CN108748949B - Production device of pipe body and production method of reinforced pipe body based on production device - Google Patents

Abstract

The invention discloses a production device of a pipe body, which sequentially comprises a mixing device, an extruder, a cooling device and a cutting machine from front to back according to a process flow, wherein the back of the cutting machine also comprises a pipe body surface detection device; the cooling device comprises a cooling heat exchange pipeline and a water cooling tank body assembly. The invention also discloses a method for producing the reinforced pipe body by using the production device of the pipe body. The invention has the advantages of high strength, good cutting uniformity and capability of monitoring defective products on line.

Description

Production device of pipe body and production method of reinforced pipe body based on production device

Technical Field

The invention relates to the technical field of pipe bodies, in particular to a production device of a pipe body and a production method of a reinforced pipe body based on the production device.

Background

The plastic pipe body in the prior art generally adopts the following process, and comprises a mixing device, an extruder, a cooling device and a cutting machine in sequence. The mixing device mixes all plastic raw materials and auxiliary materials, the extruder is used for melting and extruding the mixed materials, the mixed materials are shaped, cooled through the cooling device and then cut after being drawn through the tractor.

And the plastic pipe is hardly adopted in large-scale drainage engineering, and the strength of the plastic pipe is not enough and the external pressure resistance is not strong. Patent application 201620004009.4 provides a modified PP plastics tubular product of stand wear and tear high strength, including the inner tube, the surface parcel one deck glass fiber layer of inner tube, and the glass fiber in situ is equipped with the strengthening rib, the outside cover on glass fiber layer has the reinforced pipe, and is equipped with the lightening hole on the reinforced pipe, the surface of reinforced pipe is equipped with the outer tube, and is equipped with wear-resisting strip on the outer tube, but exists because the strengthening rib has increased the construction of being not convenient for of tubular product thickness, and increases the effect and just exist in the regional minizone in strengthening rib place, is not the intensity of comprehensive promotion tubular product.

The cooling device in the prior art comprises two modes of water cooling and air cooling (wind). Wherein, the air cooling receives external factor interference great, has the not enough of heat transfer inequality, and the water cooling has the body temperature shock and leads to stress concentration's phenomenon. The cutting machine in the prior art mostly adopts the push-down type cutting, namely, the pipe body formed in the extruder is cut off from top to bottom by a cutting knife in the conveying process, and the cutting is finished. This cutting mode can lead to the terminal surface of body to be the slope form, needs to carry out secondary cutting or mills. In addition, a certain proportion of defective products can be generated due to the influence of various uncontrollable factors such as motor vibration, mechanical transmission friction loss and the like in the mechanical production process, and a detection device special for detecting the quality of finished products is lacked in the production device of the tube body in the prior art.

The traditional composite pipe comprises two modes of coating a thermal insulation pipe or co-extruding the thermal insulation pipe. The patent application 201510792805.9 discloses a coating for thermal insulation pipe, which is applied on the surface of a pipe body to achieve the purpose of thermal insulation. The preparation of the thermal insulation pipe by means of coating has several problems: firstly, after the coating is cured, the thickness formed on the surface of the pipe body is usually thinner, and the heat insulation effect is limited, so that the application range is limited, and the coating cannot be applied to a limit working section; secondly, the interface between the coating and the formed tube body has limited effect, and the coating is difficult to generate the effect of improving the combination effect, such as cross-linking, and the like, so that the coating is easy to fall off from the surface of the tube body, and the stability is poor and the service life is short.

Co-extrusion heat preservation pipe like the polyurethane multi-layer co-extrusion plastic heat preservation pipe disclosed in patent application 201210024004.4 and the production method thereof, and the delivery pipeline with the multi-layer composite heat insulation structure in patent application 201310120344.1, the multi-layer composite co-extrusion mode is adopted, and the pipe with the heat insulation layer is obtained. This approach has the following disadvantages: the process is complex, a plurality of extruders are required to be arranged at the same time, the structural requirement on the cavity of the die is high, the process parameter setting is complicated, and the control is difficult; because the viscosity and the melting temperature of different resins are different, resins with similar performances are often adopted for co-extrusion, and the material selectivity is limited; in addition, after the forming, the pipe body is heavy and inconvenient to install and transport.

At present, large-scale chemical plants mostly adopt a coating mode to improve the heat preservation of a pipe body, namely a layer of asbestos tape is wound on the surface of the pipe body or the pipe body is coated with asbestos through an aluminum tape. In chemical plants, such as processes of engine oil concentration and extraction, monomer polymerization and the like, a plurality of devices such as a reaction kettle, a neutralization kettle, an alcohol washing kettle, an evaporation tower, a condensation tower and the like are required to be used at the same time, the process line is long, the required pipeline is complex, and the coating mode is inconvenient and difficult to operate under the conditions of long line and multiple pipelines; in addition, for an open workshop, the heat insulation stability of the workshop is greatly influenced by the external environment.

In order to improve the heat exchange efficiency of the pipe and reduce the dead weight of the pipe, for example, in patent application 201210024004.4, a polyurethane multilayer co-extruded plastic heat-insulating pipe and a production method thereof realize the effects of heat insulation and light weight by filling a foaming heat-insulating material in the pipe. And the factors determining the heat insulation performance of the foaming material comprise the raw material and the closed porosity. In addition, the foaming gun is adopted to spray the foaming slurry into the pipeline to enable the foaming slurry to foam and fill naturally, and the defect of poor filling uniformity exists.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the production device of the pipe body which has high strength and good cutting uniformity and can monitor defective products on line and the production method of the reinforced pipe body based on the device.

The invention solves the technical problems through the following technical means: a method of producing a reinforced pipe body comprising the steps of:

mixing polyvinyl chloride resin and glass fiber modified polypropylene in a mixing device, and adding a titanate coupling agent, vinyl trimethoxy silane, calcium carbonate, n-octadecyl propionate, titanium dioxide and a benzophenone ultraviolet absorbent for mixing;

and step two, after the mixture is extruded by an extruder, sizing, cooling, drawing, cutting and detecting the mixture in sequence to obtain the product.

Preferably, the polyvinyl chloride resin comprises 70-90 parts of polyvinyl chloride resin, 1-3 parts of titanate coupling agent, 1-2 parts of vinyl trimethoxy silane, 10-20 parts of glass fiber modified polypropylene, 20-35 parts of calcium carbonate, 0.1-0.5 part of n-octadecyl propionate, 1-2 parts of titanium dioxide and 2-5 parts of benzophenone ultraviolet absorbent.

Preferably, the temperatures of the extruder from the hopper to the die are respectively as follows: 50 to 63 ℃, 205 to 210 ℃, 210 to 215 ℃, 218 to 220 ℃ and 215 to 218 ℃.

The invention also discloses a production device of the pipe body, which sequentially comprises a mixing device, an extruder, a cooling device and a cutting machine from front to back according to the process flow, and a pipe body surface detection device is also arranged at the back of the cutting machine; the cooling device comprises a cooling heat exchange pipeline and a water cooling tank body assembly; the cooling heat exchange pipeline is arranged in the water-cooling groove body assembly, the water-cooling groove body assembly comprises a plurality of water-cooling groove bodies, and the water-cooling groove bodies are sequentially arranged from front to back according to a cooling sequence; the number of the cooling heat exchange pipelines is multiple and the cooling heat exchange pipelines are connected in parallel, and each cooling heat exchange pipeline extends from the starting end of the water cooling tank body at the starting position to the tail end of the water cooling tank body at the ending position; the bottom of the water-cooling tank body assembly is provided with a water collecting tank which is respectively communicated with the corresponding water-cooling tank body through a pipeline or extends to the upper part of the opening of the corresponding water-cooling tank body; the cutting machine comprises a base, a sliding table, a first motor, a screw rod, a movable block, a second motor, a worm rod, a turbine, a cutting knife, a clamping cylinder assembly and a pushing cylinder; the base is provided with two guide rails along the length direction of the base, and the sliding table is in sliding fit with the base through the guide rails; the screw rod is vertically arranged, the bottom of the screw rod is rotationally connected with the base through a first bearing, and the top or the upper end of the screw rod is connected with the first motor; the movable block is matched with the screw rod through a threaded sleeve, the movable block is rotatably connected with the worm rod through a second bearing, the top or upper end of the worm rod is connected with the second motor, the lower end of the worm rod is matched with the worm wheel, and the cutting knife is connected with the worm wheel through a shaft; the clamping air cylinder assembly comprises a first air cylinder and a second air cylinder, and the first air cylinder and the second air cylinder are respectively arranged on two sides of the sliding table in the width direction; the piston rod end of the pushing cylinder is connected with the sliding table, and the pushing cylinder stretches and retracts to drive the sliding table to slide on the base; a lever-type blanking device is further arranged between the cutting machine and the pipe body surface detection device and comprises a fixed seat, a supporting plate and a lifting cylinder, the fixed seat is pivotally connected with the middle section of the supporting plate, the length direction of the supporting plate is consistent with that of the base, and the bottom end part of the supporting plate is hinged with the lifting cylinder; the surface detection device is positioned below the lever type blanking device and comprises a cylinder, a lower cover plate, a support cylinder and a third motor, the cylinder is vertically arranged and is connected with an output shaft of the third motor, a pipe falling through hole is formed in the edge of the end face of the cylinder and penetrates through the cylinder from top to bottom, and a plurality of pipe falling through holes are annularly surrounded at equal intervals by taking the central axis of the cylinder as a center; the fixed end of the supporting cylinder is fixed below the cylinder, the piston rod end of the supporting cylinder is connected with the bottom of the cylinder, the lower cover plate is positioned on the fixed end of the supporting cylinder, the projection of the lower cover plate in the vertical direction completely covers the projection of the cylinder in the vertical direction, and the piston rod end of the supporting cylinder penetrates out of the lower cover plate; the outer surface of the cylinder is provided with air holes, each drop tube through hole is sleeved with an annular air bag, and the annular air bags are communicated with the air holes.

Preferably, a circle of supporting block is fixed at the bottom of the cylinder, and the end of the piston rod end of the supporting cylinder is connected with the supporting block; the number of the supporting cylinders is multiple.

Preferably, the lower cover plate is sandwich structure, including the first cover plate under that is located the top, the second cover plate under that is located the below, be connected with the spring part between first cover plate, the second lower cover plate.

Preferably, a length measuring sensor is arranged in the area, close to the cutting knife, of the base, a first proximity switch is arranged on the supporting plate, all motors are servo motors, and all cylinders are servo cylinders; the length measuring sensor is used for sending detected pipe length signals to the numerical control center, the first proximity switch is used for sending the detected pipe proximity signals to the numerical control center, and the numerical control center is used for controlling the motion states of the servo motors and the servo cylinders.

The invention also discloses a production device of the composite pipe body, which sequentially comprises a mixing device, an extruder, a cooling device, a cutting machine, a lever type blanking device, a pipe body surface detection device and an end cover ring assembly device from front to back according to the process flow; the cooling device comprises a cooling heat exchange pipeline and a water cooling tank body assembly; the cooling heat exchange pipeline is arranged in the water-cooling groove body assembly, the water-cooling groove body assembly comprises a plurality of water-cooling groove bodies, and the water-cooling groove bodies are sequentially arranged from front to back according to a cooling sequence; the number of the cooling heat exchange pipelines is multiple and the cooling heat exchange pipelines are connected in parallel, and each cooling heat exchange pipeline extends from the starting end of the water cooling tank body at the starting position to the tail end of the water cooling tank body at the ending position; the bottom of the water-cooling tank body assembly is provided with a water collecting tank which is respectively communicated with the corresponding water-cooling tank body through a pipeline or extends to the upper part of the opening of the corresponding water-cooling tank body; the cutting machine comprises a base, a sliding table, a first motor, a screw rod, a movable block, a second motor, a worm rod, a turbine, a cutting knife, a clamping cylinder assembly and a pushing cylinder; the base is provided with two guide rails along the length direction of the base, and the sliding table is in sliding fit with the base through the guide rails; the screw rod is vertically arranged, the bottom of the screw rod is rotationally connected with the base through a first bearing, and the top or the upper end of the screw rod is connected with the first motor; the movable block is matched with the screw rod through a threaded sleeve, the movable block is rotatably connected with the worm rod through a second bearing, the top or upper end of the worm rod is connected with the second motor, the lower end of the worm rod is matched with the worm wheel, and the cutting knife is connected with the worm wheel through a shaft; the clamping air cylinder assembly comprises a first air cylinder and a second air cylinder, and the first air cylinder and the second air cylinder are respectively arranged on two sides of the sliding table in the width direction; the piston rod end of the pushing cylinder is connected with the sliding table, and the pushing cylinder stretches and retracts to drive the sliding table to slide on the base; the lever-type blanking device is further arranged between the cutting machine and the pipe body surface detection device and comprises a fixed seat, a supporting plate and a lifting cylinder, the fixed seat is pivotally connected with the middle section of the supporting plate, the length direction of the supporting plate is consistent with that of the base, and the two ends of the bottom of the supporting plate are hinged with the lifting cylinder; the surface detection device is positioned below the lever type blanking device and comprises a cylinder, a lower cover plate, a support cylinder and a third motor, the cylinder is vertically arranged and is connected with an output shaft of the third motor, a pipe falling through hole is formed in the edge of the end face of the cylinder and penetrates through the cylinder from top to bottom, and a plurality of pipe falling through holes are annularly surrounded at equal intervals by taking the central axis of the cylinder as a center; the fixed end of the supporting cylinder is fixed below the cylinder, the piston rod end of the supporting cylinder is connected with the bottom of the cylinder, the lower cover plate is positioned on the fixed end of the supporting cylinder, the projection of the lower cover plate in the vertical direction completely covers the projection of the cylinder in the vertical direction, and the piston rod end of the supporting cylinder penetrates out of the lower cover plate; an air hole is formed in the outer surface of the cylinder, an annular air bag is sleeved in each pipe dropping through hole, and the annular air bags are communicated with the air hole; the end cover ring assembling device is used for sealing the pipe body cut by the cutting machine; the end cover ring assembling device comprises a first workbench, a first base table, a first rotary material conveying plate, a first punching mechanism, a first push-out mechanism, a second base table, a second rotary material conveying plate, a second workbench, a second punching mechanism and a second push-out mechanism; a first open slot is formed in the table top of the first workbench, a first fixed shaft is arranged in the first open slot, the bottom of the first fixed shaft is connected with the inner bottom wall of the first open slot, and the top of the first fixed shaft extends vertically upwards; a first lifting mechanism is further arranged on the first open slot; the first stamping mechanism is positioned above the first workbench, and the central axis of a movement unit of the first stamping mechanism is collinear with the central axis of the first fixed shaft; the first base station is arranged on the table top of the first workbench, the middle part of the first rotary material conveying plate is in pivot connection with the first base station, the first rotary material conveying plate can be inclined to the lower end of the first rotary material conveying plate to be close to the top of the first fixed shaft, and the central axis of the rotary track of the first rotary material conveying plate and the central axis of the first fixed shaft are on the same plane; the first pushing mechanism is arranged on the table top of the first workbench, and a moving unit of the first pushing mechanism can move to the position above the first open slot; the second base station is also arranged on the table surface of the first workbench, the middle part of the second rotary material conveying plate is in pivot connection with the second base station, and the central axis of the rotary track of the second rotary material conveying plate is on the same plane with the central axis of the motion track of the motion unit of the first push-out mechanism; a second opening groove is formed in the table top of the second workbench, a second fixed shaft is arranged in the second opening groove, the bottom of the second fixed shaft is connected with the inner bottom wall of the second opening groove, and the top of the second fixed shaft extends vertically upwards; a second lifting mechanism is arranged on the second open slot; the second rotary material conveying plate can be inclined to the lower end of the second rotary material conveying plate to be close to the top of the second fixed shaft, and the central axis of the rotary track of the second rotary material conveying plate and the central axis of the second fixed shaft are on the same plane; the second stamping mechanism is located above the second workbench, and the central axis of the movement unit of the second stamping mechanism is collinear with the central axis of the second fixed shaft.

Preferably, the first lifting mechanism comprises a first driving mechanism, a first screw rod, a first screw sleeve and a first supporting plate; the first screw rod is vertically arranged, the first driving mechanism is used for driving the first screw rod to rotate, the first screw sleeve is matched with the first screw rod, and the first supporting plate is arranged on the first screw sleeve;

the second lifting mechanism comprises a second driving mechanism, a second screw rod, a second screw sleeve and a second supporting plate; the second screw rod is vertically arranged, the second driving mechanism is used for driving the second screw rod to rotate, the second screw sleeve is matched with the second screw rod, and the second supporting plate is arranged on the second screw sleeve.

Preferably, the first support plate and the second support plate are both L-shaped plates; the L-shaped plate comprises a horizontal part and a vertical part; the horizontal part is connected with the corresponding threaded sleeve, and the vertical part is far away from the corresponding fixed shaft.

Preferably, the first pushing-out mechanism comprises a first fixed seat, a first rotating shaft, a third driving mechanism, a first cam, a first sleeve, a first movable rod, a first pushing-out plate and a first elastic piece; the first fixed seat is arranged on the table top of the first workbench, the first rotating shaft is rotatably connected with the first fixed seat and is driven to rotate by the third driving mechanism; the first cam is sleeved on the first rotating shaft, the first sleeve is positioned between the first cam and the first open slot, the first movable rod is arranged in the first sleeve and is in sliding fit with the first sleeve, one end of the first movable rod can be contacted with the first cam, the other end of the first movable rod is connected with the first push-out plate, and the first elastic piece is connected between the first push-out plate and the first sleeve;

the second pushing mechanism comprises a second fixed seat, a second rotating shaft, a fourth driving mechanism, a second cam, a second sleeve, a second movable rod, a second pushing plate and a second elastic piece; the second fixed seat is arranged on the table top of the second workbench, the second rotating shaft is rotatably connected with the second fixed seat and drives the second rotating shaft to rotate through the fourth driving mechanism; the second cam cover is established in the second pivot, the second sleeve is located the second cam between the second open slot, locate in the second movable rod in the second sleeve with sliding fit in the second sleeve, the two ends of second movable rod can with the second cam contacts, the other end of second movable rod with the second ejector plate links to each other, the second elastic component is connected between second ejector plate, the second sleeve.

The invention has the advantages that: (1) the pipe body is always immersed in the heat exchange medium, so that the phenomenon of uneven heat exchange is avoided; compared with the water cooling in the prior art, the cooling of the invention adopts a gradually-reduced temperature cooling mode and then carries out the cold water cooling in the prior art, thereby avoiding the phenomenon of stress concentration caused by sudden change of the pipe body. (2) The invention can realize that the pipe body and the cutting knife are always in a relative static state in the cutting process, thereby avoiding the phenomenon that the end surface of the pipe body is greatly inclined due to the cutting mode in the prior art and reducing the frequency of secondary processing. (3) The surface detection device is used together with the lever type blanking device. The lever type blanking device provided by the invention is adopted to replace the conveying of a conveying belt in the prior art, so that the pipe body conveying and the vertical blanking are completed at one time, the equipment investment is saved, and the workshop section effect is improved. (4) Because its bottom all falls into to the lower cover closes the board after the body falls into the drum, so, the bottom of body is flushed, exposes the degree at drum top in observing each body, can judge which body cutting length has the deviation, also can estimate the deviation through direct comparison. (5) The invention clamps the pipe through the air bag, and can reduce the damage to the pipe body in the clamping process as much as possible by utilizing the flexible contact of the air bag. (6) The working process of the lifting cylinder is secondary extension movement, and the movement mode can meet the requirements that when a pipe body is suspended, the bottom of the pipe body is flush, the clamping is stable, and the upper end and the lower end of the pipe body can be observed.

Drawings

Fig. 1 is a block diagram of a production apparatus for producing a tube according to the present invention.

Fig. 2 is a schematic structural diagram of a cooling device in a pipe production apparatus according to the present invention.

Fig. 3 is a partially enlarged view of fig. 2 according to the present invention.

Fig. 4 is a schematic structural diagram of the cutting machine and the lever type blanking device in a matched state.

Fig. 5 is a schematic structural view of the support plate of the present invention.

Fig. 6 is a schematic structural view of the cutter of the present invention.

FIG. 7 is a schematic structural diagram of a device for detecting the surface of a tube according to the present invention.

FIG. 8 is a schematic diagram of an end face structure of a cylinder in the device for detecting the surface of a tube body according to the present invention.

FIG. 9 is a schematic view of the structure of the lower cover plate of the present invention.

Fig. 10 is an exploded view of the composite tubular body of the present invention.

Fig. 11 is a schematic structural view of the composite pipe body according to the present invention.

Fig. 12 is a schematic view of the end cap ring of the present invention.

Fig. 13 is a schematic structural view of an apparatus for assembling a composite pipe according to the present invention.

Fig. 14 is a schematic structural view of a first stage according to the present invention.

Fig. 15 is a schematic structural view of the first lifting mechanism of the present invention in which the driving mechanism is directly connected to the lead screw.

Fig. 16 is a schematic structural diagram of a first lifting mechanism of the driving mechanism connected with a screw rod through a reversing device.

Fig. 17 is a schematic structural view of the first push-out mechanism of the present invention.

Fig. 18 is a schematic structural view of an end face of the first sleeve in the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Example 1

As shown in fig. 1, the embodiment discloses a production device of a pipe body, which sequentially comprises a mixing device, an extruder, a cooling device, a cutting machine, a lever-type blanking device and a pipe body surface detection device from front to back according to a process flow.

As shown in fig. 2 to 3, the cooling device includes a cooling heat exchange pipe 1001 and a water cooling tank assembly; the cooling heat exchange pipeline 1001 is arranged in the water-cooled tank body assembly, the water-cooled tank body assembly comprises a plurality of water-cooled tank bodies, and the water-cooled tank bodies are sequentially arranged from front to back according to a cooling sequence; the number of the cooling heat exchange pipes 1001 is plural and the cooling heat exchange pipes 1001 are connected in parallel, and each cooling heat exchange pipe 1001 extends from the starting end of the water-cooled tank body located at the starting position to the tail end of the water-cooled tank body located at the ending position.

As shown in fig. 4-6, the cutting machine includes a base 301, a sliding table 302, a first motor 303, a lead screw, a movable block 306, a second motor 307, a worm 308, a turbine 309, a cutting knife 3010, a clamping cylinder assembly, and a pushing cylinder 3011. The base 301 is provided with two guide rails (not shown) along the length direction thereof, and the sliding table 302 is slidably engaged with the base 301 through the guide rails. The screw rod is vertically arranged, the bottom of the screw rod is rotatably connected with the base 301 through a first bearing, and the top or the upper end of the screw rod is connected with a first motor 303. The movable block 306 is matched with the screw rod through a threaded sleeve, a worm 308 is rotatably connected to the movable block 306 through a second bearing, the top or upper end of the worm 308 is connected with a second motor 307, the lower end of the worm 308 is matched with a turbine 309, and the cutting knife 3010 is connected with the turbine 309 through a shaft. The clamping cylinder assembly comprises a first cylinder 30121 and a second cylinder 30122, and the first cylinder 30121 and the second cylinder 30122 are respectively arranged on two sides of the sliding table 302 in the width direction. The piston rod end of the pushing cylinder 3011 is connected to the sliding table 302, and the pushing cylinder 3011 moves telescopically to drive the sliding table 302 to slide on the base 301. The lever type blanking device comprises a fixed seat 401, a supporting plate and a lifting cylinder 403, wherein the fixed seat 401 is pivotally connected with the middle section of the supporting plate, the length direction of the supporting plate is consistent with that of the base 301, the bottom end part of the supporting plate is hinged with the telescopic end of the lifting cylinder 403, and the fixed end of the lifting cylinder 403 is hinged with a support body (not shown). The surface detection device is positioned below the lever type blanking device, as shown in fig. 7-8, the surface detection device comprises a cylinder 501, a lower cover plate 502, a supporting cylinder 503 and a third motor (not shown in the figure), the cylinder 501 is vertically arranged, the center of the cylinder 501 is connected with an output shaft of the third motor, a pipe falling through hole 507 is formed in the edge of the end face of the cylinder 501, the pipe falling through hole 507 penetrates through the cylinder 501 from top to bottom, and the plurality of pipe falling through holes 507 are annularly surrounded with the central axis of the cylinder 501 as the center at equal intervals. The fixed end of the supporting cylinder 503 is fixed below the cylinder 501, the rod end of the supporting cylinder 503 is connected or contacted with the bottom of the cylinder 501, the lower covering plate 502 is positioned on the fixed end of the supporting cylinder 503, the projection of the lower covering plate 502 in the vertical direction completely covers the projection of the cylinder 501 in the vertical direction, and the rod end of the supporting cylinder 503 penetrates out of the lower covering plate 502. An air hole 506 is formed in the outer surface of the cylinder 501, an annular air bag 505 is sleeved in each drop tube through hole 507, and the annular air bags 505 are communicated with the air hole 506. The mixing device and the extruder of the invention adopt the prior art.

As shown in fig. 2, the number of the water cooling tank bodies in this embodiment is two, and the first cooling tank 1002 and the second cooling tank 1003 are arranged in sequence from the start end to the end. Preferably, a guide roller (not shown) is further provided in each cooling tank for supporting the tubular body 11 and providing a guide for the transportation of the tubular body 11.

According to the invention, high-temperature steam such as high-temperature steam distilled from a distillation still is conveyed into a cooling heat exchange pipeline 1001, and the high-temperature steam is subjected to heat exchange with water in a first cooling tank 1002 and a second cooling tank 1003 in sequence, so that the water temperature of the first cooling tank and the second cooling tank is increased. In a similar way, the heat exchange amount of the first cooling tank and the second cooling tank is gradually reduced, so the temperature of the first cooling tank and the temperature of the second cooling tank are gradually reduced.

The tube 11 cooled by the cooling device is continuously conveyed to the sliding table 302, when a set length of the tube 11 passes through the cutting knife 3010, the first cylinder 30121 and the second cylinder 30122 extend oppositely to clamp the tube 11, the pushing cylinder 3011 extends to push the sliding table 302 to move along the guide rail of the base 301, the moving rate is synchronous with the moving rate of the tube 11, the tube 11 and the sliding table 302 are relatively static, the first motor 303 and the second motor 307 start to work, the first motor 303 rotates forward to drive the movable block 306 to move downwards until the tube 11 is positioned, the second motor 307 rotates to drive the worm 308 to rotate, the cutting knife 3010 is driven to rotate by the action of the worm wheel 309 to cut the tube 11, after the cutting is completed, the cylinders are reset, the first motor 303 rotates reversely, the movable block 306 is reset, the second motor 307 stops working, and a cutting process is completed. Preferably, in order to improve the smoothness of the movement of the movable part matched with the screw rods, one or more guide rails are arranged for each screw rod, and the movable part is matched with the guide rails in a sliding mode. The lead screws of the following embodiments may also be each provided with a guide rail.

The front end of the cut pipe body 11 extends into the supporting plate, the lifting cylinder 403 is started at the moment, the lifting cylinder 403 extends to drive the rear end of the supporting plate to tilt, the front end of the supporting plate moves downwards, the pipe body 11 slides downwards to a certain pipe dropping through hole 507 of the cylinder 501 in an inclined manner, the length of the pipe dropping through hole 507 is shorter than that of the pipe body 11, the pipe dropping process is completed once, and the lifting cylinder 403 resets. By starting the third motor and the angular motion of the third motor, the cylinder 501 is driven to rotate intermittently, and the rotating angle at each time is the same as the included angle between the adjacent pipe falling through holes 507, so that the pipe body 11 sliding down from the supporting plate at each time can fall into one empty pipe falling through hole 507 until all the cylinders 501 are provided with one pipe body 11. At this time, the support cylinder 503 is activated to extend, the cylinder 501 moves upward, the lower end of the pipe body 11 is exposed from the pipe drop through hole 507, air is blown into the cylinder 501 through the air hole 506 until the annular air bag 505 is expanded to clamp the pipe body 11, and the air hole 506 is covered. The supporting cylinder 503 is continuously started to extend, and the lower end of the pipe body 11 is separated from the lower cover plate 502. Thus, the upper and lower ends of the tube body 11 are exposed out of the tube body, the length uniformity of each tube body 11 and the levelness of the end face of each tube body 11 are judged by observing the end parts of the upper and lower ends of the tube body 11, defective products are picked out, and the surface detection process of the tube body 11 is completed. The support cylinder 503 is reset, the gas in the airbag is discharged, and the pipe body 11 is detached.

Compared with the air cooling technology in the prior art, the pipe body 11 is always immersed in the heat exchange medium, so that the phenomenon of uneven heat exchange is avoided; compared with the water cooling in the prior art, the cooling of the invention adopts a gradually-reduced temperature cooling mode and then carries out the cold water cooling in the prior art, thereby avoiding the phenomenon of stress concentration caused by sudden change of the pipe body 11. The invention can realize that the pipe body 11 and the cutting knife 3010 are always in relative static state in the cutting process, avoid the phenomenon that the end surface of the pipe body 11 is greatly inclined caused by the cutting mode in the prior art, and reduce the frequency of secondary processing. The surface detection device is used together with the lever type blanking device. The lever type blanking device provided by the invention is adopted to replace the conveying of a conveying belt in the prior art, so that the conveying and vertical blanking of the pipe body 11 are finished at one time, the equipment investment is saved, and the workshop section effect is improved. As shown in fig. 5, in order to prevent the tube 11 from falling off the support plate during the rotation of the support plate, a plurality of stopper rings are installed in the length direction of the support plate. Because its bottom all falls into to lower cover and closes board 502 after body 11 falls into drum 501, so, the bottom of body 11 is flushed, through observing the degree that exposes drum 501 top in each body 11, can judge which body 11 cutting length has the deviation, also can estimate the deviation through direct comparison. The invention clamps the tube body 11 through the air bag, and can reduce the damage to the tube body 11 in the clamping process as much as possible by utilizing the flexible contact of the air bag. The working process of the lifting cylinder 403 is secondary extension movement, and the movement mode can meet the advantages that the bottom of the pipe body 11 is flush, the clamping is stable, and the upper end and the lower end of the pipe body can be observed when the pipe body is suspended.

As shown in fig. 2 and 3, the openings of all the water-cooling tank bodies of the present invention are upward, and the inner walls and the bottom walls of two sides of each water-cooling tank body are provided with corresponding cooling heat exchange pipes. The front and rear ends of all the water-cooling tanks are provided with material guiding ports 1004 for the pipe 11 to pass through and out of the tank.

As shown in fig. 2 and 3, in some embodiments, a water collecting tank 1005 is disposed at the bottom of the water-cooled tank assembly, and the water collecting tank 1005 is communicated with the corresponding water-cooled tank body or extends to the upper part of the opening of the corresponding water-cooled tank body through a pipeline 1006. The contact part of each heat exchange pipeline and the corresponding groove body is sealed by a sealing element.

Because the pipe 11 has a gap with the material guiding opening of the water-cooling tank body in the flowing process, the water in the tank body can gradually flow out from the material guiding opening, so that the water level in the tank body is gradually reduced. In order to supply water to the tank body, the water level of the tank body is ensured. According to the invention, the bottom of each group of water-cooled tank body assembly is provided with the water collecting tank, the effluent water is collected in the water collecting tank, and the water in the water collecting tank is pumped into the tank body again through the pipeline for circulating water supply.

The invention can also be provided with a liquid level sensor and a temperature sensor on the inner side wall of each water-cooling tank body. And all the pipelines are provided with pumps and valves. The pump is preferably a servo pump and the valve is preferably a solenoid valve.

The invention monitors the temperature of each tank body in real time through the liquid level sensor, and reasonably shunts the waste heat by matching the action of the electromagnetic valve and the servo pump. The liquid sensor monitors the water level of the tank body, and when the water level of the tank body is lower than a set water level, the water in the water collecting tank is supplemented to the corresponding tank body through the action of the electromagnetic valve and the servo pump.

As shown in fig. 7, in some embodiments, a ring of support blocks 508 is fixed to the bottom of the cylinder 501, and the ends of the rod ends of the support cylinders 503 are connected to the support blocks 508. The number of the support cylinders 503 is plural. Because the edge of the cylinder 501 is provided with a plurality of tube falling through holes 507 penetrating through the cylinder 501, the end part of the piston rod end of the supporting cylinder 503 directly acts on the edge of the cylinder 501, which can lead to supporting point positions and less narrow areas, and affects the lifting stability of the cylinder 501. Therefore, a ring of support block 508 is fixed to the bottom of the cylinder 501, and the supportable area of the end of the rod end of the support cylinder 503 is increased.

As shown in fig. 9, in some embodiments, the lower cover plate 502 is a sandwich structure, and includes a first lower cover plate 5021 located above and a second lower cover plate 5022 located below, and a spring piece 5023 is connected between the first lower cover plate 5021 and the second lower cover plate 5022. Because body 11 directly falls into when drum 501, its bottom is direct to strike lower cover and closes board 502, probably leads to its bottom of body 11 impaired, so, with lower cover and close board 502 set up to the sandwich structure who drives the spring, the cushioning effect through the spring reduces the impact volume in the twinkling of an eye that body 11 received.

In some embodiments, a length measuring sensor is disposed in a region of the base 301 close to the cutting blade 3010, a first proximity switch is disposed on the supporting plate, all motors are servo motors, and all cylinders are servo cylinders; the length measuring sensor is used for sending detected length signals of the pipe body 11 to the numerical control center, the first proximity switch is used for sending the detected pipe body proximity signals to the numerical control center, and the numerical control center is used for controlling the motion states of the servo motors and the servo cylinders.

When the length conveyed by the pipe body 1 reaches the detection length of the length measuring sensor, the length measuring sensor sends a signal to a numerical control center such as a PLC (programmable logic controller), the numerical control center sends an indication signal to drive a first motor to rotate in a forward direction, drive a second motor to rotate, drive a first air cylinder and a second air cylinder to extend in opposite directions, drive a pushing air cylinder to extend and move, drive a lifting air cylinder to reset, when the end part of the pipe body is close to a first proximity switch, the proximity switch sends a signal to the numerical control center, the numerical control center sends an indication signal to drive the first motor to rotate in a reverse direction until a movable block 306 resets, the second motor rotates and stops rotating, drive the lifting air cylinder 403 to extend and retract so as to enable the rear end of a support plate to tilt and the front end to move downwards, and drive a third motor to move angularly.

Example 2

The embodiment discloses a method for producing a reinforced pipe body 11 by using the production device of the pipe body in the embodiment 1, comprising the following steps of firstly, mixing polyvinyl chloride resin and glass fiber modified polypropylene in a mixing device, and then adding a titanate coupling agent, vinyl trimethoxy silane, calcium carbonate, n-octadecyl propionate, titanium dioxide and a benzophenone ultraviolet absorbent for mixing;

and step two, after the mixture is extruded by an extruder, sizing, cooling, drawing, cutting and detecting the mixture in sequence to obtain the product.

Preferably, 70-90 parts of polyvinyl chloride resin, 1-3 parts of titanate coupling agent, 1-2 parts of vinyl trimethoxy silane, 10-20 parts of glass fiber modified polypropylene, 20-35 parts of calcium carbonate, 0.1-0.5 part of n-octadecyl propionate, 1-2 parts of titanium dioxide and 2-5 parts of benzophenone ultraviolet absorbent; the temperature of the extruder from the hopper to the neck mold is respectively as follows: 50 to 63 ℃, 205 to 210 ℃, 210 to 215 ℃, 218 to 220 ℃ and 215 to 218 ℃.

Example 3

As shown in fig. 10 to 12, the present embodiment discloses a composite pipe 11, which sequentially comprises raw material mixing, extrusion, cooling, drawing, and cutting. The tube body 11 comprises an inner tube body 111 and an outer tube body 112, and a gap layer is formed between the inner tube body 111 and the outer tube body 112;

a framework 13 is arranged in the gap layer, and two ends of the framework 13 are respectively connected with the inner-layer pipe body 111 and the outer-layer pipe body 112; the plurality of frameworks 13 surround the central shaft of the pipe body 11 at intervals, and an accommodating through cavity 14 is formed between the adjacent frameworks 13 and the inner pipe body 111 and the outer pipe body 112.

The pipe body 11 is prepared from the following raw materials in parts by mass: 70-90 parts of polyvinyl chloride resin, 1-3 parts of titanate coupling agent, 1-2 parts of vinyl trimethoxy silane, 10-20 parts of glass fiber modified polypropylene, 20-35 parts of calcium carbonate, 0.1-0.5 part of n-octadecyl propionate, 1-2 parts of titanium dioxide and 2-5 parts of benzophenone ultraviolet absorbent; the heat insulation foam material comprises the following raw materials in parts by mass: 20-30 parts of polyvinyl chloride, 2-4 parts of polyacrylate emulsion, 0.5-0.8 part of maleic acid-acrylic acid copolymer sodium salt, 2-3 parts of coral tree powder, 1-2 parts of schima superba powder, 0.5-2 parts of aramid short fiber sheet, 1-2 parts of polyimide short fiber sheet, 0.5-1 part of azodicarbonamide, 0.5-1 part of tween, 0.3-0.6 part of alumina powder, 0.1-0.3 part of magnesium oxide powder and 0.2-0.5 part of silicon dioxide powder;

the tube body 11 further comprises an end cover ring 15, and the end cover ring 15 can cover the end part of the tube body 11; the end cover ring 15 is provided with a plurality of protruding blocks, and the periphery of each protruding block is coated with a rubber layer 1511; the protruding blocks correspond to the accommodating through cavities 14 one to one, and the protruding blocks can be in interference fit with the accommodating through cavities 14.

The invention also discloses a method for preparing the thermal insulation foam material, which comprises the following steps:

(1) mixing and stirring coral tree powder, schima superba powder, aramid fiber short fiber sheet, polyimide short fiber sheet, alumina powder, magnesia powder, silica powder, maleic acid-acrylic acid copolymer sodium salt, polyvinyl chloride and polyacrylate emulsion;

(2) and (3) adding azodicarbonamide and tween into the step (1), pouring into a mold preheated to 40 ℃ after 10-15 s, and then placing into an oven at 65-70 ℃ for foaming for 10-15 min.

Example 4

As shown in fig. 13 to 14, this example discloses an apparatus for producing a composite tube body described in example 3, which is provided at a subsequent stage of the tube body surface inspecting apparatus to assemble the composite tube body, compared to the apparatus of example 1, and includes a first table 201, a first base 202, a first rotary feed plate 203, a first punching mechanism 204, a first push-out mechanism 205, a second base 206, a second rotary feed plate 207, a second table 208, a second punching mechanism 209, and a second push-out mechanism 2010; a first opening groove 2011 is formed in the table top of the first workbench 201, a first fixed shaft 2012 is arranged in the first opening groove 2011, the bottom of the first fixed shaft 2012 is connected with the inner bottom wall of the first opening groove 2011, and the top of the first fixed shaft 2012 vertically extends upwards; a first lifting mechanism 2013 is further arranged on the first opening groove 2011;

the first stamping mechanism 204 is located above the first workbench 201, and a central axis of a moving unit of the first stamping mechanism 204 is collinear with a central axis of the first fixed shaft 2012;

the first base 202 is arranged on the top of the first workbench 201, the middle of the first rotating material conveying plate 203 is pivotally connected to the first base 202, the lower end of the first rotating material conveying plate 203 can be tilted to be close to the top of the first fixed shaft 2012, and the central axis of the rotating track of the first rotating material conveying plate 203 is on the same plane as the central axis of the first fixed shaft 2012; a first push-out mechanism 205 is arranged on the top surface of the first table 201, and a moving unit of the first push-out mechanism 205 can move above the first opening groove 2011;

the second base table 206 is also arranged on the table top of the first working table 201, the middle part of the second rotary material conveying plate 207 is pivotally connected with the second base table 206, and the central axis of the rotary track of the second rotary material conveying plate 207 and the central axis of the motion track of the motion unit of the first push-out mechanism 205 are on the same plane;

a second opening groove 2081 is formed in the table top of the second workbench 208, a second fixing shaft 2082 is arranged in the second opening groove 2081, the bottom of the second fixing shaft 2082 is connected with the inner bottom wall of the second opening groove 2081, and the top of the second fixing shaft 2082 vertically extends upwards; a second lifting mechanism 2083 is further arranged on the second opening groove 2081; the second rotating material conveying plate 207 can be inclined to a lower end close to the top of the second fixing shaft 2082, and the central axis of the rotating track of the second rotating material conveying plate 207 is on the same plane with the central axis of the second fixing shaft 2082;

the second punching mechanism 209 is located above the second table 208, and a central axis of a movement unit of the second punching mechanism 209 is collinear with a central axis of the second fixing shaft 2082.

According to the invention, the pipe body 11 extruded and molded by the extruder is conveyed to the first rotating material conveying plate 203, the pipe body 11 slides downwards under the action of gravity until the bottom of the pipe body 11 is sleeved into the first fixed shaft 2012 by rotating the first rotating material conveying plate 203 until the pipe body inclines towards the position direction of the first open slot 2011, the pipe body 11 continues to slide downwards until the bottom of the pipe body 11 is contacted with the first lifting mechanism 2013, at the moment, the first lifting mechanism 2013 descends to drive the pipe body 11 to descend synchronously until the pipe body 11 is vertically inserted into the first fixed shaft 2012, in actual processing, the top of the pipe body 11 is ensured to be exposed out of the first fixed shaft 2012, one end cover ring 15 is placed at an opening at the top of the pipe body 11, the first stamping mechanism 204 is started, and the first stamping mechanism 204 presses the end cover ring 15 downwards to be pressed at the opening at the top of the. The first lifting mechanism 2013 is started to lift, so that the pipe body 11 is driven to move upwards until most of the pipe body or the first fixed shaft 2012 is completely exposed. The first pushing-out mechanism 205 is started, the second rotary material conveying plate 207 is rotated to the position that the lower end of the second rotary material conveying plate 207 is close to the first open slot 2011, the first pushing-out mechanism 205 pushes the pipe body 11 to the second rotary material conveying plate 207, after the pipe body 11 falls on the second rotary material conveying plate 207, the second rotary material conveying plate 207 is rotated reversely until the bottom of the pipe body 11 is close to the second open slot 2081, the pipe body 11 slides downwards under the action of gravity until the bottom of the pipe body 11 is sleeved into the second fixed shaft 2082, the pipe body 11 continues to slide downwards until the bottom of the pipe body is contacted with the second lifting mechanism 2083, at the moment, the second lifting mechanism 2083 descends to drive the pipe body 11 to synchronously descend until the pipe body 11 is vertically inserted into the second fixed shaft 2082, in actual processing, the second fixed shaft 2082 is ensured to be exposed at the top of the pipe body 11, the heat insulation and heat preservation foaming material is filled between the inner layer pipe body, the other end cap ring 15 is placed at the opening of the top of the tube 11 (the top is the bottom of the previous working section), the second punching mechanism 209 is started, and the second punching mechanism 209 is pressed down to press the end cap ring 15 at the opening of the top of the tube 11. The second lifting mechanism 2083 is started to ascend to drive the pipe body 11 to move upwards until most of the pipe body is exposed out of the second fixed shaft 2082 or completely. And starting the second pushing mechanism 2010 to push the processed pipe body 11 out, so as to finish the processing.

The first rotary material conveying plate 203 and the second rotary material conveying plate 207 can be driven to rotate by the air cylinders. Specifically, the cylinder body end of the cylinder is hinged with the base station, and the piston rod end of the cylinder body is hinged with the rotary material conveying plate. The rotary material conveying plate is driven to rotate through the telescopic motion of the end of the piston rod. Of course, other prior art rotation means are within the scope of the present invention, including manual control.

In the conventional foaming material, the foaming material is sprayed in the interlayer of the pipe body 11 by the spraying action of a foaming gun, so that the foaming material naturally expands in the interlayer to realize the filling action. The foaming material is in disorder expansion and expansion foaming in the interlayer, so that the filling uniformity of the foaming material in the interlayer is poor. The device can adopt a filling method to cut the foamed material into small blocks, fill the small blocks into the accommodating through cavity 14 formed between the inner layer tube body 111 and the outer layer tube body 112, the filling uniformity is controllable, the end part of the tube body 11 is sealed in a stamping mode, the foamed material is ensured to be always remained in the accommodating through cavity 14, and the phenomenon that the interface adhesive force between the traditional foamed material and the tube wall is low to cause falling off is avoided. The device can realize the effects of vertical filling and vertical stamping, and the vertical filling can enable the foaming material to be gradually stacked from the bottom of the tube body 11 to the top of the tube body 11 under the action of gravity, so that the device is more convenient to fill longer tube bodies 11. In addition, the end capping and material filling flow property of the invention is strong, and the conveying of the pipe body 11 and the reversing of the end part of the pipe body 11 can be realized through the intervention of the rotary conveying plate. The central axis of the motion unit of the first stamping mechanism 204 is collinear with the central axis of the first fixed shaft 2012, the central axis of the rotation locus of the first rotating material conveying plate 203 is coplanar with the central axis of the first fixed shaft 2012, the central axis of the rotation locus of the second rotating material conveying plate 207 is collinear with the central axis of the motion locus of the motion unit of the first pushing-out mechanism 205, the central axis of the rotation locus of the second rotating material conveying plate 207 is coplanar with the central axis of the second fixed shaft 2082, and the central axis of the motion unit of the second stamping mechanism 209 is collinear with the central axis of the second fixed shaft 2082, so that the pipe body 11 can be ensured to accurately fall onto a corresponding component all the time, and the situation of dislocation is prevented.

In addition, in order to ensure that the end cap ring 15 can be firmly covered in the accommodating through cavity 14, the rubber layer 1511 on the end cap ring 15 can be preheated and softened before punching.

Example 5

As shown in fig. 15 to 16, the present embodiment is different from embodiment 13 in that: the first lifting mechanism 2013 and the second lifting mechanism 2083 have the same structure, the invention is disclosed by a structural object of the first lifting mechanism 2013, and the structure and the working principle of the second lifting mechanism 2083 refer to the first lifting mechanism 2013.

The first lifting mechanism 2013 comprises a first driving mechanism 20134, a first screw rod 20131, a first screw sleeve 20132 and a first supporting plate 20133; the first screw rod 20131 is vertically arranged, the first driving mechanism 20134 is used for driving the first screw rod 20131 to rotate, the first screw sleeve 20132 is matched with the first screw rod 20131, and the first supporting plate 20133 is arranged on the first screw sleeve 20132.

The lifting mechanism of the present invention may also be a cylinder, cylinder or other prior art.

The drive mechanism of the present invention may be an electric motor or a motor. The first drive mechanism 20134 may be coupled directly to the first lead screw 20131 or may be coupled to the first lead screw 20131 via a reversing device such as a bevel gear set. According to the invention, the driving mechanism drives the first screw rod 20131 to rotate, and the first screw rod 20131 rotates to drive the first screw sleeve 20132 to move up and down, so that the first supporting plate 20133 is driven to move up and down. According to the invention, the end part of the pipe body 11 is supported by the first supporting plate 20133, so that the stability of the lifting motion of the pipe body 11 is ensured.

Example 6

As shown in fig. 17 and 18, the present embodiment is different from embodiment 13 in that: the first pushing mechanism 205 and the second pushing mechanism have the same structure, the invention is disclosed with respect to the structure of the first pushing mechanism 205, and the structure and the operation principle of the second pushing mechanism 2010 are referred to the first pushing mechanism 205.

The first pushing mechanism 205 includes a first fixed seat 2051, a first rotating shaft 2052, a third driving mechanism (not shown in the figure), a first cam 2054, a first sleeve 2055, a first movable rod 2056, a first pushing plate 2057, and a first elastic member 2058; the first fixed seat 2051 is arranged on the table top of the first workbench 201, the first rotating shaft 2052 is rotatably connected with the first fixed seat 2051, and the first rotating shaft 2052 is driven to rotate by the third driving mechanism; the first cam 2054 is sleeved on the first rotating shaft 2052, the first sleeve 2055 is located between the first cam 2054 and the first open groove 2011, the first movable rod 2056 is arranged in the first sleeve 2055 and is in sliding fit with the first sleeve 2055, one end of the first movable rod 2056 can be in contact with the first cam 2054, the other end of the first movable rod 2056 is connected with the first push-out plate 2057, and the first elastic piece 2058 is connected between the first push-out plate 2057 and the first sleeve 2055.

The first sleeve 2055 of the present invention may be supported on the table top of the first table 201 by feet. According to the invention, the third driving mechanism drives the first rotating shaft 2052 to rotate, the first rotating shaft 2052 rotates to drive the first cam 2054 to rotate, when the protruding part of the first cam 2054 rotates to be in contact with the first movable rod 2056, the first movable rod 2056 gradually extends towards the position of the first open slot 2011, the first elastic element 2058 is stretched, and after the protruding part of the first cam 2054 rotates out of the first movable rod 2056, the first movable rod 2056 is restored under the resilience action of the elastic element, so that the telescopic movement of the first movable rod 2056 is completed.

Compared with the connecting rod transmission or pneumatic rotation mode in the prior art, the cam transmission mode has the advantages of simple structure and convenience in operation. In addition, the traditional cam transmission mode is mostly suitable for the vertical direction, and the lifting of the movable part is realized by relying on the action of gravity. As shown in fig. 10, in order to prevent the first movable rod 2056 from fluctuating due to the rebound of the elastic member such as a spring, a slide groove is formed in the inner wall of the first sleeve 2055, and a slider slidably fitted to the slide groove is provided on the first movable rod 2056.

In some embodiments, the top of each of the first rotary material feeding plate 203 and the second rotary material feeding plate 207 is provided with a material guiding groove, and a central axis of the material guiding groove is collinear with a central axis of the corresponding rotary material feeding plate. The cross section of the guide chute is arc-shaped, and the guide chute is parallel to the axial direction of the corresponding rotary material conveying plate.

The material guide groove is used for placing the pipe body 11, and has a limiting effect on the position of the pipe body 11 in the rotary material conveying plate. For some tube bodies 11 with larger outer diameters, the guide chute is difficult to limit, in some embodiments, the inner wall of the guide chute is provided with grains, and the friction coefficient of the inner wall of the guide chute is increased by the arrangement of the grains, so that the limiting effect is improved.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (6)

1. A production device of a pipe body sequentially comprises a mixing device, an extruder, a cooling device and a cutting machine from front to back according to a process flow; the cutting machine is characterized by further comprising a pipe body surface detection device at the rear of the cutting machine; the cooling device comprises a cooling heat exchange pipeline and a water cooling tank body assembly; the cooling heat exchange pipeline is arranged in the water-cooling groove body assembly, the water-cooling groove body assembly comprises a plurality of water-cooling groove bodies, and the water-cooling groove bodies are sequentially arranged from front to back according to a cooling sequence; the number of the cooling heat exchange pipelines is multiple and the cooling heat exchange pipelines are connected in parallel, and each cooling heat exchange pipeline extends from the starting end of the water cooling tank body at the starting position to the tail end of the water cooling tank body at the ending position; the bottom of the water-cooling tank body assembly is provided with a water collecting tank which is respectively communicated with the corresponding water-cooling tank body through a pipeline or extends to the upper part of the opening of the corresponding water-cooling tank body; the cutting machine comprises a base, a sliding table, a first motor, a screw rod, a movable block, a second motor, a worm rod, a turbine, a cutting knife, a clamping cylinder assembly and a pushing cylinder; the base is provided with two guide rails along the length direction of the base, and the sliding table is in sliding fit with the base through the guide rails; the screw rod is vertically arranged, the bottom of the screw rod is rotationally connected with the base through a first bearing, and the top or the upper end of the screw rod is connected with the first motor; the movable block is matched with the screw rod through a threaded sleeve, the movable block is rotatably connected with the worm rod through a second bearing, the top or upper end of the worm rod is connected with the second motor, the lower end of the worm rod is matched with the worm wheel, and the cutting knife is connected with the worm wheel through a shaft; the clamping air cylinder assembly comprises a first air cylinder and a second air cylinder, and the first air cylinder and the second air cylinder are respectively arranged on two sides of the sliding table in the width direction; the piston rod end of the pushing cylinder is connected with the sliding table, and the pushing cylinder stretches and retracts to drive the sliding table to slide on the base; a lever-type blanking device is further arranged between the cutting machine and the pipe body surface detection device and comprises a fixed seat, a supporting plate and a lifting cylinder, the fixed seat is pivotally connected with the middle section of the supporting plate, the length direction of the supporting plate is consistent with that of the base, and the bottom end part of the supporting plate is hinged with the lifting cylinder; the surface detection device is positioned below the lever type blanking device and comprises a cylinder, a lower cover plate, a support cylinder and a third motor, the cylinder is vertically arranged and is connected with an output shaft of the third motor, a pipe falling through hole is formed in the edge of the end face of the cylinder and penetrates through the cylinder from top to bottom, and a plurality of pipe falling through holes are annularly surrounded at equal intervals by taking the central axis of the cylinder as a center; the fixed end of the supporting cylinder is fixed below the cylinder, the piston rod end of the supporting cylinder is connected with the bottom of the cylinder, the lower cover plate is positioned on the fixed end of the supporting cylinder, the projection of the lower cover plate in the vertical direction completely covers the projection of the cylinder in the vertical direction, and the piston rod end of the supporting cylinder penetrates out of the lower cover plate; the outer surface of the cylinder is provided with air holes, each drop tube through hole is sleeved with an annular air bag, and the annular air bags are communicated with the air holes.

2. The apparatus for producing a pipe body as claimed in claim 1, wherein a ring of support blocks are fixed to a bottom of the cylinder, and ends of rod ends of the support cylinders are connected to the support blocks; the number of the supporting cylinders is multiple.

3. The production device of the pipe body as claimed in claim 1, wherein the lower cover plate is of a sandwich structure and comprises a first lower cover plate located above and a second lower cover plate located below, and a spring member is connected between the first lower cover plate and the second lower cover plate.

4. The production device of the pipe body according to claim 1, wherein a length measuring sensor is arranged in a region of the base, which is close to the cutting knife, a first proximity switch is arranged on the supporting plate, all motors are servo motors, and all cylinders are servo cylinders; the length measuring sensor is used for sending detected pipe length signals to the numerical control center, the first proximity switch is used for sending the detected pipe proximity signals to the numerical control center, and the numerical control center is used for controlling the motion states of the servo motors and the servo cylinders.

5. A method of producing a reinforced tubular body using a production apparatus for a tubular body according to any one of claims 1 to 4, comprising the steps of: mixing polyvinyl chloride resin and glass fiber modified polypropylene in a mixing device, and adding a titanate coupling agent, vinyl trimethoxy silane, calcium carbonate, n-octadecyl propionate, titanium dioxide and a benzophenone ultraviolet absorbent for mixing; and step two, after the mixture is extruded by an extruder, sizing, cooling, drawing, cutting and detecting the mixture in sequence to obtain the product.

6. The method for producing a reinforced pipe body according to claim 5, wherein the polyvinyl chloride resin comprises 70 to 90 parts by weight of a titanate coupling agent, 1 to 3 parts by weight of a vinyltrimethoxysilane, 1 to 2 parts by weight of a glass fiber-modified polypropylene, 20 to 35 parts by weight of calcium carbonate, 0.1 to 0.5 part by weight of n-octadecyl propionate, 1 to 2 parts by weight of titanium dioxide, and 2 to 5 parts by weight of a benzophenone-based ultraviolet absorber; the temperature of the extruder from the hopper to the neck mold is respectively as follows: 50 to 63 ℃, 205 to 210 ℃, 210 to 215 ℃, 218 to 220 ℃ and 215 to 218 ℃.

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