A thickness measuring device for use in the production of environmentally friendly paper cups
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING ZHURI PACKAGING TECH CO LTD
- Filing Date
- 2025-09-23
- Publication Date
- 2026-06-30
AI Technical Summary
Existing technologies use contact measurement methods during paper cup production, which can damage the printed surface, reduce yield, and increase production costs.
A non-contact thickness measurement device is used, which utilizes a laser sensor and a roller transmission mechanism. The roller is driven by a motor to move the paper cups in an orderly manner, and the thickness is checked by two measurement units. The thickness of the paper cup is calculated using a triangular reflection method laser sensor.
It achieves non-contact measurement, reduces damage to the printed surface, improves detection accuracy and speed, increases yield, and reduces resource waste and production costs.
Smart Images

Figure CN224435307U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a thickness measuring device used in the production of environmentally friendly paper cups. Background Technology
[0002] During the paper cup production process, the thickness of the printed paper cup material needs to be measured. Existing technologies generally use contact measurement methods. Although this method is low in cost, the contact can easily damage the printed surface or the coated paper, resulting in a decrease in the yield of the production line, waste of resources, and an increase in production costs. Utility Model Content
[0003] This invention provides a thickness measuring device for use in the production of environmentally friendly paper cups.
[0004] The technical solution adopted by this utility model to solve its technical problem is: a thickness measuring device for the production of environmentally friendly paper cups, including a transmission mechanism and a measuring mechanism. The transmission mechanism includes two parallel guide rails with a gap between them. The measuring mechanism has two measuring units installed on the same side of the guide rails.
[0005] The guide rail is equipped with several rollers, each roller is located inside the guide rail and is on the same straight line. Each guide rail is equipped with a motor on its outer side, and two guide rails are located between two motors. The motors drive the rollers located in the same track to rotate via belts.
[0006] The measuring unit includes a bracket and two laser sensors. The bracket is fixed to one side of the guide rail, and the two laser sensors are located on the upper and lower sides of the guide rail respectively. The two laser sensors are arranged facing each other, and the sensing head of the lower laser sensor is located between the two guide rails.
[0007] The distance between the two laser sensors in the measuring unit closer to the motor is smaller than the distance between the two laser sensors in the measuring unit farther from the motor.
[0008] Preferably, the motor is a servo motor, and the rollers located in the same guide rail are driven by the same belt.
[0009] Preferably, the laser sensor is a triangular reflection laser sensor.
[0010] The beneficial effects of this utility model are that the thickness measuring device used in the production of environmentally friendly paper cups uses a motor-driven roller to move the product to be tested through in an orderly manner. During the passage, the thickness is checked by two measuring units. This not only achieves non-contact measurement, reducing damage caused by contact and improving yield, but also increases the detection speed. The dual detection method also improves the detection accuracy, making it highly practical and worthy of promotion. Attached Figure Description
[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0012] Figure 1 This is a schematic diagram of the thickness measuring device for the production of environmentally friendly paper cups according to this utility model.
[0013] Figure 2 This is a schematic diagram of the transmission mechanism of the thickness measuring device for the production of environmentally friendly paper cups according to this utility model.
[0014] In the diagram: 1. Guide rail, 2. Roller, 3. Motor, 4. Bracket, 5. Laser sensor. Detailed Implementation
[0015] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0016] like Figure 1-2 As shown, a thickness measuring device for the production of environmentally friendly paper cups includes a transmission mechanism and a measuring mechanism. The transmission mechanism includes two parallel guide rails 1 arranged side by side with a gap between them. The measuring mechanism has two measuring units installed on the same side of the guide rails 1.
[0017] The guide rail 1 is provided with several rollers 2, each roller 2 is located inside the guide rail 1 and is located on the same straight line. Each guide rail 1 is provided with a motor 3 on its outer side, and two guide rails 1 are located between two motors 3. The motors 3 drive each roller 2 located in the same track to rotate through a belt.
[0018] The measuring unit includes a bracket 4 and two laser sensors 5. The bracket 4 is fixed on one side of the guide rail 1. The two laser sensors 5 are located on the upper and lower sides of the guide rail 1 respectively. The two laser sensors 5 are arranged facing each other. The sensing head of the lower laser sensor 5 is located between the two guide rails 1.
[0019] The distance between the two laser sensors 5 of the measuring unit closer to the motor 3 is smaller than the distance between the two laser sensors 5 of the measuring unit farther away from the motor 3.
[0020] Preferably, the motor 3 is a servo motor, and each roller 2 located in the same guide rail 1 is driven by the same belt.
[0021] Preferably, the laser sensor 5 is a triangular reflection laser sensor.
[0022] During testing, the paper cup to be tested rests on two guide rails 1. The motor 3 drives each roller 2 to rotate via a belt, achieving the purpose of transporting the cup to be tested. When the cup passes the first measuring unit, the laser emitted by the upper and lower laser sensors 5 is reflected when it encounters the surface of the object being tested. The triangular reflection method laser sensor used here actually uses the same probe for both the generating and receiving probes. After the upper and lower laser sensors 5 receive the reflected laser, they can calculate the distance between the probe tip and the object. By measuring the distance to the upper and lower surfaces through the two opposing laser sensors 5, the thickness of the object being tested can be calculated. In fact, the distance between the two laser sensors 5 in the front measuring unit is smaller than the distance between the two laser sensors 5 in the rear measuring unit. The two distances are set here mainly to measure two thickness values under different detection parameter settings. This not only verifies the validity of the data by the deviation between the two sets of data, but also allows for averaging when both values are within the valid range, making the result more accurate.
[0023] In fact, a threshold for the difference between two values can be preset here. When the difference between the two thickness values is within the preset range, it means that the measurement result is valid and the average value can be calculated to obtain the result. When the difference between the two thickness values is outside the preset range, that is, when the difference between the two thickness values is large, it means that there is a large deviation in the machine's measurement and an engineer needs to calibrate it.
[0024] Compared with existing technologies, this thickness measuring device for the production of environmentally friendly paper cups uses a motor 3 to drive a roller 2 to move the product to be tested through in an orderly manner. During the passage, the thickness is checked by two measuring units. This not only achieves non-contact measurement, reducing damage caused by contact and improving yield, but also increases the detection speed. The dual detection method also improves the detection accuracy, making it highly practical and worthy of promotion.
[0025] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A thickness measuring device for use in the production of environmentally friendly paper cups, characterized in that, It includes a transmission mechanism and a measuring mechanism. The transmission mechanism includes two parallel guide rails arranged side by side with a gap between them. The measuring mechanism has two measuring units installed on the same side of the guide rails. The guide rail is equipped with several rollers, each roller is located inside the guide rail and is on the same straight line. Each guide rail is equipped with a motor on its outer side, and two guide rails are located between two motors. The motors drive the rollers located in the same track to rotate via belts. The measuring unit includes a bracket and two laser sensors. The bracket is fixed to one side of the guide rail, and the two laser sensors are located on the upper and lower sides of the guide rail respectively. The two laser sensors are arranged facing each other, and the sensing head of the lower laser sensor is located between the two guide rails. The distance between the two laser sensors in the measuring unit closer to the motor is smaller than the distance between the two laser sensors in the measuring unit farther from the motor.
2. The thickness measuring device for use in the production of environmentally friendly paper cups as described in claim 1, characterized in that, The motor is a servo motor, and the rollers located in the same guide rail are driven by the same belt.
3. The thickness measuring device for producing environmentally friendly paper cups as described in claim 1, characterized in that, The laser sensor is a triangular reflection laser sensor.