CN103875463B - A kind of seedling grafting operation multifunctional combined cutter - Google Patents

Abstract

The invention discloses a multifunctional combination cutter for seedling grafting operation, which comprises a cutter bar, a rotary cutter and a flat cutter. A flat cutter is provided, which is characterized in that the rotary cutter has a rotationally symmetrical structure, and the diameter of the rotary cutter relative to the cutter bar is an outstretched structure, and the two sides of the cutter are located on the same plane passing the axis of the cutter bar and opposite to each other. Setting; the blade of the flat cutter has a rotationally symmetrical structure relative to the longitudinal plane of the rotary cutter; the front end of the flat cutter is also provided with a drill cutter. The present invention adopts a double combination structure of structure and parts, so that the tool has multiple functions such as drilling, reaming, correction, grinding, etc., which makes up for the prior art of the sharp bayonet grafting knife, which has a simple structure and a single function, and is difficult to meet rough The rootstock has many branches, and the molding needs of multiple interface forms for multi-directional grafting are insufficient, and the utility model has strong practicability, helps the survival and growth of grafted seedlings, and has popularization value.

Description

A kind of multi-functional combination cutter for seedling grafting operation

technical field

The invention belongs to the technical field of gardening tools, and in particular relates to a multifunctional combination cutter for seedling grafting operation with simple structure and functions of drilling, reaming, turning and engraving.

Background technique

Grafting technology is the basic technical means for plant variety improvement. Graft new varieties, or even young shoots of other varieties, on old trees or rootstocks of other varieties, and use the root system and nutrient system of the rootstock as the growth nutrient base to promote the rapid growth of new branches and achieve rapid breeding. the goal of. It is not only beneficial to shorten the period of variety selection and breeding, but also beneficial to the hybridization of strains, improving the quality of new varieties, improving the characteristics of fruits or flowers, and increasing the output rate. The grafting methods in the prior art are divided into forms such as cleaving, cutting and abutting, and the most commonly used are cleaving and cutting. Commonly used grafting tools are branch saws, fruit tree shears and grafting knives. The functions of branch saw and fruit tree shear are relatively simple, mainly used for sawing of rootstock and cutting of scion; the cutting edge of grafting knife is a pointed single-sided blade, mainly used for splitting of rootstock; The whole method depends on the cutting of the grafted branches and the peeling of the rootstock. These tools still can basically satisfy operation requirement for the cleaving joint of the truncated type rootstock end of conventional fruit tree, cutting joint. And the basic requirement of bonsai modeling is small and exquisite, compact, and for the grafting cultivation of the thick rootstock modeling bonsai of short pile, simply adopting conventional end cleaving and cutting mode to carry out grafting is difficult to achieve the purpose, therefore, prior art grafting tool is also difficult to achieve. Difficult to meet the needs of special grafting interface modeling. In order to meet the compact shape of bonsai, grafting often needs to be carried out from the side of the rootstock instead of simply using the grafting method, which is not conducive to the growth and shape of the subsequent scion. While side grafting of thick rootstock or multi-scion grafting, it is necessary to keep the rootstock grafting interface small and not expanded, so as to facilitate the healing of the wound and the survival of the scion. When dealing with rootstocks and grafting joints, drilling, trimming and grinding are required, which is difficult to do with common grafting tools. For this reason, it is an effective way to solve this problem to research and develop a kind of simple in structure, can satisfy the multi-functional combination cutter of various operations in the grafting operation.

Contents of the invention

The object of the present invention is to provide a seedling grafting operation with simple structure, which integrates the functions of drilling, correction and grinding, and is especially suitable for multifunctional combined cutters for bonsai grafting and modeling.

The object of the present invention is achieved in this way, comprising a knife bar, a rotary cutter and a flat cutter, the rear section of the knife bar is provided with a force-applying handle, the front section of the knife bar is provided with a rotary cutter, and the front end of the rotary cutter is provided with a flat cutter. It is characterized in that the rotary cutter has a rotationally symmetrical structure, and the rotary cutter is an outstretched structure relative to the diameter of the cutter bar, and the knives on both sides are located on the same plane passing the axis of the cutter bar and are oppositely arranged; the flat The blade of the cutter has a rotationally symmetrical structure relative to the longitudinal plane of the rotary cutter; the front end of the flat cutter is also provided with a drill cutter.

The present invention adopts a double-combined structure of structure and parts, so that the cutter has multiple functions such as drilling, reaming, correction, and grinding, and provides a kind of cutting tool for fruit tree and seedling grafting, especially for the cultivation of bonsai with short piles or thick rootstocks. Versatile combination tool. The utility model makes up for the disadvantages of the prior art that the sharp bayonet-type grafting knife has simple structure and single function, and is difficult to meet the forming needs of thick stock with multiple branches and multi-directional grafting with various interface forms. The present invention is simple in structure, integrates various forms of knives, not only small in size, easy to carry, and can be used in combination freely, and can be applied to different application occasions such as different grafting and even modeling, and is a kind of grafting knife that can make up for the single function of the prior art. , to adapt to the problem of narrow surface, more conducive to the survival and growth of grafted seedlings, and has good popularization and application value.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is a half-sectional schematic diagram of the overall structure after the drilling cutter is installed in the present invention;

Fig. 4 is the left view of Fig. 3;

Fig. 5 is the structural representation of the embodiment of the present invention adopting gradually widening type rotary cutter;

Fig. 6 is a schematic diagram of the overall structure of the combined force applying device of the present invention;

In the figure: 1-knife bar, 11-force handle, 2-rotary cutter, 21-inner edge of the rotary knife, 22-outer edge of the rotary knife, 23-end edge of the rotary knife, 24-back edge of the rotary knife, 3-flat Cutter, 31-upper arc section, 32-lower arc section, 33-coupling hole, 4-drilling cutter, 41-self-tapping cone, 42-conical cutter, 43-connecting rod.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and examples, but the present invention is not limited in any way. Any changes or improvements made based on the teaching of the present invention belong to the protection scope of the present invention.

As shown in Figures 1 to 4, the present invention includes a cutter bar 1, a rotary cutter 2 and a flat cutter 3, the rear section of the cutter bar 1 is provided with a force application handle 11, and the front section of the cutter bar 1 is provided with a rotary cutter 2, and the rotary cutter The front end of the knife 2 is equipped with a flat cutting knife 3, which is characterized in that the rotary cutting knife 2 has a rotationally symmetrical structure, and the diameter of the rotary cutting knife 2 relative to the knife bar 1 is an outstretched structure, and the knives on both sides are located past the knife bar 1 The same plane of the axis and oppositely arranged; the blade of the flat cutter 3 is a rotationally symmetrical structure with respect to the longitudinal plane of the rotary cutter 2; the front end of the flat cutter 3 is also provided with a drill cutter 4.

The center of the flat cutting knife 3, that is, the axis of the knife rod 1, is provided with a connecting hole 33, which is plugged with the connecting rod 43 of the drilling and cutting knife 4; The self-tapping cone 41 is followed by the conical cutter 42, the maximum diameter of the conical cutter 42≤the maximum diameter of the rotary cutter.

The connecting hole 33 provided in the center of the flat cutter 3 is square hole-shaped, and is plugged and matched with the square column-shaped connecting rod 43 of the drill cutter 4 through mutual self-resetting snap-bead structures.

The flat cutting knife 3 is a rotationally symmetrical structure with respect to the longitudinal axis plane of the knife bar 1, and each side is in a downwardly inclined circular arc from the end edge 23 of the rotary knife to the inner edge of the rotary knife on the opposite side, and the upper The uppermost edge of the arc section 31 is 1-5mm lower than the cutting edge of the rotary knife end.

The outer edge taper angle of the side orthographic projection of the drill cutter 4 is 60° to 150°.

The conical cutter 42 of the drill cutter 4 is a double-helix structure with wide-headed teeth, the width ratio of the tooth peak to the tooth valley is 0.5~1.0:1.0~0.5, and its width gradually narrows from the top of the cone to the bottom of the cone. formula structure.

A clockwise transitional arc is formed between the blade back of the front end of the rotary cutter 2 and the cutter bar 1; the front section of the rotary cutter 2 and the lower arc section 32 of the flat cutter 3 correspond to the inner edge of the rotary cutter. 21. The outer edge 22 of the rotary cutter 2 is arranged on the outside, and the end edge 23 of the rotary cutter is arranged at the front end thereof, and the end edge 23 of the rotary cutter is perpendicular to the inner edge and the outer edge of the rotary cutter 2 .

The width of the rotary cutter 2 is 1/3~1/2 of the diameter of the cutter bar 1.

Figure 5 shows an embodiment using a gradually widening rotary cutter, the first 1/3~1/2 section of the rotary cutter 2 is of equal width, and the rear 1/2~2/3 section is gradually widening structure.

The widening angle of the rear 1/2~2/3 section of the rotary cutter 2 is 0~5°.

Fig. 6 shows the state of the present invention combining the force applying device, the force applying device can be electric or manual, which does not affect the realization of the object of the present invention.

Working principle and working process of the present invention:

The present invention adopts a double-combined structure of structure and parts, so that the cutter has multiple functions such as drilling, reaming, correction, and grinding, and provides a kind of cutting tool for fruit tree and seedling grafting, especially for the cultivation of bonsai with short piles or thick rootstocks. Versatile combination tool. The utility model makes up for the disadvantages of the prior art that the sharp bayonet-type grafting knife has simple structure and single function, and is difficult to meet the forming needs of thick stock with multiple branches and multi-directional grafting with various interface forms.

When in use, the present invention is connected with a manual force application or an electric force application handle, and can be disassembled and assembled according to actual needs, or rotary cutters of different specifications can be selected, or combined with a drill cutter. If drilling is required, a drill cutter can be used in combination with a rotary cutter. If you want to scrape the hole wall or skin, you can remove the drill cutter and use the outer edge of the rotary cutter to complete it. If you want to engrave a local hole or cone, you can use a flat cutter and at the same time use the front end of the rotary cutter to achieve it. For deep drilling and reaming, the drill cutter can be used in combination with the rotary cutter with gradually widening structure.

Claims (10)

1. a seedling grafting operation multifunctional combined cutter, comprise knife bar (1), peeling knife (2) and flat cutter (3), described knife bar (1) back segment arranges effort handle (11), knife bar (1) leading portion arranges peeling knife (2), peeling knife (2) front end arranges flat cutter (3), it is characterized in that described peeling knife (2) is in rotational symmetry structure, and peeling knife (2) is abduction formula structure relative to the diameter of knife bar (1), both sides cutter spacing in cross knife bar (1) axis same plane on and be oppositely arranged; The blade of described flat cutter (3) is rotational symmetry structure relative to the plane of peeling knife (2) longitudinal direction; Described flat cutter (3) front end is also provided with drilling cutter (4).

2. seedling grafting operation multifunctional combined cutter according to claim 1, it is characterized in that the center of described flat cutter (3), namely the axle center of knife bar (1) arranges connection holes (33), coordinates with coupling bar (43) grafting of drilling cutter (4); Described drilling cutter (4) is overall tapered, and its front end is self tapping cone (41), thereafter for revolving cone cutter (42), and the described maximum gauge revolving the maximum gauge≤peeling knife of cone cutter (42).

3. seedling grafting operation multifunctional combined cutter according to claim 1 and 2, it is characterized in that the connection holes (33) of the center setting of described flat cutter (3) is in square hole-shaped, is coordinated by mutual Self-resetting card bead structure grafting with the square column type coupling bar (43) of drilling cutter (4).

4. seedling grafting operation multifunctional combined cutter according to claim 1 and 2, it is characterized in that described flat cutter (3) is rotational symmetry structure relative to the longitudinal axis plane of knife bar (1), and each side revolves cutter inner edge in the circular arc had a down dip from revolving cutter end sword (23) to offside, and upper segmental arc (31) goes up edge most lower than revolving cutter end cutting edge 1 ~ 5mm.

5. seedling grafting operation multifunctional combined cutter according to claim 1 and 2, is characterized in that the outer rim cone angle of the side orthographic projection of described drilling cutter (4) is 60 ~ 150 °.

6. seedling grafting operation multifunctional combined cutter according to claim 1 and 2, it is characterized in that described drilling cutter (4) revolve cone cutter (42) be wide head tooth double-spiral structure formula, tooth peak is 0.5 ~ 1.0:1.0 ~ 0.5 with tooth paddy width ratio, and its width is descend as gradual change constriction formula structure to cone on cone.

7. seedling grafting operation multifunctional combined cutter according to claim 1, rectifies before it is characterized in that described peeling knife (2) between the knife back of projection and knife bar (1) and forms clockwise transition circle arc; Under the leading portion of peeling knife (2) and flat cutter (3), segmental arc (32) correspondence position arranges and revolves cutter inner edge (21), described peeling knife (2) arranged outside revolves cutter outside (22), its front end is arranged revolves cutter end sword (23), and the described inner edge revolving cutter end sword (23) and peeling knife (2), outside are perpendicular.

8. the seedling grafting operation multifunctional combined cutter according to claim 1 or 7, is characterized in that the width of described peeling knife (2) is 1/3 ~ 1/2 of knife bar (1) diameter.

9. the seedling grafting operation multifunctional combined cutter according to claim 1 or 7, to is characterized in that before described peeling knife (2) that 1/3 ~ 1/2 section is wide structure, and latter 1/2 ~ 2/3 section is gradually wide formula structure.

10. seedling grafting operation multifunctional combined cutter according to claim 9, it is characterized in that described peeling knife (2) afterwards the broadening angle of 1/2 ~ 2/3 section be 0 ~ 5 °.