Rubber seedling budding longitudinal rotary bud cutting machine

Abstract

The utility model belongs to the field of seedling raising, rubber seedling budding longitudinal rotary type cutting bud machine is disclosed, including frame, be equipped with tree stem conveying device on the frame, install tree stem clamping device on tree stem conveying device, tree stem conveying device is used for horizontal clamping tree stem, and the axis of the clamping tree stem is arranged along the direction of conveyance, correspond to the upper portion of tail end cutting station place is equipped with tail end radial cutting device, the cutting surface of tail end radial cutting device is vertically arranged and is perpendicular to the axis of the clamping tree stem, correspond to the upper portion of rotary cutting station place is equipped with longitudinal rotary cutting device, the rotary axis of longitudinal rotary cutting device is perpendicular to the axis of the clamping tree stem, is equipped with bud cutting collection device in the rotary cutting station place below the frame, the utility model has the advantages of convenient operation, high cutting bud efficiency, can reduce artificial dependence, cutting mode is reasonable, especially can effectively avoid the damage to bud point and the tail end tear of bud piece with the movement of cutting tool.

Description

Technical Field

[0001] This utility model relates to the field of seedling cultivation, and in particular to a longitudinal rotary bud-cutting machine for rubber seedling grafting. Background Technology

[0002] To cultivate superior rubber tree varieties, increase latex production, and enhance plant disease resistance, budding propagation technology has been widely adopted. Budding is a form of asexual reproduction, specifically involving grafting buds from superior mother trees onto rootstocks to ultimately cultivate new plants with superior traits. This technique can fully preserve the excellent genetic characteristics of rubber trees, shorten the plant growth cycle, and improve seedling survival rates, making it one of the core elements of modern rubber cultivation.

[0003] Currently, budding in rubber seedling cultivation is still primarily done manually. Bud cutting is mostly done manually using a budding knife or other tools, with common methods including pressing, pushing, cutting, pulling, and tearing. While these traditional methods have been used for a long time, they have many limitations. The quality of manually cutting buds is highly dependent on the operator's skill level; the size, angle, and depth of the cuts are difficult to maintain completely uniformly, easily leading to bud damage or irregular shapes, thus affecting the grafting success rate. Furthermore, manual operation is not only inefficient but also labor-intensive, making it difficult to meet the needs of large-scale seedling cultivation. Especially in modern agricultural production, manual budding is no longer suitable for the rubber industry's development requirements for efficient and precise grafting.

[0004] Currently, research on mechanized grafting tools for rubber stem bud extraction is scarce both domestically and internationally. This step still primarily relies on manual operation using handheld tools. The specific procedure is as follows: First, a long rubber tree stem is cut into multiple segments of uniform length, each segment retaining at least one bud; segments without buds are discarded. Next, the bark of the stem segments is manually cut with a knife, avoiding the buds. Finally, the bark with buds is peeled off by hand, completing the stem bud extraction. After extraction, subsequent recipient cutting and sealing grafting operations are performed. The manual extraction of rubber stem buds presents numerous problems: low efficiency, long processing time, high labor costs, and the sharpness of the tools poses safety hazards during handling and operation. Most critically, the bark must be manually peeled off after cutting. Due to the strong adhesion between the bark and the stem, the force applied during tearing is significant, easily pulling and damaging the buds. Furthermore, the manually cut bark is uneven in shape and thickness, significantly impacting the grafting survival rate. This has become a major challenge in current rubber tree stem bud grafting technology.

[0005] Therefore, mechanizing the extraction of rubber tree buds is of paramount importance. Mechanized bud extraction can significantly improve the efficiency of rubber grafting, reduce labor costs, greatly increase the survival rate of grafts, and significantly enhance the safety of bud cutters. The key to mechanizing rubber bud extraction lies in avoiding problems such as cortical separation, stem point damage, and tearing of the bud tip caused by the movement of the cutting blade during the cutting process. Summary of the Invention

[0006] The technical problem to be solved by this utility model is to provide a longitudinal rotary bud cutter for rubber seedling grafting that is easy to operate, has high bud cutting efficiency, reduces manual labor dependence, has a reasonable cutting method, and can effectively avoid damage to the bud point and tearing of the bud tip caused by the movement of the cutter.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is: a longitudinal rotary bud-cutting machine for rubber seedling grafting, including a frame, on which a stem conveying device is provided. The stem conveying device is provided with an insertion station, a tail-end cutting station and a rotary cutting station in sequence along the conveying direction. A stem clamping device is installed on the stem conveying device. The stem conveying device is used to horizontally clamp the stem, and the axis of the clamped stem is set along the conveying direction. A tail-end radial cutting device is provided above the tail-end cutting station. The cutting surface of the tail-end radial cutting device is set vertically and perpendicular to the axis of the clamped stem. A longitudinal rotary cutting device is provided above the rotary cutting station. The rotation axis of the longitudinal rotary cutting device is perpendicular to the axis of the clamped stem. A bud-cutting collection device is provided below the frame at the rotary cutting station.

[0008] As a preferred technical solution, the tail-end radial cutting device includes a radial cutting blade holder fixed on the frame, a radial cutting blade support vertically slidably mounted on the radial cutting blade holder, and a radial cutting power device for driving the radial cutting blade support to reciprocate up and down. The bottom end of the radial cutting blade support is provided with a radial cutting blade.

[0009] As a preferred technical solution, the longitudinal rotary cutting device includes a rotatably mounted longitudinal rotary cutter and a rotary cutter power device for driving the longitudinal rotary cutter to swing.

[0010] As a preferred technical solution, the tree stem clamping device includes a clamping support frame installed on the tree stem conveying device. A left clamping arm and a right clamping arm are slidably provided on the clamping support frame, and the left clamping arm and the right clamping arm are adjusted for opening and closing by a screw.

[0011] As a preferred technical solution, the bud cutting and collection device includes a bud collection box and a guide trough, wherein the guide trough is located inside the bud collection box and is arranged in an inclined manner.

[0012] As a preferred technical solution, an automatic control system is also included, wherein the trunk conveying device, trunk clamping device, tail radial cutting device, and longitudinal rotary cutting device are all connected to the automatic control system.

[0013] Due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. This application adds a tail-end radial cutting device in front of the longitudinal rotary cutting device, that is, radial cutting can be performed on the surface of the tree stem before longitudinal rotary cutting. By pre-cutting the tail end of the bud, the tail end of the bud can be effectively prevented from tearing during the subsequent rotary cutting, thus ensuring cutting accuracy and bud integrity.

[0014] 2. In this application, the stem clamping device is used to clamp and fix the stem, the stem conveying device is used to transport the stem, and the tail radial cutting device and the longitudinal rotary cutting device are used to cooperate to perform radial and rotary cutting on the surface of the stem, cutting the next bud in one cut; through the integrated design of each device, the automated and precise bud cutting of rubber seedling stems is realized, effectively solving the problems of low efficiency, high labor intensity and uneven cutting in traditional manual bud cutting, and greatly improving the overall work efficiency.

[0015] 3. This application uses a semi-automatic method for bud cutting, which eliminates the need for manual adjustment of the cutting position and manual operation of the equipment as required by existing technologies. In this device, the tree stem is clamped once, and the needs for automatic cutting and positioning of the tree stem can be met in one go. This semi-automatic cutting method will inevitably cut off the bud, and the bud will automatically fall to the bud cutting collection device under the action of inertia and gravity. Then, the required seedling bud can be selected. This method can greatly improve the efficiency of bud cutting production. Attached Figure Description

[0016] The accompanying drawings are intended only to illustrate and explain the present invention and do not limit the scope of the present invention.

[0017] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model; Figure 2 This is a side view of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the radial cutting blade and the longitudinal rotary cutting blade according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the cutting process according to an embodiment of the present invention; In the diagram: 1-Frame; 2-Tree stem conveying device; 3-Tree stem clamping device; 4-Tail-end radial cutting device; 41-Radial cutting blade holder; 42-Radial cutting blade support; 43-Radial cutting blade; 5-Longitudinal rotary cutting device; 51-Longitudinal rotary cutter; 52-Rotary cutter mounting bracket; 6-Bud cutting collection device; 61-Bud collection box; 62-Guide trough; 7-Cutting port. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0019] like Figure 1 and Figure 2 As shown, a longitudinal rotary bud-cutting machine for rubber seedling grafting includes a frame 1, which serves as the mounting carrier. The frame 1 is equipped with a stem conveying device 2, a stem clamping device 3, a tail-end radial cutting device 4, a longitudinal rotary cutting device 5, and a bud-cutting collection device 6. The functional devices are arranged in sequence according to the operation process of "stem conveying - positioning clamping - precise cutting - bud collection" to ensure smooth connection of each link.

[0020] The tree stem conveying device 2 is provided with an insertion station, a tail-end cutting station, and a rotary cutting station in sequence along the conveying direction. The tree stem clamping device 3 is installed on the tree stem conveying device 2. The tree stem conveying device 2 drives the tree stem clamping device 3 to move back and forth along the conveying direction, providing a path for the flow of tree stems. The tree stem conveying device 2 can be driven by a conveyor belt or by a combination of slide rails, sliders, and lead screws. These are common technical means in the field and will not be described in detail here.

[0021] The tree stem conveying device 2 is used to horizontally clamp the tree stem, with the axis of the clamped tree stem arranged along the conveying direction. The tree stem clamping device 3 includes a clamping support frame installed on the tree stem conveying device 2. A left clamping arm and a right clamping arm are slidably provided on the clamping support frame. The left clamping arm and the right clamping arm are limited by a slide rail and a slider, allowing only sliding and not rotation. The opening and closing of the left clamping arm and the right clamping arm are adjusted by a screw. The screw is rotatably installed on the clamping support frame, and the left clamping arm and the right clamping arm are respectively threaded to the screw. The threads of the left clamping arm, the right clamping arm and the screw rotate in opposite directions, that is, when the screw rotates, it drives the left clamping arm and the right clamping arm to clamp inward or release outward simultaneously. The inner surface of the left clamping arm and the right clamping arm is provided with an arc-shaped groove that matches the outer surface of the tree stem, which can stably clamp the tree stem.

[0022] Above the tail-end cutting station is a radial cutting device 4, the cutting surface of which is vertically arranged and perpendicular to the axis of the clamped stem. Above the rotary cutting station is a longitudinal rotary cutting device 5, the axis of rotation of which is perpendicular to the axis of the clamped stem. Below the frame 1 at the rotary cutting station is a bud collection device 6. The longitudinal rotary cutting device 5 is located in front of the radial cutting device 4. That is, when the stem is conveyed forward, the radial cutting device 4 first performs radial cutting, and then the longitudinal rotary cutting device 5 performs rotary cutting. The buds cut off by the rotary cutting fall directly into the bud collection device 6 below.

[0023] See Figure 2 and Figure 3 The radial cutting device 4 includes a radial cutting blade holder 41 fixed to the frame 1. A radial cutting blade support 42 is vertically slidably mounted on the radial cutting blade holder 41, and a radial cutting power device drives the radial cutting blade support 42 to reciprocate up and down. The radial cutting blade holder 41 is provided with a vertical slide rail. The end of the radial cutting blade support 42 is provided with a slider that slides along the vertical slide rail. The bottom end of the radial cutting blade support 42 is provided with a radial cutting blade 43. The radial cutting power device can be driven by a conveyor belt or a screw, or it can be driven by a swing arm or rocker arm. This vertical sliding driving method is a common technical means in the field and will not be described in detail here.

[0024] See Figure 2 and Figure 3The longitudinal rotary cutting device 5 includes a rotatably mounted longitudinal rotary cutter 51 and a rotary cutter power device that drives the longitudinal rotary cutter 51 to swing. In this embodiment, rotary cutter mounting brackets 52 are provided on the left and right sides of the longitudinal rotary cutter 51. The rotary cutting mounting brackets can be mounted on the frame 1 via a rotating shaft, and then the rotating shaft is directly driven to rotate by the rotary cutter power device, thereby realizing the rotary cutting of the longitudinal rotary cutter 51. Of course, the driving method of the longitudinal rotary cutter 51 is not limited to this, and it is a common technical means in the art, which will not be described in detail here.

[0025] Of course, the radial cutting power unit and the rotary cutting power unit can share the same power source and be driven by different structures.

[0026] The bud cutting collection device 6 includes a bud collection box 61 and a guide trough 62. The guide trough 62 is located inside the bud collection box 61 and is arranged at an angle. The guide trough 62 can guide the falling buds to fall into the bud collection box 61 with less force, thereby reducing damage to the buds.

[0027] The device also includes an automatic control system, and the trunk conveying device 2, trunk clamping device 3, tail radial cutting device 4, and longitudinal rotary cutting device 5 are all connected to the automatic control system.

[0028] The working principle of this embodiment is as follows: S1. Start the automatic operating system and check whether the stem conveying device 2, stem clamping device 3, longitudinal rotary cutting device 5, tail radial cutting device 4, and bud cutting and collecting device 6 are normal. If each device is functioning normally, proceed to the next step; otherwise, repair immediately. S2. Select a rubber tree stem of appropriate length and clamp and fix it at the insertion position using the stem clamping device 3. Before clamping and fixing, ensure that the bud point is facing upward. S3. The stem conveying device 2 operates, and the stem clamping device 3 is conveyed to the tail end cutting station and then stopped. At this time, the bud point is located in front of the tail end cutting station. S4. The radial cutting device 4 at the tail end is activated. The radial cutting blade 43 makes a radial cut on the surface of the tree stem downwards, with a cutting depth of approximately 1 / 3 of the tree stem diameter. See the image below for the state after cutting. Figure 4 (a) At this point, a cut 7 is left on the surface of the tree stem. After the cut is completed, the radial cutting blade 43 retracts upward. S5. The stem conveying device 2 operates, and the stem clamping device 3 is conveyed to the rotary cutting station and then stopped. At this time, the bud point is located at the rotary cutting station and the cutting opening 7 is located behind the rotary cutting station. S6. The longitudinal rotary cutting device 5 is activated, and the longitudinal rotary cutter 51 moves from front to back to cut the tree trunk longitudinally. The exit position of the longitudinal rotary cutter 51 is the same as the position of the cutting kerf 7. See the image below for the state after cutting. Figure 4 (b) The buds on the surface of the tree stem are cut off, and the cut seedling buds fall automatically into the bud cutting collection device 6 under the action of inertia and gravity, and the cutting is completed in one go; S7. After the cutting is completed, the stem conveying device 2 will transport the stem clamping device 3 to the insertion station, where the staff will take out the stem and wait for the next cycle.

[0029] Steps S4 and S5 can also be performed simultaneously. Since the radial cutting speed is faster, the radial cutting retraction is faster and does not affect the rotary cutting. The two will not interfere with each other, as long as the exit position of the rotary cutting is consistent with the cutting opening 7 of the radial cutting.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A longitudinal rotary bud-cutting machine for rubber seedling grafting, comprising a frame, characterized in that: The frame is equipped with a stem conveying device, which has an insertion station, a tail-end cutting station, and a rotary cutting station arranged sequentially along the conveying direction. A stem clamping device is installed on the stem conveying device, which is used to horizontally clamp the stem, and the axis of the clamped stem is set along the conveying direction. Above the tail-end cutting station, there is a tail-end radial cutting device, the cutting surface of which is vertically set and perpendicular to the axis of the clamped stem. Above the rotary cutting station, there is a longitudinal rotary cutting device, the axis of rotation of which is perpendicular to the axis of the clamped stem. Below the frame at the rotary cutting station, there is a bud collection device.

2. The longitudinal rotary bud cutter for rubber seedling grafting as described in claim 1, characterized in that: The tail-end radial cutting device includes a radial cutting blade holder fixed on the frame, a radial cutting blade support vertically slidably mounted on the radial cutting blade holder, and a radial cutting power device that drives the radial cutting blade support to reciprocate up and down. The bottom end of the radial cutting blade support is provided with a radial cutting blade.

3. The longitudinal rotary bud-cutting machine for rubber seedling grafting as described in claim 1, characterized in that: The longitudinal rotary cutting device includes a rotatably mounted longitudinal rotary cutter and a rotary cutter power unit that drives the longitudinal rotary cutter to swing.

4. The longitudinal rotary bud cutter for rubber seedling grafting as described in claim 1, characterized in that: The tree stem clamping device includes a clamping support frame installed on the tree stem conveying device. A left clamping arm and a right clamping arm are slidably provided on the clamping support frame. The left clamping arm and the right clamping arm are adjusted for opening and closing by a screw.

5. The longitudinal rotary bud-cutting machine for rubber seedling grafting as described in claim 1, characterized in that: The bud cutting and collection device includes a bud collection box and a guide trough, wherein the guide trough is located inside the bud collection box and is arranged at an angle.

6. The longitudinal rotary bud cutter for rubber seedling grafting as described in claim 1, characterized in that: It also includes an automatic control system, and the trunk conveying device, trunk clamping device, tail radial cutting device, and longitudinal rotary cutting device are all connected to the automatic control system.

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