A thickness detection device for foam plastic film processing

Abstract

The utility model discloses a kind of thickness detection devices for foamed plastic film processing, belong to foamed plastic film detection technical field, a kind of thickness detection devices for foamed plastic film processing, including rack and the inner side of the rack and the hollow structure setting of inside is fixedly connected to the platform, the inner chamber top wall and bottom wall of the rack are respectively installed with the first laser displacement sensor and the second laser displacement sensor between mutually opposite emission end, the top and bottom of the platform are respectively opened with the through hole corresponding with the first laser displacement sensor and the second laser displacement sensor, the top of the rack is installed with display control host computer, it is accurately determined when installing by the vertical distance between two sensors, therefore the thickness of foamed plastic film can be obtained by simple mathematical calculation, and display on the display screen of display control host computer, effectively improve the precision of detection.

Description

Technical Field

[0001] This utility model relates to the field of foam plastic coating inspection technology, and more specifically, to a thickness inspection device for foam plastic coating processing. Background Technology

[0002] Foam plastic lamination refers to a process in which a transparent plastic film is applied to the surface of foam plastic through hot pressing to protect its surface and increase its gloss. This process is often called "lamination" or "coating" and is a common technique in the processing of printed materials and plastic products. After processing, the thickness of the foam plastic film needs to be measured to ensure the quality of the film production.

[0003] However, the thickness of existing foam plastic film is mainly measured manually using tools. This is problematic because mechanical measuring tools are prone to errors during measurement and reading, and the cumulative effect of these errors leads to inaccurate thickness detection. Therefore, we propose a thickness detection device for foam plastic film processing to address these issues. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a thickness detection device for foam plastic coating processing. It accurately measures the vertical distance between two sensors during installation, so the thickness of the foam plastic coating can be calculated by simple mathematical calculation and displayed on the display screen of the control host, effectively improving the detection accuracy.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A thickness detection device for foam plastic coating processing includes a frame and a platform fixedly connected to the inner side of the frame and having a hollow structure inside. The top and bottom walls of the inner cavity of the frame are respectively equipped with a first laser displacement sensor and a second laser displacement sensor that emits lasers at each other.

[0009] The top and bottom of the platform are respectively provided with through holes corresponding to the first laser displacement sensor and the second laser displacement sensor;

[0010] A display and control host is installed on the top of the rack;

[0011] The display control host has a support frame on one side, which is fixedly connected to the top edge of the frame. The side wall of the support frame has symmetrically arranged longitudinal guide holes. The outside of the frame is surrounded by a fence. The top of the fence is fixedly connected to a guide frame that slides through the guide holes. A servo motor is installed on the top of the support frame, and the power output end of the servo motor is driven by a lead screw that is screwed to the guide frame.

[0012] Furthermore, an alarm is installed on one side of the display control host.

[0013] Furthermore, a gap is provided between the outer wall of the frame and the inner wall of the enclosure.

[0014] Furthermore, the power output shaft of the servo motor passes through the top of the support frame, and the power output shaft of the servo motor is connected to the top of the lead screw via a coupling.

[0015] Furthermore, a bearing seat is fixedly connected to the top of the frame and interference-fitted to the bottom end of the lead screw.

[0016] Furthermore, both the enclosure and the frame are made of aluminum alloy.

[0017] Furthermore, the output terminals of the first laser displacement sensor and the second laser displacement sensor are electrically connected to the input terminal of the display control host, and the output terminal of the display control host is electrically connected to the input terminals of the alarm and the servo motor, respectively.

[0018] 3. Beneficial effects

[0019] Compared with existing technologies, the advantages of this utility model are:

[0020] (1) In this scheme, the upper second laser displacement sensor emits a laser beam that passes vertically through the through hole and is directed toward the upper surface of the foam plastic film. The laser beam is reflected by the upper surface and received by the second laser displacement sensor. Similarly, the lower first laser displacement sensor emits a laser beam that is directed toward the lower surface of the foam plastic film. The reflected light is also received by the first laser displacement sensor. The optical system and signal processing unit inside the first and second laser displacement sensors capture the information of these reflected lights and calculate the distances from the first and second laser displacement sensors to the upper and lower surfaces of the foam plastic film through the display control host. Since the vertical distance between the two sensors has been accurately measured during installation, the thickness of the foam plastic film can be obtained through simple mathematical calculation and displayed on the display screen of the display control host, which effectively improves the detection accuracy.

[0021] (2) In this scheme, during the testing process, the lead screw is driven by the servo motor to rotate clockwise, thereby causing the guide frame to move downward with the guide hole set on the support frame, and then driving the enclosure to move downward synchronously to complete the shielding of the frame, avoiding the external airflow from affecting the foam plastic film and causing it to fluctuate, which can further improve the measurement accuracy of the film. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the outer structure of the frame of this utility model;

[0024] Figure 3 This is a schematic diagram of the inner structure of the frame of this utility model;

[0025] Figure 4 This is a schematic diagram of the platform structure of this utility model.

[0026] Explanation of the labels in the diagram:

[0027] 1. Frame; 2. Platform; 3. First laser displacement sensor; 4. Second laser displacement sensor; 5. Through hole; 6. Display and control host; 7. Alarm; 8. Support frame; 9. Guide hole; 10. Enclosure; 11. Guide frame; 12. Servo motor; 13. Bearing seat; 14. Lead screw. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] Example:

[0030] Please see Figure 1-4 A thickness detection device for foam plastic coating processing includes a frame 1 and a platform 2 fixedly connected to the inner side of the frame 1 and having a hollow structure inside. The top and bottom walls of the inner cavity of the frame 1 are respectively equipped with a first laser displacement sensor 3 and a second laser displacement sensor 4 that emits lasers at each other.

[0031] The top and bottom of the stage 2 are respectively provided with through holes 5 corresponding to the first laser displacement sensor 3 and the second laser displacement sensor 4;

[0032] The top of rack 1 is equipped with a display and control host 6;

[0033] The display control host 6 has a support frame 8 on one side, which is fixedly connected to the top edge of the frame 1. The side wall of the support frame 8 is symmetrically provided with longitudinally arranged guide holes 9. The outer side of the frame 1 is provided with a enclosure 10. The top of the enclosure 10 is fixedly connected to a guide frame 11 that is slidably connected to the guide holes 9. The top of the support frame 8 is equipped with a servo motor 12, and the power output end of the servo motor 12 is connected to a lead screw 14 that is screwed to the guide frame 11.

[0034] It should be noted that when using this foam plastic film coating thickness detection device, the foam plastic film to be detected is first placed inside the stage 2. Based on the laser triangulation method, specifically, non-contact measurement is achieved by installing a first laser displacement sensor 3 and a second laser displacement sensor 4 at the top and bottom of the frame 1, respectively. The upper second laser displacement sensor 4 emits a laser beam that passes vertically through the through hole 5 and is directed towards the upper surface of the foam plastic film. The laser beam is reflected by the upper surface and received by the second laser displacement sensor 4. Similarly, the lower first laser displacement sensor 3 emits a laser beam that is directed towards the lower surface of the foam plastic film, and the reflected light is also received by the first laser displacement sensor 3. The optical system and signal processing unit inside the first laser displacement sensor 3 and the second laser displacement sensor 4 capture the information of these reflected lights and calculate the distances from the first laser displacement sensor 3 and the second laser displacement sensor 4 to the upper and lower surfaces of the foam plastic film through the display control host 6. Since the vertical distance between the two sensors has been accurately measured during installation, the thickness of the foam plastic film can be obtained through simple mathematical calculation and displayed on the display screen of the display control host 6, effectively improving the detection accuracy.

[0035] During the testing process, the servo motor 12 drives the lead screw 14 to rotate clockwise, thereby causing the guide frame 11 to move downward in conjunction with the guide hole 9 set on the support frame 8, which in turn drives the enclosure 10 to move downward synchronously, thus shielding the frame 1 and preventing external airflow from affecting the foam plastic film and causing it to fluctuate, which can further improve the measurement accuracy of the film.

[0036] like Figure 2 As shown, an alarm 7 is installed on one side of the control host 6;

[0037] It should be noted that when the thickness of the plastic film is detected to be substandard, either too thick or too thin, alarm 7 will sound an alarm.

[0038] like Figure 1 As shown, a gap is provided between the outer side wall of the frame 1 and the inner side wall of the enclosure 10;

[0039] It should be noted that contact between the frame 1 and the enclosure 10 should be avoided to prevent wear.

[0040] like Figure 2 As shown, the power output shaft of the servo motor 12 passes through the top of the support frame 8, and the power output shaft of the servo motor 12 is connected to the top of the lead screw 14 through a coupling. The top of the frame 1 is fixedly connected to a bearing seat 13 that is interference-fitted to the bottom of the lead screw 14.

[0041] It should be noted that while ensuring the rotation accuracy of the lead screw 14, the power transmitted by the servo motor 12 can be normally transmitted to the lead screw 14.

[0042] Both the enclosure 10 and the frame 1 are made of aluminum alloy.

[0043] The output terminals of the first laser displacement sensor 3 and the second laser displacement sensor 4 are electrically connected to the input terminals of the display control host 6, and the output terminals of the display control host 6 are electrically connected to the input terminals of the alarm 7 and the servo motor 12, respectively.

[0044] In use: First, the foam plastic film to be tested is placed inside the stage 2. Based on the laser triangulation method, specifically, non-contact measurement is achieved by installing a first laser displacement sensor 3 and a second laser displacement sensor 4 at the top and bottom of the frame 1, respectively. The upper second laser displacement sensor 4 emits a laser beam that passes vertically through the through hole 5 and is directed towards the upper surface of the foam plastic film. The laser beam is reflected by the upper surface and received by the second laser displacement sensor 4. Similarly, the lower first laser displacement sensor 3 emits a laser beam that is directed towards the lower surface of the foam plastic film, and the reflected light is also received by the first laser displacement sensor 3. The optical system and signal processing unit inside the first laser displacement sensor 3 and the second laser displacement sensor 4 capture the information of these reflected lights and calculate the distances from the first laser displacement sensor 3 and the second laser displacement sensor 4 to the upper and lower surfaces of the foam plastic film through the display control host 6. Since the vertical distance between the two sensors has been accurately measured during installation, the thickness of the foam plastic film can be obtained through simple mathematical calculation and displayed on the display screen of the display control host 6.

[0045] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A thickness detection device for foam plastic coating processing, comprising a frame (1) and a platform (2) fixedly connected to the inner side of the frame (1) and having a hollow internal structure, characterized in that: The top and bottom walls of the inner cavity of the frame (1) are respectively equipped with a first laser displacement sensor (3) and a second laser displacement sensor (4) that emits lasers at each other. The top and bottom of the platform (2) are respectively provided with through holes (5) corresponding to the first laser displacement sensor (3) and the second laser displacement sensor (4); The top of the rack (1) is equipped with a display control host (6); The display control host (6) has a support frame (8) on one side, which is fixedly connected to the top edge of the frame (1). The side wall of the support frame (8) is symmetrically provided with longitudinally arranged guide holes (9). The outer side of the frame (1) is provided with a fence (10). The top of the fence (10) is fixedly connected with a guide frame (11) that is slidably connected to the guide hole (9). The top of the support frame (8) is equipped with a servo motor (12), and the power output end of the servo motor (12) is driven by a lead screw (14) that is screwed to the guide frame (11).

2. The thickness detection device for foam plastic coating processing according to claim 1, characterized in that: An alarm (7) is installed on one side of the display control host (6).

3. The thickness detection device for foam plastic coating processing according to claim 1, characterized in that: A gap is provided between the outer wall of the frame (1) and the inner wall of the enclosure (10).

4. The thickness detection device for foam plastic coating processing according to claim 1, characterized in that: The power output shaft of the servo motor (12) passes through the top of the support frame (8), and the power output shaft of the servo motor (12) is connected to the top of the lead screw (14) through a coupling.

5. The thickness detection device for foam plastic coating processing according to claim 1, characterized in that: The top of the frame (1) is fixedly connected to a bearing seat (13) that is interference-fitted to the bottom end of the lead screw (14).

6. The thickness detection device for foam plastic coating processing according to claim 1, characterized in that: Both the enclosure (10) and the frame (1) are made of aluminum alloy.

7. The thickness detection device for foam plastic coating processing according to claim 2, characterized in that: The output terminals of the first laser displacement sensor (3) and the second laser displacement sensor (4) are electrically connected to the input terminal of the display control host (6), and the output terminal of the display control host (6) is electrically connected to the input terminals of the alarm (7) and the servo motor (12), respectively.

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