Pressure detection device for sheet film plastic
By combining the motor and electric push rod of the support, positioning, and detection mechanism, the problem of inconvenient positioning caused by the thinness of the sheet-like plastic film is solved, and efficient pressure detection is achieved.
Patent Information
- Application Number
- CN202511532866.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-24
- Publication Date
- 2026-01-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In existing technologies, the sheet-like plastic film is relatively thin, which makes positioning difficult during pressure testing and affects testing efficiency.
The system employs a support, positioning, and detection mechanism, and utilizes a motor and an electric push rod to achieve automatic positioning and pressure detection of the plastic film.
This improves the pressure detection efficiency of sheet-like plastic films, ensuring that the film can be stably fixed at the detection position, thus achieving efficient pressure detection.
Smart Images
Figure CN121324104A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of pressure detection technology, and more particularly to a pressure detection device for sheet-like plastic films. Background Technology
[0002] Sheet molding compound is a sheet-shaped molding composite material made by impregnating short fibers or fiber mats with resin paste and covering the surface with a polyethylene film. Before the production of sheet molding compound, the plastic film made from the composite material needs to be pressure tested in order to determine the pressure value that the plastic film can withstand, thereby facilitating the practical application of the plastic film.
[0003] Currently, when using pressure testing devices to test plastic films in existing technologies, the thinness of the plastic film and the need to position the film during pressure testing make positioning inconvenient and affect the efficiency of plastic film testing. Therefore, this invention proposes a pressure testing device for sheet-like plastic films. Summary of the Invention
[0004] The purpose of this invention is to solve the shortcomings of the prior art, which is that the plastic film is thin and needs to be positioned during pressure testing, which makes it inconvenient to position the plastic film and thus affects the testing efficiency of the plastic film.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pressure detection device for sheet-like plastic film, comprising a support mechanism, a positioning mechanism mounted on the support mechanism, and a detection mechanism mounted on the positioning mechanism; the support mechanism includes an L-shaped bracket, the upper surface of the L-shaped bracket having a through hole, two slide rails fixedly connected to the outer wall of the L-shaped bracket, an L-shaped slider slidably mounted in the two slide rails, and a spring rod fixedly connected to the lower surface of the L-shaped slider.
[0006] In at least some embodiments, the spring top rod is fixed to the inner wall of the slide rail, two crossbars are fixed to the upper surface of the L-shaped slider, a lower support plate is fixed to the upper surface of the crossbars, and the lower support plate is located in the through hole of the L-shaped bracket.
[0007] In at least some embodiments, the positioning mechanism includes a connecting sheet metal, which is fixedly connected to the outer wall of the L-shaped bracket. Limiting grooves are provided at the middle edges of both sides of the connecting sheet metal. A rotating shaft is rotatably installed inside the connecting sheet metal, and fixed brackets are fixedly connected to both ends of the rotating shaft.
[0008] In at least some embodiments, limiting rods are fixedly connected to both sides of the fixed bracket, the limiting rods are located in the limiting groove, an assembly rod is fixedly connected to the upper end of the fixed bracket, the assembly rod is located above the L-shaped bracket, and driven gears are also fixedly connected to both ends of the rotating shaft, the driven gears are located inside the assembly rod.
[0009] In at least some embodiments, a toothed plate is meshed with one side of the driven gear, a movable plate is fixedly connected to one side of the toothed plate, the movable plate is slidably installed in the connecting sheet metal, and a first electric push rod is fixedly connected to the upper surface of the movable plate, the first electric push rod being fixedly connected to the outer wall of the movable plate.
[0010] In at least some embodiments, the detection mechanism includes a clamping plate located below the assembly rod. Adjusting screws are rotatably mounted at the four corners of the upper surface of the clamping plate, and one side of the adjusting screw is threadedly connected to the assembly rod.
[0011] In at least some embodiments, a detection hole is provided in the middle of the clamping plate, a connecting bracket is fixedly connected to the upper surface of the clamping plate, the connecting bracket is located outside the detection hole, a second electric push rod is fixedly connected to the upper surface of the connecting bracket, a pressure block is fixedly connected to the output shaft of the second electric push rod, and the pressure block is located inside the detection hole.
[0012] In at least some embodiments, a mounting plate is fixedly connected to one end of the outer wall of the assembly rod, a second motor is fixedly connected to one side of the mounting plate, a drive screw is fixedly connected to the output shaft of the second motor, a movable block is engaged with the drive screw, and the movable block is located on both sides of the assembly rod.
[0013] In at least some embodiments, a mounting bracket is fixedly connected to the lower surface of the movable block, a No. 3 motor is fixedly connected to one side of the lower end of the mounting bracket, and a drive wheel is fixedly connected to the output shaft of the No. 3 motor, with the drive wheel located above the L-shaped bracket.
[0014] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. In this invention, starting motors 2 and 3 can drive the movable block to move horizontally along the drive screw. Motor 3 drives the drive wheel to rotate, which can move the plastic film above the L-shaped bracket, thus realizing the feeding of the plastic film.
[0015] 2. In this invention, starting the first electric push rod pushes the movable plate up and down along the connecting sheet metal. Then, the movable plate engages with the driven gear through the toothed plate on its surface, which drives the rotating shaft to rotate. The rotating shaft can then move the fixed bracket and the assembly rod to the top of the L-shaped bracket. Rotating the adjusting screw can drive the adjusting screw to move up and down along the assembly rod. The assembly rod can then move the pressing plate to the top of the L-shaped bracket, thus fixing the film on the upper surface of the L-shaped bracket.
[0016] 3. In this invention, the electric push rod is activated to drive the pressure block to rise and fall. The pressure block applies pressure to the film and then contacts the lower support plate to realize the pressure detection of the film. At the same time, the spring push rod pushes the L-shaped slider to move along the slide rail to its upper end. The L-shaped slider drives the lower support plate to move into the through hole of the L-shaped bracket through the crossbar. Attached Figure Description
[0017] Figure 1 A schematic perspective view of one side structure of a pressure detection device for sheet-like plastic film is provided for this invention. Figure 2 A schematic perspective view of the other side of the overall structure of a pressure detection device for sheet-like plastic film is provided for this invention; Figure 3 This invention provides a schematic perspective view of one side of the positioning mechanism of a pressure detection device for sheet-like plastic films. Figure 4 This invention provides a schematic perspective view of the other side of the positioning mechanism of a pressure detection device for sheet-like plastic films. Figure 5 This invention provides a schematic perspective view of a combined positioning mechanism and detection mechanism for a pressure detection device for sheet-like plastic films. Figure 6 This invention provides a schematic perspective view of the overall structure of a positioning mechanism for a pressure detection device for sheet-like plastic films. Figure 7 This invention presents a schematic perspective view of the overall structure of a pressure testing device for sheet-like plastic films.
[0018] Legend: 100, Support mechanism; 200, Positioning mechanism; 300, Detection mechanism; 101, L-shaped bracket; 102, Slide rail; 103, Spring push rod; 104, L-shaped slider; 105, Lower support plate; 106, Crossbar; 201, Connecting sheet metal; 202, Rotating shaft; 203, Movable plate; 204, Driven gear; 205, Gear plate; 206, Limiting groove; 207, Limiting rod; 2 08. Fixed bracket; 209. Assembly rod; 210. Electric push rod No. 1; 301. Pressure plate; 302. Adjusting screw; 303. Inspection hole; 304. Connecting bracket; 305. Pressure block; 306. Electric push rod No. 2; 307. Mounting plate; 308. Motor No. 2; 309. Movable block; 310. Drive screw; 311. Mounting bracket; 312. Motor No. 3; 313. Drive wheel. Detailed Implementation
[0019] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0020] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.
[0021] In the prior art, sheet molding compound is a sheet-shaped molding composite material made by impregnating chopped fibers or fiber mats with resin paste and covering the surface with a polyethylene film. Before the production of sheet molding compound, the plastic film made from the composite material needs to be pressure tested to determine the pressure value that the plastic film can withstand, thereby facilitating the practical application of the plastic film. However, when using a pressure testing device to test the plastic film, the thinness of the plastic film and the need to position the film during pressure testing make positioning the plastic film inconvenient, thus affecting the efficiency of the plastic film testing.
[0022] Therefore, the present invention aims at least in that, by activating the detection mechanism 300, the plastic film can be moved above the L-shaped bracket 101 to load the plastic film, and then the positioning mechanism 200 is activated to move the fixing bracket 208 and the assembly rod 209 above the L-shaped bracket 101. With the cooperation of the detection mechanism 300, the film can be fixed on the upper surface of the L-shaped bracket 101. Subsequently, the lower support plate 105 is driven to cooperate with the support mechanism 100 to realize the pressure detection of the film.
[0023] Implementation examples, based on Figures 1-7 This invention provides a pressure detection device for sheet-like plastic films, comprising a support mechanism 100, a positioning mechanism 200 mounted on the support mechanism 100, and a detection mechanism 300 mounted on the positioning mechanism 200; as shown... Figures 3-4 As shown, the support mechanism 100 includes an L-shaped bracket 101. The upper surface of the L-shaped bracket 101 has a through hole. Two slide rails 102 are fixedly connected to the outer wall of the L-shaped bracket 101. An L-shaped slider 104 is slidably installed in the two slide rails 102. A spring push rod 103 is fixedly connected to the lower surface of the L-shaped slider 104.
[0024] like Figures 3-4 As shown, the spring push rod 103 is fixed to the inner wall of the slide rail 102. Two crossbars 106 are fixed to the upper surface of the L-shaped slider 104. A lower support plate 105 is fixed to the upper surface of the crossbars 106. The lower support plate 105 is located in the through hole of the L-shaped bracket 101. The spring push rod 103 pushes the L-shaped slider 104 to move along the slide rail 102 to its upper end. The L-shaped slider 104 drives the lower support plate 105 to move into the through hole of the L-shaped bracket 101 through the crossbars 106.
[0025] like Figure 6As shown, the positioning mechanism 200 includes a connecting sheet metal 201, which is fixedly connected to the outer wall of the L-shaped bracket 101. Limiting grooves 206 are formed at the middle edges of both sides of the connecting sheet metal 201. A rotating shaft 202 is rotatably mounted inside the connecting sheet metal 201. Fixed brackets 208 are fixedly connected to both ends of the rotating shaft 202. Limiting rods 207 are fixedly connected to both sides of the fixed brackets 208, and the limiting rods 207 are located within the limiting grooves 206. An assembly rod 209 is fixedly connected to the upper end of the fixed brackets 208, and the assembly rod 209 is located above the L-shaped bracket 101. Driven gears 204 are also fixedly connected to both ends of the rotating shaft 202, and the driven gears 204 are located within the assembly rods 206. Inside the rod 209, a toothed plate 205 is meshed with one side of the driven gear 204. A movable plate 203 is fixedly connected to one side of the toothed plate 205. The movable plate 203 is slidably installed inside the connecting sheet metal 201. An electric push rod 210 is fixedly connected to the upper surface of the movable plate 203. The electric push rod 210 is fixed to the outer wall of the movable plate 203. When the electric push rod 210 is activated, the movable plate 203 is pushed up and down along the connecting sheet metal 201. Then, the movable plate 203 meshes with the driven gear 204 through the toothed plate 205 on its surface, which drives the rotating shaft 202 to rotate. The rotating shaft 202 can then drive the fixed bracket 208 and the mounting rod 209 to move above the L-shaped bracket 101.
[0026] like Figure 7As shown, the detection mechanism 300 includes a clamping plate 301 located below the assembly rod 209. Adjusting screws 302 are rotatably mounted at the four corners of the upper surface of the clamping plate 301. One side of the adjusting screw 302 is threadedly connected to the assembly rod 209. A detection hole 303 is formed in the middle of the clamping plate 301. A connecting bracket 304 is fixedly connected to the upper surface of the clamping plate 301, located outside the detection hole 303. A second electric push rod 306 is fixedly connected to the upper surface of the connecting bracket 304. A pressure block 305 is fixedly connected to the output shaft of the second electric push rod 306. 305 is located inside the detection hole 303. A mounting plate 307 is fixedly connected to one end of the outer wall of the assembly rod 209. A second motor 308 is fixedly connected to one side of the mounting plate 307. A drive screw 310 is fixedly connected to the output shaft of the second motor 308. The drive screw 310 is engaged with a movable block 309, which is located on both sides of the assembly rod 209. A mounting bracket 311 is fixedly connected to the lower surface of the movable block 309. A third motor 312 is fixedly connected to one side of the lower end of the mounting bracket 311. A drive wheel 313 is fixedly connected to the output shaft of the third motor 312, and the drive wheel 313 is located above the L-shaped bracket 101. When the assembly rod 209 moves above the L-shaped bracket 101, rotating the adjusting screw 302 will cause the adjusting screw 302 to rise and fall along the assembly rod 209. The assembly rod 209 can then move the pressure plate 301 above the L-shaped bracket 101, thus fixing the film above the L-shaped bracket 101. Subsequently, the electric push rod 306 is activated to drive the pressure block 305 to rise and fall. The pressure block 305 applies pressure to the film and then contacts the lower support plate 105 to detect the pressure of the film. At the same time, the second motor 308 and the third motor 312 are activated to drive the movable block 309 to move horizontally along the drive screw 310. The third motor 312 drives the drive wheel 313 to rotate, which can move the plastic film above the L-shaped bracket 101, thus feeding the plastic film.
[0027] The working principle of this invention is as follows: First, starting motor 2 (308) and motor 3 (312) will drive the movable block 309 to move horizontally along the drive screw 310. Motor 3 (312) will drive the drive wheel 313 to rotate, which will move the plastic film above the L-shaped bracket 101, thus loading the plastic film. Then, starting electric push rod 210 will push the movable plate 203 to rise and fall along the connecting sheet metal 201. Subsequently, the movable plate 203 will engage with the driven gear 204 through the toothed plate 205 on its surface, which will drive the rotating shaft 202 to rotate. The rotating shaft 202 will then drive the fixed bracket 208 and the assembly rod 209 to move to the L-shaped bracket 101. Above 01, rotating the adjusting screw 302 will cause the adjusting screw 302 to rise and fall along the assembly rod 209. The assembly rod 209 can move the pressure plate 301 to the top of the L-shaped bracket 101, so as to fix the film on the upper surface of the L-shaped bracket 101. The electric push rod 306 is activated to drive the pressure block 305 to rise and fall. The pressure block 305 applies pressure to the film and then contacts the lower support plate 105 to realize the pressure detection of the film. At the same time, the spring push rod 103 pushes the L-shaped slider 104 to move along the slide rail 102 to its upper end. The L-shaped slider 104 drives the lower support plate 105 to move into the through hole of the L-shaped bracket 10 through the cross rod 106.
[0028] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.
Claims
1. A pressure detection device for sheet-like plastic films, comprising a support mechanism (100), characterized in that: A positioning mechanism (200) is installed on the support mechanism (100), and a detection mechanism (300) is installed on the positioning mechanism (200). The support mechanism (100) includes an L-shaped bracket (101), the upper surface of which has a through hole, and two slide rails (102) are fixedly connected to the outer wall of the L-shaped bracket (101). An L-shaped slider (104) is slidably installed in the two slide rails (102), and a spring push rod (103) is fixedly connected to the lower surface of the L-shaped slider (104).
2. The pressure detection device for sheet-like plastic films according to claim 1, characterized in that: The spring top rod (103) is fixed to the inner wall of the slide rail (102). Two crossbars (106) are fixed to the upper surface of the L-shaped slider (104). A lower support plate (105) is fixed to the upper surface of the crossbars (106). The lower support plate (105) is located in the through hole of the L-shaped bracket (101).
3. The pressure detection device for sheet-like plastic films according to claim 1, characterized in that: The positioning mechanism (200) includes a connecting sheet metal (201), which is fixed to the outer wall of the L-shaped bracket (101). Limiting grooves (206) are provided at the middle edges on both sides of the connecting sheet metal (201). A rotating shaft (202) is rotatably installed inside the connecting sheet metal (201), and fixed brackets (208) are fixed at both ends of the rotating shaft (202).
4. The pressure detection device for sheet-like plastic film according to claim 3, characterized in that: Limiting rods (207) are fixedly connected to both sides of the fixed bracket (208). The limiting rods (207) are located in the limiting groove (206). An assembly rod (209) is fixedly connected to the upper end of the fixed bracket (208). The assembly rod (209) is located above the L-shaped bracket (101). Driven gears (204) are also fixedly connected to both ends of the rotating shaft (202). The driven gears (204) are located inside the assembly rod (209).
5. A pressure detection device for sheet-like plastic films according to claim 4, characterized in that: A toothed plate (205) is meshed with one side of the driven gear (204), and a movable plate (203) is fixedly connected to one side of the toothed plate (205). The movable plate (203) is slidably installed in the connecting sheet metal (201). A first electric push rod (210) is fixedly connected to the upper surface of the movable plate (203), and the first electric push rod (210) is fixedly connected to the outer wall of the movable plate (203).
6. A pressure detection device for sheet-like plastic films according to claim 1, characterized in that: The testing mechanism (300) includes a pressure plate (301) located below the assembly rod (209). Adjusting screws (302) are rotatably installed at the four corners of the upper surface of the pressure plate (301). One side of the adjusting screw (302) is connected to the assembly rod (209) by thread engagement.
7. A pressure detection device for sheet-like plastic films according to claim 6, characterized in that: The clamping plate (301) has a detection hole (303) in the middle. A connecting bracket (304) is fixedly connected to the upper surface of the clamping plate (301). The connecting bracket (304) is located outside the detection hole (303). A second electric push rod (306) is fixedly connected to the upper surface of the connecting bracket (304). A pressure block (305) is fixedly connected to the output shaft of the second electric push rod (306). The pressure block (305) is located inside the detection hole (303).
8. A pressure detection device for sheet-like plastic films according to claim 7, characterized in that: An mounting plate (307) is fixedly connected to one end of the outer wall of the assembly rod (209). A second motor (308) is fixedly connected to one side of the mounting plate (307). A drive screw (310) is fixedly connected to the output shaft of the second motor (308). A movable block (309) is engaged with the drive screw (310). The movable block (309) is located on both sides of the assembly rod (209).
9. A pressure detection device for sheet-like plastic films according to claim 8, characterized in that: The lower surface of the movable block (309) is fixedly connected to a mounting bracket (311), and a No. 3 motor (312) is fixedly connected to one side of the lower end of the mounting bracket (311). The output shaft of the No. 3 motor (312) is fixedly connected to a drive wheel (313), and the drive wheel (313) is located above the L-shaped bracket (101).