TW202339691A - Vacuum forming method and vacuum forming apparatus for film-like structure comprising protruded body - Google Patents

Abstract

A vacuum forming method and vacuum forming apparatus for film-like structure comprising protruded body. The forming method comprises the following steps: fixing a flat film comprising the protruded body on a sealing device; fixing a product model on a vacuuming device; setting a transfer device to clamp on the protruded body; setting a heating device to heat the flat film to soften the flat film; controlling the transfer device to displace the protruded body to a predetermined forming position; the sealing device is closely attached to the vacuuming device; the vacuuming device extracts the air between the flat film and the product model to generate negative pressure, so that the flat film can be completely attached to the surface of the product model thereby forming a finished film comprising protruded body; the finished film comprising protruded body is taken out after cooling.

Description

Vacuum forming method for film-like objects containing protruding structures and forming equipment thereof

The present invention relates to a vacuum forming method and forming equipment for a film-like object containing a protruding structure. It is a method and forming equipment for rapidly forming a thin shell-like plastic structure. In particular, the thin shell-like plastic structure has a system of Contains special protruding structure structure.

With the development of science and technology, the processing and manufacturing of plastics or other plastic molecular structures has become quite mature. There is currently a plastic molecular structure that uses vacuuming to quickly attach the film in a plastic state to the surface of the mold. It can be further made into products such as The mold's surface outlines a thin shell-like plastic structure.

This molding method is suitable for manufacturing irregular contours or specific customized products, such as invisible braces. Each patient's teeth have a specific irregular contour. Therefore, after manufacturing a dental mold of the patient's corresponding size, the above-mentioned It is formed based on the familiar technology.

However, such molding technology is currently uncontrollable, because when the film is quickly attached to the surface of the mold, it is irregular and not conducive to calculation. Therefore, if the thin shell-like plastic structure is to be placed at a specific position in the finished product If you design a special structure on the side of the invisible braces, for example, if you design a fastening structure on the side of the invisible braces, it will be difficult to ensure the molding position of the fastening structure, and it will easily become a defective product. If you use adhesive methods to fix the special structure to the finished thin shell plastic structure, There will be problems with poor stability.

Before the film is formed, a special structure is first constructed using computer simulation and preformed at a predetermined position on the film. Through a controllable transfer device, the special structure is pre-formed when the film softens. Move to the molding position along the simulated path, and then vacuum-form the film on the surface of the mold to create a thin shell-like plastic structure with the special structure, which is the solution of the present invention.

The method for forming a film containing protruding structures of the present invention includes the following steps: forming one or more protruding structures on a flat film; fixing the flat film containing the protruding structures on a seal device; fix a product model on a vacuum device; clamp one or more transfer devices on each protruding structure respectively; use a heating device to heat the flat film so that the The flat film is softened; the transfer device is controlled to move the protruding structure to a predetermined molding position calculated based on the position of the product model fixed on the vacuum device; the sealing device is closely connected to the vacuum device The vacuum device allows the flat film to correspond to the top of the product model; the vacuum device draws out the air between the flat film and the product model to generate negative pressure, allowing the flat film to completely adhere to the product model. surface and shaped into a finished film containing protruding structures.

More specifically, the protruding structure is formed on the flat film by bonding or integrally forming during the production of the flat film.

More specifically, the heating device heats the bottom of the flat film.

More specifically, the transfer device displaces the protruding structure through three-dimensional vector control.

More specifically, the finished film is cooled and taken out, and then trimmed to become the final product.

The present invention further covers molding equipment for implementing the above method.

The molding equipment for film-like objects containing protruding structures of the present invention at least includes a vacuum device, a sealing device, a transfer device, a heating device and a control host. The vacuum device has a positioning platform. There is a positioning element on the positioning platform. The positioning element is used to fix a product model. A sealing ring is installed on the periphery of the positioning platform. The sealing device is corresponding to the vacuum device and is inside the sealing device. The edge can be closely connected with a buckle to facilitate sandwiching a flat film containing one or more protruding structures between the buckle and the sealing device. A lifting device is fixed on the sealing device. The lifting device It is electrically connected to a control host, and the control host can drive the lifting device to drive the sealing device to lift above the vacuum device, and when it is lowered, it can be close to the sealing ring, so that the flat film and the positioning platform A sealed space is formed between them; the transfer device is located on one side of the sealing device for clamping or displacing the protruding structure on the flat film. The transfer device is connected to a driver to control the transfer device. Move, and the driver is electrically connected to the control host; the heating device is located on one side of the sealing device for heating the flat film sandwiched between the buckle and the sealing device, on the heating device A shifter is fixed therein, and the heating device and the shifter are electrically connected to the control host.

In a preferred embodiment, the product model has a standard base, and the bottom of the base is combined with the positioning element to position the product model on the positioning platform.

In a preferred embodiment, the positioning component uses concave and convex structures, buckles or tenons to combine the product model and the positioning platform.

In a preferred embodiment, the driver controls the transfer device to move in two dimensions or three dimensions.

In a preferred embodiment, the heating device uses infrared heating.

The method of the present invention is illustrated by the following examples, but the present invention is not limited by the following examples.

As used herein, the term "integrated molding" refers to one or more structures that are combined into the same body during manufacturing, or corresponding structures on the same body due to different positions, shapes, and functions.

The present invention is a method for forming a film-like object containing a protruding structure. The method is used for one-time vacuum forming of a film-like object containing a protruding structure. The steps of the method are as follows: A. Molding one or more protruding structures on a flat film, the molding method can be through adhesion or integral molding when manufacturing the flat film; B. Fix the flat membrane containing protruding structures on a sealing device; C. Fix a product model on a vacuum device; D. Provide one or more transfer devices, which are respectively clamped on each of the protruding structures; E. Set up a heating device, move the heating device to the bottom of the flat film, and heat the bottom of the flat film to soften the flat film. After the heating is completed, move the heating device aside; F. Operate the transfer device to fold, pull or move the protruding structure to a predetermined forming position calculated based on the position of the product model fixed on the vacuum device using three-dimensional vector control; G. The transfer device and the sealing device are synchronously moved to the top of the vacuum device, and the sealing device is closely connected to the vacuum device, so that the flat film can correspond to the top of the product model; H. The vacuum device draws out the air between the flat film and the product model to generate negative pressure, so that the flat film can be completely attached to the surface of the product model and formed into a finished film containing a protruding structure; I. After cooling, take out the finished film containing the protruding structure and trim it into the final product.

In addition to the above methods, the present invention is also a vacuum forming equipment for membranes containing protruding structures. In the following detailed description of the preferred embodiments with reference to the drawings, the technical content, characteristics and functions of the forming equipment will be described. Can be presented clearly.

As used herein, the articles "a", "an" and "any" refer to the grammar of one or more than one (i.e. at least one) item. For example, "an element" means one element or more than one element.

As used in this article, the terms "fixed", "fixed", "installed", "connected" or "set up" to describe the relationship between structural combinations generally refer to multiple structures that will not easily separate or fall after being combined. It can be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, or a direct physical connection. It can also be indirectly connected through an intermediary, such as using threads, mortises, and buckles. Any combination of tools, nails, adhesives or high frequency waves.

As used herein, the term "on" describing the location of a structure refers to any surface location of the structure, and is not the commonly known directional "above" or "on". The terms "above" and "below" used to describe the position of a structure refer to the directionality of the position of the structure under normal usage.

Please refer to Figure 1. This embodiment takes the production of braces as an example. As shown in the figure, it at least includes a vacuum device 1, a sealing device 2, a transfer device 3, a heating device 4 and a control host 5 , the vacuuming device 1 is used to fix a tooth-shaped product model 6, and the sealing device 2 is used to fix a flat film 7 containing a protruding structure 71.

Please refer to Figures 1 to 2. The vacuum device 1 has a positioning platform 11, and the positioning platform 11 has a positioning element 12. The positioning element 12 is used to fix the tooth profile of the product model 6. The product The model 6 has a standard base 61, and the bottom of the base 61 is combined with the positioning element 12 to position the product model 6 on the positioning platform 11. A sealing ring 13 is installed around the positioning platform 11. ;

The positioning element 12 can use corresponding combination structures such as concave and convex structures, buckles or tenons. This combination structure is a common technical application, so the details will not be repeated;

The product model 6 of the above-mentioned tooth type is a customized mold of human teeth and formed on the standard base 61. This structural technology is a common dental mold used in general dentistry to treat patients' teeth. , so the details will not be repeated.

Please refer to Figures 1 and 3. The sealing device 2 is annular and has a spiral buckle groove 21 around it. The buckle groove 21 can be inserted into a buckle ring 22 so that the buckle ring 22 is closely connected to the seal. On the inner edge of the device 2, a lifting device 23 is fixed on the sealing device 2, and the lifting device 23 is electrically connected to the control host 5;

The flat film 7 is placed on the sealing device 2. When the buckle 22 is inserted into the buckle groove 21, the flat film 7 can be sandwiched between the buckle 22 and the sealing device 2;

The control host 5 can drive the lifting device 23 to drive the sealing device 2 to lift above the vacuum device 1. When descending, it can close to the sealing ring 13 so that there is a gap between the flat film 7 and the positioning platform 12. A sealed space is formed to facilitate the vacuuming operation of the vacuuming device 1 .

Please refer to Figures 1, 3 to 6. The transfer device 3 is located on one side of the sealing device 2 and is used to clamp the protruding structure 71 on the flat film 7 and cooperate with the lifting device 23 to perform lifting movements simultaneously. If If there are two protruding structures 71 , then at least two transfer devices 3 will be provided to hold the protruding structures 71 respectively. Each transfer device 3 is connected to a driver 31 , each driver 31 controls each transfer device 3 to move two-dimensionally or three-dimensionally, and each driver 31 is electrically connected to the control host 5, and through the calculation and setting of the control host 5, control is facilitated. Each driver 31 operates each transfer device 3 to fold, pull or move each protruding structure 71 to a predetermined forming position;

The transfer device 3 can move in two or three dimensions, and can use a transfer device. The transfer device can be a linear arm (orbital type), a SCARA arm, or a joint multi-axis transfer device.

Please refer to Figure 7. In this embodiment, each transfer device 3 symmetrically bends the two protruding structures 71 downward and inward. When the flat film 7 is formed into the product model 6, When braces are used, the two protruding structures 71 will be symmetrically located on both sides as a structure for fixing the braces. When the flat membrane 7 is formed, each transfer device 3 still clamps the protruding structures 71, so that the braces can be To prevent the protruding structure 71 from changing its position, the calculation of the position, angle or direction of these displacements can be done in advance through a computer based on the positioning position of the base 61 on the positioning platform 11 according to the regulations. The path is simulated and constructed;

Please refer to Figure 7. In this embodiment, the flat membrane 7 is used to make braces, and the protruding structure 71 is a buckle structure (a buckle structure) that grows behind both sides of the braces for fixation. hook block and a buckle). However, when used to manufacture different types of products, the protruding structure 71 can be an external protruding structure of any shape or an unspecified shape, and its uses will also be different accordingly. Because the protruding structure 71 can be pre-formed using other technologies, so it can be made into a structure with a special contour shape, thereby breaking through the technical limitations of vacuum forming in the past and producing more braces that are difficult to form.

Please refer to Figures 1, 3 to 5. The heating device 4 is located on one side of the sealing device 2 and can use infrared heating. There is a shifter 41 fixed on the heating device 4. The heating device 4 and the shifter 41 The system is electrically connected to the control host 5;

When the flat film 7 is sandwiched between the buckle 22 and the sealing device 2 , the control host 5 drives the displacer 41 to drive the heating device 4 to the bottom of the sealing device 2 , and turns on the heating device 4 toward the sealing device 2 . The flat film 7 is heated to facilitate subsequent softening and molding operations. Since the protruding structure 71 is clamped by the transfer device 3, the transfer device 3 can help the protruding structure 71 dissipate heat, so that The protruding structure 71 will not be softened and deformed by heat. After heating is completed, the control host 5 drives the displacer 41 again to drive the heating device 4 to move out from under the sealing device 2 .

The above embodiment disclosures are only some of the preferred embodiments of the present invention. However, they are not intended to limit the present invention. Anyone who is familiar with this technical field and has ordinary knowledge will understand the foregoing technical features and embodiments of the present invention. And make equal changes or modifications without departing from the spirit and scope of the present invention (although this embodiment takes braces as an example, it is not only used for making braces, but also for other products such as special-shaped model toy car casings, mobile phone casings, etc.) shell, etc.), it is still within the scope of the present invention, and the scope of patent protection of the present invention shall be determined by the claims attached to this specification.

1: Vacuuming device 11: Positioning platform 12: Positioning components 13:Sealing ring 2:Sealing device 21:Buckle groove 22:Buckle 23:Lifting device 3: Transfer device 31: drive 4:Heating device 41: Displacer 5:Control host 6: Product model 61: Base 7: Flat film 71:Protruding structure

[Figure 1] is a schematic diagram of the overall structural configuration of the vacuum forming equipment containing a protruding structural film according to the present invention. [Figure 2] is a partial cross-sectional schematic diagram of the vacuuming device of the vacuum forming equipment containing a protruding structural film according to the present invention. [Figure 3] is a three-dimensional exploded schematic view of the sealing device of the vacuum forming equipment containing a protruding structural film according to the present invention. [Figure 4] is a schematic cross-sectional view of the vacuum forming equipment for the film-like object containing a protruding structure according to the present invention. [Figure 5] is a schematic cross-sectional view of the vacuum forming equipment of the present invention containing a protruding structural film. [Figure 6] is a schematic cross-sectional view of the film forming equipment of the vacuum forming equipment containing a protruding structure film according to the present invention. [Figure 7] is a schematic diagram of a flat film made by the vacuum forming equipment of the film containing protruding structures according to the present invention.

1: Vacuuming device

11: Positioning platform

12: Positioning components

13:Sealing ring

2:Sealing device

21:Buckle groove

22:Buckle

23:Lifting device

3: Transfer device

31: drive

4:Heating device

41: Displacer

5:Control host

6: Product model

61: Base

7: Flat film

71:Protruding structure

Claims (10)

A vacuum forming method for film-like objects containing protruding structures, including the following steps: Form one or more protruding structures on a flat film; Fix the flat film containing the protruding structure on a sealing device; Fix a product model on a vacuum device; Clamp one or more transfer devices to each protruding structure respectively; Use a heating device to heat the flat film to soften the flat film; Control the transfer device to move the protruding structure to a predetermined molding position calculated based on the position of the product model fixed on the vacuum device; The sealing device is closely connected to the vacuum device, and allows the flat film to correspond to the top of the product model; The vacuum device draws out the air between the flat film and the product model to generate negative pressure, so that the flat film can be completely attached to the surface of the product model and formed into a finished film containing a protruding structure. As claimed in claim 1, the vacuum forming method of a film-like object containing a protruding structure is provided, wherein the protruding structure is formed on the flat film by bonding or integrally forming during the production of the flat film. As claimed in claim 1, the vacuum forming method of a film-shaped object containing a protruding structure is characterized in that the heating device heats the bottom of the flat film. As claimed in Claim 1, the vacuum forming method of a film-like object containing a protruding structure is provided, wherein the transfer device displaces the protruding structure through three-dimensional vector control. For example, the vacuum forming method of a film-shaped object containing a protruding structure as claimed in claim 1, wherein the finished film is cooled and taken out, and then trimmed to become the final product. A vacuum forming equipment for film-like objects containing protruding structures, which at least includes: A vacuum device has a positioning platform, a positioning element on the positioning platform, the positioning element is used to fix a product model, and a sealing ring is installed around the positioning platform; A sealing device is corresponding to the vacuuming device, and a buckle is tightly connected to the inner edge of the sealing device to facilitate sandwiching a flat film containing one or more protruding structures between the buckle and the seal. Between the devices, a lifting device is fixed on the sealing device. The lifting device is electrically connected to a control host. The control host can drive the lifting device to drive the sealing device to lift above the vacuum device, and at the same time, After descending, it can be close to the sealing ring, so that a sealed space is formed between the flat film and the positioning platform; A transfer device is located on one side of the sealing device for clamping or displacing the protruding structure on the flat film. The transfer device is connected to a driver to control the movement of the transfer device, and the driver electrically connected to the control panel; and A heating device is located on one side of the sealing device for heating the flat film sandwiched between the buckle and the sealing device. A displacer is fixed on the heating device, and the heating device and the displacer The system is electrically connected to the control host. For example, the film vacuum forming equipment containing protruding structures of claim 6, wherein the product model has a standard base, and the bottom of the base is combined with the positioning element to position the product model on the positioning platform. superior. For example, the film vacuum forming equipment containing protruding structures of claim 6, wherein the positioning element uses concave and convex structures, buckles or tenons to combine the product model and the positioning platform. For example, in claim 6, the vacuum forming equipment for film-shaped objects containing protruding structures is provided, wherein the driver controls the transfer device to move in two dimensions or three dimensions. As claimed in claim 6, the vacuum forming equipment for film-like objects containing protruding structures is characterized in that the heating device uses infrared heating.

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