CN110590135A

CN110590135A - Preparation facilities of curved toughened glass of big radian heat

Info

Publication number: CN110590135A
Application number: CN201911011359.8A
Authority: CN
Inventors: 何祖雄
Original assignee: Hunan Shengxi Glass Co Ltd
Current assignee: Hunan Shengxi Glass Co Ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2019-12-20
Anticipated expiration: 2039-10-23
Also published as: CN110590135B

Abstract

The invention discloses a device for preparing large-radian hot-bending toughened glass, which comprises a heating furnace, a hot-bending processing die and a forming intervention mechanism, wherein the forming intervention mechanism comprises two sets of lead screw nut mechanisms arranged on two opposite side walls of the heating furnace, and a lead screw stepping motor is arranged outside the heating furnace; two ends of a translation cross beam are respectively connected with nuts of the screw nut mechanism, at least two chain wheels are sleeved on the translation cross beam, a chain is meshed with the chain wheels, the A end of the chain penetrates through an observation window of the heating furnace and is led out of the heating furnace, the A end is connected with a winding roller, and the winding roller is connected with a roller stepping motor; the B end of the chain is fixedly connected with a lifting cross beam, and rotating shafts at two ends of the pressing roller are arranged on the lifting cross beam; the pressing roller consists of a counterweight core rod and a fireproof cloth outer sleeve; the pressing roller is correspondingly positioned above the hot bending processing die. The work of the forming intervention mechanism is effectively and reliably completed; is suitable for the high-temperature working environment in the heating furnace.

Description

Preparation facilities of curved toughened glass of big radian heat

Technical Field

The invention relates to a preparation method of toughened glass.

Background

The hot bending glass is curved glass which is made by heating, bending and softening high-quality glass, forming in a mould and annealing in order to meet the high-quality requirements of modern buildings. The style is beautiful, and the lines are smooth. The glass breaks through the singleness of the plate glass, and is more flexible and diverse in use. The method is suitable for special requirements of different shapes such as fish tanks, dining tables, balconies, mobile phone counters, cosmetic counters, hot bending television cabinets, doors, windows, ceilings, curtain walls and the like.

At present, curved surface toughened glass is generally formed by processing plane toughened glass through a hot bending processing die matched with a heating device, the main principle is that the plane toughened glass is placed into the hot bending processing die, then the toughened glass is heated, the toughened glass is heated to be softened and each part is bent under the action of self gravity, and finally the bent amplitude of the following die is shaped. For hot-bending glass with large radian (the arc length is more than 4500mm), the processing difficulty is high, and the condition that the curve of the glass cannot be well matched with a mold easily occurs.

Disclosure of Invention

In order to solve the above drawbacks, the present invention provides a device for manufacturing large-radian thermally-bent tempered glass, so that the curve of the glass is well matched with the mold. In order to solve the technical problems, the invention adopts the technical scheme that the device for preparing the large-radian hot-bent toughened glass comprises a heating furnace and a hot-bending processing die, and is characterized by also comprising a forming intervention mechanism, wherein the forming intervention mechanism comprises two sets of lead screw nut mechanisms arranged on two opposite side walls of the heating furnace, and a lead screw stepping motor is arranged outside the heating furnace; two ends of a translation cross beam are respectively connected with nuts of the screw nut mechanism, at least two chain wheels are sleeved on the translation cross beam, a chain is meshed with the chain wheels, the A end of the chain penetrates through an observation window of the heating furnace and is led out of the heating furnace, the A end is connected with a winding roller, and the winding roller is connected with a roller stepping motor; the B end of the chain is fixedly connected with a lifting cross beam, and rotating shafts at two ends of the pressing roller are arranged on the lifting cross beam; the pressing roller consists of a counterweight core rod and a fireproof cloth outer sleeve; the pressing roller is correspondingly positioned above the hot bending processing die.

The invention has the advantages that in the heating softening molding process, when the curve of the glass can not be well matched with the mold, the translation beam is driven by the lead screw stepping motor to move to the position above the non-matched part; the roller stepping motor unreels the chain, and the freely rotatable pressing roller descends to roll the corresponding part to ensure that the corresponding part is matched with the die for molding; meanwhile, the molding intervention mechanism works effectively and reliably; is suitable for the high-temperature working environment in the heating furnace.

In order to avoid the obvious mark of the glass caused by the overlarge impact of the pressure applying roller, the rotating shafts at two ends of the pressure applying roller are preferably arranged on the lifting cross beam through a buffer mechanism. Preferably, the structure of the buffer mechanism is that mounting cavities are formed in two ends of the lifting beam, buffer springs are arranged in the mounting cavities, and bearing seats of rotating shafts at two ends of the pressing roller are hoisted in the mounting cavities through the buffer springs.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is a schematic diagram of an embodiment molding intervention mechanism;

FIG. 3 is a schematic diagram of a damping mechanism according to an embodiment.

Detailed Description

Referring to the attached drawings 1-3, reflecting a specific structure of the invention, the device for preparing the large-radian thermally-bent toughened glass comprises a heating furnace consisting of a hearth 1, a movable electric heating furnace end 2 and a controller 3, and a thermally-bending processing mold 4 which is manufactured according to requirements is arranged in the hearth 1.

The device also comprises a molding intervention mechanism, wherein the molding intervention mechanism comprises two sets of lead screw 5 and nut 6 mechanisms which are arranged on two opposite side walls of the hearth 1, and a lead screw stepping motor 7 is arranged outside the hearth 1 to avoid high temperature; two ends of a translation beam 8 are respectively connected with nuts 6 of the screw nut mechanism, two chain wheels 9 are sleeved on the translation beam 8, a chain 10 is meshed with the chain wheels 9, the end A of the chain 10 penetrates through an observation window 11 of the hearth 1 and is led out of the heating furnace, the end A is connected with a winding roller 12 outside the heating furnace, and the winding roller 12 is connected with a roller stepping motor 13; the B end of the chain 10 is fixedly connected with a lifting beam 14, and rotating shafts 15 at two ends of the pressing roller are arranged on the lifting beam 14; the pressing roller consists of a counterweight core bar 16 and a fireproof cloth outer sleeve 17. The pressing roller is correspondingly positioned above the hot bending processing die 4.

In order to avoid the obvious mark of the glass caused by the overlarge impact of the pressure applying roller, in this example, the rotating shafts 15 at two ends of the pressure applying roller are arranged on the lifting beam 14 through a buffer mechanism, and the structure of the buffer mechanism is as follows: two ends of the lifting beam 14 are provided with mounting cavities 18, buffer springs 19 are arranged in the mounting cavities 18, bearing seats 20 of the rotating shaft 15 are fixedly connected with suspenders 21, and the suspenders 21 are sleeved in the buffer springs 19, so that the bearing seats 20 are hung in the mounting cavities 18.

By adopting the technical scheme, the plate glass (not shown in the figure) is placed on the hot bending processing die 4, and when the curve of the glass can not be well matched with the radian of the hot bending processing die 4 in the heating, softening and forming process of the plate glass, the screw rod stepping motor 7 rotates forwards to drive the translation cross beam 8 to move to the position which is not matched with the radian of the hot bending processing die 4; the unreeling chain 10 is rotated forward by a roller stepping motor 13, the pressing roller descends, and the freely rotating pressing roller descends to the surface of the glass to roll the corresponding part to be matched with the mold for molding. Then a roller stepping motor 13 rotates reversely to wind the chain 10 on a winding roller 12, and the pressing roller is lifted to reset; the screw rod stepping motor 7 rotates reversely to drive the translation cross beam 8 to reset.

The above-mentioned implementation is only for clearly illustrating the technical solutions of the present invention, and is not to be construed as limiting the present invention in any way. The present invention has many known alternatives and modifications in the art, which fall within the scope of the present invention without departing from the spirit of the present invention.

Claims

1. The device for preparing the large-radian hot-bent toughened glass comprises a heating furnace and a hot-bending processing die and is characterized by further comprising a molding intervention mechanism, wherein the molding intervention mechanism comprises two sets of lead screw nut mechanisms arranged on two opposite side walls of the heating furnace, and a lead screw stepping motor is arranged outside the heating furnace; two ends of a translation cross beam are respectively connected with nuts of the screw nut mechanism, at least two chain wheels are sleeved on the translation cross beam, a chain is meshed with the chain wheels, the A end of the chain penetrates through an observation window of the heating furnace and is led out of the heating furnace, the A end is connected with a winding roller, and the winding roller is connected with a roller stepping motor; the B end of the chain is fixedly connected with a lifting cross beam, and rotating shafts at two ends of the pressing roller are arranged on the lifting cross beam; the pressing roller consists of a counterweight core rod and a fireproof cloth outer sleeve; the pressing roller is correspondingly positioned above the hot bending processing die.

2. The apparatus for manufacturing large arc hot-bent tempered glass as claimed in claim 1, wherein the rotating shafts at both ends of the pressure applying roller are mounted on the lifting beam through a buffer mechanism.

3. The apparatus for manufacturing large arc hot-bent tempered glass as claimed in claim 2, wherein the buffering mechanism is configured such that mounting cavities are provided at both ends of the lifting beam, buffering springs are installed in the mounting cavities, and bearing seats of rotating shafts at both ends of the pressing roller are suspended in the mounting cavities through the buffering springs.