CN211558283U

CN211558283U - Tapping knife

Info

Publication number: CN211558283U
Application number: CN201921737840.0U
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: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-09-25
Anticipated expiration: 2029-10-16

Abstract

The utility model discloses a tapping knife on a tapping machine, which comprises a base, wherein a driving motor is arranged in the base, the driving motor can drive a driving belt pulley on the outer side wall of the base to rotate through a gear component in the base, the root part of a swing arm is hinged with a column protrusion on the outer side wall of the base, and a torsional spring is sleeved on the protrusion column; the head of the swing arm is provided with a rotatable cutter head, a blade is arranged on the cutter head, a driven belt pulley is fixedly arranged on one side of the cutter head, and the driven belt pulley is in transmission connection with the driving belt pulley through a belt. The utility model discloses a tapping knife through motor drive blade disc fast revolution, also can cut the gluey line of leaving over fast when rotary-cut rubber bark tapping. The belt pulley is used for transmitting power to the cutter head, and the cutter head has the advantages of simple structure, stable transmission, buffering and vibration absorption.

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, and can not well remove rubber lines (the rubber lines are formed by solidifying rubber juice left on barks after tapping last time, and the next tapping can be influenced).

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a tapping knife capable of eliminating rubber lines in tapping is provided.

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

the improvement of a tapping knife is that:

the tapping knife comprises a base, a driving motor is arranged in the base and can drive a driving belt pulley on the outer side wall of the base to rotate through a gear component in the base, the root part of a swing arm is hinged with a column protrusion on the outer side wall of the base, and a torsion spring is sleeved on the protrusion column; the head of the swing arm is provided with a rotatable cutter head, a blade is arranged on the cutter head, a driven belt pulley is fixedly arranged on one side of the cutter head, and the driven belt pulley is in transmission connection with the driving belt pulley through a belt.

Further, the base is sleeved on a lead screw of the tapping machine and can slide up and down along the lead screw along with the rotation of the lead screw.

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

Furthermore, a profiling component which can rotate and swing is arranged at the head part of the swing arm, a cutter disc is arranged on one side of the profiling component, and a driven pulley is arranged on the other side of the profiling component.

Further, the cutter head is installed on the profiling component through a locking screw.

Furthermore, the number of the blades is more than three, and the blades are uniformly distributed on the outer edge of the cutter head.

Furthermore, a depth adjusting hole is formed in the blade, and the blade is fixedly installed on the cutter head through a bolt penetrating through the depth adjusting hole.

The utility model has the advantages that:

the utility model discloses a tapping knife through motor drive blade disc fast revolution, also can cut the gluey line of leaving over fast when rotary-cut rubber bark tapping. The belt pulley is used for transmitting power to the cutter head, and the cutter head has the advantages of simple structure, stable transmission, buffering and vibration absorption.

The shape of the trunk of a rubber tree growing in nature is not a perfect circle, but the rubber tapping knife disclosed by the utility model can enable the blade on the cutter disc to always tightly support the bark for cutting through the action of the torsion spring, and the profiling component can roll along the bark, thereby ensuring that the cutting depth of the blade on the surface of the bark is uniform and consistent, and solving the problem that the blade cannot be 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 addition, the cutting depth can be adjusted at any time by utilizing the depth adjusting hole formed on the blade.

Drawings

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

fig. 2 is a schematic view of the installation position of the tapping knife a disclosed in embodiment 1 of the present invention installed on the tapping machine.

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, this embodiment discloses a tapping knife, the tapping knife includes a base 4, a driving motor is disposed inside the base, the driving motor can drive a driving pulley 7 on the outer sidewall of the base to rotate through a gear member in the base, the root of a swing arm 6 is hinged to a post protrusion on the outer sidewall of the base, and 2 torsion springs 5 are sleeved on the post protrusion, one end of each torsion spring 5 is connected to a component controlling retraction and extension on the base, the other end of each torsion spring just abuts against a stop 11 of the swing arm when applying force, the head of the swing arm is provided with a profiling member 1 capable of rotating and swinging, a cutter head 2 is mounted on one side of the profiling member, a blade 3 is mounted on the cutter head, a driven pulley 8 is mounted on the other side of the profiling member, and the driven pulley is in transmission connection with the driving pulley.

As shown in FIG. 2, the base is sleeved on a lead screw of the tapping machine and can slide up and down along the lead screw along with the rotation of the lead screw.

In this embodiment, the cutterhead is mounted to the profile member by a jam screw. The number of the blades is four, and the blades are uniformly distributed on the outer edge of the cutter head. The blade is provided with a depth adjusting hole 10, and the blade is fixedly arranged on the cutter head through a bolt penetrating through the depth adjusting hole.

After the rubber tapping machine provided with the rubber tapping knife disclosed by the embodiment is sleeved on a rubber tree, the blades on the cutter disc always abut against the bark through the torsional spring, the profiling component can roll along the bark, so that the cutting depths of the blades on the surface of the bark are uniform, and in addition, the cutting depths can be adjusted at any time through the depth adjusting holes formed in the blades.

Claims

1. A tapping knife is characterized in that: the tapping knife comprises a base, a driving motor is arranged in the base and can drive a driving belt pulley on the outer side wall of the base to rotate through a gear component in the base, the root part of a swing arm is hinged with a column protrusion on the outer side wall of the base, and a torsion spring is sleeved on the protrusion column; the head of the swing arm is provided with a rotatable cutter head, a blade is arranged on the cutter head, a driven belt pulley is fixedly arranged on one side of the cutter head, and the driven belt pulley is in transmission connection with the driving belt pulley through a belt.

2. The tapping knife of claim 1, wherein: the base is sleeved on a lead screw of the tapping machine and can slide up and down along the lead screw along with the rotation of the lead screw.

3. The tapping knife of claim 1, wherein: a stop block is arranged on the swing arm.

4. The tapping knife of claim 1, wherein: a head of the swing arm is provided with a profiling component which can swing in a rotating way, one side of the profiling component is provided with a cutter head, and the other side of the profiling component is provided with a driven pulley.

5. The tapping knife according to claim 4, wherein: the cutter head is arranged on the profiling component through a locking screw.

6. The tapping knife of claim 1, wherein: the number of the blades is more than three, and the blades are uniformly distributed on the outer edge of the cutter head.

7. The tapping knife of claim 1, wherein: the blade is provided with a depth adjusting hole, and the blade is fixedly arranged on the cutter head through a bolt penetrating through the depth adjusting hole.