Food-grade one-way valve airtightness automatic test equipment

Abstract

The utility model relates to the technical field of one-way valve automatic testing, in particular to food-grade one-way valve airtightness automatic testing equipment, which comprises a workbench, an air leak detector body is arranged on one side of the top surface of the workbench, and two first guide rails and two linear sliding tables are arranged on the other side of the top surface of the workbench. Compared with the prior art, the device has the advantages that the vibration feeding disc, the first material taking and placing manipulator, the second material taking and placing manipulator, the testing tool and the three testing positions are arranged, the vibration feeding disc operates, one-way valves are conveyed to the staggered material distribution table, the overturning air cylinder drives the testing positions to overturn, and the pressing air cylinder drives the testing positions to descend. The test channel is in sealed butt joint with the top end of the one-way valve, the air leak detector body introduces high-pressure gas into the test channel and is used for detecting the air tightness of the one-way valve, and the second material taking and placing mechanical arm clamps the one-way valve out and places the one-way valve on the non-defective product conveying belt and the defective product conveying belt respectively, so that the air tightness detection of the one-way valve is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of one-way valve automatic testing, in particular to a food-grade one-way valve airtight automatic testing device. Background Art

[0002] A one-way valve is a valve that allows fluid to flow only along the inlet, but the outlet medium cannot flow back. It is commonly known as a one-way valve. A one-way valve is also called a check valve or a non-return valve. There are two types of one-way valves: straight-through type and right-angle type, and they are widely used. For food-grade one-way valve bodies, it is generally necessary to test their air tightness after the one-way valve is manufactured. According to the existing one-way valve testing process, workers have to manually operate it, which consumes a lot of manpower and material resources. The airtightness test is very difficult for small product sizes, and the test results cannot be guaranteed. The technical requirements for employees are too high. Based on this, an automatic airtightness test equipment for food-grade one-way valves is proposed to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a food-grade one-way valve airtight automatic testing device, which effectively solves the deficiencies of the prior art.

[0004] In order to achieve the above-mentioned purpose, an embodiment of the utility model on one side provides a food-grade one-way valve airtight automatic testing device, including a workbench, one side of the top surface of the workbench is provided with an air leak detector body, and the other side of the top surface of the workbench is provided with two first guide rails and two linear slides, and the four are grouped in twos, and the top surfaces of the four groups of linear slides are respectively provided with a first material picking and placing robot and a second material picking and placing robot that move along the length direction thereof;

[0005] A horizontally movable offset material distribution table and a test fixture are sequentially arranged between the two linear slides, the test fixture is close to the second material picking and unloading robot, and a horizontally placed good product conveyor belt and a defective product conveyor belt are arranged in the middle of the second material picking and unloading robot;

[0006] The workbench is fixedly connected to three downward pressure cylinders in the middle near the bottom of the test fixture, and the output ends of the three are fixedly connected to mounting seats, the middle parts of the three mounting seats are rotatably connected to flip cylinders, the tops of the three mounting seats are rotatably connected to test positions, and each of the test positions is provided with two test channels, and the bottom ends of the three test positions are rotatably connected to the output ends of the three flip cylinders respectively;

[0007] A placing rack is arranged on one side of the workbench, a vibrating loading tray is arranged on the top of the placing rack, and a discharging end of the vibrating loading tray is close to the dislocation distributing platform.

[0008] Preferably, any of the above schemes is that a closed transparent protective cover is provided at the edge of the top surface of the workbench, and both side surfaces thereof adopt a double-door structure, and a three-color signal light is provided at a corner of the top surface of the transparent protective cover. This scheme facilitates the protection of the top of the workbench by the transparent protective cover to prevent foreign objects from accidentally entering the detection position, thereby ensuring the smooth progress of the entire detection process. At the same time, the three-color signal light adopts mature technology, which is electrically connected to the control computer equipment to indicate different working states of the test equipment.

[0009] Preferably, any of the above schemes is provided with a display screen at a corner of the top surface of the workbench, which is electrically connected to the air leak detector body through a wire. The display screen in the scheme is used to display the corresponding operating parameters and the number of good and defective products, which is convenient for users to observe on-site and handle later.

[0010] Preferably, any of the above schemes is that the workbench is fixedly connected to a driving cylinder near the top surface of the offset material distribution table, and one side of the offset material distribution table is fixedly connected to the output end of the driving cylinder. The driving cylinder in this scheme facilitates pushing the two one-way valves located inside the offset material distribution table away from the discharge end of the vibrating loading tray through its own extension and shortening actions, so that the two clamped one-way valves are staggered with the subsequent one-way valves, thereby avoiding the one-way valve body from being accidentally carried away from the discharge end of the vibrating loading tray, thereby ensuring the stability of the loading process.

[0011] Preferably, any of the above schemes is that the structures of the first material picking and placing robot and the second material picking and placing robot are exactly the same, and the second material picking and placing robot is composed of two support columns, a horizontal drive mechanism, a vertical drive mechanism and two pneumatic clamping fingers, the two support columns are placed vertically, one support column is slidably connected to the first guide rail, and the other support column is fixedly connected to the output end of the linear slide, the two ends of the horizontal drive mechanism are fixedly connected to the top ends of the two support columns, and the vertical drive mechanism is placed vertically with the horizontal drive mechanism. The horizontal drive mechanism in this scheme adopts a servo motor and a KK module, which runs smoothly and has high movement accuracy, and is convenient for driving the vertical drive mechanism to perform horizontal movement. The vertical drive mechanism adopts a slide cylinder, which has a simple structure, is easy to install, and has sensitive movement, high accuracy and good stability, and is convenient for driving the pneumatic clamping fingers to perform vertical movement, thereby realizing the clamping and release of the one-way valve.

[0012] Preferably, any of the above schemes is that the bottom surface of the test fixture is fixedly connected to the top surface of the workbench by bolts, and one side of the test fixture is connected to the air leak detector body by a pipeline. The top surface of the test fixture in the scheme is provided with six one-way valve placement positions, which correspond to the three test positions respectively. By flipping the three test positions, it is convenient to closely connect with the six one-way valves, so as to facilitate the air tightness detection of the one-way valves.

[0013] Preferably, any of the above schemes is that the bottom ends and middle parts of the three test positions are rotatably connected to the output ends of the three flip cylinders and the top of the mounting seat respectively through pins. This scheme facilitates the extension or shortening of the three flip cylinders, thereby facilitating the flipping of the three test positions at a certain angle, so that the ends of the test positions can be away from the test tooling, making it easier for the pneumatic gripper to place and take the one-way valve on the test tooling.

[0014] Preferably, any of the above schemes is that a bottom plate is provided at the bottom end of the vibrating loading tray, and four supporting wheels and limit pins are provided on the bottom plate, and the bottom ends of the two limit pins are both engaged with the top of the placement rack. The vibrating loading tray in this scheme adopts a quick-replacement design. Compared with the existing bolt fastening, this structure facilitates the quick replacement of the vibrating loading tray, saves operation time, and improves operation efficiency.

[0015] The utility model has the following advantages:

[0016] The food-grade one-way valve airtightness automatic testing equipment is provided with a vibrating loading tray, a first material picking and discharging manipulator, a second material picking and discharging manipulator, a testing fixture and three testing positions, and three downward pressure cylinders push the mounting seat and the three testing positions to move vertically, and three flipping cylinders respectively send the three testing positions to flip, and the one-way valve is transported to the dislocation material distribution table through the operation of the vibrating loading tray, and the first material picking and discharging manipulator clamps the one-way valve and transfers it to the testing fixture, and the flipping cylinder drives the testing position to flip, and the downward pressure cylinder drives the testing position to descend, so that the testing channel and the top of the one-way valve are sealed and docked, and high-pressure gas is introduced into the inside of the testing channel through the air leak detector body to detect the airtightness of the one-way valve. After the detection is completed, the second material picking and discharging manipulator clamps the one-way valve out and places it on the good product conveyor belt and the defective product conveyor belt respectively to complete the one-way valve airtightness detection, the overall structure is simple, the degree of automation is high, and the detection structure is relatively accurate, which greatly improves the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0019] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0020] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0021] Figure 5 This is a schematic diagram of the structure of the utility model from a first perspective;

[0022] Figure 6 This is a schematic diagram of the workbench structure of the utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the second material picking and placing robot of the utility model;

[0024] Figure 8 This is a schematic diagram of the test tooling structure of the utility model;

[0025] Fig. 9 It is a schematic diagram of the mounting seat structure of the utility model.

[0026] In the figure: 1-workbench, 2-three-color signal light, 3-transparent protective cover, 4-vibrating loading tray, 5-placing rack, 6-bottom plate, 7-limiting pin, 8-display screen, 9-first picking and unloading robot, 10-second picking and unloading robot, 1001-support column, 1002-horizontal drive mechanism, 1003-vertical drive mechanism, 1004-pneumatic clamping finger, 11-good product conveyor belt, 12-air leak detector body, 13-first guide rail, 14-driving cylinder, 15-test tooling, 16-linear slide, 17-flip cylinder, 18-test position, 19-offset material distribution table, 20-mounting seat, 21-downward pressure cylinder, 22-defective conveyor belt. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0028] like Figures 1 to 9 As shown, a food-grade one-way valve airtightness automatic testing equipment comprises a workbench 1, one side of the top surface of the workbench 1 is provided with an air leak detector body 12, and the other side of the top surface of the workbench 1 is provided with two first guide rails 13 and two linear slides 16, and the four are grouped in pairs, and the top surfaces of the four groups of linear slides 16 are respectively provided with a first material taking and putting manipulator 9 and a second material taking and putting manipulator 10 moving along the length direction thereof;

[0029] A horizontally movable offset material distribution table 19 and a test fixture 15 are sequentially arranged between the two linear slides 16. The test fixture 15 is close to the second material picking and unloading robot 10. A horizontally placed good product conveyor belt 11 and a defective product conveyor belt 22 are arranged in the middle of the second material picking and unloading robot 10.

[0030] The workbench 1 is fixedly connected to three downward pressure cylinders 21 in the middle near the bottom of the test fixture 15, and the output ends of the three are fixedly connected to the mounting seats 20, the middle parts of the three mounting seats 20 are rotatably connected to the flip cylinders 17, the tops of the three mounting seats 20 are rotatably connected to the test positions 18, and each test position 18 is provided with two test channels, and the bottom ends of the three test positions 18 are rotatably connected to the output ends of the three flip cylinders 17 respectively;

[0031] A placing rack 5 is provided on one side of the workbench 1 , a vibrating loading tray 4 is provided on the top of the placing rack 5 , and a discharging end thereof is close to the dislocation distributing platform 19 .

[0032] A closed transparent protective cover 3 is provided at the edge of the top surface of the workbench 1, and both sides thereof adopt a double-door structure. A three-color signal light 2 is provided at a corner of the top surface of the transparent protective cover 3. As an optional technical solution of the utility model, it is convenient to protect the top of the workbench 1 through the transparent protective cover 3 to prevent foreign objects from accidentally entering the detection position and ensure the smooth progress of the entire detection process. At the same time, the three-color signal light 2 adopts mature technology and is electrically connected to the control computer equipment to indicate different working states of the test equipment.

[0033] A display screen 8 is provided at a corner of the top surface of the workbench 1, which is electrically connected to the air leak detector body 12 through a wire. As an optional technical solution of the utility model, the display screen 8 is used to display the corresponding operating parameters and the number of good and defective products, which is convenient for users to observe on site and handle later.

[0034] A driving cylinder 14 is fixedly connected to the top surface of the workbench 1 near the offset material distribution table 19, and one side of the offset material distribution table 19 is fixedly connected to the output end of the driving cylinder 14. As an optional technical solution of the utility model, the driving cylinder 14 facilitates the two one-way valves located inside the offset material distribution table 19 to be pushed away from the discharge end of the vibrating loading tray through its own extension and shortening actions, so that the two clamped one-way valves are staggered with the subsequent one-way valves, thereby avoiding the one-way valve body from being accidentally carried away from the discharge end of the vibrating loading tray, thereby ensuring the stability of the loading process.

[0035] The structures of the first material picking and placing robot 9 and the second material picking and placing robot 10 are exactly the same. The second material picking and placing robot 10 is composed of two support columns 1001, a horizontal drive mechanism 1002, a vertical drive mechanism 1003 and two pneumatic clamping fingers 1004. The two support columns 1001 are placed vertically, one support column 1001 is slidably connected to the first guide rail 13, and the other support column 1001 is fixedly connected to the output end of the linear slide 16. The two ends of the horizontal drive mechanism 1002 are connected to the top of the two support columns 1001. The two ends are fixedly connected, and the vertical drive mechanism 1003 and the horizontal drive mechanism 1002 are placed vertically. As an optional technical solution of the utility model, the horizontal drive mechanism 1002 adopts a servo motor and a KK module, which has stable operation and high movement precision, and is convenient for driving the vertical drive mechanism to perform horizontal movement. The vertical drive mechanism adopts a slide cylinder, which has a simple structure, easy installation, sensitive movement, high precision and good stability, and is convenient for driving the pneumatic clamping fingers 1004 to perform vertical movement, thereby realizing the clamping and release of the one-way valve.

[0036] The bottom surface of the test fixture 15 is fixedly connected to the top surface of the workbench 1 by bolts, and one side of the test fixture 15 is connected to the air leak detector body 12 through a pipeline. As an optional technical solution of the utility model, six one-way valve placement positions are opened on the top surface of the test fixture 15, which correspond to the three test positions 18 respectively. By flipping the three test positions 18, it is convenient to closely connect with the six one-way valves, so as to facilitate the air tightness detection of the one-way valves.

[0037] The bottom ends and middle parts of the three test positions 18 are rotatably connected to the output ends of the three flip cylinders 17 and the top of the mounting seat 20 respectively through pins. As an optional technical solution of the utility model, this facilitates the extension or shortening of the three flip cylinders 17, thereby facilitating the flipping of the three test positions 18 at a certain angle, so that the end of the test position 18 can be away from the test fixture 15, making it convenient for the pneumatic clamping finger 1004 to place and take the one-way valve on the test fixture 15.

[0038] A base plate 6 is provided at the bottom end of the vibrating loading tray 4, and four supporting wheels and a limit pin 7 are provided on the base plate 6. The bottom ends of the two limit pins 7 are both engaged with the top of the placement rack 5. As an optional technical solution of the utility model, the vibrating loading tray 4 adopts a quick-replacement design. Compared with the existing bolt fastening, this structure facilitates the quick replacement of the vibrating loading tray 4, saves operation time, and improves operation efficiency.

[0039] The following steps are required when using the food-grade one-way valve airtight automated testing equipment:

[0040] 1) When in use, pour the produced one-way valve into the interior of the vibrating loading tray 4;

[0041] 2) The vibrating loading plate automatically loads the one-way valve and enters the offset material distribution table 19;

[0042] 3) The driving cylinder 14 drives the offset material distribution table 19 to perform horizontal reciprocating motion, so that the one-way valve can be clamped by the first material taking and discharging manipulator 9;

[0043] 4) The first material discharging manipulator 9 moves three times to place the one-way valve on the test position 18;

[0044] 5) The turning cylinder 17 drives the test position 18 to turn, and the pressing cylinder 21 drives the test position 18 to descend, so that the test channel and the top of the one-way valve are sealed and connected;

[0045] 6) The air leak detector body 12 introduces high-pressure gas into the test channel to detect the air tightness of the one-way valve;

[0046] 7) After the test is completed, the second pick-up and discharge robot 10 clamps the one-way valve and places it on the good product conveyor belt 11 and the defective product conveyor belt 22 respectively, completing the one-way valve air tightness test.

[0047] In summary, when the user uses it, by setting the vibrating loading tray 4, the first material taking and discharging robot 9, the second material taking and discharging robot 10, the test fixture 15 and the three test positions 18, the three downward pressure cylinders 21 push the mounting seat 20 and the three test positions 18 to move vertically, and the three flipping cylinders 17 respectively send the three test positions 18 to flip, and the one-way valve is transported to the dislocation material distribution table 19 through the operation of the vibrating loading tray 4, and the first material taking and discharging robot 9 clamps the one-way valve and transfers it to the test fixture 15, and the flipping cylinder 17 drives the three test positions 18 to flip. The dynamic test position 18 flips, and the downward pressure cylinder 21 drives the test position 18 to descend, so that the test channel and the top of the one-way valve are sealed and connected, and high-pressure gas is introduced into the test channel through the air leak detector body 12 to detect the air tightness of the one-way valve. After the detection is completed, the second picking and discharging robot 10 clamps the one-way valve out and places it on the good product conveyor belt 11 and the defective product conveyor belt 22 respectively to complete the one-way valve air tightness test. The overall structure is simple, the degree of automation is high, and the detection structure is relatively accurate, which greatly improves the detection efficiency.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A food-grade one-way valve airtight automatic testing equipment, characterized by: The invention comprises a workbench (1), wherein an air leak detector body (12) is arranged on one side of the top surface of the workbench (1), and two first guide rails (13) and two linear slides (16) are arranged on the other side of the top surface of the workbench (1), and the four linear slides (16) are arranged in groups of two, and the top surfaces of the four groups of linear slides (16) are respectively provided with a first material picking and placing robot (9) and a second material picking and placing robot (10) that move along the length direction thereof; A horizontally movable offset material distribution table (19) and a test fixture (15) are arranged in sequence between the two linear slides (16); the test fixture (15) is close to the second material picking and placing robot (10); and a horizontally placed good product conveyor belt (11) and a defective product conveyor belt (22) are arranged in the middle of the second material picking and placing robot (10); The workbench (1) is fixedly connected to three downward pressure cylinders (21) in the middle part near the bottom surface of the test fixture (15), and the output ends of the three are fixedly connected to the mounting seats (20), the middle parts of the three mounting seats (20) are rotatably connected to the flip cylinders (17), the top ends of the three mounting seats (20) are rotatably connected to the test positions (18), and each of the test positions (18) is provided with two test channels, and the bottom ends of the three test positions (18) are rotatably connected to the output ends of the three flip cylinders (17) respectively; A placement rack (5) is provided on one side of the workbench (1), a vibrating loading tray (4) is provided on the top of the placement rack (5), and a discharge end thereof is close to the offset material distribution platform (19).

2. The food-grade one-way valve airtight automatic testing equipment according to claim 1, characterized in that: A closed transparent protective cover (3) is provided at the edge of the top surface of the workbench (1), and both side surfaces thereof adopt a double-door structure. A three-color signal light (2) is provided at a corner of the top surface of the transparent protective cover (3).

3. The food-grade one-way valve airtight automatic testing equipment according to claim 2, characterized in that: A display screen (8) is provided at a corner of the top surface of the workbench (1), and is electrically connected to the air leak detector body (12) via a wire.

4. The food-grade one-way valve airtight automatic testing equipment according to claim 3 is characterized by: A driving cylinder (14) is fixedly connected to the top surface of the workbench (1) close to the offset material distribution table (19), and one side of the offset material distribution table (19) is fixedly connected to the output end of the driving cylinder (14).

5. The food-grade one-way valve airtight automatic testing equipment according to claim 4, characterized in that: The structures of the first material picking and placing robot (9) and the second material picking and placing robot (10) are completely the same. The second material picking and placing robot (10) is composed of two support columns (1001), a horizontal drive mechanism (1002), a vertical drive mechanism (1003) and two pneumatic gripping fingers (1004). The two support columns (1001) are both placed vertically. One of the support columns (1001) is slidably connected to the first guide rail (13), and the other support column (1001) is fixedly connected to the output end of the linear slide (16). The two ends of the horizontal drive mechanism (1002) are fixedly connected to the top ends of the two support columns (1001), and the vertical drive mechanism (1003) and the horizontal drive mechanism (1002) are placed vertically.

6. The food-grade one-way valve airtight automatic testing equipment according to claim 5, characterized in that: The bottom surface of the test fixture (15) is fixedly connected to the top surface of the workbench (1) via bolts, and one side of the test fixture (15) is connected to the air leak detector body (12) via a pipeline.

7. The food-grade one-way valve airtight automatic testing equipment according to claim 6, characterized in that: The bottom ends and middle parts of the three test positions (18) are rotatably connected to the output ends of the three tilting cylinders (17) and the top end of the mounting seat (20) respectively through pins.

8. The food-grade one-way valve airtight automatic testing equipment according to claim 7, characterized in that: A bottom plate (6) is provided at the bottom end of the vibrating loading tray (4), and four supporting wheels and a limit pin (7) are provided on the bottom plate (6), and the bottom ends of the two limit pins (7) are both engaged with the top end of the placement rack (5).

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