CN112247078A - Shell mold air drying system capable of detecting faults and detection method thereof - Google Patents
Shell mold air drying system capable of detecting faults and detection method thereof Download PDFInfo
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- CN112247078A CN112247078A CN201910660985.3A CN201910660985A CN112247078A CN 112247078 A CN112247078 A CN 112247078A CN 201910660985 A CN201910660985 A CN 201910660985A CN 112247078 A CN112247078 A CN 112247078A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/12—Treating moulds or cores, e.g. drying, hardening
Abstract
The invention relates to a shell mold air drying system capable of detecting faults and a detection method thereof, which comprises a controller, a mechanical arm, a weighing platform and an air drying device, wherein the air drying device is used as an automatic shell mold air drying device, and the controller is matched with the weighing platform to detect the faults.
Description
Technical Field
The invention relates to a shell mold air drying system, in particular to a shell mold air drying system capable of detecting faults and a detection method thereof.
Background
When a metal product is produced by a casting (Lost-wax casting) method, a shell mold is formed on the surface of a wax mold by manufacturing the wax mold, dipping slurry, sand pouring and air drying, the shell mold has a certain thickness, then the wax mold is melted and flowed out by heating, the shell mold is sintered, and the subsequent casting can be carried out by using the shell mold.
However, when manually managing multiple batches of shell molds, not only the production efficiency is low due to the transportation process, but also it is not easy to accurately master the manufacturing parameters such as the air drying time, the temperature and humidity of the air drying site, or there is a problem of error planting records, so that the shell molds of different batches may have different sizes or structural strengths due to different air drying time, temperature and humidity, and the like, which may result in inconsistent quality of the products cast by the shell molds.
In addition, in the above process, the operator cannot manage whether the efficiency of the air-drying effect provided by the air-drying place on the shell mold changes, and therefore cannot accurately grasp the air-drying time, in other words, the air-drying effect is performed for the same time length in different time periods, and the drying degree of the shell mold may be different.
Disclosure of Invention
In order to solve the problems of low production efficiency and difficult quality control of an artificial mode used in an air drying process in a casting technology, the invention provides an automatic shell mold air drying device.
The invention provides a shell mold air drying system capable of detecting faults, which comprises:
a controller;
the mechanical arm is electrically connected with the controller and has a rotation range;
the weighing platform is electrically connected with the controller, and the local part of the weighing platform is positioned in the rotation range of the mechanical arm; and
an air drying device, which is arranged at intervals with the mechanical arm and the weighing platform and comprises
The closed outer cover body is provided with an accommodating space and at least one window, the accommodating space is formed inside the closed outer cover body, and the at least one window penetrates through one side of the closed outer cover body and is positioned in the rotation range of the mechanical arm, so that the mechanical arm can extend into the accommodating space through the at least one window;
the cabinet frame is arranged in the accommodating space of the closed outer cover body;
a transmission module, which is connected with the cabinet frame and comprises a driving component, at least one transmission component, a main connecting component, a plurality of fluted discs and two chains, wherein the driving component is arranged on one side of the cabinet frame, at least one transmission component is connected with two sides of the cabinet frame, the main connecting component is connected with the driving component and at least one transmission component, the fluted discs are pivoted on two sides of the cabinet frame at intervals, each fluted disc is linearly opposite to the other fluted disc, the fluted disc adjacent to at least one transmission component is connected with at least one transmission component and is driven to synchronously rotate, and the two chains are respectively meshed with the fluted discs on one side of the cabinet frame to form two linearly opposite circulation paths;
the hanging frames are pivoted with the two chains of the transmission module and provided with at least one hanging part, and after the mechanical arm extends into the air drying device, a shell mold can be hung on or taken down from the hanging part of the hanging frame close to at least one window;
the wireless communication module is provided with a reader and a plurality of wireless identification units, the reader is arranged on the cabinet frame and is electrically connected with the controller, the plurality of wireless identification units are respectively arranged on one of the hanging frames, and the reader can be connected with the adjacent wireless identification units through wireless signals; and
the fans are arranged on the cabinet frame at intervals.
The shell mold air-drying system capable of detecting faults comprises at least one slurry barrel and at least one sand dipping device, wherein the at least one slurry barrel and the at least one sand dipping device are arranged at intervals and are respectively and locally located in the rotation range of the mechanical arm.
Further, in the above air-drying system for the shell mold capable of detecting the failure, the cabinet frame is provided with an even number of pairs of rails, each pair of rails is arranged on the same height of two sides of the cabinet frame in parallel and is respectively arranged between two fluted discs, and the two chains respectively slide between the rails.
Further, the above-mentioned shell mold air-drying system capable of detecting faults, wherein the cabinet frame is provided with four pairs of rails, and the two chains form a winding-shaped circulation path.
Still further, above-mentioned shell mould air-dry system that can detect trouble, wherein this transmission module is equipped with two transmission assembly and a pair coupling assembling, and two these transmission assemblies are connected and can drive the fluted disc rotation that connects in step through this pair coupling assembling.
Still further, in the above air-drying system for a shell mold capable of detecting a failure, the reader of the wireless communication module and the plurality of wireless identification units are connected through any one of a two-dimensional barcode, a three-dimensional barcode, a QR code, a radio frequency tag, and a near field communication tag.
Preferably, in the above system for drying shell mold capable of detecting failure, the frame has a protrusion, the protrusion is disposed on one side of the frame facing at least one of the windows, and two sides of the protrusion are respectively provided with two fluted discs of the plurality of fluted discs, so that the two chains can sequentially convey the hangers to a position close to at least one of the windows when the chains are circularly operated.
Preferably, the above shell mold seasoning system capable of detecting failure wherein the drive assembly comprises a motor.
A detection method for utilizing the shell mold air drying system capable of detecting faults comprises the following operation steps:
taking a shell mold off one of the hangers of the air drying device, moving the shell mold to the weighing platform for weighing, and measuring a first numerical value;
moving the shell mold to at least one slurry barrel for slurry dipping operation, then moving to the weighing platform again for weighing, and measuring a second numerical value;
moving the shell mold to at least one sand dipping device for sand dipping operation, then moving to the weighing platform again for weighing, and measuring a third numerical value;
hanging the shell mold back to the hanging frame, and performing air drying operation again;
taking out the shell mold, weighing, and measuring the weight after air drying again; and
and calculating and comparing by using the controller.
By means of the technical characteristics, the air drying device serves as an automatic shell mold air drying device, and the method for detecting faults by matching the controller with the weighing platform can enable shell molds of different batches to rotate circularly and air-dry without manpower, and can detect whether the air drying device has faults or is abnormal according to the air drying condition in each air drying operation, so that the problems of low production efficiency and difficult quality control caused by manual mode in the prior art can be solved, and the shell mold air drying system and the detection method thereof capable of detecting faults are provided.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for facilitating the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. Those skilled in the art, having the benefit of the teachings of this invention, may choose from the various possible shapes and proportional sizes to implement the invention as a matter of case.
FIG. 1 is a top view of the preferred embodiment of the present invention.
Fig. 2 is a perspective view of the seasoning apparatus according to the preferred embodiment of the present invention.
Fig. 3 is another perspective view of the seasoning apparatus according to the preferred embodiment of the present invention.
Fig. 4 is a perspective view of the cabinet frame and the transmission module of the seasoning apparatus according to the preferred embodiment of the present invention.
FIG. 5 is a partial enlarged view of FIG. 4 illustrating a preferred embodiment of the present invention.
Fig. 6 is another perspective view of the cabinet frame and the transmission module of the seasoning apparatus according to the preferred embodiment of the present invention.
FIG. 7 is an enlarged view of a portion of FIG. 6 in accordance with a preferred embodiment of the present invention.
Fig. 8 is a side sectional view of an airing device according to a preferred embodiment of the present invention.
Fig. 9 is a perspective view of a rack and a shell mold of the air drying device according to the preferred embodiment of the invention.
FIG. 10 is an enlarged view of a portion of FIG. 3 in accordance with a preferred embodiment of the present invention.
Fig. 11 is a schematic diagram illustrating a connection relationship between a controller and a wireless communication module according to a preferred embodiment of the invention.
FIG. 12 is a block diagram illustrating the operation steps of the method for detecting faults according to the present invention.
Detailed Description
The details of the present invention can be more clearly understood in conjunction with the accompanying drawings and the description of the embodiments of the present invention. However, the specific embodiments of the present invention described herein are for the purpose of illustration only and are not to be construed as limiting the invention in any way. Any possible variations based on the present invention may be conceived by the skilled person in the light of the teachings of the present invention, and these should be considered to fall within the scope of the present invention.
In order to understand the technical features and practical effects of the present invention in detail and to realize the same according to the content of the specification, the following detailed description of the preferred embodiments is further illustrated in the drawings:
the present invention is a shell mold air drying system capable of detecting faults, and the preferred embodiment thereof is shown in fig. 1 and 11, and comprises a controller 10, a robot arm 20, a weighing platform 30, at least one slurry barrel 40, at least one sand dipping device 50 and an air drying device 60, wherein:
the controller 10 is used for controlling the robot 20, timing and calculating values; the robot 20 is electrically connected to the controller 10, and the robot 20 has a rotation range R; the weighing platform 30 is electrically connected to the controller 10, so that the controller 10 can record and calculate the value read by the weighing platform 30, and the weighing platform 30 is partially located within the rotation range R of the robot 20, so that the robot 20 can extend above the weighing platform 30.
The at least one slurry barrel 40, the robot arm 20 and the weighing platform 30 are arranged at intervals, part of the at least one slurry barrel 40 is positioned in the rotation range R of the robot arm 20, and slurry is stored in the at least one slurry barrel 40, so that the robot arm 20 can immerse a wax pattern into the at least one slurry barrel 40 for slurry dipping operation; the at least one sand dipping device 50 is spaced from the robot arm 20, the weighing platform 30 and the at least one slurry barrel 40, and the at least one sand dipping device 50 is partially located within the rotation range R of the robot arm 20, and the at least one sand dipping device 50 is a floating sand machine or a sand spraying machine, so that after the robot arm 20 finishes the slurry dipping operation on the wax pattern at the at least one slurry barrel 40, the wax pattern is stretched into the at least one sand dipping device 50 to perform the sand dipping operation, so that the surface of the wax pattern is dipped with the pattern sand, and a shell mold 80 is formed.
As shown in fig. 1, the air drying device 60 is disposed at an interval from the robot arm 20, the weighing platform 30, the at least one mortar bucket 40 and the at least one sand dipping device 50, and the air drying device 60 includes a closed outer cover 61, a cabinet 62, a transmission module 63, a plurality of racks 64, a wireless communication module 65 and a plurality of fans 66, wherein:
as shown in fig. 1 to 3, the closed outer housing 61 has an accommodating space and at least one window 611, the accommodating space is formed inside the closed outer housing 61, the at least one window 611 is disposed through a side surface of the closed outer housing 61 to communicate the inner side and the outer side of the closed outer housing 61, and the at least one window 11 can be closed to maintain the closed outer housing 61 in a closed state, further, the at least one window 611 is located within the rotation range R of the robot arm 20, so that the robot arm 20 can extend into the accommodating space through the at least one window 611; in the preferred embodiment, the closed housing 61 has two windows 611, and the two windows 611 are disposed on the same side of the closed housing 61 at intervals, and the robot arm 20 can extend into the accommodating space through any one of the windows 611.
Referring to fig. 2, 4, 5 and 8, the cabinet frame 62 is disposed in the accommodating space of the closed outer cover 61 and is a rectangular body, the cabinet frame 62 is provided with a plurality of pairs of rails 621 and a protruding portion 622, wherein each pair of rails 621 is disposed on two sides of the cabinet frame 20 in parallel and located at the same height, the plurality of pairs of rails 621 are disposed at intervals along the height direction of the cabinet frame 62, and the plurality of pairs of rails 621 are even pairs, as shown in fig. 5 and 8, in the preferred embodiment, the cabinet frame 62 is provided with four pairs of rails 621, the four rails 621 are disposed at intervals along the height direction of the cabinet frame 62, and each rail 621 is a C-shaped steel; as shown in fig. 3, 4 and 8, the protrusion 622 is protruded from one side of the cabinet frame 62 facing the at least one window 611 of the closed outer cover 61, and the protrusion 622 includes two brackets respectively disposed on the left and right sides of the cabinet frame 62.
Referring to fig. 4 to 7, the transmission module 63 is connected to the cabinet frame 62, the transmission module 63 includes a driving assembly 631, at least one transmission assembly 632, a main connection assembly 633, a plurality of tooth plates 634 and two chains 635, wherein the driving assembly 631 is disposed at a bottom of the cabinet frame 62 at a side away from the protrusion 622, and the driving assembly 631 includes a motor 638 capable of providing a driving force; the at least one transmission assembly 632 is connected to a side of the cabinet frame 62 away from the protruding portion 622, the at least one transmission assembly 632 is provided with two transmission blocks 636 and a transmission rod 637, the two transmission blocks 636 are respectively arranged at positions of two sides of the cabinet frame 62 away from the protruding portion 622 and are arranged in parallel, two ends of each transmission block 636 are respectively linearly opposite to two ends of another transmission block 636, and the transmission rod 637 can be rotatably connected to one end of one pair of the two transmission blocks 636, which is linearly opposite to the other end.
In the preferred embodiment of the present invention, the transmission module 63 includes two transmission assemblies 632, two of the transmission assemblies 632 are disposed in parallel along the height direction, wherein one end of each of the two transmission blocks 636 of the transmission assembly 632 located at the upper layer, which is far away from the corresponding transmission rod 637, is located at one end of each of the pair of rails 621 located at the upper layer, which is far away from the protruding portion 622; the two transmission blocks 636 of the transmission assembly 632 located at the lower layer are located at the ends far away from the corresponding transmission rod 637, and are located at the ends far away from the protruding portion 622 of the third pair of rails 621 from the top to the bottom.
The main connection assembly 633 is connected to the driving assembly 631 and the transmission rod 637 of the at least one transmission assembly 632, so as to transmit the driving force generated by the motor 638 of the driving assembly 631 to the transmission rod 637, and to synchronously drive the two transmission blocks 636 at two ends via the transmission rod 637; the transmission module 63 can optionally have at least one sub-connecting assembly 633A when having a plurality of transmission assemblies 632, wherein the sub-connecting assembly 633A is disposed on the cabinet frame 62 and connected to the transmission rods 637 of the two transmission assemblies 632, so that when the transmission assembly 632 located at the lower layer is driven by the main connecting assembly 633, the power is transmitted to the transmission assembly 632 located at the upper layer through the two transmission rods 637.
As shown in fig. 5 to 8, the plurality of toothed discs 634 are disposed at intervals and pivotally connected to the inner side of the cabinet frame 62, wherein two ends of each rail 621 are respectively provided with one toothed disc 634, two supports of the protruding portion 622 are respectively provided with one toothed disc 634, each toothed disc 634 is linearly opposite to the other toothed disc 634, further, each toothed disc 634 located at an end of the first pair of rails 621 and the third pair of rails 621 far from the protruding portion 622 from top to bottom is connected to the adjacent transmission block 636, so that the driving force of the motor 638 can be further transmitted to each connected toothed disc 634 through each transmission rod 637 and each transmission block 636 to rotate each toothed disc 634.
The two chains 635 are respectively disposed on two sides of the cabinet frame 62, connected to the toothed discs 634 located on the same side, and slide in the tracks 621 located on the same side, the chains 635 are arranged in a meandering manner between the tracks 621 at different heights, and since there are even pairs of the tracks 621, the chains 635 can form a closed circulation path and mesh with the toothed discs 634 on the corresponding side of the protruding portion 622.
When the driving assembly 631 operates, the driving force is transmitted to the two transmission assemblies 632 through the main connection assembly 633 and the sub connection assembly 633A, and is transmitted to the connected toothed discs 634 (four in total) through the transmission blocks 636 of the two transmission assemblies 632, and the driven four-toothed discs 634 respectively drive the two chains 635 to move, and further move along the circular path through the plurality of toothed discs 634.
Referring to fig. 8 to 10, a plurality of hangers 64 are pivotally connected between the two chains 635 at intervals and can circularly move on the cabinet frame 62, each hanger 64 is provided with at least one hanging portion 641, in the preferred embodiment, as shown in fig. 9, each hanger 64 is provided with four hanging portions 641 to hang four shell molds 80 at the same time, and because each hanger 64 is pivotally connected with the two chains 635, each shell mold 80 can keep a downward hanging state under the gravity of the at least one hanging portion 641 and the connected shell mold 80 during the circular movement process.
Referring to fig. 4, 6 and 11, the wireless communication module 65 is connected to the cabinet frame 62 and the plurality of hanging frames 64, and is electrically connected to the controller 10, the wireless communication module 65 includes a reader 651 and a plurality of wireless identification units 652, wherein the reader 651 is connected to the cabinet frame 62 and includes at least one reading head, in the preferred embodiment of the present invention, the reader 651 is disposed at a position of the cabinet frame 62 near the protruding portion 622, and the reader 651 is electrically connected to the controller 10; the plurality of wireless identification units 652 are respectively disposed on the plurality of hangers 64, and when each wireless identification unit 652 moves to approach the reader 651 along with the corresponding hanger 64, the reader 651 can read the manufacturing parameters recorded by the wireless identification unit 652 by using a wireless communication technology, wherein the wireless communication technology may be a two-dimensional barcode, a three-dimensional barcode, a QR code, a Radio-frequency tag (RFID), or a Near-field communication tag (NFC).
Referring to fig. 2, 8 and 10, the fans 66 are disposed on the cabinet frame 62 at intervals, and in the preferred embodiment of the present invention, the fans 66 are disposed on two sides, a middle section of the cabinet frame 62, and a side of the cabinet frame 62 away from the protrusion 622, respectively, so that the fans 66 drive the airflow to circulate in the closed outer cover 61, thereby improving the air drying effect.
By means of the above technical features, a manufacturer can extend the shell mold 80 formed by the slurry dipping operation and the sand dipping operation into the closed outer cover 61 through the two windows 611, hang the shell mold 80 on the hanging frames 64 passing through the protruding portions 622 in batches, and move the hanging frames 64 on the pairs of rails 621 of the cabinet frame 62 in a circulating manner by the operation of the transmission module 63, and achieve the air drying effect by using the air flow driven by the plurality of fans 66.
Further, the closed outer cover 61 allows the manufacturer to accurately record the manufacturing parameters such as the air drying time after reading the wireless identification unit 652 of each hanger 64 via the reader 651 via wireless signals, and allows the operator to accurately convey the specific batch of shell molds 80 to the position of the protrusion 622 of the cabinet frame 62, and then take out the batch of shell molds 80 via the robot arm, so that the technical solution provided by the present invention can save the manpower used in the air drying process, and can accurately maintain the good manufacturing quality, effectively improve the shortcomings of the prior art, and allow the air drying device 60 to be used as an automatic shell mold air drying device.
Preferably, as shown in fig. 12, the shell mold airing system capable of detecting faults provided by the present invention can detect whether the airing device 60 is faulty or not, i.e. whether the airing effect of the airing device 60 maintains the same airing efficiency or not, through the following operation steps:
firstly, the robot 20 takes a shell mold 80 off one of the hangers 64 of the air drying device 60, and moves the shell mold onto the weighing platform 30 for weighing, so as to obtain a first value D1;
the robot 20 moves the shell mold 80 to the at least one slurry tank 40 for slurry dipping operation, and then moves to the weighing platform 30 again for weighing to obtain a second numerical value D2, wherein the weight of the slurry dipped in the shell mold 80 is the second numerical value minus the first numerical value, i.e. D2-D1;
the robot 20 moves the shell mold 80 to the at least one sand dipping device 50 for sand dipping operation, and then moves to the weighing platform 30 again for weighing to obtain a third value D3, wherein the weight of the mold sand dipped on the shell mold 80 is the third value minus the second value, i.e. D3-D2;
the robotic arm hangs the shell mold 80 back to the hanger 64 and starts the driving assembly 631 to perform the air drying operation again for the same time period; and
the shell mold 80 was removed and weighed, and the weight D1' after air drying was measured again.
By means of the above technical features, the controller 10 can calculate D3-D1 'to determine the weight of the water evaporated during the air drying operation, and the controller 10 can calculate (D3-D1')/(D2-D1) to determine the ratio of the weight of the water evaporated to the weight of the slurry during the air drying operation, because several times of slurry dipping, sand dipping, and air drying operations must be repeated on the shell molds 80 during the shell mold manufacturing process, and by comparing the weight of the water evaporated or the weight of the water evaporated to the weight of the slurry after each air drying operation, it can be known whether the air drying efficiency of the air drying device 60 is reduced, if the weight difference of the water evaporated during each air drying operation is too large, or if the weight difference of the water evaporated is too large, it can be determined that the air drying device 60 is faulty or abnormal, and the operator can remove the fault or abnormal in real time, so that the seasoning apparatus 60 can provide normal seasoning efficiency again.
In summary, the present invention uses the air drying device 60 as an automatic shell mold air drying device, and the controller 10 and the weighing platform 30 are matched to detect faults, so that shell molds of different batches can be circularly rotated and dried without manpower, and whether the air drying device 60 has a fault or is abnormal can be detected according to the air drying condition in each air drying operation, thereby solving the problems of low production efficiency and difficult quality control caused by manual methods in the prior art, and providing a shell mold air drying system and a detection method thereof capable of detecting faults.
It should be understood, however, that the description herein of specific embodiments is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides a shell mould air-dries system that can detect trouble which characterized in that, this shell mould air-dries system including:
a controller;
the mechanical arm is electrically connected with the controller and has a rotation range;
the weighing platform is electrically connected with the controller, and the local part of the weighing platform is positioned in the rotation range of the mechanical arm; and
an air drying device, which is arranged at intervals with the mechanical arm and the weighing platform and comprises
The closed outer cover body is provided with an accommodating space and at least one window, the accommodating space is formed inside the closed outer cover body, and the at least one window penetrates through one side of the closed outer cover body and is positioned in the rotation range of the mechanical arm, so that the mechanical arm can extend into the accommodating space through the at least one window;
the cabinet frame is arranged in the accommodating space of the closed outer cover body;
a transmission module, which is connected with the cabinet frame and comprises a driving component, at least one transmission component, a main connecting component, a plurality of fluted discs and two chains, wherein the driving component is arranged on one side of the cabinet frame, at least one transmission component is connected with two sides of the cabinet frame, the main connecting component is connected with the driving component and at least one transmission component, the fluted discs are pivoted on two sides of the cabinet frame at intervals, each fluted disc is linearly opposite to the other fluted disc, the fluted disc adjacent to at least one transmission component is connected with at least one transmission component and is driven to synchronously rotate, and the two chains are respectively meshed with the fluted discs on one side of the cabinet frame to form two linearly opposite circulation paths;
the hanging frames are pivoted with the two chains of the transmission module and provided with at least one hanging part, and after the mechanical arm extends into the air drying device, a shell mold can be hung on or taken down from the hanging part of the hanging frame close to at least one window;
the wireless communication module is provided with a reader and a plurality of wireless identification units, the reader is arranged on the cabinet frame and is electrically connected with the controller, the plurality of wireless identification units are respectively arranged on one of the hanging frames, and the reader can be connected with the adjacent wireless identification units through wireless signals; and
the fans are arranged on the cabinet frame at intervals.
2. The shell mold air drying system according to claim 1, wherein the shell mold air drying system comprises at least one slurry barrel and at least one sand dipping device, the at least one slurry barrel and the at least one sand dipping device are spaced apart from each other and are respectively and partially located within a rotation range of the robot arm.
3. A shell mold air drying system capable of detecting faults as claimed in claim 1 or 2, wherein the cabinet frame is provided with an even number of pairs of rails, each pair of rails is provided in parallel on the same height on both sides of the cabinet frame and respectively interposed between two toothed discs thereof, and the two chains respectively slide between the rails.
4. A shell mold air drying system capable of detecting faults as claimed in claim 3 wherein the cabinet frame is provided with four pairs of rails and the two chains are formed into a serpentine-like circulation path.
5. The shell mold air drying system capable of detecting faults as claimed in claim 4, wherein the transmission module is provided with two transmission assemblies and a pair of connecting assemblies, and the two transmission assemblies are connected through the pair of connecting assemblies to synchronously drive the connected fluted disc to rotate.
6. The shell mold air drying system capable of detecting faults as claimed in claim 5, wherein the reader of the wireless communication module is connected with the plurality of wireless identification units through any one of two-dimensional bar codes, three-dimensional bar codes, QR codes, radio frequency tags and near field communication tags.
7. The system of claim 6, wherein the frame has a protrusion disposed on a side of the frame facing the at least one window, and two of the plurality of toothed discs are disposed on opposite sides of the protrusion, respectively, such that the chains are capable of transporting the hangers sequentially to a position near the at least one window when the chains are in circulation.
8. The shell mold air drying system capable of detecting faults as claimed in claim 7, wherein the drive assembly includes a motor.
9. A method of inspection using the failure detectable shell mold air drying system of claim 1, the method comprising the steps of:
taking a shell mold off one of the hangers of the air drying device, moving the shell mold to the weighing platform for weighing, and measuring a first numerical value;
moving the shell mold to at least one slurry barrel for slurry dipping operation, then moving to the weighing platform again for weighing, and measuring a second numerical value;
moving the shell mold to at least one sand dipping device for sand dipping operation, then moving to the weighing platform again for weighing, and measuring a third numerical value;
hanging the shell mold back to the hanging frame, and performing air drying operation again;
taking out the shell mold, weighing, and measuring the weight after air drying again; and
and calculating and comparing the first numerical value, the second numerical value, the third numerical value and the weight after air drying again by using the controller.
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