JP4781405B2 - Induction heating roller device - Google Patents

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. 4 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. 4 , 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.
JP-A-53-134252

  By the way, the induction heating roller device configured as described above may be used for drawing a synthetic resin yarn. FIG. 3 shows an example of its use. 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. Moreover, when this deflection becomes large, the roller main body and the induction coil inside thereof may come into contact with each other and damage the induction coil. 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 drive shaft that is rotatably supported by a machine base and a tip portion that protrudes outward from the machine base, and a hollow roller that is connected and fixed to the tip portion of the drive shaft and protrudes outward from the machine base. In an induction heating roller device comprising a main body and an induction heating mechanism arranged in a hollow of the roller body, the front end of the drive shaft is connected and fixed to the rear end of the roller body closer to the machine base and, with an opening opposite the tip of the machine base near the side of the roller body, the tip of the induction heating mechanism, fixed to the other end of the connecting support which is fixed at one end to the machine base, the connecting support A rear end of the induction heating mechanism fixed to a tool is inserted into the hollow from the opening of the roller body, and the induction heating mechanism is disposed in the hollow of the roller body with the rear end as a free end. And

  In the present invention, the tip of the drive shaft that is rotatably supported by the machine base is connected and fixed to the side closer to the machine base of the roller body, and the other end of the induction heating mechanism is connected to the support base by fixing one end to the machine base. Since it is fixed to the end and inserted into the hollow from the front end of the roller body and the rear end is arranged as a free end in the hollow of the roller body, there is no restriction on the diameter or mounting of the induction heating mechanism or the inner diameter of the roller body A drive shaft having a large diameter can be used, and the occurrence of deflection in the roller body can be reliably avoided by this drive shaft. In addition, since the induction heating mechanism is cantilevered by a connecting support with one end fixed to the machine base, there is no need to increase the inner diameter accuracy of the drive shaft, and the production of the drive shaft is correspondingly easier and easier. Play.

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. The induction heating mechanism that is connected and fixed on the side closer to the machine base and arranged in the roller body is cantilevered by a connection support that has one end fixed to the machine base.

  An embodiment of the present invention will be described with reference to FIG. 4 denote the same or corresponding parts. 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 not supported by the drive shaft 10, but only the front end thereof is connected to the machine base 2, thereby supporting the induction heat generating mechanism 3 from the front end side of the roller body 1. Specifically, a support plate 20 that also serves as a magnetic path is fixed to the tip of the holder 6, and a connector 21 is connected thereto. By fixing the coupling tool 21 to the machine base 2 via the support tool 21A, the induction heating mechanism 3 has a free end at the rear end (right end portion in the example in the figure) in the hollow interior of the roller body 1. Thus, it is supported in a stationary state. In this configuration, the lead wire 7 passes through the support plate 20 and is drawn out.

  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. The induction heat generating mechanism 3 is fixed at the other end of the connection support 20, 21, 21A having one end fixed to the machine base 2 and inserted into the hollow from the front end of the roller main body 1 so that the rear end is fixed. Arranged as a free end. Therefore, the diameter of the roller body 1 and the induction heat generating mechanism 3 can be selected freely as the drive shaft 10 without being limited to the size of each of the inner diameters, that is, the respective inner diameters. Strength 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. Needless to say, the induction heating mechanism 3 is disposed in the hollow of the roller body 1 on the tip side of the connecting and fixing portion.

  Further, when the coupling tool 21 is installed at the end of the roller main body 1 as in the configuration shown in FIG. 1, it may become an obstacle when the yarn B is first assembled to the roller main body 1. However, in order to solve this problem, as shown in FIG. 2, the coupling tool 21 is pulled out to the roller peripheral surface side where the yarn B is not wound, and the support tool spanning the coupling tool 21 and the machine base 2 is pulled out at the drawing end. What is necessary is just to attach 21A and fix this to the machine base 2.

It is sectional drawing which shows the Example of this invention. It is a partial front view of 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 body 1A End part 2 Machine stand 3 Induction heating mechanism 10 Drive shaft 10A Flange 20 Support plate 21 Connecting tool 21A Support tool

Claims (1)

A drive shaft rotatably supported by a machine base and having a tip protruding outward from the machine base; a hollow roller body connected and fixed to the tip of the drive shaft and protruding outward from the machine base; and An induction heat generation roller device including an induction heat generation mechanism disposed in a hollow of a roller body, wherein a front end portion of the drive shaft is connected and fixed to a rear end portion of the roller body closer to the machine base , and the roller The front end of the main body on the opposite side to the machine base is opened, and the front end of the induction heating mechanism is fixed to the other end of the connection support having one end fixed to the machine base, and fixed to the connection support . The induction heat generation mechanism is configured such that a rear end of the induction heat generation mechanism is inserted into the hollow from the opening of the roller body, and the induction heat generation mechanism is disposed in the hollow of the roller main body with the rear end as a free end. Roller device.

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