Screening machine for screw production

Abstract

The utility model discloses a screw production screening machine which comprises a bottom plate, a screening box is arranged on the bottom plate, a feeding hopper is fixedly connected to the top end of the screening box in a penetrating and inserting mode, a multi-time screening mechanism is arranged in the screening box, and the multi-time screening mechanism comprises a first screen arranged in the screening box; and the second screen mesh is arranged in the screening box, located under the first screen mesh and used for screening out sundries and chippings. According to the screw screening device, due to the arrangement of the first screen and the second screen, when screws are screened for the first time, small screws, sundries and chippings fall into the surface of the second screen from screening holes of the first screen, and under the action of the driving mechanism, the second screen screens the sundries and the chippings in the small screws; when the screw screening machine is used, impurities and chippings are discharged from the impurity discharging port, the effect of removing impurities during screw screening is achieved, and compared with the screening machine, impurities can be removed during screening, and the screw screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screening machines, in particular to a screw production screening machine. Background Art

[0002] Screws are tools that use the physical and mathematical principles of the circular rotation of an object's inclined surface and friction to gradually tighten objects and parts. Screws are an indispensable industrial necessity in daily life. In the production of screws, necessary screening work needs to be carried out to achieve a higher pass rate.

[0003] At present, the Chinese utility model patent with announcement number CN 212791918 U discloses a screw vibration screening machine, including a frame, a vibration motor is arranged on the frame, a feed channel and a discharge channel are also arranged on the frame, a plurality of guide channels arranged in parallel with each other are arranged between the feed channel and the discharge channel, one end of the guide channel is connected to the feed channel, and the other end is connected to the discharge channel, a screening hole is opened at the bottom of the guide channel, and a receiving trough is arranged below the screening hole; a plurality of angle steels arranged in parallel with each other are arranged between the feed channel and the discharge channel, the guide channel is formed on the angle steel, guide plates are arranged on both sides of the angle steel, a baffle is fixed at the bottom of the guide plate, and a screening hole is formed at the bottom of the guide plate where the baffle is not arranged. The screw vibration screening machine has the characteristics of fast screening and convenient use, complete overall functions and strong practicality.

[0004] When bolts are produced and shipped out of the factory, they will be mixed with a large amount of sundries and debris. The above-mentioned screening machine only screens the screws once, causing smaller bolts and sundries and debris to fall through the screening holes together. The smaller bolts also need to be cleaned, which increases the workload of screw screening and affects the efficiency of bolt screening. For this reason, we propose a screw production screening machine to solve the problems of the above-mentioned screw screening machine. Utility Model Content

[0005] The purpose of the utility model is to provide a screw production screening machine to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a screw production screening machine, comprising a bottom plate, a screening box is arranged on the bottom plate, a feed hopper is fixedly inserted and connected to the top of the screening box, and multiple screening mechanisms are arranged inside the screening box, and the multiple screening mechanisms include:

[0007] A first screen, which is arranged inside the screening box and is used for screening screws;

[0008] The second screen is arranged inside the screening box and is located directly below the first screen, and is used for screening out sundries and debris.

[0009] Preferably, a first discharge port for screw discharge is provided on one side of the screening box, a first material guide plate is fixedly connected to the bottom of the first discharge port, two first baffles are fixedly connected to the top sides of the first material guide plate, a second discharge port is provided on one side of the screening box, a second material guide plate is fixedly connected to the bottom of the second discharge port, two second baffles are fixedly connected to the top of the second material guide plate, and an impurity discharge port is provided at the bottom of the screening box.

[0010] Preferably, an elastic component is provided at the bottom end of the screening box, a material receiving component is provided below and on one side of the screening box, and a driving mechanism is provided at the top end of the bottom plate.

[0011] Preferably, the elastic component includes a plurality of springs, the plurality of springs are fixedly disposed at the bottom end of the screening box, and the bottom ends of the plurality of springs are fixedly connected to the top end of the bottom plate.

[0012] Preferably, the material receiving assembly includes a first material receiving box and a second material receiving box, the first material receiving box is provided with a partition inside, one side of the partition is a first storage cavity, the other side of the partition is a second storage cavity, and the second material receiving box is provided directly below the screening box.

[0013] Preferably, the driving mechanism includes a fixed block, the fixed block is fixedly connected to one side of the top of the base plate, the top of the fixed block is fixedly connected to a motor, the output shaft of the motor is fixedly connected to a cam, and the outer wall of the cam is fit-connected to the bottom end of the screening box.

[0014] Preferably, a cover plate is provided at the top of the feed hopper, a hinge is provided between one side of the cover plate and the top of the feed hopper, and a handle is fixedly connected to the top of the cover plate.

[0015] Technical effects and advantages of the utility model:

[0016] The utility model arranges the first screen and the second screen, so that when the screws are screened for the first time, smaller screws, debris and chips fall from the screening holes of the first screen onto the surface of the second screen, and under the action of the driving mechanism, the second screen screens the debris and chips in the smaller screws, and the debris and chips are discharged from the impurity discharge port, thereby achieving the effect of removing impurities when screening the screws. Compared with the above-mentioned screening machine, the utility model can remove impurities during screening, thereby improving the efficiency of screw screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a side structural schematic diagram of the utility model.

[0019] Figure 3 It is a schematic diagram of the internal structure of the utility model.

[0020] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0021] In the figure: 1. bottom plate; 2. screening box; 3. feed hopper; 4. first discharge port; 5. second discharge port; 6. impurity discharge port; 7. first screen; 8. first guide plate; 9. first baffle; 10. second screen; 11. second guide plate; 12. second baffle; 13. spring; 14. fixing block; 15. cam; 16. motor; 17. first receiving box; 18. partition; 19. first storage cavity; 20. second storage cavity; 21. second receiving box; 22. cover plate; 23. hinge; 24. handle. 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] The utility model provides Figure 1-4 A screw production screening machine shown in the figure comprises a bottom plate 1, a screening box 2 is arranged on the bottom plate 1, a feed hopper 3 is fixedly inserted and connected to the top of the screening box 2, a cover plate 22 is arranged on the top of the feed hopper 3, a hinge 23 is arranged between one side of the cover plate 22 and the top of the feed hopper 3, and a handle 24 is fixedly connected to the top of the cover plate 22:

[0024] Preferably, a multiple screening mechanism is arranged inside the screening box 2 for screening and removing impurities from the screws. The multiple screening mechanism includes a first screen 7 arranged inside the screening box 2 for screening the screws, a second screen 10 arranged inside the screening box 2 and located directly below the first screen 7 for screening out impurities and debris, and the screening holes of the first screen 7 are larger than the screening holes of the second screen 10.

[0025] Preferably, a first discharge port 4 for screw discharge is provided on one side of the screening box 2, a first material guide plate 8 is fixedly connected to the bottom of the first discharge port 4, two first baffles 9 are fixedly connected to the top sides of the first material guide plate 8, a second discharge port 5 is provided on one side of the screening box 2, a second material guide plate 11 is fixedly connected to the bottom of the second discharge port 5, two second baffles 12 are fixedly connected to the top of the second material guide plate 11, and an impurity discharge port 6 is provided at the bottom end of the screening box 2.

[0026] A further elastic component is arranged at the bottom end of the screening box 2, and the elastic component includes multiple springs 13. The multiple springs 13 are fixedly arranged at the bottom end of the screening box 2, and the bottom ends of the multiple springs 13 are fixedly connected to the top end of the bottom plate 1. There are four springs 13, which are respectively arranged at the four corners of the bottom end of the screening box 2.

[0027] Furthermore, the material receiving assembly is arranged below and on one side of the screening box 2, and the material receiving assembly includes a first material receiving box 17 and a second material receiving box 21. A partition 18 is arranged inside the first material receiving box 17, one side of the partition 18 is a first receiving chamber 19, and the other side of the partition 18 is a second receiving chamber 20. The second material receiving box 21 is arranged directly below the screening box 2, and the second material receiving box 21 is located directly below the impurity discharge port 6. The first receiving chamber 19 is used to collect screws discharged from the first discharge port 4, the second receiving chamber 20 is used to collect screws discharged from the second discharge port 5, and the second material receiving box 21 is used to collect sundries and debris.

[0028] Finally, a driving mechanism is arranged at the top of the base plate 1, and the driving mechanism includes a fixed block 14, which is fixedly connected to one side of the top of the base plate 1, and a motor 16 is fixedly connected to the top of the fixed block 14, and a cam 15 is fixedly connected to the output shaft of the motor 16, and the outer wall of the cam 15 is fitted and connected to the bottom of the screening box 2. When the screws are screened, the motor 16 is started to pour the screws from the feed hopper 3 into the interior of the screening box 2. Under the action of the motor 16 and the cam 15, the screening box 2 is driven to shake, and the first screen 7 screens out the smaller screws, and the larger screws are discharged from the first discharge port 4, and enter the first receiving chamber 19 through the guide of the first guide plate 8. The smaller screws, debris and debris fall to the top of the second screen 10. Under the action of the second screen 10, the debris, debris and smaller screws are screened, and the debris and debris fall to the bottom of the second screen 10 and are discharged from the impurity discharge port 6. After entering the second material receiving box 21 , the smaller screws are discharged from the second material discharging port 5 and enter the second receiving chamber 20 .

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A screw production screening machine, comprising a bottom plate (1), a screening box (2) is arranged on the bottom plate (1), a feed hopper (3) is fixedly connected to the top of the screening box (2), It is characterized in that The screening box (2) is provided with a multiple screening mechanism inside, and the multiple screening mechanism comprises: A first screen (7), the first screen (7) being arranged inside the screening box (2) and used for screening screws; A second screen (10), the second screen (10) is arranged inside the screening box (2) and is located directly below the first screen (7), and is used to screen out debris and debris; a first discharge port (4) for screw discharge is arranged on one side of the screening box (2), a first guide plate (8) is fixedly connected to the bottom of the first discharge port (4), two first baffles (9) are fixedly connected to the top sides of the first guide plate (8), a second discharge port (5) is arranged on one side of the screening box (2), and the second discharge port (5) is fixedly connected to the bottom of the first discharge port (4). The bottom of the material port (5) is fixedly connected to a second material guide plate (11), the top of the second material guide plate (11) is fixedly connected to two second baffles (12), the bottom of the screening box (2) is provided with an impurity discharge port (6); the bottom of the screening box (2) is provided with an elastic component, the bottom and one side of the screening box (2) are provided with a material receiving component, and the top of the bottom plate (1) is provided with a driving mechanism; the elastic component includes a plurality of springs (13), and the plurality of springs (13) are fixedly arranged on the screening box (2). ), the bottom ends of the plurality of springs (13) are fixedly connected to the top end of the bottom plate (1); the material receiving assembly comprises a first material receiving box (17) and a second material receiving box (21); a partition (18) is provided inside the first material receiving box (17); one side of the partition (18) is a first receiving cavity (19); the other side of the partition (18) is a second receiving cavity (20); the second material receiving box (21) is provided directly below the screening box (2); the driving mechanism comprises a fixed block (14); the fixed block A fixed block (14) is fixedly connected to one side of the top of the bottom plate (1); a motor (16) is fixedly connected to the top of the fixed block (14); a cam (15) is fixedly connected to the output shaft of the motor (16); an outer wall of the cam (15) is fitted and connected to the bottom of the screening box (2); a cover plate (22) is provided at the top of the feed hopper (3); a hinge (23) is provided between one side of the cover plate (22) and the top of the feed hopper (3); and a handle (24) is fixedly connected to the top of the cover plate (22).

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