CN116117702A

CN116117702A - Intelligent shot blasting machine for production of heat preservation pipes and shot blasting method thereof

Info

Publication number: CN116117702A
Application number: CN202211207596.3A
Authority: CN
Inventors: 张磊
Original assignee: Shandong Sanlei Pipe Industry Co ltd
Current assignee: Shandong Sanlei Pipe Industry Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-05-16

Abstract

The invention discloses an intelligent shot blasting machine for production of heat preservation pipes and a shot blasting method thereof, comprising a frame, supporting legs at the bottom of the frame and a shot blasting system for surface treatment of the heat preservation pipes, wherein the supporting legs are fixedly connected with the frame, -shaped shielding plates are detachably arranged at the top of the frame, baffle plates are arranged at two ends of each -shaped shielding plate, and a collecting hopper is fixedly connected at the bottom of the frame. According to the invention, the primary shot blasting treatment, the inner side face shot blasting treatment and the secondary shot blasting treatment are sequentially carried out, the multistage shot blasting process can simultaneously process a plurality of steel pipe workpieces in batches, the processing efficiency is improved, the speed of the third driving motor and the first driving motor and the rotating speed of the output shaft control whether the steel pipe workpieces rotate or not, stable conveying or rollback blanking of the workpieces is realized, the workpieces are enabled to rotate during shot blasting, the shot blasting surfaces are enabled to fully contact with the workpieces, the omnibearing uniform treatment is realized, the loading adjusting part can swing back and forth, the inner side face of the workpieces can be cleared, shot blasting sand and impurities are easy to drop, and the workpieces are kept clean.

Description

Intelligent shot blasting machine for production of heat preservation pipes and shot blasting method thereof

Technical Field

The invention relates to the technical field of metal shot blasting treatment, in particular to an intelligent shot blasting machine for production of a heat preservation pipe and a shot blasting method thereof.

Background

The heat-insulating pipe is a short name of heat-insulating pipeline, and is used for conveying liquid, gas and other mediums, and is used for heat-insulating engineering of pipelines such as petroleum, chemical industry, aerospace, military, central heating, central air conditioning, municipal administration and the like.

The heat preservation pipe after the production and processing can meet the requirement of conveying and using materials with high temperature of 130 ℃ to 600 ℃. The insulating tube mainly includes work steel pipe, heat preservation and protective housing. The heat-insulating steel pipes for heat pipes are generally used as working steel pipes, such as seamless steel pipes, straight-seam steel pipes and spiral steel pipes. The smaller caliber uses more seamless steel pipes and straight seam steel pipes. In the processing link of the small-caliber heat-insulating pipe, surface treatment is needed to be carried out on the working steel pipe in advance, pollutants such as burrs, diaphragms, rust and the like on the surface of the working steel pipe are removed, an adhesive force surface profile of a coating is increased, the purpose of strengthening a workpiece is achieved, and the working steel pipe is subjected to shot blasting treatment, so that the metal fatigue of the steel pipe fitting can be reduced, and the overall strength and the service life of the heat-insulating pipe are enhanced.

When the existing shot blasting device is used for processing small-caliber working steel pipes, only one working steel pipe is usually processed at a time, shot blasting cleaning cannot be effectively performed on the inner side walls of the working steel pipes, processing efficiency is low, in the cleaning process, shot blasting dead areas exist, and the problem that cleaning is uneven and incomplete is caused.

Therefore, the intelligent shot blasting machine for production of the heat preservation pipe and the shot blasting method thereof are invented to solve the problems.

Disclosure of Invention

The invention aims to provide an intelligent shot blasting machine for production of a heat preservation pipe and a shot blasting method thereof, which are characterized in that heat preservation steel pipe workpieces are conveyed through a first conveying part, a second conveying part and a loading adjusting part, primary shot blasting treatment, inner side face shot blasting treatment and secondary shot blasting treatment are sequentially carried out, a plurality of steel pipe workpieces in batches can be processed simultaneously under a multistage shot blasting process, the processing efficiency is improved, and whether the steel pipe workpieces rotate or not can be controlled through speed control of a third driving motor, a first driving motor and rotation speed of an output shaft, so that the workpieces stably convey and fall back to be fed, the workpieces rotate during shot blasting, the shot blasting surface is fully contacted with the workpieces, omnibearing uniform treatment is realized, the loading adjusting part can swing back and forth, and the inner side face of a cleaning workpiece can also drop shot sand and impurities under the cooperation of a shot blasting system, so that the workpieces can be kept clean, and the defects in the technology are overcome.

In order to achieve the above object, the present invention provides the following technical solutions: the intelligent shot blasting machine for producing the heat preservation pipes comprises a frame, supporting legs at the bottom of the frame and a shot blasting system for treating the surface layer of the heat preservation steel pipes, wherein the supporting legs are fixedly connected with the frame, -shaped shielding plates are detachably arranged at the top of the frame, baffle plates are arranged at two ends of each -shaped shielding plate, a collecting hopper is fixedly connected at the bottom of the frame, and an output port is arranged at the bottom of each collecting hopper;

The two ends of the inner side of the frame are respectively provided with a first transmission part and a second transmission part for conveying the heat-preservation steel pipes, a loading adjusting part for multidirectional shot blasting treatment of the heat-preservation steel pipes is arranged between the first transmission part and the second transmission part, and the first transmission part and the second transmission part are symmetrically arranged on two sides of the loading adjusting part;

the shot blasting system comprises a first material conveying pump, a second material conveying pump and a third material conveying pump, wherein the input ends of the first material conveying pump and the second material conveying pump extend into a material feeding box storing shot blasting sand, the first material conveying pump and the second material conveying pump are respectively positioned at two sides of a rack, the output ends of the first material conveying pump and the second material conveying pump are communicated with a lateral material distributing and discharging frame, the end parts of the lateral material distributing and discharging frames at two sides are respectively arranged through two side walls of -shaped mask plates, a first shot blasting machine is arranged on a pipeline opening at the end part of the lateral material distributing and discharging frame, two sides of the top of the -shaped mask plate are respectively provided with a vertical material distributing and discharging frame, the vertical material distributing and discharging frames at two sides are respectively arranged through the top wall of the -shaped mask plate, a second shot blasting machine is arranged on a pipeline opening at the end part of the vertical material distributing and is respectively positioned at the inner side of the -shaped mask plate, the first shot machine is obliquely arranged downwards, a conveying pipeline opening is communicated between the vertical material distributing and discharging frames at two sides, and the output ends of the vertical material distributing and the third shot blasting machine are communicated with the output ends of the conveying pump;

The two sides of the frame are respectively provided with a limiting part for adapting to and adjusting the heat-preserving steel pipes, the limiting parts are provided with auxiliary transmission mechanisms, the auxiliary transmission mechanisms are used for enabling the heat-preserving steel pipes to move in a transmission mode and rotate in a transmission mode, the number of the limiting parts is two, the two groups of limiting parts are respectively matched with the first transmission parts and the second transmission parts, and the inner side wall of the middle position of the -shaped mask plate is provided with a tidy part matched with the loading adjusting part;

the intelligent shot blasting machine further comprises a controller, the first transmission part, the second transmission part, the loading adjusting part, the shot blasting system, the limiting part and the electric components in the auxiliary transmission mechanism are electrically connected with the controller, the second material conveying pump and the third material conveying pump work alternately, and only one of the second material conveying pump and the third material conveying pump works at the same time.

As a preferable scheme of the invention, the first transmission part and the second transmission part comprise two first transmission belts which are distributed in parallel, two ends of each first transmission belt are respectively provided with a driving shaft rod and a driven shaft rod which are rotatably arranged with the frame, the first transmission belts are driven by the driving shaft rods and the driven shaft rods, one side end part of the frame is fixedly connected with a first driving motor, an output shaft of the first driving motor penetrates through the side wall of the frame and is fixedly connected with one of the driving shaft rods, and a first transmission belt is connected between two adjacent driven shaft rods in a transmission way and is used for synchronously conveying materials of the first transmission part and the second transmission part;

The utility model discloses a heat preservation steel pipe, including first conveying portion, second conveying portion, frame, scraper, smooth layer board, frame, first conveying portion and second conveying portion bottom are equipped with the tensioning ware that is used for first conveying belt to tighten, and tensioning ware both sides and frame demountable installation, install on the tensioning ware and scrape the board for scrape the inboard ball sand material of throwing of first conveying belt and impurity, should install smooth layer board on the tensioning ware, and smooth layer board is used for supporting heat preservation steel pipe or first conveying belt inside wall.

As a preferable scheme of the invention, a driving wheel is arranged at the joint of the driving shaft lever and the driven shaft lever with the first conveyor belt, and the driving wheel is connected with the driving shaft lever or the driven shaft lever in a sliding way and realizes limit through screws;

a sliding rod is fixedly connected to the inner side of the frame and positioned at the bottom positions of the first transmission part and the second transmission part, a positioning block is connected between the sliding rod and the driving shaft rod in a sliding manner, and limiting is realized between the positioning block and the sliding rod through a screw;

the surface of the sliding rod is provided with scale bars.

As a preferable scheme of the invention, the loading adjusting part comprises a herringbone support frame arranged in the frame and a loading frame arranged at the top of the herringbone support frame;

the top of the herringbone support frame is fixedly connected with a connecting shaft rod, and a limiting roller for limiting the inclination angle of the loading frame is arranged on the side wall of the herringbone support frame;

The utility model discloses a loading frame, including support frame, connecting axle sleeve, support frame bottom middle part an organic whole is provided with the connecting axle sleeve, and the support frame realizes rotating through the cup joint of connecting axle sleeve and connecting axostylus axostyle and connect, connecting axle sleeve tip fixedly connected with belt pulley, the outside fixedly connected with second driving motor of frame, and the transmission is connected with the second drive belt between second driving motor output shaft and the belt pulley, has seted up the notch that supplies the second drive belt to pass through in the frame, loading frame bottom both sides still are equipped with the electro-magnet fixer.

As a preferable scheme of the invention, two ends of the loading frame are respectively in butt joint with the first transmission part and the second transmission part, and gaps are reserved between two sides of the loading frame and the inner wall of the frame so that the loading frame can freely rotate.

As a preferable scheme of the invention, the trimming part comprises electric push rods arranged in the middle parts of two sides of the -shaped shielding plate, and the output ends of the electric push rods penetrate through the -shaped shielding plate and can be detachably arranged on the trimming plate;

the bottom end position of the neat plate is higher than the top height when the loading frame is horizontally placed, and the upper plane is flush with the upper surface of the first conveyor belt when the loading frame is horizontally placed.

As a preferable scheme of the invention, the limiting part comprises a limiting bolt arranged on the outer side wall of the frame, a P-shaped mounting frame is connected on the limiting bolt in a sliding way, a cross beam is fixedly connected between two adjacent P-shaped mounting frames, a cylinder for driving the cross beam is fixedly connected on the outer side wall of the frame, and a pneumatic mechanism for driving an output shaft of the cylinder to stretch out and draw back is arranged at the connecting ends of the cylinders;

An adjusting rod is inserted above the side part of the P-shaped mounting frame, a first fastening bolt for tightly supporting the adjusting rod is connected with the top end of the P-shaped mounting frame through threads, and the end parts of two adjacent adjusting rods are connected with a limiting track together;

the surface of the -shaped shielding plate is provided with a strip-shaped groove matched with the adjusting rod, the adjusting rod penetrates through the strip-shaped groove and extends into the -shaped shielding plate, and the limit rail is positioned in the -shaped shielding plate;

the utility model discloses a spacing track, including spacing track, spacing board top fixedly connected with, the spacing track outside is equipped with the limiting plate, and limiting plate bottom height position is less than the spacing track lower plane position height, spacing board top fixedly connected with adjusts the pole slip and cup joints spacing movable sleeve, adjust the pole outside and cup jointed the spring, and the spring is located between spacing movable sleeve and the shape shade inboard wall.

As a preferable scheme of the invention, the auxiliary transmission mechanism comprises a plurality of transmission rollers which are rotatably connected to the side wall of the limit track, the outer sides of the adjacent transmission rollers are in transmission connection with a second transmission belt, the inner side of the limit track is fixedly connected with a third driving motor, the output shaft of the third driving motor is in transmission connection with one transmission roller of the same group, and the two opposite transmission rollers are in synchronous transmission through a connecting rod piece;

The height of the bottom end of the second conveyor belt is lower than that of the lower plane of the limit rail.

As a preferable scheme of the invention, the inner side wall of the strip-shaped groove is provided with a rubber protection ring, and the inner side of the rubber protection ring is provided with a first blocking fiber matrix;

the two sides of the baffle piece are respectively provided with a chute for adjusting the mounting height, the two ends of the -shaped shade plate are respectively connected with second fastening bolts for limiting the position of the baffle piece in a threaded manner, and the bottom end of the baffle piece is provided with a second blocking fiber matrix;

the -shaped shielding plate is made of transparent toughened glass material, the baffle piece is made of transparent plastic material, and the first blocking fiber matrix and the second blocking fiber matrix are made of pig hair.

The shot blasting method of the intelligent shot blasting machine for producing the heat preservation pipe comprises the following specific shot blasting modes:

step one: placing a heat-preserving steel pipe to be processed above a first transmission part from one end of the device, then starting a first driving motor to enable the first transmission part and a second transmission part to synchronously move, closing a connecting circuit of a third material conveying pump, synchronously working a second shot blasting device connected in series, and performing primary treatment on the outer layer of the heat-preserving steel pipe at the first transmission part by spraying shot blasting sand;

Step two: the initial position of the loading adjusting part is in a horizontal state, the heat-insulating steel pipe subjected to preliminary shot blasting treatment is conveyed to the loading adjusting part, the loading adjusting part is filled with the heat-insulating steel pipe subjected to preliminary treatment under the extrusion of the entering action of the heat-insulating steel pipe which is continuously added, at the moment, a first driving motor is closed, an electric push rod of a tidy part is utilized to push out tidy plates, the end parts of the heat-insulating steel pipe on the loading adjusting part are aligned, then the electric push rod retracts and electrifies an electromagnet fixer, the heat-insulating steel pipe is limited at the top of the loading adjusting part, a second driving motor is started to enable an output shaft of the heat-insulating steel pipe to swing in a periodic incomplete mode, a second driving belt and a belt pulley drive to enable a loading frame to swing left and right, after the end parts of the heat-insulating steel pipe on the loading frame are lifted, a circuit of a first shot thrower on one side of the tilting is communicated, and a first material conveying pump or a second material conveying pump connected in series with the circuit extracts materials from a material supply box to perform shot blasting treatment on the inner side of the heat-insulating steel pipe;

step three: after the inner shot blasting treatment, the loading adjusting part is restored to an initial horizontal state, a connecting circuit of the second driving motor and the first shot blasting machine is disconnected, the electromagnet fixer is closed, then the first driving motor is started again, the heat-insulating steel pipe is continuously thrown into the loading device for feeding, the material is extruded and pushed onto the second conveying part from the top of the loading frame for continuous conveying, the second shot blasting machine on the second conveying part can further perform shot blasting treatment on the heat-insulating steel pipe in the process, and meanwhile, the second shot blasting machine on the first conveying part can perform preliminary treatment on the heat-insulating steel pipe just fed in until the heat-insulating steel pipe after the preliminary treatment is filled with the loading adjusting part again, the second driving motor is closed, continuous feeding is stopped, and the internal treatment process in the step two is repeated;

Step four: when the heat-insulating steel pipe on the loading adjusting part is processed on the inner side, the heat-insulating steel pipe on the first transmission part and the second transmission part can be continuously shot blasting processed, namely a third material conveying pump is communicated with a second shot blasting machine maintaining circuit, a third motor is a bidirectional servo motor, the rotation direction and the rotation speed of the output end of the third motor are controlled by a controller, besides the first transmission part or the second transmission part are matched for stably conveying materials, the heat-insulating steel pipe can be retracted or automatically rolled according to actual processing requirements, the outer wall of the heat-insulating steel pipe is uniformly shot blasting processed, and the processed heat-insulating steel pipe is received by a subsequent assembly line from the output port of the second transmission part and is transmitted to the next procedure for assembly.

In the technical scheme, the invention has the technical effects and advantages that:

1. the heat-insulating steel pipe workpieces are conveyed through the first conveying part, the second conveying part and the loading adjusting part, primary shot blasting treatment, inner side face shot blasting treatment and secondary shot blasting treatment are sequentially carried out, a plurality of steel pipe workpieces in batches can be processed simultaneously under a multistage shot blasting process, the processing efficiency is improved, whether the steel pipe workpieces rotate or not can be controlled through speed control of the third driving motor and the first driving motor and rotation speed control of the output shaft, so that the workpieces are stably conveyed and fed back, the workpieces are enabled to rotate during shot blasting, the shot blasting faces are enabled to be fully contacted with the workpieces, omnibearing uniform treatment is achieved, the loading adjusting part can swing back and forth, the inner side faces of the workpieces can be cleared under the cooperation of a shot blasting system, shot blasting sand and impurities can be enabled to fall, the workpieces can be kept clean, the shot blasting sand can be recycled, the device can work for a long time, and loss and production cost are reduced;

2. The transparent -shaped shielding plate and the baffle piece are arranged to shield the shot blasting sand, so that the shot blasting sand falls into the collecting hopper for recycling, an automatic cleaning mechanism such as a scraping plate, a blower and other structures are arranged in the device, a first blocking fiber matrix and a second blocking fiber matrix are matched, the cleanliness of a working space is ensured, the loading adjusting part is matched with a tidy part, a plurality of heat-insulation steel pipes are aligned in the transmission process, the subsequent processing is smoother, a setting program is further increased, and the shot blasting sand is combined with various electric devices, so that intelligent control and automatic efficient operation are realized;

3. the position of the first conveyor belt is adjustable by arranging the movable driving wheel, in addition, the cylinder is driven by the pneumatic mechanism to push the cross beam by the arrangement of the limiting part, so that the height position of the P-shaped mounting frame is adjusted, the sliding-in length of the adjusting rod is adjusted on the P-shaped mounting frame, and the limiting bolt is used for limiting, so that the position of the limiting track is adjusted, the applicability of the processing requirements of heat-preservation steel pipes with different calibers and different lengths is realized,

during the regulation, the bar groove and the first fiber blocking matrix on the -shaped shielding plate can not influence the movement of the adjusting rod, can also ensure the cleanliness of the working environment, and utilizes the limiting plate to be attached to the tops of the two ends of the heat-preserving steel pipe, and plays a role in buffering and limiting under the cooperation of the limiting moving sleeve and the spring, so that the workpiece can not be worn and collided.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a perspective view of a first view of the overall structure of the present invention;

FIG. 2 is a second perspective view of the overall structure of the present invention;

FIG. 3 is a schematic view of the present invention in an operating state ( -shaped shield plate is omitted);

fig. 4 is a first perspective view of the body transport block of the present invention;

fig. 5 is a second perspective view of the body transport block of the present invention;

fig. 6 is a first perspective view of the distribution structure of the first conveying part, the second conveying part and the loading adjusting part according to the present invention;

fig. 7 is a second perspective view of the distribution structure of the first conveying part, the second conveying part and the loading adjusting part according to the present invention;

FIG. 8 is a perspective view of a first perspective view of a transmission structure of a first transmission portion and a second transmission portion according to the present invention;

FIG. 9 is a second perspective view of the transmission structure of the first transmission part and the second transmission part of the present invention;

FIG. 10 is a perspective view of the load adjuster of the present invention;

fig. 11 is a first perspective view of the attachment structure of the -shaped shield plate and baffle member of the present invention;

fig. 12 is a first perspective view of the attachment structure of the -shaped shield plate and baffle member of the present invention;

fig. 13 is a connection diagram of the control system of the electrical component of the present invention.

Reference numerals illustrate.

Detailed Description

In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

The invention provides an intelligent shot blasting machine for production of a heat preservation pipe, which is shown in figures 1-13, and comprises a frame 1, supporting legs 2 at the bottom of the frame 1 and a shot blasting system for surface treatment of the heat preservation steel pipe, wherein the supporting legs 2 are fixedly connected with the frame 1, -shaped shielding plates 3 are detachably arranged at the top of the frame 1, baffle plates 4 are arranged at two ends of each -shaped shielding plate 3, a collecting hopper 5 is fixedly connected at the bottom of the frame 1, an output port is arranged at the bottom of each collecting hopper 5, the collecting hopper 5 is matched with the bottom of the frame 1, shot blasting sand and impurities can be completely recovered and recycled after being recovered, and after being used for a period of time, the collected shot blasting sand can be recovered, screened and cleaned by opening the output port, so that resource consumption is reduced, and production cost is reduced;

The two ends of the inner side of the frame 1 are respectively provided with a first transmission part 6 and a second transmission part 7 for conveying the heat-preservation steel pipes, a loading adjusting part 8 for multidirectional shot blasting treatment of the heat-preservation steel pipes is arranged between the first transmission part 6 and the second transmission part 7, and the first transmission part 6 and the second transmission part 7 are symmetrically arranged on two sides of the loading adjusting part 8;

the shot blasting system comprises a first material conveying pump 9, a second material conveying pump 10 and a third material conveying pump 11, wherein the input ends of the first material conveying pump 9 and the second material conveying pump 10 extend into a material feeding box 12 in which shot blasting sand is stored, a cover at the top of the material feeding box 12 can be opened to supplement the shot blasting sand, the first material conveying pump 9 and the second material conveying pump 10 are respectively positioned at two sides of a frame 1, the output ends of the first material conveying pump 9 and the second material conveying pump 10 are respectively communicated with a lateral material distributing and discharging frame 13, the end parts of the lateral material distributing and discharging frames 13 at two sides penetrate through two side walls of a -shaped mask plate 3, a first shot 14 is arranged on a pipeline opening at the end part of the lateral material distributing and discharging frame 13, two sides of the top of the -shaped mask plate 3 are respectively penetrated by a vertical material distributing and discharging frame 15, the vertical material distributing and discharging frames 15 at two sides penetrate through the top wall of the -shaped mask plate 3, a second shot blasting device 16 is arranged on a pipeline opening at the end part of the vertical material distributing and discharging frame 15, the first shot blasting device 14 and the second shot device are respectively positioned at the inner sides of the mask plate 3, the first blasting device and the second impeller device is arranged at the inner sides of the grid-connected with the first material distributing and discharging frame 17, the pipeline opening is continuously connected with the third material conveying pump 11, and the recycling device is continuously arranged between the two sides of the pump 11 and the conveying system is guaranteed, and the recycling device is capable of continuously arranged, and the recycling the conveying and the conveying pipeline 11 is connected with the conveying pipeline 11;

The lateral material distributing bent 13 and the vertical material distributing bent 15 in the scheme are provided with a plurality of pipeline openings, the pipeline openings are detachably arranged with the first shot blasting device 14 or the second shot blasting device 16, the plurality of first shot blasting devices 14 and the plurality of second shot blasting devices 16 are uniformly distributed in the -shaped mask plate 3, and the cleaning surfaces are covered as much as possible, so that shot blasting is more uniform and efficient;

in the scheme, the first shot blasting machine 14 and the second shot blasting machine 16 are made of purchased mature products, and a conventional communication mode is adopted during installation, so that shot blasting sand can be uniformly sprayed out by the first shot blasting machine 14 and the second shot blasting machine 16 in a high-speed state, and a workpiece is processed;

the two sides of the frame 1 are provided with limiting parts 18 for adapting and adjusting the heat-preserving steel pipes, the limiting parts 18 are provided with auxiliary transmission mechanisms 19, the auxiliary transmission mechanisms 19 are used for enabling the heat-preserving steel pipes to move in a transmission mode and rotate, the number of the limiting parts 18 is two, the two groups of limiting parts 18 are respectively matched with the first transmission part 6 and the second transmission part 7, the inner side wall of the middle part of the -shaped mask plate 3 is provided with a tidy part 20 matched with the loading adjusting part 8, so that a plurality of heat-preserving steel pipes are aligned in the transmission process, and subsequent processing is smoother;

The intelligent shot blasting machine further comprises a controller 21, wherein the electric components in the first transmission part 6, the second transmission part 7, the loading adjusting part 8, the shot blasting system, the limiting part 18 and the auxiliary transmission mechanism 19 are electrically connected with the controller 21, the second material conveying pump 10 and the third material conveying pump 11 work alternately, and only one of the second material conveying pump 10 and the third material conveying pump 11 works at the same time;

the controller 21 can be used for realizing automatic processing by adding a set program and combining with an electric device in the device, such as adding a counter or a camera in the -shaped shielding plate 3, observing and collecting the number of the heat-insulating steel pipes on the loading adjusting part 8, determining the batch number of the heat-insulating steel pipes with a certain specification (namely, the number of the heat-insulating steel pipes which can be effectively processed and carried by the loading adjusting part 8) through direct observation and technical and camera shooting information, manually inputting the number through the controller as a standard of single change operation, such as X for the effective number of the heat-insulating steel pipes with a certain specification placed on the loading adjusting part 8, and then X for the number of the heat-insulating steel pipes newly added each time, so that the heat-insulating steel pipes on the loading adjusting part 8 can be completely replaced after being simultaneously processed, thereby improving the shot blasting processing efficiency and realizing intelligent control and automatic efficient operation.

Further, in the above technical solution, the first transmission portion 6 and the second transmission portion 7 each include two parallel first conveyor belts 671, two ends of each first conveyor belt 671 are respectively provided with a driving shaft lever 672 and a driven shaft lever 673 which are rotatably disposed with the frame 1, the first conveyor belts 671 are driven by the driving shaft lever 672 and the driven shaft lever 673, one side end of the frame 1 is fixedly connected with a first driving motor 674, an output shaft of the first driving motor 674 penetrates through a side wall of the frame 1 and is fixedly connected with one of the driving shaft levers 672, and a first conveyor belt 675 is connected between two adjacent driven shaft levers 673 in a driving manner, so that the first transmission portion 6 and the second transmission portion 7 can synchronously convey materials;

the bottom of the first transmission part 6 and the bottom of the second transmission part 7 are provided with tensioners 676 for tightening the first conveyor belt 671, two sides of each tensioner 676 are detachably arranged on the frame 1, scraping plates are arranged on the tensioners 676 and used for scraping shot blasting sand materials and impurities on the inner side of the first conveyor belt 671, smooth supporting plates 677 are arranged on the tensioners 676 and used for supporting heat-insulating steel pipes or the inner side walls of the first conveyor belt 671, the bearing strength of the transmission parts of the device is improved, and the stability of workpiece transmission is improved.

Further, in the above technical solution, a driving shaft lever 672 and a driven shaft lever 673 are provided with a driving wheel 678 at the connection part with the first conveyor belt 671, the driving wheel 678 is slidably connected on the driving shaft lever 672 or the driven shaft lever 673 and is limited by a screw, the driving wheel 678 can effectively drive the first conveyor belt 671, and the position of the driving wheel 678 can be changed after the driving wheel 678 is moved, so that the heat insulation steel pipes with different lengths are suitable for use;

a sliding rod 679 is fixedly connected to the inner side of the frame 1 and positioned at the bottom positions of the first transmission part 6 and the second transmission part 7, a positioning block 6710 is connected between the sliding rod 679 and the driving shaft lever 672 in a sliding way, and the positioning block 6710 and the sliding rod 679 are limited by screws;

the surface of the slide rod 679 is provided with scale bars, and when the positioning block 6710 is positioned and the position is adjusted, the scale bars are observed to accurately adjust the positioning block 6710 in a symmetrical shape.

In the above technical solution, the loading adjusting part 8 includes a herringbone support 801 mounted in the frame 1 and a loading frame 802 disposed at the top of the herringbone support 801, a large through groove for dropping shot blasting sand is formed on the surface of the loading frame 802, and in order to clean the interior of the device after shot blasting, a blower can be mounted at the top of the inner side of the -shaped mask plate 3, so that blanking cleaning is facilitated;

The top of the herringbone support frame 801 is fixedly connected with a connecting shaft rod 803, a limiting roller 804 for limiting the inclination angle of the loading frame 802 is arranged on the side wall of the herringbone support frame 801, and in order to be suitable for more conditions, the position of the limiting roller 804 in the scheme can be selectively adjusted, so that the inclination angle of the loading frame 802 can be conveniently controlled, and the maximum inclination angle of the loading frame 802 is limited;

a connecting shaft sleeve 805 is integrally arranged in the middle of the bottom end of the loading frame 802, the loading frame 802 and the herringbone support frame 801 are connected in a rotating manner through sleeving the connecting shaft sleeve 805 and the connecting shaft rod 803, a belt pulley 806 is fixedly connected to the end part of the connecting shaft sleeve 805, a second driving motor 807 is fixedly connected to the outside of the frame 1, a second driving belt 808 is connected between an output shaft of the second driving motor 807 and the belt pulley 806 in a transmission manner, a notch for the second driving belt 808 to pass through is formed in the frame 1, and electromagnet retainers 809 are further arranged on two sides of the bottom of the loading frame 802;

in order to improve the stability of the heat-insulating steel pipe at the top of the loading frame 802 and avoid the hidden danger of power failure when the device works, thereby causing the problem that the heat-insulating steel pipe slides down to strike the frame 1 or the -shaped shielding plate 3, blocking plates can be additionally arranged at two sides of the top of the loading frame 802, and the limiting and supporting functions are achieved.

In the above technical solution, two ends of the loading frame 802 are respectively in butt joint with the first transmission part 6 and the second transmission part 7, and a gap is reserved between two sides of the loading frame 802 and the inner wall of the frame 1, so that the loading frame 802 can rotate freely.

In the above technical solution, the trimming part 20 includes electric push rods 201 disposed in the middle of two sides of the -shaped shielding plate 3, and the output ends of the electric push rods 201 penetrate through the -shaped shielding plate 3 and are detachably mounted with trimming plate 202;

the bottom end of the trimming plate 202 is positioned higher than the top height of the carrier 802 when the carrier 802 is laid flat, and the upper plane of the carrier 802 is flush with the upper surface of the first conveyor 671 when the carrier is laid flat.

In the above technical solution, the limiting portion 18 includes a limiting bolt 181 disposed on an outer side wall of the frame 1, a P-shaped mounting frame 182 is slidably connected on the limiting bolt 181, a beam 183 is fixedly connected between two adjacent P-shaped mounting frames 182, an air cylinder 184 for driving the beam 183 is fixedly connected on the outer side wall of the frame 1, and a pneumatic mechanism for driving an output shaft of the air cylinder 184 to stretch is commonly disposed at a connection end of the air cylinders 184;

the cross beam 183 and the two P-shaped mounting frames 182 at the end parts of the cross beam form an integral structure, the pneumatic mechanism is controlled by the controller 21 to store energy and transmit pressure to the air cylinders 184, so that the output ends of the air cylinders 184 synchronously stretch out and draw back, the height position of the P-shaped mounting frames 182 is adjusted, the limit bolts 181 are limited by through holes on the P-shaped mounting frames 182, and the processing and use of heat preservation steel pipes with different calibers can be satisfied;

An adjusting rod 185 is inserted above the side part of the P-shaped mounting frame 182, a first fastening bolt 186 for abutting against the adjusting rod 185 is connected with the top end of the P-shaped mounting frame 182 in a threaded manner, and a limiting track 187 is connected with the end parts of two adjacent adjusting rods 185 together;

the adjusting rods 185 can move in holes formed in the side wall above the P-shaped mounting frame 182, after the adjusting rods 185 on the two sides are symmetrically adjusted, the length of the heat-insulating steel pipe can be adapted, and after the adjusting rods are adjusted to a proper position, the heat-insulating steel pipe can be stably operated by being screwed up through the first fastening bolts 186;

the surface of the -shaped shielding plate 3 is provided with a strip-shaped groove 301 matched with the adjusting rod 185, the adjusting rod 185 passes through the strip-shaped groove 301 and extends to the inside of the -shaped shielding plate 3, and the limit rail 187 is positioned in the -shaped shielding plate 3; the outer side of the limiting track 187 is provided with a limiting plate 188, the height position of the bottom end of the limiting plate 188 is lower than the height of the lower plane position of the limiting track 187, the top of the limiting plate 188 is fixedly connected with a limiting moving sleeve 189 which is in sliding sleeve joint with the adjusting rod 185, the outer side of the adjusting rod 185 is sleeved with a spring 1810, and the spring 1810 is positioned between the limiting moving sleeve 189 and the inner wall of the -shaped shielding plate 3;

the limiting rail 187 is used as a limiting frame in the process of processing the heat-insulating steel pipe, the limiting plate 188 is arranged on the limiting frame, the limiting plate 188 can be attached to the tops of the two ends of the heat-insulating steel pipe, and the limiting moving sleeve 189 and the spring 1810 are matched to achieve the buffering and limiting effects, so that the workpiece cannot be worn and collided.

In the above technical solution, the auxiliary transmission mechanism 19 includes a plurality of driving rollers 191 rotatably connected to the side wall of the limit track 187, and the outer sides of the adjacent driving rollers 191 are in transmission connection with a second conveyor belt 192, the inner side of the limit track 187 is fixedly connected with a third driving motor 193, the output shaft of the third driving motor 193 is in transmission connection with one of the driving rollers 191 in the same group, and the two opposite driving rollers 191 are synchronously transmitted through a link member 194;

when the auxiliary transmission mechanism 19 works, the third driving motor 193 is started, the output shaft of the third driving motor drives one of the driving rollers 191, under the cooperation of the plurality of driving rollers 191 and the second conveying belt 192, the second conveying belt 192 can drive the heat-preserving steel pipes, and the second conveying belts 192 on two sides can be synchronously driven through the transmission of the connecting rod piece 194, and when the auxiliary transmission mechanism is specifically used, the steering and the rotating speed of the output shaft of the third driving motor 193 can be regulated so as to control the transmission speed of the second conveying belt 192;

when the output shaft of the third driving motor 193 and the output shaft of the first driving motor 674 are opposite in direction, the bottom of the second conveying belt 192 and the top of the first conveying belt 671 are consistent in moving direction, and when the moving speeds of the bottom and the top are consistent, the heat-preserving steel pipe can be moved at a constant speed and can be advanced in a fixed posture;

When the moving speeds are consistent, or the output shaft of the third driving motor 193 and the output shaft of the first driving motor 674 turn to the same direction, and the moving speed of the first conveyor belt 671 is higher than that of the second conveyor belt 192, the heat-insulating steel pipe rotates in the advancing process, at the moment, the contact surface is more sufficient in the shot blasting process, and the treatment effect can be improved;

when the heat preservation steel pipe on the first transmission part 6 is taken out, the first driving motor 674 can be stopped, the output shaft of the third driving motor 193 is reversed, materials are taken out, and when the load adjusting part 8 is inconvenient to take out, the materials can be inserted into the end part of the first transmission part 6 through a push rod to be pushed in;

the height of the bottom end of the second conveying belt 192 is lower than the height of the lower plane of the limit rail 187, so that the second conveying belt 192 can be contacted with the heat-preserving steel pipe, and the limit rail 187 can not influence the effective transmission of the first transmission part 6 and the second transmission part 7.

As can be seen from fig. 11 to 12, in the above technical solution, the inner side wall of the bar-shaped groove 301 is provided with a rubber protection ring, the inner side of the rubber protection ring is provided with a first blocking fiber matrix 302, so that the abrasion of the adjusting rod 185 during adjustment is reduced, and the bar-shaped groove 301 and the first blocking fiber matrix 302 cooperate to prevent shot blasting sand or dust from drifting out, ensure the cleanliness of the working environment, and do not affect the adjustment of the adjusting rod 185;

In order to adapt to the processing of heat preservation steel pipes with different diameters, sliding grooves 401 for installing height adjustment are formed in two sides of a baffle piece 4, second fastening bolts 402 for limiting the position of the baffle piece 4 are connected to two ends of a -shaped shielding plate 3 in a threaded mode, when the height adjustment is needed, the second fastening bolts 402 are unscrewed, the height position of the baffle piece 4 is adjusted, then the baffle piece 4 is screwed down, a second blocking fiber matrix 403 is arranged at the bottom end of the baffle piece 4, feeding and discharging can be carried out from the bottom of the baffle piece 4, dust can be prevented from drifting out by the second blocking fiber matrix 403, and attachments on the outer side of the steel pipe can be swept;

in order to facilitate the direct viewing of the shot blasting conditions inside the device, the -shaped shielding plate 3 is made of transparent toughened glass material, the shielding plate 4 is made of transparent plastic material, and the first and second

blocking fiber matrices

302 and 403 are made of pig hair, which is a preferred embodiment, but not limited to this material.

step one: placing a heat-preserving steel pipe to be processed above the first transmission part 6 from one end of the device, then starting the first driving motor 674 to enable the first transmission part 6 and the second transmission part 7 to synchronously move, closing a connecting circuit of the third material conveying pump 11, synchronously working a second shot blasting machine 16 connected in series, and performing primary treatment on the outer layer of the heat-preserving steel pipe at the first transmission part 6 by spraying shot blasting sand;

Step two: the initial position of the loading adjusting part 8 is in a horizontal state, the heat-insulating steel pipe subjected to preliminary shot blasting treatment is conveyed to the loading adjusting part 8, under the extrusion of the entering action of the continuously added heat-insulating steel pipe, the loading adjusting part 8 is filled with the heat-insulating steel pipe subjected to preliminary treatment, at the moment, the first driving motor 674 is closed, the electric push rod 201 of the trimming part 20 is utilized to push out the trimming plate 202, the end parts of the heat-insulating steel pipes on the loading adjusting part 8 are aligned, then the electric push rod 201 is retracted and electrifies the electromagnet fixer 809, the heat-insulating steel pipe is limited at the top of the loading adjusting part 8, the second driving motor 807 is started to enable the output shaft of the heat-insulating steel pipe to swing in a periodical incomplete mode, the loading frame 802 swings left and right under the driving of the second driving belt 808 and the belt pulley 806, according to the swing amplitude of the loading frame 802, after the end parts of the heat-insulating steel pipe on the loading frame 802 are lifted, the circuit of the first shot-blasting machine 14 positioned at one side is communicated, and the first or second material conveying pump 9 or 10 connected in series with the circuit extracts materials from the material feeding box 12 to perform shot blasting treatment on the inner side of the heat-insulating steel pipe;

step three: after the inner shot blasting treatment, the loading adjusting part 8 is restored to an initial horizontal state, the connection circuits of the second driving motor 807 and the first shot blasting machine 14 are disconnected, the electromagnet fixing device 809 is closed, then the first driving motor 674 is started again, the heat-preserving steel pipe is continuously fed, the material is extruded and pushed to the second conveying part 7 from the top of the loading frame 802 to be continuously conveyed, in the process, the second shot blasting machine 16 on the second conveying part 7 can further perform shot blasting treatment on the heat-preserving steel pipe, meanwhile, the second shot blasting machine 16 on the first conveying part 6 can perform primary treatment on the heat-preserving steel pipe which is just fed in, until the heat-preserving steel pipe which is subjected to primary treatment is filled with the loading adjusting part 8 again, the second driving motor 807 is closed, continuous feeding is stopped, and the internal treatment process in the second step is repeated;

Step four: when the heat-insulating steel pipe on the loading adjusting part 8 is processed on the inner side, the heat-insulating steel pipe on the first transmission part 6 and the second transmission part 7 can be continuously shot blasting processed, namely, the third material conveying pump 11 and the second shot blasting machine 16 are kept in circuit communication, the third motor is a bidirectional servo motor, the rotation direction and the rotation speed of the output end of the third motor are controlled through the controller 21, besides the heat-insulating steel pipe is enabled to retract or automatically roll according to actual processing requirements in addition to the stable material conveying of the first transmission part 6 or the second transmission part 7, the outer wall of the heat-insulating steel pipe is uniformly shot blasting processed, and the processed heat-insulating steel pipe is received by a subsequent assembly line from the output end of the second transmission part 7 and is transmitted to the next procedure for assembly.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.

Claims

1. The utility model provides an intelligent shot-blasting machine is used in insulating tube production, includes supporting leg (2) of frame (1) and frame (1) bottom and throws ball system to insulating steel pipe top layer treatment, and supporting leg (2) and frame (1) fixed connection, its characterized in that: -shaped shielding plates (3) are detachably mounted at the top of the frame (1), baffle plates (4) are arranged at two ends of each -shaped shielding plate (3), a collecting hopper (5) is fixedly connected to the bottom of the frame (1), and an output port is arranged at the bottom end of each collecting hopper (5); a first transmission part (6) and a second transmission part (7) for conveying the heat-insulating steel pipes are respectively arranged at two ends of the inner side of the frame (1), a loading adjusting part (8) for multidirectional shot blasting treatment of the heat-insulating steel pipes is arranged between the first transmission part (6) and the second transmission part (7), and the first transmission part (6) and the second transmission part (7) are symmetrically arranged at two sides of the loading adjusting part (8); the shot blasting system comprises a first material conveying pump (9), a second material conveying pump (10) and a third material conveying pump (11), wherein the input ends of the first material conveying pump (9) and the second material conveying pump (10) are respectively extended into a material feeding box (12) for storing shot blasting sand, the first material conveying pump (9) and the second material conveying pump (10) are respectively positioned at two sides of a frame (1), the output ends of the first material conveying pump (9) and the second material conveying pump (10) are respectively communicated with lateral material distributing bent frames (13), the end parts of the lateral material distributing bent frames (13) at two sides are respectively penetrated through two side walls of a -shaped mask plate (3), a first shot blasting machine (14) is arranged on a pipeline mouth at the end part of the lateral material distributing bent frames (13), the two sides of the top of the -shaped shade plate (3) are penetrated with vertical material separating bent frames (15), the vertical material separating bent frames (15) on the two sides are penetrated through the top wall of the -shaped shade plate (3), a second shot blasting device (16) is arranged on a pipeline opening at the end part of the vertical material separating bent frames (15), the first shot blasting device (14) and the second shot blasting device (16) are positioned at the inner side of the -shaped shade plate (3), the first shot blasting device (14) is obliquely arranged downwards, a grid-connected conveying pipe (17) is communicated between the vertical material separating bent frames (15) on the two sides, and the output end of a third material conveying pump (11) is communicated with the grid-connected conveying pipe (17), the input end of the third material conveying pump (11) is communicated with the output port; the two sides of the frame (1) are respectively provided with a limiting part (18) for adapting and adjusting the heat-preserving steel pipe, the limiting parts (18) are provided with auxiliary transmission mechanisms (19), the auxiliary transmission mechanisms (19) are used for enabling the heat-preserving steel pipe to move in a transmission mode and rotate in a transmission mode, the number of the limiting parts (18) is two, the two limiting parts (18) are respectively matched with the first transmission part (6) and the second transmission part (7), and the inner side wall of the middle position of the -shaped mask plate (3) is provided with a tidy part (20) matched with the loading adjusting part (8); the intelligent shot blasting machine further comprises a controller (21), wherein the first transmission part (6), the second transmission part (7), the loading adjusting part (8), the shot blasting system, the limiting part (18) and the electric components in the auxiliary transmission mechanism (19) are electrically connected with the controller (21), the second material conveying pump (10) and the third material conveying pump (11) work alternately, and only one of the second material conveying pump (10) and the third material conveying pump (11) works at the same time.

2. The intelligent shot blasting machine for production of heat preservation pipes according to claim 1, wherein: the first conveying part (6) and the second conveying part (7) comprise two first conveying belts (671) which are distributed in parallel, two ends of each first conveying belt (671) are respectively provided with a driving shaft lever (672) and a driven shaft lever (673) which are rotatably arranged with the frame (1), the first conveying belts (671) are driven by the driving shaft levers (672) and the driven shaft levers (673), one side end part of the frame (1) is fixedly connected with a first driving motor (674), an output shaft of the first driving motor (674) penetrates through the side wall of the frame (1) and is fixedly connected with one of the driving shaft levers (672), and a first driving belt (675) is connected between two adjacent driven shaft levers (673) in a transmission way and is used for enabling the first conveying part (6) and the second conveying part (7) to synchronously convey materials; the utility model discloses a heat preservation steel pipe, including frame (1), first conveying portion (671), second conveying portion (7), tensioning ware (676) that are used for first conveyer belt (671) to tighten are equipped with to first conveying portion (6) and second conveying portion (7) bottom, and tensioning ware (676) both sides and frame (1) demountable installation, install on tensioning ware (676) and scrape the board for scrape the inboard ball sand material of throwing of first conveyer belt (671) and impurity, should install smooth layer board (677) on tensioning ware (676), and smooth layer board (677) are used for supporting heat preservation steel pipe or first conveyer belt (671) inside wall.

3. The intelligent shot blasting machine for production of heat preservation pipes according to claim 2, wherein: a driving wheel (678) is arranged at the joint of the driving shaft lever (672) and the driven shaft lever (673) and the first conveyor belt (671), and the driving wheel (678) is connected on the driving shaft lever (672) or the driven shaft lever (673) in a sliding way and realizes limit through screws; a sliding rod (679) is fixedly connected to the inner side of the frame (1) and positioned at the bottom positions of the first transmission part (6) and the second transmission part (7), a positioning block (6710) is connected between the sliding rod (679) and the driving shaft lever (672) in a sliding manner, and limiting is realized between the positioning block (6710) and the sliding rod (679) through screws; the surface of the sliding rod (679) is provided with a scale bar.

4. The intelligent shot blasting machine for production of heat preservation pipes according to claim 1, wherein: the loading adjusting part (8) comprises a herringbone support frame (801) arranged in the frame (1) and a loading frame (802) arranged at the top of the herringbone support frame (801); the top of the herringbone support frame (801) is fixedly connected with a connecting shaft rod (803), and a limiting roller (804) for limiting the inclination angle of the loading frame (802) is arranged on the side wall of the herringbone support frame (801); the utility model discloses a loading frame, including loading frame (802), connecting axle sleeve (805) is provided with in the middle part of loading frame (802) bottom an organic whole, and loading frame (802) and chevron shape support frame (801) realize rotating through the cup joint of connecting axle sleeve (805) and connecting axostylus axostyle (803) and connect, connecting axle sleeve (805) end fixedly connected with belt pulley (806), frame (1) outside fixedly connected with second driving motor (807), and the transmission is connected with second drive belt (808) between second driving motor (807) output shaft and belt pulley (806), offer the notch that supplies second drive belt (808) to pass through on frame (1), loading frame (802) bottom both sides still are equipped with electro-magnet fixer (809).

5. The intelligent shot blasting machine for production of heat preservation pipes as claimed in claim 4, wherein: two ends of the loading frame (802) are respectively in butt joint with the first transmission part (6) and the second transmission part (7), and gaps are reserved between two sides of the loading frame (802) and the inner wall of the frame (1) so that the loading frame (802) can freely rotate.

6. The intelligent shot blasting machine for production of heat preservation pipes as claimed in claim 4, wherein: the trimming part (20) comprises electric push rods (201) arranged in the middle of two sides of the -shaped shielding plate (3), and the output ends of the electric push rods (201) penetrate through the -shaped shielding plate (3) and can be detachably mounted with trimming plate pieces (202); the bottom end position of the tidy plate (202) is higher than the top height when the loading frame (802) is horizontally arranged, and the upper plane of the loading frame (802) is flush with the upper surface of the first conveyor belt (671).

7. The intelligent shot blasting machine for production of heat preservation pipes according to claim 1, wherein: the limiting part (18) comprises limiting bolts (181) arranged on the outer side wall of the frame (1), P-shaped mounting frames (182) are connected to the limiting bolts (181) in a sliding mode, a cross beam (183) is fixedly connected between every two adjacent P-shaped mounting frames (182), an air cylinder (184) used for driving the cross beam (183) is fixedly connected to the outer side wall of the frame (1), and a pneumatic mechanism used for driving an output shaft of the air cylinder (184) to stretch out and draw back is arranged at the connecting ends of the air cylinders (184) together; an adjusting rod (185) is inserted above the side part of the P-shaped mounting frame (182), a first fastening bolt (186) for abutting against the adjusting rod (185) is connected with the top end of the P-shaped mounting frame (182) in a threaded manner, and limit rails (187) are connected with the end parts of two adjacent adjusting rods (185) together; the surface of the -shaped shielding plate (3) is provided with a strip-shaped groove (301) matched with the adjusting rod (185), the adjusting rod (185) penetrates through the strip-shaped groove (301) and extends to the inside of the -shaped shielding plate (3), and the limit rail (187) is positioned in the -shaped shielding plate (3); limiting plate (188) are arranged on the outer side of limiting track (187), the height of the bottom end of limiting plate (188) is lower than the height of the lower plane position of limiting track (187), limiting moving sleeve (189) which is in sliding sleeve connection with adjusting rod (185) is fixedly connected to the top of limiting plate (188), spring (1810) is sleeved on the outer side of adjusting rod (185), and spring (1810) is located between limiting moving sleeve (189) and the inner wall of -shaped shielding plate (3).

8. The intelligent shot blasting machine for production of heat preservation pipes according to claim 7, wherein: the auxiliary transmission mechanism (19) comprises a plurality of transmission rollers (191) which are rotatably connected to the side wall of the limit track (187), the outer sides of the adjacent transmission rollers (191) are in transmission connection with a second transmission belt (192), the inner side of the limit track (187) is fixedly connected with a third driving motor (193), the output shaft of the third driving motor (193) is in transmission connection with one transmission roller (191) of the same group, and the two opposite transmission rollers (191) are in synchronous transmission through a connecting rod piece (194); the bottom end height position of the second conveyor belt (192) is lower than the lower plane position height of the limit rail (187).

9. The intelligent shot blasting machine for production of heat preservation pipes according to claim 7, wherein: the inner side wall of the strip-shaped groove (301) is provided with a rubber protection ring, and the inner side of the rubber protection ring is provided with a first blocking fiber matrix (302); the two sides of the baffle piece (4) are respectively provided with a chute (401) for mounting height adjustment, the two ends of the -shaped shade plate (3) are respectively connected with a second fastening bolt (402) for limiting the position of the baffle piece (4) in a threaded manner, and the bottom end of the baffle piece (4) is provided with a second blocking fiber matrix (403); the -shaped shielding plate (3) is made of transparent toughened glass material, the baffle piece (4) is made of transparent plastic material, and the first blocking fiber matrix (302) and the second blocking fiber matrix (403) are made of pig hair.

10. A blasting method of an intelligent shot blasting machine for production of heat preservation pipes, comprising the intelligent shot blasting machine according to any one of claims 1-9, and characterized in that: the specific shot blasting mode is as follows: step one: placing a heat-insulating steel pipe to be processed above a first transmission part (6) from one end of the device, then starting a first driving motor (674) to enable the first transmission part (6) and a second transmission part (7) to synchronously move, and performing primary treatment on the outer layer of the heat-insulating steel pipe at the first transmission part (6) by spraying shot blasting sand after a connecting circuit of a third material conveying pump (11) is closed and a second shot blasting device (16) connected in series synchronously works; step two: the initial position of the loading adjusting part (8) is in a horizontal state, the initially shot-blasted heat-insulating steel pipe is conveyed to the loading adjusting part (8), the loading adjusting part (8) is filled with the initially-processed heat-insulating steel pipe under the extrusion of the entering action of the continuously-added heat-insulating steel pipe, at the moment, a first driving motor (674) is closed, an electric push rod (201) of a trimming part (20) is utilized to push out the trimming plate (202), the end parts of the heat-insulating steel pipe on the loading adjusting part (8) are aligned, then the electric push rod (201) retracts and electrifies an electromagnet fixer (809), the heat-insulating steel pipe is limited at the top of the loading adjusting part (8), then a second driving motor (807) is started to enable an output shaft of the heat-insulating steel pipe to swing in a periodical incomplete shape, a second driving belt (808) and a belt pulley (806) are driven to enable a loading frame (802) to swing left and right, according to the swing amplitude of the loading frame (802), after the end parts of the heat-insulating steel pipe on the loading frame (802) are lifted, the electric circuit of the first shot-blaster (14) positioned at one side is communicated, and the first shot-blasted pump (9) or the second shot pump (10) of the electric circuit is connected in series to blast a material feeding pump (12); step three: after the inner shot blasting treatment, the loading adjusting part (8) is restored to an initial horizontal state, the connection circuit of the second driving motor (807) and the first shot blasting machine (14) is disconnected, the electromagnet fixer (809) is closed, then the first driving motor (674) is started again, the heat-preserving steel pipe is continuously fed, the material is extruded and pushed onto the second transmission part (7) from the top of the loading frame (802) to be continuously conveyed, in the process, the second shot blasting machine (16) on the second transmission part (7) can further perform shot blasting treatment on the heat-preserving steel pipe, meanwhile, the second shot blasting machine (16) on the first transmission part (6) can perform preliminary treatment on the heat-preserving steel pipe which is just fed in until the heat-preserving steel pipe after the preliminary treatment is filled with the loading adjusting part (8) again, the second driving motor (807) is closed, continuous feeding is stopped, and the internal treatment process in the second step is repeated; step four: when the heat-insulating steel pipe on the loading adjusting part (8) is processed on the inner side, the heat-insulating steel pipe on the first transmission part (6) and the second transmission part (7) can be continuously subjected to shot blasting, namely, a third material conveying pump (11) and a second shot blasting machine (16) are kept in circuit communication, the third motor is a bidirectional servo motor, the rotation direction and the rotation speed of the output end of the third motor are controlled through a controller (21), besides the first transmission part (6) or the second transmission part (7) are matched for stably conveying materials, the heat-insulating steel pipe can be retracted or subjected to autorotation rolling according to actual processing requirements, the outer wall of the heat-insulating steel pipe is uniformly subjected to shot blasting, and the processed heat-insulating steel pipe is received from the output end of the second transmission part (7) and is conveyed to the next procedure for assembly.