Supporting template, cutting and edge-breaking device and cutting and edge-breaking method

Abstract

The invention discloses a supporting template, a cutting and edge-breaking device and a cutting and edge-breaking method, the supporting template comprises a template body, the edge of the template body exceeds the edge of a cutting contour line of glass and is smaller than the size of a to-be-cut glass edge material; at least one through hole is formed in the middle of the template body, so that a vacuum through hole area communicated with a suction device is formed; the template body is provided with a contour supporting area outside the vacuum through hole area, and the projection of the cutting contour line towards the template body is located in the contour supporting area; a vacuum air path area is formed on the inner side of the position, corresponding to the cutting contour line, of the template body, and a vacuum adsorption groove is formed in the vacuum air path area. The cutting and edge breaking device can be suitable for cutting and edge breaking of the automotive glass with the thickness being 1.4 mm or below, and the finished product rate of automotive thin glass machining is remarkably increased.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile glass production, and in particular to a supporting template, a cutting and edge breaking device, and a cutting and edge breaking method. Background Art

[0002] The automotive glass cutting and edge breaking process is an important step in the automotive glass production process. Currently, there are two main types of automotive glass cutting and edge breaking mechanisms: integrated cutting and edge breaking tables and separate cutting and edge breaking tables.

[0003] The integrated cutting and deflecting table primarily consists of a suction platform, a cutting template, and a conveyor belt. When in use, the glass is conveyed to the conveyor belt and placed above the cutting template. The suction platform, through a central vacuum device, suctions the center of the glass through the perforated cutting template and the perforated conveyor belt, allowing it to be cut and opened. After cutting, the glass remains stationary, while the deflecting device presses down along the deflecting path, deflecting the edge of the glass outside the edge of the cutting template.

[0004] The split cutting and beveling table mainly consists of a cutting table, a beveling suction cup, and a beveling table. During use, the glass is transferred to the cutting table, where the vacuum area in the center of the cutting table holds the glass for cutting. After cutting, the beveling suction cup holds the cut glass and moves it to the beveling table. The beveling suction cup lifts the glass to a certain height (clearing the table surface). A local movable support mechanism is located under the table belt, which cooperates with the beveling suction cup to provide partial support for the glass, completing the cutting and beveling process.

[0005] Existing cutting and edge-bending mechanisms are mostly used for cutting glass with a thickness of 1.6-5.0mm (hereinafter referred to as "thick glass"). When the glass thickness is ≤1.4mm (hereinafter referred to as "thin glass"), the existing mechanism is no longer suitable and is prone to problems such as cutting, cracking, edge cracking, and chipping.

[0006] Therefore, it is necessary to propose a supporting template, a cutting and breaking edge device and a cutting and breaking edge method to solve at least one of the above problems. Summary of the Invention

[0007] In response to the defects of the existing technology, the embodiments of the present invention provide a support template, a cutting and bending device, and a cutting and bending method, which can be used for cutting and bending automotive glass with a thickness of less than 1.4 mm, significantly improving the yield of automotive thin glass processing.

[0008] The specific technical solutions of the embodiments of the present invention are:

[0009] A supporting template, comprising: a template body, the outline of the template body being generally contoured to the cutting contour line of the glass, the edge of the template body exceeding a predetermined dimension of the edge of the cutting contour line of the glass and being smaller than the dimension of the glass edge to be cut; at least one through hole being provided in the middle of the template body, forming a vacuum through hole area for communicating with a suction device; the template body having a contour support area outside the vacuum through hole area, the projection of the cutting contour line toward the template body being located within the contour support area; a vacuum air path area being formed on the inner side of the template body at a position corresponding to the cutting contour line, the vacuum air path area being provided with a vacuum adsorption groove.

[0010] In a preferred embodiment, the vacuum through-hole area can at least cover the suction range of the suction device, the through-hole has relative length and width dimensions, the through-hole is a long strip-shaped through-hole with a length dimension greater than a width dimension, the number of the through-holes is more than two, and the multiple through-holes are spaced apart along the width direction.

[0011] In a preferred embodiment, the number of the through holes is more than two, and the end positions of two adjacent through holes in the length direction are staggered.

[0012] In a preferred embodiment, the length of the through hole is between 50 mm and 200 mm, the width is between 5 mm and 15 mm, and the distance between two adjacent through holes in the width direction is between 5 mm and 20 mm.

[0013] In a preferred embodiment, the template body has a first surface and a second surface relative to each other along the thickness direction; the vacuum adsorption groove is formed by being recessed from the first surface to the second surface, and a connecting groove is formed between the vacuum adsorption groove and the through hole, and the connecting groove is formed by being recessed from the first surface to the second surface.

[0014] In a preferred embodiment, the recessed depth of the vacuum adsorption groove is 30%-60% of the thickness of the support template, and the recessed width is between 3mm and 15mm.

[0015] In a preferred embodiment, the depth of the connecting groove is 30%-60% of the thickness of the supporting template, and the width of the groove is between 3mm and 15mm.

[0016] In a preferred embodiment, the outer contour edge of the vacuum air passage area is retracted by 10 mm to 50 mm relative to the cutting contour line.

[0017] In a preferred embodiment, a lead support area is further provided on the periphery of the template body, and the lead support area includes a plurality of lead support portions, which extend outward from the edge of the template body and are used to be set corresponding to the cutting leads of the glass to be cut.

[0018] In a preferred embodiment, the width of the lead support area is between 3 mm and 8 mm, and the length of the lead support area is not less than the length of the cutting lead.

[0019] In a preferred embodiment, the thickness of the support template is between 1.5 mm and 3 mm.

[0020] In a preferred embodiment, the predetermined size is between 2 mm and 8 mm.

[0021] A cutting and beveling device, comprising a supporting template as described in any one of claims 1 to 11, and a suction platform provided with a suction device, and a transmission belt provided with multiple openings, wherein the transmission belt, the supporting template and the suction device are stacked and fitted in sequence from top to bottom, and the openings on the transmission belt are used to communicate with the vacuum through-hole area and the vacuum air path area.

[0022] In a preferred embodiment, the openings are continuously distributed along the length direction of the transmission belt, and in the width direction of the transmission belt, the distribution positions of the openings at least cover the width of the glass.

[0023] In a preferred embodiment, the diameter of the openings is between 3 mm and 8 mm, and the distance between two adjacent openings is between 20 mm and 50 mm.

[0024] In a preferred embodiment, the suction device has a suction cup, the diameter of the suction cup is between 200mm-400mm, the vacuum degree of the suction device is between -0.06MPa and -0.1MPa, and the vacuum degree of the suction device can be transmitted to the lower surface of the glass to be cut through the vacuum air path area and the vacuum through-hole area.

[0025] A cutting and breaking edge method is performed using the above-mentioned cutting and breaking edge device, and the cutting and breaking edge method includes:

[0026] The original blank is transferred to the upper surface of the conveyor belt so that the cutting contour line of the original blank is centered and supported above the support template, the edge of the support template evenly exceeds the edge of the cutting contour line, and the corresponding cutting lead position is supported in the lead support area of the support template;

[0027] Turning on the suction device of the suction platform so that the vacuum through-hole area and the vacuum air passage area of the support template are adsorbed on the conveyor belt, and providing uniform adsorption force to the original blank through the openings on the conveyor belt;

[0028] Using preset cutting tools and parameters, cutting leads and cutting contours on the original blank at preset positions;

[0029] The edge material is pressed down along the outer edge of the contour line and moved along the preset edge breaking path to complete the edge breaking.

[0030] In a preferred embodiment, the length of the original sheet blank is in the range of 700 mm to 2000 mm, the width is in the range of 500 mm to 1500 mm, and the thickness is less than 1.4 mm.

[0031] In a preferred embodiment, the cutting lead and the cutting contour line are separately provided, the distance between one end of the cutting lead close to the cutting contour line and the cutting contour line is between 0.5 mm and 1.5 mm, and the length of the cutting lead is between 30 mm and 80 mm.

[0032] In a preferred embodiment, the cutting contour line has a plurality of arc-shaped corners, the number of the cutting leads is the same as the number of the corners, and the cutting leads are extended outward along the normal direction of the corners.

[0033] The technical solution of the present invention has the following significant beneficial effects:

[0034] The cutting and bending device provided in the embodiment of the present application can be used for cutting and bending automotive glass with a thickness of less than 1.4 mm, especially large-size glass (length range is 700 mm-2000 mm, width range is 500 mm-1500 mm). In particular, through the improvement of the structure of the support template, the support template is mainly formed with a vacuum through-hole area, a contour support area, a vacuum air path area and a lead support area, which can better form a vacuum sealed area between the suction device-support template-transmission belt-glass, ensure the overall flatness of the glass, and the glass can be evenly adsorbed on the transmission belt, thereby improving the success rate of cutting and bending and ensuring the yield of large-size automotive thin glass processing.

[0035] With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope thereby. Within the spirit and scope of the appended claims, the embodiments of the present invention include many variations, modifications, and equivalents. Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the drawings are merely illustrative and are used to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the various components of the present invention. Those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to specific circumstances under the guidance of the present invention.

[0037] Figure 1 This is a schematic diagram of a cutting and breaking device provided in an embodiment of the present application at a cutting and breaking station;

[0038] Figure 2 for Figure 1 A cross-sectional view of a cutting and breaking device at AA provided in an embodiment of the present application;

[0039] Figure 3 for Figure 2 A partial enlarged schematic diagram after rotating 90° at point I in the middle;

[0040] Figure 4 This is a schematic structural diagram of a suction platform provided in an embodiment of the present application;

[0041] Figure 5 This is a schematic structural diagram of a transmission belt provided in an embodiment of the present application;

[0042] Figure 6 This is a structural diagram of a support template provided in an embodiment of the present application;

[0043] Figure 7 This is a schematic diagram of the structure of the glass blank required for cutting and breaking the edges in the embodiment of the present application;

[0044] Figure 8 for Figure 7 A partial enlarged schematic diagram of point II in the middle;

[0045] Figure 9 This is a structural diagram of a support template provided in an embodiment of the present application;

[0046] Figure 10 This is a flowchart of the steps of a cutting and edge breaking method provided in an embodiment of the present application.

[0047] Reference numerals of this application:

[0048] 100. Support formwork;

[0049] 1. Template body;

[0050] 10. Through hole;

[0051] 101. Vacuum through-hole area;

[0052] 102, contour support area;

[0053] 103. Vacuum air path area;

[0054] 1031, vacuum adsorption tank;

[0055] 1032, connecting groove;

[0056] 104. Lead support area;

[0057] 1041, lead support portion;

[0058] 200, suction platform;

[0059] 21. Suction cup;

[0060] 300, transmission belt;

[0061] 3. Opening holes;

[0062] 400, glass to be cut;

[0063] 401, cutting contour line;

[0064] 402, cutting leads;

[0065] 403, breaking edge path;

[0066] 41. Corner;

[0067] X, length direction;

[0068] Y, width direction. DETAILED DESCRIPTION

[0069] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, modifications of various equivalent forms of the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0070] After analyzing the existing cutting and bending methods, the inventors found that for existing thick glass, for example, within the thickness range of 1.6-5.0mm, the glass has a certain rigidity and can be effectively fixed after local area adsorption, and can basically stably withstand the cutting force and bending force applied by the cutting device and the bending device.

[0071] As for thin glass, especially large-sized automotive glass with a thickness of less than 1.4mm, the problems currently existing in cutting machines are analyzed as follows:

[0072] When using the existing cutting and bending table to cut and bend thin glass, when the thin glass is placed on the conveyor belt, the central area suction device absorbs the middle of the glass through the perforated template and the belt, which is prone to three problems:

[0073] 1. After the glass is tightly sucked in the middle, the edge is prone to irregular warping, the cutting contour line and the belt are in unstable contact, the pressure of the cutting device is unstable when it is pressed down, the uniformity of the cutting line is reduced, and it is easy to cause cracking or edge breakage;

[0074] 2. Since the template size can only extend beyond the edge of the cutting contour line by a predetermined distance, the length of the cutting lead is limited. Once the lead extends beyond the edge of the template, the thin glass cannot maintain support for the cutting device, which can easily lead to invalid lead. When breaking the edge, the edge material cannot smoothly extend and crack to the edge of the glass. The edge material is not completely separated, resulting in failure of breaking the edge.

[0075] 3. During the edge bending process, the edge bending device is supported by the edge of the template. When downward pressure is applied to the outer edge of the contour line, the thin glass is easily deformed and warped, resulting in edge cracks or inability to be bent off.

[0076] When using an existing separate cutting and beveling table for cutting and beveling operations, after the thin glass is cut on the contour line, the edge material is prone to fall during the movement from the cutting table to the beveling table, resulting in scratches, edge cracks or breakage; in addition, after the beveling suction cup sucks up the thin glass with the cut contour line, the edge of the cut contour line sags and deforms, resulting in the lead cutting and beveling actions cannot be carried out normally.

[0077] The present invention provides a supporting template, a cutting and bending device, and a cutting and bending method, which can be applied to the cutting and bending of automotive glass with a thickness of less than 1.4 mm, and significantly improve the yield rate of automotive thin glass processing.

[0078] Please refer to the comprehensive Figures 1 to 8 The present invention provides a device and method for cutting and breaking edges in the embodiment of the present invention. The device and method can be applied to the cutting and breaking edges of thin glass of larger size such as windshield, sunroof, rear windshield, door, etc. on the vehicle. Specifically, the thin glass blank to be cut and broken edges can be rectangular, such as Figure 7As shown, the size of the blank of the glass 400 to be cut is calculated based on the minimum rectangle, and its length ranges from 700 mm to 2000 mm, and its width ranges from 500 mm to 1500 mm.

[0079] Please refer to Figure 1 、 Figure 2 and Figure 3 The cutting and beveling device may include: a supporting template 100, a suction platform 200 provided with a suction device, and a transmission belt 300 provided with a plurality of openings 3. The transmission belt 300, the supporting template 100 and the suction device are stacked and fitted in sequence from top to bottom.

[0080] The present application will be described in detail below with reference to specific drawings and implementation methods.

[0081] like Figure 6 As shown, the support template 100 is the core improved structure of the cutting and bending device. The support template 100 is a template designed for automotive thin glass with a thickness of less than 1.4 mm, and is used to provide support force for the thin glass to be cut and bent.

[0082] The supporting template 100 may include: a template body 1, the contour of the template body 1 is generally contoured to the cutting contour line 401 of the glass, the edge of the template body 1 exceeds the predetermined size of the edge of the cutting contour line 401 of the glass, and is smaller than the size of the edge of the glass 400 to be cut; at least one through hole 10 is provided in the middle of the template body 1, forming a vacuum through hole area 101 for connecting to a suction device; the template body 1 has a contour support area 102 outside the vacuum through hole area 101, and the projection of the cutting contour line 401 toward the template body 1 is located within the contour support area 102; the template body 1 is formed with a vacuum air path area 103 on the inner side of the position corresponding to the cutting contour line 401, and the vacuum air path area 103 is provided with a vacuum adsorption groove 1031.

[0083] In addition, a lead support area 104 is provided on the periphery of the template body 1. The lead support area 104 includes a plurality of lead support portions 1041. The plurality of lead support portions 1041 extend outward from the edge of the template body 1 and are used to be arranged corresponding to the cutting lead 402 of the glass 400 to be cut.

[0084] In this embodiment, the support template 100 can be in the form of a plate having a predetermined thickness, which can be between 1.5 mm and 3 mm. The upper surface of the support template 100 is in contact with the conveyor belt 300, and the lower surface is supported by a suction platform 200 equipped with a suction device. Overall, the thickness of the support template 100 can be controlled within the aforementioned relatively thin range.

[0085] The template body 1 of the support template 100 can be configured to conform to the cutting contour line 401 of the glass. The edge of the template body 1 extends beyond the edge of the cutting contour line 401 of the glass by a predetermined dimension and is smaller than the size of the edge of the glass 400 to be cut. Specifically, the projection of the template body 1 toward the glass can completely cover the cutting contour line 401, thereby providing effective and stable support for the glass during cutting.

[0086] The predetermined dimension by which the edge of the template body 1 extends beyond the edge of the cutting contour line 401 of the glass can be specifically between 2mm and 8mm, and more preferably, between 2mm and 5mm. When the predetermined dimension is ≥ 2mm, the template body 1 is guaranteed to be able to effectively support the glass to be cut via the transmission belt 300. In particular, when the glass is wire-cut, the portion of the template body 1 that extends beyond the cutting contour line 401 of the glass can provide stable support to the glass. Furthermore, when the predetermined dimension is controlled within 8mm, the template body 1 is guaranteed not to be too large, thereby preventing the edge bending process from being affected.

[0087] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 6 The support template 100 mainly includes a vacuum through-hole area 101, a contour support area 102, a vacuum air path area 103 and a lead support area 104.

[0088] The vacuum through-hole area 101 is used to transmit the vacuum degree of the suction device to the lower surface of the glass corresponding to the vacuum through-hole area 101 and the vacuum air path area 103, thereby generating adsorption force; the contour support area 102 is used to support the contour of the glass edge cutting line; the vacuum air path area 103 is used to adsorb the glass edge contour area; and the lead support area 104 is used to support lead cutting.

[0089] A through hole 10 is provided in the middle of the template body 1, and the number of the through holes 10 can be one or more than two (i.e., a plurality of through holes 10). The through hole 10 is a through hole 10 along the thickness direction of the template body 1, and one of the main functions of the through hole 10 is to transmit the negative pressure (i.e., the vacuum degree) of the suction device to the glass through a belt. A plurality of through holes 10 cooperate to form a vacuum through hole area 101 for communicating with the suction device. Specifically, the vacuum through hole area 101 can at least cover the suction range of the suction device. In addition, the vacuum degree of the suction device is between -0.06MPa and -0.1MPa, and the vacuum degree of the suction device can be transmitted to the lower surface of the glass 400 to be cut through the vacuum air path area 103 and the vacuum through hole area 101.

[0090] like Figure 4 As shown, specifically, the suction device has a suction cup 21, the diameter of the suction cup 21 is between 200mm and 400mm, and the other areas of the suction platform 200 are support planes. The projection of the outer contour of the vacuum through-hole area 101 toward the suction cup 21 can cover the circular suction port of the suction cup 21, so that the vacuum degree of the suction device can be effectively transmitted to the vacuum through-hole area 101. It should be noted that the suction device in the embodiment of the present application can utilize an existing suction device, that is, the suction device can be applicable to the cutting and bending process of thick glass, and can also be applicable to the cutting and bending process of thin glass, that is, there is no need to improve the suction device, thereby ensuring the versatility of the equipment in the cutting and bending device.

[0091] Specifically, the through hole 10 has a relative length dimension L and a width dimension W. The through hole 10 is a long strip-shaped through hole 10 whose length dimension L is greater than the width dimension W. When there are multiple through holes 10, the multiple through holes 10 are spaced apart along the width direction Y.

[0092] When the through hole 10 is a narrow, long strip, the shape of the through hole 10 facilitates full coverage of the opening 3 on the conveyor belt 300, effectively forming a vacuum-sealed area between the suction device, the support template 100, the conveyor belt 300, and the glass. Furthermore, the shape of the through hole 10 can reduce the depression formed by the thin glass being sucked in, effectively preventing the glass from being sucked down. If the through hole 10 is square or round, the suction device will easily cause the glass corresponding to the through hole 10 to sink when activated, which can easily lead to problems such as glass cracking and greater edge warping, thereby affecting the yield of glass processing.

[0093] Furthermore, the ends of two adjacent through holes 10 are staggered in the longitudinal direction X. For example, the support template 100 has opposite front and rear sides and opposite left and right sides. The two adjacent through holes 10 are respectively a first through hole 10 and a second through hole 10, wherein the first through hole 10 has a first front end and a first rear end along the longitudinal direction X, and the second through hole 10 has a second front end and a second rear end along the longitudinal direction X, wherein the second front end is closer to the front side of the support template 100 relative to the first front end, and the first rear end is closer to the rear side of the support template 100 relative to the second rear end. When the end positions of two adjacent through holes 10 are staggered front and back in the length direction X, more support is formed between the holes, which can further reliably prevent the suction device below the vacuum through hole area 101 from sucking the glass at the position corresponding to the vacuum through hole area 101 downward, that is, it can reliably ensure that the glass at the position corresponding to the vacuum through hole area 101 remains in a horizontal state as much as possible, and at the same time, it can further improve the coverage rate of the vacuum through hole area 101 and the holes on the transmission belt 300, thereby increasing the suction area.

[0094] In this embodiment, considering that the openings or slots in the support template 100 do not contact the glass and thus cannot provide support, the width of the through holes 10 cannot be too wide, otherwise the glass will be sucked down by the suction device. Specifically, the length L of the through holes 10 is between 50 mm and 200 mm, the width W is between 5 mm and 15 mm, and the spacing D0 between two adjacent through holes 10 in the width direction Y is between 5 mm and 20 mm.

[0095] When the length L, width W and spacing D0 of the through hole 10 are within the above ranges, the holes on the conveyor belt 300 can be fully covered, so that a vacuum-sealed area can be better formed between the suction device-support template 100-conveying belt 300-glass, while minimizing the depression formed after the thin glass is adsorbed.

[0096] In addition, when the number of the through hole 10 is one, as shown in FIG. Figure 9 As shown, the structure of the through hole 10 can be the same as or similar to a structure in which multiple through holes 10 are connected through a connecting portion between two adjacent through holes 10. The specific form of the connecting portion can be a slot extending through the thickness direction of the support template 100, or a channel extending through the thickness direction of the support template 100. Of course, the specific form of the through hole 10 is not limited to the above examples. Inspired by the technical essence of this application, those skilled in the art may make other changes. However, as long as the functions and effects achieved are the same or similar to those of this application, they should be included in the scope of protection of this application.

[0097] The contour support area 102 is set at the position of the template body 1 corresponding to the cutting contour line 401. Specifically, the contour support area 102 can be the edge of the vacuum through hole area 101 to the template body 1, so as to achieve the purpose of supporting the entire glass and the edge cutting line contour.

[0098] The specific structure and size of the contour support area 102 may vary depending on the structure and size of the corresponding glass product, and this application does not set a sole limitation thereto. For example, in the embodiments of this application, when the glass product is a windshield, the outer contour of the contour support area 102 or the template body 1 is generally fan-shaped.

[0099] Generally, a perforated template only has holes in the middle area that cooperate with the suction device in the middle area. The thin glass is only adsorbed in the middle suction device area. After adsorption, the thin glass in the middle area will produce a certain degree of sinking deformation. The sinking deformation in the middle will cause irregular slight corrugation around the glass, and the flatness will deteriorate, which will lead to reduced cutting stability of the knife wheel. The success rate of edge bending will also be reduced due to the corrugated warping during edge bending.

[0100] In this embodiment, a vacuum air passage area 103 is formed on the inner side of the template body 1 at a position corresponding to the cutting contour line 401. The vacuum air passage area 103 can be specifically in the form of a vacuum adsorption groove 1031 connected to the through hole 10. The vacuum adsorption groove 1031 can be configured to conform to the edge of the template body 1 to form a circumferentially closed contour along the circumference of the template body 1.

[0101] Specifically, the outer contour edge of the vacuum air passage area 103 is indented 10 mm to 50 mm relative to the cutting contour line 401. Overall, the vacuum air passage area 103 can be positioned close to the cutting contour line 401, ensuring that it surrounds a sufficiently large area of glass and effectively supports the glass. Furthermore, the vacuum air passage area 103 is located inside the cutting contour line 401 and at a certain distance from the cutting contour line 401, protecting the vacuum air passage area 103 from damage during the cutting process.

[0102] The vacuum adsorption groove 1031 is connected to the opening 3 on the conveyor belt 300, and the vacuum adsorption groove 1031 is also connected to the through hole 10 in the vacuum through hole 10 area. In this embodiment, based on a limited-size suction device, by providing a breathable through hole 10 and a vacuum adsorption groove 1031, the through hole 10 is connected to the vacuum adsorption groove 1031 via a connecting groove 1032, so that the edge contour area of the thin glass can be adsorbed flatly on the surface of the conveyor belt 300 as a whole, so that the edge of the glass can be evenly and tightly attached to the conveyor belt 300, ensuring that the cutting force and the bending force can be effectively applied to the glass surface, avoiding the thin glass edge from bending and warping during cutting and bending, thereby facilitating the glass processing yield during cutting and bending operations.

[0103] When the thin glass is adsorbed on the transmission belt 300, under the action of negative pressure, the transmission belt 300 is also adsorbed on the surface of the template body 1. At this time, the template body 1 can support the thin glass, facilitating the subsequent cutting and bending operations.

[0104] It is easy to understand that when the glass needs to be transported on the conveyor belt 300, the suction device can be turned off so that there is no negative pressure between the template body 1, the conveyor belt 300 and the thin glass, and the glass can leave the cutting and bending station under the drive of the conveyor belt 300.

[0105] Specifically, the template body 1 has a first surface and a second surface facing each other along the thickness direction; the vacuum adsorption groove 1031 is formed to be recessed from the first surface to the second surface, and a connecting groove 1032 is formed between the vacuum adsorption groove 1031 and the through hole 10, and the connecting groove 1032 is recessed from the first surface to the second surface. The vacuum adsorption groove 1031 is connected to the through hole 10 of the vacuum through hole area 101 through the connecting groove 1032. When the suction area of the suction cup 21 of the suction platform 200 supporting the template 100 is limited, for example, when it cannot directly cover the area where the vacuum adsorption groove 1031 is located, the vacuum degree can be transferred to the vacuum air path area 103 where the vacuum adsorption groove 1031 is located through the vacuum through hole 10 and the connecting groove 1032. In this way, the function of providing suction force can be achieved using the existing suction platform 200. Of course, in the embodiment of the present application, it is not ruled out that the suction platform 200 is improved so that the adsorption area of the suction cup 21 can directly cover the area where the vacuum adsorption groove 1031 is located, or a set of suction devices for adsorbing the vacuum adsorption groove 1031 is added. In this way, there is no need to set a connecting groove 1032 between the vacuum adsorption groove 1031 and the vacuum through-hole area 101 where the through hole 10 is provided.

[0106] Specifically, the specific form of the connecting groove 1032 can be to set a through connecting groove 1032 along the front-to-back direction and the left-to-right direction of the support template 100, wherein one connecting groove 1032 extends from the upper vacuum adsorption groove 1031 through the middle vacuum through-hole 10 area to the lower vacuum adsorption groove 1031; the other connecting groove 1032 extends from the left vacuum adsorption groove 1031 through the middle vacuum connecting area to the right vacuum adsorption groove 1031.

[0107] The through hole 10 is connected to the vacuum adsorption groove 1031 through the above-mentioned connecting groove 1032, which is equivalent to the through hole 10, the connecting groove 1032 and the vacuum adsorption groove 1031 cooperating to form a large-area vacuum adsorption disk that can form a uniformly distributed suction force on the glass above through the perforated transmission belt 300. The vacuum adsorption disk can evenly transfer the negative pressure generated by the middle suction device to the entire lower surface of the glass, which not only makes the overall force on the lower surface of the glass uniform, but also can alleviate the concentrated suction effect of the suction cup 21 in the middle of the suction device on the glass, and can prevent the middle part of the glass from being sucked and deformed, that is, concave deformation downward.

[0108] Specifically, the depth of the vacuum adsorption groove 1031 is 30%-60% of the thickness of the support template 100, and the width of the groove is between 3mm-15mm. The depth D1 of the connecting groove 1032 is 30%-60% of the thickness of the support template 100, and the width of the groove is between 3mm-15mm.

[0109] In this embodiment, the vacuum adsorption groove 1031 and the connecting groove 1032 can be specifically configured as grooves of a certain width. The grooves can be elongated, with the length of the grooves being much greater than the width, thereby preventing the generation of a large concentrated suction force on the glass at the grooves, which could cause localized deformation of the glass. Specifically, the groove width can be relatively small, for example, the groove width of the vacuum adsorption groove 1031 or the connecting groove 1032 can be between 3 mm and 15 mm. This size ensures reliable transmission of the vacuum degree of the suction device while preventing localized deformation of the glass.

[0110] In order to ensure the strength of the support template 100 itself, the depth of the groove should not be too deep. At the same time, in order to ensure that there is enough space to form the groove, the depth of the vacuum adsorption groove 1031 can be about 30%-60% of the thickness of the support template 100; the depth of the connecting groove 1032 can be about 30%-60% of the thickness of the support template 100.

[0111] like Figure 6As shown, in this embodiment, the support template 100 further includes a lead support area 104. Specifically, the lead support area 104 can be disposed on the periphery of the template body 1. The lead support area 104 corresponds to the position supporting the cutting lead 402. The width of the lead support area 104 is between 3 mm and 8 mm, and the length of the lead support area 104 is not less than the length of the cutting lead 402.

[0112] Specifically, the template body 1 has a plurality of arc-shaped corners 41. For example, the template body 1 has four arc-shaped corners 41. The lead support area 104 may include the same number of lead support parts 1041 as the corners 41. When there are four corners 41, the number of the lead support parts 1041 may also be four. The lead support part 1041 extends outward along the normal direction of the corner 41 to form a narrow strip with a certain width. Specifically, the width of the lead support area 104 is between 3mm and 8mm, and the length of the lead support area 104 is not less than the length of the cutting lead 402. When the lead support part 1041 is designed to be a narrow strip, it can support the cutting of the opening line in this area without interfering with the downward pressure path of the bend, and does not affect the bending of the bend lever to generate an effective bend force.

[0113] Specifically, such as Figures 6 to 7 As shown, the lead support portion 1041 can be used to provide support for the thin glass to form the cutting lead 402, thereby preventing the thin glass from bending and deforming when forming the cutting lead 402, thereby causing failure to form the cutting lead 402; the existence of the cutting lead 402 can prevent the fracture generated when the thin glass is bent from spreading into the cutting contour line 401.

[0114] like Figure 5 As shown, in this embodiment, the openings 3 are continuously distributed along the length direction X of the transmission belt 300, and in the width direction Y of the transmission belt 300, the distribution positions of the openings 3 at least cover the width of the glass.

[0115] When the openings 3 on the conveyor belt 300 cover the width of the glass along its width direction Y, the openings 3 on the conveyor belt 300 can transmit the negative pressure in the vacuum air path area 103 to the lower surface of the glass, thereby generating a uniform suction force on the glass. For example, the distribution width of the openings 3 is ≥ 1400 mm. When the distribution width of the openings 3 is greater than 1400 mm and the distribution length is the entire length of the conveyor belt 300, the conveyor belt 300 is basically applicable to the processing of all automotive glass, with excellent versatility. The thickness of the conveyor belt 300 is between 1 mm and 2 mm.

[0116] Specifically, the diameter of the openings 3 is between 3 mm and 8 mm, and the distance between two adjacent openings 3 is between 20 mm and 50 mm.

[0117] When the aperture range of the openings 3 of the transmission belt 300 is 3mm-8mm, the hole spacing is 20mm-50mm, the distribution width is ≥1400mm, and they are continuously distributed in length, the openings 3 on the transmission belt 300 can be covered by the vacuum through-hole area 101 and the vacuum air path area 103 on the supporting template 100, thereby forming a connecting relationship, and the vacuum generated by the lowered suction device can be produced through the vacuum through-hole area 101, the vacuum air path area 103, and the openings 3 on the transmission belt 300 to the lower surface of the glass.

[0118] The cutting and bending device provided in the embodiment of the present application can be used for cutting and bending automotive glass with a thickness of less than 1.4 mm, especially large-size glass (length range is 700 mm-2000 mm, width range is 500 mm-1500 mm). In particular, through the structural improvement of the support template 100, the support template 100 is mainly formed with a vacuum through-hole area 101, a contour support area 102, a vacuum air path area 103 and a lead support area 104, which can better form a vacuum-sealed area between the suction device-support template 100-transmission belt 300-glass, thereby ensuring the overall flatness of the glass. The glass can be evenly adsorbed on the transmission belt 300, thereby improving the success rate of cutting and bending and ensuring the yield rate of large-size automotive thin glass processing.

[0119] Please refer to Figure 10 In an embodiment of the present application, a cutting and breaking edge method is further provided. The cutting and breaking edge method is performed using the above-mentioned cutting and breaking edge device. The cutting and breaking edge method may include the following steps:

[0120] Step S11: The original blank is transferred to the upper surface of the conveyor belt 300 so that the cutting contour line 401 of the original blank is centered and supported above the support template 100. The edge of the support template 100 evenly extends beyond the edge of the cutting contour line 401, and the corresponding cutting lead 402 is supported in the lead support area 104 of the support template 100.

[0121] Step S13: Turning on the suction device of the suction platform 200 so that the vacuum through-hole area 101 and the vacuum air passage area 103 of the support template 100 are adsorbed on the conveyor belt 300, and providing a uniform adsorption force to the original blank through the openings 3 on the conveyor belt 300;

[0122] Step S15: using a preset cutting tool and parameters, cutting the lead 402 and the contour line 401 of the original blank at a preset position;

[0123] Step S17: Press the edge material downward along the outer edge of the contour line and move along the preset edge breaking path 403 to complete the edge breaking.

[0124] In this embodiment, when the above-mentioned cutting and beveling device is used to perform the cutting and beveling method for cutting and beveling glass, the original glass blank (glass blank that has not been cut and beveling) is a rectangular structure. Specifically, the original glass blank has a length range of 700mm-2000mm, a width range of 500mm-1500mm, and a thickness of less than 1.4mm.

[0125] First, the rectangular blank to be cut can be placed on the transmission line for positioning. After the positioning of the blank is completed, the positioned blank can be sucked up and transferred to the upper surface of the transmission belt 300 of the cutting and bending table, so that the cutting contour line 401 is centered and supported above the support template 100, the edge of the support template 100 evenly exceeds the edge of the glass cutting contour line 401, and the corresponding cutting lead 402 position is supported on the lead support area 104 of the support template 100. The position of the support template 100 must correspond to the position of the glass cutting line contour and the opening line to ensure that there is a support template 100 under the transmission belt 300 to support the place where the glass is cut; in addition, ensuring that the bending contour line is outside the support template 100 can ensure that all places where the bending is pressed down can form a uniform lever of cutting line-template edge-bending point.

[0126] After the original blank is in place, the suction device of the suction platform 200 is turned on, so that the vacuum through-hole area 101 of the support template 100 corresponding to the middle position of the glass and the vacuum air path area 103 of the support template 100 corresponding to the edge position are adsorbed on the porous transmission belt 300; and a uniform adsorption force is provided to the original blank through the opening 3 on the transmission belt 300.

[0127] Through the porous design of the transmission belt 300 and the air path design of the support template 100, after the suction device in the middle area of the suction platform 200 is turned on, the vacuum adsorption force passes through the through hole 10 of the support template 100 and is evenly dispersed in the vacuum air path area 103 and the vacuum through hole area 101 of the support template 100, so that the central area and the edge area of the thin glass can be sucked tightly to the surface of the transmission belt 300 at the same time.

[0128] The lead wires 402 and the contour line 401 are cut at the preset positions of the original blank using a preset cutting tool and parameters; wherein the cutting tool can be a micro-tooth cutting wheel made of tungsten steel or diamond.

[0129] In this embodiment, since the original blank is evenly adsorbed and has better flatness, the order of cutting the lead 402 and cutting the contour line 401 is not restricted. The lead cutting step can be performed first, and then the contour line cutting step can be performed, or the contour line cutting step can be performed first, and then the lead cutting step can be performed.

[0130] After completing the cutting of the leads and the contour lines, the edge of the glass is pressed down using the preset edge breaking tool and parameters at the outer edge of the cutting contour line 401, and moved along the preset edge breaking path 403 to separate the edge and the glass contour to complete the edge breaking.

[0131] Specifically, after the cutting contour line 401 and the cutting lead 402 are completed, the edge bending mechanism separates the edge material outside the cutting contour line 401, and the edge bending pressure point is between 15mm and 35mm away from the cutting contour line 401. The edge bending tool can be a metal ball roller structure.

[0132] Specifically, in this embodiment, a cutting wheel and edge-breaking tool suitable for thin glass can be selected. The cutting and edge-breaking tool and cutting and edge-breaking force are selected and set based on the characteristics of thin glass, which is easily deformed and breakable. For example, thin glass cannot withstand the same cutting force as thick glass. Therefore, a low-angle micro-toothed wheel with higher hardness and higher penetration can be used to form an effective cutting line under conditions of lower cutting force. The preset parameters may include cutting force, edge-breaking force, and cutting and edge-breaking pattern.

[0133] After the edge bending is completed, the suction device of the suction platform 200 is released to suck up the cut and edged glass and transfer it to the subsequent edging or chamfering process. The edge material is transported to the edge material hopper or centralized processing station through the transmission belt 300 and waits for the next piece of glass to be transferred to the table.

[0134] like Figure 8 As shown, in one embodiment, the cutting lead 402 and the cutting contour line 401 are separately provided, the distance between one end of the cutting lead 402 close to the cutting contour line 401 and the cutting contour line 401 is between 0.5 mm and 1.5 mm, and the length of the cutting lead 402 is between 30 mm and 80 mm.

[0135] In this embodiment, when the cutting lead 402 and the cutting contour line 401 are set separately, it can be ensured that when the subsequent bending operation is performed, if the bending crack occurs, the direction of the crack extends away from the cutting contour line 401, and will not crack into the inside of the cutting contour line 401. This can effectively reduce the defective rate of the thin glass when bending the edge and improve the finished product rate of thin glass processing.

[0136] Specifically, the distance D2 from the cutting lead 402 to the cutting contour line 401 can be between 0.5mm and 1.5mm. When the cutting lead 402 and the cutting contour line 401 are within the above-mentioned smaller distance range, it can prevent the edges from splitting inward during bending. In addition, it can also ensure that there is no large-sized edge material residue or missing corners during bending, thereby affecting the subsequent edge grinding and chamfering processes.

[0137] The length of cutting wire 402 can be affected by various factors, including the thickness of the glass and the parameters of the cutting equipment. Generally, the thickness of the glass is directly proportional to the length of cutting wire 402. The thicker the glass, the longer the cutting wire 402 can be; the thinner the glass, the shorter the cutting wire 402 can be.

[0138] In this embodiment, the cutting outline 401 has a plurality of arc-shaped corners 41, and the number of the cutting leads 402 is the same as the number of the corners 41. The cutting leads 402 extend outward along the normal direction of the corners 41. For example, when the cutting outline 401 has four arc-shaped corners 41, the number of the cutting leads 402 is four.

[0139] If the cutting lead 402 deviates from the normal direction of the corner 41 of the cutting contour line 401, it is easy to cause problems such as difficulty in completing the edge bending on one side, edge cracking, and local edge material residue at the corner 41.

[0140] In the embodiment of the present application, the extension direction of the cutting lead 402 is the normal direction of the corner 41 of the cutting contour line 401, that is, the extension line of the cutting lead 402 passes through the center of the arc of the corner 41 of the cutting contour line 401. In this way, the above-mentioned problem is overcome, and when performing the edge bending operation, the edge bending operation can be achieved along both sides of the cutting lead 402. The glass obtained after edge bending is not prone to local residue at the corner 41, that is, the evaluation requirements of the edge bending process for the obtained glass can be reliably met, so as to enter the next edge grinding or chamfering process.

[0141] In a specific embodiment, taking a certain front windshield as an example, under the conditions of the cutting and beveling device of the present invention and two traditional cutting and beveling tables, the same parameters and tools are used to continuously cut, bend and grind to produce 100 pieces of glass with a thickness of 1.1 mm and 0.7 mm, respectively. The number of cracks, broken edges, chipped corners and broken residues is statistically shown in Table 1 below.

[0142] Table 1

[0143]

[0144] The technical results of the examples and comparative examples demonstrate that the cutting and edge-bending device of the present invention can achieve a 98%-99% yield rate for processing large-sized automotive thin glass. In contrast, conventional Bystronic countertops have an 11% defect rate for processing large-sized glass (1.1mm) and a 23% defect rate for processing large-sized glass (0.7mm). Conventional Bando countertops have an even higher defect rate, at 26% for processing 1.1mm glass and a 69% defect rate for processing large-sized glass (0.7mm).

[0145] The above are only a few embodiments of the present invention. Although the embodiments disclosed in the present invention are as above, the contents are only embodiments adopted to facilitate understanding of the present invention and are not intended to limit the present invention. Any person skilled in the art of the present invention may make any modifications and changes in the form and details of the embodiments without departing from the spirit and scope disclosed in the present invention. However, the scope of patent protection of the present invention shall still be based on the scope defined by the appended claims.

Claims

1. A supporting formwork, characterized in that: The supporting template comprises: A template body, wherein the outline of the template body is configured to conform to the cutting outline of the glass as a whole, and the edge of the template body extends beyond the edge of the cutting outline of the glass by a predetermined dimension and is smaller than the size of the glass edge to be cut; At least one through hole is provided in the middle of the template body, forming a vacuum through hole area for communicating with the suction device; The template body has a contour support area outside the vacuum through-hole area, and the projection of the cutting contour line toward the template body is located in the contour support area; A vacuum air passage area is formed on the inner side of the template body at a position corresponding to the cutting contour line, and the vacuum air passage area is provided with a vacuum adsorption groove.

2. The support formwork according to claim 1, characterized in that: The vacuum through-hole area can at least cover the suction range of the suction device. The through-hole has relative length and width dimensions. The through-hole is a long strip-shaped through-hole with a length dimension greater than a width dimension. The number of the through-holes is more than two, and the multiple through-holes are spaced apart along the width direction.

3. The support formwork according to claim 1, characterized in that: The number of the through holes is more than two, and the end positions of two adjacent through holes in the length direction are staggered.

4. The support formwork according to claim 2, characterized in that: The length dimension of the through hole is between 50mm-200mm, the width dimension is between 5mm-15mm, and the distance between two adjacent through holes in the width direction is between 5mm-20mm.

5. The supporting formwork according to claim 1, wherein: The template body has a first surface and a second surface relative to each other along the thickness direction; the vacuum adsorption groove is formed by being recessed from the first surface to the second surface, and a connecting groove is formed between the vacuum adsorption groove and the through hole, and the connecting groove is formed by being recessed from the first surface to the second surface.

6. The supporting formwork according to claim 5, characterized in that: The concave depth of the vacuum adsorption groove is 30%-60% of the thickness of the support template, and the concave width is between 3mm and 15mm.

7. The supporting formwork according to claim 5, characterized in that: The depth of the connecting groove is 30%-60% of the thickness of the supporting template, and the width of the groove is between 3mm and 15mm.

8. The supporting formwork according to claim 1, wherein: The outer contour edge of the vacuum air path area is retracted 10 mm to 50 mm relative to the cutting contour line.

9. The support formwork according to claim 1, wherein: A lead wire support area is further provided on the periphery of the template body. The lead wire support area includes a plurality of lead wire support portions. The plurality of lead wire support portions extend outward from the edge of the template body and are used to be provided corresponding to the cutting leads of the glass to be cut.

10. The support formwork according to claim 9, wherein: The width of the lead support area is between 3 mm and 8 mm, and the length of the lead support area is not less than the length of the cutting lead.

11. The support formwork according to claim 1, wherein: The thickness of the support template is between 1.5mm and 3mm.

12. The support formwork according to claim 1, wherein: The predetermined size is between 2 mm and 8 mm.

13. A cutting and breaking device, characterized in that: The cutting and beveling device includes a supporting template as described in any one of claims 1 to 12, and a suction platform provided with a suction device, and a transmission belt provided with multiple openings. The transmission belt, the supporting template and the suction device are stacked and fitted in sequence from top to bottom, and the openings on the transmission belt are used to communicate with the vacuum through-hole area and the vacuum air path area.

14. The cutting and breaking device according to claim 13, characterized in that: The openings are continuously distributed along the length direction of the transmission belt, and in the width direction of the transmission belt, the distribution positions of the openings at least cover the width of the glass.

15. The cutting and breaking device according to claim 14, characterized in that: The aperture of the opening is between 3mm and 8mm, and the distance between two adjacent openings is between 20mm and 50mm.

16. The cutting and breaking device according to claim 13, characterized in that: The suction device has a suction cup, the diameter of which is between 200mm and 400mm, the vacuum degree of the suction device is between -0.06MPa and -0.1MPa, and the vacuum degree of the suction device can be transmitted to the lower surface of the glass to be cut through the vacuum through-hole area and the vacuum air path area.

17. A cutting and breaking method, characterized in that: The cutting and breaking edge method is performed using the cutting and breaking edge device according to claim 13, and the cutting and breaking edge method includes: The original blank is transferred to the upper surface of the conveyor belt so that the cutting contour line of the original blank is centered and supported above the support template, the edge of the support template evenly exceeds the edge of the cutting contour line, and the corresponding cutting lead position is supported in the lead support area of the support template; Turning on the suction device of the suction platform so that the vacuum through-hole area and the vacuum air passage area of the support template are adsorbed on the conveyor belt, and providing uniform adsorption force to the original blank through the openings on the conveyor belt; Using preset cutting tools and parameters, cutting leads and cutting contours on the original blank at preset positions; The edge material is pressed down along the outer edge of the contour line and moved along the preset edge breaking path to complete the edge breaking.

18. The cutting and breaking method according to claim 17, wherein: The length of the original sheet blank ranges from 700 mm to 2000 mm, the width ranges from 500 mm to 1500 mm, and the thickness is less than 1.4 mm.

19. The cutting and breaking method according to claim 17, wherein: The cutting lead and the cutting contour line are separately provided, the distance between one end of the cutting lead close to the cutting contour line and the cutting contour line is between 0.5 mm and 1.5 mm, and the length of the cutting lead is between 30 mm and 80 mm.

20. The cutting and breaking method according to claim 19, wherein: The cutting contour line has a plurality of arc-shaped corners, the number of the cutting leads is the same as the number of the corners, and the cutting leads are extended outward along the normal direction of the corners.

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