CN113752340A

CN113752340A - Plywood cutting system clamped by using translation

Info

Publication number: CN113752340A
Application number: CN202111083297.9A
Authority: CN
Inventors: 王世江
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2021-12-07

Abstract

The invention belongs to the field of plywood, and relates to a plywood cutting system clamped by using translation. When the plywood is cut, the cutting device can be controlled to move left and right in the horizontal direction through the adjusting device, the cutting device is adjusted to reach different cutting widths, the required cutting width of the plywood is realized, the cutting requirement of the plywood in one direction can be met through one-time cutting, and meanwhile, the waste collecting device can reasonably collect cutting waste, reduce environmental pollution and improve cutting precision.

Description

Plywood cutting system clamped by using translation

Technical Field

The invention belongs to the field of plywood, and particularly relates to a plywood cutting system clamped by using translation.

Background

Plywood is a three-layer or multi-layer plate material made up by using wood segments and making them be rotary-cut into single board or sliced into thin wood and using adhesive to make them be glued together, and usually using odd number of layers of single board and making the fibre directions of adjacent layers of single board be mutually perpendicular. The plywood is one of common furniture materials, is one of three large plates of an artificial plate, and can also be used as a material for airplanes, ships, trains, automobiles, buildings, packing boxes and the like. Plywood is adding man-hour in production often need cut into one section with it to facilitate the use, and the design of most as an organic whole of current plywood cutting means, and its interval of cutting between the blade can't be adjusted, and this makes the panel width of cutting out can only be for fixed size to can't satisfy different demands, consequently the urgent need improves it.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a plywood cutting system clamped by translation.

The purpose of the invention can be realized by the following technical scheme: a plywood cutting system clamped by using translation comprises a shell, wherein a lifting hydraulic cylinder is fixedly arranged at the top of the shell, the output end of the lifting hydraulic cylinder is provided with a lifting rod, the lower end of the lifting rod extends into the upper part of the inner cavity of the shell, the upper part of the inner cavity of the shell is provided with a lifting device which is used for controlling a cutting device of the control equipment to move up and down, the lower side of the lifting device is provided with an adjusting device which is used for controlling the horizontal movement and fixation of a cutting device of the equipment, the cutting device is fixedly arranged at the lower side of the adjusting device and is used for cutting the plywood, the middle part of the inner cavity of the shell is fixedly provided with a clamping device which is used for clamping the plywood so as to be convenient for accurately cutting the plywood, the clamping device downside is equipped with garbage collection device, garbage collection device is used for collecting the waste material after the cutting.

Preferably, elevating gear includes hydraulic cylinder, the fixed lifter plate that is equipped with of lifter lower extreme that hydraulic cylinder output was equipped with, the fixed gear connecting rod that is equipped with of lifter plate left and right bilateral symmetry, the last rotation of gear connecting rod is equipped with the gear, the fixed rack that is equipped with on the lateral wall of casing inner chamber upper portion, the rack with the gear meshes mutually, elevating gear is used for control cutting device reciprocates, accomplishes the cutting to the plywood of different thickness.

Preferably, adjusting device is including fixed the setting the constant head tank of lifter plate downside, the fixed adjusting hydraulic cylinder that is equipped with of lifter plate left and right ends downside symmetry, it is equipped with the electro-magnet to adjust the hydraulic cylinder output, the fixed block that is equipped with on the electro-magnet, the fixed spring groove that is equipped with of fixed block upper left side, the spring groove bottom is equipped with the electro-magnet, the fixed positioning spring that is equipped with on the electro-magnet, the fixed navigation key that is equipped with of the inside upside of positioning spring, the inside upside of navigation key stretch into to inside the constant head tank, adjusting device is used for control the plywood of realization to different widths is cut to the removal about cutting device horizontal direction.

Preferably, cutting device is including fixed the setting the cutting motor of fixed block downside, the cutting motor output is equipped with the cutting axle, the epaxial fixed cutter that is equipped with of cutting, cutting device bilateral symmetry is provided with two for accomplish the cutting to the plywood of required width when once cutting.

Preferably, the clamping device comprises a clamping hydraulic cylinder fixedly arranged on the rear side wall of the middle part of the inner cavity of the shell, a connecting rod fixing rod is fixedly arranged on one side of the output end of the clamping hydraulic cylinder, the connecting rod fixing rod is fixedly arranged on the side wall of the shell, a clamping shaft is arranged at the output end of the clamping hydraulic cylinder, the clamping shaft extends into a cavity enclosed by the connecting rod fixing rod, a clamping slide rod is fixedly arranged on the clamping shaft, clamping slide blocks are symmetrically arranged on the left side and the right side of the clamping slide rod in a sliding manner, slide grooves are symmetrically arranged on the left side and the right side of the front end of the connecting rod fixing rod, clamping rods are slidably arranged in the slide grooves, a second connecting rod is connected between the clamping slide blocks and the connecting rod fixing rod, a first connecting rod is connected between the clamping rods and the clamping slide blocks, clamping blocks are symmetrically fixedly arranged on the left side and the right side of the front end of the clamping rods, and clamping gaskets are fixedly arranged on the clamping blocks, clamping device is used for pressing from both sides tight plywood, and the cutting device of being convenient for carries out accurate cutting to the plywood.

Preferably, the waste collecting device comprises a supporting plate fixedly arranged on the lower side of the clamping device, a plurality of waste through holes are fixedly arranged on the supporting plate and used for closing the cutter and enabling cutting scraps to pass through, turnover plates are symmetrically arranged on the left side and the right side of the supporting plate, a plurality of waste through holes are arranged on the turnover plates, a hinge block is fixedly arranged on the lower side of the turnover plates, a slide rod is rotatably connected onto the hinge block, a telescopic rod is slidably arranged on the lower side of the slide rod, the lower end of the telescopic rod is fixed on the lower side wall of the inner cavity of the shell, a fixed plate is fixedly arranged on the lower side wall of the inner cavity of the shell, a waste cylinder is fixedly arranged in the middle of the fixed plate, a discharge port is fixedly arranged on the lower side of the waste cylinder, an air pump is fixedly arranged on the upper side of the fixed plate outside the lower left portion of the waste cylinder, and an air pipe is fixedly arranged at the output end of the air pump, the trachea stretch into to in the waste material jar inner chamber, the trachea with the fixed connecting block that is equipped with of waste material jar junction, be equipped with the recess on the connecting block inside wall, the recess internal fixation be equipped with the filter screen, garbage collection device is used for collecting the piece that the cutting produced and the collection of side cut waste material.

When the plywood needs to be cut, the plywood needing to be cut is placed on the supporting plate through external feeding equipment, the clamping device is started, the clamping hydraulic cylinder is started to drive the clamping shaft to move forwards, the clamping shaft moves to drive the clamping slide bar to move forwards, the clamping slide bar moves to drive the clamping slide block to move forwards, meanwhile, the second connecting rod acts to slide towards the inner direction of the clamping slide bar, the clamping slide block slides to drive the first connecting rod to move towards the center, the first connecting rod moves to drive the clamping rod to move towards the center, the clamping block is further driven to be fixed towards the center, the clamping block drives the clamping gasket to move so as to clamp the plywood, after the plywood is clamped, the adjusting device is started, the electromagnet is powered on at the moment, the positioning key is driven to move downwards to separate from the positioning groove, the adjusting hydraulic cylinder is started to drive the electromagnet to move to the left and right to the required position, and the electromagnet is powered off, the positioning key moves upwards under the action of the positioning spring and extends into the positioning groove to complete the adjustment of the cutting width of the cutting device in the horizontal direction, at the moment, the cutting device is started, the cutting motor is started to drive the cutting shaft to rotate, and the cutting shaft rotates to drive the cutter to rotate.

Further elevating gear starts, and hydraulic cylinder starts and drives the lifter downstream, and the lifter downstream drives the lifter plate downstream, and the lifter plate motion drives gear connecting rod motion, and gear connecting rod motion drives gear and rotates, and then makes cutting device move down, carries out the cutting to the plywood. When cutting the plywood, garbage collection device starts, the aspiration pump starts to make inside suction that produces through the trachea, the piece is inhaled inside through the waste material via hole during the cutting, clamping device starts after the cutting is accomplished, drive the tight axle of clamp and remove backward, and then drive the tight gasket of clamp and remove and loosen the plywood to the center outside, cutting device stops, elevating gear starts cutting device lifting to suitable position, the telescopic link starts to drive the slide bar that descends this moment, the slide bar drives the returning face plate through articulated piece and removes inside simultaneously to the outside, make the waste material of cutting off enter into inside through the electro-magnet, and outside collecting device is collected to the accessible discharge gate, the cutting to the plywood of different thickness width demands can be realized to circulation above-mentioned step.

Compared with the prior art, the plywood cutting system clamped by using translation has the following advantages:

1. be equipped with adjusting device can the required cutting width of automatically regulated, realize the cutting to the plywood of different cutting width demands, cutting device locates two, and the cutting of required width can be accomplished to once cutting, has improved the efficiency of cutting.

2. The clamping device is designed in a translational clamping mode, accurate positioning of the plywood is guaranteed due to the symmetrical arrangement, and cutting precision is improved.

3. Through garbage collection device, in time clear away the produced saw-dust among the cutting process to after the cutting is accomplished, collect the cutting clout, reduce environmental pollution, improve cutting accuracy, avoid the cutter card to die.

Drawings

Fig. 1 is a schematic view of a plywood cutting apparatus.

Fig. 2 is a sectional view taken along a line a-a in fig. 1.

Fig. 3 is an enlarged view of the structure at B in fig. 1.

Fig. 4 is an enlarged view of the structure at C in fig. 1.

Fig. 5 is an enlarged view of the structure at D in fig. 1.

In the figure, 10, the housing; 11. a discharge port; 12. a fixing plate; 13. a telescopic rod; 14. an air pump; 15. a slide bar; 16. a turnover plate; 17. a clamping lever; 18. a rack; 19. adjusting a hydraulic cylinder; 20. a gear; 21. a gear link; 22. a lifting rod; 23. a lifting hydraulic cylinder; 24. a cutter; 25. cutting the shaft; 26. cutting the motor; 27. plywood; 28. clamping a hydraulic cylinder; 29. a clamping shaft; 30. clamping the sliding block; 31. clamping the sliding rod; 32. a first link; 33. a second link; 34. a connecting rod fixing rod; 35. clamping the gasket; 36. a clamping block; 37. a lifting plate; 38. positioning a groove; 39. a positioning key; 40. a positioning spring; 41. an electromagnet; 42. a fixed block; 43. a waste vat; 44. connecting blocks; 45. an air tube; 46. filtering with a screen; 47. a waste via; 48. a hinged block; 49. a support plate; 50. a feed inlet; 51. an electromagnet.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2, 3, 4 and 5, a plywood cutting system clamped by using translation includes a housing 10, a lifting cylinder 23 is fixedly arranged at the top of the housing 10, a lifting rod 22 is arranged at the output end of the lifting cylinder 23, the lower end of the lifting rod 22 extends into the upper portion of an inner cavity of the housing 10, a lifting device is arranged at the upper portion of the inner cavity of the housing 10, the lifting device is used for controlling a cutting device for controlling equipment to move up and down, an adjusting device is arranged at the lower side of the lifting device, the adjusting device is used for controlling the cutting device of the equipment to move horizontally and be fixed, the cutting device is fixedly arranged at the lower side of the adjusting device, the cutting device is used for cutting plywood, a clamping device is fixedly arranged at the middle portion of the inner cavity of the housing 10, and is used for clamping the plywood so as to accurately cut the plywood, the clamping device downside is equipped with garbage collection device, garbage collection device is used for collecting the waste material after the cutting.

As shown in fig. 1, the lifting device includes a lifting hydraulic cylinder 23, a lifting plate 37 is fixedly arranged at the lower end of a lifting rod 22 arranged at the output end of the lifting hydraulic cylinder 23, gear connecting rods 21 are symmetrically and fixedly arranged at the left and right sides of the lifting plate 37, a gear 20 is rotatably arranged on the gear connecting rod 21, a rack 18 is fixedly arranged on the side wall of the upper part of the inner cavity of the shell 10, the rack 18 is engaged with the gear 20, and the lifting device is used for controlling the up-and-down movement of the cutting device to complete the cutting of plywood with different thicknesses.

As shown in fig. 1 and 3, the adjusting device comprises a positioning groove 38 fixedly arranged on the lower side of the lifting plate 37, adjusting hydraulic cylinders 19 are symmetrically and fixedly arranged on the lower sides of the left and right ends of the lifting plate 37, an electromagnet 41 is arranged at the output end of the adjusting hydraulic cylinder 19, a fixing block 42 is fixedly arranged on the electromagnet 41, a spring groove is fixedly arranged on the upper left side of the fixing block 42, an electromagnet 51 is arranged at the bottom of the spring groove, a positioning spring 40 is fixedly arranged on the electromagnet 51, a positioning key 39 is fixedly arranged on the upper side inside the positioning spring 40, the upper side inside the positioning key 39 extends into the positioning groove 38, and the adjusting device is used for controlling the cutting device to horizontally move to cut plywood with different widths.

As shown in fig. 1, the cutting device includes a cutting motor 26 fixedly disposed on the lower side of the fixing block 42, a cutting shaft 25 is disposed at the output end of the cutting motor 26, a cutter 24 is fixedly disposed on the cutting shaft 25, and two cutting devices are symmetrically disposed in the left-right direction and used for cutting plywood with a required width in one cutting process.

As shown in fig. 1 and 2, the clamping device includes a clamping hydraulic cylinder 28 fixedly disposed on the rear side wall of the middle portion of the inner cavity of the housing 10, a connecting rod fixing rod 34 is fixedly disposed on one side of the output end of the clamping hydraulic cylinder 28, the connecting rod fixing rod 34 is fixedly disposed on the side wall of the housing 10, a clamping shaft 29 is disposed at the output end of the clamping hydraulic cylinder 28, the clamping shaft 29 extends into a cavity enclosed by the connecting rod fixing rod 34, a clamping slide rod 31 is fixedly disposed on the clamping shaft 29, clamping sliders 30 are symmetrically slidably disposed on the left and right sides of the clamping slide rod 31, sliding grooves are symmetrically disposed on the left and right sides of the front end of the connecting rod fixing rod 34, clamping rods 17 are slidably disposed in the sliding grooves, a second connecting rod 33 is connected between the clamping sliders 30 and the connecting rod fixing rod 34, and a first connecting rod 32 is connected between the clamping rods 17 and the clamping sliders 30, the fixed clamp block 36 that is equipped with of clamp bar 17 front end left and right sides symmetry, the fixed clamp gasket 35 that is equipped with on the clamp block 36, clamping device is used for pressing from both sides tight plywood, and the cutting device of being convenient for carries out accurate cutting to the plywood.

As shown in fig. 1, 4 and 5, the waste collecting device includes a supporting plate 49 fixedly disposed at the lower side of the clamping device, a plurality of waste through holes 47 are fixedly disposed on the supporting plate 49, the waste through holes 47 are used for closing the cutting knife 24 and allowing the cutting chips to pass through, turning plates 16 are symmetrically disposed at the left and right sides of the supporting plate 49, a plurality of waste through holes 47 are disposed on the turning plates 16, a hinge block 48 is fixedly disposed at the lower side of the turning plates 16, a slide rod 15 is rotatably connected to the hinge block 48, an expansion link 13 is slidably disposed at the lower side of the slide rod 15, the lower end of the expansion link 13 is fixed on the lower side wall of the inner cavity of the casing 10, a fixing plate 12 is fixedly disposed on the lower side wall of the inner cavity of the casing 10, a waste cylinder 43 is fixedly disposed at the middle part of the fixing plate 12, a discharge hole 11 is fixedly disposed at the lower side of the waste cylinder 43, and an air pump 14 is fixedly disposed at the upper side of the fixing plate 12 outside of the lower left part of the waste cylinder 43, the fixed trachea 45 that is equipped with of aspiration pump 14 output, trachea 45 stretch into to in the waste material jar 43 inner chamber, trachea 45 with the fixed connecting block 44 that is equipped with of waste material jar 43 junction, be equipped with the recess on the connecting block 44 inside wall, the recess internal fixation is equipped with filter screen 46, the garbage collection device is used for collecting the piece that the cutting produced and the collection of the waste material of cutting edge.

When the plywood needs to be cut, the plywood needing to be cut is placed on the supporting plate 49 through external feeding equipment, the clamping device is started, the clamping hydraulic cylinder 28 is started to drive the clamping shaft 29 to move forwards, the clamping shaft 29 moves to drive the clamping slide bar 31 to move forwards, the clamping slide bar 31 moves to drive the clamping slide block 30 to move forwards, meanwhile, the second connecting rod 33 acts to slide towards the inner direction of the clamping slide bar 31, the clamping slide block 30 slides to drive the first connecting rod 32 to move towards the center, the first connecting rod 32 moves to drive the clamping rod 17 to move towards the center, further, the clamping block 36 is driven to move towards the center, the clamping pad 35 is driven by the clamping block 36 to move so as to clamp the plywood, after the plywood is clamped, the adjusting device is started, the electromagnet 51 is powered at the moment, the positioning key 39 is driven to move downwards, the positioning key 39 is separated from the positioning groove 38, the adjusting hydraulic cylinder 19 is started to drive the electromagnet 41 to move leftwards to the required position, the electromagnet 51 is powered off, the positioning key 39 moves upwards to extend into the positioning groove 38 under the action of the positioning spring 40, the adjustment of the horizontal cutting width of the cutting device is completed, at the moment, the cutting device is started, the cutting motor 26 is started to drive the cutting shaft 25 to rotate, and the cutting shaft 25 rotates to drive the cutter 24 to rotate.

Further elevating gear starts, and hydraulic cylinder 23 starts to drive lifter 22 downstream, and lifter 22 downstream drives lifter plate 37 downstream, and lifter plate 37 motion drives gear connecting rod 21 motion, and gear connecting rod 21 motion drives gear 20 and rotates, and then makes cutting device remove downwards, carries out the cutting to the plywood. When the plywood is cut, the waste collecting device is started, the suction pump 14 is started to enable the interior of the plywood 52 to generate suction through the air pipe 45, chips are sucked into the interior of the plywood 52 through the waste through holes 47 during cutting, the clamping device is started after cutting is completed, the clamping shaft 29 is driven to move backwards, the clamping gasket 35 is further driven to move towards the outer side of the center to loosen the plywood, the cutting device stops, the lifting device is started to lift the cutting device to a proper position, the telescopic rod 13 is started to drive the downward sliding rod 15 to slide at the moment, the sliding rod 15 drives the turnover plate 16 to move towards the outer side through the hinged block 48 and rotate inwards, cut waste materials enter the interior of the plywood 52 through the electromagnet 51, external collecting equipment can be collected through the discharge port 11, and the steps can be circulated to cut the plywood with different thickness and width requirements.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A plywood cutting system clamped by utilizing translation comprises a shell (10) and is characterized in that a lifting hydraulic cylinder (23) is fixedly arranged at the top of the shell (10), a lifting rod (22) is arranged at the output end of the lifting hydraulic cylinder (23), the lower end of the lifting rod (22) extends into the upper portion of an inner cavity of the shell (10), a lifting device is arranged at the upper portion of the inner cavity of the shell (10) and used for controlling a cutting device used for controlling equipment to move up and down, an adjusting device is arranged at the lower side of the lifting device and used for controlling the horizontal movement and fixation of the cutting device of the equipment, the cutting device is fixedly arranged at the lower side of the adjusting device and used for cutting plywood, a clamping device is fixedly arranged in the middle of the inner cavity of the shell (10) and used for clamping the plywood so as to accurately cut the plywood, the clamping device downside is equipped with garbage collection device, garbage collection device is used for collecting the waste material after the cutting.

2. A plywood cutting system using translational clamping according to claim 1, wherein: elevating gear includes hydraulic cylinder (23), lifter (22) the lower extreme that hydraulic cylinder (23) output was equipped with is fixed and is equipped with lifter plate (37), lifter plate (37) left and right sides symmetry is fixed and is equipped with gear connecting rod (21), it is equipped with gear (20) to rotate on gear connecting rod (21), it is equipped with rack (18) to fix on casing (10) inner chamber upper portion lateral wall, rack (18) with gear (20) mesh mutually, elevating gear is used for control cutting device reciprocates, accomplishes the cutting to the plywood of different thickness.

3. A plywood cutting system using translational clamping according to claim 2, wherein: adjusting device is including fixed setting up constant head tank (38) of lifter plate (37) downside, the fixed adjusting hydraulic cylinder (19) that is equipped with of end downside symmetry about lifter plate (37), adjusting hydraulic cylinder (19) output is equipped with electro-magnet (41), fixed block (42) that is equipped with on electro-magnet (41), the fixed spring groove that is equipped with of fixed block (42) upper left side, the spring groove bottom is equipped with electro-magnet (51), fixed positioning spring (40) that is equipped with on electro-magnet (51), the fixed navigation key (39) that is equipped with of inside upside of positioning spring (40), the inside upside of navigation key (39) stretch into to inside constant head tank (38), adjusting device is used for control the plywood of the realization to different widths is cut about the cutting device horizontal direction.

4. A plywood cutting system using translational clamping according to claim 3, wherein: cutting device is including fixed setting up cutting motor (26) of fixed block (42) downside, cutting motor (26) output is equipped with cutting axle (25), the fixed cutter (24) that are equipped with on cutting axle (25), cutting device bilateral symmetry is provided with two for accomplish the cutting to the plywood of required width when once cutting.

5. A plywood cutting system using translational clamping according to claim 4, wherein: the clamping device comprises a clamping hydraulic cylinder (28) fixedly arranged on the rear side wall of the middle part of the inner cavity of the shell (10), a connecting rod fixing rod (34) is fixedly arranged on one side of the output end of the clamping hydraulic cylinder (28), the connecting rod fixing rod (34) is fixedly arranged on the side wall of the shell (10), a clamping shaft (29) is arranged at the output end of the clamping hydraulic cylinder (28), the clamping shaft (29) extends into a cavity enclosed by the connecting rod fixing rod (34), a clamping slide rod (31) is fixedly arranged on the clamping shaft (29), clamping sliding blocks (30) are symmetrically arranged on the left side and the right side of the clamping slide rod (31), sliding grooves are symmetrically arranged on the left side and the right side of the front end of the connecting rod fixing rod (34), a clamping rod (17) is arranged in the sliding grooves in a sliding manner, and a second connecting rod (33) is connected between the clamping sliding blocks (30) and the connecting rod fixing rod (34), press from both sides tight pole (17) with it is equipped with first connecting rod (32) to connect between clamping slider (30), press from both sides the fixed tight piece (36) that presss from both sides that is equipped with of tight pole (17) front end left and right sides symmetry, press from both sides and fixedly on the tight piece (36) be equipped with clamping gasket (35), clamping device is used for pressing from both sides tight plywood, and the cutting device of being convenient for carries out accurate cutting to the plywood.

6. A plywood cutting system using translational clamping according to claim 5, wherein: the waste collecting device comprises a supporting plate (49) fixedly arranged on the lower side of the clamping device, a plurality of waste through holes (47) are fixedly arranged on the supporting plate (49), the waste through holes (47) are used for closing the cutter (24) and enabling cutting chips to pass through, the left side and the right side of the supporting plate (49) are symmetrically provided with a turnover plate (16), the turnover plate (16) is provided with a plurality of waste through holes (47), the lower side of the turnover plate (16) is fixedly provided with a hinged block (48), the hinged block (48) is rotatably connected with a sliding rod (15), the lower side of the sliding rod (15) is provided with a telescopic rod (13) in a sliding manner, the lower end of the telescopic rod (13) is fixed on the lower side wall of the inner cavity of the shell (10), the lower side wall of the inner cavity of the shell (10) is fixedly provided with a fixing plate (12), and a waste cylinder (43) is fixedly arranged in the middle of the fixing plate (12), waste cylinder (43) downside is fixed and is equipped with discharge gate (11), waste cylinder (43) left side lower part outside in fixed plate (12) upside is fixed and is equipped with aspiration pump (14), aspiration pump (14) output end is fixed and is equipped with trachea (45), trachea (45) stretch into extremely in waste cylinder (43) inner chamber, trachea (45) with waste cylinder (43) junction is fixed and is equipped with connecting block (44), be equipped with the recess on connecting block (44) inside wall, the recess internal fixation is equipped with filter screen (46), the garbage collection device is used for collecting the piece that the cutting produced and the collection of side cut waste material.