CN107322708B - Board right-angle cutting device - Google Patents
Board right-angle cutting device Download PDFInfo
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- CN107322708B CN107322708B CN201710732948.XA CN201710732948A CN107322708B CN 107322708 B CN107322708 B CN 107322708B CN 201710732948 A CN201710732948 A CN 201710732948A CN 107322708 B CN107322708 B CN 107322708B
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- cutting tool
- angle cutting
- drill bit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
- B27C9/00—Multi-purpose machines; Universal machines; Equipment therefor
- B27C9/02—Multi-purpose machines; Universal machines; Equipment therefor with a single working spindle
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- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Milling, Drilling, And Turning Of Wood (AREA)
Abstract
The invention discloses a board right-angle cutting device which comprises a cutting tool mechanism, a cutting tool driving mechanism, a cutting tool fixing device and a device shell, wherein the cutting tool mechanism consists of bricks and a right-angle cutting tool, the cutting tool driving mechanism consists of a motor, a drill bit driving cone pulley, a drill bit driven cone pulley, a right-angle cutting tool driving rod, a right-angle cutting tool driving crankshaft, a right-angle cutting tool driving fixing support and a motor output shaft, and the right-angle cutting tool driving crankshaft is connected with the right-angle cutting tool driving rod to push and pull the right-angle cutting tool to cut a board. According to the wood board right-angle cutting device provided by the invention, the drilling of the drill bit on the wood board is firstly realized, and then the right-angle cutting is carried out on the wood board through the vertical motion of the right-angle cutting tool.
Description
Technical Field
The invention relates to the field of tool machinery, in particular to a board right-angle cutting device.
Background
With the improvement of living standard of people, the requirements on the shape and the aesthetic property of decorations, furniture, ornaments and the like are higher and higher, and the condition of wood board right angle cutting is related to the decorations, the furniture, the ornaments and the like, a common worker processing method is to cut one side by using a cutting tool and then cut the other side by using the same method. Therefore, the right-angle cutting device which can meet the design requirements of right-angle cutting and has an attractive appearance after cutting has very important practical significance for the lack of the wood board right-angle cutting tool at present.
Disclosure of Invention
The invention provides a board right-angle cutting device, aiming at solving the problems that in the prior art, the board right-angle cutting yield is low, the waste is caused in the product processing process, the operation is complex, the appearance after processing is poor, a cutting tool is easy to break in the vertical cutting process, the cutting angle is not consistent, and the design requirements can be met.
In order to achieve the purpose, the invention adopts the technical scheme that:
a plank right angle cutting device, it is made up of cutting tool mechanism, cutting tool driving mechanism, cutting tool fixing device, device shell mechanism, the cutting tool mechanism is made up of bit, right angle cutting tool, the cutting tool driving mechanism is made up of electrical machinery, bit initiative taper wheel, bit driven taper wheel, right angle cutting tool driving pole, right angle cutting tool driving crankshaft, right angle cutting tool driving fixed bolster, electrical machinery output shaft through driving bit initiative taper wheel rotary motion, bit initiative taper wheel, bit driven taper wheel connect and engage, bit initiative taper wheel and bit driven taper wheel change the direction of rotation and drive bit driven taper wheel rotary motion, bit is connected with bit on the bit driven taper wheel, bit rotation punches plank, electrical machinery output shaft rotate and drive it with the coaxial connected right angle cutting tool driving crankshaft motion, the right-angle cutting tool drives the crankshaft to drive the right-angle cutting tool driving rod connected with the crankshaft to reciprocate up and down, the tail end of the right-angle cutting tool driving rod is nested with a right-angle cutting tool driving connecting support connected with the right-angle cutting tool, the right-angle cutting tool driving rod pushes or pulls the right-angle cutting tool to reciprocate up and down to cut a wood board at a right angle, the device shell mechanism comprises a device shell, a device shell cover plate and a cover plate connecting screw, the device comprises an operating handle, wherein the operating handle is used for controlling the working operation of the device by a worker, a cover plate connecting screw is used for connecting a device shell and a device shell cover plate into a whole, a cutting tool fixing device comprises a right-angle cutting tool moving and fixing guide plate, the right-angle cutting tool moving and fixing guide plate controls the moving direction of the right-angle cutting tool, the right-angle cutting tool is made of low-alloy cutting tool steel, and the arrangement mode of right-angle cutting tool sawteeth is standard sawteeth arrangement.
Furthermore, be connected with three restriction drill bit direction of motion, improve the drill bit structural strength's drill bit solid fixed ring on the right angle cutting tool, drill bit solid fixed ring moves along the drill bit up-and-down.
Further, the right angle cutter moves the gap of the fixed guide plate through the right angle cutter and moves up and down under the fixed restriction of the right angle cutter moving the fixed guide plate.
Furthermore, the output shaft of the motor is connected with a drill bit driving cone pulley, the drill bit driving cone pulley is meshed with a drill bit driven cone pulley connected with a drill bit, and the rotation of the output shaft of the motor can drive the drill bit to rotate.
Furthermore, the motor is connected to the motor support, the motor support is fixedly connected with the motor support plate, and the tail end of the motor support is fixedly connected with the right-angle cutting tool moving and fixing guide plate.
Furthermore, the lower part of the inside of the device shell is connected with a right-angle cutting tool moving and fixing guide plate, the device shell is connected with a cover plate of the device shell into a whole through a cover plate connecting screw, and a power switch and a motor power line for electrifying the motor are arranged on the side surface of the device shell.
Furthermore, an operating handle for operating and working by workers is connected to the cover plate of the device shell.
Furthermore, the right-angle cutting tool adopts low-alloy cutting tool steel, the alloy elements comprise Cr, Mn, Si, W and the like, the carbon content is 0.9-1%, the Mn content is 0.3-0.6%, the Si content is 1.3-1.7%, and the W content is 4.4-5.4%, and the right-angle cutting tool adopts the quenching temperature of 860-880 ℃ and the tempering temperature of 180-200 ℃ in production.
Furthermore, the arrangement mode of the sawteeth of the right-angle cutting tool is standard sawteeth arrangement.
Furthermore, the sawtooth distance of the right-angle cutting tool is 4mm, the sawtooth depth is 1.6mm, and the sawtooth arc radius is 0.6 mm.
Compared with the prior art, the invention has the following advantages:
a plank right angle cutting device, it is made up of cutting tool mechanism, cutting tool driving mechanism, cutting tool fixing device, device shell mechanism, the cutting tool mechanism is made up of bit, right angle cutting tool, the cutting tool driving mechanism is made up of electrical machinery, bit initiative taper wheel, bit driven taper wheel, right angle cutting tool driving pole, right angle cutting tool driving crankshaft, right angle cutting tool driving fixed bolster, electrical machinery output shaft through driving bit initiative taper wheel rotary motion, bit initiative taper wheel, bit driven taper wheel connect and engage, bit initiative taper wheel and bit driven taper wheel change the direction of rotation and drive bit driven taper wheel rotary motion, bit is connected with bit on the bit driven taper wheel, bit rotation punches plank, electrical machinery output shaft rotate and drive it with the coaxial connected right angle cutting tool driving crankshaft motion, the right-angle cutting tool driving crankshaft drives a right-angle cutting tool driving rod connected with the right-angle cutting tool driving crankshaft to reciprocate up and down, the tail end of the right-angle cutting tool driving rod is nested with a right-angle cutting tool driving connecting support connected with the right-angle cutting tool, the right-angle cutting tool driving rod pushes or pulls the right-angle cutting tool to reciprocate up and down to cut a wood board, the device shell mechanism comprises a device shell, a device shell cover plate, a cover plate connecting screw and an operating handle, the operating handle is used for controlling the working operation of a device by workers, the cover plate connecting screw enables the device shell to be connected with the device shell cover plate into a whole, the cutting tool fixing device comprises a right-angle cutting tool moving and fixing guide plate, the right-angle cutting tool moving and fixing guide plate controls the motion direction of the right-angle cutting tool, the right-angle cutting tool is made of low-alloy cutting tool steel, and the carbon content is 0.9% -1%, The Mn content is 0.3% -0.6%, so that the right-angle cutting tool has high hardness, the Si content is 1.3% -1.7%, the right-angle cutting tool has high heat resistance and elastic limit, and the W content is 4.4% -5.4%, so that the strength and toughness of the right-angle cutting tool are improved. According to the wood board right-angle cutting device provided by the invention, the drilling of the drill bit on the wood board is firstly realized, and then the right-angle cutting is carried out on the wood board through the vertical motion of the right-angle cutting tool.
Drawings
FIG. 1 is a schematic perspective view of the present invention without the device housing;
FIG. 2 is a perspective space view of the relevant parts of the housing of the device of the present invention;
FIG. 3 is a schematic perspective view of the crankshaft and motor output shaft of the present invention;
FIG. 4 is a perspective space schematic view of the right angle cutting tool of the present invention;
FIG. 5 is a perspective view of the housing components of the device of the present invention;
FIG. 6 is a schematic perspective view in half section of the housing and guide plate of the present invention;
FIG. 7 is a schematic view of the parameters of the right angle cutting tool teeth of the present invention;
wherein, 1-a drill bit; 2-right angle cutting tools; 3-a drill bit fixing ring; 4-the right-angle cutting tool moves the fixed guide plate; 5-the right-angle cutting tool is driven to be connected with the bracket; 6-right angle cutting tool drive bar; 7-a drill driven cone pulley; 8-a drill driving cone pulley; 9-right angle cutting tool drives crankshaft; 10-motor output shaft; 11-a motor support; 12-a motor; 13-a motor support plate; 14-motor power line; 15-cover plate connecting screw; 16-an operating handle; 17-a power switch; 18-a device housing; 19-device housing cover plate.
Detailed Description
The present invention will be further described with reference to the following examples.
As shown in fig. 1, a plank right angle cutting device, which comprises a cutting tool mechanism, a cutting tool driving mechanism, a cutting tool fixing device and a device shell mechanism, wherein the cutting tool mechanism comprises a drill bit 1 and a right angle cutting tool 2, the cutting tool driving mechanism comprises a motor 12, a drill bit driving cone pulley 8, a drill bit driven cone pulley 7, a right angle cutting tool driving rod 6, a right angle cutting tool driving crankshaft 9, a right angle cutting tool driving fixing bracket 5 and a motor output shaft 10, the motor output shaft 10 drives the drill bit driving cone pulley 8 to rotate, the drill bit driving cone pulley 8 and the drill bit driven cone pulley 7 are connected and meshed, so that the rotation direction is changed by the drill bit driving cone pulley 8 and the drill bit driven cone pulley 7 to rotate, the drill bit 1 is connected with the drill bit driven cone pulley 7, the drill bit 1 rotates to punch a plank, the motor output shaft 10 rotates to drive the right angle cutting tool driving crankshaft 9 which is coaxially connected with the drill bit driving cone pulley 9 to move, the right-angle cutting tool drives the crankshaft 9 to drive the right-angle cutting tool driving rod 6 connected with the crankshaft to reciprocate up and down, the tail end of the right-angle cutting tool driving rod 6 is nested with the right-angle cutting tool driving connecting support 5 connected with the right-angle cutting tool 2, the right-angle cutting tool driving rod 6 pushes or pulls the right-angle cutting tool 2 to reciprocate up and down to cut a wood board at right angle, the device shell mechanism comprises a device shell 18, a device shell cover plate 19, a cover plate connecting screw 15 and an operating handle 16, the operating handle 16 is used for controlling the device to work by a worker, the cover plate connecting screw 15 enables the device shell 18 and the device shell cover plate 19 to be connected into a whole, the cutting tool fixing device comprises a right-angle cutting tool moving and fixing guide plate 4, the right-angle cutting tool moving and fixing guide plate 4 controls the moving direction of the right-angle cutting tool 2, firstly, the worker operates the operating handle 16, switch on 17 switch and supply power for motor 12, motor 12 rotates and drives 1 rotary motion of drill bit and drills to the plank, through pushing away operating handle 16 downwards, makes the integrated device downstream, and 2 up-and-down motion of right angle cutting tool that are driven by motor 12 carry out the right angle cutting to the plank, and after the right angle cutting was accomplished, operation integrated device moved upwards, accomplished whole right angle cutting process, and after the right angle cutting was accomplished, the processing was handled to the plank to other material processing instrument of rethread.
The invention does not limit the size, shape and model of the motor, and only needs to satisfy the normal work of the whole device.
The working principle of the invention is as follows:
an operator operates the operating handle 16, a power switch 17 is turned on, electric energy is supplied to the motor 12 through a motor power line 14, the motor 12 rotates to drive a motor output shaft 10 to rotate, the motor output shaft 10 is connected with a right-angle cutting tool driving crankshaft 9, the tail end of the motor output shaft 10 is connected with a drill driving cone pulley 8, the rotating motion of the motor output shaft 10 can drive the right-angle cutting tool driving crankshaft 9 to rotate, the right-angle cutting tool driving crankshaft 9 is connected with a right-angle cutting tool driving rod 6 of which the tail end is connected with a right-angle cutting tool driving connecting support 5, the right-angle cutting tool driving connecting support 5 and the right-angle cutting tool 2 are connected into a whole, so that the right-angle cutting tool driving crankshaft 9 drives the right-angle cutting tool 2 to reciprocate up and down, the drill driving cone pulley 8 is meshed with a drill driven cone pulley 7 connected with the drill 2, and the rotating motion of the motor output shaft 20 can drive the drill 1 to rotate, right angle cutting tool 2 passes through right angle cutting tool and removes fixed deflector 4, and right angle cutting tool removes fixed deflector 4 and plays the effect of strengthening and leading to right angle cutting tool 2, and the staff operates operating handle 16 and makes the integrated device upward movement after the right angle cutting is accomplished, accomplishes work, and follow-up further processing is carried out the material through other processing tools. This device begins to punch the plank through drill bit 1 earlier, and rethread pushes operating handle 16 downwards and carries out the right angle cutting, and the great cutting right angle limit distance of the degree of depth that promotes is longer, and this device increases the processing yield of plank material, and it is handsome in appearance after the cutting.
Example 1
As shown in fig. 1, a plank right angle cutting device comprises a cutting tool mechanism, a cutting tool driving mechanism, a cutting tool fixing device and a device shell mechanism, wherein the cutting tool mechanism comprises a drill bit 1 and a right angle cutting tool 2, the cutting tool driving mechanism comprises a motor 12, a drill bit driving cone pulley 8, a drill bit driven cone pulley 7, a right angle cutting tool driving rod 6, a right angle cutting tool driving crankshaft 9, a right angle cutting tool driving fixing bracket 5 and a motor output shaft 10, the motor output shaft 10 drives the drill bit driving cone pulley 8 to rotate, the drill bit driving cone pulley 8 and the drill bit driven cone pulley 7 are connected and meshed, the drill bit driving cone pulley 8 and the drill bit driven cone pulley 7 change the rotating direction and drive the drill bit driven cone pulley 7 to rotate, the drill bit 1 is connected with the drill bit driven cone pulley 7, the drill bit 1 rotates to punch a plank, the motor output shaft 10 rotates to drive the right angle cutting tool driving crankshaft 9 coaxially connected with the motor output shaft to move, the right-angle cutting tool drives the crankshaft 9 to drive the right-angle cutting tool driving rod 6 connected with the crankshaft to reciprocate up and down, the tail end of the right-angle cutting tool driving rod 6 is nested with the right-angle cutting tool driving connecting support 5 connected with the right-angle cutting tool 2, the right-angle cutting tool driving rod 6 pushes or pulls the right-angle cutting tool 2 to reciprocate up and down to cut a wood board at right angle, the device shell mechanism comprises a device shell 18, a device shell cover plate 19, a cover plate connecting screw 15 and an operating handle 16, the operating handle 16 is used for controlling the device to work by a worker, the cover plate connecting screw 15 enables the device shell 18 and the device shell cover plate 19 to be connected into a whole, the cutting tool fixing device comprises a right-angle cutting tool moving and fixing guide plate 4, the right-angle cutting tool moving and fixing guide plate 4 controls the moving direction of the right-angle cutting tool 2, firstly, the worker operates the operating handle 16, switch 17 is turned on and the power is supplied to motor 12, and motor 12 rotates and drives 1 rotary motion of drill bit and drill to the plank, and through pushing operation handle 16 downwards, make the integrated device downstream, the right angle cutting tool 2 up-and-down motion that is driven by motor 12 carries out the right angle cutting to the plank, and after the right angle cutting was accomplished, operation integrated device moved upwards, accomplished whole right angle cutting process, and after the right angle cutting was accomplished, the processing was handled to the plank to other material processing instrument of rethread.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention, and such modifications and adaptations are intended to be within the scope of the invention.
Claims (9)
1. A plank right angle cutting device, by cutting tool mechanism, cutting tool actuating mechanism, cutting tool fixing device, device shell mechanism is formed, cutting tool mechanism includes drill bit (1), right angle cutting tool (2), cutting tool actuating mechanism includes motor (12), drill bit initiative cone pulley (8), drill bit driven cone pulley (7), right angle cutting tool actuating lever (6), right angle cutting tool driving crankshaft (9), right angle cutting tool driving fixed support (5), motor output shaft (10) through driving drill bit initiative cone pulley (8) rotary motion, drill bit initiative cone pulley (8), drill bit driven cone pulley (7) connect and mesh, drill bit initiative cone pulley (8) and drill bit driven cone pulley (7) change the direction of rotation and drive drill bit driven cone pulley (7) rotary motion, connect drill bit (1) on drill bit driven cone pulley (7), the wood board punching device comprises a drill bit (1) which rotates to punch a wood board, a motor output shaft (10) which rotates to drive a right-angle cutting tool which is coaxially connected with the motor output shaft to drive a crankshaft (9) to move, the right-angle cutting tool drive crankshaft (9) drives a right-angle cutting tool drive rod (6) which is connected with the right-angle cutting tool to reciprocate up and down, a right-angle cutting tool drive connecting support (5) which is connected with a right-angle cutting tool (2) is nested at the tail end of the right-angle cutting tool drive rod (6), the right-angle cutting tool drive rod (6) pushes or pulls the right-angle cutting tool (2) to reciprocate up and down to cut the wood board at a right angle, a device shell mechanism comprises a device shell (18), a device shell cover plate (19), cover plate connecting screws (15) and an operating handle (16), the cover plate connecting screws (15) enable the device shell (18) and the device shell cover plate (19) to be connected into a whole, a cutting tool fixing device comprises a right-angle cutting tool moving and fixing guide plate (4), the right-angle cutting tool moves the direction of motion of fixed deflector (4) control right-angle cutting tool, and right-angle cutting tool (2) material adopts low alloy cutting tool steel, and the arrangement mode of right-angle cutting tool (2) sawtooth is standard sawtooth range.
2. The right-angle cutting device for wood boards according to claim 1, wherein three drill bit fixing rings (3) which limit the movement direction of the drill bit (1) and improve the structural strength of the drill bit are connected to the right-angle cutting tool (1), and the drill bit fixing rings (3) move up and down along the drill bit (1).
3. A quarter cutting device for wood boards according to claim 1 characterized in that the quarter cutter (2) moves up and down through the slits of the fixed guide plate (4) by the quarter cutter and under the fixed limit of the fixed guide plate (4) by the quarter cutter.
4. A board right-angle cutting device according to claim 1, characterized in that the motor output shaft (10) is connected with a drill driving cone pulley (8), the drill driving cone pulley (8) is meshed with a drill driven cone pulley (7) connected with the drill (1), and the motor output shaft (10) rotates to drive the drill (1) to rotate.
5. The right-angle cutting device for wood boards according to claim 1, wherein the motor (12) is connected to a motor support (11), the motor support (11) is fixedly connected through a motor support plate (13), and the tail end of the motor support (11) is fixedly connected with the right-angle cutting tool moving and fixing guide plate (4).
6. A board right-angle cutting device according to claim 1, characterized in that a right-angle cutting tool moving fixing guide plate (4) is connected to the lower part of the inner side of the device shell (18), the device shell is connected with a device shell cover plate (19) into a whole through a cover plate connecting screw (15), and a power switch (17) and a motor power supply wire (14) for energizing the motor (12) are arranged on the side surface of the device shell (19).
7. A quarter cutting device for wood boards according to claim 1 characterised in that the device housing cover plate (19) is connected with an operating handle (16) for the operator to operate.
8. The board right-angle cutting device according to claim 1, wherein the right-angle cutting tool (2) is made of low-alloy cutting tool steel, the alloy elements are Cr, Mn, Si, W and the like, the carbon content is 0.9% -1%, the Mn content is 0.3% -0.6%, the Si content is 1.3% -1.7%, and the W content is 4.4% -5.4%, and the right-angle cutting tool (2) is quenched at 860 ℃ -880 ℃ and tempered at 180 ℃ -200 ℃ in production.
9. A board square cutting device according to claim 1, characterized in that the square cutting tool (2) has a saw tooth distance of 4mm, a saw tooth depth of 1.6mm and a saw tooth circular arc radius of 0.6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710732948.XA CN107322708B (en) | 2017-08-23 | 2017-08-23 | Board right-angle cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710732948.XA CN107322708B (en) | 2017-08-23 | 2017-08-23 | Board right-angle cutting device |
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| Publication Number | Publication Date |
|---|---|
| CN107322708A CN107322708A (en) | 2017-11-07 |
| CN107322708B true CN107322708B (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710732948.XA Active CN107322708B (en) | 2017-08-23 | 2017-08-23 | Board right-angle cutting device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112643803A (en) * | 2021-01-14 | 2021-04-13 | 张化兴 | Promotion formula timber perforating device |
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|---|---|---|---|---|
| GB1337012A (en) * | 1970-02-09 | 1973-11-14 | Gerber Garment Technology Inc | Apparatus for cutting and notching sheet material |
| DE3533757A1 (en) * | 1985-09-21 | 1987-04-02 | Klaus Mueller | Twin mitre cutter |
| JPH11156786A (en) * | 1997-11-26 | 1999-06-15 | Nippon Chuushin Hanbai Kk | Manufacture of buffer member made of paper multivesicular laminated plate and device thereof |
| JP2001257221A (en) * | 2000-03-10 | 2001-09-21 | Murata Mfg Co Ltd | Method of manufacturing electronic device |
| CN202964793U (en) * | 2012-12-25 | 2013-06-05 | 陈文学 | Wooden triangle automatic cutting machine |
| CN105230220A (en) * | 2015-11-16 | 2016-01-13 | 孙逸菲 | Radix angelicae pubescentis excavating and cutting treatment machine |
| CN206028884U (en) * | 2016-06-08 | 2017-03-22 | 乐山市沙湾区金山机械制造有限责任公司 | Cut saw |
-
2017
- 2017-08-23 CN CN201710732948.XA patent/CN107322708B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1337012A (en) * | 1970-02-09 | 1973-11-14 | Gerber Garment Technology Inc | Apparatus for cutting and notching sheet material |
| DE3533757A1 (en) * | 1985-09-21 | 1987-04-02 | Klaus Mueller | Twin mitre cutter |
| JPH11156786A (en) * | 1997-11-26 | 1999-06-15 | Nippon Chuushin Hanbai Kk | Manufacture of buffer member made of paper multivesicular laminated plate and device thereof |
| JP2001257221A (en) * | 2000-03-10 | 2001-09-21 | Murata Mfg Co Ltd | Method of manufacturing electronic device |
| CN202964793U (en) * | 2012-12-25 | 2013-06-05 | 陈文学 | Wooden triangle automatic cutting machine |
| CN105230220A (en) * | 2015-11-16 | 2016-01-13 | 孙逸菲 | Radix angelicae pubescentis excavating and cutting treatment machine |
| CN206028884U (en) * | 2016-06-08 | 2017-03-22 | 乐山市沙湾区金山机械制造有限责任公司 | Cut saw |
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| CN107322708A (en) | 2017-11-07 |
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