CN213570141U - Glass tube drawing device - Google Patents
Glass tube drawing device Download PDFInfo
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- CN213570141U CN213570141U CN202022782353.5U CN202022782353U CN213570141U CN 213570141 U CN213570141 U CN 213570141U CN 202022782353 U CN202022782353 U CN 202022782353U CN 213570141 U CN213570141 U CN 213570141U
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- pipe
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Abstract
The utility model provides a bubble-free and high-strength drawing device for glass tubes. The glass tube drawing device is characterized in that a guide rail is arranged on the tower frame, the suspension device is arranged in the guide rail, and the lifting motor drives the suspension device to move up and down in the guide rail; the air blowing pipe is arranged on the suspension device, and the air supply system is connected with the air blowing pipe; the softening furnace is positioned below the suspension device and is arranged on the mounting plate at the lower part of the tower; the traction mechanism comprises a driving wheel and a guide wheel, and is arranged below the softening furnace; the cutting device is arranged below the traction mechanism, and the hanging central axis of the hanging device, the central axis of the blowing pipe, the central axis of the softening furnace, the traction central axis of the driving wheel and the guide central axis of the guide wheel are superposed. The utility model discloses a female pipe of major diameter passes through the secondary and softens the trombone slide, and glass material is even fine and close pore-free. The utility model discloses be particularly suitable for the production of small batch, special glass super tubule, can show intensity and the compactness that improves the glass tubule.
Description
Technical Field
The utility model relates to a glass tube production facility especially relates to a glass tube drawing device.
Background
The sealing tube, the nuclear power sensor protective sleeve and the electronic packaging field in the aerospace field need special glass thin tubes, and the glass thin tubes are characterized by small demand, multiple varieties and multiple specifications, and the number of the superfine tubes with the diameter of less than 2mm is large. For a long time, the production of such tubes has generally been achieved by powder sintering, namely: firstly, producing required glass, grinding the glass into glass powder, adding a bonding agent to prepare raw material powder, then pressing the raw material powder into a tube by using a die, and finally sintering to obtain the thin tube. The biggest problem of the production mode is that bubbles are distributed in the manufactured tube, so that the compactness is low, the strength is not enough, and the quality of the tube becomes a weak link which restricts the service life of the device especially in the environment with high requirements on the compactness and the strength.
At present, the glass tube cannot be formed by one-step drawing, and other production modes have the problems of high production difficulty, high cost, poor product quality and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a glass tube drawing device that bubble-free and intensity is high is provided.
The utility model provides a technical scheme that technical problem adopted is: the glass tube drawing device comprises a suspension mechanism, a blowing system, a softening furnace, a traction mechanism and a cutting device, wherein the suspension mechanism comprises a lifting motor, a suspension device and a tower frame, a guide rail is arranged on the tower frame, the suspension device is arranged in the guide rail, and the lifting motor drives the suspension device to move up and down in the guide rail; the air blowing system comprises an air blowing pipe and an air supply system, the air blowing pipe is arranged on the suspension device, and the air supply system is connected with the air blowing pipe; the softening furnace is positioned below the suspension device and is arranged on the mounting plate at the lower part of the tower; the traction mechanism comprises a driving wheel and a guide wheel, and is arranged below the softening furnace; the cutting device is arranged below the traction mechanism, and the hanging central axis of the hanging device, the central axis of the blowing pipe, the central axis of the softening furnace, the traction central axis of the driving wheel and the guide central axis of the guide wheel are overlapped.
Furthermore, the suspension device comprises a support end and a suspension end, the support end is installed in the guide rail and moves up and down in the guide rail under the driving of the lifting motor, the suspension end is of a hollow structure, and a clamping groove is formed in the lower end of the suspension end; the air blowing pipe penetrates through the hollow structure of the suspension end, and the upper end of the air blowing pipe is connected with the suspension device through a connecting piece.
Further, a pipe diameter measuring instrument is arranged between the traction mechanism and the cutting device.
Further, the softening furnace is divided into a preheating zone and a softening zone, and movable partition plates are arranged between the preheating zone and the softening zone and at the upper end and the lower end of the softening furnace; thermocouples are arranged in the preheating zone and the softening zone to monitor the temperature.
Further, the driving wheel is composed of a pair of rollers, a transmission motor and a controller, the rollers are connected with an output shaft of the transmission motor, and the controller adjusts the revolution of the transmission motor so as to control the speed of the rollers.
Furthermore, the guide wheel is a driven wheel and is provided with more than 2 levels, and each level of guide wheel is composed of a pair of rollers.
Furthermore, the driving wheel and the guide wheel are provided with elastic devices.
Further, the cutting device comprises a cutter, an air cylinder and a controller.
The utility model has the advantages that: the large-diameter main pipe processed by the qualified glass block material is pulled through secondary softening, the processing technology of the main pipe is mature, the glass material is uniform and compact, and basically has no defect and pores compared with a sintered material; the secondary heating only softens the glass, and does not introduce gas, so that the compactness of the material is ensured; the softening process is adjusted to avoid a devitrification area of the glass, and the protective gas is blown in from the gas blowing pipe, so that the device is also suitable for drawing the glass pipe which is easy to devitrify and needs atmosphere protection; the utility model discloses convenient operation, application scope is wide, can extensively be applicable to the glass material of the overwhelming majority, is particularly suitable for the production of small batch, special glass super tubule, can show intensity and the compactness that improves the glass tubule.
Drawings
Fig. 1 is a front view of the device with a partial cross-section.
Fig. 2 is a left side view of the belt of fig. 1, partially in section.
FIG. 3 is a sectional view of the softening furnace of the apparatus of the present invention.
Detailed Description
As shown in fig. 1 to 3, the glass tube drawing apparatus of the present invention includes a suspension mechanism, a blowing system, a softening furnace 6, a pulling mechanism, and a cutting device 10. Wherein, the suspension mechanism comprises a lifting motor 1, a suspension device 3 and a tower 4, and is used for gradually conveying the main pipe 5 into a softening furnace 6 according to the process and keeping the stability of the main pipe 5. The tower 4 is a main structure of the whole device, a guide rail 13 is arranged on the tower 4, the suspension device 3 is arranged in the guide rail 13, and the lifting motor 1 arranged at the top end of the tower 4 drives the suspension device 3 to move up and down in the guide rail 13. The blowing system comprises a blowing pipe 2 and an air supply system, and the blowing system is used for ensuring the roundness of the glass tube 7. The gas blowing pipe 2 is arranged on the suspension device 3, and the gas supply system is connected with the gas blowing pipe 2. The softening furnace 6 is positioned below the suspension device 3 and is mounted on a mounting plate at the lower part of the tower 4. The traction mechanism comprises a driving wheel 9 and a guide wheel 8, is arranged below the softening furnace 6 and is used for providing traction power for the glass tube 7 and ensuring the position stability of the glass tube 7. The cutting device 10 comprises a cutter, a cylinder and a controller, and the cutting device 10 is arranged below the traction mechanism and is used for obtaining the glass tube 7 with the required length. The hanging central axis of the hanging device 3, the central axis of the air blowing pipe 2, the central axis of the softening furnace 6, the traction central axis of the driving wheel 9 and the guide central axis of the guide wheel 8 are coincided, and the hanging central axis of the hanging device 3 refers to: after the air blowing pipe 2 and the main pipe 5 are hung on the hanging device 3, the central axes of the air blowing pipe 2 and the main pipe 5 are arranged.
The suspension device 3 comprises a support end 31 and a suspension end 32, the support end 31 is mounted in the guide rail 13 and can move up and down in the guide rail 13 under the driving of the lifting motor 1, the suspension end 32 is of a hollow structure, a clamping groove is formed in the lower end of the suspension end 32, and during pipe drawing, a connecting groove which is processed on the circumference of the main pipe 5 in advance is connected with the clamping groove in the lower end of the suspension end 32, so that the main pipe 5 is fixed on the suspension device 3. The air blowing pipe 2 penetrates through the hollow structure of the suspension end 32, the upper end of the air blowing pipe 2 is connected with the suspension device 3 through a connecting piece, the connecting piece can adopt three steel bars arranged along the circumferential direction, and the upper position and the lower position of the air blowing pipe 2 can be adjusted according to the process requirement so as to control the air blowing position, as shown in the figure 1-2. During drawing, the gas blowing pipe 2 extends into the mother pipe 5, the bottom of the gas blowing pipe 2 is positioned at the contraction section of the joint of the mother pipe 5 and the glass pipe 7, and the mother pipe 5 can adopt a glass pipe with the diameter of more than 20 mm.
The air supply system supplies air to the air blowing pipe 2, nitrogen, compressed air and the like can be selected according to needs, and nitrogen is preferably used, so that the glass tube is clean and free of oil stains due to the ratio of nitrogen to compressed air, and the oxidation defects of the inner wall of the glass tube can be reduced. The gas supply system is equipped with precise flow and pressure control means.
The softening furnace 6 is of a tunnel type structure, resistance wires 61 are arranged on the wall of the tunnel for heating, the temperature is controlled in a closed loop mode, and the highest temperature can reach 900 ℃. In order to avoid the explosion and cracking of the main pipe 5 when entering, the softening furnace 6 is divided into a preheating zone 62 and a softening zone 63, the preheating zone 62 is arranged at the upper part of the softening furnace 6, and the main pipe 5 is formed in a shrinkage mode in the softening zone 63. Movable partitions 64 are installed between the preheating zone 62 and the softening zone 63 and at the upper and lower ends of the softening furnace 6 to adjust the opening degree according to the process requirements. Thermocouples 65 are provided in both the preheating zone 62 and the softening zone 63 to monitor the respective temperatures, as shown in fig. 3.
The driving wheel 9 and the guide wheel 8 of the traction mechanism are independent mechanisms, in order to ensure the straightness of the glass tube 7, the guide wheel 8 is preferably arranged above 2 levels, and the guide wheel 8 of 2 levels is arranged in the figures 1 and 2. The driving wheel 9 provides traction power and is composed of a pair of rollers, a transmission motor and a controller, wherein the rollers are connected with an output shaft of the transmission motor, and the controller adjusts the revolution of the transmission motor so as to control the speed of the rollers. The guide wheel 8 is a driven wheel, each stage is composed of a pair of rollers, and the main function is to ensure the position stability of the glass tube 7. The driving wheel 9 and the guide wheel 8 are provided with tightening devices 11, the distance between a pair of rollers on the driving wheel 9 and the distance between a pair of rollers on each stage of guide wheel 8 are adjusted by the tightening devices 11, and the central lines of each pair of rollers of the driving wheel 9 and the multistage guide wheel 8 coincide during drawing, namely the traction central axis of the driving wheel 9 coincides with the guide central axis of the guide wheel 8.
Two speeds need to be controlled during pipe drawing, namely the speed v of the descending of the main pipe 50And the drawing speed v of the glass tube 71，v0And v1The value of (b) is determined by the diameter ratio of the mother tube 5 to the glass tube 7 and the softening capacity of the softening furnace 6. v. of0And v1The two speeds being controlled by two separate control units, v0Controlled by the elevator motor 1, the speed of which is determined by the softening capacity of the softening furnace 6, v1Is defined by the ratio of the diameter and v0Calculated and controlled by the speed of the driving wheel 9.
A pipe diameter measuring instrument 12 is arranged between the traction mechanism and the cutting device 10, the pipe diameter of the glass pipe 7 is monitored by the pipe diameter measuring instrument 12, the pipe diameter measuring instrument 12 transmits a measuring signal to a controller of the driving wheel 9, if the measuring signal is not consistent with a target value after being compared with the target value, the speed v of the driving wheel can be adjusted by the controller1To adjust. The inner diameter of the glass tube 7 can be finely adjusted by the gas flow in the gas blowing tube 2, and the inner diameter is large when the gas flow is large, and is small otherwise.
The controller of the cutting device 12 passes the primary pulley speed v1And calculating the length of the glass tube 7, and driving the air cylinder to drive the cutter to cut off the glass tube 7.
When drawing, the suspension device 3 is lifted to a proper suspension position through the lifting motor 1, the main pipe 5 is hung on the suspension device 3, the bottom end of the main pipe 5 is positioned outside the softening furnace 6, and the central axis of the main pipe 5, the central axis of the blowing pipe 2, the central axis of the softening furnace 6 and the tractor are ensuredThe central lines between each pair of rollers are overlapped; determining the limit of the air blowing pipe 2 and descending the air blowing pipe 2 to ensure that the bottom end of the air blowing pipe 2 extends into the preheating zone 62 of the softening furnace 6 and is placed on the upper limit; turning on a power switch of the control cabinet to set the temperature of the softening furnace 6, and preserving heat after the softening furnace 6 is heated in place; opening the lifting motor 1 to manually adjust the speed, sending the main pipe 5 into a forming position of the softening furnace 6 (adjusted according to the pipe pulling condition and generally positioned in the center of the softening furnace), and standing the main pipe 5 for heating; and (5) lowering the air blowing pipe 2 to a lower limiting position to wait for the softening of the main pipe 5. Open furnace body bottom flashboard during female pipe 5 softens, guarantee to observe female pipe 5 and soften the condition through the bottom, set for female pipe falling speed v on elevator motor 1 simultaneously0Setting the traction speed v of the glass tube 7 on the driving wheel controller1(ii) a When the bottom end of the mother pipe 5 is softened, the glass pipe 7 is pulled out manually by using a draw hook to enter a first-stage guide wheel 8, and the elastic devices 11 at two sides are rotated to ensure that the glass pipe 7 can obtain enough traction force; the lifting motor 1 and the main traction wheel 9 are started to blow air, and the traction speed v is adjusted according to the outer diameter of the glass tube 7 actually measured by the tube diameter measuring instrument 121The blowing amount of the blowing pipe 2 is adjusted according to the roundness and the inner diameter of the glass pipe 7; setting the length of the product, adjusting the cylinder pressure of the cutting device 10, ensuring smooth cutting of the glass tube 7 without causing excessive damage to the end face, and collecting the glass tube 7; the gas blow pipe 2 is raised to the upper limit, the main pipe 5 is lifted out of the softening furnace 6, and the residual pipe still hung on the hanging device 3 is taken down by pliers.
The aforesaid stretches into the preheating zone 62 of softening furnace 6 with the bottom of gas blow pipe 2 and places on last spacing, and its purpose preheats the cold wind in the gas blow pipe 2, prevents that gas blow pipe 2 from blowing in cold wind to female pipe 5 and arouses female pipe 5 to explode and split, but if the position that the bottom of gas blow pipe 2 stretched into in softening furnace 6 is too low, will influence female pipe 5's whole shrink, causes the internal diameter deviation of glass pipe 7, need set for upper and lower spacing to the position of gas blow pipe 2 for avoiding above-mentioned problem in production. Wherein, the upper limit and the lower limit both refer to the position of the bottom end of the blowing pipe 2, the upper limit is the position 100mm in the preheating zone 62 (the position 100mm away from the top end of the preheating zone 62), and the lower limit is the working position when the blowing pipe 2 is molded and is positioned in the softening zone 63 (which can be adjusted according to actual conditions). The speed of feeding the main pipe 5 into the softening furnace 6 is adjusted according to the field situation, and the main pipe 5 cannot be cracked.
Claims (10)
1. Glass manages drawing device, its characterized in that: the device comprises a suspension mechanism, a blowing system, a softening furnace (6), a traction mechanism and a cutting device (10), wherein the suspension mechanism comprises a lifting motor (1), a suspension device (3) and a tower (4), a guide rail (13) is arranged on the tower (4), the suspension device (3) is arranged in the guide rail (13), and the lifting motor (1) drives the suspension device (3) to move up and down in the guide rail (13); the blowing system comprises a blowing pipe (2) and an air supply system, the blowing pipe (2) is arranged on the suspension device (3), and the air supply system is connected with the blowing pipe (2); the softening furnace (6) is positioned below the suspension device (3) and is arranged on the mounting plate at the lower part of the tower (4); the traction mechanism comprises a driving wheel (9) and a guide wheel (8), and is arranged below the softening furnace (6); the cutting device (10) is arranged below the traction mechanism, and the hanging central axis of the hanging device (3), the central axis of the blowing pipe (2), the central axis of the softening furnace (6), the traction central axis of the driving wheel (9) and the guide central axis of the guide wheel (8) coincide.
2. The glass tube drawing apparatus as defined in claim 1, wherein: the suspension device (3) comprises a support end (31) and a suspension end (32), the support end (31) is installed in the guide rail (13) and moves up and down in the guide rail (13) under the driving of the lifting motor (1), the suspension end (32) is of a hollow structure, and a clamping groove is formed in the lower end of the suspension end (32).
3. The glass tube drawing apparatus as defined in claim 2, wherein: the air blowing pipe (2) penetrates through the hollow structure of the suspension end (32), and the upper end of the air blowing pipe (2) is connected with the suspension device (3) through a connecting piece.
4. The glass tube drawing apparatus as defined in claim 1, wherein: and a pipe diameter measuring instrument (12) is arranged between the traction mechanism and the cutting device (10).
5. The glass tube drawing apparatus as defined in claim 1, wherein: the softening furnace (6) is divided into a preheating zone (62) and a softening zone (63), and movable partition plates (64) are arranged between the preheating zone (62) and the softening zone (63) and at the upper end and the lower end of the softening furnace (6).
6. The glass tube drawing apparatus as defined in claim 5, wherein: thermocouples (65) are arranged in the preheating zone (62) and the softening zone (63) to monitor the temperature.
7. The glass tube drawing apparatus as defined in claim 1, wherein: the driving wheel (9) is composed of a pair of rollers, a transmission motor and a controller, the rollers are connected with an output shaft of the transmission motor, and the controller adjusts the revolution of the transmission motor so as to control the speed of the rollers.
8. The glass tube drawing apparatus as defined in claim 1, wherein: the guide wheel (8) is a driven wheel and is arranged at more than 2 levels, and each guide wheel (8) is composed of a pair of rollers.
9. The glass tube drawing apparatus as defined in claim 1, wherein: and the driving wheel (9) and the guide wheel (8) are provided with a tightening device (11).
10. The glass tube drawing apparatus as defined in claim 1, wherein: the cutting device (10) comprises a cutter, an air cylinder and a controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022782353.5U CN213570141U (en) | 2020-11-26 | 2020-11-26 | Glass tube drawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022782353.5U CN213570141U (en) | 2020-11-26 | 2020-11-26 | Glass tube drawing device |
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| Publication Number | Publication Date |
|---|---|
| CN213570141U true CN213570141U (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022782353.5U Active CN213570141U (en) | 2020-11-26 | 2020-11-26 | Glass tube drawing device |
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| CN (1) | CN213570141U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114315113A (en) * | 2021-12-16 | 2022-04-12 | 武汉光谷长盈通计量有限公司 | Glass capillary drawing forming equipment |
-
2020
- 2020-11-26 CN CN202022782353.5U patent/CN213570141U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114315113A (en) * | 2021-12-16 | 2022-04-12 | 武汉光谷长盈通计量有限公司 | Glass capillary drawing forming equipment |
| CN114315113B (en) * | 2021-12-16 | 2024-05-03 | 武汉光谷长盈通计量有限公司 | Glass capillary tube drawing forming equipment |
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