Solder ball production raw material adding device

Abstract

The utility model relates to a solder ball production raw material adding device which comprises a feeding hopper, the bottom end of the feeding hopper is fixedly communicated with a discharging pipe, first supporting blocks are fixedly connected to the positions, close to the edge of the top end, of the two sides of the feeding hopper, a supporting frame is erected at the top ends of the first supporting blocks, and a screening assembly is arranged at the top end of the supporting frame. The screening component comprises a spring telescopic rod, a roller, a sliding block, a screen frame, a first connecting rod, a first driving mechanism and an eccentric wheel; the eccentric wheel is fixedly mounted on an output shaft of the first driving mechanism; according to the tin powder screening device, the first driving mechanism and the eccentric wheel are arranged and matched with the screen frame and the first connecting rod, tin powder can be directly screened after being poured into the screen frame, the screened tin powder can rapidly fall into the feeding hopper, screening and feeding are carried out at the same time, the feeding step is reduced, and the feeding efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solder ball raw material feeding devices, in particular to a solder ball production raw material adding device. Background Art

[0002] Solder balls are small spherical objects made of tin, commonly used in crafts, art, and decoration. They are also widely used in industry, particularly in electronic packaging technologies, such as BGA (ball grid array) packaging, where they replace pins in IC component packaging structures, meeting the requirements of electrical and mechanical connections.

[0003] When producing solder balls, it is generally necessary to first screen out the raw tin powder, and then pour the screened tin powder into a feeding device, and then inject the tin powder into a smelting furnace through the feeding device to melt it into liquid, and finally pump the liquid tin into the solder ball machine to make solder balls. However, most of the current feeding devices are unable to screen out the tin powder and can only feed after the tin powder is screened out, which greatly reduces the feeding efficiency. Therefore, it is necessary to design a solder ball production raw material adding device that can perform screening and feeding at the same time to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a raw material adding device for solder ball production, which is used to solve the problems raised by the above-mentioned background technology.

[0005] The utility model provides a raw material adding device for solder ball production, including a feed hopper, the bottom end of the feed hopper is fixedly connected to a discharge pipe, first support blocks are fixedly connected to positions near the top edge on both sides of the feed hopper, a support frame is mounted on the top of the first support block, a screening assembly is provided on the top of the support frame, the screening assembly includes a spring telescopic rod, a roller, a sliding block, a screen frame, a first connecting rod, a first drive mechanism and an eccentric wheel, and the eccentric wheel is fixedly installed on the output shaft of the first drive mechanism; a stirring assembly is provided on the inner wall of the feed hopper near the bottom end of the screen frame, and the stirring assembly includes a second drive mechanism, a third connecting rod and a stirring blade.

[0006] As a further improvement of the present invention, the screening assembly also includes a movable hole, a connecting plate, a limit block, a fixed ring, a second support block, a limit plate second connecting rod and a connecting block. The movable hole is opened through the central position of the top of the support frame, one end of the first connecting rod is connected to the bottom end of the sliding block and the other end passes through the movable hole and is fixed to the top of the connecting plate.

[0007] As a further improvement of the present invention, the bottom end surface of the connecting plate is fixedly connected to the screen frame, the fixing ring is fixedly connected to the outer surface of the first connecting rod, the connecting block is fixedly connected to both sides of the top edge of the screen frame, and the second connecting rod is fixedly connected between the fixing ring and the connecting block.

[0008] As a further improvement of the present invention, the second support block is fixedly connected to the back of the support frame near the sliding block, the limit plate is fixedly connected to the top side of the support frame, the limit block is fixedly connected to the outer surface of the first connecting rod located in the movable hole, and the size of the limit block is adapted to the movable hole.

[0009] As a further improvement of the present invention, the first driving mechanism is fixedly mounted on the top surface of the second supporting block, and one end of the spring telescopic rod is connected to the limiting plate and the other end is connected to the sliding block.

[0010] As a further improvement of the present invention, there are four rollers and they are all installed at the four corners of the bottom end of the sliding block. The sliding block slides on the top surface of the support frame through the rollers. One side of the eccentric wheel contacts the sliding block. A movable groove is provided at the position corresponding to the eccentric wheel on the top surface of the support frame.

[0011] As a further improvement of the present invention, the stirring assembly further includes a rotating rod and a connecting column, one end of the rotating rod is connected to the output shaft of the second driving mechanism, and the connecting column is fixedly connected to the end of the rotating rod away from the second driving mechanism.

[0012] As a further improvement of the present invention, there are several stirring blades and they are all fixedly connected to the outer surface of the connecting column. The third connecting rod is cross-shaped and fixedly connected to the inner wall of the feed hopper near the bottom of the screen frame. The second driving mechanism is fixedly connected and installed in the middle of the bottom end of the third connecting rod.

[0013] As a further improvement of the present invention, mounting plates are fixedly connected to the bottom ends of the first support blocks on both sides of the feed hopper, and mounting holes are provided on the two mounting plates near the bottom ends.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The utility model provides a first driving mechanism and an eccentric wheel, cooperates with the screen frame and the first connecting rod, so that the tin powder can be directly screened after being poured into the screen frame, and the screened tin powder quickly falls into the feed hopper, so that screening and feeding are carried out simultaneously, reducing the feeding steps and greatly improving the feeding efficiency;

[0016] 2. At the same time, the second driving mechanism and the third connecting rod are used in conjunction with the rotating rod and the stirring blade, so that when the tin powder is fed, the stirring blade can be rotated to effectively prevent the tin powder at the discharge pipe from being blocked, making the feeding smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional front view structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall three-dimensional cross-sectional structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the overall front view and cross-sectional structure of the utility model.

[0021] In the figure: 01, feed hopper; 011, mounting plate; 012, discharge pipe; 02, first support block; 021, support frame; 022, limit plate; 023, spring telescopic rod; 024, roller; 025, sliding block; 026, first drive mechanism; 027, eccentric wheel; 028, second support block; 03, first connecting rod; 031, fixing ring; 032, second connecting rod; 033, connecting plate; 034, connecting block; 035, screen frame; 036, movable hole; 037, limit block; 04, third connecting rod; 041, second drive mechanism; 042, rotating rod; 043, connecting column; 044, stirring blade. DETAILED DESCRIPTION

[0022] The following diagrams illustrate various embodiments of the present invention. For clarity, many physical details will be included in the following description. However, it should be understood that these physical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these physical details are not essential. Furthermore, to simplify the illustrations, some commonly used structures and components are depicted in a simplified schematic manner.

[0023] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0024] In the description of this technology, it should also be noted that, unless otherwise specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this technology based on the specific circumstances.

[0025] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0026] See also Figure 1-3 The utility model includes a feed hopper 01, the bottom end of the feed hopper 01 is fixedly connected to a discharge pipe 012, and first support blocks 02 are fixedly connected to the positions near the top edge on both sides of the feed hopper 01, a support frame 021 is mounted on the top of the first support block 02, and a screening assembly is provided on the top of the support frame 021, and the screening assembly includes a spring telescopic rod 023, a roller 024, a sliding block 025, a screen frame 035, a first connecting rod 03, a first driving mechanism 026 and an eccentric wheel 027, and the eccentric wheel 027 is fixedly installed on the output shaft of the first driving mechanism 026; a stirring assembly is provided on the inner wall of the feed hopper 01 near the bottom end of the screen frame 035, and the stirring assembly includes a second driving mechanism 041, a third connecting rod 04 and a stirring blade 044.

[0027] See also Figure 1 and Figure 2 In this embodiment, in order to better feed and screen the tin powder, thereby reducing the feeding steps and improving the feeding efficiency, the screening assembly also includes a movable hole 036, a connecting plate 033, a limit block 037, a fixing ring 031, a second support block 028, a limit plate 022, a second connecting rod 032 and a connecting block 034. The movable hole 036 is opened through the center position of the top of the support frame 021, one end of the first connecting rod 03 is connected to the bottom end of the sliding block 025 and the other end passes through the movable hole 036 and is fixedly connected to the top end of the connecting plate 033. The first connecting rod 03 passes through the sliding block 025 and protrudes from the top surface of the sliding block 025 and is fixed by a nut. The portion of the first connecting rod 03 protruding from the sliding block 025 is threaded.

[0028] The bottom end surface of the connecting disk 033 is connected and fixed to the screen frame 035. The fixing ring 031 is fixedly connected to the outer surface of the first connecting rod 03. The connecting block 034 is fixedly connected to both sides of the top edge of the screen frame 035. The second connecting rod 032 is fixedly connected between the fixing ring 031 and the connecting block 034. The screen frame 035 is disc-shaped and has a diameter smaller than the feed hopper 01. The bottom end surface of the screen frame 035 is evenly provided with a plurality of sieve holes with a diameter of 2 mm.

[0029] The second support block 028 is fixedly connected to the back of the support frame 021 near the sliding block 025. The limit plate 022 is fixedly connected to one side of the top of the support frame 021. The limit block 037 is fixedly connected to the outer surface of the first connecting rod 03 located in the movable hole 036. The size of the limit block 037 is adapted to the movable hole 036. The inside of the movable hole 036 reserves movable space at both ends of the limit block 037 to facilitate the left and right movement of the limit block 037.

[0030] The first driving mechanism 026 is fixedly mounted on the top surface of the second supporting block 028. One end of the spring telescopic rod 023 is connected to the limit plate 022 and the other end is connected to the sliding block 025. The first driving mechanism 026 is a stepping motor.

[0031] There are four rollers 024 and they are all installed at the four corners of the bottom end of the sliding block 025. The sliding block 025 slides on the top surface of the support frame 021 through the rollers 024. One side of the eccentric wheel 027 contacts the sliding block 025. A movable groove is opened at the position corresponding to the top surface of the support frame 021 and the eccentric wheel 027.

[0032] When feeding is required, the tin powder is poured into the screen frame 035, and then the first driving mechanism 026 is started. The eccentric wheel 027 is driven to rotate by the first driving mechanism 026, and the sliding block 025 is pushed by the eccentric wheel 027 to slide left and right on the top surface of the support frame 021 through the roller 024, and at the same time, the spring telescopic rod 023 is squeezed and rebounded, so that the first connecting rod 03 connected to the sliding block 025 drives the screen frame 035 to move left and right through the connecting plate 033, so as to screen out the tin powder in the screen frame 035. When the sliding block 025 moves left and right, the limit block 037 moves left and right in the movable hole 036 at the same time. Through the restriction of the limit block 037 and the spring telescopic rod 023, the sliding block 025 can better keep the moving trajectory roughly unchanged during movement.

[0033] See also Figure 2 and Figure 3 It should be noted that, in order to better stir the tin powder and prevent it from clogging the discharge pipe 012, the stirring assembly further includes a rotating rod 042 and a connecting column 043. One end of the rotating rod 042 is connected to the output shaft of the second driving mechanism 041. The connecting column 043 is fixedly connected to the end of the rotating rod 042 away from the second driving mechanism 041. The second driving mechanism 041 is a stirring motor.

[0034] There are several stirring blades 044 and they are all fixedly connected to the outer surface of the connecting column 043. The third connecting rod 04 is cross-shaped and fixedly connected to the inner wall of the feed hopper 01 near the bottom of the screen frame 035. The second driving mechanism 041 is fixedly connected and installed in the middle of the bottom end of the third connecting rod 04.

[0035] The feed hopper 01 is fixedly connected to the bottom of the first support block 02 on both sides with mounting plates 011. Mounting holes are provided near the bottom of the two mounting plates 011. There are four stirring blades 044 distributed in a cross shape on the outer surface of the connecting column 043. The feed hopper 01 is connected to the solder ball machine through the mounting plates 011 and the mounting holes.

[0036] When the tin powder is sieved out of the sieve frame 035 and falls into the feed hopper 01, the second driving mechanism 041 is started, and the second driving mechanism 041 drives the rotating rod 042, the connecting column 043 and the stirring blade 044 to rotate, thereby stirring the fallen tin powder to prevent the tin powder from clogging the discharge pipe 012, and finally the tin powder is discharged from the discharge pipe 012 into the smelting furnace for tin liquid production.

[0037] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be included within the scope of the claims of the present invention.

Claims

1. A raw material adding device for solder ball production, comprising a feed hopper (01), characterized in that: The bottom end of the feed hopper (01) is fixedly connected to a discharge pipe (012), and the first support blocks (02) are fixedly connected to the positions near the top edge on both sides of the feed hopper (01), and a support frame (021) is mounted on the top of the first support block (02), and a screening assembly is provided on the top of the support frame (021), and the screening assembly includes a spring telescopic rod (023), a roller (024), a sliding block (025), a screen frame (035), a first connecting rod (03), a first driving mechanism (026) and an eccentric wheel (027), and the eccentric wheel (027) is fixedly mounted on the output shaft of the first driving mechanism (026); A stirring assembly is provided on the inner wall of the feed hopper (01) near the bottom end of the screen frame (035), and the stirring assembly includes a second driving mechanism (041), a third connecting rod (04), and a stirring blade (044).

2. The device for adding raw materials for solder ball production according to claim 1, characterized in that: The screening assembly further comprises a movable hole (036), a connecting disk (033), a limiting block (037), a fixing ring (031), a second supporting block (028), a limiting plate (022), a second connecting rod (032) and a connecting block (034), wherein the movable hole (036) is provided through the center of the top of the supporting frame (021), one end of the first connecting rod (03) is connected to the bottom end of the sliding block (025) and the other end passes through the movable hole (036) and is fixedly connected to the top end of the connecting disk (033).

3. The device for adding raw materials for solder ball production according to claim 2, characterized in that: The bottom end surface of the connecting plate (033) is connected and fixed to the screen frame (035), the fixing ring (031) is fixedly connected to the outer surface of the first connecting rod (03), the connecting block (034) is fixedly connected to both sides of the top edge of the screen frame (035), and the second connecting rod (032) is fixedly connected between the fixing ring (031) and the connecting block (034).

4. The device for adding raw materials for solder ball production according to claim 2, characterized in that: The second support block (028) is fixedly connected to a position on the back of the support frame (021) near the sliding block (025), the limit plate (022) is fixedly connected to one side of the top of the support frame (021), and the limit block (037) is fixedly connected to the outer surface of the first connecting rod (03) located in the movable hole (036), and the size of the limit block (037) is adapted to the movable hole (036).

5. The device for adding raw materials for solder ball production according to claim 1, characterized in that: The first driving mechanism (026) is fixedly mounted on the top surface of the second supporting block (028), and one end of the spring telescopic rod (023) is connected to the limiting plate (022) and the other end is connected to the sliding block (025).

6. The device for adding raw materials for solder ball production according to claim 1, characterized in that: There are four rollers (024) and they are all installed at the four corners of the bottom end of the sliding block (025). The sliding block (025) slides on the top surface of the support frame (021) through the rollers (024). One side of the eccentric wheel (027) contacts the sliding block (025). A movable groove is opened at a position corresponding to the top surface of the support frame (021) and the eccentric wheel (027).

7. The device for adding raw materials for solder ball production according to claim 1, characterized in that: The stirring assembly further comprises a rotating rod (042) and a connecting column (043), one end of the rotating rod (042) is connected to the output shaft of the second driving mechanism (041), and the connecting column (043) is fixedly connected to an end of the rotating rod (042) away from the second driving mechanism (041).

8. The device for adding raw materials for solder ball production according to claim 1, characterized in that: There are a plurality of stirring blades (044) and all of them are fixedly connected to the outer surface of the connecting column (043). The third connecting rod (04) is fixedly connected to the inner wall of the feed hopper (01) near the bottom of the screen frame (035) in a cross shape. The second driving mechanism (041) is fixedly connected and installed in the middle of the bottom end of the third connecting rod (04).

9. The device for adding raw materials for solder ball production according to claim 1, characterized in that: Positions on both sides of the feed hopper (01) at the bottom of the first support block (02) are fixedly connected with mounting plates (011), and positions near the bottom of the two mounting plates (011) are provided with mounting holes.

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