CN209831788U - Dust-free floor back slotting equipment - Google Patents

Abstract

The utility model discloses a dustless floor back slotting device, slotting device includes: a base; slotting main cutter shaft mechanisms; the adjustable high-pressure plate mechanism is arranged below the slotting main cutter shaft mechanism and is used for pressing the first surface of the floor board; a flexible idler device; a roller transmission mechanism; the main dust collection shield is arranged above a saw blade cutter group in the slotting main cutter shaft mechanism in a covering manner, the main dust collection shield is communicated with dust collection equipment, and a plurality of static elimination rods are arranged on the inner side wall of the main dust collection shield; and the discharging cleaning device is arranged behind the roller transmission mechanism on the rear side. The beneficial effects of the utility model are that fluting is carried out to floor back, and the weight on monolithic floor reduces behind the fluting, and container list cabinet loading capacity improves for conveying efficiency improves, thereby reduces the freight, can also retrieve raw and other materials simultaneously and circulate and recycle.

Description

Dust-free floor back slotting equipment

Technical Field

The utility model belongs to the floor field, concretely relates to dustless floor back slotting device.

Background

At present, the floor industry generally adopts container transportation, and the LVT or SPC material floor is usually loaded to half space of a container to reach the container transportation weight standard. By adding the back grooving process in the floor production process, the weight of a single floor can be reduced while the back raw materials are reduced, so that the transportation efficiency is improved, and the transportation cost is reduced.

Disclosure of Invention

To the problem that exists among the prior art, the utility model provides a dustless floor back slotting device, the utility model discloses can slot at the floor back along floor length direction, according to the different width size in floor, install the saw bit of different quantity, can process the groove of different quantity, guarantee furthest's subtracting heavy, also can carry out the depth of slotting and fluting length setting according to control procedure simultaneously. According to different materials, different grooving depths and different grooving types, the weight of a single floor can be reduced by about 10% -18% after grooving.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a dust free floor back grooving apparatus, the grooving apparatus comprising: a base; slotting main cutter shaft mechanisms; the adjustable high-pressure plate mechanism is arranged below the slotting main cutter shaft mechanism and is used for pressing the first surface of the floor board; the flexible carrier roller device is arranged below the adjustable high-pressure plate mechanism and used for supporting the second surface of the floor plate; the device comprises a grooving main cutter shaft mechanism, roller transmission mechanisms, a first motor, a second motor, a third roller and a fourth roller, wherein the roller transmission mechanisms are arranged in two groups and are respectively arranged on the front side and the rear side of the grooving main cutter shaft mechanism; the main dust collection shield is arranged above a saw blade cutter group in the slotting main cutter shaft mechanism in a covering manner, the main dust collection shield is communicated with dust collection equipment, and a plurality of static elimination rods are arranged on the inner side wall of the main dust collection shield; and

and the discharging cleaning device is arranged behind the roller transmission mechanism on the rear side.

Preferably, the discharging cleaning device comprises a brush roller, sliding blocks fixedly connected to two ends of the brush roller, a second screw rod fixedly connected to the sliding blocks on the two moving blocks, two steering boxes connected to a rotating shaft of the second screw rod, and adjusting shafts penetrating through the two steering boxes, wherein the brush roller is in driving connection with the first motor.

Preferably, the two ends of the brush roller are hinged to the base, and one end of the brush roller is connected with one end of the third roller through a belt or a chain.

Preferably, the brush drum includes a plurality of brush units, both ends of which are serrated.

Preferably, the discharge cleaning device further comprises an auxiliary dust suction protective cover, the auxiliary dust suction protective cover is arranged on the upper portion of the brush roller in a covering mode, and the auxiliary dust suction protective cover is communicated with dust suction equipment.

Preferably, the base is provided with a track corresponding to the sliding block, and the track comprises two long shafts which are arranged on two sides of the rotating shaft of the second screw rod in parallel.

Preferably, the slotting main tool shaft mechanism comprises a main shaft cutting motor, a servo jumping motor, an eccentric shaft rocker mechanism, a main shaft mounting rocker arm support and a saw blade tool set, the main shaft mounting rocker arm support is hinged to the base, the saw blade tool set comprises a main shaft, the main shaft penetrates through one side of the main shaft mounting rocker arm support and is in driving connection with the main shaft cutting motor through a universal coupling, the other side of the main shaft mounting rocker arm support is connected with one end of a rocker in the eccentric shaft rocker mechanism, the other end of the rocker is hinged to an eccentric shaft in the eccentric shaft rocker mechanism, and the eccentric shaft is in driving connection with the servo jumping motor.

Preferably, the flexible roller device comprises a first roller, a second roller and a first cylinder, the first roller is located under the saw blade cutter set and used as a lower support of a cutting position, two ends of the first roller are respectively connected with a moving part of the first cylinder, a cylinder body of the first cylinder is fixed on the base, the second roller is fixed on the base, and the second roller is distributed on two sides of the first roller.

Preferably, the material of the first roller is steel.

Preferably, the slotting equipment further comprises a feeding protection height limiting device, and the feeding protection height limiting device is arranged at an inlet at one end, used for feeding, of the roller transmission mechanism.

Compared with the prior art, the beneficial effects of the utility model are that:

1. grooving is performed on the back of the floor through the back grooving equipment, the weight of the single floor after grooving is reduced, the loading capacity of a single container cabinet is improved, the transportation efficiency is improved, and the transportation cost is reduced. Meanwhile, the raw materials can be recycled;

2. the adjustable high-pressure plate mechanism can adjust the height according to floors with different thicknesses, and ensures that the pressure plate presses the back of the floor when the floor is transmitted to the saw blade processing position, so that the floor is kept in a stable and non-jumping state during the floor slotting processing;

3. the first roller is used as a cutting position lower support, when the thickness of the plate exceeds a theoretical set value, the pressure plate can press the floor downwards, and meanwhile, the first cylinder can press downwards, and the flexible device can ensure the cutting groove depth precision;

4. the height of a third roller in the upper roller assembly is jointly controlled by the cooperation of the second air cylinder and the wedge-shaped sliding block, so that the width of a crack between the upper roller assembly and the lower roller assembly is adjusted to adapt to floors with different thicknesses, and the third roller in the upper roller assembly is jacked from top to bottom by the second air cylinder, so that the roller transmission mechanism can tightly press the floors and has certain tolerance allowance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a right side schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the left side of the overall structure of the present invention.

Fig. 3 is a sectional view of the present invention.

Fig. 4 is a schematic view of the floor back grooving of the present invention.

Fig. 5 is a schematic view of a roller transmission mechanism.

Fig. 6 is a schematic view of another view of the roller drive mechanism.

FIG. 7 is a schematic view of a grooving station.

Fig. 8 is a schematic view of an adjustable high pressure plate mechanism.

Fig. 9 is a schematic view of a flexible idler device.

FIG. 10 is a schematic view of a feed guard height limiting device.

Fig. 11 is a schematic diagram of a device for realizing up-and-down movement in the slotting main cutter shaft mechanism.

Fig. 12 is a schematic view of an eccentric shaft.

FIG. 13 is a schematic view of an upper roller height adjusting apparatus.

Fig. 14 is a schematic structural view of the upper roller assembly.

Fig. 15 is a schematic structural view of the rotating plate.

Fig. 16 is a schematic view of the upper roller assembly and the upper roller height adjuster.

Fig. 17 is a schematic structural diagram of the height limiting module.

Fig. 18 is a schematic structural diagram of the anti-reverse flight module.

Fig. 19 is a schematic structural view of the screw slider mechanism.

Fig. 20 is a partially enlarged schematic view at a in fig. 19.

Fig. 21 is a schematic view of the structure of the platen after explosion and assembly.

Fig. 22 is a schematic view of the structure of the blade group.

FIG. 23 is a schematic view of a stop bolt engaged with a first cylinder.

FIG. 24 is a schematic structural view of the discharge cleaning apparatus.

FIG. 25 is a schematic view showing a structure of a brush unit.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1-25, the present embodiment provides a dust free floor back grooving apparatus, comprising:

a base 1;

the slotting main tool shaft mechanism 2, the slotting main tool shaft mechanism 2 comprises a main shaft cutting motor 21, a servo jumping motor 22, an eccentric shaft rocker mechanism, a main shaft mounting rocker arm bracket 23 and a saw blade tool set 24, the main shaft mounting rocker arm bracket 23 is hinged on the base 1, the saw blade tool set 24 comprises a main shaft 241, a blade 242 and a plurality of adjusting plates 243, the main shaft 241 is fixedly connected with the blade 242 and an adjusting plate 243, the adjusting plate 243 has a plurality of specifications with different thicknesses for adjusting the position of the blade, the blade can just penetrate through the hollow strip 351, one side of the spindle 241 penetrating through the spindle mounting rocker arm support 23 is in driving connection with the spindle cutting motor 21 through the universal coupling 25, the other side of the spindle mounting rocker arm support 23 is connected with one end of a rocker 26 in the eccentric shaft rocker mechanism, the other end of the rocker 26 is hinged with an eccentric shaft 27 in the eccentric shaft rocker mechanism, and the eccentric shaft 27 is in driving connection with the servo jump motor 22;

the adjustable high-pressure plate mechanism 3 is arranged below the slotting main cutter shaft mechanism 2 and used for pressing a first surface of a floor board, the adjustable high-pressure plate mechanism 3 comprises a pressing plate used for pressing the first surface of the floor board and a screw rod sliding block mechanism fixedly connected with the lower portion of the pressing plate, the lower portion of the pressing plate is fixedly connected with the screw rod sliding block mechanism, the pressing plate comprises a ebonite board 35 and a steel plate 36, a plurality of hollow strips 351 arranged in parallel are arranged on the ebonite board 35, a cavity used for containing the ebonite board 35 is arranged in the middle of the steel plate 36, screw holes are formed in the peripheries of the steel plate 36 and the ebonite board 35, and the steel plate 36 and the ebonite board 35 are fixedly connected through bolts; the screw rod sliding block mechanism comprises an upper connecting plate 33, a lower connecting plate 34 and two worm screw rod lifters 31, wherein the worm screw rod lifters 31 are fixed on the lower connecting plate 34 in parallel, the lifting part of the worm screw rod lifters 31 is fixedly connected with the upper connecting plate 33, the worm screw rod lifters 31 share one driving rotating shaft 32, the lower connecting plate 34 is fixedly connected on the base 1, and the upper part of the upper connecting plate 33 is fixedly connected with the steel plate 36; sliding blocks 331 are arranged on two sides of the upper connecting plate 33 in parallel, and sliding rails 332 corresponding to the sliding blocks 331 are arranged on the lower connecting plate 34; the sliding block 331 is also connected with an oil filling nozzle 333; the driving rotating shaft 32 is connected with a counting meter for displaying the height of the pressing plate; the combination of the ebonite wood board and the steel plate enables the ebonite wood material cut by the blade to be processed together with the floor cutting material, the material hardness of the ebonite wood board is low, the blade cannot be damaged, and meanwhile, the ebonite wood board is embedded in the steel plate, so that the strength of the whole pressing plate is high, the floor can be firmly pressed, and the problem that the grooving precision is reduced due to the fact that the floor is not tightly pressed in the grooving process is solved;

the flexible carrier roller device 4 is arranged below the adjustable high-pressure plate mechanism 3 and used for supporting the second surface of the floor plate; the flexible carrier roller device 4 comprises a first roller 41, a second roller 42 and a first air cylinder 43, wherein the first roller 41 is positioned under the saw blade cutter set 24 and used as a lower support of a cutting position, two ends of the first roller 41 are respectively connected with a moving part of the first air cylinder 43, a cylinder body of the first air cylinder 43 is fixed on the base 1, the moving part of the first air cylinder 43 is also fixedly connected with a clamping plate 44, a limiting bolt 45 is connected between the clamping plate 44 and the base 1, the second roller 42 is fixed on the base 1, the second roller 42 is distributed on two sides of the first roller 41, the first roller 41 is made of steel, and the second roller 42 is made of rubber; two second rollers 42 are arranged on two sides of the first roller 41; the maximum extension stroke of the first cylinder is adjusted by adjusting the length of the limiting bolt, and the elastic force of the first cylinders with different extension degrees provides different support forces for the first roller, so that the support requirements of floors with different thicknesses are met;

the roller transmission mechanisms 5 are provided with two groups of roller transmission mechanisms 5, the roller transmission mechanisms 5 are respectively arranged on the front side and the rear side of the main slotting cutter shaft mechanism 2, each roller transmission mechanism 5 comprises an upper roller assembly 51, a lower roller assembly 52 and an upper roller heightening device, a gap for floor boards to pass through is reserved between the upper roller assembly 51 and the lower roller assembly 52, the upper roller assembly 51 and the lower roller assembly 52 respectively comprise two third rollers 54 which are arranged in parallel, the upper roller heightening device comprises a wedge-shaped sliding block 531 for bearing the third rollers in the upper roller assembly and a first lead screw 532 capable of moving the wedge-shaped sliding block 531, two ends of the third rollers in the upper roller assembly are hinged and fixed on a rotating plate 55, a rotating shaft 56 penetrates through the rotating plate 55, the rotating plate 55 can rotate around the rotating shaft, the upper part of the rotating plate 55 is connected with a moving part of a second air cylinder 57, main bodies of the second air cylinders 57 are fixed on brackets on two sides, the lower part of the rotating plate 55 is supported by a wedge-shaped sliding block, and two ends of a third roller in the lower roller assembly are fixed on brackets at two sides of the lower roller assembly; the rotating shaft is arranged in parallel with the third roller, the rotating plate is hinged and fixed on the rotating shaft through a bearing, and the third roller in the upper roller assembly is hinged and fixed on the rotating plate through a bearing; the upper and lower transmission rollers and the lower roller are fixed on the frame through bearings and locking expansion sleeves; one end of the upper roller is hinged to the rack, and the sliding block is pushed or pulled by the lead screw to move in the sliding chute, so that the other end of the upper roller continuously compresses the inclined surface on the sliding block under the action of the upper pressing cylinder, and the upper roller also goes up and down along with the lifting of the inclined surface of the sliding block; a dial indicator is arranged on the sliding blocks with the same height and the same slope outside and is used for detecting the height change value of a third roller in the roller assembly at the upper height; a dial indicator is adopted, so that the dial indicator is convenient to debug to a proper height;

a first chain 581 and a first motor 583 are arranged on the left side of the roller transmission mechanism 5, a second chain 582 is arranged on the right side of the roller transmission mechanism 5, the first chain 581 is wound on the two lower roller assemblies 52, the second chain 582 is wound on the two upper roller assemblies 51, the first motor 583 is in driving connection with a transmission shaft 584, a first end 5841 of the transmission shaft is in driving connection with the first chain 581 and is arranged on the outer side of the first chain 581, and a second end 5842 of the transmission shaft is in driving connection with the second chain 582 and is arranged on the inner side of the second chain 582, so that the lower roller assemblies 52 and the upper roller assemblies 51 reversely rotate; the roller transmission mechanism 5 further comprises a plurality of first guide wheels 585 and second guide wheels 586, wherein the shaft of the first guide wheels 585 is fixedly connected to the base 1, and is used for changing the direction of the first chain 581 or the second chain 582; the shaft of the second guide wheel 586 is slidably disposed on the base 1, a third air cylinder 587 is further fixed on the base 1, and a moving part of the third air cylinder 587 is fixed on the second guide wheel and is used for tensioning the first chain 581 or the second chain 582; a code counter is arranged on the third roller 54; the coding counter is convenient and visual to display, the rotating speed of the roller assembly is adjusted by adjusting the frequency of the first motor; changing the direction of the first chain 581 or the second chain 582 so that more meshing teeth are arranged between the first chain 581 or the second chain 582 and the driven member, thereby enhancing the driving stability; a second slide rail is arranged on the base 1, a second slide block is arranged on the second slide rail, and the second slide block is fixedly connected with a shaft of the second guide wheel;

the feeding protection height limiting device 6 is arranged at an inlet at one end, used for feeding, of the roller transmission mechanism 5, the feeding protection height limiting device 6 sequentially comprises a height limiting module 61 and an anti-reverse-flying module 62 according to a feeding sequence, the height limiting module 61 comprises a proximity switch 611, a group of height adjusting bolts 612 on the left side and a group of height adjusting bolts 613 on the right side, the proximity switch 611 and the height adjusting bolts 612 are fixed on the base 1, a shaft rod 6131 is fixed on the height limiting plate 613, two ends of the shaft rod 6131 are hinged to the head of the height adjusting bolts 612, a transmission rod is connected between the proximity switch 611 and the height limiting plate 613, and the proximity switch 611 is electrically connected with an electric power supply device of the slotting device; the anti-reverse flying module 62 comprises a baffle 621 hinged on the base 1, and a group of buffer devices 622 fixed on the left side and the right side of the base 1 respectively, wherein the elastic moving ends of the buffer devices 622 abut against one side of the baffle 621 away from the roller transmission mechanism 5; when the feeding abnormality that a plurality of groups of bottom plates are overlapped together occurs, the height limiting plate rotates around the shaft rod, so that the transmission rod is driven, the proximity switch is triggered, and the power supply of the equipment is turned off; the height of the heightening bolt on the base can be adjusted through the two nuts, so that the heightening bolt is suitable for the specifications of floors with different heights, the buffer device is a cylinder, certain elastic redundancy is provided for the hinged baffle, the energy of the floor when the feeding is abnormal and flies backwards is absorbed, the vibration caused by the flying backwards is reduced, the machine equipment is prevented from being damaged, and the reliability and the service life of the machine are improved;

the main dust collection shield 7 is arranged above the saw blade cutter group 24 in a covering mode, the main dust collection shield 7 is communicated with dust collection equipment, and a plurality of static elimination rods are mounted on the inner side wall of the main dust collection shield 7;

the discharging cleaning device 8 is arranged behind the roller transmission mechanism 5 at the rear side, the discharging cleaning device 8 comprises a brush roller 81, sliding blocks 82 fixedly connected to two ends of the brush roller 81, second lead screws 83 fixedly connected to the sliding blocks 82 on two moving blocks, two steering boxes 84 connected with rotating shafts of the second lead screws 83, and adjusting shafts 85 penetrating through the two steering boxes 84, and the brush roller 81 is in driving connection with the first motor 583; two ends of the brush roller 81 are hinged to the base 1, and one end of the brush roller 81 is connected with one end of the third roller 54 through a belt or a chain; the brush roller 81 comprises a plurality of brush units 811, and both ends of the brush units 811 are zigzag; the discharging cleaning device 8 further comprises an auxiliary dust absorption shield 86, the auxiliary dust absorption shield 86 is arranged on the upper portion of the brush roller 81 in a covering mode, and the auxiliary dust absorption shield 86 is communicated with dust absorption equipment; the base 1 is provided with a track corresponding to the sliding block 82, and the track comprises two long shafts 87 which are arranged on two sides of the rotating shaft of the second screw rod 83 in parallel.

The base is formed by welding steel plates and sectional materials, is mainly used for installing a frame structure and a motor support and provides support and leveling for the whole machine work part.

Roller drive mechanism includes: the device comprises a motor, an upper transmission roller, a lower transmission roller, a transmission chain wheel and chain, an upper compression roller wheel heightening device, a chain tensioning mechanism and the like. The power transmission process comprises a motor, a transmission shaft, chain wheels and chains at two sides, and four groups of rollers arranged up and down. According to the thickness of the floor, the height adjusting device of the upper compression roller wheel is adjusted, the distance between the upper compression roller wheel and the lower compression roller wheel is slightly smaller than the thickness of the floor, so that a certain pressing force is ensured when the floor is transmitted on the rollers, the transmission is carried out by overcoming the grooving force of the saw blade, the floor is transmitted to the grooving position from the feeding end to be grooved, and then the floor is transmitted out from the discharging port.

Slotting main cutter arbor mechanism includes: the main shaft cutting motor, the servo bounce motor, the eccentric shaft rocker mechanism, the main shaft installation rocker arm bracket, the saw blade cutter set and the like. When the automatic slotting machine works, the motor transmits power to the main shaft through the universal shaft to drive the saw blade cutter set to rotate, the servo jumping motor controls the eccentric shaft to rotate according to program parameter setting, the eccentric shaft drives the rocker, the rocker drives the cutter shaft to install the rocker support, so that the rotating main cutter shaft finishes up-down cutting action, and then the floor transmitted to a machining position is slotted.

The adjustable high-pressure plate mechanism consists of a mounting seat, a screw rod sliding block mechanism and a pressing plate, can adjust the height according to floors with different thicknesses, and ensures that the pressing plate presses the back of the floor when the floor is transmitted to a saw blade processing position, so that the floor can be kept in a stable and non-jumping state during slotting processing.

The flexible carrier roller device comprises a roller mounting seat, a plurality of groups of rollers and cylinders, wherein a steel roller is arranged under a cutting shaft, the two ends of the steel roller are supported by the cylinders and serve as cutting position lower supports, when the thickness of the plate exceeds a theoretical set value, the floor can be pressed downwards by a pressing plate, meanwhile, the steel roller supporting cylinders can be pressed downwards, and the cutting groove depth precision can be guaranteed by the flexible device.

The feeding protection height limiting device prevents floor boards exceeding the designed height or two floor boards from entering the equipment together in a stacked mode. Still possess the safety protection function simultaneously, the transmission roller does not compress tightly the floor during the prevention cutting, leads to the floor to follow the feed inlet departure and injures people.

The pneumatic system is composed of an air source treatment device, a pressure regulating meter, an electromagnetic valve, an adapter, an auxiliary part and a gas pipe pipeline, and provides an air source for each pneumatic component of the whole equipment and can regulate pressure.

The main dust absorption shield is connected with a factory dust absorption system and is mainly used for recycling waste materials cut in the grooving process.

The electric control system consists of electric appliance elements such as a power supply, a safety device, a switch device, a control device, an electric appliance cabinet, a cable and the like. The system is used for controlling each mechanism to operate according to a set process and program rhythm.

The equipment can work alone, the front end and the rear end of the equipment are connected with a feeding conveyor belt and a discharging conveyor belt, and the back of the floor is grooved; the device can also be connected with double-end milling equipment, and the connection process flow is as follows: the floor to be machined is subjected to long-edge machining through a double-end milling machine No. 1, conveyed to dust-free floor back grooving equipment through a conveying device to be grooved at the back, conveyed to a machine No. 2 to be machined at the short edge of the floor, and the whole floor grooving is completed.

Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention can be made without departing from the spirit and scope of the present invention, and these modifications and improvements are within the spirit and scope of the present invention.

Claims (10)

1. A dust free floor back grooving apparatus, the grooving apparatus comprising:

a base (1);

a slotting main cutter shaft mechanism (2);

the adjustable high-pressure plate mechanism (3) is arranged below the slotting main cutter shaft mechanism (2) and is used for pressing the first surface of the floor plate;

the flexible carrier roller device (4) is arranged below the adjustable high-pressure plate mechanism (3) and is used for supporting the second surface of the floor plate;

the grooving device comprises roller transmission mechanisms (5), wherein the number of the roller transmission mechanisms (5) is two, the roller transmission mechanisms are respectively arranged on the front side and the rear side of the grooving main cutter shaft mechanism (2), each roller transmission mechanism (5) comprises an upper roller assembly (51) and a lower roller assembly (52), the upper roller assembly (51) and the lower roller assembly (52) respectively comprise two third rollers (54) which are arranged in parallel, a gap for floor boards to pass through is reserved between the upper roller assembly (51) and the lower roller assembly (52), and the roller transmission mechanisms (5) are driven by a first motor (583) in a matching manner with a chain mechanism;

the main dust collection shield (7) is arranged above a saw blade cutter group (24) in the slotting main cutter shaft mechanism (2) in a covering mode, the main dust collection shield (7) is communicated with dust collection equipment, and a plurality of static elimination rods are arranged on the inner side wall of the main dust collection shield (7); and

and the discharging cleaning device (8) is arranged behind the roller transmission mechanism (5) at the rear side of the discharging cleaning device (8).

2. The dust-free floor back grooving equipment according to claim 1, wherein the discharging and cleaning device (8) comprises a brush roller (81), a sliding block (82) fixedly connected to two ends of the brush roller (81), a second screw rod (83) fixedly connected to the sliding block (82) on two moving blocks, two steering boxes (84) connected to rotating shafts of the second screw rod (83), and an adjusting shaft (85) penetrating through the two steering boxes (84), wherein the brush roller (81) is in driving connection with the first motor (583).

3. Dust-free floor back grooving apparatus according to claim 2, wherein both ends of the brush roller (81) are hinged to the base (1), and one end of the brush roller (81) is connected to one end of the third roller (54) by a belt or a chain.

4. A dust free floor back grooving apparatus as claimed in claim 3 wherein the brush drum (81) comprises a plurality of brush units (811), the two ends of the brush units (811) being serrated.

5. The dust-free floor back grooving apparatus of claim 4, wherein the outfeed cleaning device (8) further comprises an auxiliary suction hood (86), the auxiliary suction hood (86) is disposed over the brush drum (81), the auxiliary suction hood (86) is in communication with a suction device.

6. Dust-free floor back grooving apparatus according to claim 5, wherein the base (1) is provided with rails corresponding to the sliding blocks (82), the rails comprising two long shafts (87) arranged in parallel on both sides of the second screw (83) axis of rotation.

7. The dust-free floor back grooving apparatus of claim 1, wherein the grooving main spindle mechanism (2) comprises a spindle cutting motor (21), a servo bounce motor (22), an eccentric spindle rocker mechanism, a spindle mounting rocker arm bracket (23), a saw blade set (24), the main shaft mounting rocker arm bracket (23) is hinged on the base (1), the saw blade cutter group (24) comprises a main shaft, one side of the spindle penetrating through the spindle mounting rocker arm bracket (23) is in driving connection with the spindle cutting motor (21) through a universal coupling (25), the other side of the main shaft mounting rocker arm bracket (23) is connected with one end of the rocker (26) in the eccentric shaft rocker mechanism, the other end of the rocker (26) is hinged with the eccentric shaft (27) in the eccentric shaft rocker mechanism, the eccentric shaft (27) is in driving connection with the servo jump motor (22).

8. The dust-free floor back grooving equipment according to claim 7, wherein the flexible roller device (4) comprises a first roller (41), a second roller (42) and a first air cylinder (43), the first roller (41) is located right below the saw blade cutter group (24) and used as a lower support of a cutting position, two ends of the first roller (41) are respectively connected with a moving part of the first air cylinder (43), a cylinder body of the first air cylinder (43) is fixed on the base (1), the second roller (42) is fixed on the base (1), and the second roller (42) is distributed on two sides of the first roller (41).

9. Dust-free floor back grooving apparatus according to claim 8, wherein the material of the first roller (41) is steel.

10. The dust-free floor back grooving apparatus of claim 1, further comprising a feed guard height limiting device (6), wherein the feed guard height limiting device (6) is disposed at an inlet of an end of the roller drive mechanism (5) for feeding.