Screw screening device for automatic screw machine

Abstract

The utility model discloses a screw screening device for an automatic screw machine, which comprises a bottom plate and a screening plate arranged at the top of the bottom plate, two supporting plates are symmetrically and fixedly connected to the top of the screening plate, a screening assembly is arranged at the tops of the supporting plates, and the screening assembly comprises a frame mounted at the tops of the supporting plates and a plurality of screening rods uniformly and fixedly connected in the frame. A cleaning assembly used for cleaning the screen rods is arranged at the top of the bottom plate and comprises a movable plate arranged at the top of the frame, a plurality of push rods evenly and fixedly connected to the bottom of the movable plate and a driving assembly arranged at the top of the bottom plate and used for driving the movable plate to move at the top of the frame. By means of the structure, the multiple screen rods are evenly arranged to form the whole screen, the gaps between the screen rods can be used for screening screws, the push rod is arranged to move between the screen rods to complete cleaning work of blocking objects of sundries between the screen rods, the cleaning work of the screen is more convenient, and the good cleaning effect of the screen is guaranteed; and the high efficiency of screening is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of automatic screw machine equipment, and in particular to a screw screening device for an automatic screw machine. Background Technology

[0002] With the continuous development of industrial automation, automatic screw machines have been widely used in various production lines. Existing screw supply systems mostly use vibratory feeders or gravity feeding methods, but problems such as screw mixing may occur during the screw screening and distribution process, affecting production efficiency and product quality.

[0003] In the prior art, a search revealed a Chinese patent entitled "A Screw Screening Device for an Automatic Screw Locking Machine," application number "202021741274.3." This patent mainly includes a screening box and a door, connected by hinges. A funnel is fixedly installed at the center of one side of the upper surface of the screening box, and a first support plate is horizontally fixedly installed at the center of one side of the screening box. A motor is fixedly installed at the center of the upper surface of the first support plate, and a rotating shaft is fixedly installed on the output shaft of the motor. Several eccentric wheels are fixedly installed on the surface of the rotating shaft. A filter plate is movably installed at an angle inside the screening box, with the lower surface of the filter plate always in contact with the eccentric wheels. Although the aforementioned automatic screw locking machine can prevent screws from clogging the filter plate and thus ensuring normal screening by using an electric telescopic rod, an L-shaped plate, and a steel brush, the steel brush, positioned at the bottom of the filter plate for cleaning, may cause screws to easily become stuck in the holes at the top of the filter plate because the screws are screened from top to bottom. At this point, the steel brush located at the bottom of the filter plate may have difficulty effectively cleaning the screws clogging the holes at the top of the filter plate due to its limited position; and even if the steel brush can reach some of the screws clogging the holes, the cleaned screws may remain in the holes again due to the filter plate's internal structure. This repeated clogging and cleaning not only increases the workload but may also cause unnecessary wear on the filter plate, further affecting the efficiency and stability of the screening process. Therefore, this invention provides a screw screening device for an automatic screw machine to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to provide a screw screening device for an automatic screw machine. Multiple screen rods are evenly arranged to form an integral screen. The gaps between the screen rods can be used to screen screws. The blockage of debris between the screen rods can be cleared by setting push rods to move between the screen rods, making the screen cleaning more convenient and ensuring a good cleaning effect, so as to ensure the high efficiency of screening.

[0005] To achieve the above objectives, an automatic screw sieving device for a screw machine is provided, comprising a base plate and a sieving plate disposed on top of the base plate. Two support plates are symmetrically fixedly connected to the top of the sieving plate. A screening assembly is provided on the top of the support plates. The screening assembly includes a frame installed on the top of the support plates and a plurality of screen rods uniformly fixedly connected inside the frame. A cleaning assembly for cleaning the screen rods is provided on the top of the base plate. The cleaning assembly includes a movable plate disposed on top of the frame and a plurality of push rods uniformly fixedly connected to the bottom of the movable plate. A drive assembly is disposed on the top of the base plate for moving the movable plate on the top of the frame. The push rods are respectively inserted between every two adjacent screen rods. A vibration assembly for driving the sieving plate to vibrate is provided between the base plate and the sieving plate.

[0006] According to the aforementioned screw screening device for an automatic screw machine, the drive assembly includes two mounting plates symmetrically and fixedly connected to the top of a base plate, a lead screw rotatably connected to the top of one of the mounting plates, and a guide rod fixedly connected to the top of the other mounting plate. Slide plates are installed at both ends of the movable plates, wherein the slide plate near the lead screw is threadedly connected to the lead screw, and the slide plate near the guide rod is slidably connected to the guide rod. One end of the lead screw penetrates the interior of the mounting plate and extends to the outside of the mounting plate, and a rotating handle is fixedly connected to the end of the lead screw located on the outside of the mounting plate.

[0007] According to the aforementioned screw screening device for an automatic screw machine, the vibration assembly includes four springs evenly installed between the base plate and the screening plate, two symmetrically fixedly connected L-shaped connecting plates to the bottom of the screening plate, two fixed plates fixedly connected to the top of the base plate and located on one side of the connecting plates, a connecting shaft rotatably connected between the fixed plates, two rotating plates fixedly connected to the outside of the connecting shaft and adjacent to the connecting plates, and a motor fixedly connected to the top of the base plate and located on one side of the fixed plates. The connecting shaft is fixedly connected to the output shaft of the motor. Multiple protruding plates are fixedly connected at equal intervals to the outside of each rotating plate, and each protruding plate can contact the bottom of the corresponding connecting plate.

[0008] According to the aforementioned screw screening device for an automatic screw machine, the frame is detachably fixed to the top of the support plate by bolts, and the movable plate is also detachably fixed to the top of the slide plate by bolts.

[0009] According to the aforementioned screw screening device for an automatic screw machine, rollers are installed on the side of the connecting plate that contacts the convex plate.

[0010] According to the aforementioned screw screening device for an automatic screw machine, the top of the screening plate is inclined downwards.

[0011] This utility model has the following beneficial effects:

[0012] 1. Compared with the existing technology, this screw screening device for an automatic screw machine has multiple screen rods evenly arranged to form an integral screen. The gaps between the screen rods can be used to screen screws. The blockage of debris between the screen rods can be cleared by setting push rods to move between the screen rods, making the screen cleaning more convenient and ensuring a good cleaning effect, so as to ensure the high efficiency of screening.

[0013] 2. Compared with the prior art, the screw screening device for the automatic screw machine has a vibration component set below the screening plate to make the screening plate vibrate. The vibration causes the screw to move continuously on the screen rod, thereby driving the screening plate to vibrate and ensuring the screening effect of the screw.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a schematic diagram of the first overall structure of a screw screening device for an automatic screw machine according to the present invention;

[0017] Figure 2 This is a schematic diagram of the second overall structure of a screw screening device for an automatic screw machine according to the present invention;

[0018] Figure 3 This is a schematic diagram of the screening component structure of an automatic screw machine sieve device according to the present invention;

[0019] Figure 4 This is a schematic diagram of the vibration component structure of an automatic screw sieving device for a screw machine according to the present invention;

[0020] Figure 5 This utility model relates to a screw screening device for an automatic screw machine. Figure 3 Enlarged structural diagram at point A in the middle.

[0021] Legend:

[0022] 1. Base plate; 2. Screen plate; 3. Support plate; 4. Frame; 5. Screen rod; 6. Mounting plate; 7. Lead screw; 8. Slide plate; 9. Guide rod; 10. Movable plate; 11. Rotary handle; 12. Spring; 13. Fixing plate; 14. Coupling shaft; 15. Connecting plate; 16. Rotating plate; 17. Motor; 18. Protruding plate; 19. Roller; 20. Push rod. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figure 1-5 This utility model discloses a screw screening device for an automatic screw machine, comprising a base plate 1 and a screening plate 2 disposed on the top of the base plate 1. Two support plates 3 are symmetrically fixedly connected to the top of the screening plate 2. A screening assembly is provided on the top of the support plates 3, comprising a frame 4 installed on the top of the support plates 3 and a plurality of screen rods 5 uniformly fixedly connected inside the frame 4. A cleaning assembly for cleaning the screen rods 5 is provided on the top of the base plate 1, comprising a movable plate 10 disposed on the top of the frame 4 and a plurality of push rods 20 uniformly fixedly connected to the bottom of the movable plate 10, and a push rod 20 disposed on the top of the base plate 1 for driving the movable plate 10 within the frame 4. The top-moving drive assembly has push rods 20 inserted between each pair of adjacent screen rods 5. The drive assembly includes two mounting plates 6 symmetrically fixed to the top of the base plate 1, a lead screw 7 rotatably connected to the top of one of the mounting plates 6, and a guide rod 9 fixedly connected to the top of the other mounting plate 6. Slide plates 8 are installed at both ends of the movable plate 10. The slide plate 8 near the lead screw 7 is threadedly connected to the lead screw 7, and the slide plate 8 near the guide rod 9 is slidably connected to the guide rod 9. One end of the lead screw 7 passes through the interior of the mounting plate 6 and extends to the outside of the mounting plate 6. A rotating handle 11 is fixedly connected to the end of the lead screw 7 located on the outside of the mounting plate 6.

[0025] Multiple screen rods 5 are evenly arranged to form a complete screen. The gaps between the screen rods 5 are used to screen screws. The screws move along the screen rods 5 to complete the screening work. When it is necessary to clean the screws that are clogging the gaps between the screen rods 5, the handle 11 is turned to drive the lead screw 7 to rotate. The rotating lead screw 7 moves the slide plate 8, which in turn moves the movable plate 10. The moving movable plate 10 simultaneously drives the push rod 20 to move in the gaps between the screen rods 5. The push rod 20 can effectively clean the debris between the screen rods 5, making the screen cleaning work more convenient and ensuring a good cleaning effect to guarantee the high efficiency of screening.

[0026] To improve screening efficiency, a vibration assembly for driving the screen plate 2 to vibrate is provided between the base plate 1 and the screen plate 2. The vibration assembly includes four springs 12 evenly installed between the base plate 1 and the screen plate 2, two L-shaped connecting plates 15 symmetrically fixed to the bottom of the screen plate 2, two fixed plates 13 fixed to the top of the base plate 1 and located on one side of the connecting plates 15, a connecting shaft 14 rotatably connected between the fixed plates 13, two rotating plates 16 fixed to the outside of the connecting shaft 14 and adjacent to the connecting plates 15, and a motor 17 fixed to the top of the base plate 1 and located on one side of the fixed plates 13. The connecting shaft 14 is fixedly connected to the output shaft of the motor 17. Multiple protruding plates 18 are fixedly connected at equal intervals on the outside of the rotating plates 16. Each protruding plate 18 can contact the bottom of the corresponding connecting plate 15. Rollers 19 are installed on the side of the connecting plate 15 that contacts the protruding plate 18 to reduce friction between the protruding plate 18 and the connecting plate 15.

[0027] A spring 12 is installed between the base plate 1 and the screen plate 2 to ensure that the screen plate 2 can generate appropriate vibration during operation, promoting the uniform distribution of screws. Simultaneously with screening, the motor 17 starts, driving the connecting shaft 14 to rotate. The connecting shaft 14 drives the rotating plate 16 to rotate, and the protruding plate 18 on the rotating plate 16 contacts the bottom of the connecting plate 15, causing the connecting plate 15 and the screen plate 2 on it to move downwards. When the rotating plate 16 continues to rotate and separates from the connecting plate 15, the elastic connection of the spring 12 allows the screen plate 2 to return to its original position and vibrate. This vibration causes the screws to move continuously on the screen rod 5, ensuring the effective screening of the screws.

[0028] The top of the screening plate 2 is tilted downwards to facilitate the sliding of screws and screening. The frame 4 is detachably fixed to the top of the support plate 3 by bolts, and the movable plate 10 is also detachably fixed to the top of the slide plate 8 by bolts, which facilitates the disassembly, maintenance and replacement of the screen.

[0029] Working Principle: Multiple screen rods 5 are evenly arranged to form a complete screen. The gaps between the screen rods 5 are used to screen screws. The screws move along the screen rods 5 to complete the screening process. When it is necessary to clean the screws that are clogging the gaps between the screen rods 5, the handle 11 is turned to drive the lead screw 7 to rotate. The rotating lead screw 7 moves the slide plate 8, which in turn moves the movable plate 10. The moving movable plate 10 simultaneously drives the push rod 20 to move within the gaps between the screen rods 5. The push rod 20 can effectively clean the debris between the screen rods 5, making the screen cleaning work more convenient and ensuring a good cleaning effect to guarantee the high efficiency of screening.

[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A screw screening device for an automatic screw machine, characterized in that, The device includes a base plate (1) and a screen plate (2) located on top of the base plate (1). Two support plates (3) are symmetrically fixedly connected to the top of the screen plate (2). A screening assembly is provided on the top of the support plate (3). The screening assembly includes a frame (4) installed on the top of the support plate (3) and a plurality of screen rods (5) uniformly fixedly connected inside the frame (4). A cleaning assembly for cleaning the screen rods (5) is provided on the top of the base plate (1). The cleaning assembly includes a movable plate (10) located on the top of the frame (4) and a plurality of push rods (20) uniformly fixedly connected to the bottom of the movable plate (10) and a driving assembly located on the top of the base plate (1) for moving the movable plate (10) on the top of the frame (4). The push rods (20) are respectively inserted between every two adjacent screen rods (5). A vibration assembly for driving the screen plate (2) to vibrate is provided between the base plate (1) and the screen plate (2).

2. The screw screening device for an automatic screw machine according to claim 1, characterized in that, The drive assembly includes two mounting plates (6) symmetrically fixed to the top of the base plate (1), a lead screw (7) rotatably connected to the top of one of the mounting plates (6), and a guide rod (9) fixedly connected to the top of the other mounting plate (6). Slide plates (8) are installed at both ends of the movable plate (10). The slide plate (8) near the lead screw (7) is threadedly connected to the lead screw (7), and the slide plate (8) near the guide rod (9) is slidably connected to the guide rod (9). One end of the lead screw (7) passes through the interior of the mounting plate (6) and extends to the outside of the mounting plate (6). A handle (11) is fixedly connected to the end of the lead screw (7) located on the outside of the mounting plate (6).

3. The screw screening device for an automatic screw machine according to claim 2, characterized in that, The vibration assembly includes four springs (12) evenly installed between the base plate (1) and the screen plate (2), two connecting plates (15) symmetrically fixed to the bottom of the screen plate (2) and having an L-shaped structure, two fixed plates (13) fixed to the top of the base plate (1) and located on one side of the connecting plates (15), a connecting shaft (14) rotatably connected between the fixed plates (13), two rotating plates (16) fixed to the outside of the connecting shaft (14) and adjacent to the connecting plates (15), and a motor (17) fixed to the top of the base plate (1) and located on one side of the fixed plates (13). The connecting shaft (14) is fixedly connected to the output shaft of the motor (17). Multiple protrusions (18) are fixedly connected at equal intervals on the outside of the rotating plates (16). Each of the protrusions (18) can contact the bottom of the corresponding connecting plate (15).

4. The screw screening device for an automatic screw machine according to claim 3, characterized in that, The frame (4) is detachably fixed to the top of the support plate (3) by bolts, and the movable plate (10) is also detachably fixed to the top of the slide plate (8) by bolts.

5. The screw screening device for an automatic screw machine according to claim 4, characterized in that, Rollers (19) are installed on the side of the connecting plate (15) that contacts the protruding plate (18).

6. The screw screening device for an automatic screw machine according to claim 5, characterized in that, The top of the sieve plate (2) is inclined downward.

Images