JP3212031U - Cap molding electric heater - Google Patents

Abstract

An electric heater for forming a cap that can uniformly and safely heat a mold is provided. A hat capable of being put into a hat by heating a dome-shaped mold F having a hollow inside and having an outer surface formed into a hat mold from the inside by heat from an electric heating section 4 provided in the center of a table 3. An electric heater for molding, wherein the electric heating part 4 has an inverted U shape and rises up to a predetermined height from the pedestal 3, has an electric heating wire inside thereof, and has heat radiation fins 4 b on the outer surface, The power supply to the heating wire is turned on / off according to the internal temperature of the mold F. Further, a heat-resistant top plate 6 is provided above the electric heating unit 4. [Selection] Figure 1

Description

  The present invention relates to an electric heater for forming a cap used when putting a cap into a mold.

  When finishing a hat, etc., with a molding method using a wooden mold, a series of operations such as applying steam to the hat fabric and fitting it into the wooden mold and molding with a wooden spatula etc. from the outside can be done quickly before the hat fabric cools down. It must be done accurately and requires skill.

  Therefore, a hat finisher is known in which a mold is used instead of a wooden mold and molding is performed while heating the mold from the inside (Patent Documents 1 and 2). The mold used for this finisher has the shape of a hat to be molded as in the case of the wooden mold, but the inside is a dome shape as a cavity. The finisher is provided with an electric heating part in the center of the mold stand, so that the hat can be put in while the mold is heated from the inside by the heat generated by the electric heating part.

Registered Utility Model No. 369173 Japanese Utility Model Publication No. 56-39422

  However, since the hat finishers of Patent Documents 1 and 2 are configured in a planar manner so that the electric heating section is along the horizontal plane of the table, the direction of heat dissipation is fixed upward. For this reason, heating unevenness occurred in the mold, and it was difficult to mold the hat uniformly. In particular, the heat radiation from the electric heating part is concentrated on the top of the mold, but since the temperature sensor for controlling the electric heating part is not provided, the top of the hat is easily damaged during molding, and there is a risk of burns and fire.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an electric heater for forming a cap that can uniformly and safely heat a mold.

  In order to achieve the above-described object, in the present invention, a dome-shaped mold having a hollow interior and an outer surface formed into a hat mold is warmed from the inside by heat from an electric heating portion provided in the center of the table, and A hat-forming electric heater capable of being put into a mold, wherein the electric heating part has an inverted U shape and rises to a predetermined height from the pedestal, has a heating wire inside thereof, and has a heat radiation fin on the outer surface. Further, means for turning on / off the power supply to the heating wire in accordance with the preset internal temperature of the mold was used.

  According to this means, since the electric heating part has an inverted U-shape and is provided with a radiation fin, the heat from the electric heating part is dissipated in all directions, and the inside of the mold can be evenly heated. In the present invention, the inverted U shape is a concept including not only a curved upper shape but also a horizontal shape. Further, as means for turning on / off the power supply to the heating wire, a thermostat is applicable in addition to a temperature sensor.

  Furthermore, it is preferable to provide a heat-resistant top plate above the electric heating section. This is because heat can be prevented from concentrating on the top of the mold by the top plate, and the raised heat can be released to the periphery of the top plate to prevent overheating of this portion. In addition, although the material of a top plate can illustrate a heat resistant metal, a ceramic and a heat resistant resin may be sufficient.

  The cradle preferably includes a mold holder that slides in the radial direction according to the outer diameter of the mold. This is because a mold of any size (outer diameter) can be fixed to the stand without wobbling.

  Furthermore, it is preferable to provide a temperature adjusting volume for the heating wire. This is because the temperature can be adjusted according to the hat fabric. Moreover, the internal temperature of a metal mold | die can be kept in a fixed range by detecting the internal temperature of a metal mold | die with a temperature sensor, and turning on and off the electric power feeding to a heating wire.

  According to the present invention, the mold can be heated safely and evenly from the inside, so that a hat with a good finish can be provided without skill.

The whole perspective view of the electric heater for forming a cap concerning one embodiment of the present invention. Same front view Same as above, top view

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an overall perspective view showing an electric heater for forming a cap according to an embodiment of the present invention, FIG. 2 is a front view thereof, and FIG. 3 is a plan view thereof. As shown in these drawings, this device is provided with a mounting base 3 of a mold F on the upper surface of a main body box 1 via a cylindrical part 2, and an inverted U-shaped electric heating part in the center of the mounting base 3. 4 and a temperature sensor 5 are erected. The mold F has a dome shape in which the inside is hollow and the outer surface is formed into a hat shape, and a conventional one can be used in the present invention.

  The main body box 1 includes a power switch 1a and a temperature adjusting volume 1b on the side surface, a power outlet 1c, and an electric circuit (not shown) for the electric heating unit 4 and the temperature sensor 5 inside. The power source may be a commercial AC power source 100v or 200v, or a DC power source such as a battery.

  The cradle 3 is provided with a circular hole 3a in the center, and a mold presser 3b that abuts the mold F from the outside is provided around it. The mold holder 3b slides in the radial direction when the side hexagon socket 3c is rotated forward and backward by a hexagon nut (not shown). Thereby, the mold F of each size can be fixed without wobbling. In this embodiment, the three mold holders 3b are provided at intervals of 120 degrees to support the mold F at three points, but the number is not limited to three.

  The electric heating part 4 has an inverted U-shape and is fixed to the cylindrical part 2, and rises up to a predetermined height via a circular hole 3 a of the table 3. The height can be arbitrarily set according to the mold F to be used. The heating portion 4 has a heating wire (not shown) built in a hollow pipe 4a bent in an inverted U shape. Further, heat radiation fins 4b are provided in a spiral shape on the outer surface of the hollow pipe 4a.

  A temperature sensor 5 is erected on the cylindrical portion 2 together with an electric heating portion 4 through a circular hole 3 a of the table 3. The temperature sensor 5 controls power supply to the heating wire by opening and closing an electric circuit according to the internal temperature of the mold F, and automatically sets the internal temperature of the mold F to a constant temperature state within a certain range. It is.

  Furthermore, in this embodiment, the top plate 6 having heat resistance is supported horizontally by the two columns 6a above the electric heating unit 4. The top plate 6 functions to prevent the heat of the electric heating section 4 from concentrating on the top of the mold F, and to prevent the top of the mold F from being overheated by releasing the heat to the periphery.

  The method of using the device having the above structure is the same as the conventional method. However, in this device, after the power is turned on, the temperature is adjusted from the electric heating unit 4 by setting the temperature according to the hat fabric to be cast by the temperature adjusting volume 1b. Heat is dissipated in the front, rear, left and right along the inverted U-shape, and is spread evenly over a wider range by the heat dissipating fins 4b. Therefore, the mold F can be warmed evenly from the inside.

  Further, the top plate 6 prevents heat from concentrating on the top of the mold F, and the temperature sensor 5 reliably prevents overheating. Therefore, the hat fabric is not altered or burned during mold placement, and there is no risk of burns or fire.

  In addition, this invention is not limited to the said embodiment. For temperature control, for example, the top plate 6 can be omitted. Further, the heat radiating fins 4b are not limited to a spiral shape, and may be independent blades.

DESCRIPTION OF SYMBOLS 1 Main body box 1a Power switch 1b Temperature adjustment volume 1c Power outlet 2 Cylindrical part 3 Stand 3a Circular hole 3b Mold holder 3c Hex socket 4 Electric heating part 4a Hollow pipe (Built-in heating wire)
4b Radiating fin 5 Temperature sensor 6 Top plate 6a Post

Claims (5)

A hat-forming electric heater that can be put into a hat by heating a dome-shaped mold with a hollow inside and a hat-shaped outer surface from the inside by heat from the electric heating section provided in the center of the table. The electric heating portion has an inverted U-shape and rises to a predetermined height from the pedestal. The electric heating portion has a heating wire inside thereof, a heat dissipating fin on the outer surface, and the preset mold. An electric heater for forming a cap which turns on and off the power supply to the heating wire in accordance with the internal temperature of the cap. The electric heater for forming a cap according to claim 1, further comprising a heat-resistant top plate above the electric heating portion. The electric heater for forming a cap according to claim 1 or 2, wherein the cradle includes a mold holder that slides in a radial direction in accordance with an outer diameter of the mold. Furthermore, the electric heater for shaping | molding the cap of Claim 1, 2, or 3 provided with the volume for temperature adjustment of a heating wire. The electric heater for forming a cap according to claim 4, wherein the temperature inside the mold is detected by a temperature sensor, and power supply to the heating wire is turned on and off.

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