KR101889300B1 - Thermoplastic Sheet Heating Device For Forming Mouthpiece And Mouthpiece Forming Apparatus Having The Same - Google Patents

Abstract

The present invention discloses a heater for a thermoplastic sheet for molding a mouthpiece and a mouthpiece forming apparatus having the heater. The heater of the thermoplastic sheet for molding the dental mouthpiece includes: a sheet supporter for supporting the thermoplastic sheet; A first heater for applying heat to an upper side of the thermoplastic sheet at an upper side of the sheet supporter; And a second heater for applying heat to the bottom surface of the thermoplastic sheet at a lower side of the sheet supporter.
INDUSTRIAL APPLICABILITY The heater of the thermoplastic sheet for dental mouthpiece molding according to the present invention and the dental mouthpiece molding apparatus having the same can minimize the temperature fluctuation in the thickness direction of the thermoplastic sheet as the object to be heated so that the molding stability of the thermoplastic sheet and the shape stability after molding are greatly improved .

Description

TECHNICAL FIELD [0001] The present invention relates to a heater for a thermoplastic sheet for molding a mouthpiece, and a mouthpiece forming apparatus having the same. [0002]

The present invention relates to a heater for a thermoplastic sheet for mouthpiece molding for heating a thermoplastic sheet used for molding a mouthpiece for orthodontic and / or tooth protection purposes to soften the thermoplastic sheet in a formable state and a mouthpiece molding apparatus More specifically, it relates to a heater for a mouthpiece forming thermoplastic sheet which can increase or decrease the heating non-uniformity of the sheet when the thickness of the thermoplastic sheet for mouthpiece formation increases or when the thermoplastic sheet has a multi-layer structure, and a mouthpiece To a molding apparatus.

In general, a mouthpiece is an intraoral structure that is detachably attached to a tooth and performs functions such as tooth protection, jaw joint protection, correction function, for example, movement of a tooth or maintenance of a tooth position.

The mouthpiece is also referred to as a mouth guard, and specifically includes an orthodontic mouthpiece including a splint for orthodontic treatment and a retainer, and a mouthpiece for sports (including a leport) .

More specifically, the mouthpiece, for example, sports mouthpiece is attached to a tooth and protects teeth and temporomandibular joints from a shock applied to the face by a fist or a ball during exercise such as fighting or ball game, , Silicon or latex.

For reference, a human tooth forms an arch-type dental arch, which is divided into normal occlusion and malocclusion according to the positional relationship of the dentition when the lower and upper teeth are engaged.

Conventional dental mouthpieces are provided for sports or orthodontic treatment, and are divided into ready-made products and personalized dental hygiene products. Since ready-made dental hygiene products are poor in functionality, custom dental hygienic dental hygiene products customized to individual oral structures Is attached to the teeth to prevent damages to teeth, gums, and lips from impacts applied from the outside of the face, protects the jaw joints and jaws (jawbone), and further prevents brain damage. The orthodontic mouthpiece is attached to the teeth to improve the dentition or to maintain the dental state in the final stage of the orthodontic treatment.

On the other hand, when a person is in a state of tension or has to exert a great deal of force, the muscles near the mouth are tightened and tightened, and the strong occlusal force generated at this time is absorbed and dispersed by the jaw joint and the teeth, Large or repetitive occurrences have adverse effects on the teeth and jaw joints.

Examples of situations in which teeth are damaged by strong occlusal force include maternity and exercise or labor that should exert a great deal of power. During maternity, And the occlusal force generated at this time may damage the tooth of the mother and may adversely affect the jaw joint.

The conventional mouthpiece is effective for protecting the teeth from external shocks applied to the face. However, it is difficult to prevent the teeth from being damaged due to the irritation of the dorsal and upper teeth It is not enough to prevent the teeth from being damaged due to the occlusion, and the mouthpiece is torn due to the strong occlusal force, the occlusal force due to the imperfection is not fully buffered, and the tooth is easily transferred to the teeth. There are a number of problems that cause weakness and alteration of the dorsal and upper teeth, resulting in abnormalities in occlusion.

A thermoplastic sheet is used for manufacturing a dental mouthpiece excellent in durability and dental fitness. After heating the thermoplastic sheet in a formable state, a tooth model, that is, a tooth model having a shape mimic tooth arrangement, is coated with a thermoplastic sheet, The mouthpiece can be manufactured by molding the structure transferred with the shape and finishing the process of hardening and repairing the appearance of the structure.

However, in the conventional method of manufacturing a mouthpiece using the above-described thermoplastic sheet, it is difficult for the entire region of the thermoplastic sheet to be uniformly heated, and in particular, the temperature deviation in the thickness direction may be a limiting factor for stable molding of the thermoplastic sheet and for maintaining the shape of the mouthpiece As a result, there is a risk that a large amount of deformation may occur during use of the mouthpiece.

Further, even when a dental mouthpiece having a multi-layer structure is formed by using a multi-layered thermoplastic sheet having different materials laminated, the temperature deviation in the thickness direction, that is, the uniformity of heating contents, There is a possibility that a phenomenon may occur. As a result, there is a limit to realize excellent structural stability and durability.

Korean Patent No. 10-1427016, August 5, 2014 Announcement, Mouthpiece-forming substrate for dental treatment and preforming method thereof

The present invention has been proposed in order to solve the above-described problems of the prior art, and it is an object of the present invention to provide a heater for a thermoplastic sheet for dental mouthpiece which can realize uniform heating of a thermoplastic sheet by minimizing a temperature deviation in the thickness direction, And the like.

The present invention has been proposed in order to solve the above-mentioned problems, and provides a heater for a thermoplastic sheet for molding a dental mouthpiece and a dental mouthpiece molding apparatus.

One embodiment of the present invention is a heater for a thermoplastic sheet for molding a dental mouthpiece, comprising: a sheet supporter for supporting a thermoplastic sheet; A first heater for applying heat to an upper side of the thermoplastic sheet at an upper side of the sheet supporter; And a second heater for applying heat to the bottom surface of the thermoplastic sheet at a lower side of the sheet supporter. The present invention also provides a heater for a thermoplastic sheet of a mouthpiece forming apparatus.

The seat supporter comprising: A sheet holder for supporting an edge of the thermoplastic sheet and exposing an upper surface of the thermoplastic sheet toward the first heater and exposing a bottom surface of the thermoplastic sheet toward the second heater; And the like. The sheet holder comprising: And the edges of the thermoplastic sheet are clamped to support the thermoplastic sheet.

The seat supporter may be movable so as to be positioned between the first heater and the second heater. For example, the seat supporter can be elevated in the vertical direction. The second heater may have a shape penetrating in the vertical direction so that the seat supporter can pass in the vertical direction.

The seat supporter may be horizontally movable in a layer between the first heater and the second heater. For example, the seat supporter can horizontally move in the layer between the first heater and the second heater by rotational movement.

At least one of the first heater and the second heater may be movable. Specifically, at least one of the first heater and the second heater may move in at least one of a rotational movement and a linear movement.

The second heater may have a donut shape having a vertical through hole and the through hole of the second heater may be formed such that the sheet supporter can pass through in the vertical direction.

Specifically, the second heater includes: A donut-shaped heater frame having the through-hole formed therein, and a hot discharge hole formed in the heater frame to discharge heat.

The hot discharge hole may be formed on an inner slope of the heater frame facing the bottom surface of the thermoplastic sheet.

The seat supporter comprising: A sheet holder for supporting an edge of the thermoplastic sheet and exposing an upper surface of the thermoplastic sheet toward the first heater and exposing a bottom surface of the thermoplastic sheet toward the second heater; Wherein the through holes of the heater frame are formed in such a size that the seat supporter can pass through in the vertical direction; At one side of the heater frame, a supporter elevator can be formed so that the holder supporter can pass in the vertical direction.

According to another aspect of the present invention, there is provided a mouthpiece forming apparatus for manufacturing a dental mouthpiece for dental care or orthodontic treatment by closely adhering thermally softened thermoplastic sheet to an oral model simulating a tooth arrangement, comprising: platform; A sheet supporter provided at one side of the forming platform and supporting the thermoplastic sheet for molding of the mouthpiece and being vertically movable up and down; A first heater for applying heat to an upper side of the thermoplastic sheet at an upper side of the sheet supporter; And a second heater for applying heat to the bottom surface of the thermoplastic sheet at a lower side of the sheet supporter.

The forming platform comprising: And a sheet adsorption port for adsorbing the thermoplastic sheet to adhere the thermoplastic sheet to the upper surface of the oral cavity model.

The heater of the thermoplastic sheet for mouthpiece molding according to the present invention and the mouthpiece forming apparatus having the heater have the following advantages.

INDUSTRIAL APPLICABILITY The heater of the thermoplastic sheet for dental mouthpiece molding according to the present invention and the dental mouthpiece molding apparatus having the same can minimize the temperature fluctuation in the thickness direction of the thermoplastic sheet as the object to be heated so that the molding stability of the thermoplastic sheet and the shape stability after molding are greatly improved .

The heater of the thermoplastic sheet for mouthpiece molding according to the present invention and the mouthpiece forming apparatus having the same can minimize heating unevenness due to difference in thickness of the thermoplastic sheet and material difference, , Loading of the thermoplastic sheet, heating of the thermoplastic sheet, and handling of the heater and the molding apparatus for forming the mouthpiece are easy.

More specifically, the heater for a thermoplastic sheet for mouthpiece molding according to the present invention and the mouthpiece forming apparatus having the same can prevent the thermoplastic sheet from being damaged due to excessive heat on one side surface of the thermoplastic sheet compared to the other surface, Since the thermoplastic sheet can be heated evenly in a shorter time, the time required for manufacturing the mouthpiece can be shortened and the workability can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS The features and advantages of the present invention will become better understood with reference to the following description taken in conjunction with the following detailed description of embodiments of the invention,
1 is a schematic side view of a heater for a thermoplastic sheet for dental mouthpiece molding according to an embodiment of the present invention and a dental mouthpiece molding apparatus having the same.
Fig. 2 is a front view of the mouthpiece forming apparatus shown in Fig. 1; Fig.
3 is a perspective view showing an embodiment of a second heater (lower heater) applicable to a heater for a thermoplastic sheet for forming a mouthpiece according to the present invention;
FIG. 4 is a sectional view taken along line AA of FIG. 3;
5 is a cross-sectional view schematically illustrating a molding process of a thermoplastic sheet;
6 is an exploded perspective view showing an embodiment of a sheet supporter;
7 is a sectional view showing another embodiment of a second heater (lower heater) applicable to a heater for a thermoplastic sheet for forming a mouthpiece according to the present invention;
8 is a sectional view showing still another embodiment of a second heater (lower heater) applicable to a heater for a thermoplastic sheet for dental mouthpiece formation according to the present invention;
FIG. 9 is a schematic side view of a heater for a thermoplastic sheet for dental mouthpiece molding according to another embodiment of the present invention and a dental mouthpiece molding apparatus having the same.
10 is a plan view of the mouthpiece forming apparatus shown in FIG. 9;
11 is a schematic side view showing a heater for a thermoplastic sheet for dental mouthpiece molding and a dental mouthpiece molding apparatus having the same according to still another embodiment of the present invention;
12 is a plan view of the mouthpiece forming apparatus shown in Fig. 11; Fig. And
13 is a perspective view schematically showing a second heater (lower heater) applicable to the dental mouthpiece molding apparatus shown in Fig.

Best Mode for Carrying Out the Invention Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In describing the present embodiment, the same reference numerals and symbols are used for the same components, and additional description and overlapping description thereof will be omitted below.

1 to 6, an embodiment of a heater for a thermoplastic sheet for a mouthpiece molding according to the present invention and a mouthpiece molding apparatus having the heater will be described.

1 is a schematic side view of a heater for a thermoplastic sheet for dental mouthpiece molding according to an embodiment of the present invention and a dental mouthpiece molding apparatus having the same, and Fig. 2 is a cross- Fig. 3 is a perspective view showing an embodiment of a second heater (lower heater) applicable to a heater for a thermoplastic sheet for dental mouthpiece molding according to the present invention.

FIG. 4 is a cross-sectional view taken along the line A-A of FIG. 3, FIG. 5 is a cross-sectional view schematically illustrating a process of forming a thermoplastic sheet, and FIG. 6 is an exploded perspective view showing an embodiment of a sheet supporter.

A heater for molding a dental mouthpiece according to an embodiment of the present invention (hereinafter referred to as a "sheet heater") comprises a sheet supporter 110, a first heater 120, And a second heater (130). The dental mouthpiece forming apparatus according to an embodiment of the present invention includes the sheet heater and a forming platform 210.

The mouthpiece is not limited to a mouthpiece for tooth protection such as for sports or leisure, but also includes a mouthpiece for medical treatment, such as orthodontic treatment, And is detachably attached to the teeth and installed inside the oral cavity.

The first and second heaters 120 and 130 may be disposed on both sides of the thermoplastic sheet so that heat can be applied to both sides of the thermoplastic sheet 1, And supports the thermoplastic sheet 1 therebetween.

The thermoplastic sheet (1), that is, a sheet which can be plastically deformed by heat and which is solidified as a deformed shape upon cooling, has been commercially available in the form of a circle or a square.

For example, a variety of hard resins and soft resins sold in various companies such as ERKODENT (Germany) and FORESTADENT (Germany) as a dental resin for dental mouthpiece molding are known

Specific examples of the hard resin include PETG (Polyethylene Terephthalate Glycol), and specific examples of the soft resin include EVA (Ethylene Vinyl Acetate), thermoplastic polyurethane (TPU) and the like, but the material of the thermoplastic sheet However, the present invention is not limited to this, and a multi-layer thermoplastic sheet (for example, TRACK B, manufactured by FORESTADENT, Germany) having different materials laminated is also available as a thermoplastic sheet for mouthpiece molding.

The thickness of the thermoplastic sheet 1 may be varied depending on the use of the mouthpiece, and a multi-layer structure other than a single layer may be used. The present invention relates to a sheet heater for heating and thermally softening the thermoplastic sheet 1 as a whole more uniformly and in a formable state, and a mouthpiece forming apparatus having the sheet heater, wherein the first heater 120 is disposed on the sheet supporter 110, And the second heater 130 applies heat to the bottom surface of the thermoplastic sheet 1 from the lower side of the sheet supporter 110. The second heater 130 applies heat to the upper surface of the thermoplastic sheet 1,

In this embodiment, the heating of the thermoplastic sheet 1 is performed in a state in which the first heater 120, the sheet supporter 110, and the second heater 130 are arranged in a line.

In the embodiment of the present invention, the sheet heater is exemplified by a state in which one surface of the thermoplastic sheet faces upward and the other surface faces downward, that is, a state in which the thermoplastic sheet 1 is horizontally installed. However, The heater disposed on one side of the thermoplastic sheet becomes the first heater 120 and the heater disposed on the other side becomes the second heater 120 regardless of the arrangement direction of the heater 120, the seat supporter 110 and the second heater 130, It can be a heater.

In other words, the heating of the thermoplastic sheet 1 proceeds in a state where the thermoplastic sheet 1 is positioned between the first heater 120 and the second heater 130 by the sheet supporter 110.

The first heater 120 and the second heater 130 may be immovably fixed in place and at least one of the first heater 120 and the second heater 130 may be a non- It may be movable. Specifically, at least one heater of the first heater 120 and the second heater 130 may move in at least one of a rotational movement and a linear movement.

In this embodiment, both the first heater 120 and the second heater 130 are movable. More specifically, in the heater support 140 supporting the first heater 120, The first heater 120 is simultaneously moved together with the second heater 130 so as to be disposed at a position where the heating of the thermoplastic sheet 1 proceeds (sheet heating position), and the thermoplastic sheet 1 It is possible to escape from the sheet heating position to another position after the heating of the sheet 1 is completed.

Of course, the first heater 120 and the second heater 130 may be separately (independently) arranged at the same time, or one of the heaters and the other heater may sequentially move to the sheet heating position.

The first heater 120 and the second heater 130 are mounted on the heater support 140 and linearly reciprocated together by the movement of the heater support 140 It is possible. In this embodiment, the heater support 140 is provided on the support body 150.

More specifically, the heater support 140 is movably provided on the support body 150, and the actuator 160 for moving the heater support 140 is provided on the support body 150 .

The actuator support 160 may be a hydraulic or pneumatic cylinder, a linear motor, or a variety of linear motion drive devices such as a rack-and-pinion And various types of apparatuses are known as actuators for generating a linear reciprocating motion, so that further explanation thereof is omitted.

The first heater 120 may heat the thermoplastic sheet 1 by a radiant heating method, but the present invention is not limited thereto. For example, the first heater 120 may heat the thermoplastic sheet 1 by heating by hot air. The first heater 120 may include a heat source 121 such as a heater that generates heat by electric resistance or a light source that emits light including a specific wavelength, A blower (not shown) for discharging air.

The second heater 130 may also be applied to the first heater 120. In this embodiment, a heater is applied to the first heater 120 and a heating method using hot air is applied to the second heater 130, but the present invention is not limited thereto.

The second heater 130 discharges the hot air generated by the heating element 171 and a blower (not shown) forcing the air flow toward the bottom surface of the thermoplastic sheet 1. The heating member 171 is provided in the heating box 170 mounted on the heater support 140 and the second heater 130 and the heating box 170 are mounted on the support arm 172 .

The support arm 172 is a path for hot air to transfer hot air from the heating box 170 to the second heater 130 as an empty tube so that hot air can flow, The heat generated by the heating element 171 is transferred to the inside of the second heater 130 inside the first heater 170.

Although not shown, the support arm 172 may be provided with the above-described blower, for example, a fan. The heating box 170 is formed in an air intake hole (not shown) for introducing outside air.

The sheet supporter 110 includes a sheet holder 111 for fixing the thermoplastic sheet 1 and a holder support 112 for supporting the sheet holder 111. The sheet holder 111 supports the edge of the thermoplastic sheet 1 and exposes an upper surface of the thermoplastic sheet 1 toward the first heater 120. The lower surface of the thermoplastic sheet 1 And exposed to the second heater 130 side.

More specifically, the sheet holder 111 clamps the edges of the thermoplastic sheet 1 to support the thermoplastic sheet 1. In this embodiment, the sheet holder 111 is vertically movable The edge of the thermoplastic sheet 1 is fixed by the sheet holder 111 as a ring shape (ring shape) such as a circle or a rectangle penetrating through the thermoplastic sheet 1. In this embodiment, the sheet holder 111 is a circular ring structure so as to correspond to the shape of the thermoplastic sheet 1.

The seat supporter 110 may be configured to be movable between the first heater 120 and the second heater 130. For example, the seat supporter 110 can be configured to be movable in the vertical direction (Z-axis direction) and / or the horizontal direction (X-axis and / or Y-axis direction).

The seat supporter 110 can be raised and lowered in the vertical direction and the seat holder 111 is lifted up to the above-mentioned seat heating position, that is, between the first heater 120 and the second heater 130 Lt; / RTI > Of course, the thermoplastic sheet 1 may be moved to one side in the sheet heating position for easy loading.

3 and 4, the second heater 130 has a shape vertically penetrating through the sheet supporter 110, in particular, the sheet holder 111, And the through hole 130a of the second heater may be formed in such a size that the sheet supporter, particularly the sheet holder 111, can pass through in the vertical direction .

More specifically, the second heater 130 includes a donut-shaped heater frame 131 having the through-hole 130a formed therein, a hot discharge hole 132 formed in the heater frame 131 for discharging hot air, As shown in FIG. The heater frame 131 is a hollow hollow body, and hot air is supplied into the heater frame 131 through the support arm 172.

The diameter of the through hole 130a is larger than the outer diameter of the sheet holder 111 and the hot air discharge hole 132 is formed on an inner slope of the heater frame 131 toward the bottom surface of the thermoplastic sheet 1. [ do.

When the longitudinal section of the heater frame 131 is circular as in the present embodiment, the plurality of hot discharge holes 132 are formed along the inner circumferential surface of the heater frame 131 at the upper half of the inner slopes of the heater frame 131 . It is obvious to those skilled in the art that the heat frame 131 may be made of a variety of materials such as a metal or a plastic material having excellent heat resistance, rather than the second heater 130.

Further, the heater frame 131 may be formed with a supporter elevator 130b so that the holder supporter 112 can pass in the vertical direction. In this embodiment, the heater frame 131 has a structure in which a gap is formed between one end and the other end of the heater frame 131, that is, one side is opened, and a gap between one end and the other end of the heater frame 131 Thereby forming the supporter elevator 130b. That is, a gap between one end and the other end of the heater frame 131 is formed to be wider than the width of the holder supporter 112.

The heating of the thermoplastic sheet 1 is progressed after the sheet holder 111 rises and is arranged in a line between the first heater 120 and the second heater 130, Upon completion, the seat supporter 110 is immediately lowered and the mouthpiece forming process can proceed.

In the present embodiment, the seat holder 111 ascends and descends in a room immediately above the forming platform 210. The molding platform 210 is a part where the thermoplastic sheet 1 is molded, and the oral model 10 is placed on the upper side of the molding platform 210.

The oral model (10) is a model of a tooth-shaped model, which is also referred to as a tooth model or a tooth model, and is also called a tooth plaster model because it is generally made of gypsum. The oral cavity model 10 is installed on the upper side of the molding platform 210 so that the tooth part faces upward. When the seat supporter 110 is lowered, the thermally softened sheet, Cover upwards

1 and 2, the forming platform 210 is provided on the upper part of the receiving body 150 and the forming platform 210 is provided with at least one sheet adsorption for adsorption of the thermoplastic sheet 1, And a sphere 211 is formed.

In addition, the support body 150 is provided with an air suction device 180 and an air suction path 181 for generating an air suction force in the sheet suction port. In the present embodiment, the seat supporter 110 is installed on the support body 150 so as to be installed on one side of the molding platform 210.

5, when the sheet holder 111 is lowered and hermetically attached to the rim of the molding platform 210 after the heating of the thermoplastic sheet 1 is completed, The thermoplastic sheet 1 is adhered to the surface of the oral cavity model 10 by the operation of the oral cavity model 10 and a structure based on the shape of the oral cavity model 10 is formed.

After the structure is cured, the mouthpiece is completed through an appearance finishing process such as cutting of the structure.

The seat holder 111 can be raised or lowered manually or automatically. For example, the holder support 112 may include a retractable post that is manually expanded and retracted, and a transmission device (not shown) that hermetically holds / holds the forming platform 210 by pulling the seat holder 111 downward, It may also include stanchions that are automatically stretched by oil / pneumatic devices.

6, the sheet holder 111 of the sheet supporter includes a holder base 111a for supporting the bottom surface of the thermoplastic sheet 1, and a holder base 111b for pressing the upper surface of the thermoplastic sheet 1 to form the thermoplastic And a seat fixing ring 111b for fixing the seat 1 to the holder base 111a.

The holder base 111a also has a ring shape penetrating the holder base 111a in the up and down direction. On the inner side surface of the holder base 111a is formed a support step 111c for supporting the edge of the thermoplastic sheet 1 from below, The fixing ring 111b is mounted on the upper side of the base plate 111c to press the edge of the thermoplastic sheet 1 from above.

A fixing slot 111d in the spiral direction for fixing the seat fixing ring 111b is formed on the peripheral wall of the holder base 111a to have a predetermined length and the edge of the seat fixing ring 111b is fixed to the fixing slot 111b 111d, respectively.

Therefore, after the seat fixing ring 111b is mounted on the holder base 111a such that the locking member 111e is positioned at the entrance of the fixing slot 111d, the locking member 111e is inserted into the fixing slot 111d, The seat fixing ring 111b is fixed to the holder base 111a and the thermoplastic sheet 1 is clamped by turning the seat fixing ring 111b so as to enter the holder base 111a.

In the case where the seat supporter 110 has a seat holder having the structure shown in Fig. 6, the through-hole 130a of the second heater is formed to have a diameter allowing the engaging member 111e to pass therethrough.

7 and 8 show another embodiment of the second heater. FIG. 7 shows a state in which the heat discharging holes 132 are formed on the inner surface of the upper half of the second heater in the vertical direction and the inner peripheral direction, 2 heater 130, and FIG. 8 shows a donut-shaped second heater 130 whose longitudinal section is triangular.

Next, referring to Figs. 9 to 13, other embodiments of the sheet heater according to the present invention and a mouthpiece molding apparatus having the same will be described.

9 and 10, another embodiment (a second embodiment) of the sheet heater according to the present invention includes a sheet supporter 110, a first heater 120 and a second heater 130 , Another embodiment of the mouthpiece forming apparatus according to the present invention comprises the sheet heater and a forming platform (210).

In this embodiment, the sheet supporter 110 is disposed between the first heater 120 and the second heater 130, that is, between the first heater 120 and the second heater 130, It is a movable structure.

For example, the seat supporter 110 can horizontally move in the layer between the first heater 120 and the second heater 130 by rotational movement. More specifically, the seat supporter 110 includes a seat holder 111 and a holder support 112. The holder support 112 is rotatable about a vertical support 112a to be.

Therefore, the seat holder 111 rotates with respect to the pillars 112a of the holder support. Of course, the seat supporter 110 may be linearly moved by an actuator or a manual operation that generates a linear movement.

The first heater 120 and the second heater 130 are supported by a heater support 140. In the present embodiment, the first heater 120 and the second heater 130 are aligned in a vertical direction And the heater support 140 is fixed to the support body 150.

The first heater 120 and the second heater 130 are provided on one side of the forming platform 210 and the sheet holder 111 is disposed on the first heater 120 for heating the thermoplastic sheet 1, And after the heating of the thermoplastic sheet 1 is completed, the thermoplastic sheet 1 is rotated and moved downward to the upper chamber of the molding platform 210, And the mouthpiece forming process by the air aspirator 180 described in the above-described embodiment proceeds.

As described above, the seat supporter 110 in the present embodiment is capable of rotating and moving up and down. The first heater 120 and the second heater 130 are fixed on the upper side of the forming platform 210, And is immovably provided at a position outside the distance.

Other than the contents described in the present embodiment (second embodiment), since the contents described in the above-described embodiment (first embodiment) can be applied to the respective constituent elements of the embodiment in the same manner, Is omitted.

Next, another embodiment (third embodiment) of the sheet heater and the mouthpiece molding apparatus according to the present invention will be described with reference to Figs. 11 to 13. Fig.

11 to 13, another embodiment (third embodiment) of the sheet heater according to the present invention includes a sheet supporter 110, a first heater 120 and a second heater 130, And another embodiment of the dental mouthpiece forming apparatus according to the present invention comprises the sheet heater and the forming platform 210.

The first heater 120 and the second heater 130 are installed on the supporting body 150 by separate heater supports 140A and 140B and the seat supporter 110 is installed in the horizontal position Without any change.

More specifically, the first heater 120 is movably disposed in the receiving body 150, and the second heater 130 is disposed in a stationary or immovable manner in a region directly above the molding platform 210.

The seat supporter 110 is disposed on the upper side of the second heater 130 for heating the thermoplastic sheet 1 and the first heater 120 is moved to the upper portion of the seat supporter 110 Heat is applied to the upper surface of the thermoplastic sheet 1 and the thermoplastic sheet 1 is returned to its original position after the heating of the thermoplastic sheet 1 is completed.

After the heating of the thermoplastic sheet 1 is completed, the sheet supporter 110, particularly the sheet holder 111, is lowered, so that the oral model 10 is covered with the thermoplastic sheet 1.

The contents described in the above-described embodiments (the first embodiment and the second embodiment) can be applied to each component of the present embodiment in the same manner, except for the contents described in the present embodiment (third embodiment) The repetitive description of FIG.

It will be apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. It is obvious to them.

Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

1: thermoplastic sheet 10: oral model
110: Seat supporter 111: Seat holder
112: holder support 120: first heater
130: second heater 130a: through hole
130b: supporter elevator 131: heater frame
132: hot discharge hole 140: heater support
150: Support body 160: Actuator
170: heating box 171: heating element
172: Support arm 180: Air sucker
181: Air intake flow path 210: Molding platform
211: sheet adsorber

Claims (14)

A heater for a thermoplastic sheet for forming a mouthpiece, comprising:
A sheet supporter for supporting the thermoplastic sheet;
A first heater for applying heat to an upper side of the thermoplastic sheet at an upper side of the sheet supporter; And
And a second heater for applying heat to the bottom surface of the thermoplastic sheet at a lower side of the sheet supporter,
Wherein at least one of the first heater and the second heater is movable. The method according to claim 1,
The seat supporter comprising:
A sheet holder for supporting an edge of the thermoplastic sheet and exposing an upper surface of the thermoplastic sheet toward the first heater and exposing a bottom surface of the thermoplastic sheet toward the second heater;
And a holder support for supporting the sheet holder. ≪ RTI ID = 0.0 > 11. < / RTI > 3. The method of claim 2,
The sheet holder comprising: And the thermoplastic sheet is clamped on the edge of the thermoplastic sheet to support the thermoplastic sheet. The method according to claim 1,
Wherein the sheet supporter is movable so as to be positioned between the first heater and the second heater. 5. The method of claim 4,
Wherein the sheet supporter is horizontally movable in a layer between the first heater and the second heater. 6. The method of claim 5,
Wherein the sheet supporter horizontally moves in a layer between the first heater and the second heater by rotational movement. The method according to claim 1,
Wherein at least one of the first heater and the second heater is movable in at least one of a rotational movement and a linear movement. The method according to claim 1 or 4,
Wherein the second heater is in a donut shape having a through hole in a vertical direction. 9. The method of claim 8,
Wherein the through-hole of the second heater is formed to have a size such that the sheet supporter can pass through in the up-and-down direction. 9. The method of claim 8,
The second heater comprises:
A donut-shaped heater frame having the through-holes formed therein,
A heater for a mouthpiece molding thermoplastic sheet, comprising: a heat discharging hole formed in the heater frame for releasing heat. 11. The method of claim 10,
Wherein the hot discharge hole is formed on an inner slope surface of the heater frame facing the bottom surface of the thermoplastic sheet. 11. The method of claim 10,
The seat supporter comprising: A sheet holder for supporting the edge of the thermoplastic sheet and exposing an upper surface of the thermoplastic sheet toward the first heater and exposing a bottom surface of the thermoplastic sheet toward the second heater; Includes:
Wherein the through holes of the heater frame are formed in such a size that the seat supporter can pass through in the vertical direction; And a supporter elevator is formed at one side of the heater frame so that the holder supporter can pass through the supporter in a vertical direction. A mouthpiece forming apparatus for manufacturing a mouthpiece for tooth care or correction by closely adhering thermally softened thermoplastic sheet to an oral model having a tooth arrangement,
A forming platform on which the oral model is placed;
A sheet supporter provided at one side of the forming platform and supporting the thermoplastic sheet for molding of the mouthpiece and being vertically movable up and down;
A first heater for applying heat to an upper side of the thermoplastic sheet at an upper side of the sheet supporter; And
And a second heater for applying heat to the bottom surface of the thermoplastic sheet at a lower side of the sheet supporter,
Wherein at least one of the first heater and the second heater is movable. 14. The method of claim 13,
The forming platform comprising: And a sheet adsorption device for adsorbing the thermoplastic sheet to bring the thermoplastic sheet into close contact with the upper surface of the oral cavity model.

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