Dust-free cutting equipment for building decoration plates

Abstract

The invention is suitable for the technical field of cutting equipment, and provides building decoration plate dust-free cutting equipment which comprises a machine body and a top plate arranged at the top end of the machine body and further comprises a negative pressure bin, a rotary supporting mechanism and a driving mechanism which are arranged in the machine body and a cutting mechanism arranged in the negative pressure bin. The negative pressure bin is rotationally installed in the inner cavity of the machine body, the cutting mechanism is contained in the negative pressure bin, the first motor drives the negative pressure bin to rotate, the transmission shell is slidably installed through the protection shell, the second motor drives the transmission cylinder and the transmission rod to rotate, the transmission shaft is meshed with the bevel gear of the driven shaft, and the saw blade is driven to rotate. The first telescopic piece drives the transmission shell to drive the saw blade to ascend and descend, meanwhile, the arc-shaped sliding ways of the side plates are in sliding connection with the protection shell, the protection shell is installed in a swinging mode, the second telescopic piece drives the protection shell to drive the transmission shell and the saw blade to swing along the arc-shaped sliding ways, and therefore the rotation angle of the saw blade in the horizontal direction and the inclination angle of the saw blade in the vertical direction are adjusted, and the application range is wider.

Description

Technical Field

[0001] The invention belongs to the technical field of cutting equipment, and in particular relates to a dust-free cutting equipment for building decorative panels. Background Art

[0002] Building decorative panels mainly include blockboard, plywood, decorative panels, density boards, integrated materials, particle boards, fireproof boards, gypsum boards, PVC boards, aluminum gussets, aluminum-plastic panels, three-dimensional panels, etc. According to construction requirements, they are mainly divided into two categories: indoor decorative panels and outdoor decorative panels. In the indoor or outdoor decoration construction of buildings, a large number of the above-mentioned decorative panels are usually used, and the panels are cut and processed according to size requirements.

[0003] Existing cutting equipment is often only capable of straight-line cutting, and cannot perform cutting in different directions and angles according to cutting requirements. In addition, during the high-speed rotation of the saw blade, dust and debris will be raised according to its direction of action, and dust removal cannot be performed quickly, which will not only cause pollution to the construction environment, but also affect the cutting operation and reduce processing efficiency and quality. Therefore, in order to solve the above problems, a dust-free cutting device for building decorative panels is proposed. Summary of the invention

[0004] The invention provides a dust-free cutting device for building decorative plates, aiming to solve the problem that the existing cutting devices cannot perform cutting in different directions and angles according to cutting requirements and cannot perform rapid dust removal.

[0005] The present invention is implemented as follows: a dust-free cutting device for building decorative panels comprises a machine body and a top plate arranged at the top of the machine body, and further comprises: a negative pressure bin arranged in the machine body, a rotary support mechanism, a driving mechanism and a cutting mechanism arranged in the negative pressure bin;

[0006] The negative pressure bin comprises a bin tube and a cone tube and a top cover which are detachably connected to the top and bottom ends of the bin tube, respectively. Side plates are arranged on both sides of the inner cavity of the bin tube, the top cover is rotatably matched with the top plate, and arc-shaped slideways are arranged on the adjacent sides of the two side plates.

[0007] The slewing support mechanism includes a mounting plate detachably connected to the bottom of the inner cavity of the machine body, the bottom end of the cone is rotatably connected to the mounting plate, the bottom surface of the mounting plate is detachably connected to a first motor, and the first motor is connected to and drives the negative pressure chamber;

[0008] The cutting mechanism includes a protective shell and a transmission shell slidably connected to an end face of one side of the protective shell, two ends of the protective shell slidingly cooperate with the arc-shaped slide, a transmission shaft and a driven shaft are rotatably installed in the transmission shell, the transmission shaft and the driven shaft are transmitted by bevel gear meshing, the shaft end of the driven shaft extending into the protective shell is detachably connected with a saw blade, the bottom end of the transmission shaft is connected to a transmission rod extending into the transmission cylinder through a universal joint, the transmission rod and the transmission cylinder slide axially cooperate, a first telescopic member is hinged between the transmission shell and the cone cylinder, second telescopic members are provided on both sides of the first telescopic member, and two ends of the second telescopic member are respectively hinged to the cone cylinder and the protective shell.

[0009] Preferably, the top ends of the adjacent end surfaces of the two side panels are detachably connected with an inner guide plate and an outer guide plate, an arc-shaped slide is formed between the inner guide plate and the outer guide plate, and both ends of the protective shell are detachably connected with an arc-shaped slider, which is slidably connected in the arc-shaped slide.

[0010] Preferably, the slewing support mechanism also includes a dust hopper, the outer wall of the top of the dust hopper is detachably connected to the bottom surface of the mounting plate, the bottom surface of the cone cylinder is detachably connected to an outer gear ring linked to the power of the first motor, the outer gear ring is rotatably connected to the top of the dust hopper through a rotating member, and the dust hopper is connected to the inner cavity of the negative pressure bin.

[0011] Preferably, the driving mechanism also includes a driving shell detachably connected to the bottom surface of the dust hopper, and a driving shaft connected to the power of the second motor is rotatably installed in the driving shell. The driving shaft passes through the dust hopper and extends into the cone cylinder. One end of the driving shaft extending into the cone cylinder is connected to the bottom end of the transmission cylinder through a universal joint.

[0012] Preferably, it also includes a dust suction mechanism arranged under the mounting plate, the dust suction mechanism includes a dust collecting bin, a dust collecting cavity is formed in the dust collecting bin, a guide shell connected to the inner wall of the dust collecting bin is provided in the middle of the dust collecting cavity, an exhaust cavity is formed in the guide shell, the dust collecting cavity is connected to the inner cavity of the dust hopper through a dust suction pipe, a filter connected to the dust collecting cavity is provided on the top of the exhaust cavity, and a fan detachably connected to the dust collecting bin is connected to the bottom of the exhaust cavity, and the fan blows air to the first motor and the second motor.

[0013] Preferably, it also includes a limiting mechanism arranged at the top of the body, the limiting mechanism includes a limiting rod arranged above the top plate, support plates are provided at both ends of the limiting rod, the bottom end of the support plate is slidably connected to the outer wall of the body, the top end of the support plate is threadedly connected with a handle bolt, the handle bolt abuts against the top surface of the top plate, and is used to fix the limiting rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention rotatably installs a negative pressure bin in the inner cavity of the machine body, the negative pressure bin accommodates the cutting mechanism, and the negative pressure bin is driven to rotate by the first motor, and the transmission housing is slidably installed through the protective housing, and then the transmission shaft and the driven shaft rotate the bevel gear, and at the same time, the telescopic transmission cylinder and the transmission rod are respectively connected to the second motor and the transmission shaft through the universal joint, and the second motor drives the transmission cylinder and the transmission rod to rotate, and then the bevel gears of the transmission shaft and the driven shaft are meshed, and the driven shaft drives the saw blade to rotate, and the transmission housing is driven by the first telescopic member to drive the saw blade to rise and fall, so that the saw blade is extended or retracted into the negative pressure bin and the overhanging size of the saw blade is adjusted according to the thickness of the plate, and at the same time, the arc slideway of the side plate is slidably connected to the protective housing, and the protective housing is swingably installed, and the second telescopic member drives the protective housing to drive the transmission housing and the saw blade to swing along the arc slideway to adjust the inclination angle of the saw blade, so that the horizontal rotation angle and the vertical inclination angle of the saw blade can be adjusted according to different cutting directions and angle requirements, and the application range is wider;

[0016] 2. The present invention sets a dust suction mechanism at the bottom of the machine body, and connects the negative pressure bin and the dust collecting chamber through a dust suction pipe and a dust collecting hopper. The fan generates negative pressure in the dust collecting chamber through the exhaust chamber and the filter screen, and acts on the negative pressure bin. The dust and debris generated in the process of cutting the plate by the saw blade are sucked into the negative pressure bin through the dust suction port under the action of negative pressure, and enter the dust collecting hopper through the air guide hole, and are sent to the dust collecting chamber through the dust suction pipe for sedimentation, and are finally collected through the dust collecting drawer, which makes it more convenient and quick to clean dust and debris, and perform dust-free cutting of the plate, avoiding dust and debris from being raised and affecting the cutting work of the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the explosion structure of the present invention;

[0019] Figure 3 It is a schematic diagram of a half-section structure of the present invention;

[0020] Figure 4 for Figure 3 A local enlarged structural diagram of the part;

[0021] Figure 5 for Figure 3 A schematic diagram of the local enlarged structure at B in FIG.

[0022] Figure 6 It is a schematic diagram of the explosion structure of the negative pressure chamber in the present invention;

[0023] Figure 7 It is a schematic diagram of the exploded structure of the slewing support mechanism in the present invention;

[0024] Figure 8It is a schematic diagram of the exploded structure of the driving mechanism in the present invention;

[0025] Fig. 9 It is a three-dimensional structural schematic diagram of the cutting mechanism in the present invention;

[0026] Fig.10 It is a schematic diagram of the expanded structure of the dust collection mechanism in the present invention;

[0027] Fig.11 It is a schematic diagram of the three-dimensional structure of the limiting mechanism in the present invention.

[0028] In the figure: 1. body;

[0029] 2. Negative pressure bin; 21. Bin tube; 22. Cone tube; 23. Side plate; 24. Inner guide plate; 25. Outer guide plate; 26. Curved slideway; 27. Air guide hole; 28. Top cover; 29. ​​Guard plate; 210. Dust suction port;

[0030] 3. Rotary support mechanism; 31. Mounting plate; 32. Dust hopper; 33. First motor; 34. Rotating member; 35. First main gear; 36. External gear ring;

[0031] 4. driving mechanism; 41. driving housing; 42. driving cover plate; 43. second motor; 44. driving shaft; 45. second main gear; 46. slave gear;

[0032] 5. Cutting mechanism; 51. Protective shell; 52. Arc-shaped slider; 53. Transmission shell; 54. Transmission cover plate; 55. Transmission shaft; 56. Driven shaft; 57. Shaft shell; 58. Bevel gear; 59. Saw blade; 510. Limiting groove; 511. First slide rail; 512. First slider; 513. Transmission cylinder; 514. Transmission rod; 515. First telescopic member; 516. Second telescopic member; 517. Articulated seat;

[0033] 6. Top plate;

[0034] 7. Dust collection mechanism; 71. Dust collection bin; 72. Dust collection chamber; 73. Guide shell; 74. Exhaust chamber; 75. Filter; 76. Dust collection drawer; 77. Fan; 78. Exhaust hood; 79. Dust collection pipe;

[0035] 8. Limiting mechanism; 81. Second slide rail; 82. Second slide block; 83. Limiting rod; 84. Support plate; 85. Handle bolt;

[0036] 9. Guide trough; 10. Exhaust net. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0038] Example 1

[0039] See also Figure 1-9 The present invention provides a technical solution: a dust-free cutting device for building decorative panels, comprising a body 1 and a top plate 6 arranged at the top of the body 1, and further comprising: a negative pressure bin 2 arranged in the body 1, a rotary support mechanism 3, a driving mechanism 4 and a cutting mechanism 5 arranged in the negative pressure bin 2;

[0040] The negative pressure bin 2 includes a bin tube 21 and a cone tube 22 and a top cover 28 which are detachably connected to the top and bottom ends of the bin tube 21, respectively. Side panels 23 are provided on both sides of the inner cavity of the bin tube 21. Specifically, the two side panels 23 are vertically arranged and symmetrically distributed in the bin tube 21. The top cover 28 is rotatably matched with the top plate 6. Specifically, a through hole is opened in the middle of the top plate 6, and the top of the top cover 28 extends into the through hole of the top plate 6 for clearance fit. The top surface of the top cover 28 is flush with the top surface of the top plate 6, and the adjacent sides of the two side panels 23 are provided with an arc slide 26.

[0041] The slewing support mechanism 3 includes a mounting plate 31 detachably connected to the bottom of the inner cavity of the machine body 1. Specifically, both ends of the mounting plate 31 are connected to the cross beam of the inner cavity of the machine body 1 by bolts, and the bottom end of the cone 22 is rotatably connected to the mounting plate 31. Specifically, the mounting plate 31 is arranged below the cone 22, and the bottom surface of the mounting plate 31 is detachably connected to a first motor 33, which is connected to and drives the negative pressure chamber 2.

[0042] The cutting mechanism 5 includes a protective shell 51 and a transmission shell 53 slidably connected to an end surface of one side of the protective shell 51. The two ends of the protective shell 51 are slidably matched with the arc slide 26. Specifically, the protective shell 51 swings along the arc slide 26. A transmission shaft 55 and a driven shaft 56 are rotatably installed in the transmission shell 53. Specifically, a port of the transmission shell 53 away from the side of the protective shell 51 is detachably connected to a transmission cover plate 54. The driven shaft 56 is rotatably connected to the transmission shell 53 and the transmission cover plate 54 through a bearing. The bottom of the transmission shaft 55 is rotatably connected to a shaft shell 57 through a bearing. The shaft shell 57 is detachably connected to the bottom surface of the transmission shell 53. The transmission shaft 55 and the driven shaft 56 are connected through a cone. The gear 58 is meshed for transmission. Specifically, one end of the transmission shaft 55 extending into the transmission housing 53 and the shaft end of the driven shaft 56 accommodated in the transmission housing 53 are both keyed to the bevel gear 58, and the bevel gear 58 connected to the transmission shaft 55 and the driven shaft 56 is meshed, and the shaft end of the driven shaft 56 extending into the protective shell 51 is detachably connected with a saw blade 59. Specifically, the shaft end of the driven shaft 56 extending into the protective shell 51 is processed with a D-shaped shaft section, and the saw blade 59 is hole-shaft matched with the D-shaped shaft section of the driven shaft 56 through the D-shaped hole and fastened by a nut, and the protective shell 51 is a through square shell, and the length of the inner cavity of the protective shell 51 is greater than the maximum outer diameter of the saw blade 59, and the inner cavity of the protective shell 51 The width is greater than the sum of the thickness of the saw blade 59 and twice the thickness of the nut. The height of the inner cavity of the protective shell 51 is less than the maximum outer diameter of the saw blade 59. The bottom end of the transmission shaft 55 is connected to a transmission rod 514 extending into the transmission cylinder 513 through a universal joint. The transmission rod 514 and the transmission cylinder 513 are axially slidably matched. Specifically, the outer wall of the transmission rod 514 is processed with spline teeth, and a spline hole is formed in the transmission cylinder 513. The transmission rod 514 and the transmission cylinder 513 are matched with the shaft hole. A first telescopic member 515 is hinged between the transmission shell 53 and the cone cylinder 22. Second telescopic members 516 are provided on both sides of the first telescopic member 515. The two ends of the second telescopic member 516 The ends are hinged to the cone 22 and the protective shell 51 respectively. Specifically, the first telescopic member 515 and the second telescopic member 516 are both electric push rods. Both ends of the first telescopic member 515 and the second telescopic member 516 are hinged with a hinge seat 517 through bolts or pins. The hinge seat 517 at the bottom end of the first telescopic member 515 and the second telescopic member 516 is detachably connected to the top surface of the cone 22 through bolts, the hinge seat 517 at the extended end of the first telescopic member 515 is detachably connected to the transmission cover plate 54 through bolts, and the hinge seat 517 at the extended end of the second telescopic member 516 is detachably connected to the end surface of the protective shell 51 close to the transmission shell 53 through bolts.

[0043] The driving mechanism 4 includes a second motor 43 , and the shaft end of the second motor 43 is dynamically connected to the universal joint at the bottom end of the transmission cylinder 513 .

[0044] Among them, the top ends of the adjacent end surfaces of the two side plates 23 are detachably connected with an inner guide plate 24 and an outer guide plate 25, and an arc-shaped slide 26 is formed between the inner guide plate 24 and the outer guide plate 25. Both ends of the protective shell 51 are detachably connected with an arc-shaped slider 52, and the arc-shaped slider 52 is slidably connected in the arc-shaped slide 26. Specifically, the outer circle of the inner guide plate 24 is a minor arc, and the horizontal plane where the center of the arc surface of the inner guide plate 24, the outer guide plate 25, the arc-shaped slide 26 and the arc-shaped slider 52 is located is located on the bottom surface or top surface or the center cross-section of the protective plate 29, that is, the inner guide plate 24 and the outer guide plate 25 cooperate to form an arc-shaped slide 26, and the arc-shaped slide 26 guides the arc-shaped slider 52 for sliding guidance.

[0045] Among them, a guard plate 29 is sunken into the top surface of the top cover 28, and a dust suction port 210 is opened on the end surface of the guard plate 29. The dust suction port 210 cooperates with the saw blade 59. Specifically, the length of the dust suction port 210 is less than the maximum outer diameter of the saw blade 59, and the width of the dust suction port 210 is not less than 3 times the thickness of the saw blade 59.

[0046] The cutting mechanism 5 also includes a first slider 512 arranged on both sides of the transmission shell 53. Specifically, the end surfaces on both sides of the transmission shell 53 are detachably connected with a right-angle bracket by bolts, and the mounting surface on the other side of the bracket is connected to the first slider 512 by bolts. The end surface of the protective shell 51 close to the transmission shell 53 is detachably connected with a first slide rail 511. The first slider 512 and the first slide rail 511 are slidably connected. The transmission shell 53 is slidably connected to the protective shell 51 through the cooperation of the first slider 512 and the first slide rail 511.

[0047] Among them, a limiting groove 510 is opened on the end face of one side of the protective shell 51 close to the transmission shell 53, and the limiting groove 510 cooperates with the driven shaft 56. Specifically, the limiting groove 510 is a long strip-shaped through hole. The driven shaft 56 passes through the limiting groove 510 and extends into the protective shell 51. The limiting groove 510 can be used to limit the lifting and lowering of the driven shaft 56, the transmission shell 53 and the saw blade 59 in two directions.

[0048] In this embodiment, the negative pressure chamber 2 is rotatably installed in the inner cavity of the machine body 1, the cutting mechanism 5 is accommodated by the negative pressure chamber 2, and the transmission housing 53 is slidably installed through the protective housing 51, so that the bevel gear 58 is rotated by the transmission shaft 55 and the driven shaft 56, and at the same time, the telescopic transmission cylinder 513 and the transmission rod 514 are respectively connected to the second motor 43 and the transmission shaft 55 through the universal joint, and the second motor 43 drives the transmission cylinder 513 and the transmission rod 514 to rotate, and then the bevel gear 58 of the transmission shaft 55 and the driven shaft 56 is meshed, and the driven shaft 56 drives the saw blade 59 to rotate. The transmission housing 53 is driven by the first telescopic member 515 to drive the saw blade 59 to rise and fall, so that the saw blade 59 is extended or retracted into the negative pressure chamber 2, and the overhanging size of the saw blade 59 is adjusted according to the thickness of the plate. At the same time, the arc-shaped slide 26 of the side panel 23 is slidably connected to the protective housing 51, and the protective housing 51 is swingably installed. The protective housing 51 is driven by the second telescopic member 516 to drive the transmission housing 53 and the saw blade 59 to swing along the arc-shaped slide 26, and the inclination angle of the saw blade 59 is adjusted, so that the horizontal rotation angle and the vertical inclination angle of the saw blade 59 can be adjusted according to different cutting directions and angle requirements, and the scope of application is wider.

[0049] Example 2

[0050] See also Figure 2-8 , based on Example 1, the difference is that:

[0051] Preferably, the slewing support mechanism 3 also includes a dust hopper 32, the outer wall of the top of the dust hopper 32 is detachably connected to the bottom surface of the mounting plate 31, specifically, the top of the dust hopper 32 passes through the mounting plate 31, and the outer wall of the top is formed with a flange, and the flange is connected to the bottom surface of the mounting plate 31 by bolts, and the bottom surface of the cone 22 is detachably connected to an outer gear ring 36 that is power-linked to the first motor 33, and the outer gear ring 36 is rotatably connected to the top of the dust hopper 32 through a slewing member 34, and specifically, the slewing member 34 is a thrust bearing, and the slewing member 34 is sleeved on the dust hopper 32 passing through the mounting plate The outer wall of the top of the mounting plate 31 and the stepped inner circle of the outer gear ring 36 cooperate with the rotating member 34, and the dust hopper 32 is connected to the inner cavity of the negative pressure bin 2. Specifically, the port at the top of the dust hopper 32 is higher than the rotating member 34 and does not contact the bottom surface of the cone 22. The bottom surface of the cone 22 is annularly distributed with a plurality of air guide holes 27, and the air guide holes 27 are connected to the inner cavity of the negative pressure bin 2 and the dust hopper 32. The rotating member 34 can be positioned and installed through the dust hopper 32, and the rotating member 34 cooperates with the outer gear ring 36 to provide rotational support for the negative pressure bin 2, so that the structure is more stable and easy to disassemble and maintain;

[0052] Among them, the shaft end of the first motor 33 is provided with a first main gear 35, and the first main gear 35 is engaged with the outer ring gear 36. The outer ring gear 36 and the first motor 33 are power-linked by the first main gear 35 and the outer ring gear 36, and then the first motor 33 drives the outer ring gear 36 to drive the negative pressure chamber 2 to rotate, thereby adjusting the rotation angle of the saw blade 59.

[0053] Preferably, the driving mechanism 4 also includes a driving shell 41 detachably connected to the bottom surface of the dust hopper 32, and a driving shaft 44 connected to the power of the second motor 43 is rotatably installed in the driving shell 41. The driving shaft 44 passes through the dust hopper 32 and extends into the cone cylinder 22. Specifically, the port on the top of the driving shell 41 is detachably connected to the driving cover plate 42 by bolts, and the driving cover plate 42 and the driving shell 41 are detachably connected to the bottom surface of the dust hopper 32 by bolts. The driving shaft 44 is rotatably connected to the driving shell 41 and the driving cover plate 42 through a bearing, and the middle parts of the bottom surfaces of the cone cylinder 22 and the dust hopper 32 are provided with through holes that cooperate with the driving shaft 44. One end of the driving shaft 44 extending into the cone cylinder 22 is connected to the bottom end of the transmission cylinder 513 through a universal joint, so that the driving shell 41 can cooperate with the driving cover plate 42 to rotatably install the driving shaft 44, and then the second motor 43 drives the driving shaft 44 to rotate, and the driving shaft 44 cooperates with the universal joint to drive the transmission cylinder 513 to rotate;

[0054] Among them, the shaft end of the second motor 43 extending into the drive shell 41 is provided with a second main gear 45, and the shaft section of the driving shaft 44 rotatably connected to the drive shell 41 is provided with a slave gear 46, and the slave gear 46 is meshed with the second main gear 45. The driving shaft 44 and the second motor 43 can be connected by the engagement of the slave gear 46 with the second main gear 45, and then the second motor 43 drives the driving shaft 44 to rotate.

[0055] In this embodiment, the second main gear 45 is driven to rotate by the second motor 43, and the driven shaft 44 is driven to rotate under the meshing transmission of the slave gear 46 and the second main gear 45, and then the driving shaft 44 cooperates with the universal joint to drive the transmission cylinder 513 to rotate, and finally drives the saw blade 59 to rotate; and the first main gear 35 is driven to rotate by the first motor 33, and the outer gear ring 36 is driven to drive the negative pressure chamber 2 to rotate under the meshing transmission of the first main gear 35 and the outer gear ring 36, and then the rotation angle of the saw blade 59 is adjusted, so that the power transmission is more stable and the operation is more convenient.

[0056] Example 3

[0057] See also Figure 1-3 , 5-7, 10, based on Example 2, except that:

[0058] Preferably, it also includes a dust suction mechanism 7 arranged under the mounting plate 31, the dust suction mechanism 7 includes a dust collecting bin 71, a dust collecting chamber 72 is formed in the dust collecting bin 71, a guide shell 73 connected to the inner wall of the dust collecting bin 71 is provided in the middle of the dust collecting chamber 72, an exhaust chamber 74 is formed in the guide shell 73, specifically, the cross-section of the guide shell 73 is L-shaped, the guide shell 73 is welded to the inner wall of the dust collecting bin 71, and the enclosed exhaust chamber 74 is L-shaped, the dust collecting chamber 72 is connected to the inner cavity of the dust collecting hopper 32 through a dust suction pipe 79, specifically, one end of the dust suction pipe 79 is detachably connected to the top of the dust collecting bin 71 and connected to the dust collecting chamber 72, the other end of the dust suction pipe 79 is detachably connected to the outer wall of the bottom plate of the dust collecting hopper 32 and connected to the inner cavity of the dust collecting hopper 32, and the top of the exhaust chamber 74 is provided with a filter connected to the dust collecting chamber 72 The filter screen 75 is connected to the end surface of the guide shell 73 at the through hole, and the filter screen 75 is connected to the end surface of the guide shell 73 at the through hole. The bottom of the exhaust chamber 74 is connected to the fan 77 which is detachably connected to the dust collecting bin 71. The fan 77 blows air to the first motor 33 and the second motor 43. Specifically, the fan 77 is located between the second motor 43 and the dust collecting bin 71. The exhaust air pumped by the fan 77 is sent to the inner cavity of the body 1 below the mounting plate 31, and the exhaust air is pumped to the first motor 33 and the second motor 43. The negative pressure generated by the fan 77 in the dust collecting chamber 72 can be applied to the negative pressure bin 2 through the dust suction pipe 79 and the dust collecting hopper 32, and then the dust and debris generated by the saw blade 59 cutting are sucked into the negative pressure bin 2 through the dust suction port 210, and finally sent to the dust collecting chamber 72 for sedimentation and collection.

[0059] The end surface of the body 1 facing away from the dust collecting bin 71 is detachably connected with an exhaust net 10, and the exhaust net 10 is used for exhausting air from the fan 77. Specifically, the fan 77 exhausts air into the cavity below the mounting plate 31, and after cooling the first motor 33 and the second motor 43, the air is exhausted to the outside of the body 1 through the exhaust net 10;

[0060] The outer cover of the fan 77 is provided with an exhaust hood 78, and the port of the exhaust hood 78 is detachably connected to the dust collecting bin 71. Specifically, the exhaust hood 78 is a metal mesh cover, and the port is connected to the end surface of the dust collecting bin 71 close to the fan 77 by bolts, so that the exhaust air of the fan 77 can be evenly discharged outward through the exhaust hood 78, which is more conducive to the heat dissipation of the first motor 33 and the second motor 43.

[0061] Among them, the dust collecting bin 71 is open at one end away from the fan 77, and a dust collecting drawer 76 is pulled out and matched in the dust collecting chamber 72. The dust collecting drawer 76 is used to collect debris settled in the dust collecting chamber 72. Specifically, the height of the inner cavity of the dust collecting drawer 76 is lower than the installation height of the port of the dust suction pipe 79 connected to the dust collecting chamber 72, and the end of the dust collecting drawer 76 away from the fan 77 is sunk into the body 1 and closes the opening of the dust collecting bin 71 away from the fan 77. The dust collecting drawer 76 is made of transparent plastic material, and the dust and debris settled in the dust collecting chamber 72 can be collected through the dust collecting drawer 76, which makes it more convenient to clean the debris.

[0062] In this embodiment, during the process of the saw blade 59 cutting the plate, dust and debris are mainly generated in the cutting range, and the dust and debris will be raised as the saw blade 59 rotates;

[0063] By setting the dust suction mechanism 7, the dust suction pipe 79 cooperates with the dust collecting hopper 32 to connect the negative pressure bin 2 and the dust collecting chamber 72, and the fan 77 generates negative pressure in the dust collecting chamber 72 through the exhaust chamber 74 and the filter screen 75, and acts on the negative pressure bin 2. The dust and debris generated in the process of cutting the plate by the saw blade 59 are sucked into the negative pressure bin 2 through the dust suction port 210 under the action of negative pressure, and enter the dust collecting hopper 32 through the air guide hole 27, and are sent to the dust collecting chamber 72 through the dust suction pipe 79 for sedimentation, and finally collected by the dust collecting drawer 76, so that the dust and debris can be cleaned more conveniently and quickly, and the dust-free cutting of the plate can be realized, and the dust and debris can be prevented from being raised and affecting the cutting work of the plate;

[0064] The air exhausted by the fan 77 first enters the exhaust hood 78 to cool the fan 77, and then is evenly introduced into the cavity below the mounting plate 31 through the exhaust hood 78 to dissipate heat for the first motor 33 and the second motor 43, and finally is discharged from the machine body 1 through the exhaust net 10.

[0065] Example 4

[0066] See also Figure 1-3 , 11, based on Example 1, the difference is that:

[0067] Preferably, it also includes a limiting mechanism 8 arranged at the top of the body 1, the limiting mechanism 8 includes a limiting rod 83 arranged above the top plate 6, and support plates 84 are provided at both ends of the limiting rod 83. The bottom end of the support plate 84 is slidably connected to the outer wall of the body 1, and the top of the support plate 84 is threadedly connected with a handle bolt 85, and the handle bolt 85 abuts against the top surface of the top plate 6 and is used to fix the limiting rod 83. The position of the limiting rod 83 can be adjusted by sliding the limiting rod 83, and the plate is limited by the limiting rod 83. The position of the limiting rod 83 is locked by rotating the handle bolt 85 to abut against the top plate 6, which is more convenient to operate and has a wider range of applications.

[0068] The limiting mechanism 8 further includes a second slide rail 81 detachably connected to the outer wall of the body 1, and a second slider 82 is provided at the bottom end of the support plate 84, and the second slider 82 is slidably connected to the second slide rail 81;

[0069] In this embodiment, if the shape of the body 1 is a square column, the second slide rail 81 is a linear slide rail and is arranged on the outer end surface of the body 1. The bottom end of the support plate 84 is detachably connected to the second slider 82 by screws, and the second slider 82 slides linearly along the second slide rail 81.

[0070] If the shape of the machine body 1 is cylindrical, the top of the support plate 84 is slidably connected to the limit rod 83, and the sliding connection between the support plate 84 and the limit rod 83 is locked by the handle bolt 85. The second slide rail 81 is an arc-shaped slide rail, and the shaft hole at the bottom end of the support plate 84 is matched with the second slide block 82, and the second slide block 82 slides along the circumference of the second slide rail 81;

[0071] For the above two shapes of the machine body 1, a guide groove 9 is opened on the end surface of the top plate 6, and the bottom end of the support plate 84 passes through the guide groove 9. The sliding of the support plate 84 is limited by the guide groove 9. In addition, a scale can be set along the guide groove 9 or along the groove position perpendicular to the top cover 28, so as to adjust the position of the limit rod 83 according to the scale required for cutting.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dust-free cutting device for building decorative panels, comprising a body (1) and a top plate (6) arranged on the top of the body (1), characterized in that: Also includes: A negative pressure chamber (2), a rotary support mechanism (3), a driving mechanism (4) and a cutting mechanism (5) arranged in the negative pressure chamber (2); The negative pressure bin (2) comprises a bin tube (21) and a conical tube (22) and a top cover (28) which are detachably connected to the top and bottom ends of the bin tube (21), side panels (23) are arranged on both sides of the inner cavity of the bin tube (21), the top cover (28) is rotatably matched with the top plate (6), and arc-shaped slideways (26) are arranged on adjacent sides of the two side panels (23); The slewing support mechanism (3) comprises a mounting plate (31) detachably connected to the bottom of the inner cavity of the machine body (1); the bottom end of the cone (22) is rotatably connected to the mounting plate (31); the bottom surface of the mounting plate (31) is detachably connected to a first motor (33); the first motor (33) is connected to and drives the negative pressure chamber (2); The cutting mechanism (5) comprises a protective shell (51) and a transmission shell (53) slidably connected to an end surface of one side of the protective shell (51), the two ends of the protective shell (51) are slidably matched with the arc-shaped slideway (26), a transmission shaft (55) and a driven shaft (56) are rotatably installed in the transmission shell (53), the transmission shaft (55) and the driven shaft (56) are meshed and transmitted through a bevel gear (58), and the shaft end of the driven shaft (56) extending into the protective shell (51) is detachably connected to a saw blade (59), The bottom end of the transmission shaft (55) is connected to a transmission rod (514) extending into the transmission cylinder (513) through a universal joint. The transmission rod (514) and the transmission cylinder (513) are slidably matched along the axial direction. A first telescopic member (515) is hinged between the transmission housing (53) and the cone cylinder (22). Second telescopic members (516) are provided on both sides of the first telescopic member (515). Two ends of the second telescopic member (516) are respectively hinged to the cone cylinder (22) and the protective housing (51). The driving mechanism (4) comprises a second motor (43), the shaft end of the second motor (43) being dynamically connected to a universal joint at the bottom end of the transmission cylinder (513).

2. A dust-free cutting device for building decorative panels as claimed in claim 1, characterized in that: The top ends of the adjacent end surfaces of the two side plates (23) are detachably connected with an inner guide plate (24) and an outer guide plate (25), an arc-shaped slideway (26) is formed between the inner guide plate (24) and the outer guide plate (25), and both ends of the protective shell (51) are detachably connected with an arc-shaped slider (52), and the arc-shaped slider (52) is slidably connected in the arc-shaped slideway (26).

3. The dust-free cutting device for building decorative panels according to claim 1, characterized in that: The slewing support mechanism (3) also includes a dust collecting hopper (32), the outer wall of the top of the dust collecting hopper (32) is detachably connected to the bottom surface of the mounting plate (31), the bottom surface of the cone (22) is detachably connected to an outer gear ring (36) that is power-linked to the first motor (33), the outer gear ring (36) is rotatably connected to the top of the dust collecting hopper (32) via a slewing member (34), and the dust collecting hopper (32) is connected to the inner cavity of the negative pressure bin (2).

4. A dust-free cutting device for building decorative panels as claimed in claim 3, characterized in that: The driving mechanism (4) further comprises a driving shell (41) detachably connected to the bottom surface of the dust collecting hopper (32); a driving shaft (44) connected to the power of the second motor (43) is rotatably mounted in the driving shell (41); the driving shaft (44) passes through the dust collecting hopper (32) and extends into the cone cylinder (22); one end of the driving shaft (44) extending into the cone cylinder (22) is connected to the bottom end of the transmission cylinder (513) via a universal joint.

5. A dust-free cutting device for building decorative panels as claimed in claim 4, characterized in that: The utility model also comprises a dust suction mechanism (7) arranged below the mounting plate (31), the dust suction mechanism (7) comprising a dust collecting bin (71), a dust collecting cavity (72) formed in the dust collecting bin (71), a guide shell (73) connected to the inner wall of the dust collecting bin (71) is provided in the middle of the dust collecting cavity (72), an exhaust cavity (74) is formed in the guide shell (73), the dust collecting cavity (72) is connected to the inner cavity of the dust collecting hopper (32) through a dust suction pipe (79), a filter screen (75) connected to the dust collecting cavity (72) is provided at the top of the exhaust cavity (74), and a fan (77) detachably connected to the dust collecting bin (71) is connected at the bottom of the exhaust cavity (74), and the fan (77) blows air to the first motor (33) and the second motor (43).

6. The dust-free cutting device for building decorative panels according to claim 1, characterized in that: The machine body (1) further comprises a limiting mechanism (8) arranged at the top end of the machine body (1), the limiting mechanism (8) comprising a limiting rod (83) arranged above the top plate (6), support plates (84) being provided at both ends of the limiting rod (83), the bottom end of the support plate (84) being slidably connected to the outer wall of the machine body (1), the top end of the support plate (84) being threadedly connected to a handle bolt (85), the handle bolt (85) being in contact with the top surface of the top plate (6) and being used to fix the limiting rod (83).

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