A conveying and sorting machine for fruit grading

Abstract

The utility model discloses a fruit grading conveying and screening machine relates to fruit grading screening machine technical field, including roll lever conveying and grading screening unit, feed unit, and the side of roll lever conveying and grading screening unit is provided with multiple grading collection mouth of parallel distribution, and the feed unit includes feed box, and the feed box is provided with the storage tank and the discharge port of intercommunication, and the inside one side of discharge port is hinged and is installed with the adjusting plate, and the one side of adjusting plate is equipped with the sliding block of sliding card, and the inside of the one side of feed box is provided with the guide slot, and the sliding rod is slidably installed in the guide slot, and the threaded rod is rotatably installed in the guide slot, in the utility model, through setting adjusting plate, utilize adjusting plate to adjust the opening size of discharge port, make the opening of discharge port only through a row single fruit once, thereby realized the purpose that fruit is even, single -layer place to the starting end of roll lever conveyer belt, avoids the fruit stacking influence grading accuracy.

Description

Technical Field

[0001] This utility model relates to the technical field of fruit grading and sorting machines, specifically a fruit grading conveying and sorting machine. Background Technology

[0002] Fruits need to be graded and sorted during packaging. Currently, roller grading machines are commonly used for grading granular fruits such as lychees. Roller grading machines mainly include a feeding unit, a roller conveying and grading unit, and a grading collection unit.

[0003] Some existing roller grading machines used for grading and screening granular fruits lack a feeding unit structure that can evenly distribute the fruit, which can easily lead to a large amount of fruit piling up on the rollers and affecting the grading accuracy. Utility Model Content

[0004] To address the problem that the feeding unit in some existing roller grading machines for grading granular fruits lacks a structure for evenly distributing the fruit, thus affecting the grading accuracy, the purpose of this invention is to provide a conveying and screening machine for fruit grading.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: a fruit grading conveying and screening machine, including a roller conveying grading and screening unit and a feeding unit. The feeding unit is installed at the top end of the roller conveying grading and screening unit. A plurality of grading collection ports are arranged in parallel on one side of the roller conveying grading and screening unit. The feeding unit includes a feeding box, which is installed at the top end of the roller conveying grading and screening unit. A storage tank and a discharge port are connected inside the feeding box. An adjusting plate is hinged to one side of the discharge port. A slider is slidably engaged on one side of the adjusting plate. A guide groove is opened on one side of the feeding box. A sliding rod is slidably installed in the guide groove, and one end of the sliding rod is hinged to the slider. A threaded rod is rotatably installed in the guide groove, and the threaded rod is threaded into the sliding rod. A knob is fixedly installed at one end of the threaded rod. First limiting grooves are opened on both sides inside the guide groove. First limiting blocks are fixedly installed on both sides of one end of the sliding rod, and the first limiting blocks are slidably engaged in the corresponding first limiting grooves.

[0006] Preferably, a vibration motor is fixedly installed on both sides of the feed box, and a buffer assembly is installed at each of the four corners of the bottom of the feed box. Each of the four buffer assemblies includes a sleeve, and the sleeve is fixedly installed on the roller conveyor grading and screening unit. A connecting block is slidably engaged inside each of the four sleeves, and the top of the connecting block is fixedly connected to the bottom of the feed box. A spring is fixedly installed inside each of the four sleeves, and the top of the spring contacts the bottom of the corresponding connecting block. A second limiting groove is opened on both sides of the inner wall of each of the four sleeves, and a second limiting block is fixedly installed on both sides of the bottom of each of the four connecting blocks, and the second limiting block is slidably engaged in the corresponding second limiting groove.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] In this invention, by setting an adjustment plate, a knob can be used to drive the threaded rod to rotate in both directions. The threaded rod drives the sliding rod to slide and extend within the guide groove. The sliding rod and the slider work together to push or pull the adjustment plate to adjust the size of the feeding port. This ensures that only one row of single fruits can pass through the feeding port at a time, thereby achieving the goal of evenly and single-layering the fruits at the beginning of the roller conveyor belt and avoiding the stacking of fruits from affecting the grading accuracy. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

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

[0011] Figure 2 This is a schematic diagram of the internal structure of the feed box of this utility model;

[0012] Figure 3 This is a schematic diagram of the cross-sectional structure of the feed box of this utility model;

[0013] Figure 4 This is a schematic diagram of the adjusting plate structure of this utility model;

[0014] Figure 5 This is a schematic diagram of the cross-sectional structure of the sleeve of this utility model.

[0015] In the diagram: 1-Roller conveyor grading and screening unit; 2-Feeding unit; 201-Feed box; 2011-Guide groove; 2012-First limiting groove; 202-Storage trough; 203-Vibration motor; 204-Discharge port; 205-Adjusting plate; 206-Sliding rod; 2061-First limiting block; 207-Threaded rod; 208-Knob; 209-Slider; 3-Buffer assembly; 301-Sleeve; 3011-Second limiting groove; 302-Connecting block; 3021-Second limiting block; 303-Spring; 4-Grading collection port. Detailed Implementation

[0016] To better understand the structure, functional features, and advantages of this utility model, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings:

[0017] Example:

[0018] like Figures 1 to 5 As shown, this utility model provides a fruit grading conveyor and screening machine, including a roller conveyor grading and screening unit 1 and a feeding unit 2. The roller conveyor grading and screening unit 1 is existing technology and mainly consists of a roller conveyor belt and a gap adjustment mechanism. The roller conveyor belt is composed of a series of parallel, rotatable metal rollers (usually cylindrical) forming a conveyor belt. All rollers are usually linked by chains, gears or belts and driven by a motor to rotate synchronously, ensuring that the fruit moves forward smoothly. The feeding unit 2 is installed at the top end of the roller conveyor grading and screening unit 1 (the starting end of the roller conveyor belt).

[0019] The roller conveyor grading and screening unit 1 has multiple parallel grading collection ports 4 on one side. The feeding unit 2 includes a feeding box 201, which is installed at the top end of the roller conveyor grading and screening unit 1. The feeding box 201 has a connected storage tank 202 and a discharge port 204. An adjusting plate 205 is hinged to one side of the discharge port 204. A slider 209 is slidably engaged on one side of the adjusting plate 205. A guide groove 2011 is provided on one side of the feeding box 201. A sliding rod 206 is slidably installed in the guide groove 2011, and one end of the sliding rod 206 is hinged to the slider 209. A threaded rod 207 is rotatably installed in the guide groove 2011, and the threaded rod 207 is threaded into the sliding rod 206. A knob 208 is fixedly installed at one end of the threaded rod 207. First, based on the desired fruit variety and maximum size of a single fruit, the knob 208 drives the threaded rod 207 to rotate in both directions. The threaded rod 207 drives the sliding rod 206 to slide and extend within the guide groove 2011. The sliding rod 206 and the slider 209 work together to push or pull the adjusting plate 205 to adjust the opening size of the discharge port 204. The opening size of the discharge port 204 is adjusted to the maximum size of a single fruit, ensuring that only one row of single fruits can pass through the opening of the discharge port 204 at a time. Next, the fruits to be graded and sorted are placed into the storage trough 202 in the feed box 201. The fruits in the storage trough 202 fall sequentially through the discharge port 204 onto the roller conveyor for grading and sorting. The roller conveyor belt of Yuan 1 is used to evenly and single-layerly spread the fruit at the beginning of the roller conveyor belt, thus avoiding the impact of fruit stacking on the grading accuracy. The roller conveyor belt is used to transport and grade the fruit. During the transport process, the gap adjustment mechanism gradually and continuously increases the gap (spacing) between adjacent rollers along the direction of fruit transport. When the fruit is transported forward on the roller, smaller fruits will not be able to continue to be supported when the gap is smaller than their diameter, and will fall into the gap between the rollers. Larger fruits will be supported by the roller and transported forward until they encounter a sufficiently large gap (greater than or equal to their diameter) before they fall.

[0020] Below the roller conveyor belt, a series of collection troughs are arranged along the conveying direction. Each collection trough corresponds to a specific size range of fruit grade. Each collection trough is connected to the corresponding grade collection port 4. When fruit falls from a certain gap, it will fall into the corresponding collection trough below and be discharged through the corresponding grade collection port 4, thereby achieving grading by size.

[0021] See Figure 3 and Figure 4The guide groove 2011 has a first limiting groove 2012 on both sides. The sliding rod 206 has a first limiting block 2061 fixedly installed on both sides of one end. The first limiting block 2061 is slidably locked in the corresponding first limiting groove 2012, so that the sliding rod 206 slides along the first limiting groove 2012 through the first limiting block 2061. The first limiting groove 2012 can limit the stroke of the first limiting block 2061 to prevent the sliding rod 206 from sliding out of the guide groove 2011.

[0022] See Figure 2 Vibration motors 203 are fixedly installed on both sides of the feeding box 201. The vibration motors 203 prevent the fruit from getting stuck in the feeding port 204 during feeding, thus affecting the feeding process.

[0023] See Figure 5 Each of the four corners of the bottom of the feed box 201 is equipped with a buffer assembly 3. Each of the four buffer assemblies 3 includes a sleeve 301, which is fixedly installed on the roller conveyor grading and screening unit 1. A connecting block 302 is slidably engaged inside each of the four sleeves 301, and the top of the connecting block 302 is fixedly connected to the bottom of the feed box 201. A spring 303 is fixedly installed inside each of the four sleeves 301, and the top of the spring 303 contacts the bottom of the corresponding connecting block 302. A second limiting groove 3011 is opened on both sides of the inner wall of each of the four sleeves 301. The bottom two sides of the connecting block 302 are fixedly installed with second limiting blocks 3021, and the second limiting blocks 3021 are slidably locked in the corresponding second limiting grooves 3011. The buffer assembly 3 can buffer the feed box 201. When the vibration motor 203 drives the feed box 201 to shake, the feed box 201 drives the connecting block 302 to move up and down in the sleeve 301 in cooperation with the spring 303. The second limiting groove 3011 in the sleeve 301 can limit the second limiting block 3021 on the connecting block 302 to prevent the connecting block 302 from sliding out of the sleeve 301.

[0024] Working Principle: In use, this invention first uses a knob 208 to rotate a threaded rod 207 in both directions, based on the desired fruit variety and maximum size of a single fruit. The threaded rod 207 then drives a sliding rod 206 to slide and extend within a guide groove 2011. The sliding rod 206, in conjunction with a slider 209, pushes or pulls an adjusting plate 205 to adjust the opening size of the discharge port 204. The opening size is adjusted to the maximum size of a single fruit, ensuring that only one row of fruits can pass through at a time. Next, the fruits to be graded are placed into the storage trough 202 in the feed box 201. The fruits in the storage trough 202 fall sequentially through the discharge port 204 to the starting end of the roller conveyor belt of the roller conveyor grading and sorting unit 1. This achieves the goal of evenly and layering the fruits at the starting end of the roller conveyor belt, preventing fruit stacking from affecting the grading process. The fruit is graded using a roller conveyor belt. During the conveying process, a gap adjustment mechanism gradually and continuously increases the gap between adjacent rollers along the direction of fruit transport. As the fruit is transported forward on the rollers, smaller fruits will not be able to continue to support themselves when the gap is smaller than their diameter and will fall through the gap. Larger fruits will be supported by the rollers and transported forward until they encounter a sufficiently large gap (greater than or equal to their diameter) before falling. Below the roller conveyor belt, a series of collection troughs are arranged along the conveying direction. Each collection trough corresponds to a specific size range of fruit grades. Each collection trough is connected to a corresponding grading collection port 4. When fruit falls from a certain gap range, it will fall into the corresponding collection trough below and be discharged through the corresponding grading collection port 4, thus achieving grading by size.

[0025] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

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