CN201140301Y

CN201140301Y - Elastic pressure roller mechanism in automatic pipe fitting cutting machine

Info

Publication number: CN201140301Y
Application number: CNU2008200653258U
Authority: CN
Inventors: 晏良俊
Original assignee: Wuhan Institute of Technology
Current assignee: Wuhan Institute of Technology
Priority date: 2008-01-17
Filing date: 2008-01-17
Publication date: 2008-10-29
Anticipated expiration: 2018-01-17

Abstract

The utility model relates to an elastic pressure roller mechanism of a tube automatic cutting machine, which is composed of a spring, a pin shaft, a square tube, a square plate and a pressure roller, wherein the pin shaft is traversed through a spring hole which is coaxial with the pin shaft and fixes the square tube and the square plate together, the spring is installed in a spring installing groove of the square plate, one end of the spring is pressed on the square tube, the other end is pressed on the square plate, and the pressure roller is installed on the square plate. The pressure roller not only can rotate around the self pin shaft, but also can rotate along the square plate, and the torsional force comes from the elastic force of the spring. The utility model has the following advantages that a pipe can be reliably pressed on a drive wheel in the pipe cutting process, which guarantees that the pipe rotates with the drive wheel together, the pipe can automatically rotate along the movement of the drive wheel, thereby automatic material feeding and automatic material discharging of the pipe which finishes cutting are guaranteed, since the pressing and the loosening of the pressing wheel are finished through the elastic force of the spring, a power device of the two actions is reduced, and most importantly the control demands to the power device are avoided.

Description

Elastic press wheel mechanism in the pipe fitting automatic gas cutting machine

Technical field

The pipe fitting that the utility model relates in the transversely cutting processing of thin-wall pipe compresses and rotates freely device, facilitates the use the various thin-wall pipes of water cutter, emery wheel and laser cutting.

Background technology

In the pipe fitting automatic gas cutting machine, the rotation of pipe fitting is driven by three rotatable rubber wheels, wherein, it is driving wheel that one or two rubber wheel must be arranged, another one is the freewheel (seeing patent ZL200620096181.3 and ZL200620097435.3) that compresses or unclamp pipe fitting, during cutting pipes, this contact roller must be able to reliably compress; After cutting was finished, when another velamen processing pipe fitting entered cutting position, this contact roller must unclamp.Generally speaking, use a kind of power set, finish compressing of contact roller and unclamp as cylinder or cam mechanism, practice shows, adopts power set to finish its unusual difficulty of control automatically of action of contact roller, reason is that pipe fitting is at clamping, processing and the process of unclamping must be in full accord with the action request of cutting, otherwise pipe fitting just may be with tool damage when cutting, and to accomplish this point, the clamping of pinch roller and unclamp just very difficulty.

Summary of the invention

The purpose of this utility model is in order to overcome defective and the problem that above-mentioned prior art exists, elastic press wheel mechanism in a kind of pipe fitting automatic gas cutting machine is provided, the compressing and unclamp of contact roller, be to rely on the elastic force of spring to finish, contact roller is fixed on one by a rotating shaft can be on the plate of other axle rotation, on the pipe fitting that the effect of spring is pressed on contact roller to be cut, after cutting is finished, rely on intermittently rotatablely moving of dish, automatically contact roller is pushed open, the pipe fitting finished of cutting will roll down automatically in the effect of gravity, next root pipe fitting to be cut also can with dish intermittently put in place and automated exchanged cutter put in place.

The technical scheme that its technical problem that solves the utility model adopts is:

Elastic press wheel mechanism in the pipe fitting automatic gas cutting machine, form by spring, bearing pin, square tube, square plate, pinch roller, bearing pin passes with the coaxial spring eye of bearing pin and with square tube and square plate and is fixed together, the spring of the spring side of being installed in plate is installed in the groove, one end of spring be pressed in square tube on, on the other end side of the being pressed in plate, on the square plate pinch roller is installed.

Pinch roller is installed in one can be equipped with spring on this bearing pin on the square plate that a bearing pin rotates, the elastic force side of the making plate of spring is pressed on the fixing square tube all the time.

Of the present utility model having the following advantages: in the pipe fitting cutting process, can reliably pipe fitting be pressed on the driving wheel, guarantee that pipe fitting reliably rotates with driving wheel, as long as the axle center of driving wheel is fixed, the axis of pipe fitting just maintains static in cutting process, thereby pipe fitting only rotates and can radial motion when guaranteeing cutting, after cutting is finished, pipe fitting can move along with the motion of driving wheel automatically automatically, thereby guaranteed the pipe fitting automatic blanking that cutting has been finished, simultaneously, pipe fitting to be cut also can put in place by automated exchanged cutter, because compressing and unclamping of contact roller is the elastic force effect of leaning on spring, just reduced the power set of these two actions, most importantly avoided the control requirement to power set.The utility model provides a kind of flexible hold down gag, not only can finish reliably to compress and action of releasing, and, without any need for power set, therefore there is not control problem yet.

Description of drawings

Fig. 1 is the total duty construction schematic diagram of the course of work of the present utility model.

Fig. 2 a is an overall structure front view of the present utility model.

Fig. 2 b is an overall structure side view of the present utility model.

Fig. 3 a is side's plate structure front view of the present utility model.

Fig. 3 b is side's plate structure side view of the present utility model.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

Shown in Fig. 2 a, Fig. 2 b, the utility model is made up of spring 7, bearing pin 9, square tube 10, square plate 11, pinch roller 12, bearing pin 9 passes with coaxial spring 7 holes of bearing pin 9 and with square tube 10 and square plate 11 and is fixed together, the spring of spring 7 side's of being installed in plates 11 is installed in the groove 15, one end of spring 7 be pressed in square tube 10 on, on the other end side of the being pressed in plate 11, on the square plate 11 pinch roller 12 is installed.

Pinch roller 12 is installed in one can be on the square plate 11 that bearing pin 9 rotates, on this bearing pin 9 spring 7 is installed, the elastic force side of the making plate 11 of spring 7 is pressed on the fixing square tube 10 all the time, thereby has guaranteed the uniformity of the initial position of a plurality of elastic press wheel mechanism, to realize that multicutter cuts simultaneously.

Fig. 3 a, Fig. 3 b are the detailed structure view of part side's plate 11 of most critical in the elastic press wheel mechanism, 13 is the fixing screw hole of elastic press wheel mechanism among the figure, 14 side's of being plate rotating shaft installing holes are the bearing pin installing hole just, 15 are spring installation groove, 16 are pinch roller installation square hole, 17 is the rotating shaft installing hole of pinch roller, the utility model is fixed on the installing plate 3 by fixing screw hole 13, bearing pin 9 is fixed together square tube 10 and square plate 11 by bearing pin installing hole 14, and pinch roller 12 is installed on rotating shaft installing hole 17 side's of being fixed on plates 11 of square hole 16 and pinch roller by pinch roller.

Figure 1 shows that the overall operating mode key diagram of the utility model work, driving wheel 1 can be made spinning motion around its axis among the figure, thereby drive the pipe fitting rotation, on the other hand, it is installed in intermittently and coils on 6, therefore also can do revolution motion with 6, thereby, simultaneously pipe fitting clamping to be processed be put in place the pipe fitting unloading that machines; 2 is processed pipe fitting among Fig. 1, elastic press wheel mechanism 4 is fixed on the installing plate 3, in the pipe fitting process, because the effect of elastic force, the assurance pipe fitting abuts against all the time on the driving wheel 1 and with driving wheel 1 and rotates, 5 is cutting tool, along with the feed motion of cutter 5, pipe fitting just is cut, after cutting is finished, owing to intermittently take turns 6 rotation, two driving wheels 1 drive pipe fitting and push contact roller open, and being cut the pipe fitting of finishing will roll down automatically, like this, the compress and release action of contact roller is just finished automatically, and does not need other action to finish.

Claims

1, the elastic press wheel mechanism in the pipe fitting automatic gas cutting machine, form by spring, bearing pin, square tube, square plate, pinch roller, it is characterized in that: bearing pin passes with the coaxial spring eye of bearing pin and with square tube and square plate and is fixed together, the spring of the spring side of being installed in plate is installed in the groove, one end of spring be pressed in square tube on, on the other end side of the being pressed in plate, on the square plate pinch roller is installed.