CN112138927A

CN112138927A - Metal pipe external thread processing device with coating

Info

Publication number: CN112138927A
Application number: CN202010801769.9A
Authority: CN
Inventors: 丁世富; 孙向东; 席敦亮; 苑东升; 张家铭; 辛永
Original assignee: Weifang East Pipe Industry Technology Co ltd
Current assignee: Weifang East Pipe Industry Technology Co ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2020-12-29
Anticipated expiration: 2040-08-11
Also published as: CN112138927B

Abstract

The invention relates to the technical field of metal pipe chipless treatment, and provides a metal pipe external thread treatment device with a coating, which comprises a pipe orifice treatment mechanism and a conveying mechanism; the pipe orifice processing mechanism comprises a first rotating roller and a second rotating roller; the first rotating roller is coaxially connected with the rolling brush; a paint dipping component is arranged below the rolling brush; the conveying mechanism comprises two synchronous stepping pusher dogs, and the untreated metal pipe is placed on the pipe orifice processing mechanism, and the treated metal pipe is taken down from the pipe orifice processing mechanism. Therefore, the invention adopts the rolling brush which is coaxial with the first rotating roller; the rolling brush adopts a paint dipping mode to take paint as the uniform paint brushing of the threaded area of the metal pipe. The effective protection treatment of the pipe orifice threads of the galvanized metal pipe is realized. The conveying mechanism adopts two synchronous stepping pusher dogs to simultaneously take and place the metal tubes. The method has the advantages of simple and convenient operation, low labor intensity, high automation degree and good treatment effect, and replaces manual treatment of the metal pipe orifice.

Description

Metal pipe external thread processing device with coating

Technical Field

The invention belongs to the technical field of metal pipe chipless treatment, and particularly relates to a metal pipe external thread treatment device with a coating.

Background

The surface of the pipe body is usually galvanized due to the need of corrosion prevention. After galvanization, threads are machined at the position of the pipe opening for future connection.

Since the threaded connection has certain precision requirements, it cannot be machined before galvanization, but only after the entire tube has been galvanized. As a result, the coating in the threaded region of the nozzle is destroyed, and the service life of this region is greatly reduced if the protective treatment is not carried out.

At present, the protection treatment for the area is only a mode of painting. The requirement of paint film is also stricter due to the limitation of thread precision. The paint film must be uniformly covered, no paint beading exists, and the thickness is small so as not to affect the threaded connection in use. Therefore, the existing painting equipment is difficult to adapt and can only adopt a manual painting mode to carry out protection treatment. The production efficiency is low, the requirement on the technical level of an operator is high, and the batch production is not facilitated.

In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.

Disclosure of Invention

In view of the above-mentioned drawbacks, the present invention provides a device for processing external threads of a metal pipe with a plated layer, which comprises a pipe orifice processing mechanism and a conveying mechanism; the pipe orifice processing mechanism is provided with a first rotating roller and a second rotating roller which rotate in the same direction and at the same speed, and supports and drives the metal pipe to stably rotate; simultaneously arranging a rolling brush coaxial with the first rotating roller; the rolling brush adopts a paint dipping mode to take paint as the uniform paint brushing of the threaded area of the metal pipe. The manual treatment of the manual metal pipe orifice is replaced, the operation efficiency is high, and the treatment effect is good. Is suitable for protective paint with low viscosity and good fluidity. The transmission mechanism adopts two synchronous stepping pusher dogs. The operation is simple and convenient, the labor intensity is low, the manual treatment of the manual metal pipe orifice is replaced, and the automation degree is high.

In order to achieve the above object, the present invention provides a metal pipe external thread processing device with a coating, comprising a pipe orifice processing mechanism and a conveying mechanism; the conveying mechanism is used for placing the untreated metal pipe on the pipe orifice processing mechanism and taking the treated metal pipe off the pipe orifice processing mechanism;

the pipe orifice processing mechanism comprises a first rotating roller and a second rotating roller which are used for bearing the metal pipe; the first rotating roller and the second rotating roller have the same diameter and rotate in the same direction and at the same speed;

the first rotating roller is coaxially connected with a roller brush used for painting the threaded area of the pipe orifice of the metal pipe; the diameter of the rolling brush is slightly larger than that of the first rotating roller; the width of the rolling brush is larger than that of the threaded area;

a paint dipping component is arranged below the rolling brush; a paint scraping plate is also arranged before the rolling brush contacts the threaded area and is used for scraping off the redundant paint on the rolling brush; the paint scraping plate has an inclination angle of 3-5 degrees;

the paint dipping assembly comprises a paint storage barrel arranged below the rolling brush, and the paint scraping plate is fixed on the paint storage barrel; the bottom of the rolling brush extends into the paint storage barrel, and the paint is continuously dipped from the paint storage barrel when the rolling brush rotates;

the conveying mechanism comprises stepping pusher dogs which are respectively arranged at two sides of the metal pipe on the pipe orifice processing mechanism; the stepping pusher dogs on the two sides are respectively butted with the feeding rail and the discharging rail; the center of the stepping pusher dog is sleeved with a rotating shaft, and four claw hooks for moving the metal pipe are uniformly and annularly arranged on the periphery of the stepping pusher dog; the included angle between two adjacent claw hooks is 90 degrees; the stepping pusher dogs on the two sides rotate synchronously at the same speed and rotate 90 degrees each time.

According to the metal pipe external thread processing device with the coating, the paint dipping assembly further comprises a paint dipping roller arranged in the paint storage barrel; the rolling brush is contacted with the paint dipping roller when rotating and dips paint.

According to the metal pipe external thread processing device with the coating, the paint scraping plate is provided with the paint gathering convex structure for quickly gathering scraped paint into paint drops.

According to the metal pipe external thread processing device with the coating, the paint storage barrel is further connected with the paint supplementing barrel, and a liquid level meter is arranged in the paint supplementing barrel.

According to the metal pipe external thread processing device with the coating, the diameter of the rolling brush is at least 2mm larger than that of the first rotating roller; the width of the rolling brush is 3-5mm larger than the width of the thread area.

According to the metal pipe external thread processing device with the coating, the pipe orifice end of the metal pipe is provided with the limiting baffle plate for preventing the metal pipe from axially moving.

According to the metal pipe external thread processing device with the coating, the claw hook is in the shape of a circular arc.

According to the metal pipe external thread processing device with the coating, one side of the rotating supporting plate facing to the feeding rail is provided with the guide surface.

According to the metal pipe external thread processing device with the coating, the first rotating roller and the second rotating roller are respectively connected with the first driving wheel and the second driving wheel; the first transmission wheel and the second transmission wheel have the same diameter and are respectively in transmission connection with the roller motor.

The invention aims to provide a metal pipe external thread processing device with a coating, which comprises a pipe orifice processing mechanism and a conveying mechanism; the pipe orifice processing mechanism is provided with a first rotating roller and a second rotating roller which rotate in the same direction and at the same speed, and supports and drives the metal pipe to stably rotate; simultaneously arranging a rolling brush coaxial with the first rotating roller; the rolling brush adopts a paint dipping mode to take paint as the uniform paint brushing of the threaded area of the metal pipe. The manual treatment of the manual metal pipe orifice is replaced, the operation efficiency is high, and the treatment effect is good. Is suitable for protective paint with low viscosity and good fluidity. The transmission mechanism adopts two synchronous stepping pusher dogs. The operation is simple and convenient, the labor intensity is low, the manual treatment of the manual metal pipe orifice is replaced, and the automation degree is high.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a portion of the region of FIG. 1;

FIG. 3 is a schematic structural view of the driving relationship of the first rotating roller and the second rotating roller of the present invention;

FIG. 4 is a schematic view of the structure in the direction A of FIG. 2;

FIG. 5 is a schematic structural view of the region A in FIG. 2;

FIG. 6 is a schematic structural diagram of an embodiment of the direction A in FIG. 5;

FIG. 7 is a schematic structural diagram of an embodiment of the direction A in FIG. 5;

FIG. 8 is a schematic structural view of the region A in FIG. 6;

FIG. 9 is a schematic structural view of a portion of the region of FIG. 8;

FIG. 10 is a schematic view of the structure in the direction A of FIG. 1;

FIG. 11 is a schematic structural diagram of an embodiment of the direction A in FIG. 2;

in the figure: 1-a first rotating roller, 11-a first driving wheel; 2-a second rotating roller, 21-a second transmission wheel; 3-rotating the supporting plate, 31-V-shaped groove; 4-rolling brush, 41-paint replenishing barrel, 42-liquid level meter, 43-paint dipping roller and 44-paint gathering convex structure; 5-paint storage barrel, 51-stirrer, 52-paint scraping plate; 6-stepping pusher dog, 61-feeding rail, 62-discharging rail; 10-metal tube, 101-thread area, 102-limit baffle, 103-leading-in angle; 20-roller motor, 30-transmission mechanism.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments, it being understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance

Or implicitly the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Referring to fig. 1, the present invention provides a metal pipe external thread processing apparatus with a plated layer, including a pipe orifice processing mechanism and a delivery mechanism 30; the transfer mechanism 30 is used to place the untreated metal tube 10 on the tube-opening treating mechanism and to remove the treated metal tube 10 from the tube-opening treating mechanism.

Referring to fig. 1, the nozzle processing mechanism includes a first rotating roller 1 and a second rotating roller 2 for holding a metal pipe 10; the first rotating roller 1 and the second rotating roller 2 have the same diameter and rotate in the same direction and at the same speed. The metal pipe 10 can be driven to rotate stably.

Referring to fig. 2, the first rotating roller 1 and the second rotating roller 2 are respectively connected with a first driving wheel 11 and a second driving wheel 21; with reference to fig. 3, the first driving wheel 11 and the second driving wheel 21 have the same diameter and are respectively in transmission connection with the roller motor 20; preferably, the first transmission wheel 11 and the second transmission wheel 21 of the present invention are connected to the roller motor 20 in a chain transmission or a belt transmission.

Better, all cladding has the rubber layer on the roller body of first live-rollers 1 and second live-rollers 2, increases the frictional force with tubular metal resonator 10, avoids skidding.

Referring to fig. 4, preferably, the present invention further comprises a rotating pallet 3, wherein the rotating pallet 3 has a V-shaped groove 31 for limiting the detachment of the metal pipe 10; the V-groove 31 restricts the side-to-side swing of the metal pipe 10 to prevent it from coming off the rotating roller. Preferably, the rotating supporting plate 3 is provided with a long hole, so that the height of the rotating supporting plate 3 can be conveniently adjusted, and the outer wall of the metal pipe 10 is not contacted with the groove edge when rotating.

As an embodiment, the first rotating roller 1 and the second rotating roller 2 of the present invention may be provided in parallel; suitable for treating pipes of relatively small length, for example lengths as small as two metres.

As an embodiment, the first rotating roller 1 and the second rotating roller 2 of the present invention have a certain distance in the axial direction, and are suitable for pipes with a large length, such as a length exceeding 3 meters. The metal pipe 10 can be stably supported on the premise of not increasing the number of the rotating rollers.

Referring to fig. 5, the first rotating roller 1 is coaxially connected to a roller brush 4 for painting a threaded area 101 of a nozzle of a metal pipe 10; the diameter of the roller brush 4 is slightly larger than the diameter of the first rotating roller 1 in order to be able to brush the roots of the threads. The contact position of the roller brush 4 with the threaded area 101 of the metal pipe 10 has the same linear velocity, but the angular velocity of the roller brush 4 is different from that of the metal pipe 10, so that the roller brush 4 can brush a uniform paint film on the threaded area 101 as the metal pipe 10 rotates. The width of the rolling brush 4 is larger than that of the threaded area 101, so that the brush leakage of the threaded area 101 is avoided. The width of the rolling brush 4 of the present invention is 3-5mm greater than the width of the threaded zone 101.

Since the first rotating rollers 1 of the rolling brush 4 are coaxial, the rolling brush 4 can achieve a uniform painting effect for metal pipes 10 of different diameters.

In order to ensure the painting effect, through a plurality of experiments of the inventor, the diameter of the rolling brush 4 of the invention is at least 2mm, preferably 3-6mm larger than that of the first rotating roller 1. It is ensured that the bristles of the roller brush 4 are able to contact the thread sufficiently and form a uniform paint film in the threaded area 101.

Further, in order to avoid the leakage of brushing in the threaded area 101 caused by the axial movement of the metal pipe 10 during the brushing of paint, a limiting baffle plate 102 for preventing the axial movement of the metal pipe 10 is arranged at the pipe orifice end of the metal pipe 10. Preferably, the upper portion of the limit stop 102 has a lead-in angle 103 for the metal pipe 10 to be inserted.

Referring to fig. 6, a paint dipping assembly is arranged below the rolling brush 4; in connection with fig. 7, a paint scraper 52 is also provided for scraping off excess paint from the roller brush 4 before the roller brush 4 contacts the threaded area 101.

The paint dipping assembly comprises a paint storage barrel 5 arranged below the rolling brush 4, and the paint scraping plate 52 is fixed on the paint storage barrel 5; the bottom of the rolling brush 4 extends into the paint storage barrel 5, and paint is continuously dipped from the paint storage barrel 5 when the rolling brush 4 rotates; after dipping, excess paint is scraped off by the paint scraper 52 and then brought into contact with the threaded region 101 of the metal tube 10, forming a thin and uniform paint layer thereon.

Referring to fig. 8, the paint scraper 52 has an inclination of 3-5 deg. in order to allow the scraped paint to run off as quickly as possible and to avoid build-up. Preferably, referring to fig. 9, the paint scraping plate 52 has a paint gathering protrusion 44 thereon, where the scraped paint is quickly gathered into paint drops and falls into the paint storage barrel 5, so that the scraped paint by the roller brush 4 is quickly guided away, thereby easily controlling the amount of paint on the roller brush 4.

Preferably, the paint storage barrel 5 is further connected with a paint supplementing barrel 41, and a liquid level meter 42 is arranged in the paint supplementing barrel 41; the liquid level heights of the paint storage barrel 5 and the paint replenishing barrel 41 are always equal because the two barrels are communicated. Therefore, the liquid level height in the paint storage barrel 5 can be known through the liquid level meter 42, and paint can be conveniently replenished from the paint replenishing barrel 41. The multi-sleeve pipe mouth protection mechanism can be arranged to operate simultaneously, the paint storage barrels 5 of the protection mechanisms can be connected with the same paint replenishing barrel 41, and the liquid levels in the paint storage barrels 5 are the same. Meanwhile, paint repair can be completed through one paint repair barrel 41, and paint repair efficiency is improved.

Better, store up the bottom of paint bucket 5 and be equipped with agitator 51, during the operation, agitator 51 slowly rotates, makes the protective paint in the bucket keep even, improves the uniformity of protective effect.

As an example, referring to fig. 7, the paint dipping assembly further comprises a paint dipping roller 43 disposed in the paint storage bucket 5; the roller brush 4 rotates to contact the paint dipping roller 43 and dip the paint. The threaded paint film is thin and the roughness of the surface of the dip roll 43 is low. Since the roll brush 4 dips paint from the paint dipping roller 43, the amount of paint is more easily controlled.

The directions of rotation of the paint dipping roller 43 and the rolling brush 4 can be the same or opposite. The person skilled in the art can make an adaptive choice depending on the actual production situation.

The rolling brush 4 adopted by the invention adopts a paint dipping mode, and is suitable for protective paint with low viscosity and good fluidity.

Referring to fig. 10, the conveying mechanism 30 includes stepping fingers 6 respectively provided on both sides of the metal pipe 10 on the pipe orifice processing mechanism; the stepping pusher dogs 6 on the two sides are respectively butted with a feeding rail 61 and a discharging rail 62; the center of the stepping pusher dog 6 is sleeved with a rotating shaft, and four claw hooks for moving the metal pipe 10 are uniformly and annularly arranged on the periphery of the stepping pusher dog; the included angle between two adjacent claw hooks is 90 degrees; the stepping pusher dogs 6 on both sides rotate synchronously at the same speed and rotate 90 degrees each time.

The processed metal pipe 10 can be taken down by the stepping pusher dogs 6 at two sides once, and an unprocessed metal pipe 10 is placed on the pipe orifice processing mechanism.

Preferably, the claw hook is arc-shaped, so as to be convenient for hooking the metal pipe 10. The feeding rail 61 and the discharging rail 62 both have a certain inclination angle, and an operator only needs to place the metal tube 10 on the feeding rail 61 and receive the rolled metal tube 10 on the discharging rail 62. The operation is simple, the labor intensity is low, the automation degree is high, and the treatment efficiency of the metal tube 10 is improved.

The center of the stepping pusher dog 6 is sleeved with a rotating shaft, a chain wheel is arranged on the rotating shaft, and the chain wheel is in transmission connection with a stepping motor. Preferably, the chain wheels of the stepping pusher dogs 6 on both sides are connected with the same stepping motor (similar to the connection mode of fig. 3), so that the synchronous and same-speed rotation of the two is realized.

Referring to fig. 11, a guide surface 32 is arranged on one side of the rotating pallet 3 facing the feeding rail 61; facilitating the rolling of the metal tube 10 into the V-groove 31.

In summary, the present invention provides a device for processing the external thread of a metal pipe with a coating, which comprises a pipe orifice processing mechanism and a conveying mechanism; the pipe orifice processing mechanism is provided with a first rotating roller and a second rotating roller which rotate in the same direction and at the same speed, and supports and drives the metal pipe to stably rotate; simultaneously arranging a rolling brush coaxial with the first rotating roller; the rolling brush adopts a paint dipping mode to take paint as the uniform paint brushing of the threaded area of the metal pipe. The manual treatment of the manual metal pipe orifice is replaced, the operation efficiency is high, and the treatment effect is good. Is suitable for protective paint with low viscosity and good fluidity. The transmission mechanism adopts two synchronous stepping pusher dogs. The operation is simple and convenient, the labor intensity is low, the manual treatment of the manual metal pipe orifice is replaced, and the automation degree is high.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A metal tube external thread processing device with a coating is characterized by comprising a tube orifice processing mechanism and a conveying mechanism; the conveying mechanism is used for placing the untreated metal pipe on the pipe orifice processing mechanism and taking the treated metal pipe off the pipe orifice processing mechanism;

2. The apparatus for treating external threads of a metal pipe having a coating layer according to claim 1, wherein the paint dipping assembly further comprises a paint dipping roller disposed in the paint storage barrel; the rolling brush is contacted with the paint dipping roller when rotating and dips paint.

3. The metal tube external thread processing apparatus with coating according to claim 2, wherein said paint scraper has a paint gathering convex structure for fast gathering of scraped paint into paint droplets.

4. The metal pipe external thread processing device with coating of claim 2, wherein the paint storage barrel is further connected with a paint replenishing barrel, and a liquid level meter is arranged in the paint replenishing barrel.

5. The metal pipe external thread processing apparatus with a coating layer according to claim 1, wherein a diameter of the roll brush is at least 2mm larger than a diameter of the first rotating roller; the width of the rolling brush is 3-5mm larger than the width of the thread area.

6. The metal pipe external thread processing apparatus with coating of claim 1, wherein the pipe orifice end of the metal pipe is provided with a limit baffle for avoiding axial play of the metal pipe.

7. The apparatus for treating external threads of a metal pipe having a plated layer according to any one of claims 1 to 6, wherein the claw hook has a circular arc shape.

8. The apparatus for treating external threads of a plated metal pipe according to claim 7, wherein a guide surface is provided on a side of the rotating blade facing the feeding rail.

9. The metal pipe external thread processing apparatus with a plated layer according to claim 7, wherein a diameter of the roll brush is at least 2mm larger than a diameter of the first rotating roller; the width of the rolling brush is 3-5mm larger than the width of the thread area.

10. The apparatus for processing external threads of a metal pipe with a plated layer according to claim 7, wherein the first rotating roller and the second rotating roller are respectively connected to a first driving wheel and a second driving wheel; the first transmission wheel and the second transmission wheel have the same diameter and are respectively in transmission connection with the roller motor.