Toughening furnace with double-layer heating chamber

Abstract

The utility model relates to the technical field of toughening furnaces, and provides a toughening furnace with double layers of heating chambers, a furnace body is provided with a first heating chamber, a second heating chamber and a speed regulation area, a first roller group of the first heating chamber and a second roller group of the second heating chamber can be mechanically regulated through the speed regulation area, and different rotating speeds can be set. According to the technical scheme, the problem that in the prior art, a double-layer heating toughening furnace cannot produce glass with two different toughening time requirements at the same time is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tempering furnaces, and in particular to a tempering furnace with a double-layer heating chamber. Background Art

[0002] Physical tempering furnaces heat flat glass and then rapidly cool it, so that the surface of the cooled glass forms compressive stress and the interior of the glass forms tensile stress, thereby increasing the strength of the glass and turning ordinary annealed glass into tempered glass. In order to increase the utilization rate of tempering furnaces, a double-layer heating tempering furnace has appeared on the market, but the conveying rollers of the double-layer heating tempering furnace are generally driven by an ordinary drive motor, and the speed of the upper and lower conveying rollers is fixed and cannot be adjusted. Different tempered glasses have different heating and cooling times, so ordinary double-layer heating tempering furnaces cannot produce two types of glass with different tempering time requirements at the same time. Utility Model Content

[0003] The utility model proposes a tempering furnace with a double-layer heating chamber. By changing the connection position of the conveyor belt between the first roller group, the second roller group and the motor and changing the rotation speed of the first roller group and the second roller group, the problem that the double-layer heating tempering furnace in the related art cannot simultaneously produce two glasses with different tempering time requirements is solved.

[0004] The technical solution of the utility model is as follows:

[0005] A tempering furnace with a double-layer heating chamber comprises a furnace body, a first heating chamber, a second heating chamber, a first roller group, and a second roller group. A speed regulating zone is arranged in the furnace body, and the speed regulating zone is located on one side of the first heating chamber and the second heating chamber. A first diameter-changing wheel group is coaxially arranged on the side of the first roller group facing the speed regulating zone, and a second diameter-changing wheel group is coaxially arranged on the side of the second roller group facing the speed regulating zone. Both the first diameter-changing wheel group and the second diameter-changing wheel group are located in the speed regulating zone. A motor is arranged on one side of the speed regulating zone, and the motor and the first diameter-changing wheel group and the second diameter-changing wheel group are linked together.

[0006] Furthermore, the first variable diameter wheel set and the second variable diameter wheel set both include a plurality of pulleys with different diameters, and are coaxially arranged in sequence according to the diameters of the pulleys. The first variable diameter wheel set and the second variable diameter wheel set are both linked to the motor.

[0007] Furthermore, a starting pulley group is installed on the rotating shaft of the motor, and the starting pulley group includes a first starting wheel group and a second starting wheel. The arrangement order of the diameter sizes of the pulleys of the first starting wheel group and the second starting wheel group is opposite to the arrangement order of the first reducing wheel group and the second reducing wheel group, and they correspond one to one. The sum of the pulley diameters corresponding to each group of the first starting wheel group and the first reducing wheel group is equal, and the sum of the pulley diameters corresponding to each group of the second starting wheel group and the second reducing wheel group is equal. The first starting wheel group and the second starting wheel group are respectively embedded with a first conveyor belt and a second conveyor belt, the first conveyor belt is connected to the first reducing wheel group, and the second conveyor belt is connected to the second reducing wheel group.

[0008] Furthermore, an inspection port is provided on the outer wall of the speed regulating area, and a protective cover for covering the inspection port is detachably mounted on the outer wall.

[0009] Furthermore, the outer wall of the speed regulating area is provided with a plurality of mounting columns, and the protective cover is provided with a plurality of mounting grooves which are embedded and matched with the mounting columns.

[0010] Furthermore, a handle is provided on the protective cover, and the handle and the protective cover are fixedly connected.

[0011] Furthermore, heat insulation screens are installed at the inlet and outlet positions of the first heating chamber and the second heating chamber.

[0012] Furthermore, the heat insulation screen includes a plurality of strip-shaped heat insulation curtains whose projection surfaces are rectangular structures.

[0013] The working principle and beneficial effects of the utility model are:

[0014] The utility model arranges a plurality of pulley combinations with different diameters on one side of the first roller group and the second roller group and on the rotating shaft of the motor, and switches the diameters of pulleys with different diameters through the conveyor belt, thereby realizing independent adjustable rotation speeds of the first roller group and the second roller group. The first heating chamber and the second heating chamber can temper glass with different processing time requirements at the same time, thereby improving the flexibility of using the tempering furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model without a protective cover installed;

[0018] Figure 3 It is a structural schematic diagram of the speed regulating area in the utility model;

[0019] Figure 4 It is a partial enlarged view of the speed regulating area in the utility model;

[0020] Figure 5 It is a structural schematic diagram of the protective cover in the utility model.

[0021] In the figure: 1. furnace body; 2. first heating chamber; 21. first roller group; 3. second heating chamber; 31. second roller group; 4. speed regulating area; 41. first reducing wheel group; 42. second reducing wheel group; 43. starting pulley group; 431. first starting wheel group; 432. second starting wheel group; 44. inspection port; 45. mounting column; 46. first conveyor belt; 47. second conveyor belt; 5. motor; 6. protective cover; 61. mounting groove; 62. handle; 7. heat insulation screen. DETAILED DESCRIPTION

[0022] The following will be combined with 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 of 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.

[0023] like Figure 1 to Figure 5 As shown, this embodiment proposes a tempering furnace with a double-layer heating chamber, a speed regulating zone 4 is provided on one side of the first heating chamber 2 and the second heating chamber 3, and the first roller group 21 and the second roller group 31 both include a plurality of conveying rollers that rotate in linkage, which are used for the transmission of glass. The linkage rotation method of the conveying rollers is a prior art and is not elaborated in detail in this embodiment. A first variable diameter wheel group 41 is coaxially arranged on the side of the first roller group 21 facing the speed regulating zone 4, and a second variable diameter wheel group 42 is coaxially arranged on the side of the second roller group 31 facing the speed regulating zone 4. The first variable diameter wheel group 41 and the second variable diameter wheel group 42 are both located in the speed regulating zone 4. A motor 5 is provided on one side of the speed regulating zone 4, and the motor 5 and the first variable diameter wheel group 41 and the second variable diameter wheel group 42 are linked together. The rotation speed of the first roller group 21 and the second roller group 31 can be adjusted by matching and combining the conveyor belt with different outer diameters on the wheel group.

[0024] The first variable diameter wheel group 41 and the second variable diameter wheel group 42 both include a plurality of pulleys of different diameters, and are coaxially arranged in sequence according to the diameter size of the pulleys. Each group is provided with a pulley of different diameters, that is, one gear of adjustable speed is added. In order to facilitate the switching of the conveyor belt in the wheel grooves of different diameters, the pulleys are arranged in sequence according to the size of the diameter, which can be from large to small or from small to large. The first variable diameter wheel group 41 and the second variable diameter wheel group 42 are both linked with the motor 5. When the conveyor belt is replaced in the wheel grooves of different diameters, the distance between the rotating shaft of the motor 5 and the wheel group is changed. In order to keep the tension of the conveyor belt, the position of the motor 5 needs to be readjusted, which is troublesome. Therefore, the starting pulley group 43 on the rotating shaft of the motor 5 is provided with the first starting wheel group 431 and the second starting wheel group 432. The diameter arrangement order of the first starting wheel group 431 and the second starting wheel group 432 is respectively opposite to the arrangement order of the first variable diameter wheel group 41 and the second variable diameter wheel group 42 and corresponds one to one. The first starting wheel group 431 and the first variable diameter wheel group 41 are connected through the first conveyor belt 46, and the sum of the diameters of each corresponding group of pulleys is equal; the second starting pulley is connected to the second variable diameter wheel group 42 through the second conveyor belt 47, and the sum of the corresponding groups of pulleys is directly connected. The above design can achieve the effect of speed change by switching different pulley combinations without changing the conveyor belt. After the first conveyor belt 46 changes its position on the first starting wheel group 431, the first conveyor belt 46 on the first variable diameter wheel group 41 is also switched to the corresponding pulley to keep the tension of the conveyor belt. During the adjustment process, tools such as screwdrivers and crowbars can be used to assist in prying one end of the conveyor belt out of the wheel groove of the pulley. When putting on the conveyor belt, it is easier to put on the end with a larger pulley diameter first and then the end with a smaller pulley diameter. The second conveyor belt 47 is adjusted in speed through the second variable diameter wheel group and the second starting wheel group 432, and the adjustment method is the same as that of the first conveyor belt 46.

[0025] The outer part of the speed regulating zone 4 is hollowed out to provide an inspection port 44. The inspection port 44 is set to facilitate the maintenance and overhaul of the speed regulating zone 4, so the inspection port 44 is opened as close as possible to the mechanical connection part. Due to the setting of the inspection port 44, some parts of the speed regulating zone 4 are exposed. In order to prevent the operator's hair, clothes and other foreign objects from being caught in the conveyor belt and causing danger, the outer wall of the speed regulating zone 4 is detachably installed with a protective cover 6 covering the inspection port 44. Specifically, the protective cover 6 is installed in an embedded manner. A plurality of mounting columns 45 are fixedly connected to the side of the furnace body 1 facing the speed changing zone and the outer side of the speed regulating zone 4. The protective cover 6 is provided with a plurality of mounting grooves 61 that are embedded and matched with the mounting columns 45. No tools are required. The installation can be completed by simply embedding the mounting grooves 61 of the protective cover 6 on the corresponding mounting columns 45, which is very convenient. In order to facilitate the movement and holding of the protective cover 6, two handles 62 are provided on the protective cover 6, and the handles 62 are fixedly connected to the protective cover 6.

[0026] Heat insulation screens 7 are installed at the entrances and exits of the first heating chamber 2 and the second heating chamber 3. The heat insulation screens 7 can reduce the large amount of heat in the tempering furnace that is dissipated from the entrances and exits, thereby improving the thermal insulation effect of the tempering furnace. In addition, the heat insulation screens 7 can also prevent dust, reduce the dust layer in the workshop air from entering the tempering furnace, and keep the internal space clean. Furthermore, the heat insulation screens 7 are divided into a number of strip-shaped heat insulation curtains with rectangular projection surfaces. The heat insulation curtains are arranged and combined in sequence along the entrances and exits of the heating chambers. A single heat insulation curtain is light in weight and is easy to open and close. The heat insulation screens 7 do not need to be removed, and the operation and taking of workpieces at the entrances and exits of the first heating chamber 2 and the second heating chamber 3 will not be affected.

[0027] The method for adjusting the transmission speed of the first heating chamber 2 and the second heating chamber 3 in this embodiment is: hold the handle 62 by hand, lift the protective cover 6 upward, separate the mounting groove 61 from the mounting column 45, and remove the protective cover 6. If the transmission speed of the first heating chamber 2 needs to be increased, the first conveyor belt 46 of the first variable diameter wheel group 41 can be pried out of the current wheel groove with a screwdriver or other stick-shaped tools, and moved to the directly smaller pulley. At this time, the first conveyor belt is in a relaxed state, and the first conveyor belt 46 of the first starting wheel group 431 is first adjusted to the pulley groove with a larger diameter, and then the first conveyor belt 46 at the first variable diameter wheel group 41 is adjusted to the pulley groove corresponding to the pulley groove with a smaller diameter, and the rotation speed of the first roller group 21 becomes faster. During adjustment, the starting wheel group 43 can be turned by hand to assist the first conveyor belt 46 to enter the wheel groove. Whether the speed of the first roller group 21 is increased or decreased, the first conveyor belt 46 is first pried out of the original groove to make the first conveyor belt 46 in a loose state, and the end of the first conveyor belt 46 with a larger diameter is adjusted first, and then the end of the first conveyor belt 46 with a smaller diameter is adjusted. The speed adjustment method of the second roller group 31 is the same as that of the first roller group 21.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tempering furnace with a double-layer heating chamber, comprising a furnace body (1), a first heating chamber (2), a second heating chamber (3), a first roller group (21), and a second roller group (31), characterized in that: A speed regulating zone (4) is provided in the furnace body (1), and the speed regulating zone (4) is located on one side of the first heating chamber (2) and the second heating chamber (3); a first diameter-changing wheel group (41) is coaxially arranged on the side of the first roller group (21) facing the speed regulating zone (4); a second diameter-changing wheel group (42) is coaxially arranged on the side of the second roller group (31) facing the speed regulating zone (4); both the first diameter-changing wheel group (41) and the second diameter-changing wheel group (42) are located in the speed regulating zone (4); a motor (5) is provided on one side of the speed regulating zone (4); and the motor (5) and the first diameter-changing wheel group (41) and the second diameter-changing wheel group (42) are linked together.

2. The tempering furnace with a double-layer heating chamber according to claim 1, characterized in that: The first variable diameter wheel set (41) and the second variable diameter wheel set (42) both comprise a plurality of pulleys of different diameters, which are coaxially arranged in sequence according to the diameters of the pulleys. The first variable diameter wheel set (41) and the second variable diameter wheel set (42) are both linked to the motor (5).

3. The tempering furnace with a double-layer heating chamber according to claim 2, characterized in that: A starting pulley group (43) is mounted on the rotating shaft of the motor (5). The starting pulley group (43) comprises a first starting pulley group (431) and a second starting pulley. The diameters of the pulleys of the first starting pulley group (431) and the second starting pulley group (432) are arranged in the opposite order to the arrangement order of the first variable diameter pulley group (41) and the second variable diameter pulley group (42), and are in one-to-one correspondence. The sum of the diameters of the pulleys corresponding to each group of the first starting pulley group (431) and the first variable diameter pulley group (41) is equal, and the sum of the diameters of the pulleys corresponding to each group of the second starting pulley group (432) and the second variable diameter pulley group (42) is equal. The first starting pulley group (431) and the second starting pulley group (432) are respectively embedded with a first conveyor belt (46) and a second conveyor belt (47). The first conveyor belt (46) is connected to the first variable diameter pulley group (41), and the second conveyor belt (47) is connected to the second variable diameter pulley group (42).

4. The tempering furnace with a double-layer heating chamber according to claim 1, characterized in that: The outer wall of the speed regulating area (4) is provided with an inspection opening (44), and a protective cover (6) for covering the inspection opening (44) is detachably mounted on the outer wall.

5. The tempering furnace with a double-layer heating chamber according to claim 4, characterized in that: The outer wall of the speed regulating area (4) is provided with a plurality of mounting columns (45), and the protective cover (6) is provided with a plurality of mounting grooves (61) which are embedded and matched with the mounting columns (45).

6. The tempering furnace with a double-layer heating chamber according to claim 5, characterized in that: The protective cover (6) is provided with a handle (62), and the handle (62) and the protective cover (6) are fixedly connected.

7. The tempering furnace with a double-layer heating chamber according to claim 1, characterized in that: Heat insulation screens (7) are installed at the inlet and outlet positions of the first heating chamber (2) and the second heating chamber (3).

8. The tempering furnace with a double-layer heating chamber according to claim 7, characterized in that: The heat insulation screen (7) comprises a plurality of strip-shaped heat insulation curtains with a rectangular projection surface.

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