Laminated glass trimming device
By designing a laminated glass trimming device, which uses carbide rollers to cut the laminated glass simultaneously from both sides, the problem of cumbersome and complicated laminated glass trimming process is solved, achieving efficient and precise cutting results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN ZHENHUA XIANGPING GLASS CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-05-12
AI Technical Summary
The trimming process for laminated glass is complicated and tedious. Conventional glass cutters cannot cut the interlayer film neatly in one go, requiring multiple steps.
Design a laminated glass trimming device that uses carbide rollers to cut the laminated glass simultaneously from both sides. The cutting width is precisely controlled by a rectangular array of roller seats and a positioning system, and the cutting is achieved by repeatedly deepening the scratches.
It simplifies the edge trimming process of laminated glass, achieves efficient and neat cutting results, and solves the cumbersome and complicated problems in existing technologies.
Smart Images

Figure CN224223998U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of glass cutting tool technology, specifically to a laminated glass trimming device. Background Technology
[0002] Laminated glass is a composite glass made of two or more layers of glass with one or more layers of organic polymer interlayer sandwiched in between, and then permanently bonded together. It features safety, sound insulation, and UV protection.
[0003] However, because its interlayer (such as PVB, EVA, etc.) is tough, conventional glass cutters cannot cut it neatly in one go. Therefore, trimming laminated glass is more complicated than trimming ordinary glass. To trim laminated glass that has been glued together, a glass cutter is needed to first scratch the surface glass layer to create scratches, then a wire saw or angle grinder is used to cut along the scratches. At the same time, a heat gun is used to soften the interlayer, and finally a utility knife is used to trim the interlayer. The whole process is extremely tedious and complicated.
[0004] In view of this, the applicant proposes this invention to simplify the edge trimming process of laminated glass. Utility Model Content
[0005] Therefore, this utility model provides a laminated glass trimming device to solve the problem of cumbersome and complicated trimming process caused by the presence of polymer interlayer in laminated glass in the prior art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] This utility model discloses a laminated glass trimming device, comprising:
[0008] The machine frame has four carbide rollers at the front end and a pull handle at the rear end, the direction of rotation of the pull handle being parallel to the direction in which the carbide rollers cut the glass;
[0009] The top block has two sight positioning pins installed at its upper and lower ends. The sight positioning pins are slidably disposed in a through groove, which passes through the machine frame and is parallel to the length direction of the machine frame.
[0010] An adjusting screw is connected at one end to the top block, and the adjusting screw is mounted at the end of the frame and passes through the pull handle;
[0011] The pull handle drives two hard alloy rollers to trim the laminated glass.
[0012] Furthermore, the frame includes:
[0013] The U-shaped frame has a hollow rotating shaft at its tail end, and the hollow rotating shaft has a thread inside, which engages with the thread of the adjusting screw.
[0014] A rectangular array roller seat is located at the first end of the U-shaped frame and is equipped with four of the aforementioned carbide rollers;
[0015] The U-shaped frame is used to grip the laminated glass, and the surface of the laminated glass is trimmed by two hard alloy rollers arranged diagonally on the rectangular array roller seat.
[0016] Furthermore, the pull handle includes a handle rod, a set screw, and a collar. The end of the handle rod is provided with a set screw, which is inserted into the collar and threadedly connected to the collar. The collar is slidably sleeved on the hollow rotating shaft, and the set screw is adapted to pass through the collar and abut against the hollow rotating shaft for fixation.
[0017] Furthermore, the top block includes:
[0018] The block has a rotating inner cavity inside, and an elliptical cam is rotatably mounted inside the inner cavity. The surface of the elliptical cam is adapted to abut against the bottom of the sight positioning pin.
[0019] The connecting groove has a magnet at the bottom, which is magnetically connected to the end of the adjusting screw.
[0020] Furthermore, the elliptical cam includes a dial wheel, a connecting shaft, and a cam. The sight positioning pin abuts against the cam, the axis of the cam is coaxially fixed with one end of the connecting shaft, and the other end of the connecting shaft is connected to the dial wheel.
[0021] Furthermore, the through groove is provided with graduations.
[0022] Furthermore, the sight positioning pin includes a sight groove, a pin post, and a pin cap. The cam abuts against the bottom of the pin post, the pin cap is provided at the bottom of the pin post, and the sight groove is provided at the top of the pin cap. The sight groove points to the scale.
[0023] This utility model has the following advantages:
[0024] The laminated glass trimming device disclosed in this utility model has hard alloy rollers arranged in a rectangular array at the end of the frame. In use, two hard alloy rollers arranged diagonally cut the glass simultaneously from both sides, leaving scratches in the same position on both sides of the laminated glass. The hard alloy rollers are then repeatedly used to deepen the scratches until they approach the interlayer film of the laminated glass. This achieves the purpose of cutting laminated glass in one go, solving the problem of the cumbersome and complicated trimming process caused by the presence of polymer interlayer film in laminated glass in the prior art. Attached Figure Description
[0025] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0026] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0027] Figure 1 A perspective view of the laminated glass trimming device provided by this utility model;
[0028] Figure 2 A perspective view of the sight positioning pin provided for this utility model;
[0029] Figure 3 A perspective view of the pull handle provided for this utility model;
[0030] Figure 4 An elliptical cam perspective view provided for this utility model;
[0031] Figure 5 A perspective view of the top block provided for this utility model;
[0032] Figure 6 A perspective view of the frame provided for this utility model;
[0033] In the diagram: 1. Frame; 11. U-shaped frame; 12. Hollow rotating shaft; 13. Rectangular array roller seat; 14. Scale; 2. Carbide roller; 3. Top block; 31. Block; 32. Elliptical cam; 321. Dial wheel; 322. Connecting shaft; 323. Cam; 33. Rotating inner cavity; 34. Connecting groove; 4. Through groove; 5. Adjusting screw; 6. Pull handle; 61. Handle lever; 62. Set screw; 63. Collar; 7. Aiming pin; 71. Aiming groove; 72. Pin; 73. Pin cap. Detailed Implementation
[0034] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0035] Please refer to this as well. Figures 1-6 This utility model discloses a laminated glass trimming device, which is mainly for non-tempered laminated glass and cuts the material from both sides of the glass at the same time. The technical solution disclosed in this utility model will be described below by way of specific embodiments.
[0036] In one specific embodiment disclosed in this utility model, such as Figure 1 The laminated glass trimming device includes a frame 1, a top block 3, and an adjusting screw 5. The front end of the frame 1 is equipped with four hard alloy rollers 2 arranged in a rectangular array. The rear end of the frame 1 is rotatably equipped with a pull handle 6, the rotation direction of which is parallel to the direction in which the hard alloy rollers 2 cut the glass. In use, the pull handle 6 acts as a lever, allowing the hard alloy rollers 2 to simultaneously embed into the glass material from both sides. Repeatedly pulling the pull handle 6 cuts the glass. In this embodiment, the end of the adjusting screw 5 is connected to the top block 3, which abuts against the edge of the laminated glass, thus guiding and positioning the glass during cutting. The adjusting screw 5 is installed at the end of the frame 1 and passes through the pull handle 6. Rotating the adjusting screw 5 adjusts the position of the top block 3 within the frame 1, thereby adjusting the width of the glass trimming.
[0037] In this embodiment, the through groove 4 runs through the entire frame 1 and is parallel to the length direction of the frame 1. A scale 14 is also provided on the through groove 4. Since two locating pins 7 are installed at the upper and lower ends of the top block 3, and the locating pins 7 are slidably disposed in the through groove 4, the width of the cut glass can be precisely controlled by pointing the locating pins 7 to the scale 14.
[0038] In some embodiments, such as Figure 6The frame 1 is made of tool steel, and a hollow rotating shaft 12 is provided at the tail end of the U-shaped frame 11. A thread 15 is provided inside the hollow rotating shaft 12, and the thread 15 engages with the adjusting screw 5 to form a self-locking thread pair. The end of the adjusting screw 5 is connected to the top block 3 to achieve the effect of pushing the top block 3. On the other hand, a rectangular array roller seat 13 is provided at the head end of the U-shaped frame 11. The rectangular array roller seat 13 is equipped with four hard alloy rollers 2, and the laminated glass surface is trimmed by two hard alloy rollers 2 arranged diagonally on the rectangular array roller seat 13.
[0039] In one specific embodiment disclosed in this utility model, such as Figure 3 The handle 6 includes a handle rod 61, a set screw 62, and a collar 63. The end of the handle rod 61 is provided with the set screw 62, which is inserted into and threadedly connected to the collar 63. The collar 63 is slidably fitted onto the hollow rotating shaft 12, and the set screw 62 is adapted to pass through the collar 63 and be firmly fixed against the hollow rotating shaft 12. Therefore, by rotating the handle rod 61, the set screw 62 can extend and be firmly fixed against the hollow rotating shaft 12. This allows adjustment of the fixing angle of the handle rod 61 on the hollow rotating shaft 12, thereby meeting the usage habits and scenarios of different users.
[0040] In one embodiment disclosed in this utility model, such as Figure 2 The sight positioning pin 7 includes a sight groove 71, a pin 72 and a pin cap 73. The cam 323 abuts against the bottom of the pin 72. The bottom of the pin 72 is provided with a pin cap 73, and the top of the pin cap 73 is provided with a sight groove 71. The sight groove 71 points to the scale 14, so that the pin 72 can simultaneously perform the functions of positioning and sight stabilization.
[0041] In this embodiment, to facilitate the installation of the top block 3 and prevent it from detaching, the top block 3 includes a block body 31 and a connecting groove 34. The block body 31 has a rotating inner cavity 33, within which an elliptical cam 32 is rotatably mounted. The outer contour surface of the elliptical cam 32 abuts against the bottom of the sight positioning pin 7, thus forming a cam structure. The elliptical cam 32 can be used to push the sight positioning pin 7 from the rotating inner cavity 33 into the through groove 4. Specifically, the elliptical cam 32 includes a dial wheel 321, a connecting shaft 322, and a cam 323. The sight positioning pin 7 abuts against the cam 323. The axis of the cam 323 is coaxially fixed to one end of the connecting shaft 322, and the other end of the connecting shaft 322 is connected to the dial wheel 321. On the other hand, the block 31 is made of stainless steel and has a connecting groove 34 at its end. A strong magnet is provided at the bottom of the connecting groove 34. The magnet is magnetically connected to the end of the adjusting screw 5. When replacing the top block 3, the block 31 can be directly separated from the adjusting screw 5.
[0042] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.
Claims
1. A laminated glass trimming device, characterized in that, include: The frame (1) has four hard alloy rollers (2) at the front end and a pull handle (6) at the rear end. The rotation direction of the pull handle (6) is parallel to the direction in which the hard alloy rollers (2) cut the glass. The top block (3) has two sight positioning pins (7) installed at its upper and lower ends. The sight positioning pins (7) are slidably disposed in the through groove (4). The through groove (4) passes through the frame (1) and is parallel to the length direction of the frame (1). The adjusting screw (5) is connected at its end to the top block (3), and the adjusting screw (5) is installed at the end of the frame (1) and passes through the pull handle (6); The pull handle (6) drives two hard alloy rollers (2) to trim the laminated glass.
2. The laminated glass trimming device according to claim 1, characterized in that, The frame (1) includes: The U-shaped frame (11) has a hollow rotating shaft (12) at its tail end. The hollow rotating shaft (12) has a thread (15) inside, and the thread (15) is threadedly engaged with the adjusting screw (5). A rectangular array roller seat (13) is located at the head end of the U-shaped frame (11) and is equipped with four of the carbide rollers (2); The U-shaped frame (11) is used to grip the laminated glass and to cut the surface of the laminated glass by two hard alloy rollers (2) arranged diagonally on the rectangular array roller seat (13).
3. The laminated glass trimming device according to claim 2, characterized in that, The handle (6) includes a handle rod (61), a set screw (62), and a collar (63). The end of the handle rod (61) is provided with a set screw (62). The set screw (62) is inserted into the collar (63) and threadedly connected to the collar (63). The collar (63) is slidably sleeved on the hollow rotating shaft (12), and the set screw (62) is adapted to pass through the collar (63) and abut against the hollow rotating shaft (12) for fixation.
4. The laminated glass trimming device according to claim 1, characterized in that, The top block (3) includes: The block (31) has a rotating inner cavity (33) inside, and an elliptical cam (32) is rotatably arranged inside the inner cavity (33). The surface of the elliptical cam (32) is adapted to abut against the bottom of the reticle positioning pin (7). The connecting groove (34) has a magnet at the bottom, and the magnet is magnetically connected to the end of the adjusting screw (5).
5. The laminated glass trimming device according to claim 4, characterized in that, The elliptical cam (32) includes a dial (321), a connecting shaft (322), and a cam (323). The sight positioning pin (7) abuts against the cam (323). The axis of the cam (323) is coaxially fixed with one end of the connecting shaft (322), and the other end of the connecting shaft (322) is connected to the dial (321).
6. The laminated glass trimming device according to claim 5, characterized in that, The through groove (4) is provided with a scale (14).
7. The laminated glass trimming device according to claim 6, characterized in that, The sight positioning pin (7) includes a sight groove (71), a pin (72) and a pin cap (73). The cam (323) abuts against the bottom of the pin (72). The pin cap (73) is provided at the bottom of the pin (72). The sight groove (71) is provided at the top of the pin cap (73). The sight groove (71) points to the scale (14).