Background
The polishing machine is one of the most common devices in the processing of wooden doors, and in daily use, the polishing machine has the following defects:
only one kind of abrasive paper can be used for polishing during working, and the rough polishing and the fine polishing cannot be operated continuously, so that the efficiency is low;
when the wood plate is polished, the wood plate is easy to slip, so that the polishing is not in place and the safety risk of hurting people and equipment exists.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides household polishing equipment for a fireproof wooden door. In order to solve the technical problems, the invention is solved by the following technical scheme: the polishing equipment for the household fireproof wooden door comprises a supporting underframe, a polishing machine, a left linkage switch device, an automatic locking device, a right linkage switch device and a reverse roller device, wherein the polishing machine is fixedly arranged at the middle position of the supporting underframe;
the supporting underframe comprises a chain wheel motor, a main chain wheel, an auxiliary chain wheel, a chain, a rack and an auxiliary chain wheel shaft; the guide wheel impact plate is fixedly arranged at the upper end of the left wall plate, a chain wheel motor is fixedly arranged on the left side of the bottom plate, a main chain wheel is arranged on a motor shaft of the chain wheel motor, one end of an auxiliary chain wheel shaft is rotatably connected with an auxiliary chain wheel, the other end of the auxiliary chain wheel shaft is fixedly arranged on the guide rail channel steel II, and the main chain wheel and the auxiliary chain wheel are connected through a chain;
the polishing machine comprises a polishing machine chassis, a lifting guide pillar device, a first grinding wheel, a second grinding wheel, a first hook spring, a clockwise and anticlockwise switch, a power conversion device and a dust hood assembly, wherein the lifting guide pillar device comprises a first guide sleeve, a first spring and a first guide pillar, the top surface of the first spring is in top contact with the lower bottom surface of a piston rod on the first guide pillar, the lower bottom surface of the first spring is in top contact with the upper surface of a lower cover plate of the first guide sleeve, the bottom of the first guide pillar is fixedly arranged on the top surface of the polishing machine chassis, the front crosspiece and the rear crosspiece of the dust hood assembly are rotatably connected with the first grinding wheel, the front crosspiece and the rear crosspiece of the dust hood assembly are rotatably connected with the second grinding wheel, one side of the first grinding wheel is provided with a first gear, one side of the second grinding wheel is provided with a second gear, the clockwise and anticlockwise switch is fixedly arranged, the polishing machine has the advantages that the height of the grinding wheel can be adjusted under the condition of different plate thicknesses, and certain pressure is formed between the grinding wheel and the surface of the wood plate. The power conversion device comprises a rotating motor plate, a second tension spring pin, a third gear, a grinding wheel motor, a first rotary sleeve and a first sliding rod, wherein the grinding wheel motor, the first rotary sleeve and the first sliding rod are arranged on one side of the rotating motor plate, the third gear is fixedly arranged on a motor shaft of the grinding wheel motor, the second tension spring pin is fixedly arranged on the other side of the rotating motor plate, the first sliding rod penetrates through a hole formed in the clockwise and anticlockwise switch in a return mode, the first rotary sleeve is rotatably connected with a first rotating shaft on the dust hood assembly, the first tension spring pin is connected with the second tension spring pin through a first hook spring, the first gear, the second gear and the third gear are all arranged on the same plane, the power conversion device has the beneficial effects that when the third gear is in contact with the first gear, power can be transmitted to the first grinding wheel, when the second gear is in contact with the first gear, and power is transmitted to the second grinding wheel, and certain pressure is always kept when the gears are in contact with each other.
The left linkage switch device comprises a C-shaped ejector rod, a bottom plate, a second guide pillar, a linear guide sleeve, a guide pillar limiting plate, a ball joint and a first connecting rod, one end of the second guide pillar is arranged in the middle of the C-shaped ejector rod, the other end of the second guide pillar is provided with the guide pillar limiting plate, the linear guide sleeve is fixedly arranged on the bottom plate, the second guide pillar is slidably connected to a middle shaft hole of the linear guide sleeve, one end of a ball head of the ball joint is rotatably connected with one end of the first connecting rod, the other end of the ball head of the ball joint is arranged at one end of the C-shaped ejector rod, the other end of the C-shaped ejector rod extends downwards, the right linkage switch device is identical to the left linkage switch device in structure, and one ends of the second connecting rods on the right linkage switch device and the left linkage switch; the automatic locking and jacking device has the beneficial effects that when one side of the C-shaped ejector rod of the automatic locking and jacking left linkage switch device is in jacking contact, the C-shaped ejector rod integrally moves backwards in a straight line under the action of the guide pillar and the guide sleeve, so that the second connecting rod on the left side drives the first sliding rod on the polishing machine to move leftwards, the third gear and the second gear are in contact to transmit power, the first grinding wheel stops rotating, and the second grinding wheel starts to operate.
Automatic locking device includes first movable pulley, loading board, right locking device, left connecting rod, right connecting rod, second extension spring and slip elevating gear, first movable pulley rotates to be connected in on the second rotation axis of loading board, the chain fixed connection on the support chassis is in on the chain connecting plate on the loading board, its beneficial effect is that the chain drives automatic locking device motion. Left side locking device includes second movable pulley, locking plate, third hook spring round pin, fourth hook spring round pin and locking base, the second movable pulley swivelling joint be in on the third rotation axis of locking base, and its roll connection is in on the cell type slide of loading board, third hook spring round pin and fourth hook spring round pin set firmly respectively the both sides of locking base, the locking plate sets firmly locking base is middle in the middle of being positive, right side locking device structure and connected mode with left side locking device is the same, second extension spring both ends are connected respectively on the third hook spring round pin on right side locking device, the left locking device, its beneficial effect is that right side locking device and left locking device can slide on the cell type slide of loading board, and have an inward elasticity. The sliding lifting device comprises a pressing plate, a plane plate, a hinge, a lifting guide sleeve, a lifting guide rod, a connecting rod shaft, a roller and a roller shaft, wherein one end of the pressing plate is connected with the plane plate through the hinge, the other end of the pressing plate is in plane contact with the bearing plate, the lower bottom surface of the plane plate is fixedly arranged on the upper top surface of the lifting guide rod, the lifting guide sleeve is fixedly arranged on the bearing plate, the lifting guide rod is in sliding connection with the inner hole of the bearing plate, the middle part of the lifting guide rod is fixedly provided with the connecting rod shaft, the bottom of the connecting rod shaft is fixedly provided with the roller shaft, one end of a left connecting rod is rotatably connected with a left locking device, the other end of the left connecting rod is rotatably connected with the connecting rod shaft, one end of a right connecting rod is rotatably connected with.
In the above technical scheme, preferably, the first grinding wheel is rough polishing, and the second grinding wheel is fine polishing, and the method has the advantages of realizing rough polishing and fine polishing.
Among the above-mentioned technical scheme, preferred, the last lift guide pillar device of burnishing machine is equipped with 4 groups, respectively on the four corners of dust excluding hood assembly, and its beneficial effect lies in can steady oscilaltion.
In the above technical scheme, preferably, the guide wheel impact plate is in a slope form, and the position of the guide wheel impact plate is aligned with the roller on the lifting guide rod.
Among the above-mentioned technical scheme, preferably, the running direction of contrary gyro wheel device and sprocket motor all receives the control of reversal switch, and the gyro wheel width of contrary gyro wheel device is greater than the width of plank, and its beneficial effect lies in that the reversal switch can control automatic locking device and remove about, and the plank can automatic business turn over equipment.
In the above technical scheme, preferably, the bearing plate is provided with first sliding wheels at four corners, and the right locking device and the left locking device are provided with second sliding wheels at four corners.
The invention has the beneficial effects that: the automatic wood polishing machine has the advantages of high automation degree, automatic wood feeding and discharging, automatic wood clamping, avoidance of wood slipping during polishing after clamping, capability of automatically performing polishing operation twice, great production efficiency, reduction in production cost, improvement of the service life of equipment and small occupied area of the equipment.
Detailed Description
The invention is described in further detail below with reference to the following detailed description and accompanying drawings:
example 1: referring to fig. 1 to 13, the polishing apparatus for a home fire-proof wooden door includes a support chassis 1, a polishing machine 2, a left link switch device 3, an automatic locking device 4, a right link switch device 5, and a counter roller device 6.
The polishing machine 2 sets firmly support 1 middle part position of chassis, automatic locking device 4 sliding connection be in support on the channel steel groove of chassis 1, right side gang switch device 5 and left gang switch device 3 set firmly respectively support both sides about chassis 1, support chassis 1 about promptly both sides respectively have a gang switch device, wherein set up in feeding one side be left gang switch device 3, the opposite side be right gang switch device 5, left gang switch device 3 and right gang switch device 5 all are connected with polishing machine 2 through the connecting rod, anti-reverse roller device 6 sets firmly on the left one side of support chassis 1, and the device department is the feeding department.
The supporting underframe 1 comprises a chain wheel motor 14, a main chain wheel 15, an auxiliary chain wheel 17, a chain 16, a frame 11 and an auxiliary chain wheel shaft 18.
Frame 11 is including guide rail channel-section steel 111, guide rail channel-section steel two 114, right wallboard 112, left wallboard 113, bottom plate 115 and guide pulley striking plate 116, right wallboard 112 and the 113 bottom of left wallboard all set firmly both sides about bottom plate 115, the one end of guide rail channel-section steel 111 and the one end of guide rail channel-section steel two 114 all with the upper portion of left wallboard 113 links to each other, and hookup location is located the both sides limit department of left wallboard 113 respectively, the preferred fixed connection of connected mode, the other end of guide rail channel-section steel 111 and the other end of guide rail channel-section steel two 114 all with the upper portion of right wallboard 112 links to each other, and hookup location is located the both sides limit department of right wallboard 112 respectively, and the preferred fixed connection of connected mode.
The guide wheel impact plate 116 is fixedly arranged at the upper part of the left wall plate 113, the guide wheel impact plate 116 is in a slope form, the position of the guide wheel impact plate is aligned with the roller 487 on the lifting guide rod 485, the slope form is that one end of the slope form, which is close to the roller 487, is provided with an inclined surface, the inclined surface is inclined from bottom to top, preferably, the guide wheel impact plate further comprises a flat top surface, the flat top surface is connected with the inclined surface, the roller 487 moves upwards from the inclined surface, and after moving to the uppermost end of the inclined surface, the roller 487 enters the flat top surface and can move horizontally on the flat top surface.
The chain wheel motor 14 is fixedly arranged on the left side of the bottom plate 115, the main chain wheel 15 is fixedly arranged on a motor shaft of the chain wheel motor 14, the auxiliary chain wheel 17 is rotatably connected to one end of the auxiliary chain wheel shaft 18, the other end of the auxiliary chain wheel shaft 18 is fixedly arranged on the guide rail channel steel II 114, and the main chain wheel 15 is connected with the auxiliary chain wheel 17 through a chain 16.
Burnishing machine 2 includes burnishing machine chassis 21, lift guide pillar device 22, first emery wheel 23, second emery wheel 24, first hook spring 25, in the same direction as contrary switch 26, power conversion device 27 and dust excluding hood assembly 28, lift guide pillar device 22 is including first guide pin bushing 223, first spring 222 and first guide pillar 221, the top touches on the first spring 222 the lower bottom surface of piston rod on the first guide pillar 221, its lower bottom surface top touches the upper surface of apron under the first guide pin bushing 223, first guide pin bushing 221 bottom sets firmly top surface on the burnishing machine chassis 21, the top of first guide pin bushing 223 sets firmly the bottom department of dust excluding hood assembly.
Preferably, four groups of lifting guide pillar devices are arranged and are respectively arranged on four corners of the dust hood assembly.
The sprocket motor 14 is electrically connected to the pressure-contact switch and the clockwise/anticlockwise switch, the start or stop of the sprocket motor is controlled by the pressure-contact switch, the running direction of the sprocket motor is controlled by the clockwise/anticlockwise switch 26, and the manner of controlling the sprocket motor by two switches is a common manner in the prior art and will not be described in detail.
The first grinding wheel 23 is a rough polishing wheel, and the second grinding wheel 24 is a fine polishing wheel.
First emery wheel 23's both ends swivelling joint in the left side of the preceding crosspiece 281 and the back crosspiece 282 of dust excluding hood assembly 28, second emery wheel 24's both ends swivelling joint in the right side of the preceding crosspiece 281 and the back crosspiece 282 of dust excluding hood assembly 28, first emery wheel 23 one side has set firmly first gear 231, second emery wheel 24 one side has set firmly second gear 241, in the same direction as the middle part of contrary switch 26 top surface on burnishing machine chassis 21 sets firmly, burnishing machine chassis 21 middle part inboard has set firmly first extension spring pin 211.
The counter roller device 6 comprises a support body fixedly connected to the rack 11 and a plurality of rollers rotatably arranged on the support body, the width of each roller is larger than that of each wood board, and meanwhile, a starting switch is arranged on the counter roller device and is positioned at a board inlet of the counter roller device 6, and the highest point of the starting switch is higher than that of the roller.
The power conversion device 27 comprises a rotary motor plate 271, a second tension spring pin 272, a third gear 273, a grinding wheel motor 274, a first rotary sleeve 275 and a first sliding rod 276, the grinding wheel motor 274 is disposed on the rotating motor plate 271 and electrically connected to the start switch, after the start switch is pressed, the grinding wheel motor 274 is operated, the third gear 273 is fixed on the motor shaft of the grinding wheel motor 274, the second tension spring pin 272 is fixedly arranged at the inner side of the rotating motor plate 271, the first rotating sleeve 275 and the first sliding rod 276 are fixedly arranged at the outer side of the rotating motor plate 271, the first sliding rod 276 passes through a switch return hole on the clockwise and anticlockwise switch 26, the first rotating sleeve 275 is rotatably connected with a first rotating shaft 283 on the dust hood assembly 28, the two ends of the first hook spring 25 are connected to the first tension spring pin 211 and the second tension spring pin 272, respectively.
The left linkage switch device 3 comprises a C-shaped ejector rod 31, a bottom plate 32, a second guide post 33, a linear guide sleeve 34, a guide post limit plate 35, a ball joint 36 and a first connecting rod 37, wherein one end of the second guide post 33 is fixedly arranged in the middle of the C-shaped ejector rod 31, the guide post limit plate 35 is arranged at the other end of the second guide post 33, the linear guide sleeve 34 is fixedly arranged on the bottom plate 32, the second guide post 33 is slidably connected to a middle shaft hole of the linear guide sleeve 34, one end of a ball head of the ball joint 36 is rotatably connected with one end of the first connecting rod 37, one flat head end of the ball joint 36 is arranged at one end of the C-shaped ejector rod 31, and the other end of the first connecting rod 37 is rotatably connected to a first sliding rod 276 of the polishing machine.
The right linkage switch device 5 is identical to the left linkage switch device 3 in structure, except that a second connecting rod 38 is connected with the ball joint, and one end of the second connecting rod 38 is rotatably connected to a first sliding rod 276 of the polishing machine 2.
Automatic locking device 4 includes first movable pulley 41, loading board 42, right locking device 43, left locking device 44, left connecting rod 45, right connecting rod 46, second extension spring 47, slip elevating gear 48 and pressure touch switch 49, pressure touch switch 49 sets firmly one side of spout on loading board 42, and is located left connecting rod 45's removal route, first movable pulley 41 rotates to be connected on the second rotation axis of loading board 42, chain connecting plate 421 on the loading board 42 with support 16 fixed connection of chain on the chassis 1.
The left locking device 44 comprises a second sliding wheel 444, a locking plate 441, a third hook spring pin 442, a fourth hook spring pin 443 and a locking base 445, wherein the central hole of the second sliding wheel 444 is rotatably connected to a third rotating shaft of the locking base 445, the surface of the second sliding wheel 444 is connected to the groove-shaped slideway 422 of the bearing plate 42 in a rolling manner, the third hook spring pin 442 and the fourth hook spring pin 443 are respectively and fixedly arranged at two sides of the locking base 445, and the locking plate 441 is fixedly arranged in the middle of the locking base 445.
The right locking device 43 has the same structure and connection mode as the left locking device 44.
The second extension spring 47 is connected at both ends to the third hook spring pins 442 of the right and left locking devices 43 and 44, respectively, and preferably, the second extension spring 47 is provided in two pieces, one piece having both ends connected to the two third hook spring pins 442, respectively, and the other piece having both ends connected to the two fourth hook spring pins 443, respectively.
Preferably, the bearing plate 42 is provided with a first sliding wheel 41 at four corners, and the right locking device 43 and the left locking device 44 are provided with a second sliding wheel 444 at four corners.
The sliding lifting device 48 comprises a pressing plate 481, a flat plate 482, a hinge 483, a lifting guide sleeve 484, a lifting guide rod 485, a connecting rod shaft 486, a roller 487 and a roller shaft 488, the pressing plate 481 and the flat plate 482 are connected through the hinge 483, the other end of the pressing plate 481 is in planar contact or tends to be in contact with the upper surface of the bearing plate 42, the pressing plate 481 is inclined, one end of the pressing plate 481 connected with the flat plate 482 is inclined downwards, the flat plate 482 is parallel to the bearing plate 42, the lower bottom surface of the flat plate 482 is connected with the upper end of the lifting guide rod 485, the lifting guide sleeve 484 is fixedly arranged on the bearing plate 42, the lifting guide rod 485 is connected with the inner wall of the lifting guide rod in a sliding manner, the connecting rod shaft 486 is fixedly arranged at the middle part of the lifting guide rod 485, the roller shaft 488 is fixedly arranged at the bottom part of the lifting guide rod 485, one end of the left connecting rod, the other end is rotatably connected with the link shaft 486, one end of the right link 46 is rotatably connected with the right locking device 43, preferably, the right link is connected with a locking bottom plate of the right locking device 43, the other end is rotatably connected with the link shaft 486, and the roller 487 is rotatably arranged on the roller shaft 488.
The working principle is as follows:
after a wood board is placed on the reverse roller device, the wood board is pressed to open the switch, the grinding wheel motor operates, the wood board is pushed to enter the automatic locking device 4, the left locking device 44 firstly presses the press contact switch 49 leftwards under the action of the connecting rod and then moves rightwards through the press sliding lifting device 48, the right locking device 43 and the left locking device 44 clamp the wood board through the action of the second tension spring, after the press contact switch 49 is pressed, the chain wheel motor operates, and the whole automatic locking device 4 moves towards the polishing machine together with the wood board;
the power conversion device 27 firstly transmits power to the first grinding wheel 23 under the action of the first connecting rod 37, the second grinding wheel 24 firstly acts as a plate thickness regulator, and the upper surface of the wood plate is contacted with the grinding wheel surface through the lifting guide post device 22, so that rough polishing is firstly carried out, wherein the grinding wheel which is firstly contacted with the wood plate is the second grinding wheel when the wood plate moves;
when the automatic locking device 4 runs to the rightmost end, the automatic locking device 4 is in top contact with the right linkage switch device 5, the first sliding rod 276 on the power conversion device 27 moves rightwards under the action of the connecting rod, the third gear on the power conversion device 27 is separated from the first gear and is in contact with the second gear, so that the first grinding wheel stops running, the second grinding wheel starts running, and meanwhile, the first grinding wheel serves as a plate thickness regulator to control the height of the polishing machine; meanwhile, the first sliding rod 276 drives the clockwise and anticlockwise switch 26 to enable the chain wheel motor 14 to rotate reversely, so that the automatic locking device 4 moves leftwards, and the wood board is subjected to fine polishing through the polishing machine;
when the automatic locking device 4 moves to the left end, the roller 487 on the internal sliding lifting device 48 contacts the guide wheel impact plate 116, so that the sliding lifting device 48 moves upwards to jack the wood board upwards, the wood board is lifted while being loosened, and the jacking position is located at the position of the side edge of the wood board and is not located at the position of the center position point of the wood board or the position close to the center position point, so that after the wood board is jacked upwards, the wood board inclines towards the reverse roller device 6 and slides downwards to the reverse roller device 6, and the wood board is taken out by the reverse roller device 6, so that the wood board leaves the equipment;
meanwhile, when the sliding lifting device 48 moves upwards, the outer end of the connecting rod stretches towards the outer side and then contracts towards the inner side, the pressure touch switch is touched during stretching, the chain wheel motor stops running to complete one operation, and before the next operation is started, the sliding lifting device is pushed to the position below the guide wheel impact plate in a manual pushing mode or other modes.
Example 2: compared with the embodiment 1, the difference is that the structure of the automatic locking device is different, and the rest is the same.
Referring to fig. 3-9 and 14-17, a heat-insulating household door panel production apparatus includes a support chassis 1, a polishing machine 2, a left gang switch device 3, an automatic locking device 4, a right gang switch device 5, and a counter roller device 6.
The polishing machine 2 sets firmly support 1 middle part position of chassis, automatic locking device 4 sliding connection be in support on the channel steel groove of chassis 1, right side gang switch device 5 and left gang switch device 3 set firmly respectively support both sides about chassis 1, support chassis 1 about promptly both sides respectively have a gang switch device, wherein set up in feeding one side be left gang switch device 3, the opposite side be right gang switch device 5, left gang switch device 3 and right gang switch device 5 all are connected with polishing machine 2 through the connecting rod, anti-reverse roller device 6 sets firmly on the left one side of support chassis 1, and the device department is the feeding department.
The supporting underframe 1 comprises a chain wheel motor 14, a main chain wheel 15, an auxiliary chain wheel 17, a chain 16, a frame 11 and an auxiliary chain wheel shaft 18.
Frame 11 is including guide rail channel-section steel 111, guide rail channel-section steel two 114, right wallboard 112, left wallboard 113 and bottom plate 115, right wallboard 112 and the 113 bottom of left wallboard all set firmly both sides about bottom plate 115, the one end of guide rail channel-section steel 111 and the one end of guide rail channel-section steel two 114 all with left wallboard 113's upper portion links to each other, and hookup location is located left wallboard 113's both sides limit department respectively, the preferred fixed connection of connected mode, the other end of guide rail channel-section steel 111 and the other end of guide rail channel-section steel two 114 all with right wallboard 112's upper portion links to each other, and hookup location is located right wallboard 112's both sides limit department respectively, the preferred fixed connection of connected mode.
The chain wheel motor 14 is fixedly arranged on the left side of the bottom plate 115, the main chain wheel 15 is fixedly arranged on a motor shaft of the chain wheel motor 14, the auxiliary chain wheel 17 is rotatably connected to one end of the auxiliary chain wheel shaft 18, the other end of the auxiliary chain wheel shaft 18 is fixedly arranged on the guide rail channel steel II 114, and the main chain wheel 15 is connected with the auxiliary chain wheel 17 through a chain 16.
Burnishing machine 2 includes burnishing machine chassis 21, lift guide pillar device 22, first emery wheel 23, second emery wheel 24, first hook spring 25, in the same direction as contrary switch 26, power conversion device 27 and dust excluding hood assembly 28, lift guide pillar device 22 is including first guide pin bushing 223, first spring 222 and first guide pillar 221, the top touches on the first spring 222 the lower bottom surface of piston rod on the first guide pillar 221, its lower bottom surface top touches the upper surface of apron under the first guide pin bushing 223, first guide pin bushing 221 bottom sets firmly top surface on the burnishing machine chassis 21, the top of first guide pin bushing 223 sets firmly the bottom department of dust excluding hood assembly.
Preferably, four groups of lifting guide pillar devices are arranged and are respectively arranged on four corners of the dust hood assembly.
The sprocket motor 14 is electrically connected to the pressure-contact switch and the clockwise/anticlockwise switch, the start or stop of the sprocket motor is controlled by the pressure-contact switch, the running direction of the sprocket motor is controlled by the clockwise/anticlockwise switch 26, and the manner of controlling the sprocket motor by two switches is a common manner in the prior art and will not be described in detail.
The first grinding wheel 23 is a rough polishing wheel, and the second grinding wheel 24 is a fine polishing wheel.
First emery wheel 23's both ends swivelling joint in the left side of the preceding crosspiece 281 and the back crosspiece 282 of dust excluding hood assembly 28, second emery wheel 24's both ends swivelling joint in the right side of the preceding crosspiece 281 and the back crosspiece 282 of dust excluding hood assembly 28, first emery wheel 23 one side has set firmly first gear 231, second emery wheel 24 one side has set firmly second gear 241, in the same direction as the middle part of contrary switch 26 top surface on burnishing machine chassis 21 sets firmly, burnishing machine chassis 21 middle part inboard has set firmly first extension spring pin 211.
The counter roller device 6 comprises a support body fixedly connected to the rack 11 and a plurality of rollers rotatably arranged on the support body, the width of each roller is larger than that of each wood board, and meanwhile, a starting switch is arranged on the counter roller device and is positioned at a board inlet of the counter roller device 6, and the highest point of the starting switch is higher than that of the roller.
The power conversion device 27 comprises a rotary motor plate 271, a second tension spring pin 272, a third gear 273, a grinding wheel motor 274, a first rotary sleeve 275 and a first sliding rod 276, the grinding wheel motor 274 is disposed on the rotating motor plate 271 and electrically connected to the start switch, after the start switch is pressed, the grinding wheel motor 274 is operated, the third gear 273 is fixed on the motor shaft of the grinding wheel motor 274, the second tension spring pin 272 is fixedly arranged at the inner side of the rotating motor plate 271, the first rotating sleeve 275 and the first sliding rod 276 are fixedly arranged at the outer side of the rotating motor plate 271, the first sliding rod 276 passes through a switch return hole on the clockwise and anticlockwise switch 26, the first rotating sleeve 275 is rotatably connected with a first rotating shaft 283 on the dust hood assembly 28, the two ends of the first hook spring 25 are connected to the first tension spring pin 211 and the second tension spring pin 272, respectively.
The left linkage switch device 3 comprises a C-shaped ejector rod 31, a bottom plate 32, a second guide post 33, a linear guide sleeve 34, a guide post limit plate 35, a ball joint 36 and a first connecting rod 37, wherein one end of the second guide post 33 is fixedly arranged in the middle of the C-shaped ejector rod 31, the guide post limit plate 35 is arranged at the other end of the second guide post 33, the linear guide sleeve 34 is fixedly arranged on the bottom plate 32, the second guide post 33 is slidably connected to a middle shaft hole of the linear guide sleeve 34, one end of a ball head of the ball joint 36 is rotatably connected with one end of the first connecting rod 37, one flat head end of the ball joint 36 is arranged at one end of the C-shaped ejector rod 31, and the other end of the first connecting rod 37 is rotatably connected to a first sliding rod 276 of the polishing machine.
The structure of the right linkage switch device 5 is the same as that of the left linkage switch device 3, except that a second connecting rod 38 is connected with the ball joint, a press touch switch is not arranged at the position, and one end of the second connecting rod 38 is rotatably connected to a first sliding rod 276 of the polishing machine 2.
Automatic locking device 4 includes first movable pulley 41, loading board 42, limiting plate 43, locking cylinder device 44 and switch 45, first movable pulley 41 rotates to be connected on the second rotation axis of loading board 42, chain connecting plate 421 on the loading board 42 with support 16 fixed connection of the last chain of chassis 1, locating part 43 sets firmly the left side of loading board 42 upper surface, and is preferred, and the locating part includes the spacing of two mutually perpendicular settings, and one of them sets up a side department at loading board 42, and another sets up the side department adjacent with above-mentioned side on the loading board, switch 45 sets firmly locating part 43 inboard bending department.
The bearing plate 42 is provided with a square hollow groove, the locking cylinder device 44 comprises a locking cylinder 441 and a locking plate 442, the locking cylinder 441 is arranged on the lower surface of the bearing plate 42 and electrically connected with the switch 45, the switch 45 is a press-contact switch, and the locking plate 442 is fixedly arranged on the push rod of the locking cylinder 441 and movably arranged in the square hollow groove.
The wood board to be polished is pushed to the bearing plate 42, two adjacent side edges of the wood board to be polished are respectively attached to two limiting strips of the limiting part 43, after the wood board to be polished is attached to the bearing plate, the wood board is pressed down to the switch 45, the locking cylinder is powered on to start, the locking plate is pushed to compress the third edge of the wood board to be polished, and therefore the wood board to be polished is locked.
The bearing plate is also provided with a control switch electrically connected with the chain wheel motor.
Preferably, the first sliding wheel 41 is disposed on each of four corners of the bearing plate 42.
The working principle is as follows:
after the wood board is placed on the reverse roller device, the wood board is touched and pressed to open the switch, the grinding wheel motor runs, the wood board is pushed to enter the automatic locking device 4, the wood board presses down the switch 45, the locking cylinder is powered on and started, the locking plate is pushed to compress the third edge of the wood board to be polished, the wood board to be polished is locked, the automatic locking device 4 is pushed to the left side of the linkage switch device, the second guide pillar 33 is pushed to move horizontally, the first connecting rod 37 is driven to move horizontally, the first sliding rod 276 on the power conversion device 27 is driven to move leftwards under the action of the connecting rod, the third gear on the power conversion device 27 is in matched transmission with the first gear, and the first grinding wheel runs.
Then a control switch on the bearing plate is pressed, a chain wheel motor operates, and the whole automatic locking device 4 with the wood plate moves towards the polishing machine;
the power conversion device 27 firstly transmits power to the first grinding wheel 23 under the action of the first connecting rod 37, the second grinding wheel 24 firstly acts as a plate thickness regulator, and the upper surface of the wood plate is contacted with the grinding wheel surface through the lifting guide post device 22, so that rough polishing is firstly carried out, wherein the grinding wheel which is firstly contacted with the wood plate is the second grinding wheel when the wood plate moves;
when the automatic locking device 4 runs to the rightmost end, the automatic locking device 4 is in top contact with the right linkage switch device 5, the second grinding wheel starts to run, and meanwhile, the first grinding wheel serves as a plate thickness regulator to control the height of the polishing machine; meanwhile, the first sliding rod 276 drives the clockwise and anticlockwise switch 26 to enable the chain wheel motor 14 to rotate reversely, so that the automatic locking device 4 moves leftwards, and the wood board is subjected to fine polishing through the polishing machine;
when the automatic locking device 4 moves to the left end, the control switch is pressed, the chain wheel motor stops running, and the position of the side edge of the wood board which is not fixed is pressed downwards, so that the wood board leaves the switch 45, the locking cylinder returns, the wood board is taken out again, and one-time operation is completed.
Example 3: compared with the embodiment 1, the difference is that the lifting guide post device is fixed and can not be adjusted, the structure of the grinding wheel is different, and the rest parts are the same.
Referring to fig. 18 and 19, the polishing machine 2 includes a polishing machine base frame 21, a fixed column 22a, a first grinding wheel 23, a second grinding wheel 24, a first hook spring 25, a clockwise and anticlockwise switch 26, a power conversion device 27 and a dust hood assembly 28, wherein the fixed column 22a is fixedly connected to the dust hood assembly 28 at an upper end thereof, and is fixedly connected to the polishing machine base frame 21 at a lower end thereof.
Preferably, four groups of the fixing posts 22a are provided, and are respectively arranged on four corners of the dust hood assembly.
The first grinding wheel 23 and the second grinding wheel 24 are both hollow, the body part of the first grinding wheel and the body part of the second grinding wheel are made of flexible materials, the outer surface of the body is provided with a sand surface for polishing, the partially retractable grinding wheel can be matched with wood boards with different thicknesses in a certain range, and after the relatively thick wood boards are contacted with the grinding wheel, the surface of the grinding wheel retracts and presses the wood boards tightly, so that the polishing operation can be carried out.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.