Quality inspection device and system for calabash pneumatic membrane production line

By using pressure holding tests and combined testing devices, the problem of automated testing of gourd-shaped inflatable membranes has been solved, achieving efficient and accurate airtightness and shape testing, and adapting to complex curved surface structures and reflective membrane materials.

CN224216245UActive Publication Date: 2026-05-08JIAXING HUAYUE PACKAGING PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIAXING HUAYUE PACKAGING PROD CO LTD
Filing Date
2025-05-07
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Traditional manual inspection of gourd-shaped inflatable membranes is inefficient and prone to missed detections. Existing equipment is difficult to adapt to the automated inspection of complex curved structures. Air tightness inspection is time-consuming and cannot be performed online. Visual inspection systems have poor adaptability to reflective membrane materials and have a high misjudgment rate.

Method used

The pressure holding test method, combined with components such as support plate, L-shaped plate, cylinder, air pump, industrial camera, and LED light, is used to detect the air tightness of the hoist membrane. The pressure sensor and high-resolution camera are used for online detection, which can adapt to complex curved surface structures.

Benefits of technology

It improves the efficiency of airtightness testing of gourd film, enhances the adaptability to testing reflective film materials, and reduces the false judgment rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a calabash pneumatic membrane production line quality inspection device and system, which comprises a support plate and an L-shaped plate, the vertical end of the L-shaped plate is provided with a through groove, an adjusting block is slidably mounted in the through groove, the front side of the adjusting block is provided with a second cylinder, the telescopic shaft end of the second cylinder is provided with a bending plate, and an air pump is mounted above the horizontal end of the bending plate. A first air cylinder is installed above the L-shaped plate, a telescopic shaft of the first air cylinder is connected with an adjusting block, a high-resolution industrial camera is installed in the middle of the lower portion of the horizontal end of the first installation frame, and a plurality of annular LED lamps are installed on the circumference of the lower portion of the horizontal end of the first installation frame at equal intervals. The calabash film air tightness detection device is reasonable in structure and good in practicability, the air tightness of a calabash film is detected by adopting a pressure maintaining test method, the efficiency is higher, and the detection adaptability to the reflective film material is high.
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Description

Technical Field

[0001] This utility model relates to a quality inspection device and system for a gourd-inflatable film production line, belonging to the technical field of gourd-inflatable film product equipment. Background Technology

[0002] The gourd-shaped inflatable membrane needs to be tested for its sealing performance, shape symmetry, and surface defects (bubbles / scratches).

[0003] Traditional manual inspection is inefficient and prone to missing defects. Existing quality inspection equipment is mostly designed for flat sheet membrane materials and is difficult to adapt to the automated inspection of complex curved structures like gourds. Existing technologies also have drawbacks: airtightness testing often uses the water bath method, which is time-consuming and cannot be performed online. Visual inspection systems have poor adaptability to reflective membrane materials and have a high false positive rate. There is an urgent need for a quality inspection device and system for gourd-shaped inflatable membrane production lines to solve the above-mentioned problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a quality inspection device and system for a gourd-shaped air-filled film production line to solve the problems mentioned in the background technology. This utility model has a reasonable structure and good practicality. It adopts the pressure holding test method to detect the air tightness of the gourd film, which is more efficient and has strong adaptability to the detection of reflective film materials.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quality inspection device and system for a gourd-type air-supported membrane production line, comprising a support plate and an L-shaped plate. The support plate has a receiving groove on its upper surface. A second mounting bracket and a first mounting bracket are installed on the upper surface of the support plate from left to right. The vertical end of the L-shaped plate has a through groove. An adjusting block is slidably installed inside the through groove. A second cylinder is installed on the front side of the adjusting block. A bending plate is installed at the telescopic shaft end of the second cylinder. An air pump is installed above the horizontal end of the bending plate. A first cylinder is installed above the L-shaped plate. The telescopic shaft of the first cylinder is connected to the adjusting block. A high-resolution industrial camera is installed in the center below the horizontal end of the first mounting bracket. Multiple ring-shaped LED lights are equidistantly installed around the circumference below the horizontal end of the first mounting bracket.

[0006] Furthermore, a U-shaped plate is installed above the second mounting bracket, and a rotary motor is installed inside the U-shaped plate. A lead screw is installed on the rotating shaft of the rotary motor, and a threaded strip is threaded to the outside of the lead screw.

[0007] Furthermore, a pressure sensor is installed at the lower end of the threaded strip, and a display screen is installed on the left side of the threaded strip.

[0008] Furthermore, the air pump output end passes through the bent plate, and an integrated inflation nozzle is sealed and installed on the air pump output end, with an air pressure ring embedded inside the integrated inflation nozzle.

[0009] Furthermore, the threaded strip is slidably connected to the second mounting bracket.

[0010] Furthermore, the L-shaped plate is installed on the rear left end of the support plate, and drive motors are respectively installed on the front and rear sides and the left and right ends of the support plate. The rotating shafts of the multiple drive motors extend into the receiving groove. The multiple drive motors are grouped in pairs, and a transmission shaft is installed between the rotating shafts of the two groups of drive motors. A belt is connected between the two transmission shafts.

[0011] The beneficial effects of this utility model: This utility model provides a quality inspection device and system for a gourd-type air-filled membrane production line. Because this utility model adds an adjusting block, a second cylinder, a bending plate, an air pump integrated inflation nozzle, a high-resolution industrial camera, a ring LED light, a U-shaped plate, a rotary motor, a lead screw, a threaded strip, a pressure sensor, and a display screen, our design improvements and actual use have shown that this device has a reasonable structure, good practicality, and adopts a pressure holding test method to detect the air tightness of the gourd membrane, which is more efficient and has strong adaptability to the detection of reflective membrane materials. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a quality inspection device and system for a gourd-type air-insulating membrane production line according to the present invention.

[0014] Figure 2 This is a three-dimensional schematic diagram of the support plate structure of a quality inspection device and system for a gourd-type air-insulating film production line according to the present invention.

[0015] Figure 3 This is a three-dimensional schematic diagram of the L-shaped plate structure of a quality inspection device and system for a gourd-type air-insulating membrane production line according to the present invention.

[0016] Figure 4 This is a three-dimensional schematic diagram of the second mounting frame structure of a quality inspection device and system for a gourd-type air-insulating film production line according to the present invention.

[0017] Figure 5 This is a three-dimensional schematic diagram of the first mounting frame structure of a quality inspection device and system for a gourd-type air-filled membrane production line according to the present invention.

[0018] In the diagram: 1-Support plate, 2-L-shaped plate, 3-First mounting bracket, 4-Second mounting bracket, 5-Receiving groove, 6-Belt, 7-Drive motor, 8-Transmission shaft, 9-Through groove, 10-First cylinder, 11-Adjusting block, 12-Second cylinder, 13-Bending plate, 14-Air pump, 15-Integrated air inlet, 16-High-resolution industrial camera, 17-Ring LED light, 18-U-shaped plate, 19-Rotary motor, 20-Lead screw, 21-Threaded strip, 22-Pressure sensor, 23-Display screen. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] Please see Figures 1-5 This utility model provides a technical solution: a quality inspection device and system for a gourd-type air-insulating film production line, including a support plate 1 and an L-shaped plate 2. A receiving groove 5 is provided above the support plate 1. A second mounting bracket 4 and a first mounting bracket 3 are installed above the support plate 1 from left to right. A through groove 9 is provided at the vertical end of the L-shaped plate 2. An adjusting block 11 is slidably installed inside the through groove 9. A second cylinder 12 is installed on the front side of the adjusting block 11. A bending plate 13 is installed at the telescopic shaft end of the second cylinder 12. An air pump 14 is installed above the horizontal end of the bending plate 13. A first cylinder 10 is installed above the L-shaped plate 2. The telescopic shaft of the first cylinder 10 is connected to the adjusting block 11. A high-resolution industrial camera 16 is installed in the middle of the lower part of the horizontal end of the first mounting bracket 3. Multiple ring-shaped LED lights 17 are equidistantly installed around the circumference of the lower part of the horizontal end of the first mounting bracket 3. This design solves the problems of water bath testing, which is time-consuming and cannot be performed online, and the poor adaptability and high false judgment rate of visual inspection systems for reflective film materials.

[0021] In the first embodiment of this utility model: a U-shaped plate 18 is installed above the second mounting bracket 4. A rotary motor 19 is installed inside the upper part of the U-shaped plate 18. A lead screw 20 is installed on the rotating shaft of the rotary motor 19. A threaded strip 21 is threadedly connected to the outer side of the lead screw 20. The cooperation between the lead screw 20 and the rotary motor 19 facilitates the movement of the threaded strip 21. A pressure sensor 22 is installed at the lower end of the threaded strip 21, and a display screen 23 is installed on the left side of the threaded strip 21. The pressure sensor 22 facilitates the detection of air leakage in the gourd membrane.

[0022] The output end of the air pump 14 penetrates through the bending plate 13. An integrated inflating nozzle 15 is sealed and installed at the output end of the air pump 14. A pneumatic ring is embedded in the integrated inflating nozzle 15. By setting the integrated inflating nozzle 15, it is convenient to inflate the gourd film. The threaded bar 21 is slidably connected to the second mounting bracket 4. By slidably connecting the threaded bar 21 with the second mounting bracket 4, it is convenient to provide guidance for the threaded bar 21. The L-shaped plate 2 is installed at the left end of the rear side of the support plate 1. Driving motors 7 are respectively installed at the left and right ends of the front and rear sides of the support plate 1. The rotating shafts of the multiple driving motors 7 respectively extend into the receiving groove 5. The multiple driving motors 7 are grouped in pairs, and transmission shafts 8 are respectively installed between the rotating shafts of the two groups of driving motors 7. A belt 6 is传动连接 between the two transmission shafts 8. By setting the multiple driving motors 7, the two transmission shafts 8 and the belt 6, it is convenient to transport the gourd film.

[0023] As the second embodiment of the present utility model: During use, place the gourd film on the belt 6, then start the first cylinder 10 to drive the adjusting block 11 to move downward, and then drive the integrated inflating nozzle 15 to move downward. The inflation port of the gourd film is aligned with the integrated inflating nozzle 15. Then start the second cylinder 12 to make the integrated inflating nozzle 15 insert into the inflation port of the gourd film. Since a pneumatic ring is embedded in the integrated inflating nozzle 15, it can expand and tightly adhere to the inflation port during inflation (similar to the principle of a tire valve core), thus having a good air leakage prevention effect. Then start the air pump 14 to inflate the gourd film. Inflation pressure: 3 - 8 kPa (adjusted according to the film thickness). Then start the rotating motor 19 to drive the丝杆 20 to rotate, and then drive the threaded bar 21 to move downward, making the pressure sensor 22 contact the gourd film. At this time, the pressure value received by the pressure sensor 22 will be displayed on the display screen 23. At this time, keep the gourd film under pressure for 10 seconds. If the reduction threshold of the pressure received by the pressure sensor 22 ≤ 3% is qualified. Then reset the integrated inflating nozzle 15. Then start the multiple driving motors 7 to drive the two transmission shafts 8 to rotate correspondingly, and then drive the belt 6 to move, thereby transporting the gourd film. When the gourd film moves below the high-resolution industrial camera 16, the high-resolution industrial camera 16 will take pictures of the gourd film and then compare it with the standard model. The shape deformation is judged by comparing the contour differences of the standard template (such as the edge pixel offset ≤ 2%). Turning on the multiple annular LED lights 17 can reduce the reflection interference caused by the gourd film itself. The connection method between the pressure sensor 22 and the display screen 23 is an existing mature technology. The following lists a connection method for visualizing the numerical value of the pressure sensor 22 through the display screen 23:

[0024] It should be noted that there is an unclear "传动连接" in the original text which is tentatively translated as "传动连接" here. You may need to check and correct it according to the actual situation. Also, "丝杆" is likely a misspelling and should be "丝杆" or a correct mechanical part name.The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A quality inspection device and system for a gourd-type air-supported film production line, comprising a support plate (1) and an L-shaped plate (2), characterized in that: The support plate (1) is provided with a receiving groove (5) above it. The support plate (1) is provided with a second mounting bracket (4) and a first mounting bracket (3) from left to right above it. The vertical end of the L-shaped plate (2) is provided with a through groove (9). An adjusting block (11) is slidably installed inside the through groove (9). A second cylinder (12) is installed on the front side of the adjusting block (11). A bending plate (13) is installed on the telescopic shaft end of the second cylinder (12). An air pump (14) is installed above the horizontal end of the bent plate (13), a first cylinder (10) is installed above the L-shaped plate (2), the telescopic shaft of the first cylinder (10) is connected to the adjusting block (11), a high-resolution industrial camera (16) is installed in the middle of the lower part of the horizontal end of the first mounting bracket (3), and multiple ring LED lights (17) are installed equidistantly around the lower part of the horizontal end of the first mounting bracket (3).

2. The quality inspection device and system for a gourd-type air-filled membrane production line according to claim 1, characterized in that: A U-shaped plate (18) is installed above the second mounting bracket (4). A rotary motor (19) is installed inside the U-shaped plate (18). A lead screw (20) is installed on the rotating shaft of the rotary motor (19). A threaded strip (21) is threaded to the outside of the lead screw (20).

3. The quality inspection device and system for a gourd-type air-insulating film production line according to claim 2, characterized in that: A pressure sensor (22) is installed at the lower end of the threaded bar (21), and a display screen (23) is installed on the left side of the threaded bar (21).

4. The quality inspection device and system for a gourd-type air-insulating film production line according to claim 1, characterized in that: The output end of the air pump (14) passes through the bent plate (13), and the output end of the air pump (14) is sealed with an integrated air inlet (15), and the integrated air inlet (15) is embedded with an air pressure ring.

5. The quality inspection device and system for a gourd-type air-insulating film production line according to claim 3, characterized in that: The threaded strip (21) is slidably connected to the second mounting bracket (4).

6. The quality inspection device and system for a gourd-type air-insulating film production line according to claim 1, characterized in that: The L-shaped plate (2) is installed on the left rear side of the support plate (1). The support plate (1) has drive motors (7) installed on the front and rear sides and the left and right ends respectively. The rotation shafts of the multiple drive motors (7) extend into the receiving groove (5) respectively. The multiple drive motors (7) are in pairs. A transmission shaft (8) is installed between the rotation shafts of the two groups of drive motors (7). A belt (6) is connected between the two transmission shafts (8).