An anti-curling apparatus for producing a front and back surface film

Abstract

This utility model provides an anti-curling device for producing front and back face masks, relating to the field of anti-curling technology in face mask production. The utility model includes a base with four mounting holes on its surface. A control equipment box is fixedly mounted on the surface of the base. An anti-curling device is provided on the surface of the base, comprising an L-shaped bracket fixedly mounted on the surface of the base. A cylinder is fixedly mounted on the bottom surface of the top horizontal end of the L-shaped bracket, and a first U-shaped frame is fixedly mounted on the output end of the cylinder. This utility model can adapt to the production of front and back face masks of different types and specifications. The heater and fan can preheat and cool the edges of the face mask. Finally, in conjunction with the pressure roller, it can effectively prevent the face mask from curling, ensuring the flatness of the face mask edges.

Description

Technical Field

[0001] This utility model relates to the field of anti-rolling technology in mask production, and in particular to an anti-rolling device for producing front and back masks. Background Technology

[0002] In the facial mask manufacturing industry, double-sided masks are highly favored because they have different effects on both sides, which can meet the diverse skin care needs of consumers.

[0003] During the production of front and back face masks, the edges of the masks are prone to curling. In existing technologies, some anti-curling methods involve manual smoothing, which is inefficient and the pressure applied manually is difficult to standardize, resulting in inconsistent anti-curling effects. Some equipment uses simple pressure rollers for pressing, but because it cannot adapt to changes in mask material and thickness, it is not only difficult to effectively prevent curling for soft and thin front and back face masks, but may also cause wrinkles and damage to the mask surface due to uneven pressure, affecting the quality of the mask and production efficiency. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned above in the background art by proposing an anti-rolling device for producing front and back films.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an anti-rolling device for producing front and back face masks, comprising a base, four mounting holes on the surface of the base, a control equipment box fixedly mounted on the surface of the base, an anti-rolling device on the surface of the base, the anti-rolling device comprising an L-shaped bracket fixedly mounted on the surface of the base, a cylinder fixedly mounted on the bottom surface of the top horizontal end of the L-shaped bracket, a first U-shaped frame fixedly mounted on the output end of the cylinder, a slide rod fixedly mounted between the inner walls of the two ends of the first U-shaped frame, two sliders slidably connected to the outer wall surface of the slide rod, a spring fixedly mounted between the two sliders, the spring being used to provide a pressure compensation of 0.2 to 0.5 N when the thickness of the face mask fluctuates, a hinge plate hinged to the bottom surface of each of the two sliders, a second U-shaped frame hinged to the end of the hinge plate away from the slider, a rotating shaft rotatably connected between the inner walls of the two sides of the second U-shaped frame, and a pressure roller fixedly mounted on the outer wall surface of the rotating shaft.

[0006] Preferably, a material sensor and a thickness sensor are fixedly installed on the bottom surface of the outer walls on both sides of the second U-shaped frame, respectively.

[0007] Preferably, a heater is fixedly installed between the inner walls of the two sides of the second U-shaped frame, and multiple motors are evenly fixedly installed on the bottom surface of the horizontal end of the second U-shaped frame, with fans fixedly installed at the output ends of the multiple motors via couplings.

[0008] Preferably, the motor, cylinder, heater, material sensor, and thickness sensor are all electrically connected to the PLC controller in the control equipment box via RVVP 4×0.75mm² shielded cable.

[0009] Preferably, the sliding connection between the slide rod and the slider is a clearance fit, and when the spring is in its natural state, the distance between the two sliders is the original length of the spring.

[0010] Preferably, the heater is a ceramic heating plate and the fan is an axial flow fan.

[0011] Preferably, mounting grooves are respectively provided on the bottom surface of the outer walls on both sides of the second U-shaped frame. The material sensor and the thickness sensor are respectively embedded in the mounting grooves and fixedly connected to the second U-shaped frame by screws. The detection ends of both sensors protrude from the outer wall surface of the second U-shaped frame and face the direction of mask conveying.

[0012] Preferably, the two ends of the rotating shaft are respectively interference-fitted with the bearing seats on the inner walls of the two sides of the second U-shaped frame, and the outer wall surface of the pressure roller is bonded with a silicone buffer layer by adhesive.

[0013] The effects achieved by the above components are as follows: real-time parameter acquisition using thickness and material sensors, automatic pressure adjustment using cylinder and spring mechanism to adapt to different material masks, preheating temperature with heater, cooling with fan to reduce the brittleness of mask edges, and reduction of mask breakage rate by silicone pressure roller.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] In this invention, by setting an anti-rolling device, the thickness sensor and material sensor can obtain information such as the material and thickness of the mask in real time, enabling the equipment to adapt to the production of different types and specifications of front and back masks. The heater and fan can preheat and cool the edge of the mask. Finally, in conjunction with the pressure roller, it can effectively prevent the mask from rolling up and ensure the flatness of the mask edge. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This utility model Figure 1 Another structural diagram from another angle.

[0018] Figure 3 This is a partial structural diagram of the anti-rolling device of this utility model.

[0019] Figure 4 This is a schematic diagram of the control flow structure of this utility model.

[0020] Legend: 1. Base; 2. Anti-rolling device; 201. L-shaped bracket; 202. Cylinder; 203. First U-shaped frame; 204. Slide rod; 205. Slider; 206. Spring; 207. Hinge plate; 208. Second U-shaped frame; 209. Rotating shaft; 210. Pressure roller; 211. Heater; 212. Motor; 213. Fan; 214. Material sensor; 215. Thickness sensor; 3. Mounting hole; 4. Control equipment box. Detailed Implementation

[0021] Example 1, such as Figure 1-4 As shown, an anti-rolling device for producing front and back face films includes a base 1, four mounting holes 3 are opened on the surface of the base 1, and a control equipment box 4 is fixedly installed on the surface of the base 1.

[0022] Reference Figure 1-4As shown in this embodiment: the surface of the base 1 is provided with an anti-rolling device 2. The anti-rolling device 2 includes an L-shaped bracket 201 fixedly installed on the surface of the base 1. A cylinder 202 is fixedly installed on the bottom surface of the top horizontal end of the L-shaped bracket 201. A first U-shaped frame 203 is fixedly installed at the output end of the cylinder 202. A slide rod 204 is fixedly installed between the inner walls of the two ends of the first U-shaped frame 203. Two sliders 205 are slidably connected to the outer wall surface of the slide rod 204. A spring 206 is fixedly installed between the two sliders 205. The spring 206 is used to provide a pressure compensation of 0.2 to 0.5 N when the mask thickness fluctuates. A hinge plate 207 is hinged to the bottom surface of each of the two sliders 205. The hinge plate 207 is away from the slider. One end of 205 is hinged to a second U-shaped frame 208. A rotating shaft 209 is rotatably connected between the inner walls of the two sides of the second U-shaped frame 208. A pressure roller 210 is fixedly installed on the outer surface of the rotating shaft 209. A material sensor 214 and a thickness sensor 215 are fixedly installed on the bottom surfaces of the outer walls of the two sides of the second U-shaped frame 208, respectively. A heater 211 is fixedly installed between the inner walls of the two sides of the second U-shaped frame 208. Multiple motors 212 are evenly fixedly installed on the bottom surface of the horizontal end of the second U-shaped frame 208. A fan 213 is fixedly installed at the output end of each of the multiple motors 212 through a coupling. The motors 212, cylinders 202, heaters 211, material sensors 214, and thickness sensors 215 are all connected via RVVP 4×0.The 75mm² shielded cable is electrically connected to the PLC controller (model FX3U-32MT / ES-A) inside the control equipment box 4. The sliding connection between the slide bar 204 and the slider 205 is a clearance fit. When the spring 206 is in its natural state, the distance between the two sliders 205 is the original length of the spring 206. The heater 211 is a ceramic heating plate, and the fan 213 is an axial flow fan. The bottom surfaces of the outer walls on both sides of the second U-shaped frame 208 are respectively provided with mounting grooves. The material sensor 214 and the thickness sensor 215 are respectively embedded in the mounting grooves and fixedly connected to the second U-shaped frame 208 by screws. The detection ends of both sensors protrude from the outer wall surface of the second U-shaped frame 208 and face the direction of the film conveying. The two ends of the rotating shaft 209 are respectively connected to the second U-shaped frame 208. The bearing seats on both inner walls of the frame 208 are interference-fitted. A silicone buffer layer is glued to the outer surface of the pressure roller 210. The spring 206 has dimensions of Φ6×30×0.8mm and an elastic modulus of 25 N / m. The pressure roller 210 is covered with a 3mm thick silicone layer with a Shore A hardness of 60A. The cylinder 202 is model SC63×50 with a stroke accuracy of ±0.5mm. The material sensor 214 is model IR200, using infrared spectroscopy with a detection wavelength range of 2 to 16 μm. The thickness sensor 215 is model LDM41, with a laser ranging accuracy of ±0.05mm. The heater 211 is model HST-200 with a heating power of 500W, covering a 10mm area below the pressure roller 210. Multiple motors 212 are model 42BYGH34-401A. The fan 213 has an airflow of 15 CFM.

[0023] Working principle: First, use the mounting holes 3 on the base 1 to install the base 1 at a suitable position next to the mask conveying equipment, ensuring that the axis of the pressure roller (210) is perpendicular to the mask conveying direction with a deviation ≤1. Then, connect the power cord and sensor signal line of the control equipment box 4, calibrating the material sensor 214 to detect at a height 10mm above the mask and the thickness sensor 215 to detect at a distance of 50mm. Next, start the conveying equipment to convey the mask. When the mask moves to below the second U-shaped frame 208, the material sensor 214 uses infrared spectroscopy to quickly and accurately identify the mask's material type, and the thickness sensor 215, based on laser ranging, measures the mask's thickness in real time. The acquired data is then transmitted in real time to the PLC inside the control equipment box 4. Based on a preset database, such as a material and pressure mapping table, the extension and retraction of cylinder 202 is calculated. For a silk mask with a thickness of 0.15mm, cylinder 202 outputs 0.8N / cm² pressure, and spring 206 initially compresses 5mm. For a cotton mask with a thickness of 0.25mm, cylinder 202 outputs 1.2N / cm² pressure, and spring 206 initially compresses 8mm. Then, cylinder 202 is activated, causing the first U-shaped frame 203 to move downwards. The first U-shaped frame 203 then moves upwards, ultimately causing the second U-shaped frame 208 to move downwards. The downward movement of the second U-shaped frame 208 causes the pressure roller 210 to adhere to the edge of the mask. Simultaneously, during the mask's transport, the pressure roller 210 is subjected to force, which in turn causes the second U-shaped frame 208 to move upwards. This upward movement of the second U-shaped frame 208 causes the hinge plate 207 to move, pushing the two sliders 205 across the surface of the slide rod 204. As the two sliders 205 move away from each other on the surface of the slide bar 204, the spring 206 is stretched. At this time, the rebound force of the spring 206 keeps the pressure roller 210 in contact with the mask surface, maintaining constant pressure, ensuring the anti-curling effect and not damaging the mask. At the same time, the control system inside the control equipment box 4 sets the heating temperature of the heater 211 according to the material and thickness of the mask. The heater 211 starts working to preheat the edge of the mask, reducing the brittleness of the mask edge and making it easier to flatten. The temperature sensor monitors the temperature of the heating plate and the mask surface in real time and feeds the data back to the control system. When the temperature reaches the set value, the control motor 212 starts, which drives the fan 213 to rotate. The fan 213 rotates to quickly cool and shape the edge of the mask, preventing the edge of the mask from curling again. Through the cooperation of the above structures, the device can achieve efficient anti-curling treatment of the mask until the mask production is completed.

[0024] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A kind of anti-curling equipment of producing front and back film, including base (1), four mounting holes (3) are opened in the surface of base (1), control equipment box (4) is fixedly installed in the surface of base (1), it is characterized by: The base (1) is provided with an anti-rolling device (2). The anti-rolling device (2) includes an L-shaped bracket (201) fixedly installed on the surface of the base (1). A cylinder (202) is fixedly installed on the bottom surface of the top horizontal end of the L-shaped bracket (201). A first U-shaped frame (203) is fixedly installed on the output end of the cylinder (202). A slide rod (204) is fixedly installed between the inner walls of the two ends of the first U-shaped frame (203). The outer wall surface of the slide rod (204) is... The sliding connection has two sliders (205), and a spring (206) is fixedly installed between the two sliders (205). The bottom surfaces of the two sliders (205) are hinged with hinge plates (207). A second U-shaped frame (208) is hinged to the end of the hinge plate (207) away from the slider (205). A rotating shaft (209) is rotatably connected between the inner walls of the two sides of the second U-shaped frame (208). A pressure roller (210) is fixedly installed on the outer wall surface of the rotating shaft (209).

2. The anti-rolling device for producing front and back face films according to claim 1, characterized in that: Material sensors (214) and thickness sensors (215) are fixedly installed on the bottom surfaces of the outer walls on both sides of the second U-shaped frame (208).

3. The anti-curling equipment for producing front and back face films according to claim 1, characterized in that: A heater (211) is fixedly installed between the inner walls of the two sides of the second U-shaped frame (208). Multiple motors (212) are evenly fixedly installed on the bottom surface of the horizontal end of the second U-shaped frame (208). The output ends of the multiple motors (212) are all fixedly installed with fans (213) through couplings.

4. The anti-curling equipment for producing front and back face films according to claim 3, characterized in that: The motor (212), cylinder (202), heater (211), material sensor (214) and thickness sensor (215) are all electrically connected to the PLC controller in the control equipment box (4).

5. The anti-curling equipment for producing front and back films according to claim 1, characterized in that: The sliding connection between the slide rod (204) and the slider (205) is a clearance fit. When the spring (206) is in its natural state, the distance between the two sliders (205) is the original length of the spring (206).

6. The anti-rolling device for producing front and back films according to claim 3, characterized in that: The heater (211) is a ceramic heating plate, and the fan (213) is an axial flow fan.

7. The anti-rolling device for producing front and back films according to claim 4, characterized in that: The bottom surfaces of the outer walls on both sides of the second U-shaped frame (208) are respectively provided with mounting grooves. The material sensor (214) and the thickness sensor (215) are respectively embedded in the mounting grooves and fixedly connected to the second U-shaped frame (208) by screws. The detection ends of both protrude from the outer wall surface of the second U-shaped frame (208) and face the direction of mask conveying.

8. The anti-rolling device for producing front and back face films according to claim 1, characterized in that: The two ends of the rotating shaft (209) are respectively interference-fitted with the bearing seats on the inner walls of the two sides of the second U-shaped frame (208), and the outer wall surface of the pressure roller (210) is bonded with a silicone buffer layer by glue.

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