Edge grinding machine for coated glass

Abstract

The invention relates to the technical field of glass edging, in particular to a coated glass edging machine which comprises a machine tool, a motor, a roller assembly, a fixing frame and a polishing cutter, the roller assembly comprises a fixed roller plate and a movable roller plate, the fixed roller plate is connected to the top of the machine tool, the movable roller plate is slidably connected to the front side of the fixed roller plate, and the fixed roller plate is connected to the top of the machine tool. A reset spring is connected between the outer wall of the movable roller plate and the outer wall of the fixed roller plate, and the fixing frame is connected with the fixed roller plate. The fixing frame is moved to drive the upper grinding knife to move, so that the grinding distance between the upper grinding knife and the lower grinding knife is equal to the thickness of the coated glass, the step of blade replacement is reduced, the working efficiency is improved, meanwhile, the fixing frame is pressed downwards to make contact with the top of the coated glass to fix the coated glass, and the situation that hands make contact with a coating layer on the upper surface of the coated glass is avoided; and moreover, the stress uniformity of the coated glass is improved, so that the quality of the coated glass is improved.

Description

Technical Field

[0001] The invention relates to the technical field of glass edge grinding, in particular to an edge grinding machine for coated glass. Background Art

[0002] Coated glass is a kind of glass with one or more layers of metal, alloy or metal compound film coated on the surface of the glass. It is often used in the production of doors and windows. To meet specific usage requirements, it can be divided into various types such as heat-reflective glass, low-emissivity glass Low-E, conductive film glass, etc. Before installing the coated glass, its edges need to be ground and polished. The working principle of the grinder for grinding the edges of coated glass is mainly to drive the grinding wheel or sanding belt to rotate through the motor, first remove the coating on the top edge of the coated glass, and then grind and polish the edge of the glass.

[0003] There are many kinds of existing glass edge grinding machines. In order to control costs, small processing plants generally use hand-push edge grinding machines. The glass is placed on the machine and pushed by hand to move along the edge of the machine. The edge of the glass is grinded by the grinding wheel rotating on the edge of the machine. The edge of the glass is generally grinded into an arc shape. Therefore, compared with ordinary grinding wheels, the grinding wheel for grinding glass has an annular groove on the periphery of the grinding wheel. The edge of the glass is grinded by the annular groove. When grinding glass of different thicknesses, grinding wheels with annular grooves of different sizes are replaced. Due to the limited management of small processing plants and limited warehouse space, coated glass of different specifications will be stored in the same warehouse during storage. Glass of multiple specifications will be taken out at one time during pick-up processing. During transportation, coated glasses of different specifications may be mixed together. Before grinding, the glass needs to be classified, which is time-consuming and laborious. Alternatively, during the grinding process, grinding wheels of different specifications need to be replaced according to glass of different thicknesses, which is also time-consuming and laborious. In order to avoid replacing grinding wheels of different sizes, two ordinary grinding wheels are generally arranged vertically and staggered to grind the edges of the grinding wheels up and down. However, when grinding thicker glass, the angle formed by the two grinding wheels and the edges of the glass is relatively small for thick glass, so the middle part is not easy to be polished. When grinding thinner glass, the angle formed with the edge of the thin glass is relatively large, which will cause edges to appear angular during grinding.

[0004] In order to avoid replacing the grinding wheel several times during the grinding process, a coated glass edge grinding machine is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide an edge grinding machine for coated glass. In order to solve the problem of needing to replace different grinding wheels when grinding the edges of glass of different thicknesses, the fixed frame is moved to make the suction plate contact with the top of the coated glass, and at the same time the upper grinding knife is driven to move the same distance, so that the distance between the upper grinding knife and the lower grinding knife is the same as the thickness of the coated glass, thereby solving the problem of needing to replace grinding wheels of different sizes when grinding the edges of glass of different thicknesses.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A coated glass edge grinding machine comprises a machine tool and a motor, a roller assembly, a fixed frame and a grinding knife, wherein the roller assembly comprises a fixed roller plate and a movable roller plate, wherein the fixed roller plate is connected to the top of the machine tool, wherein the movable roller plate is slidably connected to the front side of the fixed roller plate, wherein the movable roller plate and the side wall of the fixed roller plate are initially arranged in a staggered manner, wherein a return spring is connected between the movable roller plate and the outer wall of the fixed roller plate, wherein the fixed frame is connected to the fixed roller plate, wherein the interior of the fixed roller plate and the top of the fixed frame are connected to a limiting assembly, wherein the grinding knife is connected to Below the motor, translation slide grooves are provided on both sides of the inner wall of the fixed frame, a push plate is slidably connected between the two translation slide grooves, a through slide groove is provided on the top of the push plate, and a slide plate is slidably connected to the inner wall of the through slide groove, and the fixed frame is driven to move downward by pressing the push plate down and the slide plate is made to fit with the top of the coated glass. At the same time, the fixed frame changes the thickness of the grinding knife, pushes the moving roller plate backward and makes it flush with the side wall of the fixed roller plate, at this time, the limit assembly fixes the fixed frame and the push plate, and the slide plate is pushed to the right to the rightmost end of the push plate to squeeze the limit assembly to release the fixation of the fixed frame and the push plate.

[0008] In the above scheme, the coated glass is fixed by moving the fixing frame to avoid contact between the hand and the coating layer on the upper surface of the coated glass to damage the coating layer, and to improve the uniformity of the force applied to the coated glass, thereby improving the quality of the coated glass. When the fixing frame moves downward, the upper grinding knife will be driven to move, so that the grinding distance between the upper grinding knife and the lower grinding knife matches the thickness of the coated glass.

[0009] Preferably, a rectangular groove is provided on the top of the fixed roller plate, and the limiting assembly includes a rectangular block, a U-shaped rod and a fixed column, the rectangular block is connected to the movable roller plate, the rectangular block and the U-shaped rod are both located inside the rectangular groove, and the U-shaped rod is located on the rear side of the rectangular block, a plurality of movable rods are connected through the left side of the rectangular block, two vertical sliding grooves are provided on the left and right outer walls of the fixed roller plate, both ends of the U-shaped rod pass through the bottom of the inner wall of the vertical sliding groove and are connected to the fixed frame, a push rod is connected to the front side of the movable roller plate, and one end of the push rod is connected to the push plate.

[0010] In the above scheme, when the frame moves down to the specified height, the push plate is pushed to drive the right roller to move, and the roller plate drives the rectangular block to move and connect with the U-shaped rod, and the U-shaped rod is fixed, so that the frame is fixed to avoid shaking during grinding, which affects the grinding quality.

[0011] Preferably, the fixed column is movably connected to the top of the fixed frame, and the bottom extends into the interior of the translational slide groove, the outer wall of the fixed column is connected to a compression spring, the top of the push plate is provided with a fixed groove, the fixed groove cooperates with the fixed column, the inner wall of the through slide groove is provided with a connecting groove, the connecting groove is connected to the fixed groove, and a push block is connected to the right side of the slide plate, the push block cooperates with the connecting groove.

[0012] In the above scheme, when the push plate moves forward, the push plate is fixed by the fixing column to prevent the push plate from shaking during grinding, thereby improving the grinding quality.

[0013] Preferably, a vertical slide block is connected inside the vertical slide groove, the vertical slide block is connected to a fixing frame, and the suction plate is connected to the bottom of the slide block and has the same length as the slide block.

[0014] In the above scheme, the frame is driven downward by pressing the push plate, and the suction plate is connected to the top of the coated glass. The coated glass is moved by pushing the slide plate, thereby avoiding contact between the hand and the coated surface and scratching the top of the coated glass.

[0015] Preferably, the distance between the push plate and the moving roller plate is A, the distance between the upper grinding knife and the moving roller plate is B, and A is greater than B.

[0016] In the above scheme, the force arm formed by the push plate and the frame body is made greater than the force arm formed by the upper grinder and the frame body, thereby reducing the force required to lift the push plate.

[0017] Preferably, the suction plate includes an outer shell, a moving block and a rubber pad, the outer shell is connected to the bottom of the skateboard, the moving block is slidably connected to the inside of the outer shell, the rubber pad is connected to the bottom of the moving block, a plurality of circular grooves are provided at the bottom of the rubber pad, air holes are provided at the top of the inner wall of the circular groove, a plurality of air intake cavities are provided inside the moving block, the cross-section of the air intake cavity is set to be n-shaped, a piston is slidably connected to the inner wall of the air intake cavity, the top of the piston passes through the air intake cavity and is connected to the inner wall of the outer shell, and the air intake cavity is communicated with the air holes.

[0018] In the above scheme, the moving block is pushed into the inner wall of the shell, thereby driving the piston to move downward and sucking out the gas inside the circular groove, so that the rubber pad fits tightly against the coated glass to fix the glass, while preventing the polished wastewater from flowing to the surface of the glass and preventing the coating from being scratched by glass fragments in the wastewater.

[0019] Preferably, the bottom end of the air outlet is inclined toward the front side, and the diameter becomes smaller from top to bottom.

[0020] In the above scheme, when the grinding is finished, the dirty water on the edge is blown away by gas, and the negative pressure is prevented from attracting water to the glass surface.

[0021] Preferably, the left, right and rear edges of the rubber pad are connected with extended edges, and the bottom of the extended edges is inclined and extended in a direction away from the rubber pad.

[0022] In the above scheme, the rubber pad is surrounded by the extension, thereby limiting the direction of air outlet, further improving the effect of draining away sewage.

[0023] Preferably, the grinding knife includes an upper grinding knife, a lower grinding knife, a connecting rod, an outer grinding ring and a bearing, the connecting rod is connected to the bottom of the motor output end, the cross-section of the lower grinding knife is set to be an isosceles trapezoid, and the narrow side is upward, the lower grinding knife is located below the connecting rod, and the top is connected to a grinding column, the grinding column is connected to the bottom end of the connecting rod, the sliding sleeve is sleeved on the outer wall of the connecting rod, the outer grinding ring is connected to the bottom of the sliding sleeve, the upper grinding knife is connected to the inner wall of the outer grinding ring, the bearing is connected to the outer wall of the sliding sleeve, the bottom of the fixing frame is connected to the bearing, the upper grinding knife is annular, the cross-section of the upper grinding knife is set to be an isosceles trapezoid, and the narrow side is downward.

[0024] In the above scheme, the upper grinding knife is driven by the sliding sleeve to move up and down a specified distance on the outer wall of the grinding column, so that the upper grinding knife and the lower grinding knife form a new whole, thereby fitting better with the edge of the coated glass and making the grinding smoother.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The upper grinder is driven to move by the mobile fixing frame, so that the grinding distance between the upper grinder and the lower grinder is equal to the thickness of the coated glass, which reduces the steps of replacing the blade and improves the work efficiency. At the same time, the fixing frame is pressed down to contact with the top of the coated glass to fix it, avoiding contact between the hand and the coating layer on the upper surface of the coated glass to damage the coating layer, and improving the uniformity of the force on the coated glass, thereby improving the quality of the coated glass.

[0027] 2. The moving rod on the front side of the rectangular block is engaged with the U-shaped rod to indirectly fix the fixing frame, thereby preventing the fixing frame from driving the coated glass to move up and down during grinding, thereby improving the grinding quality. Due to the large gap on the top of the machine tool, by fixing the fixing frame, the downward movement distance of the fixing frame is also limited, thereby avoiding excessive downward pressure from the hand during grinding, which may damage the glass.

[0028] 3. Since the wastewater generated by grinding contains glass fragments, it will scratch the coating layer during cleaning. The glass is fixed by the suction plate while the top edge of the glass is compacted, thereby preventing the wastewater from flowing to the surface of the coated glass during grinding, thereby preventing the coating layer from being scratched and improving the quality of grinding. At the end of grinding, when the suction plate is separated from the coated glass, an air flow will be blown out, which will blow away the wastewater on the glass surface and avoid manual cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the top view structure of the present invention;

[0030] Figure 2 For the present invention Figure 1 AA cross-sectional structural diagram;

[0031] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure of the D part;

[0032] Figure 4 For the present invention Figure 2 A schematic diagram of the enlarged structure of part E in the middle;

[0033] Figure 5 For the present invention Figure 1 Schematic diagram of CC cross-section structure;

[0034] Figure 6 For the present invention Figure 1 BB cross-sectional structure diagram;

[0035] Figure 7 It is a schematic diagram of the side cross-sectional structure of the present invention;

[0036] Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure of the F part;

[0037] Fig. 9 For the present invention Figure 8 Schematic diagram of the structure of the moving roller plate in the backward movement state;

[0038] Fig.10 It is a schematic diagram of the cross-sectional structure of the suction plate of the present invention.

[0039] In the figure: 1, machine tool; 2, motor; 3, roller assembly; 301, fixed roller plate; 3011, rectangular groove; 3012, vertical slide; 3013, vertical slider; 302, mobile roller plate; 3021, return spring; 3022, push rod; 4, fixed frame; 401, translation slide; 402, push plate; 4021, through slide; 4022, fixed groove; 4023, connecting groove; 403, slide plate; 4031, push block; 404, suction plate; 4041, housing; 4042, mobile block ; 40421, air intake cavity; 40423, piston; 4043, rubber pad; 40431, circular groove; 40432, air hole; 40433, extension edge; 5, grinding knife; 501, upper grinding knife; 502, lower grinding knife; 5021, grinding column; 503, connecting rod; 504, sliding sleeve; 505, outer grinding ring; 506, bearing; 6, limit assembly; 601, rectangular block; 6011, moving rod; 602, U-shaped rod; 603, fixed column; 6031, compression spring; 7, coated glass. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention, and combine the working state to make its structural features more detailed. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0041] See also Figures 1 to 10 The present invention provides an edge grinding machine for coated glass, and the technical solution is as follows:

[0042] A coating glass 7 edge grinding machine, referring to Figure 1 , Figure 2 , Figure 3 and Figure 4, including a machine tool 1 and a motor 2, a roller assembly 3, a fixed frame 4 and a grinding knife 5, the roller assembly 3 includes a fixed roller plate 301 and a movable roller plate 302, the fixed roller plate 301 is connected to the top of the machine tool 1, the movable roller plate 302 is slidably connected to the front side of the fixed roller plate 301, the movable roller plate 302 is initially convex relative to the side wall of the fixed roller plate 301, a return spring 3021 is connected between the movable roller plate 302 and the outer wall of the fixed roller plate 301, the fixed frame 4 is connected to the fixed roller plate 301, the fixed roller plate 301 is internally connected to the top of the fixed frame 4 with a limiting assembly 6, the grinding knife 5 is connected below the motor 2, and the inner wall of the fixed frame 4 is provided with translation grooves 401 on both sides, and the two translation grooves 401 A push plate 402 is slidably connected between them, and a through slide groove 4021 is formed on the top of the push plate 402. A slide plate 403 is slidably connected to the inner wall of the through slide groove 4021. By pressing down the push plate 402, the fixing frame 4 is driven to move downward and the slide plate 403 is fitted with the top of the coated glass 7. At the same time, the fixing frame 4 changes the thickness of the grinding knife 5, pushes the moving roller plate 302 backward and makes it flush with the side wall of the fixed roller plate 301. At this time, the limiting assembly 6 fixes the fixing frame 4 and the push plate 402, and pushes the slide plate 403 to the right to the rightmost end of the push plate 402 to squeeze the limiting assembly 6 to release the fixing of the fixing frame 4 and the push plate 402. When releasing the fixation, the fixation of the push plate 402 is first released, and then the moving roller plate 302 is reset under the push of the reset spring 3021, and the fixation of the fixing frame 4 is released.

[0043] As an embodiment of the present invention, refer to Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9, a rectangular groove 3011 is opened on the top of the fixed roller plate 301, and the limiting component 6 includes a rectangular block 601, a U-shaped rod 602 and a fixed column 603. The rectangular block 601 is connected to the movable roller plate 302, and the rectangular block 601 and the U-shaped rod 602 are both located inside the rectangular groove 3011, and the U-shaped rod 602 is located at the rear side of the rectangular block 601. A plurality of movable rods 6011 are connected through the left side of the rectangular block 601. When the rectangular block 601 approaches the U-shaped rod 602, under the reverse thrust of the U-shaped rod 602, the movable rod 6011 will form a groove that fits the U-shaped rod 602, thereby fixing the U-shaped rod 602. When the grinding is completed, the reset spring 3021 pushes the movable roller plate 302 to reset, and drives the rectangular block 601 to reset. When the rectangular block 601 follows the movable roller plate 302 to reset The movable rod 6011 is reset under the push of the inner wall of the rectangular groove 3011, and the fixation of the U-shaped rod 602 is released. Two vertical sliding grooves 3012 are provided on the outer walls on the left and right sides of the fixed roller plate 301. Both ends of the U-shaped rod 602 pass through the bottom of the inner wall of the vertical sliding groove 3012 and are connected to the fixed frame 4, so that the U-shaped rod 602 and the fixed frame 4 form a whole. The U-shaped rod 602 is limited and fixed by the rectangular block 601, thereby indirectly fixing the fixed frame 4, thereby improving the stability of the coated glass 7 during grinding, and at the same time avoiding the glass being crushed by excessive downward pressure of the hand during the grinding process. The front side of the movable roller plate 302 is connected to a push rod 3022, and one end of the push rod 3022 is connected to the push plate 402. When the push plate 402 moves backward, the movable roller plate 302 is pushed to move by the push rod 3022.

[0044] As an embodiment of the present invention, refer to Figure 2 , Figure 4 and Figure 5 The vertical slide groove 3012 is internally connected with a vertical slider 3013, and the vertical slider 3013 is connected to the fixing frame 4. By pressing down the push plate 402, pressure is applied to the top of the coated glass 7, so that the force on the coated glass 7 is more uniform. The suction plate 404 is connected to the bottom of the slide plate 403 and has the same length as the slide plate 403. By pushing the slide plate 403, the coated glass 7 is driven to move, thereby avoiding contact between the hand and the surface of the coated glass 7 and scratching the top of the coated glass 7.

[0045] As an embodiment of the present invention, refer to Figure 2 and Figure 4 The length of the push plate 402 from the moving roller plate 302 is A, the length of the upper grinder 501 from the moving roller plate 302 is B, and A is greater than B, so that the force arm formed by the push plate 402 and the frame is greater than the force arm formed by the upper grinder 501 and the frame, and the lifting torque formed when the push plate 402 is lifted is greater than the downward pressure torque of the upper grinder 501, thereby reducing the force required to lift the push plate 402.

[0046] As an embodiment of the present invention, refer to Figure 3 The fixing column 603 is movably connected to the top of the fixing frame 4, and the bottom extends to the inside of the translation slide groove 401. The outer wall of the fixing column 603 is connected to the compression spring 6031. The top of the push plate 402 is provided with a fixing groove 4022, and the fixing groove 4022 cooperates with the fixing column 603. When the push plate 402 moves backward, the fixing column 603 is first lifted up, so that the fixing column 603 is engaged with the fixing groove 4022, thereby fixing the push plate 402 to prevent the push plate 402 from shaking back and forth during grinding. The inner wall of the through slide groove 4021 is provided with a connecting groove 4023, and the connecting groove 4023 is communicated with the fixing groove 4022. A pushing block 4031 is connected to the right side of the slide plate 403, and the pushing block 4031 cooperates with the connecting groove 4023. When the slide plate 403 moves to the right end, the fixing column 603 is lifted up by the pushing block 4031, thereby releasing the fixation of the push plate 402.

[0047] As an embodiment of the present invention, refer to Fig.10 The suction plate 404 includes a shell 4041, a moving block 4042 and a rubber pad 4043. The shell 4041 is connected to the bottom of the slide plate 403. The moving block 4042 is slidably connected to the inside of the shell 4041. The rubber pad 4043 is connected to the bottom of the moving block 4042. A plurality of circular grooves 40431 are provided at the bottom of the rubber pad 4043. Air holes 40432 are provided at the top of the inner wall of the circular groove 40431. A plurality of air inlet cavities 40421 are provided inside the moving block 4042. The cross section of the air inlet cavity 40421 is set as n-shaped. A piston 40423 is slidably connected to the inner wall of the air inlet cavity 40421. The top of the piston 40423 The portion passes through the air intake cavity 40421 and is connected with the inner wall of the shell 4041. The air intake cavity 40421 is communicated with the air hole 40432. By pushing the moving block 4042 into the inner wall of the shell 4041, the movable piston 40423 is indirectly moved downward in the air intake cavity 40421, and the gas inside the circular groove 40431 is sucked into the air intake cavity 40421, so that the air pressure inside the circular groove 40431 is reduced, so that the rubber pad 4043 fits tightly with the coated glass 7 to fix the glass, and the suction plate 404 completely covers the edge of the polished side of the coated glass 7, thereby preventing the polished sewage from flowing to the surface of the glass and preventing the coating from being scratched by glass fragments in the sewage.

[0048] As an embodiment of the present invention, refer to Fig.10 The bottom end of the air outlet 40432 is inclined toward the front side, so as to blow the sewage away from the surface of the coated glass 7, and prevent the sewage from flowing to the coating area of ​​the coated glass 7 under the influence of negative pressure when the suction plate 404 is lifted, and the coating is scratched by glass fragments. The diameter becomes smaller from top to bottom, thereby increasing the flow rate of the blown gas and further discharging the sewage.

[0049] As an embodiment of the present invention, refer to Fig.10 The left, right and rear edges of the rubber pad 4043 are connected with extended edges 40433, and the bottom of the extended edge 40433 is inclined and extended away from the rubber pad 4043. The extended edge 40433 surrounds the rubber pad 4043, thereby limiting the direction of air outlet and further improving the effect of discharging sewage.

[0050] As an embodiment of the present invention, refer to Figure 5 The grinding knife 5 includes an upper grinding knife 501, a lower grinding knife 502, a connecting rod 503, an outer grinding ring 505 and a bearing 506. The connecting rod 503 is connected to the bottom of the output end of the motor 2. The cross section of the lower grinding knife 502 is set to be an isosceles trapezoid with a narrow side facing upward. The lower grinding knife 502 is located below the connecting rod 503, and a grinding column 5021 is connected to the top. The grinding column 5021 is connected to the bottom of the connecting rod 503. The sliding sleeve 504 is sleeved on the outer wall of the connecting rod 503. The outer grinding ring 505 is connected to the bottom of the sliding sleeve 504. The upper grinding knife 501 is connected to the inner wall of the outer grinding ring 505, so that when the glass contacts the grinding knife 5, it first contacts the outer grinding ring 505 to remove the coating on the edge of the coated glass 7, and finally Then it contacts the upper grinder 501 and the lower grinder 502, the bearing 506 is connected to the outer wall of the sliding sleeve 504, and the bottom of the fixing frame 4 is connected to the bearing 506, and the fixing frame 4 drives the bearing 506 to move to drive the upper grinder 501 and the outer grinding ring 505 to a certain position, thereby adjusting the film removal height and the thickness of the grinding knife 5 at the same time, thereby reducing the time for replacing the blade and improving work efficiency. The upper grinder 501 is annular, and the cross-section of the upper grinder 501 is set to be an isosceles trapezoid, with the narrow side facing downward, and is symmetrically arranged with the lower grinder 502 relative to the coated glass 7. The edges and corners of the glass are ground by the hypotenuse of the trapezoid, and the edges of the glass are ground by the grinding column 5021, so as to avoid the phenomenon of missing grinding and improve the grinding effect.

[0051] Working principle: In order to avoid the need to replace grinding knives of different sizes when changing to different thicknesses of glass during the grinding process, the upper grinding knives 501 are driven to move down to a suitable height while the mobile fixing frame 4 is fixed to the coated glass 7;

[0052] Specifically, first, the fixing frame 4 is lifted, and the coated glass 7 is placed on the machine tool 1 and below the fixing frame 4, and the side to be polished is placed against the movable roller plate 302, and then the push plate 402 is pressed down to make the bottom of the suction plate 404 contact with the top of the coated glass 7, and adsorb and fix it to avoid shaking during polishing. When the push plate 402 moves downward, it will drive the fixing frame 4 to move downward as a whole, and when the fixing frame 4 moves downward, it will drive the upper grinding knife 501 to move downward, so as to adjust the gap between the upper grinding knife 501 and the lower grinding knife 502. The distance is until it is the same as the thickness of the coated glass 7, and then the push plate 402 is pushed backward by hand, and the movable roller plate 302 is pushed backward by the push rod 3022 to make the movable roller plate 302 flush with the side wall of the fixed roller plate 301. When continuing to move backward, the push plate 402 will engage with the fixed column 603 and the fixed groove 4022 on its top, thereby fixing the push plate 402 to prevent the push plate 402 from shaking back and forth during grinding. Finally, the slide plate 403 is pushed to drive the coated glass 7 to move and grind the edge of the coated glass 7.

[0053] In order to prevent the frame from moving up and down during polishing, the frame is fixed by engaging the rectangular block 601 with the U-shaped block. When the rectangular block 601 moves following the moving roller plate 302, the moving rod 6011 on the rear side of the rectangular block 601 forms a groove that fits the U-shaped rod 602 under the reverse push of the U-shaped rod 602, thereby fixing the U-shaped rod 602, thereby limiting the upward movement of the fixed frame 4 during polishing of the coated glass 7, thereby avoiding the reduction of polishing quality. At the end of polishing, the rectangular block 601 follows the moving roller plate 302 to reset, and under the push of the inner wall of the rectangular groove 3011, the moving rod 6011 returns to its original state.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coated glass edge grinding machine, comprising a machine tool (1) and a motor (2), characterized in that: The machine tool (1) further comprises a roller assembly (3), a fixed frame (4) and a grinding knife (5), wherein the roller assembly (3) comprises a fixed roller plate (301) and a movable roller plate (302), wherein the fixed roller plate (301) is connected to the top of the machine tool (1), wherein the movable roller plate (302) is slidably connected to the front side of the fixed roller plate (301), wherein a return spring (3021) is connected between the movable roller plate (302) and the outer wall of the fixed roller plate (301), wherein the fixed frame (4) is connected to the fixed roller plate (301), wherein the interior of the fixed roller plate (301) is connected to the top of the fixed frame (4) with a limiting assembly (6), wherein the grinding knife (5) is connected to the bottom of the motor (2), wherein translation grooves (401) are provided on both sides of the inner wall of the fixed frame (4), and the two movable roller plates (302) are provided with a plurality of movable roller plates (302). A push plate (402) is slidably connected between the translational slide grooves (401), a through slide groove (4021) is opened on the top of the push plate (402), and a slide plate (403) is slidably connected to the inner wall of the through slide groove (4021). By pressing down the push plate (402), the fixed frame (4) is driven to move downward and the slide plate (403) is made to fit with the top of the coated glass (7). At the same time, the fixed frame (4) changes the thickness of the grinding knife (5), pushes the moving roller plate (302) backward and flush with the side wall of the fixed roller plate (301), and at this time, the limiting component (6) fixes the fixed frame (4) and the push plate (402), and pushes the slide plate (403) to the right to the rightmost end of the push plate (402) to squeeze the limiting component (6) to release the fixation of the fixed frame (4) and the push plate (402).

2. The coated glass edge grinding machine according to claim 1, characterized in that: The grinding knife (5) comprises an upper grinding knife (501), a lower grinding knife (502), a connecting rod (503), an outer grinding ring (505) and a bearing (506); the connecting rod (503) is connected to the bottom of the output end of the motor (2); the cross section of the lower grinding knife (502) is set to be an isosceles trapezoid with a narrow side facing upwards; the lower grinding knife (502) is located below the connecting rod (503) and is connected to a grinding column (5021) at the top; the grinding column (5021) is connected to the bottom end of the connecting rod (503); the sliding sleeve (504) is sleeved on the outer wall of the connecting rod (503); the outer grinding ring (505) is connected to the bottom of the sliding sleeve (504); the upper grinding knife (501) is connected to the inner wall of the outer grinding ring (505); the bearing (506) is connected to the outer wall of the sliding sleeve (504); and the bottom of the fixing frame (4) is connected to the bearing (506).

3. The coated glass edge grinding machine according to claim 2, characterized in that: The upper grinding knife (501) is in the shape of a ring, and the cross section of the upper grinding knife (501) is set to be an isosceles trapezoid with a narrow side facing downward.

4. The coated glass edge grinding machine according to claim 1, characterized in that: The top of the fixed roller plate (301) is provided with a rectangular groove (3011), the limiting assembly (6) comprises a rectangular block (601), a U-shaped rod (602) and a fixed column (603), the rectangular block (601) is connected to the movable roller plate (302), the rectangular block (601) and the U-shaped rod (602) are both located inside the rectangular groove (3011), and the U-shaped rod (602) is located at the rear side of the rectangular block (601), and the rectangular block (601) is connected to the movable roller plate (302). A plurality of movable rods (6011) are connected through the left side of the U-shaped block (601); two vertical slide grooves (3012) are provided on the outer walls on the left and right sides of the fixed roller plate (301); both ends of the U-shaped rod (602) pass through the bottom of the inner wall of the vertical slide groove (3012) and are connected to the fixed frame (4); a push rod (3022) is connected to the front side of the movable roller plate (302); one end of the push rod (3022) is connected to the push plate (402).

5. The coated glass edge grinding machine according to claim 4, characterized in that: The fixed column (603) is movably connected to the top of the fixed frame (4), and the bottom extends to the inside of the translational slide groove (401). The outer wall of the fixed column (603) is connected to a compression spring (6031). The top of the push plate (402) is provided with a fixed groove (4022), and the fixed groove (4022) cooperates with the fixed column (603). The inner wall of the through slide groove (4021) is provided with a connecting groove (4023), and the connecting groove (4023) is connected to the fixed groove (4022). The right side of the slide plate (403) is connected to a push block (4031), and the push block (4031) cooperates with the connecting groove (4023).

6. The coated glass edge grinding machine according to claim 5, characterized in that: The vertical slide groove (3012) is internally connected with a vertical slide block (3013), and the vertical slide block (3013) is connected to a fixing frame (4). The suction plate (404) is connected to the bottom of the slide block (403) and has the same length as the slide block (403).

7. The coated glass edge grinding machine according to claim 5, characterized in that: The distance between the push plate (402) and the movable roller plate (302) is A, the distance between the upper grinding knife (501) and the movable roller plate (302) is B, and A is greater than B.

8. The coated glass edge grinding machine according to claim 6, characterized in that: The suction plate (404) comprises a shell (4041), a moving block (4042) and a rubber pad (4043), wherein the shell (4041) is connected to the bottom of the slide plate (403), the moving block (4042) is slidably connected to the inside of the shell (4041), the rubber pad (4043) is connected to the bottom of the moving block (4042), and a plurality of circular grooves (40431) are formed at the bottom of the rubber pad (4043), and the inner wall top of the circular groove (40431) is provided with a plurality of circular grooves (40431). An air hole (40432) is provided, and a plurality of air intake cavities (40421) are provided inside the moving block (4042), and the cross section of the air intake cavity (40421) is set to be n-shaped, and a piston (40423) is slidably connected to the inner wall of the air intake cavity (40421), and the top of the piston (40423) passes through the air intake cavity (40421) and is connected to the inner wall of the shell (4041), and the air intake cavity (40421) is communicated with the air hole (40432).

9. The coated glass edge grinding machine according to claim 8, characterized in that: The bottom end of the air outlet hole (40432) is inclined toward the front side, and the diameter becomes smaller from top to bottom.

10. The coated glass edge grinding machine according to claim 8, characterized in that: The left, right and rear edges of the rubber pad (4043) are all connected with extension edges (40433), and the bottom of the extension edge (40433) is inclined and extends in a direction away from the rubber pad (4043).

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