阅读说明：本技术 安全阀上下料设备和安全阀测试机 (Safety valve feeding and discharging equipment and safety valve testing machine ) 是由 翟志强 凌勇 李文靖 康扬 罗兴涛 刘爽 于 2019-10-10 设计创作，主要内容包括：本发明涉及一种安全阀上下料设备和安全阀测试机,包括存放机构、第一移载机构、第二移载机构、第一顶紧机构和加紧机构；存放机构包括多个用于放置安全阀的托盘；在安全阀上料过程中,第一移载机构用于将托盘移载至第二移载机构的第一上下料工位；第二移载机构用于将托盘移载至第一顶级机构的第二上下料工位；第一顶紧机构用于将托盘移载至安全阀的测试工位；加紧机构用于加紧托盘,以便安全阀完成测试；在安全阀下料过程中,加紧机构用于松开托盘,第一顶紧机构用于将托盘移从测试工位载至第二上下料工位；第二移载机构用于将托盘从第二上下料工位移载至第一上下料工位,并将托盘从第一上下料工位移除,从而提高了安全阀的测试效率。(The invention relates to a safety valve feeding and discharging device and a safety valve testing machine, which comprise a storage mechanism, a first transfer mechanism, a second transfer mechanism, a first jacking mechanism and a clamping mechanism, wherein the storage mechanism is used for storing a safety valve; the storage mechanism comprises a plurality of trays for placing the safety valves; in the safety valve feeding process, the first transfer mechanism is used for transferring the tray to a first feeding and discharging station of the second transfer mechanism; the second transfer mechanism is used for transferring the tray to a second loading and unloading station of the first top-level mechanism; the first jacking mechanism is used for transferring the tray to a test station of the safety valve; the clamping mechanism is used for clamping the tray so that the safety valve can complete the test; in the discharging process of the safety valve, the clamping mechanism is used for loosening the tray, and the first jacking mechanism is used for moving the tray from the testing station to the second feeding and discharging station; the second moves and carries the mechanism and is used for moving the tray from the second to go up unloading station and carry to the first unloading station of going up to remove the tray from the first unloading station of going up, thereby improved the efficiency of software testing of relief valve.)

1. The safety valve loading and unloading equipment is characterized by comprising a storage mechanism, a first transfer mechanism, a second transfer mechanism, a first jacking mechanism and a clamping mechanism;

the storage mechanism, the first transfer mechanism, the second transfer mechanism, the first jacking mechanism and the clamping mechanism are sequentially arranged from an upstream process to a downstream process;

the storage mechanism comprises a plurality of trays for placing the safety valves;

in the safety valve feeding process, the first transfer mechanism is used for transferring the tray to a first feeding and discharging station of the second transfer mechanism; the second transfer mechanism is used for transferring the tray to a second loading and unloading station of the first top-level mechanism; the first jacking mechanism is used for transferring the tray to a test station of the safety valve; the clamping mechanism is used for clamping the tray so that the safety valve can complete the test;

in the blanking process of the safety valve, the clamping mechanism is used for loosening the tray, and the first jacking mechanism is used for moving the tray from the test station to the second loading and unloading station; the second transfer mechanism is used for transferring the tray from the second loading and unloading station to the first loading and unloading station and removing the tray from the first loading and unloading station.

2. The safety valve loading and unloading apparatus according to claim 1, wherein the first transfer mechanism includes two first clamp plates for gripping the tray and a transfer cylinder corresponding to each of the first clamp plates;

the transfer cylinder is used for driving the first clamping plate to clamp or put down the tray so as to transfer the tray to the first loading and unloading station.

3. The safety valve loading and unloading device according to claim 2, wherein the second transfer mechanism comprises a placing frame, a transfer motor, a gear, a rack, a turnover plate and a turnover cylinder;

the rack is arranged on the placing frame and meshed with the gear;

the transfer motor is connected with the gear;

the turnover plate is arranged on the turnover cylinder;

the overturning air cylinder is arranged on the placing frame;

the tray is provided with a positioning block, and the turnover plate is provided with a positioning groove matched with the positioning block;

the placing frame is the first loading and unloading station so as to place the tray;

the shifting motor is used for driving the gear to move so that the gear drives the placing frame to move;

the turnover cylinder is used for driving the turnover plate to act, so that the positioning block is separated from the positioning groove, and the tray is conveniently separated from the placing frame.

4. The safety valve loading and unloading device according to claim 3, further comprising a first housing member, a second housing member, an electric pushing member, and a flow dividing passage;

the first accommodating component is positioned on one side of the placing frame, where the rack is arranged;

the second accommodating member is positioned in a downstream process of the flow dividing passage;

the flow dividing channel is positioned on one side of the first jacking mechanism, which is far away from the clamping mechanism;

the electric pushing component is positioned on one side of the first jacking mechanism close to the clamping mechanism;

the electric pushing component is used for pushing a target safety valve from the tray to the diversion channel so that the target safety valve flows into the second containing component;

the first containing part is used for containing the tray and a remaining safety valve positioned on the tray when the tray is separated from the placing frame.

5. The safety valve loading and unloading device according to claim 3, wherein the storage machine is arranged in a layered structure;

each layer is provided with at least one tray; the tray is provided with at least one positioning structure matched with the safety valve structure;

after the current layer of trays are transferred to the first loading and unloading station, the first clamping plate separates the rest trays from the current layer of trays.

6. The safety valve loading and unloading device according to claim 5, wherein the tray is further provided with positioning holes;

the positioning blocks of two adjacent layers of trays are matched with the positioning blocks.

7. The safety valve loading and unloading device according to claim 1, wherein the clamping mechanism comprises a second clamping plate, a third clamping plate and a clamping cylinder;

sealing gaskets are arranged on one sides of the second clamping plate and the third clamping plate, which are used for clamping the safety valve, and the sealing gaskets are used for sealing the safety valve;

the second clamping plate is fixedly arranged;

the clamping cylinder drives the third clamping plate to move so as to clamp or loosen the safety valve.

8. A safety valve testing machine is characterized by comprising a human-computer interaction device, a control device, a testing device and a safety valve loading and unloading device according to any one of claims 1-7;

the human-computer interaction equipment, the testing equipment and the safety valve feeding and discharging equipment are respectively connected with the control equipment;

the test equipment is also connected with a safety valve test interface of the clamping mechanism in the safety valve feeding and discharging equipment;

the human-computer interaction equipment is used for setting test parameters of the safety valve and sending a test instruction of the safety valve to the control device;

the control equipment is used for controlling the operation of the test equipment according to the test parameters, controlling the operation of the loading and unloading equipment of the safety valve according to the test instruction, and sending the test information of the safety valve to the human-computer interaction equipment;

the human-computer interaction equipment is also used for outputting the test information of the safety valve.

9. The safety valve testing machine according to claim 8, wherein the testing apparatus includes a pressure medium conveying mechanism, a plurality of pressure adjusting mechanisms, and a pressure switching mechanism;

each pressure adjusting mechanism is respectively connected with the pressure medium conveying mechanism and the pressure switching mechanism;

the pressure switching mechanism is respectively connected with the control equipment and the test interface;

the pressure medium conveying mechanism conveys pressure medium to the pressure adjusting mechanism;

the pressure adjusting mechanism adjusts the pressure medium to different test pressures required by the safety valve;

and the control equipment controls the pressure switching mechanism to switch the target test pressure so as to enable the target pressure adjusting mechanism corresponding to the target test pressure to be communicated with the test interface.

10. The safety valve testing machine as set forth in claim 9, wherein the testing apparatus further comprises a media handling mechanism;

each pressure adjusting mechanism is connected with the pressure medium conveying mechanism through the medium processing mechanism;

the medium processing mechanism is used for filtering the pressure medium conveyed by the pressure medium conveying mechanism.

Technical Field

The invention relates to the technical field of safety valve detection, in particular to a safety valve feeding and discharging device and a safety valve testing machine.

Background

The safety valve is a special valve, wherein the opening and closing part is in a normally closed state under the action of external force, and when the pressure of a medium in equipment or a pipeline rises to exceed a specified value, the medium is discharged to the outside of the system to prevent the pressure of the medium in the pipeline or the equipment from exceeding the specified value.

The safety valve needs to be tested for external pressure relief and internal pressure relief performance after manufacture is completed. Under the condition of Yongchang, 4 levels of test pressure are adopted to pressurize the test tube so as to detect whether the working state reaches the standard or not. Specifically, the water inlet is pressurized, and after the pressurization reaches a set value, the external pressure relief port and the pressure relief condition after water outlet are detected. Wherein the test criteria are as follows: (taking a safety valve with the opening pressure of 0.7Mpa as an example), the set value of internal pressure relief is 0.15Mpa, and the test pressure is set to be 0.1Mpa and 0.2 Mpa; the external pressure relief setting was 0.7Mpa, and the test pressures were set at one 0.65Mpa and one 0.75 Mpa.

However, in the prior art, when testing the safety valve, the safety valve is often manually sent to a test area. Like this, in the test process of relief valve, because artifical pay-off efficiency is lower, appear the untimely phenomenon of material loading easily, lead to unable continuous feed in the relief valve test process, cause the efficiency of software testing of relief valve lower.

Disclosure of Invention

In view of this, the present invention provides a safety valve loading and unloading apparatus and a safety valve testing machine, and solves the problem of low testing efficiency of the safety valve in the prior art.

In order to achieve the above purpose, the present invention provides a safety valve loading and unloading device, which comprises a storage mechanism, a first transfer mechanism, a second transfer mechanism, a first jacking mechanism and a clamping mechanism;

the storage mechanism, the first transfer mechanism, the second transfer mechanism, the first jacking mechanism and the clamping mechanism are sequentially arranged from an upstream process to a downstream process;

the storage mechanism comprises a plurality of trays for placing the safety valves;

in the safety valve feeding process, the first transfer mechanism is used for transferring the tray to a first feeding and discharging station of the second transfer mechanism; the second transfer mechanism is used for transferring the tray to a second loading and unloading station of the first top-level mechanism; the first jacking mechanism is used for transferring the tray to a test station of the safety valve; the clamping mechanism is used for clamping the tray so that the safety valve can complete the test;

in the blanking process of the safety valve, the clamping mechanism is used for loosening the tray, and the first jacking mechanism is used for moving the tray from the test station to the second loading and unloading station; the second transfer mechanism is used for transferring the tray from the second loading and unloading station to the first loading and unloading station and removing the tray from the first loading and unloading station.

Further, in the safety valve loading and unloading device, the first transfer mechanism includes two first clamping plates for clamping the tray and a transfer cylinder corresponding to each first clamping plate;

the transfer cylinder is used for driving the first clamping plate to clamp or put down the tray so as to transfer the tray to the first loading and unloading station.

Further, in the safety valve loading and unloading device, the second transfer mechanism comprises a placing frame, a transfer motor, a gear, a rack, a turnover plate and a turnover cylinder;

the rack is arranged on the placing frame and meshed with the gear;

the transfer motor is connected with the gear;

the turnover plate is arranged on the turnover cylinder;

the overturning air cylinder is arranged on the placing frame;

the tray is provided with a positioning block, and the turnover plate is provided with a positioning groove matched with the positioning block;

the placing frame is the first loading and unloading station so as to place the tray;

the shifting motor is used for driving the gear to move so that the gear drives the placing frame to move;

the turnover cylinder is used for driving the turnover plate to act, so that the positioning block is separated from the positioning groove, and the tray is conveniently separated from the placing frame.

Furthermore, the safety valve loading and unloading equipment further comprises a first accommodating part, a second accommodating part, an electric pushing part and a flow dividing channel;

the first accommodating component is positioned on one side of the placing frame, where the rack is arranged;

the second accommodating member is positioned in a downstream process of the flow dividing passage;

the flow dividing channel is positioned on one side of the first jacking mechanism, which is far away from the clamping mechanism;

the electric pushing component is positioned on one side of the first jacking mechanism close to the clamping mechanism;

the electric pushing component is used for pushing a target safety valve from the tray to the diversion channel so that the target safety valve flows into the second containing component;

the first containing part is used for containing the tray and a remaining safety valve positioned on the tray when the tray is separated from the placing frame.

Further, in the safety valve loading and unloading device, the storage mechanism is arranged in a layered structure;

each layer is provided with at least one tray; the tray is provided with at least one positioning structure matched with the safety valve structure;

after the current layer of trays are transferred to the first loading and unloading station, the first clamping plate separates the rest trays from the current layer of trays.

Furthermore, in the safety valve loading and unloading device, the tray is also provided with a positioning hole;

the positioning blocks of two adjacent layers of trays are matched with the positioning blocks.

Further, in the safety valve loading and unloading device, the clamping mechanism comprises a second clamping plate, a third clamping plate and a clamping cylinder;

sealing gaskets are arranged on one sides of the second clamping plate and the third clamping plate, which are used for clamping the safety valve, and the sealing gaskets are used for sealing the safety valve;

the second clamping plate is fixedly arranged;

the clamping cylinder drives the third clamping plate to move so as to clamp or loosen the safety valve.

The invention also provides a safety valve testing machine which comprises human-computer interaction equipment, control equipment, testing equipment and the safety valve loading and unloading equipment as described in any one of the above items;

the human-computer interaction equipment, the testing equipment and the safety valve feeding and discharging equipment are respectively connected with the control equipment;

the test equipment is also connected with a safety valve test interface of the clamping mechanism in the safety valve feeding and discharging equipment;

the human-computer interaction equipment is used for setting test parameters of the safety valve and sending a test instruction of the safety valve to the control device;

the control equipment is used for controlling the operation of the test equipment according to the test parameters, controlling the operation of the loading and unloading equipment of the safety valve according to the test instruction, and sending the test information of the safety valve to the human-computer interaction equipment;

the human-computer interaction equipment is also used for outputting the test information of the safety valve.

Further, in the safety valve testing machine described above, the testing device includes a pressure medium conveying mechanism, a plurality of pressure adjusting mechanisms, and a pressure switching mechanism;

each pressure adjusting mechanism is respectively connected with the pressure medium conveying mechanism and the pressure switching mechanism;

the pressure switching mechanism is respectively connected with the control equipment and the test interface;

the pressure medium conveying mechanism conveys pressure medium to the pressure adjusting mechanism;

the pressure adjusting mechanism adjusts the pressure medium to different test pressures required by the safety valve;

and the control equipment controls the pressure switching mechanism to switch the target test pressure so as to enable the target pressure adjusting mechanism corresponding to the target test pressure to be communicated with the test interface.

Further, in the safety valve testing machine, the testing device further comprises a medium processing mechanism;

each pressure adjusting mechanism is connected with the pressure medium conveying mechanism through the medium processing mechanism;

the medium processing mechanism is used for filtering the pressure medium conveyed by the pressure medium conveying mechanism.

According to the safety valve feeding and discharging equipment and the safety valve testing machine, the storage mechanism, the first transfer mechanism, the second transfer mechanism, the first tightening mechanism and the tightening mechanism are arranged, so that a tray of the storage mechanism stores more safety valves, and the tray is driven by the first transfer mechanism, the second transfer mechanism, the first tightening mechanism and the tightening mechanism to move back and forth between the storage area and the testing area, so that automatic feeding and discharging of the safety valves are realized, a tester can supplement the safety valves for the tray of the storage mechanism in real time, and continuous feeding in a feeding testing process is guaranteed. By adopting the technical scheme of the invention, the testing efficiency of the safety valve can be improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of a safety valve loading and unloading apparatus according to the present invention;

FIG. 2 is an exploded view corresponding to FIG. 1;

FIG. 3 is a schematic structural view of a part of the safety valve loading and unloading apparatus of the present invention;

FIG. 4 is a schematic view of the structure of the tray of FIG. 1;

FIG. 5 is another schematic structural view of a safety valve loading and unloading apparatus according to the present invention;

FIG. 6 is a schematic structural diagram of an embodiment of a safety valve testing machine according to the present invention;

FIG. 7 is a schematic diagram of a test of FIG. 6;

fig. 8 is another test schematic of fig. 6.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

Fig. 1 is a schematic structural view of an embodiment of a safety valve loading and unloading apparatus according to the present invention, fig. 2 is an exploded view corresponding to fig. 1, and as shown in fig. 1-2, the safety valve loading and unloading apparatus according to the present embodiment includes a storage mechanism 10, a first transfer mechanism 11, a second transfer mechanism 12, a first tightening mechanism 13, and a tightening mechanism 14; the storage mechanism 10, the first transfer mechanism 11, the second transfer mechanism 12, the first tightening mechanism 13, and the tightening mechanism 14 are provided in this order from the upstream process to the downstream process.

In this embodiment, the storage mechanism 10 includes a plurality of trays 101 for placing the safety valves, when testing the safety valves, a tester sets test parameters, places the safety valves on the trays 101, presses a start button, and enters a safety valve loading process, so that in the safety valve loading process, the first transfer mechanism 11 is used for transferring the trays 101 to the first loading and unloading station of the second transfer mechanism 12; the second transfer mechanism 12 is used for transferring the tray 101 to a second loading and unloading station of the first top mechanism; the first jacking mechanism 13 is used for transferring the tray 101 to a test station of the safety valve; the clamping mechanism is used to clamp the tray 101 so that the safety valve completes the test.

After the safety valve is tested, the safety valve is fed, so that in the safety valve feeding process, the clamping mechanism is used for loosening the tray 101, and the first jacking mechanism 13 is used for moving the tray 101 from the testing station to a second feeding and discharging station of the first jacking mechanism; the second transfer mechanism 12 is used for transferring the tray 101 from the second loading and unloading station of the first top mechanism to the first loading and unloading station of the second transfer mechanism 12, and removing the tray 101 from the first loading and unloading station of the second transfer mechanism 12, so that the subsequent safety valve to be tested can be loaded and unloaded according to the loading and unloading process, and the next round of test is completed.

The unloading equipment on relief valve of this embodiment, deposit mechanism 10 through the setting, first move and carry mechanism 11, the second moves and carries mechanism 12, first tight mechanism 13 in top and step up mechanism 14, make the tray 101 of depositing mechanism 10 deposit more relief valve, and by first move and carry mechanism 11, the second moves and carries mechanism 12, first tight mechanism 13 in top and step up mechanism 14 and drive tray 101 and reciprocate between storage area and test area, the automatic unloading of relief valve has been realized, and the tester can supply the relief valve to the tray 101 of storage mechanism in real time, guarantee to feed in succession in the test procedure. By adopting the technical scheme of the invention, the testing efficiency of the safety valve can be improved.

Fig. 3 is a schematic structural view of a part of the safety valve loading and unloading apparatus of the present invention, fig. 4 is a schematic structural view of the pallet in fig. 1, and as shown in fig. 1 to 4, in this embodiment, the first transfer mechanism 11 includes two first clamping plates 111 for clamping the pallet 101 and a transfer cylinder 112 corresponding to each first clamping plate 111. In this embodiment, the transfer cylinder 112 is used to drive the first clamping plate 111 to clamp or release the tray 101, so as to transfer the tray 101 to the first loading/unloading station of the second transfer mechanism 12. Specifically, two first clamping plates 111 are driven by two transfer cylinders 112 to be close to each other, so that the tray 101 is clamped, after the tray 101 is transferred to the position of the first feeding station, the two first clamping plates 111 are driven by the transfer cylinders 112 to be away from each other, so that the tray 101 is loosened, and the tray 101 is transferred to the first feeding station.

In practical applications, the storage mechanism 10 may be arranged in a layered structure, with at least one tray 101 disposed on each layer; after the previous layer of trays is transferred to the first loading/unloading station of the second transfer mechanism 12, the remaining trays 101 are separated from the current layer of trays by the first clamping plate 111.

Specifically, the lowest tray is the first layer, and the second layer and the third layer … … are the Nth layer on the first layer. The specific process is as follows: the left and right transfer cylinders 112 drive the first clamping plates 111 to drive all the trays 101 to be transferred to the first loading and unloading stations of the second transfer mechanism 12, at this time, the first layer of trays is located at the first loading and unloading stations of the second transfer mechanism 12, the left and right transfer cylinders 112 drive the first clamping plates 111 to jack up the second layer of trays 101 (contacting the slope, and inward extrusion makes the trays 101 except the first layer of trays be held up), the first layer is separated from other layers, and then the above processes can be repeated.

In a specific implementation process, in order to enable the trays 101 at the upper and lower layers to be connected and expanded, as shown in fig. 4, the tray 101 of this embodiment is provided with positioning holes 1011 and positioning blocks 1012, and the positioning blocks 1012 of the adjacent two layers of trays 101 are matched with the positioning blocks 1012, so that the trays 101 at each layer are quickly arranged.

In addition, since the safety valve has an irregular shape, in order to achieve precise positioning, in the present embodiment, at least one positioning structure 1013 matching with the safety valve structure is disposed on the tray 101.

As shown in fig. 1 to fig. 3, in the present embodiment, the second transferring mechanism 12 includes a placing frame 121, a transferring motor 122, a gear 123, a rack 124, a turning plate 125, and a turning cylinder 126; wherein, the rack 124 is arranged on the placing frame 121, and the rack 124 is meshed with the gear 123; the transferring motor 122 is connected with the gear 123; the turnover plate 125 is arranged on the turnover cylinder 126; the turnover cylinder 126 is arranged on the placing frame 121, and the turnover plate 125 is provided with a positioning groove matched with the positioning block 1012.

In a specific implementation process, the placing frame 121 is a first loading and unloading station of the second transferring mechanism 12 so as to place the tray 101, and the transferring motor 122 is used for driving the gear 123 to move so that the gear 123 drives the placing frame 121 to move; the turnover cylinder 126 is used for driving the turnover plate 125 to move, so that the positioning block 1012 is separated from the positioning groove, so that the tray 101 is separated from the placing frame 121, and therefore the tray 101 can be removed from the first loading and unloading station of the second transfer mechanism 12, so that the subsequent safety valves to be tested can be loaded and unloaded according to the loading and unloading process, and the next round of testing is completed.

As shown in fig. 1 to 3, the tightening mechanism 14 in the present embodiment includes a second clamp plate 141, a third clamp plate 142, and a tightening cylinder 143; one sides of the second clamping plate 141 and the third clamping plate 142 for clamping the safety valve are provided with gaskets 144, and the gaskets 144 are used for sealing the safety valve; the second clamp plate 141 is fixedly arranged; the clamping cylinder 143 moves the third clamping plate 142 to clamp or unclamp the safety valve.

In practical application, as not all safety valves are qualified products, in order to enable testers to quickly separate qualified products from non-qualified products, the invention also provides the following technical scheme.

Fig. 5 is another schematic structural view of a portion of the safety valve loading and unloading apparatus of the present invention, and as shown in fig. 1 to 5, the safety valve loading and unloading apparatus of the present embodiment further includes a first receiving member 15, a second receiving member 16, an electric pushing member 18, and a flow dividing passage 17. Wherein, the first receiving member 15 is located at one side of the placing frame 121 where the rack 124 is arranged; the second housing member 16 is located in a step downstream of the diversion passage 17; the flow dividing channel 17 is positioned on one side of the first jacking mechanism 13 far away from the clamping mechanism; the electric pushing part 18 is positioned on one side of the first tightening mechanism 13 close to the tightening mechanism.

In the present embodiment, the electric pushing member 18 is used to push up the target safety valve from the tray 101 to the flow dividing channel 17 to flow the target safety valve into the second housing member 16; the first housing member 15 is used to house the tray 101 and the remaining safety valve located on the tray 101 when the tray 101 is detached from the placement frame 121. The target safety valve is preferably an acceptable safety valve, the left safety valve is preferably an unacceptable safety valve, but the target safety valve and the left safety valve can be replaced mutually in practical application, and if the target safety valve is preferably an unacceptable safety valve, the left safety valve is preferably an acceptable safety valve.

For example, after testing, the qualified safety valve is pushed to the diversion channel 17 by the electric pushing component 18, and then flows into the second receiving component 16 along the diversion channel 17. The defective safety valve returns to the first loading/unloading station of the second transfer mechanism 12 along with the tray 101, and enters the first storage member 15 along with the tray 101. The first housing member 15 and the second housing member 16 are preferably housing cases, and the electric pushing member 18 is preferably an independent electric pushing rod.

The safety valve loading and unloading equipment of the embodiment has the following working principle:

the test can be initiated when a sufficient amount of the safety valve is stored in the storage mechanism 10. The first layer of pallets is positioned in the placing frame 121 → the transfer air cylinders 112 on the left and right sides drive the two first clamping plates 111 to jack the second layer of pallets up → the first layer is separated from other layers → the gear 123 on the transfer motor 122 drives the rack 124 to move the placing frame 121 forward → the foremost group is positioned right above the first jacking mechanism 13 (jacking air cylinder), the transfer is stopped → the first jacking mechanism 13 jacks the group right above to the testing station of the safety valves → the clamping mechanism fixes the safety valves between the sealing gaskets 144 on the two sides → the first jacking mechanism 13 is reset after the test, the group is returned to the placing frame 121 at present → the qualified safety valves are respectively withdrawn from the pallet grooves by the 4 independent electric pushing components 18 according to the testing result and fall to the diversion channel 17, the unqualified products are still placed on the pallets → the transfer mechanism continues to move the placing frame 121 forward → the second group of pallets are positioned right above the first jacking mechanism 13 → the action is repeated until the first layer of pallets is positioned right above the first jacking mechanism 13 All tests are completed → the first layer of supporting plate and unqualified products are transferred to the initialized position → the turning plate is driven by the turning plate cylinder to push one end of the supporting plate away from the placing frame 121, the other half of the supporting plate loses support, the whole supporting plate together with the unqualified products falls to the unqualified product containing box → the first layer of the placing frame 121 which is completely dropped is emptied, the two first clamping plates 111 retract, the upper supporting plate integrally moves downwards → after the second layer of the supporting plate falls to the supporting plate basket, the two first clamping plates 111 move inwards to separate the supporting plate of the second layer → the whole feeding is repeated according to the flow, the number of the supporting plate layers of the storing mechanism 10 along with the test is less and less, when the testing equipment 4 is in the test, the loading and unloading equipment of the safety valve is also static, at the time, the whole neutral gear period can be.

Fig. 6 is a schematic structural diagram of an embodiment of a safety valve testing machine of the present invention, fig. 7 is a testing schematic diagram of fig. 6, and as shown in fig. 6-7, the safety valve testing machine of the present embodiment includes a human-machine interaction device 2, a control device 3, a testing device 4, and a safety valve loading and unloading device 1 of the above embodiment. The human-computer interaction equipment 2, the test equipment 4 and the safety valve loading and unloading equipment 1 are respectively connected with the control equipment 3; the test equipment 4 is also connected with a safety valve test interface of a tightening mechanism in the safety valve feeding and discharging equipment 1.

In one specific implementation process, the human-computer interaction device 2 is used for setting test parameters of the safety valve and sending a test instruction of the safety valve to the control device; the control equipment 3 is used for controlling the operation of the test equipment 4 according to the test parameters, controlling the operation of the loading and unloading equipment 1 of the safety valve according to the test instruction, and sending the test information of the safety valve to the human-computer interaction equipment 2; the human-computer interaction device 2 is also used for outputting the test information of the safety valve.

The human-computer interaction device 2 comprises a control component 21 and a touch screen 22; the control component 21 is used for sending a test instruction of the safety valve to the control device; the touch screen 22 is used for setting test parameters of the safety valve and outputting test information of the safety valve.

The safety valve testing machine of the embodiment is characterized in that the storage mechanism 10, the first transfer mechanism 11, the second transfer mechanism 12, the first jacking mechanism 13 and the tightening mechanism 14 are arranged, so that more safety valves are stored in the tray 101 of the storage mechanism 10, the first transfer mechanism 11, the second transfer mechanism 12, the first jacking mechanism 13 and the tightening mechanism 14 drive the tray 101 to move back and forth between the storage area and the test area, automatic loading and unloading of the safety valves are achieved, a tester can supplement the safety valves for the tray 101 of the storage mechanism in real time, and continuous feeding in the loading and testing process is guaranteed. By adopting the technical scheme of the invention, the testing efficiency of the safety valve can be improved.

As shown in fig. 7, in the present embodiment, the test apparatus 4 includes a pressure medium conveying mechanism 41, a plurality of pressure adjusting mechanisms 42, and a pressure switching mechanism 43; each pressure adjusting mechanism 42 is connected with the pressure medium conveying mechanism 41 and the pressure switching mechanism 43 respectively; the pressure switching mechanism 43 is connected to the control device 3 and the test interface, respectively.

In one specific implementation, the pressure medium conveying mechanism 41 conveys the pressure medium to the pressure adjusting mechanism 42; the pressure regulating mechanism 42 regulates the pressure medium to different test pressures required by the safety valve; the control device 3 controls the pressure switching mechanism 43 to switch the target test pressure, so that the target pressure adjusting mechanism 42 corresponding to the target test pressure is conducted with the test interface.

In practical application, the pressure medium may have other mixtures, so that the pressure is not easy to adjust, and the invention further provides a technical scheme for solving the technical problem.

Fig. 8 is another testing schematic diagram of fig. 6, and as shown in fig. 8, the present embodiment may further include a media processing mechanism 44 on the basis of the above-mentioned embodiment. Each pressure adjusting mechanism 42 is respectively connected with the pressure medium conveying mechanism 41 through a medium processing mechanism 44; the medium processing means 44 filters the pressure medium supplied by the pressure medium supply means 41 to obtain a clean pressure medium.

In practical application, the pressure medium may be selected according to practical requirements, for example, when the pressure requirement is low, air may be used as the pressure medium, and when the pressure requirement is high, water or hydraulic oil may be selected. In this embodiment, because the test pressure of the safety valve is relatively low, and if water or hydraulic oil is used, the safety valve needs to be dried, so, in this embodiment, air is preferably used as the pressure medium, so that the drying process can be reduced, and the test efficiency of the safety valve is further improved.

Further, as shown in fig. 6, the safety valve testing machine of the present embodiment further includes a status indicator lamp 5; the status indicator lamp 5 is connected with the control device 3, and the status indicator lamp 5 is used for indicating the current working status of the safety valve testing machine, such as a loading status, a testing status, a discharging status, a fault status, and the like.

As shown in fig. 6, in this embodiment, the status indicator lamp 5, the human-computer interaction device 2, the testing device 4, the control device 3, and the safety valve loading and unloading device 1 may be integrated on the device frame.

The working flow of the safety valve testing machine of the embodiment is as follows:

the touch screen 21 is provided with test parameters → the safety valve is manually stacked on the storage mechanism 10 of the safety valve loading and unloading equipment 1 → a start button is manually pressed on the control part 22 → the safety valve loading and unloading equipment 1 automatically sends the safety valve to a test position under the control of the control equipment 4 → the safety valve loading and unloading equipment 1 finishes the clamping and sealing of the safety valve and is connected when reaching the test position → the test equipment 3 performs four-stage pressure automatic test → the touch screen 21 displays whether the current test is qualified → the qualified products and the unqualified products are shunted to different storage boxes in the safety valve loading and unloading equipment 1.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.

It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.