Middle film preforming device for laminated glass
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGDUN PLASTIC GLASS (JIANGSU) TECHNOLOGY CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-05-15
AI Technical Summary
Existing interlayer preforming devices for laminated glass have difficulty accurately ensuring a 0.5-2mm margin at the edges during cutting, and the cutting edges are not neat, which affects the quality of subsequent preforming.
The interlayer preforming device for laminated glass, which includes an edge-cutting component, utilizes components such as a cutting blade, cylinder, servo motor, and clamping bar to achieve automatic cutting and waste collection of the interlayer, ensuring cutting accuracy and flatness. The interlayer is then conveyed to the rollers via a belt conveyor for preforming.
It improves the precision of the cutting position on the outer side of the interlayer and the smoothness of the cut, ensuring the pre-forming quality of laminated glass, and making automated waste collection convenient and efficient.
Smart Images

Figure CN224239851U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laminated glass technology, specifically to a preforming device for interlayer film in laminated glass. Background Technology
[0002] Laminated glass is a composite glass product consisting of two or more sheets of glass with one or more layers of organic polymer interlayer sandwiched between them. Through a special high-temperature pre-pressing (or vacuuming) and high-temperature, high-pressure process, the glass and interlayer are permanently bonded together. The core of the interlayer pre-forming process for laminated glass is to use high-temperature pre-pressing or vacuuming to initially melt the organic polymer interlayer (such as PVB or SGP) between the two glass sheets and remove interlayer air, forming a stable pre-shaped structure.
[0003] Existing interlayer preforming devices for laminated glass make it difficult for workers to accurately ensure a 0.5-2mm margin at the edges when cutting the interlayer between the glass panes, and the cutting edges are also not always neat. To address this, we propose an interlayer preforming device for laminated glass. Utility Model Content
[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.
[0005] Therefore, the technical solution adopted by this utility model is as follows:
[0006] A preforming device for interlayer film of laminated glass includes: a device body and a cutting assembly; the device body includes rollers arranged and installed at its upper end and a control box fixedly installed at its outer end; the cutting assembly includes a placement platform fixedly installed at the front end of the device body, a belt conveyor movably installed inside the placement platform, a cutting blade movably installed at the top of the placement platform, a fixing plate fixedly installed at the top of the cutting blade, a double-headed cylinder fixedly installed at the center of the bottom of the fixing plate, a fixing frame fixedly installed at both ends of the double-headed cylinder, and clamping strips arranged and fixedly installed at the bottom of the fixing frame.
[0007] Preferably, a waste bin is also movably installed on one side of the placement platform.
[0008] Preferably, a first cylinder is fixedly installed at the center of the bottom of the belt conveyor, and telescopic rods are fixedly installed on both sides of the bottom of the belt conveyor. The bottoms of the first cylinder and the telescopic rods are fixed inside the placement platform.
[0009] Preferably, positioning holes are provided on both sides of the placement platform, and positioning components are movably installed in the positioning holes. A second cylinder is fixedly installed at the center of the bottom of the positioning component, and the bottom of the second cylinder is fixed inside the placement platform.
[0010] Preferably, positioning plates are fixedly installed on both sides of the placement platform, and the positioning plates are located at the bottom of the positioning components.
[0011] Preferably, a third cylinder is also fixedly installed at the center of the top of the fixed plate, and a connecting plate is also fixedly installed on the top of the third cylinder.
[0012] Preferably, a servo motor is also fixedly installed on the bottom side of one side of the connecting plate, and a column is also fixedly installed on the bottom of the servo motor, with the column fixed to the outside of the placement platform.
[0013] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:
[0014] 1. In this utility model, when the interlayer film of the laminated glass is pre-pressed and formed by the high temperature of the device body, the excess part of the interlayer film on the outside of the glass can be automatically cut by the cutting blade on the upper part of the platform, so as to improve the accuracy of the cutting position and the flatness of the cut on the outside of the interlayer film, thereby ensuring the quality in the subsequent pre-forming. The waste material of the interlayer film cut by the cutting blade can also be clamped by the clamping strips at both ends driven by the double-headed cylinder, so as to be automatically thrown into the waste bin after the cutting blade is lifted and rotated, so as to automatically and conveniently complete the collection of waste.
[0015] 2. In this utility model, the intermediate film cut between the glass panes on the upper part of the placement platform can also be automatically transported to the rollers on the main body of the device by the drive of the belt conveyor driven by the first cylinder, so as to carry out the pre-forming processing of the interlayer glass film. Attached Figure Description
[0016] Figure 1 This is an overall structural diagram of the present invention;
[0017] Figure 2 This is another perspective view of the present invention;
[0018] Figure 3 This is a structural diagram of the placement platform and cutting blade of this utility model;
[0019] Figure 4 This is a diagram showing the internal structure of the cutting blade of this utility model;
[0020] Figure 5 This is a side sectional view of the placement platform of this utility model;
[0021] Figure 6 This is a disassembly diagram of the positioning component inside the placement platform of this utility model.
[0022] Figure label:
[0023] 100. Device body; 101. Roller shaft; 102. Control box;
[0024] 200. Edge trimming assembly; 201. Placement platform; 202. Belt conveyor; 203. Cutting blade; 204. Fixing plate; 205. Double-headed cylinder; 206. Fixing frame; 207. Clamping bar; 208. Waste bin; 209. First cylinder; 210. Telescopic rod; 211. Positioning hole; 212. Positioning component; 213. Second cylinder; 214. Positioning plate; 215. Third cylinder; 216. Connecting plate; 217. Servo motor; 218. Column. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.
[0026] The following describes, with reference to the accompanying drawings, some embodiments of a preforming device for interlayer film of laminated glass provided by this utility model.
[0027] Example 1:
[0028] Combination Figure 1-6As shown, the present invention provides a preforming device for interlayer film of laminated glass, comprising: a device body 100 and a cutting assembly 200; the device body 100 includes rollers 101 arranged and installed at its upper end and a control box 102 fixedly installed at its outer end; the cutting assembly 200 includes a placement platform 201 fixedly installed at the front end of the device body 100, a belt conveyor 202 movably installed inside the placement platform 201, a cutting blade 203 movably installed at the top of the placement platform 201, a fixing plate 204 fixedly installed at the top of the cutting blade 203, a double-headed cylinder 205 fixedly installed at the bottom center of the fixing plate 204, fixing frames 206 fixedly installed at both ends of the double-headed cylinder 205, and clamping strips 207 arranged and fixedly installed at the bottom of the fixing frames 206; a waste bin 208 is also movably installed on one side of the placement platform 201, and a first cylinder 209 is also fixedly installed at the bottom center of the belt conveyor 202. The belt conveyor 202 is also fixedly installed with telescopic rods 210 on both sides of its bottom. The bottom of the first cylinder 209 and the telescopic rods 210 are fixed inside the placement platform 201. The placement platform 201 is also provided with positioning holes 211 on both sides. Positioning components 212 are also movably installed in the positioning holes 211. The bottom center of the positioning component 212 is also fixedly installed with a second cylinder 213, and the bottom of the second cylinder 213 is fixed inside the placement platform 201. The placement platform 201 is also fixedly installed with positioning plates 214 on both sides, and the positioning plates 214 are located at the bottom of the positioning components 212. The top center of the fixed plate 204 is also fixedly installed with a third cylinder 215. The top of the third cylinder 215 is also fixedly installed with a connecting plate 216. The bottom of one side of the connecting plate 216 is also fixedly installed with a servo motor 217. The bottom of the servo motor 217 is also fixedly installed with a column 218, and the column 218 is fixed to the outside of the placement platform 201.
[0029] Specifically, laminated glass consists of two or more panes of glass with one or more layers of organic polymer interlayer sandwiched between them. The core of the interlayer preforming process for laminated glass is to use high-temperature pre-pressing or vacuum treatment to initially melt the organic polymer interlayer between the two panes of glass and remove interlayer air, forming a stable preformed structure. During the high-temperature pre-pressing of this interlayer in the device body 100, the excess portion of the interlayer on the outside of the interlayer between the glass panes can be automatically cut off by the cutting blade 203 at the top of the placement stage 201. To improve the accuracy of the cutting position and the smoothness of the cut on the outer side of the interlayer membrane, thereby ensuring the quality in subsequent preforming, the waste material of the interlayer membrane cut by the cutting blade 203 can also be clamped by the clamping bars 207 at both ends driven by the double-headed cylinder 205, so that it is automatically dropped into the waste bin 208 after the cutting blade 203 is lifted and rotated, thus automatically and conveniently completing the collection of waste material. At the same time, the interlayer membrane cut between the glass panes at the upper end of the placement table 201 can also be lifted by the first cylinder 209 and driven by the belt conveyor 202, automatically transported to the main body of the device. The roller 101 on the 100 is used for pre-forming the interlayer film of the laminated glass. The cutting blade 203 installed on the upper end of the placement table 201 is mainly used for cutting the excess part of the interlayer film on the outside of the glass, and the cutting blade 203 is reserved 2mm outward on all four sides. The positioning component 212 in the positioning hole 211 in the placement table 201 is mainly used for positioning the glass placement position, so as to ensure the accurate cutting position of the subsequent cutting blade 203. The second cylinder 213 at the bottom of the positioning component 212 is mainly used for positioning during the downward cutting of the interlayer film by the cutting blade 203. The positioning component 212 inside the hole 211 moves down, and the positioning plates 214 on both sides of the bottom of the positioning component 212 are mainly used to position the downward movement of the positioning component 212 so that the top surface of the positioning component 212 is flush with the end face of the placement table 201 after it moves down, so that the cutting blade 203 can move down to support the intermediate film during cutting. The third cylinder 215 at the upper end of the fixing frame 206 is mainly used for the lifting and lowering adjustment of the cutting blade 203. The servo motor 217 installed on the top of the column 218 is mainly used for the overall rotation drive of the cutting blade 203 to discard waste.
[0030] Working principle and usage process of this utility model:
[0031] Before preforming the interlayer film of the laminated glass, the second cylinder 213 inside the placement stage 201 is activated to lift the positioning member 212 inside the positioning hole 211. After the positioning member 212 protrudes, the bottom glass, interlayer film, and top glass can be positioned and placed sequentially through the positioning member 212. After the bottom glass, interlayer film, and top glass are positioned and placed outside the positioning member 212, the positioning member 212 is lowered by the second cylinder 213 until it is flush with the upper surface of the placement stage 201. At this time, the servo motor 217 at the upper end of the column 218 is activated to rotate the cutting blade 203 180 degrees to the top of the placed laminated glass. After the cutting blade 203 is rotated and adjusted, the third cylinder 215 is activated to drive the bottom cutting blade 203 to move down, thereby positioning and cutting the excess part of the interlayer film outside the interlayer film between the bottom glass and the top glass after the movement. After the excess part of the interlayer film is cut, the third cylinder 215 is activated. The double-headed cylinder 205 at the bottom of the fixed frame 206 moves the multiple sets of clamping bars 207 on both sides inward, thereby clamping the cut intermediate film waste through the clamping bars 207. Then, the third cylinder 215 moves the cutting blade 203 back and rotates it 180 degrees in the opposite direction to the servo motor 217, and the cutting blade 203 is moved back to the upper part of the waste bin 208. After the double-headed cylinder 205 moves the clamping bars 207 on both sides outward, the clamped waste can fall into the waste bin 208 at the bottom. As the cutting blade 203 on the upper part of the placement platform 201 moves back, the first cylinder 209 in the placement platform 201 will also be activated to drive the belt conveyor 202 to lift. After the belt conveyor 202 is lifted, it will lift the cut clamped glass as a whole, and the cut clamped glass as a whole will be transported to the roller 101 by the activated belt conveyor 202, and then transported to the device body 100 for pre-forming processing.
[0032] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A preforming device for interlayer film in laminated glass, characterized in that, include: Device body (100), edge cutting assembly (200); The device body (100) includes rollers (101) arranged and installed at its upper end and a control box (102) fixedly installed at its outer end; The edge-cutting assembly (200) includes a placement platform (201) fixedly installed at the front end of the device body (100), a belt conveyor (202) movably installed inside the placement platform (201), a cutting blade (203) movably installed on the top of the placement platform (201), a fixing plate (204) fixedly installed on the top of the cutting blade (203), a double-headed cylinder (205) fixedly installed at the bottom center of the fixing plate (204), a fixing frame (206) fixedly installed at both ends of the double-headed cylinder (205), and clamping strips (207) fixedly installed at the bottom of the fixing frame (206).
2. The interlayer preforming device for laminated glass according to claim 1, characterized in that, A waste bin (208) is also movably installed on one side of the placement platform (201).
3. The interlayer preforming device for laminated glass according to claim 1, characterized in that, A first cylinder (209) is fixedly installed at the center of the bottom of the belt conveyor (202), and telescopic rods (210) are fixedly installed on both sides of the bottom of the belt conveyor (202). The bottoms of the first cylinder (209) and the telescopic rods (210) are fixed inside the placement platform (201).
4. The interlayer preforming device for laminated glass according to claim 1, characterized in that, The placement platform (201) is provided with positioning holes (211) on both sides. A positioning component (212) is movably installed in the positioning hole (211). A second cylinder (213) is fixedly installed at the center of the bottom of the positioning component (212), and the bottom of the second cylinder (213) is fixed in the placement platform (201).
5. The interlayer preforming device for laminated glass according to claim 1, characterized in that, Positioning plates (214) are fixedly installed on both sides of the placement platform (201), and the positioning plates (214) are located at the bottom of the positioning component (212).
6. The interlayer preforming device for laminated glass according to claim 1, characterized in that, A third cylinder (215) is also fixedly installed at the center of the top of the fixed plate (204), and a connecting plate (216) is also fixedly installed on the top of the third cylinder (215).
7. The interlayer preforming device for laminated glass according to claim 6, characterized in that, A servo motor (217) is also fixedly installed on the bottom side of the connecting plate (216), and a column (218) is also fixedly installed on the bottom of the servo motor (217), and the column (218) is fixed to the outside of the placement platform (201).