged on its upper surface, and the bottom end of the strong spring (122) is connected to the upper surface of the lifting plate (216); the outer surface of the support plate (12) is slidably connected to a toothed rod (123) that meshes with the outer circumferential surface of the toothed plate (217) through a fixed seat; the upper surface of the support plate (12) is fixedly connected to a gear (124) that meshes with the teeth of the geared rod (123); and the lower surface of the support plate (12) is provided with a driving unit (125) that drives the gear (124).

2. The dispensing machine for fingerprint identification chip processing according to claim 1, characterized in that: The driver (23) comprises a precision telescopic rod (231), the upper surface of the precision telescopic rod (231) is fixedly connected to the lower surface of the support plate (12), the output end of the precision telescopic rod (231) is sleeved with a rotating seat (232) connected to its end surface, and the end of the smooth rod (221) away from the shaft rod (222) is fixedly connected to a rotating block (2222) rotatably connected to the inside of the rotating seat (232).

3. The dispensing machine for fingerprint identification chip processing according to claim 2, characterized in that: The output end of the precision telescopic rod (231) passes through the rotating seat (232) and the rotating block (2222) in sequence and extends into the slide groove (2221). The output end of the precision telescopic rod (231) is rotatably connected to the outer end of the reciprocating block (223).

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