CN110551965B

CN110551965B - Double-station cast tube surface zinc spraying machine

Info

Publication number: CN110551965B
Application number: CN201910770526.0A
Authority: CN
Inventors: 徐砚琛
Original assignee: Zhejiang Shenao Machinery Engineering Co Ltd
Current assignee: Hangzhou Chunfeng Mechanical Engineering Co.,Ltd.
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2021-06-18
Anticipated expiration: 2039-08-20
Also published as: CN110551965A

Abstract

The invention relates to a double-station cast tube surface zinc spraying machine.A zinc spraying trolley is arranged on a rack and transversely moves along the rack; the wire feeding adjusting device is arranged below the zinc spraying trolley and connected with the zinc spraying trolley, and spray gun assemblies for spraying zinc on the surface of the cast pipe are arranged on two sides of the wire feeding adjusting device; the two sets of pushing and rotating mechanisms are arranged below the rack and are used for clamping two casting pipes and driving the casting pipes to rotate, the wire feeding adjusting device is driven by the zinc spraying trolley to transversely move along the axial direction of the casting pipes in the rotating process of the casting pipes, and the spray gun assembly sprays zinc on the surfaces of the casting pipes in the transversely moving process; the cast tube feeding and discharging mechanism is arranged below the rack and used for feeding the cast tubes to the pushing and rotating mechanism and taking the cast tubes subjected to zinc spraying down from the pushing and rotating mechanism; the dust removal device is arranged above the pushing and rotating mechanism and used for treating zinc mist generated in the zinc spraying processing process. The double-station zinc spraying machine can spray zinc to two casting pipes at one time, and has the characteristics of wide application range, stable operation, simple operation and the like.

Description

Double-station cast tube surface zinc spraying machine

Technical Field

The invention relates to the technical field of cast tube zinc spraying equipment, in particular to a double-station cast tube surface zinc spraying machine.

Background

At present, in order to increase the corrosion resistance of the surface of a cast iron pipe, zinc spraying is generally performed on the surface of the cast iron pipe by using a zinc spraying machine, and then asphalt is coated. The zinc coating has two functions: firstly, because the electrochemical potential of zinc is lower than that of iron, the iron is protected from corrosion through the reaction of zinc; and secondly, when the zinc is corroded by the salt solution, indissolvable compounds (zinc phosphate, zinc chloride and zinc sulfate) are generated to cover the surface of the pipe, so that the invasion of a corrosive medium is slowed down.

Most of the traditional zinc spraying machines are single-station zinc spraying machines, only one casting tube can be sprayed with zinc at a time, and the efficiency is low, so that double-station zinc spraying is gradually developed, for example, a patent with an authorization publication number of CN 201545903U: a nodular cast iron pipe duplex position spouts zinc machine, but current spout zinc machine still has following defect: 1. the feeding and discharging mechanism of the cast tube is unreasonable in design, so that the feeding and discharging time is too long, and the working efficiency of the zinc spraying machine is influenced; 2. the pushing rotating mechanisms used for clamping two ends of the cast pipe are easy to generate radial deviation in the process of driving the cast pipe to rotate, so that the abrasion of a pushing main shaft is aggravated, and the pushing rotating mechanisms are easy to break down; 3. the telescopic air pipe used for timely pumping out the zinc mist generated in the processing process is blocked in the telescopic moving process, and the like.

Therefore, there is a need for improvements and optimizations to existing zinc spray machines.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide the double-station cast tube surface zinc spraying machine which has the advantages of reasonable structural design, wide application range, stable operation and simple operation, and can spray zinc on two cast tubes at one time.

The technical scheme adopted by the invention for solving the problems is as follows: a double-station cast tube surface zinc spraying machine comprises a rack and a zinc spraying trolley, wherein the zinc spraying trolley is arranged on the rack and transversely moves along the rack; the method is characterized in that: the wire feeding device comprises a wire feeding adjusting device, two sets of pushing rotating mechanisms, a cast tube feeding and discharging mechanism and a dust removing device; the wire feeding adjusting device is arranged below the zinc spraying trolley and connected with the zinc spraying trolley, and spray gun assemblies for spraying zinc on the surface of the cast pipe are arranged on two sides of the wire feeding adjusting device; the two sets of pushing and rotating mechanisms are arranged below the rack and used for clamping two casting pipes and driving the casting pipes to rotate, the wire feeding adjusting device is driven by the zinc spraying trolley to transversely move along the axial direction of the casting pipes in the rotating process of the casting pipes, and the spray gun assembly sprays zinc on the surfaces of the casting pipes in the transverse moving process; the cast tube feeding and discharging mechanism is arranged below the rack and used for feeding the cast tubes to the pushing and rotating mechanism and taking the cast tubes subjected to zinc spraying down from the pushing and rotating mechanism; the dust removal device is arranged above the pushing and rotating mechanism and used for treating zinc mist generated in the zinc spraying processing process.

Preferably, the wire feeding adjusting device comprises a wire feeding moving frame, a sliding seat and a riding wheel for the sliding seat; two sides of the wire feeding moving frame are respectively provided with a support frame, the two support frames are symmetrically arranged relative to the axis of the cast pipe, and the support frames are detachably arranged on the wire feeding moving frame through bolts; riding wheels for the sliding seat are arranged on two sides of each supporting frame; similarly, two sliding seats are arranged and supported by riding wheels through the sliding seats, so that the two sliding seats are arranged above the two supporting frames one by one; two spray gun assemblies are arranged on each sliding seat, the sliding seats drive the spray gun assemblies to move transversely under the driving of driving cylinders for the sliding seats, the sliding seats are arranged on the supporting frame and located below the sliding seats, and the end parts of cylinder rods of the sliding seats are connected with the sliding seats.

Preferably, a signaling plate is installed on one side of the sliding seat, a switch plate which works in cooperation with the signaling plate is installed on the wire feeding moving frame, a proximity switch is installed on the switch plate, and when the signaling plate blocks the proximity switch in the transverse moving process of the sliding seat, a spray gun of the spray gun assembly starts to spray zinc.

Preferably, the riding wheel for the sliding seat is mounted through a riding wheel supporting clamping plate, the riding wheel supporting clamping plate is fixedly connected with the supporting frame, a semicircular notch is formed in one side of the riding wheel supporting clamping plate, the riding wheel for the sliding seat is mounted on a riding wheel shaft, one end of the riding wheel shaft is located in the semicircular notch, and a pressing block is used for fixing the riding wheel shaft on the riding wheel supporting clamping plate.

Preferably, two wire guide wheel assemblies are mounted on each sliding seat, and the two wire guide wheel assemblies and the two spray gun assemblies are arranged in a one-to-one correspondence manner; the godet wheel assembly comprises a godet wheel support and two godet wheels arranged on the godet wheel support; the middle upper part of the wire feeding moving frame is also provided with a wire guide wheel assembly and a wire guide pipe.

Preferably, the pushing rotating mechanism comprises two pushing rotating assemblies which are oppositely arranged and used for clamping two ends of the cast tube, wherein one pushing rotating assembly is connected with a rotating driving device to serve as an active pushing rotating assembly; the pushing rotating assembly comprises a main body support, a pushing rotating main shaft, a main shaft supporting sleeve, a guide rod for transverse movement and a driving oil cylinder for transverse movement; the pushing rotating main shaft is arranged in the main shaft supporting sleeve, and one end of the pushing rotating main shaft extends out of the main shaft supporting sleeve and is connected with a tip; the main shaft support sleeve is arranged on the main body support in a manner of being driven by the driving oil cylinder for transverse movement in a transverse moving mode; the main body support is provided with a guide hole for guiding the guide rod for transverse movement; one end of the guide rod for transverse movement is fixedly connected with the main shaft support sleeve, and the other end of the guide rod extends into the guide hole.

Preferably, the rotation driving device adopts a speed reducer for driving the rotation of the pushing main shaft, the speed reducer for driving the rotation of the pushing main shaft is installed at the end part of the main shaft supporting sleeve, and an output shaft of the speed reducer is connected with one end of the pushing rotary main shaft.

Preferably, the main body support is provided with a main shaft support sleeve mounting through hole for mounting the main shaft support sleeve, and a shaft sleeve for reducing friction between the main shaft support sleeve and the main body support is mounted in the main shaft support sleeve mounting through hole.

Preferably, a guide bush is installed in the guide hole.

Preferably, the driving oil cylinders for transverse movement are arranged in two numbers, two oil cylinder mounting holes for respectively mounting the two driving oil cylinders for transverse movement are diagonally arranged on the main body support, and the driving oil cylinders for transverse movement are mounted in the oil cylinder mounting holes.

Preferably, two top discs are fixed on the periphery of the main shaft support sleeve, one top disc corresponds to one driving oil cylinder for transverse movement, and the top discs are connected with the end part of an oil cylinder rod of the driving oil cylinder for transverse movement.

Preferably, one end of the pushing rotating main shaft is provided with a tip seat, and the tip is fixed on the tip seat.

Preferably, the cast tube feeding and discharging mechanism comprises a walking type stepping lifting table and track frames positioned on two sides of the walking type stepping lifting table; the rail frame is obliquely arranged, and a cast pipe to be fed is placed at one end of the rail frame, which is positioned at a high position; the walking type stepping lifting platform comprises a lifting operation platform, the lifting operation platform can perform horizontal transverse movement and up-and-down lifting movement along the arrangement direction of the track frame, through horizontal transverse movement and up-and-down lifting, the lifting operation platform loads the cast pipes to be loaded, which are placed at the end, located at the high position, of the track frame to the pushing rotating mechanism, and loads the cast pipes subjected to zinc spraying processing onto the track frame, and the cast pipes roll along the obliquely installed track frame to be loaded.

Preferably, the track frame is supported and installed by a plurality of track frame supporting I-shaped steel; the end of the track frame, which is positioned at the high position, is sequentially provided with a first V-shaped groove, a second V-shaped groove and a third V-shaped groove from high to low, the first V-shaped groove is provided with a pipe dividing mechanism, and the second V-shaped groove is provided with a pipe shifting mechanism and a centering mechanism; the pipe separating mechanism is used for blocking and placing pipes, the centering mechanism is used for enabling the cast pipes to move axially for centering, and the pipe shifting mechanism is used for shifting the cast pipes after centering to the third V-shaped groove.

Preferably, the pipe dividing mechanism comprises a pipe dividing shifting block and a pipe dividing shifting block driving cylinder, and the pipe dividing shifting block is rotatably arranged on the inner side of the track frame; the pipe dividing shifting block driving cylinder is mounted below the track frame, connected with the pipe dividing shifting block and used for driving the pipe dividing shifting block to rotate, when a cast pipe is arranged at the centering mechanism, the pipe dividing shifting block blocks the cast pipe to prevent the cast pipe from rolling downwards, and when no cast pipe is arranged at the centering mechanism, the pipe dividing shifting block driving cylinder drives the pipe dividing shifting block to rotate to shift the cast pipe to the centering mechanism.

Preferably, the centering mechanism comprises a centering carrier roller, a centering carrier roller driving speed reducer and a centering stop seat; cast tubes are placed on the centering carrier rollers, the centering carrier rollers drive the speed reducer to drive the centering carrier rollers to rotate so as to drive the cast tubes to move axially, the centering in-place blocking seat is arranged on one side of the centering carrier rollers, and a photoelectric switch used for detecting that the centering carrier rollers stop driving the speed reducer to operate after the cast tubes move axially in place is mounted on the centering in-place blocking seat.

Preferably, the walking type stepping lifting table further comprises a lifting table frame base and a lifting table frame base walking track, and the lifting table frame base can horizontally move transversely along the lifting table frame base walking track; the arrangement direction of the track for traveling of the base of the lifting trolley frame is the same as that of the track frame; the lifting operation platform is connected with the lifting trolley frame base and can be installed above the lifting trolley frame base in a vertically lifting mode, and the lowest position where the lifting operation platform can descend is located below the track frame; a plurality of groups of cast tube positioning tools for placing cast tubes and playing a positioning role are arranged on the lifting operation platform;

preferably, the four corners of the base of the lifting trolley frame are provided with traveling wheels, and the traveling wheels are matched with the rails for traveling of the base of the lifting trolley frame.

Preferably, the lifting trolley frame base horizontally moves along the lifting trolley frame base walking track under the driving of the oil cylinder for horizontal movement; two rails for the traveling of the base of the lifting trolley frame are arranged in parallel; the arrangement direction of the oil cylinders for transverse movement is the same as that of the tracks for travelling of the lifting trolley frame base, the oil cylinders for transverse movement and the tracks for travelling of the lifting trolley frame base are arranged between the two tracks for travelling of the lifting trolley frame base, the cylinder body parts of the oil cylinders for transverse movement are fixedly arranged on the oil cylinder fixing seats for transverse movement, the two oil cylinder fixing seats for transverse movement are arranged, and the end parts of oil cylinder rods of the oil cylinders for transverse movement are fixedly connected with one end of the lifting trolley frame base.

Preferably, the lifting operation platform is connected with the lifting trolley frame base through a lifting mechanism for the lifting operation platform; the lifting mechanism for the lifting operation platform comprises a scissor type mechanism and a lifting oil cylinder for the lifting operation platform.

The upper end of the scissor type mechanism is connected with the bottom surface of the lifting operation platform, and the lower end of the scissor type mechanism is connected with the base of the lifting trolley frame; the lifting oil cylinder for the lifting operation platform is obliquely arranged, the bottom of the lifting oil cylinder is hinged to a lifting oil cylinder mounting seat for the lifting operation platform, the lifting oil cylinder mounting seat for the lifting operation platform is fixedly mounted on a lifting platform frame base, and the end part of an oil cylinder rod of the lifting oil cylinder for the lifting operation platform is connected with the scissor type mechanism.

Preferably, the scissor type mechanisms comprise long shafts for the scissor type mechanisms and two groups of lifting arms for the scissor type mechanisms, and the lifting arms for the scissor type mechanisms comprise inner lifting arms and outer lifting arms which are arranged in a scissor type mode; the arrangement direction of the long shaft for the scissor type mechanism is vertical to the arrangement direction of the track for the base of the lifting trolley frame to walk; the two groups of lifting arms for the scissor type mechanisms are respectively arranged at two ends of a long shaft for the scissor type mechanisms; the upper ends of the inner lifting arm and the outer lifting arm are connected with the bottom surface of the lifting operation platform, and the lower ends of the inner lifting arm and the outer lifting arm are connected with the base of the lifting trolley frame.

Preferably, two lifting oil cylinders for the lifting operation platforms are arranged, and the end parts of oil cylinder rods of the two lifting oil cylinders for the lifting operation platforms are connected with the scissor type mechanism through a long shaft; two connecting lug type oil cylinder rod mounting bases are fixedly mounted on the long shaft for the scissor type mechanism, and one connecting lug type oil cylinder rod mounting base corresponds to one lifting oil cylinder for the lifting operation platform; the end part of an oil cylinder rod of the lifting oil cylinder for the lifting operation platform is connected with the connecting lug type oil cylinder rod mounting seat through a pin shaft.

Preferably, the dust removal device comprises a telescopic air pipe, an induced draft fan, a rotary back-blowing flat bag dust remover and a cyclone dust remover; the induced draft fan, the rotary back-blowing flat bag dust remover and the cyclone dust remover are sequentially connected in series through air pipes; the telescopic air pipe comprises an inner air pipe and an outer air pipe which are telescopically sleeved together, and the inner air pipe is partially arranged in the outer air pipe; a first tug wheel assembly is arranged at one end of an inner air pipe arranged in the outer air pipe, a tug wheel in the first tug wheel assembly is contacted with the inner wall of the outer air pipe, and an induced draft cover is arranged at the other end of the inner air pipe and is fixedly connected with a wire feeding adjusting device; install the tow boat subassembly No. two that are used for carrying out the bearing to the tuber pipe in that part that stretches out from outer tuber pipe at the one end of outer tuber pipe, the outer wall contact of tow boat and interior tuber pipe in the tow boat subassembly No. two, connect one section maintenance tuber pipe at the other end of outer tuber pipe, should overhaul the tuber pipe and be connected with cyclone.

Preferably, the first tug wheel assembly and the second tug wheel assembly jointly support the inner air pipe, so that a gap is reserved between the outer wall of the inner air pipe and the inner wall of the outer air pipe; the axis of the inner air pipe is superposed with the axis of the outer air pipe.

Preferably, the first tug wheel assembly and the second tug wheel assembly are respectively provided with two tug wheels; the two first tug wheel assemblies are symmetrically arranged on the longitudinal middle axial plane of the inner air pipe; the two second tug wheel assemblies are symmetrically arranged on the longitudinal middle axial plane of the outer air pipe.

Preferably, the end of the outer air pipe provided with the second tug assembly is provided with a baffle plate for preventing the inner air pipe from completely extending out of the outer air pipe; the baffle is a nylon baffle; a connecting seat for installation is welded below the outer air pipe; the mounting is connected with an air pipe upright post by a connecting seat.

Preferably, a zinc spraying machine working platform is arranged on one side of the frame; the top of the frame is provided with a track for a zinc spraying trolley; the zinc spraying trolley comprises a zinc spraying trolley frame, a zinc spraying trolley driven wheel, a zinc spraying trolley driving wheel and a zinc spraying trolley driving speed reducer are arranged below the zinc spraying trolley frame, and the zinc spraying trolley driving speed reducer drives the zinc spraying trolley driving wheel to rotate; when the zinc spraying trolley is arranged on the frame, the driven wheel of the zinc spraying trolley and the driving wheel of the zinc spraying trolley are assembled on the track for the zinc spraying trolley; a zinc wire barrel and a wire supply frame are arranged on the zinc spraying trolley frame, and zinc wires on the zinc wire barrel are guided into the wire supply adjusting device along the wire supply frame.

Preferably, the input end and the output end of the cast tube feeding and discharging mechanism are both provided with a conveying chain mechanism for conveying cast tubes; the conveying chain mechanism comprises two symmetrically arranged cast pipe conveying chains, and each cast pipe conveying chain comprises a driving chain wheel seat, a driven chain wheel seat, a driving chain wheel, a driven chain wheel and a chain; the driving chain wheel is arranged on the driving chain wheel seat, the driven chain wheel is arranged on the driven chain wheel seat, and the chain is meshed with the driving chain wheel and the driven chain wheel; the method is characterized in that: the chain conveyor also comprises a tensioning screw, an upper chain track and a lower chain track; the upper chain track and the lower chain track are arranged between the driving chain wheel seat and the driven chain wheel seat in an up-and-down mode and used for supporting and guiding the chain; the tensioning screw is arranged on the driven chain wheel seat and used for pushing the driven chain wheel to move transversely so as to tension the chain.

Preferably, the driven chain wheel seat comprises a chain wheel seat front support and a tensioning support, the chain wheel seat front support and the tensioning support are arranged oppositely, the middle parts of the chain wheel seat front support and the tensioning support are connected through two parallel connecting beams, and the tops of the chain wheel seat front support and the tensioning support are connected through two parallel chain protection plates with inverted T-shaped cross sections; the connecting beams correspond to the chain protection plates one to one.

Preferably, the top surface of the connecting beam and the bottom surface of the chain protection plate are both provided with a sliding rail for tensioning; the driven chain wheel is arranged on a driven chain wheel shaft, and two ends of the driven chain wheel shaft are supported and arranged by driven chain wheel bearing seats; the top surface and the bottom surface of driven sprocket bearing frame are the horizontal plane to all set up on top surface and bottom surface with the tensioning with slide rail assorted spout for the tensioning, when installing driven sprocket bearing frame between tie-beam and chain guard plate, the tensioning on the top surface of tie-beam and on the bottom surface of chain guard plate is arranged in the spout for the tensioning on driven sprocket bearing frame top surface and bottom surface with the slide rail.

Preferably, two tensioning screws are arranged and are mounted on the tensioning bracket; one tensioning screw rod corresponds to one driven chain wheel bearing seat, and one end of the tensioning screw rod is connected with the driven chain wheel bearing seat; the tensioning screw is screwed to push the driven chain wheel bearing seat to move transversely along the tensioning sliding rail, and then the chain is tensioned.

Preferably, the upper chain track and the lower chain track are supported and installed by a plurality of track support frames which are sequentially arranged, the upper chain track is installed at the top of the track support frames, and the lower chain track is installed at the lower part of the track support frames.

Preferably, the chain is composed of a plurality of chain links which are hinged in sequence; the chain link comprises a supporting flat plate part, a chain link rotating wheel and a chain link rotating wheel shaft; two chain link rotating wheel shafts are arranged in parallel, meshed with tooth grooves of the driven chain wheel, and both ends of each chain link rotating wheel shaft are provided with chain link rotating wheels; the bearing flat plate part is arranged on two chain link rotating wheel shafts.

Preferably, the upper chain track and the lower chain track support the chain link rotating wheel and guide the chain link rotating wheel; the upper chain track comprises a horizontal section track, and two ends of the horizontal section track are connected with inclined section tracks; the lower chain track is identical in structure to the upper chain track.

Preferably, the driving sprocket is mounted on a driving sprocket shaft, and two ends of the driving sprocket shaft are supported and mounted by driving sprocket bearing seats; the driving chain wheel bearing seat is arranged on the driving chain wheel seat.

Preferably, the driving sprocket is driven by a sprocket-driving reducer; the speed reducer for driving the chain wheel is arranged on one side of the driving chain wheel seat, and the output end of the speed reducer is connected with one end of the driving chain wheel shaft.

Preferably, a torque arm seat is fixedly mounted on one side of the driving sprocket seat, and the bottom of the speed reducer for driving the sprocket is mounted on the torque arm seat.

Compared with the prior art, the invention has the following advantages and effects:

1. the double-station zinc spraying machine can spray zinc to two casting pipes at one time, has the characteristics of wide application range, stable operation, simple operation, good coating quality, high zinc wire utilization rate and the like, and is suitable for the production of the nodular cast iron pipe with the pipe length of 5500 plus 6000 mm;

2. the support frame in the wire feeding adjusting device is detachably arranged on the wire feeding moving frame through a bolt, when the cast iron pipes with different pipe diameters are sprayed with zinc, the mounting position of the spray gun assembly is conveniently adjusted, and the distance from the spray gun to the surface of the pipe is ensured to be an appropriate value;

3. the spray gun assembly in the wire feeding adjusting device is arranged on a sliding seat, the sliding seat is supported by a riding wheel through the sliding seat, the sliding seat is driven by an air cylinder to move transversely, namely the spray gun assembly is driven to move forwards to a zinc spraying position or retreat to a standby position, the air cylinder and the riding wheel are used for realizing the movement of the sliding seat, the structural design is simple, the fault is not easy to occur, the maintenance is basically avoided, and the wire feeding adjusting device is suitable for the condition of severe working environment of a zinc spraying machine;

4. in the wire feeding adjusting device, the moving position of the sliding seat is detected by the proximity switch so as to control the spray gun assembly to start working or stop working, the non-contact detection is adopted, the movement of the sliding seat is not influenced, in addition, the proximity switch has the advantages of fast reaction, positioning preparation and long service life, and certain guarantee is provided for the normal work of the zinc spraying machine;

5. in the pushing and rotating mechanism, the guide rod for transverse movement guides the transverse movement of the main shaft support sleeve, so that the pushing and rotating main shafts are prevented from deviating in the transverse movement process, the pushing and rotating main shafts in the two pushing and rotating assemblies are kept coaxial, and the phenomenon of blocking and stopping when the cast pipe is driven to rotate is avoided; the transverse movement and locking of the main shaft supporting sleeve utilize two driving oil cylinders which are arranged diagonally up and down and used for transverse movement, and the oil cylinders can provide sufficient driving force and locking force;

6. in the cast tube feeding and discharging mechanism, the track frame and the walking type stepping lifting platform work in a matched manner to carry out feeding and discharging, the lifting operation platform is provided with four groups of cast tube positioning tools, the lifting operation platform can be lifted, and the lifting operation platform frame base drives the lifting operation platform to translate, so that the feeding and discharging time is greatly shortened, the continuous zinc spraying processing of the zinc spraying machine is realized, and the working efficiency of the zinc spraying machine is improved;

7. in the cast tube feeding and discharging mechanism, the tube dividing mechanism, the centering mechanism and the tube shifting mechanism are arranged at the end, positioned at the high position, of the track frame, so that the cast tubes are fed in order, safety and reliability are realized, and power energy is saved by virtue of the inclined arrangement of the track frame during cast tube discharging;

8. in the cast tube feeding and discharging mechanism, the lifting of the lifting operation platform and the translation of the lifting trolley frame base are driven by oil cylinders, the driving force is ensured, and the cast tube feeding and discharging mechanism is stable in operation, can lift and translate step by step, has no clamping stagnation phenomenon and has no abnormal impact;

9. in the dust removal device, an inner air pipe moves along with a zinc spraying trolley, and zinc mist can be introduced into a dust remover in time during zinc spraying processing; the rotary back-blowing flat bag dust remover and the cyclone dust remover are connected in series for dust removal, so that the dust removal effect is good; the arrangement of the tug wheel assembly enables the inner air pipe and the outer air pipe to keep the axes coincident, the inner air pipe stretches smoothly, and the interference phenomenon between the inner air pipe and the outer air pipe is avoided; the overhauling air pipe reduces the disassembly and assembly work during overhauling, and is convenient to overhaul;

10. in the conveying chain mechanism, the upper chain track and the lower chain track are arranged to support the chain link rotating wheel and guide the chain link rotating wheel, so that the chain is ensured to run stably and is not easy to loosen under pressure; the driven chain wheel bearing seat can be transversely movably arranged on the driven chain wheel seat, and the driven chain wheel bearing seat can be conveniently pushed to transversely move by adjusting the tensioning screw rod, so that the aim of conveniently tensioning the chain is fulfilled.

Drawings

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

FIG. 1 is a schematic structural view of a zinc sprayer according to an embodiment of the invention.

FIG. 2 is a left side view schematic diagram of a zinc spraying machine according to an embodiment of the invention.

Fig. 3 is a schematic top view of a zinc spraying machine according to an embodiment of the invention.

Fig. 4 is a front view of the rack according to the embodiment of the present invention.

Fig. 5 is a left side view of the rack in the embodiment of the invention.

Fig. 6 is a schematic top view of the rack according to the embodiment of the present invention.

FIG. 7 is a schematic structural diagram of a zinc spraying trolley in the embodiment of the invention.

FIG. 8 is a left side view schematic diagram of the zinc spraying trolley in the embodiment of the invention.

FIG. 9 is a schematic top view of the zinc spraying trolley in the embodiment of the invention.

FIG. 10 is a schematic front view of a wire feeder adjusting device according to an embodiment of the present invention.

FIG. 11 is an enlarged partial schematic view of the right hand side of FIG. 10 at the mounting location of the spray gun assembly.

Fig. 12 is a schematic view of the structure in the direction of a-a in fig. 10.

FIG. 13 is a schematic diagram of a right view of a wire feeder adjusting device according to an embodiment of the present invention.

Fig. 14 is a schematic view of the structure in the direction B in fig. 12 (illustrating the installation of the slider).

Fig. 15 is a schematic sectional view along the direction C-C in fig. 14.

Fig. 16 is a schematic view of a half-section in the direction D of fig. 14.

FIG. 17 is a schematic structural diagram of a supporting pallet of the idler in the embodiment of the invention.

Fig. 18 is a schematic front view of a pushing rotation mechanism in an embodiment of the present invention.

Fig. 19 is a schematic front view of an active push rotating assembly according to an embodiment of the present invention.

Fig. 20 is a front view of the driven ejection rotating assembly in accordance with the embodiment of the present invention.

Fig. 21 is a schematic sectional view of the main body support in the embodiment of the present invention.

Fig. 22 is a plan view (top view) of the cast tube loading and unloading mechanism according to the embodiment of the present invention.

Fig. 23 is a schematic front view of the walking-type step-by-step lifter shown in fig. 1 except for the walking-type step lifter.

Fig. 24 is a front view schematically illustrating a track frame according to an embodiment of the present invention.

FIG. 25 is a schematic diagram of the K-K structure of FIG. 23.

Fig. 26 is a schematic structural view of a centering mechanism in an embodiment of the present invention.

FIG. 27 is a schematic front view of the pipe-dividing shifting block according to the embodiment of the present invention.

FIG. 28 is a left side view of the tube-separating shifting block according to the embodiment of the present invention.

Fig. 29 is a schematic top view of the walking type step lifting platform according to the embodiment of the present invention.

Fig. 30 is a schematic front view of the walking type step-by-step lifting platform in the embodiment of the present invention.

Fig. 31 is a left side view schematic diagram of the walking type stepping lifting table in the embodiment of the invention.

FIG. 32 is a sectional view taken along the direction E-E in FIG. 30 (illustrating the cylinder fixing base for lateral movement).

FIG. 33 is a schematic view showing the connection between the respective parts of the dust removing device in the embodiment of the present invention.

Fig. 34 is a schematic structural diagram of the telescopic air duct mounted on the frame of the zinc spraying machine in the embodiment of the invention.

Fig. 35 is a schematic front view of the telescopic duct in the embodiment of the present invention.

FIG. 36 is a sectional view of FIG. 35 taken along line F-F.

FIG. 37 is a schematic sectional view taken along line G-G in FIG. 35.

FIG. 38 is a schematic sectional view taken along line H-H in FIG. 35.

FIG. 39 is a front view schematically illustrating the construction of a cast pipe conveyor chain according to an embodiment of the present invention.

FIG. 40 is a schematic top view of a cast pipe conveyor chain in an embodiment of the invention.

FIG. 41 is a schematic view of the mounting structure of the drive sprocket of the cast pipe conveyor chain in the embodiment of the present invention.

FIG. 42 is a schematic view of the structure of FIG. 39 from direction I-I.

FIG. 43 is a schematic view of the structure of FIG. 39 taken in the direction J-J.

FIG. 44 is an enlarged partial schematic view of the driven end of the cast pipe conveyor chain in an embodiment of the invention.

FIG. 45 is a front view of the upper chain track of the cast pipe conveyor chain in an embodiment of the present invention.

FIG. 46 is a front view of a chain guard of the cast pipe conveyor chain in an embodiment of the present invention.

FIG. 47 is a left side view schematically illustrating a chain guard of the cast pipe conveyor chain according to an embodiment of the present invention.

Description of reference numerals:

rack a 1; a track A1-1 for a zinc spraying trolley;

zinc spraying trolley A2; a zinc spraying trolley frame 81; driven wheels 82 of the zinc spraying trolley; a zinc-sprayed trolley driving wheel 83; a speed reducer 84 for driving the zinc spraying trolley; a zinc wire barrel 85; a wire supply frame 86;

wire feed adjustment device a 3; a wire feeding moving frame 101; a support frame 102; a slide carriage 103; a riding wheel 104 for a slide; a spray gun assembly 105; a bolt 106; a riding wheel supporting clamping plate 107; a semicircular notch 1071; a idler shaft 108; a compression block 109; a drive cylinder 1010 for the carriage; a switch plate 1011; a proximity switch 1012; a message board 1013; a godet wheel support 1014; a godet wheel 1015; a guidewire tube 1016;

pushing rotary mechanism a 4; a pushing rotation assembly 91; a rotation driving device 92; a main body mount 911; pushing the rotating spindle 912; a main shaft support sleeve 913; a guide bar 914 for lateral movement; a driving cylinder 915 for lateral movement; a tip 916; a bushing 917; a guide bushing 918; a top disk 919; a tip seat 91-10; a guide hole 9111; the main shaft support sleeve is provided with a through hole 9112; a cylinder mounting hole 9113;

a cast tube loading and unloading mechanism A5; a walking type stepping lifting table 1; a track frame 2; a lifting bogie frame base 11; a lifting work platform 12; a rail 13 for traveling of the base of the lifting platform frame; a cast tube positioning tool 14; positioning a tool V-shaped block 141; a traveling wheel 15; a traversing cylinder 16; a cylinder fixing seat 17 for transverse movement; a lifting mechanism 18 for lifting the work platform; a scissor mechanism 181; a lift cylinder 182 for lifting the work platform; the lift cylinder mount 183 for the lift operation platform; long shaft 1811 for scissor mechanism; an inner lift arm 1812; an outer lift arm 1813; a lug-type cylinder rod mounting base 1814; a drag chain 19; a tow chain groove 191; a tow chain bracket 192; the rail frame supports the i-steel 21; a first V-shaped groove 22; a second V-shaped groove 23; a third V-shaped groove 24; a pipe dividing mechanism 25; a pipe dividing shifting block 251; the pipe-dividing shifting block drives the cylinder 252; a pipe-pulling mechanism 26; a centering mechanism 27; a centring idler 271; the idler drive reducer 272; centering in place stop seat 273;

dust removal device a 6; a telescopic air duct 4; an induced draft fan 5; a rotary back-blowing flat bag dust collector 6; a cyclone dust collector 7; a zinc spraying trolley 8; an inner air duct 41; an outer air duct 42; tug assembly number one 43; a second tug assembly 44; a baffle 45; overhauling the air pipe 46; a mounting connecting seat 47; an induced draft hood 48; air duct columns 49;

a zinc sprayer working platform A7;

a conveyor chain mechanism A8; a cast pipe conveyor chain 3; a drive sprocket seat 31; a driven sprocket seat 32; the sprocket seat front bracket 321; a tension bracket 322; a connecting beam 323; chain guard 324; a tension slide 325; a drive sprocket 33; a driven sprocket 34; a chain 35; the links 351; a supporting flat plate portion 3511; link wheels 3512; link pulley shaft 3513; an upper chain track 36; a horizontal segment track 361; the inclined segment rail 362; a lower chain track 37; a tension screw 38; the driven sprocket shaft 39; 3-10 parts of driven sprocket bearing seats; a tension runner 3101; 3-11 of a track support frame; drive sprocket shaft 3-12; 3-13 of a driving sprocket bearing seat; a chain wheel driving speed reducer 3-14; torque arm mounts 3-15.

Detailed Description

The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.

Examples

See fig. 1-47.

The embodiment discloses a double-station cast tube surface zinc spraying machine which comprises a rack A1, a zinc spraying trolley A2, a wire feeding adjusting device A3, two sets of pushing rotating mechanisms A4, a cast tube feeding and discharging mechanism A5, a dust removing device A6, a zinc spraying machine working platform A7 and a conveying chain mechanism A8.

The top of the frame A1 is provided with a track A1-1 for a zinc spraying trolley, and the zinc spraying trolley A2 is arranged on the frame A1 and transversely moves along the track A1-1 for the zinc spraying trolley. The wire feeding adjusting device A3 is arranged below the zinc spraying trolley A2, is connected with the zinc spraying trolley A2, and is provided with a spray gun assembly 105 for spraying zinc on the surface of the casting pipe on two sides. Two sets of pushing and rotating mechanisms A4 are arranged below the rack A1 and are used for clamping two casting pipes and driving the casting pipes to rotate, in the rotating process of the casting pipes, the wire feeding adjusting device A3 is driven by the zinc spraying trolley A2 to transversely move along the axial direction of the casting pipes, and in the transversely moving process, the spray gun assembly 105 sprays zinc on the surfaces of the casting pipes. The cast tube loading and unloading mechanism A5 is arranged below the frame A1 and is used for loading cast tubes to the pushing and rotating mechanism A4 and taking the cast tubes with zinc spraying finished off from the pushing and rotating mechanism A4. The conveying chain mechanism A8 is arranged at the input end and the output end of the cast tube feeding and discharging mechanism A5 and is used for conveying cast tubes. The dust removal device A6 is arranged above the pushing rotary mechanism A4 and is used for treating zinc mist generated in the zinc spraying processing process. The zinc spraying machine working platform A7 is arranged on one side of the frame A1, and a worker can climb on the zinc spraying machine working platform A7 to overhaul the zinc spraying trolley A2.

In this embodiment, specifically, referring to fig. 7 to 9, the zinc spray cart a2 includes a zinc spray cart frame 81, a zinc spray cart driven wheel 82, a zinc spray cart driving wheel 83, and a zinc spray cart driving speed reducer 84 are mounted on the lower surface of the zinc spray cart frame 81, and the zinc spray cart driving wheel 83 is driven to rotate by the zinc spray cart driving speed reducer 84. When the zinc spraying trolley A2 is installed on the frame A1, the driven wheel 82 and the driving wheel 83 of the zinc spraying trolley are assembled on the track A1-1 for the zinc spraying trolley. The zinc wire barrel 85 and the wire supply frame 86 are arranged on the zinc spraying trolley frame 81, and the zinc wires on the zinc wire barrel 85 are guided into the wire supply adjusting device A3 along the wire supply frame 86.

In this embodiment, referring to fig. 10 to 17, the wire feed adjusting device a3 includes a wire feed moving carriage 101, a carriage 103, and a carriage idler 104. The wire feeding moving frame 101 is provided with support frames 102 on both sides thereof, the two support frames 102 are symmetrically arranged about the axis of the cast pipe, and the support frames 102 are detachably mounted on the wire feeding moving frame 101 by bolts 106. Riding wheels 104 for sliding seats are arranged on two sides of each supporting frame 102; the riding wheel 104 for the sliding seat is arranged on the supporting frame 102 through a riding wheel supporting clamping plate 107; specifically, the supporting pallet 107 is fixedly connected to the supporting frame 102, a semicircular notch 1071 is formed in one side of the supporting pallet 107, the slide is mounted on the supporting pallet shaft 108 by the supporting pallet 104, one end of the supporting pallet shaft 108 is located in the semicircular notch 1071, and the supporting pallet shaft 108 is fixed on the supporting pallet 107 by a pressing block 109.

Similarly, two slide seats 103 are provided, and are supported by the riding wheels 104 through the slide seats, so as to be arranged above the two support frames 102 one by one; two spray gun assemblies 105 and two guide wheel assemblies are arranged on each sliding seat 103, and the two guide wheel assemblies are arranged in one-to-one correspondence with the two spray gun assemblies 105. The godet wheel assembly includes a godet wheel support 1014 and two godet wheels 1015 mounted on the godet wheel support 1014; the middle upper position of the wire feeding moving frame 101 is also provided with a wire guide wheel assembly and a wire guide pipe 1016.

In this embodiment, the slide carriage 103 drives the spray gun assembly 105 to move transversely under the driving of the slide carriage driving cylinder 1010, the slide carriage driving cylinder 1010 is mounted on the supporting frame 102 and located below the slide carriage 103, and the end of the cylinder rod is connected to the slide carriage 103.

In this embodiment, a signaling board 1013 is installed on one side of the slide carriage 103, a switch board 1011 cooperating with the signaling board 1013 is installed on the wire feeding moving frame 101, a proximity switch 1012 is installed on the switch board 1011, and when the signaling board 1013 blocks the proximity switch 1012 during the lateral movement of the slide carriage 103, the spray gun of the spray gun assembly 105 starts to spray zinc. The proximity switch 1012 is used for detecting the moving position of the sliding seat 103 so as to control the spray gun assembly 105 to start working, the non-contact mode is adopted for detection, the movement of the sliding seat 105 is not influenced, in addition, the proximity switch is fast in reaction, positioning preparation and long in service life, and certain guarantee is provided for the normal work of the zinc spraying machine.

In this embodiment, the supporting frame 102 is detachably mounted on the wire feeding moving frame 101 through bolts, so that when zinc spraying is performed on cast iron pipes with different pipe diameters, the mounting position of the spray gun assembly 105 is conveniently adjusted, and the distance from the spray gun to the surface of the pipe is ensured to be an appropriate value; the spray gun assembly 105 is installed on the sliding seat 103, the sliding seat 103 is supported by the riding wheel 104 for the sliding seat, the sliding seat is driven to move transversely by the air cylinder, namely, the spray gun assembly 105 is driven to move forwards to a zinc spraying position or retreat to a standby position, the air cylinder and the riding wheel are used for realizing the movement of the sliding seat, the structure design is simple, the fault is not easy to occur, the maintenance is basically avoided, and the spray gun assembly is suitable for the severe condition of the working environment of a zinc spraying machine.

In this embodiment, referring to fig. 18 to 21, each set of pushing and rotating mechanism a4 includes two pushing and rotating assemblies 91 disposed oppositely for clamping two ends of a cast tube, wherein one of the pushing and rotating assemblies 91 is connected to a rotating driving device 92 as a driving pushing and rotating assembly, as shown in fig. 18, the pushing and rotating assembly 91 located on the right side is a driving pushing and rotating assembly, and the pushing and rotating assembly 91 located on the left side is a driven pushing and rotating assembly.

In this embodiment, the pushing rotation assembly 91 includes a main body support 911, a pushing rotation spindle 912, a spindle support sleeve 913, a guide rod 914 for lateral movement, and a driving cylinder 915 for lateral movement. A main shaft supporting sleeve mounting through hole 9112 is formed in the middle of the main body support 911, a guide hole 9111 is formed in the upper portion of the main body support, and two oil cylinder mounting holes 9113 are formed in the upper portion and the lower portion of the main body support.

In this embodiment, the spindle supporting sleeve 913 is a hollow cylinder and is installed in the spindle supporting sleeve mounting hole 9112, and thus the spindle sleeve 917 is installed in the spindle supporting sleeve mounting hole 9112 in order to reduce friction between the spindle supporting sleeve 913 and the main body support 911.

In this embodiment, the pushing rotating spindle 912 is rotatably mounted in the spindle supporting sleeve 913 through a bearing, and one end of the pushing rotating spindle 912 protrudes from the spindle supporting sleeve 913 and is connected with a tip 916, specifically, the tip 916 is mounted on a tip seat 91-10, and the tip seat 91-10 is fixed on the end of the pushing rotating spindle 912. If the pushing rotation main shaft 912 is used as an active pushing rotation main shaft, the other end thereof is connected to a rotation driving device 92, and the rotation driving device 92 employs a pushing main shaft rotation driving reduction gear attached to the end of the main shaft support sleeve 913.

In this embodiment, two driving cylinders 915 for lateral movement are provided, and are respectively mounted in two cylinder mounting holes 9113 of the two main body supports 911. Two top disks 919 are fixed on the outer periphery of the main shaft support sleeve 913, one top disk 919 corresponds to one driving cylinder 915 for transverse movement, and the top disks 919 are connected with the end part of a cylinder rod of the driving cylinder 915 for transverse movement. The spindle support sleeve 913 moves laterally by the driving cylinder 915 for lateral movement.

In this embodiment, one end of the guide rod 914 for lateral movement is fixedly connected to the spindle support sleeve 913, the other end thereof extends into the guide hole 9111, and the guide bush 918 is installed in the guide hole 9111. The guide rod 914 for transverse movement guides the transverse movement of the main shaft support sleeve 913, and ensures that the pushing rotating main shafts 912 do not deviate in the transverse movement process, so that the pushing rotating main shafts 912 in the two pushing rotating assemblies 91 are coaxial, and the blocking phenomenon during the driving of the cast tube to rotate is avoided.

In the specific use of this embodiment, the two pushing rotating assemblies 91 are arranged in a manner that the apexes 916 are opposite to each other, and the pushing rotating spindle 912 in one of the pushing rotating assemblies 91 is connected to a speed reducer for driving the rotation of the pushing spindle, and serves as an active pushing rotating assembly; under the drive of the respective driving oil cylinders 915 for transverse movement, the two main shaft supporting sleeves 913 transversely move face to clamp two ends of the cast pipe, after the cast pipe is clamped, the driving oil cylinders 915 for transverse movement are used for locking, then the speed reducer for main shaft rotation driving is pushed to work, the cast pipe is driven to rotate, and then the zinc spraying trolley A2 is started to drive the wire feeding adjusting device A3 to move along the axial direction of the cast pipe for zinc spraying processing.

In this embodiment, referring to fig. 22 to 32, the cast tube loading and unloading mechanism a5 includes a walking type stepping lifting table 1 and track frames 2 located at two sides of the walking type stepping lifting table 1. Track frame 2 is the slope installation, treats that the material loading cast tube is placed in track frame 2 and is located that one end of eminence, and unloading is realized in walking step-by-step elevating platform 1 and the cooperation work of track frame 2.

In the embodiment, the track frame 2 is supported and installed by a plurality of track frame supporting i-beams 21; the end of the track frame 2, which is positioned at the high position, is sequentially provided with a first V-shaped groove 22, a second V-shaped groove 23 and a third V-shaped groove 24 from high to low, a pipe distributing mechanism 25 is arranged at the first V-shaped groove 22, and a pipe shifting mechanism 26 and a centering mechanism 27 are arranged at the second V-shaped groove 23; the pipe separating mechanism 25 is used for stopping and placing pipes, the centering mechanism 27 is used for centering the cast pipes in an axial direction, and the pipe shifting mechanism 26 is used for shifting the centered cast pipes into the third V-shaped groove 24.

In this embodiment, the tube dividing mechanism 25 includes a tube dividing shifting block 251 and a tube dividing shifting block driving cylinder 252, and the tube dividing shifting block 251 is rotatably installed inside the track frame 2; the tube dividing shifting block driving cylinder 252 is installed below the track frame 2, is connected with the tube dividing shifting block 251, and is used for driving the tube dividing shifting block 251 to rotate, when a cast tube is located at the centering mechanism 27, the tube dividing shifting block 251 blocks the cast tube to prevent the cast tube from rolling downwards, and when no cast tube is located at the centering mechanism 27, the tube dividing shifting block driving cylinder 252 drives the tube dividing shifting block 251 to rotate to shift the cast tube to the centering mechanism 27.

In this embodiment, the centering mechanism 27 includes a centering roller 271, a centering roller drive reducer 272, and a centering stop seat 273; cast tubes are placed on the centering carrier rollers 271, the centering carrier rollers drive the speed reducer 272 to drive the centering carrier rollers 271 to rotate, so that the cast tubes are driven to move axially, the centering in-place stop seat 273 is arranged on one side of the centering carrier rollers 271, and a photoelectric switch used for detecting that the centering carrier rollers drive the speed reducer 272 to run after the cast tubes move axially in place is mounted on the centering in-place stop seat 273.

In this embodiment, the walking type stepping elevating platform 1 includes an elevating platform frame base 11, an elevating work platform 12, and an elevating platform frame base walking rail 13. The lifting operation platform 12 is arranged above the lifting trolley frame base 11 and is connected with the lifting operation platform through a lifting mechanism 18; the elevating work platform 12 is capable of being elevated up and down by the elevating mechanism 18 for elevating work platform. Traveling wheels 15 are installed at four corners of the lifting trolley frame base 11, and the traveling wheels 15 are matched with the lifting trolley frame base traveling rails 13, so that the lifting trolley frame base 11 can horizontally move along the lifting trolley frame base traveling rails 13. The arrangement direction of the track 13 for the base walking of the lifting trolley frame is the same as that of the track frame 2; four groups of cast tube positioning tools 14 for placing cast tubes and playing a positioning role are installed on the lifting operation platform 12, and each group of cast tube positioning tools 14 comprises two positioning tool V-shaped blocks 141.

In this embodiment, the lifting mechanism 18 for the lifting work platform includes a scissor mechanism 181 and a lifting cylinder 182 for the lifting work platform. The upper end of the scissor type mechanism 181 is connected with the bottom surface of the lifting operation platform 12, and the lower end of the scissor type mechanism 181 is connected with the lifting trolley frame base 11. The lifting oil cylinder 182 for the lifting operation platform is obliquely arranged, the bottom of the lifting oil cylinder 182 is hinged on a lifting oil cylinder mounting seat 183 for the lifting operation platform, the lifting oil cylinder mounting seat 183 for the lifting operation platform is fixedly arranged on the lifting platform frame base 11, and the end part of an oil cylinder rod of the lifting oil cylinder 182 for the lifting operation platform is connected with the scissor type mechanism 181.

Specifically, scissor mechanism 181 includes a long shaft 1811 for the scissor mechanism and two sets of lifting arms for the scissor mechanism, including an inner lifting arm 1812 and an outer lifting arm 1813 in a scissor arrangement. The arrangement direction of the long shaft 1811 for the scissor mechanism is perpendicular to the arrangement direction of the rails 13 for the chassis base of the lifting platform frame. Two groups of lifting arms for the scissor type mechanisms are respectively arranged at two ends of a long shaft 1811 for the scissor type mechanisms; the upper ends of the inner lifting arm 1812 and the outer lifting arm 1813 are connected with the bottom surface of the lifting work platform 12, and the lower ends of the inner lifting arm 1812 and the outer lifting arm 1813 are connected with the lifting trolley frame base 11. Two lift cylinders 182 for lift work platform are provided, and the end of the cylinder rod of the two lift cylinders 182 for lift work platform is connected to the long shaft 1811 for scissor mechanism.

Two connecting lug type oil cylinder rod mounting seats 1814 are fixedly mounted on the long shaft 1811 for the scissor type mechanism, and one connecting lug type oil cylinder rod mounting seat 1814 corresponds to one lifting oil cylinder 182 for the lifting operation platform; the end of the cylinder rod of the lift cylinder 182 for the lift platform is connected to the connecting lug-type cylinder rod mounting base 1814 by a pin.

In this embodiment, the lifting carriage frame base 11 is driven by the traversing cylinder 16 to traverse horizontally along the lifting carriage frame base traveling rail 13; two rails 13 for traveling of the base of the lifting platform frame are arranged in parallel with each other; the arrangement direction of the oil cylinder 16 for transverse movement is the same as that of the rails 13 for base walking of the lifting trolley frame, and the oil cylinder 16 for transverse movement is arranged between the two rails 13 for base walking of the lifting trolley frame, wherein the cylinder body part of the oil cylinder 16 for transverse movement is fixedly arranged on an oil cylinder fixing seat 17 for transverse movement, two oil cylinder fixing seats 17 for transverse movement are arranged, and the end part of an oil cylinder rod of the oil cylinder 16 for transverse movement is fixedly connected with one end of the base 11 of the lifting trolley frame.

In this embodiment, four sets of cast pipe positioning tools 14 are installed on the lifting platform 12, and one side of the rail 13 for traveling of the base of the lifting platform frame is provided with a tow chain groove 191 and a tow chain 19 for protecting an oil pipe for supplying and returning oil to the lifting oil cylinder 182 for the lifting platform and the oil cylinder 16 for the transverse movement; the drag chain 19 can be placed in the drag chain groove 191, and one end of the drag chain 19 is fixed in the drag chain groove 191, and the other end of the drag chain 19 is fixed on the lifting bogie frame base 11. A tow chain bracket 192 is fixedly installed at one side of the lifting trolley frame base 11, and the tow chain bracket 192 is connected with the tow chain 19.

In this embodiment, the lifting operation platform 12 and the translation of the lifting trolley frame base 11 are driven by oil cylinders, the driving force is guaranteed, and the operation is stable, the stepping lifting and translation are realized, the clamping stagnation phenomenon is avoided, and abnormal impact is avoided.

The concrete working process of the cast tube loading and unloading mechanism A5 in this embodiment is as follows:

firstly, a centering mechanism 27 performs centering treatment on cast pipes, the centered cast pipes are placed in a third V-shaped groove 24, a lifting operation platform 12 descends to the lowest position, a lifting trolley frame base drives the lifting operation platform 12 to translate leftwards to a material taking position, and at the material taking position, the centering mechanism 27 and the third V-shaped groove 24 respectively face two groups of left cast pipe positioning tools 14 on the lifting operation platform 12 one by one;

then the lifting operation platform 12 rises, and in the rising process, the cast pipes are pushed and lifted, so that the cast pipes at the positions of the centering mechanism 27 and the third V-shaped groove 24 are transferred to the two left groups of cast pipe positioning tools 14 on the lifting operation platform 12, then the lifting platform frame base 11 drives the lifting operation platform 12 to move right to a zinc spraying station of the zinc spraying machine, at the moment, the lifting operation platform 12 rises once again by a distance to the zinc spraying station, and two sets of pushing and rotating mechanisms A4 of the zinc spraying machine clamp two cast pipes for zinc spraying processing;

in the process of zinc spraying processing, the walking type stepping lifting platform 1 removes two casting pipes again and places the two casting pipes on the two groups of casting pipe positioning tools 14 on the left side;

after the two cast pipes undergoing zinc spraying processing are subjected to zinc spraying, the walking type stepping lifting platform 1 moves to a zinc spraying station, then the two cast pipes undergoing zinc spraying processing are discharged onto the two sets of cast pipe positioning tools 14 on the right side of the lifting operation platform 12, then the two cast pipes on the two sets of cast pipe positioning tools 14 on the left side are fed to the two sets of pushing and rotating mechanisms A4 of the zinc spraying machine, and zinc spraying processing is continued;

and then, in the process of descending and re-taking materials, the lifting operation platform 12 transfers two cast pipes on which zinc spraying processing is finished to the track frame 2, and the cast pipes roll downwards along the track frame 2 which is arranged obliquely to carry out blanking and sequentially work in a circulating mode.

In this embodiment, referring to fig. 33 to 38, the dust removing device a6 includes a telescopic air duct 4, an induced draft fan 5, a rotary blowback flat bag dust remover 6, and a cyclone dust remover 7. The induced draft fan 5, the rotary back-blowing flat bag dust remover 6 and the cyclone dust remover 7 are connected in series in sequence through air pipes. The rotary back-blowing flat bag dust remover 6 and the cyclone dust remover 7 are connected in series for dust removal, the dust removal effect is good, and the specific structures of the rotary back-blowing flat bag dust remover 6 and the cyclone dust remover 7 can refer to the prior art.

In this embodiment, the telescopic air duct 4 includes an inner air duct 41 and an outer air duct 42 telescopically sleeved together, and the inner air duct 41 is partially disposed in the outer air duct 42. A second tug assembly 44 for supporting the part of the inner air pipe 41 extending out of the outer air pipe 42 is installed at one end of the outer air pipe 42, a tug in the second tug assembly 44 is in contact with the outer wall of the inner air pipe 41, and a section of maintenance air pipe 46 is connected to the other end of the outer air pipe 42.

In this embodiment, overhaul tuber pipe 46 and be connected with cyclone 7, when flexible tuber pipe 4 need overhaul, can pull down overhaul tuber pipe 46 from outer tuber pipe 42, need not dismouting cyclone 7, the dismouting is convenient, the convenient maintenance.

In this embodiment, a first tug assembly 43 is installed at one end of the inner air pipe 41 inside the outer air pipe 42, a tug in the first tug assembly 43 is in contact with the inner wall of the outer air pipe 42, an induced draft cover 48 is installed at the other end of the inner air pipe 41, and the induced draft cover 48 is fixedly connected with a wire feeding adjusting device a 3; the movement of the wire feed adjusting device A3 drives the inner air pipe 41 to extend or retract from the outer air pipe 42, so that the zinc mist can be introduced into the cyclone dust collector 7 in time.

In this embodiment, the two first tug assemblies 43 are symmetrically arranged about the longitudinal central axis of the inner air duct 41, and the included angle between the two first tug assemblies 43 is 60 °. Two tug assemblies 44 are also arranged; the two second tug assemblies 44 are arranged plane-symmetrically about the longitudinal central axis of the outer air duct 42, and the angle between the two second tug assemblies 44 is also 60 °.

In this embodiment, the first tug wheel assembly 43 and the second tug wheel assembly 44 jointly support the inner air pipe 41, so that a gap is reserved between the outer wall of the inner air pipe 41 and the inner wall of the outer air pipe 42, and the axis of the inner air pipe 41 and the axis of the outer air pipe 42 are overlapped, thereby ensuring smooth operation of the inner air pipe 41 and avoiding friction of the inner air pipe 41 on the outer air pipe 42.

In this embodiment, a baffle 45 is installed at the end of the outer air duct 42 where the tug wheel assembly 44 is installed, and the baffle 45 is used to prevent the inner air duct 41 from completely protruding from the outer air duct 42. The baffle 45 is a nylon baffle, and the nylon baffle has a certain buffering capacity, so that when the inner air pipe 41 hits the nylon baffle, serious impact is not generated.

In this embodiment, a mounting coupling seat 47 is welded to the lower surface of the external air duct 42, and the external air duct 42 can be mounted on an air duct column 49 via the mounting coupling seat 47. The air duct column 49 supports the outer air duct 42, and the upper surface of the outer air duct 42 is connected with a rack A1 of the zinc spraying machine.

In this embodiment, referring to fig. 39 to 47, the conveying chain mechanism A8 includes two symmetrically disposed cast pipe conveying chains 3, and the cast pipe conveying chains 3 include a driving sprocket seat 31, a driven sprocket seat 32, a driving sprocket 33, a driven sprocket 34, a chain 35, a tension screw 38, an upper chain rail 36 and a lower chain rail 37.

In this embodiment, the driving sprocket 33 is mounted on one driving sprocket shaft 3-12, and both ends of the driving sprocket shaft 3-12 are supported and mounted by the driving sprocket bearing seats 3-13; the drive sprocket bearing blocks 3-13 are mounted on the drive sprocket seat 31. The driving sprocket 33 is driven by the sprocket drive reducer 3-14; one side of the driving chain wheel seat 31 is fixedly provided with a torque arm seat 3-15, and the bottom of the speed reducer 3-14 for chain wheel driving is arranged on the torque arm seat 3-15. The output ends of the chain drive reducers 3 to 14 are connected to one ends of the drive chain shafts 3 to 12.

In this embodiment, the driven sprocket 32 includes a sprocket front support 321 and a tension support 322, the sprocket front support 321 and the tension support 322 are disposed oppositely, the middle portions of the two are connected by two parallel connecting beams 323, and the top portions of the two are connected by two parallel chain protection plates 324 with inverted T-shaped cross sections. Connecting beam 323 and chain guard plate 324 correspond one-to-one.

In this embodiment, the top surface of the connecting beam 323 and the bottom surface of the chain guard plate 324 are both provided with a slide rail 325 for tensioning; the driven sprocket 34 is mounted on a driven sprocket shaft 39, and the driven sprocket shaft 39 is supported at both ends by the driven sprocket bearing blocks 3 to 10. The top surface and the bottom surface of the driven sprocket bearing seat 3-10 are horizontal surfaces, tensioning sliding grooves 3101 matched with the tensioning sliding rails 325 are formed in the top surface and the bottom surface, and when the driven sprocket bearing seat 3-10 is installed between the connecting beam 323 and the chain protection plate 324, the tensioning sliding rails 325 on the top surface of the connecting beam 323 and the bottom surface of the chain protection plate 324 are placed in the tensioning sliding grooves 3101 on the top surface and the bottom surface of the driven sprocket bearing seat 3-10.

In this embodiment, two tensioning screws 38 are provided and are mounted on the tensioning bracket 322; one tensioning screw 38 corresponds to one driven sprocket bearing seat 3-10, and one end of the tensioning screw 38 is connected with the driven sprocket bearing seat 3-10; the chain 35 is tensioned by screwing the tensioning screw 38 to push the driven sprocket bearing blocks 3-10 to traverse along the tensioning slide 325.

In this embodiment, the chain 35 meshes with the drive sprocket 33 and the driven sprocket 34. Upper chain track 36 and lower chain track 37 are disposed up and down between drive sprocket seat 31 and driven sprocket seat 32 for supporting and guiding chain 35.

In this embodiment, the chain 35 is composed of a plurality of links 351 hinged in sequence; link 351 includes a bearing plate portion 3511, a link runner 3512, and a link runner axle 3513. Two chain link rotating wheel shafts 3513 are arranged in parallel, meshed with tooth grooves of the driven chain wheel 34, and both ends of each chain link rotating wheel shaft 3512 are provided with chain link rotating wheels; the support plate portion 3511 is mounted on two link tumbler shafts 3513. The upper chain track 36 and the lower chain track 37 support the link pulley 3512 and guide the link pulley 3512.

In this embodiment, the upper chain rail 36 and the lower chain rail 37 are supported and mounted by a plurality of rail support frames 3-11 arranged in sequence, the upper chain rail 36 is mounted on the top of the rail support frames 3-11, and the lower chain rail 37 is mounted on the lower portion of the rail support frames 3-11. The lower chain track 37 is of the same construction as the upper chain track 36. Go up chain track 36 and include horizontal segment track 361, inclined section track 362 is all connected at horizontal segment track 361 both ends, and inclined section track 362 sets up the gyration that makes things convenient for chain 35, can not take place to interfere to link 351.

In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an illustration of the structure of the present invention. All equivalent or simple changes in the structure, characteristics and principles of the invention are included in the protection scope of the patent. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. A double-station cast tube surface zinc spraying machine comprises a rack (A1) and a zinc spraying trolley (A2), wherein the zinc spraying trolley (A2) is installed on the rack (A1) and moves transversely along the rack (A1); the method is characterized in that: the automatic feeding device also comprises a wire feeding adjusting device (A3), two sets of pushing and rotating mechanisms (A4) and a cast tube loading and unloading mechanism (A5); the wire feeding adjusting device (A3) is arranged below the zinc spraying trolley (A2), is connected with the zinc spraying trolley (A2), and is provided with a spray gun assembly (105) for spraying zinc on the surface of the cast tube on two sides; the two sets of pushing and rotating mechanisms (A4) are arranged below the rack (A1) and are used for clamping two casting pipes and driving the casting pipes to rotate, in the rotating process of the casting pipes, the wire feeding adjusting device (A3) is driven by the zinc spraying trolley (A2) to transversely move along the axial direction of the casting pipes, and in the transversely moving process, the spray gun assembly (105) sprays zinc on the surfaces of the casting pipes; the cast tube feeding and discharging mechanism (A5) is arranged below the rack (A1) and is used for feeding cast tubes to the pushing and rotating mechanism (A4) and taking the cast tubes subjected to zinc spraying from the pushing and rotating mechanism (A4), and the cast tube feeding and discharging mechanism (A5) comprises a walking type stepping lifting platform (1) and track frames (2) positioned on two sides of the walking type stepping lifting platform (1); the track frame (2) is obliquely arranged, and a cast pipe to be fed is placed at one end of the track frame (2) at a high position; the walking type stepping lifting platform (1) comprises a lifting operation platform (12), the lifting operation platform (12) can perform horizontal transverse movement and vertical lifting movement along the arrangement direction of the track frame (2), through horizontal transverse movement and vertical lifting, the lifting operation platform (12) loads a cast pipe to be loaded, which is placed at the end, located at the high position, of the track frame (2), to a pushing rotating mechanism (A4), and loads the cast pipe subjected to zinc spraying processing onto the track frame (2), and the cast pipe rolls along the track frame (2) which is installed obliquely; the wire feeding adjusting device (A3) comprises a wire feeding moving frame (101), a sliding seat (103) and a riding wheel (104) for the sliding seat; two sides of the wire feeding moving frame (101) are respectively provided with a support frame (102), the two support frames (102) are symmetrically arranged around the axis of the cast pipe, and the support frames (102) are detachably arranged on the wire feeding moving frame (101) through bolts (106); riding wheels (104) for sliding seats are arranged on two sides of each supporting frame (102); similarly, two sliding seats (103) are arranged and supported by the riding wheels (104) through the sliding seats, so that the two sliding seats are arranged above the two supporting frames (102) one by one; two spray gun assemblies (105) are mounted on each sliding seat (103), the sliding seats (103) drive the spray gun assemblies (105) to move transversely under the driving of driving cylinders (1010) for the sliding seats, the sliding seats are mounted on the supporting frame (102) by the driving cylinders (1010) and located below the sliding seats (103), and the end parts of cylinder rods of the sliding seats are connected with the sliding seats (103).

2. The double-station cast tube surface zinc spraying machine according to claim 1, characterized in that: the zinc spraying machine also comprises a dust removal device (A6), a conveying chain mechanism (A8) and a zinc spraying machine working platform (A7); the dust removal device (A6) is arranged above the pushing rotary mechanism (A4) and is used for treating zinc mist generated in the zinc spraying processing process; the zinc spraying machine working platform (A7) is arranged on one side of the frame (A1); the conveying chain mechanism (A8) is used for conveying the casting tubes and is arranged at the input end and the output end of the casting tube loading and unloading mechanism (A5).

3. The double-station cast tube surface zinc spraying machine according to claim 1, characterized in that: one side of the sliding seat (103) is provided with a signaling plate (1013), the wire feeding moving frame (101) is provided with a switch plate (1011) which is matched with the signaling plate (1013) to work, the switch plate (1011) is provided with a proximity switch (1012), and when the signaling plate (1013) blocks the proximity switch (1012) in the transverse moving process of the sliding seat (103), a spray gun of the spray gun assembly (105) starts to spray zinc.

4. The double-station cast tube surface zinc spraying machine according to claim 1, characterized in that: the pushing rotating mechanism (A4) comprises two pushing rotating assemblies (91) which are oppositely arranged and used for clamping two ends of the cast tube, wherein one pushing rotating assembly (91) is connected with a rotating driving device (92) as an active pushing rotating assembly; the pushing rotating assembly (91) comprises a main body support (911), a pushing rotating main shaft (912), a main shaft support sleeve (913), a guide rod (914) for transverse movement and a driving oil cylinder (915) for transverse movement; the pushing rotating main shaft (912) is arranged in a main shaft supporting sleeve (913), and one end of the pushing rotating main shaft (912) extends out of the main shaft supporting sleeve (913) and is connected with a tip (916); the main shaft supporting sleeve (913) is arranged on the main body support (911) in a way of being capable of moving transversely under the driving of a driving oil cylinder (915) for moving transversely; the main body support (911) is provided with a guide hole (9111) for guiding a guide rod (914) for transverse movement; one end of the guide rod (914) for transverse movement is fixedly connected with the main shaft support sleeve (913), and the other end of the guide rod extends into the guide hole (9111).

5. The double-station cast tube surface zinc spraying machine according to claim 1, characterized in that: the track frame (2) is supported and installed by a plurality of track frame supporting I-shaped steel (21); one end of the track frame (2) at the high position is sequentially provided with a first V-shaped groove (22), a second V-shaped groove (23) and a third V-shaped groove (24) from high to low, a pipe distributing mechanism (25) is arranged at the first V-shaped groove (22), and a pipe shifting mechanism (26) and a centering mechanism (27) are arranged at the second V-shaped groove (23); the pipe separating mechanism (25) is used for blocking and placing pipes, the centering mechanism (27) is used for enabling the cast pipes to move axially for centering, and the pipe shifting mechanism (26) is used for shifting the centered cast pipes into the third V-shaped groove (24).

6. The double-station cast tube surface zinc spraying machine according to claim 1, characterized in that: the walking type stepping lifting platform (1) further comprises a lifting platform frame base (11) and a lifting platform frame base walking track (13), wherein the lifting platform frame base (11) can horizontally move transversely along the lifting platform frame base walking track (13); the arrangement direction of the track (13) for the base walking of the lifting trolley frame is the same as the arrangement direction of the track frame (2); the lifting operation platform (12) is connected with the lifting trolley frame base (11) and can be installed above the lifting trolley frame base (11) in a vertically lifting mode, and the lowest position where the lifting operation platform (12) can descend is located below the track frame (2); a plurality of groups of cast tube positioning tools (14) for placing and positioning cast tubes are arranged on the lifting operation platform (12); traveling wheels (15) are arranged at four corners of the lifting trolley frame base (11), and the traveling wheels (15) are matched with a rail (13) for traveling of the lifting trolley frame base;

and/or; the lifting trolley frame base (11) is driven by a traversing oil cylinder (16) to horizontally traverse along a track (13) for the traveling of the lifting trolley frame base; two rails (13) for walking of the base of the lifting trolley frame are arranged in parallel; the arrangement directions of the oil cylinders (16) for transverse movement and the rails (13) for traveling of the base of the lifting trolley frame are the same, the oil cylinders are arranged between the two rails (13) for traveling of the base of the lifting trolley frame, the cylinder body parts of the oil cylinders (16) for transverse movement are fixedly arranged on oil cylinder fixing seats (17) for transverse movement, the number of the oil cylinder fixing seats (17) for transverse movement is two, and the end parts of oil cylinder rods of the oil cylinders (16) for transverse movement are fixedly connected with one end of the base (11) of the lifting trolley frame.

7. The double-station cast tube surface zinc spraying machine according to claim 2, characterized in that: the dust removal device (A6) comprises a telescopic air pipe (4), an induced draft fan (5), a rotary back-blowing flat bag dust remover (6) and a cyclone dust remover (7); the induced draft fan (5), the rotary back-blowing flat bag dust remover (6) and the cyclone dust remover (7) are sequentially connected in series through air pipes; the telescopic air pipe (4) comprises an inner air pipe (41) and an outer air pipe (42) which are telescopically sleeved together, and the inner air pipe (41) is partially arranged in the outer air pipe (42); a first tug wheel assembly (43) is arranged at one end of an inner air pipe (41) arranged in the outer air pipe (42), a tug wheel in the first tug wheel assembly (43) is in contact with the inner wall of the outer air pipe (42), an induced draft cover (48) is arranged at the other end of the inner air pipe (41), and the induced draft cover (48) is fixedly connected with a wire feeding adjusting device (A3); a tug assembly (44) for supporting the internal air pipe (41) extending out of the external air pipe (42) is mounted at one end of the external air pipe (42), a tug in the tug assembly (44) is in contact with the outer wall of the internal air pipe (41), a section of maintenance air pipe (46) is connected to the other end of the external air pipe (42), and the maintenance air pipe (46) is connected with the cyclone dust collector (7).

8. The double-station cast tube surface zinc spraying machine according to claim 7, characterized in that: the first tug wheel assembly (43) and the second tug wheel assembly (44) jointly support the inner air pipe (41), so that a gap is reserved between the outer wall of the inner air pipe (41) and the inner wall of the outer air pipe (42); the axial line of the inner air pipe (41) is superposed with the axial line of the outer air pipe (42); the first tug wheel assembly (43) and the second tug wheel assembly (44) are respectively provided with two tug wheels; the two first tug wheel assemblies (43) are symmetrically arranged on the longitudinal middle axial plane of the inner air pipe (41); the two second tug wheel assemblies (44) are symmetrically arranged on the longitudinal middle axial plane of the outer air pipe (42);

and/or; the end of the outer air pipe (42) provided with the second tug assembly (44) is provided with a baffle (45) for preventing the inner air pipe (41) from completely extending out of the outer air pipe (42); the baffle (45) is a nylon baffle; a connecting seat (47) for installation is welded below the outer air pipe (42); the mounting connecting base (47) is connected with an air pipe upright post (49).

9. The double-station cast tube surface zinc spraying machine according to claim 2, characterized in that: the top of the frame (A1) is provided with a track (A1-1) for a zinc-sprayed trolley; the zinc spraying trolley (A2) comprises a zinc spraying trolley frame (81), a zinc spraying trolley driven wheel (82), a zinc spraying trolley driving wheel (83) and a zinc spraying trolley driving speed reducer (84) are mounted below the zinc spraying trolley frame (81), and the zinc spraying trolley driving speed reducer (84) drives the zinc spraying trolley driving wheel (83) to rotate; when the zinc spraying trolley (A2) is arranged on the frame (A1), the driven wheel (82) and the driving wheel (83) of the zinc spraying trolley are assembled on the track (A1-1) for the zinc spraying trolley; a zinc wire barrel (85) and a wire supply rack (86) are arranged on the zinc spraying trolley frame (81), and zinc wires on the zinc wire barrel (85) are guided into a wire supply adjusting device (A3) along the wire supply rack (86);

and/or;

the conveying chain mechanism (A8) comprises two symmetrically-arranged cast pipe conveying chains (3), and each cast pipe conveying chain (3) comprises a driving chain wheel seat (31), a driven chain wheel seat (32), a driving chain wheel (33), a driven chain wheel (34), a chain (35), a tensioning screw (38), an upper chain track (36) and a lower chain track (37); the driving chain wheel (33) is arranged on the driving chain wheel seat (31), the driven chain wheel (34) is arranged on the driven chain wheel seat (32), and the chain (35) is meshed with the driving chain wheel (33) and the driven chain wheel (34); the upper chain track (36) and the lower chain track (37) are arranged between the driving chain wheel seat (31) and the driven chain wheel seat (32) in an up-and-down mode and used for supporting and guiding a chain (35); the tensioning screw (38) is mounted on the driven sprocket seat (32) and is used for pushing the driven sprocket (34) to move transversely so as to tension the chain (35).