CN107561848B - Automatic positioning circuit for amusement slide projector - Google Patents
Automatic positioning circuit for amusement slide projector Download PDFInfo
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- CN107561848B CN107561848B CN201710672021.1A CN201710672021A CN107561848B CN 107561848 B CN107561848 B CN 107561848B CN 201710672021 A CN201710672021 A CN 201710672021A CN 107561848 B CN107561848 B CN 107561848B
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Abstract
The invention discloses an automatic positioning circuit of an entertainment slide projector, through time coordination, a capacitor C is charged and slowly discharged, and an electromagnet Y is powered off while a motor M is controlled to be electrified and rotated; when the motor M is controlled to be powered off, the electromagnet Y can be electrified in a delayed mode for 3 seconds, and when the motor M is powered off, the motor shaft can continue to rotate for 3 seconds and then be electrified, so that the motor shaft is prevented from continuing to rotate, rapidly stopping and positioning, and a slide picture can be randomly selected from multiple pictures.
Description
Technical Field
The invention relates to a positioning circuit, in particular to an automatic positioning system circuit of an entertainment slide projector.
Background
The slide projector is generally composed of four parts, namely an optical part, a main body, a mechanical transmission part and an electric control part. The electric control part mainly transmits the effect of film changing or focusing of an operator to the mechanical transmission part in the form of electric signals, and the functions of the electric control part are different according to different types of slide projectors, and generally have the functions of wireless remote control, wired remote control, timing control, voice control, signal control and the like.
Disclosure of Invention
The invention provides an entertainment slide projector with an automatic positioning system function, which is suitable for entertainment places and can randomly extract one picture from a plurality of groups of pictures and put the picture on a display screen. The invention has the greatest characteristic of automatic positioning function, a plurality of groups of pictures to be displayed are fixed on a circular film disc, the pictures are randomly selected by means of the rotation of the film disc, when the film disc stops rotating, the randomly selected pictures can be accurately stopped under a lens, and perfect pictures can be displayed on a display screen.
The technical scheme adopted by the invention for realizing the purpose is as follows:
an automatic positioning circuit of an entertainment slide projector comprises a direct current 12V battery B, a switch K1, a switch K2, a direct current 12V light source E, a 12V relay J1, a 12V relay J2, a diode D1, a diode D2, a capacitor C, a triode G, a resistor R1, a resistor R2, a motor M and an electromagnet Y, wherein the positive pole of the battery B is connected with one end of the light source E through the last path of the switch K1, the other path of the battery B is connected with one end of a relay J1, the other end of the light source E is connected with the negative pole of the battery B, the other end of the relay J1 is connected with one end of a switch K2, the other end of the switch K2 is connected with the negative pole of the battery B, the normally closed contact of the relay J1 is connected with the negative pole of a diode D1, the positive pole of a diode D1 is connected with the positive pole of the capacitor C, the negative pole of the battery B is connected with the negative pole, the normally open contact of a, resistance R2 one end is connected with diode D1 anodal, and the other end is connected with the triode G base, and triode G collecting electrode is connected with relay J2 one end, and the triode G projecting pole is connected with battery B negative pole, and the relay J2 other end is connected with battery B positive pole, and relay J2 normally open contact is connected with electro-magnet Y one end, and electro-magnet Y other end battery B negative pole is connected, diode D2 negative pole is connected with battery B positive pole, and diode D2 positive pole is connected with triode G collecting electrode.
Preferably, the switch K1 is a power main switch, and the switch K2 is a touch switch. The diode D1 is a discharge diode of the capacitor C, and the diode D2 is a freewheeling diode of the relay J2. The resistors R1 and R2 are base power supply resistors of the triode G. And the capacitor C is a charging capacitor supplied by the base electrode of the triode G.
The automatic positioning system comprises a motor, wherein the motor sequentially penetrates through the centers of a positioning disc and a film disc through a motor shaft, an electromagnet is arranged on one side of the positioning disc, a light source assembly is arranged on the other side of the positioning disc, the light source assembly just faces an imaging convex lens arranged between the film disc and a display screen of the slide projector through the film disc, a slide picture used for playing is arranged on the film disc, and a magnetic pole mutually attracted with the electromagnet is arranged on the positioning disc. The motor is controlled to be electrified, and meanwhile, the power supply of the electromagnet is cut off, so that the motor shaft starts to rotate, and the positioning disc and the film disc also rotate along with the motor shaft; can delay three seconds after the motor outage and supply power for the electro-magnet, the electro-magnet circular telegram back, because the electro-magnet has the actuation effect to the magnetic pole of positioning disk, can prevent the continuation rotation of positioning disk, let the positioning disk stop rapidly, the slide picture that will be in on the film disc of light source subassembly side simultaneously just in time arranges the centre of light source subassembly and formation of image convex lens in, the light that this slide picture sent under the light source subassembly shines, through formation of image convex lens inverting phase, on the slide display screen, demonstrate the clear image that enlargies in opposite phases.
Furthermore, the film disc is composed of a disc, the center of the disc is sleeved on the motor shaft, and slide pictures are uniformly distributed on the disc at equal intervals along the circumference.
Furthermore, the positioning disc is composed of a disc, the center of the disc is sleeved on the motor shaft, and magnetic poles which are mutually attracted with the electromagnet are uniformly distributed on the outer wall of the disc adjacent to the electromagnet along the circumference at equal intervals. The positioning is carried out by attracting the magnetic pole on the positioning disk and the electromagnet on one side of the positioning disk.
Preferably, the angles and the numbers of the magnetic poles are consistent with those of the slide pictures, and when the magnetic poles are attracted by the electromagnets, the slide pictures at the side of the light source component of the film disc are just positioned at the centers of the light source component and the imaging convex lens, and the slide pictures at the center of the light source component and the imaging convex lens are just positioned at the centers of the light source component and the imaging convex lens.
Furthermore, the light source assembly comprises a light source shell, a radiator, a reflection cup and a light-gathering convex lens are sequentially arranged from the motor side to the film disc side in the light source shell, and a light source is arranged in the center of the bottom of the reflection cup. The invention supplies power to emit light through the light source, reflects light through the reflecting cup, and then condenses light through the condensing convex lens to just aim at the lantern slide picture on the film disc at the side of the light source component, and the light emitted by the lantern slide picture is reversed through the imaging convex lens to present a reversed and amplified clear image on the lantern slide display screen.
The motor is controlled to be electrified, and meanwhile, the power supply of the electromagnet is cut off, so that the motor shaft starts to rotate, and the positioning disc and the film disc also rotate along with the motor shaft; can delay three seconds after the motor outage and supply power for the electro-magnet, the electro-magnet circular telegram back, because the electro-magnet has the actuation effect to the magnetic pole of positioning disk, can prevent the continuation rotation of positioning disk, let the positioning disk stop rapidly, can carry out the actuation location to one of them magnetic pole of magnetic pole at last, guarantee that the slide picture that is in the light source subassembly side on the film plate arranges the centre of light source subassembly and formation of image convex lens in just, the light that sends under the light source subassembly is shone to this slide picture, through formation of image convex lens inverting phase, on the slide display screen, demonstrate the clear image that enlargies in phase reversal once more. The invention is suitable for entertainment in entertainment places, realizes the random selection of one picture of the slide projector, and displays the picture on the display screen of the slide projector in a positioning way.
Drawings
The invention is further described with reference to the accompanying drawings, in which:
fig. 1 is a schematic view of the overall structure of the mechanical part.
FIG. 2 is a schematic view of a film reel.
Fig. 3 is a schematic view of the positioning plate structure.
Fig. 4 is a schematic diagram of the composite structure of the film tray and the positioning tray.
Fig. 5 is a schematic circuit diagram of the present invention.
Description of reference numerals: 1-slide projector display screen, 2-film disc, 3-electromagnet, 4-positioning disc, 5-motor shaft, 6-motor, 7-imaging convex lens, 8-condensing convex lens, 9-light source shell, 10-reflecting cup, 11-light source, 12-radiator, 13-slide picture and 14-magnetic pole.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in figure 5, an automatic positioning circuit of entertainment slide projector comprises a direct current 12V battery B, a switch K1, a switch K2, a direct current 12V light source E, a 12V relay J1, a 12V relay J2, a diode D1, a diode D2, a capacitor C, a triode G, a resistor R1, a resistor R2, a motor M and an electromagnet Y, wherein the positive pole of the battery B is connected with one end of the light source E through one path of the switch K1, the other path of the battery B is connected with one end of the relay J1, the other end of the light source E is connected with the negative pole of the battery B, the other end of the relay J1 is connected with one end of the switch K2, the other end of the switch K2 is connected with the negative pole of the battery B, the normally closed contact of the relay J1 is connected with the negative pole of the diode D1, the positive pole of the diode D1 is connected with the positive pole of the capacitor C, the negative pole of the battery B, resistance R1 connects in parallel at diode D1 both ends, and resistance R2 one end is connected with diode D1 positive pole, and the other end is connected with triode G base, and triode G collecting electrode is connected with relay J2 one end, and the triode G projecting pole is connected with battery B negative pole, and the relay J2 other end is connected with battery B positive pole, and relay J2 normally open contact is connected with electro-magnet Y one end, and electro-magnet Y other end battery B negative pole is connected, diode D2 negative pole is connected with battery B positive pole, and diode D2 positive pole is connected with triode G collecting electrode.
Preferably, the switch K1 is a power main switch, and the switch K2 is a touch switch. The diode D1 is a discharge diode of the capacitor C, and the diode D2 is a freewheeling diode of the relay J2. The resistors R1 and R2 are base power supply resistors of the triode G. And the capacitor C is a charging capacitor supplied by the base electrode of the triode G.
The light source E in fig. 5 corresponds to the light source 11 in fig. 1, the motor M corresponds to the motor 6 in fig. 1, and the electromagnet Y corresponds to the electromagnet 3 in fig. 1.
As shown in fig. 1 to 4, an automatic positioning system of an entertainment slide projector comprising the circuit comprises a motor 6, wherein a motor shaft 5 on the motor 6 sequentially penetrates through the centers of a positioning disk 4 and a film disk 2, an electromagnet 3 is arranged on one side of the positioning disk 4, a light source assembly is arranged on the other side of the positioning disk, the light source assembly just faces an imaging convex lens 7 arranged between the film disk 2 and a slide projector display screen 1 through the film disk 2, a slide picture 13 for playing is arranged on the film disk 2, and a magnetic pole 14 mutually attracted with the electromagnet 3 is arranged on the positioning disk 4. The invention controls the motor 6 to be electrified, and simultaneously cuts off the power supply of the electromagnet 3, so that the motor shaft 5 starts to rotate, and the positioning disc 4 and the film disc 2 also rotate along with the rotation; can delay three seconds after 6 outage at the motor and supply power for electro- magnet 3, 3 circular telegrams backs of electro-magnet, because electro-magnet 3 has the actuation effect to the magnetic pole of positioning disk 4, can prevent that positioning disk 4 from continuing to rotate, let positioning disk 4 stop rapidly, the slide picture 13 on the film disc 4 that will be in the light source subassembly side simultaneously just in time is placed in the middle of light source subassembly and formation of image convex lens 7 in, the light that this slide picture 13 sent under the light source subassembly shines, through formation of image convex lens 4 looks inverting, on slide display screen 1, demonstrate the clear image that enlargies in opposite phase once more.
As shown in fig. 2, the film disc 2 is composed of a disc, the center of the disc is sleeved on the motor shaft 5, and slide pictures 13 are uniformly distributed on the disc along the circumference at equal intervals. Eight slide pictures 13 are uniformly distributed on the film disc 2.
As shown in fig. 3, the positioning plate 4 is composed of a circular plate, the center of the circular plate is sleeved on the motor shaft 5, and magnetic poles 14 which are mutually attracted with the electromagnet are uniformly distributed on the outer wall of the circular plate 4 adjacent to the electromagnet 3 along the circumference at equal intervals. Eight magnetic poles 14 are arranged on the positioning plate 4. The invention carries out positioning by attracting the magnetic pole 14 on the positioning disk 4 and the electromagnet 3 at one side of the positioning disk.
As shown in fig. 4, the magnetic poles 14 have the same angle and number as the slide pictures 13, and when the magnetic poles 14 are attracted by the electromagnet 3, the slide pictures 13 on the light source assembly side of the film reel 2 are just in the center of the light source assembly and the convex imaging lens 7.
As shown in fig. 1, the light source assembly includes a light source housing 9, a heat sink 12, a reflective cup 10, and a light-gathering convex lens 8 are sequentially disposed from the motor 6 side to the film reel 2 side in the light source housing 9, and a light source 11 is disposed in the center of the bottom of the reflective cup 10. The invention supplies power to emit light through the light source 11, reflects light through the reflecting cup 10, then condenses light through the condensing convex lens 8, just aims at the lantern slide picture 13 on the film disc 2, which is opposite to the imaging convex lens 7, and the light emitted by the lantern slide picture 13 is reversed through the imaging convex lens 7, so that a reversed and amplified clear image is presented on the lantern slide display screen 1.
As shown in fig. 1 to 5, the circuit of the present invention operates as follows:
when the circuit works, the switch K1 is closed, the voltage at two ends of the switch B passes through the switch K1, one path of the voltage is supplied to the light source E to light the light source E, the other path of the voltage passes through the normally closed contact of the J1 to start charging the capacitor C through the resistor, when the voltage on the C reaches a certain value, the voltage on the C is supplied to the base voltage of the triode G through the resistor R2 to start the triode G to be conducted, and the triode G is conducted to be attracted by the subsequent electric appliance J2. The battery B supplies the working voltage to the electromagnet Y through a relay J2; the charging time of the capacitor C is 3 seconds, namely the time from closing the switch K1 to closing the J2 suction is 3 seconds, the electromagnet Y is used for positioning the positioning disc 4 and the film disc 2 after supplying power, and the slide picture at the light source assembly side in the film disc 2 is ensured to be just arranged in the middle of the light source assembly and the imaging convex lens 7. The light emitted by the light source 11 after power supply is reflected by the reflecting cup 10 and then condensed by the condensing convex lens 8 just aims at the rightmost slide picture on the film disc 2, and the light emitted by the slide picture is reversed by the imaging convex lens 7 to present a reversed and amplified clear image on the slide display screen 1.
When the slide pictures of the entertainment slide projector need to be changed, the switch K2 is pressed, the relay J1 starts to be electrified and closed, and the normally closed contact is disconnected and the normally open contact is closed. At the moment, the voltage at the two ends of the C is rapidly discharged to the relay J2 and the electromagnet Y through the D1, the voltage at the two ends of the C is also discharged to the minimum while the relay J1 is attracted, meanwhile, the relay J2 is disconnected, and the electromagnet Y is powered off. After the normally open contact of the relay J1 is closed, the motor M starts to be electrified, the motor shaft 5 starts to rotate, and the positioning disc 4 and the film disc 2 also rotate along with the rotation. The energization time of the motor M is grasped by the operator, and generally the energization time for operating the motor M is within several seconds. After the switch K2 is released, the relay J1 is powered off, the normally closed contact is closed, the normally open contact is opened, and the motor M is powered off. The voltage at the two ends of the battery B charges the capacitor C again through the normally closed contacts of K1 and J1 and the resistor R1, the electric appliance J2 is attracted after 3 seconds, and the electromagnet Y is electrified. After electro-magnet Y circular telegram, because electro-magnet Y has the actuation effect to eight magnetic poles of positioning disk 4, can prevent the continuation rotation of positioning disk 4, let positioning disk 4 stop rapidly, can carry out the actuation location to one of them magnetic pole of eight magnetic poles at last, guarantee that film plate 2 corresponds the slide picture on the rightmost, just in time arrange the middle of light source subassembly and formation of image convex lens 7 in, the light that this slide picture sent under the light source subassembly shines, through formation of image convex lens 7 antiphase, on slide display screen 1, demonstrate the clear image that enlargies in opposite phases once more.
The circuit of the invention is matched with time, the capacitor C is charged slowly and discharged quickly, and the electromagnet Y must be in a power-off state while the motor M is controlled to be electrified and rotated. When the motor M is controlled to be powered off, the electromagnet Y is electrified in a delayed mode for 3 seconds. When the motor M is powered off, the motor shaft can continue to rotate due to the inertia, and the electromagnet Y is electrified after the motor shaft continues to rotate for 3 seconds, so that the motor shaft is prevented from continuing to rotate, and the motor shaft is rapidly stopped and positioned. Thus, the habit that people randomly select one picture from a plurality of pictures is met.
In conclusion, one picture can be randomly selected from a plurality of pictures of the slide projector, and the pictures can be positioned and displayed on the display screen of the slide projector.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims. It is to be understood that the above description is intended to be illustrative, and not restrictive. For example, the above-described embodiments (and/or aspects thereof) may be used in combination with each other. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Many other embodiments and modifications within the scope and spirit of the claims will be apparent to those of skill in the art from reading the foregoing description.
Claims (5)
1. An automatic positioning circuit of an entertainment slide projector is characterized by comprising a direct-current 12V battery B, a switch K1, a switch K2, a direct-current 12V light source E, a 12V relay J1, a 12V relay J2, a diode D1, a diode D2, a capacitor C, a triode G, a resistor R1, a resistor R2, a motor M and an electromagnet Y, wherein the positive pole of the battery B is connected with one end of the light source E through one path of the switch K1, the other path of the battery B is connected with one end of the relay J1, the other end of the light source E is connected with the negative pole of the battery B, the other end of the relay J1 is connected with one end of the switch K2, the other end of the switch K2 is connected with the negative pole of the battery B, the normally closed contact of the relay J1 is connected with the negative pole of the diode D1, the positive pole of the diode D1 is connected with the positive pole of the capacitor C, the negative pole of the battery B is, resistance R1 connects in parallel at diode D1 both ends, and resistance R2 one end is connected with diode D1 positive pole, and the other end is connected with triode G base, and triode G collecting electrode is connected with relay J2 one end, and the triode G projecting pole is connected with battery B negative pole, and the relay J2 other end is connected with battery B positive pole, and relay J2 normally open contact is connected with electro-magnet Y one end, and electro-magnet Y other end battery B negative pole is connected, diode D2 negative pole is connected with battery B positive pole, and diode D2 positive pole is connected with triode G collecting electrode.
2. The amusement slide machine automatic positioning circuit according to claim 1, characterized in that said switch K1 is a mains switch and switch K2 is a tactile switch.
3. The amusement slide projector automatic positioning circuit according to claim 1, characterized in that said diode D1 is a discharge diode of the capacitor C and the diode D2 is a freewheeling diode of the relay J2.
4. The amusement slide machine automatic positioning circuit according to claim 1, characterized in that said resistors R1, R2 are base supply resistors of triode G.
5. The amusement slide projector automatic positioning circuit according to claim 1, characterized in that said capacitor C is a base-powered charging capacitor of a triode G.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710672021.1A CN107561848B (en) | 2017-08-08 | 2017-08-08 | Automatic positioning circuit for amusement slide projector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710672021.1A CN107561848B (en) | 2017-08-08 | 2017-08-08 | Automatic positioning circuit for amusement slide projector |
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| CN107561848A CN107561848A (en) | 2018-01-09 |
| CN107561848B true CN107561848B (en) | 2020-11-27 |
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| CN201710672021.1A Active CN107561848B (en) | 2017-08-08 | 2017-08-08 | Automatic positioning circuit for amusement slide projector |
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| CN202200847U (en) * | 2011-08-19 | 2012-04-25 | 韦广用 | Automatic control device capable of preventing from mistakenly stepping on accelerator of automobile |
| CN204560637U (en) * | 2015-04-19 | 2015-08-19 | 陈洵敬 | A kind of fish pond bait automatic release device circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7839105B2 (en) * | 2006-09-26 | 2010-11-23 | Tai-Her Yang | Circuit installation capable of full voltage activation, division voltage operation and delayed breaking |
| CN201177759Y (en) * | 2008-04-18 | 2009-01-07 | 联伟汽车零部件(重庆)有限公司 | Positioned detection apparatus for automatic welding clamp |
| CN102797893A (en) * | 2012-08-16 | 2012-11-28 | 天津开利达控制技术开发有限公司 | Electric actuator with photoelectric positioning mechanism |
| CN105278368A (en) * | 2015-08-25 | 2016-01-27 | 芜湖市恒峰科技有限公司 | Culturing farm automatic feeding control circuit |
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2017
- 2017-08-08 CN CN201710672021.1A patent/CN107561848B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202200847U (en) * | 2011-08-19 | 2012-04-25 | 韦广用 | Automatic control device capable of preventing from mistakenly stepping on accelerator of automobile |
| CN204560637U (en) * | 2015-04-19 | 2015-08-19 | 陈洵敬 | A kind of fish pond bait automatic release device circuit |
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Effective date of registration: 20201111 Address after: 314500 Room 101, 131 well-being Road, Wutong street, Tongxiang, Jiaxing, Zhejiang Applicant after: Jiaxing Shangkun Technology Co., Ltd Address before: 048100, Shanxi City, Jincheng province Yangcheng County town run Village Applicant before: Wei Binpeng |
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