CN113021097A

CN113021097A - A assembly line for producing wooden case

Info

Publication number: CN113021097A
Application number: CN202110246634.5A
Authority: CN
Inventors: 张燕华
Original assignee: Shaoxing Zhuyu Packaging Co ltd
Current assignee: Shaoxing Zhuyu Packaging Co ltd
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2021-06-25
Anticipated expiration: 2041-03-05
Also published as: CN113021097B

Abstract

The invention discloses a production line for producing wooden boxes, which relates to the technical field of wooden box production and comprises a wooden plate polisher, a wooden plate cutting machine, an air dryer, a base, a grinding roller, a dust and debris catching assembly, a transmission worm and a positioning assembly, wherein the top of the base is fixedly provided with the wooden plate polisher, the wooden plate cutting machine and the air dryer from left to right, and transmission chain plates are transversely arranged in the wooden plate polisher, the wooden plate cutting machine and the air dryer; but this scheme is through installing linked dirt bits seizure subassembly in plank polisher, when carrying out production to the wooden case, when polishing to the plank earlier, the roller of polishing can be rotated by the drive, meanwhile, the dirt bits seizure subassembly that its outside first side belt axle accessible driving belt drove and has the second side belt axle rotates, this dirt bits seizure subassembly in can be effectively quick carry out effective absorption to the piece of the in-process of polishing, the cleanliness in the assurance device, pivoted dirt bits seizure subassembly can improve and is stained with the effect of attaching.

Description

A assembly line for producing wooden case

Technical Field

The invention relates to the technical field of wooden box production, in particular to a production line for producing wooden boxes.

Background

The wooden box is a packing box assembled by fumigating and mothproof treatment of wood, and is widely used for packing dangerous goods. The buffer and heat-insulation outer package is mostly used for the buffer and heat-insulation outer package of dangerous goods. Because wood has good buffering performance, high strength, corrosion resistance and good moisture absorption performance, the wood is widely used in the packaging industry, a packaging wooden box is the most common wooden packaging container, and a production line is required when the wooden box is produced.

At present, many some wooden case manufacturing plants all have the production line of one set of self, be provided with on the production line and retrieve the mechanism, carrying out the outside in-process of polishing, the piece of some planks, can accumulate in the device, need not artifical follow-up clearance, it is comparatively troublesome, also do not carry out recycle to the piece simultaneously, the resource has been wasted, the in-process to the plank cutting is being carried out simultaneously, and be equipped with and lead the dirt structure, when cutting, the piece easily splashes everywhere, cause the cleanliness in the device to reduce, need carry out certain improvement.

Disclosure of Invention

The invention aims to provide a production line for producing a wooden box, which can quickly polish and cut a wooden box plate and has the characteristics of good recovery and cleaning.

The technical purpose of the invention is realized by the following technical scheme: a production line for producing wooden boxes comprises a wooden plate grinding machine, a wooden plate cutting machine, an air dryer, a base, a grinding roller, a dust and chip catching assembly, a transmission worm and a positioning assembly, wherein the top of the base is fixedly provided with the wooden plate grinding machine, the wooden plate cutting machine and the air dryer from left to right, transmission chain plates are transversely arranged in the wooden plate grinding machine, the wooden plate cutting machine and the air dryer, bottom grooves and top grooves are formed in the transmission chain plates, and the positioning assembly is arranged in the top grooves;

the positioning assembly comprises a side top spring and a movable positioning shaft;

wherein, side top spring fixed mounting is on the inner wall of top groove, removes location axle slidable mounting in the top groove, and the one end of side top spring and the one end fixed connection who removes the location axle, one side joint of locating component has the plank.

Further, equal fixed mounting has driving motor on the rear side outer wall of plank polisher and plank cutting machine, and there are first side belt axle and pivot in two driving motor's output shaft one end respectively fixed mounting, the one end of first side belt axle and pivot is located the inside difference fixed mounting of plank polisher and plank cutting machine and has the grinding roller and cutting disc, and fixed mounting has the dust catcher on the inner wall of plank polisher.

Further, fixed mounting has the side to retrieve the machine on the rear side outer wall of plank polisher, and the scrap guide mouth has been seted up to the junction between plank polisher and the side is retrieved the machine, the top fixed mounting of side is retrieved the machine has the hydraulic press.

Furthermore, one end of an output shaft of the hydraulic machine is rotatably provided with a compression plate through a rotating shaft, and a discharge hole is fixedly arranged on the outer wall of one side of the side recycling machine.

Further, fixed mounting has the transmission worm wheel on the rear side outer wall of cutting disc, the inside of plank cutting machine rotates through the axle sleeve and installs the transmission worm, the outside fixed mounting of transmission worm has the side-blown fan.

Further, through dust return union coupling between plank polisher and the plank cutting machine, through liquid recovery pipe fixed connection between plank cutting machine and the air dryer, fixed mounting has the liquid recovery pump on the liquid recovery pipe.

Further, the inside of plank polisher is installed the dirt bits through second side belt axle rotation and is caught the subassembly, be connected through driving belt between first side belt axle and the second side belt axle.

Furthermore, the dust and dust catching assembly comprises an installation cover, a dust catching inner column, a dust scraping plate and an installation main shaft, the dust catching inner column is rotatably installed inside the installation cover, a rotary disc is fixedly installed on the outer wall of one side of the dust catching inner column through a connecting rod, and a dust sticking patch is arranged outside the dust catching inner column.

Further, fixed mounting has the side installation piece on the inner wall of installation cover, the side of side installation piece is rotated and is installed the installation main shaft, fixed mounting has the ash scraping plate and twists the answer spring on the installation main shaft, the one end of distortion answer spring and the lateral wall fixed connection of side installation piece, the one end of ash scraping plate and the surface in close contact with of catching dirt inner prop.

Further, the inside fixed mounting of air dryer has the coolant liquid case, and fixed mounting has the electrothermal tube on the inner wall of air dryer, the inside fixed mounting of coolant liquid case has built-in drawing liquid pump, through coolant liquid pipe fixed connection between the top of plank cutting machine and air dryer, the one end of coolant liquid pipe and the top fixed connection of built-in drawing liquid pump, the other end of coolant liquid pipe is located directly over the cutting dish.

Compared with the prior art, the scheme has the beneficial effects that:

1. but this scheme is through installing linked dirt bits seizure subassembly in plank polisher, when carrying out production to the wooden case, when polishing to the plank earlier, the roller of polishing can be rotated by the drive, meanwhile, the dirt bits seizure subassembly that its outside first side belt axle accessible driving belt drove and has the second side belt axle rotates, this dirt bits seizure subassembly in can be effectively quick carry out effective absorption to the piece of the in-process of polishing, the cleanliness in the assurance device, pivoted dirt bits seizure subassembly can improve and is stained with the effect of attaching.

2. This scheme is through installing rotatable dust scraping plate on the subassembly is caught to the dirt bits, when later stage needs clear up to catching the dirt inner prop, can directly rotate outside carousel to can effectively drive and catch the dirt inner prop and rotate, at catching the dirt inner prop and rotate the in-process, dust scraping plate can effectively carry out quick dust cleaning to the pivoted dust catching inner prop and handle, and the deashing is handled effectively fast, can effectively keep catching the adsorption efficiency of dirt inner prop.

3. This scheme is through externally mounted the side recovery machine, at ordinary plank in-process of polishing, can directly open the dust catcher, and the dust catcher can be effectively be polished the unnecessary piece of production to the plank and adsorb to in conduction to the side recovery machine, can open the side recovery machine this moment, can drive the compression board and descend, thereby compress to the saw-dust, thereby reduce its occupation volume, can be convenient for follow-up utilize the saw-dust of retrieving.

4. This scheme is through internally mounted having the transmission worm, and cutting process is being carried out to the plank, and the cutting disc can rotate simultaneously with the transmission worm wheel to drive the transmission worm and rotate, thereby drive the side-blown fan and rotate, can be to the saw-dust side-blown that produces in the cutting process, make saw-dust accessible return dust pipe get into in the plank polisher, adsorb, reasonable in design, excellent in use effect.

5. This scheme is through installing the coolant liquid case in air dryer, and cutting in-process to the plank, can directly open built-in drawing liquid pump and take out the coolant liquid and emit through the coolant liquid pipe, can effectively cool down to the cutting disc, and unnecessary coolant liquid can flow into in the side fender shell, is retrieved to the coolant liquid incasement again by the liquid recovery pipe, not only has to the refrigerated effect of cutting disc, still can make coolant liquid recycle, avoids extravagant.

Drawings

FIG. 1 is a front view for embodying the present invention;

FIG. 2 is a side, partially cut-away view for embodying the present invention;

FIG. 3 is a schematic view of an internal structure for embodying the present invention;

FIG. 4 is a fragmentary top plan view of a drive link plate for embodying the present invention;

FIG. 5 is a schematic perspective view of an abrasive roll and dust collection assembly for use in the practice of the present invention;

FIG. 6 is an enlarged perspective view of a dust capture assembly for use in embodying the present invention;

FIG. 7 is an enlarged schematic view of a structure at A for embodying the present invention;

FIG. 8 is an enlarged schematic view of a structure at B for embodying the present invention;

in the figure: 1. a wood board grinding machine; 2. a dust return pipe; 3. a board cutting machine; 4. a coolant conduit; 5. an air dryer; 6. a transmission chain plate; 7. a base; 8. a side reclaimer; 9. a hydraulic press; 10. a compression plate; 11. a discharge port; 12. a chip guide port; 13. grinding a roller; 14. a dust capture assembly; 141. mounting a cover; 142. an inner dust-catching column; 143. a turntable; 144. a side mounting piece; 145. a torsion return spring; 146. a dust scraping plate; 147. installing a main shaft; 15. a side-blowing fan; 16. cutting the disc; 17. a drive worm; 18. a liquid recovery pipe; 19. a liquid pump is arranged in the device; 20. a vacuum cleaner; 21. a side shield shell; 22. an electric heating tube; 23. a wood board; 24. a bottom groove; 25. a drive belt; 26. a first side belt shaft; 27. a second side belt shaft; 28. a positioning assembly; 281. a side top spring; 282. moving the positioning shaft; 29. and a cooling liquid tank.

Detailed Description

The invention will be further described by means of specific embodiments, which are given by way of illustration only and are not intended to limit the scope of the invention.

Example 1

An assembly line for producing wooden boxes is shown in figures 1-7 and comprises a wooden plate grinding machine 1, a wooden plate cutting machine 3, an air dryer 5, a base 7, a grinding roller 13, a dust and chip catching assembly 14, a transmission worm 17 and a positioning assembly 28, wherein the top of the base 7 is fixedly provided with the wooden plate grinding machine 1, the wooden plate cutting machine 3 and the air dryer 5 from left to right respectively, transmission chain plates 6 are transversely arranged in the wooden plate grinding machine 1, the wooden plate cutting machine 3 and the air dryer 5, bottom grooves 24 and top grooves are formed in the transmission chain plates 6, and the positioning assembly 28 is arranged in the top grooves;

the positioning assembly 28 includes a side top spring 281 and a movable positioning shaft 282;

wherein, the side top spring 281 is fixedly arranged on the inner wall of the top groove, the movable positioning shaft 282 is slidably arranged in the top groove, one end of the side top spring 281 is fixedly connected with one end of the movable positioning shaft 282, and one side of the positioning component 28 is clamped with the wood board 23;

equal fixed mounting has driving motor on plank polisher 1 and plank cutting machine 3's the rear side outer wall, and there are first side belt axle 26 and pivot in two driving motor's output shaft one end respectively fixed mounting, the inside that first side belt axle 26 and the one end of pivot are located plank polisher 1 and plank cutting machine 3 respectively fixed mounting have polishing roller 13 and cutting disc 16, fixed mounting has dust catcher 20 on plank polisher 1's the inner wall.

In practical application, by being provided with the positioning assembly 28, the positioning assembly 28 includes a side top spring 281 and a movable positioning shaft 282, the side top spring 281 is fixedly installed on the inner wall of the top groove, the movable positioning shaft 282 is slidably installed in the top groove, one end of the side top spring 281 is fixedly connected with one end of the movable positioning shaft 282, one side of the positioning assembly 28 is clamped with the wood board 23, the wood board 23 is fixedly installed on the transmission chain plate 6 through the positioning assembly 28, the transmission chain plate 6 is driven to move, and the wood board 23 is conveyed.

Example 2

An assembly line for producing wooden boxes is different from that of embodiment 1 in that, as shown in fig. 1-8, a side recycling machine 8 is fixedly installed on the outer wall of the rear side of a board grinding machine 1, a chip guide port 12 is formed at the joint between the board grinding machine 1 and the side recycling machine 8, a hydraulic machine 9 is fixedly installed at the top of the side recycling machine 8, a compression plate 10 is rotatably installed at one end of an output shaft of the hydraulic machine 9 through a rotating shaft, and a discharge port 11 is fixedly installed on the outer wall of one side of the side recycling machine 8;

a transmission worm wheel is fixedly mounted on the outer wall of the rear side of the cutting disc 16, a transmission worm 17 is rotatably mounted inside the wood board cutting machine 3 through a shaft sleeve, and a side blowing fan 15 is fixedly mounted outside the transmission worm 17;

be connected through dust return pipe 2 between plank polisher 1 and the plank cutting machine 3, through recovery liquid pipe 18 fixed connection between plank cutting machine 3 and the air dryer 5, fixed mounting has the recovery liquid pump on the recovery liquid pipe 18.

In practical application, the board grinding machine 1 is connected with the board cutting machine 3 through the dust return pipe 2, the board cutting machine 3 is fixedly connected with the air dryer 5 through the recovery liquid pipe 18, the recovery liquid pump is fixedly installed on the recovery liquid pipe 18, the dust collector 20 can be directly opened in the ordinary board 23 grinding process, the dust collector 20 can effectively adsorb redundant chips generated by grinding the board 23 and conduct the redundant chips to the side recovery machine 8, the side recovery machine 8 can be opened at the moment, the compression plate 10 can be driven to descend so as to compress the chips, the occupied volume of the chips is reduced, the recovered chips can be conveniently utilized subsequently, the chips enter the board cutting machine 3 after grinding to cut the board 23 at a fixed length, the cutting disc 16 can rotate simultaneously with the transmission worm wheel so as to drive the transmission worm 17 to rotate so as to drive the side blowing fan 15 to rotate, can blow to the saw-dust side that produces in the cutting process, make saw-dust accessible return dust pipe 2 get into in the plank polisher 1, adsorb, reasonable in design, excellent in use effect, cutting the in-process to plank 23, can directly open built-in drawing liquid pump 19 and take out the coolant liquid and emit through coolant liquid pipe 4, can effectively cool down to cutting disc 16, unnecessary coolant liquid can flow into in the side fender shell 21, retrieve to the coolant liquid case 29 in by recovery liquid pipe 18 again, not only have to cutting disc 16 refrigerated effect, still can make coolant liquid recycle, avoid extravagant.

Example 3

A production line for producing wooden boxes, which is different from embodiment 1 in that, as shown in fig. 1-8, a dust catching assembly 14 is rotatably mounted inside the wooden board grinding machine 1 through a second side belt shaft 27, and a first side belt shaft 26 is connected with the second side belt shaft 27 through a transmission belt 25;

the dust catching assembly 14 comprises an installation cover 141, a dust catching inner column 142, a dust scraping plate 146 and an installation main shaft 147, the dust catching inner column 142 is rotatably installed inside the installation cover 141, a rotary table 143 is fixedly installed on the outer wall of one side of the dust catching inner column 142 through a connecting rod, a dust sticking plaster is arranged outside the dust catching inner column 142, a side installation plate 144 is fixedly installed on the inner wall of the installation cover 141, the installation main shaft 147 is rotatably installed on the side surface of the side installation plate 144, the dust scraping plate 146 and a distortion return spring 145 are fixedly installed on the installation main shaft 147, one end of the distortion return spring 145 is fixedly connected with the side wall of the side installation plate 144, and one end of the dust scraping plate 146 is tightly contacted with the outer surface of the dust catching inner column 142;

the inside fixed mounting of air dryer 5 has coolant liquid case 29, and fixed mounting has electrothermal tube 22 on the inner wall of air dryer 5, the inside fixed mounting of coolant liquid case 29 has built-in drawing liquid pump 19, through coolant liquid pipe 4 fixed connection between the top of plank cutting machine 3 and air dryer 5, the one end of coolant liquid pipe 4 and the top fixed connection of built-in drawing liquid pump 19, the other end of coolant liquid pipe 4 is located directly over cutting disc 16.

In practical application, by installing the dust catching assembly 14, the dust catching assembly 14 is composed of the installation cover 141, the dust catching inner column 142, the dust scraping plate 146 and the installation main shaft 147, when the wood board 23 enters the wood board polisher 1, the polishing roller 13 can be driven to rotate when the wood board is polished first, meanwhile, the first side belt shaft 26 outside the wood board can drive the dust catching assembly 14 with the second side belt shaft 27 to rotate through the transmission belt 25, the dust catching inner column 142 in the dust catching assembly 14 can effectively and quickly absorb the chips in the polishing process, the cleanliness in the device is ensured, the rotating dust catching assembly 14 can improve the attaching effect, after the cutting, plank 23 gets into in the air dryer 5, open electrothermal tube 22 and carry out the drying to plank 23, the plank 23 processing back of difference in the process, assemble the formation box to plank 23, need clear up when catching dirt inner prop 142 in the later stage, can directly rotate outside carousel 143 to can effectively drive and catch dirt inner prop 142 and rotate, in catching dirt inner prop 142 rotation in-process, scrape hawk 146 and can effectively carry out quick dust removal to pivoted and catch dirt inner prop 142 and handle, the deashing is handled quick effectively, can effectively keep catching the adsorption efficiency of dirt inner prop 142.

The working principle is that the wood board 23 is fixedly arranged on the transmission chain plate 6 through the positioning component 28, the transmission chain plate 6 is driven to move, the wood board 23 is conveyed, the wood board 23 enters the wood board polisher 1, the polishing roller 13 can be driven to rotate when the wood board is polished, meanwhile, the first side belt shaft 26 outside the wood board can drive the dust catching component 14 with the second side belt shaft 27 to rotate through the transmission belt 25, the dust catching inner column 142 in the dust catching component 14 can effectively and quickly absorb chips in the polishing process, the cleanliness in the device is ensured, the rotating dust catching component 14 can improve the attaching effect, the dust collector 20 can be directly opened in the ordinary wood board 23 polishing process, the dust collector 20 can effectively absorb redundant chips generated by polishing the wood board 23 and conduct the redundant chips into the side recovery machine 8, the side recovery machine 8 can be opened at the moment, the compression plate 10 can be driven to descend, so that wood chips are compressed, the occupied volume of the wood chips is reduced, the recovered wood chips can be conveniently utilized subsequently, the wood chips enter the wood board cutting machine 3 after being polished and are cut at a fixed length for the wood board 23, the cutting disc 16 can rotate simultaneously with the transmission worm wheel in the cutting process, so that the transmission worm 17 is driven to rotate, the side blowing fan 15 is driven to rotate, the wood chips generated in the cutting process can be blown to the side, the wood chips can enter the wood board polishing machine 1 through the dust return pipe 2 to be adsorbed, the design is reasonable, the use effect is good, in the cutting process for the wood board 23, the built-in liquid pump 19 can be directly opened to pump out the cooling liquid to be discharged through the cooling liquid guide pipe 4, the cutting disc 16 can be effectively cooled, redundant cooling liquid can flow into the side blocking shell 21 and is recovered to the cooling liquid tank 29 through the, not only has the refrigerated effect to cutting disc 16, still can make coolant liquid recycle, avoid extravagant, after the cutting, plank 23 gets into in the air dryer 5, open electrothermal tube 22 and carry out the drying to plank 23, the plank 23 processing back of difference in the process, assemble the formation box to plank 23, need clear up to catching dirt inner prop 142 in the later stage, can directly rotate outside carousel 143, thereby can effectively drive and catch dirt inner prop 142 and rotate, at the rotation in-process of catching dirt inner prop 142, scrape hawk 146 and can effectively carry out quick dust removal to pivoted dust catching inner prop 142 and handle, the deashing is handled quick effectively, can effectively keep the adsorption efficiency who catches dirt inner prop 142.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides an assembly line for producing wooden case, its characterized in that, includes plank polisher (1), plank cutting machine (3), air dryer (5), base (7), grinds roller (13), dirt bits and catches subassembly (14), transmission worm (17) and locating component (28), its characterized in that: the wood board grinding machine (1), the wood board cutting machine (3) and the air dryer (5) are fixedly mounted on the top of the base (7) from left to right respectively, transmission chain plates (6) are transversely arranged inside the wood board grinding machine (1), the wood board cutting machine (3) and the air dryer (5), bottom grooves (24) and top grooves are formed in the transmission chain plates (6), and positioning assemblies (28) are arranged in the top grooves;

the positioning component (28) comprises a side top spring (281) and a movable positioning shaft (282);

wherein, side top spring (281) fixed mounting is on the inner wall of top groove, removes location axle (282) slidable mounting in the top groove, and the one end of side top spring (281) and the one end fixed connection who removes location axle (282), one side joint of locating component (28) have plank (23).

2. A production line for producing wooden boxes according to claim 1, wherein the rear outer walls of the wooden grinding machine (1) and the wooden cutting machine (3) are fixedly provided with driving motors, one ends of output shafts of the two driving motors are respectively fixedly provided with a first side belt shaft (26) and a rotating shaft, one ends of the first side belt shaft (26) and the rotating shaft are located inside the wooden grinding machine (1) and the wooden cutting machine (3) and are respectively fixedly provided with a grinding roller (13) and a cutting disc (16), and the inner wall of the wooden grinding machine (1) is fixedly provided with a dust collector (20).

3. The production line for producing the wooden boxes according to claim 2, wherein a side recycling machine (8) is fixedly mounted on the outer wall of the rear side of the wooden board grinding machine (1), a chip guide port (12) is formed in the joint between the wooden board grinding machine (1) and the side recycling machine (8), and a hydraulic machine (9) is fixedly mounted at the top of the side recycling machine (8).

4. A production line for producing wooden boxes according to claim 3, wherein one end of the output shaft of the hydraulic machine (9) is rotatably provided with a compression plate (10) through a rotating shaft, and the outer wall of one side of the side recycling machine (8) is fixedly provided with a discharge hole (11).

5. A production line for producing wooden boxes according to claim 4, wherein a transmission worm gear is fixedly mounted on the outer wall of the rear side of the cutting disc (16), a transmission worm (17) is rotatably mounted inside the wooden board cutting machine (3) through a shaft sleeve, and a side blowing fan (15) is fixedly mounted outside the transmission worm (17).

6. A production line for producing wooden boxes according to claim 5, wherein the wooden grinding machine (1) is connected with the wooden cutting machine (3) through a dust return pipe (2), the wooden cutting machine (3) is fixedly connected with the air dryer (5) through a recovery liquid pipe (18), and a recovery liquid pump is fixedly mounted on the recovery liquid pipe (18).

7. A production line for wooden boxes according to claim 6, characterized in that the interior of the wooden sanding machine (1) is rotatably mounted with a dust catching assembly (14) by a second side belt shaft (27), the first side belt shaft (26) and the second side belt shaft (27) being connected by a transmission belt (25).

8. The production line for the wooden boxes as claimed in claim 7, wherein the dust and debris catching assembly (14) is composed of a mounting cover (141), an inner dust catching column (142), a dust scraping plate (146) and a mounting main shaft (147), the inner dust catching column (142) is rotatably mounted inside the mounting cover (141), a rotary disc (143) is fixedly mounted on the outer wall of one side of the inner dust catching column (142) through a connecting rod, and a dust sticker is arranged outside the inner dust catching column (142).

9. The production line for the wooden boxes as claimed in claim 8, wherein a side mounting piece (144) is fixedly mounted on the inner wall of the mounting cover (141), a mounting main shaft (147) is rotatably mounted on the side surface of the side mounting piece (144), a dust scraping plate (146) and a torsion return spring (145) are fixedly mounted on the mounting main shaft (147), one end of the torsion return spring (145) is fixedly connected with the side wall of the side mounting piece (144), and one end of the dust scraping plate (146) is tightly contacted with the outer surface of the dust catching inner column (142).

10. The production line for the wooden boxes according to claim 9, wherein a cooling liquid tank (29) is fixedly installed inside the air dryer (5), an electric heating pipe (22) is fixedly installed on the inner wall of the air dryer (5), a built-in liquid pump (19) is fixedly installed inside the cooling liquid tank (29), the wooden board cutting machine (3) is fixedly connected with the top of the air dryer (5) through a cooling liquid guide pipe (4), one end of the cooling liquid guide pipe (4) is fixedly connected with the top of the built-in liquid pump (19), and the other end of the cooling liquid guide pipe (4) is located right above the cutting disc (16).