CN107129132B

CN107129132B - Glass hot bending furnace

Info

Publication number: CN107129132B
Application number: CN201710487815.0A
Authority: CN
Inventors: 廖荣新; 禤瑞彬; 黄进高
Original assignee: Zhaoqing Dexin Vacuum Equipment Co ltd
Current assignee: Zhaoqing Dexin Vacuum Equipment Co ltd
Priority date: 2017-06-23
Filing date: 2017-06-23
Publication date: 2023-06-16
Anticipated expiration: 2037-06-23
Also published as: CN107129132A

Abstract

The invention relates to a glass hot bending furnace, which comprises a fixed frame provided with a heating device, a rotating mechanism for installing a hot bending die, a shaft sleeve and a lifting mechanism, wherein the rotating mechanism is rotatably installed on the fixed frame through a positioning shaft, the shaft sleeve is tightly and slidably sleeved on the positioning shaft, the rotating mechanism is rotatably installed on the shaft sleeve, and the lifting mechanism is connected with the shaft sleeve and can drive the shaft sleeve to slide up and down. The shaft sleeve is tightly sleeved on the positioning shaft, so that the rotating mechanism can be prevented from shaking during rotation, and meanwhile, the lifting mechanism can realize up-and-down movement of the rotating mechanism, thereby being beneficial to hot bending processing of glass and greatly improving the qualification rate of hot bending of the glass.

Description

Glass hot bending furnace

Technical Field

The invention relates to the technical field of glass forming, in particular to a glass hot bending furnace.

Background

The production process of the glass of the rearview mirror, the concave cosmetic mirror and the like is as follows: firstly, placing the plate glass on a special mould, placing the plate glass into glass hot bending equipment, and hot bending the plate glass into bent glass with a certain curvature according to a certain heating process; and then the working procedures of cleaning, coating film, coating protective paint and the like are carried out. The quality of the rearview mirror or the concave cosmetic mirror is determined by the quality of the glass hot bending equipment. The glass hot bending equipment has various structural forms, wherein the circular rotary glass hot bending furnace can realize continuous production by only one worker to continuously retract and release sheets at an operation position. Therefore, the method has the advantages of high yield, simple and convenient operation, less required operators and the like.

However, the existing glass hot bending equipment has the following defects: 1. the flatness of the turntable varies greatly (shakes greatly) during operation; 2. the turntable has no lifting function or inconvenient lifting adjustment; 3. the rotating speed of the turntable is not stable, and the turntable is stumbled and slowed down; 4. the height of the turntable is uneven and cannot be adjusted; 5. the heating wire has low heat efficiency. The 1 to 4 points can cause fatal defects of pitting, radian, and the like of the product. Thus, improvements to existing glass hot bending apparatus are needed.

Disclosure of Invention

The invention aims to solve the technical problems that the traditional glass hot bending furnace is inconvenient to lift, the plane of a turntable shakes greatly, the rotating speed is unstable, and defects exist in glass processing.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a glass hot bending furnace, including the mount that installs heating device and be used for installing the rotary mechanism of hot bending mould, rotary mechanism passes through the rotatable installation of locating shaft on the mount, glass hot bending furnace still includes axle sleeve and elevating system, the inseparable and slidable cover of axle sleeve is established on the locating shaft, rotary mechanism rotatably installs on the axle sleeve, elevating system and shaft sleeve connection, but drive axle sleeve up-and-down slip.

Further, the lifting structure comprises a lifting motor and a connecting rod assembly, wherein the lifting motor is arranged at the top of the fixing frame and can drive the shaft sleeve to slide up and down through the connecting rod assembly.

Further, the connecting rod assembly comprises a lifting screw, a lifting disc and a pull rod, one end of the lifting screw is in transmission connection with the lifting motor, the other end of the lifting screw is in threaded connection with the lifting disc, one end of the pull rod is fixed on the lifting disc, and the other end of the pull rod is fixed on the shaft sleeve.

Further, the positioning shaft is arranged on the fixing frame through an upper fixing seat and a lower fixing seat, the upper fixing seat is arranged on the fixing frame, and the lower fixing seat is arranged at the bottom of the fixing frame; the lifting mechanism further comprises a stand column and a motor base for installing the lifting motor, wherein the bottom end of the stand column is installed on the upper fixing base, and the motor base is installed at the top end of the stand column.

Further, the glass hot bending furnace further comprises a power mechanism, the power mechanism comprises a rotating motor, a large gear and a small gear which are meshed with each other, the large gear is fixedly connected with the rotating mechanism, the small gear is fixedly connected with the rotating motor, and the rotating motor drives the rotating mechanism to rotate through transmission of the small gear and the large gear.

Further, the power mechanism further comprises a power bracket, the rotating motor is arranged at one end of the power bracket, and the other end of the power bracket is arranged on the shaft sleeve through key connection.

Further, the rotating mechanism comprises a rotating seat and a rotating arm, the rotating seat is rotatably arranged on the shaft sleeve through a bearing, the large gear is fixedly connected with the rotating seat, one end of the rotating arm is arranged on the rotating seat, and the hot bending die is arranged at the free end of the rotating arm; the one end that swinging boom and roating seat are connected still installs adjusting bolt, adjusting bolt spiro union is on the swinging boom and support the roating seat, adjusts the levelness of swinging boom through twisting adjusting bolt.

Further, the heating device comprises heat preservation cotton, a top brick, an inner brick and a plurality of heating wires wound on the fixing rod, wherein the heating wires are positioned below the top brick.

Further, the axial direction of each fixed rod coincides with the radial direction of the rotating mechanism.

Further, the glass hot bending furnace further comprises a horizontal adjusting mechanism, the horizontal adjusting mechanism comprises a tray, a plurality of screws and nuts, the tray is fixed at the top ends of the screws, the bottom ends of the screws are adjustably arranged on the rotating mechanism through the nuts, and the hot bending die is arranged on the tray.

Compared with the prior art, the glass hot bending furnace provided by the invention has the advantages that the shaft sleeve is tightly sleeved on the positioning shaft, so that the shaking of the rotating mechanism during rotation can be avoided, and meanwhile, the lifting mechanism can realize the up-and-down movement of the rotating mechanism, thereby being beneficial to the hot bending processing of glass and greatly improving the qualification rate of glass hot bending.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic top view of a glass hot bending furnace provided by the invention;

FIG. 2 is a schematic cross-sectional view of the glass hot bending furnace of FIG. 1;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

FIG. 4 is a schematic view of the upper fixture of FIG. 3;

FIG. 5 is a schematic view of the structure of the lifting disk of FIG. 3;

fig. 6 is an enlarged schematic view of part B of fig. 2.

Detailed Description

Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the present invention provides a glass hot bending furnace including a fixing frame 100 to which a heating device 110 is mounted and a rotating mechanism 200 for mounting a hot bending mold 210, the rotating mechanism 200 being rotatably mounted on the fixing frame 100 through a positioning shaft 300. The glass hot bending furnace further comprises a shaft sleeve 400 and a lifting mechanism 500, wherein the shaft sleeve 400 is tightly and slidably sleeved on the positioning shaft 300, the rotating mechanism 200 is rotatably installed on the shaft sleeve 400, and the lifting mechanism 500 is connected with the shaft sleeve 400 and can drive the shaft sleeve 400 to slide up and down. The shaft sleeve 400 is tightly sleeved on the positioning shaft 300, so that the shaking of the rotating mechanism 200 during rotation can be avoided, and meanwhile, the up-and-down movement of the rotating mechanism 200 is realized through the lifting mechanism 500, so that the glass hot bending processing is facilitated, and the glass hot bending qualification rate is greatly improved.

As shown in fig. 3, the elevation structure 500 includes an elevation motor 510 and a link assembly 520. The elevating motor 510 is installed on the fixing frame 100, and drives the shaft sleeve 400 to slide up and down through the link assembly 520. The linkage assembly 520 includes a lift screw 521, a lift plate 522, and a pull rod 523. One end of a lifting screw 521 is in transmission connection with the lifting motor 510, the other end of the lifting screw 521 is in threaded connection with the lifting disc 522, one end of a pull rod 523 is fixed on the lifting disc 522, and the other end is fixed on the shaft sleeve 400; the lifting motor 510 drives the lifting screw 521 to rotate, so that the lifting disc 522 moves up and down, and the shaft sleeve 400 is driven to slide up and down, thereby achieving the purpose of the lifting and rotating mechanism 200. In this embodiment, the lifting screw 521 is disposed coaxially with the positioning shaft 300, and three columns 550 and three tie rods 523 are disposed at intervals.

Specifically, the positioning shaft 300 is mounted on the fixing frame 100 through the upper fixing seat 530 and the lower fixing seat 540, the upper fixing seat 530 is mounted on the top of the fixing frame 100, and the lower fixing seat 540 is mounted on the bottom of the fixing frame 100, so that the stability of the positioning shaft 300 can be improved, and the rotation mechanism 200 is prevented from shaking. Elevating system 500 still includes stand 550 and is used for installing elevating motor 510's motor cabinet 560, and the bottom of stand 550 is installed on upper fixed base 530, and motor cabinet 560 installs on the stand 550 top.

As shown in fig. 4, the upper fixing base 530 is provided with a first hole 531 for fixing the positioning shaft 300, a second hole 532 for passing the pull rod 523, a third hole 533 for fixing the upright post 550, and a fourth hole 534. The upper fixing base 530 is fixed to the fixing frame 100 through the fourth hole 534 in cooperation with the bolt.

As shown in fig. 5, a threaded hole 524 is formed in the middle of the lifting disk 522, which is matched with the lifting screw 521, and three fixing plates 525 are outwardly extended from the outer wall of the threaded hole, and a fourth hole 526 for fixing the pull rod 523 is formed in each fixing plate 525. A notch 527 is provided between adjacent fixing plates 525 for the upright post 550 to pass through. This prevents the lift plate 522 from interfering with the upright 550.

Further, the glass-heating bending furnace further includes a power mechanism 600, and the power mechanism 600 includes a rotary motor 610 and a large gear 620 and a small gear 630 engaged with each other. The large gear 620 is fixedly connected with the rotating mechanism 200, the small gear 630 is fixedly connected with the rotating motor 610, and the rotating motor 610 drives the rotating mechanism 200 to rotate through the transmission of the small gear 630 and the large gear 620. The power mechanism 600 further includes a power bracket 640, the rotary electric machine 610 is mounted at one end of the power bracket 640, and the other end of the power bracket 640 is mounted on the shaft sleeve 400. In this embodiment, the power bracket 640 is mounted on the shaft sleeve 400 through a key connection, so that the connection is more stable and the disassembly is convenient. The existing glass hot bending furnace is characterized in that a rubber wheel is pressed on the outer side of a rotary table, a motor drives the rubber wheel to rotate, and the rubber wheel drives the rotary table to rotate through friction force, so that the phenomenon of unstable rotation is easy to occur. The glass hot bending furnace drives the rotating mechanism 200 to rotate through the pinion 630 and the large gear 620 which are meshed with each other, the rotation is very stable, the phenomena of clamping stagnation, stop stealing and the like are avoided, the glass is uniformly heated, and the cambered surface is uniform after hot bending forming.

As shown in fig. 6, the heating device 110 includes insulation cotton 111, a top brick 112, an inner brick 114, and a plurality of heating wires 116 wound around a fixing rod 115. The heater 116 is located below the top brick 112. In the existing glass hot bending furnace, heating wires penetrate through top bricks, so that only one third of heat emitted by the heating wires is directly radiated to glass, and the heat efficiency is low. In the present embodiment, the heating wire 116 is located below the top brick 112, i.e. is completely exposed below the top brick 112. Thus, half of the heat of the heating wire is directly radiated to the glass, so that the heat efficiency is higher.

In this embodiment, the fixing rods 115 are high temperature resistant ceramic rods, and the axial direction of each fixing rod 115 coincides with the radial direction of the rotation mechanism 200. I.e., the axial direction of the fixing bar 115 is perpendicular to the rotation direction, so that the glass can be heated more uniformly.

Further, the glass-heating bending furnace further comprises a horizontal adjusting mechanism 700, and the horizontal adjusting mechanism 700 comprises a tray 710, a plurality of screws 720 and nuts 730. The tray 710 is fixed to the top end of the screw 720, the bottom end of the screw 720 is adjustably mounted on the rotation mechanism 200 by a nut 730, and the hot bending mold 210 is mounted on the tray 710. Thus, the screw 720 can be adjusted to be lifted by screwing the nut, so that the levelness of the tray 710 can be adjusted.

Specifically, the rotation mechanism 200 includes a rotation seat 220 and a rotation arm 230, the rotation seat 220 is rotatably mounted on the shaft sleeve 400 through a bearing, the large gear 620 is fixedly connected with the rotation seat 220, one end of the rotation arm 230 is mounted on the rotation seat 220, and the horizontal adjustment mechanism 700 is mounted at the free end of the rotation arm 230. An adjusting bolt 240 is further installed at one end of the rotating arm 230 connected with the rotating seat 220, the adjusting bolt 240 is in threaded connection with the rotating arm 230 and abuts against the rotating seat 220, and levelness of the rotating arm 230 is adjusted by screwing the adjusting bolt 240.

As shown in fig. 1, an operation notch 120 is provided on the fixing frame 100, and the operator stands at the operation notch 120 to perform loading and unloading operations.

It should be understood that the foregoing embodiments are merely illustrative of the technical solutions of the present invention, and not limiting thereof, and that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art; all such modifications and substitutions are intended to be included within the scope of this disclosure as defined in the following claims.

Claims

1. The glass hot bending furnace comprises a fixed frame provided with a heating device and a rotating mechanism for installing a hot bending die, wherein the rotating mechanism is rotatably installed on the fixed frame through a positioning shaft; the positioning shaft is installed on the fixing frame through an upper fixing seat and a lower fixing seat, the upper fixing seat is installed at the top of the fixing frame, and the lower fixing seat is installed at the bottom of the fixing frame.

2. The glass hot bending furnace according to claim 1, wherein the lifting mechanism comprises a lifting motor and a connecting rod assembly, and the lifting motor is arranged at the top of the fixing frame and can drive the shaft sleeve to slide up and down through the connecting rod assembly.

3. The glass hot bending furnace according to claim 2, wherein the connecting rod assembly comprises a lifting screw, a lifting disc and a pull rod, one end of the lifting screw is in transmission connection with the lifting motor, the other end of the lifting screw is in threaded connection with the lifting disc, one end of the pull rod is fixed on the lifting disc, and the other end of the pull rod is fixed on the shaft sleeve.

4. A glass hot bending furnace according to claim 3, wherein the lifting mechanism further comprises a stand column and a motor base for mounting a lifting motor, the bottom end of the stand column is mounted on the upper fixing base, and the motor base is mounted on the top end of the stand column.

5. The glass hot bending furnace according to any one of claims 1 to 4, further comprising a power mechanism including a rotary electric machine and a large gear and a small gear meshed with each other, the large gear being fixedly connected with the rotary electric machine, the small gear being fixedly connected with the rotary electric machine, the rotary electric machine driving the rotary electric machine to rotate through transmission of the small gear and the large gear.

6. The glass hot bending furnace according to claim 5, wherein the power mechanism further comprises a power bracket, the rotating motor is mounted at one end of the power bracket, and the other end of the power bracket is mounted on the shaft sleeve through a key connection.

7. The glass hot bending furnace according to claim 5, wherein the rotating mechanism comprises a rotating seat and a rotating arm, the rotating seat is rotatably arranged on the shaft sleeve through a bearing, the large gear is fixedly connected with the rotating seat, one end of the rotating arm is arranged on the rotating seat, and the hot bending die is arranged at the free end of the rotating arm; the one end that swinging boom and roating seat are connected still installs adjusting bolt, adjusting bolt spiro union is on the swinging boom and support the roating seat, adjusts the levelness of swinging boom through twisting adjusting bolt.

8. The glass hot bending furnace according to any one of claims 1 to 4, wherein the heating device comprises heat insulation cotton, a top brick, an inner brick and a plurality of heating wires wound on a fixed rod, wherein the heating wires are positioned below the top brick.

9. The glass hot bending furnace of claim 8, wherein the axial direction of each of the fixed bars coincides with the radial direction of the rotating mechanism.

10. A glass hot bending furnace according to any one of claims 1 to 3, further comprising a horizontal adjustment mechanism comprising a tray and a plurality of screws and nuts, the tray being fixed to the top end of the screws, the bottom end of the screws being adjustably mounted on the rotation mechanism by the nuts, the hot bending die being mounted on the tray.