Nodular cast iron pipe inside and outside spraying bin group and bin cover opening and closing method

Abstract

The invention relates to a nodular cast iron pipe inside and outside spraying bin group and a bin cover opening and closing method, and the nodular cast iron pipe inside and outside spraying bin group comprises a working bin which is a cavity with the top open and the periphery closed; a handling station; the bin cover is located at the top of the working bin, and wheel bodies capable of supporting the bin cover to slide horizontally are arranged at the bottom of the bin cover; the multiple sets of working bins are arranged in series, and a through rail is arranged at the top of each working bin. Connecting assemblies capable of disconnecting or connecting the adjacent bin covers are arranged between the adjacent bin covers on the multiple sets of working bins. One ends of the multiple groups of bin covers are provided with second drivers, and the multiple groups of bin covers or a single bin cover can be dragged to horizontally move by the distance not smaller than the distance for allowing the nodular cast iron pipes to be transported outwards in the working bins, and the beneficial effects are that the slidable bin covers are arranged at the tops of the multiple groups of working bins, and by means of the second drivers, opening of any bin cover is achieved; and the sealing states of other bin covers are not changed.

Description

Technical Field

[0001] The invention belongs to the technical field of the whole coating processing technology of ductile iron pipes, and particularly relates to an inner and outer spraying chamber group for ductile iron pipes. Background Art

[0002] The ductile iron pipe coating line is a post-production process for ductile iron pipes. Its purpose is to improve the quality and performance of the pipes, ensuring they meet relevant standards and usage requirements. This line primarily performs surface treatment, quality inspection, and functional enhancement on the annealed pipes, ensuring they meet corrosion protection, sealing, and mechanical performance standards. Anti-corrosion treatment enhances the pipe's corrosion resistance through processes such as zinc spraying and asphalt coating.

[0003] The inventors found in their research on the prior art that:

[0004] In the internal and external spray anti-corrosion treatment, a partition chamber similar to the health pool station is required, mainly to facilitate the collection of waste gas during the anti-corrosion process and the temperature requirements of certain processes, and to improve the thermal insulation performance of the station. Due to the assembly line operation requirements of the ductile iron pipe production line, multiple stations are required to perform internal and external anti-corrosion operations simultaneously, and a hoistable closed door is installed at the top. At this time, a problem is faced. In a section of space on a group of production lines, there is often only one operating hoist. Therefore, in this operating section, the operating device needs to be used frequently, and it is necessary to hoist the cover body and the ductile iron pipes that need to be operated. Space needs to be reserved for the placement of the cover body. This hinders the progress of the overall assembly line operation.

[0005] Therefore, there is an urgent need for a technical solution that overcomes the current busyness of the spreader and restricts the process of assembly line operation. Summary of the Invention

[0006] In order to overcome the technical problem in the prior art that the sling needs to lift both the cover and the ductile iron pipe in the inner and outer spraying sections, which affects the rhythm of the assembly line operation, the inventor designed a continuous spray chamber group and set a one-piece cover on the top that can open and close a certain chamber separately. This ensures that the sling no longer needs to participate in the lifting of the cover separately and can handle the operation of the ductile iron pipe separately. At the same time, this cover can also achieve the device and process purpose of relative insulation of the unopened chamber and isolation from the outside world.

[0007] The technical solution adopted in the present invention is:

[0008] A ductile iron pipe internal and external spray chamber assembly, comprising:

[0009] The working chamber is a chamber with an open top and closed sides;

[0010] Disposal stations, with more than one group located inside the working bin, are used for processing the inner and outer walls of the ductile iron pipes. The disposal stations lift and support the ductile iron pipes so that the ductile iron pipes can be transported out from the top of the working bin with the help of lifting tools.

[0011] The bin cover is located at the top of the working bin, and the bottom is provided with wheel bodies that can support the horizontal sliding of the bin cover.

[0012] Multiple groups of the working bins are arranged in series, and a through track is provided at the top.

[0013] A connecting component that can disconnect or connect adjacent bin covers is provided between adjacent bin covers on multiple groups of the working bins.

[0014] A second drive is provided at one end of multiple groups of the bin covers, which can drag multiple groups or a single bin cover to translate a distance not less than the allowable external transport distance of the ductile iron pipes in the working bin.

[0015] Further,

[0016] The track is extended on one side to form a rack track.

[0017] The second drive is a gear drive, and the second drive cooperates with the rack track to drive the movement of the bin cover.

[0018] Further, the connecting component includes:

[0019] The fixing part is a convex part fixed on one group of adjacent bin covers at the contact part between adjacent bin covers.

[0020] The supporting part is a convex part provided on another group of bin covers in the same direction as the fixing part.

[0021] The hook is fishhook-shaped, the tail is hinged on the supporting part, and it can rotate towards the fixing part. The hook tip of the hook can hook the fixing part to link adjacent bin covers.

[0022] The first drive is a linear drive device, one end is hinged on the supporting part, and the other end is hinged on the hook.

[0023] The hook disconnects or connects adjacent bin covers with the help of the first drive.

[0024] Further,

[0025] The hook is C-shaped fishhook-shaped.

[0026] Further,

[0027] The bin cover close to the second drive is supported by the second drive and the wheel bodies provided at the bottom of the bin cover.

[0028] Further,

[0029] Dead stops are provided on one side of the second drive and away from the second drive side to limit the movement distance of the bin cover.

[0030] Further,

[0031] The connection component is a magnetic attraction connection device.

[0032] Further,

[0033] The number of groups of the multiple working bins is greater than or equal to three.

[0034] Further,

[0035] Flexible skirts are provided on both sides of the movement direction of the bin cover, and the length of the skirts is greater than or equal to the distance from the bottom of the bin cover to the top of the track.

[0036] And a method for opening and closing a bin cover in a ductile iron pipe internal and external spraying bin chamber group, including

[0037] The above-mentioned ductile iron pipe internal and external spraying bin chamber group;

[0038] And the following usage method:

[0039] The bin cover towed in series or separated by the second drive;

[0040] When the bin cover at the far end relative to the second drive needs to be opened, the connection components between the bin cover to be opened and all adjacent bin covers in the direction towards the second drive are in a connected state;

[0041] The second drive drives the bin cover to be opened to move, and open and close to a distance allowing the ductile iron pipe to be transported out;

[0042] When the bin cover at the far end relative to the second drive needs to be closed and the bin cover at the first position in sequence in the direction towards the second drive needs to be opened, the connection component between the bin cover at the far end relative to the second drive and the bin cover at the first position in sequence in the direction towards the second drive is disconnected, and the second drive towes the remaining bin covers to move;

[0043] When the number of groups of the multiple working bins is greater than three, the opening method of the middle bin cover refers to the above method;

[0044] When the bin cover close to the second drive needs to be opened, the connection components between the adjacent bin covers in the direction away from the second drive are disconnected, and the second drive separately towes the bin cover close to the second drive to move;

[0045] Through the above method, the second drive is utilized to open and close all the hatch covers on multiple groups of the working bins.

[0046] The beneficial effects of the present invention compared with the prior art are as follows: 1) A technical solution is provided in which slidable hatch covers are arranged on the tops of multiple groups of working bins, and with the aid of the second drive, any hatch cover can be opened while the other hatch covers remain in the closed state; 2) By using the design of the slidable hatch covers, the hoisting of the hatch covers can be directly realized at the corresponding workstations without the participation of hoisting equipment, directly doubling the production line efficiency; 3) A new method for opening the slidable hatch covers applicable to the ductile iron pipe production line is proposed. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is the front view of the inner and outer spraying chamber group of the ductile iron pipe in the specific embodiment of the present invention;

[0048] Figure 2 It is the enlarged view of the detailed structure of the connecting component in the specific embodiment of the present invention;

[0049] Among them, the markings are as follows:

[0050] 100 - working bin; 110 - disposal station;

[0051] 200 - hatch cover; 210 - track

[0052] 300 - connecting component; 310 - fixing part; 320 - hook; 330 - supporting part; 340 - first drive;

[0053] 400 - second drive. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0054] The technical solutions in the embodiments are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0055] In order to overcome the technical problem in the prior art that the sling needs to lift both the cover and the ductile iron pipe in the inner and outer spraying sections, which affects the rhythm of the assembly line operation, the inventor designed a continuous spray chamber group and set a one-piece cover on the top that can open and close a certain chamber separately. This ensures that the sling no longer needs to participate in the lifting of the cover separately and can handle the operation of the ductile iron pipe separately. At the same time, this cover can also achieve the device and process purpose of relative insulation of the unopened chamber and isolation from the outside world.

[0056] See also Figure 1 and 2 The specific embodiment is: a ductile iron pipe internal and external spray chamber assembly, comprising:

[0057] The work chamber 100 is a chamber with an open top and sealed sides. It's important to note that this closure isn't completely sealed. If the ductile iron pipes are arranged perpendicular to the production line, a lateral opening should be provided to allow access for the spraying equipment. Of course, if the spraying equipment is only installed inside the work chamber 100, a corresponding opening may not be required. Ductile iron pipes are typically arranged perpendicular to the production line, but parallel placement is also possible, though this increases the line length and the length of the transport.

[0058] One or more treatment stations 110 are located in the working chamber 100 to process the inner and outer walls of the ductile iron pipe. The treatment stations 110 lift the ductile iron pipe so that it can be transported from the top of the working chamber 100 with the help of lifting tools. The treatment stations 110 can be equipped with a supporting wheel device according to the requirements of the spraying process to facilitate the rotation of the ductile iron pipe. If only internal spraying is required, it can be set as a V-support.

[0059] The bin cover 200 is located on the top of the working bin 100, and a wheel body is provided at the bottom to support the horizontal sliding of the bin cover 200; Figure 1 In this embodiment, the cover 200 corresponds to only one working chamber 100. For multiple working chambers 100, the upper cover 200 is a split structure. This design, one of the key inventive concepts, utilizes split sections for segmented opening and closing, ensuring that even when the unopened section is in motion, it remains sealed relative to the working chamber 100. This maintains the original process requirements while reducing the lifting device workload by half.

[0060] A plurality of groups of the working chambers 100 are arranged in series, and a through track 210 is provided on the top; the series arrangement described in this embodiment is a straight line arrangement in parallel and close proximity.

[0061] Connecting components 300 are provided between adjacent compartment covers 200 on the plurality of groups of working compartments 100, which can disconnect or connect adjacent compartment covers 200;

[0062] A second drive 400 is provided at one end of the plurality of groups of bin covers 200, which can drag the plurality of groups or a single bin cover 200 to move horizontally not less than the distance allowed for the ductile iron pipe in the working bin 100 to be transported outwards. Figure 1 There are many driving modes for the second drive 400. It can be a winch-type drive, which uses gravity to provide vertical support when reversed and then drives horizontally. It can also be a technical solution as in the following embodiment.

[0063] In some embodiments, in order to improve the control accuracy, the gear rack is used to coordinate with the encoder in the traditional motor drive to achieve the control of the travel distance.

[0064] The track 210 is extended on one side to form a rack track;

[0065] The second drive 400 is a gear drive that cooperates with the rack track to drive the movement of the hopper cover 200. In this embodiment, the existing track 210 needs to be extended horizontally, which may encroach on the length of the production line. The lower part of this encroached space can be set up as a buffer space, but the upper part will interfere with the lifting.

[0066] In some embodiments, a structural form of a connection component 300 is provided. Figure 2 , the connection component 300 includes:

[0067] The fixing portion 310 is a protrusion fixed on a group of the bin covers 200 and is provided at the contact position between the adjacent bin covers 200;

[0068] The supporting portion 330 is a protrusion provided on another set of the compartment covers 200 and extending in the same direction as the fixing portion 310;

[0069] The hook 320 is in the shape of a fishhook, with its tail hinged to the support portion 330 and capable of rotating toward the fixing portion 310 . The hook tip of the hook 320 can hook the fixing portion 310 , thereby causing the adjacent compartment covers 200 to move in conjunction with each other.

[0070] The first drive 340 is a linear drive device, one end of which is hinged to the support portion 330 and the other end of which is hinged to the hook 320;

[0071] The hook 320 connects or disconnects the adjacent compartment covers 200 by means of the first drive 340 .

[0072] See also Figure 2 In some embodiments, the length of the hook 320 is shortened, leaving only the hook bend without the hook handle.

[0073] The hook 320 is in the shape of a C-shaped fishhook.

[0074] In some other embodiments, to reduce the length of the overall device, please refer to Figure 2 ,

[0075] The lid 200 of the bin near the second drive 400 is supported jointly by the second drive 400 and the wheel body provided at the bottom of the lid 200.

[0076] In some other embodiments, on the basis of driving at a distance by means of the second drive 400, redundant safety measures are added.

[0077] Dead stops are provided on one side of the second drive 400 and on the side away from the second drive 400 to limit the movement distance of the lid 200. In this embodiment, the dead stop may be a limit without distance control or a safety measure with distance control.

[0078] In some other embodiments,

[0079] The connection component 300 is a magnetic attraction connection device.

[0080] In some other embodiments, preferably,

[0081] The number of groups of the plurality of working bins 100 is greater than or equal to three.

[0082] In some embodiments, in order to improve the heat preservation effect,

[0083] Flexible skirts are provided on both sides in the movement direction of the lid 200, and the length of the skirts is greater than or equal to the distance from the bottom of the lid 200 to the top of the track 210. It should be noted that in the overall technical solution, it is not completely defined that the inside of the bin in the closed state is airtight. Only a closed space is provided to meet the process requirements, and if the process has requirements for temperature, the closed space can also achieve the effect of confidentiality. Because the curing temperature of the ductile iron pipe coating is generally not high, the inventor found through experiments that the current technical solution can meet the requirements.

[0084] In order to cooperate with the operation of the lid 200, a process method is proposed:

[0085] A method for opening and closing the lid of a ductile iron pipe internal and external spraying bin group, including

[0086] The ductile iron pipe internal and external spraying bin group in the above-mentioned embodiment;

[0087] And the following usage method:

[0088] The lid 200 that is towed in series or separated by the second drive 400;

[0089] When the hatch cover 200 relative to the distal end of the second drive 400 needs to be opened, the connection components 300 between the hatch cover 200 to be opened and all adjacent hatch covers 200 in the direction towards the second drive 400 are in a connected state;

[0090] The second drive 400 drives the hatch cover 200 to be opened to move and open and close to a distance allowing the ductile iron pipe to be transported outwards;

[0091] When the hatch cover 200 relative to the distal end of the second drive 400 needs to be closed and the first hatch cover 200 in sequence in the direction towards the second drive 400 needs to be opened, the connection component 300 between the hatch cover 200 relative to the distal end of the second drive 400 and the first hatch cover 200 in sequence in the direction towards the second drive 400 is disconnected, and the second drive 400 pulls the remaining hatch covers 200 to move;

[0092] When the number of groups of the multiple working bins 100 is greater than three, the opening method of the middle hatch cover 200 refers to the above method;

[0093] When the hatch cover 200 close to the second drive 400 needs to be opened, the connection components 300 between the adjacent hatch covers 200 in the direction away from the second drive 400 are disconnected, and the second drive 400 separately pulls the hatch cover 200 close to the second drive 400 to move;

[0094] Through the above method, the opening and closing of all hatch covers 200 on the multiple working bins 100 are realized by using the second drive 400.

[0095] Specifically, during operation: With the aid of a lifting tool, the ductile iron pipe enters the working bin 100 for corresponding inner and outer wall coating process operations. Multiple ductile iron pipes in multiple working bins 100 are carried out synchronously, and the ductile iron pipes enter separately in an opening and closing manner respectively. When the ductile iron pipe in the inner and outer wall spraying process reaches the process requirements and needs to be transferred to the next station, the hatch cover 200 on the upper part of the working bin 100 to be transferred is separately opened, and the ductile iron pipe is lifted out by the lifting device. During this operation, the other hatch covers 200 remain closed. By means of the above method and using the design of the slidable hatch cover, the hatch cover hoisting without the participation of hoisting equipment can be directly realized at the corresponding station, directly doubling the production line efficiency.

[0096] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A ductile iron pipe internal and external spraying chamber group, characterized in that, Comprising: A working chamber (100), which is a chamber with an open top and a closed peripheral side; A disposal station (110), with more than one group located inside the working chamber (100), for processing the inner and outer walls of the ductile iron pipe. The disposal station (110) holds up the ductile iron pipe so that the ductile iron pipe can be transported out from the top of the working chamber (100) by means of a lifting tool; A chamber cover (200), located at the top of the working chamber (100), with wheels at the bottom that can support the horizontal sliding of the chamber cover (200); Multiple groups of the working chambers (100) are arranged in series, and a through track (210) is provided at the top; A connecting component (300) that can disconnect or connect adjacent chamber covers (200) is provided between adjacent chamber covers (200) on multiple groups of the working chambers (100); A second drive (400) is provided at one end of multiple groups of the chamber covers (200), which can drag multiple groups or a single chamber cover (200) to translate a distance not less than the allowable transportation distance of the ductile iron pipe in the working chamber (100).

2. The inner and outer spraying chamber group of ductile iron pipes according to claim 1, characterized in that The track (210) is extended on one side to be provided with a rack track; The second drive (400) is a gear drive, and the second drive (400) cooperates with the rack track to drive the movement of the chamber cover (200).

3. The internal and external spraying chamber group of the ductile iron pipe according to claim 1, characterized in that, The connecting component (300) includes: A fixing part (310), which is a raised part fixed on one group of adjacent chamber covers (200) at the contact part between adjacent chamber covers (200); A supporting part (330), which is a raised part provided on the other group of chamber covers (200) in the same direction as the fixing part (310); A hook (320), which is fishhook-shaped, with the tail hinged on the supporting part (330), can rotate towards the fixing part (310), and the hook tip of the hook (320) can hook the fixing part (310) to make adjacent chamber covers (200) linked; A first drive (340), which is a linear drive device, with one end hinged on the supporting part (330) and the other end hinged on the hook (320); The hook (320) disconnects or connects adjacent chamber covers (200) by means of the first drive (340).

4. The inner and outer spraying chamber group of ductile iron pipes according to claim 3, characterized in that The hook (320) is C-shaped fishhook-shaped.

5. The inner and outer spraying chamber group of ductile iron pipes according to claim 1, characterized in that The chamber cover (200) close to the second drive (400) is supported by the second drive (400) and the wheels provided at the bottom of the chamber cover (200) together.

6. The inner and outer spraying chamber group of ductile iron pipes according to claim 1, characterized in that Dead stops are provided on one side of the second drive (400) and on the side far from the second drive (400) to limit the movement distance of the chamber cover (200).

7. The inner and outer spraying chamber group of ductile iron pipes according to claim 1, characterized in that The connecting component (300) is a magnetic attraction connecting device.

8. The inner and outer spraying chamber group of ductile iron pipes according to claim 1, characterized in that The number of groups of the multiple working chambers (100) is greater than or equal to three.

9. The inner and outer spraying chamber group of ductile iron pipes according to claim 1, characterized in that Flexible skirts extending downward are provided on both sides of the moving direction of the chamber cover (200), and the length of the skirts is greater than or equal to the distance from the bottom of the chamber cover (200) to the top of the track (210).

10. A method for opening and closing the bin cover in the inner and outer spraying bin group of ductile iron pipes, characterized in that, Comprising The inner and outer spraying chamber group of ductile iron pipes according to any one of claims 1-9; And the following usage method: The chamber cover (200) that is towed in series or separated by the second drive (400); When the chamber cover (200) at the far end relative to the second drive (400) needs to be opened, the connecting component (300) between the chamber cover (200) to be opened and all adjacent chamber covers (200) in the direction towards the second drive (400) is in a connected state; The second drive (400) drives the chamber cover (200) to be opened to move, and open and close to a distance allowing the ductile iron pipe to be transported out; When the chamber cover (200) at the far end relative to the second drive (400) needs to be closed and the chamber cover (200) at the first position in sequence in the direction towards the second drive (400) needs to be opened, the connecting component (300) between the chamber cover (200) at the far end relative to the second drive (400) and the chamber cover (200) at the first position in sequence in the direction towards the second drive (400) is disconnected, and the second drive (400) towes the remaining chamber covers (200) to move; When the number of groups of the multiple working chambers (100) is greater than three, the opening method of the middle chamber cover (200) refers to the above method; When the chamber cover (200) close to the second drive (400) needs to be opened, the connecting component (300) between the adjacent chamber covers (200) in the direction away from the second drive (400) is disconnected, and the second drive (400) separately towes the chamber cover (200) close to the second drive (400) to move; By the above method, the opening and closing of all chamber covers (200) on the multiple working chambers (100) are realized by using the second drive (400).

Images