A device for monitoring the shrinkage of a pvdc film

Abstract

This utility model discloses a PVDC film shrinkage rate monitoring device, including an oven, a temperature detection component disposed above the oven outlet, and a temperature display component electrically connected to the temperature detection component. The temperature detection component includes a center temperature sensor fixedly connected to the center of one side of the outer wall of the oven. Transverse slide rails are fixedly connected to both sides of the outer wall of the oven at the center temperature sensor. Transverse sliders are slidably connected to the transverse slide rails. Lateral temperature sensors are fixedly connected to the side of the outer wall of the transverse sliders away from the transverse slide rails. This utility model, through the cooperation of the oven, center temperature sensor, transverse slide rails, transverse sliders, lateral temperature sensors, and displacement drive component, effectively improves the coverage and representativeness of temperature detection in the oven outlet area, avoids deviations caused by single-point temperature measurement, thereby ensuring uniform film shrinkage rate distribution and significantly improving product quality stability.

Description

Technical Field

[0001] This utility model relates to the field of PVDC film production technology, specifically to a PVDC film shrinkage rate monitoring device. Background Technology

[0002] PVDC (polyvinylidene chloride) film has excellent barrier and moisture resistance properties and is widely used in the packaging of food, pharmaceuticals and cosmetics. In the production process of PVDC film, the film usually needs to be heated and cured in an oven to improve molecular orientation and stabilize dimensions. The surface temperature of the film when it comes out of the oven directly affects its shrinkage distribution and thickness uniformity, which is one of the important parameters that determine product quality.

[0003] Currently, the temperature of the film exiting the drying oven in the production line is mostly detected by manual intermittent temperature measurement or fixed single-point infrared temperature measurement. This method cannot reflect the temperature of the film in real time, and may also cause measurement errors due to different operators, which seriously affects the quality of the film and creates potential quality problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, such as the inability to reflect the temperature of the film in real time and the potential for measurement errors due to different operators, which seriously affect the quality of the film and create potential quality risks, this utility model provides a PVDC film shrinkage rate monitoring device.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: This utility model discloses a PVDC film shrinkage rate monitoring device, including an oven, a temperature detection component disposed above the oven outlet, and a temperature display component electrically connected to the temperature detection component. The temperature detection component includes a center temperature sensor fixedly connected to the center of one side of the outer wall of the oven. Transverse slide rails are fixedly connected to both sides of the outer wall of the oven located at the center temperature sensor. Transverse sliders are slidably connected to the transverse slide rails. Lateral temperature sensors are fixedly connected to the side of the outer wall of the transverse sliders away from the transverse slide rails. The outer wall of the oven is also provided with a displacement driving component for driving the lateral temperature sensors and the transverse sliders to move along the transverse slide rails. The temperature display assembly includes a temperature display that is electrically connected to both a center temperature sensor and a side temperature sensor.

[0006] As a preferred embodiment of this utility model, the displacement driving assembly includes a vertical slide rail fixedly connected above the center temperature sensor and a vertical slider slidably connected to the vertical slide rail. Both sides of the outer wall of the vertical slider are rotatably connected to connecting rods, and the ends of the connecting rods away from the vertical slider are rotatably connected to one side of the outer wall of the two horizontal sliders respectively.

[0007] As a preferred technical solution of this utility model, the outer wall of the oven is fixedly connected to the upper and lower sides of the vertical slide rail, and an adjusting threaded rod is rotatably connected between the two supporting plates. The vertical slider is provided with an adjusting threaded hole that matches the adjusting threaded rod, and the adjusting threaded rod is threadedly connected to the adjusting threaded hole.

[0008] As a preferred embodiment of this utility model, the top end of the adjusting threaded rod passes through the support plate and is fixedly connected to an adjusting handle.

[0009] As a preferred embodiment of this utility model, pointers are fixedly connected to the upper surfaces of both horizontal sliders, and scales that cooperate with the pointers are fixedly connected to the outer side of the oven wall near the pointers.

[0010] As a preferred embodiment of this utility model, the top of the temperature display is fixedly connected to a buzzer and an indicator light, both electrically connected to the center temperature sensor and the side temperature sensor.

[0011] In summary, this application has the following beneficial effects: 1. This application utilizes the combination of an oven, a center temperature sensor, a transverse slide rail, a transverse slider, lateral temperature sensors, and a displacement drive assembly. During use, by adjusting the displacement drive assembly, the transverse slider is moved along the transverse slide rail, thereby achieving symmetrical adjustment of the two lateral temperature sensors relative to the center temperature sensor. This allows for automatic or manual adjustment of the temperature measurement point spacing according to the different widths of PVDC films, enabling simultaneous multi-point temperature measurement of the film in the transverse direction. This effectively improves the coverage and representativeness of temperature detection in the oven exit area, avoids deviations caused by single-point temperature measurement, and ensures uniform film shrinkage distribution, significantly improving product quality stability. 2. By setting a pointer and a scale, this application allows operators to quickly determine the distance between the lateral temperature sensor and the central temperature sensor based on the pointer reading on the scale when adjusting the position of the lateral temperature sensor, and to intuitively display the current displacement of the lateral slider, thereby further improving the consistency and reliability of the thin film temperature monitoring results. 3. This application combines real-time temperature display with over-limit alarm by setting up a temperature display, buzzer, and indicator light. When the temperature detected by the center temperature sensor and the side temperature sensor exceeds the set range, the buzzer immediately sounds an alarm, and the indicator light simultaneously emits a light signal to remind the operator. This allows the operator to be aware of the abnormal state and make adjustments immediately, effectively preventing uneven shrinkage of the film due to excessively high or low temperatures, and significantly improving the safety of the oven temperature control process and the consistency of the film products. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of a PVDC film shrinkage rate monitoring device according to the present invention; Figure 2 This is a three-dimensional structural diagram of the temperature detection component of a PVDC film shrinkage monitoring device according to this utility model; Figure 3 This is a three-dimensional structural diagram of the vertical slider of a PVDC film shrinkage rate monitoring device according to this utility model; Figure 4 This is a schematic diagram of the temperature display component structure of a PVDC film shrinkage rate monitoring device according to this utility model.

[0013] Explanation of reference numerals in the attached figures: 1. Oven; 2. Temperature detection assembly; 21. Center temperature sensor; 22. Horizontal slide rail; 23. Horizontal slider; 24. Lateral temperature sensor; 25. Displacement drive assembly; 251. Vertical slide rail; 252. Vertical slider; 253. Connecting rod; 254. Support plate; 255. Adjusting threaded rod; 256. Adjusting threaded hole; 257. Adjusting handle; 26. Pointer; 27. Ruler; 3. Temperature display assembly; 31. Temperature display; 32. Buzzer; 33. Indicator light. Detailed Implementation

[0014] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0015] Example: Please refer to Figure 1 This utility model discloses a PVDC film shrinkage rate monitoring device, which includes an oven 1, a temperature detection component 2 disposed above the outlet of the oven 1, and a temperature display component 3 electrically connected to the temperature detection component 2.

[0016] Reference Figure 2 and Figure 3 The temperature detection component 2 includes a central temperature sensor 21 fixedly connected to the center of one side of the outer wall of the oven 1. Horizontal slide rails 22 are fixedly connected to both sides of the outer wall of the oven 1 on the central temperature sensor 21. Horizontal sliders 23 are slidably connected to the horizontal slide rails 22. Lateral temperature sensors 24 are fixedly connected to the side of the outer wall of the horizontal sliders 23 away from the horizontal slide rails 22. Pointers 26 are fixedly connected to the upper surfaces of the two horizontal sliders 23. A scale 27 that works in conjunction with the pointers 26 is fixedly connected to the side of the outer wall of the oven 1 closest to the pointers 26. The outer wall of the oven 1 is also equipped with a displacement drive assembly 25 for driving the lateral temperature sensor 24 and the transverse slider 23 to move along the transverse slide rail 22. The operator can drive the two transverse sliders 23 and the two lateral temperature sensors 24 to move along the transverse slide rail 22 through the displacement drive assembly 25, thereby moving the two lateral temperature sensors 24 to a position 10%±2% of the film width inward from the edge of the film according to the film width (the measured temperature can represent the temperature of the main body and avoid false low temperature caused by edge cooling as much as possible). The displacement drive assembly 25 includes a vertical slide rail 251 fixedly connected to the center temperature sensor 21 and a vertical slider 252 slidably connected to the vertical slide rail 251. Both sides of the outer wall of the vertical slider 252 are rotatably connected to connecting rods 253. The ends of the connecting rods 253 away from the vertical slider 252 are rotatably connected to one side of the outer wall of two horizontal sliders 23. When the vertical slider 252 rises along the vertical slide rail 251, it will pull the two horizontal sliders 23 to move synchronously along the horizontal slide rail 22 towards the center temperature sensor 21 through the connecting rods 253. When the vertical slider 252 falls along the vertical slide rail 251, it will push the two horizontal sliders 23 to move away from the center temperature sensor 21 along the horizontal slide rail 22 through the connecting rods 253. When adjusting the position of the lateral temperature sensor 24, the operator can quickly determine the distance between the lateral temperature sensor 24 and the center temperature sensor 21 based on the reading of the pointer 26 on the scale 27, and intuitively display the current displacement of the transverse slider 23, thereby further improving the consistency and reliability of the film temperature monitoring results. Support plates 254 are fixedly connected to both the upper and lower sides of the vertical slide rail 251 on the outer wall of the oven 1. An adjusting threaded rod 255 is rotatably connected between the two support plates 254. An adjusting threaded hole 256 adapted to the adjusting threaded rod 255 is opened on the vertical slider 252, and the adjusting threaded rod 255 is threaded to the adjusting threaded hole 256. The top end of the adjusting threaded rod 255 passes through the support plate 254 and is fixedly connected to an adjusting handle 257. The operator can rotate the adjusting threaded rod 255 through the adjusting handle 257, thereby driving the vertical slider 252 to move along the vertical slide rail 251.

[0017] Reference Figure 4The temperature display component 3 includes a temperature display 31 electrically connected to both the center temperature sensor 21 and the side temperature sensor 24. A buzzer 32 and an indicator light 33, both electrically connected to both the center temperature sensor 21 and the side temperature sensor 24, are fixedly connected to the top of the temperature display 31. The temperature display 31 can display the surface temperature of the PVDC film detected by the center temperature sensor 21 and the side temperature sensor 24. When the surface temperature of the PVDC film is normal, the buzzer 32 will sound an alarm when the surface temperature of the PVDC film is abnormal, and the indicator light 33 will flash to remind the staff.

[0018] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0019] The implementation principle of this utility model is as follows: When in use, the heated and cured PVDC film is discharged from the oven through the oven outlet. Before the PVDC film is discharged through the oven outlet, the operator turns the adjustment handle 257 to drive the adjustment threaded rod 255 to rotate, which in turn drives the vertical slider 252 to move along the vertical slide rail 251. When the vertical slider 252 rises along the vertical slide rail 251, it will pull the two horizontal sliders 23 along the horizontal slide rail 22 to move synchronously closer to the center temperature sensor 21 via the connecting rod 253. When the vertical slider 252 falls along the vertical slide rail 251, it will push the two horizontal sliders 23 along the horizontal slide rail 22 to move away from the center temperature sensor 21 via the connecting rod 253, thereby adjusting the position of the two lateral temperature sensors 24 to 10% ± 2% of the film width inward from the edge of the film (the measured temperature can represent the temperature of the main body and avoid false low temperature caused by edge cooling as much as possible). When adjusting the position of the lateral temperature sensor 24, the operator can quickly determine the distance between the lateral temperature sensor 24 and the center temperature sensor 21 based on the reading of the pointer 26 on the scale 27, and intuitively display the current displacement of the transverse slider 23, thereby further improving the consistency and reliability of the film temperature monitoring results. The temperature display 31 can display the PVDC membrane surface temperature detected by the center temperature sensor 21 and the side temperature sensor 24. When the PVDC membrane surface temperature is normal, the buzzer 32 will sound an alarm when the PVDC membrane surface temperature is abnormal, and the indicator light 33 will flash to remind the staff.

[0020] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A PVDC film shrinkage rate monitoring device, comprising an oven (1), a temperature detection component (2) disposed above the outlet of the oven (1), and a temperature display component (3) electrically connected to the temperature detection component (2), characterized in that: The temperature detection component (2) includes a center temperature sensor (21) fixedly connected to the center of one side of the outer wall of the oven (1). A transverse slide rail (22) is fixedly connected to both sides of the outer wall of the oven (1) located at the center temperature sensor (21). A transverse slider (23) is slidably connected to each of the transverse slide rails (22). A lateral temperature sensor (24) is fixedly connected to the side of the outer wall of the lateral slider (23) away from the transverse slide rail (22). The outer wall of the oven (1) is also provided with a displacement driving component (25) for driving the lateral temperature sensor (24) and the transverse slider (23) to move along the transverse slide rail (22). The temperature display assembly (3) includes a temperature display (31) electrically connected to both the center temperature sensor (21) and the side temperature sensor (24).

2. The PVDC film shrinkage monitoring device according to claim 1, characterized in that: The displacement drive assembly (25) includes a vertical slide rail (251) fixedly connected above the center temperature sensor (21) and a vertical slider (252) slidably connected to the vertical slide rail (251). Both sides of the outer wall of the vertical slider (252) are rotatably connected to connecting rods (253). The end of the connecting rod (253) away from the vertical slider (252) is rotatably connected to one side of the outer wall of the two horizontal sliders (23).

3. The PVDC film shrinkage monitoring device according to claim 2, characterized in that: The outer wall of the oven (1) is fixedly connected to the upper and lower sides of the vertical slide rail (251) with support plates (254). An adjusting threaded rod (255) is rotatably connected between the two support plates (254). An adjusting threaded hole (256) adapted to the adjusting threaded rod (255) is opened on the vertical slider (252), and the adjusting threaded rod (255) is threaded to the adjusting threaded hole (256).

4. The PVDC film shrinkage monitoring device according to claim 3, characterized in that: The top end of the adjusting threaded rod (255) passes through the support plate (254) and is fixedly connected to the adjusting handle (257).

5. The PVDC film shrinkage monitoring device according to claim 4, characterized in that: The upper surfaces of the two horizontal sliders (23) are fixedly connected with pointers (26), and the outer side wall of the oven (1) near the pointers (26) is fixedly connected with a scale (27) that works with the pointers (26).

6. The PVDC film shrinkage monitoring device according to claim 5, characterized in that: The top of the temperature display (31) is fixedly connected to a buzzer (32) and an indicator light (33) that are electrically connected to the center temperature sensor (21) and the side temperature sensor (24).

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