CN207682488U - PE pipe no-chip cutting devices - Google Patents

Abstract

The utility model proposes a kind of PE pipe no-chip cutting devices, including turntable, two groups of centrosymmetric cutting assemblies are provided on the turntable, cutting assembly includes cutter, tool apron and motor, cutter and tool apron are connected to the front end of rack together, the rack is eccentrically set on turntable, the rack rear end connects limit switches, driven tooth shaft, active gear shaft and corresponding tooth shaft bearing are provided on the turntable, the output axis connection of active gear shaft and motor, is symmetrical arranged that there are two the tubing that position-limited wheel is used for fixing cut end on the turntable.The utility model completes the task of annular cutting using rack pinion, it is smooth to cut the notch generated, the cylindricity of tubing keeps relatively good, cutting rate can be not only improved using two centrosymmetric cutting assemblies but also the barycenter of turntable can be ensured in geometric center, stability of rotation, effective service life are longer.

Description

PE pipe no-chip cutting devices

Technical field

The utility model belongs to pipe cutting equipment technical field more particularly to a kind of PE pipe no-chip cutting devices.

Background technology

China's plastic conduit have developed rapidly, and quality is being continuously improved.Currently, having preliminarily formed with polyvinyl chloride pipe, poly- second Plastic tube industry based on alkene (PE) pipe and polypropylene (PP-R) pipe.Wherein polyethylene (PE) pipe is due to its own unique advantage It is widely used in building water supply, construction drainage, buried drain pipe, building and heating, gas transmission and distribution, appendix, electrician and electricity Interrogate protection sleeve pipe, industrial pipe, agricultural pipe etc..

It in the production process of PE tubing, needs to cut PE tubing using cutting machine, Chipless cutting machine is not because As traditional lathe cut metal material will produce a large amount of scrap, so Chipless cutting machine becomes in tubing cutting operation widely The machinery used.Different cutting machine or cutting mode can be used in different cutting operations, such as need to obtain target long The mode that the smaller tubing people of degree mostly use greatly crush-cutting is cut, and if necessary to target length, longer tubing people are usual It is cut with the mode into withdrawing of cylinder or oil cylinder；Need component count to be mounted more using the cutting of the latter's method and Maintenance cost is higher, and meeting air pressure and the unstable situation of hydraulic pressure on occasion can cause tubing cutting to be not thorough；Furthermore existing cutting Only clamping device is just arranged in pipe outlet in machine, and tubing often has becoming for circular runout before and after the moment that will be cut off Gesture has the case where clout to generate notch, influences the smooth quality of notch, usually also needs to people and carries out abrasive material, not only It influences working efficiency and also adds manufacturing cost；In addition, some Chipless cutting machines are only provided with one group of cutter and motor, turntable Overall quality it is unbalanced, thus make the rotary inertia of turntable bigger than normal, influence the service life of turntable.

Utility model content

Technical problem present in cutter device of the utility model for above-mentioned Chipless cutting machine, proposes a kind of design Rationally, simple in structure, stability is high and the thorough PE pipe no-chip cutting devices of cutting.

In order to achieve the above object, the technical solution adopted in the utility model is a kind of PE pipes provided by the utility model Material no-chip cutting device, including turntable are provided with two groups of centrosymmetric cutting assemblies, the cutting assembly packet on the turntable Cutter, tool apron and motor are included, the cutting edge of described two cutters is parallel to each other, and the cutter and tool apron are connected to rack together Front end, the rack are eccentrically set on turntable, driven tooth shaft stool is provided on the turntable and engaged with rack from Moving teeth axis, the active gear shaft for being provided with active gear shaft bearing and being engaged with rack on the turntable, the active gear shaft pass through The output axis connection of shaft coupling and motor, the rack rear end connect limit switches, be symmetrical arranged on the turntable there are two Position-limited wheel, the line of centres of described two position-limited wheels and the line that two cutting edges cross core are orthogonal.

Preferably, being provided with the linear ramp moved for rack on the turntable.

Preferably, the junction of the tool apron and rack is ladder-like, the back of tooth of the tool apron bottom surface and rack is same The upper surface of one plane, the tool apron is less than crest top land.

Preferably, the shape of the position-limited wheel is dumbbell shaped.

Compared with prior art, it is with good effect the advantages of the utility model,

1, PE pipe no-chip cutting devices provided by the utility model complete the task of annular cutting using rack pinion, Relatively simple for structure and cost involved by relative usage oil pump and air pump is relatively low, especially maintenance cost, and annular cutting Notch than being generated into withdrawing cutting is more smooth, and the cylindricity of tubing keeps relatively good.

2, PE pipe no-chip cutting devices provided by the utility model not only may be used using two centrosymmetric cutting assemblies To improve cutting rate and can ensure the barycenter of turntable in geometric center, rotary inertia is smaller, stability of rotation, in certain journey It ensure that effective service life on degree.

3, cutter provided by the utility model is close to turntable, it is ensured that the stability of cutting, and also tubing is in position-limited wheel And circular runout can be generated to avoid the moment that will be cut off in tubing under the action of cutter, cutwork is steady, to subtract Lack cutting and generated tubing clout finally, ensure that the flatness of notch.

4, limit switch provided by the utility model can control the amount of feeding of cutter, high degree of automation.

Description of the drawings

It is required in being described below to embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment The attached drawing used is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the utility model, For those of ordinary skill in the art, without having to pay creative labor, it can also obtain according to these attached drawings Obtain other attached drawings.

Fig. 1 is the overall structure figure for the PE pipe no-chip cutting devices that embodiment provides；

Fig. 2 is the vertical view for the PE pipe no-chip cutting devices that embodiment provides；

In above each figure, 1, turntable；2, cutter；3, tool apron；4, motor；5, rack；6, limit switch；7, driven tooth shaft； 71, driven tooth shaft stool；8, active gear shaft；81, active gear shaft bearing；9, position-limited wheel；10, linear ramp.

Specific implementation mode

It is below in conjunction with the accompanying drawings and real in order to be more clearly understood that the above objects, features, and advantages of the utility model Example is applied to be described further the utility model.It should be noted that in the absence of conflict, embodiments herein and reality The feature applied in example can be combined with each other.For sake of convenience, hereafter such as there are "upper", "lower", "left", "right" printed words, only indicate It is consistent with the upper and lower, left and right direction of attached drawing itself, restriction effect is not played to structure.

Many details are elaborated in the following description in order to fully understand the utility model, still, this practicality Novel to implement using different from other modes described here, therefore, the utility model is not limited to be described below The limitation of the specific embodiment of specification.

Embodiment, as shown in Figure 1 and Figure 2, PE pipe no-chip cutting devices provided by the utility model, including turntable 1, one As, mounting plate and driving motor are provided with behind turntable, driving motor meeting driving disc rotation, the turntable is the prior art In common components, the present embodiment just repeats no more.

The utility model emphasis improvements are on cutting assembly, specifically, two groups of centers pair are provided on the turntable 1 The cutting assembly of title, the cutting assembly include cutter 2, tool apron 3 and motor 4, and the cutter 2 and tool apron 3 are connected to tooth together The front end of item 5,5 eccentric setting of the rack on the turntable 1, are provided with the linear ramp moved for rack 5 on the turntable 1 10, the driven tooth shaft 7 for being provided with driven tooth shaft stool 71 and being engaged with rack on the turntable 1 is provided on the turntable 1 Active gear shaft bearing 81 and the active gear shaft 8 engaged with rack, the output that the active gear shaft 8 passes through shaft coupling and motor 4 Axis connection, the rack rear end connect limit switches 6, and the motor 4 is powered on by plant-grid connection device；It designs in this way Benefit is that motor 4 drives active gear shaft 8 to rotate, and then provides the depth of cut in 10 linear movement of linear ramp with carry-over bar 5, Linear ramp 10 can keep 5 smooth motion of rack, and active gear shaft 8 and driven tooth shaft 7 can play the work of stationary rack 5 With, meanwhile, it not only can improve cutting rate using two centrosymmetric cutting assemblies but also can ensure the barycenter of turntable In geometric center, rotary inertia is smaller, stability of rotation, ensure that effective service life to a certain extent.The utility model The limit switch of offer stops continuing to feed after can making tool motion to predetermined length, high degree of automation.

In order to improve cutting quality, the junction of tool apron 3 provided by the utility model and rack 5 is ladder-like, facilitate by Tool apron 3 is firmly secured on rack 5, and the bottom surface of the tool apron 3 is with the back of tooth of rack 5 in same plane, in this case, cutter It is close to linear ramp feeding cutting, it is ensured that the smooth quality of stability and notch of cutting；The upper surface of the tool apron 3 simultaneously Tool apron 3 is avoided to be stuck under driven tooth shaft 7 less than crest top land.

Further, it is symmetrical arranged there are two the cut ends that position-limited wheel 9 is used for fixing tubing, does so on the turntable 1 Allow for existing Chipless cutting machine and clamping device be just only set in pipe outlet, and tubing the moment that will be cut off often The trend for having circular runout has the case where clout to generate notch, influences the smooth quality of notch.The utility model will limit Position wheel 9 is shaped to as dumbbell shaped to provide one group of radial equilibrant force；In addition one group of radial equilibrant force From two cutters, the cutting edge of described two cutters is parallel to each other, the line of centres of described two position-limited wheels and two cutting edges The line for crossing core is orthogonal, and in this case, tubing can be to avoid will cut under the action of position-limited wheel 9 and cutter 2 Disconnected moment generates circular runout, generates tubing clout finally to reduce cutting, ensure that the flatness of notch；Meanwhile During the cutting process, entire cutter device stress balance and stock removal action show steady.

In addition, why cutting assembly eccentric setting is because the cutter of eccentric setting is compared to radial by the utility model For direct feed, the tubing that the cutter of eccentric setting cuts identical tube wall needs to lengthen cutting edge, the work area of cutting edge Increase, the active force counter-force born on unit area and unit length is smaller, and service life is longer, and previous cutter radial is straight The radial bearing reaction bigger then born into cutwork area is tapped into, crushing knife, but also the fixed parts such as bearing connected to it are not only easy The service life of part is also affected.

The above descriptions are merely preferred embodiments of the present invention, is not to make other forms to the utility model Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent The equivalent embodiment of variation is applied to other fields, but every without departing from the content of the technical scheme of the utility model, according to this reality With novel technical spirit to any simple modification, equivalent variations and remodeling made by above example, it is new to still fall within this practicality The protection domain of type technical solution.

Claims (4)

1. a kind of PE pipe no-chip cutting devices, including turntable, which is characterized in that be provided with two groups of central symmetries on the turntable Cutting assembly, the cutting assembly includes cutter, tool apron and motor, and the cutting edge of described two cutters is parallel to each other, described Cutter and tool apron are connected to the front end of rack together, and the rack is eccentrically set on turntable, is provided on the turntable driven Tooth shaft bearing and the driven tooth shaft engaged with rack are provided with active gear shaft bearing on the turntable and are engaged with rack Active gear shaft, the active gear shaft connect limit switches by the output axis connection of shaft coupling and motor, the rack rear end, Position-limited wheel there are two being symmetrical arranged on the turntable, the line of centres of described two position-limited wheels and two cutting edges cross the company of core Line is orthogonal.

2. PE pipe no-chip cutting devices according to claim 1, which is characterized in that be provided with for rack on the turntable Mobile linear ramp.

3. PE pipe no-chip cutting devices according to claim 2, which is characterized in that the junction of the tool apron and rack To be ladder-like, for the back of tooth of the tool apron bottom surface and rack in same plane, the upper surface of the tool apron is less than crest top land.

4. PE pipe no-chip cutting devices according to claim 3, which is characterized in that the shape of the position-limited wheel is dumbbell Shape.