Annealing furnace for glass product annealing having uniform internal circulation temperature and use method therefor

By designing an annealing furnace with uniform internal circulation temperature and utilizing a combination of conveyor and tray structure, the problem of uneven heating of glass products during annealing was solved, achieving a more efficient and uniform heating effect and improving product quality.

WO2026031449A1PCT designated stage Publication Date: 2026-02-12ANHUI JINGJING GLASS PROD CO LTD
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Patent Information

Application Number
PCT/CN2024/142147
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-08-09
Filing Date
2024-12-25
Publication Date
2026-02-12

AI Technical Summary

Technical Problem

In existing glass annealing furnaces, the uneven heating of the product surface is caused by the inconsistent distance between the product's position inside the furnace and the heating resistance wire, which affects the production quality.

Method used

An annealing furnace with uniform internal circulation temperature was designed. A combination of a conveyor, a tray, and a heating plate assembly achieves uniform heating of glass products. The conveyor consists of two plates driven by a rocker arm; the tray is rotatable; and multiple heating plates can be moved and repositioned. A combination of chutes and rollers ensures temperature uniformity.

Benefits of technology

This achieves uniform heating of the glass product surface, improves production quality and efficiency, and avoids the inefficiency of manual operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

An annealing furnace (2) for glass product annealing having a uniform internal circulation temperature and a use method therefor, relating to the technical field of glass product manufacturing. A recess I (102) is provided on the upper surface of a base (1), two slide grooves I (103) are provided in the recess I (102), a transfer table (3) is provided in the recess I (102), the transfer table (3) is composed of two plates I (301), and a rocker rod I (4) is provided at the lower end of each of the two plates I (301) and is movably connected to the corresponding slide groove I (103). The annealing furnace (2) is arranged in the recess I (102), a movable door plate (202) is provided at the front of the annealing furnace (2), a heating plate group (5) is provided on the inner wall of the annealing furnace (2), a rotating rod (602) is provided at the inner bottom of the annealing furnace (2), and a tray (6) is provided at the upper end of the rotating rod (602). The present invention solves the problem in the prior art that different distances between positions of products placed in furnaces and heating resistance wires affect heating of the surfaces of the products and then the production quality of the products is directly affected. By means of the heating plate group (5), the internal temperature is more uniform, and a glass products further undergoes more stable heating; by means of rocker rods II (503) and rocker rods III (504), the distance to the glass product can be changed, and the heating position can be changed under the action of sliding blocks IV (506) and electric rollers II (507).
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Description

Glass article annealing with internal circulation temperature uniform annealing furnace and method of use thereof TECHNICAL FIELD

[0001] The present application relates to the technical field of glass product manufacturing, in particular to a glass product annealing with internal circulation temperature uniform annealing furnace and method of use thereof. BACKGROUND

[0002] With the increasing demand of various industries for glass products, the processing steps and processing technology in the manufacturing process are gradually increasing. The annealing process in the manufacturing process of glass products is an indispensable processing step for heat treatment of materials. Its working principle is to change the grain structure of the material by heating, holding and cooling, so as to improve the performance and characteristics of the glass product material. Therefore, the annealing furnace for completing the processing process is a relatively common processing equipment for glass product manufacturing.

[0003] Publication No. CN201721257940.4 discloses a glass annealing furnace, which comprises a furnace body with a furnace chamber and a heating element arranged on the inner wall of the furnace body, and a temperature equalizing device arranged in the furnace chamber. The temperature equalizing device is made of refractory material, and the inside of the temperature equalizing device is provided with a workpiece annealing cavity, and the upper end of the temperature equalizing device is provided with an opening communicating with the workpiece annealing cavity. By arranging the temperature equalizing device made of refractory material in the furnace chamber of the furnace body, the workpiece annealing cavity arranged in the temperature equalizing device is used as the effective working area for annealing, and the side wall of the temperature equalizing device can absorb the uneven heat radiated by the heating element, so that the heat is uniformly distributed on the side wall of the temperature equalizing device and radiates uniform heat to the workpiece annealing cavity in the form of surface radiation, thereby improving the uniformity of the annealing temperature in the effective working area.

[0004] The above-mentioned prior art solves the problem of large temperature deviation of the effective working area in the furnace chamber caused by improper arrangement of heating resistance wire, uneven winding of resistance wire, local short circuit or damage, etc. Although the arrangement of the heating resistance wire improves the uniformity of heating, the distance between the product in the furnace and the heating resistance wire is not the same, which affects the heating of the product surface and directly affects the production quality of the product.

[0005] Therefore, the glass product annealing with internal circulation temperature uniform annealing furnace and method of use thereof are proposed to solve the above-mentioned problems. SUMMARY

[0006] The purpose of the present application is to provide a glass product annealing with internal circulation temperature uniform annealing furnace and method of use thereof to solve the problem that the distance between the product in the furnace and the heating resistance wire is not the same, which affects the heating of the product surface and directly affects the production quality of the product.

[0007] In order to achieve the above object, the present application provides the following technical scheme: the glass product annealing inner circulation temperature uniform annealing furnace, including base, the upper surface of base is provided with groove one, the two grooves one are provided with two groots one, the groove one is equipped with conveying table, the conveying table is composed of two plates one, the lower end of two plates one is equipped with rocker one, and is movably connected with the groots one; The annealing furnace is arranged in the groove one, the front end of the annealing furnace is provided with a movable door plate, the inner wall of the annealing furnace is provided with a heating plate group, the inner bottom of the annealing furnace is provided with a rotating rod, and the upper end of the rotating rod is provided with a tray.

[0008] Preferably, the lower end of the two rocker arms is provided with a movable joint, and the lower end of the two movable joints is electrically connected with a driving motor one, and the lower end of the two driving motors is provided with a sliding block three through the sliding groove one, and the two sliding grooves one are provided with a motor lead screw two, and are movably connected with the sliding block three.

[0009] Preferably, the bottom of the two plates one is provided with a sliding groove five, the upper end of the two rocker arms one is movably connected with a sliding block two, and is movably connected with the sliding groove five, the two sides of the two sliding blocks two are provided with a motor roller one, the two sides of the two sliding grooves five are provided with a sliding groove six, and are movably connected with the motor roller one, and the two plates one are provided with a groove two for containing glass products.

[0010] Preferably, the lower end of the base is provided with a plurality of supporting legs, the upper end of the annealing furnace is provided with a condensing assembly for cooling, the front end of the annealing furnace is provided with two sliding grooves two, and is movably connected with the movable door plate, the rear end of the movable door plate is provided with two sliding blocks one, which is movably arranged in the sliding groove two, and the two sliding blocks one are provided with a motor lead screw one, which is used to control the up and down of the movable door plate.

[0011] Preferably, the tray is provided with a plurality of horizontal rods, and the inner bottom of the annealing furnace is provided with a driving motor two for driving the rotating rod to drive the tray to rotate.

[0012] Preferably, the front end of the annealing furnace is provided with an opening, and the inner wall of the annealing furnace is provided with a sliding groove three, and the sliding groove three is provided with a sliding groove four at the upper and lower ends.

[0013] Preferably, the heating plate group is composed of four plates two, the rear end of the plate two is fixedly connected with a connecting seat, the connecting seat is movably connected with a rocker two, the rear end of the rocker two is movably connected with a rocker three, one side of the rocker three is movably connected with a moving rod, and is movably connected with the sliding groove three.

[0014] Preferably, the rear end of the moving rod is provided with a sliding block four, and is movably connected with the sliding groove four, and the upper and lower ends of the sliding block four are movably connected with a motor roller two.

[0015] The working method of the glass product annealing inner circulation temperature uniform annealing furnace, comprising the following steps:

[0016] Step one: first, the glass product that needs to be annealed is sent to the opening of the annealing furnace by the conveying table based on rocker one, at this time the movable door plate at the opening is opened upward along the sliding groove two, and the glass product is sent to the tray in the base by the conveying table;

[0017] Step two: then, the movable door plate is closed to start the heating annealing operation, the tray containing the glass product can rotate at a constant speed during the processing, and the heating plate group on the inner wall of the annealing furnace can rotate along the sliding groove three and the sliding groove four during heating, and the position of each plate two is moved as needed, so that the uniform temperature effect is achieved;

[0018] Step three: finally, after heating for a certain time, the glass product in the base is cooled by the condensing assembly and then taken out.

[0019] Compared with the prior art, the beneficial effects of the present application are as follows:

[0020] 1、The heating plate group of the present application is divided into multiple plates, which can be easily moved to achieve the effect of uniform temperature, making the internal temperature more uniform and the surface of the glass product more stable. The multiple plates change the distance between them and the glass product through rocker two and rocker three on the back, increasing the flexibility of the structure. The sliding block four on the back of the moving rod can move in the sliding groove four under the action of the electric roller two, thereby moving the position of the inner wall of the annealing furnace;

[0021] 2、The tray and cross rod of the present application increase the contact surface between the glass product and the surrounding temperature, and the rotating rod below the tray rotates the glass product, thereby changing the heating surface of the glass product, increasing the processing efficiency and the effect of uniform heating;

[0022] 3、The conveying table of the present application is composed of two plates, which moves position under the action of rocker one below, realizes the function of conveying the glass product, and the sliding groove five opened on the lower surface of the plate can adjust the position based on the sliding block two, so that the two plates open to the sides, and the glass product placed in the conveying table is placed on the tray, avoiding the problem of low efficiency of manual operation. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic diagram of the outer structure of the annealing furnace of the present application;

[0024] Figure 2 is a schematic diagram of the outer structure of the annealing furnace of the present application;

[0025] Figure 3 is a schematic diagram of the internal structure of the annealing furnace of the present application;

[0026] Figure 4 is a schematic diagram of the cross-sectional structure of the annealing furnace of the present application;

[0027] Figure 5 is a schematic diagram of the tray structure of the present application;

[0028] Figure 6 is a schematic diagram of the conveying table structure of the present application;

[0029] Figure 7 is a schematic diagram of the conveying table structure of the present application;

[0030] Figure 8 is a schematic diagram of the back of the heating plate structure of the present application.

[0031] In the figure: 1, base; 101, support leg; 102, groove one; 103, sliding groove one; 2, annealing furnace; 201, condensing assembly; 202, movable door plate; 20201, sliding block one; 20202, electric screw rod one; 203, sliding groove two; 204, opening; 205, sliding groove three; 206, sliding groove four; 3, conveying table; 301, plate one; 302, groove two; 303, sliding groove five; 304, sliding groove six; 305, sliding block two; 306, electric roller one; 4, rocker one; 401, movable joint; 402, drive motor one; 403, sliding block three; 404, electric screw rod two; 5, heating plate group; 501, plate two; 502, connecting seat; 503, rocker two; 504, rocker three; 505, moving rod; 506, sliding block four; 507, electric roller two; 6, tray; 601, cross rod; 602, rotating rod; 603, drive motor two. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] To solve the existing technical problems, please refer to Figures 1-8, the following technical solutions are provided:

[0034] The glass product annealing inner circulation temperature uniform annealing furnace, including base 1, the upper surface of base 1 is provided with groove one 102, two sliding grooves one 103 are arranged in groove one 102, conveying table 3 is arranged in groove one 102, conveying table 3 is composed of two plate ones 301, the lower end of two plate ones 301 is provided with rocker one 4, and is movably connected with sliding groove one 103, the upper end of annealing furnace 2 is provided with condensing assembly 201 for cooling, annealing furnace 2 is arranged in groove one 102, the front end of annealing furnace 2 is provided with movable door plate 202, the lower end of base 1 is provided with a plurality of support legs 101, the front end of annealing furnace 2 is provided with two sliding grooves two 203, and is movably connected with movable door plate 202, as shown in Figures 1 and 2, the conveying table 3 is arranged for conveying the glass products to be processed, and the heating plate group 5 arranged in the base 1 is used to increase the uniform heating of the glass products.

[0035] In the embodiment, as shown in FIG. 3 and FIG. 4, two sliding blocks one 20201 are arranged at the rear end of the movable door plate 202, used for moving in the sliding groove two 203, and an electric screw rod one 20202 is arranged in each of the two sliding blocks one 20201, used for controlling the up-down movement of the movable door plate 202. An opening 204 is arranged at the front end of the annealing furnace 2, and a sliding groove three 205 is arranged on the inner wall of the annealing furnace 2. The sliding groove three 205 and the sliding groove four 206 arranged at the upper and lower ends of the sliding groove three 205 provide positions for the movement of the heating plate group 5, thereby increasing the uniformity of the internal air heating.

[0036] In the embodiment, as shown in FIG. 5, a rotating rod 602 is arranged at the inner bottom of the annealing furnace 2, a tray 6 is arranged at the upper end of the rotating rod 602, and a plurality of cross rods 601 are arranged in the tray 6. A driving motor two 603 is arranged at the inner bottom of the annealing furnace 2, used for driving the rotating rod 602 to rotate the tray 6. The tray 6 can rotate an angle when heated by the heating plate group 5 based on the driving rotating rod 602 and the driving motor two 603, and the cross rods 601 arranged in the tray 6 increase the heating surface of the glass products and the heating uniformity.

[0037] In the embodiment, as shown in FIG. 6 and FIG. 7, two movable joints 401 are arranged at the lower ends of the two rocker arms one 4, and a driving motor one 402 is electrically connected to the lower ends of the two movable joints 401. A sliding block three 403 is arranged at the lower end of each of the two driving motors one 402 through a sliding groove one 103. An electric screw rod two 404 is arranged in each of the two sliding groove ones 103 and movably connected with the sliding block three 403. A sliding groove five 303 is arranged at the bottom of each of the two plates one 301. A sliding block two 305 is movably connected to the upper end of each of the two rocker arms one 4 and movably connected with the sliding groove five 303. An electric roller one 306 is arranged at the two sides of each of the two sliding block two 305. A sliding groove six 304 is arranged at the two sides of each of the two sliding groove five 303 and movably connected with the electric roller one 306. A recess two 302 for containing glass products is arranged in each of the two plates one 301. The two plates one 301 of the conveying table 3 move positions through the rocker arm one 4 below, and the rocker arm one 4 and the sliding block two 305 are movably connected as shown in the figure. When the sliding block two 305 moves positions in the sliding groove six 304 through the electric roller one 306 at the two sides, the two plates one 301 are respectively opened outward, so that the glass products placed in the recess two 302 are placed on the cross rods 601 of the tray 6.

[0038] In this embodiment, as Figure 8 shows, the back end of each plate two 501 is fixedly connected with a connecting seat 502, the back end of the connecting seat 502 is movably connected with a rocker two 503, the back end of the rocker two 503 is movably connected with a rocker three 504, one side of the rocker three 504 is movably connected with a moving rod 505, and is movably connected with the sliding groove three 205, the back end of the moving rod 505 is provided with a sliding block four 506, and is movably connected with the sliding groove four 206, and the upper and lower ends of the sliding block four 506 are movably connected with an electric roller two 507, as shown in the figure, the plate two 501 moves the position in the sliding groove four 206 through the sliding block four 506 and the electric roller two 507, the joint between the rocker two 503 and the rocker three 504 is movably connected, so that the rocker three 504 and the rocker two 503 are straightened, so that the distance between the plate two 501 and the glass product is adjusted when needed.

[0039] Working principle: first, the glass product that needs to be annealed is placed in the groove two 302 of the conveying table 3, and under the action of the sliding block three 403 and the electric screw rod two 404, the rocker one 4 moves along the sliding groove one 103 to the opening 204 of the annealing furnace 2, at this time, the movable door plate 202 located at the opening 204 is opened upward along the sliding groove two 203 by the action of the sliding block one 20201 and the electric screw rod one 20202 to open the opening 204, then, the glass product is sent to the above of the tray 6 in the base 1 by the conveying table 3, at this time, the two plate one 301 is opened to the two sides by the action of the electric roller one 306 driving the sliding block two 305 and moving to change the position in the sliding groove five 303 and the sliding groove six 304, so that the glass product falls on the cross rod 601 of the tray 6, the conveying table 3 moves out of the annealing furnace 2, the movable door plate 202 is closed and the heating annealing operation is started, when heating, the tray 6 containing the glass product can rotate uniformly in the process, and the heating plate group 5 located in the annealing furnace 2 can rotate in the sliding groove three 205 and the sliding groove four 206 when heating to change the heating position, or rotate the connecting place of the rocker three 504 and the rocker two 503 to change its form, so that the structure can move the position of each plate two 501 and control the distance between the glass product, so as to realize the function of uniform temperature, finally, after heating for a certain time, the glass product in the base 1 is cooled by the condensing assembly 201, and then taken out.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the 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 invention.

Claims

1. An inner circulation temperature uniformity annealing furnace for annealing glass products, characterized by, Include: Base (1), the upper surface is provided with groove one (102), groove one (102) is provided with two chute one (103), groove one (102) is equipped with conveying table (3), conveying table (3) is composed of two board one (301), the lower end of two board one (301) is equipped with rocker one (4), and is movably connected with chute one (103); Annealing furnace (2) is arranged in groove one (102), the front end of annealing furnace (2) is provided with movable door plate (202), the inner wall of annealing furnace (2) is provided with heating plate group (5), the bottom of annealing furnace (2) is provided with rotating rod (602), the upper end of rotating rod (602) is provided with tray (6).

2. The temperature-uniform inner-circulation type annealing furnace for annealing glass products according to claim 1, characterized in that: The lower end of two rocker one (4) is provided with movable joint (401), the lower end of two movable joints (401) is electrically connected with drive motor one (402), the lower end of two drive motor one (402) is provided with sliding block three (403) through chute one (103), two chute one (103) are provided with electric screw rod two (404), and are movably connected with sliding block three (403).

3. The inner-circulation temperature-uniformity annealing furnace for annealing glass products according to claim 2, characterized in that: The bottom of two board one (301) is provided with chute five (303), the upper end of two rocker one (4) is movably connected with sliding block two (305), and is movably connected with chute five (303), the two sides of two sliding block two (305) are provided with electric roller one (306), the two sides of two chute five (303) are provided with chute six (304), and are movably connected with electric roller one (306), two board one (301) are provided with groove two (302) for containing glass products.

4. The inner-loop temperature-uniformity annealing furnace for annealing glass products according to claim 1, characterized in that: The lower end of base (1) is provided with a plurality of supporting legs (101), the upper end of annealing furnace (2) is provided with condensing assembly (201) for cooling, the front end of annealing furnace (2) is provided with two chute two (203), and is movably connected with movable door plate (202), the rear end of movable door plate (202) is provided with two sliding blocks one (20201), which is movably arranged in chute two (203), two sliding blocks one (20201) are provided with electric screw rod one (20202) for controlling the up-down movement of movable door plate (202).

5. The inner-loop temperature-uniformity annealing furnace for annealing glass products according to claim 1, characterized in that: The inner wall of annealing furnace (2) is provided with sliding groove three (205), and the upper and lower ends of sliding groove three (205) are provided with sliding groove four (206).

6. The inner-loop temperature uniformity annealing lehr for annealing glass articles according to claim 1, characterized in that: The heating plate group (5) is composed of four board two (501), the rear end of board two (501) is fixedly connected with connecting seat (502), connecting seat (502) is movably connected with rocker two (503), the rear end of rocker two (503) is movably connected with rocker three (504), one side of rocker three (504) is movably connected with moving rod (505), and is movably connected with sliding groove three (205).

7. The inner-loop temperature-uniformity annealing furnace for annealing glass products according to claim 6, characterized in that: ​ 8. The inner-loop temperature uniformity annealing lehr for annealing glass articles according to claim 7, characterized in that: The rear end of the moving rod (505) is equipped with a slider four (506), and is movably connected with a sliding groove four (206). The upper and lower ends of the slider four (506) are movably connected with electric rollers two (507).

9. A method of operating an inner-circulation temperature-uniformizing annealing furnace for glass products according to any one of claims 1 to 8, characterized in that, The method comprises the following steps: Step one: the glass products to be annealed are sent to the opening (204) of the annealing furnace (2) through the conveying table (3) based on the rocker one (4), at this time the movable door plate (202) at the opening (204) is opened upwards along the sliding groove two (203), and the glass products are sent to the tray (6) in the base (1) by the conveying table (3); Step two: the movable door plate (202) is closed to start the heating annealing operation, the tray (6) containing the glass products can rotate at a constant speed in the processing process, and the heating plate group (5) in the annealing furnace (2) can rotate in the sliding groove three (205) and the sliding groove four (206) to move the positions of the various plates two (501) according to the needs, so that the uniform temperature effect is realized; Step three: after heating for a certain time, the glass products in the base (1) are cooled by the condensing assembly (201), and then taken out.

Citation Information

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