Prosthesis manufacturing device control circuit and control method

Abstract

The present invention relates to a control circuit and a control method for a prosthesis production device. The control circuit of the prosthesis production device includes a power supply, which is used to supply power to a driving device. The power supply and the driving device are electrically connected through two parallel circuits; one of the circuits is provided with a switch; the control device controls the connection and disconnection of the other circuit; a signal circuit, which is used to send a signal to the control device, and when the control device receives the signal from the signal circuit, it controls the disconnection of the other circuit; when the control device does not receive the signal from the signal circuit, it connects the other circuit so that the power supply supplies power to the driving device. The control circuit and the control method of the prosthesis production device in the present invention can ensure that the support device supporting the embryo stops in a suitable state, which is convenient for taking and placing the embryo or performing processing operations on the embryo. It is easy and safe to use and has a high degree of automation.

Description

Technical Field

[0001] The invention relates to a control circuit and a control method for a prosthesis manufacturing device. Background Art

[0002] The common method for producing prostheses is to use molds for casting. This method has many drawbacks and cannot meet the demand for more realistic prostheses. Providing a new prosthesis production device, developing a novel control circuit and control method for this device, and improving the automation of prosthesis production are among the major technical challenges faced by those skilled in the art. Summary of the Invention

[0003] One of the purposes of the present invention is to overcome the deficiencies in the prior art and to provide a control circuit and a control method for a prosthesis fabrication device.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0005] A control circuit for a prosthesis production device, characterized by comprising:

[0006] A power supply, the power supply being used to supply power to the driving device, the power supply being electrically connected to the driving device via two parallel circuits;

[0007] A switch is provided on one of the circuits;

[0008] a control device that controls connection and disconnection of another circuit;

[0009] A signal circuit is used to send a signal to the control device. When the control device receives the signal from the signal circuit, it controls to disconnect another circuit; when the control device fails to receive the signal from the signal circuit, it connects another circuit so that the power supply can supply power to the driving device.

[0010] According to one embodiment of the present invention, the signal circuit is a sensor circuit.

[0011] According to one embodiment of the present invention, the sensor circuit is a position sensor circuit.

[0012] According to one embodiment of the present invention, a current regulating device is further included, wherein the current regulating device is used to adjust the current supplied by the power supply to the driving device.

[0013] According to one embodiment of the present invention, the current regulating device is a potentiometer, and the potentiometer is connected in series to one of the circuits between the power supply and the driving device.

[0014] According to one embodiment of the present invention, the signal circuit is a circuit that sends signals intermittently.

[0015] According to one embodiment of the present invention, the driving device includes a first driving device and a second driving device, the power supply is electrically connected to the first driving device through a first circuit and a second circuit connected in parallel; a first switch is provided on the first circuit;

[0016] The signal circuit includes a first signal circuit, the first signal circuit intermittently sends a first signal to the control device, the control device controls the second circuit to be disconnected when receiving the first signal, and controls the second circuit to be connected when the control device fails to receive the first signal;

[0017] The power supply is electrically connected to the second driving device via a third circuit and a fourth circuit connected in parallel; a second switch is provided on the third circuit;

[0018] The signal circuit includes a second signal circuit, the second signal circuit intermittently sends a second signal to the control device, the control device controls the fourth circuit to be disconnected when receiving the second signal, and controls the fourth circuit to be connected when the control device does not receive the second signal;

[0019] According to one embodiment of the present invention, after the control device controls the first driving device to stop working, the control device controls the second driving device to stop working after receiving the second signal.

[0020] According to one embodiment of the present invention, the second signal circuit is a magnetic sensor circuit, and the magnetic induction sensor circuit sends a second signal to the control device when the magnetic induction sensor is close to a magnet.

[0021] According to one embodiment of the present invention, each time the magnetic induction sensor approaches the magnet, the magnetic induction sensor circuit sends a second signal to the control device.

[0022] A control method for a prosthesis production device, characterized in that the prosthesis production device includes the aforementioned control device, and the control method includes the steps of:

[0023] The power supply is electrically connected to the driving device through two parallel circuits, and the power supply can supply power to the driving device through the two circuits;

[0024] When disconnected,

[0025] First disconnect one of the circuits;

[0026] A signal is provided to the control device, and the control device controls another circuit to be disconnected after receiving the signal.

[0027] According to one embodiment of the present invention, a sensor sends a signal to the control device, and the control device controls another circuit to be disconnected after receiving the signal from the sensor.

[0028] According to one embodiment of the invention, the sensor provides a signal to the control device intermittently.

[0029] The control circuit and control method for the prosthesis fabrication device of the present invention utilizes two power supply paths for the drive device: one path is controlled by a switch, and the other is connected and disconnected by intermittent signals. If one path is powered off, the other path is disconnected only upon receiving a signal. This ensures that the support device supporting the embryo stops in a suitable state, facilitating embryo placement and processing operations. The device is easy to use, safe, and highly automated. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of the structure of the prosthesis production device in the present invention.

[0031] Figure 2 Schematic diagram of the internal structure of the working cabin of the prosthesis manufacturing device in the present invention.

[0032] Figure 3 It is a top view of the partial structure of the prosthesis manufacturing device in the present invention.

[0033] Figure 4 It is a structural schematic diagram of the supporting device in the present invention.

[0034] Figure 5 This is a control principle diagram of the prosthesis production device in the present invention.

[0035] Figure 6 Schematic diagram of the control circuit of the prosthesis production device in the present invention. DETAILED DESCRIPTION

[0036] like Figures 1 to 5 As shown, a prosthesis fabrication device 100 includes a working chamber 101, a bracket 110, a first rotary motor 120, a second rotary motor 130, and a support device 140. The working chamber 101 is provided with a storage space 102. The bracket 110, the first rotary motor 120, the second rotary motor 130, and the support device 140 are disposed in the storage space 102.

[0037] The working cabin 101 is provided with a door 103. Door 103 is openable and closable. It is UV-resistant. A second proximity switch 104 is provided within the working cabin 101. This second proximity switch 104 senses whether door 103 is closed and transmits different electrical signals depending on whether door 103 is closed. The electrical signal from the second proximity switch 104 can be used to determine whether door 103 is closed.

[0038] The work cabin 101 is equipped with support frames 111 and brackets 115. Two support frames 111 are spaced apart. These two support frames 111 are used to mount and support the brackets 115. The support frames 111 are constructed with a structure suitable for providing stable support. A first rotary motor 120 is mounted on one of the support frames 111. The first rotary motor 120 is provided with a first output shaft 121.

[0039] In the example shown in the figure, the bracket 115 is a hollow rectangular frame. A protrusion 116 is provided on the bracket 115. The protrusion 116 protrudes from the bracket 115. One end of the bracket 115 in the transverse direction is connected to one of the support frames 111 via a bearing, and the other end is connected to the first output shaft 121 of the first rotary motor 120. The first rotary motor 120 drives the bracket 115 to rotate. According to the technical solution of this embodiment, the first output shaft 121 of the first rotary motor 120 can be directly connected to the bracket 115 or connected through a reducer. The use of a reducer can reduce the output speed of the first rotary motor 120, so that the speed of the bracket 115 is controlled within the required range. The first rotary motor 120 drives the bracket 115 to rotate about the first axis. The first axis is the axis of the first output shaft 121.

[0040] A first proximity switch 117 is provided in the working chamber 101. The first proximity switch 117 is located below the protrusion 116. As the protrusion 116 rotates with the bracket 115, it intermittently approaches the first proximity switch 117. When the first proximity switch 117 senses the protrusion 116 approaching, it sends an electrical signal.

[0041] A second rotary motor 130 is mounted on the bracket 115. The second rotary motor 130 is provided with a second output shaft 131. The second rotary motor 130 is used to drive the supporting device 140 to rotate.

[0042] The support device 140 includes a support platform 141 and a clamp 142. The clamp 142 is mounted on the support platform 141 and is used to cooperate with the support platform 141 to clamp the embryo 200 for prosthesis production on the support platform 141. The support platform 141 is a flat plate, and the clamp 142 can be any structure that can cooperate with the support platform 141 to clamp the embryo. In the example shown, the clamp 142 has a handle 1421 and a holding end 1422. A mounting frame 151 is mounted on the support platform 141. The middle portion of the clamp 142 is rotatably mounted on the mounting frame 151 via a rotating shaft 152. A torsion spring (not shown) is mounted on the rotating shaft 152. The torsion spring maintains the clamp 142 in a position where it can cooperate with the support platform 141 to clamp the embryo 200. When the embryo 200 needs to be removed, the handle 1421 is pressed to release the clamp.

[0043] The second rotary motor 130 drives the support platform 140 to rotate. The second output shaft 131 of the second rotary motor 130 can be directly connected to the support platform 141 or connected through a speed reducer to ensure that the rotational speed of the support platform 141 falls within the required range. The second rotary motor 130 drives the support platform 140 to rotate about a second axis, which is the axis of the second output shaft 131. The plane containing the first axis and the plane containing the second axis intersect perpendicularly.

[0044] The storage space 102 of the working chamber 101 is also provided with an ultraviolet irradiation device 150 and a hot air device 160. The ultraviolet irradiation device 150 is used to irradiate ultraviolet rays toward the support device 140 to cure the embryo and / or coating made of a photosensitive resin. The hot air device 160 is used to blow hot air toward the support device 140 to thermally cure the embryo or coating made of a thermosetting material.

[0045] The prosthesis fabrication device 100 of the present invention also includes a control device 170. The control device 170 is in communication with the second proximity switch 104 and controls the operation of the ultraviolet irradiation device 150 and / or the hot air device 160. The control device 170 can receive an electrical signal from the second proximity switch 104 and, based on this signal, determine whether the hatch 103 is closed. When the hatch 103 is closed, it approaches the second proximity switch 104. When the second proximity switch 104 senses the hatch 103, it sends an electrical signal to the control device. When the hatch 103 is open, it moves away from the second proximity switch 104. The second proximity switch 104 does not sense the hatch 103 and does not send an electrical signal. When the control device 170 determines that the hatch 103 is not closed, it controls the ultraviolet irradiation device 150 and / or the hot air device 160 to stop operating to prevent injury or burns to the operator. The control device of the present invention can also be used to control the operation of the first rotary motor 120 and / or the second rotary motor 130.

[0046] A sensor bracket 145 is connected to the lower surface of the support platform 141. A Hall sensor 143 is connected to the sensor bracket 145. The Hall sensor 143 rotates synchronously with the support platform 141. The present invention also has a fixed magnet 144. The Hall sensor 143 passes by the magnet 144 during the rotation of the support platform 141. When the Hall sensor 143 approaches the magnet 144, it senses magnetism and sends an electrical signal to the control device 170. After receiving the electrical signal from the Hall sensor 143, the control device 170 controls the first rotary motor 120 to stop immediately or continue rotating at a selected angle before stopping, to ensure that the support platform 141 is in a suitable state when it stops, such as making the support platform 141 face up to facilitate the removal and placement of the embryo. In the example shown in the figure, the magnet 144 is located below the support platform. The Hall sensor 143 is connected to the support platform 141 via the sensor bracket 145. The upper surface of the support platform 141 is used to place the embryo. When the Hall sensor 143 and the magnet 144 are close to each other and generate an induction signal, the supporting platform 141 rotates 360 degrees again so that the embryo faces upward.

[0047] The prosthesis fabrication device 100 of the present invention is further provided with a potentiometer 108. Potentiometer 108 is connected to the circuit between the power supply 109 and the first rotary motor 120 and / or the second rotary motor 130. Potentiometer 108 is used to reduce the speed of the first rotary motor 120 and / or the second rotary motor 130 so that the Hall effect sensor 143 and the first proximity switch 117 can operate during movement.

[0048] When the prosthesis fabrication device 100 of the present invention is in operation, the hatch 103 is opened, and the prosthesis blank is secured to the support platform 141 using the clamp 142. A flowable coating is applied to the prosthesis blank. The hatch 103 is closed. The first rotary motor 120 and the second rotary motor 130 are activated. The first rotary motor 120 drives the support platform 141 to rotate about a first axis. The first axis is the axis of the first output shaft 121 of the first rotary motor 120. The second rotary motor 130 drives the bracket 115 to rotate about a second axis. The second axis is the axis of the second output shaft 131 of the second rotary motor 130. The plane containing the first axis and the plane containing the second axis intersect perpendicularly. The driving motion of the first and second rotary motors 120, 130, allows the prosthesis blank to move in various directions. The flowable coating allows the coating resin to flow in all directions on the surface of the blank during its rotation, spreading evenly across the entire surface. If the coating is made of photosensitive resin, the ultraviolet irradiation device 150 is used to irradiate ultraviolet rays to cure the coating. If the coating is made of thermosetting resin, the hot air device 160 is used to blow hot air toward the embryo to thermally cure the coating.

[0049] After the coating is cured, potentiometer 108 is used to reduce the rotational speeds of first rotary motor 120 and second rotary motor 130. A shutdown signal is transmitted to control device 170. Upon receiving the shutdown signal, control device 170 first shuts down first rotary motor 120 and then second rotary motor 130. When shutting down first rotary motor 120, control device 170, having received the shutdown signal, immediately shuts down first rotary motor 120 upon receiving a signal from first proximity switch 117, or allows it to rotate 360 degrees before shutting down immediately.

[0050] When shutting down the second rotary motor 130, the control device 170 immediately shuts down the first rotary motor 120 or controls it to rotate 360 degrees and then stop after receiving the shutdown signal and the signal from the Hall sensor 143 for the first time, so that the embryo placed on the support platform 141 faces upward for easy removal.

[0051] After the first and second rotary motors 120 and 130 stop, the door 103 is opened to remove the product. The second proximity switch 104 senses the door 103 opening and sends an electrical signal to the control device 170. This signal then turns off the ultraviolet irradiation device 150 or the hot air device 160. Repeat the above steps to apply a second or third coating layer.

[0052] The prosthesis making device in this embodiment is suitable for making prostheses of ears, hands, feet, arms, legs, breasts, eyes or noses.

[0053] like Figure 6 Figure 1 shows the control circuit of the prosthesis fabrication device according to the present invention. The power supply includes a power supply electrically connected to the first rotary motor 120 via a first circuit 181 and a second circuit 182 connected in parallel. Both the first circuit 181 and the second circuit 182 can supply power to the first rotary motor 120. The first circuit 181 is provided with a switch K1, and the second circuit 182 is provided with a first relay 172. The power supply is electrically connected to the second rotary motor 130 via a third circuit 183 and a fourth circuit 184 connected in parallel. Both the third circuit 183 and the fourth circuit 184 can supply power to the second rotary motor 130. The third circuit 183 is provided with a switch K2, and the fourth circuit 184 is provided with a second relay 173. A control device 170 controls the operation of the first relay 172 and the second relay 173. Potentiometers 171 are provided in the circuits connecting the power supply to the first and second rotary motors 120 and 130. The potentiometer 171 is used to adjust the magnitude of the power supplied to the first rotary motor 120 and the second rotary motor 130 , so as to control the rotation speeds of the first rotary motor 120 and the second rotary motor 130 .

[0054] When the prosthesis fabrication device needs to stop operating, potentiometer 171 is operated to reduce the speed of first rotary motor 120 and second rotary motor 130. Switch K1 is opened to disconnect the first circuit. When first proximity switch 117 senses bump 116, it sends an electrical signal to control device 170. Upon receiving the electrical signal from first proximity switch 117, control device 170 controls first relay 172 to disconnect second circuit 182. At this point, the circuit between the power supply and first rotary motor 120 is completely disconnected, and first rotary motor 120 stops operating. According to the present invention, when first proximity switch 117 senses bump 116, bracket 115 is in an upright position.

[0055] Switch K2 is opened, disconnecting the third circuit. When Hall sensor 143 senses the magnetism of magnet 144, it transmits an electrical signal to control device 170. Upon receiving the signal from Hall sensor 143, control device 170 controls second relay 173 to disconnect fourth circuit 184. At this point, the power supply is completely disconnected from the circuit of second rotary motor 130, and second rotary motor 130 ceases operation. According to the present invention, when Hall sensor 143 senses the magnetism of magnet 144, support platform 141 is in an upright position, with the side on which embryo 200 is placed facing upward.

[0056] A control method for a prosthesis manufacturing device comprises the following steps:

[0057] The power supply is electrically connected to the driving device through two parallel circuits, and the power supply can supply power to the driving device through the two circuits;

[0058] When disconnected,

[0059] First disconnect one of the circuits;

[0060] A signal is provided to the control device, and the control device controls another circuit to be disconnected after receiving the signal.

[0061] A signal is sent to the control device through the sensor, and the control device controls another circuit to be disconnected after receiving the signal from the sensor.

[0062] The sensor intermittently provides a signal to the control device.

[0063] In the above embodiments, the first rotary motor 120 is one embodiment of the first drive device and can be replaced by other available drive devices, such as a linear motor, a rotary cylinder, or a linear cylinder, depending on the desired motion direction of the embryo. The second rotary motor 130 is one embodiment of the second drive device and can be replaced by other available drive devices, such as a linear motor, a rotary cylinder, or a linear cylinder, depending on the desired motion direction of the embryo.

[0064] In the aforementioned embodiment, the first drive device rotates the prosthetic body, while the second drive device rotates the prosthetic body. As an alternative, rotation of the prosthetic body is not the only option; one or both drive devices can be used to drive the prosthetic body in a linear motion, an arc-shaped swing, or other motion paths. The distribution of the coating resin on the prosthetic body can be improved by ensuring that the paths of motion of the prosthetic body driven by the two drive devices do not overlap. The first proximity switch 117 is an embodiment of the first position sensing device and also an embodiment of the first sensor. It can also be replaced by other devices capable of sensing position and status. The Hall sensor 143 and magnet 144 are an embodiment of the second position sensing device and also an embodiment of the second sensor. They can also be replaced by other devices capable of determining the position or status of the support platform 141. The Hall sensor 143 is an embodiment of a magnetic induction switch. It can also be replaced by other devices capable of sensing magnetism and transmitting electrical signals based on the sensed magnetism. The second proximity switch 104 is an embodiment of the third position sensing device. It can also be replaced by other devices capable of sensing position.

[0065] The support frame 141 and the frame 145 are used to support the embryo, and the above structure is one embodiment of the support device 140. Its function is to support the embryo and enable the embryo to move, so its specific structure can also adopt other feasible structures.

[0066] In the above embodiment, the control device controls the first relay to control the switching of one of the circuits between the power supply and the first rotating motor. However, other technical solutions for controlling the switching of the circuits can also be used. The control device controls the second relay to control the switching of one of the circuits between the power supply and the second rotating motor. However, other technical solutions for controlling the switching of the circuits can also be used.

[0067] In the above embodiment, the plane where the first axis lies intersects the plane where the second plane lies perpendicularly. According to the technical solution of the present invention, the purpose of the present invention can also be achieved if the plane where the first axis lies intersects the plane where the second plane lies non-perpendicularly.

[0068] The potentiometer is one embodiment of the speed reduction device, and it can also be replaced by other devices that can reduce the movement speed output by the first driving device and / or the second driving device.

[0069] The prosthesis manufacturing device of the present invention can utilize a first drive device and a second drive device to drive the movement of the embryo for manufacturing the prosthesis. The first drive device and the second drive device drive the movement trajectories of the embryo for manufacturing the prosthesis to be different. Therefore, after the coating is applied to the embryo, the coating can be spread all over the surface of the embryo and evenly applied during the movement of the embryo in various directions. The ultraviolet irradiation device can be used to emit ultraviolet rays toward the embryo to ultraviolet-cure the photosensitive resin coated on the embryo. The present invention is provided with an ultraviolet-proof cabin door to prevent ultraviolet rays from injuring the operator. The present invention is provided with a first sensing device to sense the open and closed status of the cabin door, and to turn off the ultraviolet irradiation device when the cabin door is open, which can further prevent ultraviolet rays from injuring the operator. The embryo is fixed with a support platform and a clamp, which has a simple structure and is easy to manufacture. A hot air device is provided, which can be used to heat-cure the prosthesis, so that the present invention can be applied to prostheses made of heat-curing resins, and has a wider range of applications. The present invention has a simple structure, a fast prosthesis manufacturing speed, and patients can receive it immediately, which can reduce the number of trips for patients from other places. The present invention provides a deceleration device. When it is necessary to stop working, the movement speed of the support platform and / or the bracket can be reduced first, which facilitates the operation of the first position sensing device and the second position sensing device and reduces the requirements for the first position sensing device and the second position sensing device.

[0070] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements or improvements within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. A control circuit for a prosthesis production device, characterized in that: include: A power supply, the power supply being used to supply power to the driving device, the power supply being electrically connected to the driving device via two parallel circuits; A switch is provided on one of the circuits; a control device that controls connection and disconnection of another circuit; A signal circuit, the signal circuit is used to send a signal to the control device, and when the control device receives the signal from the signal circuit, it controls to disconnect the other circuit; when the control device does not receive the signal from the signal circuit, it connects the other circuit so that the power supply supplies power to the driving device; The driving device includes a first driving device and a second driving device, the power supply is electrically connected to the first driving device through a first circuit and a second circuit connected in parallel; a first switch is provided on the first circuit; The signal circuit includes a first signal circuit, the first signal circuit intermittently sends a first signal to the control device, the control device controls the second circuit to be disconnected when receiving the first signal, and controls the second circuit to be connected when the control device fails to receive the first signal; The power supply is electrically connected to the second driving device via a third circuit and a fourth circuit connected in parallel; a second switch is provided on the third circuit; The signal circuit includes a second signal circuit, which intermittently sends a second signal to the control device. When the control device receives the second signal, it controls the fourth circuit to be disconnected. When the control device does not receive the second signal, it controls the fourth circuit to be connected.

2. The control circuit of the prosthesis manufacturing device according to claim 1, characterized in that: The signal circuit is a sensor circuit.

3. The control circuit of the prosthesis manufacturing device according to claim 2, characterized in that: The sensor circuit is a position sensor circuit.

4. The control circuit of the prosthesis manufacturing device according to claim 1, characterized in that: It also includes a current regulating device, which is used to adjust the current supplied by the power supply to the driving device.

5. The control circuit of the prosthesis manufacturing device according to claim 1, wherein: After the control device controls the first driving device to stop working, the control device controls the second driving device to stop working after receiving the second signal.

6. The control circuit of the prosthesis manufacturing device according to claim 1, characterized in that: The second signal circuit is a magnetic sensor circuit, and the magnetic induction sensor circuit sends a second signal to the control device when the magnetic induction sensor approaches a magnet.

7. The control circuit of the prosthesis fabrication device according to claim 6, characterized in that: Each time the magnetic induction sensor approaches the magnet, the magnetic induction sensor circuit sends a second signal to the control device.

8. A control method for a prosthesis manufacturing device, characterized in that: The prosthesis manufacturing device comprises the control circuit according to any one of claims 1 to 7, and the control method comprises the steps of: The power supply is electrically connected to the driving device through two parallel circuits, and the power supply can supply power to the driving device through the two circuits; When disconnected, First disconnect one of the circuits; A signal is provided to the control device, and the control device controls another circuit to be disconnected after receiving the signal.

9. The control method for a prosthesis manufacturing device according to claim 8, wherein: A signal is sent to the control device through the sensor, and the control device controls another circuit to be disconnected after receiving the signal from the sensor.

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