Liquid crystal glass cold roll forming mechanism
By using profiling fixtures, flexible fittings and vacuum technology in the cold bending forming technology of LCD glass, the problems of on-board LCD glass forming accuracy and efficiency are solved, and an efficient and accurate cold bending forming process is achieved.
Patent Information
- Application Number
- CN202421039880.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-14
AI Technical Summary
The existing automotive LCD glass cold bending technology has limitations in the accuracy of forming complex curved surfaces, and the equipment and process operations are complex, which increases labor costs and reduces production efficiency.
Using profiling fixtures and flexible fittings, combined with vacuum technology and tensioning units, the pretension of the flexible fittings is adjusted through components such as tensioning wheels, connecting plates, elastic parts, tensioning rods, adjustment screws and locking plates. , in conjunction with the downward pressing action of the profiling fixture, seamless fit and cold bending forming of the liquid crystal glass are achieved.
It improves the accuracy and efficiency of liquid crystal glass forming, ensures consistency of the forming process and product quality, reduces labor costs and improves production efficiency.
Smart Images
Figure CN222226177U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cold-bending glass, in particular to a cold-bending forming mechanism for liquid crystal glass. Background Art
[0002] With the rapid development of the automotive industry, the in-vehicle infotainment system has become an important part of modern automotive design. In particular, the use of integrated screens is becoming more and more common in the center console design. These integrated screens usually use liquid crystal glass (LCD Glass), which needs to have a certain curved shape to adapt to the streamlined design of the vehicle interior while providing better visual effects and user experience. The technical fields involved in the manufacture of automotive LCD glass include high-precision glass processing, curved surface forming, chemical strengthening treatment, and the integration of glass with other electronic components. With the increasing demand for automotive intelligence and personalization, higher requirements are placed on the shape and performance of automotive LCD glass.
[0003] The existing forming technologies for automotive LCD glass mainly include hot bending and cold bending. Hot bending technology uses a mold to form the glass after heating it to a certain temperature, while cold bending technology uses mechanical force to form the curved surface without heating the glass. Although hot bending technology is relatively mature in glass forming, the hot bending process requires processing the glass at high temperatures, which not only consumes a lot of energy, but also may affect the internal stress distribution of the glass, resulting in unqualified quality and performance of the final product. Cold bending technology will not affect the intrinsic quality and performance of the glass, but it has limitations in the accuracy of forming complex curved surfaces, especially for large-sized or highly curved automotive LCD glass, it is difficult to achieve the accuracy required by the design; and the forming equipment and process operations are complex, requiring experienced operators to perform fine control, which not only increases labor costs but also leads to reduced production efficiency. Utility Model Content
[0004] The purpose of the utility model is to provide a liquid crystal glass cold bending forming mechanism to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liquid crystal glass cold bending forming mechanism, comprising a profiling jig and a flexible bonding piece, and a tensioning unit for adjusting the pre-tension of the flexible bonding piece and cooperating with the profiling jig to cold bend the liquid crystal glass, the profiling jig being located above the flexible bonding piece, and the tensioning unit being arranged at the end of the flexible bonding piece.
[0006] The following improvements are made in the present application: a fixing unit is provided under the flexible fitting, and the fixing unit includes a bracket, a pair of rollers arranged at the top ends of both sides of the bracket, and bearing seats installed at both ends of the rollers. The two ends of the flexible fitting are respectively connected to the tensioning unit by passing around the rollers.
[0007] The following improvements are made in the present application: the tensioning unit includes a tensioning wheel, a connecting plate, an elastic member, a tensioning rod, an adjustment screw and a locking plate arranged in sequence from top to bottom, the inner side of the tensioning wheel is in contact with the flexible fitting, and the connecting plate is connected and fixed to the end of the flexible fitting.
[0008] The following improvements are made in the present application: a mounting seat is provided on the tensioning wheel, a connecting shaft is provided on one side of the mounting seat, the tensioning wheel is mounted on the connecting shaft and connected to the mounting seat, connecting blocks are provided at both ends of the mounting seat, and sliding grooves are provided on the inner sides of the two connecting blocks, and the mounting seat is slidably installed in the sliding grooves.
[0009] The following improvements are made in the present application: a plurality of through holes are opened on the connecting plate, one end of the elastic member is connected to the through hole, and the other end is connected to the tensioning rod, a plurality of tensioning connecting blocks are sleeved on the tensioning rod, a screw fixing block is sleeved on the adjusting screw, the tensioning connecting block is connected to the screw fixing block, and the lower end of the adjusting screw is connected to the locking plate, and by adjusting the position of the locking plate and the adjusting screw, the screw fixing block, the tensioning connecting block and the tensioning rod are driven to move together to adjust the elasticity.
[0010] The following improvements are made in the present application: a detection unit is provided on the bracket below the flexible adhesive member, and the detection unit includes a pair of fixed sheet metals connected to the bracket and a detection sensor disposed between the pair of fixed sheet metals. When the profiling jig is pressed down to a certain height, the detection sensors on both sides detect the pressing depth to ensure the consistency of the cold bending pressure of the product.
[0011] The following improvement is made in the solution of the present application: a slot is opened on the fixed sheet metal, a bolt is installed in the slot, and the position of the fixed sheet metal is adjusted in the height direction through the bolt and the slot.
[0012] The following improvements are made in the present application: the lower end face of the profiling jig is arranged in an arc-shaped structure, and the lower end face includes a central suction cup adsorption area, two side suction cup areas, an edge adsorption area and a surface suction vacuum groove; the side of the profiling jig is provided with a suction cup vacuum connection groove and a surface suction vacuum connection groove, and a plurality of FPC suction cups are provided at one end of the side of the profiling jig away from the lower end face. The profiling jig is designed according to the specific curved surface of the vehicle-mounted liquid crystal glass to ensure that the shape of the final product can be accurately simulated when pressed down; when the jig is pressed down, the flexible bonding piece can seamlessly bond and wrap the cold-bent jig to form the required glass curved surface, and a vacuum is established between the profiling jig and the liquid crystal glass to improve the bonding force of the flexible bonding piece to the glass and prevent the glass from moving or deforming during the forming process.
[0013] Compared with the prior art, the utility model provides a liquid crystal glass cold bending forming mechanism, which has the following beneficial effects:
[0014] The utility model adopts vacuum technology to enhance the bonding force between the profiling jig and the glass, ensures the accuracy and efficiency of the forming process, and achieves seamless bonding and cold bending of the liquid crystal glass by tensioning the flexible bonding piece to give it a certain pre-tension, and then cooperating with the downward pressing action of the profiling jig. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 It is a schematic diagram of the connection between the tensioning unit and the flexible fitting in the utility model;
[0018] Figure 3 It is a structural schematic diagram of the tensioning unit in the utility model;
[0019] Figure 4 It is a structural schematic diagram of the profiling fixture in the utility model. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0022] Example
[0023] like Figure 1-4As shown, a liquid crystal glass cold bending forming mechanism is mainly composed of a profiling jig 1, a flexible bonding piece 2 and a tensioning unit 3; the profiling jig 1 is located above the flexible bonding piece 2, and is designed according to the specific curved surface of the vehicle-mounted liquid crystal glass to ensure that the shape of the final product can be accurately simulated when pressed down, the lower end surface of the profiling jig 1 is arranged in an arc-shaped structure, and a central suction cup adsorption area 11 is arranged in the middle of the length direction of the arc surface, and two side suction cup areas 12 and edge adsorption areas 13 are symmetrically arranged from the central suction cup adsorption area 11 to both ends, and the two side suction cup areas 12 are arranged in an arc-shaped structure. A surface suction vacuum groove 14 is provided on the part, and a suction cup vacuum connecting groove 15 and a surface suction vacuum connecting groove 16 are arranged in parallel on the side of the profiling jig 1 along the length direction, and four FPC suction cups 17 are provided on the end of the side of the profiling jig 1 away from the lower end face, and the four FPC suction cups 17 are also arranged at equal intervals along the length direction. A vacuum is established between the profiling jig 1 and the liquid crystal glass to improve the bonding force of the flexible bonding part 2 to the glass and prevent the glass from moving or deforming during the forming process. The selection of the vacuum pump and sealing technology can ensure that a stable negative pressure is maintained throughout the cold bending process. During use, after the entire profiling action begins, the center suction cup adsorption area 11 first contacts the liquid crystal glass and establishes a vacuum to suppress the displacement of the cold-bent glass. The profiling jig 1 moves further downward, and the suction cup areas 12 on both sides contact the liquid crystal glass and establish a vacuum. The profiling jig 1 moves downward further, and the edge adsorption area 13 contacts the liquid crystal glass and establishes a vacuum. At this time, the liquid crystal glass is completely in contact with the profiling jig 1, and the surface suction vacuum groove 14 is opened to increase the contact force between the liquid crystal glass and the profiling jig 1 to prevent rebound. At the same time, the FPC suction cup 17 contacts the FPC on the liquid crystal glass and establishes a vacuum. After maintaining the position here for several seconds, the profiling jig 1 moves upward with the cold-bent glass to complete the cold bending action.
[0024] The flexible fitting member 2 is made of a belt, which has high elasticity and wear resistance and can adapt to the curved surfaces of liquid crystal glass of different shapes; and a fixing unit 4 is provided below the flexible fitting member 2 as the frame base of the mechanism, and the fixing unit 4 is composed of a bracket 41, a pair of rollers 42 arranged at the top ends of both sides of the bracket 41, and bearing seats 43 installed at both ends of the rollers 42;
[0025] The tensioning unit 3 is used to adjust the pre-tension of the belt and cooperate with the profiling fixture 1 to perform cold bending on the liquid crystal glass. The two ends of the belt are respectively connected to the tensioning unit 3 by passing around the roller 42, including a tensioning wheel 31, a connecting plate 32, an elastic member 33, a tensioning rod 34, an adjustment screw 35 and a locking plate 36 arranged in sequence from top to bottom; wherein, the inner side of the tensioning wheel 31 is in contact with the flexible fitting member 2, the connecting plate 32 is connected and fixed to the end of the flexible fitting member 2, and a mounting seat 311 is provided on the tensioning wheel 31, and a connecting shaft is provided on the side of the mounting seat 311 close to the belt, and the tensioning wheel 31 is connected to the mounting seat 311 by putting the tensioning wheel 31 on the connecting shaft; connecting blocks 312 are respectively provided at both ends of the mounting seat 311, and sliding grooves are provided on the inner sides of the two connecting blocks 312, and the mounting seat 311 is slidably installed in the sliding grooves so that the mounting seat 311 can be in the sliding grooves of the connecting blocks 312 The belt is moved back and forth, and a spring is installed in the slide groove of the connecting block 312, so that the tension wheel 31 always tensions the belt; a plurality of through holes are opened on the connecting plate 32, one end of the elastic member 33 is connected to the through hole, and the other end is connected to the tensioning rod 34, and the elastic member 33 can be a spring or an elastic cylinder, which provides a certain tensioning force to the belt through elastic connection, so that it can overcome gravity and keep horizontal; eight tensioning connecting blocks 341 are sleeved on the tensioning rod 34, which are evenly distributed, and a screw fixing block 351 is sleeved on the adjusting screw 35, and the inner side of the tensioning connecting block 341 is connected to the inner side of the screw fixing block 351 through a plate, and the lower end of the adjusting screw 35 passes through the locking plate 36, and is connected and fixed to the locking plate 36 through a nut, and by adjusting the position of the locking plate 36 and the adjusting screw 35, the screw fixing block 351, the tensioning connecting block 341 and the tensioning rod 34 are driven to move together to adjust the elasticity;
[0026] Furthermore, a detection unit 5 is provided on the bracket 41 located below the flexible fitting 2, and the detection unit 5 includes a pair of fixed sheet metals 51 connected to the bracket 41 and a detection sensor 52 arranged between the pair of fixed sheet metals 51; a slot 53 is opened on the fixed sheet metal 51, and a bolt is installed in the slot 53, and the fixed sheet metal 51 is connected to the bracket 41 through the bolt and the slot 53, and the position of the fixed sheet metal 51 in the height direction is adjusted, and the pressing depth of the profiling jig 1 is detected by the detection sensor 52 fixedly installed on the top of the fixed sheet metal 51 to ensure the stability of product quality.
Claims
1. A liquid crystal glass cold bending forming mechanism, characterized in that: The invention comprises a profiling jig (1) and a flexible bonding piece (2), and a tensioning unit (3) for adjusting the pre-tension of the flexible bonding piece (2) and cooperating with the profiling jig (1) to perform cold bending on the liquid crystal glass, wherein the profiling jig (1) is located above the flexible bonding piece (2), and the tensioning unit (3) is arranged at the end of the flexible bonding piece (2).
2. A liquid crystal glass cold bending forming mechanism according to claim 1, characterized in that: A fixing unit (4) is provided below the flexible fitting member (2), and the fixing unit (4) comprises a bracket (41), a pair of rollers (42) arranged at the top ends of both sides of the bracket (41), and bearing seats (43) installed at both ends of the rollers (42). The two ends of the flexible fitting member (2) are respectively connected to the tensioning unit (3) by passing around the rollers (42).
3. A liquid crystal glass cold bending forming mechanism according to claim 2, characterized in that: The tensioning unit (3) comprises a tensioning wheel (31), a connecting plate (32), an elastic member (33), a tensioning rod (34), an adjusting screw (35) and a locking plate (36) which are arranged in sequence from top to bottom. The inner side of the tensioning wheel (31) is in contact with the flexible fitting member (2), and the connecting plate (32) is connected and fixed to the end of the flexible fitting member (2).
4. The liquid crystal glass cold bending forming mechanism according to claim 3, characterized in that: The tension wheel (31) is provided with a mounting seat (311), one side of the mounting seat (311) is provided with a connecting shaft, the tension wheel (31) is sleeved on the connecting shaft to form a connection with the mounting seat (311), two ends of the mounting seat (311) are provided with connecting blocks (312), the inner sides of the two connecting blocks (312) are provided with sliding grooves, and the mounting seat (311) is slidably installed in the sliding grooves.
5. The liquid crystal glass cold bending forming mechanism according to claim 4, characterized in that: The connecting plate (32) is provided with a plurality of through holes, one end of the elastic member (33) is connected to the through hole, and the other end is connected to the tensioning rod (34), a plurality of tensioning connecting blocks (341) are sleeved on the tensioning rod (34), a screw fixing block (351) is sleeved on the adjusting screw (35), the tensioning connecting block (341) is connected to the screw fixing block (351), and the lower end of the adjusting screw (35) is connected to the locking plate (36), and by adjusting the position of the locking plate (36) and the adjusting screw (35), the screw fixing block (351), the tensioning connecting block (341) and the tensioning rod (34) are driven to move together to adjust the elasticity.
6. The liquid crystal glass cold bending forming mechanism according to claim 2, characterized in that: A detection unit (5) is provided on the bracket (41) located below the flexible adhesive member (2), and the detection unit (5) comprises a pair of fixed sheet metals (51) connected to the bracket (41), and a detection sensor (52) arranged between the pair of fixed sheet metals (51).
7. The liquid crystal glass cold bending forming mechanism according to claim 6, characterized in that: The fixed sheet metal (51) is provided with a slot hole (53), in which a bolt is installed, and the position of the fixed sheet metal (51) in the height direction is adjusted by means of the bolt and the slot hole (53).
8. The liquid crystal glass cold bending forming mechanism according to claim 1, characterized in that: The lower end surface of the profiling jig (1) is arranged in an arc-shaped structure, and the lower end surface comprises a central suction cup adsorption area (11), two side suction cup areas (12), an edge suction area (13) and a surface suction vacuum groove (14); a suction cup vacuum connection groove (15) and a surface suction vacuum connection groove (16) are provided on the side of the profiling jig (1), and a plurality of FPC suction cups (17) are provided on one end of the side of the profiling jig (1) away from the lower end surface.