CN106134924A - cutter - Google Patents

Abstract

The invention discloses a cutter, which comprises a supporting seat, a rotating shaft, a driving mechanism, a rotating ferrule and a blade, wherein the driving mechanism is arranged on the supporting seat and used for driving the rotating shaft to rotate; the rotating collar comprises a collar part, and a plurality of positioning needles which extend outwards and are used for being inserted into trees are circumferentially arranged on the collar part; the central axis of the collar part is superposed with the central axis of the rotating shaft; the blade is provided with a cutting end for cutting bark, and the positioning needle is positioned at one side of the cutting end; the distance between the cutting end and the central axis of the rotating shaft is L1, and the distance L1 is smaller than the distance between the end of the positioning needle far away from the rotating shaft and the central axis of the rotating shaft and is larger than the radius of the outer edge of the collar part. The invention can reduce or even avoid the phenomenon of tree damage caused by the cutting of the blade under the condition of ensuring the discharge amount of the latex; moreover, the rubber thread on the blade is removed without stopping the machine, thereby improving the working efficiency.

Description

cutter

technical field

The present invention relates to a cutter.

Background technique

The existing natural rubber mining method is done manually, mainly by the rubber picking personnel holding a rubber picking knife to cut grooves on the bark of the rubber tree, so that the latex in the inner layer of the bark flows out and is collected by a collecting device. During the specific operation process, the rubber picking personnel hold the rubber picking knife to make approximate reciprocating movements, and keep their eyes on the tip of the knife to cut off the outer bark and bast of the rubber tree piece by piece. In order to ensure the output of latex, in the actual cutting process, due to reasons such as technical level or poor eyesight, it is easy to cause damage to the tree due to too deep cutting depth, and the place where the cutting is too deep will grow pimples, which will affect the bark. Growth will affect the latex output in the future, and will also bring inconvenience to the subsequent rubber picking operations.

Contents of the invention

In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a cutter, which can reduce the phenomenon that the blade cuts too deeply.

In order to solve the above problems, the technical scheme adopted in the present invention is as follows:

A cutter includes a support seat, a rotating shaft, a driving mechanism installed on the support seat and used to drive the rotating shaft to rotate, a rotating collar rotatably set on the supporting seat, and a blade connected to the rotating shaft; the rotating collar includes a collar part , the upper circumference of the collar part is arranged with several positioning pins extending outwards and used for inserting into trees; the central axis of the collar part coincides with the central axis of the rotating shaft; the blade is formed with a cutting end for cutting bark, The positioning pin is located on one side of the cutting end; the distance between the cutting end and the central axis of the rotating shaft is the distance L1, which is smaller than the distance between the end of the positioning pin away from the rotating shaft and the central axis of the rotating shaft, and greater than the distance between the collar part Outer radius.

The end of the blade away from the rotating shaft is formed as the cutting end, and the end close to the rotating shaft is formed as the tail end of the blade, and the cutting end and the tail end of the blade are respectively placed on both sides of the central axis of the rotating shaft; The fixed disc has a fixed blade portion for cooperating with the tail end of the blade to form a scissors structure.

The blade is also provided with a concave position through which the fixed blade part passes; the concave position and the cutting end are located on the same side of the central axis of the rotating shaft.

A vernier caliper is fixed on the outside of the support seat, and the length direction of the scale body of the vernier caliper is consistent with the axial direction of the rotating shaft; rollers are installed on the vernier of the vernier caliper.

There is a socket on the support seat, and the rotating collar is rotatably set on the socket part. A through hole is provided on the socket part. The rotating shaft is rotatably installed in the supporting seat. The blade is connected to the rotating shaft from the through The hole protrudes from the position outside the support seat.

The drive mechanism includes a motor.

The rotating shaft is rotatably installed in the supporting seat, and the driving mechanism also includes a driving gear connected to the output shaft of the motor, and a driven gear connected to the rotating shaft and meshed with the driving gear.

The support seat is hollow, and the driving gear and the driven gear are located in the support seat; the part of the body of the motor exposed outside the support seat is formed as a grip part for people to hold.

Both the rotating ferrule and the blade are located outside the support seat.

The rotating ring and the blades are sequentially arranged along the axial direction of the rotating shaft.

Compared with the prior art, the beneficial effects of the present invention are:

The present invention adopts the combination design of the rotating ferrule, the blade and the driving mechanism, and reasonably arranges the structure of the rotating ferrule and the blade, and can use the positioning needle for positioning, so as to reduce or even avoid damage to the tree caused by too deep cutting of the blade. Moreover, it can also make the operation of picking glue simple and convenient, which can reduce the technical requirements and vision requirements for the picking personnel; in addition, by setting the fixed blade on the fixed plate, it can also reduce the damage caused by the glue thread winding around the blade. It is a phenomenon that affects the cutting effect, and it can also cut bark and glue lines at the same time, thereby improving work efficiency.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is another direction schematic diagram of the present invention;

Fig. 3 is the internal schematic diagram of the present invention;

Among them, 1. support seat; 2. rotating ferrule; 21. positioning pin; 3. blade; 31. cutting end; 4. vernier caliper; 41. roller; 5. rotating shaft; 6. fixed plate; 61. fixed blade; 71, motor; 72, driving gear; 73, driven gear.

detailed description

Below, in conjunction with accompanying drawing and specific embodiment, the present invention is described further:

As shown in Figures 1-3, it is the cutter of the present invention, including a support base 1, a rotating shaft 5, a driving mechanism installed on the support base 1 and used to drive the rotation shaft 5, and a rotating shaft rotatably sleeved on the support base 1. Ferrule 2, the blade 3 that is connected on the rotating shaft 5; The rotating ferrule 2 comprises a ferrule part, and the circumference of this ferrule part is arranged with several positioning pins 21 that extend outwards and are used to insert trees; the center of the ferrule part The axis coincides with the central axis of the rotating shaft 5; the blade 3 is formed with a cutting end 31 for cutting bark, and the positioning pin 21 is located on one side of the cutting end 31; the cutting end 31 and the central axis of the rotating shaft 5 The distance is the distance L1, which is smaller than the distance L2 between the end of the positioning pin 21 away from the shaft 5 and the central axis of the shaft 5, and larger than the outer radius L3 of the collar portion. Specifically, the rotating collar 2 and the blade 3 are sequentially arranged along the axial direction of the rotating shaft 5 .

In actual use, the operator inserts the positioning pin 21 of the cutter into the xylem of the rubber tree. At this time, the driving mechanism works and drives the blade 3 to rotate, so that the cutting end 31 can be used to cut the rubber tree bark, and by using the positioning pin The positioning of 21 can reduce or even avoid the phenomenon that the cutting end 31 of the blade 3 is fed too deep during the cutting process and the phenomenon that the blade 3 cuts too deep and causes damage to the tree occurs.

Wherein, the difference between the distance L2 between the end of the positioning needle 21 away from the rotating shaft 5 and the central axis of the rotating shaft 5 and the distance L1 between the cutting end 31 and the central axis of the rotating shaft 5 can be set according to actual needs. In this embodiment, the distance L2 between the end of the positioning needle 21 far away from the rotating shaft 5 and the central axis of the rotating shaft 5 is 2 mm larger than the distance L1 between the cutting end 31 and the central axis of the rotating shaft 5, so that the blade 3 The cutting end 31 cuts the rubber tree bark at a distance of 2 mm from the rubber tree wood.

Preferably, the end of the blade 3 away from the rotating shaft 5 is formed as the cutting end 31, and the end close to the rotating shaft 5 is formed as a knife tail end, and the cutting end 31 and the knife tail end are separated on both sides of the central axis of the rotating shaft 5; A fixed disc 6 is fixed on the support base 1 , and the fixed disc 6 has a fixed blade portion 61 for cooperating with the tail end of the blade 3 to form a scissors structure. During blade 3 rotation process, can cut off the glue line of the knife tail end of blade 3 by utilizing the cooperation of fixed blade portion 61 and knife tail end, thereby can reduce glue line to be wrapped around blade 3 phenomenon, and, also can cut bark and Glue line, which can improve work efficiency.

Specifically, the support base 1 has a sleeve portion, the rotating collar 2 is rotatably fitted outside the sleeve portion, and the sleeve portion is provided with a through hole, and the rotating shaft 5 is rotatably installed in the support base 1 The blade 3 is connected to the position where the rotating shaft 5 protrudes from the through hole to the outside of the support base 1, and by adopting the above structure, it is easy to install. The fixed disk 6 is fixedly connected with the sleeve part.

Preferably, the blade 3 is also provided with a concave position through which the fixed blade portion 61 passes; the concave position and the cutting end 31 are located on the same side of the central axis of the rotating shaft 5 . And by adopting the above-mentioned structure, the glue thread wound around the blade 3 can be cut off by utilizing the fixed blade portion 61 to move in and out of the recess during the rotation of the blade 3, thereby further reducing the phenomenon that the glue thread is wrapped around the blade 3, and, There is no need to stop the machine to remove the glue line on the blade 3, thereby improving work efficiency.

Preferably, a vernier caliper 4 is fixed on the outside of the support base 1 , and the length direction of the body of the vernier caliper 4 is consistent with the axial direction of the rotating shaft 5 ; a roller 41 is installed on the vernier of the vernier caliper 4 . And by adopting the above-mentioned structure, the roller 41 can be utilized to roll along the track provided on the rubber tree, thereby avoiding the deflection phenomenon of the cutter during the cutting process, and by using the vernier caliper 4, it is also possible to accurately control the movement of the cutter on the rubber tree. Cut spacing in height direction.

Preferably, the driving mechanism includes a motor 71 . Further preferably, the driving mechanism further includes a driving gear 72 connected to the output shaft of the motor 71 , and a driven gear 73 connected to the rotating shaft 5 and meshing with the driving gear 72 . When in use, the motor 71 drives the driving gear 72 to rotate, so that the driven gear 73 can drive the rotating shaft 5 to rotate. By adopting the above-mentioned structure, the internal structure of the cutter can be made more compact, and the volume can be effectively reduced. Wherein, the driving gear 72 and the driven gear 73 are all bevel gears.

The support base 1 is hollow, and the driving gear 72 and the driven gear 73 are located in the support base 1; the body of the motor 71 exposed outside the support base 1 is formed as a grip for people to hold in their hands, so as to It is convenient for the operator to hold the grip part of the cutter to cut the rubber tree. Both the rotating collar 2 and the blade 3 are located outside the support base 1 .

The actual use process of the present invention is as follows: the operator first puts the outer edge of the cutter against the cut surface of the rubber tree, and inserts the positioning pin 21 into the xylem of the rubber tree. At this time, the driving mechanism works and drives the blade 3 to rotate to cut Rubber tree bark, and after performing the above operations once or twice, the roller cutter can be used to cut in a close-following manner, as follows: the roller cutter advances along the processed secant line to collect rubber, and after 5- After 10 times of mechanized rubber picking, when the cutting may be relatively shallow, the cutter of the present invention is re-used, thereby recalibrating again. Therefore, the continuous circulation in this way can significantly improve the rubber picking efficiency.

Those skilled in the art can make various other corresponding changes and deformations according to the above-described technical solutions and ideas, and all these changes and deformations should fall within the protection scope of the claims of the present invention.

Claims (10)

1. The cutter is characterized in that: it includes a support seat, a rotating shaft, a drive mechanism installed on the support seat and used to drive the rotating shaft to rotate, a rotating collar rotatably sleeved on the support seat, and a blade connected to the rotating shaft; The ferrule includes a ferrule part, on the ferrule part, a number of positioning pins extending outwards and used to be inserted into the tree are arranged on the circumference; the central axis of the ferrule part coincides with the central axis of the rotating shaft; The cutting end of the bark, the positioning pin is located on one side of the cutting end; the distance between the cutting end and the central axis of the rotating shaft is distance L1, which is less than the distance between the end of the positioning pin away from the rotating shaft and the central axis of the rotating shaft, And larger than the outer edge radius of the ferrule part. 2. The cutter according to claim 1, characterized in that: the end of the blade far away from the rotating shaft is formed as the cutting end, and the end close to the rotating shaft is formed as the tail end of the blade, and the cutting end and the tail end of the blade are respectively placed in the center of the rotating shaft On both sides of the axis; the support seat is fixed with a fixed plate, and the fixed plate has a fixed blade portion for cooperating with the tail end of the blade to form a scissors structure. 3. The cutter according to claim 2, characterized in that: the blade is further provided with a recess through which the fixed blade passes; the recess and the cutting end are located on the same side of the central axis of the rotating shaft. 4. The cutter according to claim 1, characterized in that: a vernier caliper is fixed on the outside of the support base, and the length direction of the scale body of the vernier caliper is consistent with the axial direction of the rotating shaft; scroll wheel. 5. The cutter according to claim 1, characterized in that: the supporting base has a socket portion, the rotating collar is rotatably fitted on the socket portion, the socket portion is provided with a through hole, the The rotating shaft is rotatably installed in the supporting seat, and the blade is connected to the part where the rotating shaft protrudes from the through hole outside the supporting seat. 6. The cutter of claim 1, wherein the drive mechanism comprises a motor. 7. The cutter according to claim 6, characterized in that: the rotating shaft is rotatably installed in the support seat, and the driving mechanism further includes a driving gear connected to the output shaft of the motor, connected to the rotating shaft and connected to the driving Gear meshing driven gear. 8. The cutter according to claim 7, characterized in that: the supporting seat is hollow, the driving gear and the driven gear are located in the supporting seat; the part of the body of the motor exposed outside the supporting seat is formed as A grip portion for holding by a human hand. 9. The cutter according to claim 8, characterized in that: the rotating collar and the blade are located outside the support seat. 10. The cutter according to claim 1, wherein the rotating collar and the blades are arranged in sequence along the axial direction of the rotating shaft.