Girdling device for stem phloem of flue-cured tobacco

Abstract

The utility model belongs to the technical field of agricultural devices, and discloses a girdling device for the phloem of a flue-cured tobacco stem, which comprises an opening and closing control end, and the opening and closing control end consists of crossed metal handles for controlling opening and closing, a metal handle rotating shaft for controlling opening and closing and a telescopic control metal spring; the middle cross position of the metal handle is connected through a metal handle rotating shaft for controlling opening and closing, and opening and closing control is achieved by opening and closing the metal handle to press and loosen the metal spring. One end of the opening-closing control end is fixedly connected with the working end through a screw, and the other end is fixedly connected with the operating handle end; the operation end is composed of two semicircular metal clamping sleeves, a plurality of sets of vertical-strip-shaped cutters are embedded in the clamping sleeves, and the opening and closing control end controls opening and closing of the clamping sleeves, so that the clamping sleeves are fixed to the stem portion of a tobacco plant, and the cutters cut into the phloem portion of the tobacco stem. And the opening and closing fixed control end is used for keeping the operation end of the machine tool in a closed state in a non-operation state, so that storage and transportation are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural devices, and particularly relates to a device for girdling the phloem of flue-cured tobacco stems. Background Technique

[0002] As a leaf economic crop, the growth and development status of flue-cured tobacco leaves in the field and the subsequent maturity and yellowing status directly affect the quality of tobacco leaves and their industrial usability, and also directly affect the economic income of tobacco growers. Excessive nitrogen supply in the later stage of tobacco plant growth and development easily leads to late maturity and poor yellowing of leaves, and even black-burst tobacco may occur. After baking, the tobacco leaves are severely mottled and contain a lot of green, and they have almost no industrial utilization value, which is a great loss to tobacco farmers. The technique of girdling the tobacco plant stem mainly involves circumcising and stripping the phloem of the tobacco plant with a reasonable width, cutting off the channel for nutrients such as nitrogen in the soil to be transported from the roots to the tobacco plant, stopping the continuous supply of nitrogen in the soil to the tobacco plant, and promoting the maturity and yellowing of leaves. Xie Chunsheng et al. (in 2010), Ye Hanjiang (in 2014), etc. have widely applied and verified this technique in the regulation of various crops. In the research on the regulation and application of flue-cured tobacco maturity and yellowing, Luo Haibo et al. (in 2002) conducted a girdling experiment on tobacco stems and found that girdling can reduce the photosynthetic rate and root activity of leaves, increase the accumulation of photosynthetic products in leaves, and improve the industrial usability of flue-cured tobacco leaves, especially the upper leaves. The research results of Shen Fangke et al. (in 2011), Shu Haiyan (in 2002), Zeng Tao (in 2005), Yang Junxing (in 2007), etc. also obtained similar conclusions. Therefore, the technique of girdling the tobacco plant stem, as an effective means of regulating the maturity and yellowing of tobacco leaves and improving the quality of tobacco leaves, has been widely recognized and applied in tobacco agricultural production.

[0003] The agricultural production of tobacco leaves is different from that of other crops. It has the particularity of having the most production links, being labor-intensive, and having a large labor intensity. At the same time, adding each production link will increase the input of labor and production costs, which is not conducive to reducing labor and costs and improving the income of tobacco farmers, resulting in the fact that beneficial regulation techniques cannot be truly applied and promoted in production. Girdling the tobacco plant stem requires timely intervention and regulation after the vegetative growth of the tobacco plant is completed, especially during the period when the middle and upper leaves mature and turn yellow. This period is often the period of mature tobacco leaf harvesting, and the labor force is relatively short. Suitable girdling tools can greatly improve the operation efficiency and reduce the labor intensity at the same time. At present, the planting main body is aging, and it is an urgent need to invent light, simple to operate, time-saving and labor-saving machinery (tools) to realize this regulation technique in actual tobacco production.

[0004] Gao Kaixian et al. (in 2020) from the Wenshan Prefecture Company of Yunnan Provincial Tobacco Company designed and developed a device for girdling and breaking the tobacco stem, which is a device that girdles the phloem by holding the handle and winding the girdling end around the tobacco stem (see Figure 1 ).

[0005] Hu Yajie from China Tobacco Guangxi Industrial Co., Ltd. designed and developed a flue-cured tobacco stem girdling and breaking device. The working end is clamped on the tobacco stem, and the handle is held and rotated around the tobacco stem for one circle. The phloem of the tobacco plant stem is girdled by the top tool of the arc-shaped arm (see Figure 2 ).

[0006] Zhao Longjie et al. from Fengdu Branch of Chongqing Company, China National Tobacco Corporation designed and developed a method for promoting the yellowing of black-burst tobacco leaves by damaging the stem, and conducted relevant experimental verifications on the effect of this method (see Figure 3 ).

[0007] Considering the above various types of girdling tools, they are all hand-held pliers and field squatting operation modes. The operator holds the handle part of the tool, surrounds the tobacco stem with the working end for one circle, and then the tool on the working end cuts through the tobacco stem to form a fault in the epidermal phloem, completing the girdling of the tobacco stem. Such girdling pliers require the operator to hold the girdling pliers and squat in the tobacco field for operation, resulting in relatively high labor intensity and low operation efficiency. At the same time, it is analyzed that the working end of the current girdling pliers is a single blade, and the operator needs to hold the working handle and rotate around the tobacco plant for one circle to complete the cutting of the phloem of the stem. The black-burst tobacco stem is thick and strong, with a thick cortex and great difficulty in girdling, which easily leads to the failure of the regulation technology due to incomplete girdling. Due to the operation efficiency and operation quality of the above various types of girdling pliers being difficult to meet the needs of growers, they have not been widely applied and promoted in the production areas. Currently, some tobacco farmers in some tobacco-growing areas directly use sickles to scrape the phloem of the stem in order to better achieve the blocking effect, and the blocking effect is good, but it is time-consuming and laborious. Content of the Utility Model

[0008] Aiming at the problems existing in the prior art, the utility model provides a device for girdling the phloem of flue-cured tobacco stems. This device can realize a long-handle hand-held field operation mode, avoiding the operator squatting in the tobacco ridge to girdle each plant; at the same time, the girdling tool is designed as a closed annular cutting device assembled by two semi-circular metal rings. Two vertical rows of tools are evenly arranged on each semi-circular ring sleeve, and the operator only needs to rotate the tool around the tobacco plant by 1 / 4 circle to complete the cutting and peeling of the tobacco stem, which is time-saving and labor-saving.

[0009] The utility model is realized as follows: A device for girdling the phloem of flue-cured tobacco stems includes a hand-held end, and the hand-held end is composed of two parts: a handle and a control rod. The control metal rod is connected to the opening and closing control end, and the inner angle of the connection part is 135 degrees;

[0010] The opening and closing control end is composed of a metal handle for controlling opening and closing and a rotating shaft of the metal handle for controlling opening and closing; the middle cross position of the metal handle is connected by the rotating shaft of the metal handle for controlling opening and closing; one end of the opening and closing control end is fixedly connected to the working end by screws, and the other end is fixedly connected to the operation handle end. The fixed control end is arranged on the opening and closing control end;

[0011] The working end consists of an annular metal ferrule, a stripping tool, a front opening and closing port, a rear opening and closing port, a connecting and fixing end, and a connecting and fixing screw hole; the metal ferrule is composed of two semi - circles, with opening and closing ports at both the front and the rear.

[0012] The closing and fixing end consists of a fixing bracket rotating shaft, a fixing bracket, and the top of the fixing bracket; the fixing bracket is located on a metal handle for controlling opening and closing, and another metal handle for controlling opening and closing is provided with a closing and fixing bracket card slot.

[0013] Furthermore, 2 groups of vertically and evenly arranged stripping tools are provided in each semi - circle of the metal ferrule, with a total of 4 groups. The tools are made of hard metal and are evenly arranged inside the ferrule. The outer blade edges of the blades are used to perform the cutting and peeling operations on the phloem of the stem.

[0014] Furthermore, two connecting and fixing ends are provided at the rear end of the working end, and connecting and fixing screw holes are provided on the connecting and fixing ends. There are two metal handles for controlling opening and closing, which connect to the operating handle.

[0015] Furthermore, the metal handle for controlling opening and closing of the opening and closing control end is fixedly connected to the connecting and fixing end of the working end through screws, and the rear end of the opening and closing control end is connected to the operating handle.

[0016] Furthermore, when the device is closed, the top of the fixing bracket is clamped to the bracket card slot.

[0017] Furthermore, the operating handle end consists of a pressing spring and a plastic hand - held handle; it is made of hard plastic material and is in the shape of an artificial hand - holding operation curve. At about 1 / 3 of the front end of the handle, the two handles are connected by a metal spring.

[0018] Combined with the above - mentioned technical solutions and the solved technical problems, the advantages and positive effects of the technical solution to be protected by the present utility model are as follows:

[0019] First, the present utility model proposes a device for stripping the phloem of tobacco stems. The hand - held mode conforms to the mechanical principle of human hand - holding operation, saving manpower during the operation process; a ring - shaped ferrule is designed at the stripping end; multiple groups of vertical blades are designed on the ferrule, and the ring - stripping width of the blades meets the cutting requirements; multiple groups of tools are evenly distributed inside the ferrule. Open the ferrule, place the operation on the stem of the tobacco plant, close the ferrule, cut the blade edge of the tool inside the ferrule into the phloem of the stem, rotate the handle horizontally, and cut and peel the phloem through multiple groups of blades to complete the operation of a single plant.

[0020] This design, on the one hand, after cutting the blade into the stem, it is easy to peel off the outer epidermis of the stem through the horizontal rotation force. On the other hand, the design of multiple groups of blades has a short operation path, solving the operation mode in the current product that requires rotating around the tobacco stem for one week, saving time and effort and having a good ring - stripping effect.

[0021] The utility model adopts a ring-shaped cutting tool that conforms to the grasping mechanics of human hands as a main body, and has the stem phloem ring-peeling device with the functions of opening and closing, clamping, cutting and the like.

[0022] The utility model can realize phloem ring barking quickly and effectively. The development and application of such machine will greatly reduce the labor intensity and working time in the ring barking process. The tobacco plants are obviously improved in quality and efficiency after ring barking, and it has a good prospect for promotion and application.

[0023] Secondly, the utility model improves the design of the cutter structure at the ring-barking end based on the power and operating principle of hand pliers, optimizing the original hand-held ring-barking for one circle to ring-barking for 1 / 4 circle to achieve phloem cutting and peeling, while widening the cutting surface to prevent blocking failure caused by incomplete ring-barking.

[0024] At the same time, a metal handle is installed to allow operators to walk upright and complete field ring-stripping operations, thereby improving work efficiency and reducing labor intensity.

[0025] Experimental verification has shown that the new ring-barking machine is easy to operate, has a good ring-barking effect, and significantly improves the quality of tobacco leaves after curing.

[0026] The ring-barking device of the utility model can completely realize phloem ring-barking quickly and effectively. The development and application of such machine will greatly reduce the labor intensity and working time in the ring-barking process. The tobacco plants can be obviously improved in quality and efficiency after ring-barking, and it has a good prospect for promotion and application.

[0027] Third, the expected benefits and commercial value of the technical solution of the utility model after transformation are:

[0028] The utility model is based on applicability and practicality. The machine is lightweight and easy to operate. It can meet the working conditions of small working space between tobacco plants in the late growth period and is not suitable for operation with larger models. The operating end is designed according to the working principle of human body. At the same time, the performance of the machine is combined with the physiological structure characteristics of tobacco stems. The tool combination is designed according to the working principle of cutting first and then peeling. The application of multiple sets of tool combinations can reduce the horizontal circling distance between the working end and the control end. The cutting effect and working efficiency are not available in current products. The comparative test results show that the ring-stripping technology can significantly improve the grade of tobacco leaves and the per-acre output value.

[0029] The machine is low-cost, which is in line with the current tobacco industry's development strategy of "reducing labor and costs, improving quality and increasing efficiency". In actual application and promotion, because it can reduce labor intensity and improve the grade of tobacco leaves after curing, tobacco farmers are highly motivated to purchase it on their own, and it has broad prospects for market promotion and application.

[0030] The technical solution of the present utility model fills the domestic and foreign technical gaps in the industry: For the product of the present utility model, during the production and trial use process, the current situation of no applicable machine tool available in this link is solved. Compared with the current products, the product of the present utility model improves the operation efficiency by more than 50%.

[0031] The technical solution of the present utility model solves the technical problems that people have been eager to solve but have never been successful: At present, the stem girdling technology of tobacco plants has been relatively mature in some production areas. Especially in the tobacco-growing areas with relatively low temperature and more rainfall in the later stage of tobacco plants, affected by natural conditions, artificial regulation means must be carried out to promote the yellowing of tobacco plants and reduce the impact of ecological conditions on the yield and quality of tobacco leaves. Many tobacco farmers in tobacco-growing areas adopt the method of girdling the phloem of tobacco stems to block the continuous supply of nutrients from the roots, achieving the effect of consumption being greater than supply, promoting the maturity and senescence of leaves, so as to achieve the technical effect suitable for baking. Affected by the current status of machine tool R & D and production, most tobacco farmers in tobacco-growing areas still use the method of girdling with sickles, and there is a blank in the current production and application of applicable machine tools. This product solves the blank of no applicable agricultural machine available in this link.

[0032] The technical solution of the present utility model overcomes the technical prejudice: Based on the actual production needs and the actual problems existing in the current link products, the present utility model takes applicability as the R & D idea of the product, and takes low production cost and easy promotion as the product design concept, realizing the machine tool replacing the manual operation mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments of the present utility model. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0034] Figure 1 is a tobacco stem girdling and breaking device provided by the prior art;

[0035] Figure 2 is a flue-cured tobacco girdling and breaking device provided by the prior art;

[0036] Figure 3 is a device for promoting the yellowing of black-burst tobacco leaves by damaging the stem provided by the prior art;

[0037] Figure 4 is a schematic diagram of the overall structure of the working machine tool provided by the embodiment of the present utility model;

[0038] Figure 5 is a schematic diagram of the working end structure of the working machine tool provided by the embodiment of the present utility model;

[0039] Figure 6It is a schematic structural diagram of the control end of the working implement provided by the embodiment of the present utility model;

[0040] Figure 7 It is a schematic structural diagram of the fixing structure of the working implement provided by the embodiment of the present utility model;

[0041] Figure 8 It is a schematic structural diagram of the operating lever of the working implement provided by the embodiment of the present utility model;

[0042] In the figure: 1, annular ferrule; 2, stripping tool; 3, front opening and closing port; 4, rear opening and closing port; 5, connection and fixing structure between the control end and the working end; 6, connection and fixing screw hole between the control end and the working end; 7, metal handle for controlling opening and closing (single side); 8, rotation shaft of the metal handle for controlling opening and closing; 9, pressing spring; 10, control handle; 11, fixing bracket for controlling the closed state of the working end; 12, fixing slot of the bracket for controlling closing; 13, bottom rotation shaft of the fixing bracket; 14, fixing metal bracket; 15, spherical structure for the fixing bracket to be stuck into the groove; 16, plastic hand-held handle; 17, metal operating lever; 18, fixed end for connecting the operating metal lever and the control handle. Specific embodiments

[0043] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0044] As Figure 4 shown, the phloem ring stripping device for the tobacco stem provided by the embodiment of the present utility model is composed of 4 parts, namely the working end, the opening and closing control end, the operating end and the fixing control end in the closed state.

[0045] Hold the operation handle end 16 of the ring stripping device, control the opening and closing of the ferrule at the working end by pressing and releasing the spring device at the control end, and by opening the operating lever connected to the control end, the spring device is released, the front opening of the ferrule opens. After the ferrule is put on the tobacco stem, press the handle inward with both hands, the spring at the control end contracts, driving the ferrule to close, and the cutting tool group in the ferrule cuts into the phloem of the tobacco stem, and rotate the operation handle horizontally to complete the cutting and stripping of the stem phloem.

[0046] As Figure 5 shown, the working end is mainly composed of an annular ferrule 1, a stripping tool 2, a front opening and closing port 3 of the ferrule, a rear opening and closing port 4 of the ferrule, a fixing structure 5 for connecting the working end and the control end, and a fixing screw hole 6 for connecting the working end and the control end. Among them, the inner diameter of the annular ferrule 5 in the closed state is 4 cm, and the thickness (ring stripping width) is 2.5 cm. The width of the front opening and closing port is composed of 4 groups of blades arranged evenly, and the thickness of the blade is about 1.5 mm and the material is metal.

[0047] After the annular ferrule 5 is sleeved on the tobacco stem of the tobacco plant, the ferrule 1 can tightly abut against the outer epidermis of the tobacco stem after being closed, the rear end 4 of the opening and closing port is closed, and the annular stripping cutter 2 vertically cuts into the phloem of the stem.

[0048] As Figure 6 shown, the spring device 9 that controls the opening and closing of the working end mainly realizes the opening and closing control of the ferrule at the working end by pressing or releasing the control handle 10. The working principle is as follows: When the control handle 10 is released, the spring device 9 is in a relaxed state, the ferrule is in an open mode, and the working end ferrule is sleeved on the tobacco stem through the front opening and closing port 3. Press the control handles 10 on both sides inward, the spring device 9 that controls the opening and closing contracts inward, and the metal handle 7 that controls the opening and closing rotates through the rotating shaft 8 to close the connected working end ferrule 1, and at the same time, the cutter 2 cuts into the phloem of the tobacco stem.

[0049] The following is the working principle of the phloem annular stripping device for flue-cured tobacco stem after adding device digital labels:

[0050] First of all, the user holds the operation handle end 16 and is ready to start the operation. By pressing or releasing the spring device 9 at the control end, the opening and closing state of the working end ferrule 1 can be accurately controlled. When the operating rod connected to the spring device 9 is released, the spring device 9 enters a relaxed state, causing the front opening 3 of the ferrule to automatically open, facilitating the easy sleeving of the ferrule 1 onto the tobacco stem.

[0051] Secondly, after the ferrule 1 is placed on the tobacco stem, the user presses the handle 16 inward with both hands, and at this time the spring device 9 contracts. This action causes the ferrule 1 connected by the metal handle 7 that controls the opening and closing and the rotating shaft 8 to close tightly, and at the same time, ensures that the ferrule 1 tightly abuts against the outer epidermis of the tobacco stem. In this step, the annular stripping cutter 2 is also accurately cut into the phloem of the tobacco stem to prepare for the next stripping operation.

[0052] Next, after the ferrule 1 is tightly closed and the cutter 2 cuts into the phloem, the user can horizontally rotate the operation handle 16. This rotating action causes the cutter group, that is, the annular stripping cutter 2, to cut in the phloem of the tobacco stem, effectively separating the phloem from other parts of the tobacco stem. The accurate cutting and efficient cutting of the annular stripping cutter 2 are the key to this step, directly affecting the effect and quality of the stripping.

[0053] Finally, the user can completely strip the phloem of the tobacco stem by continuously rotating the operation handle 16 and making appropriate adjustments. During the whole process, the precise design of the annular ferrule 1, the control accuracy of the spring device 9, and the efficient cutting of the annular stripping cutter 2 all play crucial roles, ensuring that the stripping operation is both fast and accurate. After the stripping is completed, the user can easily open the ferrule 1 by operating the control handle 16 and using the spring device 9, and remove it from the tobacco stem, thus successfully completing the entire annular stripping operation.

[0054] Hold the operating handle and rotate the operating rod horizontally, and the sleeve drives the blade to cut and peel off the outer skin of the stem.

[0055] The structural principle of the opening and closing control end is similar to that of a manual scissors control handle. The metal control handle is crossed in the middle and connected by a rotatable metal shaft. The two ends of the control handle are respectively connected to the ring stripping sleeve and the operating handle. The opening and closing of the ring stripping sleeve is completed by the operating handle through the control handle.

[0056] The operating handle end completes the opening and closing of the front control end through the expansion and contraction force of the spring, thereby guiding the opening and closing of the ferrule. When the operating handle is released, the control end opens under the action of the spring expansion force, thereby opening the ferrule. After the ferrule is stuck to the tobacco stem, the operating handle is held tightly, the spring contracts and the ferrule closes and is tightly stuck on the tobacco stem. The handle is held tightly and rotated back and forth horizontally. The gripping force drives the blade to cut the phloem part of the stem and peel off the tobacco stem, thereby completing a ring-barking action.

[0057] like Figure 7 As shown, the fixed control end is mainly used to close the working end for storage and transportation when the machine is not in operation. The fixed control end is composed of a fixed metal bracket 14, one end of which is fixed to the outer side of the metal handle 7 of the opening and closing control end. The bracket rotates through the rotatable shaft 13 at the bottom, and the spherical structure 15 at the top of the fixed bracket is stuck in the fixed groove 12, thereby limiting the free rotation of the control handles on both sides of the control end, so as to achieve the purpose of folding the working end and the control end.

[0058] The utility model has a simple mechanical structure, and its main material is light metal, and the mechanical manufacturing cost is low; the machine model is designed by imitating the principle of human hand dynamics to reduce labor intensity; the operating end is designed with a sleeve-type operating end according to the structural characteristics of the phloem of the stem in the late growth and development of the tobacco plant, and multiple groups of vertical strip-shaped knives are embedded in it, which are clamped to the operating part of the tobacco stem through the sleeve, on the one hand, play a fixing role, and on the other hand, the knives are cut into the phloem of the tobacco stem. Multiple groups of knives can realize multiple entry points around the tobacco plant stem, and then the phloem of the tobacco stem can be peeled off along the entry points through the rotation force. This method not only saves time and labor, but also has a good ring-barking effect. The phloem tissue is peeled off cleanly without residue, which prevents the residual tissue from continuing to transport nutrients and failing to achieve the ring-barking regulation effect. According to the field operation conditions in the late growth and development of tobacco plants, that is, the gaps between tobacco plants are small, and oversized models are easy to damage tobacco plants, the extended pole operation handle end is designed. The machine is small in size, and the gaps between leaves can meet the requirements of the operation space conditions. At the same time, multiple sets of knives greatly shorten the ring-stripping operation path, reduce the disturbance of tobacco plant leaves, and reduce the damage to leaves caused by mechanical field operations, resulting in a decrease in tobacco leaf yield and quality. Operators work while walking, avoiding the mode of squatting in the field due to the short handle, which not only reduces labor intensity but also improves work efficiency.

[0059] Compared with the existing machinery, the advantages are:

[0060] 1. Optimize the product structure: By lengthening the operating handle of the girdling tool, the ferrule-type working end, the embedded multi-group tool structure, and the controllable freely opening and closing control end design, factors such as the field operation space conditions, the convenient conditions for the transportation and storage of the machine, and the labor-saving and time-saving of the operation are integrated into the product design.

[0061] 2. The product performance has been improved:

[0062] Through repeated production verification and improvement, the applicability of the product has been improved and enhanced. From aspects such as the handle design and the performance structure of the girdling working end, improvements have been made in the operation force, time consumption, and operation mode. It is widely applicable, and operators of all ages, women, and young and middle-aged people can easily complete the operation. Combining with the physiological characteristics of the phloem of the tobacco stem in the later stage of tobacco plant growth and development, a multi-group tool design is carried out for the working end. While the operation efficiency is improved, the operation quality is greatly improved, and the verification results of the early field operation are good.

[0063] 2. Good market promotion prospects: The girdling device is a production technical means adopted to meet the needs of some production areas to improve the maturity of tobacco leaves through the girdling technology and avoid the decline in the yield and quality of tobacco leaves caused by low temperature during the maturity period in the production areas. The demand for applicable girdling tools in these production areas is very urgent. The biggest difference between tobacco leaf agricultural production and other crops is that there are many field production links and it is labor-intensive. Especially in the middle and later stages of tobacco plant growth and development, each additional production link will increase the production cost input. In the current situation of labor shortage and difficulty in hiring, reducing the operation cost and improving the production efficiency are the ways for the product to be applied and promoted.

[0064] The device of the present utility model is simple to manufacture, easy to mass-produce, and has a low purchase cost. The purchase and holding costs for growers are low, and it can well meet the production needs of growers.

[0065] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present utility model by those skilled in the art within the technical scope disclosed by the present utility model shall be covered by the protection scope of the present utility model.

Claims

1. A phloem girdling device for the stem of flue-cured tobacco, characterized in that, It includes an opening / closing control end, which consists of a metal handle for controlling opening / closing and a rotating shaft of the metal handle for controlling opening / closing that cross each other; the middle crossing position of the metal handle is connected by the rotating shaft of the metal handle for controlling opening / closing; one end of the opening / closing control end is fixedly connected to the working end by screws, and the other end is fixedly connected to the operating handle end, and the fixing control end is arranged on the opening / closing control end; The working end consists of an annular metal ferrule, a wire stripping cutter, a front-end opening / closing port, a rear-end opening / closing port, a connecting and fixing end, and a connecting and fixing screw hole; the metal ferrule is composed of two semi-circles, and there are opening / closing ports at both the front and the back; The closing and fixing end consists of a rotating shaft of the fixing bracket, a fixing bracket, and the top of the fixing bracket; the fixing bracket is located on a metal handle for controlling opening / closing, and the other metal handle for controlling opening / closing is provided with a closing and fixing bracket slot.

2. The phloem girdling device for flue-cured tobacco stems according to claim 1, wherein Each semi-circle of the metal ferrule is provided with 2 groups of wire stripping cutters. The cutters are made of hard metal, arranged vertically, and the outer side of the blade is the cutting edge.

3. The phloem girdling device for flue-cured tobacco stems according to claim 1, characterized in that, Two connecting and fixing ends are arranged at the rear end of the working end, and connecting and fixing screw holes are arranged on the connecting and fixing ends.

4. The phloem girdling device for flue-cured tobacco stems according to claim 1, characterized in that, The metal handle for controlling opening / closing of the opening / closing control end is fixedly connected to the connecting and fixing end of the working end by screws, and the rear end of the opening / closing control end is connected to the operating handle.

5. The phloem girdling device for flue-cured tobacco stems according to claim 1, characterized in that, When the device is closed, the top of the fixing bracket is stuck to the bracket slot.

6. The phloem girdling device for flue-cured tobacco stems according to claim 1, characterized in that, The operating handle end consists of a compression spring and a plastic hand-held handle; it is made of hard plastic material and is in the shape of an artificial hand-holding operation curve. At about 1 / 3 from the front end of the handle end, the two handles are connected by a metal spring.

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