Hot bending and quenching forming equipment for curved glass of range hood

Abstract

The utility model discloses a range hood curved glass hot-bending quenching forming device which comprises a base, a lower die fixed to the base, a containing groove formed in the lower die, a top plate supported on the top of the base through stand columns, a telescopic air cylinder installed on the top plate, and a piston rod of the telescopic air cylinder penetrating through the top plate and then fixedly connected with an upper die. A protruding die head is arranged on the bottom face of the upper die, and the protruding die head is matched with the containing groove to form a containing die cavity. The upper mold and the lower mold are both provided with through holes penetrating front and back, and the through holes are arranged close to the placing mold cavity up and down; the heating element can be separated, when the mold and the glass are cooled through air cooling, the heating element cannot form interference, the heated mold can be rapidly cooled, and rapid cooling is facilitated; the through hole can be used as a heating cavity of a heating element and can also be used as a cooling cavity of an air cooling mechanism, so that the heating and cooling efficiency of the mold can be improved when the mold is arranged close to the cavity, and mutual interference is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of glass processing technology, specifically relating to a hot bending and rapid cooling forming equipment for curved glass in a smoke machine. Background Technology

[0002] Some types of glass require rapid cooling after hot bending to set their shape or enhance their performance (such as tempering). This is suitable for glass that requires high strength and safety after hot bending, such as automotive glass, building curtain walls, and curved glass for smoke hoods.

[0003] Currently, glass is generally heated and bent in a heating furnace or heating mold, and then cooled and shaped. Chinese patent document CN219385007 U discloses a glass hot bending forming device, which includes a lower mold and an upper mold disposed above the lower mold and movable up and down relative to the lower mold. Both the upper mold and the lower mold are equipped with heating elements connected to a heating power source. The upper mold and the lower mold are made of metal material and the glass is hot bent after the molds are closed. An air cooling mechanism is disposed on the forming cavity and is used to introduce air into the upper mold and the lower mold for cooling.

[0004] However, the above technical solutions have the following drawbacks: 1. The heating elements are not easy to separate. When the mold and glass are cooled by air cooling, the heating elements will interfere and cannot quickly cool the heated mold; 2. Considering the need for heating efficiency, the heating elements will also be arranged close to the cavity, which will occupy the position of the air vents, thus making it difficult for the air vents to be arranged close to the cavity. Utility Model Content

[0005] This utility model provides a hot bending and rapid cooling forming device for curved glass in a smoke machine. The heating element is separable, and when the mold and glass are cooled by air cooling, the heating element will not interfere with the mold and can quickly cool the heated mold, which is conducive to rapid cooling. The through hole can be used as a heating chamber for the heating element or as a cooling chamber for the air cooling mechanism. When arranged close to the cavity, it can improve the heating and cooling efficiency of the mold and prevent interference between them, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hot bending and rapid cooling forming device for curved glass in a smoke machine, comprising a base, a lower mold fixed on the base, a placement groove on the top of the lower mold, a top plate supported by a column on the top of the base, a downward telescopic cylinder mounted on the top plate, the piston rod of the telescopic cylinder passing through the top plate and fixedly connected to the upper mold, the upper mold being raised and lowered by the extension and retraction of the piston rod of the telescopic cylinder, the bottom surface of the upper mold having a protruding mold head, which cooperates with the placement groove to form a placement mold cavity; both the upper mold and the lower mold have through holes extending from front to back, the through holes being arranged close to the placement mold cavity along the top and bottom.

[0007] Preferably, both the upper mold and the lower mold have an insulated shell on their outer walls.

[0008] Preferably, the heat-insulating shell has accommodating spaces extending beyond the upper and lower molds at both the front and rear positions, and a sealing door is installed on the front side. The heat-insulating shell is equipped with an air inlet and an air outlet at the top that connect to the front accommodating space.

[0009] Preferably, the sealed door further includes a door with heating rods installed, the heating rods being inserted into the corresponding through holes, and the external wires of the heating rods being located on the front side of the door.

[0010] Preferably, the upper mold is provided with positioning blocks on both sides, and the positioning blocks are provided with positioning holes corresponding to the columns.

[0011] Preferably, the four corners of the front side of the sealing door are connected to the upper mold and the lower mold by screws.

[0012] Preferably, each of the sealed doors is provided with multiple handles on the front side.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The heating element is separable. When the mold and glass are cooled by air, the heating element will not interfere with the cooling process and can quickly cool the heated mold, which is conducive to rapid cooling. Similarly, the cooling mechanism will not interfere with the heating element to quickly heat the mold.

[0015] 2. The through hole can be used as a heating chamber for the heating element or as a cooling chamber for the air-cooling mechanism. When arranged close to the cavity, it can improve the heating and cooling efficiency of the mold without interference. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front sectional view of the present invention;

[0017] Figure 2 This is a front view structural diagram of the present invention;

[0018] Figure 3 This is a side sectional view of the lower mold and upper mold of this utility model;

[0019] Figure 4 This is a schematic diagram of the heating rod structure of this utility model;

[0020] Figure 5 This is a side sectional view of the heating rod of this utility model after installation.

[0021] In the diagram: 1. Base; 2. Lower mold; 3. Column; 4. Top plate; 5. Telescopic cylinder; 6. Upper mold; 7. Mold head; 8. Mold cavity placement; 9. Through hole; 10. Insulation shell; 11. Accommodation space; 12. Sealing door; 13. Air inlet; 14. Air outlet; 15. Heating rod; 16. Wire; 17. Positioning block; 18. Handle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 This utility model provides a hot bending and rapid cooling forming device for curved glass in a smoke machine, including a base 1. A lower mold 2 is fixed on the base 1 to cooperate with the upper mold to complete the hot bending forming of the glass. The top of the lower mold 2 is provided with a placement groove for placing the hot-bent curved glass blank. The top of the base 1 is supported by a column 3 and a top plate 4. A downward telescopic cylinder 5 is installed on the top plate 4. The piston rod of the telescopic cylinder 5 passes through the top plate 4 and is fixedly connected to the upper mold 6. The upper mold 6 is raised and lowered by the extension and retraction of the piston rod of the telescopic cylinder 5. The bottom surface of the upper mold 6 is provided with a protruding mold head 7, which cooperates with the placement groove to form a placement cavity 8, thereby shaping the hot-bent curved glass blank for subsequent heating and rapid cooling. Both the upper mold 6 and the lower mold 2 are provided with a through-hole. Through holes 9 are arranged close to the placement cavity 8 along the upper and lower sides to enable rapid heating or cooling of the placement cavity 8 and the curved glass blank inside it. The purpose is to place the curved glass blank after hot bending into the placement groove of the lower mold 2 when rapid cooling is needed to fix the shape or enhance the performance (such as tempering). Then, the piston rod of the telescopic cylinder 5 drives the upper mold 6 to rise and fall. The bottom surface of the upper mold 6 is provided with a protruding mold head 7, which cooperates with the placement groove to form the placement cavity 8, thereby fixing the curved glass blank after hot bending. Subsequently, the upper and lower molds are heated to the set temperature to reheat the curved glass blank to the softening temperature, and then rapidly cooled and solidified. The inside of the curved glass blank slowly shrinks, forming surface compressive stress and improving strength.

[0024] Specifically, both the upper mold 6 and the lower mold 2 are provided with heat-insulating shells 10 on their outer walls; in this embodiment, they can be used to insulate the upper mold 6 and the lower mold 2 when they are heated or cooled, thereby reducing heat transfer to the outside.

[0025] Specifically, the insulation shell 10 has accommodating spaces 11 extending beyond the upper mold 6 and lower mold 2 at both the front and rear positions, and a sealing door 12 is installed on the front side. The insulation shell 10 has an air inlet 13 and an air outlet 14 connected to the front accommodating space 11 at the top. In this embodiment, the sealing door 12 can be used to close the front end of the insulation shell 10, so that when the external cold air supply equipment is connected through the air inlet 13, the cold air enters the front accommodating space 11 and then enters the other accommodating space 11 through the through hole 9, and flows out from the air outlet 14. During this process, the mold cavity 8 and the curved glass blank inside it are rapidly cooled. Valves are installed on the air inlet 13 and the air outlet 14 for opening and closing and flow control.

[0026] Specifically, the sealing door 12 also includes a door with a heating rod 15 installed. The heating rod 15 is inserted into each through hole 9, and the external wire 16 of the heating rod 15 is located on the front side of the door. In this embodiment, the heating rod 15 is heated by connecting an external power source through the wire 16, so that the mold cavity 8 and the curved glass blank inside it can be heated quickly to the softening temperature.

[0027] Specifically, the upper mold 6 is provided with positioning blocks 17 on both sides, and the positioning blocks 17 are provided with positioning holes corresponding to the column 3; in this embodiment, when the upper mold 6 is raised and lowered by the extension and retraction of the piston rod of the telescopic cylinder 5, the positioning blocks 17 cooperate with the column 3 to perform precise positioning.

[0028] Specifically, the four corners of the front side of the sealing door 12 are connected to the upper mold 6 and the lower mold 2 by screws; in this embodiment, this facilitates the quick assembly and disassembly of the sealing door 12 with the upper mold 6 and the lower mold 2.

[0029] Specifically, the front side of the sealed door 12 is provided with multiple handles 18; in this embodiment, by providing multiple handles 18, it is convenient to position and lift the sealed door 12 with external lifting tools.

[0030] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0031] Working principle: When rapid cooling is required after hot bending of glass to set its shape or enhance its performance (such as tempering), the hot-bent curved glass blank is first placed in the placement groove of the lower mold 2. Then, the piston rod of the telescopic cylinder 5 is extended and retracted to drive the upper mold 6 to rise and fall. The bottom surface of the upper mold 6 is provided with a protruding mold head 7, which cooperates with the placement groove to form a placement mold cavity 8, thereby setting the hot-bent curved glass blank. Subsequently, the upper and lower molds are first heated to the set temperature. The purpose is to reheat the hot-bent curved glass blank to the softening temperature, and then rapidly cool and solidify it. The inside of the curved glass blank slowly shrinks, forming surface compressive stress and improving its strength.

[0032] When heating the curved glass blank after hot bending, after the upper and lower molds are in place, a sealing door with heating rod 15 is installed. An external power supply is connected through wire 16 to heat the heating rod 15, so that the curved glass blank placed in the mold cavity 8 and inside it can be quickly heated to the softening temperature. After softening, the door with heating rod 15 is removed, and then a sealing door 12 without heating rod 15 is installed.

[0033] The sealing door 12 can be used to seal the front end of the insulation shell 10, so that when the external cold air supply equipment is connected through the air inlet 13, the cold air enters the front receiving space 11 and then enters the other receiving space 11 through the through hole 9, and flows out from the air outlet 14. During this process, the mold cavity 8 and the curved glass blank inside are rapidly cooled. Valves are installed on both the air inlet 13 and the air outlet 14 for switching and flow control.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot bending and rapid cooling forming device for curved glass in a smoke machine, comprising a base (1), characterized in that, The base (1) is fixed with a lower mold (2). The lower mold (2) has a placement groove on its top. The base (1) is supported by a top plate (4) by a column (3). A downward telescopic cylinder (5) is installed on the top plate (4). The piston rod of the telescopic cylinder (5) passes through the top plate (4) and is fixedly connected to the upper mold (6). The upper mold (6) is raised and lowered by the extension and retraction of the piston rod of the telescopic cylinder (5). The bottom surface of the upper mold (6) is provided with a protruding mold head (7), which cooperates with the placement groove to form a placement mold cavity (8). Both the upper mold (6) and the lower mold (2) are provided with through holes (9) that run through the front and back. The through holes (9) are arranged close to the placement mold cavity (8) along the upper and lower sides.

2. The hot bending and rapid cooling forming equipment for curved glass in a smoke machine according to claim 1, characterized in that, Both the upper mold (6) and the lower mold (2) are provided with heat-insulating shells (10) on their outer walls.

3. The hot bending and rapid cooling forming equipment for curved glass in a smoke machine according to claim 2, characterized in that, The heat-insulating shell (10) has a receiving space (11) that extends beyond the upper mold (6) and the lower mold (2) at both the front and rear positions, and a sealing door (12) is installed on the front side. The heat-insulating shell (10) has an air inlet (13) and an air outlet (14) that connect to the front receiving space (11) at the top.

4. The hot bending and rapid cooling forming equipment for curved glass in a smoke machine according to claim 3, characterized in that, The sealed door (12) also includes a door with a heating rod (15) installed. The heating rod (15) is inserted into each through hole (9) and the external wire (16) of the heating rod (15) is located on the front side of the door.

5. The hot bending and rapid cooling forming equipment for curved glass in a smoke machine according to claim 3, characterized in that, The upper mold (6) is provided with positioning blocks (17) on both sides, and the positioning blocks (17) are provided with positioning holes corresponding to the column (3).

6. The hot bending and rapid cooling forming equipment for curved glass in a smoke machine according to claim 3, characterized in that, The four corners of the front side of the sealing door (12) are connected to the upper mold (6) and the lower mold (2) by screws.

7. The hot bending and rapid cooling forming equipment for curved glass in a smoke machine according to claim 3, characterized in that, Each of the sealed doors (12) is equipped with multiple handles (18) on the front side.

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