Packaging bag thickness detection device

By designing a packaging bag thickness detection device, which uses a rectangular mounting platform and guide rail system, combined with an adjustable bracket and dial indicator, the problem of existing equipment being unable to comprehensively detect the overall thickness of packaging bags has been solved. This enables accurate detection of packaging bag thickness and uniformity, improving quality control and production efficiency.

CN223896740UActive Publication Date: 2026-02-10SICHUAN TIANWEI FOOD CO LTD
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Patent Information

Application Number
CN202520653747.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-02-10
Estimated Expiration
2035-04-08

AI Technical Summary

Technical Problem

Most existing packaging bag thickness testing equipment measures only a single point or a local area, which cannot fully reflect the overall thickness distribution of the packaging bag. This is especially true for products with high requirements for thickness uniformity, such as food packaging and pharmaceutical packaging, leading to inaccurate quality assessment.

Method used

A packaging bag thickness detection device was designed, which adopts a rectangular mounting platform and guide rail system, combined with an adjustable bracket and dial indicator. Through the cooperation of sliding plate and fixed block, the packaging bag can be fully fixed and its thickness detected. The detection plate can be moved in the X and Y axis directions to read the changes of the dial indicator, thus realizing comprehensive thickness detection.

Benefits of technology

It enables comprehensive and accurate detection of packaging bag thickness and thickness uniformity, significantly improving the quality control level in packaging bag production and ensuring product safety and production efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223896740U_ABST
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Abstract

The utility model discloses a packaging bag thickness detection device, which belongs to the technical field of packaging material detection and comprises a mounting table, two first guide rails are arranged on the upper end face of the mounting table, a first sliding plate is arranged on the two first guide rails in a sliding manner, and two second guide rails are arranged on the first sliding plate. A second sliding plate is arranged on the two second guide rails, a detection plate is arranged on the upper end face of the second sliding plate, and fixing blocks are arranged on the periphery of the detection plate; a detection module is arranged on the upper end face of the mounting table and comprises an adjustable support and a dial indicator. When the thickness of the packaging bag is detected, a probe of the dial indicator is lightly contacted with the surface of the packaging bag, the detection plate is moved in the X-axis direction and the Y-axis direction, and the change condition of the dial indicator is read, so that whether the thickness of the packaging bag is uniform or not is detected, the thickness and the thickness uniformity of the packaging bag can be comprehensively and accurately detected, and the quality control level in packaging bag production is remarkably improved.
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Description

Technical Field

[0001] This utility model belongs to the field of packaging material testing technology, and in particular relates to a packaging bag thickness testing device. Background Technology

[0002] In the packaging materials industry, the thickness and uniformity of packaging bags are crucial indicators of product quality. The thickness of packaging bags not only affects the product's appearance and feel, but more importantly, it directly relates to product safety, shelf life, and breakage rate during transportation. Therefore, accurate and comprehensive testing of packaging bag thickness is a key step in ensuring product quality and production efficiency. However, most packaging bag thickness testing equipment on the market currently performs single-point or partial measurements, meaning measurements are taken at specific locations on the packaging bag. While this method is simple to operate, it cannot comprehensively reflect the overall thickness distribution of the packaging bag. This is especially true for products with high requirements for thickness uniformity, such as food and pharmaceutical packaging, where single-point measurements often fail to accurately assess overall quality. Packaging bags with uniform thickness are easier for packaging machines to handle and use, facilitating industrial production and improving production efficiency. Utility Model Content

[0003] In view of the above-mentioned problems in the prior art, the present invention aims to provide a packaging bag thickness detection device, which solves the problem that most existing packaging bag thickness detection devices measure only a single point or a local area, and cannot fully reflect the overall thickness distribution of the packaging bag.

[0004] To achieve the aforementioned utility model objectives, the present utility model adopts the following technical solution: A packaging bag thickness detection device is provided, comprising a mounting platform. Two first guide rails are horizontally spaced at an interval on the upper surface of the mounting platform. A first sliding plate is slidably mounted on the two first guide rails. Two second guide rails are horizontally spaced at an interval on the first sliding plates. A second sliding plate is slidably mounted on the two second guide rails. A detection plate for supporting the packaging bag is mounted on the upper surface of the second sliding plate. Multiple fixing blocks for securing the packaging bag are arranged around the detection plate. The length directions of the first guide rails and the second guide rails are perpendicular to each other. A detection module located on one side of the first guide rail is mounted on the upper surface of the mounting platform. The detection module includes an adjustable bracket and a dial indicator mounted on the adjustable bracket, with the dial indicator located on top of the second sliding plate.

[0005] Furthermore, the mounting platform has a rectangular shape when viewed from above, and each of the four corners of the lower end face of the mounting platform is equipped with a height-adjustable foot pad. The mounting platform allows the entire device to be placed on the operating table, making it convenient for operators to inspect; the height of the four foot pads is adjustable to make it more stable.

[0006] Furthermore, both the first sliding plate and the second sliding plate are slidably connected to the first guide rail and the second guide rail respectively via linear bearings. Specifically, linear bearings can be installed on both the first guide rail and the second guide rail, and the upper end face of the linear bearing is connected to the lower end face of the first sliding plate and the second sliding plate at the same height, ultimately achieving sliding engagement between the first sliding plate and the second sliding plate and the first guide rail and the second guide rail respectively.

[0007] Furthermore, the detection plate has a rectangular plate structure; the fixing block includes a long-side fixing baffle, a short-side fixing baffle, a first abutment block, and a second abutment block. The long-side fixing baffle is located on one side of the detection plate in the width direction, and its length direction is parallel to the long side of the detection plate; the short-side fixing baffle is located on one side of the detection plate in the length direction, and its length direction is parallel to the short side of the detection plate; the side view projections of the first abutment block and the second abutment block are both L-shaped; the first abutment block is located on the opposite side of the long-side fixing baffle, and the second abutment block is located on the opposite side of the short-side fixing baffle; two elongated holes are provided on the horizontal surface of both the first abutment block and the second abutment block, and both the first abutment block and the second abutment block are connected to the upper end face of the detection plate by bolts fasteners installed in the two elongated holes; the first abutment block can move along the width direction of the detection plate; the second abutment block can move along the length direction of the detection plate. The long-side fixing baffle and the short-side fixing baffle are used to fix one long side and one short side of the packaging bag, while the first and second abutment blocks are used to fix the other long side and the other short side of the packaging bag, ultimately fixing the packaging bag on the inspection table for easy thickness measurement by the dial indicator. The purpose of the sliding arrangement of the first and second abutment blocks is to accommodate packaging bags of different widths and lengths.

[0008] Furthermore, the vertical outer end faces of the first and second abutment blocks are used to contact the circumferential side of the packaging bag.

[0009] Furthermore, as a specific configuration of the adjustable bracket, the adjustable bracket includes a base fixedly connected to the upper surface of the mounting platform. A mounting shaft is vertically mounted on the base and can rotate around its own axis. The top of the mounting shaft is horizontally connected to a transverse rod via a right-angle fastener with an adjusting screw. The end of the transverse rod is connected to a dial indicator via a right-angle fastener with an adjusting screw. Furthermore, the length of the mounting shaft is adjustable. By rotating the mounting shaft, the position of the dial indicator can be adjusted so that it is above the detection plate; by changing the height of the mounting shaft, the height of the dial indicator can be adjusted so that the dial indicator probe contacts the surface of the packaging bag on the detection plate, achieving the purpose of thickness detection.

[0010] Specifically, the method of using the packaging bag thickness detection device of this utility model is as follows: First, after arranging a stack of packaging bags or a fixed number of packaging bags neatly, place them on the detection table, and make one long side and one short side of the packaging bag close to the long side fixing baffle and the short side fixing baffle. Then, adjust the first and second blocks so that the vertical outer end faces of the first and second blocks are close to the other long side and the other short side of the packaging bag, respectively, so that the packaging bag is fixed on the detection table. After placement, rotate the mounting shaft and adjust the height of the mounting shaft to lightly touch the surface of the packaging bag with the dial indicator probe. Then, move the detection plate in the X and Y axis directions and read the changes of the dial indicator to detect whether the thickness of the packaging bag is uniform.

[0011] Compared with existing packaging bag thickness detection equipment, the advantages of this utility model are as follows:

[0012] The packaging bag thickness detection device of this utility model can comprehensively and accurately detect the thickness and thickness uniformity of packaging bags, thereby significantly improving the quality control level in packaging bag production. It solves the problem that most existing packaging bag thickness detection devices measure only one point or a local area, which cannot fully reflect the overall thickness distribution of packaging bags. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a packaging bag thickness detection device.

[0014] Figure 2 This is a top view schematic diagram of a packaging bag thickness detection device.

[0015] The components include: 1. Mounting platform; 2. First guide rail; 3. First sliding plate; 4. Second guide rail; 5. Second sliding plate; 6. Packaging bag; 7. Detection plate; 8. Adjustable bracket; 801. Base; 802. Mounting shaft; 803. Horizontal bar; 9. Dial indicator; 10. Long side fixed baffle; 11. Short side fixed baffle; 12. First support block; 13. Second support block; 14. Long strip hole. Detailed Implementation

[0016] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All inventions utilizing the concept of this utility model are protected.

[0017] like Figures 1-2As shown, this utility model provides a packaging bag thickness detection device, which includes a mounting platform 1. Two first guide rails 1 are horizontally spaced on the upper surface of the mounting platform 1. A first sliding plate 3 is slidably mounted on the two first guide rails 1. Two second guide rails 4 are horizontally spaced on the first sliding plate 3. A second sliding plate 5 is slidably mounted on the two second guide rails 4. A detection plate 7 for supporting the packaging bag 6 is provided on the upper surface of the second sliding plate 5. Multiple fixing blocks for fixing the packaging bag 6 are provided around the detection plate 7. The length direction of the first guide rail 1 is perpendicular to the length direction of the second guide rail 4. A detection module located on one side of the first guide rail 1 is provided on the upper surface of the mounting platform 1. The detection module includes an adjustable bracket 8 and a dial indicator 9 mounted on the adjustable bracket 8. The dial indicator 9 is located on the top of the second sliding plate 5.

[0018] Preferably, but not limited to, the top view projection of the mounting platform 1 is rectangular, and each of the four corners of the lower end face of the mounting platform 1 is provided with a height-adjustable foot pad. The mounting platform 1 is designed so that the entire equipment can be placed on the operating table, which is convenient for the operator to inspect; the height of the four foot pads is adjustable so that it is placed more stably.

[0019] Specifically, the first sliding plate 3 and the second sliding plate 5 are slidably connected to the first guide rail 1 and the second guide rail 4 respectively via linear bearings. Specifically, linear bearings can be installed on both the first guide rail 1 and the second guide rail 4, and the upper end face of the linear bearing is connected to the lower end face of the first sliding plate 3 and the second sliding plate 5 at the same height, so that the first sliding plate 3 and the second sliding plate 5 are slidably engaged with the first guide rail 1 and the second guide rail 4 respectively.

[0020] Specifically, the detection plate 7 has a rectangular plate structure; as a specific arrangement of the fixing block, the fixing block includes a long-side fixing baffle 10, a short-side fixing baffle 11, a first abutment block 12, and a second abutment block 13. The long-side fixing baffle 10 is located on one side of the width direction of the detection plate 7, and the length direction of the long-side fixing baffle 10 is parallel to the long side of the detection plate 7; the short-side fixing baffle 11 is located on one side of the length direction of the detection plate 7, and the length direction of the short-side fixing baffle 11 is parallel to the short side of the detection plate 7; the side view projections of the first abutment block 12 and the second abutment block 13 are both L-shaped structures; the first abutment block 1... The first support block 12 is positioned on the side opposite to the long side fixing baffle 10, and the second support block 13 is positioned on the side opposite to the short side fixing baffle 11. Two elongated holes 14 are provided on the horizontal surfaces of both the first support block 12 and the second support block 13. Both the first support block 12 and the second support block 13 are connected to the upper end face of the detection plate 7 via bolts fasteners installed within the two elongated holes 14. The first support block 12 can move along the width direction of the detection plate 7; the second support block 13 can move along the length direction of the detection plate 7. Furthermore, the vertical outer end faces of the first support block 12 and the second support block 13 are used to contact the circumferential side of the packaging bag 6. The long side fixing baffle 10 and the short side fixing baffle 11 are used to fix one long side and one short side of the packaging bag 6, while the first support block 12 and the second support block 13 are used to fix the other long side and the other short side of the packaging bag 6, ultimately fixing the packaging bag 6 on the detection table for easy thickness measurement by the dial indicator 9. The purpose of the sliding arrangement of the first support block 12 and the second support block 13 is to accommodate packaging bags 6 of different widths and lengths.

[0021] Furthermore, the adjustable bracket 8 includes a base 801 fixedly connected to the upper surface of the mounting platform 1. A mounting shaft 802 is vertically mounted on the base 801, and the mounting shaft 802 can rotate around its own axis. The top of the mounting shaft 802 is horizontally connected to a transverse rod 803 via a right-angle fastener with an adjusting screw. The end of the transverse rod 803 is connected to a dial indicator 9 via a right-angle fastener with an adjusting screw. Furthermore, the length of the mounting shaft 802 is adjustable. By rotating the mounting shaft 802, the position of the dial indicator 9 can be adjusted so that the dial indicator 9 is above the detection plate 7; by changing the height of the mounting shaft 802, the height of the dial indicator 9 can be adjusted so that the probe of the dial indicator 9 contacts the surface of the packaging bag 6 on the detection plate 7, achieving the purpose of thickness detection.

[0022] Specifically, the working process of a packaging bag thickness detection device of this utility model is as follows: First, after arranging a stack of packaging bags 6 or a fixed number of packaging bags 6 neatly, place them on the detection table, and make one long side and one short side of the packaging bag 6 close to the long side fixing baffle 10 and the short side fixing baffle 11. Then, adjust the first support block 12 and the second support block 13 so that the vertical outer end face of the first support block 12 and the second support block 13 are close to the other long side and the other short side of the packaging bag 6, so that the packaging bag 6 is fixed on the detection table. After placement, rotate the mounting shaft 802 and adjust the height of the mounting shaft 802, and lightly touch the surface of the dial indicator 9 with the probe. Then, move the detection plate 7 in the X-axis and Y-axis directions and read the changes of the dial indicator 9 to detect whether the thickness of the packaging bag 6 is uniform.

[0023] In summary, the packaging bag thickness detection device of this utility model can comprehensively and accurately detect the thickness and thickness uniformity of the packaging bag 6, thereby significantly improving the quality control level in the production of the packaging bag 6. It solves the problem that most existing packaging bag thickness detection devices measure only a single point or a local area, and cannot fully reflect the overall thickness distribution of the packaging bag 6.

Claims

1. A packaging bag thickness detection device, characterized in that, The device includes a mounting platform. Two first guide rails are horizontally spaced at their upper surfaces. A first sliding plate slides along the two first guide rails. Two second guide rails are horizontally spaced at their first sliding plates. A second sliding plate slides along the two second guide rails. A detection plate for supporting packaging bags is located on the upper surface of each second sliding plate. Multiple fixing blocks for securing the packaging bags are arranged around the detection plate. The length directions of the first and second guide rails are perpendicular to each other. A detection module located on one side of the first guide rails is mounted on the upper surface of the mounting platform. The detection module includes an adjustable bracket and a dial indicator mounted on the adjustable bracket, with the dial indicator located on top of the second sliding plate.

2. The packaging bag thickness detection device according to claim 1, characterized in that, The mounting platform has a rectangular shape when viewed from above, and each of the four corners of the lower end face of the mounting platform is equipped with a height-adjustable foot pad.

3. The packaging bag thickness detection device according to claim 1, characterized in that, The first sliding plate and the second sliding plate are slidably connected to the first guide rail and the second guide rail respectively via linear bearings.

4. The packaging bag thickness detection device according to claim 1, characterized in that, The detection plate has a rectangular plate structure. The fixing block includes a long-side fixing baffle, a short-side fixing baffle, a first abutment block, and a second abutment block. The long-side fixing baffle is located on one side of the detection plate in the width direction, and its length direction is parallel to the long side of the detection plate. The short-side fixing baffle is located on one side of the detection plate in the length direction, and its length direction is parallel to the short side of the detection plate. The side view projection of the first abutment block and the second abutment block both have an L-shaped structure. The first abutment block is located on the opposite side of the long-side fixing baffle, and the second abutment block is located on the opposite side of the short-side fixing baffle. Two elongated holes are provided on the horizontal surface of both the first abutment block and the second abutment block. Both the first abutment block and the second abutment block are connected to the upper end face of the detection plate by bolts fasteners installed in the two elongated holes. The first abutment block can move along the width direction of the detection plate, and the second abutment block can move along the length direction of the detection plate.

5. The packaging bag thickness detection device according to claim 4, characterized in that, The vertical outer end faces of the first and second abutment blocks are used to contact the circumferential side of the packaging bag.

6. The packaging bag thickness detection device according to any one of claims 1 to 5, characterized in that, The adjustable bracket includes a base fixedly connected to the upper surface of the mounting platform. A mounting shaft is vertically arranged on the base. The mounting shaft can rotate around its own axis. A horizontal rod is horizontally connected to the top of the mounting shaft through a right-angle fastener with a tightening screw. The end of the horizontal rod is connected to the dial indicator through a right-angle fastener with a tightening screw.

7. The packaging bag thickness detection device according to claim 6, characterized in that, The length of the mounting shaft is adjustable.