CN215878606U

CN215878606U - Plastic coating device for interior of galvanized steel pipe

Info

Publication number: CN215878606U
Application number: CN202121192806.7U
Authority: CN
Inventors: 马辉; 沈国方; 郑小艳; 杨伟芳; 徐志茹; 万秀林; 束传伟
Original assignee: China United Engineering Corp Ltd
Current assignee: China United Engineering Corp Ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-02-22
Anticipated expiration: 2031-05-31

Abstract

The utility model provides a plastic coating device for the interior of a galvanized steel pipe, which is time-saving and labor-saving in the pipe fitting clamping and adjusting process and can not occupy too much pallet forks. The utility model comprises two sets of powder rooms which are oppositely arranged; the method is characterized in that: the device also comprises a conveying jacking device; the conveying jacking device is arranged between the two sets of powder rooms and comprises a bracket, a guide pillar, a push rod driving mechanism, a push plate, a push rod and a roller fixing frame; the bracket is fixedly arranged on the ground; the push rod is vertically arranged, and the upper end of the push rod is connected with the push plate; the guide post is vertically and slidably arranged on the bracket; the push plate is fixedly arranged on the top of the guide pillar; the roller fixing frame is fixedly arranged on the push plate, and the roller is rotatably arranged on the roller fixing frame; the push rod driving mechanism is arranged on the bracket and is connected with the push rod.

Description

Plastic coating device for interior of galvanized steel pipe

Technical Field

The utility model relates to a plastic coating device for the interior of a galvanized steel pipe.

Background

The steel pipe is comparatively common in daily life, makes its bore various according to the difference of usage, in some special use scenes, needs to carry out retreatment to the steel pipe, and one of them is: the coating is carried out in the steel pipe, so that a polyethylene or epoxy coating is formed on the inner wall of the steel pipe, the problems of corrosion and scaling in the process of burying the steel pipe and delivering water are solved, the phenomena of pipeline blockage and spray blockage are avoided, and the service life of the pipeline is prolonged. The existing spraying of the small-caliber steel pipe is basically carried out by penetrating a small spray gun and a hose into the steel pipe in a mode of dragging and moving while spraying, although the coating can be finished in the mode, the coating thickness and uniformity are poor, and meanwhile, the adhesion force between the powder material and the steel pipe is poor, so that the service life of the steel pipe is influenced.

The chinese patent application No. 201711180263.5 discloses a powder room for internal suction coating of pipe fittings, wherein two powder rooms are oppositely arranged together, and the pipe fittings are heated and then installed between the two powder rooms through two chucks, so that a sealed pipeline mechanism is formed by the powder barrel, the vacuum dust collector, the first suction coating channel and the pipe fittings. When the vacuum dust suction device at one end is communicated with the pipe fitting through the switch device, the powder barrel at the other end is communicated with the pipe fitting, the anticorrosive paint in the powder barrel at the other end is sucked out through the vacuum dust suction device, and the anticorrosive paint is contacted with the inner wall of the pipe fitting and attached to the inner wall of the pipe fitting when passing through the pipe fitting. The powder spraying gun is not needed in the working process, the spraying gun is suitable for various pipe fittings with different diameters, the spraying cost is reduced, and the problem of corrosion resistance of the inner wall of the pipeline is effectively solved. It has the problems that: the pipe fitting clamping can only be adjusted the position of pipe fitting by the continuous lift of fork at the in-process between two chucks for the pipe fitting both ends can align the chuck, but the fork precision is not high, makes the adjustment process waste time and energy, and simultaneously, has occupied the fork again in the adjustment process, and the fork can not leave to go the tubulation to send the pipe, has reduced the availability factor of fork.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides the plastic coating device for the interior of the galvanized steel pipe, wherein the pipe fitting clamping and adjusting process is time-saving and labor-saving, and the pallet fork cannot be excessively occupied.

The technical scheme adopted by the utility model for solving the problems is as follows: the plastic coating device for the interior of the galvanized steel pipe comprises two sets of powder rooms which are oppositely arranged; the method is characterized in that: the device also comprises a conveying jacking device; the conveying jacking device is arranged between the two sets of powder rooms and comprises a bracket, a guide pillar, a push rod driving mechanism, a push plate, a push rod and a roller fixing frame; the bracket is fixedly arranged on the ground; the push rod is vertically arranged, and the upper end of the push rod is connected with the push plate; the guide post is vertically and slidably arranged on the bracket; the push plate is fixedly arranged on the top of the guide pillar; the roller fixing frame is fixedly arranged on the push plate, and the roller is rotatably arranged on the roller fixing frame; the push rod driving mechanism is arranged on the bracket and is connected with the push rod.

The lower end of the bracket is provided with an adjusting bolt.

The lower end of the powder room is provided with a pulley, the pulley is arranged on a guide rail, and the guide rail is paved on the ground.

The powder room is internally provided with a rotary clamping mechanism, and the rotary clamping mechanism comprises a transmission motor, a driving gear, a driven gear, a rotating head, a sliding table, a fixed pipe and a base; the base is fixedly arranged in the powder room; the sliding table is slidably arranged on the base; the cylinder is arranged on the base, and a piston rod of the cylinder is connected with the sliding table; the transmission motor and the fixed pipe are fixed on the sliding table, and one end of the transmission motor is provided with a driving gear; the rotating head is rotatably arranged on the fixed pipe; driven gear fixed mounting is on the rotating head, and driven gear and driving gear meshing.

The front end surface of the rotating head is a conical surface.

The powder room is internally provided with an internal powder supply device, and the internal powder supply device comprises a dust collection gun, a barrel body, a vibrating screen, a powder barrel and a feed hopper; the barrel body is fixedly arranged in the powder room; the vibrating screen and the feed hopper are both arranged on the barrel body, and the feed hopper is connected with the vibrating screen; the powder barrel is arranged inside the barrel body, and the vibrating screen is connected with the powder barrel; the fixed pipe is connected with the powder barrel through a pipeline, and a first three-way valve is arranged on the pipeline; the fixed pipe is also connected with a dust absorption gun through a pipeline, and a second three-way valve is arranged on the pipeline.

A negative pressure cavity is arranged in the powder room, and a dust collection gun is connected with the negative pressure cavity.

The powder room is internally provided with a filtering device, and the filtering device comprises a box body, a negative pressure fan and a filter; the box body is fixedly arranged in the powder room; the filter is arranged in the box body; the box body is connected with the feed hopper; the negative pressure fan is arranged on the box body; the negative pressure cavity is connected with the box body.

The utility model also comprises an external powder supply device which is connected with the feed hopper.

The conveying jacking device is provided with a plurality of rollers, two rollers are used as one group, and a plurality of groups of rollers are arranged on one set of conveying jacking device.

Compared with the prior art, the utility model has the following advantages and effects: convenient to use, easy operation utilizes to carry the jacking device adjustment when the pipe fitting clamping, and labour saving and time saving can not too much occupy the fork, and the fork can leave to go to carry out other operations when adjusting and inhaling to scribble, has improved the availability factor of fork.

Drawings

Fig. 1 is a schematic front view of the structure according to the embodiment of the present invention.

Fig. 2 is a schematic top view of the embodiment of the utility model.

Fig. 3 is a schematic structural diagram of the powder room according to the embodiment of the utility model.

Fig. 4 is a schematic structural diagram of a rotary clamping mechanism according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a filtering apparatus according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a conveying jacking device according to an embodiment of the present invention.

Fig. 7 is a schematic side view of a conveying and jacking device according to an embodiment of the present invention.

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.

The embodiment of the utility model comprises a powder room 1, an external powder supply device 8 and a conveying and jacking device 11.

The powder room 1 is provided with two sets which are oppositely arranged. Pulley 12 is installed to the lower extreme of powder room 1, and pulley 12 installs on guide rail 36, and guide rail 36 is laid subaerial, so can adjust the position of powder room 1, can carry out the distance adjustment according to the steel pipe of different length.

The powder room 1 is internally provided with an internal powder supply device, a rotary clamping mechanism 7, a filtering device, a negative pressure cavity 37 and a fluidized bed.

The rotary clamping mechanism 7 includes a transmission motor 13, a driving gear 14, a driven gear 15, a rotary head 16, a slide table 17, a fixed pipe 18, and a base 19.

The base 19 is fixedly arranged in the powder room 1.

The upper end of the base 19 is provided with a sliding groove 21, and the bottom of the sliding table 17 is embedded into the sliding groove 21, so that the sliding table 17 is slidably mounted on the base 19.

The cylinder 20 is installed at the lower extreme of base 19, and the piston rod of cylinder 20 is connected with slip table 17, and the piston rod of cylinder 20 can drive slip table 17 and remove.

The transmission motor 13 and the fixed tube 18 are fixed on the sliding table 17, and one end of the transmission motor 13 is provided with the driving gear 14.

The rotary head 16 is rotatably mounted on the fixed pipe 18 through a bearing, the front end surface of the rotary head 16 is a conical surface, so that the rotary head is suitable for steel pipes with various pipe diameters,

the driven gear 15 is fixedly installed on the rotary head 16, and the driven gear 15 is engaged with the driving gear 14.

Both the stationary tube 18 and the rotating head 16 are hollow structures.

A sealing ring 39 is provided between the swivel head 16 and the stationary pipe 18.

The tail end of the fixed pipe 18 is connected with the powder barrel 3 of the internal powder supply device through a pipeline, and a first three-way valve 4 is arranged on the pipeline; the tail end of the fixed pipe 18 is also connected with the dust suction gun 5 through a pipeline, and a second three-way valve 6 is arranged on the pipeline. The dust suction gun 5 is connected to the negative pressure chamber 37 of the internal powder supply device.

The internal powder supply device comprises a dust suction gun 5, a barrel body 38, a vibrating screen 2, a powder barrel 3 and a feed hopper 34.

The barrel body 38 is fixedly arranged in the powder room 1.

Shale shaker 2 and feeder hopper 34 all set up on staving 38, and feeder hopper 34 sets up in the upper end of shale shaker 2, and feeder hopper 34 is connected with shale shaker 2, and the upper end of feeder hopper 34 is equipped with feed inlet 35. The feed hopper 34 is provided with an ultra-fine powder pipe.

The powder barrel 3 is arranged inside the barrel body 38, and the vibrating screen 2 is connected with the powder barrel 3. The vibrating screen 2 is a 24-mesh coarse screen, the vibrating screen 2 is provided with a vibrating permanent magnet device, powder screened by the vibrating screen falls into the powder barrel 3 after passing through the permanent magnet separation device, fine iron chips, sand grains and the like are adsorbed, the dust suction gun is prevented from being abraded, and iron dust adsorbed by the permanent magnet separation device is regularly cleaned. The powder barrel 3 is provided with a high-low powder level detector.

The negative pressure chamber 37 is located below the powder bucket 3. The vacuum chamber 37 is connected to the housing of the filter device via a connecting flange 33.

The filtering device comprises a box body, a negative pressure fan 32, a filter 9 and a pulse back-blowing device 31.

The box body is fixedly arranged in the powder room 1.

The filter 9 is provided in plurality, and the filter 9 is installed inside the case.

The lower end of the box body is provided with a discharge port 30, the discharge port 30 is connected with the fluidized bed, and a Venturi type powder conveying pump is arranged; the fluidized bed is connected to the inlet 35 of the feed hopper 34 and the reclaimed powder is fed to the feed hopper 34. The pressure of the powder conveying pump is generally 02-0.4MPa, and too high pressure can cause overlarge airflow entering the vibrating screen 2, and a powder-gas mixture can emerge from an ultrafine powder pipe at the upper part of the vibrating screen 2; the powder can flow backward into the fluidized bed due to the fact that the pressure is too low and is caused to be positive pressure of the powder barrel 3, the Venturi type powder conveying pump is required to be cleaned every day, and blockage of large powder blocks is avoided.

A negative pressure fan 32 is mounted at the upper end of the box.

The pulse back-blowing device 31 is connected with the filter 9, and the pulse back-blowing device 31 is mainly used for cleaning dust on the filter 9 and preventing the dust from being excessively accumulated to influence the filtering effect of the filter.

The conveying and jacking device 11 is arranged between the two powder rooms 1 and comprises a bracket 22, a guide post 23, a push rod driving mechanism 24, a push plate 25, a push rod 26, a roller fixing frame 27 and an adjusting bolt 29. The conveying jacking devices 11 are at least two sets and are arranged in sequence.

The support 22 is fixedly arranged on the ground.

The push rod 26 is vertically disposed, and has a lower end connected to the bracket 22 and an upper end connected to the push plate 25. The push rod 26 is a telescopic push rod.

The guide posts 23 are vertically slidably mounted on the bracket 22 and are located on both sides of the push rod 26. The push plate 25 is fixedly mounted on top of the guide post 23.

The push plate 25 is fixedly provided with a roller fixing frame 27, the roller fixing frame 27 is provided with a roller 28, and the roller 28 is used for supporting the steel pipe 10. The gyro wheel 28 is a plurality of to use two to be a set of, a set of gyro wheel 28 provides a station, can support a steel pipe, is provided with multiunit gyro wheel 28 on the same transport jacking device 11, so forms a plurality of stations, so once can accomplish the inside plastic-coated of many steel pipes of less bore.

A push rod drive mechanism 24 is mounted on the carriage 22 and is connected to a push rod 26. The push rod driving mechanism 24 employs an electric actuator.

An adjusting bolt 29 is mounted at the lower end of the bracket 22, and the adjusting bolt 29 is used for adjusting the height of the bracket 22.

The external powder supply 8 is connected to the inlet opening 3 of the feed hopper 34. The external powder supply device 8 can adopt the prior art, in the embodiment, the external powder supply device 8 is provided with a Venturi type powder conveying pump, and an electromagnetic valve of the Venturi pump is controlled to be automatically opened and closed according to a signal of a powder level switch, so that the automatic powder supplementing effect is achieved; the bottom of the external powder supply device 8 is provided with a fluidized bed; the upper part of the new powder barrel is provided with a larger diameter transparent powder pipe which is matched with an auxiliary air nozzle and is directly connected to the negative pressure cavity 37 for recovering the ultrafine powder in the powder supply barrel.

When adding powder, pour powder into outside confession powder device 8, come to the powder in the outside confession powder device 8 and reach shale shaker 2 upper portion through feed inlet 35 through the powder pipe, get into powder bucket 3 after sieving, magnetism inhale.

When the steel pipe conveying and jacking device works, the heated steel pipe 10 is placed on the roller 28 of the conveying and jacking device 11 through a pallet fork and the like, the push rod driving mechanism 24 works, the push rod 26 pushes the steel pipe 10 to ascend, and the steel pipe conveying and jacking device stops when reaching a proper position; the cylinder 20 of two sets of powder rooms 1 promotes the slip table 17 and draws close to the centre afterwards, and the both ends of steel pipe 10 support on the preceding terminal surface of rotating head 16, and the rotating head 16 at both ends cliies steel pipe 10 fixedly, and driving motor 13 drives driving gear 14 afterwards and rotates, and driving gear 14 drives driven gear 15 and rotates, and driven gear 15 drives rotating head 16 and rotates, and rotating head 16 drives steel pipe 10 and rotates.

When the dust suction gun 5 of one set of powder room 1 sucks and coats, the huge vacuum suction forces the powder of the other set of powder room 1 to reach the steel pipe 10 after passing through the hollow fixed pipe 18 and the rotating head 16 from the powder barrel 3, the powder contacts the high-temperature steel pipe 10, melts and adheres to the inner wall, the redundant powder is brought to the inner cavity of the rotating head 16 of the first set of powder room 1 by the negative pressure airflow in the workpiece, sucked into the negative pressure cavity 37 through the dust suction gun 5, and then enters the box body for filtering; the filtered dust is conveyed into a feed hopper 34 through a discharge port 30, and finally falls into a powder barrel 3 through screening by a vibrating screen 2, so that one-way circulation is completed; when the two sides are sucked and coated, the dust suction guns 5 of the two sets of powder rooms 1 alternately complete the process. After the suction coating operation is finished, the steel pipe 10 continues to rotate, after the powder is leveled and solidified for a few seconds, the rotating head 16 is loosened, and the conveying jacking device 11 is used for placing the steel pipe on the fork and conveying the steel pipe to the next station. At this time, the dust suction guns 5 of the two powder rooms 1 are opened simultaneously to suck the accumulated powder in the inner cavity of the rotating head 16.

The utility model is also provided with a pneumatic control cabinet and an electric control cabinet in the using process, wherein the pneumatic control cabinet is mainly used for displaying and controlling the pressure of the dust collection gun, the fluidizing pressure of the external powder supply device, the fluidizing pressure of the filtering device, the cleaning pressure of the filter and the like.

The electric control cabinet comprises the control of the powder room, the gas-electric control of powder supply and recovery and the like; the touch screen is configured on the electric control cabinet, and related programs are set through the touch screen, so that the work control of the three-way valve and the dust collection gun is realized.

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. Equivalent or simple changes in the structure, characteristics and principles of the utility model 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 utility model as defined in the accompanying claims.

Claims

1. The plastic coating device for the interior of the galvanized steel pipe comprises two sets of powder rooms which are oppositely arranged; the method is characterized in that: the device also comprises a conveying jacking device; the conveying jacking device is arranged between the two sets of powder rooms and comprises a bracket, a guide pillar, a push rod driving mechanism, a push plate, a push rod and a roller fixing frame; the bracket is fixedly arranged on the ground; the push rod is vertically arranged, and the upper end of the push rod is connected with the push plate; the guide post is vertically and slidably arranged on the bracket; the push plate is fixedly arranged on the top of the guide pillar; the roller fixing frame is fixedly arranged on the push plate, and the roller is rotatably arranged on the roller fixing frame; the push rod driving mechanism is arranged on the bracket and is connected with the push rod.

2. The inside plastic-coated device of galvanized steel pipe according to claim 1, characterized in that: and an adjusting bolt is arranged at the lower end of the bracket.

3. The inside plastic-coated device of galvanized steel pipe according to claim 1, characterized in that: the lower extreme in powder room install the pulley, the pulley is installed on the guide rail, the guide rail is laid subaerial.

4. The inside plastic-coated device of galvanized steel pipe according to claim 1, characterized in that: the powder room is internally provided with a rotary clamping mechanism, and the rotary clamping mechanism comprises a transmission motor, a driving gear, a driven gear, a rotating head, a sliding table, a fixed pipe and a base; the base is fixedly arranged in the powder room; the sliding table is slidably arranged on the base; the cylinder is arranged on the base, and a piston rod of the cylinder is connected with the sliding table; the transmission motor and the fixed pipe are fixed on the sliding table, and one end of the transmission motor is provided with a driving gear; the rotating head is rotatably arranged on the fixed pipe; driven gear fixed mounting is on the rotating head, and driven gear and driving gear meshing.

5. The inside plastic-coated device of galvanized steel pipe according to claim 3, characterized in that: the front end face of the rotating head is a conical surface.

6. The inside plastic-coated device of galvanized steel pipe according to claim 4, characterized in that: an internal powder supply device is arranged in the powder room and comprises a dust collection gun, a barrel body, a vibrating screen, a powder barrel and a feed hopper; the barrel body is fixedly arranged in the powder room; the vibrating screen and the feed hopper are both arranged on the barrel body, and the feed hopper is connected with the vibrating screen; the powder barrel is arranged inside the barrel body, and the vibrating screen is connected with the powder barrel; the fixed pipe is connected with the powder barrel through a pipeline, and a first three-way valve is arranged on the pipeline; the fixed pipe is also connected with a dust absorption gun through a pipeline, and a second three-way valve is arranged on the pipeline.

7. The inside plastic-coated device of galvanized steel pipe according to claim 6, characterized in that: a negative pressure cavity is arranged in the powder room, and the dust collection gun is connected with the negative pressure cavity.

8. The inside plastic-coated device of galvanized steel pipe according to claim 7, characterized in that: the powder room is internally provided with a filtering device, and the filtering device comprises a box body, a negative pressure fan and a filter; the box body is fixedly arranged in the powder room; the filter is arranged in the box body; the box body is connected with the feed hopper; the negative pressure fan is arranged on the box body; the negative pressure cavity is connected with the box body.

9. The inside plastic-coated device of galvanized steel pipe according to claim 6, characterized in that: still include outside powder supply device, outside powder supply device is connected with the feeder hopper.

10. The inside plastic-coated device of galvanized steel pipe according to claim 1, characterized in that: the roller is a plurality of, and two are a set of, are provided with the multiunit gyro wheel on one set of transport jacking device.