CN208200733U - A kind of glass tube dragger with stress release mechanism - Google Patents

Abstract

A glass tube pulling machine with a stress release mechanism, belonging to the technical field of glass production, including a rotating bracket and a pulling bracket, the rotating bracket and the pulling bracket are connected through a mandrel; two sets of lower pulleys and a plurality of lower pressure rollers are connected to the pulling bracket The two sets of lower pulleys are connected through the lower traction belt; the driving wheel, the driven wheel and multiple upper pressure rollers are connected on the rotating bracket, and the driving wheel and the driven wheel are connected through the upper traction belt; the traction bracket and the rotating bracket are connected through the screw nut assembly To adjust the angle, the screw nut assembly includes an adjusting screw and an adjusting nut that are threaded, the adjusting nut is connected to the rotating bracket, an angle adjustment hole is set on the rotating bracket, and an adjusting support is connected to the traction bracket, the upper part of the adjusting support is located at In the angle adjustment hole, one end of the adjustment screw rod passes through the upper part of the adjustment support and is locked by a locking nut. The utility model reduces the preload deformation of the glass tube to ensure the straightness requirement of the finished glass tube.

Description

A glass tube pulling machine with a stress release mechanism

technical field

The utility model belongs to the technical field of glass production and relates to an improvement of glass tube stretching and forming equipment.

Background technique

The glass flow of the glass melting furnace, under the action of the rotating molding machine and the appropriate amount of compressed air in the molding machine, blows out a glass tube with a certain shape, and is sent to the glass tube stretching tractor through the roller table Among them, the glass tube horizontal pulling machine is a special equipment for pulling tubes. The traditional glass pulling machines are all designed to improve the processing efficiency of glass tube processing and reduce the broken tube rate. Since the glass tube is drawn in a spiral motion during the tube drawing process, in fact, the tube generates a helical preload during the tube drawing process. When the glass tube is cut, the preload stress is released instantly, and the finished glass tube is produced. Microbending deformation.

The utility model focuses on the higher requirements of the modern glass manufacturing industry and the improvement of people's living standards on the quality of the finished glass tube, such as the straightness and roundness requirements of the glass tube, and improves the design of the traditional glass tractor. , to solve the stress release problem in the traction process.

In order to solve the deformation problem of the finished glass tube due to the preload in the spiral traction process, so that the finished glass tube is pulled out in a straight line, it is necessary to improve the design of the traction mechanism. If the two groups of traction belts can form a relative angle of a certain size on the horizontal plane that is opposite to the direction of the spiral advance of the glass tube, and the glass tube still passes through it during the traction process, then the glass tube can be subjected to a certain degree of friction during the spiral traction process. The rubbing and rotating force opposite to the advancing direction of the thread can release the preloaded load during the traction process, thus ensuring the straightness of the finished glass tube.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a glass tube tractor with a stress release mechanism to ensure the straightness of the finished glass tube.

The purpose of this utility model is achieved in that a glass tube tractor with a stress release mechanism includes a rotating bracket and a fixed traction bracket, the rotating bracket is located above the traction bracket and is connected by a vertical mandrel; Two sets of lower pulleys and multiple lower pressure rollers are connected to the traction bracket, and the two sets of lower pulleys are connected through the lower traction belt transmission, and the upper part of each lower pressure roller is tangent to the inner surface of the lower traction belt; Connect the driving wheel, the driven wheel and a plurality of upper pressure rollers, the driving wheel and the driven wheel are connected through the upper traction belt, and the lower part of each upper pressure roller is tangent to the inner surface of the upper traction belt; the traction bracket and the rotating bracket are passed through the wire The rod nut assembly adjusts the angle. The screw nut assembly includes an adjusting screw rod and an adjusting nut that are threaded. The upper part is located in the angle adjustment hole, and one end of the adjustment screw rod passes through the upper part of the adjustment support and is locked by a lock nut.

The utility model uses two sets of synchronously tensioned traction belts that operate relatively to make the glass tube pass between the two sets of belts, and adjust the positive pressure between the upper and lower pressure rollers, thereby generating certain friction between the glass tube and the traction belt. The force makes the glass tube move forward in a spiral pulling motion to complete the horizontal drawing and forming of the glass tube.

The rotating bracket can be adjusted at a certain angle relative to the traction bracket in the horizontal plane in the direction opposite to the glass tube helical advance angle. Adjust the timing belt device on the upper side to produce an angle of ±4° in the horizontal direction, and the lower belt cannot be adjusted. A certain intersection angle is formed on the horizontal plane between the two sets of belts, and the glass tube is pulled out in a straight line through the middle, thereby achieving the purpose of improving the quality of the glass tube and eliminating bending.

The beneficial effects of the utility model are: the stress release mechanism of the glass tube horizontal tractor is to solve the preload problem of the glass tube in the process of pulling the tube, reduce the preload deformation of the glass tube, and ensure the straightness of the finished glass tube. .

One end of the upper traction belt and the lower traction belt of the utility model is a glass tube feed end and the other end is a glass tube discharge end, and the screw nut assembly is located at the glass tube feed end.

In the utility model, an angle pointer is connected to the rotating bracket at the feeding end of the glass tube, and a scale is arranged on the traction bracket at the feeding end of the glass tube.

The upper tangent point of each lower pressure roller and the lower traction belt of the utility model and the upper tangent point of the two sets of lower pulleys and the lower traction belt are on the same horizontal plane; the lower tangent point of each upper pressure roller and the upper traction belt is on the same horizontal plane , the driving wheel and the driven wheel are respectively on the same horizontal plane as the lower tangent point of the upper traction belt, and the lower tangent point of the upper pressure roller and the upper traction belt is lower than the lower tangent point of the driving wheel and the upper traction belt.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a view from direction A in Fig. 1 .

Fig. 3 is a view from direction C in Fig. 2 .

Fig. 4 is a view along B-B in Fig. 2 .

In the figure, 1. driving wheel, 2. upper traction belt, 3. rotating bracket, 4. lower pressure roller, 5. upper pressure roller, 6. driven wheel, 7. traction bracket, 8. glass tube, 9. mandrel , 10. Adjusting screw, 11. Scale, 12. Adjusting nut, 13. Adjusting support, 14. Lock nut, 15. Round nut, 16. Lower pulley, 17. Lower traction belt, 18. Screw nut assembly , 19. Angle adjustment hole, 20. Angle pointer.

Detailed ways

As shown in Figures 1-4, the glass tube puller with a stress release mechanism includes a rotating bracket 3 and a fixed pulling bracket 7, the rotating bracket 3 is located above the pulling bracket 7 and connected by a vertical mandrel 9.

Two groups of lower pulleys 16 and a plurality of lower pressure rollers 4 are connected on the traction bracket 7, two groups of lower pulleys 16 are connected by transmission of the lower traction belt 17, and the top of each lower pressure roller 4 is in contact with the inner surface of the lower traction belt 17. Cut, the upper tangent point of each lower pressure roller 4 and the lower traction belt 17 and the upper tangent point of the two groups of lower pulleys 16 and the lower traction belt 17 are on the same horizontal plane.

Connect driving wheel 1, driven wheel 6 and a plurality of upper pressure rollers 5 on the rotating bracket 3, driving wheel 1 and driven wheel 6 are connected by transmission of upper traction belt 2, and the bottom of each upper pressure roller 5 is all connected with the inner part of upper traction belt 2 The surface is tangent, each upper pressure roller 5 is on the same level as the lower tangent point of the upper traction belt 2, the driving pulley 1 and the driven pulley 6 are respectively on the same level as the lower tangent point of the upper traction belt 2, and the upper pressure roller 5 is on the same level as the upper traction belt 2. The lower tangent point of the belt 2 is lower than the lower tangent point of the driving pulley 1 and the upper traction belt 2 . One end of the upper traction belt 2 and the lower traction belt 17 is the glass tube feed end and the other end is the glass tube discharge end, and the stretched glass tube 8 passes between the upper traction belt 2 and the lower traction belt 17.

The angle of the traction bracket 7 and the rotating bracket 3 is adjusted through the screw nut assembly 18, and the screw nut assembly 18 is located at the feeding end of the glass tube. The screw nut assembly 18 comprises an adjusting screw 10 and an adjusting nut 12 threaded, the adjusting nut 12 is connected to the rotating bracket 3 through a mounting hole, the adjusting nut 12 is connected to the rotating bracket 3 cylindrical surface, and a certain length is set on the rotating bracket 3 Angle adjustment hole 19. Connect the adjustment support 13 on the traction support 7, the adjustment support 13 is connected with the cylindrical surface of the traction support 7, the bottom of the adjustment support 13 is connected with the round nut 15, the top of the adjustment support 13 is located in the angle adjustment hole 19, adjust the screw rod One end of 10 passes through the upper part of the adjustment support 13 and is locked by a locking nut 14 . An angle pointer 20 is connected to the rotating bracket 3 at the feeding end of the glass tube, and a scale 11 is set on the traction bracket 7 at the feeding end of the glass tube, and the angle pointer 20 is arranged correspondingly to the scale 11.

The rotating bracket 3 can be adjusted to a certain angle relative to the traction bracket 7 in the horizontal plane in the direction opposite to the angle in which the glass tube spirals forward. The timing belt device on the upper side can adjust the angle of ±4° in the horizontal direction, and the lower belt cannot be adjusted. , so that a certain intersection angle is formed between the two sets of belts on the horizontal plane.

When not adjusting, the adjusting screw mandrel 10 is arranged in parallel with the upper pressure roller 5 . When adjusting, the adjusting screw rod 10 is rotated, and the adjusting nut 12 will move relative to the axial direction of the adjusting screw rod 10 . Because the adjusting nut 12 is connected with the rotating bracket 3, the rotating pair is formed between the rotating bracket 3 and the traction bracket 7 through the mandrel 9, and the relative movement of the adjusting nut 12 relative to the adjusting screw rod 10 is fixed, and the upper part of the adjusting support 13 is in the angle adjustment hole. The position in 19 will change, and at the same time drive the adjustment support 13 to rotate, and drive the adjustment screw rod 10 to change the angle together, that will produce the rotation of the rotating bracket 3 relative to the traction bracket 7 within a certain angle range with the mandrel 9 as the rotation center , the size of the relative rotation angle can be read from the scale 11, and the relative rotation angle that can be produced between the two supports of this mechanism is ±4°.

Claims (4)

1. a kind of glass tube dragger with stress release mechanism, it is characterised in that: including runing rest and fixed traction Bracket, runing rest are located at the top of towing bracket and are connected by vertical mandrel；Two groups are connected on the towing bracket Bottom pulley and Duo Gen lower compression roller, two groups of bottom pulleys are sequentially connected by lower traction belts, the top of every lower compression roller with The inner surface of lower traction belts is tangent；Driving wheel is connected on the runing rest, pressure roller on driven wheel and Duo Gen, driving wheel with Driven wheel is sequentially connected by upper traction belts, and the lower part of every upper pressure roller is tangent with the inner surface of upper traction belts；It is described By feed screw nut's assembly adjusting angle, feed screw nut's assembly includes the adjusting screw rod being threadedly coupled for towing bracket and runing rest And adjusting nut, adjusting nut are connected on runing rest, and angle adjustment holes are arranged on runing rest, are connected on towing bracket Adjusting support is connect, the top for adjusting support is located in angle adjustment holes, and the one end for adjusting screw rod, which passes through, to be adjusted holder top and lead to Cross locking nut locking.

2. according to claim 1 with the glass tube dragger of stress release mechanism, it is characterised in that: the upper traction skin One end of band and lower traction belts is that the glass tube feed end other end is glass tube discharge end, and the feed screw nut's assembly is located at glass Glass pipe feed end.

3. according to claim 2 with the glass tube dragger of stress release mechanism, it is characterised in that: in the glass tube Connect angle indicator on the runing rest of feed end, scale be set on the towing bracket of glass tube feed end, angle indicator with The corresponding arrangement of scale.

4. according to claim 1 with the glass tube dragger of stress release mechanism, it is characterised in that: every lower compression roller with The incision superius of lower traction belts and two groups of bottom pulleys and the incision superius of lower traction belts are in same level；Every upper pressure roller Incision inferius with upper traction belts in same level, driving wheel and driven wheel respectively the incision inferius with upper traction belts same On one horizontal plane, the incision inferius of upper pressure roller and upper traction belts is lower than the incision inferius of driving wheel and upper traction belts.