A process for manufacturing a dental tray

Abstract

The application is a manufacturing process of a dental tray, comprising a circuit board, a first injection body and a second injection body, and the circuit board is provided with a detection electrode, and the manufacturing process comprises the following steps: a first injection step, injection molding the first injection body, the first injection body is injection molded with a positioning hole penetrating through the first injection body, a mounting seat is arranged on the back surface of the first injection body, the circuit board is mounted in the mounting seat, the detection electrode is a positioning column, the detection electrode extends to the front surface of the first injection body through the positioning hole and positions the circuit board; a second injection step, injection molding the second injection body on the basis of the first injection body, the second injection body covers the circuit board mounted on the back surface of the first injection body, a dental bracket is formed on the front side of the circuit board, the detection electrode leaks out of the second injection body on the front surface of the first injection body, and a detection loop is formed through the detection electrode and the oral cavity. The application improves the waterproof manufacturing process of the dental tray.

Description

Technical Field

[0001] This invention relates to the field of oral care, and in particular to a manufacturing process for a dental tray. Background Technology

[0002] A teeth whitening device is a device that uses blue light to whiten teeth. It includes a tray containing a circuit board with LEDs. When using the device, the tray is placed in the mouth, and the LEDs emit blue light that shines on the tooth surface. The whitening effect is achieved through a dual process: the whitening effect of the blue light and the whitening effect of the whitening agents catalyzed by the blue light. Since the tray needs to be in the moist environment of the mouth during operation, it is necessary to improve the waterproof structure of the tray to prevent liquid leakage onto the circuit board and causing circuit board failure. Furthermore, blue light is highly harmful to the eyes. If the tray is removed from the mouth while the LEDs are emitting blue light, the blue light will directly shine into the eyes. Therefore, the tray also needs to be equipped with a safety switch to prevent it from being removed from the mouth while the LEDs are emitting blue light. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned technical problems and provide a manufacturing process for a dental tray. One purpose of this application is to improve the waterproof manufacturing process of dental trays.

[0004] To achieve the above objectives, the technical solutions of the present invention are as follows:

[0005] A manufacturing process for a dental tray includes a circuit board, a first injection molded body, and a second injection molded body. The circuit board is a flexible circuit board and has detection electrodes. The manufacturing process includes the following steps:

[0006] In the first injection molding step, the first injection body is injection molded. The first injection body has a positioning hole that penetrates through the first injection body. A mounting base is provided on the back of the first injection body. The circuit board is installed in the mounting base. The detection electrode is a positioning post that extends through the positioning hole to the front of the first injection body and positions the circuit board.

[0007] In the second injection molding step, a second injection molding body is formed again based on the first injection molding body. The second injection molding body at least completely covers the circuit board mounted on the back of the first injection molding body on the back side, and a tooth bracket is formed on the front side of the circuit board. The detection electrode protrudes from the second injection molding body on the front side of the first injection molding body, and the circuit board forms a detection circuit with the oral cavity through the detection electrode.

[0008] According to the manufacturing process of the dental tray in this solution, the dental tray is divided into a first injection molded body and a second injection molded body. The circuit board is injected into the dental tray through a multi-injection molding process, thus completely avoiding the problem of liquid leakage onto the circuit board when the dental tray is placed in the mouth. In the manufacturing process, the first injection molded body is first injection molded. The first injection molded body serves as the mounting structure for the circuit board, enabling stable installation and facilitating subsequent injection molding processes. Since the circuit board is a flexible circuit board, positioning is required when it is installed onto the first injection molded body. In this solution, the detection electrodes on the circuit board provide positioning for its installation. Furthermore, during normal use of the dental tray, the detection electrodes allow the circuit board to interact with the conductive environment in the oral cavity to form a detection circuit. Through this detection circuit, the dental tray can sense whether it is placed in the mouth, thus forming a safety switch structure. This allows for safety functions such as turning off the blue light when the dental tray is removed from the mouth. In this solution, the detection electrodes not only provide positioning for the circuit board during the dental tray's injection molding process but also form a detection circuit when the dental tray is placed in the mouth for whitening treatments.

[0009] A manufacturing process for a dental tray includes a circuit board, a first injection molded body, and a second injection molded body. The circuit board is provided with detection electrodes. The manufacturing process includes the following steps:

[0010] In the first injection molding step, the first injection body is injection molded, and the first injection body has an electrode hole that penetrates through the first injection body. A mounting base is provided on the back of the first injection body, and the circuit board is installed in the mounting base. The detection electrode extends through the electrode hole to the front of the first injection body.

[0011] In the second injection molding step, a second injection molding body is formed again based on the first injection molding body. The second injection molding body at least completely covers the circuit board mounted on the back of the first injection molding body on the back side, and a tooth bracket is formed on the front side of the circuit board. The detection electrode protrudes from the second injection molding body on the front side of the first injection molding body, and the circuit board forms a detection circuit with the oral cavity through the detection electrode.

[0012] According to the manufacturing process of the dental tray in this solution, the dental tray is divided into a first injection molded body and a second injection molded body. The circuit board is injected into the dental tray through a multi-injection molding process, thereby completely avoiding the problem of liquid leakage onto the circuit board when the dental tray is placed in the mouth. In the manufacturing process, the first injection molded body is first injection molded. The first injection molded body serves as the mounting structure for the circuit board, enabling the circuit board to be stably installed and facilitating subsequent injection molding processes. The detection electrode can also enable the circuit board to form a detection circuit by cooperating with the conductive environment in the oral cavity during normal use of the dental tray. Through the detection circuit, the dental tray can sense whether it is placed in the oral cavity. Therefore, a safety switch structure can be formed through this detection circuit to realize safety functions such as turning off the blue light when the dental tray is removed from the mouth.

[0013] A manufacturing process for a dental tray includes a circuit board, a first injection molded body, and a second injection molded body. The circuit board is a flexible circuit board and has positioning posts. The manufacturing process includes the following steps:

[0014] In the first injection molding step, the first injection molded body is injection molded, the first injection molded body has positioning holes, a mounting base is provided on the back of the first injection molded body, the circuit board is installed in the mounting base, and is positioned by the positioning pin inserted into the positioning hole;

[0015] In the second injection molding step, a second injection molded body is formed again based on the first injection molded body. The second injection molded body at least completely covers the circuit board mounted on the back of the first injection molded body, and a toothed bracket is formed on the front side of the circuit board.

[0016] According to the manufacturing process of the dental tray in this solution, the dental tray is divided into a first injection molded body and a second injection molded body. The circuit board is injected into the dental tray through a multi-injection molding process, thereby completely avoiding the problem of liquid leakage onto the circuit board when the dental tray is placed in the mouth. In the manufacturing process, the first injection molded body is first injection molded. The first injection molded body serves as the mounting structure for the circuit board, enabling the circuit board to be installed stably and facilitating subsequent injection molding processes. Furthermore, since the circuit board is a flexible circuit board, its position needs to be positioned when it is installed onto the first injection molded body to prevent the circuit board from detaching from the mounting base, thereby preventing the circuit board from affecting subsequent injection molding processes and improving the yield rate of the dental tray product.

[0017] Furthermore, the second injection molded body includes a first encapsulated body and a second encapsulated body; the first encapsulated body is formed on the front side of the first injection molded body, the second encapsulated body is formed on the back side of the first injection molded body, and the second encapsulated body extends from the side of the first injection molded body to its front side to connect with the first encapsulated body;

[0018] In the second injection molding step, the first encapsulated body is first injection molded based on the first injection molded body, and then the second encapsulated body is injection molded. The second injection molded body is formed by multiple injection molding processes to avoid poor injection molding results due to the second injection molded body being too large.

[0019] Furthermore, the circuit board is also equipped with LED beads, which automatically turn off power when the detection circuit is disconnected. This ensures that the blue light is immediately switched off when the mouthpiece is removed from the mouth, preventing blue light from harming the eyes.

[0020] Furthermore, the first injection-molded body is made of rigid plastic, while the second injection-molded body is made of soft plastic. The first injection-molded body, made of rigid plastic, serves as a supporting framework, while the second injection-molded body, made of soft plastic, improves the mouthfeel and increases the elasticity of the denture, facilitating adaptive elastic deformation of the denture within the oral cavity.

[0021] Furthermore, the first injection-molded body includes a connecting portion and an extension portion, the extension portion being symmetrically arranged on both sides of the connecting portion, and making the first injection-molded body as a whole arc-shaped.

[0022] Furthermore, the back of the first injection-molded body is an arc-shaped surface, and the mounting base is also arc-shaped, with the circuit board fitted and mounted in the arc-shaped mounting base.

[0023] Furthermore, the connecting part is injection molded with a connecting groove, which communicates with the mounting base, and the circuit board is connected to the power supply through the connecting groove.

[0024] Furthermore, the connecting part is injection molded with a connecting hole, through which the host is connected and the host provides power to the circuit board; the connecting part is injection molded with a sealing groove, the connecting hole and the connecting groove are located in the middle of the sealing groove, and a sealing gasket is provided in the sealing groove, which seals the connection when the connecting part is connected to the host. Attached Figure Description

[0025] Figure 1 This is a perspective view of the dental tray of the present invention.

[0026] Figure 2 This is a perspective view of the first injection molded body of the present invention.

[0027] Figure 3 This is a perspective view of the first injection-molded body with a circuit board mounted on it according to the present invention.

[0028] Figure 4 This is a perspective view of the first package of gel injection molded dental tray of the present invention.

[0029] Figure 5This is a perspective view of the second package of gel injection molded dental tray of the present invention.

[0030] Figure 6 This is a cross-sectional view of the injection-molded portion of the dental tray of the present invention.

[0031] Figure 7 This is an exploded view of the dental tray of the present invention. Detailed Implementation

[0032] The manufacturing process of a dental tray according to the present invention is described in conjunction with the accompanying drawings.

[0033] Example 1

[0034] A manufacturing process for a dental tray includes a circuit board 2, a first injection molded body 1, and a second injection molded body. The circuit board 2 is a flexible circuit board, and it is equipped with LED beads and positioning posts. The LED beads emit light to illuminate the tooth surface, producing a whitening effect. The manufacturing process includes the following steps:

[0035] In the first injection molding step, the first injection body 1 is injection molded. The first injection body 1 has a positioning hole. A mounting base 121 is provided on the back side 12 of the first injection body 1. The circuit board 2 is installed in the mounting base 121 and positioned by the positioning post inserted into the positioning hole.

[0036] In the second injection molding step, the second injection molding body is formed again based on the first injection molding body 1. The second injection molding body at least completely covers the circuit board 2 mounted on the back side 12 of the first injection molding body 1, and a tooth bracket 41 is formed on the front side of the circuit board 2.

[0037] like Figure 1 As shown, when using this dental tray, the user places the circuit board 2, the first injection molded body 1, and the portion formed by the second injection molded body into the mouth. The LED beads on the circuit board 2 illuminate the tooth surface, thereby achieving the effect of whitening teeth. Through multiple injection molding processes of the first injection molded body 1 and the second injection molded body, the circuit board 2 is surrounded inside the first injection molded body 1 and the second injection molded body, and the circuit board 2 is directly integrally molded with the first injection molded body 1 and the second injection molded body, thereby completely solving the problem of sealing the dental tray.

[0038] The structure of the positioning holes and positioning pins allows the circuit board 2 to be stably mounted on the first injection body 1. Before the second injection molding step, the circuit board 2 is stably positioned on the mounting base 121 of the first injection body 1 by the cooperation of the positioning holes and positioning pins, so that the circuit board 2 and the first injection body 1 can be placed into the injection mold of the second injection molding step together, and the second injection body can be injection molded again. That is, the positioning function of the positioning holes and positioning pins can facilitate the subsequent injection molding steps to further injection mold the second injection body.

[0039] Example 2

[0040] A manufacturing process for a dental tray includes a circuit board 2, a first injection molded body 1, and a second injection molded body. The circuit board 2 is a flexible circuit board, and LED beads and electrical electrodes 21 are disposed on the circuit board 2. The LED beads emit light to illuminate the tooth surface, producing a whitening effect. The manufacturing process includes the following steps:

[0041] In the first injection molding step, the first injection body 1 is injection molded. The first injection body 1 has an electrode hole that penetrates through the first injection body 1. A mounting base 121 is provided on the back side 12 of the first injection body 1. The circuit board 2 is installed in the mounting base 121. The electrical measuring electrode 21 extends through the electrode hole to the front side 11 of the first injection body 1.

[0042] In the second injection molding step, the second injection molding body is formed again based on the first injection molding body 1. The second injection molding body at least completely covers the circuit board 2 mounted on the back side 12 of the first injection molding body 1, and a tooth bracket 41 is formed on the front side of the circuit board 2. The electrical measuring electrode 21 protrudes from the second injection molding body from the front side 11 of the first injection molding body 1. The circuit board 2 forms a detection circuit with the oral cavity through the electrical measuring electrode 21.

[0043] like Figure 6 As shown, this embodiment further improves the structure of the dental tray by solving the sealing problem through multiple injection molding. After multiple injection molding, an electrical testing electrode 21 that can be exposed through the second injection molded body is formed. When the dental tray is placed in the oral cavity, the electrical testing electrode 21 can cooperate with various conductive environments in the oral cavity (such as saliva in the oral cavity, the human body forming the oral cavity, etc.) to enable the circuit board 2 to form a conductive detection circuit. When the dental tray is removed from the oral cavity, the detection circuit will be disconnected. Thus, a safety switch structure can be formed according to the conduction and disconnection of the detection circuit. For example, when the LED bead is disconnected, it will automatically cut off the power, thereby avoiding the problem of the LED light still illuminating and hurting the eyes when the dental tray is removed from the oral cavity.

[0044] The leakage of the electrical measuring electrode 21 from the front side 11 of the first injection body 1 into the second injection body includes at least three cases: case 1 is that the second injection body completely does not cover the electrical measuring electrode 21; case 2 is that the second injection body only covers the side part of the electrical measuring electrode 21; and case 3 is that the second injection body completely covers the side of the electrical measuring electrode 21, and exposes the end face of the electrical measuring electrode 21 outside the second injection body.

[0045] Example 3

[0046] This embodiment further improves the manufacturing process of the dental tray based on Embodiments 1 and 2, combining the functions of the positioning post and the electrical measuring electrode 21 to form a structure of the electrical measuring electrode 21 with positioning function. For example... Figures 1 to 7 As shown, the specific manufacturing process of the dental tray in this embodiment includes a circuit board 2, a first injection molded body 1, and a second injection molded body. The circuit board 2 is a flexible circuit board, and it is equipped with LED beads and electrical electrodes 21. The LED beads emit light to illuminate the tooth surface, producing a whitening effect. The manufacturing process includes the following steps:

[0047] In the first injection molding step, the first injection body 1 is injection molded. The first injection body 1 has a positioning hole that penetrates through the first injection body 1. A mounting base 121 is provided on the back side 12 of the first injection body 1. The circuit board 2 is installed in the mounting base 121. The electrical testing electrode 21 is a positioning post. The electrical testing electrode 21 extends through the positioning hole to the front side 11 of the first injection body 1 and positions the circuit board 2.

[0048] In the second injection molding step, the second injection molding body is formed again based on the first injection molding body 1. The second injection molding body at least completely covers the circuit board 2 mounted on the back side 12 of the first injection molding body 1, and a tooth bracket 41 is formed on the front side of the circuit board 2. The electrical measuring electrode 21 protrudes from the second injection molding body from the front side 11 of the first injection molding body 1. The circuit board 2 forms a detection circuit with the oral cavity through the electrical measuring electrode 21.

[0049] In this embodiment, the electrical measuring electrode 21 can not only position the installation of the circuit board 2 during the injection molding process of the dental tray, but also form a detection circuit when the dental tray is placed in the oral cavity for whitening. This allows this embodiment to have the beneficial effects of both embodiment 1 and embodiment 2 at the same time, so that the circuit board 2 can achieve both effects with only one device, and the structure of the circuit board 2 can be made simpler.

[0050] The leakage of the electrical measuring electrode 21 from the front side 11 of the first injection body 1 into the second injection body includes at least three situations: situation 1 is that the second injection body completely does not cover the electrical measuring electrode 21; situation 2 is that the second injection body only covers the side part of the electrical measuring electrode 21; and situation 3 is that the second injection body completely covers the side of the electrical measuring electrode 21, and exposes the end face of the electrical measuring electrode 21 outside the second injection body.

[0051] like Figures 1 to 7 As shown, this application further improves the structure of the dental tray based on the above embodiments:

[0052] like Figure 2As shown, the first injection-molded body 1 includes a connecting portion 13 and an extension portion 14. The extension portion 14 is symmetrically arranged on both sides of the connecting portion 13, making the first injection-molded body 1 as a whole arc-shaped. The first injection-molded body 1 acts as a skeleton, the connecting portion 13 in the middle is used to connect to the external host 5, and the extension portion 14 facilitates the installation of the circuit board 2, so that the LED beads on the circuit board 2 can be aligned with the teeth in the oral cavity.

[0053] The second injection molded body includes a first encapsulated body 3 and a second encapsulated body 4; the first encapsulated body 3 is formed on the front side 11 of the first injection molded body 1, and the second encapsulated body 4 is formed on the back side 12 of the first injection molded body 1, and the second encapsulated body 4 extends from the side of the first injection molded body 1 to its front side 11 to connect with the first encapsulated body 3; in the second injection molding step, the first encapsulated body 3 is first injection molded on the basis of the first injection molded body 1, and then the second encapsulated body 4 is injection molded. Figure 6 As shown, the second injection molded body wraps around the extension 14 from multiple directions on the front and rear sides, making the second injection molded body relatively thick. Therefore, a multi-injection molding process is also used when molding the second injection molded body, such as... Figure 3 As shown, after mounting the circuit board 2 onto the first injection molded body 1, then... Figure 4 As shown, first form the first package of colloid 3, then as... Figure 5 As shown, the second package of colloid 4 is molded to improve the overall molding effect of the second package of colloid 4, thereby increasing the product yield.

[0054] like Figure 1 As shown, the second pack of colloid 4 has an irradiation surface 42 corresponding to the lamp bead. The irradiation surface 42 is evenly arranged on the upper and lower sides of the tooth bracket 41 to facilitate the illumination of the upper and lower rows of teeth.

[0055] The first injection-molded body 1 is made of rigid plastic and serves as a supporting skeleton. The second injection-molded body is made of soft plastic, which improves the taste and increases the elasticity of the dental tray, making it easier for the dental tray to adapt to elastic deformation in the oral cavity.

[0056] The back surface 12 of the first injection-molded body 1 is arc-shaped, and the mounting base 121 is also arc-shaped. The circuit board 2 is fitted and mounted in the arc-shaped mounting base 121, as shown below. Figure 5 As shown, this makes the final injection-molded dental tray also have an overall arc shape, so that the dental tray can better fit the curve of the teeth.

[0057] The connecting part 13 is injection molded with a connecting groove 131, which connects to the mounting base 121, and the circuit board 2 is connected to the power supply through the connecting groove 131.

[0058] The connecting part 13 is injection molded with a connecting hole 132, which is fixed to the host 5 by screws, and the host 5 provides power to the circuit board 2; the connecting part 13 is injection molded with a sealing groove 133, the connecting hole 132 and the connecting groove 131 are located in the middle of the sealing groove 133, and a sealing gasket is provided in the sealing groove 133, which seals the connection when the connecting part 13 is connected to the host 5.

[0059] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.

Claims

1. A process for manufacturing a dental tray, characterized in that, The application relates to a manufacturing process of a tooth detection device, which comprises a circuit board, a first injection body and a second injection body, wherein the circuit board is a flexible circuit board, the circuit board is provided with a detection electrode, the manufacturing process comprises the following steps: a first injection step, in which the first injection body is injection molded, the first injection body is arc-shaped as a whole, the first injection body is injection molded with a positioning hole penetrating through the first injection body, a mounting seat is arranged on the back surface of the first injection body, the circuit board is mounted in the mounting seat, the detection electrode is a positioning column, the detection electrode extends to the front surface of the first injection body through the positioning hole and positions the circuit board; and a second injection step, in which the second injection body is injection molded on the basis of the first injection body, the second injection body at least completely covers the circuit board mounted on the back surface of the first injection body, tooth bracket slots are formed on the front side of the circuit board, the detection electrode leaks out of the second injection body on the front surface of the first injection body, and the circuit board forms a detection circuit in the oral cavity through the detection electrode.

2. A process for manufacturing a dental tray, characterized in that, The application relates to a manufacturing process of a tooth detection device, which comprises a circuit board, a first injection body and a second injection body, wherein the circuit board is provided with a detection electrode, the manufacturing process comprises the following steps: a first injection step, in which the first injection body is injection molded, the first injection body is arc-shaped as a whole, the first injection body is injection molded with an electrode hole penetrating through the first injection body, a mounting seat is arranged on the back surface of the first injection body, the circuit board is mounted in the mounting seat, the detection electrode extends to the front surface of the first injection body through the electrode hole; and a second injection step, in which the second injection body is injection molded on the basis of the first injection body, the second injection body at least completely covers the circuit board mounted on the back surface of the first injection body, tooth bracket slots are formed on the front side of the circuit board, the detection electrode leaks out of the second injection body on the front surface of the first injection body, and the circuit board forms a detection circuit in the oral cavity through the detection electrode.

3. The manufacturing process of a dental tray according to claim 1 or 2, characterized in that, The second injection body comprises a first encapsulating body and a second encapsulating body; the first encapsulating body is formed on the front surface of the first injection body, the second encapsulating body is formed on the back surface of the first injection body, and the second encapsulating body extends from the side surface of the first injection body to the front surface to connect the first encapsulating body; in the second injection step, the first encapsulating body is injection molded on the basis of the first injection body, and then the second encapsulating body is injection molded.

4. The manufacturing process of a dental tray according to claim 1 or 2, characterized in that, The circuit board is further provided with an LED lamp bead, and the LED lamp bead is automatically powered off when the detection circuit is disconnected.

5. The manufacturing process of a dental tray according to claim 1 or 2, wherein, The first injection body is injection molded by using hard plastic, and the second injection body is injection molded by using soft plastic.

6. The manufacturing process of a dental tray according to claim 1 or 2, wherein, The first injection body comprises a connecting part and an extending part, and the extending part is symmetrically arranged on the two sides of the connecting part.

7. The manufacturing process of a dental tray according to claim 6, wherein, The back surface of the first injection body is an arc surface, and the mounting seat is also arc-shaped, and the circuit board is attached and mounted in the arc-shaped mounting seat.

8. The manufacturing process of a dental tray according to claim 6, wherein, The connecting part is injection molded with a connecting groove, the connecting groove is communicated with the mounting seat, and the circuit board is communicated with a power supply through the connecting groove.

9. The manufacturing process of a dental tray according to claim 8, wherein, The connecting part is injection molded with a connecting hole, through which the main machine is connected, and through which the main machine provides power supply for the circuit board; the connecting part is injection molded with a sealing groove, the connecting hole and the connecting groove are arranged in the middle of the sealing groove, and a sealing gasket is arranged in the sealing groove, which is sealed when the connecting part is connected with the main machine.

Images