Automatic zinc spraying device

Abstract

The invention relates to the technical field of nodular cast iron pipe manufacturing, in particular to an automatic zinc spraying device which comprises a first support, a centering mechanism, a turnover mechanism, a second support, a socket grinding mechanism, a third support, a center mechanism, a zinc spraying mechanism and a control terminal. The center mechanism corresponds to the third support, and the zinc spraying mechanism corresponds to the center mechanism. The control terminal is used for controlling starting and stopping of the centering mechanism, the overturning mechanism, the second support, the socket grinding mechanism, the third support, the center mechanism and the zinc spraying mechanism. When the automatic zinc spraying device is used, starting and stopping of the centering mechanism, the overturning mechanism, the second support, the inserting opening grinding mechanism, the third support, the center mechanism and the zinc spraying mechanism are controlled through the control terminal, errors caused by manual errors are avoided, and therefore the zinc spraying quality and effect are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of ductile iron pipe manufacturing, in particular to an automatic zinc spraying device. Background Art

[0002] Ductile iron pipe refers to the pipe made by high-speed centrifugal casting of molten iron with a size of 18 or above after adding spheroidizing agent, and is referred to as ductile iron pipe, ductile iron pipe and ductile iron pipe, etc. It is mainly used for the transportation of tap water and is an ideal material for tap water pipes.

[0003] The graphite in ductile iron pipes is in spherical form, and the size of the graphite is generally 6-7. The quality requirement is that the spheroidization level of cast iron pipes should be controlled at level 1-3, and the spheroidization rate should be ≥80%, so the mechanical properties of the material itself are well improved, with the essence of iron and the performance of steel.

[0004] Ductile iron pipe is a kind of cast iron pipe. The quality requirement is that the spheroidization level of cast iron pipe should be controlled to 1-3 level with a spheroidization rate greater than 80%, so the mechanical properties of the material itself are well improved, with the essence of iron and the performance of steel. The metallographic structure of ductile iron pipe after annealing is ferrite plus a small amount of pearlite, with good mechanical properties, excellent anti-corrosion performance, good ductility, good sealing effect, easy installation, and mainly used for water supply, gas transmission, oil transmission, etc. in municipal and industrial and mining enterprises.

[0005] At present, the pipes that are processed from the centrifugal ductile iron pipe annealing furnace must be sent to the zinc spraying machine for zinc spraying anti-corrosion treatment. The zinc spraying machine is divided into four processes: centering, socket grinding, zinc spraying top rotation, and zinc spraying.

[0006] Existing zinc spraying machines usually rely on manual centering and manual socket grinding. Sometimes the socket grinding time is short, and the pipes with iron oxide are not polished cleanly, which seriously affects the product quality. In addition, there are usually errors in manual centering, which easily affects the subsequent zinc spraying effect. Summary of the invention

[0007] The invention provides an automatic zinc spraying device to solve the technical problem that manual operation of the existing zinc spraying machine during use easily causes errors and affects the quality and effect of zinc spraying.

[0008] In order to solve the above problems, the present invention provides an automatic zinc spraying device adopting the following technical solutions: An automatic zinc spraying device comprises a first bracket, a centering mechanism, a flipping mechanism, a second bracket, a socket grinding mechanism, a third bracket, a top mechanism, a zinc spraying mechanism and a control terminal. The first bracket is used for loading, with the length direction of the first bracket as the left-right direction. The second bracket is arranged on the left side of the first bracket. The flipping mechanism is used to transport the ductile iron pipe on the first bracket to the second bracket. The centering mechanism is arranged on the right side of the flipping mechanism to correct the position of the ductile iron pipe. The socket grinding mechanism is arranged corresponding to the second bracket to grind the socket of the ductile iron pipe on the second bracket; the top mechanism is arranged corresponding to the third bracket, the top mechanism is used to tighten the ductile iron pipe transported from the second bracket to the third bracket, and the zinc spraying mechanism is arranged corresponding to the top mechanism to perform zinc spraying on the ductile iron pipe tightened by the top mechanism; the control terminal is used to control the start and stop of the centering mechanism, the flipping mechanism, the second bracket, the socket grinding mechanism, the third bracket, the top mechanism and the zinc spraying mechanism.

[0009] The beneficial effect is that when the automatic zinc spraying device of the present invention is used, the ductile iron pipe is first placed on the first bracket, and then the pipe is centered by the centering mechanism and then flipped and transported to the second bracket under the action of the flipping mechanism, and then the ductile iron pipe on the second bracket is polished by the socket polishing mechanism. After the polishing is completed, the ductile iron pipe is transported to the third bracket and tightened by the top mechanism. After tightening, the zinc spraying mechanism can spray zinc on the ductile iron pipe. When the automatic zinc spraying device of the present invention is used, the centering mechanism, flipping mechanism, second bracket, socket polishing mechanism, third bracket, top mechanism, and zinc spraying mechanism are controlled by the control terminal to start and stop, so as to avoid errors caused by human errors, thereby ensuring the quality and effect of zinc spraying.

[0010] Furthermore, the first bracket includes two first support rods arranged at intervals along the front-to-back direction and the upper end surfaces of the first support rods are arranged tilted downward from right to left. The left ends of the first support rods are each provided with a first V-shaped groove, and the first V-shaped groove is adapted to the size of the ductile iron pipe.

[0011] Beneficial effects: simple structure and convenient loading.

[0012] Furthermore, the flipping mechanism includes a flipping motor and a rotating rod coaxially connected to the output shaft of the flipping motor and extending in the front-to-back direction, the rotating rod is provided with at least two flipping plates, the flipping plates are provided with rotating holes adapted to the rotating rod and the flipping plates are fixed on the rotating rod, the flipping plates have a flipping surface for lifting a ductile iron pipe and a stopping surface for stopping the ductile iron pipe from entering the first V-shaped groove, the flipping surface is concave toward the rotating hole, and the stopping surface is convex toward the direction away from the rotating hole.

[0013] Beneficial effects: simple structure, easy operation, and only one ductile iron pipe can be driven to turn over each time, ensuring uniform feeding.

[0014] Furthermore, two centering mechanisms are provided and the two centering mechanisms are symmetrically disposed on the front and rear sides of the first bracket, and the centering mechanisms include a centering telescopic cylinder and a centering plate connected to the telescopic end of the centering telescopic cylinder.

[0015] Beneficial effects: simple structure and convenient control and operation.

[0016] Furthermore, the second bracket includes two second support rods, each of which is provided with a second V-groove, the second V-groove is adapted to the size of the ductile iron pipe and the second V-groove is located on the left side of the flipping mechanism so that the flipping mechanism can flip the ductile iron pipe into the second V-groove.

[0017] Beneficial effects: simple structure and stable support.

[0018] Furthermore, the socket grinding mechanism is arranged corresponding to the second V-shaped groove to grind the ductile iron pipe in the second V-shaped groove.

[0019] Beneficial effects: simple structure and improved polishing quality of the socket.

[0020] Furthermore, a support plate is provided under the third bracket, and the support plate is arranged on the ground for movement along the left and right direction. The third bracket is arranged on the support plate and can be raised and lowered along the up and down direction. The third bracket includes two third support rods arranged at intervals along the front and back directions, and the third support rods are provided with a plurality of third V-shaped grooves arranged at intervals along the left and right directions.

[0021] Beneficial effects: simple structure and easy to support.

[0022] Furthermore, the top mechanism is arranged corresponding to the third V-shaped groove.

[0023] Beneficial effect: It is convenient to tighten the ductile iron pipe.

[0024] Furthermore, a gantry extending in the front-rear direction is provided above the top mechanism, and the zinc spraying mechanism is arranged on the gantry for movement in the front-rear direction.

[0025] Beneficial effects: simple structure, convenient movement of zinc spraying mechanism.

[0026] Furthermore, it also includes a supporting mechanism, which is provided with two supporting mechanisms and is symmetrically distributed on the front and rear sides of the third bracket along the front and rear direction. The supporting mechanism includes a supporting motor and a supporting member connected to the output shaft of the supporting motor. The supporting member is provided with a top plate, and a limiting groove adapted to the ductile iron pipe is opened at the upper end of the top plate.

[0027] Beneficial effect: It is convenient to support the ductile iron pipe from the third bracket so that the top mechanism corresponds to the inner cavity of the ductile iron pipe, thereby facilitating the top mechanism to tighten the ductile iron pipe and facilitating the zinc spraying mechanism to spray zinc on the ductile iron pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein: Figure 1 It is a structural schematic diagram of an automatic zinc spraying device of the present invention; Figure 2 for Figure 1 The enlarged schematic diagram at A in the middle; Figure 3 It is a structural schematic diagram of a supporting mechanism of an automatic zinc spraying device of the present invention; Figure 4 The present invention is a schematic structural diagram of a flip plate of an automatic zinc spraying device.

[0029] Description of reference numerals: 1. First support rod; 2. First V-shaped groove; 3. Second support rod; 4. Second V-shaped groove; 5. Third support rod; 6. Third V-shaped groove; 7. Base; 8. Rotating wheel; 9. Flipping motor; 10. Rotating rod; 11. Flipping plate; 12. Rotating hole; 13. Flipping surface; 14. Stop surface; 15. Centering telescopic cylinder; 16. Centering plate; 17. Grinding roller; 18. Grinding mechanism; 19. Support plate; 20. Mobile telescopic cylinder; 21. Top mechanism; 22. Zinc spraying mechanism; 23. Support motor; 24. Support member; 25. Top plate; 26. Limiting groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0031] Any number of elements in the drawings is for illustration and not limitation, and any naming is for distinction only and does not have any limiting meaning.

[0032] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0033] Embodiment 1 of an automatic zinc spraying device provided by the present invention: like Figures 1 to 4 As shown, an automatic zinc spraying device of the present invention comprises a first bracket, a centering mechanism, a flipping mechanism, a second bracket, a socket grinding mechanism 18, a third bracket, a top mechanism 21, a zinc spraying mechanism 22 and a control terminal.

[0034] like Figure 2 As shown, the right end of the first bracket is used for loading, and the length direction of the first bracket is the left-right direction. The first bracket includes two first support rods 1 arranged at intervals along the front-to-back direction, and the upper end faces of the first support rods 1 are arranged tilted downward from right to left. The left ends of the first support rods 1 are provided with first V-shaped grooves 2, and the first V-shaped grooves 2 are adapted to the size of the ductile iron pipe.

[0035] The second bracket is arranged on the left side of the first bracket, and the second bracket includes two second support rods 3. Each second support rod 3 is provided with a second V-shaped groove 4. The second V-shaped groove 4 is adapted to the size of the ductile iron pipe. The second V-shaped groove 4 is used to support the ductile iron pipe transported along the first bracket.

[0036] In order to ensure that the ductile iron pipe is stably transported to the corresponding second V-shaped groove 4, a base 7 is provided on both the front and rear sides of the second bracket, and two pairs of rotating wheels 8 are rotatably mounted on the base 7. The gap between the two pairs of rotating wheels 8 is adapted to the gap of the corresponding second V-shaped groove 4 and is arranged correspondingly along the front and rear directions.

[0037] The flipping mechanism is used to transport the ductile iron pipe on the first bracket to the second bracket. The flipping mechanism includes a flipping motor 9 and a rotating rod 10 coaxially connected to the output shaft of the flipping motor 9 and extending in the front-to-back direction.

[0038] like Figure 2 and Figure 4 As shown, two flip plates 11 are provided on the rotating rod 10, and a rotating hole 12 adapted to the rotating rod 10 is opened on the flip plate 11 and the flip plate 11 is fixed on the rotating rod 10. The flip plate 11 has a flip surface 13 for lifting a ductile iron pipe and a stop surface 14 for stopping the ductile iron pipe from entering the first V-shaped groove 2. The flip surface 13 is concave toward the rotating hole 12, and the stop surface 14 is convex away from the rotating hole 12. When in use, the stop surface 14 stops the ductile iron pipe on the right side of the first V-shaped groove 2, and then the flip motor 9 drives the stop surface 14 of the flip plate 11 to rotate rightward, so that the ductile iron pipe rolls along the flip surface 13 into the first V-shaped groove 2. At this time, the flip motor 9 is reversed, so that the ductile iron pipe is driven by the flip surface 13 to separate from the first V-shaped groove 2 and is transported to the second bracket.

[0039] The centering mechanism is arranged on the right side of the first V-shaped groove 2 to correct the position of the ductile iron pipe. There are two centering mechanisms and the two centering mechanisms are symmetrically arranged on the front and rear sides of the first bracket. The centering mechanism includes a centering telescopic cylinder 15 and a centering plate 16 connected to the telescopic end of the centering telescopic cylinder 15.

[0040] The spigot grinding mechanism 18 comprises a grinding roller 17 , and the grinding roller 17 is arranged in a one-to-one correspondence with the second V-shaped groove 4 to grind the spigot of the ductile iron pipe on the second V-shaped groove 4 .

[0041] The third bracket is arranged on the left side of the second bracket, and includes two third support rods 5 arranged at intervals along the front-to-back direction. The third support rods 5 are provided with a plurality of third V-shaped grooves 6 arranged at intervals along the left-to-right direction.

[0042] A support plate 19 is provided below the third bracket, a lifting cylinder is provided on the support plate 19, and the third bracket is connected to the telescopic end of the lifting cylinder to drive the third bracket to rise and fall.

[0043] A movable telescopic cylinder 20 is also provided on the left side of the third bracket. The telescopic end of the movable telescopic cylinder 20 is connected to the support plate 19 to drive the support plate 19 to move along the left-right direction, thereby driving the third bracket to move along the left-right direction.

[0044] The top mechanism 21 is arranged corresponding to the third V-shaped groove 6 to tighten the ductile iron pipe transported from the second bracket to the third bracket.

[0045] A gantry extending in the front-rear direction is also provided above the top mechanism 21 .

[0046] The zinc spraying mechanism 22 is arranged on the gantry and moves along the front-rear direction to perform zinc spraying operation on the ductile iron pipe pressed against by the top mechanism 21 .

[0047] In order to facilitate the correspondence between the ductile iron pipe and the top mechanism 21 and the zinc spraying mechanism 22, a supporting mechanism is also provided on the inner side of each top mechanism 21, such as Figure 3 As shown, the support mechanism is provided with two and is symmetrically distributed on the front and rear sides of the third bracket along the front and rear direction. The support mechanism includes a support motor 23 and a support member 24 connected to the output shaft of the support motor 23. A top plate 25 is provided on the support member 24, and a limit groove 26 adapted to the ductile iron pipe is opened at the upper end of the top plate 25.

[0048] In this embodiment, the control terminal is used to control the start and stop of the centering mechanism, the flipping mechanism, the second bracket, the socket grinding mechanism 18 , the third bracket, the top mechanism 21 , and the zinc spraying mechanism 22 .

[0049] When an automatic zinc spraying device of the present invention is used, the ductile iron pipe is first placed on the first bracket, and then it is turned over and transported to the second bracket under the action of the turning mechanism after being centered by the centering mechanism, and then the ductile iron pipe on the second bracket is ground by the socket grinding mechanism 18. After the grinding is completed, the support plate 19 is driven to move by the mobile telescopic cylinder 20 and the third V-shaped groove 6 is set corresponding to the ductile iron pipe. At this time, the third bracket is driven to rise by the lifting cylinder, so that the third V-shaped groove 6 supports the ductile iron pipe. At this time, the support plate 19 is driven to move to the left by the mobile telescopic cylinder 20 until the ductile iron pipe corresponds to the top mechanism 21. At this time, the support motor 23 is started to drive the support member 24 to reverse until the ductile iron pipe is stuck in the corresponding limit groove 26 and then tightened by the top mechanism 21. After tightening, the zinc spraying mechanism 22 can spray zinc on the ductile iron pipe.

[0050] When the automatic zinc spraying device of the present invention is in use, the centering mechanism, the turning mechanism, the second bracket, the socket grinding mechanism, the third bracket, the top mechanism and the zinc spraying mechanism are controlled by the control terminal to avoid errors caused by human errors, thereby ensuring the quality and effect of zinc spraying.

[0051] Embodiment 2 of an automatic zinc spraying device provided by the present invention: The main difference between it and Example 1 is: In Example 1, the flip plate has a flip surface for lifting a ductile iron pipe and a stop surface for stopping the ductile iron pipe from entering the first V-shaped groove, the flip surface is concave toward the rotating hole, and the stop surface is convex away from the rotating hole.

[0052] In this embodiment, the flip plate has a flip surface for lifting a ductile iron pipe, and no stop surface is provided. At this time, a lifting mechanism is provided on the right side of the first V-shaped groove. The lifting mechanism includes a driving cylinder and a push rod connected to the telescopic end of the driving cylinder. Each time the push rod is lifted, only one ductile iron pipe can pass through the push rod and enter the first V-shaped groove.

[0053] Embodiment 3 of an automatic zinc spraying device provided by the present invention: The main difference between it and Example 1 is: In Example 1, two centering mechanisms are provided and the two centering mechanisms are symmetrically disposed on the front and rear sides of the first bracket, and the centering mechanisms include a centering telescopic cylinder and a centering plate connected to the telescopic end of the centering telescopic cylinder.

[0054] In this embodiment, the centering mechanism includes two baffles arranged on the front and rear sides of the first bracket, and the two baffles are arranged to be inclined in similar directions from right to left, so that the position of the ductile iron pipe can be adjusted by the baffles during the process of the ductile iron pipe rolling to the first V-shaped groove.

[0055] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and the like, which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0056] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the technical solution of the present invention.

[0057] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. An automatic zinc spraying device, characterized in that: It includes a first bracket, a centering mechanism, a flipping mechanism, a second bracket, a socket grinding mechanism, a third bracket, a top mechanism, a zinc spraying mechanism and a control terminal. The first bracket is used for loading, with the length direction of the first bracket as the left-right direction. The second bracket is arranged on the left side of the first bracket. The flipping mechanism is used to transport the ductile iron pipe on the first bracket to the second bracket. The centering mechanism is arranged on the right side of the flipping mechanism to correct the position of the ductile iron pipe. The socket grinding mechanism is arranged corresponding to the second bracket to grind the socket of the ductile iron pipe on the second bracket; the top mechanism is arranged corresponding to the third bracket, and the top mechanism is used to tighten the ductile iron pipe transported from the second bracket to the third bracket. The zinc spraying mechanism is arranged corresponding to the top mechanism to spray zinc on the ductile iron pipe tightened by the top mechanism; the control terminal is used to control the start and stop of the centering mechanism, the flipping mechanism, the second bracket, the socket grinding mechanism, the third bracket, the top mechanism and the zinc spraying mechanism.

2. An automatic zinc spraying device according to claim 1, characterized in that: The first bracket includes two first support rods arranged at intervals along the front-to-back direction, and the upper end surfaces of the first support rods are arranged tilted downward from right to left. The left ends of the first support rods are each provided with a first V-shaped groove, and the first V-shaped groove is adapted to the size of the ductile iron pipe.

3. An automatic zinc spraying device according to claim 2, characterized in that: The flipping mechanism includes a flipping motor and a rotating rod coaxially connected to the output shaft of the flipping motor and extending in the front-to-back direction. The rotating rod is provided with at least two flipping plates. The flipping plates are provided with rotating holes adapted to the rotating rod and the flipping plates are fixed on the rotating rod. The flipping plates have a flipping surface for lifting a ductile iron pipe and a stopping surface for stopping the ductile iron pipe from entering the first V-shaped groove. The flipping surface is concave toward the rotating hole, and the stopping surface is convex toward the direction away from the rotating hole.

4. An automatic zinc spraying device according to claim 3, characterized in that: Two centering mechanisms are provided and are symmetrically arranged at the front and rear sides of the first bracket. The centering mechanisms include a centering telescopic cylinder and a centering plate connected to the telescopic end of the centering telescopic cylinder.

5. An automatic zinc spraying device according to any one of claim 4, characterized in that: The second bracket includes two second support rods, each of which is provided with a second V-shaped groove, the second V-shaped groove is adapted to the size of the ductile iron pipe and the second V-shaped groove is located on the left side of the flipping mechanism so that the flipping mechanism can flip the ductile iron pipe into the second V-shaped groove.

6. An automatic zinc spraying device according to claim 5, characterized in that: The socket grinding mechanism is arranged corresponding to the second V-shaped groove to grind the ductile iron pipe in the second V-shaped groove.

7. An automatic zinc spraying device according to claim 6, characterized in that: A support plate is provided below the third bracket, and the support plate is movable on the ground along the left-right direction. The third bracket is arranged on the support plate and can be raised and lowered along the up-down direction. The third bracket includes two third support rods arranged at intervals along the front-to-back direction, and the third support rods are provided with a plurality of third V-shaped grooves arranged at intervals along the left-to-right direction.

8. An automatic zinc spraying device according to claim 7, characterized in that: The top mechanism is arranged corresponding to the third V-shaped groove.

9. An automatic zinc spraying device according to claim 8, characterized in that: A gantry frame extending in the front-rear direction is also arranged above the top mechanism, and the zinc spraying mechanism is arranged on the gantry frame for movement in the front-rear direction.

10. An automatic zinc spraying device according to claim 9, characterized in that: It also includes a supporting mechanism, which has two supporting mechanisms and is symmetrically distributed on the front and rear sides of the third bracket along the front and rear directions. The supporting mechanism includes a supporting motor and a supporting member connected to the output shaft of the supporting motor. The supporting member is provided with a top plate, and a limiting groove adapted to the ductile iron pipe is opened at the upper end of the top plate.

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