Material returning device of red date sorting machine

Abstract

The utility model relates to the technical field of red date processing, and discloses a material returning device of a red date sorting machine, which comprises a screening machine frame, a conveying assembly is arranged on the screening machine frame and comprises a conveying belt, a first material returning assembly is arranged at the end of the conveying belt, a second material returning assembly is arranged at the tail end of the conveying belt, and a material returning conveying belt is arranged in parallel. A feeding hopper is arranged below a discharging port of the returning conveying belt, side plates are arranged on the two sides of the conveying belt and used for preventing single-row red dates from falling off, the first returning assembly comprises a moving plate arranged on the outer sides of the side plates, a plurality of pushing rods are arranged on the inner wall of the moving plate, the opposite pushing rods on the two sides are arranged in a staggered mode, and a through groove is formed between every two adjacent pushing rods. The material pushing rod is used for pushing the red dates out of the through groove, recovery of the red dates falling from the front section of the conveying belt and falling of the accumulated red dates at the visual detection position are well achieved, loss of red date raw materials is avoided, and the red date sorting device has the advantages of improving the red date sorting efficiency and effectively recovering the red dates.

Description

Technical Field

[0001] This utility model relates to the field of jujube processing technology, and in particular to a material return device for a jujube sorting machine. Background Technology

[0002] As a common and popular agricultural product, the sorting of jujubes according to their quality and specifications is a crucial step in the processing and sales of jujubes. In the jujube sorting operation, the sorting machine plays a key role, while the return material device is an important component that ensures the sorting efficiency and accuracy.

[0003] Chinese patent document CN218424203U discloses a jujube recycling device for a jujube screening machine. It features a corresponding recycling pipe at the discharge end of a conveyor belt. Jujubes that fail to pass through the screen fall into the recycling pipe and then down through the pipe onto a conveyor belt on a recycling rack. The conveyor belt continuously transports the jujubes forward until they are collected in the feeding hopper. However, existing jujube recycling devices have the following problems during use: 1. During the jujube conveying process, jujubes often stack up. Because the conveyor belt is a single-lane channel, stacked jujubes easily fall outside the conveyor belt and cannot be collected due to unstable center of gravity or mutual compression, resulting in jujube waste; 2. When stacked jujubes enter the visual inspection device, the device may fail to detect the size of two stacked jujubes, requiring the two stacked jujubes to be collected for secondary inspection, resulting in low inspection efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a return device for a jujube sorting machine, which can improve the sorting efficiency of jujubes and effectively recover jujubes.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a return material device for a jujube sorting machine, including a screening frame, a conveying component on the screening frame, characterized in that: the conveying component includes a conveyor belt, a first return material component at the end of the conveyor belt, a second return material component at the tail end, a parallel return material conveyor belt, a feeding hopper below the discharge port of the return material conveyor belt, and side plates on both sides of the conveyor belt to prevent single rows of jujubes from falling.

[0006] The first return material assembly includes a movable plate disposed on the outer side of the side plate. Multiple push rods are vertically disposed on the inner wall of the movable plate. The push rods on two opposite movable plates are staggered. A through groove is disposed between two adjacent push rods. The push rods are slidably connected to the upper end of the side plate to push the jujubes out of the through groove. A sliding groove is disposed below the through groove and inclined downward. A vertical guide hopper is disposed at the lower end of the sliding groove. A guide channel is disposed below the guide hopper and inclined towards the return material conveyor belt. The assembly also includes a movable component that drives the movable plate to move left and right.

[0007] By adopting the above technical solution, the first return component at the end of the conveyor belt and the second return component at the tail work together to allow jujubes to be recycled at different positions. The first return component moves the moving plate left and right through the moving component. The push rods on the two opposite moving plates are staggered. During the movement, the push rods can push the stacked jujubes towards the chute. The jujubes slide into the vertical guide hopper along the inclined chute, and then through the discharge channel and the inclined guide channel, and are finally guided to the return conveyor belt. This ensures that subsequent jujubes pass through one by one, preventing the stacked jujubes from affecting the detection effect and sorting efficiency of the visual inspection device, thus improving the detection efficiency of the visual inspection device. At the same time, it ensures the continuity and efficiency of the jujube sorting process, reduces the loss of jujubes, and thus improves the jujube sorting efficiency and return efficiency.

[0008] A further feature of this invention is that the moving component includes a mounting plate, on which two parallel slide rails are provided, and a slider is slidably connected to the two slide rails. Two parallel racks are fixedly provided on the top of the slider in a direction perpendicular to the slide rails. A gear is rotatably connected to the mounting plate, and the two ends of the gear mesh with the racks respectively. The moving plate is vertically connected to a side plate parallel to the slider and the racks. A cylinder is provided on the mounting plate, and the piston rod of the cylinder is fixedly connected to any rack.

[0009] By adopting the above technical solution, when the cylinder extends and retracts, it pushes the slider connected to it to move on the slide rail. Since the two ends of the gear mesh with the rack on the slider, the moving plate connected to the slider can achieve smooth and precise left and right movement. This ensures that the push rod on the moving plate can accurately push the red dates at the end of the conveyor belt through the through groove, slide, and other structures to the return conveyor belt, reducing the loss of red dates and effectively improving the accuracy and efficiency of the return.

[0010] A further feature of this invention is that the mounting plate is fixed to the middle of the upper and lower belts of the conveyor belt by a fixing plate.

[0011] By adopting the above technical solution, the moving component can drive the moving plate to move left and right more stably, thereby controlling the pushing operation of the push rod on the jujubes more precisely. At the same time, it ensures that the component will not be displaced due to vibration or external force during operation, thus ensuring the efficiency and stability of the first return component in the return process and avoiding the impact of structural loosening and other problems on the return operation of the jujube sorting machine.

[0012] The present invention is further configured such that: the second return material assembly includes a discharge channel, the top of the discharge channel is provided with a feed inlet and the bottom is provided with a discharge outlet, the feed inlet is located at the tail end of the conveyor belt and the discharge outlet is located above the second guide channel, the bottom of the discharge channel is provided with the second guide channel, and the second guide channel is inclined toward the direction of the return material conveyor belt.

[0013] By adopting the above technical solution, the red dates arranged side by side at the tail end of the conveyor belt will enter through the inlet at the top of the discharge channel of the second return component. Under the action of gravity, the red dates move along the return conveyor belt in two directions along the discharge channel and the guide channel, and finally fall onto the return conveyor belt through the discharge port. This allows the red dates at the tail end to be collected in an orderly manner, preventing them from scattering randomly and improving the recovery rate of the red dates.

[0014] The present invention is further configured such that: the conveying components are provided in multiple sets, the multiple sets of conveying components are arranged in parallel, and the bottoms of multiple guide hoppers are connected to the same guide channel.

[0015] By adopting the above technical solution and setting up multiple sets of parallel conveying components, more dates can be processed at the same time, which increases the throughput of date sorting. The dates in the corresponding first return components slide down through the guide hopper. Since the bottoms of multiple guide hoppers are connected to the same guide channel, the dates conveyed by different conveying components can be integrated into the common guide channel, which improves the working efficiency and return capacity of the sorting machine.

[0016] A further feature of this invention is that a protective layer is fixedly provided at the end of the push rod that contacts the jujube. The protective layer is one of sponge, foam, silicone or plush fabric.

[0017] By adopting the above technical solution, damage to the jujubes during the pushing process can be effectively avoided, maintaining the quality and integrity of the jujubes and reducing quality problems such as breakage and deformation caused by the return process. This ensures the quality foundation of subsequent processing stages of the jujubes and improves the product quality stability of the entire jujube sorting process.

[0018] A further feature of this invention is that the upper end of the slide groove is flush with the lower end of the through groove.

[0019] By adopting the above technical solution, when the push rod pushes the jujubes, the jujubes can smoothly slide from the through groove to the slide groove, avoiding jamming or jumping due to height difference. This makes the movement path of the jujubes in the return process more continuous and stable. This stable connection helps to achieve continuous and stable jujube conveying and improves the overall conveying efficiency.

[0020] The present invention is further configured such that the angle between the bottom plate of the first guide channel and the horizontal line is 30° to 45°, and the angle between the bottom plate of the second guide channel and the horizontal line is 30° to 45°.

[0021] By adopting the above technical solution, the flow direction of jujubes during the transmission process can be optimized, the resistance of jujubes when turning can be reduced, the smooth flow of jujubes can be ensured, and the risk of congestion at the turning point can be reduced. It will not cause the jujubes to slide too slowly or even block due to the angle being too small, nor will it cause the jujubes to slide too fast and possibly rush out of the guide channel or cause impact damage due to the angle being too large. It effectively ensures that the jujubes enter the return conveyor belt in an orderly and stable manner, and improves the efficiency of the entire return process.

[0022] A further feature of this invention is that baffles are provided on both sides of the return conveyor belt, and the return conveyor belt is rotatably connected to the drive pulley and the driven pulley, with the drive pulley fixedly connected to the output shaft of the motor.

[0023] By adopting the above technical solution, the baffles set on both sides of the return conveyor belt can effectively prevent the jujubes from slipping off the sides during the conveying process, ensuring that the jujubes are always transported stably within the specified range of the conveyor belt, avoiding the scattering and waste of jujubes, and improving the accuracy and integrity of the return material. At the same time, the return conveyor belt is connected by the sleeve of the active pulley and the driven pulley, ensuring the stable transmission of the conveyor belt under the drive of the motor, so that the return conveyor belt can obtain stable and continuous power, ensuring that it runs smoothly at an appropriate speed, and ensuring the smooth progress of the jujube sorting and return process.

[0024] The beneficial effects of this utility model are:

[0025] 1. This application utilizes the coordinated operation of a first return component at the end of the conveyor belt and a second return component at the tail end to effectively recycle jujubes at different locations, avoiding omissions and waste of jujubes, thereby improving the sorting efficiency and return efficiency of jujubes, and ensuring the continuity and efficiency of the entire sorting process.

[0026] 2. This application can accurately push the dates from the stacked screw through the push rod of the moving component, ensuring that the dates pass through one by one and will not fall off midway. At the same time, it can effectively prevent the dates from the stacked screw and the dates that fall into the detection device from affecting the detection effect and sorting efficiency, ensuring the accuracy of visual inspection and ensuring that the quality of the sorted dates meets the requirements.

[0027] 3. The end of the push rod on the moving component of this application that contacts the jujube is provided with a protective layer, which reduces the impact and pressure on the jujube during the pushing process, avoids damage to the jujube due to collisions during operation, and maintains the integrity and quality of the jujube.

[0028] 4. This application features a design with multiple sets of parallel conveying components and a bottom-connected material guide channel, enabling multiple conveyor lines to operate simultaneously and efficiently, thereby improving the sorting machine's processing capacity and working efficiency. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0031] Figure 2 This is the right view of this utility model.

[0032] Figure 3 This is a schematic diagram of the structure of the mobile component of this utility model.

[0033] In the diagram, 1. Screening frame; 2. Conveyor belt; 3. Side plate; 4. First return material assembly; 41. Moving assembly; 411. Mounting plate; 412. Slide rail; 413. Slider; 414. Rack; 415. Gear; 416. Moving plate; 417. Push rod; 418. Through groove; 419. Cylinder; 42. Slide chute; 43. Guide hopper; 44. Guide channel one; 5. Second return material assembly; 51. Discharge channel; 52. Guide channel two; 6. Return material conveyor belt; 7. Baffle; 8. Motor; 9. Feeding hopper. Detailed Implementation

[0034] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0035] Example: A return material device for a jujube sorting machine, such as... Figure 1-3As shown, the system includes a screening frame 1, on which a conveyor assembly containing a conveyor belt 2 is provided. A first return assembly 4 is located at one end of the conveyor belt 2, a second return assembly 5 is located at the other end, and a return conveyor belt 6 is arranged parallel to it. A feeding hopper 9 is located below the outlet of the return conveyor belt 6. Side plates 3 are provided on both sides of the conveyor belt 2 to prevent single-row jujubes from falling. The first return assembly 4 includes a moving assembly 41 and a fixed plate. The moving assembly 41 includes a mounting plate 411, which is fixed to the middle of the upper and lower sections of the conveyor belt 2 by the fixed plate. Two parallel slide rails 412 are provided on the mounting plate 411, and two sliders 413 are slidably connected to the slide rails 412. A rack 414 is fixed to one end of the top of each slider 413. A gear 415 is rotatably connected to the mounting plate 411, with both ends of the gear 415 meshing with the rack 414. A moving plate 416 is fixedly connected to the side plates 3 on both sides of the sliders 413. The mounting plate 411 is equipped with... There is a cylinder 419, and the piston rod of the cylinder 419 is fixedly connected to any rack 414. The inner wall of the moving plate 416 is vertically provided with multiple push rods 417 for pushing red dates out of the through groove 418. The end of the push rod 417 that contacts the red date is fixed with silicone. The push rods 417 on the two opposite moving plates are staggered. There is a through groove 418 between two adjacent push rods 417. There is a sliding groove 42 inclined downward below the through groove 418. There is a vertical guide hopper 43 at the lower end of the sliding groove 42. There is a guide channel 44 below the guide hopper 43. The guide channel 44 is inclined towards the return conveyor belt 6. The second return component 5 includes a discharge channel 51. The top of the discharge channel 51 is provided with an inlet and the bottom is provided with an outlet. The inlet is located at the tail end of the conveyor belt 2 and the outlet is located above the guide channel 52. The bottom of the discharge channel 51 is provided with the guide channel 52. The guide channel 52 is inclined towards the return conveyor belt 6.

[0036] Furthermore, the conveying components are provided in multiple sets, and the multiple sets of conveying components are arranged in parallel, with the bottom of multiple guide hoppers 43 connected to the same guide channel 44.

[0037] Furthermore, the angle between the bottom plate of the material guide channel 44 and the horizontal line is 30° to 45°.

[0038] Furthermore, the angle between the bottom plate of the second guide channel 52 and the horizontal line is 30° to 45°.

[0039] Furthermore, baffles 7 are provided on both sides of the return conveyor belt 6, and the return conveyor belt 6 is rotatably connected to the drive pulley and the driven pulley. The drive pulley is fixedly connected to the output shaft of the motor 8.

[0040] Working principle: The dates in the feeding hopper 9 are fed into the conveyor belt 2 by the feeding device. During the operation of the conveyor belt 2, when the dates of the stacked screw pass through the first return component 4, the cylinder 419 in the moving component 41 pushes the slider 413 to move on the slide rail 412. Through the transmission of gear 415 and rack 414, the moving plate 416 moves left and right. When the push rods 417 on the moving plate 416 move, they push the dates of the stacked screw out of the through groove 418. The dates slide into the vertical guide hopper 43 along the slide groove 42, and then are sent into the return conveyor belt 6 through the first guide channel 44. When the dates pass through the second return component 5, they enter from the inlet of the outlet channel 51 at the end of the conveyor belt 2, and fall into the return conveyor belt 6 from the outlet of the second guide channel 52 with the bottom inclined downward.

[0041] When the motor 8 is started, the return conveyor belt 6 continuously transports the jujubes to the upward hopper 9, and finally all of them are collected back into the upper hopper 9. The jujubes in the upper hopper 9 are then re-entered into the conveyor belt 2 for screening under the action of the feeding device, which constitutes a repeated screening and return process, avoiding the omission and waste of jujubes, thereby improving the sorting efficiency and return efficiency of jujubes, and ensuring the continuity and efficiency of the entire sorting process.

Claims

1. A return device for a jujube sorting machine, comprising a screening frame (1), wherein the screening frame (1) is provided with a conveying component, characterized in that: The conveying assembly includes a conveyor belt (2), with a first return material assembly (4) at one end and a second return material assembly (5) at the other end, and a return material conveyor belt (6) arranged in parallel. A feeding hopper (9) is provided below the discharge port of the return material conveyor belt (6), and side plates (3) are provided on both sides of the conveyor belt (2). The side plates (3) are used to prevent single-row red dates from falling. The first return material assembly (4) includes a movable plate (416) disposed on the outside of the side plate (3). The inner wall of the movable plate (416) is vertically provided with a plurality of push rods (417). The push rods (417) on two opposite movable plates (416) are staggered. A through groove (418) is provided between two adjacent push rods (417). The push rod (417) is slidably connected to the upper end of the side plate (3) for pushing the jujubes out of the through groove (418). A sliding groove (42) is provided below the through groove (418) at an incline. A vertical guide hopper (43) is provided at the lower end of the sliding groove (42). A guide channel (44) is provided below the guide hopper (43). The guide channel (44) is inclined towards the return material conveyor belt (6). It also includes a movable assembly (41) that drives the movable plate (416) to move left and right.

2. The material return device of the jujube sorting machine according to claim 1, characterized in that: The moving component (41) includes a mounting plate (411), on which two parallel slide rails (412) are provided. A slider (413) is slidably connected to the two slide rails (412). Two parallel racks (414) are fixedly provided on the top of the slider (413) in a direction perpendicular to the slide rails (412). A gear (415) is rotatably connected to the mounting plate (411). The two ends of the gear (415) are respectively engaged with the racks (414). The moving plate (416) is vertically connected to a side plate (3) parallel to the slider (413) and the racks (414). A cylinder (419) is provided on the mounting plate (411). The piston rod of the cylinder (419) is fixedly connected to any rack (414).

3. The material return device of the jujube sorting machine according to claim 2, characterized in that: The mounting plate (411) is fixed to the middle of the upper and lower belts of the conveyor belt (2) by a fixing plate.

4. The material return device of the jujube sorting machine according to claim 1, characterized in that: The second return material assembly (5) includes a discharge channel (51), which has an inlet at the top and a discharge outlet at the bottom. The inlet is located at the tail end of the conveyor belt (2) and the discharge outlet is located above the second guide channel (52). The bottom of the discharge channel (51) is provided with the second guide channel (52), which is inclined in the direction of the return material conveyor belt (6).

5. The material return device of the jujube sorting machine according to claim 1, characterized in that: The conveying components are provided in multiple sets, and the multiple sets of conveying components are arranged in parallel. The bottoms of the multiple guide hoppers (43) are connected to the same guide channel (44).

6. The material return device of the jujube sorting machine according to claim 1, characterized in that: The end of the push rod (417) that contacts the jujube is fixed with a protective layer, which is one of sponge, foam, silicone or plush fabric.

7. The material return device of the jujube sorting machine according to claim 1, characterized in that: The upper end of the slide groove (42) is flush with the lower end of the through groove (418).

8. The material return device of the jujube sorting machine according to claim 1, characterized in that: The angle between the bottom plate of the material guide channel (44) and the horizontal line is 30° to 45°.

9. The material return device of a jujube sorting machine according to claim 4, characterized in that: The angle between the bottom plate of the second guide channel (52) and the horizontal line is 30° to 45°.

10. The material return device of the jujube sorting machine according to claim 1, characterized in that: The return conveyor belt (6) is provided with baffles (7) on both sides. The return conveyor belt (6) is rotatably connected to the drive pulley and the driven pulley. The drive pulley is fixedly connected to the output shaft of the motor (8).

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