Feeding structure for screw screening

Abstract

The feeding structure comprises a screw vibration disc, a material guiding groove plate is fixedly connected to a discharging opening of the screw vibration disc, a screening groove plate is fixedly connected to the side end of the material guiding groove plate, and a plurality of first material guiding grooves are formed in the bottom end of the screening groove plate; the widths of the multiple first guide grooves are sequentially increased from the side close to the screw vibration disc to the side away from the screw vibration disc, and first guide hoppers are fixedly connected to the positions, corresponding to the multiple first guide grooves, of the bottom end of the screening groove plate and the side, away from the screw vibration disc, of the screening groove plate correspondingly. And a vibrating mechanism is arranged below the multiple first guide hoppers, and feeding mechanisms are connected to the positions, corresponding to the multiple first guide hoppers, of the vibrating mechanism, so that the screws of multiple models can be screened and separated conveniently, and the screws of different models can be conveyed separately conveniently.

Description

Technical Field

[0001] This utility model relates to the field of screw vibrating screen technology, and more specifically, it relates to a feeding structure for screw screening. Background Technology

[0002] After production, screws typically require appearance inspection and screening to ensure they meet subsequent usage requirements. Generally, a batch of screws is transported in an orderly manner from a screw vibratory feeder to a screw inspection device for testing. Existing screw vibratory feeders mainly consist of a hopper, a spiral track, and a vibrating motor. When the vibrating motor operates, it generates vibration, causing the screws in the hopper to rise along the spiral track. During this ascent, the screws are constrained by the track and are ultimately directed into the inspection device.

[0003] A search revealed that Chinese utility model patent application number CN202321622804.6 discloses a feeding structure for screw screening, including a conveyor frame, a limiting plate, and an anti-tilting plate. The conveyor frame includes a first guide frame and a second guide frame for connecting to both sides of the discharge port of the screw vibrating plate. The limiting plate is slidably disposed on the first guide frame, forming a conveying channel between the limiting plate and the second guide frame. The conveying channel is used to communicate with the discharge port. The first guide frame is fixedly provided with several first bolts. The limiting plate has several limiting grooves. The threaded end of each first bolt passes through a limiting groove and is fitted with a nut for abutting against the limiting plate. The anti-tilting plate includes an abutting part and a connecting part. The abutting part slidably abuts against the side of the first guide frame opposite to the limiting plate. One end of the connecting part is connected to the end of the limiting plate near the conveying channel, and the other end extends into the conveying channel and connects with the limiting plate.

[0004] When in use, it can adjust the gap of the conveying channel to achieve the orientation and transportation of screws of different models. However, when it is necessary to screen a mixture of screws of different models, it can only arrange and transport one model of screws by adjusting the gap of the channel. It is not convenient to separate screws of multiple models or to transport screws of different models separately. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a feeding structure for screw screening, so as to solve the technical problems mentioned in the background art that it is inconvenient to separate multiple types of screws and to transport different types of screws separately.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a feeding structure for screw screening, including a screw vibrating plate, a guide trough plate fixedly connected to the outlet of the screw vibrating plate, a screening trough plate fixedly connected to the side end of the guide trough plate, a plurality of first guide troughs provided at the bottom end of the screening trough plate, the width of the plurality of first guide troughs increasing sequentially from the side closer to the screw vibrating plate to the side farther away from the screw vibrating plate, a first guide hopper fixedly connected to the bottom end of the screening trough plate at the position corresponding to the plurality of first guide troughs and to the side of the screening trough plate away from the screw vibrating plate, a vibration mechanism provided below the plurality of first guide hoppers, and a feeding mechanism connected to the vibration mechanism at the position corresponding to the plurality of first guide hoppers, which facilitates the separation of screws of multiple models and facilitates the separate conveying of screws of different models.

[0009] The present invention is further configured such that the vibration mechanism includes a fixed base and a vibration motor. The fixed base is provided with multiple circular grooves, and multiple sliding columns are slidably arranged inside the multiple circular grooves. The top of the multiple sliding columns is fixedly connected to a connecting seat, and the bottom of the multiple sliding columns is fixedly connected to a cross seat. The vibration motor is installed at the bottom of the cross seat. Two compression springs are sleeved on the outside of the middle sliding column. The two compression springs are located on the upper and lower sides of the fixed base, respectively, to facilitate the screw flipping and conveying inside the feeding mechanism.

[0010] The present invention is further configured such that the feeding mechanism includes multiple feeding troughs and multiple second guide hoppers, the multiple feeding troughs are fixedly connected to the connecting seat, the multiple feeding troughs are fixedly connected below the multiple second guide hoppers, and the multiple feeding troughs are provided with multiple second guide troughs to facilitate the transportation of screws to the corresponding screw detection device.

[0011] The present invention is further configured such that the bottom ends of the plurality of first guide hoppers are respectively inserted into the interior of the plurality of second guide hoppers, so that screws falling from the interior of the first guide hoppers can fall into the interior of the second guide hoppers.

[0012] The present invention is further configured such that the width of the plurality of second guide grooves corresponds to the size of the screw falling from the corresponding first guide groove, which facilitates the conveying of the corresponding screw.

[0013] The present invention is further configured such that the inner bottom ends of the plurality of feeding trough plates are inclined downwards toward the side away from the second guide hopper, so as to facilitate the screws sliding out from the inside of the second guide hopper.

[0014] The present invention is further configured such that a plurality of reinforcing plates are fixedly connected to the top of the feed trough plate to reinforce the screening trough plate.

[0015] The present invention is further configured such that guide plates are fixedly connected to both sides of the multiple first guide grooves inside the guide groove plate, so that the screws can slide into the corresponding first guide groove.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a feeding structure for screw screening, which has the following beneficial effects:

[0018] 1. The screws output from the discharge port of the screw vibrating plate and the guide trough slide into the interior of the screening trough. When the size of the screw is smaller than the width of the corresponding first guide trough on the screening trough, the corresponding screw will fall from the interior of the corresponding first guide trough and land in the interior of the corresponding first guide hopper. It is then conveyed by the feeding mechanism, which facilitates the separation of multiple screw models and the separate conveying of different screw models.

[0019] 2. The screws inside the multiple first guide hoppers fall into the multiple second guide hoppers respectively, and then fall into the corresponding feeding troughs through the multiple second guide hoppers. The screws of the corresponding model slide inside the corresponding feeding troughs and are conveyed to the corresponding screw detection device.

[0020] 3. The vibration motor causes the cross seat, multiple sliding columns, connecting seat, multiple feeding troughs and multiple second guide hoppers to vibrate. During the vibration of the multiple feeding troughs, the screws are made to flip inside the corresponding feeding troughs and flip them to the inside of the second guide hoppers, so that the screw heads are stuck on the upper side of the second guide hoppers. During the vibration of the feeding troughs, the screws are made to slide inside the feeding troughs, which facilitates the conveying of the screws inside the feeding troughs. Attached Figure Description

[0021] Figure 1 This is a front view of a feeding structure for screw screening according to the present invention.

[0022] Figure 2 This is a schematic diagram of the rear structure of a feeding structure for screw screening in this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the screening trough and multiple guide plates connected in this utility model;

[0024] Figure 4 This is a schematic diagram of the connection between the feeding trough and the second guide hopper in this utility model;

[0025] Figure 5 This is a schematic diagram of the vibration mechanism in this utility model.

[0026] In the diagram: 1. Screw vibratory feeder; 2. Discharge port; 3. Guide trough plate; 4. Screening trough plate; 5. First guide trough; 6. First guide hopper; 7. Fixed seat; 8. Vibration motor; 9. Circular groove; 10. Sliding column; 11. Connecting seat; 12. Horizontal seat; 13. Compression spring; 14. Feeding trough plate; 15. Second guide hopper; 16. Second guide trough; 17. Reinforcing plate; 18. Guide plate. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5 A feeding structure for screw screening includes a screw vibrating plate 1, a guide trough plate 3 fixedly connected to the outlet 2 of the screw vibrating plate 1, a screening trough plate 4 fixedly connected to the side end of the guide trough plate 3, a plurality of first guide troughs 5 provided at the bottom end of the screening trough plate 4, the width of the plurality of first guide troughs 5 increasing sequentially from the side closer to the screw vibrating plate 1 to the side farther away from the screw vibrating plate 1, a plurality of reinforcing plates 17 fixedly connected to the top end of the guide trough plate 3 to reinforce the screening trough plate 4, guide plates 18 fixedly connected to both sides of the plurality of first guide troughs 5 inside the guide trough plate 3 to facilitate screws sliding into the corresponding first guide troughs 5, a first guide hopper 6 fixedly connected to the bottom end of the screening trough plate 4 at the position corresponding to the plurality of first guide troughs 5 and to the side of the screening trough plate 4 away from the screw vibrating plate 1, a vibration mechanism provided below the plurality of first guide hoppers 6, and a feeding mechanism connected to the vibration mechanism at the position corresponding to the plurality of first guide hoppers 6.

[0031] Specifically, the screws output from the discharge port 2 on the screw vibrating plate 1 and the guide trough plate 3 slide into the interior of the screening trough plate 4. When the size of the screw is smaller than the width of the corresponding first guide trough 5 on the screening trough plate 4, the corresponding screw will fall from the interior of the corresponding first guide trough 5 and land in the interior of the corresponding first guide hopper 6, and be conveyed by the feeding mechanism. This facilitates the separation of multiple screw models and the separate conveying of screws of different models.

[0032] Please see Figure 1 , Figure 2 and Figure 5 The vibration mechanism includes a fixed base 7 and a vibration motor 8. The fixed base 7 is provided with multiple circular grooves 9. Multiple sliding columns 10 are slidably arranged inside the multiple circular grooves 9. The top of the multiple sliding columns 10 is fixedly connected to a connecting seat 11, and the bottom of the multiple sliding columns 10 is fixedly connected to a cross seat 12. The vibration motor 8 is installed at the bottom of the cross seat 12. Two compression springs 13 are sleeved on the outside of the middle sliding column 10. The two compression springs 13 are located on the upper and lower sides of the fixed base 7, respectively, to facilitate the screw flipping and conveying inside the feeding mechanism.

[0033] Specifically, the vibration motor 8 operates to vibrate the cross seat 12, multiple sliding columns 10, connecting seat 11, multiple feeding troughs 14, and multiple second guide hoppers 15. During the vibration of the multiple feeding troughs 14, the screws are easily flipped inside the corresponding feeding troughs 14 and flipped into the second guide hopper 16, so that the screw head is stuck on the upper side of the second guide hopper 16. During the vibration of the feeding troughs 14, the screws are easily slid inside the feeding troughs 14, which facilitates the conveying of the screws inside the feeding troughs 14.

[0034] Please see Figure 1 , Figure 2 and Figure 4 The feeding mechanism includes multiple feeding troughs 14 and multiple second guide hoppers 15. The multiple feeding troughs 14 are fixedly connected to the connecting seat 11 and are fixedly connected below the multiple second guide hoppers 15. Multiple second guide grooves 16 are provided on the multiple feeding troughs 14. The bottom ends of the multiple first guide hoppers 6 are respectively inserted into the interior of the multiple second guide hoppers 15. The width of the multiple second guide grooves 16 corresponds to the size of the screw falling from the corresponding first guide groove 5, which facilitates the conveying of the corresponding screw. The bottom end of the interior of the multiple feeding troughs 14 is inclined downwards on the side away from the second guide hopper 15, which facilitates the screw sliding down from the interior of the second guide hopper 15.

[0035] Specifically, the screws inside the multiple first guide hoppers 6 fall into the multiple second guide hoppers 15, and then fall into the corresponding feeding troughs 14 through the multiple second guide hoppers 15. The screws of the corresponding type slide inside the corresponding feeding troughs 14 and are transported to the corresponding screw detection device.

[0036] In summary, when using the overall equipment:

[0037] The screws to be screened and conveyed are placed inside the screw vibrating plate 1. When the screw vibrating plate 1 is working, the screws are discharged from the discharge port 2 of the screw vibrating plate 1. The screws discharged from the discharge port 2 slide down the guide trough plate 3 into the screening trough plate 4. When the size of the screw is smaller than the width of the corresponding first guide trough 5 on the screening trough plate 4, the corresponding screw will fall from the corresponding first guide trough 5 and into the corresponding first guide hopper 6. The screws in the multiple first guide hoppers 6 fall into the multiple second guide hoppers 15 respectively, and then fall into the corresponding... Inside the feeding trough plate 14, the vibration motor 8 simultaneously operates, causing the horizontal seat 12, multiple sliding columns 10, connecting seat 11, multiple feeding trough plates 14, and multiple second guide hoppers 15 to vibrate. During the vibration of the multiple feeding trough plates 14, the screws are facilitated to flip inside the corresponding feeding trough plate 14 and to flip the screws into the second guide hopper 16, so that the screw head is stuck on the upper side of the second guide hopper 16. During the vibration of the feeding trough plate 14, the screws are facilitated to slide inside the feeding trough plate 14, so that the screws are conveyed inside the feeding trough plate 14, and the corresponding screws are conveyed and fed separately.

[0038] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A feeding structure for screw screening, comprising a screw vibrating disc (1), characterized in that: A guide trough plate (3) is fixedly connected to the discharge port (2) of the screw vibrating plate (1). A screening trough plate (4) is fixedly connected to the side end of the guide trough plate (3). A plurality of first guide troughs (5) are provided at the bottom end of the screening trough plate (4). The width of the plurality of first guide troughs (5) increases sequentially from the side closer to the screw vibrating plate (1) to the side farther away from the screw vibrating plate (1). A first guide hopper (6) is fixedly connected to the bottom end of the screening trough plate (4) at the position corresponding to the plurality of first guide troughs (5) and to the side of the screening trough plate (4) away from the screw vibrating plate (1). A vibration mechanism is provided below the plurality of first guide hoppers (6). A feeding mechanism is connected to the vibration mechanism at the position corresponding to the plurality of first guide hoppers (6).

2. The feeding structure for screw screening according to claim 1, characterized in that: The vibration mechanism includes a fixed base (7) and a vibration motor (8). The fixed base (7) is provided with multiple circular grooves (9). Multiple sliding columns (10) are slidably arranged inside the multiple circular grooves (9). The top of the multiple sliding columns (10) is fixedly connected to a connecting seat (11). The bottom of the multiple sliding columns (10) is fixedly connected to a cross seat (12). The vibration motor (8) is installed at the bottom of the cross seat (12). Two compression springs (13) are sleeved on the outside of the middle sliding column (10). The two compression springs (13) are located on the upper and lower sides of the fixed base (7), respectively.

3. The feeding structure for screw screening according to claim 2, characterized in that: The feeding mechanism includes multiple feeding troughs (14) and multiple second guide hoppers (15). The multiple feeding troughs (14) are fixedly connected to the connecting seat (11). The multiple feeding troughs (14) are fixedly connected below the multiple second guide hoppers (15). Multiple second guide troughs (16) are provided on the multiple feeding troughs (14).

4. The feeding structure for screw screening according to claim 3, characterized in that: The bottom ends of the plurality of first guide hoppers (6) are respectively inserted into the interior of the plurality of second guide hoppers (15).

5. The feeding structure for screw screening according to claim 3, characterized in that: The width of the plurality of second guide grooves (16) corresponds to the size of the screw falling from the corresponding first guide groove (5).

6. The feeding structure for screw screening according to claim 4, characterized in that: The inner bottom of the plurality of feeding trough plates (14) is inclined downward toward the side away from the second guide hopper (15).

7. The feeding structure for screw screening according to claim 1, characterized in that: The top of the feed trough plate (3) is fixedly connected with multiple reinforcing plates (17).

8. The feeding structure for screw screening according to claim 1, characterized in that: Inside the guide trough plate (3), guide plates (18) are fixedly connected to both sides of the multiple first guide troughs (5).

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