Protective cover capable of preventing materials from being lost

Abstract

The utility model relates to the technical field of semiconductor chips, in particular to a material loss prevention protective cover. A protective fence is arranged at the upper end of a vibration bowl body, a stud is fixed to the upper end of the vibration bowl body, a limiting ring is movably arranged on the outer surface of the stud, a limiting block is fixed to the inner side surface of the limiting ring, a containing groove is formed in a nut, and a spring and a transmission ring are movably arranged on the inner wall of the containing groove; the device has the beneficial effects that the spring can abut against the transmission ring to drive the baffle ring to be located above the containing groove all the time, so that the positioning block and the positioning groove are clamped, the limiting ring and the nut cannot rotate relatively, meanwhile, the limiting block fixed to the inner side surface of the limiting ring and the limiting groove formed in the surface of the stud are clamped, and therefore the limiting ring and the nut cannot rotate relatively; the limiting ring and the stud cannot rotate relative to each other, so that the nut and the stud cannot rotate relative to each other, the problem that the nut is loosened on the stud is solved, and the stability of the protective fence is achieved.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor chip technology, specifically to a protective cover to prevent material loss. Background Technology

[0002] Semiconductors are materials whose electrical conductivity at room temperature is between that of conductors and insulators.

[0003] In the existing technology, with the rapid development of the semiconductor industry, the demand for chips is constantly increasing, and the demand for chip production equipment is also growing. As an important piece of equipment on the chip production line, the chip vibrating bowl can quickly and accurately sort and transport electronic components to the separation port so that the robot can pick up the components, which greatly improves the production speed. The chips are put into the vibrating bowl through the hopper, and with the hopper drop sensor and front and back light sensor set around the vibrating bowl, the chips can be quickly arranged face up and transported to the next production stage through vibration.

[0004] However, the existing vibratory bowls are hollow around the edges, and excessive air blowing or vibration frequency can easily cause the chip to jump out of the vibratory bowl. To solve this problem, operators usually protect the vibratory bowl by setting up protective railings around it and fixing them with bolt assemblies. However, the vibratory bowl will vibrate during operation, which can easily cause the bolt assemblies to loosen over time, affecting the stability of the protective railings. Utility Model Content

[0005] The purpose of this invention is to provide a protective cover to prevent material loss, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a material loss prevention protective cover, the material loss prevention protective cover comprising:

[0007] The vibrating bowl body has a protective railing at its upper end and a stud fixed at its upper end. A limiting ring is movably provided on the outer surface of the stud, and a limiting block is fixed on the inner surface of the limiting ring.

[0008] The nut has a storage groove inside, and a spring and a transmission ring are movably provided on the inner wall of the storage groove. A push rod is movably inserted on the outer surface of the nut, and a transmission wheel is movably provided on the inner end of the push rod.

[0009] Preferably, a limiting groove is formed on the outer surface of the stud, and a lifting lug is fixed on the outer surface of the guardrail. The lifting lug corresponds to and is engaged with the stud, forming a movable connection.

[0010] Preferably, the storage groove has an opening near the end, the opening connecting the storage groove and the outside of the nut, and a positioning block is fixed to the inner wall side surface of the storage groove.

[0011] Preferably, the spring is movably disposed on the bottom surface of the inner wall of the storage groove, a transmission ring is movably disposed on the inner wall of the storage groove above the spring, a retaining ring is movably disposed on the inner wall of the storage groove above the transmission ring, and a positioning groove is formed on the outer surface of the retaining ring.

[0012] Preferably, the transmission ring has a groove on its side surface, the transmission wheel is movably disposed on the groove surface, the positioning groove corresponds to and is engaged with the positioning block, and is movably connected, and a limit ring is fixed at the upper end of the retaining ring.

[0013] Preferably, the upper end of the vibrating bowl body is fixed with a hopper dropping sensor, a positive and negative light sensor and a hopper, the limiting ring is movably disposed on the outer surface of the upper end of the stud, and the limiting block corresponds to and is engaged with the limiting groove, forming a movable connection.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Inside the nut are two sets of springs of the same size but rotating in opposite directions. Due to the presence of the springs, the springs drive the retaining ring to remain above the receiving groove through the top-holding transmission ring, so that the positioning block is engaged with the positioning groove. At this time, there is a limit between the limiting ring and the nut, preventing the limiting ring and the nut from rotating relative to each other. At the same time, the limiting block fixed on the inner surface of the limiting ring is engaged with the limiting groove opened on the surface of the stud, so there is a limit between the limiting ring and the stud, preventing the limiting ring and the stud from rotating relative to each other. Therefore, the nut cannot rotate relative to the stud, thus preventing the nut from loosening on the stud, thereby achieving the stability of the guardrail. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a three-dimensional schematic diagram of the protective fence structure of this utility model;

[0018] Figure 3 This is a three-dimensional schematic diagram of the main structure of the vibrating bowl of this utility model;

[0019] Figure 4 This is a three-dimensional schematic diagram of the bolt assembly structure of this utility model;

[0020] Figure 5 This is an exploded three-dimensional schematic diagram of the bolt assembly structure of this utility model;

[0021] Figure 6 This is a cross-sectional three-dimensional schematic diagram of the nut structure of this utility model;

[0022] Figure 7 This is a three-dimensional cross-sectional view of the nut structure of this utility model from another side;

[0023] Figure 8 This is an exploded three-dimensional schematic diagram of the transmission component structure of this utility model.

[0024] In the diagram: 1. Vibrating bowl body; 2. Stud; 3. Guardrail; 4. Hopper drop sensor; 5. Front and rear light sensor; 6. Hopper; 7. Lifting lug; 8. Limiting ring; 9. Nut; 10. Limiting block; 11. Retaining ring; 12. Positioning groove; 13. Spring; 14. Limiting groove; 15. Groove opening; 16. Positioning block; 17. Storage groove; 18. Push rod; 19. Transmission ring; 20. Inclined groove; 21. Transmission wheel. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example 1: Please refer to Figures 1 to 8 This utility model provides a technical solution: a protective cover to prevent material loss, wherein a protective railing 3 is provided on the upper end of the vibrating bowl body 1, a stud 2 is fixed on the upper end of the vibrating bowl body 1, a limiting ring 8 is movably provided on the outer surface of the stud 2, a limiting block 10 fixed on the inner surface of the limiting ring 8 is engaged with the limiting groove 14 opened on the surface of the stud 2, so that there is a limit between the limiting ring 8 and the stud 2, so that the limiting ring 8 and the stud 2 cannot rotate relative to each other, and the limiting block 10 is fixed on the inner surface of the limiting ring 8.

[0027] The nut 9 has a storage groove 17 inside, and a spring 13 and a transmission ring 19 are movably installed on the inner wall of the storage groove 17. The nut 9 has two sets of springs 13 of the same size but opposite direction, and the two sets of springs 13 are put together, which greatly reduces the resonance of the springs 13. A push rod 18 is movably inserted on the outer surface of the nut 9, and a transmission wheel 21 is movably installed on the inner end of the push rod 18.

[0028] Based on Embodiment 1, in order to prevent the chip from falling out in the vibrating bowl body 1, a limiting groove 14 is opened on the outer surface of the stud 2, and a lifting lug 7 is fixed on the outer surface of the protective railing 3. The lifting lug 7 corresponds to and is locked with the stud 2, forming a movable connection. By fixing the lifting lug 7 on the stud 2, the protective railing 3 is fixed on the vibrating bowl body 1.

[0029] The storage groove 17 has a slot 15 near the end, which connects the storage groove 17 and the outside of the nut 9. A positioning block 16 is fixed on the inner wall side surface of the storage groove 17.

[0030] Spring 13 is movably mounted on the bottom surface of the inner wall of the storage groove 17. A transmission ring 19 is movably mounted on the inner wall of the storage groove 17 above spring 13. A retaining ring 11 is movably mounted on the inner wall of the storage groove 17 above the transmission ring 19. Nut 9 has two sets of springs 13 of the same size but opposite rotation inside, and the two sets of springs 13 are put together, which greatly reduces the resonance of spring 13. Due to the presence of spring 13, spring 13 will drive the retaining ring 11 to always be above the storage groove 17 by supporting the transmission ring 19. A positioning groove 12 is opened on the outer surface of the retaining ring 11.

[0031] A groove 20 is provided on the side surface of the transmission ring 19. The transmission wheel 21 is movably disposed on the surface of the groove 20. The positioning groove 12 corresponds to and is engaged with the positioning block 16, forming a movable connection. The positioning block 16 is engaged with the positioning groove 12. At this time, there is a limit between the limiting ring 8 and the nut 9, so that the limiting ring 8 and the nut 9 cannot rotate relative to each other. The upper end of the retaining ring 11 is fixed with the limiting ring 8.

[0032] The upper end of the vibrating bowl body 1 is fixed with a hopper dropping sensor 4, a front and back light sensor 5, and a hopper 6. The hopper dropping sensor 4 can detect whether the hopper 6 is dropping material. The front and back light sensor 5 can sense the front and back of the chip in the vibrating bowl body 1. The hopper 6 is the chip feeding device. The limiting ring 8 is movably set on the outer surface of the upper end of the stud 2. The limiting block 10 corresponds to and is locked with the limiting groove 14, forming a movable connection. The limiting block 10 fixed on the inner surface of the limiting ring 8 is locked with the limiting groove 14 opened on the surface of the stud 2, so that there is a limit between the limiting ring 8 and the stud 2, so that the limiting ring 8 and the stud 2 cannot rotate relative to each other. Therefore, the nut 9 cannot rotate relative to the stud 2, thereby preventing the nut 9 from loosening on the stud 2, thus realizing the stability of the guardrail 3.

[0033] The specific design is as follows: A protective railing 3 made of aluminum sheet is fixed around the vibrating bowl body 1. Since it cannot block the material drop sensor 4, the positive and negative light sensor 5, and the hopper 6, the protective railing 3 is C-shaped and concave. The notch in the protective railing 3 serves as the discharge port of the vibrating bowl body 1. The protective railing 3 is fixed to the upper part of the vibrating bowl body 1 using bolt assemblies. When a chip tries to detach from the vibrating bowl body 1 due to excessive vibration frequency or airflow, the protective railing 3 will block it. Because the protective railing 3 is vertically positioned at the upper part of the vibrating bowl body 1, the chip blocked by the protective railing 3 will automatically slide down into the vibrating bowl body 1. In the vibrating bowl body 1, this avoids the problem of material falling out. However, since the vibrating bowl body 1 will vibrate during operation, prolonged vibration can easily lead to loosening of the bolt assembly, resulting in instability of the guardrail 3. To ensure the stability of the guardrail 3, two sets of springs 13 of the same size but opposite rotation are provided inside the nut 9, and the two sets of springs 13 are fitted together, which greatly reduces the resonance of the springs 13. Due to the presence of the springs 13, the springs 13 will drive the retaining ring 11 to remain above the receiving groove 17 through the top drive ring 19, so that the positioning block 16 is locked with the positioning groove 12, and the limit is achieved. There is a limiting position between the ring 8 and the nut 9, preventing them from rotating relative to each other. Simultaneously, the limiting block 10 fixed to the inner surface of the limiting ring 8 engages with the limiting groove 14 on the surface of the stud 2, further limiting the movement between the limiting ring 8 and the stud 2. Therefore, the nut 9 cannot rotate relative to the stud 2, preventing it from loosening and ensuring the stability of the guardrail 3. When the guardrail 3 needs to be removed, simply press the push rod 18 to drive the transmission wheel 21 to roll on the inclined groove 20. Since the inclined groove 20 is upward-sloping... The transmission wheel 21 is always at the same height due to the restriction of the nut 9. Therefore, when the transmission wheel 21 moves on the inclined groove 20, it will drive the transmission ring 19 to move downward and squeeze the spring 13. When the transmission ring 19 moves downward, the retaining ring 11 loses its support, and the limiting ring 8 will move downward due to gravity. When the push rod 18 moves completely into the receiving groove 17, the positioning block 16 separates from the positioning groove 12. At this time, the limitation between the limiting ring 8 and the nut 9 disappears. At this time, the nut 9 can be separated from the stud 2 by using a wrench to simultaneously clamp the end of the push rod 18 and the outer surface of the nut 9, thereby realizing the convenient disassembly of the guardrail 3.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective cover to prevent material loss, characterized in that: The anti-loss protective cover includes: Vibrating bowl body (1), the upper end of the vibrating bowl body (1) is provided with a protective railing (3), the upper end of the vibrating bowl body (1) is fixed with a stud (2), the outer surface of the stud (2) is movably provided with a limiting ring (8), and the inner surface of the limiting ring (8) is fixed with a limiting block (10); Nut (9), the nut (9) has a storage groove (17) inside, the inner wall of the storage groove (17) is movably provided with a spring (13) and a transmission ring (19), the outer surface of the nut (9) is movably inserted with a push rod (18), and the inner end of the push rod (18) is movably provided with a transmission wheel (21).

2. The anti-loss protective cover according to claim 1, characterized in that: The stud (2) has a limiting groove (14) on its outer surface, and the guardrail (3) has a lifting lug (7) fixed on its outer surface. The lifting lug (7) corresponds to and is engaged with the stud (2), forming a movable connection.

3. The anti-loss protective cover according to claim 2, characterized in that: The storage groove (17) has a slot (15) near the port, the slot (15) connects the storage groove (17) and the outside of the nut (9), and a positioning block (16) is fixed on the inner wall side surface of the storage groove (17).

4. The anti-loss protective cover according to claim 3, characterized in that: The spring (13) is movably disposed on the bottom surface of the inner wall of the storage groove (17). A transmission ring (19) is movably disposed on the inner wall of the storage groove (17) above the spring (13). A retaining ring (11) is movably disposed on the inner wall of the storage groove (17) above the transmission ring (19). A positioning groove (12) is opened on the outer surface of the retaining ring (11).

5. The anti-loss protective cover according to claim 4, characterized in that: The transmission ring (19) has a groove (20) on its side surface. The transmission wheel (21) is movably disposed on the surface of the groove (20). The positioning groove (12) corresponds to and is engaged with the positioning block (16), forming a movable connection. The upper end of the retaining ring (11) is fixed with a limit ring (8).

6. The anti-loss protective cover according to claim 5, characterized in that: The upper end of the vibrating bowl body (1) is fixed with a hopper dropping sensor (4), a positive and negative light sensor (5) and a hopper (6). The limiting ring (8) is movably disposed on the outer surface of the upper end of the stud (2). The limiting block (10) corresponds to and is locked with the limiting groove (14), forming a movable connection.

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