Nail sorting and conveying device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU NAIAO METALS PROD CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-12
AI Technical Summary
Existing nail sorting and conveying devices cannot ensure that nails fall into the separation component in a consistent state, and it is difficult to accurately distinguish nails of different masses by centrifugal force, especially nails with raised structures on the surface, and adjusting the rotation speed is cumbersome.
The transmission structure employs a stepped lifting mechanism in conjunction with a synchronous belt. The lifting drive assembly drives the top push plate to lift the nails layer by layer, and the synchronous belt's rotational motion ensures that the nails are transported in a uniform orientation. The transmission mechanism ensures that the synchronous belt always rotates in one direction, preventing nail accumulation.
This method enables nails to be transported in a uniform orientation, avoiding accumulation, improving transmission efficiency, and reducing equipment energy consumption.
Smart Images
Figure CN224226031U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nail production technology, and in particular to a nail sorting and conveying device. Background Technology
[0002] Nails are mainly composed of a nail head, a middle column, and a front cutting edge. After the initial processing of the nails is completed, they need to be inspected one by one to avoid the inclusion of defective products. In order to improve the inspection efficiency of nails, the nails need to be transported into the inspection equipment with a uniform orientation.
[0003] Chinese patent CN221816761U discloses a nail sorting and conveying device. The device consists of a vibrating feeding disc and a rotating separation component. The vibrating feeding disc arranges the nails one by one and feeds them into the separation component. Because the nails have different masses and centers of gravity, they are subjected to different centrifugal forces, thus falling into different guide nail tracks for sorting.
[0004] However, the device still has shortcomings: the state in which the nails fall into the separation component cannot be guaranteed to be completely consistent, and it is very troublesome to adjust the rotation speed of the separation component to ensure that nails of different masses can accurately enter different channels. Also, for example, when the nail is shorter than the standard value but has a raised structure on its surface, its mass will be less different from that of the standard nail, making it difficult to accurately distinguish them by centrifugal force. Utility Model Content
[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a nail sorting and conveying device.
[0006] The technical solution of this utility model is: a nail sorting and conveying device, including a box, a storage tank is provided inside the box, two guide rails are arranged in parallel on the side of the storage tank away from the inlet, the output end of the guide rails extends out of the box, and a channel is provided between the two guide rails for only the front edge and middle section of the nail to pass through.
[0007] A stepped lifting mechanism is installed inside the storage trough and connected to the box body;
[0008] The lifting drive assembly is located inside the housing and drives the movable part connected to the stepped lifting mechanism to gradually raise the nails that fall on the movable part of the stepped lifting mechanism until they fall into the channel.
[0009] Two pulleys are symmetrically arranged on the housing and rotatably connected to it. The two pulleys are connected by a synchronous belt drive, and the upper straight part of the synchronous belt extends into the channel.
[0010] And a transmission mechanism, which drives the pulley and the moving part of the stepped lifting mechanism to drive the synchronous belt to continuously rotate in the same direction during the reciprocating lifting process of the stepped lifting mechanism.
[0011] Preferably, the two guide rails extend downwards from one end of the housing.
[0012] Preferably, the stepped lifting mechanism includes partition plates and push plates. There are multiple partition plates, which are spaced apart on the inner wall of the storage tank. The partition plates are raised layer by layer in the direction away from the inlet of the storage tank. The side of the partition plate at the highest position away from the inlet is connected to one of the guide rails. There are multiple push plates, each of which is slidably connected to the partition plate on the corresponding side. Adjacent push plates are connected by a bracket. The top of both the partition plates and the push plates are provided with inclined surfaces facing the guide rails.
[0013] Preferably, the lifting drive assembly includes an electric push rod, and the movement of the stepped lifting mechanism is not composed of multiple push plates, one of which is provided with a slider that is slidably connected to the housing. The body of the electric push rod is connected to the housing, and the output end of the electric push rod is connected to the slider.
[0014] Preferably, the transmission mechanism includes a gear, a rack, a ratchet, and a ratchet tooth. A rotating shaft is coaxially mounted on the pulley and rotatably connected to the housing. The gear is coaxially rotatably connected to the rotating shaft. The gear has a circular groove coaxial with it and a sliding groove communicating with the circular groove. The ratchet is mounted in the circular groove and rotates coaxially with it, and is coaxially connected to the rotating shaft. A spring rod is mounted in the sliding groove. One end of the ratchet tooth is inserted into the sliding groove and connected to the movable end of the spring rod. The ratchet tooth meshes with the ratchet in one direction. Two racks are symmetrically mounted and slidably mounted on the housing and connected to the slider. The two racks mesh with the gears on the corresponding sides.
[0015] Preferably, both racks are located between the two side gears, and the ratchet wheels on the two shafts rotate in the same direction.
[0016] Compared with the prior art, the present invention has the following beneficial technical effects:
[0017] By setting a stepped lifting mechanism inside the box, the moving part of the stepped lifting mechanism is driven to reciprocate up and down by a lifting drive component; by setting a synchronous belt in the channel between the two guide rails, the shafts of the two synchronous belt pulleys are linked to the moving part of the stepped lifting mechanism through a transmission mechanism. This transmission mechanism is composed of a cooperative structure of two sets of gears, ratchet, ratchet teeth and racks, so that the stepped lifting mechanism drives the synchronous belt to always rotate in one direction during the reciprocating up and down process, avoiding the accumulation of nails in the channel and causing obstruction of material discharge. At the same time, this structure can also reduce the energy consumption of the equipment. Attached Figure Description
[0018] Figure 1This is a schematic diagram of the structure of one embodiment of the present utility model;
[0019] Figure 2 This is a schematic diagram of the internal structure of the box;
[0020] Figure 3 This is a schematic diagram of the connection structure between the partition panel and the box body.
[0021] Figure 4 A schematic diagram showing the connection structure between the lifting drive assembly, the push plate, and the timing belt;
[0022] Figure 5 for Figure 4 Enlarged view of part A in the middle.
[0023] Reference numerals: 1. Box body; 101. Storage trough; 102. Inspection window; 2. Guide rail; 3. Partition plate; 4. Push plate; 41. Bracket; 42. Slider; 5. Lifting drive assembly; 6. Rotary shaft; 7. Pulley; 8. Synchronous belt; 9. Gear; 10. Rack; 11. Ratchet; 12. Spring rod; 13. Ratchet. Detailed Implementation
[0024] Example 1
[0025] like Figures 1-5As shown, this utility model proposes a nail sorting and conveying device, including a housing 1, a stepped lifting mechanism, a lifting drive assembly 5, pulleys 7, and a transmission mechanism. A storage trough 101 is provided inside the housing 1. Two guide rails 2 are arranged parallel to each other on the side of the storage trough 101 away from the inlet. The output ends of the guide rails 2 extend outside the housing 1. The ends of the two guide rails 2 extending out of the housing 1 gradually slope downwards. A channel is provided between the two guide rails 2, allowing only the tip and middle section of the nail to pass through. The outer diameter of the nail head is larger than the width of the channel. The stepped lifting mechanism is located inside the storage trough 101 and connected to the housing 1. The stepped lifting mechanism includes partition plates 3 and push plates 4. Multiple partition plates 3 are spaced apart on the inner wall of the storage tank 101, and rise layer by layer in the direction away from the inlet of the storage tank 101. The side of the partition plate 3 furthest from the inlet is connected to one of the guide rails 2. Multiple push plates 4 are slidably connected to the corresponding partition plate 3. Adjacent push plates 4 are connected by a bracket 41. A lifting drive assembly 5 is installed inside the housing 1. The lifting drive assembly 5 includes an electric push rod. The movement of the stepped lifting mechanism is not solely determined by the multiple push plates 4. One push plate 4 is slidably connected to a slider 42 on the housing 1. The body of the electric push rod is connected to the housing 1, and its output end is connected to the slider 42. Two pulleys 7 are symmetrically arranged on the housing 1 and rotatably connected to it. The two pulleys 7 are connected by a synchronous belt 8, the upper straight portion of which extends into the channel. The transmission mechanism includes a gear 9, a rack 10, a ratchet 11, and a ratchet 13. A rotating shaft 6 is coaxially mounted on the pulley 7, and the rotating shaft 6 is rotatably connected to the housing 1. The gear 9 is coaxially rotatably connected to the rotating shaft 6. The gear 9 has a circular groove coaxial with it, and a sliding groove communicating with the circular groove. The ratchet 11 is located in the circular groove and rotates coaxially with it, and the ratchet 11 is coaxially connected to the rotating shaft 6. A spring rod 12 is located in the sliding groove. One end of the ratchet 13 is inserted into the sliding groove and connected to the movable end of the spring rod 12. The ratchet 13 meshes with the ratchet 11 in one direction. Two racks 10 are symmetrically and slidably mounted on the housing 1 and connected to the slider 42. The two racks 10 mesh with the gears 9 on the corresponding sides. Both racks 10 are located between the two gears 9 on both sides, and the ratchet 11 on the two rotating shafts 6 rotates in the same direction. The transmission mechanism connects the pulley 7 to the moving part of the stepped lifting mechanism, so as to drive the synchronous belt 8 to continuously rotate in the same direction during the reciprocating lifting process of the stepped lifting mechanism.
[0026] In this embodiment, the pre-processed nails are poured into the storage trough 101. The electric push rod is activated, driving the push plate 4 to reciprocate up and down. When the push plate 4 is rising, the nails that fall on the top of the leftmost push plate 4 are lifted to the top of the leftmost partition plate 3. Then the push plate 4 descends, and the nails on the partition plate 3 fall onto the second push plate 4. This process is repeated layer by layer until the nails are fed into the channel and fall onto the bearing surface of the synchronous belt 9. When the electric push rod pushes the push plate 4, Figure 1 As shown, the left rack 10 slides up and drives the left gear 9 to rotate counterclockwise. At this time, the left ratchet 13 is engaged with the left ratchet 11, causing the gear 9 to rotate and drive the left shaft 6 and pulley 7 to rotate counterclockwise through the structure of the ratchet 11 and ratchet 13. This, in turn, drives the synchronous belt to rotate along the discharge direction of the guide rail 2. The right pulley 7 rotates counterclockwise, which in turn drives the right shaft 6 and ratchet 11 to rotate counterclockwise. At this time, the right ratchet 13 is in a non-meshing state. Since the right gear 9 rotates clockwise, the right gear 9 and ratchet 11 will not interfere with each other in the rotating state because the ratchet 13 is in a non-meshing state. When the push plate 4 descends, the left ratchet 13 does not engage, while the right ratchet 13 meshes with the right ratchet 11. The right rack 10 slides down, driving the right pulley 7 to rotate counterclockwise. The right gear 7 continues to drive the synchronous belt 7 to rotate along the discharge direction of the guide rail 2. This ensures that the synchronous belt 7 always rotates in one direction and conveys nails during the reciprocating lifting and lowering process of the push plate 4. The nails are pushed by the conveyor belt to the inclined section of the guide rail 2, preventing nails from accumulating in the housing 1 and reducing transmission efficiency. As the nails slide down the channel, their caps are caught between the guide rails, ensuring that their front edge and the middle column face downwards, achieving uniform orientation of nail conveying.
[0027] Example 2
[0028] like Figures 1-3 As shown, the nail sorting and conveying device proposed in this utility model, compared with Embodiment 1, has inclined surfaces at the top of both the partition plate 3 and the push plate 4 facing the guide rail.
[0029] In this embodiment, the inclined surface of the push plate 4 is used in conjunction with the adjacent partition plate 3 to stably lift the nails that fall on the inclined surface, while ensuring that the nails at the top of the partition plate 3 can fall smoothly on the top inclined surface of the next push plate 4, thereby improving the efficiency of lifting the nails layer by layer.
[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.
Claims
1. A nail sorting and conveying device, characterized in that, include: Box (1), a storage trough (101) is provided inside the box (1), two guide rails (2) are arranged in parallel on the side away from the inlet in the storage trough (101), the output end of the guide rail (2) extends out of the box (1), and a channel is provided between the two guide rails (2) for the front edge of the nail and the middle column to pass through only. A stepped lifting mechanism is installed inside the storage tank (101) and connected to the box body (1); The lifting drive assembly (5) is installed inside the housing (1) and drives the movable part connected to the stepped lifting mechanism to gradually raise the nails that fall on the movable part of the stepped lifting mechanism until they fall into the channel. Pulleys (7), two pulleys (7) are symmetrically arranged on the housing (1) and rotatedly connected to it. The two pulleys (7) are connected by a synchronous belt (8). The upper straight part of the synchronous belt (8) extends into the channel. And a transmission mechanism, which drives the pulley (7) and the moving part of the stepped lifting mechanism to drive the synchronous belt (8) to continuously rotate in the same direction during the reciprocating lifting process of the stepped lifting mechanism.
2. The nail sorting and conveying device according to claim 1, characterized in that, The two guide rails (2) extend from one end of the box (1) and gradually tilt downwards.
3. The nail sorting and conveying device according to claim 1, characterized in that, The stepped lifting mechanism includes partition plates (3) and push plates (4). There are multiple partition plates (3), which are spaced apart on the inner wall of the storage tank (101). The partition plates (3) are raised layer by layer in the direction away from the inlet of the storage tank (101). The side of the partition plate (3) at the highest position away from the inlet is connected to one of the guide rails (2). There are multiple push plates (4), and each push plate (4) is slidably connected to the partition plate (3) on the corresponding side. Two adjacent push plates (4) are connected by a bracket (41). The top of both the partition plates (3) and the push plates (4) are provided with inclined surfaces facing the guide rails.
4. The nail sorting and conveying device according to claim 1, characterized in that, The lifting drive assembly (5) includes an electric push rod. The movement of the stepped lifting mechanism is composed of multiple push plates (4). One of the push plates (4) is provided with a slider (42) that is slidably connected to the housing (1). The body of the electric push rod is connected to the housing (1), and the output end of the electric push rod is connected to the slider (42).
5. A nail sorting and conveying device according to claim 4, characterized in that, The transmission mechanism includes a gear (9), a rack (10), a ratchet (11), and a ratchet tooth (13). A rotating shaft (6) is coaxially mounted on the pulley (7). The rotating shaft (6) is rotatably connected to the housing (1). The gear (9) is coaxially connected to the rotating shaft (6). A circular groove coaxial with the gear (9) is provided on the gear (9), and a sliding groove communicating with the circular groove is provided on the gear (9). The ratchet tooth (11) is located in the circular groove and rotates coaxially with it. The ratchet tooth (11) is coaxially connected to the rotating shaft (6). A spring rod (12) is provided in the sliding groove. One end of the ratchet tooth (13) is inserted into the sliding groove and connected to the movable end of the spring rod (12). The ratchet tooth (13) meshes with the ratchet tooth (11) in one direction. Two racks (10) are symmetrically and slidably mounted on the housing (1) and connected to the slider (42). The two racks (10) mesh with the gears (9) on the corresponding sides respectively.
6. The nail sorting and conveying device according to claim 5, characterized in that, Both racks (10) are located between the two gears (9) on both sides, and the ratchet (11) on the two rotating shafts (6) rotate in the same direction.