KR101957882B1 - Bulging apparatus for manufacturing inner pot - Google Patents

Abstract

The present invention discloses a bulging processing apparatus for an inner pot making it possible to improve the durability of a processing apparatus in the case of disclosing a bulging of an inner pot, and to improve the durability and accuracy of the apparatus. The present invention relates to a semiconductor device, A rotation cover mounted on the base and rotated by a driving motor; A bulging molding part installed at a lower part of the base and raised and lowered up and down by an elevating and lowering operation part and forming a bulging area of a semi-finished inner pot while being rotated together with the rotary cover part; And a horizontal movement operation unit for moving the bulge forming unit from the base to the left and right.

Description

[0001] The present invention relates to a bulging apparatus for manufacturing inner pot,

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a bulging machine, and more particularly, to a bulging machine for manufacturing an inner pot for processing an inner pot mounted inside an electric pressure cooker.

Generally, the rice cooker is equipped with an inner pot, and the object is cooked by heating the object. Convection phenomenon is generated when the object to be cooked is heated, and convection is promoted if the outer part of the inner pot is convexly formed.

This inner pot forms the outer surface of the inner pot convexly through bulging processing. Here, the bulging processing means a kind of processing for forming a part of the workpiece convexly, and the used working machine is called a bulging machine.

Referring to FIG. 1, a conventional bulging processing apparatus for inner pot making will be described as follows.

In the conventional bulging machine, a middle frame 200 is disposed on the upper side of the base frame 100, and a split mold unit 300 is provided on the upper side of the middle frame 200. The flexible supporter 400 is disposed inside the middle frame 200 and the divided mold unit 200. A top mold unit 500 is disposed above the middle frame 200 and the split mold unit 300.

A conventional bulging processing apparatus having such a configuration sucks an inner pot in a semi-processed state through an air vent unit 550 provided in an upper portion of a top mold unit 500, The flexible supporter 400 is pressed so that the outer peripheral surface of the inner pot is bulged in a convex shape. That is, when the top mold unit 500 is lowered toward the base frame 100, the flexible supporter 400 expands to form the outer peripheral surface of the semi-finished inner pot convexly (bulging processing). At this time, the split mold unit 300 is supported by the ring frame 520 and can be prevented from being opened by the pressure.

Such a conventional inner pot bulging processing apparatus can perform bulging processing in a semi-processed inner pot product, and even if the outer size is somewhat larger, such as an inner pot, it can be rapidly subjected to bulging processing, thereby increasing production efficiency.

However, in the conventional inner pot welding apparatus, there is a problem that the flexible supporter 400 made of an elastic material has to be periodically replaced due to wear and damage during long-term use. Further, the conventional flexible supporter 400 has a problem that the elastic force There is a physical limit, and when the product is continuously produced in this state, a precise machining dimension can not be secured, resulting in a problem leading to a product failure.

Prior Art 1: Practical New Korean Registration No. 0476642 (Announcement date March 17, 2015)

The present invention has been made to solve the above problems, and it is an object of the present invention to improve the durability of a machining apparatus in the case of disclosing a bulging of an inner pot, And an object of the present invention is to provide a device for manufacturing a bulb for an inner pot.

According to an aspect of the present invention, there is provided a semiconductor device comprising: a base; A rotation cover mounted on the base and rotated by a driving motor; A bulging molding part installed at a lower part of the base and raised and lowered up and down by an elevating and lowering operation part and forming a bulging area of a semi-finished inner pot while being rotated together with the rotary cover part; And a horizontal movement operating part for moving the bulge forming part from the base to the left and right.

The bulging molding part may include a spindle rotatably mounted on the horizontal movement operation part and a processing roller part connected to a front end of the spindle and rotated in a state of being closely attached to the inside of the semi-finished inner pot.

And a jig member for fixing a part of the semi-finished inner pot may be installed on the horizontal moving plate.

The semi-circular first and second jig portions are pivotally connected to each other, and the outer peripheral surfaces of the first and second jig portions are formed in an inclined surface and are in close contact with the inner surface of the rotary cover portion .

The inner surface of the rotation cover may be formed with an inner inclined surface so as to be aligned with the inclined surface of the jig member.

According to the present invention, it is possible to prevent the machining tolerance from being generated due to the lowering of the elastic force generated during the processing of the bulge through the conventional flexible supporter.

Further, the durability and the processing accuracy of the apparatus can be improved even for long-term use.

Fig. 1 is an operational state diagram of a conventional apparatus for manufacturing an inner pot,
FIG. 2 is a cross-sectional view showing a state where a semi-finished inner pot is mounted on a bulging processing apparatus for manufacturing an inner pot according to an embodiment of the present invention;
3 is an operating state diagram showing an operating state of the apparatus for manufacturing an inner pot according to an embodiment of the present invention,
4 is a plan view showing a state in which a jig member of a bulb processing apparatus for manufacturing an inner pot according to an embodiment of the present invention is installed,
5 is an enlarged view of a bulging portion of a bulging processing apparatus for manufacturing an inner pot according to an embodiment of the present invention,
6 is a plan view of a jig member of a bulging processing apparatus for inner-pot making according to an embodiment of the present invention, and Fig.
7 is a side sectional view showing a state in which a jig member of a bulging processing apparatus for an inner pot according to an embodiment of the present invention fixes a semi-finished inner pot.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concept of the term appropriately in order to describe its own invention in the best way. The present invention should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention. Further, unless otherwise defined in the technical terms and the scientific terms used, those having ordinary skill in the art to which the present invention belongs have the same meaning as commonly understood. In the following description and the accompanying drawings, descriptions of known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted. The accompanying drawings are provided by way of example so that those skilled in the art can fully understand the spirit of the present invention. Therefore, the present invention is not limited to the following drawings, but may be embodied in other forms. In addition, like reference numerals designate like elements throughout the specification. It is to be noted that the same elements among the drawings are denoted by the same reference numerals whenever possible.

Referring to FIGS. 2 and 3, the apparatus for processing an internal pot according to an embodiment of the present invention has the following configuration.

First, the upper base 10 and the lower base 20 are vertically arranged to form a frame of the apparatus. At this time, a plurality of shafts 11 and 12 are disposed between the upper and lower bases 10 and 20, respectively. A base frame 25 for supporting the entire device is provided at a lower portion of the lower base 20.

In the above configuration, the upper base 10 is equipped with the driving motor M and the rotation unit 30. At this time, the rotation unit 30 is applied as a means for receiving the driving force of the driving motor M and transmitting the rotation. On the other hand, a rotation cover portion 35 having pockets formed therein is mounted on the lower end of the rotation portion 30. The driving force of the driving motor M is configured to rotate the rotary cover portion 35 through the rotary portion 30. [

In the above configuration, a horizontal moving plate 60 is disposed on the upper portion of the lower base 20, and a bulging forming portion 50 is disposed on the upper portion of the horizontal moving plate 60. At this time, a horizontally moving operation unit 80 is installed on a side surface of the horizontally moving plate 60. A hydraulic cylinder, a pneumatic cylinder, or the like can be applied to the horizontal movement operation portion 80. [ The horizontally moving plate 60 having such a configuration can be moved in the horizontal direction by the horizontally moving operation portion 80. [ Therefore, the bulging forming portion 50 disposed on the horizontal moving plate 60 can be moved in the horizontal direction (left-right direction) by the horizontal moving operation portion 80. [

On the other hand, a lift mechanism 70 is disposed at the center of the base frame 25, and a lower base 20 is connected to the tip of the lift mechanism 70. Accordingly, when the lifting and lowering operation part 70 pushes up the lower base 20, the lower base 20 is lifted along the shafts 11 and 12 and the lower base 20 is raised as shown in FIG. 3 The rotation cover portion 35 can be brought into close contact with the bulging forming portion 50. [ In this state, the rotation of the rotation cover portion 35 leads to the rotation of the lower bulging forming portion 50. The rotational force of the rotation cover portion 35 is synchronized with the rotation of the bulge forming portion 50. [

 5, the bulging forming part 50 includes a spindle 51 mounted on the upper portion of the horizontal moving plate 60, a processing roller 52 provided on the tip of the spindle 51, (52). Thus, the processing roller portion 52 is allowed to freely rotate at the upper portion of the horizontal moving plate 60.

A bearing 53 is mounted on the horizontal moving plate 60 and the jig member 40 is seated on the bearing 53. [

4, 6 and 7, the jig member 40 is composed of a semicircular first jig 41 and a second jig 42, and the first jig 41 and the second jig The jig (42) is pivotally connected with respect to the hinge point (45). Further, separate fixing bolts 41a and 42a are provided on the respective jigs 41 and 42 for fixing to the semi-finished inner pot I, respectively. 7, the jig member 40 is a component for fixing the semi-finished inner pot I and includes a first jig portion 41 and a second jig portion 41 along the outer periphery on the inlet side of the semi-finished inner pot I, So that the fixing portion 42 is fitted.

On the other hand, as shown in Fig. 5, the bulge forming unit 50 is synchronized with rotation by the rotation cover portion 35 rotating by the drive motor M being in close contact with the jig member 40. [ That is, the pockets P are formed inside the rotary cover portion 35, and the semi-finished inner pot I is placed in this space. At this time, the bottom surface of the semi-finished inner pot (I) can be closely attached to the inside of the pocket (P).

3, the jig member 40 in a state in which the rotation of the rotation cover portion 35 is in close contact is rotated in a state where the bulge forming portion 52 is in close contact with the rotation cover portion 35, The inner pot I fixed to the inner pot 40 is rotated at a high speed. The semi-finished inner pot I fixed to the jig member 40 by the bearing 53 provided on the horizontal moving plate 60 can be rotated along the rotary cover portion 35. [

An inclined surface 40a is formed on the outer peripheral edge of the jig member 40 and an inner inclined surface 35a engaged with the inclined surface 40a is formed on the inner peripheral surface of the rotary cover portion 35, The slope 40a and the inner circumferential slope 35a are engaged with each other when the rotary cover portion 35 is in close contact with each other, thereby reducing the loss of rotation synchronization.

Hereinafter, the use state of the apparatus for manufacturing an internal pot according to one embodiment of the present invention will be described.

First, the semi-finished inner pot I is fixed on the bulge forming section 50 as shown in FIG. Specifically, the jig member 40 is opened to fix the semi-finished inner pot I, and then the fixing bolt I is tightened to maintain the fixed state.

In this state, the lifting and lowering operation portion 70 is operated to raise the lower base 20. The horizontal moving plate 60 is raised until the jig member 40 is brought into close contact with the lower surface of the rotary cover portion 35 as shown in FIG. 3. When the rotary cover portion 35 is rotated in this state, 40 are rotated together by the bearing 53 disposed on the horizontally moving plate 60. The semi-finished inner pot I fixed to the jig member 40 is rotated. That is, the semi-finished inner pot I is rotationally synchronized through the rotary cover portion 35 rotated by the drive motor M.

5, when the horizontal moving plate 60 is moved to the left as viewed in FIG. 5, the processing roller unit 52 connected to the spindle 51 The inner surface of the semi-finished inner pot I is closely contacted and rotated together. That is, when the processing roller portion 52 is rotated in close contact with the inner surface of the semi-finished inner pot I, the inner surface of the semi-finished inner pot I is convexly formed along the outer peripheral curved surface of the processing roller portion 52 Thereby forming a bulging process.

The inner peripheral surface of the semi-finished inner pot I is rotated by the rotation of the drive motor M and the processing roller portion 52 which freely rotates through the spindle 51 on its inner surface By performing the friction rotation by moving horizontally so as to be in close contact, the bulging processing for the semi-finished inner pot I can be performed.

 Next, when the bulging process is completed, the fixing process of the jig member 40 is released, the semi-finished inner pot I is taken out, and the manufacturing process can be performed while replacing the next work.

 As described above, according to the present invention, there is provided a device for processing a bulge for manufacturing an inner pot, wherein the machining roller portion 52, which is freely rotatably mounted on the horizontal moving plate 60 by the spindle 51, is rotated by the rotary cover portion 35 (I) and mechanically perform the bulging process. In this case, since the inner roller, which is an object to be processed, is usually made of a metal material containing aluminum, if the processing roller portion 52 is made of a high-hardness steel, bulging processing (friction rotation The abrasion rate of the processing roller portion 52 is not high. Accordingly, the durability of the apparatus can be improved compared with the conventional bulging processing using the flexible supporter, and the occurrence of machining tolerance caused by the reduction of the conventional elastic force can be also solved.

Although the upper base 10 is lowered in the above embodiment, the rotation cover 35 and the bulb forming unit 50 may be synchronized in rotation.

While the present invention has been particularly shown and described with reference to the particular embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

10: Upper base
11, 12: Shaft
20: Lower base
30:
40: jig member
50: bulging molding part
51: spindle
52:
53: Bearings
60: Horizontal moving plate
70:
80: horizontal movement operation part

Claims (5)

Base;
A rotation cover mounted on the base and rotated by a driving motor;
A bulging molding part installed at a lower part of the base and raised and lowered up and down by an elevating and lowering operation part and forming a bulging area of a semi-finished inner pot while being rotated together with the rotary cover part; And
And a horizontal movement operating part for moving the bulge forming part from the base to the left and right,
Wherein the bulging forming portion includes a horizontal moving plate connected to the horizontal moving operation portion and moving in a horizontal direction on the base, a spindle rotatably mounted on the horizontal moving plate, and a spindle connected to the tip of the spindle, And a processing roller portion which is rotated in a state in which it is tightly adhered to the inside. delete The method according to claim 1,
And a jig member for fixing a part of the semi-finished inner pot is provided on an upper portion of the horizontally moving plate. The method of claim 3,
The jig member
The first and second jig portions of the semicircular shape are pivotally connected to each other,
Wherein an inclined surface is formed on an outer circumferential surface of the first and second jig portions so as to be closely attached to the inner surface of the rotary cover portion. 5. The method of claim 4,
Wherein an inner peripheral surface of the rotary cover portion is formed with an inner inclined surface so as to be aligned with an inclined surface of the jig member.

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