A sorting trolley secondary permanent magnet cleaning device

Abstract

This utility model discloses a secondary permanent magnet cleaning device for a sorting cart; the device includes a fixed frame; characterized in that it further includes a flipping scraper assembly and an elastic element installed within the fixed frame. The flipping scraper assembly includes a flipping shaft, a cantilever connector, and an inclined scraper. The flipping shaft is rotatably connected to the fixed frame. The rotation axis of the flipping shaft is horizontally set. Both ends of the cantilever connector are fixed to the flipping shaft and the inclined scraper, respectively. The elastic element is connected between the flipping scraper assembly and the fixed frame, providing an upward flipping elastic force to the inclined scraper. This utility model sets a certain angle between the inclined scraper and the traveling direction of the sorting cart, allowing the inclined scraper to discharge metal impurities from the bottom surface of the secondary permanent magnet to the side, reducing the impact force of metal impurities on the inclined scraper. This reduces the impact on the scraper and the sorting cart while also reducing the noise generated during the scraping of metal impurities.

Description

Technical Field

[0001] This utility model belongs to the technical field of logistics sorting equipment, specifically relating to a secondary permanent magnet cleaning device for sorting carts. Background Technology

[0002] The common driving method for sorting trolleys on logistics sorting machines is non-contact drive via a linear motor directly beneath the track. Therefore, a secondary permanent magnet needs to be fixed to the bottom of each trolley to cooperate with the linear motor. During operation, the secondary permanent magnet may attract metallic impurities (such as iron filings, screws, etc.), and the required air gap between the linear motor and the secondary permanent magnet is often smaller than the size of these impurities. Therefore, the metallic impurities attracted by the secondary permanent magnet can easily damage the linear motor, thus affecting the operating quality and efficiency of the logistics sorting machine. Summary of the Invention

[0003] The purpose of this invention is to provide a secondary permanent magnet cleaning device for sorting carts.

[0004] This utility model provides a secondary permanent magnet cleaning device for a sorting cart, comprising a fixed frame; characterized in that it further includes a flipping scraper assembly and an elastic element installed within the fixed frame. The flipping scraper assembly includes a flipping shaft, a cantilever connector, and an inclined scraper. The flipping shaft is rotatably connected to the fixed frame. The axis of rotation of the flipping shaft is horizontally positioned. Both ends of the cantilever connector are fixed to the flipping shaft and the inclined scraper, respectively. The elastic element connects the flipping scraper assembly to the fixed frame, providing an upward flipping force to the inclined scraper.

[0005] Preferably, the top scraping edge of the inclined scraper is set horizontally and forms an angle of 20° to 60° with the axis of the flipping shaft.

[0006] Preferably, the top of the inclined scraper is provided with an inclined folding structure. The fold line of the inclined folding structure is parallel to the top scraping edge, causing the top scraping edge to fold towards the side closer to the flipping axis, forming an inclined guide surface.

[0007] Preferably, the elastic element is a tension spring. A connecting ring is fixed to the side of the flipping shaft and to the bottom surface of the inner cavity of the fixing frame. Both ends of the tension spring are fixed to the two connecting rings respectively.

[0008] Preferably, the end of the cantilever connector connected to the inclined scraper is provided with an inclined mounting structure. The inclined mounting structure includes two inclined mounting supports. The two mounting supports are fixed to two mounting positions on the inclined scraper, respectively. The two mounting supports are folded structures at the ends of the two connecting plates of the cantilever connector. The distances between the two mounting supports and the axis of the flipping shaft are different.

[0009] Preferably, the inclined scraper has a waist-shaped adjustment hole extending vertically at both mounting positions. The waist-shaped adjustment hole is fixed to the corresponding mounting support on the cantilever connector by bolts.

[0010] Preferably, a storage box is also included. The storage box is fixed to a fixed frame and located directly below the slanted scraper. The top of the storage box is open.

[0011] Preferably, an upper limit structure is also included; the upper limit structure is fixed to the fixed frame and located above the cantilever connector. The cantilever connector abuts against the bottom of the upper limit structure under the elastic force of the elastic element.

[0012] Preferably, a lower limiting structure is also included; the lower limiting structure is fixed within the fixed frame and located below the flip shaft. The bottom of the cantilever connector is provided with a limiting part aligned with the lower limiting structure.

[0013] Preferably, a tilt-down trigger sensor is also included. The tilt-down trigger sensor is installed within the fixed frame, and its trigger position is aligned with the limiting part of the cantilever connector.

[0014] Preferably, mounting brackets are provided on both sides of the fixing frame. Each mounting bracket has a waist-shaped mounting hole. The waist-shaped mounting hole is fixed to the connecting hole on the fixing frame by bolts.

[0015] The present invention has the following beneficial effects.

[0016] 1. This utility model sets a certain angle between the inclined scraper and the traveling direction of the sorting trolley, so that the inclined scraper can discharge metal impurities from the bottom surface of the secondary permanent magnet to the side, reducing the impact force of metal impurities on the inclined scraper. While reducing the impact on the scraper and the sorting trolley, it can also reduce the noise generated during the scraping off of metal impurities.

[0017] 2. This utility model connects the inclined scraper to the flipping shaft that is reset by elastic force, and with the inclined guide surface formed by the folding of the inclined scraper, the inclined scraper can be flipped downward to avoid excessive impact from metal impurities, thus preventing damage to the inclined scraper and the sorting trolley.

[0018] 3. By installing a micro switch on the side of the lower limit structure, this utility model can trigger the micro switch when the inclined scraper flips downward to avoid it, thereby sending a signal to the control system that the sorting trolley is carrying metal impurities that cannot be scraped off, so that the sorting machine can stop running in time to avoid damage to the linear motor. Attached Figure Description

[0019] Figure 1This is a perspective view of an embodiment of the present utility model;

[0020] Figure 2 This is a top view schematic diagram of an embodiment of the present utility model;

[0021] Figure 3 This is a front view of an embodiment of the present utility model;

[0022] Figure 4 This is an internal schematic diagram of an embodiment of the present utility model (i.e.) Figure 3 (Sectional view of section AA)

[0023] Reference numerals: 1. Fixed frame; 2. Flipping shaft; 3. Cantilever connector; 3-1. Mounting support; 3-2. Limiting part; 4. Slanted scraper; 4-1. Waist-shaped adjustment hole; 4-2. Top scraping edge; 4-3. Inclined folding structure; 5. Elastic element; 6. Upper limit structure; 7. Lower limit structure; 8. Limit switch; 9. Storage box; 10. Mounting bracket; 11. Sorting machine frame. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figure 1 and 2 As shown, a secondary permanent magnet cleaning device for a sorting cart includes a fixed frame 1, and a flip scraper assembly, an elastic element 5, an upper limit structure 6, a lower limit structure 7, a flip trigger sensor, and a storage box 9 installed within the fixed frame 1. The flip scraper assembly includes a flip shaft 2, a cantilever connector 3, and an inclined scraper 4. The two ends of the flip shaft 2 are rotatably connected to two side plates of the fixed frame 1. The rotation axis of the flip shaft 2 is horizontally set and perpendicular to the travel direction of the sorting cart.

[0026] One end of the cantilever connector 3 is fixed to the middle of the tilting shaft 2. The other end of the cantilever connector 3 is provided with an oblique mounting structure. The oblique mounting structure includes two oblique mounting support parts 3-1. The two mounting support parts 3-1 are at different distances from the axis of the tilting shaft 2 to facilitate oblique mounting relative to the rotation axis of the tilting shaft 2. The two mounting support parts 3-1 are formed by the end flanges of the two connecting plates of the cantilever connector 3.

[0027] The outer surfaces of the two mounting supports 3-1 are in the same plane. This plane forms a 20° angle with the axis of the flipping shaft 2. In some other embodiments, the angle between the outer surface of the mounting support 3-1 and the axis of the flipping shaft 2 may be 10°, 15°, 25°, 30°, 60° or other angles.

[0028] like Figure 3 and 4As shown, the two mounting positions on the inclined scraper 4 are fixed to the two mounting supports 3-1 by bolts and nuts, respectively. Each mounting position of the inclined scraper 4 has a waist-shaped adjustment hole 4-1 extending vertically. The mounting support 3-1 of the cantilever connector 3 has a connecting hole. The bolt passes through the waist-shaped adjustment hole 4-1 on the inclined scraper 4 and the connecting hole on the cantilever connector 3, and is fixed with a nut. The mounting height of the inclined scraper 4 can be adjusted through the waist-shaped adjustment hole 4-1. The inner surface of the inclined scraper 4 is in contact with the mounting support 3-1 of the cantilever connector 3. Since the mounting support 3-1 has an angle relative to the axis of the tilting shaft 2, the inclined scraper 4 also has the same angle with the axis of the tilting shaft 2.

[0029] The top of the inclined scraper 4 forms a top scraping edge 4-2 for scraping off objects adsorbed on the secondary permanent magnet. The top scraping edge 4-2 is horizontally positioned and forms a certain angle with the axis of the flipping shaft 2. An inclined folding structure 4-3 is provided at the location of the top scraping edge 4-2 of the inclined scraper 4. The crease of the inclined folding structure 4-3 is parallel to the top scraping edge 4-2, causing the top scraping edge 4-2 to fold from the main body of the inclined scraper 4 towards the side closer to the flipping shaft 2, forming an inclined guide surface. The inclined guide surface provides guidance between the inclined scraper 4 and the sorting trolley, allowing the inclined scraper 4 to flip downwards upon impact, preventing damage to the inclined scraper 4 due to excessive impact.

[0030] like Figure 1 and 2 As shown, the elastic element 5 provides an upward restoring force to the inclined scraper 4. In this embodiment, the elastic element 5 is a tension spring. A connecting ring is fixed to the side of the flipping shaft 2 and the bottom surface of the inner cavity of the fixing frame 1. The two ends of the tension spring are respectively fixed to the two connecting rings. The connecting rings fixed to the flipping shaft 2 are located on the side of the flipping shaft 2 opposite to the inclined scraper 4. Therefore, the tension spring provides a downward pulling force to the connecting rings on the flipping shaft 2, which can drive the inclined scraper 4 to flip upward.

[0031] The upper limit structure 6 is in the shape of a straight rod, and its two ends are fixed to the two side plates of the fixed frame 1 respectively. The upper limit structure 6 is located above the cantilever connector 3.

[0032] The lower limit structure 7 is a block structure, fixed within the fixed frame 1, and located below the flip shaft 2. The bottom of the cantilever connector 3 has a limiting part 3-2 aligned with the lower limit structure 7. The flip-down trigger sensor is installed within the fixed frame 1. The trigger roller of the flip-down trigger sensor is aligned with the limiting part 3-2 of the cantilever connector 3.

[0033] When the cantilever connector 3 flips downward to its limit position, the limiting part 3-2 of the cantilever connector 3 contacts the lower limiting structure 7. Simultaneously, the limiting part 3-2 of the cantilever connector 3 triggers the flip-down trigger sensor. In this embodiment, the flip-down trigger sensor is a microswitch.

[0034] The output signal line of the flip-down trigger sensor is connected to the control system of the sorting machine. In some embodiments, when the flip-down trigger sensor is triggered, it indicates that the inclined scraper 4 has flipped down due to encountering metal impurities that cannot be scraped off. At this time, after receiving the signal from the flip-down trigger sensor, the control system can control the sorting machine to start working and manually troubleshoot the fault to avoid damage to the linear motor.

[0035] The storage box 9 is installed at the bottom of the inner cavity of the fixed frame 1 and is located directly below the inclined scraper 4. The top of the storage box 9 is open to receive the metal material scraped off by the inclined scraper 4.

[0036] The secondary permanent magnet cleaning device of the sorting cart is arranged in front of the linear motor, so that the secondary permanent magnet of the sorting cart passes through the cleaning device before entering the linear motor. The cleaning device can effectively remove metal impurities adsorbed on the secondary permanent magnet, ensuring that large metal impurities are not entangled between the secondary permanent magnet and the linear motor, thereby ensuring the safe operation of the motor.

[0037] In some embodiments, mounting brackets 10 are provided on both sides of the fixed frame 1. Each mounting bracket 10 has a waist-shaped mounting hole. The waist-shaped mounting hole is fixed to the connecting hole on the fixed frame 1 by bolts. The mounting bracket 10 is fixed to the sorting machine frame 11 by bolts. The length direction of the waist-shaped mounting hole is vertically oriented; the height of the entire secondary permanent magnet cleaning device of the sorting trolley can be adjusted through the waist-shaped mounting hole on the mounting bracket 10.

Claims

1. A secondary permanent magnet cleaning device for a sorting cart, comprising a fixed frame (1); characterized in that: It also includes a flip scraper assembly and an elastic element (5) installed in a fixed frame (1); the flip scraper assembly includes a flip shaft (2), a cantilever connector (3) and an inclined scraper (4); the flip shaft (2) is rotatably connected in the fixed frame (1); the rotation axis of the flip shaft (2) is set horizontally; the two ends of the cantilever connector (3) are fixed to the flip shaft (2) and the inclined scraper (4) respectively; the elastic element (5) is connected between the flip scraper assembly and the fixed frame (1) to provide an upward flipping elastic force to the inclined scraper (4).

2. The secondary permanent magnet cleaning device for a sorting cart according to claim 1, characterized in that: The top scraping edge (4-2) of the inclined scraper (4) is set horizontally and forms an angle of 20° to 60° with the axis of the flipping shaft (2).

3. The secondary permanent magnet cleaning device for a sorting cart according to claim 2, characterized in that: The top of the inclined scraper (4) is provided with an inclined folding structure (4-3); the fold of the inclined folding structure (4-3) is parallel to the top scraping edge (4-2), so that the top scraping edge (4-2) is folded toward the side closer to the flipping shaft (2) to form an inclined guide surface.

4. The secondary permanent magnet cleaning device for a sorting cart according to claim 1, characterized in that: The elastic element (5) is a tension spring; a connecting ring is fixed to the side of the flipping shaft (2) and the bottom of the inner cavity of the fixed frame (1); the two ends of the tension spring are fixed to the two connecting rings respectively.

5. The secondary permanent magnet cleaning device for a sorting cart according to claim 1, characterized in that: The end of the cantilever connector (3) connected to the inclined scraper (4) is provided with an inclined mounting structure; the inclined mounting structure includes two inclined mounting support parts (3-1); the two mounting support parts (3-1) are fixed to two mounting positions on the inclined scraper (4); the two mounting support parts (3-1) are folded structures at the ends of the two connecting plates of the cantilever connector (3); the distance between the two mounting support parts (3-1) and the axis of the flipping shaft (2) is different; a waist-shaped adjustment hole (4-1) extending in the vertical direction is opened at both mounting positions of the inclined scraper (4); the waist-shaped adjustment hole (4-1) is fixed to the corresponding mounting support part (3-1) on the cantilever connector (3) by bolts.

6. The secondary permanent magnet cleaning device for a sorting cart according to claim 1, characterized in that: It also includes a storage box (9); the storage box (9) is fixed on the fixed frame (1) and located directly below the slanted scraper (4); the top of the storage box (9) is open.

7. The secondary permanent magnet cleaning device for a sorting cart according to claim 1, characterized in that: It also includes an upper limit structure (6); the upper limit structure (6) is fixed on the fixed frame (1) and located above the cantilever connector (3); the cantilever connector (3) abuts against the bottom of the upper limit structure (6) under the elastic force of the elastic element (5).

8. The secondary permanent magnet cleaning device for a sorting cart according to claim 1, characterized in that: It also includes a lower limit structure (7); the lower limit structure (7) is fixed inside the fixed frame (1) and located below the flip shaft (2); the bottom of the cantilever connector (3) is provided with a limiting part (3-2) aligned with the lower limit structure (7).

9. A secondary permanent magnet cleaning device for a sorting cart according to claim 8, characterized in that: It also includes a flip-down trigger sensor; the flip-down trigger sensor is installed in the fixed frame (1) and the trigger position is aligned with the limiting part (3-2) of the cantilever connector (3).

10. A secondary permanent magnet cleaning device for a sorting cart according to claim 1, characterized in that: The fixed frame (1) is provided with mounting brackets (10) on both sides; the mounting brackets (10) are provided with waist-shaped mounting holes; the waist-shaped mounting holes are fixed to the connecting holes on the fixed frame (1) by bolts.

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