KR20030095857A - Device for welding and automatic cutting of pyrometer element wire - Google Patents

Abstract

PURPOSE: An automatic welding/cutting device for a thermocouple wire is provided to improve workability and productivity by automatically welding/cutting the thermocouple wire of a temperature measuring sensor. CONSTITUTION: An automatic welding/cutting device includes a feeding reel(100) for releasing a wire towards an electrode rod, a control section(200) provided at one side of the feeding reel(100) so as to control the feeding state of the wire by using a weight(220), a feeding section(300) installed adjacent to the control section(200) in order to clamp the wire in such a manner that the wire is moved by a predetermined distance, and a welding/cutting section(400) for welding/cutting the wire fed from the feeding section(300). The feeding reel(100) is a winding member having a roll shape.

Description

Thermocouple small wire automatic welding and cutting device {DEVICE FOR WELDING AND AUTOMATIC CUTTING OF PYROMETER ELEMENT WIRE}

The present invention relates to an apparatus for processing thermocouple wires used in a probe temperature measuring element, and more particularly, to improve thermocouple wires by automatically cutting and welding two platinum wires having different poles to automatically manufacture thermocouple wires. It relates to a welding and cutting device for.

In general, consumable thermocouples are mounted on an immersion rod called holder (HOLDER), which is a molten iron phase that is discharged from the blast furnace during the steelmaking process. By measuring the temperature of molten steel in the tundish process for the purpose of maximizing the reaction efficiency and obtaining the optimal casting structure.

The thermocouple is manufactured by inserting a wire made of platinum with + and-poles bonded inside a 'U'-shaped quartz tube for smooth measurement.

Thermocouple small wires constituting such a thermocouple have been manufactured by the apparatus as shown in FIG.

That is, the platinum wires 2a and 2b constituting the thermocouple small wire 1 are fixed to each of the rolls 3a and 3b according to the poles, and then the stainless pipes 4a and 4b are inserted to adjust the protruding length.

Subsequently, the slide body 5 is advanced (in this case, the slide body is configured to drag the platinum line only when moving forward and only the slide body is retracted when moving backward). Each platinum wire 2a, 2b is placed at the center of the electrode rod 6. The thermocouple element wire 1 was manufactured by welding the platinum wires 2a and 2b having different polarities by energizing the electrode rod 6 by pressing the footswitch 7. Here, reference numeral '8' is a cutter.

However, the conventional thermocouple small wire (1) manufacturing process has the following problems.

First, there was a significant variation in welding quality due to the difference in the pressing force applied to the platinum wire to be welded according to the stepping of the foot switch.

Second, since the slide body must be advanced back and forth several times and the footswitching operation must be continued, the fatigue of the work increases and this causes a quality deterioration.

Third, after completion of welding, the thermocouple wires should be checked with the naked eye to discriminate between good and bad products, resulting in a significant decrease in productivity as well as an increase in labor.

Fourth, the inner diameter of the stainless pipe is relatively large compared to the thermocouple wire, it is difficult to match the welding position, and also because the thickness of the stainless pipe is thin, often bend during the process, the workability is reduced.

The present invention has been made in view of the above-mentioned problems of the prior art, and has been created to solve this problem. The thermocouple element wire, which is a main component of the temperature sensor, is automatically welded and cut by mechanical means to improve work efficiency and improve productivity. It is an object of the present invention to provide an improved thermocouple small wire automatic welding and cutting device capable of increasing, improving the welding quality and mass-producing a product having a uniform and uniform overlap length.

1 is an exemplary view showing a thermocouple small wire welding and cutting according to the prior art,

2 is a schematic block diagram of the device of the present invention;

3 is a cross-sectional view showing a foreign material removing member of the present invention device;

4 is a cross-sectional view showing a connection of the operation shaft of the present invention device;

5 is an exemplary view showing a stainless pipe of the present invention device;

Figure 6 is a partial perspective view of the welding and cutting of the device of the present invention.

Explanation of symbols on the main parts of the drawings

100: repetitive 110: element feed roll

200: control unit 210: chamber

220: weight 240: light sensor

250: foreign material removing member 300: supply unit

310: base frame 320: operating member

330: operation shaft 340: sliding guide

350: element wire supply member 360: operation cam

370: drive shaft 400: welding and cutting

402: support frame 410: lifting rod

420: stainless pipe 424a, 424b: pressure bar

430: cutter 450: elastic piece

460: vertical operation plate 466: lifting plate

466 ': Sliding groove P: Element wire

The above object of the present invention is a recurring reel and the wire to be drawn out; An element wire supply roll disposed on an adjacent side of the looping reel so as to draw the element wires by a driving unit at a predetermined length; An adjusting unit for selectively controlling the drive of the element wire supply roll by detecting the element length to be provided and supplied on an adjacent line of the element wire supply roll; A supply unit disposed on the same straight line adjacent to the control unit and operated forward and backward to forcibly withdraw the element wire passing through the control unit by a predetermined length; It is achieved by providing a thermocouple small wire automatic welding and cutting device which is installed adjacent to the supply portion and comprises a welding and cutting portion for welding and cutting the element wire supplied through the supply portion with an electrode and a cutter. do.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

2 is a schematic configuration diagram of an automatic welding and cutting device according to the present invention.

According to Figure 2, the automatic welding and cutting device of the present invention is provided with a pair of symmetrical pairs on both sides of the electrode (E) for welding, for example, the wire (P) wound toward the electrode (E) The repetition reel (100) for releasing, provided on one side of the repetition reel (100), the control unit 200 for controlling the supply state of the element wire (P) by the weight 220, the control unit 200 And a welding and cutting part installed at an adjacent side of the c) and welding and cutting the wire part P supplied through the supply part 300 and the supply part 300 moving by a predetermined length by clamping the element wire P and completing the thermocouple element wire. It consists of 400.

In addition, the elements constituting the apparatus of the present invention described above are preferably arranged in a substantially straight line.

The reeling reel 100 is a roll-shaped winding member, which is configured to be drawn out while being unwound by a predetermined length while the wire P is wound and is driven without a driving method.

It is preferable that the push bar 102 is placed on the looping reel 100 so that the wire P which is recommended (repeating) is not lifted.

The adjusting unit 200 is provided with an empty chamber 210 in a rectangular shape, the weight 220 is provided in the chamber 210, the light for detecting the falling position of the weight 220 The sensor 240 is configured to be installed.

The chamber 210 is installed below the recurring reel 100 adjacent to the repetitive reel 100 by compressing the element wire P in the space between the chamber 210 and the recurring reel 100. After the recommended length, the elementary wire feed roll 110 for supplying the chamber 210 is installed.

The element wire supply roll 110 is provided with a pair having a shape and size corresponding to each other, one of which is installed a drive motor (not shown) and the drive motor is electrically connected to the optical sensor 240 is installed The drive is controlled.

The optical sensor 240 is a sensor made of a light emitting element, the element (P) is struck by the weight of the weight 220, when the weight 220 is detected by the optical sensor 240 the element wire When the driving of the drive motor for driving the supply roll 110 is stopped, and the weight (220) is pulled by the supply unit 300, the weight (220) is raised again when the weight (220) is not detected Re-drive the drive motor is configured in conjunction with each other to draw the element wire (P) wound on the reel reel (100) until the weight 220 is detected again.

An auxiliary roll 230 is installed on one upper wall of the chamber 210 to allow the element wire P to be smoothly guided.

That is, the element wire (P) is drawn out from the repetition reel 100 and is adjusted by the weight 220 in the chamber 210 through the element wire supply roll 110 and then supplied through the auxiliary roll 230 300 to be supplied.

At this time, the element wire (P) is a process of removing the foreign matter on the surface of the element wire (P) by the foreign material removing member 250 installed between the chamber 210 and the supply unit 300 before flowing into the supply unit 300. Going through.

As shown in FIG. 3, the foreign material removing member 250 is supported by a case 254 by a post 252 placed in a bottom surface of an adjacent position of the chamber 210, and has a pair inside the case 254. The foreign material removal cloth 258 of the built-in, the open upper surface of the case 254 is fixed by the lock screw 256 is fixed by the foreign material removal cloth 258 is pressed to maintain a fixed state at this time P passes through these foreign matter removing cloths 258.

For this purpose, although not shown, a small wire passing hole (not shown) is formed in a portion of the outer circumferential surface of the case 254 in the radial direction thereof.

2, the base frame 310 is fixed to the installation surface, the sliding guide 340 is disposed in the longitudinal direction on the upper surface of the base frame 3100, the sliding guide 340 as shown in FIG. The operating member 320 is seated and slidably disposed thereon, and the element wire supply member 350 is fixed to the front end surface of the operating member 320.

A rear end surface of the base frame 310, that is, the adjacent side surface of the foreign material removing member 250 described above, is provided with a stopper 312 for safely stopping the operation of the operating member 320.

In addition, an operating shaft 330 is disposed on the lower surface of the operating member 320 by vertically penetrating the base frame 310, and the operating shaft 330 is illustrated in FIG. The pin is fixed to the lower end surface of the operation member 320 and the lower end is axially fixed by the guide roll 334 on the operation flow path 362 of the operation cam 360.

In particular, the middle portion of the length of the operation shaft 330 is arranged to be movable by the rotation shaft 332 supported by a separate support, the operation cam 360 is fixed to the driving shaft 370 integrally, The drive shaft 370 is connected to the drive motor 380 so as to transmit power.

The working flow path 362 is formed to have an approximately 'S' shape, and the guide roll 334 moves along the working flow path 362 with the seesaw movement of the working shaft 330 about the rotation shaft 332. The operating member 320 is reciprocated forward and backward along the sliding guide 340.

In addition, the driving shaft 370 has a lifting rod 410 and a connecting rod 421 connected to the fixed rod 414 to be described later, which are configured in the welding and cutting unit 400, have an interval therebetween and their operating positions are adjusted. To be operated by the operation roll 426 on the outer edge surface 361 of the operation cam 360 to move up and down with a slight time difference or the operation operation by the auxiliary operation roll 482 to the auxiliary cam 480 It is installed as possible.

That is, by using one drive shaft 370 it is possible to precisely control the operation of the electrode (E) and the cutter 430 to be described later, and the auxiliary mechanisms accompanying them with a slight time difference.

In FIG. 2, although the element wire supply member 350 is not shown in detail, a press plate capable of being pressurized by a cylinder is provided therein so that the press plate maintains the state of pressing the wire P when the operation member 320 is advanced. So that the element wire (P) can be drawn out, and when the operation member 320 is retracted, the pressing force of the pressing plate is released so that only the operation member 320 can be retracted in the idle state regardless of the element wire (P). Is made of.

Meanwhile, the welding and cutting part 400 is supported by the support frame 402 fixed to the tip of the base frame 310 of the supply part 300, and the element wire P passes through the support frame 402 to form an electrode rod ( E) is movably wired to the side.

At this time, in order to prevent the bending of the element wire (P) to maintain the straightness, the support pipe 410 is provided with a stainless pipe 420, the stainless pipe 420 as shown in Figure 5, in the form of a double pipe Is done.

That is, the inner tube 422 having a minimum diameter is provided in order to prevent the bending and to minimize the gap with the element wire P, and the outer tube 422 is formed on a part of the outer circumferential surface of the length of the inner tube 422 to form the outer tube 424. It is configured to reinforce strength.

As shown in FIG. 6, the welding and cutting unit 400 is connected to and fixed to the upper end of the elevating rod 410 while being orthogonal to the connecting rod 412 toward the electrode E side.

A pair of upper and lower electrode rods E are fixed by fixed rods 414 and 414 ', of which the fixed rods 414 are connected to the connection rods 421 described above to move up and down in accordance with the rotation operation of the operation cam 360. While the electrode (E) is in contact with each other to allow the energization to occur intermittently.

The upper and lower operating plates 460 are disposed on the lower surface of a part of the length of the connecting table 412 so as to be in contact therewith, and the pair of elevating plates are symmetrically disposed at both ends of the upper and lower operating plates 460. 466 is fixed.

Diagonal sliding grooves 466 'are formed on both side surfaces of the elevating plate 466, and the upper end of the cutter 430 in the form of a forceps is fitted into the sliding groove 466', and the upper end of the cutter 430. One side is connected to the elastic spring 467 connecting the gaps of the cutter 430.

In addition, the cutter 430 has a straight central portion of the length is protruded forward and the center pin 432 is fixed to the protruding portion, the bottom cut portion is opened so that the element wire (P) can pass through. .

The connection piece 462 protrudes from one surface of any one of the elevating plate 466, and the connection piece 462 penetrates the up and down direction and is fixed to the pressure bar 424a, at the lower end of the pressure bar 424a. The oppression bar 468 is extended and formed to be adjacent to orthogonal to the side thereof, and the oppression bar 468 penetrates the end of the oppression bar 468 again in the vertical direction so as to be parallel with the pressure bar 424a and have the same height. 424b is fixed.

A welding aid 440 is provided directly below the pressure bars 424a and 424b, and elastic members 450 are fixed to upper surfaces of both ends of the welding aid 440, respectively.

The elastic piece 450 has one end fixed to the upper end surface of the welding support 440 and the other end is kept elastic and open, and is disposed such that the element wire P passes through the open space. It is made of a structure.

That is, the electrode rod E is formed at the central portion of the upper surface of the welding support table 440.

The operating relationship of the present invention made of such a configuration is as follows.

The element wire P wound around the reel 100 is drawn out by a predetermined length by controlling the drive of the element wire supply roll 110 by the interaction of the weight 220 and the optical sensor 240.

The drawn element wire P is moved forward and backward by the guide roll 334 rotating along the operation cam 360 and the operation shaft 330 which is seesawed about the rotation axis 332 by the guide roll 334. By the operation member 320 is alternately advanced back and forth by the engagement with the element wire supply member 350 is supplied to the welding and cutting unit 400.

At this time, the connecting rod 412 and the vertical operation plate by the connecting rod 421 interlocked with the operation cam 360 and the elevating rod 410 interlocked with the auxiliary cam 480 addressed to the operation cam 360. 460, and the electrode E is moved up and down with a time difference.

First, while the upper electrode (E) is lowered and drawn between the upper and lower electrode (E) is in contact with the overlapping portions of the +,-pole wires arranged intersect and at the same time it is energized to proceed the welding work.

At about the same time, the upper and lower operating plate 460 is lowered by the lowering operation of the connecting table 412, the pair of pressure bars (424a, 424b) to press the elastic piece 450, thereby the elastic piece 450 is temporarily As a result, the element wire P is elastically fixed.

An elastic spring 467 that is elastically compressed while the upper end of the cutter 430 is moved along the sliding groove 466 'of the elevating plate 466 which is interlocked with the upper and lower operating plate 460 at a time difference from this state. The elastic force of the ()) is to be opened, thereby cutting the element wire (P) while the lower end of the center pin 432 centered in the direction facing each other.

The welded and cut wires are discharged and enclosed in the stack.

By repeating such a process repeatedly, it is possible to automatically cut and cut a wire having a different polarity of the platinum wire material, thereby manufacturing a thermocouple wire.

As described in detail above, the present invention provides the following effects.

First, the mass production is possible by automating the entire process, which leads to a sharp increase in productivity.

Second, since the continuous repetitive work is performed in a set state, it is possible to produce products with excellent welding quality and cutting quality.

Third, the high-quality standardized thermocouple wire is produced, so that the insertion into the quartz tube, which is a subsequent process, is smooth and the defect rate is minimized.

Fourth, the temperature measurement function is improved by removing contaminants during drawing and feeding of the wire.

Claims (6)

Repetitive reel (100) winding winding element to be drawn out (P) and; An element wire supply roll (110) disposed on an adjacent side of the looping reel (100) to draw the element wire (P) in a predetermined length by a driving means; An adjusting unit (200) for selectively controlling the operation of the element wire supply roll (110) by detecting the length of element wire (P) to be installed and supplied on an adjacent line of the element wire supply roll (110); A supply unit 300 disposed on the same straight line adjacent to the control unit 200 and operated forward and backward to forcibly pull out the element wire P passing through the control unit 200 by a predetermined length; It is installed adjacent to the supply unit 300 and provided with an electrode (E) and a cutter 430, including a welding and cutting unit 400 for welding and cutting the discharged wire (P) supplied through the supply unit 300 Automatic thermocouple wire welding and cutting device, characterized in that configured. According to claim 1, wherein the adjusting unit 200 is provided with a rectangular chamber 210 of the inside is adjacent to the line supply roll 110 in a straight line, A weight 220 is inserted into a portion of the element wire P passing through the chamber 210, At the lower end of the chamber 210, the thermocouple element wire automatic welding and cutting, characterized in that the optical sensor 240 for controlling the driving and stop of the element wire supply roll 110 by sensing the weight 220 is installed. Device. According to claim 1, Thermocouple element wire automatic welding and characterized in that the foreign material removal member 250 for cleaning the outer circumferential surface of the element wire (P) that is passed in the space between the control unit 200 and the supply unit 300 is installed. Cutting device. According to claim 1, The supply unit 300 and the base frame 310 fixed in a straight line adjacent to the control unit 200; A sliding guide 340 disposed in a longitudinal direction on an upper surface of the base frame 310; An actuating member 320 seated back and forth along the sliding guide 340; An element wire supply member 350 which is fixed to the front end surface of the operation member 320 and has a cylinder member to draw and fix the element wire P only when the element is moved forward; An operation shaft 330 fixed to the bottom surface of the operation member 320 and disposed through the base frame 310; It is configured to include a working cam 360 for seesawing the working shaft 330 by the drive shaft 370 is flexibly connected and rotated by the lower end of the operating shaft 330 and the guide roll 334 Automatic thermocouple wire welding and cutting device characterized in. 5. The thermocouple small wire automatic welding and cutting device according to claim 4, wherein an 'S' shaped working flow path 362 is formed on the outer circumferential surface of the working cam 360 to guide the rolling roll 334. According to claim 1, The welding and cutting unit 400 comprises a pair of electrodes (E) fixed on the fixed rod (414) so that the leading end of the element (P) is raised and lowered in contact with the intersection point arranged cross; A lifting rod 410 disposed above the electrode rod E and disposed to move up and down in association with the forward and backward operation of the supply unit 300; A connecting rod 412 horizontally disposed perpendicularly to an upper end of the elevating rod 410; An up and down operating plate 460 fixed to be in contact with the bottom surface of the connecting table 412 to be moved up and down with a time difference; A cutter fixed to one side of the support frame 402 to cut the wire (P) passing through the bottom of the center pin 432 along the sliding groove 466 'formed in the upper and lower operating plate 460 ( 430; A pair of pressure suppressing bars 424a and 424b fixed to one side of the upper and lower operating plates 460 and installed downward so that the lower ends thereof are positioned adjacent to the electrode bars E; And a pair of elastic pieces 450 fixed to both sides of the electrode rod E so as to temporarily fix the element wire P passing by the lowering operation of the suppressing rods 424a and 424b. Thermocouple wire welding and cutting equipment.