Automatic screening device for screws

Abstract

The utility model discloses an automatic screw screening device, which relates to the technical field of screening devices, and comprises a box body, a hopper is arranged in the box body, a motor is fixedly arranged at the lower end of the hopper in the box body, a rotating wheel is fixedly arranged at the lower end of the motor, and the rotating wheel is rotationally connected with the box body at the same time. And two sets of motors and two sets of rotating wheels are symmetrically arranged along the center line of the box body, and a shifting fork is fixedly arranged at the other end of each connecting rod. Compared with an existing common automatic screw screening device, the automatic screw screening device has the advantages that before screws are screened, the screws are firstly placed in the hopper, and during working, the motor is started to drive the rotating wheel, and the rotating wheel drives the connecting rod to do circular motion, so that the shifting fork on the front side can be driven to do circular motion; therefore, the screws can be dispersed or withdrawn through the shifting fork when the screws fall, and blockage can be avoided when the screws fall.

Description

Technical Field

[0001] The utility model relates to the technical field of screening devices, in particular to an automatic screening device for screws. Background Art

[0002] In the assembly of products, a large number of screws are usually used to fix the various parts of the product together. Since the sizes of the various parts of the product are different, screws of different sizes are required. Some screws are longer, and some are shorter. It is difficult to distinguish these screws of different lengths when they are mixed together, which may lead to incorrect use of the screws.

[0003] As shown in the application number 201720677284.7, the utility model relates to a screw screening device, including a frame, on which a screening mechanism, a feeding mechanism and a receiving mechanism are arranged, the screening mechanism includes two rollers arranged in parallel, the rollers are obliquely arranged on the frame, a screening space between the two rollers is gradually expanded from the rear end to the front end, the receiving mechanism is located below the screening space, a protective shield is provided on the outer cover of the rollers, the protective shield includes a vertical plate, the side surface of the vertical plate is an inclined surface with a high rear and a low front, the side surface of the vertical plate is parallel to the plane formed by the axes of the two rollers, and a guide inclined surface is provided on the inner side of the protective plate The upper end of the guide inclined plate is connected to the upper side of the vertical plate, and the lower end of the guide inclined plate extends toward the screening space. A guide slot gradually expanding along the longitudinal width is formed between the two guide inclined plates on both sides, and the guide slot is located above the screening space. The feeding mechanism is located on the rear side of the roller shaft and feeds the material to the guide slot. The utility model realizes automatic screening, improves efficiency, and liberates people. However, the automatic screw screening device is not convenient for avoiding the screws from being blocked in the hopper when screening the screws, and is not convenient for regularly arranging the screws when screening, and is not convenient for changing the size of the screened screws according to demand.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and an automatic screw screening device is proposed. Utility Model Content

[0005] The utility model aims to provide a screw automatic screening device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic screw screening device, comprising a box body, a hopper is arranged inside the box body, and a motor is fixedly arranged at the lower end of the hopper inside the box body, and a rotating wheel is fixedly arranged at the lower end of the motor, the rotating wheel is also rotatably connected to the box body, and a connecting rod is rotatably arranged at the lower end of the rotating wheel, the motor and the rotating wheel are symmetrically arranged in two groups along the center line of the box body, and a shift fork is fixedly arranged at the other end of the connecting rod.

[0007] Preferably, the fork is slidably connected to the box body at the same time, and a vibration motor is fixedly arranged on one side of the fork between the connecting rods, corrugated plates are fixedly arranged on both sides of the fork, and the other end of the corrugated plate is fixedly connected to the box body, and the upper and lower sides of the corrugated plate are slidably connected to the box body.

[0008] Preferably, a guide rail is fixedly provided at the lower end of the hopper, and the guide rail is fixedly connected to the box body, the opposite sides of the guide rail are set as inclined surfaces, and a baffle is fixedly provided on the upper side of the guide rail, the baffle is located below the outer edge of the box body, and a mounting plate is fixedly provided in the middle of the inner part of the guide rail.

[0009] Preferably, a hydraulic rod is fixedly provided on one side of the mounting plate one, and the hydraulic rod is evenly distributed along the length of the mounting plate one, and a slider is fixedly provided on the other end of the hydraulic rod, and a conveyor belt is slidably provided on the outer side of the slider, and the conveyor belts are all located on the outer side of the mounting plate one.

[0010] Preferably, the length of the conveyor belt varies with the length of the mounting plate, and the length of the conveyor belt is always smaller than the length of the guide rail. An empty groove is opened on the inner side of the guide rail, and the sizes of the empty grooves are different. A card slot is opened on the outer side of the empty groove through the guide rail.

[0011] Preferably, the slot is arranged in an L shape, a plug is slidably arranged inside the empty slot, and a second mounting plate is fixedly arranged on the outer side of the lower end of the plug, and the second mounting plate is slidably connected to the slot.

[0012] Preferably, a clamping plate is rotatably provided at the middle part of the outer side of the second mounting plate, the clamping plate is slidably connected to the clamping slot, and a rotating shaft is rotatably provided at the overlapping part of the clamping plate and the second mounting plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model is provided with a box, a hopper, a motor, a rotating wheel, a connecting rod, a shift fork and a corrugated plate. Before screening the screws, the screws are first put into the hopper, and when working, the motor is started at the same time, so that the motor drives the rotating wheel, and the rotating wheel drives the connecting rod to make a circular motion, so that the shift fork on the front side can be driven to make a circular motion, so that the screws can be dispersed or removed by the shift fork when the screws fall in, thereby preventing the screws from being blocked when they fall in;

[0015] 2. The utility model adopts the arrangement of guide rails, baffles, mounting plates, hydraulic rods, sliders and conveyor belts. After the screws fall into the guide rails, they will always be in a vertical state under the action of the slopes on both sides. The baffles can knock down the inverted screws with the movement of the screws to return them to their original positions. It can also prevent the screws piled together from entering the next process. The screws can be transported forward by the conveyor belt.

[0016] 3. The utility model arranges the empty slot, the card slot, the plugging block, the second mounting plate, the card plate and the rotating shaft. When the screw moves to the empty slot, the screws that are too small will fall and be collected. This can achieve the effect of screening and classifying the screws. In addition, as the size of the screws changes, plugging blocks can be added to change the screening requirements, thereby improving the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the box body of the utility model;

[0019] Figure 3 It is a partial cross-sectional structural schematic diagram of the guide rail of the utility model;

[0020] Figure 4 For this utility model Figure 3 Enlarged structural diagram at A in the middle.

[0021] In the figure: 1. box body; 2. hopper; 3. motor; 4. wheel; 5. connecting rod; 6. fork; 7. corrugated plate; 8. guide rail; 9. baffle; 10. mounting plate 1; 11. hydraulic rod; 12. slider; 13. conveyor belt; 14. empty slot; 15. clamping slot; 16. plug; 17. mounting plate 2; 18. clamping plate; 19. rotating shaft. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-Figure 2As shown, an automatic screw screening device includes a box body 1, a hopper 2 is arranged inside the box body 1, and a motor 3 is fixedly arranged at the lower end of the hopper 2 inside the box body 1, and a rotating wheel 4 is fixedly arranged at the lower end of the motor 3, the rotating wheel 4 is rotatably connected to the box body 1, and a connecting rod 5 is rotatably arranged at the lower end of the rotating wheel 4, the motor 3 and the rotating wheel 4 are symmetrically arranged in two groups along the center line of the box body 1, and a shift fork 6 is fixedly arranged at the other end of the connecting rod 5. Before screening the screws, the screws are first put into the hopper 2, and when working, the motor 3 is started at the same time, so that the motor 3 drives the rotating wheel 4, and the rotating wheel 4 drives the connecting rod 5 to make a circular motion, so that the shift fork 6 on the front side can be driven to make a circular motion, so that the screws can be dispersed or withdrawn by the shift fork 6 when the screws fall in, thereby preventing the screws from being blocked when they fall in;

[0024] Furthermore, the connecting rod 5 is configured as a two-stage type or a one-stage type. A spring can be installed inside the two-stage type to avoid damage to the device due to too many screws.

[0025] Furthermore, the shift fork 6 can push the screws that are stuck together apart, thereby making the screws fall more smoothly.

[0026] like Figure 3-Figure 4As shown, the fork 6 is slidably connected to the box body 1 at the same time, and a vibration motor is fixedly arranged on one side of the fork 6 between the connecting rods 5, corrugated plates 7 are fixedly arranged on both sides of the fork 6, and the other end of the corrugated plates 7 is fixedly connected to the box body 1, and the upper and lower sides of the corrugated plates 7 are slidably connected to the box body 1, and a guide rail 8 is fixedly arranged at the lower end of the hopper 2, and the guide rail 8 is fixedly connected to the box body 1, and the opposite side of the guide rail 8 is set as an inclined surface, and a baffle 9 is fixedly arranged on the upper side of the guide rail 8, and the baffle 9 is located below the outer edge of the box body 1, and the inner side of the guide rail 8 A mounting plate 10 is fixedly arranged in the middle, a hydraulic rod 11 is fixedly arranged on one side of the mounting plate 10, and the hydraulic rod 11 is evenly distributed along the length of the mounting plate 10, and a slider 12 is fixedly arranged on the other end of the hydraulic rod 11, and a conveyor belt 13 is slidably arranged on the outer side of the slider 12, and the conveyor belt 13 is located on the outer side of the mounting plate 10. After the screw falls into the guide rail 8, it will always be in a vertical state under the action of the slopes on both sides, and the baffle plate 9 can knock down the inverted screw with the movement of the screw to return it to its original position, and it can also avoid The screws that are piled together are prevented from entering the next process, and the screws can be transported forward by the conveyor belt 13; the length of the conveyor belt 13 changes with the length of the mounting plate 10, and the length of the conveyor belt 13 is always less than the length of the guide rail 8, the inner side of the guide rail 8 is provided with an empty slot 14, and the size of the empty slot 14 is different, and the outer side of the empty slot 14 is provided with a card slot 15 through the guide rail 8, and the card slot 15 is set in an L shape, and a plug block 16 is slidably provided inside the empty slot 14, and a mounting plate 17 is fixedly provided on the outer side of the lower end of the plug block 16 The second mounting plate 17 is slidably connected to the card slot 15 at the same time, and a card plate 18 is rotatably provided in the middle of the outer side of the second mounting plate 17. The card plate 18 is slidably connected to the card slot 15 at the same time, and a rotating shaft 19 is rotatably provided at the overlap of the card plate 18 and the second mounting plate 17. When the screw moves to the empty slot 14, the screws that are too small will fall and be collected. In this way, the effect of screening and classifying the screws can be achieved, and as the size of the screws changes, a plug block 16 can be added to change the screening requirements, thereby improving the adaptability of the device.

[0027] Furthermore, the cooperation between the hydraulic rod 11 and the slider 12 can clamp the screw, thereby ensuring the smooth movement of the screw.

[0028] Furthermore, the cooperation between the clamping plate 18 and the clamping slot 15 can better fix the plug 16 inside the empty slot 14 .

[0029] Working principle: When using the automatic screw screening device, first, before screening the screws, first put the screws into the hopper 2, and when working, start the motor 3 at the same time, so that the motor 3 drives the rotating wheel 4, and the rotating wheel 4 drives the connecting rod 5 to make a circular motion, so that the fork 6 on the front side can be driven to make a circular motion, so that the screws can be dispersed or withdrawn by the fork 6 when the screws fall in, thereby avoiding the blockage of the screws when they fall in; secondly, after the screws fall into the guide rail 8, they will always be in a vertical state under the action of the slopes on both sides, and with the movement of the screws, the baffle 9 can knock down the inverted screws and return them to their original positions, and it can also prevent the piled screws from entering the next process, and the screws can be transported to the front through the conveyor belt 13; finally, when the screws move to the empty slot 14, the screws that are too small will fall and be collected, so that the effect of screening and classification of the screws can be achieved, and as the size of the screws changes, the plug 16 can be added to change the screening requirements, thereby improving the adaptability of the device. This is the working principle of the automatic screw screening device.

Claims

1. An automatic screw screening device, comprising a box (1), characterized in that: A hopper (2) is arranged inside the box body (1), and a motor (3) is fixedly arranged at the lower end of the hopper (2) inside the box body (1), and a rotating wheel (4) is fixedly arranged at the lower end of the motor (3), the rotating wheel (4) is rotatably connected to the box body (1), and a connecting rod (5) is rotatably arranged at the lower end of the rotating wheel (4), the motor (3) and the rotating wheel (4) are symmetrically arranged in two groups along the center line of the box body (1), and a shift fork (6) is fixedly arranged at the other end of the connecting rod (5).

2. The automatic screw screening device according to claim 1, characterized in that: The shift fork (6) is simultaneously slidably connected to the box body (1), and a vibration motor is fixedly arranged on one side of the shift fork (6) between the connecting rods (5), and corrugated plates (7) are fixedly arranged on both sides of the shift fork (6), and the other end of the corrugated plate (7) is fixedly connected to the box body (1), and the upper and lower sides of the corrugated plate (7) are slidably connected to the box body (1).

3. The automatic screw screening device according to claim 2, characterized in that: A guide rail (8) is fixedly provided at the lower end of the hopper (2), and the guide rail (8) is fixedly connected to the box body (1), the opposite sides of the guide rail (8) are both arranged as inclined surfaces, and a baffle (9) is fixedly provided on one side of the upper end of the guide rail (8), and the baffle (9) is located below the outer edge of the box body (1), and a mounting plate (10) is fixedly provided in the middle of the inner part of the guide rail (8).

4. The automatic screw screening device according to claim 3 is characterized in that: A hydraulic rod (11) is fixedly arranged on one side of the mounting plate (10), and the hydraulic rod (11) is evenly distributed along the length of the mounting plate (10), and a slider (12) is fixedly arranged on the other end of the hydraulic rod (11), and a conveyor belt (13) is slidably arranged on the outer side of the slider (12), and the conveyor belt (13) is located on the outer side of the mounting plate (10).

5. The automatic screw screening device according to claim 4, characterized in that: The length of the conveyor belt (13) varies with the length of the mounting plate (10), and the length of the conveyor belt (13) is always smaller than the length of the guide rail (8). An empty slot (14) is provided on the inner side of the guide rail (8), and the sizes of the empty slots (14) are different. A clamping slot (15) is provided on the outer side of the empty slot (14) through the guide rail (8).

6. The automatic screw screening device according to claim 5, characterized in that: The card slot (15) is arranged in an L shape, a plug block (16) is slidably arranged inside the empty slot (14), and a second mounting plate (17) is fixedly arranged on the outer side of the lower end of the plug block (16), and the second mounting plate (17) is slidably connected to the card slot (15).

7. The automatic screw screening device according to claim 6, characterized in that: A clamping plate (18) is rotatably arranged at the middle part of the outer side of the second mounting plate (17), and the clamping plate (18) is slidably connected to the clamping groove (15) at the same time, and a rotating shaft (19) is rotatably arranged at the overlapping part of the clamping plate (18) and the second mounting plate (17).

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