Nondestructive testing device for wide PE (polyethylene) protective film

Abstract

The utility model discloses a wide PE (Poly Ethylene) protective film nondestructive testing device which comprises a shell, a motor is fixedly connected to a middle shaft of the front surface of the shell, a driving gear is fixedly connected to the output end of the motor, driven gears are meshed with the two sides of the driving gear, a rotating shaft is fixedly connected to one side of each driven gear, and the other side of each driven gear is meshed with a driven gear. Stirring blades are fixedly connected to the surface of the rotating shaft, an air pressure sensor communicates with the middle axis of the left side of the shell, the rear end of the right side of the shell communicates with a one-way valve, and one side of the one-way valve communicates with a connecting pipe. According to the utility model, by arranging the colored powder, the motor, the driving gear, the driven gear, the rotating shaft, the stirring blades, the air pressure sensor, the controller, the one-way valve, the connecting pipe and the air pump, the detection can be carried out by observing whether the air pressure value is changed or not, and the detection can be carried out by observing whether the colored powder exists on the top of the PE protective film or not; double detection can be performed, so that the detection is accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of nondestructive testing of PE protective films, in particular to a nondestructive testing device for wide-width PE protective films. Background Art

[0002] PE protective film is the simplest macromolecular organic compound and the most widely used macromolecular material in the world today. PE protective film uses special polyethylene (PE) plastic film as the base material and is divided into high-density polyethylene protective film, medium-density polyethylene and low-density polyethylene according to different densities.

[0003] Wide-width PE protective film needs to be non-destructively tested after production, but the existing non-destructive testing device has a simple structure. During the test, the staff only uses their eyes to observe whether there are gaps on the PE protective film. The detection method is single, resulting in inaccurate detection and failure to meet the use requirements. For this reason, we propose a wide-width PE protective film non-destructive testing device. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a non-destructive testing device for wide-width PE protective film, which has the advantage of accurate detection and solves the problem that the existing non-destructive testing device has a simple structure and only relies on the staff to observe whether there are gaps on the PE protective film with their eyes during detection. The detection method is single, resulting in inaccurate detection and failure to meet the use requirements.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a nondestructive testing device for wide-width PE protective film, comprising a shell, a motor is fixedly connected to the central axis of the front side of the shell, a driving gear is fixedly connected to the output end of the motor, both sides of the driving gear are meshed with driven gears, one side of the driven gear is fixedly connected to a rotating shaft, the surface of the rotating shaft is fixedly connected to a stirring blade, an air pressure sensor is connected to the central axis on the left side of the shell, a one-way valve is connected to the rear end of the right side of the shell, a connecting pipe is connected to one side of the one-way valve, an air pump is connected to one side of the connecting pipe, a rectangular plate is fixedly connected to the top of the left side of the shell, a screw rod is movably connected to the front side of the top of the rectangular plate, a connecting plate is threadedly connected to the surface of the screw rod, a first sealing ring is fixedly connected to the bottom of the connecting plate, and a second sealing ring is fixedly connected to the top of the shell.

[0006] Preferably, one side of the air pump is fixedly connected to a fixing seat, and one side of the fixing seat is fixedly connected to the housing.

[0007] Preferably, a controller is fixedly connected to the front end of the left side of the shell, and a circular hole is opened on the front side of the inner cavity of the shell.

[0008] Preferably, the bottom of the screw rod is movably connected to the rectangular plate via a first bearing, and the top of the screw rod is fixedly connected with a rotating handle.

[0009] Preferably, a sliding rod is slidably connected to the rear side of the inner cavity of the connecting plate, and the bottom of the sliding rod is fixedly connected to the rectangular plate.

[0010] Preferably, a rectangular groove is formed at the top of the inner cavity of the shell, and a movable groove is formed at the top of the connecting plate.

[0011] Preferably, both sides of the front side of the shell are movably connected to the rotating shaft through a second bearing, and the number of the driven gears is two.

[0012] Compared with the prior art, the utility model provides a nondestructive testing device for wide PE protective film, which has the following beneficial effects:

[0013] 1. The utility model arranges a rectangular plate, a screw rod, a connecting plate, a first sealing ring, a second sealing ring, a sliding rod and a first bearing, so that the inner cavity of the shell can remain sealed during detection, thereby avoiding direct discharge of gas during detection to affect the detection result. By arranging colored powder, a motor, a driving gear, a driven gear, a rotating shaft, a stirring blade, an air pressure sensor, a controller, a one-way valve, a connecting pipe and an air pump, not only can detection be performed by observing whether the air pressure value changes, but also by observing whether there is colored powder on the top of the PE protective film. Double detection can be performed to make the detection accurate.

[0014] 2. The utility model stabilizes the operation of the air pump and limits the position of the air pump by setting a fixed seat, stabilizes the operation of the screw rod and limits the position of the screw rod by setting a first bearing, and stabilizes the operation of the connecting plate by setting a sliding rod to prevent the connecting plate from rotating. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the shell of the utility model in the first viewing angle state;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the shell of the utility model in the second viewing angle state.

[0019] In the figure: 1. housing; 2. motor; 3. driving gear; 4. driven gear; 5. rotating shaft; 6. stirring blade; 7. air pressure sensor; 8. controller; 9. one-way valve; 10. connecting pipe; 11. air pump; 12. rectangular plate; 13. screw rod; 14. connecting plate; 15. first sealing ring; 16. second sealing ring; 17. sliding rod; 18. first bearing. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0021] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] See also Figure 1-4 , a wide-width PE protective film nondestructive testing device comprises a shell 1, a motor 2 is fixedly connected to the central axis of the front side of the shell 1, a driving gear 3 is fixedly connected to the output end of the motor 2, both sides of the driving gear 3 are meshed with driven gears 4, a rotating shaft 5 is fixedly connected to one side of the driven gear 4, a stirring blade 6 is fixedly connected to the surface of the rotating shaft 5, an air pressure sensor 7 is connected to the central axis on the left side of the shell 1, a one-way valve 9 is connected to the rear end of the right side of the shell 1, a connecting pipe 10 is connected to one side of the one-way valve 9, an air pump 11 is connected to one side of the connecting pipe 10, a rectangular plate 12 is fixedly connected to the top of the left side of the shell 1, a screw rod 13 is movably connected to the front side of the top of the rectangular plate 12, a connecting plate 14 is threadedly connected to the surface of the screw rod 13, a first sealing ring 15 is fixedly connected to the bottom of the connecting plate 14, and a second sealing ring 16 is fixedly connected to the top of the shell 1.

[0024] Through the above technical scheme: pour the colored powder into the inner cavity of the shell 1, then place the PE protective film on the top of the shell 1, and flatten the PE protective film, then rotate the screw rod 13, the screw rod 13 drives the connecting plate 14 to move, limit the PE protective film, so that the bottom of the PE protective film is in close contact with the second sealing ring 16, then control the motor 2 and the air pump 11 to work through the controller 8, exhaust to the inner cavity of the shell 1 through the one-way valve 9 and the connecting pipe 10, so as to blow up the colored powder, drive the driving gear 3 to rotate through the motor 2, drive the driven gear 4 to rotate, the driven gear 4 drives the rotating shaft 5 to rotate, and the rotating shaft 5 drives the stirring blade 6 to rotate, so that the colored powder can be distributed in the inner cavity of the shell 1, after the gas is filled, the air pressure value is detected by the air pressure sensor 7, and the display screen on the controller 8 is used to observe whether the air pressure value changes, and at the same time observe whether there is colored powder on the top of the PE protective film, so as to judge whether the PE protective film is intact.

[0025] One side of the air pump 11 is fixedly connected to a fixing seat, and one side of the fixing seat is fixedly connected to the housing 1 .

[0026] Through the above technical solution: by setting the fixing seat, the operation of the air pump 11 is stabilized and the air pump 11 is limited.

[0027] A controller 8 is fixedly connected to the front end of the left side of the shell 1 , and a circular hole is opened on the front side of the inner cavity of the shell 1 .

[0028] The bottom of the screw rod 13 is movably connected to the rectangular plate 12 via a first bearing 18 , and the top of the screw rod 13 is fixedly connected with a rotating handle.

[0029] Through the above technical solution: by providing the first bearing 18, the operation of the screw rod 13 is stabilized and the screw rod 13 is limited.

[0030] A slide bar 17 is slidably connected to the rear side of the inner cavity of the connecting plate 14 , and the bottom of the slide bar 17 is fixedly connected to the rectangular plate 12 .

[0031] Through the above technical solution: by providing the sliding rod 17, the operation of the connecting plate 14 is stabilized and the connecting plate 14 is prevented from rotating.

[0032] A rectangular groove is formed at the top of the inner cavity of the shell 1 , and a movable groove is formed at the top of the connecting plate 14 .

[0033] Both sides of the front side of the housing 1 are movably connected to the rotating shaft 5 via the second bearing, and the number of the driven gears 4 is two.

[0034] The working principle of the utility model is as follows: color powder is poured into the inner cavity of the shell 1, and then a PE protective film is placed on the top of the shell 1, and the PE protective film is flattened, and then the screw rod 13 is rotated, and the screw rod 13 drives the connecting plate 14 to move, and the PE protective film is limited, so that the bottom of the PE protective film is in close contact with the second sealing ring 16, and then the motor 2 and the air pump 11 are controlled by the controller 8 to work, and the air is exhausted to the inner cavity of the shell 1 through the one-way valve 9 and the connecting pipe 10, so that the color powder is blown up, and the driving gear 3 is driven by the motor 2 to rotate, and the driving gear 3 drives the driven gear 4 to rotate, and the driven gear 4 drives the rotating shaft 5 to rotate, and the rotating shaft 5 drives the stirring blade 6 to rotate, so that the color powder can be distributed in the inner cavity of the shell 1. After the gas is filled, the air pressure value is detected by the air pressure sensor 7, and the display screen on the controller 8 is used to observe whether the air pressure value changes, and at the same time, it is observed whether there is color powder on the top of the PE protective film, so as to judge whether the PE protective film is intact.

[0035] 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 nondestructive testing device for a wide PE protective film, comprising a housing (1), characterized in that: A motor (2) is fixedly connected to the central axis of the front side of the housing (1); a driving gear (3) is fixedly connected to the output end of the motor (2); driven gears (4) are meshed on both sides of the driving gear (3); a rotating shaft (5) is fixedly connected to one side of the driven gear (4); a stirring blade (6) is fixedly connected to the surface of the rotating shaft (5); an air pressure sensor (7) is connected to the central axis on the left side of the housing (1); a one-way valve (9) is connected to the rear end of the right side of the housing (1); and the one-way valve (9) is connected to the one-way valve (10). A connecting pipe (10) is connected to one side of the valve (9), and an air pump (11) is connected to one side of the connecting pipe (10). A rectangular plate (12) is fixedly connected to the top of the left side of the housing (1), and a screw rod (13) is movably connected to the front side of the top of the rectangular plate (12). A connecting plate (14) is threadedly connected to the surface of the screw rod (13), and a first sealing ring (15) is fixedly connected to the bottom of the connecting plate (14). A second sealing ring (16) is fixedly connected to the top of the housing (1).

2. The wide PE protective film nondestructive testing device according to claim 1 is characterized in that: One side of the air pump (11) is fixedly connected to a fixing seat, and one side of the fixing seat is fixedly connected to the housing (1).

3. The wide PE protective film nondestructive testing device according to claim 1 is characterized in that: A controller (8) is fixedly connected to the front end of the left side of the shell (1), and a circular hole is provided on the front side of the inner cavity of the shell (1).

4. The wide PE protective film nondestructive testing device according to claim 1 is characterized in that: The bottom of the screw rod (13) is movably connected to the rectangular plate (12) via a first bearing (18), and the top of the screw rod (13) is fixedly connected to a rotating handle.

5. The wide PE protective film nondestructive testing device according to claim 1 is characterized in that: A sliding rod (17) is slidably connected to the rear side of the inner cavity of the connecting plate (14), and the bottom of the sliding rod (17) is fixedly connected to the rectangular plate (12).

6. The wide PE protective film nondestructive testing device according to claim 1 is characterized in that: A rectangular groove is provided at the top of the inner cavity of the shell (1), and a movable groove is provided at the top of the connecting plate (14).

7. The wide PE protective film nondestructive testing device according to claim 1 is characterized in that: Both sides of the front side of the housing (1) are movably connected to the rotating shaft (5) via a second bearing, and the number of the driven gears (4) is two.

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