Columnar glass forming device and columnar glass forming equipment

Abstract

The utility model relates to a columnar glass forming device and equipment, the forming device comprises an inner mold forming mechanism and an outer mold forming mechanism, the inner mold forming mechanism comprises a mold frame, the inner mold forming mechanism is provided with a columnar inner forming surface, the central angle of the columnar inner forming surface is larger than 180 degrees, and the columnar inner forming surface is matched with the shape of the inner surface of target columnar glass; the roller way forming mechanism comprises an arc changing mechanism and a roller way set, and the arc changing mechanism is used for conducting arc changing on the roller way set to form a columnar outer forming face with the central angle larger than 180 degrees. The forming equipment with the forming device can be used for bending and forming columnar glass with the central angle larger than 180 degrees or smaller than or equal to 180 degrees.

Description

Technical Field

[0001] The utility model belongs to the field of glass processing, and in particular relates to a columnar glass forming device and forming equipment. Background Art

[0002] In the prior art, cylindrical curved glass with small openings, such as cylindrical curved glass with a central angle greater than 180°, Fig.17 As shown in the figure, all of them are small-sized and small-radius columnar glasses. This type of glass is generally formed by hot bending molds, which require the cooperation of upper and lower molds to form the glass. Different upper and lower molds need to be replaced for glass forming with different radii, which results in high equipment cost and low production efficiency.

[0003] For cylindrical glass with larger openings, such as Fig.16 The cylindrical glass with a center angle less than 180° shown is usually formed by a roller bending device, which is difficult to form cylindrical bent glass with a center angle greater than 180°.

[0004] Therefore, it is necessary to provide a columnar glass forming device that can take into account the bending and forming of the above two types of columnar glasses, especially the bending and forming of large-sized, small-opening architectural columnar glasses. Utility Model Content

[0005] The utility model aims to provide a columnar glass forming device and forming equipment, which can take into account the bending forming of columnar glass with a central angle greater than or equal to 180° or less than 180° and facilitate the discharging of glass.

[0006] A columnar glass forming device comprises an inner mold forming mechanism and a roller forming mechanism, wherein the inner mold forming mechanism comprises a mold frame, and the inner mold forming mechanism has a columnar inner forming surface with a central angle greater than 180° that matches the shape of the inner surface of the target columnar glass;

[0007] The roller forming mechanism comprises an arc changing mechanism and a roller group. The arc changing mechanism is used to change the roller group into an arc to form a cylindrical outer forming surface with a central angle greater than 180 degrees.

[0008] The beneficial effect is that the utility model forms columnar glass with a central angle greater than 180° by wrapping a roller forming mechanism that forms a columnar outer forming surface with a central angle greater than 180° after a variable arc around an inner mold forming mechanism with a columnar inner forming surface with a central angle greater than 180°, thereby enabling the utility model to take into account the bending forming of columnar glass with a central angle greater than 180° or less than or equal to 180°.

[0009] Furthermore, the mold frame is a columnar cylinder structure, and the columnar cylinder structure is a cylindrical cylinder, a semi-cylindrical cylinder with a central angle of α, an elliptical cylinder or a semi-elliptical cylinder with a central angle of α, 180°<α<360°.

[0010] Its beneficial effects: a more specific and practical columnar barrel structure is proposed, which is more feasible. The diversification of the columnar barrel structure allows customers to choose according to the target glass shape and actual conditions. The columnar barrel structure can be used directly for molding, or as the installation basis for molding components or heat-resistant parts.

[0011] Furthermore, the inner mold forming mechanism also includes a forming component or a heat-resistant part arranged on the mold frame; when the forming component is arranged on the mold frame, the forming component is fitted into the columnar inner forming surface; when the heat-resistant part is arranged on the mold frame, the columnar inner forming surface is formed by the surface of the heat-resistant part.

[0012] Its beneficial effects: the outer side of the mold frame forms a columnar inner molding surface through a molding component or a heat-resistant part, and the quality of glass molding is higher.

[0013] Further, the forming assembly includes a plurality of rollers arranged on the outside of the mold frame, the plurality of rollers are fitted to form the cylindrical inner forming surface, and the length direction of the rollers is parallel to the generatrix direction of the cylindrical inner forming surface; or the forming assembly includes a plurality of rollers arranged on the outside of the mold frame, the plurality of rollers are fitted to form the cylindrical inner forming surface, and the generatrix direction of the rollers is parallel to the generatrix direction of the cylindrical inner forming surface.

[0014] The beneficial effects are as follows: two preferred compositions and arrangements of the molding components are provided, the selection is more flexible, and the durability is better.

[0015] Furthermore, the conveying direction of the glass into the forming device is perpendicular to the generatrix direction of the columnar inner forming surface.

[0016] Its beneficial effect: With this arrangement, the continuity of glass production is better.

[0017] Furthermore, the forming assembly includes a plurality of flexible shaft rollers spaced apart along the outer side of the mold frame, the flexible shaft rollers are wound around the mold frame, and the plurality of flexible shaft rollers are fitted into a columnar inner forming surface.

[0018] Its beneficial effects: providing another structure of the molding component, making the selection more flexible.

[0019] Furthermore, the mold frame is an integrated structure.

[0020] Its beneficial effects: the integrated structure is stable and more durable.

[0021] Furthermore, the mold frame includes two or more mold frame units.

[0022] Its beneficial effects: the structure has better flexibility and can also achieve the purpose of the utility model.

[0023] Furthermore, it also includes a movable slide, the inner mold forming mechanism is arranged on the movable slide, and the movable slide can drive the inner mold forming mechanism to move along the generatrix direction of the columnar glass to achieve the separation of the inner mold forming mechanism and the columnar glass.

[0024] Its beneficial effects are as follows: the movable slide table can realize the separation of the inner mold forming mechanism from the columnar glass, and has good stability.

[0025] Furthermore, the number of the inner mold forming mechanisms is two, and the two inner mold forming mechanisms are coaxially arranged, and the two inner mold forming mechanisms are respectively arranged on two movable slides, and the two movable slides are located on both sides of the forming device.

[0026] Its beneficial effects: It is suitable for molding columnar glass with large size in the generatrix direction, avoiding sagging deformation of an inner mold molding mechanism due to its center of gravity offset and heavy glass weight, thereby affecting the glass molding accuracy.

[0027] Furthermore, the mold frame is connected to a lifting mechanism, wherein the two or more mold frame units are movably connected and can be opened and closed; or each mold frame unit is respectively connected to a lifting mechanism.

[0028] The beneficial effect is that the mold frame can be vertically moved out from the cylindrical opening of the columnar glass, providing another way for the inner mold forming mechanism to be separated from the glass.

[0029] Furthermore, the heat-resistant member is a heat-resistant cloth or aramid rope covering the surface of the mold frame.

[0030] Its beneficial effects: providing two specific structures of heat-resistant parts.

[0031] Furthermore, the inner mold forming mechanism is located at the upper part of the roller forming mechanism, or the inner mold forming mechanism is located at the lower part of the roller forming mechanism.

[0032] The beneficial effects are as follows: two arrangement structures are provided for positive bending and reverse bending of glass.

[0033] Furthermore, the arc-changing mechanism is an arc-changing mechanism capable of pulling up the arc or a jacking-type arc-changing mechanism.

[0034] The beneficial effects thereof are as follows: the invention provides different structural options for the arc-changing mechanism, and the practicability is stronger.

[0035] Furthermore, the arc-changing mechanism capable of pulling and starting an arc comprises two pulling ends, each of which is connected to a pulling motor via a chain pulling assembly, and the two pulling motors and the corresponding connected pulling ends are cross-arranged.

[0036] The beneficial effect is that it provides an arc-changing mechanism arrangement that can realize a cylindrical forming surface with a central angle greater than 180°.

[0037] The utility model also provides a columnar glass forming device, which comprises a heating device and a forming device which are arranged in sequence, and the forming device adopts the columnar glass forming device mentioned above.

[0038] Its beneficial effects: the molding equipment can realize the heating and molding of glass.

[0039] Furthermore, there are multiple inner mold forming mechanisms, and the multiple inner mold forming mechanisms respectively form columnar structures with different set curvatures, which can be replaced according to different target glass radii.

[0040] Its beneficial effects: it can realize the molding of glass with different radii, can reduce equipment investment, and realize the molding of glass with more specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the structure of the molding device in Example 1;

[0042] Figure 2 It is a structural side view of the molding device in Example 1;

[0043] Figure 3 It is a structural side view of the molding device in Example 2;

[0044] Figure 4 It is a schematic diagram of the first structure of the inner mold forming mechanism in Example 3;

[0045] Figure 5 is a schematic diagram of a second structure of the inner mold forming mechanism in Example 3;

[0046] Figure 6 Schematic diagram of the roller forming mechanism and the inner mold forming mechanism in Example 3 before glass forming;

[0047] Figure 7 Schematic diagram of the roller forming mechanism and the inner mold forming mechanism in Example 3 during glass forming;

[0048] Figure 8 It is a structural schematic diagram of the inner mold forming mechanism in Example 4;

[0049] Fig. 9 It is a schematic structural diagram of the molding device in Example 5;

[0050] Fig.10 Taking the left inner mold forming mechanism as an example in Example 5, a schematic diagram of the position state of the left inner mold forming mechanism during glass forming;

[0051] Fig.11 Taking the left inner mold forming mechanism as an example in Example 5, the schematic diagram of the position state of the left inner mold forming mechanism after the glass is formed and removed;

[0052] Fig.12 This is a schematic diagram of the first structure of the inner mold forming mechanism in Example 6;

[0053] Fig.13 is a schematic diagram of a second structure of the inner mold forming mechanism in Example 6;

[0054] Fig.14 is a third structural schematic diagram of the inner mold forming mechanism in Example 6;

[0055] Fig.15 It is a schematic diagram of the roller forming mechanism and the inner mold forming mechanism in Example 8 before glass forming;

[0056] Fig.16 It is a schematic diagram of a common large-opening cylindrical curved glass;

[0057] Fig.17 A schematic diagram of a small-opening columnar glass formed by the utility model;

[0058] Markings in the figure: 1. Frame, 2. Inner mold forming mechanism, 201. Mold frame, 201-1. Cylindrical cylinder, 201-2. Elliptical cylinder, 201-3. Mold frame unit, 202. Hard shaft roller, 203. Support seat, 204. Columnar inner molding surface, 3. Roller forming mechanism, 4. Chain lifting assembly, 5. Left movable slide, 6. Left ground rail, 7. Right movable slide, 8. Right ground rail, 9. Columnar glass. DETAILED DESCRIPTION

[0059] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention in any way.

[0060] Example 1: Figure 1 and Figure 2 As shown, a columnar glass forming device includes an inner mold forming mechanism 2 and a roller forming mechanism 3; the inner mold forming mechanism 2 includes a mold frame 201, and the inner mold forming mechanism 2 has a columnar inner forming surface with a central angle greater than 180° and a shape that matches the inner surface of the target columnar glass; the roller forming mechanism 3 includes an arc changing mechanism and a roller group, and the arc changing mechanism can change the roller group into an arc to form a columnar outer forming surface with a central angle greater than 180°.

[0061] The roller forming mechanism 3 which forms a cylindrical outer forming surface with a central angle greater than 180° through a variable arc is wrapped around the inner mold forming mechanism 2 which forms a cylindrical inner forming surface with a central angle greater than 180° to form a cylindrical glass with a central angle greater than 180°; the same action can also be used to form a cylindrical glass with a central angle less than or equal to 180°, so that the forming device can take into account the bending forming of cylindrical glass with a central angle greater than 180° or less than or equal to 180°.

[0062] The central angle of the cylindrical glass is based on the shape of a cross section of the cylindrical glass. The angle enclosed by its shape is as follows: Fig.16 , Fig.17 As shown, the central angles thereof are respectively less than 180° and greater than 180°.

[0063] Embodiment 2: Based on Embodiment 1, Figure 3 As shown, a columnar glass forming device, a roller forming mechanism 3 is arranged on a frame 1 of the forming equipment, and the roller forming mechanism 3 is located below the inner mold forming mechanism 2.

[0064] The mold frame 201 is a columnar barrel structure. Preferably, the columnar barrel structure is a cylindrical barrel 201-1. Figure 4 The cylindrical tube 201-1 shown in FIG. 201-1 may be selected in other embodiments according to the shape of the target glass. For example, a semi-cylindrical tube with a central angle of α, 180°<α<360° may be used. Figure 5 The elliptical cylinder 205 shown in the figure can also be a semi-elliptical cylinder with a central angle of α, 180°<α<360°. In the specific selection of α, it is sufficient to satisfy that α is greater than the central angle of the target glass cylinder. Preferably, the cylindrical cylinder structure is an integrated structure, which is more practical, durable and stable. More preferably, the cylindrical cylinder structure adopts a hollow design to reduce the weight of the inner mold molding mechanism 2.

[0065] The arc-changing mechanism of the roller forming mechanism 3 is an arc-changing mechanism that can be pulled up to start an arc, specifically a chain-plate type arc-changing mechanism that can be pulled up and is commonly used in the art. The roller group includes a plurality of conveying rollers, and the ends of the conveying rollers are connected to the chain-plate type arc-changing mechanism that can be pulled up and started. The arc-changing mechanism that can be pulled up and started an arc includes two pulling ends. Specifically, the two lifting ends of the liftable chain plate type arc changing mechanism are respectively connected to a chain lifting assembly 4 on the frame 1, and the chain lifting assembly 4 pulls the lifting end, and drives the roller forming mechanism 3 to bend and form by bending the liftable chain plate type arc changing mechanism. The chain lifting assembly 4 uses a different-side lifting method to lift the lifting end of the liftable chain plate type arc changing mechanism. Each lifting end is connected to a chain lifting assembly. Each chain lifting assembly and the corresponding connected lifting end are cross-arranged, that is, the chains used for lifting are cross-arranged to increase the bendable central angle of the roller forming mechanism 3, forming a cylindrical outer forming surface with a central angle greater than 180°, so as to facilitate the formation of an outer forming surface that matches the shape of the outer surface of the target glass, so as to facilitate the forming of the columnar glass. The chain lifting assembly includes a lifting chain and a sprocket. Optionally, the two chain lifting assemblies share a lifting motor or each uses a lifting motor.

[0066] In this embodiment, the roller forming mechanism 3 can directly cooperate with the cylindrical tube 201-1, and the outer cylindrical surface of the cylindrical tube 201-1 can directly participate in the forming as the cylindrical inner forming surface to form the glass into a column. It can well realize the forming of columnar glass with a forming central angle greater than 180°, and can also form columnar glass with a central angle less than or equal to 180°. The structure is simple and the feasibility is strong.

[0067] In other embodiments, further, a heat-resistant member may be provided on the surface of the cylindrical tube 201-1. The heat-resistant member is a heat-resistant cloth or aramid rope covering the outer surface of the cylindrical tube 201-1. The columnar inner molding surface is formed by the surface of the heat-resistant member, which can improve the quality of glass molding and protect the glass surface. It should be noted that the heat-resistant member forming the columnar inner molding surface may also have a certain strength itself, and it does not have to be provided on the surface of the mold frame of the columnar barrel structure. The mold frame may not be a columnar barrel structure. As long as the heat-resistant member can be provided on it, it can be used for molding.

[0068] In other embodiments, the roller forming mechanism 3 may also adopt a jacking arc forming method instead of the pulling arc forming method of the chain pulling assembly 4, which can also play the role of bending into an arc.

[0069] Embodiment 3: Based on embodiment 2, Figure 4As shown, the inner mold forming mechanism 2 also includes a forming component arranged on the cylindrical barrel 201-1, and the forming component includes a plurality of rollers arranged at intervals along the circumferential direction of the cylindrical barrel 201-1. The rollers are preferably hard-axis rollers 202, and the length direction of the rollers is arranged parallel to the generatrix direction of the cylindrical inner forming surface 204. A plurality of hard-axis rollers 202 are fitted into the cylindrical inner forming surface 204, which makes the setting and selection of the cylindrical inner forming surface more flexible, the cylindrical inner forming surface is easier to adjust, and the cylindrical barrel makes it more convenient to fix the hard-axis rollers.

[0070] In other embodiments, Figure 5 As shown, the forming assembly can also be arranged on an elliptical cylinder.

[0071] In this embodiment, the mold frame 201 adopts a cylindrical barrel structure, so that the rigid shaft roller has a unified fixing base, the fixing is more convenient, and the forming of the cylindrical inner forming surface is easier. In other embodiments, the mold frame 201 may not adopt a cylindrical barrel structure. The key is that the multiple rollers fixed on the outside of the mold frame can fit into the cylindrical inner forming surface 204. The mold frame can adopt a simple fixing structure, only fixing the two ends of the rigid shaft roller, and the cylindrical inner forming surface can also be achieved, which is more flexible.

[0072] In this embodiment, the conveying roller in the roller forming mechanism 3 also adopts a hard shaft roller. The action flow of the roller forming mechanism 3 cooperating with the inner forming mechanism 2 is as follows: Figure 6 , Figure 7 , the glass reaches a predetermined position on the roller forming mechanism 3 in a flattened state, and then the roller forming mechanism 3 changes its arc to form a columnar outer forming surface that matches the columnar inner forming surface, thereby completing the forming of the columnar glass.

[0073] In other embodiments, a soft-shaft roller can be used to replace the hard-shaft roller 202, and the same arrangement can be used. Alternatively, the hard-shaft roller can be replaced by rollers, and multiple rollers are fitted into the cylindrical inner forming surface, and the generatrix direction of the rollers is parallel to the generatrix direction of the cylindrical inner forming surface.

[0074] In other embodiments, the hard shaft roller 202 on the mold frame 201 can be installed on the mold frame 201 via a height-adjustable support seat, or the hard shaft roller 202 is fixed to the support seat via a height adjustment mechanism, and the height of the hard shaft roller 202 can be adjusted to adjust the diameter of the columnar inner molding surface 204.

[0075] Furthermore, preferably, at this time, the conveying direction of the glass into the forming device is perpendicular to the generatrix direction of the columnar inner forming surface, so that the continuity of glass forming is better and the efficiency is higher.

[0076] Embodiment 4: The difference between this embodiment and embodiment 3 is that the structure of the inner mold forming mechanism 2 is different, such as Figure 8 shown.

[0077] In this embodiment, the mold frame 201 of the inner mold forming mechanism 2 includes two or more mold frame units 201-3, and the molding components or heat-resistant parts are arranged on the outer side of the mold frame unit 201-3. Specifically, rollers or heat-resistant parts are arranged on the side of the mold frame unit 201-3 facing the inner surface of the glass, and the rollers or heat-resistant parts on the multiple mold frame units 201-3 are fitted together to form a columnar inner molding surface that matches the shape of the inner surface of the target columnar glass. This mold frame structure has better flexibility and can also achieve the molding of columnar glass.

[0078] In other embodiments, the columnar barrel structure in Example 2 may also be divided into a plurality of mold frame units, which is also feasible.

[0079] Embodiment 5: Based on any of the above embodiments, Figures 9 to 11 As shown, in this embodiment, two inner mold forming mechanisms 2 are provided, and the mold frames 201 of the two inner mold forming mechanisms 2 are coaxially arranged.

[0080] In order to facilitate the smooth discharge of the small-opening columnar glass after bending and forming, the two inner mold forming mechanisms 2 are respectively arranged on the left movable slide 5 and the right movable slide 7 on the left and right sides of the frame 1. The left movable slide 5 is slidably arranged on the left ground rail 6, and the right movable slide 7 is slidably arranged on the right ground rail 8. Fig.10 , 11 As shown, taking the inner mold forming mechanism on the left side as an example, during the glass forming process, the left movable slide 5 is located at the right end of the left ground rail 6. Similarly, the right movable slide 7 is located at the left end of the right ground rail 8, and the ends of the two inner mold forming mechanisms 2 are butted; after the glass is formed, it will be wound on the inner mold forming mechanism 2, especially for columnar glass with a central angle greater than 180°. The opening on the glass column is smaller than the diameter of the inner mold forming mechanism 2, so it is difficult to separate the glass from the inner mold forming mechanism 2. At this time, the left and right movable slides can be slid to move the inner mold forming mechanism 2 out from the end of the formed glass to achieve separation from the columnar glass.

[0081] The columnar glass forming process corresponding to the forming device described in this embodiment is described below.

[0082] (1) After the hot glass comes out of the furnace, it enters the forming device along the conveyor roller and reaches the predetermined position of the forming device;

[0083] (2) Arc change, such as Figure 6 , 7As shown, the chain lifting assembly 4 drives the two lifting ends of the roller forming mechanism 3 below to arc, so that the roller forming mechanism 3 reaches the target arc shape, thereby driving the hot glass carried to bend synchronously and close to the forming assembly on the surface of the inner mold forming mechanism 2, so that the glass is formed into the target shape;

[0084] (3) Sheet discharge: The chain lifting assembly 4 drives the roller forming mechanism 3 below to flatten the sheet, and controls the two movable slides to move the two inner mold forming mechanisms outward, and extracts the sheet from the end of the formed glass. The roller of the roller forming mechanism 3 runs to deliver the formed glass.

[0085] Furthermore, after the roller forming mechanism 3 changes its arc, the rollers on the roller forming mechanism 3 drive the glass to swing unidirectionally or bidirectionally along the circumferential direction under the drive of its own power mechanism, which can further improve the forming accuracy of the glass.

[0086] In the present embodiment, two coaxially arranged inner mold forming mechanisms 2 are used. In other embodiments, only one inner mold forming mechanism 2 may be used. In this case, one end of the inner mold forming mechanism 2 is connected to the corresponding movable slide, and the whole is in a suspended state. If the size of the inner mold forming mechanism 2 along the busbar direction of the columnar glass is set too large, the inner mold forming mechanism 2 will sag and deform due to its center of gravity offset and the weight of the glass during long-term use, and the end portion is prone to sag. Therefore, it is more suitable for the molding of smaller glass. When the size of the glass along the busbar direction of the columnar glass is large, it is necessary to adopt two inner mold forming mechanisms 2, and the structure of the device will be more stable and durable.

[0087] Embodiment 6: Based on Embodiment 4, the mold frame 201 is connected to a lifting mechanism, wherein the two or more mold frame units 201-3 are connected in an openable and closable manner; the relative movement between the mold frame units 201-3 includes a rotatable opening and closing connection or a slidable opening and closing connection, or each mold frame unit 201-3 is connected to a lifting mechanism. The specific structural designs are as follows:

[0088] (1) Rotatable opening and closing connection: Fig.12 As shown, the mold frame 201 includes two mold frame units 201-3, which are connected by rotation. Each mold frame unit 201-3 is driven by a driving mechanism to realize rotation and opening and closing. The mold frame unit 201-3 is a cylindrical tube with an arched cross section. The lower ends of the two mold frame units 201-3 are hinged, and the hard shaft roller is arranged on the circular surface of each mold frame unit 201-3. The driving mechanism is such as an electric push rod, a cylinder, an oil cylinder, etc., taking an electric push rod as an example.

[0089] The method of separating the glass from the inner mold forming mechanism after forming: after controlling the opening and closing of the two mold frame units 201-3 to achieve the target shape, cooperate with the roller forming mechanism 3 to form the glass, and then flatten the roller forming mechanism 3 to support the glass, and then control the two mold frame units 201-3 to rotate and close, so that the width of the inner mold forming mechanism 2 is smaller than the width of the cylindrical opening of the columnar glass after forming, and then the lifting mechanism drives the inner mold forming mechanism 2 to move out of the opening of the glass, and then the roller of the roller forming mechanism 3 sends the glass out.

[0090] (2) Sliding opening and closing connection: Fig.13 As shown, the mold frame 201 includes three mold frame units 201-3, and the mold frame unit 201-3 is a hollow cylindrical tube with an arched cross-section, wherein two mold frame units 201-3 can be relatively slidably opened and closed, and the hard shaft roller is arranged on the circular surface of each mold frame unit 201-3. Through the relative sliding of the two slidable mold frame units 201-3, the width of the entire inner mold forming mechanism 2 is reduced to be smaller than the width of the cylindrical opening of the columnar glass after molding, so that the inner mold forming mechanism 2 can be easily moved out of the molded columnar glass by lifting.

[0091] The method of separating the glass from the inner mold forming mechanism after forming: After the glass is formed, the roller forming mechanism 3 is flattened to support the glass, the movable mold frame unit 201-3 is controlled to slide, and then the mold frame is raised by a lifting mechanism such as a cylinder, so that the inner mold forming mechanism 2 is separated from the glass from the cylindrical opening of the glass, and finally the glass is sent out by the roller of the roller forming mechanism 3.

[0092] (3) The ways in which they can be raised and lowered: Fig.14 As shown, the mold frame 201 includes two or three mold frame units 201-3, which together form a combined cylindrical barrel structure with a central angle greater than 180°. The mold frame unit 201-3 is a hollow cylindrical barrel with a fan-shaped cross section. Each mold frame unit 201-3 is connected to a lifting mechanism, and each mold frame unit 201-3 can be separated from the glass from the cylindrical opening of the formed glass, thereby separating the inner mold forming mechanism 2 from the glass.

[0093] The method of separating the glass from the inner mold forming mechanism after forming: After the glass is formed, the roller forming mechanism 3 is flattened to support the glass, and each movable mold frame unit 201-3 is controlled to move toward the cylindrical opening of the cylindrical glass and separate from the glass, and finally the roller of the roller forming mechanism 3 sends the glass out.

[0094] In this embodiment, the mold frame 201 of the inner mold forming mechanism 2 is composed of two or more mold frame units 201-3, which not only facilitates demolding of the glass after molding, but also allows the columnar inner molding surface of the inner mold forming mechanism 2 to form other shapes, such as elliptical, U-shaped, etc., according to the shape of the mold frame unit 201-3.

[0095] Embodiment 7: Based on Embodiment 2, the difference is that the molding assembly includes a plurality of flexible shaft rollers spaced apart along the generatrix direction of the mold frame 201, the flexible shaft rollers are wound along the circumferential direction of the mold frame 201, and the plurality of flexible shaft rollers are fitted into a columnar inner molding surface 204. At this time, the roller group of the roller molding mechanism 3 also adopts a flexible shaft roller, so that the roller molding mechanism 3 can still be wrapped around the inner mold molding mechanism 2 after bending.

[0096] In this embodiment, the conveying direction of the glass into the forming device is parallel to the generatrix direction of the cylindrical inner forming surface, so the continuity of glass feeding and discharging is better and the efficiency is higher.

[0097] As another implementation manner, in this embodiment, a suction cup can also be used to load and unload the glass.

[0098] Embodiment 8: The above embodiments are all used for positive bending of glass, but the device can also be used for reverse bending of glass. For reverse bending of glass, the inner mold forming mechanism 2 can be arranged below the roller forming mechanism 3, such as Fig.15 As shown, the shaping of glass can also be achieved.

[0099] Optionally, a suction cup mechanism may be used to advance the glass.

[0100] Embodiment 9: A columnar glass forming device, comprising a heating device and a forming device, wherein the forming device is a columnar glass forming device as described in any of the above embodiments. After being heated by a heating furnace, the glass enters the forming device for forming.

[0101] Furthermore, in other embodiments, there are multiple inner mold forming mechanisms 2, and the multiple inner mold forming mechanisms 2 respectively form columnar structures with different set curvatures, which can be replaced according to the target glass radius. The roller forming mechanism 3 cooperates with the inner mold forming mechanisms 2 with different set curvatures to perform arc changes to different degrees, and finally realize the molding of glass with different radii.

[0102] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can be modified or replaced by equivalents with reference to the above embodiments. Any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention are within the scope of protection of the pending claims.

Claims

1. A columnar glass forming device, characterized in that: It includes an inner mold forming mechanism and a roller forming mechanism; The inner mold forming mechanism comprises a mold frame, and the inner mold forming mechanism has a columnar inner forming surface with a central angle greater than 180° and a shape that matches the inner surface of the target columnar glass; The roller forming mechanism comprises an arc changing mechanism and a roller group. The arc changing mechanism is used to change the roller group into an arc to form a cylindrical outer forming surface with a central angle greater than 180 degrees.

2. The columnar glass forming device according to claim 1, characterized in that: The mold frame is a columnar cylinder structure, which is a cylindrical cylinder, a semi-cylindrical cylinder with a central angle of α, an elliptical cylinder or a semi-elliptical cylinder with a central angle of α, 180°<α<360°.

3. The columnar glass forming device according to claim 1 or 2, characterized in that: The inner mold forming mechanism also includes a forming component or a heat-resistant part arranged on the mold frame; when the forming component is arranged on the mold frame, the forming component is fitted into the columnar inner forming surface; when the heat-resistant part is arranged on the mold frame, the columnar inner forming surface is formed by the surface of the heat-resistant part.

4. The columnar glass forming device according to claim 3, characterized in that: The forming assembly includes a plurality of rollers arranged on the outside of the mold frame, the plurality of rollers are fitted to form the cylindrical inner forming surface, and the length direction of the rollers is parallel to the generatrix direction of the cylindrical inner forming surface; or the forming assembly includes a plurality of rollers arranged on the outside of the mold frame, the plurality of rollers are fitted to form the cylindrical inner forming surface, and the generatrix direction of the rollers is parallel to the generatrix direction of the cylindrical inner forming surface.

5. The columnar glass forming device according to claim 3, characterized in that: The forming assembly comprises a plurality of flexible shaft rollers arranged at intervals along the outer side of the mold frame, the flexible shaft rollers are wound around the mold frame, and the plurality of flexible shaft rollers are fitted into a columnar inner forming surface.

6. The columnar glass forming device according to claim 1 or 2, characterized in that: The mold frame is an integrated structure.

7. The columnar glass forming device according to claim 1 or 2, characterized in that: The mold frame includes two or more mold frame units.

8. The columnar glass forming device according to claim 1 or 2, characterized in that: It also includes a movable slide, the inner mold forming mechanism is arranged on the movable slide, and the movable slide can drive the inner mold forming mechanism to move along the generatrix direction of the columnar glass to achieve the separation of the inner mold forming mechanism and the columnar glass.

9. The columnar glass forming device according to claim 8, characterized in that: The number of inner mold forming mechanisms is two, and the two inner mold forming mechanisms are coaxially arranged, and the two inner mold forming mechanisms are respectively arranged on two movable slides.

10. The columnar glass forming device according to claim 7, characterized in that: The mold frame is connected to a lifting mechanism, wherein the two or more mold frame units are movably connected and can be opened and closed; or each mold frame unit is respectively connected to a lifting mechanism.

11. The columnar glass forming device according to claim 3, characterized in that: The heat-resistant member is a heat-resistant cloth or aramid rope covering the outside of the mold frame.

12. The columnar glass forming device according to claim 1, characterized in that: The inner mold forming mechanism is located at the upper part of the roller forming mechanism; or, the inner mold forming mechanism is located at the lower part of the roller forming mechanism.

13. The columnar glass forming device according to claim 1 or 12, characterized in that: The arc changing mechanism is an arc changing mechanism capable of pulling up the arc or a jacking type arc changing mechanism.

14. The columnar glass forming device according to claim 13, characterized in that: The arc-changing mechanism capable of pulling and arcing comprises two pulling ends, each of which is connected to a pulling motor via a chain pulling assembly, and the two pulling motors and the correspondingly connected pulling ends are cross-arranged.

15. A columnar glass forming device, characterized in that: A heating device and a forming device are arranged in sequence, and the forming device adopts the columnar glass forming device described in any one of claims 1-14.

16. The columnar glass forming equipment according to claim 15, characterized in that: There are multiple inner mold forming mechanisms, and the multiple inner mold forming mechanisms respectively form columnar structures with different set curvatures, and can be replaced according to different target glass radii.

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