Padlock marble classification screening device
By designing a padlock pin grading and screening device with two sets of screening mechanisms and a guide plate, the problems of low efficiency and poor accuracy in padlock pin grading and screening were solved, and efficient and accurate pin grading and classification collection were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PUJIANG YA HUAN LOCKS CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-12
AI Technical Summary
In the existing technology, the grading and screening of padlock pins is inefficient and inaccurate. Manual screening is prone to errors, and simple mechanical screening equipment cannot achieve efficient grading and screening.
A padlock pin grading and screening device with two sets of screening mechanisms was designed. The device uses a drive motor to drive the rotating roller assembly and auger blades for precise grading and screening, and combines the middle guide plate, left guide plate and right guide plate for classified collection.
It improves the accuracy and efficiency of padlock pin selection, ensures the consistency of pin size within the same batch, reduces human error, and achieves efficient grading and classification collection of padlock pins.
Smart Images
Figure CN224221887U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of padlock manufacturing technology, and in particular to a padlock pin grading and screening device. Background Technology
[0002] In the production of padlocks, the dimensional accuracy of the padlock pins has a crucial impact on the quality and performance of the padlocks. Padlock pins need to be graded and screened according to different sizes to ensure good dimensional consistency within the same batch and specification. Currently, most padlock pin grading and screening is done manually. Manual screening is not only inefficient but also prone to errors, resulting in padlock pins with low dimensional accuracy that fails to meet production requirements. Some simple mechanical screening equipment is used, but its structure is relatively basic, and its accuracy and efficiency need improvement, making it impossible to achieve efficient grading and screening of padlock pins. Therefore, we propose a padlock pin grading and screening device. Utility Model Content
[0003] The purpose of this invention is to address the problems existing in the background technology by proposing a padlock pin grading and screening device.
[0004] The technical solution of this utility model is as follows: A padlock pin grading and screening device includes a screening box. A drive motor is installed at the bottom of the screening box. Two sets of screening mechanisms are installed in the screening box. Each set of screening mechanisms includes a screening cylinder. A rotating roller assembly is installed on the inner ring of the screening cylinder. The rotating roller assembly includes a rotating shaft. An auger blade is installed on the outer ring of the rotating shaft inside the screening mechanism. Multiple sets of actuating rods are installed on one side of the auger blade on the outer ring of the rotating shaft. A guide hopper is installed between the two sets of screening mechanisms. A pulley is fitted on the output end of the drive motor and one end of one set of rotating shafts on the outside of the screening box. A pulley is fitted on the outer ring of one end of the other set of rotating shafts. A belt is fitted on the outer ring of both sets of pulleys in the groove. A middle guide plate is installed in the screening box. A left guide plate and a right guide plate are respectively installed on both sides of the middle guide plate inside the screening box. A feed hopper is installed above one set of screening mechanisms above the screening box.
[0005] Preferably, the two sets of screening mechanisms are arranged horizontally in an up-down manner. The mounting end of the auger blade is installed corresponding to the rotating shaft. The screening cylinder is provided with a feed inlet above the auger blade. One end of the guide hopper is installed corresponding to the feed inlet on the lower set of screening mechanisms, and the mounting end of the feed hopper is installed corresponding to the feed inlet on the upper set of screening mechanisms.
[0006] Preferably, multiple sets are provided below each of the two sets of screening cylinders, with the inner diameter of the upper set of screening cylinders being larger than that of the lower set of screening cylinders. The other end of the guide hopper is installed corresponding to the position on the upper set of screening cylinders. Bearings are fitted on the outer rings of both ends of the rotating shaft. Shaft holes are provided on both sides of the screening box, and the outer rings of the bearings are installed corresponding to the inner walls of the shaft holes.
[0007] Preferably, the mounting end of the actuating rod is installed corresponding to the outer ring of the rotating shaft, and multiple sets of the actuating rods correspond to multiple positions on the screening cylinder.
[0008] Preferably, each of the screening cylinders is provided with a discharge hopper at the end away from the auger blades, the mounting ends of the left and right guide plates are respectively installed corresponding to the inner wall of the screening box, the discharge port of the discharge hopper is respectively installed corresponding to the upper side of the left and right guide plates, and the mounting end of the middle guide plate is installed corresponding to the inner wall of the screening box.
[0009] Preferably, the two sides of the middle guide plate are respectively installed close to the left guide plate and the right guide plate. The middle guide plate is located below a set of screening cylinders. The middle guide plate, the left guide plate and the right guide plate are all inclined. A strip groove is opened on one side of the screening box. One end of the middle guide plate, the left guide plate and the right guide plate are installed corresponding to the strip groove.
[0010] Preferably, the mounting ends of the two sets of pulleys are respectively mounted to the output end of the drive motor and one end of the outer ring of a set of rotating shafts, and the mounting end of the pulley is mounted to one end of the outer ring of another set of rotating shafts. The pulley has two sets of grooves. One set of belts is mounted to the pulley on the drive motor and the pulley on the second set of belts, and the other set of belts is mounted to the pulley on one end of a set of rotating shafts and the pulley on the second set of belts, with the pulley on the first set of belts and the pulley on the second set of belts corresponding to each other.
[0011] Compared with the prior art, the present invention has the following beneficial technical effects:
[0012] This utility model has a simple overall structure. The two sets of screening mechanisms enable precise grading and screening of padlock pins, improving the accuracy and efficiency of screening, ensuring the consistency of the size of padlock pins in the same batch, and reducing manual screening errors. At the same time, the auger blades effectively guide the padlock pins smoothly through the screening mechanism, avoiding the accumulation of padlock pins and further improving screening efficiency. The middle guide plate, left guide plate, and right guide plate are designed for padlock pins of different specifications, facilitating the classification and collection of the screened padlock pins for subsequent processing and use. Attached Figure Description
[0013] Figure 1This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a partial cross-sectional view of the screening box in this utility model;
[0015] Figure 3 This is a partial sectional view of the utility model.
[0016] Reference numerals in the attached drawings: 1. Screening box; 2. Drive motor; 3. Screening mechanism; 31. Rotating roller assembly; 311. Rotating shaft; 312. Screw blade; 313. Actuating rod; 314. Discharge hopper; 32. Screening cylinder; 4. Belt pulley one; 5. Belt pulley two; 6. Belt; 7. Guide hopper; 8. Middle guide plate; 9. Left guide plate; 10. Right guide plate; 11. Feed hopper; 12. Bearing. Detailed Implementation
[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Example
[0018] like Figure 1-3 As shown, this utility model proposes a padlock pin grading and sorting device, including a sorting box 1. The sorting box 1 contains two sets of sorting mechanisms 3, arranged horizontally in a vertical orientation. This horizontal arrangement allows for the grading and sorting of padlock pins of different specifications. A central guide plate 8 is provided inside the sorting box 1, with its mounting end corresponding to the inner wall of the sorting box 1. Left guide plates 9 and right guide plates 10 are respectively arranged on both sides of the central guide plate 8 within the sorting box 1, with their mounting ends also corresponding to the inner wall of the sorting box 1. Both left and right guide plates 9 and 10 are L-shaped. The central guide plate 8, left guide plate 9, and right guide plate 10... The mounting ends of plate 10 are fixedly connected to the inner wall of screening box 1. The two sides of the middle guide plate 8 are respectively installed close to the left guide plate 9 and the right guide plate 10. The two sides of the middle guide plate 8 are fixedly connected to the left guide plate 9 and the right guide plate 10. The middle guide plate 8, the left guide plate 9 and the right guide plate 10 are all set in an inclined shape. The inclined shape of the middle guide plate 8, the left guide plate 9 and the right guide plate 10 can guide the screened padlock pins to feed. A strip groove is opened on one side of screening box 1. One end of the middle guide plate 8, the left guide plate 9 and the right guide plate 10 is installed in the corresponding strip groove. The setting of the strip groove and the middle guide plate 8, the left guide plate 9 and the right guide plate 10 facilitates the discharge of padlock pins.
[0019] Each screening mechanism 3 includes a screening cylinder 32. Multiple sets of 13 are provided below each of the two screening cylinders 32. The inner diameter of the 13 on the upper screening cylinder 32 is larger than that on the lower screening cylinder 32. The different specifications of the 13 on the two screening cylinders 32 enable precise grading and screening of padlock pins, improving the accuracy and efficiency of screening and ensuring the consistency of the size of padlock pins in the same batch. A rotating roller assembly 31 is provided on the inner ring of the screening cylinder 32. The rotating roller assembly 31 includes a rotating shaft 311. Bearings 12 are fitted on the outer rings of both ends of the rotating shaft 311. The inner rings of the bearings 12 are fixedly connected to the outer rings of the rotating shaft 311. Shaft holes are provided on both sides of the screening box 1. The outer rings of the bearings 12 are installed correspondingly to the inner walls of the shaft holes. Fixedly connected to the inner wall of the shaft hole, the bearing 12 allows the rotating shaft 311 to rotate more smoothly. An auger blade 312 is installed on the outer ring of the rotating shaft 311 within the screening mechanism 3. The mounting end of the auger blade 312 corresponds to the rotating shaft 311 and is fixedly connected to it. The auger blade 312 can stably feed the padlock balls that fall into the screening cylinder 32, guiding the padlock balls to be screened. Multiple sets of actuating rods 313 are installed on one side of the auger blade 312 on the outer ring of the rotating shaft 311. The mounting end of the actuating rod 313 corresponds to the outer ring of the rotating shaft 311 and is fixedly connected to it. The device allows for the actuation of padlock pins within the screening cylinder 32, enabling better screening. Multiple sets of actuating levers 313 correspond to multiple sets of levers 13 on the screening cylinder 32. Actuated padlock pins automatically fall through levers 13, completing the screening process. A guide hopper 7 is positioned between the two screening mechanisms 3. Each screening cylinder 32 has a feed inlet located above the auger blades 312. One end of the guide hopper 7 is fixedly connected to the feed inlet on the lower screening mechanism 3, while the other end is fixedly connected to the levers 13 on the upper screening cylinder 32. The fixed connection and guide hopper 7 guides the padlock pins screened in the upper set of screening mechanisms 3 into the lower set of screening cylinders 32, allowing for a second screening of the padlock pins after the first screening. Each set of screening cylinders 32 has a discharge hopper 314 at the end furthest from the auger blades 312. The installation end of the discharge hopper 314 is fixedly connected to the end of the screening cylinder 32 furthest from the auger blades 312. The discharge hopper 314 allows for the discharge of the screened padlock pins from the screening cylinder 32. The discharge ports of the discharge hopper 314 are respectively installed on the upper side of the left guide plate 9 and the right guide plate 10. The discharge hopper 314, in conjunction with the left guide plate 9 and the right guide plate 10, allows for the discharge and export of the two specifications of padlock pins after brushing.The middle guide plate 8 corresponds to position 13 below the lower set of screening cylinders 32. The middle guide plate 8 guides the padlock pins after they have been brushed on the lower set of screening cylinders 32. A feed hopper 11 is located above the screening box 1 above the screening mechanism 3. The mounting end of the feed hopper 11 corresponds to the feed inlet on the upper set of screening mechanism 3. The mounting end of the feed hopper 11 is fixedly connected to the upper set of screening cylinders 32. The feed hopper 11 facilitates the operator's feeding of the padlock pins. The coordinated arrangement of the two sets of screening mechanisms 3, the middle guide plate 8, the left guide plate 9, and the right guide plate 10 can accommodate padlock pins of different specifications, facilitating the classification and collection of the screened padlock pins for subsequent processing and use.
[0020] A drive motor 2 is installed at the bottom of the screening box 1. The mounting end of the drive motor 2 is fixedly connected to the bottom of the inner wall of the screening box 1. Pulleys 4 are fitted onto the output end of the drive motor 2 and one end of a set of rotating shafts 311 on the outer side of the screening box 1. The mounting ends of the two sets of pulleys 4 are respectively installed corresponding to the output end of the drive motor 2 and the outer ring of one end of the rotating shaft 311. A second pulley 5 is fitted onto the outer ring of another set of rotating shafts 311. The mounting end of the second pulley 5 is corresponding to the outer ring of one end of the other set of rotating shafts 311. The mounting end is fixedly connected to the outer ring of one end of another set of rotating shafts 311. The second pulley 5 is provided with two sets of wheel grooves. The outer rings of the two sets of pulleys 4 and 5 are fitted with belts 6 in the wheel grooves. One set of belts 6 is installed in a corresponding wheel groove of pulley 4 on the drive motor 2 and pulley 5. The other set of belts 6 is installed in a corresponding wheel groove of pulley 4 on one end of a set of rotating shafts 311 and pulley 5. The arrangement of the two sets of belts 6 with pulleys 4 and 5 allows the drive motor 2 to drive the two sets of rotating roller assemblies 31 to rotate when in operation, so that the two sets of screening mechanisms 3 can classify and screen padlock pins of different specifications.
[0021] In this embodiment, the operator first powers on the drive motor 2. The drive motor 2, through pulley 4 and pulley 5, along with two sets of belts 6, drives two sets of rotating roller assemblies 31 to rotate. Then, the operator feeds the padlock pins stably through the feed hopper 11. When the padlock pins are fed into the screening cylinder 32 of the first screening mechanism 3 via the feed hopper 11, the rotating roller assembly 31 rotates, causing the auger blades 312 and the actuating rod 313 to rotate as well. The rotating auger blades 312 convey the padlock pins poured into the feed hopper 11. After being conveyed, the padlock pins are transported to position 13 within the screening cylinder 32. At this point, the actuating rod 313, driven by the rotating shaft 311, actuates the padlock pins, causing them to pass through position 13. Automatic feeding: Padlock pins that fall through guide 13 are guided by guide hopper 7 and fall into the lower set of screening cylinders 32. Padlock pins that do not fall through guide 13 are conveyed through discharge hopper 314 and then discharged through left guide plate 9, thus completing the screening of one specification of padlock pins. Padlock pins that fall into the lower set of screening cylinders 32 are conveyed and agitated by rotating roller assembly 31. Padlock pins that fall through guide 13 on the lower set of screening cylinders 32 are guided by middle guide plate 8 and fall through discharge hopper 314 at one end of the lower set of screening cylinders 32. At this time, the fallen padlock pins are guided by right guide plate 10, thus completing the grading and screening of padlock pins of different specifications.
[0022] The above-described specific embodiments are merely preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above-described specific embodiments.
Claims
1. A padlock pin grading and sorting device, comprising a sorting box (1), characterized in that: The screening box (1) is equipped with a drive motor (2) at the bottom. The screening box (1) is equipped with two screening mechanisms (3). Each screening mechanism (3) includes a screening cylinder (32). The inner ring of the screening cylinder (32) is equipped with a rotating roller assembly (31). The rotating roller assembly (31) includes a rotating shaft (311). The outer ring of the rotating shaft (311) is equipped with an auger blade (312) inside the screening mechanism (3). One side of the auger blade (312) is equipped with multiple sets of actuating rods (313) on the outer ring of the rotating shaft (311). A guide hopper (7) is provided between the two screening mechanisms (3). The output end of the drive motor (2) and one end of a set of rotating shafts (311) are both fitted with pulleys (4) on the outside of the screening box (1). The outer ring of one end of the other set of rotating shafts (311) is fitted with pulleys (5). The outer rings of the two sets of pulleys (4) and pulleys (5) are fitted with belts (6) in the wheel grooves. A middle guide plate (8) is provided in the screening box (1). A left guide plate (9) and a right guide plate (10) are respectively provided on both sides of the middle guide plate (8) in the screening box (1). A feed hopper (11) is provided above the screening mechanism (3) above the screening box (1).
2. The padlock pin grading and sorting device according to claim 1, characterized in that, The two sets of screening mechanisms (3) are arranged horizontally in an up-down manner. The mounting end of the auger blade (312) is installed corresponding to the rotating shaft (311). The screening cylinder (32) is provided with a feed inlet at the position above the auger blade (312). One end of the guide hopper (7) is installed corresponding to the feed inlet on the lower set of screening mechanisms (3). The mounting end of the feed hopper (11) is installed corresponding to the feed inlet on the upper set of screening mechanisms (3).
3. The padlock pin grading and sorting device according to claim 1, characterized in that, Multiple sets of (13) are provided below the two sets of screening cylinders (32). The inner diameter of (13) on the upper set of screening cylinders (32) is larger than the inner diameter of (13) on the lower set of screening cylinders (32). The other end of the guide hopper (7) is installed corresponding to the position of (13) on the upper set of screening cylinders (32). The outer rings of both ends of the rotating shaft (311) are fitted with bearings (12). Shaft holes are provided on both sides of the screening box (1). The outer ring of the bearing (12) is installed corresponding to the inner wall of the shaft hole.
4. The padlock pin grading and sorting device according to claim 3, characterized in that, The mounting end of the actuating rod (313) is installed corresponding to the outer ring of the rotating shaft (311), and the multiple sets of actuating rods (313) correspond to the multiple sets (13) positions on the screening cylinder (32).
5. The padlock pin grading and sorting device according to claim 1, characterized in that, Each set of screening cylinders (32) is provided with a discharge hopper (314) at one end away from the auger blade (312). The mounting ends of the left guide plate (9) and the right guide plate (10) are respectively installed corresponding to the inner wall of the screening box (1). The discharge port of the discharge hopper (314) is respectively installed corresponding to the upper side of the left guide plate (9) and the right guide plate (10). The mounting end of the middle guide plate (8) is installed corresponding to the inner wall of the screening box (1).
6. The padlock pin grading and sorting device according to claim 3, characterized in that, The two sides of the middle guide plate (8) are respectively installed close to the left guide plate (9) and the right guide plate (10). The middle guide plate (8) corresponds to the position (13) below the lower set of screening cylinders (32). The middle guide plate (8), the left guide plate (9) and the right guide plate (10) are all set in an inclined shape. A strip groove is opened on one side of the screening box (1). One end of the middle guide plate (8), the left guide plate (9) and the right guide plate (10) are installed corresponding to the strip groove.
7. A padlock pin grading and sorting device according to claim 1, characterized in that, The mounting ends of the two sets of pulleys (4) are respectively installed with the output end of the drive motor (2) and the outer ring of one end of a set of rotating shafts (311). The mounting end of the pulley (5) is installed with the outer ring of one end of another set of rotating shafts (311). The pulley (5) has two sets of grooves. One set of belts (6) is installed with the pulleys (4) on the drive motor (2) and the grooves on the pulleys (5). The other set of belts (6) is installed with the pulleys (4) at one end of a set of rotating shafts (311) and the grooves on the pulleys (5).