A cutter and a branch binding machine

Abstract

The utility model relates to a cutting knife and branch binding machine, and the branch binding machine includes clamping device, arcuate frame, handle, frame, needle box and bandage box, wherein the bandage can be pulled out from the front end part of frame, and the cutting knife table is fixed at the front end of frame, the arcuate frame can rotate relative to the frame, the clamping device is installed at the front end part of arcuate frame, can clamp the bandage from the front end part of frame, the cutting knife table is arranged at the front end of frame, and the impact block, cutting knife and needle pressing head are connected on the cutting knife table, the top of cutting knife is provided with a plurality of sawteeth, the tooth height of sawtooth is 1.5 2.5mm, the tooth width of sawtooth is 1.5 2.5mm, and the inclined chamfer is arranged at the top of sawtooth, thereby guaranteeing that the sawtooth has excellent performance in sharpness and wear resistance.

Description

Technical Field

[0001] This utility model relates to the field of agricultural production binding tools, and in particular to a branch binding machine. Background Technology

[0002] When planting crops such as tomatoes, grapes, and kiwis, we usually need to fix the vines or branches of the plants to bamboo poles or wires to guide their growth or assist in fruit setting, thereby improving crop yield and quality. In order to improve the efficiency of tying branches, compared with the traditional method of using ropes to tie branches, operators now usually use branch tying machines (also known as binding machines) to tie and fix the plants.

[0003] For example, CN107517773A discloses a branch tying machine, including a holding member, a holding member force application unit, a locking member, and a locking member force application unit. The holding member force application unit is a compression spring that applies a counterclockwise rotational force to the holding member. The locking member engages with the holding member to keep the holding member in a standby position. The locking member force application unit is a compression spring that applies a clockwise rotational force to the locking member.

[0004] However, the existing branch tying machine has the following shortcomings: the cutter set on the frame is easy to wear, and after the cutter wears out, it is not sharp and is prone to "jamming" when cutting the strip, resulting in failure to tie the branch. Utility Model Content

[0005] This invention provides a branch tying machine that solves the technical problem of easy wear of the cutting blade in the prior art.

[0006] The present invention provides the following solution to the above-mentioned technical problems: a cutting blade, which is installed on a branch tying machine. The top of the cutting blade has multiple serrations, the tooth height of which is 1.5-2.5mm and the tooth width of which is 1.5-2.5mm. The total width of the cutting blade is 15.8-16.2mm, and chamfers are provided on both sides of each serration.

[0007] Preferably, the top of the cutter has 7 serrations with a tooth width of 2.5 mm, and the total width of the cutter is 18 mm; a U-shaped opening and at least one first positioning hole are provided at the bottom of the cutter.

[0008] This utility model also provides a branch tying machine, including the aforementioned cutter. The branch tying machine includes a clamping device, an arched frame, a handle, a frame, a needle box, and a strapping box. The strapping can be pulled out from the front end of the frame, and the cutter head is fixed to the front end of the frame. The arched frame is rotatable relative to the frame. The clamping device is installed at the front end of the arched frame and can clamp the strapping from the front end of the frame. The cutter head is located at the front end of the frame, and an impact block, a cutter, and a pressure needle are connected to the cutter head. The cutter head has a screw hole corresponding to the U-shaped opening, and a first positioning protrusion corresponding to the first positioning hole is also provided on the cutter head.

[0009] The beneficial effects of this utility model are:

[0010] 1) This utility model sets the number of saw teeth to 7-10, the tooth height h of the saw teeth to 1.5-2.5mm, and the tooth width w of the saw teeth to 1.5-2.5mm; at the same time, an inclined chamfer C is provided at the top of the saw teeth to improve the sharpness of the saw teeth; thereby ensuring that the saw teeth have excellent performance in both sharpness and wear resistance.

[0011] 2) By controlling the total width W of the cutter 总 Setting it to 15.8-16.2mm can completely cover a strap width of 10-13mm, and can effectively cut the strap even if the strap position shifts when gripping it.

[0012] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0014] Figure 1 This is a structural diagram of a branch tying machine.

[0015] Figure 2 This is a schematic diagram of the exploded structure of a branch tying machine.

[0016] Figure 3 This is a schematic diagram of the assembly structure of the cutting table.

[0017] Figure 4 This is a schematic diagram of another assembly structure of the cutting table.

[0018] Figure 5 This is a schematic diagram of the cutting table.

[0019] Figure 6 This is the main structural view of the cutter.

[0020] Figure 7 This is the front view of the cutter.

[0021] Figure 8 This is a cross-sectional view of the tying machine after it has gripped the strap.

[0022] Figure 9 This is a cross-sectional view of the binding machine in the process of binding and cutting the tape.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Clamping device; 11. Machine housing; 13. Hook; 14. Clamping plate; 15. Forming anvil;

[0025] 2. Bow-shaped frame;

[0026] 4. Frame; 41. Cutting table; 42. Impact block; 43. Cutting blade; 431. U-shaped opening; 432. First positioning hole; 433. Serrated edge; 44. Pressing needle head;

[0027] 5. Needle box;

[0028] 6. Strap box. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-9 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0030] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] like Figure 1-2 As shown, in one embodiment of this utility model, a branch tying machine includes a clamping device 1, an arched frame 2, a handle 3, a frame 4, a needle box 5, and a strapping box 6. The frame 4 is straight with a U-shaped cross-section. The arched frame 2 is arc-shaped, with its rear end hinged to the frame 4. A handle 3 is provided between the arched frame 2 and the frame 4, and the handle 3 is hinged to the arched frame 2 in an X-shape on the frame 4. A clamping device 1 is provided at the front end of the arched frame 2. The clamping device 1 is installed at the front end of the arched frame 2 and includes a box, a hook 13, a strapping plate 14, and a forming anvil 15. The box has a cavity structure, and the hook 13, the strapping plate 14, and the forming anvil 15 are all located inside the cavity of the box. The forming anvil 15 is located at the lower end of the box, and the strapping plate 14 is located between the hook 13 and the forming anvil 15.

[0033] like Figure 3-7 As shown, the cutting table 41 is located at the front end of the frame 4. The cutting table 41 is connected to an impact block 42, a cutter 43 and a pressing needle head 44. The impact block 42 is rotatably connected to the cutting table 41, and the cutter 43 and the pressing needle head 44 are both fixedly connected to the cutting table 41.

[0034] like Figure 6-7 As shown, the cutter 43 has a T-shaped plate structure. The bottom of the cutter 43 has a U-shaped opening 431 and a first positioning hole 432, and the top of the cutter 43 has multiple serrations 433. In actual use, the serrations 433 are prone to wear, resulting in incomplete cutting and failure to bind branches. Since the total width of the top of the cutter 43 is fixed, the more serrations 433 there are, the steeper the angle of inclination of the serrations, making it easier to pierce the cutting strip. The smaller the tooth width w, the less rigid each serration becomes, and the more easily the serrations wear. The fewer the number of serrations 433, the flatter the angle of inclination of the serrations, making it easier to pierce the cutting strip. The larger the tooth width w, the greater the rigidity of each serration, and the less prone the serrations to wear and deformation. To ensure that the serrations 433 have excellent performance in both sharpness and wear resistance, this invention sets the number of serrations 433 to 7-10, the tooth height h of the serrations 433 to be 1.5-2.5mm, and the tooth width w of the serrations 433 to be 1.5-2.5mm. The total width W of the cutter 43 shown is... 总The diameter is 15.8-16.2mm, the total height H of the cutter 43 is 1.5-4.5mm, and chamfers C are provided on both sides of each tooth 433 to improve the sharpness of the tooth 433;

[0035] Because the strap will randomly shift left and right when gripping, by setting the total width W of the cutter 43 to 15.8-16.2mm, it can completely cover the 10-13mm width of the strap, and can effectively cut the strap even if the position of the strap shifts when gripping.

[0036] Preferably, the top of the cutter has 7 serrations, each 2.5 mm wide, and the total width of the cutter is 18 mm.

[0037] To facilitate the installation of the cutter 43, a screw hole 4131 corresponding to the U-shaped opening 431 is provided on the cutter table 41. A first positioning protrusion 4132 corresponding to the first positioning hole 432 is also provided on the cutter table 41. When installing the cutter 43, in order to quickly position the cutter 43 and further prevent it from rotating, the number of first positioning protrusions 4132 can be one or more, and the shape of the first positioning protrusion 4132 can be circular, triangular, square, polygonal or semi-circular. The number of first positioning holes 432 corresponds to the number of first positioning protrusions 4132, and the shape of the first positioning holes 432 is adapted to the first positioning protrusions 4132, respectively set as circular holes, triangular holes, square holes, polygonal holes and semi-circular holes.

[0038] Working principle: such as Figure 8-9 As shown, after adjusting the binding tape to the appropriate position on the branch, press the handle 3. The bow frame 2 moves downward again until the clamping device 1 contacts the front end of the frame 4. Press the handle 3 further, and the forming anvil 15 contacts the front end of the needle box 5. Under the pressure of the forming anvil 15, the needle box 5 rotates downward, causing the pressing needle head 44 to press the binding needle out from the needle outlet 51. The needle foot of the binding needle contacts the forming anvil 15 and is bent, thus completing the binding of the binding tape TP. At the same time, the impact block 42 contacts the lower arc section of the hook head 13 and rotates clockwise downward. As the impact block 42 rotates clockwise downward, the cutter 43 is exposed and cuts the binding tape TP by the cutter 43. Then release the handle 3, and the bow frame 2 rotates counterclockwise upward. The bow frame 2 returns to the open position again, and the impact block 42 rotates counterclockwise upward to reset under the action of the torsion spring. In this way, one binding and cutting operation is completed.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Content not described in detail in this specification is prior art known to those skilled in the art.

[0040] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A cutting blade, said cutting blade being mounted on a branch tying machine, wherein the top of the cutting blade (43) has 7-10 serrations (433), characterized in that, The tooth height of the saw teeth (433) is 1.5-2.5mm, the tooth width of the saw teeth (433) is 1.5-2.5mm, the total width of the cutter (43) is 15.8-16.2mm, and chamfers are provided on both sides of each saw tooth (433).

2. The cutter according to claim 1, characterized in that, The top of the cutter (43) has 7 serrations (433); the tooth width of the serrations (433) is 2.5 mm, and the total width of the cutter (43) is 18 mm. A U-shaped opening (431) and at least one first positioning hole (432) are provided at the bottom of the cutter (43).

3. A branch tying machine, comprising the cutter (43) of claim 2, the branch tying machine comprising a clamping device (1), an arched frame (2), a handle (3), a frame (4), a needle box (5), and a strap box (6), wherein the strap can be pulled out from the front end of the frame (4), and the cutter table (41) is fixed to the front end of the frame (4); the arched frame (2) is rotatable relative to the frame (4); the clamping device (1) is mounted on the front end of the arched frame (2) and is capable of clamping the strap from the front end of the frame (4), characterized in that, The cutting table (41) is located at the front end of the frame 4. The cutting table (41) is connected to an impact block (42), a cutter (43) and a pressure needle head (44). The cutting table (41) is provided with a screw hole (4131) corresponding to the U-shaped opening (431). The cutting table (41) is also provided with a first positioning protrusion (4132) corresponding to the first positioning hole (432).

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