Microporous screen equipment for solder balls
By designing a micro-hole screening device for hot balls including multiple sets of screening mechanisms and collection components, the problem of only single screening in traditional equipment is solved, and multi-level screening and efficient hot balls are realized Screening improves productivity and accuracy of results.
Patent Information
- Application Number
- CN202420790097.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-04-17
AI Technical Summary
Traditional screening equipment can only perform a single screening operation, which leads to the need to replace screening multiple times during the production of hot balls for multi-level screening, which increases the complexity of the operation and the cumbersomeness of the screening process and reduces efficiency.
Design a micro-hole screening equipment for hot balls, including a rack, multiple sets of screening mechanisms and material collection components. The screening mechanism consists of a screen box, a screen mesh and a vibration component. The number of screen mesh mesh increases from top to bottom along the height of the frame to achieve multi-level screening.
The multi-level screening of the hot balls is realized at one time, avoiding the tedious process of replacing screens multiple times in traditional equipment, greatly improving screening efficiency, reducing operational complexity, and ensuring the accuracy of screening results and reliability.
Smart Images
Figure CN222447201U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of screen equipment, and in particular to a microporous screen equipment for solder balls. Background Art
[0002] With the rapid development of the semiconductor industry, the demand for packaging materials is increasing, especially the semiconductor solder balls manufactured by electroforming, which have become the key materials in the packaging field due to their high precision, high purity and excellent conductivity. The manufacturing process of electroforming semiconductor solder balls mainly includes steps such as electrolytic deposition, annealing and surface treatment. In this process, the quality and performance of the solder balls depend largely on the precise control of their size and shape; to achieve this goal, microporous screen equipment plays a vital role in the screening process of solder balls.
[0003] In the solder ball production process, screening is a crucial link, which determines the final quality and production efficiency of the solder balls. However, traditional screening equipment often has limitations in design, which means that it can only perform a single screening operation. This means that in order to achieve multi-level screening needs, operators have to replace the screen and perform repeated screening processes. This not only increases the complexity of the operation, but also makes the entire screening process cumbersome and inefficient, so it needs to be improved. Utility Model Content
[0004] In order to solve the problem of multi-level screening requirements for solder balls, the present application provides a microporous screen device for solder balls.
[0005] The microporous screen device for solder balls provided in this application adopts the following technical solution:
[0006] A microporous screen device for solder balls comprises a frame, a hopper for discharging materials is arranged on the top of the frame, a plurality of screening mechanisms are arranged on the frame, and the plurality of screening mechanisms are arranged in sequence along the height direction of the frame, each of the screening mechanisms comprises a screen box, a screen and a vibration assembly for driving the screen box to vibrate, the screen box is hingedly arranged on the frame, the screen box is arranged obliquely along the length direction of the frame, the screen boxes in several of the screening mechanisms are arranged alternately and obliquely, each of the screen boxes is a hollow structure, the screen is connected in the screen box, the mesh number of the screens in several of the screening mechanisms increases in sequence from top to bottom along the height direction of the frame, and a material receiving assembly for receiving materials is provided at the conveying end of any of the screen boxes.
[0007] Since traditional screening equipment often has limitations in design, it can only perform a single screening operation, which means that in order to achieve multi-level screening needs, the operator has to change the screen and perform repeated screening processes, which not only increases the complexity of the operation, but also makes the entire screening process cumbersome and inefficient; by adopting the above technical solution, a hopper is installed on the frame, and multiple groups of screening mechanisms are installed in sequence along the height direction of the frame. The screening mechanism includes a screen box, a screen and a vibration component, and the material receiving component is installed at the end of the screen box; when the solder balls need to be screened, starting from the hopper, the solder ball raw material is put into the top of the frame, and the solder ball raw material flows into the first group of screening mechanisms evenly and stably, and the vibration component works. This vibration causes the solder balls to roll and jump continuously on the screen, and after the first group of screening mechanisms initially After the first screening, the solder balls are divided into two parts according to different sizes. One part is the larger solder balls, which are left in the screen box and finally collected by the collecting assembly. The other part is the solder balls that meet the requirements. They continue to flow downward through the screen and enter the second group of screening mechanisms for more refined screening. The solder balls of different sizes are screened and collected through multiple groups of screening mechanisms in turn. The settings of the screening mechanism and the collecting assembly can help to achieve multi-level screening of the solder balls at one time, avoiding the tedious process of multiple replacement of the screen and repeated screening in traditional equipment, greatly improving the screening efficiency and reducing the complexity of operation. At the same time, the increase in the number of screen meshes in the screening mechanism enables the solder balls to be accurately divided into different size segments. The progressive screening method ensures the accuracy and reliability of the screening results.
[0008] Optionally, the vibration assembly includes a servo motor, a rotating shaft, two cams and two connecting rods. The servo motor is arranged on a frame, the output end of the servo motor is connected to the rotating shaft, the rotating shaft is rotatably connected to the frame, the two cams are connected to the rotating shaft, the two cams are respectively arranged on both sides of the width direction of the screen box, the two connecting rods correspond to the two cams one by one, one end of the connecting rod is hinged to the cam, and the other end of the connecting rod is connected to the side wall of the screen box.
[0009] By adopting the above technical scheme, the vibration component includes a servo motor, a rotating shaft, two cams and two connecting rods; the servo motor is the power source of the vibration component, and when the servo motor works, the servo motor drives the rotating shaft to rotate, and the two cams rotate accordingly. Due to the hinged relationship between the connecting rod and the cam, the rotational motion on the cam is converted into the reciprocating motion of the connecting rod, so that the connecting rod drives the screen box to vibrate, and the tin balls continuously roll and jump on the screen, thereby achieving the purpose of screening; through the arrangement of the servo motor, the rotating shaft, the two cams and the two connecting rods, power can be provided continuously and stably to ensure that the screen box vibrates continuously and stably, which can effectively avoid blockage and jamming during the screening process and improve the screening efficiency.
[0010] Optionally, a small gear is arranged on the output end of the servo motor, a large gear is arranged on the rotating shaft, and the small gear is meshed with the large gear.
[0011] By adopting the above technical solution, the pinion is installed on the servo motor, the pinion is meshed with the large gear, and the large gear is installed on the rotating shaft; through the setting of the pinion and the large gear, the gear ratio between the pinion and the large gear determines the reduction ratio of the transmission, increases the output torque, ensures the effective screening process, and realizes smooth transmission.
[0012] Optionally, the material receiving assembly includes a material receiving box, which is detachably arranged at the conveying end of the screen box, and a material receiving slot for accommodating materials is provided on the top of the material receiving box.
[0013] By adopting the above technical scheme, the material receiving component includes a material receiving box, and a material receiving slot is provided on the material receiving box; after the preliminary screening by the screening mechanism, the tin balls are divided into two parts according to different sizes, one part is the larger tin balls, which are retained in the screen box, and finally enter the material receiving box through the material receiving slot for collection during the screening process, and the other part is the tin balls that meet the requirements, which continue to flow downward through the screen, and the tin balls enter the second group of screening mechanisms for more refined screening; through the setting of the material receiving box and the material receiving slot, the larger tin balls can smoothly enter the material receiving box from the screen box through the material receiving slot, thereby realizing the effective collection of the screen residue materials, facilitating the subsequent processing or management of the materials, optimizing the screening process, and improving the overall screening efficiency.
[0014] Optionally, a blocking assembly for blocking is provided at the conveying end of any of the screen boxes, and the blocking assembly includes a baffle and a telescopic cylinder, the baffle is arranged on a side of the screen box close to the material receiving box, and the telescopic cylinder is connected to the baffle.
[0015] By adopting the above technical solution, a blocking component is installed at the conveying end of the screen box, and the blocking component includes a baffle and a telescopic cylinder; during the screening process of the screening mechanism, the baffle is blocked between the screen box and the receiving box to ensure normal screening of the solder balls. When it is detected that the screening process is about to end, that is, there are fewer solder balls remaining in the screen box, and most of the solder balls have passed through the screen and flowed into the next screening mechanism or have been collected in the receiving box, the telescopic cylinder is actuated, and the telescopic cylinder drives the baffle to move away, and the larger solder balls continue to enter the receiving box; through the setting of the baffle and the telescopic cylinder, it is ensured that during the screening process, the solder balls that can enter the next group of screening mechanisms can remain in the screen box and will not enter the receiving box in advance, thereby ensuring the accuracy of the screening and reducing the possibility of confusion or misclassification of the solder balls after screening.
[0016] Optionally, the frame is provided with an adjusting mechanism for controlling the discharge speed of the hopper, the adjusting mechanism includes two arc-shaped angle plates, the two arc-shaped angle plates are connected to the frame, and the two arc-shaped angle plates are respectively arranged on both sides of the hopper, each of the arc-shaped angle plates is provided with a plurality of through holes, and the plurality of through holes are sequentially opened along the arc direction of the arc-shaped angle plate, both sides of the hopper are provided with fixing bolts fixed to the arc-shaped angle plates, and the adjusting mechanism also includes a hinge for hingedly mounting the hopper.
[0017] By adopting the above technical solution, the adjustment mechanism is installed on the frame, and the adjustment mechanism includes two arc-shaped angle plates and a hinge; when it is necessary to adjust the hopper discharge speed, loosen the fixing bolts to release the fixed state between the hopper and the arc-shaped angle plates on both sides, and the operator manually or mechanically changes the angle between the hopper and the arc-shaped angle plates on both sides. After the adjustment is completed, the fixing bolts are passed through the corresponding through holes for fixing; the arrangement of the two arc-shaped angle plates and the hinge helps to achieve precise control of the hopper discharge speed, which greatly enhances the adaptability of the equipment to different materials and screening requirements, which not only improves the screening efficiency, but also enhances the flexibility and adaptability of the equipment.
[0018] Optionally, the hinge comprises a plurality of hinges, and the plurality of hinges are arranged on a frame, one end of the hinge is connected to the frame, and the other end of the hinge is connected to the hopper.
[0019] By adopting the above technical solution, the articulated parts include a plurality of hinges, and the frame and the hopper are hinged by the hinges; by setting the plurality of hinges, it is ensured that the connection between the hopper and the frame has a certain stability, which reduces the possibility of accidental shaking or falling off of the hopper during operation, and ensures the smooth progress of the screening process.
[0020] Optionally, a support plate is provided at the bottom of each of the arc-shaped angle plates, and the support plate is connected to the frame.
[0021] By adopting the above technical solution, the support plate is integrally formed at the bottom of the arc-shaped angle plate; through the setting of the support plate, the weight and force from the hopper and the arc-shaped angle plate can be effectively dispersed and borne, reducing the possibility of deformation or displacement of the arc-shaped angle plate, enhancing the structural strength of the entire adjustment mechanism, and extending its service life.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] The settings of the screening mechanism and the material receiving assembly can help to complete multi-level screening of solder balls at one time, avoiding the tedious process of multiple replacement of screens and repeated screening in traditional equipment, greatly improving the screening efficiency and reducing the complexity of operation. At the same time, the increasing number of screen meshes in the screening mechanism enables the solder balls to be accurately divided into different size segments, and the progressive screening method ensures the accuracy and reliability of the screening results.
[0024] By setting the receiving box and receiving slot, the larger solder balls can smoothly pass from the screen box through the receiving slot into the receiving box, thus realizing the effective collection of the screened materials, facilitating the subsequent processing or management of the materials, optimizing the screening process, and improving the overall screening efficiency;
[0025] The setting of two arc-shaped angle plates and hinges helps to achieve precise control of the hopper discharge speed, greatly enhancing the adaptability of the equipment to different materials and screening requirements, which not only improves the screening efficiency, but also enhances the flexibility and adaptability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a structural schematic diagram of a microporous screen device for solder balls in an embodiment of the present application.
[0027] Figure 2 yes Figure 1 Enlarged view of part A in .
[0028] Figure 3 It is a schematic diagram of the structure of the blocking component in the embodiment of the present application.
[0029] Explanation of the reference numerals in the accompanying drawings: 1. Frame; 2. Hopper; 3. Screening mechanism; 31. Screen box; 32. Screen; 33. Vibration assembly; 331. Servo motor; 332. Rotating shaft; 333. Cam; 334. Connecting rod; 4. Material receiving assembly; 41. Material receiving box; 5. Small gear; 6. Large gear; 7. Material receiving slot; 8. Blocking assembly; 81. Baffle; 82. Telescopic cylinder; 9. Adjusting mechanism; 91. Arc angle plate; 92. Hinge; 921. Hinge; 10. Through hole; 11. Fixing bolt; 12. Support plate. DETAILED DESCRIPTION
[0030] The following is combined with Figure 1-3 This application is described in further detail.
[0031] The present application embodiment discloses a microporous screen device for solder balls. Figure 1 The microporous screen device for solder balls includes a frame 1, which is made of square steel welded together. A hopper 2 is installed on the top of the frame 1. In this embodiment, the hopper 2 is used to feed solder balls. Multiple groups of screening mechanisms 3 are installed on the frame 1, and the multiple groups of screening mechanisms 3 are installed in sequence along the height direction of the frame 1.
[0032] Reference Figure 1 and Figure 2 An adjusting mechanism 9 is installed on the frame 1, and the adjusting mechanism 9 includes two arc-shaped angle plates 91 and a hinge 92. The hinge 92 includes a plurality of hinges 921, and the plurality of hinges 921 are installed on the top of the frame 1. One end of the hinge 921 is installed on the frame 1, and the other end of the hinge 921 is installed on one side of the hopper 2, so that the hopper 2 is hinged to the frame 1 through the hinge 921, ensuring that the connection between the hopper 2 and the frame 1 has a certain stability, reducing the possibility of accidental shaking or falling off of the hopper 2 during operation, and ensuring the smooth progress of the screening process.
[0033] Reference Figure 1 and Figure 2 The two arc-shaped angle plates 91 are symmetrically arranged on both sides of the hopper 2. A support plate 12 is integrally formed at the bottom of the arc-shaped angle plate 91. In this embodiment, the support plate 12 can be installed on the frame 1 by welding or bolting, which effectively disperses and bears the weight and force from the hopper 2 and the arc-shaped angle plate 91, reduces the possibility of deformation or displacement of the arc-shaped angle plate 91, enhances the structural strength of the entire adjustment mechanism 9, and prolongs its service life.
[0034] Reference Figure 1 and Figure 2 A plurality of through holes 10 are provided on the two arc-shaped angle plates 91, and the plurality of through holes 10 are sequentially provided along the arc direction of the arc-shaped angle plates 91. Fixing bolts 11 are respectively installed on both sides of the hopper 2, and the fixing bolts 11 pass through the through holes 10 of the arc-shaped angle plates 91 and are installed on the hopper 2, so as to fix the hopper 2 and the arc-shaped angle plates 91, so as to accurately control the discharge speed of the hopper 2, thereby greatly enhancing the adaptability of the equipment to different materials and screening requirements, which not only improves the screening efficiency, but also enhances the flexibility and adaptability of the equipment.
[0035] Reference Figure 1 Each screening mechanism 3 includes a screen box 31, a screen mesh 32 and a vibration assembly 33. The screen box 31 in the uppermost screening mechanism 3 corresponds to the outlet of the hopper 2. The screen box 31 is hingedly mounted on the frame 1, and the uppermost screen box 31 is tiltedly mounted from the position of the hopper 2 on the frame 1 toward the other side of the frame 1. In this embodiment, the screen boxes 31 in multiple groups of screening mechanisms 3 are alternately tilted, ensuring that the solder balls can flow smoothly from one screen box 31 to another screen box 31. Specifically, the input end of each screen box 31 is cleverly positioned below the output end of the upper screen box 31, forming an inclined and staggered layout, optimizing the material flow path, and reducing unnecessary accumulation and delays of materials during the screening process.
[0036] Reference Figure 1The interior of the screen box 31 is a hollow structure, and the screen 32 is installed inside the screen box 31. In this embodiment, the mesh size of the screens 32 in the multiple screening mechanisms 3 increases from top to bottom in the height direction of the frame 1, ensuring that the mesh size of the upper screen 32 is larger than the mesh size of the lower screen 32.
[0037] Reference Figure 1 The vibration assembly 33 includes a servo motor 331, a rotating shaft 332, two cams 333 and two connecting rods 334. The servo motor 331 and the rotating shaft 332 are installed on one side of the width direction of the frame 1. The servo motor 331 is installed on the frame 1, and the rotating shaft 332 is rotatably installed on the frame 1 through a bearing. A small gear 5 is installed at the output end of the servo motor 331, and a large gear 6 is installed on the rotating shaft 332. The small gear 5 is meshed with the large gear 6 to realize the connection between the servo motor 331 and the rotating shaft 332.
[0038] Reference Figure 1 , the two cams 333 are mounted on the rotating shaft 332, and the two cams 333 are symmetrically arranged on both sides of the width direction of the screen box 31. The two connecting rods 334 correspond to the two cams 333 one by one. One end of each connecting rod 334 is hingedly mounted on the cam 333, and the other end of the connecting rod 334 is hingedly mounted on the side wall of the screen box 31; when the servo motor 331 is working, the servo motor 331 drives the rotating shaft 332 to rotate, and the two cams 333 rotate accordingly. Due to the hinge relationship between the connecting rod 334 and the cam 333, the rotational motion on the cam 333 is converted into the reciprocating motion of the connecting rod 334, so that the connecting rod 334 drives the screen box 31 to vibrate, and the tin balls continue to roll and jump on the screen 32, thereby achieving the purpose of screening.
[0039] Reference Figure 1 and Figure 3 A material receiving assembly 4 is installed at the conveying end (output end) of each screen box 31. The material receiving assembly 4 includes a material receiving box 41. The material receiving box 41 is detachably installed on the screen box 31. A material receiving slot 7 is opened on the top of the material receiving box 41. Large solder balls can smoothly pass through the material receiving slot 7 from the screen box 31 into the material receiving box 41, thereby realizing effective collection of screen residue materials, facilitating subsequent processing or management of materials, optimizing the screening process, and improving the overall screening efficiency.
[0040] Reference Figure 3The conveying end of the screen box 31 is also equipped with a blocking assembly 8, which includes a baffle 81 and a telescopic cylinder 82. The baffle 81 is installed on the side of the screen box 31 close to the receiving box 41, and the baffle 81 blocks the solder balls in the screen box 31. The telescopic cylinder 82 is installed on the screen box 31, and the output end of the telescopic cylinder 82 is connected to the baffle 81. During the screening process of the screening mechanism 3, the baffle 81 is blocked between the screen box 31 and the receiving box 41 to ensure the normal screening of the solder balls. When it is detected that the screening process is about to end, That is, when there are fewer solder balls remaining in the screen box 31 and most of the solder balls have passed through the screen 32 and flowed into the next screening mechanism 3 or have been collected in the receiving box 41, the telescopic cylinder 82 is actuated, and the telescopic cylinder 82 drives the baffle 81 to move away, and the larger solder balls continue to eventually enter the receiving box 41, ensuring that during the screening process, the solder balls that can enter the next group of screening mechanisms 3 can remain in the screen box 31 and will not enter the receiving box 41 in advance, thereby ensuring the accuracy of the screening and reducing the possibility of confusion or misclassification of the solder balls after screening.
[0041] The implementation principle of a microporous screen device for solder balls in the embodiment of the present application is as follows: when the solder balls need to be screened, starting from the hopper 2, the solder ball raw material is put into the top of the frame 1, and the solder ball raw material flows into the first group of screening mechanisms 3 evenly and stably. The vibration component 33 works, and this vibration makes the solder balls continuously roll and jump on the screen 32. After preliminary screening by the first group of screening mechanisms 3, the solder balls are divided into two parts according to different sizes. One part is the larger solder balls, which are left in the screen box 31 and finally collected by the collecting component 4, and the other part is the solder balls that meet the requirements, which are screened. The mesh 32 continues to flow downward, and the solder balls enter the second group of screening mechanisms 3 for more refined screening, and pass through multiple groups of screening mechanisms 3 in turn to achieve screening and collection of solder balls of different sizes; the settings of the screening mechanism 3 and the material collecting component 4 are helpful to achieve multi-level screening of the solder balls at one time, avoiding the tedious process of multiple replacement of the screen 32 and repeated screening in traditional equipment, greatly improving the screening efficiency and reducing the complexity of operation. At the same time, the increasing mesh number of the screen 32 in the screening mechanism 3 allows the solder balls to be accurately divided into different size segments, and the progressive screening method ensures the accuracy and reliability of the screening results.
[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A microporous screen device for solder balls, characterized in that: The invention comprises a frame (1), wherein a hopper (2) for discharging materials is arranged on the top of the frame (1), and a plurality of screening mechanisms (3) are arranged on the frame (1), wherein the plurality of screening mechanisms (3) are arranged in sequence along the height direction of the frame (1), and each of the screening mechanisms (3) comprises a screen box (31), a screen mesh (32), and a vibration assembly (33) for driving the screen box (31) to vibrate, wherein the screen box (31) is hingedly arranged on the frame (1), and the screen box (31) is (31) is arranged obliquely along the length direction of the frame (1), the screen boxes (31) in the plurality of screening mechanisms (3) are arranged obliquely alternately, each of the screen boxes (31) is a hollow structure, the screen (32) is connected inside the screen box (31), the mesh numbers of the screens (32) in the plurality of screening mechanisms (3) increase in sequence from top to bottom along the height direction of the frame (1), and a material receiving assembly (4) for receiving materials is provided at the conveying end of any of the screen boxes (31).
2. The microporous screen device for solder balls according to claim 1, characterized in that: The vibration assembly (33) comprises a servo motor (331), a rotating shaft (332), two cams (333) and two connecting rods (334); the servo motor (331) is arranged on a frame (1); an output end of the servo motor (331) is connected to the rotating shaft (332); the rotating shaft (332) is rotatably connected to the frame (1); the two cams (333) are both connected to the rotating shaft (332); the two cams (333) are respectively arranged on both sides of the screen box (31) in a width direction; the two connecting rods (334) correspond to the two cams (333) one by one; one end of the connecting rod (334) is hinged on the cam (333); and the other end of the connecting rod (334) is connected to a side wall of the screen box (31).
3. The microporous screen device for solder balls according to claim 2, characterized in that: A small gear (5) is arranged on the output end of the servo motor (331), a large gear (6) is arranged on the rotating shaft (332), and the small gear (5) is meshed with the large gear (6).
4. The microporous screen device for solder balls according to claim 1, characterized in that: The material receiving assembly (4) comprises a material receiving box (41), which is detachably arranged at the conveying end of the screen box (31), and a material receiving slot (7) for accommodating materials is provided on the top of the material receiving box (41).
5. The microporous screen device for solder balls according to claim 4, characterized in that: A blocking assembly (8) for blocking is provided at the conveying end of any of the screen boxes (31), and the blocking assembly (8) comprises a baffle (81) and a telescopic cylinder (82), wherein the baffle (81) is arranged on a side of the screen box (31) close to the material receiving box (41), and the telescopic cylinder (82) is connected to the baffle (81).
6. The microporous screen device for solder balls according to claim 1, characterized in that: The frame (1) is provided with an adjusting mechanism (9) for controlling the discharge speed of the hopper (2), the adjusting mechanism (9) comprising two arc angle plates (91), the two arc angle plates (91) being connected to the frame (1), and the two arc angle plates (91) being arranged on both sides of the hopper (2), each of the arc angle plates (91) being provided with a plurality of through holes (10), the plurality of through holes (10) being arranged in sequence along the arc direction of the arc angle plate (91), both sides of the hopper (2) being provided with fixing bolts (11) fixed to the arc angle plates (91), the adjusting mechanism (9) further comprising a hinge (92) for hingedly mounting the hopper (2).
7. The microporous screen device for solder balls according to claim 6, characterized in that: The hinge (92) comprises a plurality of hinges (921), wherein the plurality of hinges (921) are arranged on the frame (1), one end of the hinge (921) is connected to the frame (1), and the other end of the hinge (921) is connected to the hopper (2).
8. The microporous screen device for solder balls according to claim 6, characterized in that: A support plate (12) is provided at the bottom of each of the arc-shaped angle plates (91), and the support plate (12) is connected to the frame (1).