A chain type pot seedling dividing device

Abstract

The application discloses a chain type pot seedling separating device, which comprises a conveying belt and a separating mechanism arranged at the end of the conveying belt; the separating mechanism comprises a first roller body and a second roller body rotating at the same speed, the diameter of the first roller body is larger than that of the second roller body, and the first roller body is closer to the end of the conveying belt than the second roller body. The chain type pot seedling separating device has the advantages that the two roller bodies rotating at the same speed but having different diameters are used for separating pot seedlings, the structure is simple, the two roller bodies and the conveying belt are driven to rotate by the same motor, and complicated cooperative control is not needed, so that the cost is low; during the separating process, the conveying belt does not need to stop running, the two roller bodies act on two adjacent pot seedlings, and the two pot seedlings can be separated, the continuous conveying and separating of the pot seedlings can be realized, and the separating efficiency and the conveying efficiency are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural machinery, in particular to a chain type pot seedling separating device. BACKGROUND

[0002] In the field of agriculture, many crops need to be first cultivated, and then the cultivated seedlings are transplanted to the land to complete the planting of crops. In order to facilitate the transplantation of crops, the scheme of using degradable seedling pots for cultivation and then transplanting the seedling pots together with the seedlings into the soil has been relatively mature. In order to realize continuous seedling supply, the seedling pots are generally connected in a chain shape, and then the seedling pots are separated and transplanted into the soil in sequence during transplantation. In the prior art, in order to separate the seedling pots, the connecting belt between the seedling pots is generally cut by a shearing mechanism. For example, the prior art CN105706597A discloses a single-row paper pot seedling transplanting machine seedling separating mechanism, which includes a disc cutting knife, a conveying chain conveying device, a rack, a stepping motor, and a seedling guiding cylinder. The conveying chain conveying device is connected to the stepping motor. During operation, the conveying chain conveying device needs to be controlled to move intermittently to wait for the disc cutting knife to cut the pot seedlings. This requires relatively accurate control of each structure, which has a high control cost. In addition, the applicant's prior application CN116076206A discloses a linkage between the cutting mechanism and the pushing mechanism to solve the coordination difficulty problem of the two mechanisms. However, this scheme increases the complexity of the structure and the cost of the structure. SUMMARY

[0003] The present application provides a chain type pot seedling separating device with simple structure, low cost, and the ability to realize continuous transportation and separation of pot seedlings.

[0004] Technical scheme: In order to achieve the above-mentioned purpose, the chain type pot seedling separating device of the present application comprises a conveying belt and a seedling separating mechanism arranged at the end of the conveying belt.

[0005] The seedling separating mechanism comprises a first roller body and a second roller body rotating at the same speed in the same direction. The diameter of the first roller body is greater than the diameter of the second roller body, and the first roller body is closer to the end of the conveying belt than the second roller body.

[0006] The seedling separating device is used for separating pot seedlings in a pot chain, and the adjacent pot seedlings are fixed by viscose. When the pulling force on the two pot seedlings is greater than a preset value, the pot seedlings can be separated. In use, the pot chain is laid on the conveying belt, the center distance between the first roller and the second roller is equal to the center distance between the adjacent two pot seedlings in the pot chain, the conveying belt conveys the pot seedlings to the position of the seedling separating mechanism, the first roller and the second roller act on the two pot seedlings respectively, the surface linear speed of the first roller is greater than that of the second roller because the two rollers rotate at the same speed and have different diameters, the movement speed of the pot seedlings acted on by the two rollers is different, the distance between the two pot seedlings gradually increases, the two pot seedlings can be separated, and the seedling separating is realized.

[0007] Further, the conveying belt is driven to rotate by a driving roller, the driving roller is driven to rotate by a motor, first and second synchronous gear sets are respectively arranged between the shaft of the driving roller and the first and second rollers, the first synchronous gear set is composed of two gears with the same number of teeth, the two gears are coaxially installed with the shaft and the first roller, the second synchronous gear set is composed of two gears with the same number of teeth, the two gears are coaxially installed with the shaft and the second roller, so that the rotation speeds of the first and second rollers and the shaft are equal, and the rotation speeds of the first and second rollers are opposite to that of the driving roller. Preferably, the radius of the second roller is equal to the sum of the radius of the driving roller and the thickness of the conveying belt, so that the surface linear speed of the second roller is equal to that of the conveying belt, the movement direction of the point on the second roller close to the conveying belt is consistent with that of the point on the upper end surface of the conveying belt, the second roller and the conveying belt form a clamping action on the pot seedlings, the normal speed of the pot seedlings can be maintained, the second roller will not slow down the speed of the pot seedlings, and the separated pot seedlings will not drag the whole pot chain to make the speed faster.

[0008] Further, the conveying belt is obliquely installed, first and second side plates are respectively formed on the high and low sides of the conveying belt, and the second side plate is higher than the lower edge of the conveying belt.

[0009] Further, a guide hopper is installed at the end of the conveying belt, and the guide hopper is installed in an upright position. In this way, when the pot seedlings are arranged on the conveying belt, the bottoms of the pot seedlings are pressed against each other under the action of gravity, the pot seedlings can be kept in order, and the roots of the separated pot seedlings can be tilted downward, so that the posture of the pot seedlings after falling is correct.

[0010] Further, the first and second rollers are installed on the obliquely upper side of the second side plate, the first and second synchronous gear sets are installed on the obliquely lower side of the second side plate, and the motor is connected to the first side plate through a motor support.

[0011] Furthermore, a tensioning mechanism is provided between the first end of the conveyor belt and the first side plate and the second side plate.

[0012] Furthermore, a water spraying mechanism is provided between the first roller and the second roller.

[0013] Beneficial effects: The chain-type seedling separating device of the present invention has the following technical effects:

[0014] The seedlings in pots are separated by two rollers that rotate at the same speed but with different diameters. The structure is simple, and the two rollers and the conveyor belt are driven by the same motor. No complex coordination control is required, so the cost is very low.

[0015] During seedling separation, the conveyor belt does not need to stop running. The two rollers can separate the two adjacent seedlings by acting on them, which can realize continuous transportation and separation of seedlings, and improve the efficiency of seedling separation and transportation.

[0016] The difficulty of separating seedlings is reduced by using a water spraying mechanism to assist in the separation process. Attached Figure Description

[0017] Figure 1 This is a structural diagram of a paper pot seedling tray;

[0018] Figure 2 A three-dimensional view of a chain-type potted seedling separating device;

[0019] Figure 3 This is a front view of a chain-type seedling separating device;

[0020] Figure 4 This is a partial structural diagram of the seedling separation device in a preferred embodiment.

[0021] In the diagram: 1-Conveyor belt; 11-Water spraying mechanism; 2-Seedling separation mechanism; 21-First roller; 22-Second roller; 3-Motor; 4-Shaft; 5-First synchronous gear set; 6-Second synchronous gear set; 7-First side plate; 8-Second side plate; 9-Guide bucket; 10-Tensioning mechanism; a-Pot seedling. Detailed Implementation

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] like Figures 2-3 The chain-type seedling separating device shown includes a conveyor belt 1 and a separating mechanism 2 placed at the end of the conveyor belt 1; the separating mechanism 2 includes a first roller 21 and a second roller 22 rotating in the same direction at the same speed, the diameter of the first roller 21 is larger than the diameter of the second roller 22, and the first roller 21 is closer to the end of the conveyor belt 1 than the second roller 22.

[0024] The aforementioned seedling separation device is used to separate seedlings from a chain of potted seedlings (a). Adjacent seedlings (a) are glued together. When the tensile force on two seedlings (a) exceeds a preset value, the seedlings (a) can be separated. In use, the seedlings (a) are arranged as follows: Figure 1 The composite arrangement of paper seedling trays is shown. The paper seedling trays are manually unfolded into a chain and laid straight on the conveyor belt 1, with the seedlings a lying down (that is, the bottom of the seedling is not in contact with the conveyor belt 1, but the side wall is in contact with the conveyor belt 1). The center distance between the first roller 21 and the second roller 22 is equal to the center distance between two adjacent seedlings a in the chain. The conveyor belt 1 transports the seedlings to the seedling separation mechanism 2. The first roller 21 and the second roller 22 act on two seedlings a respectively. Since the two rollers rotate at the same speed but have different diameters, the surface linear velocity of the first roller 21 is greater than that of the second roller 22. This makes the movement speed of the seedlings a acting on the two rollers different, and the distance between them gradually increases, which can separate the two seedlings a and realize seedling separation.

[0025] Preferably, the conveyor belt 1 is driven by a drive roller, which is driven by a motor 3. A first synchronous gear set 5 and a second synchronous gear set 6 are respectively provided between the shaft 4 of the drive roller and the first roller 21 and the second roller 22. The first synchronous gear set 5 consists of two gears with equal number of teeth, which are coaxially mounted with the shaft 4 and the first roller 21, respectively. The second synchronous gear set 6 consists of two gears with equal number of teeth, which are coaxially mounted with the shaft 4 and the second roller 22, respectively. In this way, the rotational speeds of the first roller 21, the second roller 22, and the shaft 4 are equal, and the rotational speeds of the first roller 21, the second roller 22, and the drive roller are opposite. Preferably, the radius of the second roller 22 is equal to the sum of the radius of the drive roller and the thickness of the conveyor belt 1. Thus, the surface linear velocity of the second roller 22 is equal to the surface linear velocity of the conveyor belt 1, and the movement direction of the point on the second roller 22 near the conveyor belt 1 is consistent with the movement direction of the point on the upper end face of the conveyor belt 1. In this way, the second roller 22 and the conveyor belt 1 form a clamping effect on the seedling a, which can maintain the normal speed of the seedling a. The second roller 22 will not slow down the movement speed of the seedling a, and the separated seedling a will not drag the whole seedling chain, causing the speed to increase.

[0026] The conveyor belt 1 is installed at an angle, and a first side plate 7 and a second side plate 8 are formed on the high and low sides of the conveyor belt 1, respectively. The second side plate 8 is higher than the lower edge of the conveyor belt 1. A tensioning mechanism 10 is provided between the beginning of the conveyor belt 1 and the first side plate 7 and the second side plate 8.

[0027] The end of the conveying belt 1 is provided with a guide hopper 9, which is vertically installed. In this way, when the seedling pots a are arranged on the conveying belt 1, the bottoms of the seedling pots a are abutted under the action of gravity, so that the seedling pots can be kept in order, and the roots of the separated seedling pots a are inclined downward, and then the seedling pots a can be ensured to fall in a correct posture through the guide hopper 9.

[0028] Correspondingly, the first roller body 21 and the second roller body 22 are both installed on the obliquely upper side of the second side plate 8, the first synchronous gear set 5 and the second synchronous gear set 6 are both installed on the obliquely lower side of the second side plate 8, and the motor 3 is connected to the first side plate 7 through a motor support.

[0029] In the pot chain, the seedling pots a are fixed by environmentally friendly adhesive, which can be easily separated after being contacted with water. In order to easily separate the adjacent two seedling pots a, a water spraying mechanism 11 is arranged between the first roller body 21 and the second roller body 22, which can effectively weaken the connection force between the two seedling pots a by spraying water to the connection position between the two seedling pots a, so as to facilitate the separation of the two seedling pots a by the two roller bodies.

[0030] In order to grasp the timing of water spraying, the first roller body 21 and the second roller body 22 are respectively connected to the first synchronous gear set 5 and the second synchronous gear set 6 through pressure sensors, that is, the first pressure sensor is arranged between the first roller body 21 and the first shaft connected to the first synchronous gear set 5, and the second pressure sensor is arranged between the second roller body 22 and the second shaft connected to the second synchronous gear set 6. The first pressure sensor, the second pressure sensor and the water spraying mechanism 11 are all connected to a controller, which judges whether the pressure signals of the first pressure sensor and the second pressure sensor both exceed the preset value at the same time (the pressure signals of the two pressure sensors both indicate that the first roller body 21 and the second roller body 22 have been pressed to the seedling pots a and have been subjected to the reaction force of the seedling pots a), and if so, controls the water spraying mechanism 11 to spray a certain amount of water. Through the above method, the timing of water spraying can be effectively grasped, and water is sprayed only when necessary to separate the adhesive, which not only saves water, but also prevents the paper pots from being damaged due to being wetted by the continuous water flow, and affects the subsequent planting operation.

[0031] The above only describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several improvements and refinements without departing from the principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A chain type seedling dividing device, comprising a conveying belt (1) and a seedling dividing mechanism (2) arranged at the end of the conveying belt (1), characterized in that: the seedling dividing mechanism (2) comprises a first roller (21) and a second roller (22) rotating at a constant speed, the diameter of the first roller (21) is larger than that of the second roller (22), and the first roller (21) is closer to the end of the conveying belt (1) than the second roller (22); the conveying belt (1) is arranged obliquely, and first and second side plates (7, 8) are arranged on the high and low sides of the conveying belt (1) respectively, the second side plate (8) is higher than the lower edge of the conveying belt (1), and a water spraying mechanism (11) is arranged between the first roller (21) and the second roller (22). The conveying belt (1) is driven to rotate by a driving roller, the driving roller is driven to rotate by a motor (3), and a first and a second synchronous gear set (5, 6) are arranged between the shaft body (4) of the driving roller and the first and second rollers (21, 22) respectively. A guide hopper (9) is arranged at the end of the conveying belt (1), and the guide hopper (9) is arranged vertically.

2. The chain pot seedling dividing device according to claim 1, wherein The first and second rollers (21, 22) are arranged on the oblique upper side of the second side plate (8).

3. The chain pot seedling dividing device according to claim 1, wherein A tensioning mechanism (10) is arranged between the first and second side plates (7, 8) and the leading end of the conveying belt (1).

4. The chain pot seedling dividing device according to claim 1, wherein ​ 5. The chain pot seedling dividing device according to claim 1, wherein ​

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