Semiconductor crystal grain screening machine for semiconductor production

Abstract

The utility model relates to the technical field of crystal grain screening, and discloses a semiconductor crystal grain screening machine for semiconductor production, which comprises an outer shell, a door plate is mounted on one side of the outer shell, a feeding hopper is connected above the outer shell, connecting plates are arranged on two sides in the outer shell, a transverse plate is fixed on one side between the two connecting plates, and a plurality of transverse plates are fixed on the other side between the two connecting plates. A reciprocating mechanism is arranged on one side of the transverse plate, a sliding mechanism is arranged between one side of each connecting plate and the inner wall of the outer shell, a box body is arranged below the position between the two connecting plates, and a lower shell is arranged over the box body. According to the crystal grain screening device, crystal grains are poured into the feeding hopper and fall into the upper shell along the feeding hopper, the crystal grains can be screened through the screen in the upper shell, so that the crystal grains with small sizes fall into the lower shell, and the crystal grains can be subjected to secondary screening through the screen in the lower shell; and smaller crystal grains fall into the box body, so that the crystal grains can be screened for multiple times.

Description

Technical Field

[0001] The utility model relates to the technical field of crystal grain screening, and more specifically, the utility model relates to a semiconductor crystal grain screening machine for semiconductor production. Background Art

[0002] A crystal grain is a small piece of integrated circuit body made of semiconductor material without encapsulation, and the established function of the integrated circuit is realized on this small piece of semiconductor. Before using semiconductor crystal grains, we need to use a screening machine to screen the semiconductor crystal grains. However, the existing screening machine can only screen the semiconductor crystal grains once, and the size of the screened crystal grains is not fine enough. In order to screen the semiconductor crystal grains of different sizes more finely, we propose a semiconductor crystal grain screening machine for semiconductor production. Content of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a semiconductor crystal grain screening machine for semiconductor production, which has the advantage of being able to screen the classification entering the outer shell.

[0004] To achieve the above object, the utility model provides the following technical solution: A semiconductor crystal grain screening machine for semiconductor production, including an outer shell, a door panel is installed on one side of the outer shell, a feeding funnel is connected above the outer shell, connecting plates are arranged on both sides inside the outer shell, a cross plate is fixed on one side between the two connecting plates, a reciprocating mechanism is arranged on one side of the cross plate, a sliding mechanism is arranged between one side of the two connecting plates and the inner wall of the outer shell, a box body is arranged below the two connecting plates, a lower shell is arranged directly above the box body, an upper shell is arranged directly above the lower shell, and connecting mechanisms are arranged between the upper sides of the box body, the lower shell, the upper shell and the two connecting plates. Sieve meshes are fixed below the lower shell and the upper shell, and blanking funnels are fixed at the bottoms of the lower shell and the upper shell.

[0005] As a preferred technical solution of the utility model, universal wheels are fixed at the four corners of the bottom of the outer shell.

[0006] As a preferred technical solution of the present utility model, the reciprocating mechanism includes a side connecting plate and a support plate. The side connecting plate is arranged on one side of the outer wall of the housing. Side sliding holes are formed in the outer walls of the housing on both sides of the side connecting plate. Side sliding rods are fixed on both sides of the side connecting plate. One ends of the two side sliding rods respectively pass through the two side sliding holes and are fixed on the cross plate. Springs are sleeved outside the two side sliding rods. One end of the spring is fixed on the side connecting plate, and the other end of the spring is fixed on the outer wall of the housing. The support plate is fixed on one side of the outer wall of the housing. A motor is installed above the support plate. A rotating shaft is connected above the motor. A convex rotating plate is fixed at one end of the rotating shaft, and one side of the convex rotating plate is in contact with the side wall of the side connecting plate.

[0007] As a preferred technical solution of the present utility model, the sliding mechanism includes two side plates and a sliding plate. The two side plates are respectively fixed on both sides of the inner wall of the housing. The sliding plate is fixed on one side of the connecting plate and is arranged between the two side plates. A plurality of sliding holes are formed in the sliding plate. A plurality of sliding rods are fixed on the side wall of one of the side plates. One ends of the plurality of sliding rods respectively pass through the plurality of sliding holes and are fixed on the side wall of the other side plate.

[0008] As a preferred technical solution of the present utility model, the connecting mechanism includes an upper plate and a lower plate. The lower plate is fixed on the side wall of the connecting plate. The upper plate is fixed on one side above the box body, the lower housing and the upper housing. The upper plate is placed above the lower plate. Pull handles are fixed above the upper plate. Insertion holes are formed on both sides of the lower plate. Insertion rods are fixed on both sides below the upper plate, and one end of the insertion rod passes through the insertion hole and extends downward.

[0009] As a preferred technical solution of the present utility model, the mesh diameter of the sieve mesh in the upper housing is larger than the mesh diameter of the sieve mesh in the lower housing.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] In the present utility model, the grains to be screened are poured into the feeding funnel. The grains will then fall into the upper housing along the feeding funnel. The grains can be screened through the sieve mesh in the upper housing, so that some grains with smaller volume fall into the lower housing. The grains can be secondarily screened through the sieve mesh in the lower housing, so that smaller grains fall into the box body. The reciprocating mechanism can make the lower housing and the upper housing move back and forth, thereby preventing the sieve mesh from being blocked. In this way, the grains can be screened multiple times, making the screening more meticulous. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0013] Figure 2 is a front view structural schematic diagram of the present utility model;

[0014] Figure 3 This is a schematic side view structure diagram of the utility model;

[0015] Figure 4 This is a schematic top view structure diagram of the utility model;

[0016] Figure 5 This is an enlarged schematic diagram of the structure of part A of the utility model.

[0017] In the figure: 1. Outer shell; 2. Feeding funnel; 3. Universal wheel; 4. Connecting plate; 5. Upper shell; 6. Lower shell; 7. Box body; 8. Sieve mesh; 9. Discharging funnel; 10. Upper plate; 11. Lower plate; 12. Pull handle; 13. Plug rod; 14. Jack; 15. Slide plate; 16. Side plate; 17. Slide rod; 18. Support plate; 19. Motor; 20. Convex rotating plate; 21. Side connecting plate; 22. Side slide rod; 23. Spring; 24. Door panel; 25. Cross plate. Specific implementation manners

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] As Figures 1 to 5 shown, the present utility model provides a semiconductor crystal grain screening machine for semiconductor production, including an outer shell 1, a door panel 24 is installed on one side of the outer shell 1, a feeding funnel 2 is connected above the outer shell 1, connecting plates 4 are arranged on both sides inside the outer shell 1, a cross plate 25 is fixed on one side between the two connecting plates 4, a reciprocating mechanism is arranged on one side of the cross plate 25, and the lower shell 6 and the upper shell 5 can be reciprocated through the reciprocating mechanism to prevent the sieve mesh 8 from being blocked. A sliding mechanism is arranged between one side of the two connecting plates 4 and the inner wall of the outer shell 1, and the two connecting plates 4 can be conveniently reciprocated inside the outer shell 1 through the sliding mechanism.

[0020] A box body 7 is arranged below between two connecting plates 4, a lower shell 6 is arranged directly above the box body 7, an upper shell 5 is arranged directly above the lower shell 6, and connecting mechanisms are arranged between the upper sides of both sides of the box body 7, the lower shell 6, and the upper shell 5 and the two connecting plates 4. Screens 8 are fixed to the lower parts inside the lower shell 6 and the upper shell 5. The mesh diameter of the screen 8 inside the upper shell 5 is larger than that of the screen 8 inside the lower shell 6. Discharge funnels 9 are fixed to the bottoms of the lower shell 6 and the upper shell 5. When the crystal grains are poured into the feed funnel 2, the crystal grains will fall into the upper shell 5 along the feed funnel 2. The crystal grains can be screened through the screen 8 inside the upper shell 5, so that some crystal grains with smaller volumes fall into the lower shell 6. The crystal grains can be secondarily screened through the screen 8 inside the lower shell 6 to make smaller crystal grains fall into the box body 7. In this way, the crystal grains can be screened multiple times.

[0021] Wherein, universal wheels 3 are fixed at the four corners of the bottom of the outer shell body 1. The screening machine can be conveniently moved through the universal wheels 3.

[0022] Wherein, the reciprocating mechanism includes a side connecting plate 21 and a support plate 18. The side connecting plate 21 is arranged on one side of the outer wall of the outer shell body 1. Side sliding holes are formed in the outer walls of the outer shell body 1 on both sides of the side connecting plate 21. Side sliding rods 22 are fixed to both sides of the side connecting plate 21. One ends of the two side sliding rods 22 respectively pass through the two side sliding holes and are fixed to the cross plate 25. Springs 23 are sleeved on the two side sliding rods 22. One end of the spring 23 is fixed to the side connecting plate 21, and the other end of the spring 23 is fixed to the outer wall of the outer shell body 1. The support plate 18 is fixed to one side of the outer wall of the outer shell body 1. A motor 19 is installed above the support plate 18. A rotating shaft is connected above the motor 19. A convex rotating plate 20 is fixed to one end of the rotating shaft. One side of the convex rotating plate 20 is in contact with the side wall of the side connecting plate 21. When the motor 19 is started, the motor 19 can drive the rotating shaft to rotate. The rotation of the rotating shaft can drive the convex rotating plate 20 to rotate. When the protruding part of the convex rotating plate 20 gradually contacts the side connecting plate 21, it will drive the side connecting plate 21 to move. In this way, the two connecting plates 4 can be driven to move. At this time, the spring 23 will be compressed. When the protruding part of the convex rotating plate 20 gradually moves away from the side connecting plate 21, the spring will reset and drive the two connecting plates 4 to move in the reverse direction. In this way, the two connecting plates 4 can be driven to reciprocate.

[0023] Wherein, the sliding mechanism includes two side plates 16 and a sliding plate 15. The two side plates 16 are respectively fixed to both sides of the inner wall of the outer shell body 1. The sliding plate 15 is fixed to one side of the connecting plate 4 and is arranged between the two side plates 16. A plurality of sliding holes are formed in the sliding plate 15. A plurality of sliding rods 17 are fixed to the side wall of one of the side plates 16. One ends of the plurality of sliding rods 17 respectively pass through the plurality of sliding holes and are fixed to the side wall of the other side plate 16. By sliding the sliding rods 17 in the sliding holes, the connecting plate 4 can slide inside the outer shell body 1.

[0024] Among them, the connecting mechanism includes an upper plate 10 and a lower plate 11. The lower plate 11 is fixed to the side wall of the connecting plate 4, and the upper plate 10 is fixed to one side above the box body 7, the lower shell 6, and the upper shell 5. And the upper plate 10 is placed above the lower plate 11. Pull handles 12 are fixed above the upper plate 10. Through the pull handles 12, it is convenient to move the box body 7, the lower shell 6, and the upper shell 5. Jacks 14 are opened on both sides of the lower plate 11, and inserting rods 13 are fixed on both sides below the upper plate 10. And one end of the inserting rod 13 passes through the jack 14 and extends downward. By passing one end of the inserting rod 13 through the jack 14, the upper plate 10 can be horizontally limited, and thus the box body 7, the lower shell 6, and the upper shell 5 can be horizontally limited. When it is necessary to take out the box body 7, the lower shell 6, and the upper shell 5 from the outer shell 1, only need to open the door panel 24, and then pull up the pull handle 12 to pull one end of the inserting rod 13 out of the jack 14 to take it out.

[0025] The working principle and usage process of the present utility model: By pouring the crystal grains into the feeding funnel 2, the crystal grains will fall into the upper shell 5 along the feeding funnel 2. The crystal grains can be screened through the sieve mesh 8 in the upper shell 5, so that some crystal grains with smaller volumes fall into the lower shell 6. Since the mesh diameter of the sieve mesh 8 in the upper shell 5 is larger than the mesh diameter of the sieve mesh 8 in the lower shell 6, the crystal grains can be secondarily screened through the sieve mesh 8 in the lower shell 6, so that smaller crystal grains fall into the box body 7. In this way, the crystal grains can be screened multiple times, making the screening of the crystal grains more meticulous and facilitating subsequent use.

[0026] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A semiconductor die screening machine for semiconductor production, comprising a housing (1), and a door panel (24) is installed on one side of the housing (1), characterized in that: Above the outer shell (1), a feeding funnel (2) is connected. On both sides inside the outer shell (1), connecting plates (4) are provided. On one side between the two connecting plates (4), a cross plate (25) is fixed. On one side of the cross plate (25), a reciprocating mechanism is arranged. Between one side of the two connecting plates (4) and the inner wall of the outer shell (1), a sliding mechanism is arranged. Below the two connecting plates (4), a box body (7) is provided. Directly above the box body (7), a lower shell (6) is provided. Directly above the lower shell (6), an upper shell (5) is provided. And between the upper sides of both sides of the box body (7), the lower shell (6), the upper shell (5) and the two connecting plates (4), a connecting mechanism is arranged. Below the lower shell (6) and the upper shell (5), a sieve mesh (8) is fixed. At the bottom of the lower shell (6) and the upper shell (5), a blanking funnel (9) is fixed.

2. The semiconductor die screening machine for semiconductor production according to claim 1, wherein: At the four corners of the bottom of the outer shell (1), universal wheels (3) are fixed.

3. A semiconductor die screening machine for semiconductor production according to claim 1, characterized in that: The reciprocating mechanism includes a side connecting plate (21) and a support plate (18). The side connecting plate (21) is arranged on one side of the outer wall of the outer shell (1). On the outer wall of the outer shell (1) on both sides of the side connecting plate (21), side sliding holes are formed. On both sides of the side connecting plate (21), side sliding rods (22) are fixed. One end of each of the two side sliding rods (22) passes through the two side sliding holes respectively and is fixed on the cross plate (25). Springs (23) are sleeved outside the two side sliding rods (22). One end of each spring (23) is fixed on the side connecting plate (21), and the other end of the spring (23) is fixed on the outer wall of the outer shell (1). The support plate (18) is fixed on one side of the outer wall of the outer shell (1). Above the support plate (18), a motor (19) is installed. Above the motor (19), a rotating shaft is connected. One end of the rotating shaft is fixed with a convex rotating plate (20), and one side of the convex rotating plate (20) is in contact with the side wall of the side connecting plate (21).

4. A semiconductor die screening machine for semiconductor production according to claim 1, characterized in that: The sliding mechanism includes two side plates (16) and a sliding plate (15). The two side plates (16) are respectively fixed on both sides of the inner wall of the outer shell (1). The sliding plate (15) is fixed on one side of the connecting plate (4), and the sliding plate (15) is arranged between the two side plates (16). A plurality of sliding holes are formed in the sliding plate (15). On the side wall of one of the side plates (16), a plurality of sliding rods (17) are fixed. One end of each of the plurality of sliding rods (17) passes through the plurality of sliding holes respectively and is fixed on the side wall of the other side plate (16).

5. A semiconductor die screening machine for semiconductor production according to claim 1, characterized in that: The connecting mechanism includes an upper plate (10) and a lower plate (11). The lower plate (11) is fixed on the side wall of the connecting plate (4). The upper plate (10) is fixed on one side above the box body (7), the lower shell (6), and the upper shell (5), and the upper plate (10) is placed above the lower plate (11). Pull handles (12) are fixed above the upper plate (10). On both sides of the lower plate (11), insertion holes (14) are formed. On both sides below the upper plate (10), insertion rods (13) are fixed, and one end of the insertion rod (13) passes through the insertion hole (14) and extends downward.

6. A semiconductor die screening machine for semiconductor production according to claim 1, characterized in that: The mesh diameter of the screen (8) in the upper housing (5) is larger than that of the screen (8) in the lower housing (6).

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