Tray mechanism for sorting machine

Abstract

The utility model discloses a tray mechanism for a sorting machine, which relates to the technical field of sorting machines and comprises a support frame, the side surface of the support frame is hinged with a tray body through a fixed hinge shaft, and the bottom of the side surface of the support frame is hinged with a swing rod through a second movable hinge shaft. A connecting rod is hinged to the bottom of the tray body through a first movable hinge shaft, and a trigger groove is formed in the side face of the bottom end of the connecting rod. When the tray body is sorted, the trigger groove at the lower end of the connecting rod of the tray mechanism, the blowing port of the sorting channel is aligned with the trigger groove and blows out high-pressure air flow, the trigger groove serves as an air gathering port to form backward instant thrust, and at the moment, the self-locking balance state of the original tray body is broken; and the tray body rotates downwards along the connecting rod with the fixed-shaft hinge shaft as the circle center, when the reverse side of the tray body makes contact with the outer side of the connecting rod, the tray body stops suspending downwards, a second self-locking state is formed, and at the moment, the borne objects also fall into the corresponding sorting channels.

Description

Technical Field

[0001] The utility model relates to the technical field of sorting machines, in particular to a tray mechanism for a sorting machine. Background Technique

[0002] In modern agricultural production, sorting machines classify and collect crops accurately according to physical characteristics such as size and weight to meet the diverse needs of the market. Among them, a crucial component is the tray mechanism, which can accurately send the objects to be sorted into the preset sorting channels, ensuring the smooth progress of the subsequent sorting process.

[0003] However, the tray design in traditional sorting machines has certain limitations. Take the tray mechanism of a sorting machine disclosed in the patent document CN218260622U for example. Its support frame, tray, connecting rod and rocker form a four-bar mechanism. When the tray reaches the highest point, the transmission angle of the mechanism is 0°, forming self-locking to ensure the stability of the objects to be sorted during transportation and prevent accidental dropping. By applying force to the trigger arm through an external trigger mechanism, the self-locking state is broken, and the connecting rod drives the rocker and the tray to rotate clockwise after being stressed, realizing the accurate dumping of materials into the sorting channel below without the need for additional lateral space. Although it utilizes the self-locking and unlocking characteristics of the four-bar mechanism to achieve stable transportation and accurate dumping of materials, it also has some obvious defects: (1) The support frame is in an inverted U structure, covering the corresponding position of the transmission mechanism on three sides. When the transmission mechanism droops naturally during transmission, due to being covered on three sides by the support frame, the transmission mechanism cannot be tightened, interfering with the stability of the tray. (2) The setting of the connecting rod and the trigger assembly is complex. Once a failure occurs, the contact between the trigger assembly and the trigger mechanism causes jamming, which may seriously damage the equipment, resulting in high costs and great risks. Summary of the Utility Model

[0004] The utility model provides a tray mechanism for a sorting machine, which solves the technical problems in the background technique.

[0005] To solve the above technical problems, a tray mechanism for a sorting machine provided by the utility model includes a support frame. The side of the support frame is hinged with a tray body through a fixed-axis hinge shaft. The bottom of the side of the support frame is hinged with a swing rod through a second movable hinge shaft. The bottom of the tray body is hinged with a connecting rod through a first movable hinge shaft. The connecting rod is movably connected with the swing rod. A trigger groove is formed on the side of the bottom end of the connecting rod.

[0006] Preferably, a support seat is integrally formed on the side of the connecting rod close to the support frame. The support seat is hinged with the swing rod through a third movable hinge shaft. A handle part is integrally formed at the bottom of the connecting rod. The trigger groove is located on the side of the handle part close to the support frame.

[0007] Preferably, the support frame is connected to the configured transmission mechanism on one side, and the upper and lower surfaces of the corresponding transmission mechanism are exposed.

[0008] Compared with the related art, a tray mechanism for a sorter provided by the present utility model has the following beneficial effects:

[0009] The present utility model provides a tray mechanism for a sorter. When the tray body is being sorted, the lower end of the connecting rod of the tray mechanism where it is located triggers the groove, and the air blowing port of the sorting channel where it is located aligns with the triggering groove and blows out high-pressure air. The triggering groove serves as a converging air port, forming an instantaneous thrust backward. At this time, the original self-locking balance state of the tray body is broken, and the tray body rotates downward along the connecting rod with the fixed-axis hinge shaft as the center. The load carried by the tray body slides down with the tray body. When the reverse side of the tray body contacts the outer side of the connecting rod, the tray body stops rotating downward and forms a second self-locking state. At this time, the load also falls into the corresponding sorting channel; the air flow will produce a converging effect at the triggering groove, generating a relatively large thrust, effectively triggering the movement of the connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0011] Figure 2 is a schematic diagram of the structure after unlocking of the present utility model;

[0012] Figure 3 is a schematic diagram of the overall sectional structure of the present utility model;

[0013] Figure 4 is a schematic diagram of the overall three-dimensional assembly structure of the present utility model.

[0014] Reference numerals in the drawings: 1, support frame; 2, tray body; 3, swing rod; 4, connecting rod; 5, fixed-axis hinge shaft; 6, first movable hinge shaft; 7, second movable hinge shaft; 8, third movable hinge shaft; 41, support seat; 42, triggering groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] Example, consisting of Figures 1-4Provided that, the present utility model includes a support frame 1. A tray body 2 is hinged to the side surface of the support frame 1 through a fixed shaft hinge shaft 5. A swing rod 3 is hinged to the bottom of the side surface of the support frame 1 through a second movable hinge shaft 7. A connecting rod 4 is hinged to the bottom of the tray body 2 through a first movable hinge shaft 6. The connecting rod 4 is movably connected to the swing rod 3. A trigger groove 42 is formed on the side surface of the bottom end of the connecting rod 4. A support seat 41 is integrally formed on one side of the connecting rod 4 close to the support frame 1. The support seat 41 is hinged to the swing rod 3 through a third movable hinge shaft 8. A handle portion is integrally formed at the bottom of the connecting rod 4. The trigger groove 42 is located on one side of the handle portion close to the support frame 1. The support seat 41 is attached to the side surface of the support frame 1. The positions of the first movable hinge shaft 6, the second movable hinge shaft 7 and the third movable hinge shaft 8 form a triangular layout.

[0016] In this embodiment, the specific working principle of the tray mechanism is as follows: When the tray body 2 is normally carrying materials, the connecting rod 4 is subjected to a downward pressure. This pressure causes the other end of the swing rod 3 hinged thereto to be tangent to the inner wall of the support frame 1. At this time, a stable triangular layout is formed at the positions of the first movable hinge shaft 6, the second movable hinge shaft 7 and the third movable hinge shaft 8, and the tray body 2 is self-locked, which can prevent the tray body 2 from vibrating due to material deformation when an object falls on the tray body 2 and causing mis-unlocking.

[0017] During the sorting of the tray body 2, the lower trigger groove 42 of the connecting rod 4 of the tray mechanism is triggered. The air blowing port of the sorting channel is aligned with the trigger groove 42 and blows out high-pressure air. The trigger groove 42 serves as a converging air port to form an instantaneous backward thrust. At this time, the connecting rod 4 takes the support seat 41 as a fulcrum and makes a lever movement. The connecting rod 4 drives the swing rod 3 to move outward. At this time, the original self-locking balance state of the tray body 2 is broken, and the tray unlocks the tray body 2. The tray body 2 rotates downward along the connecting rod 4 with the fixed shaft hinge shaft 5 as the center. The load carried by the tray body 2 slides down with the tray body 2. When the reverse side of the tray body 2 contacts the outside of the connecting rod 4, the tray body 2 stops rotating downward and forms a second self-locking state. At this time, the load also falls into the corresponding sorting channel.

[0018] When the tray body 2 moves to the reset guiding surface along with the transmission mechanism, it can cause the tray body 2 to rotate upward relative to the support frame 1, thereby increasing the height of the connecting rod 4. Affected by gravity, at this time, the tray body 2 is at the highest point relative to the connecting rod 4, reaching a limit position, which is not the position where the tray body 2 is located when carrying objects. When the tray mechanism moves to the loading channel, affected by the self-weight of the tray body 2, the tray body 2 presses the connecting rod 4 and is subjected to a downward pressure. Since the fitting of each hinge hole is a clearance fit, the tray body 2 rotates downward by a certain position. When the self-locking state of the tray body 2 for normal loading is reached, the reset is completed.

[0019] Among them, compared with the prior art, the connecting rod 4 uses an integrated design, which has a simple structure, high strength and low manufacturing cost.

[0020] In this embodiment, the provided handle can prevent the strength of the connecting rod 4 from decreasing. A permanent magnet can also be installed in the triggering groove 42, and an electromagnet can be arranged on the sorting channel. The principle of like poles repelling each other between magnets is used to break the self-locking state of the tray body 2.

[0021] The support frame 1 is connected to the configured transmission mechanism on one side, and the upper and lower surfaces of the corresponding transmission mechanism are exposed, facilitating the tensioning of the transmission mechanism. Mounting holes matching the chain in the transmission mechanism are formed on the top side of the support frame 1. The number of the mounting holes is two, and the two mounting holes are fixedly connected to the chain links.

[0022] In this embodiment, the currently used inverted U-shaped structure is cancelled, and the single-sided tray mechanism is used to facilitate installation on the chain of the transmission mechanism.

[0023] Reinforcing ribs are integrally formed at multiple places on the surface of the support frame 1.

[0024] In this embodiment, by providing multiple reinforcing ribs, the strength of the support frame 1 can be enhanced, while maintaining a relatively low weight and reducing the manufacturing cost.

Claims

1. A tray mechanism for a sorting machine, comprising a support frame (1), characterized in that: The side of the support frame (1) is hinged to the tray body (2) via a fixed-axis hinge shaft (5), the bottom of the side of the support frame (1) is hinged to a rocker arm (3) via a second movable hinge shaft (7), the bottom of the tray body (2) is hinged to a connecting rod (4) via a first movable hinge shaft (6), the connecting rod (4) is movably connected to the rocker arm (3), and a trigger groove (42) is provided on the bottom side of the connecting rod (4).

2. A tray mechanism for a sorting machine according to claim 1, characterized in that: A support seat (41) is integrally formed on one side of the connecting rod (4) close to the support frame (1); the support seat (41) is hinged to the rocker arm (3) via a third movable hinge shaft (8); a handle is integrally formed on the bottom of the connecting rod (4); and the trigger groove (42) is located on one side of the handle close to the support frame (1).

3. A tray mechanism for a sorting machine according to claim 2, characterized in that: The support seat (41) is fitted with the side surface of the support frame (1), and the positions of the first movable hinge axis (6), the second movable hinge axis (7) and the third movable hinge axis (8) form a triangular layout.

4. A tray mechanism for a sorting machine according to claim 1, characterized in that: The support frame (1) is connected to a configured transmission mechanism at one side, and the upper and lower surfaces of the corresponding transmission mechanism are exposed.

5. A tray mechanism for a sorting machine according to claim 4, characterized in that: The top side surface of the support frame (1) is provided with mounting holes matching the chain in the transmission mechanism, the number of the mounting holes is two, and the two mounting holes are fixedly connected to the chain links.

6. A tray mechanism for a sorting machine according to claim 4, characterized in that: Reinforcing ribs are integrally formed at multiple locations on the surface of the support frame (1).

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