Tobacco plant topping device
Technical Field
The utility model relates to the technical field of tobacco field planting, in particular to a tobacco plant topping device.
Background
Topping is an important operation link of tobacco field management, tobacco leaves can be promoted to develop more fully by cutting stems at the tops of tobacco plants, the quality of leaves is improved, the period of topping operation is generally the bud emergence period of the tobacco plants, at the moment, flower buds are formed at the tops of the tobacco plants, and partial flower buds are allowed to bloom.
The existing topping tool is provided with a topping machine with mechanized operation, but the topping machine is more suitable for topping in the full bloom stage, and at the moment, the top stems completely pass through the leaves, so that the probability of damaging the top leaves can be reduced, but other problems exist in practical application, namely, the tobacco plants are different in growth vigor and uneven in the ground, so that the top leaves with the highest value are easily broken. Therefore, in actual operation, the driven knife is matched with manual operation, but the phenomenon that the knife hurts people once the operation is improper is avoided because the tobacco plant stems are thicker and have a wooden layer. In the early bud emergence stage, the leaves near the flower buds are pulled by the other hand, the stems where the flower buds are located are cut by the other hand, and the operation is time-consuming and labor-consuming.
Disclosure of utility model
The utility model aims to provide a tobacco plant topping device which has a simple structure and can be operated by one hand, and the topping operation efficiency is greatly improved on the basis of ensuring the safety of operators.
In order to achieve the above purpose, the present invention provides the following technical solutions:
A tobacco plant topping device, the device includes cavity and towards the open cutter box in tobacco plant direction one side, and the locating plate has been set firmly to cutter box top surface, and spacing spout has been seted up to one side that the tobacco plant direction was kept away from to cutter box top surface, and in the slide bar bottom with spacing spout sliding fit visited the cutter box and be connected with the cutter is perpendicular, and the open end department of cutter box still is equipped with tractive ring, and tractive ring passes through drive mechanism transmission with the cutter and is connected.
Preferably, the transmission mechanism comprises a driving rack, a driven rack and gears, wherein the driving rack and the driven rack are arranged in parallel and at the same height, the gears are arranged between the driving rack and the driven rack and meshed with the two racks, a rotating shaft is coaxially arranged on the gears, and the rotating shaft is assembled with a bearing preset on the inner bottom wall of the cutter box.
Preferably, the cutter comprises an arc-shaped blade connected with one end of the driving rack, which faces the tobacco plants, the other end of the rack is vertically connected with the sliding rod, and the driven rack is connected with the traction ring.
Preferably, the traction ring comprises an arc-shaped plate corresponding to the arc-shaped blade and a limit stop fixedly connected with one end of the arc-shaped plate, and the limit stop is connected with one end, far away from the gear, of the driven rack.
Preferably, the method comprises the steps of, the inner cambered surface of the cambered plate faces to the cambered blade an anti-slip cushion layer is arranged on the inner cambered surface.
Preferably, the top of the sliding rod is provided with a through hole, the positioning plate is provided with a limiting rod penetrating through the through hole, the free end part of the limiting rod is provided with a bump, and the limiting rod between the positioning plate and the sliding rod is sleeved with a reset spring.
The working process of the utility model is as follows:
Firstly, fingers are put on a positioning plate, a slide bar is positioned at a palm tiger mouth, then the device is moved to the top of a tobacco plant, then a stalk at the top of the tobacco plant is moved in from a gap between an arc-shaped plate and a cutter box, finally the stalk is put on a limit baffle, then the slide bar is made to move towards the positioning plate by palm force, the slide bar overcomes the elasticity of a reset spring, the slide bar drives a driving rack and an arc-shaped blade to move linearly, the arc-shaped blade is made to move out from the cutter box, meanwhile, the driving rack drives a driven rack to move into the cutter box through meshing transmission of gears, and meanwhile, the driven rack drives the arc-shaped plate and the stalk to move towards the cutter box, so that the stalk can be cut after the arc-shaped blade contacts the arc-shaped plate. And then the palm is unloaded, the reset spring drives the corresponding component to reset, and the next tobacco plant can be subjected to topping operation.
In the utility model, the limit stop is arranged to be attached to the stalk, so that the stalk can be ensured to be in the cutting range of the arc-shaped blade, and meanwhile, the arrangement of the anti-slip gasket can prevent the stalk from sliding on the intrados of the arc-shaped plate, so that the stalk part is moved out of the cutting range. In addition, in the cutting process, the arc-shaped plate pulls the stalks, so that the cutting effect is greatly improved.
When the cutter is not in use, the arc-shaped blade is positioned in the cutter box, so that people are prevented from being injured by sharp edges.
Compared with the prior art, the utility model has the advantages that the structure is simple, the operation can be performed by one hand, and the topping operation efficiency is greatly improved on the basis of ensuring the safety of operators.
Drawings
Fig. 1 is a schematic structural view of a topping device according to an embodiment;
fig. 2 is a schematic view of the internal structure of a cutter box of the topping device according to the embodiment.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1-2, a tobacco plant topping device, the device includes cavity and towards the open cutter box 1 in tobacco plant direction one side, and cutter box 1 top surface has set firmly locating plate 11, and spacing spout 12 has been seted up to one side that the tobacco plant direction was kept away from to cutter box 1 top surface, and in the slide bar 2 bottom of spacing spout 12 sliding fit visited cutter box 1 and with the one end fixed connection of initiative rack 21, initiative rack 21 is connected with arc blade 25 towards the one end of tobacco plant.
The top of the sliding rod 2 is provided with a through hole, the positioning plate 11 is provided with a limiting rod 13 penetrating through the through hole, the free end part of the limiting rod is provided with a bump 14, and the limiting rod 13 between the positioning plate 11 and the sliding rod 2 is sleeved with a reset spring 15.
The bottom wall of the tool box 1 is also provided with a driven rack 22 which is parallel to the driving rack 21 and is arranged at the same height, a gear 23 for meshing and driving the two racks is arranged between the driving rack 21 and the driven rack 22, the gear 23 is coaxially provided with a rotating shaft 24, and the rotating shaft 24 is assembled with a bearing preset on the inner bottom wall of the tool box 1.
The device also comprises a traction ring for traction of tobacco plant stalks, wherein the traction ring comprises an arc-shaped plate 3 arranged corresponding to the arc-shaped blade 25 and a limit stop 31 fixedly connected with one end of the arc-shaped plate 3, and the limit stop 31 is connected with one end of the driven rack 22 far away from the gear 23. The inner cambered surface of the cambered plate 3 faces the cambered blade 25 and the inner cambered surface is provided with an anti-slip cushion layer.
The working process of the utility model is as follows:
Firstly, fingers are put on the positioning plate 11, the slide bar 2 is positioned at the palm tiger mouth, then the device is moved to the top of a tobacco plant, then a stem at the top of the tobacco plant moves in from a gap between the arc plate 3 and the cutter box 1, finally the stem is abutted against the limit baffle 31, then the slide bar 2 moves towards the positioning plate 11 by overcoming the elastic force of the reset spring 15 by palm exertion force, the slide bar 2 drives the driving rack 21 and the arc blade 25 to linearly move so that the arc blade 25 moves out of the cutter box 1, meanwhile, the driving rack 21 drives the driven rack 22 to move into the cutter box 1 through the meshing transmission of the gear 23, and meanwhile, the driven rack 22 drives the arc plate 3 and the stem to move towards the cutter box 1, and the cutting of the stem can be realized after the arc blade 25 contacts the arc plate 3. Then the palm is unloaded, and the reset spring 15 drives the corresponding component to reset, so that the next tobacco plant can be subjected to topping operation.
In the utility model, the limit stop 31 is arranged to be abutted against the stalk, so that the stalk can be ensured to be in the cutting range of the arc-shaped blade 25, and meanwhile, the arrangement of the anti-slip gasket can prevent the stalk from sliding on the intrados of the arc-shaped plate 3, so that the stalk part is moved out of the cutting range. In addition, in the cutting process, the arc-shaped plate 3 pulls the stalks, so that the cutting effect is greatly improved.
In the non-use state of the utility model, the arc-shaped blade 25 is positioned in the cutter box 1, so that people are prevented from being injured by sharp edges.