JP2008262926A - Induction heating roller device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely prevent flexure of a roller body with an induction heating mechanism arranged inside, without consideration of a size of the roller body and the induction heating mechanism. <P>SOLUTION: In the induction heating roller device with an induction heating mechanism arranged inside a roller body with an outer end as a free end, a front end of a driving axis 10 is made in contact with and coupled with an inner end of a machine base 2 side of the roller body 1, and a back end side of the driving axis 10 is supported to the machine base 2 in free rotation. On the other hand, the induction heating mechanism 3 is supported by a support fixture 14 to be penetrated inside the driving axis 10, and the support fixture 14 is supported by the roller body 1 through a bearing 15 at the driving axis 10 in a still state. With this, a driving axis with a high mechanical strength radius can be selected without consideration of radii of the roller body 1 and the induction heating mechanism 3. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to an induction heat roller device.

  In the induction heating roller device, the drive shaft inserted into the roller body from one end side along the axis of the hollow roller is fixed to the other end side end of the roller body, and this drive A configuration in which the roller main body is driven to rotate by the rotation of the shaft and the induction heating mechanism disposed inside the roller main body is fixed to and supported by the machine base is already well known.

  FIG. 3 shows a conventional example of such an induction heating roller device. In the figure, reference numeral 1 denotes a roller main body, and 71 denotes a drive shaft, which is inserted into the roller main body 1, and its tip is fixedly connected to the roller main body 1 by bolts and nuts 72. The other end of the drive shaft 71 is led out from the roller body 1, and on the outside thereof, the drive shaft 71 is rotatably supported by the machine base 2 via a bearing 73. The roller body 1 is rotated by applying a rotational driving force to the drive shaft 71 led out to the outside. That is, as shown in FIG. 7, the roller body 1 is a front end portion that protrudes outward from the machine base 2, and is rotatably supported by the machine base 2, and the drive shaft 71 that protrudes outward from the machine base 2. It is connected and fixed to the tip of the.

Reference numeral 3 denotes an induction heating mechanism, which includes a cylindrical iron core 4 and an induction coil 5 wound around the outer periphery thereof. The induction heating mechanism 3 is supported by a holder 6, and the holder 6 is fixed to the machine base 2 via a connecting member 74. Reference numeral 7 denotes a lead wire of the induction coil 5. The drive shaft 71 passes through the inner center of the induction heating mechanism 3. Reference numeral 8 denotes a jacket chamber provided in the thick portion of the peripheral wall of the roller body 1, and a gas-liquid two-phase heat medium is enclosed therein.
Japanese Patent Laid-Open No. 53-134252

  By the way, the induction heating roller device configured as described above may be used for drawing a synthetic resin yarn. An example of its use is shown in FIG. Here, a pair of machine bases 2A and 2B are prepared. A plurality of induction heat roller devices A having the above-described configuration are installed in a staggered manner on each machine base. The yarn B to be drawn is sequentially attached to each device A. When the yarn B is fed out in the direction of the arrow shown in the drawing, since the rotation speed of the roller body of the device A in the feeding direction is set sequentially higher, the yarn B gathers each roller body. In the process, tension is applied to the yarn B, and the yarn B is sequentially drawn.

  When the yarn B is stretched in this way, the roller body is deflected by the tension acting on the yarn B such that the outer tip portion is directed in the tension direction. When such a deflection occurs in the roller body, the yarn drawing action is adversely affected. Further, when this deflection becomes large, the roller main body and the induction coil inside thereof may come into contact with each other and the induction coil may be damaged. Furthermore, the drive shaft 71 may be broken.

  In order to prevent the occurrence of such deflection, a drive shaft 71 having a high mechanical strength, that is, a shaft having a large diameter may be used. For this purpose, a roller body is used, and an induction heating mechanism having a large inner diameter is used. Must be used. Therefore, the use of a drive shaft having a large diameter may be limited.

  An object of the present invention is to reliably prevent the deflection of a roller main body provided with an induction heat generating mechanism therein without being limited by the size of the roller main body and the induction heat generating mechanism.

  The present invention includes a hollow roller body having a free end as a free end, a hollow drive shaft that is rotatably supported by a machine base and rotationally drives the roller body, and penetrates through the drive shaft to the inside of the roller body. An induction heating mechanism held by the introduced support; and a tip portion of the drive shaft that protrudes from the machine base is connected and fixed to a side closer to the machine base of the roller body; and the support tool is attached to the drive shaft. The induction heat generating mechanism is cantilevered through a bearing inside, and the induction heat generation mechanism is arranged in a state of being stationary with respect to the roller main body in the hollow of the roller main body on the tip side of the connecting and fixing portion of the drive shaft. A roller device is configured.

  In the present invention, the tip of the drive shaft that is rotatably supported by the machine base is connected and fixed to the roller body closer to the machine base, and the induction heat generating mechanism is cantilevered in the drive shaft to be more distal than the connection fixing portion. Because it is arranged in the hollow of the roller body on the side, it can be used as a drive shaft with a large diameter without being limited by the diameter or mounting of the induction heating mechanism or the inner diameter of the roller body, and the deflection generated in the roller body Occurrence of this can be reliably avoided by this drive shaft. In addition, since the induction heat generating mechanism is cantilevered within the drive shaft having a large diameter, the position of the induction heat generation mechanism disposed inside the roller body is stabilized, and the arrangement and removal of the induction heat generation mechanism inside the roller main body are also possible. There is an effect that can be easily performed.

The tip of the drive shaft, which is rotatably supported by the machine base, is installed to prevent the deflection of the roller body with the induction heating mechanism inside, without being restricted by the size of the roller body and the induction heating mechanism. This is realized by connecting and fixing on the side closer to the machine base and cantilevering the induction heating mechanism arranged in the roller body via the bearing on the drive shaft.

  An embodiment of the present invention will be described with reference to FIG. In addition, the part which attached | subjected the same code | symbol as FIG. 3 shows the part which is the same or respond | corresponds. In accordance with the present invention, a flange 10A provided at the tip of the drive shaft 10 is assigned to the end 1A of the roller body 1 closer to the machine base 2, and the two are fixed and connected together using bolts or the like. . The outer periphery on the rear end side of the drive shaft 10 is rotatably attached to the machine base 2 via a bearing 11. Here, even when the deflection is generated based on the tension caused by the yarn applied to the roller body, the drive shaft 10 having a diameter having a mechanical strength that can prevent the deflection is used.

  The induction heat generating mechanism 3 is supported in a stationary state with respect to the roller body 1 inside the hollow body of the roller body 1 on the tip side of the connecting and fixing portion without the drive shaft 10. That is, as shown in FIG. 1, a pipe-like support 14 is connected to the rear end of the holder 6 that holds the induction heating mechanism 3. In the example, it is supported via bearings 15 at two locations). That is, the induction heat generating mechanism 3 is cantilevered only at the rear end thereof, that is, Therefore, the front end of the induction heating mechanism 3 is a free end. Reference numeral 12 denotes a magnetic plate that closes the outer end of the roller body 1. Further, the lead wire 7 led out from the induction coil 5 is led out through the support 14.

  The support 14 is extended from the rear end of the drive shaft 10 to the outside. And the rotation prevention tool 5 is provided in the extended front-end | tip so that it may not rotate with the rotation of the drive shaft 10. FIG. Reference numeral 16 denotes a rotary transformer, which includes a rotary coil 17 that rotates integrally with the drive shaft 10 and a fixed coil 18 that is integrated with the support 14. This is used to transmit an electrical signal from a temperature detector M for detecting the temperature of the roller body to the stationary side, and the temperature detector M and the rotating side coil 17 are connected to a lead wire. L is connected. Reference numeral 19 denotes a lead terminal from the fixed side coil 18.

  As can be understood from the configuration shown in the drawing, the drive shaft 10 is in contact with and connected to the end portion 1A of the roller body 1 on the side close to the machine base 2 at the flange 10A provided at the front end portion thereof. The roller body 1 can be driven to rotate by the drive shaft 10 without having to pass the drive shaft through the roller body. Further, since the induction heat generating mechanism 3 is cantilevered in the drive shaft 14, the size of the roller body 1 and the induction heat generation mechanism 3, that is, the inner diameters thereof are not limited, and the drive shaft 10 can be freely used. The diameter can be selected, and therefore the mechanical strength capable of suppressing the deflection of the roller body 1 can be freely imparted to the drive shaft 10. In the configuration shown in the figure, the tip of the drive shaft 10 is fitted into the hollow of the roller body 1 and the flange 10A provided at the tip is applied and fixed to the end surface of the roller body 1, but such a flange or You may make it connect and fix the front-end | tip part of a drive shaft in the hollow at the side of the machine base 2 of the roller main body 1 which does not overlap with the induction heating mechanism 3. FIG.

It is sectional drawing which shows the Example of this invention. It is a perspective view which shows the usage example of this invention. It is sectional drawing which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Roller main body 1A End part 2 Machine stand 3 Induction heating mechanism 10 Drive shaft 10A Flange

Claims (1)

A hollow roller body having a free end as a free end, a hollow drive shaft that is rotatably supported by a machine base and rotationally drives the roller body, and a support that passes through the drive shaft and is introduced into the roller body An induction heating mechanism held by a tool, and a front end portion of the drive shaft protruding from the machine base is connected and fixed to the roller body closer to the machine base, and the support tool is supported inside the drive shaft. The induction heating mechanism is supported in a cantilever manner, and is arranged in a stationary state with respect to the roller body in the hollow of the roller body on the tip side of the connecting and fixing portion of the drive shaft. Induction heating roller device.

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