CN2569939Y - Automatic bending equipment for plastic-plating steel wire - Google Patents

Abstract

The utility model relates to an automatic bending device for a plastic-plating steel wire. The body of the device is provided with a positioning strip; two fixing central pins are formed into integration with the positioning strip; two circular discs are provided with eccentric pins; press strips are arranged on the shafts of the eccentric pins; the centers of the circular discs and the central pins are eccentrically placed; the press strips do not make straight line movement corresponding to the eccentric pins in the process that the press strips bends the steel wire. A motor drives the circular discs to rotate; the plastic-plating steel wire is bent and deformed through the press strips on the shafts of the eccentric pins, the bending process is completed, the motor oppositely rotates, and the press strips retracted to the original position. In the whole process, a hydraulic system or a pneumatic system causes both ends of the steel wire to be simultaneously bent; the bending angle is regulated by a regulating screw. The utility model can cause both end of the plastic-plating steel wire two be automatically bent to the required angle without destroying a plastic-plating layer device.

Description

Device for automatic bending head of steel wire with plastic plated

Technical field

The utility model relates to a kind of device for automatic bending head of steel wire with plastic plated that steel wire with plastic plated two can be bent to automatically required different angles simultaneously.

Background technology

Be different from the bending of general steel wire for the elbow of steel wire with plastic plated, it often not only needs two is bent to required angle, and requires in crooked steel wire, does not destroy plating and moulds layer.General bend pipe or elbow equipment because bending point force localization or application point move on steel wire, will destroy plating and mould layer, therefore.At present, also be in manually and single elbow carries out for the steel wire with plastic plated elbow, labor strength is big, and efficient is low.

Summary of the invention

The purpose of this utility model provides and a kind of steel wire with plastic plated two can simultaneously be bent to required different angles automatically, does not destroy the device for automatic bending head of steel wire with plastic plated that layer is moulded in plating.

The purpose of this utility model is achieved like this: this device is equipped with body and a positioning strip of laying steel wire with plastic plated to be curved, positioning strip two respectively is equipped with a fixing centrepin, disk and on the eccentric pin shaft that is equipped with, the press strip that can rotate around it is housed on the eccentric pin shaft, be equipped with a baffle plate on the body, be equipped with an adjustment screw on the baffle plate, disc centre and centrepin center are respectively arranged with the eccentric throw of level and vertical two directions, and disk is connected with rotary actuator.During work, press strip passes through the press strip crooked steel wire by behind the last steel wire by cam pin.After bending puts in place, drive disk, press strip by rotary actuator, and under the guiding of baffle plate, return original position.

Mould layer for further protection plating and be not destroyed, have the half-arc groove that is harmonious with steel wire on press strip and the plane that steel wire with plastic plated contacts.In order to make press strip reposition smoothly, the eccentric throw between disc centre and centrepin should make in the whole BENDING PROCESS, and cam pin does not have straight line to move relative to press strip in the disk rotation process.The angle of the required rotation of BENDING PROCESS can be regulated by adjustment screw.

The utility model is owing to adopted the press strip that is contained on the eccentric pin shaft; by rotary actuator driver plate, cam pin, press strip; make steel wire with plastic plated flexural deformation; owing to do not relatively move between press strip and the steel wire; press strip has disperseed the concentrated active force of cam pin again; having protected the steel wire plating to mould under the prerequisite of layer effectively, realized the elbow technology at steel wire with plastic plated two.Because disc centre of the present utility model is that cam pin relative press strip in whole elbow process is not relatively moved with eccentric throw between cam pin, thereby has simplified the back body of press strip greatly.Elbow finishes, control rotary actuator backward rotation, and press strip just can be followed disk, by the guiding of baffle plate, returns original position easily.Whole process can make steel wire two finish elbow technology simultaneously automatically by hydraulic pressure or pneumatic system.Angle of bend also can be regulated arbitrarily easily by adjustment screw.

Description of drawings

Fig. 1 is a structural front view of the present utility model,

Fig. 2 is a vertical view of the present utility model;

Fig. 3 is the press strip left view;

Fig. 4 is a head bending device major parameter schematic diagram.

The specific embodiment

By Fig. 1, Fig. 2, Fig. 3, Fig. 4 the utility model specific embodiment is described, this device is equipped with body 1 and a positioning strip 2 of laying steel wire with plastic plated 3 to be curved, positioning strip two respectively is equipped with a fixing centrepin 10, disk 6 and on the eccentric pin shaft 7 that is equipped with, the press strip 8 that can rotate around it is housed on the eccentric pin shaft, has the half slot 11 that matches with the steel wire with plastic plated external diameter on press strip 8 medial surfaces.Be equipped with a baffle plate 4 on the body, be equipped with an adjustment screw 5 on the baffle plate, disc centre and centrepin center are respectively arranged with the eccentric distance e of level and vertical two directions _xAnd e _Y.e _xAnd e _yDetermine as follows: under the situation that the inner arc radius r of steel wire with plastic plated diameter d and elbow determines, determine the eccentric throw R apart from δ and cam pin center relative disc centre of press strip compression face to the cam pin center.On above basis, set the horizontal eccentric distance e at the relative centrepin of disc centre center earlier _xWith vertical eccentric distance e _yCouple idol arm a in the time of can calculating press strip and centrepin and just begun crooked steel wire by above parameter ₀b ₀Reach the angle [alpha] that disk turns over ₀, when disk was rotated further, the angle [alpha] that can further rotate according to disk was determined angle θ and the length S=θ r thereof that press strip and centrepin are walked around on centrepin the formed couple idol of steel wire arm ab, steel wire, as long as satisfy ab+S=a ₀b ₀Condition, can think the e that at this moment sets _xAnd e _yBe required level and vertical eccentric throw, guarantee press strip in the process of crooked steel wire, press strip does not relatively move to cam pin, only relatively rotates.Disk is connected with rotary actuator, has locating slot on the positioning strip, treats that crooked steel wire with plastic plated just is placed in the groove.Centrepin 10 is connected with positioning strip, is fixed, is integral with positioning strip, at two of positioning strip.The centre-to-centre spacing H of centrepin is exactly center of arc's distance in the steel wire elbow.Press strip can rotate around eccentric pin shaft.The motor drive shaft center is disc centre.It is respectively e with the centrepin center in the eccentric throw of level and vertical two directions _xAnd e _y, they should make press strip in the process of crooked steel wire, and press strip does not have straight line to move relative to eccentric pin shaft 10.As embodiment of the present utility model,, when steel wire inner surface bending curvature radius is 4 millimeters, when the eccentric throw of cam pin is 23 millimeters, get e at crooked 3.5 millimeters steel wire with plastic plated _x=4 millimeters e _y=6 millimeters is suitable.When hydraulic pressure or atmospheric control are rotated rotary actuator, can make device realize automatic crooked steel wire with plastic plated, during the rotary actuator counter-rotating, under the guiding of baffle plate 4, press strip is return original position.

Claims (3)

1. device for automatic bending head of steel wire with plastic plated, it is characterized in that, this device is equipped with body (1) and a positioning strip (2) of laying steel wire with plastic plated to be curved (3), positioning strip two respectively is equipped with a fixing centrepin (10), disk (6) and on the eccentric pin shaft (7) that is equipped with, the press strip (8) that can rotate around it is housed on the eccentric pin shaft, be equipped with a baffle plate (4) on the body, be equipped with an adjustment screw (5) on the baffle plate, disc centre and centrepin center are respectively arranged with the eccentric distance e of level and vertical two directions _xAnd e _y, disk is connected with rotary actuator.

2. device according to claim 1, centrepin (10) that it is characterized in that described positioning strip (2) two and affixed being integral of positioning strip (2), centrepin (10) are near steel wire with plastic plated (3), and two centrepin centre-to-centre spacing H are center of arc's distance in the steel wire elbow.

3. according to the device of claim 1 art, it is characterized in that having on described press strip (8) medial surface half slot (11) that matches with the steel wire with plastic plated external diameter.

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