Material adhesion prevention mechanism and chain sorting machine

Abstract

This invention discloses an anti-material adhesion mechanism and a chain-type sorting machine, relating to the field of sorting equipment technology. The invention includes a conveying unit and an anti-material adhesion mechanism, with several paddle units corresponding to several conveying units. The conveying unit includes two rows of material rollers and a chain for driving the material rollers to rotate and convey. The anti-material adhesion mechanism includes several paddle units and a drive assembly. Each paddle unit includes a pair of paddles, and the drive assembly is drively connected to the paddles, allowing the pair of paddles to unfold above the two rows of material rollers. By correspondingly arranging paddle units in the conveying units of the chain-type sorting machine, with each paddle unit including a pair of paddles, and the drive assembly driving the paddles to unfold above the material rollers, this invention ensures that only a single layer of material can pass under the paddles, while stacked and adhered material is removed by the paddles, guaranteeing the accuracy of subsequent identification and screening. Furthermore, the unfolding angle of the paddles can be adjusted according to the size of the material, making it highly adaptable.

Description

Technical Field

[0001] This invention belongs to the field of sorting equipment technology, and in particular relates to an anti-material sticking mechanism and a chain sorting machine. Background Technology

[0002] A sorting machine is a device that automatically separates target particles from granular materials based on differences in their visual characteristics using photoelectric detection technology. Among them, chain sorting machines are widely used in industries such as grain, food, plastics, and chemicals, and their high efficiency is particularly evident in the production processes of automated production lines for nuts and small to medium-sized fresh fruits and vegetables.

[0003] However, due to the structural limitations of the conveying mechanism itself, when screening nuts and fruits, the materials tend to pile up, affecting the identification accuracy and thus the screening effect.

[0004] To address the aforementioned issues, our company has designed a solution as described in Chinese invention patent application CN114887930A, which discloses a stacked material detection system for a chain sorting machine. This system uses a distance sensor to detect whether materials are stacked together. When materials are found to be stacked together, it is determined that all stacked materials are defective products, thereby preventing defective products from being mixed with qualified products after screening.

[0005] However, this plan still has the following shortcomings:

[0006] On the one hand, the addition of distance sensors to detect whether materials are stacked, and the improvement of the program, have led to an increase in equipment production costs;

[0007] On the other hand, when materials are piled up, they are all judged as unqualified products, causing qualified products to fall into the unqualified product area, resulting in large material losses and affecting the screening effect. Summary of the Invention

[0008] The purpose of this invention is to provide an anti-material adhesion mechanism and a chain-type sorting machine. By setting up a pry bar unit, the material that is stuck and stacked on the conveying unit is dislodged, so that the material passing through the pry bar unit on the conveying unit is conveyed in a single layer, which is convenient for subsequent identification and screening. This solves the problems of high cost and large material loss in the stacked material detection system in the background art, which affects the screening effect.

[0009] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0010] This invention relates to an anti-material adhesion mechanism and a chain-type sorting machine, comprising several paddle units and a drive assembly. Each paddle unit includes a mounting block and a pair of paddles symmetrically arranged on both sides of the mounting block. The drive assembly is connected to the pair of paddles to drive them to move synchronously, and can be unfolded into a "︿" shape on both sides of the mounting block.

[0011] As a preferred embodiment of the present invention, the paddle unit further includes a pair of connecting rod structures, which are symmetrically arranged about the mounting block. Each connecting rod structure includes a first connecting rod and a second connecting rod. One end of the first connecting rod is hinged to one end of the second connecting rod. The end of the first connecting rod away from the second connecting rod is hinged to the upper surface of the mounting block. The end of the second connecting rod away from the first connecting rod is connected to a drive assembly for transmission, thereby driving the first connecting rod to rotate about the hinge point between the first connecting rod and the mounting block. The paddle is fixedly mounted on the first connecting rod.

[0012] As a preferred technical solution of the present invention, the paddle unit further includes a shaft, the end of the second connecting rod away from the first connecting rod is rotatably engaged with the circumference of the shaft, and the driving component is connected to the shaft for transmission, so as to drive the shaft to move along the length direction of the mounting block.

[0013] As a preferred technical solution of the present invention, the mounting block has slots on both sides that are adapted to the paddle, and the paddle can be rotated into the slot, making the overall structure more compact and reasonable.

[0014] As a preferred technical solution of the present invention, the driving assembly includes a motor and a connecting rod, a plurality of the paddle units are arranged along the length direction of the connecting rod, the shaft is fixedly connected to the connecting rod, and the motor is drivenly connected to the connecting rod to drive the connecting rod to move along the length direction of the mounting block.

[0015] As a preferred technical solution of the present invention, the motor is a screw motor, and both ends of the connecting rod are fixed with internal threaded bushings, and the output shaft of the screw motor is threadedly connected to the internal threaded bushings.

[0016] As a preferred technical solution of the present invention, it also includes a proximity switch for detecting the displacement of the connecting rod. The proximity switch is fixedly installed on the upper surface of the mounting block, and a sensing element for easy detection by the proximity switch is installed on the connecting rod. The proximity switch is connected to the motor.

[0017] As a preferred technical solution of the present invention, oil cans for lubricating the output shaft of the motor are fixedly installed at both ends of the connecting rod.

[0018] A chain-type sorting machine includes several conveying units and the aforementioned anti-material sticking mechanism, wherein several of the aforementioned paddle units are correspondingly arranged with the several conveying units.

[0019] As a preferred embodiment of the present invention, the conveying unit includes two rows of material rollers and a chain for driving the material rollers to rotate and convey the material. The two rows of material rollers are installed on both sides of the chain. The mounting block is disposed above the chain, and a pair of levers can be deployed above the two rows of material rollers respectively.

[0020] The present invention has the following beneficial effects:

[0021] This invention provides a paddle unit corresponding to the conveying unit of the chain sorting machine. The paddle unit includes a pair of paddles, and the driving component can drive the paddles to unfold above the material rollers, so that only a single layer of material can pass under the paddles, while stacked and sticky materials will be removed by the paddles, ensuring the accuracy of subsequent identification and screening. Furthermore, the unfolding angle of the paddles can be adjusted according to the size of the material, making it highly adaptable.

[0022] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a chain sorting machine according to the present invention;

[0025] Figure 2 This is a schematic diagram of the anti-material adhesion mechanism in one embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the anti-material adhesion mechanism in another embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the anti-material adhesion mechanism in another embodiment of the present invention;

[0028] Figure 5 A schematic diagram of the assembly of the lever unit and the conveyor unit;

[0029] Figure 6 This is a structural diagram of the paddle unit in its unfolded state;

[0030] Figure 7 This is a schematic diagram of the paddle unit in its tightened state.

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 100-Pulley unit, 1-Mounting block, 101-Slot, 2-First connecting rod, 3-Second connecting rod, 4-Pulley, 5-Shaft, 6-Motor, 7-Connecting rod, 8-Proximity switch, 801-Sensing plate, 9-Oil can;

[0033] 200 - Conveying unit, 10 - Chain, 11 - Material roller. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] In the description of this invention, it should be understood that the terms "groove", "upper", "lower", "thickness", "surface", "middle", "length", "inner", "side", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0036] Figure 1 This is a partial structural diagram of the chain-type sorting machine in this embodiment. Figure 1 The chain-type separator includes four conveying units 200 and an anti-material sticking mechanism installed above the conveying units 200. The number of conveying units 200 is determined according to the designed screening efficiency requirements and equipment size, and the specifications and dimensions of the anti-material sticking mechanism are designed to match the number and size of the conveying units 200.

[0037] Please see Figure 1 and Figure 2 As shown, the anti-material sticking mechanism provided in this embodiment includes four paddle units 100, each of which is installed above a conveying unit 200.

[0038] like Figure 6 and Figure 7As shown, the paddle unit 100 includes a mounting block 1 and a pair of connecting rod structures and a pair of paddles 4 symmetrically arranged on both sides of the mounting block 1. The connecting rod structures drive the paddles 4 to move. The connecting rod structures include a first connecting rod 2 and a second connecting rod 3. One end of the first connecting rod 2 is hinged to one end of the second connecting rod 3, forming a connecting rod structure that can be bent in the middle. The end of the first connecting rod 2 away from the second connecting rod 3 is hinged to the upper surface of the mounting block 1 by a bolt. In addition, the ends of the pair of connecting rod structures away from the mounting block 1 are rotatably connected to the periphery of a shaft 5. Specifically, the end of the second connecting rod 3 away from the first connecting rod 2 is rotatably connected to the periphery of the shaft 5, and the paddles 4 are fastened to the first connecting rod 2 by bolts. When the shaft 5 slides along the length of the mounting block 1, it can drive the first connecting rod 2 to rotate around the hinge point between the first connecting rod 2 and the mounting block 1, so that the paddles 4 can be close to or away from the side of the mounting block 1.

[0039] Among them, the paddle 4 is preferably made of hard plastic sheet, and the corners are rounded to avoid scratching the material.

[0040] In addition, the mounting block 1 has slots 101 on both sides that are adapted to the lever 4. The lever 4 can be rotated into the slots 101, making the overall structure more compact and avoiding interference with material conveying.

[0041] like Figure 5 The diagram shows the interaction between each paddle unit 100 and the conveying unit 200. The conveying unit 200 includes two rows of material rollers 11 and a chain 10 for driving the material rollers 11 to rotate and convey the material. The two rows of material rollers 11 are mounted on both sides of the chain 10. When the chain 10 rotates, the material rollers 11 move forward along the chain 10 and rotate on their own under the drive of gears. The mounting block 1 is connected to the frame and fixedly mounted on the chain 10. The paddle 4 can be extended above the material rollers 11.

[0042] In one possible implementation, a structure employing two motors 6 and a connecting rod 7 is used to synchronously drive the four paddle units 100. Specifically, the four paddle units 100 are arranged along the length of the connecting rod 7, and the mounting block 1 of each paddle unit 100 is perpendicular to the connecting rod 7. The upper end of the shaft 5 of each paddle unit 100 is fixed to the connecting rod 7. The two motors 6 are located at both ends of the connecting rod 7. The motors 6 are screw motors, and both ends of the connecting rod 7 are fitted with internally threaded bushings. The output shaft of the screw motor is threadedly connected to the internally threaded bushing. When the motors 6 rotate, they can drive the connecting rod 7 to slide along the length of the mounting block 1, thereby adjusting the opening and closing angle of the paddle 4.

[0043] During operation, the material to be screened is entered into the control panel, such as walnuts. The system automatically inputs the walnut size, and the motor 6 rotates, causing the paddle 4 to open at a certain angle. The paddle 4 can separate stacked or stuck walnuts, keeping them in a single layer for conveying. When the material to be screened does not require the use of the paddle 4, the motor 6 does not start, and the paddle 4 is tightened within the slot 101, thereby improving the applicability of the entire device.

[0044] In a preferred embodiment, please refer to Figure 3 As shown, to improve the accuracy of the unfolding angle of the paddle 4, two proximity switches 8 are also provided for detecting the displacement of the connecting rod 7. A sensing element 801 is installed on the connecting rod 7 to facilitate detection by the proximity switches 8. Preferably, the two proximity switches 8 are respectively fixedly installed on the mounting blocks 1 of the paddle units 100 near both ends of the connecting rod 7. The two proximity switches 8 are respectively connected to the nearest motor 6, thereby ensuring the synchronicity of the two motors 6 controlling the operation of the connecting rod 7 and preventing the connecting rod 7 from tilting, thus ensuring the consistency of the unfolding angle of the paddle 4 in each paddle unit 100.

[0045] In actual production, frequent production changes are required, necessitating frequent adjustments to the lever 4. Since motor 6 is a screw motor, after prolonged use, the friction between the screw and the threaded bushing mounted on the connecting rod 7 increases, requiring periodic lubrication. Therefore, oil cans 9 are installed at both ends of the connecting rod 7 to lubricate the output shaft of motor 6. The nozzle of the oil can 9 is aligned with the screw, and the oil injection rate of the oil can 9 is adjustable, thus ensuring the stability of motor 6 driving connecting rod 7.

[0046] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A mechanism for preventing material adhesion, characterized in that, It includes several paddle units (100) and drive components; The paddle unit (100) includes a mounting block (1) and a pair of paddles (4) symmetrically arranged on both sides of the mounting block (1). The drive assembly is connected to the pair of paddles (4) to drive the pair of paddles (4) to move synchronously, and can be unfolded into a "︿" shaped structure on both sides of the mounting block (1). The paddle unit (100) also includes a pair of linkage structures, which are symmetrically arranged about the mounting block (1); The linkage structure includes a first link (2) and a second link (3). One end of the first link (2) is hinged to one end of the second link (3). The end of the first link (2) away from the second link (3) is hinged to the upper surface of the mounting block (1). The end of the second link (3) away from the first link (2) is connected to the drive assembly for transmission, so as to drive the first link (2) to rotate around the hinge point between the first link (2) and the mounting block (1). The paddle (4) is fixedly installed on the first connecting rod (2); The paddle unit (100) also includes a shaft (5), and the end of the second connecting rod (3) away from the first connecting rod (2) is rotatably engaged with the circumference of the shaft. The drive assembly is connected to the shaft (5) in a transmission manner to drive the shaft (5) to move along the length direction of the mounting block (1). The drive assembly includes a motor (6) and a connecting rod (7). A plurality of the paddle units (100) are arranged along the length direction of the connecting rod (7). The shaft (5) is fixedly connected to the connecting rod (7). The motor (6) is driven to the connecting rod (7) to drive the connecting rod (7) to move along the length direction of the mounting block (1).

2. The anti-material adhesion mechanism according to claim 1, characterized in that, The mounting block (1) has slots (101) on both sides that are adapted to the paddle (4), and the paddle (4) can be rotated into the slots (101).

3. The anti-material adhesion mechanism according to claim 1, characterized in that, The motor (6) is a screw motor, and both ends of the connecting rod (7) are fixed with internal threaded bushings. The output shaft of the screw motor is threadedly connected to the internal threaded bushings.

4. The anti-material adhesion mechanism according to claim 3, characterized in that, It also includes a proximity switch (8) for detecting the displacement of the connecting rod (7), the proximity switch (8) is fixedly mounted on the upper surface of the mounting block (1), and the connecting rod (7) is equipped with a sensing plate (801) for easy detection by the proximity switch (8); the proximity switch (8) is connected to the motor (6).

5. The anti-material adhesion mechanism according to claim 3, characterized in that, The two ends of the connecting rod (7) are fixedly equipped with oil cans (9) for lubricating the output shaft of the motor (6).

6. A chain-type sorting machine, characterized in that, It includes a plurality of conveying units (200) and an anti-material sticking mechanism as described in any one of claims 1-5, wherein a plurality of the paddle units (100) are correspondingly arranged with respect to a plurality of conveying units (200).

7. A chain sorting machine according to claim 6, characterized in that, The conveying unit (200) includes two rows of material rollers (11) and a chain (10) for driving the material rollers (11) to rotate and convey. The two rows of material rollers (11) are installed on both sides of the chain (10). The mounting block (1) is positioned above the chain (10), and a pair of paddles (4) can be deployed above the two rows of material rollers (11).

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