Airtightness detection device for packaging bag

Abstract

The utility model provides an air tightness detection device for packaging bags, which comprises a containing box, one end of the interior of the containing box is provided with a containing cavity, the other end of the interior of the containing box is provided with a detection cavity, and the inner cavity of the containing cavity is transversely and fixedly connected with a first electric telescopic rod. And the other end of the first electric telescopic rod can movably extend to the inner cavity of the detection cavity and is fixedly connected with a containing box, and the bottom of the other side face of the containing box is transversely and fixedly connected with a placement plate. According to the air tightness detection device for the packaging bag, two threaded sleeves are driven to get close to each other, then two clamping plates are driven to get close to each other, after the clamping plates make contact with the surface of the packaging bag, the packaging bag can be clamped and fixed, and the packaging bag is fixed to the upper surface of a placement plate; and a first electric telescopic rod shrinks to drive a placement plate to move into the device for air tightness detection, so that the stability of the packaging bag in the moving process in the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness detection, in particular to an air tightness detection device for packaging bags. Background Art

[0002] Packaging bags refer to bags used to package various supplies, which make it convenient to transport and store goods during the production and circulation process. After the packaging bags are produced, the air tightness of the packaging bags needs to be tested. The air tightness detection device of the packaging bags is a special equipment used to detect whether there is leakage in the packaging bags.

[0003] Chinese patent CN217520659U discloses an airtightness detection device for packaging bag production. This technical solution, through the coordinated arrangement of a second electric push rod, a pressure sensor, a movable plate and a display screen, the second electric push rod can drive the pressure sensor to press the packaging bag placed above the movable plate. When the pressure value applied to the pressure sensor suddenly increases, the second electric push rod is stopped, and the change in the pressure value applied to the pressure sensor within ten seconds is observed on the display screen, so that the airtightness of the packaging bag above the movable plate can be reflected. However, the airtightness detection device for the packaging bag does not have a packaging bag fixing function during use, and the stability of the packaging bag during movement inside the device is poor.

[0004] Therefore, it is necessary to provide a new airtightness detection device for packaging bags to solve the above technical problems. Summary of the invention

[0005] The utility model provides an air tightness detection device for packaging bags, which solves the technical problem that the air tightness detection device for packaging bags does not have a packaging bag fixing function during use, and the packaging bag has poor stability during movement inside the device.

[0006] In order to solve the above technical problems, the utility model provides an airtightness detection device for packaging bags, comprising a containing box, a containing cavity is opened at one end of the containing box, and a detection cavity is opened at the other end of the containing box;

[0007] The inner cavity of the accommodating cavity is laterally fixedly connected with a first electric telescopic rod, the other end of the first electric telescopic rod can be movably extended to the inner cavity of the detection cavity, and is fixedly connected with a accommodating box, the bottom of the other side of the accommodating box is laterally fixedly connected with a placement plate, and the front end and the rear end of the other side of the accommodating box are both provided with a clamping plate that can move in the horizontal direction;

[0008] A pressure plate capable of moving in a vertical direction is arranged on the top of the inner wall of the detection cavity through a driving mechanism, a pressure sensor is arranged on the lower surface of the pressure plate, and a box door communicating with the inner cavity of the detection cavity is arranged on the other end surface of the containing box.

[0009] Preferably, the front end of the storage box is fixedly connected to a motor, the output shaft of the motor can rotatably extend to the inner cavity of the storage box, and is fixedly connected to a bidirectional threaded rod, the front end and the rear end of the surface of the bidirectional threaded rod are both threadedly connected to a threaded sleeve, the other side of the threaded sleeve is fixedly connected to a connecting rod, the other end of the connecting rod can movably extend to the outside of the storage box, and is fixedly connected to the surface of the clamping plate at the same end.

[0010] Preferably, guide openings for movement of the connecting rod are provided at the front end and the rear end of the other side surface of the accommodating box in a transverse direction along the length direction of the surface of the accommodating box.

[0011] Preferably, a rotatable ball is disposed on the lower surface of the placement plate, and an arc groove adapted to the ball is transversely opened on the top of the inner wall of the detection cavity.

[0012] Preferably, the driving mechanism includes a second electric telescopic rod, which is vertically fixedly connected to the top of the inner wall of the detection chamber, and the bottom end of the second electric telescopic rod is laterally fixedly connected to a cross plate, and a plurality of springs are vertically fixedly connected between the lower surface of the cross plate and the upper surface of the pressure plate.

[0013] Preferably, a plurality of vertical rods are vertically fixedly connected to the upper surface of the pressure plate, and the horizontal plate can be slidably sleeved on the surface of the vertical rods.

[0014] Preferably, a plurality of bases are fixedly connected to the bottom of the storage box, a maintenance cover adapted to the storage cavity is detachably connected to the surface of the storage box, a maintenance tool box is provided on the surface of the storage box, and an observation window adapted to the detection cavity is provided on the surface of the storage box.

[0015] Compared with the related art, the air tightness detection device for packaging bags provided by the utility model has the following beneficial effects:

[0016] The utility model provides an air-tightness detection device for packaging bags. After a worker opens a box door, a first electric telescopic rod is extended to push a containing box, so that a placing plate is moved, and a spring is driven to move to the outside of the device. The worker can place the packaging bag on the upper surface of the placing plate. After a motor drives a bidirectional threaded rod to rotate, two threaded sleeves are driven to approach each other, and then two clamping plates are driven to approach each other. After the clamping plates contact the surfaces of the packaging bags, the packaging bags can be clamped and fixed, and the packaging bags are fixed to the upper surface of the placing plate. Then, the first electric telescopic rod is contracted to drive the placing plate to move to the inside of the device for air-tightness detection, thereby improving the stability of the packaging bags during movement inside the device, improving the stability of the packaging bags during detection, and facilitating the use of air-tightness detection of the packaging bags. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a preferred embodiment of an air tightness detection device for packaging bags provided by the utility model;

[0018] Figure 2 for Figure 1 The schematic diagram of the structure of the front cross-section shown;

[0019] Figure 3 for Figure 1 The schematic diagram of the structure of the containing box and the bidirectional threaded rod is shown.

[0020] Numbers in the figure: 1. accommodating box; 2. accommodating cavity; 3. detection cavity; 4. first electric telescopic rod; 5. accommodating box; 6. placement plate; 7. motor; 8. bidirectional threaded rod; 9. threaded sleeve; 10. connecting rod; 11. clamping plate; 12. second electric telescopic rod; 13. horizontal plate; 14. pressure plate; 15. vertical rod; 16. spring; 17. pressure sensor; 18. box door; 19. ball bearing; 20. maintenance tool box; 21. maintenance cover; 22. base; 23. observation window. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0022] Please refer to Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of an air tightness detection device for packaging bags provided by the utility model; Figure 2 for Figure 1 The schematic diagram of the structure of the front cross-section shown; Figure 3 for Figure 1 The air tightness detection device for packaging bags comprises a container 1, a container cavity 2 is provided at one end of the container 1, and a detection cavity 3 is provided at the other end of the container 1.

[0023] The inner cavity of the accommodating chamber 2 is laterally fixedly connected with a first electric telescopic rod 4, the other end of the first electric telescopic rod 4 can be movably extended to the inner cavity of the detection cavity 3, and is fixedly connected with a accommodating box 5, and the bottom of the other side of the accommodating box 5 is laterally fixedly connected with a placing plate 6, and the front end and the rear end of the other side of the accommodating box 5 are both provided with a clamping plate 11 that can move in the horizontal direction.

[0024] The top of the inner wall of the detection chamber 3 is provided with a pressure plate 14 that can move in the vertical direction through a driving mechanism, the lower surface of the pressure plate 14 is provided with a pressure sensor 17, and the other end surface of the containing box 1 is provided with a box door 18 that is connected to the inner cavity of the detection chamber 3.

[0025] The front end of the housing box 5 is fixedly connected to a motor 7, the output shaft of the motor 7 can rotatably extend to the inner cavity of the housing box 5, and is fixedly connected to a bidirectional threaded rod 8, the front and rear ends of the surface of the bidirectional threaded rod 8 are both threadedly connected to a threaded sleeve 9.

[0026] A connecting rod 10 is fixedly connected to the other side of the threaded sleeve 9 , and the other end of the connecting rod 10 can be movably extended to the outside of the accommodating box 5 and is fixedly connected to the surface of the clamping plate 11 at the same end.

[0027] After the staff opens the box door 18, the first electric telescopic rod 4 extends to push the containing box 5, so that the placement plate 6 moves, and drives the spring 16 to move to the outside of the device. The staff can then place the packaging bag on the upper surface of the placement plate 6. After the motor 7 drives the bidirectional threaded rod 8 to rotate, the two threaded sleeves 9 can be driven to approach each other, and then the two clamping plates 11 can be driven to approach each other. After the clamping plates 11 come into contact with the surface of the packaging bag, the packaging bag can be clamped and fixed.

[0028] The packaging bag is fixed on the upper surface of the placement plate 6, and then the placement plate 6 is driven to move to the inside of the device for air tightness testing by contracting the first electric telescopic rod 4, thereby improving the stability of the packaging bag during movement inside the device and the stability of the packaging bag during testing, which is beneficial to the use of the packaging bag for air tightness testing.

[0029] The driving mechanism includes a second electric telescopic rod 12, which is vertically fixedly connected to the top of the inner wall of the detection chamber 3, and the bottom end of the second electric telescopic rod 12 is laterally fixedly connected to a horizontal plate 13, and a plurality of springs 16 are vertically fixedly connected between the lower surface of the horizontal plate 13 and the upper surface of the pressure plate 14.

[0030] After the placing plate 6 drives the packaging bag to move to the bottom of the pressure plate 14, the second electric telescopic rod 12 is extended, and the pressure plate 14 can be pushed down through the connection between the cross plate 13 and the spring 16. After the pressure plate 14 contacts the surface of the packaging bag, the two clamping plates 11 move away from each other, releasing the clamping of the packaging bag. The packaging bag is squeezed by the pressure plate 14, and the pressure sensor 17 monitors the pressure to determine the air tightness of the packaging bag.

[0031] The front end and the rear end of the other side surface of the accommodating box 5 are both transversely provided with guide openings for the connecting rod 10 to move along the length direction of the surface of the accommodating box 5 .

[0032] The guide opening facilitates guiding and limiting the connecting rod 10 during its movement, thereby improving the smoothness and stability of the clamping plate 11 during its movement.

[0033] A rotatable ball 19 is disposed on the lower surface of the placement plate 6 , and an arc groove adapted to the ball 19 is transversely opened on the top of the inner wall of the detection cavity 3 .

[0034] A plurality of vertical rods 15 are vertically fixedly connected to the upper surface of the pressure plate 14 , and the horizontal plate 13 is slidably sleeved on the surface of the vertical rods 15 .

[0035] The bottom of the storage box 1 is fixedly connected with a plurality of bases 22, the surface of the storage box 1 is detachably connected with an inspection cover 21 adapted to the storage cavity 2, the surface of the storage box 1 is provided with an inspection tool box 20, and the surface of the storage box 1 is provided with an observation window 23 adapted to the detection cavity 3.

[0036] The working principle of the air tightness detection device for packaging bags provided by the utility model is as follows:

[0037] After the staff opens the box door 18, the first electric telescopic rod 4 extends to push the containing box 5, so that the placement plate 6 moves, and the spring 16 moves to the outside of the device. The staff can place the packaging bag on the upper surface of the placement plate 6. After the motor 7 drives the bidirectional threaded rod 8 to rotate, the two threaded sleeves 9 can be driven to approach each other, and then the two clamping plates 11 can be driven to approach each other. After the clamping plate 11 contacts the surface of the packaging bag, the packaging bag can be clamped and fixed, and the packaging bag is fixed to the upper surface of the placement plate 6. The first electric telescopic rod 4 is then contracted to drive the placement plate 6 to move to the inside of the device for air tightness detection. After the placement plate 6 drives the packaging bag to move to the bottom of the pressure plate 14, the second electric telescopic rod 12 extends, and the pressure plate 14 can be pushed down through the connection between the cross plate 13 and the spring 16. After the pressure plate 14 contacts the surface of the packaging bag, the two clamping plates 11 move away from each other, release the clamping of the packaging bag, and the packaging bag is squeezed by the pressure plate 14. The pressure sensor 17 monitors the pressure to determine the air tightness of the packaging bag.

[0038] Compared with the related art, the air tightness detection device for packaging bags provided by the utility model has the following beneficial effects:

[0039] The utility model provides an air tightness detection device for packaging bags. After a worker opens a box door 18, the first electric telescopic rod 4 is extended to push the accommodating box 5, so that the placement plate 6 is moved, and the spring 16 is driven to move to the outside of the device. The worker can place the packaging bag on the upper surface of the placement plate 6. After the two-way threaded rod 8 is driven to rotate by the motor 7, the two threaded sleeves 9 can be driven to approach each other, and then the two clamping plates 11 can be driven to approach each other. After the clamping plates 11 contact the surface of the packaging bag, the packaging bag can be clamped and fixed, and the packaging bag is fixed to the upper surface of the placement plate 6. Then, the first electric telescopic rod 4 is contracted to drive the placement plate 6 to move to the inside of the device for air tightness detection, thereby improving the stability of the packaging bag during the movement inside the device, improving the stability of the packaging bag during the detection process, and facilitating the use of the packaging bag for air tightness detection.

[0040] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An airtightness detection device for a packaging bag, comprising a containing box (1), characterized in that: A receiving chamber (2) is provided at one end of the receiving box (1), and a detection chamber (3) is provided at the other end of the receiving box (1); The inner cavity of the accommodating cavity (2) is laterally fixedly connected with a first electric telescopic rod (4), the other end of which can be movably extended to the inner cavity of the detection cavity (3) and is fixedly connected with a accommodating box (5), the bottom of the other side of the accommodating box (5) is laterally fixedly connected with a placement plate (6), and the front end and the rear end of the other side of the accommodating box (5) are both provided with a clamping plate (11) that can move in the horizontal direction; The top of the inner wall of the detection chamber (3) is provided with a pressure plate (14) that can move in the vertical direction through a driving mechanism, the lower surface of the pressure plate (14) is provided with a pressure sensor (17), and the other end surface of the containing box (1) is provided with a box door (18) that is connected to the inner cavity of the detection chamber (3).

2. The air tightness detection device for packaging bags according to claim 1, characterized in that: The front end of the accommodating box (5) is fixedly connected to a motor (7), the output shaft of the motor (7) can rotatably extend to the inner cavity of the accommodating box (5), and is fixedly connected to a bidirectional threaded rod (8), the front end and the rear end of the surface of the bidirectional threaded rod (8) are both threadedly connected to a threaded sleeve (9), the other side of the threaded sleeve (9) is fixedly connected to a connecting rod (10), the other end of the connecting rod (10) can movably extend to the outside of the accommodating box (5), and is fixedly connected to the surface of the clamping plate (11) at the same end.

3. The air tightness detection device for packaging bags according to claim 2, characterized in that: The front end and the rear end of the other side surface of the accommodating box (5) are both provided with guide openings for the movement of the connecting rod (10) in a transverse direction along the length direction of the surface of the accommodating box (5).

4. The air tightness detection device for packaging bags according to claim 1, characterized in that: A rotatable ball (19) is disposed on the lower surface of the placement plate (6), and an arc-shaped groove adapted to the ball (19) is transversely opened on the top of the inner wall of the detection chamber (3).

5. The air tightness detection device for packaging bags according to claim 1, characterized in that: The driving mechanism comprises a second electric telescopic rod (12), the second electric telescopic rod (12) being vertically fixedly connected to the top of the inner wall of the detection chamber (3), the bottom end of the second electric telescopic rod (12) being laterally fixedly connected to a transverse plate (13), and a plurality of springs (16) being vertically fixedly connected between the lower surface of the transverse plate (13) and the upper surface of the pressure plate (14).

6. The air tightness detection device for packaging bags according to claim 5, characterized in that: The upper surface of the pressure plate (14) is vertically fixedly connected to a plurality of vertical rods (15), and the horizontal plate (13) can be slidably sleeved on the surface of the vertical rods (15).

7. The air tightness detection device for packaging bags according to claim 1, characterized in that: The bottom of the storage box (1) is fixedly connected to a plurality of bases (22); the surface of the storage box (1) is detachably connected to a maintenance cover plate (21) adapted to the storage cavity (2); the surface of the storage box (1) is provided with a maintenance tool box (20); and the surface of the storage box (1) is provided with an observation window (23) adapted to the detection cavity (3).

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