CN210610544U

CN210610544U - Tapping knife

Info

Publication number: CN210610544U
Application number: CN201920735810.XU
Authority: CN
Inventors: 许振昆; 吴纪营; 张兴明
Original assignee: Ningbo Zhongchuang Hanwei Technology Co Ltd
Current assignee: Ningbo Zhongchuang Hanwei Technology Co Ltd
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2020-05-26
Anticipated expiration: 2029-05-21

Abstract

The utility model discloses a novel rubber tapping knife, including the tool bit swing arm, the dark locating part of sword is connected to tool bit swing arm one end, fixes the rubber tapping blade on the dark locating part of sword. The utility model discloses a tapping knife, because the knife depth locating part can be along with the tree form constantly freely swing the transformation angle, make the tapping knife piece can be perpendicular to the trunk centre of a circle all the time, thereby guaranteed that the cutting depth is infinitely close evenly, solved in the past and met the concave position, the blade cutting is not in place; when the rubber tree is in a convex position, the blade is cut too deeply, and the blade is damaged and the rubber tree is injured.

Description

Tapping knife

Technical Field

The utility model belongs to the agricultural machine field, specific theory relates to a tapping knife for rubber tree rubber tapping in this field.

Background

Since the discovery of natural rubber from rubber trees, the method for forming rubber bark into a rubber slide way is always to manually cut by a rubber cutter; in recent years, electric tapping knives have been available, but manual hand-held operation is still required.

The Chinese patent application CN104429813A discloses a rubber tapping machine, which comprises a tree binding fixing frame and two annular planetary gear shells respectively arranged at the upper end and the lower end of the tree binding fixing frame, wherein a vector moving tool rest assembly is arranged between the two annular planetary gear shells; a gear shaft is arranged on the vector moving tool rest assembly, and a motor and a tapping tool rest with a gear rack are arranged in the vector moving tool rest assembly; the rubber tapping knife rest is internally provided with a rubber tapping knife assembly, the top end of the rubber tapping knife assembly is connected with a lead screw, and the rubber tapping knife assembly can move up and down in the rubber tapping knife rest by rotating the lead screw. The tapping knife disclosed by the invention can only change the tapping depth in a mode of replacing the knife head, so that the replacement is troublesome, the knife heads with different specifications and sizes are required to be prepared, and the equipment cost is increased.

The utility model discloses a rubber tapping knife is disclosed in chinese utility model patent CN 204907383U, by the motor control handle of a knife, the handle of a knife stretches out to the gyro wheel and stops when supporting tight rubber bark, and the tool bit cuts into in the rubber bark this moment, sets up the spring in the cavity in the handle of a knife, can carry out automatic adjustment to the flexible length of handle of a knife according to the thickness of rubber tree trunk at the rubber tapping in-process, makes the gyro wheel support tight rubber bark all the time. However, the tapping knife has a complex structure and high processing cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a rubber tapping knife with adjustable depth and capable of guaranteeing uniform cutting is provided.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a novel tapping knife, its improvement lies in: the rubber tapping knife comprises a knife head swing arm, wherein one end of the knife head swing arm is connected with a knife depth limiting part, and a rubber tapping blade is fixed on the knife depth limiting part.

Furthermore, a column protrusion is arranged on the cutter head swing arm.

Furthermore, a stop block is arranged on the cutter head swing arm.

Furthermore, a clamping groove for placing a rubber tapping blade is formed in the tool bit swing arm.

Furthermore, the knife depth limiting part is hinged with the tool bit swing arm through a locking screw.

Further, the knife depth limiting part is provided with a limiting part and a guiding part.

Furthermore, a depth adjusting hole is formed in the tapping blade.

Furthermore, the tapping blade passes through the depth adjusting hole through a screw and is fixed on the cutter depth limiting part.

Furthermore, the tapping blade is marked with scales.

The utility model has the advantages that:

the shape of the trunk of a rubber tree growing in nature is not a perfect circle, and the rubber tapping knife disclosed by the utility model can continuously and freely swing and change the angle along with the tree shape due to the knife depth limiting part, so that the rubber tapping blade can be always vertical to the circle center of the trunk, thereby ensuring that the cutting depth is infinitely close to uniformity, and solving the problem that the blade cannot cut in place when meeting a concave position in the past; when the rubber tree is in a convex position, the blade is cut too deeply, and the blade is damaged and the rubber tree is injured.

In the circumferential cutting process of the rubber tree, the guiding part of the cutter depth limiting part plays a guiding role, the cutting depth is determined by adjusting the distance difference between the rubber tapping blade and the highest point of the limiting part, and the condition that the rubber tree is damaged due to the over-deep cutting cannot occur due to the limiting function of the limiting part. The rubber tapping blade is provided with a depth adjusting hole and scales so as to conveniently adjust the cutting depth at any time. The studs and stops on the swing arm of the bit are designed to mate with other knife retraction and extension features, such as a torsion spring.

The utility model discloses a tapping knife, simple structure is clear, and excellent in use effect, greatly reduced automatic tapping machine's subassembly cost.

Drawings

Fig. 1 is a schematic structural diagram I of a tapping knife disclosed in embodiment 1 of the present invention.

Fig. 2 is a schematic structural view II of the tapping knife disclosed in embodiment 1 of the present invention.

Fig. 3 is a schematic structural view III of the tapping knife disclosed in embodiment 1 of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Embodiment 1, as shown in fig. 1-3, this embodiment discloses a novel tapping knife, including tool bit swing arm 1, dark locating part 2 of tool bit swing arm one end connection sword, dark locating part 2 of sword is articulated with tool bit swing arm 1 through anticreep screw 8, dark locating part 2 of sword can freely swing, dark locating part 2 of sword is provided with spacing portion 4 and guide portion 5, fix tapping blade 3 on the dark locating part 2 of sword, it has depth adjustment hole 4 to open on tapping blade 3, tapping blade 3 passes depth adjustment hole through the screw and fixes on dark locating part 2 of sword.

As an alternative, in this embodiment, the swing arm of the cutter head is provided with a stud 6 for connecting with other components, for example, hinged with a torsion spring, and the swing arm of the cutter head is further provided with a stopper, for example, for being tensioned and stressed by the torsion spring.

As an alternative, in this embodiment, a slot for placing the tapping blade is provided on the tool bit swing arm. The clamping groove is arranged to better fix the blade on the blade depth limiting part 2 according to the shape of the tapping blade and can not shift when the cutting is stressed.

Alternatively, in this embodiment, the tapping blade is marked with a scale. The cutting depth can be directly adjusted according to the scales, and the cutting device is more accurate and convenient.

Claims

1. A tapping knife is characterized in that: the rubber tapping machine comprises a tool bit swing arm, wherein one end of the tool bit swing arm is connected with a tool depth limiting piece, and a rubber tapping blade is fixed on the tool depth limiting piece; the cutter depth limiting piece is hinged with the cutter head swing arm through a locking screw; the cutter depth limiting piece is provided with a limiting part and a guiding part; the tapping blade is provided with a depth adjusting hole; the tapping blade passes through the depth adjusting hole through a screw and is fixed on the cutter depth limiting part.

2. The tapping knife of claim 1, wherein: the tool bit swing arm is provided with a column protrusion.

3. The tapping knife of claim 1, wherein: the tool bit swing arm is provided with a stop block.

4. The tapping knife of claim 1, wherein: the cutter head swing arm is provided with a clamping groove for placing a tapping blade.

5. The tapping knife of claim 1, wherein: the tapping blade is marked with scales.