CN116605532A - Structure for detecting feeding and discharging frames of SMT (surface mounted technology) material trays by using photoelectric sensor - Google Patents

Structure for detecting feeding and discharging frames of SMT (surface mounted technology) material trays by using photoelectric sensor Download PDF

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Publication number
CN116605532A
CN116605532A CN202210121225.7A CN202210121225A CN116605532A CN 116605532 A CN116605532 A CN 116605532A CN 202210121225 A CN202210121225 A CN 202210121225A CN 116605532 A CN116605532 A CN 116605532A
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CN
China
Prior art keywords
photoelectric sensor
rotating
tray
shielding
smt
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210121225.7A
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Chinese (zh)
Inventor
黄正文
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202210121225.7A priority Critical patent/CN116605532A/en
Publication of CN116605532A publication Critical patent/CN116605532A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D61/00—External frames or supports adapted to be assembled around, or applied to, articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
    • B65G2203/04—Detection means
    • B65G2203/042—Sensors
    • B65G2203/044—Optical
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

The invention belongs to the technical field of electronic material storage devices, and in particular relates to a structure for detecting an SMT material tray feeding and discharging frame by using a photoelectric sensor, which comprises the following steps: the device comprises a support piece, a circuit board, n rotating pieces which are arranged on the support piece and can rotate relative to the support piece, n photoelectric sensors which are connected with the circuit board, and shielding parts which are arranged on each rotating piece; the shielding parts are respectively corresponding to the photoelectric sensors and are used for shielding the photoelectric sensors at the corresponding positions; the photoelectric sensor is positioned at the outer side of the movement path of the shielding part corresponding to the photoelectric sensor; n is an integer and n is not less than 2. In the prior art, the material tray is matched with the photoelectric sensor, and the material tray is not manufactured by adopting the same standard, so that the current intelligent material rack is difficult to accurately judge the material tray taking and placing condition of a certain material tray clamping position; compared with similar products in the prior art, the intelligent material rack has the effects of being convenient for the intelligent material rack to accurately judge the material tray taking and placing condition of a certain material tray clamping position and avoiding loss caused by misjudgment of the intelligent material rack.

Description

Structure for detecting feeding and discharging frames of SMT (surface mounted technology) material trays by using photoelectric sensor
Technical Field
The invention relates to the technical field of electronic material storage devices, in particular to a structure for detecting a feeding and discharging frame of a material tray for storing SMT materials by adopting a photoelectric sensor.
Background
The SMT electronics factory produces a circuit board that requires thousands of parts to be assembled together in a chip-on-board manner. Because the part variety is many, and material access management is very expended the manpower, consequently deposit SMT electronic materials's intelligent work or material rest popularization. In the early stage, a bar code is attached to each storage position, when a user puts materials in storage, the bar codes on the material trays are firstly brushed, and then the bar codes on the storage positions are brushed, so that a computer for managing the material racks memorizes the storage positions of the material trays, and when the materials are taken, the computer can control a lamp on the storage positions to be taken to guide the user to take the materials. However, this approach does not alert the misplaced storage, but the user has to brush the bar code twice, and is still missing in use. Therefore, it is important to be able to automatically detect which storage location is entered after the user swipes the bar code on the tray.
The general sensing mode is mostly finished by using a photoelectric sensor, so that whether the placed tray blocks the light of the photoelectric sensor to detect the state of placing or taking out the tray, but when the tray is made of transparent or semitransparent materials, as the light is not completely blocked, whether the tray can not be accurately judged by receiving the light, the received light flux is required to be measured, and the tray-free or transparent tray is judged by statistics or even an AI algorithm; especially, for SMT material suppliers, the problem of photoelectric sensors is not needed to be considered, so that the color and the material of the material tray are not standardized by industry; further, most of the current SMT suppliers use semi-transparent sheet plastics to make trays based on cost considerations. For the practical use condition of an SMT electronic factory, electronic component errors will cause scrapping of the whole batch of circuit boards, inaccurate storage records will cause the intelligent material rack to lose practical value, so that misjudgment of the intelligent material rack will cause serious consequences and bring about great economic loss.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a structure for detecting an SMT material tray feeding and discharging frame by using a photoelectric sensor, which aims to solve the problem that the existing intelligent material frame is difficult to accurately judge the material tray taking and placing condition.
In order to achieve the above purpose, the invention adopts the following technical scheme: a structure for detecting an SMT tray feed and discharge rack using a photoelectric sensor, comprising: the device comprises a support piece, a circuit board, n rotating pieces which are arranged on the support piece and can rotate relative to the support piece, n photoelectric sensors which are connected with the circuit board, and shielding parts which are arranged on each rotating piece; the n shielding parts are respectively corresponding to the n photoelectric sensors and are used for shielding the photoelectric sensors at the corresponding positions; the photoelectric sensor is positioned at the outer side of the movement path of the shielding part corresponding to the photoelectric sensor; n is an integer and n is not less than 2.
Preferably, the support is connected with a circuit board; the photoelectric sensor is arranged on one surface of the circuit board.
Preferably, the photoelectric sensor comprises a receiver and a transmitter, and n through holes for respectively accommodating n shielding parts are arranged in the circuit board; the receiver and the transmitter of each photoelectric sensor are respectively positioned at two sides of one perforation.
Preferably, the rotating piece comprises a bearing bar, an adapter plate with one end fixedly connected with one end of the bearing bar, and a rotating shaft with two ends respectively movably connected with the top of the supporting piece; one end of the shielding part is connected with the other end of the adapter plate.
Preferably, a transverse strip perpendicular to the carrying strip is arranged at the other end of the carrying strip; forming a first corner at the connection position of the receiving strip and the adapter plate, and forming a second corner at the connection position of the adapter plate and the shielding part; the rotating shaft is arranged on the outer side of the first corner and is perpendicular to the bearing strip and the adapter plate.
Preferably, the device further comprises a balancing weight which is arranged on the outer side of the second corner and is perpendicular to the shielding part and the adapter plate.
Preferably, the transverse strip, the bearing strip, the adapter plate and the shielding part are integrally formed; the shielding part is in a flat plate shape, and dark color coatings are arranged on two surfaces of the shielding part; the rotating piece and the shielding part are made of light shielding materials.
Preferably, the supporting piece comprises a supporting base, n rotating brackets arranged on the supporting base and transverse connecting strips connected with the tops of the n rotating brackets; each rotating bracket comprises two mutually parallel supporting vertical plates, and the top of each supporting vertical plate is provided with a notch; the n rotating brackets are respectively connected with the n rotating pieces, and two ends of each rotating shaft are respectively placed in two notches of one rotating bracket.
Preferably, the supporting base, the rotating bracket and the transverse connecting strip are integrally formed; the support piece is made of shading materials.
Preferably, the side surface of the top of each supporting vertical plate is provided with a hook which is integrally formed with the supporting vertical plates, the top of the circuit board is provided with 2n hanging notches, and the hooks are hung on the top of the circuit board through the corresponding hanging notches; the hook is positioned at the front side of the notch.
The beneficial technical effects are as follows: by adopting the structure for detecting the feeding and discharging frames of the SMT material tray, a shielding part is arranged on the rotating piece and used for exciting the photoelectric sensor; the material rack comprises a plurality of material tray clamping positions, and each material tray clamping position corresponds to one rotating piece; when a certain tray is placed in a clamping position, the tray is contacted with the rotating piece, the rotating piece rotates relative to the supporting piece under the action of gravity of the tray, and when the tray is taken out, the rotating piece reversely rotates; the method comprises the steps that when a tray is placed in a tray clamping position, a rotating piece is placed in an initial state, and a shielding part shields a photoelectric sensor; after the tray is taken away, the shielding part returns to the initial position, the light of the photoelectric sensor is blocked, a signal is sent to the circuit board, and the computer records the information that the tray is taken away; the structure for detecting the feeding and discharging frame of the SMT material tray is adopted, and the shielding part made of the opaque material is used for being matched with the photoelectric sensor, so that the certainty is realized; in the prior art, the trays are matched with the photoelectric sensor, but the trays used by different suppliers for providing materials are not manufactured by adopting the same standard, so that certain trays are necessarily opaque, and certain trays are semi-transparent or completely transparent, so that the current intelligent material rack is difficult to accurately judge the condition of taking and placing the trays in a certain tray clamping position; therefore, compared with similar products in the prior art, the intelligent material rack has the effects of being convenient for the intelligent material rack to accurately judge the material tray taking and placing condition of a certain material tray clamping position and avoiding loss caused by misjudgment of the intelligent material rack.
Drawings
FIG. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is another perspective view of an embodiment of the present invention;
FIG. 3 is an exploded view of an embodiment of the present invention;
FIG. 4 is a perspective view of a support member according to an embodiment of the present invention;
FIG. 5 is a perspective view of a rotating member according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a tray with a structure according to an embodiment of the present invention;
FIG. 7 is a schematic view of a tray according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a structural application scenario according to an embodiment of the present invention;
FIG. 9 is a left side view of the structure of an embodiment of the present invention shown in a tray;
fig. 10 is a left side view of the structure of an embodiment of the present invention when the tray is removed.
Detailed Description
In order to better understand the aspects of the present invention, the present invention will be described in further detail with reference to the drawings and embodiments.
As shown in fig. 1-3, an embodiment of the present invention provides a structure for detecting an SMT tray feeding and discharging rack by using a photoelectric sensor, including: the support piece 1, the circuit board 2, n rotating pieces 3 which are arranged on the support piece 1 and can rotate relative to the support piece, n photoelectric sensors 4 which are connected with the circuit board 2, and a shielding part 5 which is arranged on each rotating piece. The supporting piece 1 can be made of plastic, and can be manufactured through an injection molding process, so that the supporting piece 1 of the embodiment can be composed of a plurality of supporting units, and the supporting units are connected together to form the complete supporting piece 1 in consideration of the maximum part size which can be manufactured by injection molding equipment, the rigidity and the strength of the supporting piece and the like; in fact, during assembly, the supporting member 1 is connected with the circuit board 2, so that each supporting unit is connected with the circuit board 2 to form a complete supporting member 1, and a connecting structure is not required to be arranged between two adjacent supporting units; thus, although the support 1 needs to be manufactured in segments due to process and the like, it is assembled as a whole, and thus it will be described as a whole.
n shielding portions 5 correspond to the n photoelectric sensors 4, respectively, the shielding portions 5 are used for shielding the photoelectric sensors 4 at the corresponding positions, that is, each photoelectric sensor 4 corresponds to one shielding portion 5, and the shielding portions are used for shielding the corresponding photoelectric sensor, so that the shielding portions 5 need to be made of a shielding material for preventing light from penetrating; the photoelectric sensor 4 is positioned outside the movement path of the shielding part 5 corresponding to the photoelectric sensor; n is an integer and n is not less than 2. It is obvious that, since the shielding part 5 is provided on the rotating member 3, when the rotating member 3 rotates on the supporting member 1, the shielding part 5 must rotate therewith, and the shielding part 5 has a movement path (track) thereof, and the photoelectric sensor 4 needs to correspond to the shielding part 5, that is, the purpose of the shielding part 5 is to shield the light of the photoelectric sensor 4, so that the photoelectric sensor 4 cannot be located on the movement path of the shielding part 5 exactly, but can only be located at the side of the movement path thereof, that is, the photoelectric sensor 4 can be shielded, but does not interfere with the movement of the shielding part 5. The term "shielding portion is used to shield the photoelectric sensor corresponding thereto" means that the photoelectric sensor 4 and the shielding portion 5 of the present embodiment are in one-to-one correspondence, for example, as shown in fig. 3, the leftmost photoelectric sensor 4 and the shielding portion 5 also located at the leftmost side are a pair of members corresponding to each other.
It is obvious that although the number of the rotating member 3, the photoelectric sensor 4 and the shielding portion 5 is defined as n in the embodiment, the number of the three is consistent, n is an integer and n is more than or equal to 2; however, in practice, since the number of trays 6 to be stored on the intelligent material rack is large, and one tray clamping position 7 is required for storing one tray 6, the number of the rotating member 3, the photoelectric sensor 4 and the shielding portion 5 is often far greater than two, and in practical application, the number of the three is not particularly limited, and is generally customized by the requirements of the manufacturer using the intelligent material rack, as shown in fig. 6.
The photosensor 4 employed in this embodiment is a commercially available standard, which includes a receiver 401 and a transmitter 402.
As shown in fig. 8, the structure of the embodiment of the present invention is applied to an intelligent material rack, where the intelligent material rack includes two parallel supporting frames 8, and the structure of the present invention is disposed in one of the supporting frames 8, and a plurality of material tray clamping positions 7 are disposed on the two supporting frames 8, each material tray clamping position 7 can place a material tray 6, and the material tray 6 contacts with the rotating member 3 and presses the rotating member 3 to rotate by a certain angle until the shielding portion 5 is separated from the photoelectric sensor 4.
In the embodiment, the photoelectric sensor 4 is arranged on one surface of the circuit board 2, which is adaptive to the characteristics of the shielding part 5 and the photoelectric sensor 4; n through holes 201 for respectively accommodating n shielding parts 5 are arranged in the circuit board 2; the receiver 401 and the emitter 402 of each photosensor 4 are located on both sides of one of the perforations 201, respectively. With this structure, the shielding part 5 passes through the through holes 201 during rotation, and the present embodiment takes the shielding part 5 as an initial state in the through holes 201, so each through hole 201 is not only an accommodating space of the corresponding shielding part 5, but also a part of a movement path thereof, and the receiver 401 and the transmitter 402 are positioned at both sides of the through hole 201, that is, the photoelectric sensor 4 is positioned at the outer side of the movement path of the shielding part 5; it is apparent that in the initial state of the present embodiment, the shielding portion 5 shields the light of the photoelectric sensor 4, and when the rotator 3 rotates with the shielding portion 5, the shielding portion 5 is separated from the through hole 201, so that the light of the photoelectric sensor 4 is not shielded.
Although the present embodiment directly mounts n photosensors 4 on the circuit board 2, this is obviously not the only connection mode, and as an alternative structure, a sheet may be provided for mounting n photosensors 4, and then the photosensors 4 are connected to the circuit board 2 via wires, which, although achieving similar use effects, necessarily increases the cost and makes the structure more complicated.
As shown in fig. 3 and 5, specifically, the rotating member 3 includes a receiving bar 301, an adapter plate 302 with one end fixedly connected to one end of the receiving bar, and a rotating shaft 303 with two ends movably connected to the top of the supporting member 1 respectively; one end of the shielding part 5 is connected with the other end of the adapter plate 302.
A transverse bar 304 perpendicular to the carrying bar 301 is arranged at the other end of the carrying bar 301; a first corner is formed at the connection position of the receiving bar 301 and the adapter plate 302, and a second corner is formed at the connection position of the adapter plate 302 and the shielding part 5; the rotating shaft 303 is arranged at the outer side of the first corner, and the rotating shaft 303 is perpendicular to the bearing strip 301 and the adapter plate 302. Since the outer side wall of the tray is first contacted with the receiving bar 301 when the tray 6 is placed, and the thickness dimension of the tray 6 and the receiving bar 301 is smaller, the tray 6 needs to be placed in alignment with the receiving bar 301 when placed, and the transverse bar 304 is provided, which corresponds to extending the receiving bar 301 to two sides, at this time, the user does not need to align the receiving bar 301, and the placed tray must be contacted with the transverse bar 304, so that the pressure from the tray is transferred to the rotating member 3, and the rotating member rotates relative to the supporting member 1.
After the tray 6 is removed, in order to return the rotating member 3 to the initial position, a weight 305 is further included, which is disposed outside the second corner and perpendicular to the shielding portion 5 and the adapter plate 302.
Specifically, the rotating member 3 and the shielding portion 5 in this embodiment may be made of plastic, and the transverse bar 304, the receiving bar 301, the adapter plate 302, and the shielding portion 5 are integrally formed by injection molding; that is, the shielding portion 5 here is actually a part of the rotary member 3, which is separately listed for easy understanding; and the integrated design is adopted, so that the design of the rotating piece 3 is simplified, the disposable processing is convenient, the production cost can be reduced, and the assembly is convenient. In particular, the rotor 3, like the shielding 5, is likewise made of a light-shielding material, which is a light-impermeable material, such as a conventional light-impermeable plastic.
The shielding part 5 and the adapter plate 302 are in a flat plate shape so as to reduce the weight of the rotating piece 3 and save materials; dark coatings (not shown) are provided on both surfaces of the shielding portion 5 in order to reduce the influence of ambient light.
The rotary shaft 303 is cylindrical and is formed by integrally forming a large-diameter section 303a and two small-diameter sections 303b respectively arranged at two ends of the large-diameter section 303a, and the joint of the large-diameter section and the small-diameter section is provided with a transitional arc surface.
For the reasons described above, the support 1 is not of an integrated structure but is constituted by several identical support units, for example, as shown in fig. 1-2, where the support 1 comprises three support units, but in practice the number of support units constituting the support 1 is not limited.
As shown in fig. 3 to 4, here, fig. 4 shows a perspective view of one of the support units, and in general, the support 1 includes a support base 101, n rotation brackets 102 provided on the support base, and a transverse connection bar 103 connected to the top of the n rotation brackets 102; each rotating bracket 102 comprises two mutually parallel supporting vertical plates 102a, and the top of each supporting vertical plate 102a is provided with a notch 102b; the n rotating brackets 102 are respectively connected with the n rotating members 3, and two ends of each rotating shaft 303 are respectively placed in two notches 102b of one rotating bracket 102. Here, the notch 102b is obliquely arranged, that is, an included angle a is formed between a longitudinal center line (plane) of the notch 102b and the upper surface of the supporting base 101, and 0 ° < a <90 °, when the rotating member 3 is assembled, two small-diameter sections 303b on the rotating shaft 303 are respectively embedded in two notches 102b of a certain rotating bracket 102, and when the rotating member 3 is rotated, the two ends of the rotating shaft 303 which synchronously rotate can be prevented from moving relative to the rotating bracket 102 or even separating from the rotating bracket 102, so that inconvenient use results are caused. As shown in fig. 9 to 10, particularly when the supporting member 1 is assembled with the circuit board 2, the circuit board 2 is positioned at the front side of the notch 102b, and both ends of the rotation shaft 303 are prevented from coming out of the notch 102 b.
The number of the rotating brackets 102 is identical to that of the rotating members 3, and the rotating brackets and the rotating members are in one-to-one correspondence.
The support 1 of the present embodiment is composed of a plurality of support units, but is assembled to form a single body.
The support member 1 of the present embodiment is made of a light shielding material.
In order to realize quick assembly and disassembly of the support 1 and the circuit board 2, the side surface of the top of each support vertical plate 102a is provided with a hook 102c which is integrally formed with the support vertical plate, and 2n hanging notches 202 are formed in the top of the circuit board 2 correspondingly, and the hooks 102c pass through the corresponding hanging notches 202 and are hung on the top of the circuit board 2; the hooks are located on the front side of the notch 102b as shown in fig. 3.
In summary, in this embodiment, the state of the rotating member 3 when the tray clamping position 7 is not placed on the tray 6 is taken as an initial state, in this state, the shielding portion 5 is located in the through hole 201 and located between the receiver 401 and the emitter 402, the photoelectric sensor 4 is shielded, when the tray clamping position 7 is placed on the tray 6, the side wall of the tray 6 contacts with the receiving bar 301 and the transverse bar 304 of the rotating member 3, the rotating member 3 rotates relative to the supporting member 1 after being stressed, the shielding portion 5 on the rotating member 3 rotates and rotates outside the through hole 201 and is separated from the photoelectric sensor 4, the photoelectric sensor 4 is turned on, that is, the photoelectric sensor is excited, and a signal is output to the circuit board 2, indicating that the tray 6 is placed on the tray clamping position 7 and recorded by a computer, as shown in fig. 6 and 9; after the tray 6 is removed, the rotating member 3 rotates reversely under the action of the balancing weight 305, the shielding part 5 returns to the initial position, the light of the photoelectric sensor 4 is blocked, a signal is sent to the circuit board 2, and the information that the tray 6 of the tray clamping position 7 is removed is recorded by the computer, as shown in fig. 7 and 10; the structure for detecting the feeding and discharging frame of the SMT material tray is adopted, and the shielding part 5 made of opaque materials is used for being matched with the photoelectric sensor 4, so that the certainty is realized; in the prior art, the trays 6 are matched with the photoelectric sensor 4, but the trays used by different suppliers for providing materials are not manufactured by adopting the same standard, so that some trays are opaque, and some trays are semi-transparent or completely transparent, and therefore, the current intelligent material rack is difficult to accurately judge the condition of taking and placing the trays in a certain tray clamping position; therefore, compared with similar products in the prior art, the intelligent material rack has the effects of being convenient for the intelligent material rack to accurately judge the taking and placing condition of the material tray 6 of a certain material tray clamping position 7 and avoiding loss caused by misjudgment of the intelligent material rack.
In the above description, it should be noted that the terms "mounted," "connected," and the like should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the two parts can be directly connected or indirectly connected through an intermediate medium, and can be communicated with each other inside the two parts; "disposed" is understood to mean "mounted to, disposed on," and includes mounting means such as fixed mounting, movable mounting, and the like.
It is apparent that the above-described embodiments are only some embodiments of the present invention, but not all embodiments, and the preferred embodiments of the present invention are shown in the drawings, which do not limit the scope of the patent claims. This invention may be embodied in many different forms, but rather, embodiments are provided in order to provide a thorough and complete understanding of the present disclosure. All equivalent structures made by the content of the specification and the drawings of the invention are directly or indirectly applied to other related technical fields, and are also within the scope of the invention.

Claims (10)

1. Use photoelectric sensor to detect SMT charging tray business turn over structure of material frame, characterized in that includes: the device comprises a support piece, a circuit board, n rotating pieces which are arranged on the support piece and can rotate relative to the support piece, n photoelectric sensors which are connected with the circuit board, and shielding parts which are arranged on each rotating piece; the n shielding parts are respectively corresponding to the n photoelectric sensors and are used for shielding the photoelectric sensors at the corresponding positions; the photoelectric sensor is positioned at the outer side of the movement path of the shielding part corresponding to the photoelectric sensor; n is an integer and n is not less than 2.
2. The structure for detecting the feeding and discharging rack of the SMT tray using the photoelectric sensor according to claim 1, wherein the supporting member is connected with the circuit board; the photoelectric sensor is arranged on one surface of the circuit board.
3. A structure for detecting an SMT tray feeding and discharging rack using a photoelectric sensor according to claim 2, wherein the photoelectric sensor comprises a receiver and a transmitter, n through holes for respectively accommodating n shielding parts are arranged in a circuit board; the receiver and the transmitter of each photoelectric sensor are respectively positioned at two sides of one perforation.
4. The structure for detecting the feeding and discharging frame of the SMT material tray by using the photoelectric sensor according to claim 2, wherein the rotating member comprises a supporting bar, an adapter plate with one end fixedly connected with one end of the supporting bar, and a rotating shaft with two ends respectively movably connected with the top of the supporting member; one end of the shielding part is connected with the other end of the adapter plate.
5. The structure for detecting the feeding and discharging rack of the SMT material tray by using the photoelectric sensor as claimed in claim 4, wherein the other end of the receiving strip is provided with a transverse strip perpendicular to the receiving strip; forming a first corner at the connection position of the receiving strip and the adapter plate, and forming a second corner at the connection position of the adapter plate and the shielding part; the rotating shaft is arranged on the outer side of the first corner and is perpendicular to the bearing strip and the adapter plate.
6. The structure of claim 5, further comprising a counterweight disposed outside the second corner and perpendicular to the shielding portion and the adapter plate.
7. The structure for detecting the feeding and discharging rack of the SMT material tray by using the photoelectric sensor according to claim 5, wherein the transverse bar, the receiving bar, the adapter plate and the shielding part are integrally formed; the shielding part is in a flat plate shape, and dark color coatings are arranged on two surfaces of the shielding part; the rotating piece and the shielding part are made of light shielding materials.
8. The structure for detecting the feeding and discharging rack of the SMT tray by using the photoelectric sensor according to claim 4, wherein the supporting member comprises a supporting base, n rotating brackets arranged on the supporting base, and a transverse connecting bar connected with the tops of the n rotating brackets; each rotating bracket comprises two mutually parallel supporting vertical plates, and the top of each supporting vertical plate is provided with a notch; the n rotating brackets are respectively connected with the n rotating pieces, and two ends of each rotating shaft are respectively placed in two notches of one rotating bracket.
9. The structure for detecting the feeding and discharging rack of the SMT material tray by using the photoelectric sensor according to claim 8, wherein the supporting base, the rotating bracket and the transverse connecting strip are integrally formed; the support piece is made of shading materials.
10. The structure for detecting the feeding and discharging rack of the SMT tray by using the photoelectric sensor according to claim 4, wherein a hook integrally formed with the supporting vertical plates is arranged on the side surface of the top of each supporting vertical plate, 2n hanging notches are formed in the top of the circuit board, and the hooks are hung on the top of the circuit board through the corresponding hanging notches; the hook is positioned at the front side of the notch.
CN202210121225.7A 2022-02-09 2022-02-09 Structure for detecting feeding and discharging frames of SMT (surface mounted technology) material trays by using photoelectric sensor Pending CN116605532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210121225.7A CN116605532A (en) 2022-02-09 2022-02-09 Structure for detecting feeding and discharging frames of SMT (surface mounted technology) material trays by using photoelectric sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210121225.7A CN116605532A (en) 2022-02-09 2022-02-09 Structure for detecting feeding and discharging frames of SMT (surface mounted technology) material trays by using photoelectric sensor

Publications (1)

Publication Number Publication Date
CN116605532A true CN116605532A (en) 2023-08-18

Family

ID=87680578

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210121225.7A Pending CN116605532A (en) 2022-02-09 2022-02-09 Structure for detecting feeding and discharging frames of SMT (surface mounted technology) material trays by using photoelectric sensor

Country Status (1)

Country Link
CN (1) CN116605532A (en)

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