A single-blade cutting machine with no blind spots and easy blade replacement using a simplified gear cam method

Abstract

The present invention relates to a cutting machine with an integrated blade system that eliminates blind spots and allows for easy blade replacement, utilizing a simplified gear cam method for removing shoots to increase crop yield by simultaneously operating a pair of cutting blades to achieve clear cutting, eliminate blind spots during cutting, and facilitate blade replacement. The machine comprises a support having a certain height, a drive unit mounted on the support so as to be vertically movable, and a cutting device that receives power from the drive unit. The cutting device is composed of a pair of drive blades, which simplifies the structure of the cutting device, thereby reducing manufacturing costs and facilitating the assembly process, resulting in improved productivity. Furthermore, the combination of a pair of drive blades eliminates blind spots during shoot cutting, thereby enhancing cutting efficiency. Additionally, the pair of drive blades operates in mutually opposite directions to perform cutting operations, resulting in improved work efficiency due to clear cutting.

Description

Technology Field

[0001] The present invention relates to a pinning machine with an integrated blade system that eliminates cutting blind spots using a simplified gear cam method and allows for easy blade replacement. More specifically, it relates to a pinning machine with an integrated blade system that eliminates cutting blind spots using a simplified gear cam method and allows for easy blade replacement by simultaneously operating a pair of pinning blades used to remove shoots to increase crop yield, thereby ensuring clear cutting without the occurrence of blind spots during cutting and facilitating easy blade replacement. Background Technology

[0003] Generally, pruning is used to cut and remove unnecessary shoots to increase the yield.

[0005] Such a pruning device is composed of a support, a drive unit mounted at a certain height on the support, a cutting device that receives power from the drive unit to cut the shoot, wheels provided at the bottom to move the furrow, and a handle for steering the pruning device.

[0007] In addition, the cutting device comprises cutting sections located on both the left and right sides centered on the driving unit, and respective driving cams for operating the driving blades of the cutting sections located on both sides, wherein the cutting section is configured such that a driving blade located above or below a fixed blade reciprocates to cut the shoot.

[0009] However, such conventional cutting machines have the problem of delayed cutting operations because the cutting parts are configured to be driven on both sides, preventing cutting in the central area where the blade is not located, and cutting is performed by the reciprocating motion of the driving blade, which is composed of a pair of fixed and driving blades, resulting in indistinct cutting.

[0010] In addition, the aforementioned drive blade is configured to be detachable from the inside of the drive unit, which has the problem of taking a long time to replace the blade when it is damaged or dull. Prior art literature

[0012] Patent Application 10-2023-0120345 The problem to be solved

[0013] Accordingly, the present invention has the problem that conventional cutting machines are configured such that the cutting parts are driven on both sides, thereby preventing cutting in the central part where the blade is not located, and that cutting is performed by the reciprocating motion of the driving blade, which is composed of a pair of fixed blades and a driving blade, resulting in incomplete cutting and delayed cutting operations.

[0014] In addition, the drive blade is configured to be detachable from the inside of the drive unit, thereby resolving the problem of taking a long time to replace the blade when it is damaged or dull. means of solving the problem

[0016] The present invention is characterized by comprising a support having a certain height, a drive unit mounted on the support so as to be vertically movable, and a cutting device that receives power from the drive unit, wherein the cutting device is composed of a pair of drive blades. Effects of the invention

[0018] The present invention simplifies the structure of the cutting device, thereby reducing manufacturing costs and facilitating the assembly process, resulting in improved productivity.

[0019] In addition, it is composed of a pair of drive blades, so there are no blind spots when cutting shoots, which has the effect of improving cutting efficiency.

[0020] In addition, the aforementioned pair of driving blades are operated in opposite directions to perform cutting operations, thereby having the effect of improving work efficiency through clear cutting.

[0021] In addition, the above-mentioned drive unit is configured to change the cutting direction, so that when cutting in places such as sloping fields, the direction of the drive blade can be positioned at an angle for use. Brief explanation of the drawing

[0023] FIG. 1 is an exploded example diagram according to an embodiment of the present invention. FIG. 2 is an exemplary diagram of a combined state according to an embodiment of the present invention. FIG. 3 is a partial enlarged example diagram according to an embodiment of the present invention. FIG. 4 is an exemplary diagram of a cutting section according to an embodiment of the present invention. FIG. 5 is an example diagram of a cut section disassembled according to an embodiment of the present invention. FIG. 6 is an exploded example diagram of a movable bar according to an embodiment of the present invention. FIG. 7 is a planar example view with a movable bar mounted according to an embodiment of the present invention. FIG. 8 is a front view example of a movable bar mounted according to an embodiment of the present invention. FIG. 9 is an illustrative diagram according to another embodiment of the present invention. Specific details for implementing the invention

[0024] The following is a detailed description with reference to the attached drawings.

[0025] The present invention comprises a support frame (100) on which a driving unit (200) is mounted, a driving unit (200) mounted on the support frame (100), and a cutting blade (300) connected to the driving unit (200) and configured to cut a shoot.

[0027] The above support frame (100) is composed of a support member (110) having a certain length, a wheel provided at the lower part of the support member (110) to move along a groove, a handle (120) provided at the upper part of the support member (110), and a drive mounting part (130) mounted on the support member (110) and mounted to be able to move up and down and rotate.

[0028] The above support (110) has fastening holes (111) formed at equal intervals on one surface so as to adjust the height of the driving unit (200).

[0029] The above drive mounting part (130) is composed of a lifting fixing member (131) into which a support member (110) is fitted so as to be raised along the support member (110), and an engine mounting member (132) which is connected to the front of the lifting fixing member (131) so as to be connected to adjust the left and right horizontal angles.

[0030] The above lifting fixing device (131) is configured to be fixed after height adjustment by being fastened to the fastening hole (111) of the support (110) through a height fixing bolt.

[0031] The above engine mounting member (132) is composed of a rotating fastening plate (132a) that is axially connected to a lifting fixing member (131) and an engine fastening plate (132b) on which the engine is fixedly installed.

[0032] The above-mentioned rotary fastening plate (132a) is configured to have a rotation angle adjustment hole (132c) formed through it in an arc and to be fixed to the lifting fixing member (131) with a horizontal fixing bolt.

[0033] The above handle (120) is equipped with a drive control lever (140) that controls the drive of the drive unit (200).

[0035] The above drive unit (200) is composed of a drive engine (210) and a drive gear unit (230) provided inside a drive case (220) to transmit power from the drive engine (210).

[0036] The above drive case (220) is composed of a lower drive case (221) and an upper drive case (222).

[0037] The upper and lower drive cases (221, 222) have a cam gear mounting hole (232a) formed for the double drive cam gear (232), and guide rails (224) formed with a certain length to guide the linear reciprocating motion of the movable bar (234) on both sides of the cam gear mounting hole (232a).

[0038] The guide rail (224) has two or more movement distance limiting holes (224a) formed to limit the movement distance of the movable bar (234), and is fastened so that a guide projection (224b) protrudes.

[0040] The above drive gear unit (230) is composed of a drive gear (231) that rotates by receiving power from a drive engine (210), a double drive cam gear (232) that rotates by meshing with the drive gear (231), a drive cam (233) provided on both upper and lower sides that rotates by the double drive cam gear (232), and a movable bar (234) that is axially connected to one end of the drive cam (233).

[0041] The above-mentioned dual drive cam gear (232) has a cam drive hole (232a) formed therein so that a drive cam (233) is fitted and rotated at an eccentric position from the center.

[0042] The above cam drive hole (232a) is formed in a symmetrical direction on the upper and lower surfaces, so that the driving cam (233) seated thereon can perform linear reciprocating motion in mutually opposite directions.

[0043] The above drive cam (233) is fitted into the cam drive hole (232a) and passes through the double drive cam gear (232) so that the drive cams (233) on both sides are connected.

[0044] The above-mentioned movable bar (234) is formed by bending, and one end connected to the drive cam (233) is seated on the guide rail (224), and a cutting blade is attached to the bent end.

[0045] The above-mentioned movable bar (234) has a linear guide groove (234a) formed therein, into which a guide projection (224b) is fitted to move in a linear reciprocating motion.

[0047] The above cutting blade section (300) is composed of an upper cutting blade (310) and a lower cutting blade (320) and is configured to move in opposite directions as the movable bar (234) moves left and right so that cutting is performed.

[0048] The upper and lower cutting blades (310, 320) are formed such that each cutting blade protrudes at equal intervals.

[0049] The upper and lower portions of the cutting blade are provided with a cutting blade guard (330) that maintains the interlocking distance between the upper and lower cutting blades (320).

[0051] In the implementation of the present invention, wheels may be provided on both the left and right sides of the support (110) to enable cutting of grass, etc. Explanation of the symbols

[0053] 100 : Support frame 110 : Support 111 : Fastening hole 120 : Handle 130 : Drive mounting part 131 : Elevator fixing device 132 : Engine mounting point 132a : Rotating fastening plate 132b : Engine mounting plate 132c : Rotation angle adjustment hole 140 : Drive control lever 200 : Drive unit 210: Drive engine 220 : Drive case 221 : Bottom drive case 222 : Upper drive case 224 : Guide rail 224a : Movement distance restricted hole 224b : Guide projection 232 : Dual-drive cam gear 232a: Cam gear mounting hole 234 : Movable bar 230 : Drive gear section 231 : Drive gear 232 : Dual-drive cam gear 232a : Cam movable 233 : Drive cam 234 : Movable bar 234a : Straight line guide groove 234b : Guide projection 300 : Cutting blade 310 : Upper cutting blade 320 : Lower cutting blade 330 : Cutting blade guard

Claims

Claim 1 A pruning machine comprises: a support frame consisting of a support having a certain length, a wheel provided at the lower part of the support to move along a groove, a handle provided at the upper part of the support, and a drive mounting part mounted on the support to be able to move up and down and rotate; a drive mounting part consisting of a lifting fixing member into which the support is fitted to move up and down along the support, and an engine mounting member connected to the front of the lifting fixing member to adjust the left and right horizontal angles; and a cutting blade part mounted on the drive mounting part and moving linearly in mutually opposite directions according to the driving of the engine;The drive unit mounted on the drive mounting part is composed of a drive engine and a drive gear unit driven by the drive engine, and the drive gear unit is configured inside the drive case, and the drive case is composed of a lower drive case and an upper drive case, and the upper and lower drive cases have a cam gear mounting hole for a double drive cam gear formed therein, and guide rails formed of a certain length are formed on both sides of the cam gear mounting hole to guide the linear reciprocating motion of the movable bar, and two or more travel distance limiting holes are formed in the guide rails to limit the operating distance of the movable bar, and guide protrusions are engaged through linear guide grooves, and the drive gear unit is composed of a drive gear that rotates by receiving power from the drive engine, a double drive cam gear that rotates in mesh with the drive gear, a drive cam provided on both upper and lower sides that rotates by the double drive cam gear, and a movable bar axially connected to one end of the drive cam, and the double drive cam gear has a cam driving hole that allows the drive cam to be fitted and rotated at an eccentric position from the center. A gear cam simplified type, an integrated blade type without a cutting blind spot, and a cutting machine with easy blade replacement, characterized by being formed such that the drive cam is fitted into the cam movable hole and passes through the moving drive cam gear to form a shaft connecting the drive cams on both sides, one end connected to the drive cam is seated on a guide rail and a cutting blade is attached to the bent tip end, the movable bar has a linear guide groove formed therein so that a guide projection of the cage is fitted therein to enable linear reciprocating motion, and the cutting blade part is composed of an upper cutting blade and a lower cutting blade, configured to move in mutually opposite directions as the movable bar is moved left and right to perform cutting. Claim 2 In claim 1, the support member has fastening holes formed at equal intervals on one surface to allow height adjustment of the drive unit, and the lifting fixing member is configured to be fixed after height adjustment by fastening to the fastening holes of the support member through a height fixing bolt, characterized by a gear cam simplified type, an integrated blade type without cutting blind spots, and a cutting tool with easy blade replacement. Claim 3 In claim 1, the engine mounting member is composed of a rotary fastening plate that is axially connected to a lifting fixing member and an engine fastening plate on which the engine is fixedly installed, and the rotary fastening plate is configured to be fixed to the lifting fixing member with a horizontal fixing bolt by forming a rotation angle adjustment hole penetrating in an arc. This characterizes an integrated blade type with no cutting blind spots and a cutting tool with an easy blade replacement method using a simplified gear cam method.

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