Gas meter detection line and detection method

Abstract

The present application relates to the field of gas meter detection, in particular to a gas meter detection line and detection method, the detection line comprising: a conveying device for conveying gas meter pallets, the conveying device comprising a conveyor belt and a bracket for installing the conveyor belt, the conveyor belt comprising a loading belt, a unloading belt, a main conveyor belt, a return belt and an intermediate belt, the loading belt, the unloading belt, the main conveyor belt, the return belt and the intermediate belt are all driven by independent driving members, and the driving members are fixed on the bracket, the detection line also comprises: a loading device, arranged at the initial end of the loading belt, for loading the gas meter to be tested onto an empty pallet on the loading belt; a first transfer device, arranged at the end of the return belt and the initial end of the loading belt, for transferring the pallet on the return belt to the loading belt, by cooperating with the loading device and the first transfer device, the gas meter to be detected for the second time and the gas meter to be detected for the first time can be placed on the loading belt without interfering with each other, thereby improving the degree of automation and improving the detection efficiency.

Description

Technical Field

[0001] The present application relates to the field of gas meter detection, and in particular to a gas meter detection line and detection method. Background Art

[0002] Gas meters undergo both metering performance and airtightness tests before leaving the production line. Generally, if a gas meter fails the initial test, a secondary test is required for confirmation. However, these tests typically occur on the same test line, which can interfere with the loading of materials for the initial and secondary tests. This requires manual intervention, resulting in low testing efficiency and a low degree of automation. Summary of the Invention

[0003] In order to solve the problems of low detection efficiency and low degree of automation, the present application provides a gas meter detection line and detection method.

[0004] The gas meter detection line provided in this application adopts the following technical solution:

[0005] A gas meter detection line includes: a conveying device for conveying gas meter pallets, the conveying device includes a conveyor belt, a bracket for installing the conveyor belt, the conveyor belt includes a feeding belt, a feeding belt, a main conveyor belt, a return belt and an intermediate belt, the feeding belt, the feeding belt, the feeding belt, the main conveyor belt, the return belt and the intermediate belt are all driven by independent driving members, and the driving members are fixed on the bracket, wherein: the main conveyor belt includes a first conveyor belt and a second conveyor belt, a plurality of intermediate belts are connected between the first conveyor belt and the second conveyor belt, the feeding belt, the first conveyor belt, the feeding belt and the return belt are connected end to end in sequence, and the pallets are moved along the feeding belt, the first conveyor belt, the feeding belt and the return belt A conveyor belt, a discharge belt and a return belt are circulated; the intermediate belt includes a first detection belt, a second detection belt, a feed belt and a temporary belt, the first detection belt and the temporary belt are used to transport the pallets on the first conveyor belt to the second conveyor belt, and the second detection belt and the feed belt are used to transport the pallets on the second conveyor belt to the first conveyor belt; the detection line also includes: a loading device, which is arranged at the initial end of the loading belt, for loading the gas meter to be tested onto the empty pallet on the loading belt; a first transfer device, which is arranged at the end of the return belt and the initial end of the loading belt, for transferring the pallet on the return belt to the loading belt.

[0006] By adopting the above technical solution, a feeding belt, a feeding belt, a main conveyor belt, a return belt and an intermediate belt are set to realize cyclic conveyance of the pallets loaded with gas meters. The drives of various conveyor belts are independent, which improves the degree of automation of gas meter detection; the intermediate belt includes a first detection belt, a second detection belt, a feeding belt and a temporary retention belt. After the gas meter is detected by the detection station on the first detection belt, the gas meter is sent back to the first conveyor belt through the first detection belt, the second conveyor belt and the feeding belt, and then the qualified gas meter is transported to the second detection belt through the temporary retention belt and the second conveyor belt for detection by the first conveyor belt, while the unqualified gas meter is directly transported to the feeding belt and no longer transported to the second detection belt. The first transfer device is set between the return belt and the loading belt, which can transport the empty pallets on the return belt and the pallets loaded with gas meters to the loading belt, so that the gas meters that fail the first inspection can be inspected for the second time, reducing the waste of qualified products caused by the inspection error of the gas meters. The loading device can load the gas meters to be tested for the first time onto the empty pallets on the loading belt. When there are gas meters on the pallets on the loading belt, the loading device will not load the gas meters, so as to avoid interference between the loading of the gas meters for the first inspection and the transportation of the gas meters for the second inspection, thereby improving the inspection efficiency.

[0007] It is further preferred that the loading belt, the unloading belt, the main conveyor belt, the return belt and the intermediate belt each include two belts, and the two belts are parallel and spaced apart.

[0008] By adopting the above technical solution, various conveyor belts are two parallel belts arranged at intervals, which makes it convenient for the transfer device to lift the pallet on the conveyor belt, thereby facilitating the transfer of pallets between various conveyor belts, which is convenient and fast, improves the transfer efficiency, and thus improves the detection efficiency of the overall detection line.

[0009] Further preferably, a placement seat for loading the gas meter is fixedly provided on the tray, and positioning holes for connecting with the loading device are opened from top to bottom of the tray.

[0010] By adopting the above technical solution, a placement seat is fixed on the pallet, which facilitates the installation of the gas meter and can support and stabilize the gas meter. Positioning holes are opened on the pallet so that the loading mechanism can position the pallet and then accurately install the gas meter on the placement seat, thereby improving the degree of automation.

[0011] Further preferably, the feeding device includes a lifting mechanism installed on the bracket of the feeding belt, and the lifting mechanism includes a lifting cylinder fixed on the bracket, a lifting plate installed on the output end of the lifting cylinder, and a clamping rod fixed on the lifting plate for inserting the positioning hole.

[0012] By adopting the above technical solution, after the pallet on the loading belt moves to the top of the lifting mechanism, the lifting cylinder drives the lifting plate and the clamping rod to rise, so that the clamping rod is clamped into the positioning hole to position the pallet, so that the loading device can accurately load the gas meter onto the placement seat of the pallet, and the lifting plate lifts the pallet off the loading belt, which is convenient for loading the gas meter and can also eliminate the squeezing of the loading belt during the loading process.

[0013] It is further preferred that the loading device also includes a mounting frame 1, a positioning mechanism installed on the mounting frame, a supporting mechanism, and a loading mechanism, wherein: the loading mechanism includes a lifting cylinder fixed on the mounting frame 1, a lifting plate installed on the output end of the lifting cylinder, and the positioning mechanism is fixedly installed on the lifting plate; the positioning mechanism includes positioning cylinder 1 and positioning cylinder 2 fixed on the lifting plate, a positioning clamp installed on the output end of positioning cylinder 1, a positioning rod installed at the output end of positioning cylinder 2, and a fixed block fixed on the positioning clamp, and the positioning clamp is perpendicular to the moving direction of the positioning rod; the supporting mechanism includes a driving cylinder fixed on the mounting frame 1, and a supporting plate installed on the output end of the driving cylinder.

[0014] By adopting the above technical solution, a supporting mechanism is set in the loading device to support the gas meter transferred from the production line, thereby supporting the gas meter and improving the stability of the gas meter in the subsequent positioning process. The positioning mechanism drives the positioning cylinder 1 and the positioning cylinder 2 to position the gas meter with the positioning splint and the positioning rod, so that the gas meter corresponds to the placement seat in the vertical direction. Finally, the lifting plate is driven by the lifting cylinder to accurately insert the gas meter from top to bottom into the placement seat to complete the installation. It is convenient and fast, and the loading efficiency is high.

[0015] It is further preferred that the first transfer device includes a mounting frame 2, a pushing mechanism and a lifting mechanism installed on the mounting frame 2, wherein: the lifting mechanism includes a lifting cylinder fixed on the mounting frame 2, and a supporting platform installed at the output end of the lifting cylinder for receiving the pallet conveyed by the return belt; the pushing mechanism includes a pushing cylinder fixed on the mounting frame 2, and a push rod installed at the output end of the pushing cylinder and used to push the pallet on the supporting platform to the loading belt.

[0016] By adopting the above technical solution, the pallet on the return belt is moved to the carrying platform under the conveying action of the return belt, and the carrying platform is raised by the lifting cylinder until the pallet is flush with the push rod. At this time, the push cylinder is driven to push the push rod to push the pallet onto the loading belt, thereby realizing the recycling of the pallet. When the pallet is loaded with unqualified gas meters, the gas meter can also be tested online for the second time.

[0017] It is further preferred that the return conveyor belt includes a connecting belt and a return belt, the starting end of the connecting belt is connected to the end of the unloading belt, the end of the return belt is connected to the starting end of the loading belt, and the end of the connecting belt is connected to the starting end of the return belt. The detection line also includes a second transfer device, which is arranged at the end of the connecting belt and the starting end of the return belt, and is used to transfer the pallet on the connecting belt to the return belt. The second transfer device includes a mounting frame three, a descending mechanism installed on the mounting frame three, and a moving mechanism. The descending mechanism includes a descending cylinder fixed on the mounting frame three and a mounting platform installed on the descending cylinder. The moving mechanism includes a moving belt installed on the mounting platform and a moving motor for driving the moving belt. The moving belt is used to transfer the pallet at the end of the connecting belt to the return belt.

[0018] By adopting the above technical solution, the return conveyor belt is divided into a receiving belt and a return belt. The return belt and the unloading belt are at the same height to facilitate receiving the pallet conveyed on the unloading belt, and the height of the return belt is set lower than that of the receiving belt, so that space is left above the return belt to facilitate the installation of the second conveyor belt, thereby improving space utilization. The receiving belt and the return belt are transferred in the height direction through the second transfer device. After the pallet on the receiving belt moves to the moving belt, the mounting table, the moving belt and the pallet are driven down by the descending cylinder until the moving belt is flush with the return belt. At this time, the moving belt is driven by the moving motor to transport the pallet to the return belt, thereby realizing the transfer and return of the pallet.

[0019] It is further preferred that the inspection line also includes several groups of third transfer devices, and third transfer devices are arranged between the loading belt and the main conveyor belt, between the unloading belt and the main conveyor belt, between the intermediate belt and the main conveyor belt, and between the unloading belt and the return belt. The third transfer device includes a mounting frame four, a transfer mechanism and a lifting mechanism installed on the mounting frame four, the lifting mechanism includes a lifting cylinder fixed on the mounting frame four, and a lifting platform installed at the output end of the lifting cylinder. The transfer mechanism includes a transfer belt installed on the lifting platform and a transfer motor for driving the transfer belt.

[0020] By adopting the above technical solution, when the pallet needs to be transferred to other conveyor belts during the conveying process, the pallet is first moved to the transfer belt, and the lifting platform and the pallet are driven to rise and detach from the conveyor belt by the jacking cylinder, and then the transfer belt is driven by the transfer motor to transfer the pallet to another conveyor belt, which is convenient and quick.

[0021] This application also provides a detection method using the following scheme:

[0022] A detection method includes the following steps: S1: a loading belt conveys a tray to a loading device, and when the tray is not loaded with a gas meter, the gas meter to be tested is positioned and loaded onto the tray by the loading device; when the tray is loaded with a gas meter, the loading belt conveys the tray to a first conveyor belt; S2: the first conveyor belt transfers the tray loaded with the gas meter to a first detection belt, and performs a metering performance test on the gas meter to be tested on the tray on the first detection belt. After the test is completed, the first detection belt conveys the tray loaded with the gas meter to a second conveyor belt; S3: the second conveyor belt transfers the tray loaded with the gas meter to the feeding belt, and then the feeding belt transfers the tray loaded with the gas meter to the first conveyor belt. Based on the test result in step S2, the qualified gas meter is transferred to the temporary holding belt. Unqualified gas meters are transferred to the unloading belt; S4: the temporary belt transfers the pallet loaded with gas meters to the second conveyor belt, and then transfers the pallet loaded with gas meters to the second detection belt through the second conveyor belt for air tightness testing. After the test is completed, the second detection belt transports the pallet loaded with gas meters to the first conveyor belt, and then the first conveyor belt transfers the pallet loaded with gas meters to the unloading belt; S5: On the unloading belt, the gas meters that have passed the test are removed from the pallet, and the empty pallet is transferred to the return belt through the unloading belt; the unloading belt transfers the gas meters that have failed the test together with the pallet to the return belt; S6: The return belt returns the empty pallet or the pallet loaded with gas meters to the first transfer device, and transfers the empty pallet or the pallet loaded with gas meters to the loading belt through the first transfer device.

[0023] It is further preferred that step S31 is included between step S3 and step S4: before transferring the pallet loaded with gas meters to the second conveyor belt, check whether there is a gas meter to be tested on the second detection belt. If not, the temporary belt transfers the pallet loaded with gas meters to the second conveyor belt; if yes, the temporary belt stops running, and the pallet loaded with gas meters stays on the temporary belt until there are no gas meters to be tested on the second detection belt.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. In this application, by cooperating with the loading device and the first transfer device, the gas meter for secondary detection and the gas meter for primary detection can be placed on the loading belt without interfering with each other, thereby improving the degree of automation and the detection efficiency;

[0026] 2. In a further configuration of the present application, the return belt and the receiving belt in the return conveyor are staggered in the height direction, so that space is reserved above the return belt for installing a second conveyor belt, thereby improving space utilization;

[0027] 3. In the further arrangement of the present application, a first detection belt, a feeding belt, a temporary retention belt and a second detection belt are provided in the middle belt. When the gas meter undergoing metering performance test on the first detection belt fails the test, the gas meter is fed to the first conveyor belt through the feeding belt and can be directly fed to the unloading belt without the need for air tightness test. The metering performance test and the air tightness test are coordinated to improve the test efficiency.

[0028] 4. In a further configuration of this application, a placement seat is provided on the tray to support and stabilize the gas meter, thereby improving the stability of the gas meter during transportation and avoiding affecting the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a top view schematic diagram of a gas meter detection line;

[0030] Figure 2 This is a schematic diagram of the three-dimensional structure when the gas meter is placed on the tray;

[0031] Figure 3 yes Figure 1 A is an enlarged schematic diagram;

[0032] Figure 4 It is a schematic diagram of the three-dimensional structure of the gas meter detection line;

[0033] Figure 5 It is a schematic diagram of the three-dimensional structure of the feeding device;

[0034] Figure 6 It is a three-dimensional cross-sectional schematic diagram of the loading mechanism;

[0035] Figure 7 It is a three-dimensional structural diagram of the supporting mechanism;

[0036] Figure 8 is a schematic diagram of the three-dimensional structure of the first transfer device;

[0037] Figure 9 yes Figure 4 A magnified schematic diagram of B in the middle;

[0038] Figure 10 yes Figure 4 A magnified schematic diagram of middle C;

[0039] Figure 11 It is a three-dimensional cross-sectional schematic diagram of the third transfer device.

[0040] Explanation of reference numerals: 11, conveyor belt; 111, feeding belt; 112, unloading belt; 1121, first unloading belt; 1122, second unloading belt; 113, return belt; 1131, return belt; 1132, splicing belt; 114, main conveyor belt; 1141, first conveyor belt; 1142, second conveyor belt; 115, intermediate belt; 1151, first detection belt; 1152, second detection belt; 1153, Feeding belt; 1154, temporary holding belt; 12, bracket; 13, driving member; 3, loading device; 31, mounting frame 1; 32, positioning mechanism; 321, positioning cylinder 1; 322, positioning clamp; 323, positioning cylinder 2; 324, positioning rod; 325, mounting plate; 326, fixing block; 33, supporting mechanism; 331, supporting plate; 332, driving cylinder; 34, loading mechanism; 341, lifting cylinder; 342, lifting plate; 35, lifting mechanism; 351, lifting cylinder; 352, clamping rod; 353, lifting plate; 4, first transfer device; 41, mounting frame 2; 42, pushing mechanism; 421, pushing cylinder; 422, pushing rod; 43, lifting mechanism; 431, lifting cylinder; 432, carrying platform; 5, second transfer device; 51, mounting frame 3; 52, lowering mechanism; 521, lowering cylinder; 522 , mounting table; 53, moving mechanism; 531, moving motor; 532, moving belt; 6, third transfer device; 61, mounting frame four; 62, transfer mechanism; 621, transfer belt; 622, transfer motor; 63, lifting mechanism; 631, lifting cylinder; 632, lifting platform; 64, guard plate; 65, telescopic cylinder; 66, transmission belt; 67, connecting frame; 7, pallet; 71, placement seat; 72, positioning hole. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1 -Attached Figure 11 This application is described in further detail.

[0042] The embodiment of the present application discloses a gas meter detection line, as shown in the attached Figure 1 As shown, the test line includes a conveying device, a loading device 3, a first transfer device 4, a second transfer device 5 and a third transfer device 6. The conveying device is used to transport the gas meter tray 7. To ensure stable transportation, as shown in the attached Figure 2 As shown, a placement seat 71 for loading the gas meter is fixedly provided on the tray 7, and a positioning hole 72 for connecting with the loading device 3 is opened from top to bottom on the tray 7. When the tray 7 is transported to the loading device 3, the tray 7 is positioned by the loading device 3, so that the gas meter can be accurately inserted into the placement seat 71, avoiding shaking of the gas meter during transportation and detection, which affects the transportation and detection results.

[0043] For conveying devices, such as Figure 3As shown, it specifically includes a conveyor belt 11, a bracket 12 for supporting and installing the conveyor belt 11, and a driving member 13 for driving the conveyor belt 11. The conveyor belt 11 includes a loading belt 111, a unloading belt 112, a main conveyor belt 114, a return belt 113, and an intermediate belt 115. The main conveyor belt 114 includes a first conveyor belt 1141 and a second conveyor belt 1142. The intermediate belt 115 includes a first detection belt 1151, a second detection belt 1152, a feeding belt 1153, and a temporary holding belt 1154. The unloading belt 112 includes a qualified product belt and a failed product belt. The return belt 113 includes a splicing belt 1132 and a return belt 1131. In this embodiment, the various conveyor belts 11 are driven by independent driving members 13, and the corresponding brackets 12 are also independently provided. The driving members 13 are fixedly mounted on the corresponding brackets 12, which is convenient for the later maintenance of the detection line. In addition, the driving of the various conveyor belts 11 is independently operated, which is convenient for control and improves the degree of automation. A metrological performance detection station is set at the first detection belt 1151, and an airtightness detection station is set at the second detection belt 1152. In other embodiments, the detection station type can also be replaced according to the corresponding detection items. In addition, the first transfer device 4 is used for transferring the pallet 7 between the return belt 113 and the loading belt 111, and can transfer the pallet 7 on the return belt 113 to the loading belt 111. The second transfer device 5 is used for transferring the pallet 7 between the receiving belt 1132 and the return belt 113. The third transfer device 6 is used for transferring the pallet 7 between the two connected conveyor belts 11.

[0044] Attachment Figure 1 This is a top view of the detection line, which is rectangular in shape as a whole, which is convenient for the layout of the detection line in the factory and for the first transfer device 4, the second transfer device 5 and the third device to transfer the tray 7.

[0045] In this embodiment, the attached Figure 1The front and back, left and right, and up and down directions are used as the reference for explanation. Among them, the loading belt 111 is set at the back side of the detection line, and the conveying direction of the loading belt 111 is from right to left. The loading device 3 is set at the right edge of the loading belt 111, and can load the gas meter to be tested onto the empty tray 7 on the loading belt 111; the first conveyor belt 1141 is set at the leftmost side of the detection line, and the conveying direction of the first conveyor belt 1141 is from back to front, and the rear starting end is connected to the end of the loading belt 111 through the third transfer device 6; the second conveyor belt 1142 is set at the rightmost side of the detection line, and the conveying direction of the second conveyor belt 1142 is from back to front, and the length of the second conveyor belt 1142 in the front and back direction is The length is slightly shorter than the first conveyor belt 1141; a plurality of intermediate belts 115 are connected between the first conveyor belt 1141 and the second conveyor belt 1142. Specifically, a first detection belt 1151, a feeding belt 1153, a temporary holding belt 1154 and six second detection belts 1152 are arranged in sequence from back to front, wherein the first detection belt 1151 and the temporary holding belt 1154 convey in a left-to-right direction, and the feeding belt 1153 and the second detection belt 1152 convey in a right-to-left direction; in addition, a third transfer device 6 is arranged between the intermediate belt 115 and the first conveyor belt 1141 and the second conveyor belt 1142 to transfer the pallet 7;

[0046] The unloading belt 112 is connected between the first conveyor belt 1141 and the return belt 113 and is located at the front side of the detection line. The unloading belt 112 is connected to the first conveyor belt 1141 and the return belt 113 through the third transfer device 6. The conveying direction of the unloading belt 112 is from left to right. Specifically, the qualified product line is located at the rear side of the unqualified product line. The qualified gas meters on the qualified product line can be grabbed out by a robot, and the gas meters on the unqualified product line can be manually inspected and then decided whether to conduct a secondary inspection. The gas meters that need to be subjected to a secondary inspection are left on the unloading line, and the gas meters that do not need to be subjected to a secondary inspection can be manually removed from the unloading line. In addition, in order to facilitate the distinction between the gas meters for the first inspection and the gas meters for the second inspection, the gas meters that need to be subjected to a secondary inspection on the unloading line can be marked during the manual inspection process. It should be noted that the mark is only used to distinguish the gas meters for the first inspection and the gas meters for the second inspection, and will not affect the performance, transportation and inspection results of the gas meters.

[0047] As attached Figure 4 As shown, the return belt 113 is located at the rightmost side of the detection line, and the conveying direction is from front to back, wherein the connecting belt 1132 is connected to the unloading belt 112, the return belt 1131 is lower than the connecting belt 1132, and the return belt 1131 is located directly below the second conveyor belt 1142, so as to improve space utilization. The starting end of the return belt 1131 and the end of the connecting belt 1132 are connected by the second transfer device 5, and the end of the return belt 1131 and the starting end of the loading belt 111 are connected by the first transfer device 4.

[0048] In this embodiment, the loading belt 111, the first conveyor belt 1141, the unloading belt 112 and the return belt 113 are connected end to end in sequence, and the pallet 7 is circulated along the loading belt 111, the first conveyor belt 1141, the unloading belt 112 and the return belt 113. The pallet 7 transported on the first conveyor belt 1141 can be sent to the intermediate belt 115 for inspection according to the inspection requirements. After the inspection is completed, the pallet 7 is sent back to the first conveyor belt 1141.

[0049] During the conveying process of the pallet 7, the pallet 7 will be lifted and lowered and transferred at right angles. To facilitate the transfer of the pallet 7, the loading belt 111, the unloading belt 112, the main conveyor belt 114, the return belt 113 and the intermediate belt 115 all use double belts, and the two belts are parallel and spaced apart.

[0050] For the feeding device 3, as shown in the attached Figure 5 , Attachment Figure 6 And attached Figure 7 As shown, it includes a mounting frame 1 31, a lifting mechanism 35, a positioning mechanism 32, a supporting mechanism 33, and a loading mechanism 34. Specifically, the mounting frame 1 31 is fixed to the ground at the starting end of the feeding belt 111, the positioning mechanism 32, the supporting mechanism 33, and the loading mechanism 34 are fixedly mounted on the mounting frame 1 31, and the lifting mechanism 35 is fixedly mounted on the bracket 12 of the feeding belt 111.

[0051] The lifting mechanism 35 includes a lifting cylinder 351, a lifting plate 353 installed at the output end of the lifting cylinder 351, and a clamping rod 352 fixed on the lifting plate 353 for inserting into the positioning hole 72. In this embodiment, the lifting cylinder 351 is vertically arranged and fixed between the two belts of the feeding belt 111. When the feeding belt 111 transports the empty pallet 7 to the top of the lifting plate 353, the feeding belt 111 stops. At this time, the lifting cylinder 351 starts and drives the lifting plate 353 to rise and abut against the pallet 7. The clamping rod 352 is inserted into the positioning hole 72 to locate the position of the pallet 7. There are four positioning holes 72 and four clamping rods 352. The lifting plate 353 continues to rise and lifts the pallet 7 off the feeding belt 111 to facilitate loading the gas meter.

[0052] The loading mechanism 34 includes a lifting cylinder 341 fixed on the mounting frame 31, a lifting plate 342 installed at the output end of the lifting cylinder 341, and the positioning mechanism 32 is fixed on the lifting plate 342; the positioning mechanism 32 includes a positioning cylinder 1 321 and a positioning cylinder 2 323 fixed on the lifting plate 342, a positioning splint 322 installed at the output end of the positioning cylinder 1 321, a positioning rod 324 installed at the output end of the positioning cylinder 2 323, and a fixing block 326 fixed on the positioning splint 322, the moving direction of the positioning splint 322 is perpendicular to the moving direction of the positioning rod 324. In this embodiment, the moving direction of the positioning splint 322 is parallel to the moving direction of the feeding belt 111, and the moving direction of the positioning rod 324 is perpendicular to the moving direction of the feeding belt 111; the supporting mechanism 33 includes a driving cylinder 332 fixed on the mounting frame 31, and a supporting plate 331 installed at the output end of the driving cylinder 332. In this embodiment, the supporting mechanism 33 is located below the positioning mechanism 32, and the supporting plate 331 is extended by the driving cylinder 332 to support the gas meter to be tested on the production line, so as to facilitate the positioning of the positioning mechanism 32. The gas meter to be tested on the production line is transferred to the supporting plate 331 by the robotic arm; the positioning cylinder 1 321 drives the positioning clamping plate 322 to move and adjust the position of the gas meter to be tested and clamp the gas meter to be tested, and the positioning cylinder 2 323 drives the positioning rod 324 to move, and the positioning rod 324 and the fixed block 326 cooperate with the position of the gas meter to be tested and position it, so that the gas meter to be tested is matched with the placement seat 71 on the tray 7 in the vertical direction. At this time, the supporting plate 331 is retracted under the drive of the driving cylinder 332, and the lifting plate 342 moves downward under the drive of the lifting cylinder 341 and loads the gas meter onto the placement seat 71, and then the positioning mechanism 32 releases the gas meter, the lifting mechanism 35 resets and places the tray 7 back on the loading belt 111.

[0053] It should be further explained that the first transfer device 4 will re-transport the gas meter that needs a second inspection to the loading belt 111. At this time, a tray 7 already loaded with a gas meter will be moved to the loading device 3. Therefore, a corresponding sensor can be set on the mounting frame 1 31 to detect whether there is a gas meter on the tray 7. When there is a gas meter on the tray 7, the lifting cylinder 341 does not operate, thereby avoiding the loading interference between the gas meter detected for the first time and the gas meter detected for the second time. In addition, the positioning of the gas meter in the loading device 3 and whether there is a gas meter on the tray 7 on the loading belt 111 do not affect each other, that is, when the tray 7 transported on the loading belt 111 has a gas meter that needs a second inspection, the loading device 3 can still position the gas meter transferred by the robot arm, so that after the empty tray 7 is transported to the loading device 3, the positioning time of the gas meter can be saved, thereby improving the loading efficiency.

[0054] For the first transfer device 4, as shown in the attached Figure 8As shown, it includes a mounting frame 41, a pushing mechanism 42 installed on the mounting frame 41, and a lifting mechanism 43, wherein the lifting mechanism 43 includes a lifting cylinder 431 fixed on the mounting frame 41, and a supporting platform 432 installed at the output end of the lifting cylinder 431; the pushing mechanism 42 includes a pushing cylinder 421 fixed on the mounting frame 41, and a push rod 422 installed at the output end of the pushing cylinder 421.

[0055] In this embodiment, the carrier 432 is used to receive the tray 7 conveyed by the return conveyor 113, and the push rod 422 is capable of pushing the tray 7 on the carrier 432 onto the loading conveyor 111. The push rod 422 matches the height of the loading conveyor 111. Specifically, the carrier 432 first receives the tray 7, and then the lifting cylinder 431 drives the carrier 432 upward until the push rod 422 and the tray 7 on the carrier 432 are on the same horizontal plane. At this time, the push rod 422, driven by the pushing cylinder 421, pushes the tray 7 onto the loading conveyor 111, completing the transfer of the tray 7, and then the pushing mechanism 42 and the lifting mechanism 43 are reset.

[0056] For the second transfer device 5, as shown in the attached Figure 9 As shown, it includes a mounting frame 3 51, a descending mechanism 52 installed on the mounting frame 3 51, and a moving mechanism 53. The descending mechanism 52 includes a descending cylinder 521 fixed on the mounting frame 3 51, and a mounting platform 522 installed at the output end of the descending cylinder 521; the moving mechanism 53 includes a moving belt 532 installed on the mounting platform 522, and a moving motor 531 that drives the moving belt 532.

[0057] Specifically, the mounting platform 522 is initially located at the upper limit position. After the movable belt 532 receives the pallet 7, the mounting platform 522 moves downward under the drive of the descending cylinder 521 until the movable belt 532 is flush with the return belt 1131. At this time, the movable belt 532 transfers the pallet 7 to the return belt 1131 under the drive of the moving motor 531.

[0058] In this embodiment, the cylinder piston rod is fixedly connected to the movable member at its corresponding output end. In other embodiments, the connection may also be through a floating joint.

[0059] For the third transfer device 6, as shown in the attached Figure 10 , Attachment Figure 11As shown, it includes a mounting frame 4 61, a transfer mechanism 62 installed on the mounting frame 4 61, and a lifting mechanism 63. The lifting mechanism 63 includes a lifting cylinder 631 fixed on the mounting frame 4 61, and a lifting platform 632 installed on the output end of the lifting cylinder 631; the transfer mechanism 62 includes a transfer belt 621 installed on the lifting platform 632, and a transfer motor 622 that drives the transfer belt 621. In this embodiment, the third transfer device 6 between the first conveyor belt 1141 and the second detection belt 1152 is taken as an example to illustrate. The pallet 7 on the second detection belt 1152 needs to be transferred to the first conveyor belt 1141. A guard plate 64 is set on the side of the bracket 12 of the first conveyor belt 1141 away from the second detection belt 1152 to prevent the pallet 7 from falling. Initially, the lifting platform 632 is located below the first conveyor belt 1141 to avoid affecting the transmission of the pallet 7 on the first conveyor belt 1141. When it is necessary to receive the pallet 7 on the second detection belt 1152, the lifting cylinder 631 drives the lifting platform 632 to rise to receive the pallet 7. After receiving the pallet 7, the transfer motor 622 is started and the transfer belt 621 completely transports the pallet 7 to the lifting platform 632. At this time, the lifting cylinder 631 descends and places the pallet 7 on the first conveyor belt 1141.

[0060] Specifically, a lifting cylinder 631 is fixed to the top of the mounting frame 24 61, and a lifting platform 632 is installed on the top of the lifting cylinder 631. Two transfer belts 621 are connected to the lifting platform 632. The conveying direction of the transfer belts 621 is the same as that of the second detection belt 1152. The transfer motor 622 is fixed inside the mounting frame 24 61. Its output end is connected to the transmission belt 66. The driven end of the transmission belt 66 is connected to the two transfer belts 621 via a rotating shaft. A connecting frame 67 is also provided inside the mounting frame 24 61 for connecting the rotating shaft. A telescopic cylinder 65 is provided on the top of the mounting frame 24 61. The telescopic cylinder 65 is connected to the connecting frame 67. When the lifting platform 632 lifts the tray 7 up and down, the telescopic cylinder 65 extends and retracts and drives the connecting frame 67 to move up and down, thereby maintaining the tension of the transfer belts 621 and ensuring transfer reliability.

[0061] This application also discloses an embodiment of a detection method, which specifically includes the following steps:

[0062] S1: The loading belt 111 conveys the tray 7 to the loading device 3. When there is no gas meter on the tray 7, the gas meter to be tested is positioned and loaded onto the tray 7 by the loading device 3. When there is a gas meter on the tray 7, the loading belt 111 conveys the tray 7 to the first conveyor belt 1141.

[0063] S2: The first conveyor belt 1141 transfers the tray 7 loaded with gas meters to the first detection belt 1151. The first detection belt 1151 performs a metering performance test on the gas meters on the tray 7. After the test is completed, the first detection belt 1151 conveys the tray 7 loaded with gas meters to the second conveyor belt 1142.

[0064] S3: The second conveyor belt 1142 transfers the tray 7 loaded with gas meters to the feed belt 1153. The feed belt 1153 then transfers the tray 7 loaded with gas meters to the first conveyor belt 1141. Based on the inspection results in step S2, qualified gas meters are transferred to the temporary holding belt 1154, and unqualified gas meters are transferred to the unloading belt 112.

[0065] S4: The temporary holding belt 1154 transfers the tray 7 loaded with gas meters to the second conveyor belt 1142, which then transfers the tray 7 loaded with gas meters to the second inspection belt 1152 for air tightness testing. After the test, the second inspection belt 1152 conveys the tray 7 loaded with gas meters to the first conveyor belt 1141, and then the first conveyor belt 1141 transfers the tray 7 loaded with gas meters to the unloading belt 112;

[0066] S5: The gas meter that has passed the test is removed from the tray 7 on the unloading belt 112, and the empty tray 7 is transferred to the return belt 113 through the unloading belt 112; the unloading belt 112 transfers the gas meter that has failed the test together with the tray 7 to the return belt 113;

[0067] S6: The return conveyor 113 returns the empty pallet 7 or the pallet 7 loaded with the gas meter to the first transfer device 4, and the empty pallet 7 or the pallet 7 loaded with the gas meter is transferred to the loading conveyor 111 through the first transfer device 4.

[0068] Furthermore, step S31 is also included between step S3 and step S4: before transferring the tray 7 loaded with gas meters to the second conveyor belt 1142, check whether there is a gas meter to be tested on the second detection belt 1152. If not, the temporary belt 1154 transfers the tray 7 loaded with gas meters to the second conveyor belt 1142; if yes, the temporary belt 1154 stops running, and the tray 7 loaded with gas meters stays on the temporary belt 1154 until there are no gas meters to be tested on the second detection belt 1152.

[0069] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A gas meter detection line, characterized in that: include: A conveying device for conveying a gas meter tray (7), the conveying device comprising a conveyor belt (11), a bracket (12) for mounting the conveyor belt (11), the conveyor belt (11) comprising a feed belt (111), a feed belt (112), a main conveyor belt (114), a return belt (113), and an intermediate belt (115), the feed belt (111), the feed belt (112), the main conveyor belt (114), the return belt (113), and the intermediate belt (115) being driven by an independent driving member (13), the driving member (13) being fixed to the bracket (12), wherein: The main conveyor belt (114) includes a first conveyor belt (1141) and a second conveyor belt (1142), a plurality of intermediate belts (115) are connected between the first conveyor belt (1141) and the second conveyor belt (1142), the loading belt (111), the first conveyor belt (1141), the unloading belt (112) and the return belt (113) are connected end to end in sequence, and the pallet (7) is cyclically transported along the loading belt (111), the first conveyor belt (1141), the unloading belt (112) and the return belt (113); The intermediate belt (115) includes a first detection belt (1151), a second detection belt (1152), a feeding belt (1153) and a temporary holding belt (1154), wherein the first detection belt (1151) and the temporary holding belt (1154) are used to transport the tray (7) on the first conveyor belt (1141) to the second conveyor belt (1142), and the second detection belt (1152) and the feeding belt (1153) are used to transport the tray (7) on the second conveyor belt (1142) to the first conveyor belt (1141); The detection line also includes: a loading device (3), which is arranged at the initial end of the loading belt (111) and is used to load the gas meter to be tested onto the empty tray (7) on the loading belt (111); A first transfer device (4) is provided at the end of the return belt (113) and the initial end of the loading belt (111), and is used to transfer the tray (7) on the return belt (113) to the loading belt (111); The first transfer device (4) includes a second mounting frame (41), a pushing mechanism (42) and a lifting mechanism (43) installed on the second mounting frame (41), wherein: the lifting mechanism (43) includes a lifting cylinder (431) fixed on the second mounting frame (41), and a supporting platform (432) installed at the output end of the lifting cylinder (431) for receiving the pallet (7) transported by the return belt (113); the pushing mechanism (42) includes a pushing cylinder (421) fixed on the second mounting frame (41), and a pushing rod (422) installed at the output end of the pushing cylinder (421) and used to push the pallet (7) on the supporting platform (432) to the loading belt (111).

2. The gas meter detection line according to claim 1, characterized in that: The loading belt (111), the unloading belt (112), the main conveyor belt (114), the return belt (113), and the intermediate belt (115) each include two belts, and the two belts are arranged in parallel and at intervals.

3. The gas meter detection line according to claim 1 or 2, characterized in that: A placement seat (71) for loading a gas meter is fixedly provided on the tray (7), and a positioning hole (72) for connecting to the loading device (3) is provided through the tray (7) from top to bottom.

4. The gas meter detection line according to claim 3, characterized in that: The feeding device (3) includes a lifting mechanism (35), which is installed on the bracket (12) for supporting the feeding belt (111). The lifting mechanism (35) includes a lifting cylinder (351) fixed on the bracket (12), a lifting plate (353) installed at the output end of the lifting cylinder (351), and a clamping rod (352) fixed on the lifting plate (353) for plugging into the positioning hole (72).

5. The gas meter detection line according to claim 4, characterized in that: The loading device (3) further comprises a mounting frame (31), a positioning mechanism (32) mounted on the mounting frame, a supporting mechanism (33), and a loading mechanism (34), wherein: the loading mechanism (34) comprises a lifting cylinder (341) fixed on the mounting frame (31), a lifting plate (342) mounted on the output end of the lifting cylinder (341), and the positioning mechanism (32) is fixedly mounted on the lifting plate (342); the positioning mechanism (32) comprises a positioning cylinder (321) and a positioning cylinder (323) fixed on the lifting plate (342), a positioning clamp (322) mounted on the output end of the positioning cylinder (321), a positioning rod (324) mounted on the output end of the positioning cylinder (323), and a fixing block (326) fixed on the positioning clamp (322), wherein the positioning clamp (322) is perpendicular to the moving direction of the positioning rod (324); The supporting mechanism (33) comprises a driving cylinder (332) fixed on the first mounting frame (31) and a supporting plate (331) installed at the output end of the driving cylinder (332).

6. The gas meter detection line according to claim 1, characterized in that: The return belt (113) includes a splicing belt (1132) and a return belt (1131), the starting end of the splicing belt (1132) is connected to the end of the unloading belt (112), the end of the return belt (1131) is connected to the starting end of the loading belt (111), and the end of the splicing belt (1132) is connected to the starting end of the return belt (1131). The inspection line also includes a second transfer device (5) arranged at the end of the splicing belt (1132) and the starting end of the return belt (1131), for transferring the tray (7) on the splicing belt (1132) to the return belt (1131). The second transfer device (5) The conveying device (5) includes a mounting frame (51), a descending mechanism (52) mounted on the mounting frame (51), and a moving mechanism (53). The descending mechanism (52) includes a descending cylinder (521) fixed on the mounting frame (51), and a mounting platform (522) mounted on the output end of the descending cylinder (521). The moving mechanism (53) includes a moving belt (532) mounted on the mounting platform (522) and a moving motor (531) driving the moving belt (532). The moving belt (532) is used to transfer the tray (7) at the end of the receiving belt (1132) to the return belt (1131).

7. The gas meter detection line according to claim 1, characterized in that: The inspection line further includes a plurality of sets of third transfer devices (6), wherein the third transfer devices (6) are provided between the upper material belt (111) and the main conveyor belt (114), between the lower material belt (112) and the main conveyor belt (114), between the intermediate belt (115) and the main conveyor belt (114), and between the lower material belt (112) and the return belt (113). The third transfer devices (6) include a mounting frame four (61), a mounting frame four (61) mounted on the mounting frame four (61), and a mounting frame four (61) mounted on the mounting frame four (61). ) on the transfer mechanism (62) and the lifting mechanism (63), the lifting mechanism (63) including a lifting cylinder (631) fixed on the mounting frame four (61), a lifting platform (632) installed at the output end of the lifting cylinder (631), the transfer mechanism (62) including a transfer belt (621) installed on the lifting platform (632), a transfer motor (622) driving the transfer belt (621), and the transfer motor (622) fixed on the mounting frame four (61).

8. A method for detecting a gas meter detection line using the method of claim 1, characterized in that: The method comprises the following steps: S1: a loading belt (111) transports a tray (7) to a loading device (3); when no gas meter is loaded on the tray (7), the gas meter to be tested is positioned and loaded onto the tray (7) by the loading device (3); when a gas meter is loaded on the tray (7), the loading belt (111) transports the tray (7) to a first conveyor belt (1141); S2: the first conveyor belt (1141) transfers the tray (7) loaded with the gas meter to a first detection belt (1151), and performs a metering performance test on the gas meter to be tested on the tray (7) on the first detection belt (1151); after the test is completed, the first detection belt (1151) transports the tray (7) loaded with the gas meter to a second conveyor belt (1142); S3: The second conveyor belt (1142) transfers the tray (7) loaded with gas meters to the feeding belt (1153), and then the feeding belt (1153) transfers the tray (7) loaded with gas meters to the first conveyor belt (1141). Based on the test results in step S2, qualified gas meters are transferred to the temporary holding belt (1154), and unqualified gas meters are transferred to the unloading belt (112); S4: The temporary belt (1154) transfers the tray (7) loaded with the gas meter to the second conveyor belt (1142), and then transfers the tray (7) loaded with the gas meter to the second detection belt (1152) through the second conveyor belt (1142) for air tightness testing. After the test is completed, the second detection belt (1152) conveys the tray (7) loaded with the gas meter to the first conveyor belt (1141), and then the first conveyor belt (1141) transfers the tray (7) loaded with the gas meter to the unloading belt (112); S5: On the unloading belt (112), the gas meter that passes the test is removed from the tray (7), and the empty tray (7) is transferred to the return belt (113) through the unloading belt (112); the unloading belt (112) transfers the gas meter that fails the test together with the tray (7) to the return belt (113); S6: The return conveyor (113) returns the empty pallet (7) or the pallet (7) loaded with the gas meter to the first transfer device (4), and the empty pallet (7) or the pallet (7) loaded with the gas meter is transferred to the loading conveyor (111) through the first transfer device (4).

9. The detection method according to claim 8, characterized in that Between step S3 and step S4, step S31 is also included: before transferring the tray (7) loaded with the gas meter to the second conveyor belt (1142), whether there is a gas meter to be tested on the second detection belt (1152) is detected; if not, the temporary belt (1154) transfers the tray (7) loaded with the gas meter to the second conveyor belt (1142); if so, the temporary belt (1154) stops running, and the tray (7) loaded with the gas meter stays on the temporary belt (1154) until there is no gas meter to be tested on the second detection belt (1152).

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