CN113857991A

CN113857991A - Special cylindrical grinding machine for glass fiber reinforced plastic lift pipe

Info

Publication number: CN113857991A
Application number: CN202111252454.4A
Authority: CN
Inventors: 王连炜
Original assignee: Henan Enbis Composite Material Co ltd
Current assignee: Henan Enbis Composite Material Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2021-12-31

Abstract

The invention relates to a grinding machine technology, which is used for solving the problems that grinding effect is influenced by the fact that a grinding belt of a grinding machine is blocked, excessive power is consumed for dust collection in the grinding process, and the position of a glass fiber reinforced plastic circular tube is easy to deviate; the first reciprocating screw rod drives the gas injection pipe to contract and stretch, so that the gas injection pipe stores outside air in the rubber bag to form air pressure difference to remove debris particles attached to the polishing abrasive belt; the air suction pipe is kept in an air suction state all the time by the opposite expansion and contraction states of the air injection pipes of two adjacent sanding machines, so that the collection treatment is carried out on the fragments generated in the sanding process, and the collection of the particles of the fragments does not consume redundant power resources; the position of the glass fiber reinforced plastic round pipe is limited by the first limiting frame and the second limiting frame, so that the glass fiber reinforced plastic round pipe cannot deviate in the polishing process.

Description

Special cylindrical grinding machine for glass fiber reinforced plastic lift pipe

Technical Field

The invention relates to a sander technology, in particular to an external cylindrical sander special for a glass fiber reinforced plastic lift pipe.

Background

The grinding machine is suitable for crushing and shaping soft or medium or hard and extremely hard materials, and is widely applied to various ores, cement, refractory materials, bauxite clinker, carborundum, glass raw materials, machine-made building sand, stone and various metallurgical slags.

In the prior art, in the process of polishing a glass fiber reinforced plastic circular tube by a polishing abrasive belt, chip particles generated by polishing are easily filled in a concave position of a rough surface on the polishing abrasive belt under the action of mutual extrusion of the polishing abrasive belt and the glass fiber reinforced plastic circular tube, so that the friction between the polishing abrasive belt and the glass fiber reinforced plastic circular tube is weakened, the polishing effect on the glass fiber reinforced plastic circular tube is influenced, the time consumed for polishing the glass fiber reinforced plastic circular tube to a required shape is prolonged, and the working efficiency is reduced; the glass reinforced plastic circular tube grinding process is easy to generate more dust particles, the dust particles scatter around the working environment of workers, adverse effects are caused on the health of the workers, fan equipment is mostly adopted to absorb dust when the dust generated in the glass reinforced plastic circular tube grinding process is treated, more power resources are consumed by the fan equipment in the working process, part of dust is easy to remain at the position of the fan when the dust passes through the fan equipment, the rotation of the fan is hindered, and the dust absorption effect is reduced after the rotation speed of the fan is hindered and slowed down; when the glass steel pipe was polished and is operated, more directly place the glass steel pipe on the backing roll, utilize the in-process of polishing the friction between abrasive band and the glass steel pipe to make the glass steel pipe carry out the removal of position on the backing roll, each position department that makes the glass steel pipe all can receive and polish, nevertheless polish in-process glass steel pipe position and not receive the restriction, easily the position on the backing roll takes place to remove when receiving external force effect, make glass steel pipe surface part position not receive polishing, influence the normal use of follow-up glass steel pipe, and partial glass steel pipe both ends integrated into one piece has the connecting piece, be not convenient for directly place the operation of polishing on the backing roll.

In view of the above technical problem, the present application proposes a solution.

Disclosure of Invention

The invention aims to drive the gas injection pipe to contract and stretch through the first reciprocating screw rod, so that the gas injection pipe stores outside air in the rubber bag to form air pressure difference to remove debris particles attached to a polishing abrasive belt; the air suction pipe is kept in an air suction state all the time by the opposite expansion and contraction states of the air injection pipes of two adjacent sanding machines, so that the collection treatment is carried out on the fragments generated in the sanding process, and the collection of the particles of the fragments does not consume redundant power resources; the outer circle grinding machine special for the glass fiber reinforced plastic lift pipe is provided by limiting the horizontal and longitudinal positions of the glass fiber reinforced plastic circular pipe on the supporting roller through the first limiting frame and the second limiting frame, so that the glass fiber reinforced plastic circular pipe cannot deviate due to the action of external force in the grinding process on the supporting roller, the grinding effect is affected due to the fact that the grinding abrasive belt of the grinding machine is blocked, and the problems that the dust is collected and consumes redundant electric power and the glass fiber reinforced plastic circular pipe is prone to deviating in the grinding process are solved.

The purpose of the invention can be realized by the following technical scheme:

an excircle sanding machine special for a glass fiber reinforced plastic lift pipe comprises a base plate, a support frame, a sanding belt, a driving motor, a supporting roller and a glass fiber reinforced plastic round pipe, wherein the support frame is connected to the upper surface of the base plate;

the cleaning mechanism comprises a second rotating wheel, the outer side wall of the second rotating wheel is in transmission connection with a third rotating wheel through a transmission belt, a second supporting seat is connected to the upper surface of the bottom plate at a position corresponding to the third rotating wheel, a first reciprocating screw rod is rotatably connected to the outer side wall of the second supporting seat at a position corresponding to the third rotating wheel, the outer side wall of the first reciprocating screw is connected with a first movable plate in a sliding way, the middle position of one side of the outer side wall of the first movable plate is connected with a gas injection pipe, the outer side wall of the second supporting seat, which is close to the outer side of the gas injection pipe, is connected with a first limiting rod, one end of the gas injection pipe, which is far away from the first movable plate, is connected with a rubber bag through a gas guide pipe, the upper end of the rubber bag is connected with a cleaning box, the rear surface of the cleaning box is provided with a mounting hole corresponding to the position of the polishing abrasive belt, and the middle position of one side of the outer side wall of the rubber bag is connected with a barometer.

As a preferred embodiment of the present invention, a dust-settling mechanism is arranged on the upper surface of the bottom plate at a position corresponding to the gas injection pipe;

the dust fall mechanism comprises a connecting pipe, a first check valve is connected to the position, close to the gas injection pipe, of the outer side wall of the connecting pipe, a vent pipe is connected to one end, away from the gas injection pipe, of the connecting pipe, a dust collection box is connected to the outer side wall of the vent pipe, a first rotating wheel is connected to the position, corresponding to the driving motor, of the outer side wall of the dust collection box in a rotating mode through a rotating shaft, a filter screen frame is connected to the position, corresponding to the vent pipe, of the inner side wall of the dust collection box, sliding grooves are formed in the upper surface and the lower surface of the inner portion of the filter screen frame, a cleaning rod is connected to the inner side wall of the sliding grooves in a sliding mode, a regulating rod is connected to the middle position of the outer side wall of the cleaning rod in a rotating mode through a rotating shaft, a rotating disc is connected to the other side of the rear surface of the regulating rod in a rotating mode through a rotating shaft, a first supporting seat is connected to the upper surface of the inner portion of the dust collection box corresponding to the rotating disc in a rotating mode, a second gear is connected to the middle position of the rear surface of the rotating disc through a rotating shaft, the inner side wall of the dust collection box is connected with a first gear through a rotating shaft at a position corresponding to the first rotating wheel.

As a preferred embodiment of the invention, an adjusting mechanism is arranged on the upper surface of the bottom plate at a position corresponding to the round glass fiber reinforced plastic pipe;

the adjusting mechanism comprises a third supporting seat, a second reciprocating screw is rotatably connected above the outer side wall of the third supporting seat corresponding to the position of the polishing abrasive belt, the outer side wall of the second reciprocating screw is slidably connected with a second movable plate, the outer side wall of the third supporting seat is connected with a second limiting rod close to the lower part of the second reciprocating screw, a first limiting frame is integrally formed at one end of the second movable plate corresponding to the glass fiber reinforced plastic circular tube, rolling grooves are formed in the middle positions of the inner side wall and the inner lower surface of the first limiting frame, the inner side wall of each rolling groove is rotatably connected with a rolling roller through a rotating shaft, the inner upper surface of the first limiting frame is slidably connected with an extrusion plate through a third limiting rod, and a first spring is sleeved on the outer side wall of the third limiting rod;

the bottom plate upper surface corresponds the one end of glass steel pipe is connected with the backup pad, the backup pad lateral wall corresponds the other end of glass steel pipe is connected with electric putter, electric putter keeps away from the one end of backup pad is connected with the connecting plate, the connecting plate lateral wall is kept away from one side sliding connection of backup pad has the fourth gag lever post, fourth gag lever post lateral wall cover is equipped with the second spring, the fourth gag lever post is kept away from the one end of backup pad also is connected with the spacing frame of second.

As a preferred embodiment of the invention, the front surface of the cleaning box is connected with a dust falling box, two sides of the outer side wall of the dust falling box are both connected with dust filtering nets, the dust filtering nets are rotatably connected on the inner side wall of the dust falling box through rotating shafts, two sides of the outer side wall of each dust filtering net are integrally formed with connecting buckles, and two sides of the inner side wall of the dust falling box are provided with buckle grooves corresponding to the connecting buckles.

As a preferred embodiment of the present invention, a communicating valve is connected to a position of the lower surface of the cleaning box corresponding to the rubber bladder, a second one-way valve is connected to a position of the outer sidewall of the air duct corresponding to the rubber bladder, a first sliding hole is formed in a position of the outer sidewall of the first movable plate corresponding to the first reciprocating screw, and a first sliding member is connected to an inner sidewall of the first sliding hole.

As a preferred embodiment of the present invention, the outer side wall of the cleaning rod is connected with a plurality of bristles uniformly distributed at positions corresponding to the filter screen frame, the upper end and the lower end of the cleaning rod corresponding to the inner side of the chute are connected with strip-shaped sliding blocks, and the first rotating wheel is in transmission connection with the output end of the driving motor through a transmission belt.

As a preferred embodiment of the present invention, a through hole is formed in the middle position of the lower surface of the extrusion plate, the inner side wall of the through hole is rotatably connected to a rolling roller through a rotating shaft, the lengths of the first limiting frame and the second limiting frame are both greater than the diameter of the circular glass fiber reinforced plastic tube, a second sliding hole is formed in the outer side wall of the second movable plate corresponding to the second limiting rod and the second reciprocating screw, and a second sliding member is connected to the inner side wall of the second sliding hole corresponding to the second reciprocating screw.

As a preferred embodiment of the invention, the use method of the external grinding machine special for the glass fiber reinforced plastic lifting pipe comprises the following steps:

the method comprises the following steps: a driving motor connected to the upper surface of the bottom plate drives a first reciprocating screw coaxial with the third rotating wheel to rotate through mutual transmission between a second rotating wheel and a third rotating wheel on an output end, so that a first movable plate sliding on the outer side wall of the first reciprocating screw through a first sliding part performs reciprocating motion, the reciprocating motion is limited by the first reciprocating screw and a first limiting rod, and a gas injection pipe is driven to contract and stretch, so that the gas injection pipe absorbs outside air and guides the air into the rubber bag from the position of a gas guide pipe, a barometer on the outer side wall of the rubber bag detects the air pressure inside the rubber bag, and transmits a signal to a sanding machine control device when detecting that the air pressure value reaches a set value, the control device transmits a signal to a communicating valve on the lower surface of the cleaning box, so that the communicating valve is opened, and the air flow inside the rubber bag can be blown into the cleaning box to clean the abrasive belt extending into the cleaning box from the position of a mounting hole, the cleaned falling dust slides into the dust falling box along the slide way under the impact action of the airflow, and the dust filtering net filters the dust in the airflow;

step two: the air injection pipe can suck outside air through the connecting pipe in the process of stretching under the action of the first movable plate, the vent pipe connected with one end of the connecting pipe can extend to the position where the sanding belt and the glass fiber reinforced plastic circular pipe rub with each other, dust generated by sanding can be transmitted into the dust collection box along the vent pipe under the driving of air flow, and the dust collection box is transmitted to the position of the connecting pipe along the vent pipe on the other side of the dust collection box after being filtered by a filter screen on a filter screen frame, a first rotating wheel on the outer side wall of the dust collection box is in transmission connection with a second rotating wheel on the output end of the driving motor through a transmission belt, so that a first gear coaxial with the first rotating wheel rotates along with the transmission belt, and a second gear mutually embedded with the first gear is driven to rotate, a turntable coaxial with the second gear rotates under the support of the first support seat, and the cleaning rod can be pulled by the adjusting rod to slide on a sliding chute on the inner side of the filter screen frame in the rotating process of the turntable, cleaning the filter screen on the filter screen frame by the cleaning rod;

step three: a second rotating wheel on the output end of a driving motor drives a rotating wheel at the position of a sanding belt to rotate through a transmission belt, a rotating shaft of the rotating wheel is connected with a second reciprocating lead screw to drive a second reciprocating lead screw to rotate under the support of a third support seat, so that a second movable plate connected to the outer side wall of the second reciprocating lead screw through a second sliding part makes reciprocating motion, the reciprocating motion process of the second movable plate is limited by the second reciprocating lead screw and a second limiting rod, a support plate is connected with a second limiting frame through a second spring on the outer side wall of a connecting plate connected with an electric push rod, the motion of the second limiting frame is limited by a fourth limiting rod, the second limiting frame is in close contact with one end of a glass fiber reinforced plastic circular tube, a first limiting frame integrally formed at one end of the second movable plate is in close contact with the other end of the glass fiber reinforced plastic circular tube, and the first limiting frame and the second limiting frame are both placed at the middle position of one end of the glass fiber reinforced plastic circular tube, the rolling rollers on the inner side walls of the first limiting frame and the second limiting frame can rotate along with the rotation of the glass fiber reinforced plastic round pipe, and the extrusion plates on the upper surfaces inside the first limiting frame and the second limiting frame limit the position of the glass fiber reinforced plastic round pipe on the supporting roller under the action of the first spring.

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

1. the first reciprocating screw rod drives the gas injection pipe to contract and stretch, so that the gas injection pipe stores outside air in the rubber bag and discharges the outside air when the rubber bag expands and reaches a certain pressure difference with the outside environment, and the impact airflow generated by the air pressure difference is used for removing the debris particles attached to the polishing abrasive belt, so that the polishing effect of the polishing abrasive belt on the glass fiber reinforced plastic circular pipe is not influenced;

2. the air suction pipe keeps the air suction state all the time through the opposite telescopic states of the air injection pipes of two adjacent grinding machines, the debris particles generated by grinding can be guided into the dust collection box under the flowing of air flow, and the debris generated in the grinding process is collected and treated, so that the debris can not scatter around the working environment, the adverse effect on the health of workers is caused, the collection of the debris particles does not consume redundant power resources, and the dust collection device is more environment-friendly;

3. through the restriction of first spacing frame and second spacing frame to glass steel pipe horizontal and longitudinal position on the backing roll, the skew of position can not take place because of the effect of external force to the in-process that makes glass steel pipe polish on the backing roll, leads to glass steel pipe part position not received to polish, influences follow-up glass steel pipe's normal use.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a main body structure view of the present invention;

FIG. 2 is a rear view of the present invention shown in FIG. 1;

FIG. 3 is a block diagram of the purge bin of the present invention;

FIG. 4 is a rear view structural diagram of FIG. 3 in accordance with the present invention;

fig. 5 is a structural view of a dust fall mechanism of the present invention;

FIG. 6 is a view showing the construction of the dust box of the present invention;

FIG. 7 is a view showing an inner structure of the dust box of the present invention;

FIG. 8 is a schematic view of the first and second gears of the present invention;

FIG. 9 is an enlarged view of portion A of FIG. 8 according to the present invention;

FIG. 10 is a block diagram of the adjustment mechanism of the present invention;

FIG. 11 is a structural view of a second movable plate of the present invention;

fig. 12 is a view showing the structure of the supporting plate of the present invention.

In the figure: 1. a base plate; 2. a support frame; 3. sanding an abrasive belt; 4. a dust falling mechanism; 41. a connecting pipe; 42. a breather pipe; 43. a first check valve; 44. a dust collection box; 45. a first runner; 46. cleaning the rod; 47. a screen frame; 48. a chute; 49. adjusting a rod; 410. a turntable; 411. a first support base; 412. a first gear; 413. a second gear; 5. a cleaning mechanism; 51. a second runner; 52. a transmission belt; 53. a second support seat; 54. a third rotating wheel; 55. a first reciprocating screw; 56. a gas injection pipe; 57. a first movable plate; 58. cleaning the box; 59. a first limit rod; 510. an air duct; 511. a dust falling box; 512. a rubber bladder; 513. a dust filter screen; 514. a barometer; 515. mounting holes; 6. a drive motor; 7. an adjustment mechanism; 71. a support plate; 72. a third support seat; 73. a second limiting rod; 74. a second reciprocating screw; 75. a second movable plate; 76. a first limit frame; 77. a rolling roller; 78. a rolling groove; 79. a pressing plate; 710. a third limiting rod; 711. a first spring; 712. a second spring; 713. an electric push rod; 714. a fourth limiting rod; 715. a connecting plate; 716. a second limit frame; 8. a support roller; 9. glass steel pipe.

Detailed Description

The technical solutions of the present invention will be described in detail and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

referring to fig. 1-4, the excircle sanding machine special for the glass fiber reinforced plastic lift pipe comprises a bottom plate 1, a support frame 2, a sanding belt 3, a driving motor 6, a supporting roller 8 and a glass fiber reinforced plastic circular pipe 9, wherein the support frame 2 is connected to the upper surface of the bottom plate 1, the sanding belt 3 is arranged on one side of the outer side wall of the support frame 2, the driving motor 6 is connected to the position, close to the sanding belt 3, of the upper surface of the bottom plate 1, the supporting roller 8 is connected to the upper surface of the bottom plate 1, close to the front part of the sanding belt 3, and the glass fiber reinforced plastic circular pipe 9 is arranged on the outer side wall of the supporting roller 8;

one side of a support frame 2 connected to a bottom plate 1 is rotatably connected with two rotating wheels through a rotating shaft, a polishing abrasive belt 3 is sleeved on the outer sides of the two rotating wheels, the rotating wheels are in transmission with a second rotating wheel 51 on the output end of a driving motor 6 through a transmission belt 52 to drive the rotating wheels to rotate, so that the polishing abrasive belt 3 performs outer circle polishing operation on a glass fiber reinforced plastic circular tube 9 placed on a support roller 8, and the second rotating wheel 51 connected to the output end of the driving motor 6 is of a three-layer structure;

the upper surface of the base plate 1 is provided with a cleaning mechanism 5 corresponding to the position of the driving motor 6, the cleaning mechanism 5 comprises a second rotating wheel 51, the outer side wall of the second rotating wheel 51 is in transmission connection with a third rotating wheel 54 through a transmission belt 52, the upper surface of the base plate 1 is connected with a second supporting seat 53 corresponding to the position of the third rotating wheel 54, the second supporting seat 53 is distributed at two ends of a first reciprocating screw 55 to support the first reciprocating screw 55, the outer side wall of the second supporting seat 53 is in rotary connection with the first reciprocating screw 55 corresponding to the position of the third rotating wheel 54, the outer side wall of the first reciprocating screw 55 is in sliding connection with a first movable plate 57, the outer side wall of the first movable plate 57 is provided with a first sliding hole corresponding to the position of the first reciprocating screw 55, and the inner side wall of the first sliding hole is connected with a first sliding part, so that the first movable plate 57 slides in the groove of the first reciprocating screw 55 to perform reciprocating motion through the first sliding part, the middle position of one side of the outer side wall of the first movable plate 57 is connected with a gas injection pipe 56, the outer side wall of the second support seat 53, which is close to the outer side of the gas injection pipe 56, is connected with a first limiting rod 59, the two first limiting rods 59 and the first reciprocating screw 55 limit the movement of the first movable plate 57, so that the first movable plate 57 keeps moving horizontally with the second support seat 53 all the time, one end of the gas injection pipe 56, which is far away from the first movable plate 57, is connected with a rubber bag 512 through a gas guide pipe 510, the upper end of the rubber bag 512 is connected with a cleaning box 58, the lower surface of the cleaning box 58 is connected with a communicating valve at a position corresponding to the rubber bag 512, the outer side wall of the gas guide pipe 510 is connected with a second one-way valve at a position corresponding to the rubber bag 512, so that gas flow can only flow into the rubber bag 512 from the gas injection pipe 56 and is difficult to flow out, and the expanded rubber bag 512 after gas is introduced can not flow back into the gas injection pipe 56 from the position of the gas guide pipe 510, the rear surface of the cleaning box 58 is provided with a mounting hole 515 corresponding to the position of the polishing abrasive belt 3, the polishing abrasive belt 3 is embedded in the cleaning box 58 through the mounting hole 515, the gap between the polishing abrasive belt and the inner wall of the mounting hole 515 is small, the middle position of one side of the outer side wall of the rubber bag 512 is connected with an air pressure gauge 514, the air pressure gauge 514 can detect the air pressure in the rubber bag 512, and the rubber bag 512 is deflated from the upper end when reaching the corresponding air pressure value, the front surface of the cleaning box 58 is connected with a dust falling box 511, two sides of the outer side wall of the dust falling box 511 are both connected with a dust filtering net 513, the dust filtering net 513 is rotatably connected to the inner side wall of the dust falling box 511 through a rotating shaft, two sides of the outer side wall of the dust filtering net 513 are integrally formed with connecting buckles, and two sides of the inner side wall of the dust falling box 511 are provided with buckle grooves corresponding to the connecting buckles;

in the prior art, in the process that the grinding abrasive belt 3 grinds the glass fiber reinforced plastic circular tube 9, chip particles generated by grinding are easy to fill in a concave position of a rough surface on the grinding abrasive belt 3 under the action of mutual extrusion of the chip particles and the grinding abrasive belt, so that the friction between the grinding abrasive belt 3 and the glass fiber reinforced plastic circular tube 9 is weakened, the grinding effect on the glass fiber reinforced plastic circular tube 9 is influenced, the time consumed for grinding the glass fiber reinforced plastic circular tube 9 to a required shape is prolonged, and the working efficiency is reduced;

the second rotating wheel 51 on the output end of the driving motor 6 can drive the third rotating wheel 54 to rotate through the driving belt 52, so that the first reciprocating screw 55 coaxial with the third rotating wheel 54 rotates, the first movable plate 57 reciprocates on the first reciprocating screw 55 to extrude and stretch the gas injection pipe 56, when the gas injection pipe 56 is stretched, air sucked from the grinding positions of the grinding abrasive belt 3 and the glass fiber reinforced plastic circular pipe 9 at one end of the gas injection pipe 56 is guided out to the inside of the rubber bladder 512 through the gas guide pipe 510 from the other end when the gas injection pipe 56 is extruded, the second one-way valve on the gas guide pipe 510 is closed when the gas is sucked, the first one-way valve 43 on the connecting pipe 41 is opened, so that the external air can be sucked only from the position of the gas guide pipe 42 by the gas injection pipe 56, the first one-way valve 43 on the connecting pipe 41 is closed when the gas is injected, the second one-way valve on the gas guide pipe 510 is opened, and the gas in the gas injection pipe 56 can only be injected into the inside of the rubber bladder 512, when the air pressure in the rubber bag 512 reaches the maximum set value under the detection of the barometer 514, the communicating valve at the upper end of the rubber bag 512 is controlled by the sanding machine control device to transmit signals to control the opening of the communicating valve at the upper end of the rubber bag 512, so that the air in the rubber bag 512 is quickly discharged under the action of the pressure difference between the inside and the outside of the rubber bag 512, the sanding belt 3 extending into the cleaning box 58 from the position of the mounting hole 515 is impacted, the chip particles embedded in the concave position of the rough surface of the sanding belt 3 are separated from the sanding belt 3 under the impact, the effect of cleaning the sanding belt 3 is achieved, the internal air pressure in the air flow releasing process of the rubber bag 512 is reduced, when the internal air pressure is reduced to the minimum set value, the communicating valve at the upper end of the rubber bag 512 is controlled by the sanding machine control device to close to store the internal air again, the chip particles impacted in the air flow impacting process can be driven by the air flow to be transmitted to the dust falling box 511, the air current flows out from the positions of the dust filtering nets 513 on the two sides of the dust falling box 511, the fragment particles in the air current are blocked and accumulated inside the dust falling box 511, and the part of the flying fragment particles can fall into the dust falling box 511 after self settlement, so that the influence of the fragment particles on the surface roughness of the polishing abrasive belt 3 is reduced, the polishing effect on the glass fiber reinforced plastic circular pipe 9 is stronger, and the polishing efficiency on the glass fiber reinforced plastic circular pipe 9 cannot be influenced.

Example 2:

referring to fig. 5-9, a dust settling mechanism 4 is disposed on the upper surface of the base plate 1 at a position corresponding to the gas injection pipe 56;

the dustfall mechanism 4 comprises a connecting pipe 41, a first one-way valve 43 is connected to the position of the outer side wall of the connecting pipe 41 close to an air injection pipe 56, the first one-way valve 43 enables outside air flow to only flow into the position of an air vent pipe 42 and not to flow out, the end of the connecting pipe 41 far away from the air injection pipe 56 is connected with the air vent pipe 42, the outer side wall of the air vent pipe 42 is connected with a dust collection box 44, the position of the outer side wall of the dust collection box 44 corresponding to a driving motor 6 is rotatably connected with a first rotating wheel 45 through a rotating shaft, the first rotating wheel 45 is in transmission connection with a second rotating wheel 51 on the output end of the driving motor 6 through a transmission belt 52, the position of the inner side wall of the dust collection box 44 corresponding to the air vent pipe 42 is connected with a filter screen frame 47, the upper and lower surfaces of the inside of the filter screen frame 47 are both provided with chutes 48, the inner side wall of the chute 48 is connected with a cleaning rod 46, the cleaning rod 46 is dragged by an adjusting rod 49 to slide in the position corresponding to the filter screen frame 47, a plurality of bristles which are uniformly distributed, the brush hair can clean the filter screen in the sliding process, the upper and lower ends of the cleaning rod 46 corresponding to the inner side of the sliding slot 48 are connected with strip-shaped sliding blocks, the strip-shaped sliding blocks slide in the sliding slot 48 to enable the cleaning rod 46 to be constantly kept vertical to the upper and lower surfaces in the filter screen frame 47, the middle position of the outer side wall of the cleaning rod 46 is connected with an adjusting rod 49 in a rotating way through a rotating shaft, two ends of the adjusting rod 49 are respectively connected with the rotating disc 410 and the cleaning rod 46 in a rotating way through a rotating shaft, the other side of the rear surface of the adjusting rod 49 is connected with a rotating disc 410 in a rotating way, the upper surface in the dust collection box 44 is connected with a first supporting seat 411 corresponding to the rotating disc 410 in a rotating way, the middle position of the rear surface of the rotating disc 410 is connected with a second gear 413 through a rotating shaft, the rotating disc 410 and the second gear 413 are respectively connected with two sides of the first supporting seat 411 through a rotating shaft, and the position of the inner side wall of the dust collection box 44 corresponding to the first rotating disc 45 is connected with a first gear 412 through a rotating shaft, the first gear 412 and the second gear 413 are perpendicular to each other and are embedded with each other, so that the first gear 412 coaxial with the first rotating wheel 45 can drive the second gear 413 to rotate;

in the prior art, a lot of dust particles are easily generated in the polishing process of the glass fiber reinforced plastic circular tube 9, the dust particles are scattered around the working environment of workers, the body health of the workers is adversely affected, fan equipment is mostly adopted to absorb the dust when the dust generated in the polishing process of the glass fiber reinforced plastic circular tube 9 is treated, the fan equipment consumes a lot of power resources in the working process, part of dust is easily remained at the position of the fan when the dust passes through the fan equipment, the rotation of the fan is hindered, and the dust absorption effect is reduced after the rotation speed of the fan is hindered and slowed down;

the first rotating wheel 45 is in transmission connection with a second rotating wheel 51 on the output end of the driving motor 6 through a transmission belt 52, so that a first gear 412 coaxial with the first rotating wheel 45 rotates, and drives a second gear 413 mutually embedded with the first gear 412 to rotate, a rotating disc 410 coaxial with the second gear 413 rotates under the support of a first supporting seat 411, an adjusting rod 49 on the rotating disc 410 pulls a cleaning rod 46 to slide back and forth in a chute 48 on a filter screen frame 47, the debris particles attached to the filter screen in the filter screen frame 47 are cleaned, the blockage of the filter screen is prevented, the filtering effect on the debris in the air flow and the flowing speed of the air flow are influenced, the debris particles adsorbed from the polishing positions of the polishing abrasive belt 3 and the glass fiber reinforced plastic circular tube 9 along a vent pipe 42 are retained in a dust collection box 44 in the stretching process of an air injection pipe 56, and part of the debris particles attached to the polishing abrasive belt 3 are collected in the dust collection box 511, make the dust granule among the external environment reduce, need not to consume unnecessary power resources among the dust disposal process, environmental protection more, and treatment facility receives the influence of dust less in the processing procedure, can handle the operation for a long time, the one end and two connecting pipes 41 of breather pipe 42 are connected, two connecting pipes 41 are connected with two adjacent gas injection pipes 56 respectively, two gas injection pipes 56 state of stretching out and drawing back is opposite, when one extrudes, another stretches out and draws, make breather pipe 42 keep constantly in the state of absorbing the outside air, it is incessant to the absorption that grinds the production piece granule.

Example 3:

referring to fig. 10-12, an adjusting mechanism 7 is disposed on the upper surface of the bottom plate 1 at a position corresponding to the circular glass fiber reinforced plastic tube 9, the adjusting mechanism 7 includes a third support seat 72, a second reciprocating screw 74 is rotatably connected to a position corresponding to the sanding belt 3 above the outer side wall of the third support seat 72, the length of the second reciprocating screw 74 is the same as the distance between two adjacent sanding belts 3, a second movable plate 75 is slidably connected to the outer side wall of the second reciprocating screw 74, second sliding holes are respectively formed on the outer side wall of the second movable plate 75 at positions corresponding to the second limiting rod 73 and the second reciprocating screw 74, a second sliding member is connected to the inner side wall of the second sliding hole at a position corresponding to the second reciprocating screw 74, a second limiting rod 73 is connected to the outer side wall of the third support seat 72 near the lower portion of the second reciprocating screw 74, the movement of the second movable plate 75 is limited by the second limiting rod 73 and the second reciprocating screw 74, a first limiting frame 76 is integrally formed at one end of the second movable plate 75 corresponding to the round glass fiber reinforced plastic tube 9, rolling grooves 78 are formed in the middle positions of the inner side wall and the inner lower surface of the first limiting frame 76, the inner side wall of each rolling groove 78 is rotatably connected with rolling rollers 77 through rotating shafts, the two rolling rollers 77 on the inner side wall of the first limiting frame 76 are respectively contacted with the upper end and the lower end of the round glass fiber reinforced plastic tube 9 and rotate along with the round glass fiber reinforced plastic tube 9 in the rotating process, the upper surface inside the first limiting frame 76 is slidably connected with a squeezing plate 79 through a third limiting rod 710, a first spring 711 is sleeved on the outer side wall of the third limiting rod 710, the squeezing plate 79 keeps a state of being tightly attached to the round glass fiber reinforced plastic tube 9 constantly under the action of the first spring 711 and gives downward squeezing acting force to the round glass fiber reinforced plastic tube 9 to prevent the round glass fiber reinforced plastic tube 9 from being displaced, a supporting plate 71 is connected to one end of the upper surface of the bottom plate 1 corresponding to the round glass fiber reinforced plastic tube 9, the other end of the outer side wall of the supporting plate 71 corresponding to the glass fiber reinforced plastic round tube 9 is connected with an electric push rod 713, the electric push rod 713 can adjust the distance between the connecting plate 715 and one end of the glass fiber reinforced plastic round tube 9, the end of the electric push rod 713 far away from the supporting plate 71 is connected with the connecting plate 715, one side of the outer side wall of the connecting plate 715 far away from the supporting plate 71 is connected with a fourth limiting rod 714 in a sliding manner, the outer side wall of the fourth limiting rod 714 is sleeved with a second spring 712, one end of the second spring 712 is connected to the connecting plate 715, the other end of the second spring is connected to a second limiting frame 716, one end of the fourth limiting rod 714 far away from the supporting plate 71 is also connected with a second limiting frame 716, the internal structures and the shapes of the second limiting frame 716 and the first limiting frame 76 are the same, the first limiting frame 76 and the second limiting frame 716 are respectively clung to two ends of the glass fiber reinforced plastic round tube 9, the glass fiber reinforced plastic round tube 9 is clamped by the first limiting frame 76 and the second limiting frame 716, a through hole is formed in the middle of the lower surface of the extrusion plate 79, the inner side wall of the through hole is rotatably connected with a rolling roller 77 through a rotating shaft, and the length of each of the first limiting frame 76 and the second limiting frame 716 is larger than the diameter of the round glass fiber reinforced plastic pipe 9;

in the prior art, when the glass fiber reinforced plastic circular tube 9 is polished, the glass fiber reinforced plastic circular tube 9 is mostly and directly placed on the supporting roll 8, the friction between the polishing abrasive belt 3 and the glass fiber reinforced plastic circular tube 9 in the polishing process is utilized to enable the glass fiber reinforced plastic circular tube 9 to move on the supporting roll 8, so that all positions of the glass fiber reinforced plastic circular tube 9 can be polished, but the position of the glass fiber reinforced plastic circular tube 9 in the polishing process is not limited, the glass fiber reinforced plastic circular tube is easy to move on the supporting roll 8 under the action of external force, part of the outer surface of the glass fiber reinforced plastic circular tube 9 is not polished, the normal use of the subsequent glass fiber reinforced plastic circular tube 9 is influenced, and connecting pieces are integrally formed at two ends of the part of the glass fiber reinforced plastic circular tube 9, so that the glass fiber reinforced plastic circular tube 9 is not convenient to be directly placed on the supporting roll 8 for polishing operation;

when the glass fiber reinforced plastic round pipe 9 is placed on the supporting roller 8, two ends of the glass fiber reinforced plastic round pipe 9 are positioned at the outer side of the supporting roller 8 and are not in contact with the supporting roller 8, and two ends of the glass fiber reinforced plastic round pipe 9 are respectively clamped by the first limiting frame 76 and the second limiting frame 716 to limit the transverse movement of the glass fiber reinforced plastic round pipe 9 on the supporting roller 8, the extrusion plates 79 on the inner upper surfaces of the first limiting frame 76 and the second limiting frame 716 extrude the glass fiber reinforced plastic round pipe 9 under the action of the first spring 711, so that the longitudinal movement of the glass fiber reinforced plastic round pipe 9 on the supporting roller 8 is limited, the position deviation cannot occur due to the action of external action force, the outer surface part of the glass fiber reinforced plastic round pipe cannot be polished, the normal use of the subsequent glass fiber reinforced plastic round pipe 9 is influenced, the contact positions of the first limiting frame 76 and the second limiting frame 716 and the glass fiber reinforced plastic round pipe 9 are rotatably connected with the rolling rollers 77, the friction can not occur with the glass steel circular tube 9, the first limiting frame 76 can push the glass steel circular tube 9 to move slowly on the supporting roll 8 under the action of the second movable plate 75, so that a plurality of sanding machines arranged together can respectively polish an area of the glass steel circular tube 9 with long length, the glass steel circular tube 9 is not required to be integrally placed on the supporting roll 8, and the glass steel circular tube 9 is more suitable for the glass steel circular tube 9 with connecting pieces connected to two ends of the glass steel circular tube.

When the invention is used, a driving motor 6 connected to the upper surface of a bottom plate 1 drives a first reciprocating lead screw 55 coaxial with a third rotating wheel 54 to rotate through mutual transmission between a second rotating wheel 51 and the third rotating wheel 54 on an output end through a transmission belt 52, so that a first movable plate 57 sliding on the outer side wall of the first reciprocating lead screw 55 through a first sliding part reciprocates, is limited by the first reciprocating lead screw 55 and a first limiting rod 59 in the reciprocating motion process, and drives an air injection pipe 56 to contract and stretch, a second one-way valve on an air guide pipe 510 is closed during air suction, a first one-way valve 43 on a connecting pipe 41 is opened, so that the air injection pipe 56 can only suck outside air from the position of the air guide pipe 42, the first one-way valve 43 on the connecting pipe 41 is closed during air injection, the second one-way valve on the air guide pipe 510 is opened, and the air in the air injection pipe 56 can only be injected into a rubber bag 512, the air injection pipe 56 sucks outside air and guides the air into the rubber bag 512 from the position of the air guide pipe 510, the barometer 514 on the outer side wall of the rubber bag 512 detects the air pressure inside the rubber bag 512 and transmits a signal to the sanding machine control equipment when the air pressure value reaches a set value, the control equipment transmits a signal to the communicating valve on the lower surface of the cleaning box 58, the communicating valve is opened, the air inside the rubber bag 512 is rapidly discharged under the action of the pressure difference between the inside and the outside of the rubber bag 512, the sanding belt 3 extending into the cleaning box 58 from the position of the mounting hole 515 is impacted, the debris particles embedded in the depression position of the rough surface of the sanding belt 3 are separated from the sanding belt 3 under the impact, the cleaning effect of the sanding belt 3 is achieved, the internal air pressure of the rubber bag 512 is reduced in the air release flow process and is reduced to the minimum set value, the sanding machine control equipment transmits a signal to control the communicating valve on the upper end of the rubber bag 512 to close for storing the internal air again, the debris particles impacted in the air flow impact process can be conveyed into the dust falling box 511 under the driving of the air flow, the air flow flows out of the dust filtering nets 513 on two sides of the dust falling box 511, the debris particles in the air flow are blocked and accumulated in the dust falling box 511, and part of the flying debris particles can fall into the dust falling box 511 after self sedimentation;

in the process that the air injection pipes 56 are extended and retracted under the action of the first movable plate 57, the external air can be sucked through the connecting pipes 41, one end of the vent pipe 42 is connected with the two connecting pipes 41, the two connecting pipes 41 are respectively connected with the two adjacent air injection pipes 56, the two air injection pipes 56 are opposite in extension and retraction states, when one air injection pipe is extruded, the other air injection pipe is stretched, so that the vent pipe 42 is constantly kept in the state of sucking the external air, the suction of the debris particles generated by polishing is uninterrupted, the vent pipe 42 connected with one end of the connecting pipe 41 can extend to the position where the polishing abrasive belt 3 and the glass fiber reinforced plastic circular pipe 9 rub with each other, the dust generated by polishing is driven by the air flow to be transmitted into the dust collection box 44 along the vent pipe 42, and is transmitted to the position of the connecting pipe 41 along the vent pipe 42 on the other side of the dust collection box 44 after being filtered by the filter screen on the filter screen frame 47 in the dust collection box 44, the first rotating wheel 45 on the outer side wall of the dust collection box 44 is in transmission connection with the second rotating wheel 51 on the output end of the driving motor 6 through a transmission belt 52, so that a first gear 412 coaxial with the first rotating wheel 45 rotates along with the first rotating wheel, and drives a second gear 413 mutually embedded with the first gear 412 to rotate, so that a rotating disc 410 coaxial with the second gear 413 rotates under the support of a first support seat 411, and in the rotating process of the rotating disc 410, a cleaning rod 46 can be pulled by an adjusting rod 49 to slide on a sliding groove 48 on the inner side of a filter screen frame 47, so that the cleaning rod 46 can clean a filter screen on the filter screen frame 47;

the second rotating wheel 51 on the output end of the driving motor 6 drives the rotating wheel at the position of the sanding belt 3 to rotate through the transmission belt 52, the rotating shaft of the rotating wheel is connected with the second reciprocating lead screw 74, the second reciprocating lead screw 74 is driven to rotate under the support of the third support seat 72, so that the second movable plate 75 connected to the outer side wall of the second reciprocating lead screw 74 through the second sliding part reciprocates, the second movable plate 75 is limited by the second reciprocating lead screw 74 and the second limit rod 73 during the reciprocating motion, the outer side wall of the connecting plate 715 connected to the support plate 71 through the electric push rod 713 is connected with the second limit frame 716 through the second spring 712, the motion of the second limit frame 716 is limited by the fourth limit rod 714, the second limit frame 716 is in close contact with one end of the circular glass fiber reinforced plastic tube 9, the first limit frame 76 integrally formed at one end of the second movable plate 75 is in close contact with the other end of the circular glass fiber reinforced plastic tube 9, and the first limit frame 76 and the second limit frame 716 are both placed at the middle position of one end of the glass fiber reinforced plastic circular tube 9, the rolling rollers 77 on the inner side walls of the first limit frame 76 and the second limit frame 716 can rotate along with the rotation of the glass fiber reinforced plastic circular tube 9, and the extrusion plates 79 on the inner upper surfaces of the first limit frame 76 and the second limit frame 716 limit the position of the glass fiber reinforced plastic circular tube 9 on the support roller 8 under the action of the first spring 711.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The special outer circle grinding machine for the glass fiber reinforced plastic lifting pipe comprises a bottom plate (1), a support frame (2), a grinding abrasive belt (3), a driving motor (6), a supporting roller (8) and a glass fiber reinforced plastic circular pipe (9), wherein the support frame (2) is connected to the upper surface of the bottom plate (1), the grinding abrasive belt (3) is arranged on one side of the outer side wall of the support frame (2), the driving motor (6) is connected to the position, close to the grinding abrasive belt (3), of the upper surface of the bottom plate (1), the supporting roller (8) is connected to the position, close to the front of the grinding abrasive belt (3), of the upper surface of the bottom plate (1), the glass fiber reinforced plastic circular pipe (9) is arranged on the outer side wall of the supporting roller (8), and the special outer circle grinding machine is characterized in that a cleaning mechanism (5) is arranged on the position, corresponding to the driving motor (6), of the upper surface of the bottom plate (1);

the cleaning mechanism (5) comprises a second rotating wheel (51), the outer side wall of the second rotating wheel (51) is in transmission connection with a third rotating wheel (54) through a transmission belt (52), the upper surface of the base plate (1) is connected with a second supporting seat (53) corresponding to the position of the third rotating wheel (54), the outer side wall of the second supporting seat (53) is connected with a first reciprocating lead screw (55) corresponding to the position of the third rotating wheel (54) in a rotating way, the outer side wall of the first reciprocating lead screw (55) is connected with a first movable plate (57) in a sliding way, the middle position of one side of the outer side wall of the first movable plate (57) is connected with a gas injection pipe (56), the outer side wall of the second supporting seat (53) close to the gas injection pipe (56) is connected with a first limiting rod (59), and one end, far away from the first movable plate (57), of the gas injection pipe (56) is connected with a rubber bag (512) through a gas guide pipe (510), the upper end of the rubber bag (512) is connected with a cleaning box (58), the rear surface of the cleaning box (58) is provided with a mounting hole (515) corresponding to the polishing abrasive belt (3), and the middle position of one side of the outer side wall of the rubber bag (512) is connected with a barometer (514).

2. The special outer circle grinding machine for the glass fiber reinforced plastic lift pipe according to claim 1, wherein a dust fall mechanism (4) is arranged at a position, corresponding to the gas injection pipe (56), on the upper surface of the bottom plate (1);

the dust fall mechanism (4) comprises a connecting pipe (41), a first check valve (43) is connected to the position, close to the gas injection pipe (56), of the outer side wall of the connecting pipe (41), a vent pipe (42) is connected to one end, far away from the gas injection pipe (56), of the connecting pipe (41), a dust collection box (44) is connected to the outer side wall of the vent pipe (42), a first rotating wheel (45) is connected to the position, corresponding to the driving motor (6), of the outer side wall of the dust collection box (44) in a rotating mode through a rotating shaft, a filter screen frame (47) is connected to the position, the upper surface and the lower surface of the inner portion of the filter screen frame (47) are respectively provided with a sliding groove (48), a cleaning rod (46) is connected to the inner side wall of the sliding groove (48) in a sliding mode, a regulating rod (49) is connected to the middle position of the outer side wall of the cleaning rod (46) in a rotating mode through a rotating shaft, the other side of the rear surface of the adjusting rod (49) is rotatably connected with a rotary table (410) through a rotary shaft, a first supporting seat (411) is connected to the position, corresponding to the rotary table (410), of the upper surface in the dust collection box (44), a second gear (413) is connected to the middle position of the rear surface of the rotary table (410) through a rotary shaft, and a first gear (412) is connected to the position, corresponding to the first rotary wheel (45), of the inner side wall of the dust collection box (44).

3. The special outer circle grinding machine for the glass fiber reinforced plastic lift pipe according to claim 1, wherein an adjusting mechanism (7) is arranged at a position, corresponding to the glass fiber reinforced plastic round pipe (9), on the upper surface of the bottom plate (1);

the adjusting mechanism (7) comprises a third supporting seat (72), a second reciprocating screw rod (74) is rotatably connected to the position, corresponding to the sanding belt (3), above the outer side wall of the third supporting seat (72), a second movable plate (75) is slidably connected to the outer side wall of the second reciprocating screw rod (74), a second limiting rod (73) is connected to the position, close to the lower portion of the second reciprocating screw rod (74), of the outer side wall of the third supporting seat (72), a first limiting frame (76) is integrally formed at one end, corresponding to the glass fiber reinforced plastic circular tube (9), of the second movable plate (75), rolling grooves (78) are formed in the middle positions of the inner side wall and the inner lower surface of the first limiting frame (76), rolling rollers (77) are rotatably connected to the inner side wall of the rolling grooves (78) through rotating shafts, and an extrusion plate (79) is slidably connected to the inner upper surface of the first limiting frame (76) through a third limiting rod (710), a first spring (711) is sleeved on the outer side wall of the third limiting rod (710);

the upper surface of the bottom plate (1) corresponds the one end of glass steel pipe (9) is connected with backup pad (71), backup pad (71) lateral wall corresponds the other end of glass steel pipe (9) is connected with electric putter (713), electric putter (713) are kept away from the one end of backup pad (71) is connected with connecting plate (715), one side sliding connection of backup pad (71) has fourth gag lever post (714) to keep away from connecting plate (715) lateral wall, fourth gag lever post (714) lateral wall cover is equipped with second spring (712), keep away from fourth gag lever post (714) the one end of backup pad (71) also is connected with second spacing frame (716).

4. The special cylindrical grinding machine for the glass fiber reinforced plastic lift pipe as claimed in claim 1, wherein a dust falling box (511) is connected to the front surface of the cleaning box (58), dust filtering nets (513) are connected to both sides of the outer side wall of the dust falling box (511), the dust filtering nets (513) are rotatably connected to the inner side wall of the dust falling box (511) through rotating shafts, connecting buckles are integrally formed on both sides of the outer side wall of the dust filtering nets (513), and buckle grooves are formed in both sides of the inner side wall of the dust falling box (511) at positions corresponding to the connecting buckles.

5. The special cylindrical sander for the glass fiber reinforced plastic lift pipe according to claim 1, wherein a communication valve is connected to the lower surface of the cleaning box (58) at a position corresponding to the rubber bag (512), a second one-way valve is connected to the outer side wall of the air duct (510) at a position corresponding to the rubber bag (512), a first slide hole is formed in the outer side wall of the first movable plate (57) at a position corresponding to the first reciprocating screw (55), and a first sliding piece is connected to the inner side wall of the first slide hole.

6. The special cylindrical grinding machine for the glass fiber reinforced plastic lift pipe as claimed in claim 2, wherein a plurality of uniformly distributed bristles are connected to the outer side wall of the cleaning rod (46) at a position corresponding to the screen frame (47), strip-shaped sliding blocks are connected to the upper end and the lower end of the cleaning rod (46) corresponding to the inner side of the chute (48), and the first rotating wheel (45) is in transmission connection with the output end of the driving motor (6) through a transmission belt (52).

7. The special cylindrical grinding machine for the glass fiber reinforced plastic lift pipe as claimed in claim 3, wherein a through hole is formed in the middle position of the lower surface of the extrusion plate (79), the inner side wall of the through hole is rotatably connected with a rolling roller (77) through a rotating shaft, the length of the first limiting frame (76) and the length of the second limiting frame (716) are both larger than the diameter of the glass fiber reinforced plastic circular pipe (9), a second slide hole is formed in the outer side wall of the second movable plate (75) corresponding to the position of the second limiting rod (73) and the position of the second reciprocating lead screw (74), and a second sliding part is connected to the inner side wall of the second slide hole corresponding to the position of the second reciprocating lead screw (74).

8. The external grinding machine special for the glass fiber reinforced plastic lift pipe as claimed in claim 1, wherein the use method of the external grinding machine special for the glass fiber reinforced plastic lift pipe comprises the following steps:

the method comprises the following steps: a driving motor (6) connected to the upper surface of the base plate (1) drives a first reciprocating lead screw (55) coaxial with the third rotating wheel (54) to rotate through mutual transmission between a second rotating wheel (51) and the third rotating wheel (54) on an output end through a transmission belt (52), so that a first movable plate (57) sliding on the outer side wall of the first reciprocating lead screw (55) through a first sliding part reciprocates, is limited by the first reciprocating lead screw (55) and a first limiting rod (59) in the reciprocating motion process, and drives a gas injection pipe (56) to contract and stretch, so that the gas injection pipe (56) absorbs outside air and guides the air into the rubber bag (512) from the position of a gas guide pipe (510), a barometer (514) on the outer side wall of the rubber bag (512) detects the air pressure inside the rubber bag (512), and transmits a signal to a frosting machine control device when detecting that the air pressure value reaches a set value, the control equipment transmits a signal to a communicating valve on the lower surface of the cleaning box (58) to open the communicating valve, air flow in the rubber bag (512) can be blown into the cleaning box (58) to clean the polishing abrasive belt (3) extending into the cleaning box (58) from the position of the mounting hole (515), the cleaned and fallen dust slides into the dust falling box (511) along a slide way under the impact action of the air flow, and the dust filtering net (513) filters the dust in the air flow;

step two: in the process that the gas injection pipe (56) extends and retracts under the action of the first movable plate (57), outside air can be sucked through the connecting pipe (41), the vent pipe (42) connected with one end of the connecting pipe (41) can extend to the position where the sanding belt (3) and the glass fiber reinforced plastic circular pipe (9) rub with each other, dust generated by sanding is driven by air flow to be transmitted into the dust collection box (44) along the vent pipe (42), the dust collection box (44) is filtered by a filter screen on a filter screen frame (47) and then transmitted to the position of the connecting pipe (41) along the vent pipe (42) on the other side of the dust collection box (44), the first rotating wheel (45) on the outer side wall of the dust collection box (44) is in transmission connection with the second rotating wheel (51) on the output end of the driving motor (6) through a transmission belt (52), and the first gear (412) coaxial with the first rotating wheel (45) rotates along with the transmission belt (52), the second gear (413) which is mutually embedded with the first gear (412) is driven to rotate, so that the rotary disc (410) which is coaxial with the second gear (413) rotates under the support of the first support seat (411), and the adjusting rod (49) can be used for drawing the cleaning rod (46) to slide on the sliding groove (48) on the inner side of the filter screen frame (47) in the rotating process of the rotary disc (410) so that the cleaning rod (46) can clean the filter screen on the filter screen frame (47);

step three: a second rotating wheel (51) on the output end of a driving motor (6) drives a rotating wheel at the position of the sanding belt (3) to rotate through a transmission belt (52), a rotating shaft of the rotating wheel is connected with a second reciprocating lead screw (74) to drive the second reciprocating lead screw (74) to rotate under the support of a third support seat (72), so that a second movable plate (75) connected to the outer side wall of the second reciprocating lead screw (74) through a second sliding part reciprocates, the second movable plate (75) is limited by the second reciprocating lead screw (74) and a second limiting rod (73) in the reciprocating process, a second limiting frame (716) is connected to the outer side wall of a connecting plate (715) connected with a support plate (71) through an electric push rod (713) through a second spring (712), the movement of the second limiting frame (716) is limited by a fourth limiting rod (714), and the second limiting frame (716) is in close contact with one end of a circular glass fiber reinforced plastic pipe (9), the other end in close contact with glass steel pipe (9) is put to first spacing frame (76) of second fly leaf (75) one end integrated into one piece and second spacing frame (716), and first spacing frame (76) and second spacing frame (716) all place the intermediate position department in glass steel pipe (9) one end, roll roller (77) on first spacing frame (76) and second spacing frame (716) inside wall can follow the rotation of glass steel pipe (9) and rotate, stripper plate (79) on first spacing frame (76) and second spacing frame (716) inside upper surface are injectd the position of glass steel pipe (9) on backing roll (8) under the effect of first spring (711).