An intelligent production line for water heaters

Abstract

The present invention discloses an intelligent production line for water heaters, which is applicable to the field of intelligent production technology. It sequentially includes a general assembly production line, a double-channel test line, and a post-packaging line. The double-channel test line includes a plurality of double-channel test benches. Each double-channel test bench includes a sliding track and a conveying rack slidably mounted on the sliding track. The conveying rack includes two conveying devices arranged parallel to each other front and back. When waiting for feeding at the double-channel test bench, the front conveying device corresponds to the main line. The general assembly products input from the general assembly production line are input to the front conveying device, and then the conveying rack is driven to move until the front conveying device is close to the test device and the rear conveying device corresponds to the main line. Thus, the products on the front conveying device are detected by the staff at the detection station, and the rear conveying device continues to transport the assembled products to the next double-channel test bench. The double-channel test bench can continue to transport while detecting, ensuring smooth transportation of the main line during product testing and improving production efficiency.

Description

Technical Field

[0001] The present invention relates to the field of air purification, and particularly to an intelligent production line for water heaters. Background Art

[0002] A gas water heater, also known as a gas wall-mounted boiler, refers to a gas appliance that uses gas as fuel and transfers heat to cold water flowing through a heat exchanger by combustion heating to achieve the purpose of preparing hot water, and has a wide range of applications in actual life. The demand for gas water heaters is relatively high, driving the production of enterprises. The current production line of gas water heaters includes assembly, inspection, and packaging processes, and there is only one workstation for each process. If multiple workstations are set, multiple workstations need to be set for each process. However, the total inspection takes a long time and does not match the time of other processes. If the number of inspection workstations is the same as that of other processes, it will delay the time of each workstation, resulting in a decrease in production efficiency.

[0003] Therefore, how to perform multi-station inspection without affecting the normal operation of the production line is the technical problem that the present invention aims to solve. Summary of the Invention

[0004] The main object of the present invention is to provide an intelligent production line for water heaters, aiming to perform multi-station inspection without affecting the normal operation of the production line and improve production efficiency.

[0005] The present invention provides an intelligent production line for water heaters, which sequentially includes a general assembly production line, a double-channel test line, and a post-packaging line, and also includes an automated control system. The double-channel test line includes at least two double-channel test benches. The double-channel test bench includes a sliding track, a conveying rack slidably mounted on the sliding track, a driving device for driving the conveying rack to slide on the sliding track, and a testing device located in front of the conveying rack. The conveying rack includes two conveying devices arranged in parallel front and back;

[0006] The front conveying device corresponds to the transfer positions of the general assembly production line and the post-packaging line. The general assembly products input from the general assembly production line are input to the front conveying device, and then the driving device drives the conveying rack to move the front conveying device close to the testing device. The rear conveying device corresponds to the transfer positions of the general assembly production line and the post-packaging line.

[0007] Preferably, a transfer rack is provided between adjacent double-channel test benches.

[0008] Preferably, the conveying device is vertical and includes an upper conveying channel and a lower conveying channel which are opposite to each other. Guardrails are provided on both sides of the upper conveying channel and the lower conveying channel. A plurality of rollers are provided on both sides of the upper conveying channel and the lower conveying channel, and the rollers are located on the guardrails. A test bench conveying track is installed on at least one of the upper conveying channel and the lower conveying channel.

[0009] Preferably, a turnover table is respectively provided between the output end of the general assembly production line and the input end of the dual-channel test bench and between the output end of the dual-channel test bench and the input end of the post-packaging line. The turnover table includes a table frame, a turnover table conveying device rotatably installed on the table frame, and an inclined jacking cylinder for jacking up the turnover table conveying device. The turnover table conveying device is hinged to the table frame, and the rear part of the turnover table conveying device is hinged to the movable end of the inclined jacking cylinder.

[0010] Preferably, the turnover table further includes a lifting mechanism. The table frame includes a vertical side frame and a horizontal frame. The turnover table conveying device is rotatably installed on the horizontal frame, and the inclined jacking cylinder is inclinedly installed on the horizontal frame. The lifting mechanism includes a lifting track and a lifting driving device provided on the vertical side frame. The horizontal frame is slidably installed on the lifting track and is driven by the lifting driving device to realize lifting and lowering.

[0011] Preferably, it includes a tooling board for carrying the water heater. Hooks are provided on the tooling board, and hole positions corresponding to the hooks are provided on the bottom plate of the water heater. The bottom plate of the water heater is combined with the hooks through the hole positions. The general assembly production line includes a general assembly line conveying track and a plurality of assembly stations arranged along the general assembly line conveying track. The tooling board is conveyed to each assembly station by the general assembly line conveying track, and the assembly of the components forming the water heater is completed on the tooling board. The assembled water heater and the tooling board are integrally conveyed to the turnover table, and are turned to the vertical state by the turnover table and conveyed to the dual-channel test bench for inspection.

[0012] Preferably, the turnover table conveying device includes a bearing plate, side plates provided on both sides of the bearing plate, and a turnover table conveying track. The turnover table conveying track is located inside the side plates. U-shaped grooves with opposite notch openings are provided inside the two side plates, and the U-shaped grooves are located above the turnover table conveying track.

[0013] Preferably, the post-packaging line includes a packaging conveying track for conveying the water heater, a picking station for unloading the water heater from the tooling board, and an automatic packing device. The picking station is located between the packaging conveying track and the automatic packing device.

[0014] Preferably, it further includes a tooling board circulating conveyor line, which includes a circulating conveyor track penetrating through the lower parts of the general assembly production line, the double-channel test line and the post-packaging line, a tail lifting table located between the packaging conveyor track and the automatic packing device, and a head lifting table located at the front end of the general assembly production line. The picking station is arranged on the tail lifting table. Lifting table conveyor devices are provided on both the tail lifting table and the head lifting table. The tooling board for unloading the water heater is conveyed from the tail lifting table to the circulating conveyor track, then conveyed by the circulating conveyor track to the head lifting table, and then conveyed by the head lifting table to the general assembly line conveyor track.

[0015] Preferably, it further includes an automatic removal device for non-conforming products in final inspection. The automatic removal device for non-conforming products in final inspection includes a final inspection removal lifting table arranged on the post-packaging line and a final inspection moving table arranged outside the post-packaging line. An electromagnet adsorption device is provided outside the post-packaging line. A magnetic metal and a pressure switch opposite to the electromagnet adsorption device are provided on the final inspection moving table. The bottom of the final inspection moving table is provided with rollers. Conveyor devices are provided on both the final inspection removal lifting table and the final inspection moving table. When non-conforming products are detected in the double-channel test line, the post-packaging line conveys the non-conforming products to the final inspection removal lifting table, and the final inspection removal lifting table raises them to a height higher than the post-packaging line and flush with the final inspection moving table. After the electromagnet adsorption device is turned on, it adsorbs the magnetic metal, causing the final inspection moving table to connect to the final inspection removal lifting table, and the conveyor device of the final inspection removal lifting table outputs the non-conforming products to the final inspection moving table.

[0016] Preferably, it further includes an initial inspection station arranged on the general assembly production line and an automatic removal device for non-conforming products in initial inspection. The automatic removal device for non-conforming products in initial inspection includes an initial inspection removal lifting table arranged on the general assembly production line and an initial inspection moving table arranged outside the general assembly production line. An electromagnet adsorption device is provided outside the general assembly production line. A magnetic metal and a pressure switch opposite to the electromagnet adsorption device are provided on the initial inspection moving table. The bottom of the initial inspection moving table is provided with rollers. Conveyor devices are provided on both the initial inspection removal lifting table and the initial inspection moving table. When non-conforming products are detected at the initial inspection station, the general assembly production line conveys the non-conforming products to the initial inspection removal lifting table, and the initial inspection removal lifting table raises them to a height higher than the general assembly production line and flush with the initial inspection moving table. After the electromagnet adsorption device is turned on, it adsorbs the magnetic metal, causing the initial inspection moving table to connect to the initial inspection removal lifting table, and the conveyor device of the initial inspection removal lifting table outputs the non-conforming products to the initial inspection moving table.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] The intelligent production line of the water heater proposed by the present invention is equipped with a dual-channel test line. The dual-channel test line includes multiple dual-channel test benches. Each dual-channel test bench includes a sliding track, a conveying rack slidably mounted on the sliding track, a driving device for driving the conveying rack to slide on the sliding track, and a test device located in front of the conveying rack. The conveying rack includes two conveying devices arranged parallel to each other front and back, capable of realizing dual-channel conveying. When waiting for feeding at the dual-channel test bench, the front conveying device corresponds to the transfer positions of the general assembly production line and the post-packaging line. The general assembly products input from the general assembly production line are input to the front conveying device, and then the driving device drives the conveying rack to move until the front conveying device is close to the test device and the rear conveying device corresponds to the transfer positions of the general assembly production line and the post-packaging line. Thus, the products on the front conveying device are detected by the staff at the inspection station, while the rear conveying device continues to transport the fully assembled products to the next dual-channel test bench. The dual-channel test bench can continue to transport while detecting, ensuring smooth bus transportation during product testing. Similarly, the next dual-channel test bench also conveys the input products to the front for detection through the front conveying device, while the rear conveying device continues to convey the products on the bus, and so on. After the products are detected at the inspection station, the front conveying device retreats to correspond to the bus, outputs the completed products to the post-packaging line, and waits for the next product to enter. The present invention can perform multi-station detection without affecting the normal operation of the production line, improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. is a front view of the intelligent production line of the water heater of the present invention.

[0020] Figure 2 FIG. is a top view of the intelligent production line of the water heater of the present invention.

[0021] Figure 3 FIG. is a perspective view of the tooling plate on the intelligent production line of the water heater of the present invention.

[0022] Figure 4 FIG. is a front assembled view of the tilting table, dual-channel test bench and transfer rack of the intelligent production line of the water heater of the present invention.

[0023] Figure 5 FIG. is a three-dimensional assembled view of the tilting table, dual-channel test bench and transfer rack of the intelligent production line of the water heater of the present invention Figure 1 .

[0024] Figure 6 FIG. is a three-dimensional assembled view of the tilting table, dual-channel test bench and transfer rack of the intelligent production line of the water heater of the present invention Figure 2 .

[0025] Figure 7 FIG. is a three-dimensional assembled view of the dual-channel test bench and transfer rack of the intelligent production line of the water heater of the present inventionFigure 1 .

[0026] Figure 8 Is the three-dimensional assembly of the dual-channel test bench and the transfer rack of the intelligent production line of the water heater of the present invention Figure 2 .

[0027] Figure 9 Is the three-dimensional view of the tilting table of the intelligent production line of the water heater of the present invention Figure 1 .

[0028] Figure 10 Is the three-dimensional view of the tilting table of the intelligent production line of the water heater of the present invention Figure 2 .

[0029] Figure 11 Is the three-dimensional view of the L-shaped structure of the tilting table of the intelligent production line of the water heater of the present invention.

[0030] The realization of the purpose, functional characteristics and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0031] The following details the embodiments of the present invention. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals identify the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and are not used to describe a specific order.

[0033] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0034] Refer to Figures 1 to 11 , and an embodiment of an intelligent production line of a water heater of the present invention is proposed:

[0035] An intelligent production line for water heaters includes an automated control system, and sequentially includes an assembly production line 10, a dual-channel test line, and a post-packaging line 60. The automated control system is a PLC control system, with a Siemens s7-200 SMART CPU as the main control. The software written controls pneumatic components, motors, sensors and other parts in the water heater production line through the Siemens s7-200 SMART CPU ST60 platform to complete various series of actions.

[0036] The assembly production line 10 includes an assembly line body bracket, assembly line conveying tracks arranged on both sides of the upper end of the assembly line body bracket, and a plurality of assembly stations arranged along the assembly line conveying tracks. Each assembly station is assembled manually. The assembly line conveying track is a conveyor belt mechanism, which is a conventional technology and its specific structure will not be described in detail. A tooling plate 100 is placed on the assembly line conveying track. The tooling plate 100 is conveyed by the assembly line conveying track to each assembly station. A hook 101 is provided on the tooling plate 100, and a hole position corresponding to the hook 101 is provided on the bottom plate of the water heater. During assembly, the bottom plate of the water heater is first installed on the tooling plate 100, and the bottom plate of the water heater is combined with the hook 101 through the hole position. The assembly line conveying track transports the tooling plate 100 to each assembly station in sequence. The residence time of the tooling plate 100 at each assembly station is controlled by the automated control system. The assembly of the components forming the water heater is completed on the tooling plate 100, and the assembled water heater and the tooling plate 100 are transported together.

[0037] The dual-channel test line includes a plurality of dual-channel test benches 30 arranged side by side. There is a transfer rack 40 between adjacent dual-channel test benches 30. The transfer rack 40 includes a track bracket 41 and a conveying track arranged on the track bracket 41. The products assembled by the assembly production line 10 are transported to the dual-channel test line for summary detection. The dual-channel test bench 30 includes a bench 31, a sliding track 33 arranged in the front-back direction and installed on the bench 31, a conveying rack 32 slidably installed on the sliding track 33, a driving device for driving the conveying rack 32 to slide on the sliding track 33, and a test device located in front of the conveying rack 32. The conveying rack 32 includes two conveying devices arranged parallel to each other in the front-back direction. The moving direction of the sliding track 33 intersects the conveying direction of the conveying device at 90°.

[0038] When waiting for feeding on the dual-channel test bench 30, the front conveying device 310 corresponds to the conveying positions on the general assembly production line 10, the conveying device on the transfer rack 40, and the post-packaging line 60. The general assembly products output from the general assembly production line 10 are input into the front conveying device 310, and then the driving device drives the conveying rack 32 to move the front conveying device 310 close to the test device. The rear conveying device 320 corresponds to the conveying positions on the general assembly production line 10 and the post-packaging line 60. Thus, the products on the front conveying device 310 are detected by the staff at the detection station, and the rear conveying device 320 continues to transport the fully assembled products to the next dual-channel test bench 30. The dual-channel test bench 30 can continue to transport while detecting, ensuring smooth bus transportation during product testing. The next dual-channel test bench 30 also conveys the input products to the front side for detection through the front conveying device 310, and the rear conveying device 320 continues to convey the products on the bus, and so on. After the products are detected at the detection station, the front conveying device 310 retreats to correspond to the bus, outputs the detected completed products to the post-packaging line 60, and waits for the next product to enter. Thus, multi-station detection can be carried out without affecting the normal operation of the production line, improving production efficiency.

[0039] In one embodiment, the driving device on the bench 31 is a gear-rack driving mechanism, including a driving motor 35, a gear, and a rack 34. The driving motor 35 is installed on the conveying rack 32. The driving motor 35 drives the gear to rotate. The rack 34 is installed on the bench 31. The rack 34 is arranged in parallel with the sliding track 33. The gear meshes with the rack 34. By rolling the gear on the rack 34, the conveying rack 32 is pushed to move on the sliding track 33. The forward and backward movement of the conveying rack 32 on the sliding track 33 is achieved by the forward and reverse rotation of the driving motor 35.

[0040] In one embodiment, the conveying devices on the transfer rack 41 and the conveying rack 32 are vertical, and both include opposite upper conveying channels 161 and lower conveying channels 162. A test bench conveying track 165 is installed on the lower conveying channel 162. The test bench conveying track 165 is a conveyor belt mechanism. Guardrails 163 are provided on both sides of the upper conveying channel 161 and the lower conveying channel 162. A plurality of rollers 164 are installed on the guardrails 163. When the tooling plate 100 and the products thereon are transported to the dual-channel test bench 30, the upper side of the tooling plate 100 is placed on the upper conveying channel 161, and the lower side of the tooling plate 100 is placed on the lower conveying channel 162. The conveyor belt mechanism drives the tooling plate 100 to move. The rollers 164 on both sides make the tooling plate 100 safer during vertical transportation and will not tip over. Moreover, the friction force when the rollers 164 contact the tooling plate 100 is small, reducing the transportation resistance.

[0041] To achieve the conversion of the tooling board 100 from a flat state to a vertical state, a turning table 20 is provided between the output end of the general assembly production line 10 and the input end of the dual-channel test bench 30, and a turning table 50 is provided between the output end of the dual-channel test bench 30 and the input end of the post-packaging line 60. The turning tables 20 and 50 include a frame, a turning table conveying device 23 rotatably installed on the frame, and an inclined top cylinder 26 for jacking up the turning table conveying device 23. The turning table conveying device 23 is hinged to the front part of the frame, and the rear part of the turning table conveying device 23 is hinged to the movable end of the inclined top cylinder 26.

[0042] The turning tables 20 and 50 further include a lifting mechanism. The turning table frame includes a bottom frame, a vertical side frame 21 and a horizontal frame 22. The bottom frame is fixedly connected to the vertical side frame 21 to form an L-shaped structure. The lifting mechanism includes a lifting track 24 and a lifting drive device provided on the vertical side frame. The horizontal frame 22 is slidably installed on the lifting track 24 and is driven by the lifting drive device to move up and down.

[0043] Specifically, the vertical side frame 21 is a square frame structure. The lifting tracks 24 are arranged on the two vertically opposite inner sides of the vertical side frame 21. The width of the horizontal frame 22 is smaller than the inner size of the vertical side frame 21. Sliding blocks 241 adapted to the lifting tracks 24 are fixedly connected to both sides of the horizontal frame 22. The horizontal frame 22 is slidably installed on the lifting tracks 24 through the sliding blocks 241. The lifting drive device includes a cylinder 25 installed at the lower part of the vertical side frame 21. The pushing end of the cylinder 25 faces upward. A push head for evenly applying force is installed at the pushing end of the cylinder 25. The push head is a crossbar structure. At least two connecting plates are provided on the horizontal frame 22. The two ends of the push head are respectively connected to the two connecting plates. The horizontal frame 22 is driven to move up and down by the cylinder 25.

[0044] The turning table conveying device 23 is rotatably installed on the horizontal frame 22. Specifically, hinge seats are provided on the left and right sides at the front end of the horizontal frame 22. Hinge holes are provided on the hinge seats. Both ends of a hinge shaft 236 penetrate through the hinge holes on both sides of the hinge seats. Hinge plates corresponding to the hinge seats are provided on the left and right sides of the horizontal frame 22. Second hinge holes corresponding to the hinge holes are provided on the hinge plates. Both ends of the hinge shaft 236 extend out from the second hinge holes and are connected to end caps or nuts, so that the turning table conveying device 23 can rotate around the hinge shaft 236. By rotating, the turning table conveying device 23 can be horizontally placed on the horizontal frame 22 or vertically placed in front of the horizontal frame 22. The horizontal frame 22 is a frame shape. The inclined top cylinder 26 is inclinedly installed on the horizontal frame 22 and is located below the inner part of the frame of the horizontal frame 22. A connecting head 235 is hinged to the back of the turning table conveying device 23. The movable end of the inclined top cylinder 26 is connected to the connecting head 235. The turning table conveying device 23 is driven to turn by the inclined top cylinder 26, realizing the conversion of the turning table conveying device 23 between the horizontal placement state and the vertical placement state.

[0045] The turnover table conveying device 23 includes a bearing plate 231, side plates 232 arranged on both sides of the bearing plate 231, and a turnover table conveying track 234. The turnover table conveying track 234 is located inside the side plates 232, and the transportation direction of the turnover table conveying track 234 is the same as that of the general assembly line conveying track 10. U-shaped grooves 233 with opposite notches are arranged on the inner sides of the two side plates 232, and the U-shaped grooves 233 are located above the turnover table conveying track 234. When the tooling plate 100 enters the turnover table conveying device 23, both sides of the tooling plate 100 are inserted into the U-shaped grooves 233, ensuring that the tooling plate 100 on it will not fall when the turnover table conveying device 23 is in the vertical state, and maintaining vertical transportation.

[0046] Products are output from the general assembly production line 10 to the adjacent turnover table 20, are turned to the vertical state by the turnover table 20 and conveyed to the double-channel test bench 30 for inspection. The products after inspection are output to the turnover table 50, are turned to the horizontal state by the turnover table 50 and conveyed to the post-packaging line 60.

[0047] The unqualified products detected by the double-channel test bench 30 are removed by the automatic removal device for final inspection unqualified products.

[0048] The automatic removal device for final inspection unqualified products includes a final inspection removal lifting table 130 arranged on the post-packaging line 60 and a final inspection moving table 140 arranged outside the post-packaging line 60. Conveying devices are arranged on both the final inspection removal lifting table 130 and the final inspection moving table 140. The conveying device on the final inspection removal lifting table 130 is a conveyor belt that transports in the front and back directions and is arranged on both sides of the final inspection removal lifting table 130, and the conveying device on the final inspection moving table 140 is a conveyor belt that transports in the front and back directions and is arranged on both sides of the final inspection moving table 140.

[0049] An electromagnet adsorption device is arranged outside the post-packaging line 60. A magnetic metal and a pressure switch opposite to the electromagnet adsorption device are arranged on the final inspection moving table 140. Rollers are arranged at the bottom of the final inspection moving table. A vision sensor is arranged on the other outer side of the post-packaging line. The electromagnet adsorption device and the vision sensor are located on both outer sides of the final inspection removal lifting table 130.

[0050] Unqualified products detected at the inspection station are labeled with unqualified icons by the inspectors. When the unqualified products are conveyed by the post-packaging line 60 to the position of the general inspection removal lifting table 130, the vision sensor makes a judgment based on the icon information on the unqualified products and sends the judgment signal to the automated control system to execute the process of removing unqualified products during general inspection. The automated control system controls the general inspection removal lifting table 130 to rise higher than the post-packaging line 60 and be flush with the general inspection moving table 140. At the same time, it controls the electromagnet adsorption device to be turned on, thereby adsorbing magnetic metals, enabling the general inspection moving table 140 to receive the general inspection removal lifting table 130, and the conveying device of the general inspection removal lifting table 130 outputs the unqualified products to the general inspection moving table 140. While the magnetic metals are being adsorbed, the pressure switch is triggered, thereby turning on the conveying device on the general inspection moving table 140. The conveying device on the general inspection moving table 140 receives the unqualified products output by the general inspection removal lifting table. The length of the general inspection moving table 140 is set according to requirements and can receive multiple unqualified products. Finally, the staff push the unqualified products on the general inspection moving table 140 for repair.

[0051] In a preferred embodiment, it further includes a preliminary inspection station and an automatic removal device for preliminary inspection unqualified products arranged on the general assembly production line 10, which is used to detect the airtightness of the water heater.

[0052] The automatic removal device for preliminary inspection unqualified products includes a preliminary inspection removal lifting table 110 arranged on the general assembly production line and a preliminary inspection moving table 120 arranged outside the general assembly production line. Conveying devices are provided on both the preliminary inspection removal lifting table 110 and the preliminary inspection moving table 120. The conveying device on the preliminary inspection removal lifting table 110 is a conveyor belt that transports in the front and back directions and is arranged on both sides of the preliminary inspection removal lifting table 110, and the conveying device on the preliminary inspection moving table 120 is a conveyor belt that transports in the front and back directions and is arranged on both sides of the preliminary inspection moving table 120.

[0053] An electromagnet adsorption device is arranged outside the general assembly production line 10. A magnetic metal and a pressure switch opposite to the electromagnet adsorption device are provided on the preliminary inspection moving table 120. Rollers are provided at the bottom of the preliminary inspection moving table. A vision sensor is arranged on the other side outside the general assembly production line. The electromagnet adsorption device and the vision sensor are located on both outer sides of the preliminary inspection removal lifting table 110.

[0054] The unqualified products detected at the initial inspection station are labeled with unqualified icons by the inspectors. When the unqualified products are conveyed by the general assembly production line 10 to the position of the initial inspection removal lift table 110, the vision sensor makes a judgment based on the icon information on the unqualified products and sends the judgment signal to the automated control system to execute the process of removing the unqualified products at the initial inspection. The automated control system controls the initial inspection removal lift table 110 to rise higher than the general assembly production line 10 and be flush with the initial inspection moving table 120. At the same time, it controls the opening of the electromagnet adsorption device to adsorb the corresponding magnetic metal, so that the initial inspection moving table 120 connects to the initial inspection removal lift table 110, and the conveying device of the initial inspection removal lift table 110 outputs the unqualified products to the initial inspection moving table 120. While the magnetic metal is being adsorbed, the corresponding pressure switch is triggered, thus turning on the conveying device on the initial inspection moving table 120. The conveying device on the initial inspection moving table 120 receives the unqualified products output by the initial inspection removal lift table 110. The length of the initial inspection moving table 120 is set according to requirements and can receive multiple unqualified products. Finally, the staff push the unqualified products on the initial inspection moving table 120 to be repaired.

[0055] The products passing the initial inspection are input into the turning table 20, turned into a vertical position by the turning table 20 and then conveyed to the double-channel test bench 30 for final inspection. The products passing the final inspection enter the post-packaging line 60 through the turning table 50 and are automatically packed by the post-packaging line 60.

[0056] The post-packaging line 60 includes a packaging conveying track for conveying the water heaters, a picking station for unloading the water heaters from the tooling board, and an automatic packing device. The picking station is located between the packaging conveying track and the automatic packing device. The packaging conveying track is a conveyor belt mechanism in the prior art, and the automatic packing device can adopt an automatic packing machine in the prior art. The qualified products are conveyed by the packaging conveying track to the picking station, and the qualified products are unloaded from the tooling board by the worker and moved into the automatic packing device, where they are packed by the automatic packing device.

[0057] In a preferred embodiment, it further includes a tooling board circulating conveyor line 80, which includes a circulating conveyor track 80 penetrating through the bottoms of the general assembly production line 10, the double-channel test line, and the post-packaging line 60, a tail lifting table 70 located between the packaging conveyor track and the automatic packing device, and a head lifting table 90 located at the front end of the general assembly production line. The picking station is arranged on the tail lifting table 70. Lifting table conveyor belts are provided on both the tail lifting table 70 and the head lifting table 90. Qualified products are conveyed to the tail lifting table 70 by the packaging conveyor track, and then the workers at the picking station unload the qualified products from the tooling board 100 and move them into the automatic packing device. The tooling board 100 remains on the tail lifting table 70. The tooling board 100 after unloading the water heater descends from the tail lifting table 70 to the position of the circulating conveyor track 80, and the tooling board 100 is conveyed to the circulating conveyor track 80 by the lifting table conveyor belt on the tail lifting table 70, and then conveyed to the head lifting table 90 by the circulating conveyor track 80. The head lifting table 90 receives the returned tooling board 100 through the lifting table conveyor belt thereon, rises to the position of the general assembly line conveyor track after receiving the tooling board 100, and conveys the tooling board 100 back to the general assembly line conveyor track by the lifting table conveyor belt on the head lifting table 90, realizing the automatic circular use of the tooling board 100 and improving production efficiency.

[0058] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict, make combinations, additions, deletions, or other adjustments to the features in the embodiments of the present invention according to the situation without creative efforts, so as to obtain different technical solutions that essentially do not deviate from the concept of the present invention. These technical solutions also belong to the scope of protection of the present invention.

Claims

1. An intelligent production line for water heaters, characterized in that, It includes an assembly line, a dual-channel test line and a post-packaging line in sequence, and also includes an automatic control system. The dual-channel test line includes at least two dual-channel test benches. The dual-channel test benches include a sliding track, a conveying frame slidably mounted on the sliding track, a driving device for driving the conveying frame to slide on the sliding track, and a testing device located in front of the conveying frame. The conveying frame includes two conveying devices arranged in parallel in front and behind. The front conveying device corresponds to the transmission position of the final assembly line and the post-packaging line. The final assembly products input from the final assembly line are input to the front conveying device, and then the driving device drives the conveying frame to move to the front conveying device close to the testing device, and the post conveying device corresponds to the transmission position of the final assembly line and the post-packaging line; The conveying device is vertical, including an upper conveying channel and a lower conveying channel relative to each other, guardrails are provided on both sides of the upper conveying channel and the lower conveying channel, and multiple rollers are provided on both sides of the upper conveying channel and the lower conveying channel, and the rollers are located on the guardrails. A test bench conveying track is installed on at least one of the upper conveying channel and the lower conveying channel; a turning table is respectively provided between the output end of the final assembly production line and the input end of the dual-channel test line, and between the output end of the dual-channel test line and the input end of the post-packaging line, and the turning table includes a stand, a turning table conveying device rotatably installed on the stand, and a tilting cylinder for lifting the turning table conveying device, the turning table conveying device is hinged to the stand, and the rear part of the turning table conveying device is hinged to the movable end of the tilting cylinder.

2. The intelligent production line of the water heater according to claim 1, wherein A transmission rack is provided between adjacent dual-channel test benches.

3. The intelligent production line of the water heater according to claim 1, wherein The turning table also includes a lifting mechanism, the table includes a vertical side frame and a horizontal frame, the turning table conveying device is rotatably installed on the horizontal frame, the inclined top cylinder is obliquely installed on the horizontal frame, the lifting mechanism includes a lifting track and a lifting drive device arranged on the vertical side frame, the horizontal frame is slidably installed on the lifting track, and is driven by the lifting drive device to achieve lifting and lowering.

4. The intelligent production line of the water heater according to claim 3, characterized in that, It comprises a tooling plate for carrying the water heater, the tooling plate is provided with a hook, the bottom plate of the water heater is provided with a hole corresponding to the hook, and the bottom plate of the water heater is combined with the hook through the hole; the final assembly production line comprises a final assembly line conveying track and a plurality of assembly stations arranged along the final assembly line conveying track, the tooling plate is conveyed to each of the assembly stations by the final assembly line conveying track, and the assembly of the components constituting the water heater is completed on the tooling plate; The assembled water heater and the tooling plate are transported to the turning table as a whole, turned to a vertical state by the turning table, and transported to the dual-channel test bench for testing.

5. The intelligent production line of the water heater according to claim 4, characterized in that The turning table conveying device includes a carrying plate, side plates arranged on both sides of the carrying plate and a turning table conveying track. The turning table conveying track is located on the inner side of the side plates. The inner sides of the two side plates are provided with U-shaped grooves with opposite notches. The U-shaped groove is located above the turning table conveying track.

6. The intelligent production line of a water heater according to claim 5, characterized in that, The rear packaging line includes a packaging conveyor track for transporting water heaters, a picking station for unloading water heaters from the tooling board, and an automatic packaging device. The picking station is located between the packaging conveyor track and the automatic packaging device.

7. The intelligent production line of a water heater according to claim 6, characterized in that, It further includes a circulating conveyor line for the tooling board, which includes a circulating conveyor track penetrating through the lower parts of the general assembly production line, the dual-channel test line, and the rear packaging line, a tail lift located between the packaging conveyor track and the automatic packaging device, and a head lift located at the front end of the general assembly production line. The picking station is arranged on the tail lift. Lifting table conveyor devices are provided on both the tail lift and the head lift. The tooling board with the unloaded water heater is transported from the tail lift to the circulating conveyor track, then transported by the circulating conveyor track to the head lift, and then transported by the head lift to the general assembly line conveyor track.

8. The intelligent production line for water heaters according to any one of claims 1 to 7, characterized in that, It further includes an automatic removal device for non-conforming products in the final inspection. The automatic removal device for non-conforming products in the final inspection includes a final inspection removal lift arranged on the rear packaging line and a final inspection moving table arranged outside the rear packaging line. An electromagnet adsorption device is provided outside the rear packaging line. A magnetic metal and a pressure switch opposite to the electromagnet adsorption device are provided on the final inspection moving table. The bottom of the final inspection moving table is provided with rollers. Conveyor devices are provided on both the final inspection removal lift and the final inspection moving table. When non-conforming products are detected in the dual-channel test line, the rear packaging line transports the non-conforming products to the final inspection removal lift, which rises to a height higher than the rear packaging line and is flush with the final inspection moving table. After the electromagnet adsorption device is turned on, it adsorbs the magnetic metal, causing the final inspection moving table to connect with the final inspection removal lift, and the conveyor device of the final inspection removal lift outputs the non-conforming products to the final inspection moving table.

9. The intelligent production line for water heaters according to any one of claims 1 to 7, characterized in that It further includes an initial inspection station and an automatic removal device for non-conforming products in the initial inspection arranged on the general assembly production line. The automatic removal device for non-conforming products in the initial inspection includes an initial inspection removal lift arranged on the general assembly production line and an initial inspection moving table arranged outside the general assembly production line. An electromagnet adsorption device is provided outside the general assembly production line. A magnetic metal and a pressure switch opposite to the electromagnet adsorption device are provided on the initial inspection moving table. The bottom of the initial inspection moving table is provided with rollers. Conveyor devices are provided on both the initial inspection removal lift and the initial inspection moving table. When non-conforming products are detected at the initial inspection station, the general assembly production line transports the non-conforming products to the initial inspection removal lift, which rises to a height higher than the general assembly production line and is flush with the initial inspection moving table. After the electromagnet adsorption device is turned on, it adsorbs the magnetic metal, causing the initial inspection moving table to connect with the initial inspection removal lift, and the conveyor device of the initial inspection removal lift outputs the non-conforming products to the initial inspection moving table.

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