CN213212176U - A feed mechanism for photovoltaic processing - Google Patents

A feed mechanism for photovoltaic processing Download PDF

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Publication number
CN213212176U
CN213212176U CN202022277284.2U CN202022277284U CN213212176U CN 213212176 U CN213212176 U CN 213212176U CN 202022277284 U CN202022277284 U CN 202022277284U CN 213212176 U CN213212176 U CN 213212176U
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CN
China
Prior art keywords
support
rotating wheel
conveying
wheel
movable block
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Expired - Fee Related
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CN202022277284.2U
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Chinese (zh)
Inventor
谢立平
林锐
李唐
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Kunshan Laiqilong Precision Technology Co ltd
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Kunshan Laiqilong Precision Technology Co ltd
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Priority to CN202022277284.2U priority Critical patent/CN213212176U/en
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Publication of CN213212176U publication Critical patent/CN213212176U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)

Abstract

The utility model discloses a feed mechanism for photovoltaic processing, including bottom plate, support, transmission motor and the transmission belt who sets up symmetrically in the support both sides that install in the frame, slidable installs a movable block on the support, and the upper surface of this movable block is connected with the lower surface that the fly leaf kept away from one end of third runner for this movable block and fly leaf synchronous motion, the transmission belt is close to the material loading seat that can move along vertical direction under the one end of supplied materials district, the one end of transmission belt can stretch into in the basket; and two cylinders are arranged oppositely, and a bar-shaped baffle arranged along the material conveying direction is connected to a piston rod of each cylinder. The utility model discloses avoided the silicon chip to take place the skew and suffered the damage of colliding with, the security of protection silicon chip at the transportation in-process.

Description

A feed mechanism for photovoltaic processing
Technical Field
The utility model relates to a feed mechanism for photovoltaic processing belongs to line photovoltaic processing technology field.
Background
In recent years, solar photovoltaic power generation technology is continuously improved, production cost is continuously reduced, conversion efficiency is continuously improved, and the application of photovoltaic power generation is increasingly popularized and rapidly developed, so that the photovoltaic power generation technology gradually becomes an important source of power supply. The photovoltaic silicon chip is a core part in a solar power generation system and is also the part with the highest value in the solar power generation system. The photovoltaic silicon chip is used for converting solar energy into electric energy, and the electric energy is transmitted to the electric storage to be stored or is directly used for pushing a load to work. The quality and cost of the photovoltaic silicon wafer will directly determine the quality and cost of the entire solar power system.
The photovoltaic silicon wafer is a very thin semiconductor element, and during the process of processing a photovoltaic cell by using the photovoltaic silicon wafer, the photovoltaic silicon wafer needs to be moved quickly and is prevented from being damaged, so that the feeding of the photovoltaic silicon wafer needs to be moved at a high speed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a feed mechanism for photovoltaic processing, it has avoided the silicon chip to take place the skew and suffers the damage of colliding with, protects the security of silicon chip in the transportation process.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a feeding mechanism for photovoltaic processing comprises a bottom plate, a support, a transmission motor and transmission belts, wherein the bottom plate is arranged on a rack, the support is arranged on the upper surface of the bottom plate, the transmission motor is used for driving the transmission belts and is arranged on the support, and the transmission belts are symmetrically arranged on two sides of the support;
a main driving wheel is installed on an output shaft of the transmission motor, a first rotating shaft is rotatably installed on the support, two ends of the first rotating shaft respectively extend outwards from two sides of the support, a driven driving wheel is installed at one end of the first rotating shaft which is positioned at the same side of the main driving wheel, and the driven driving wheel is in transmission connection with the main driving wheel through a synchronous belt;
the first rotating shaft is arranged on two sides of the support, a plurality of second rotating wheels are respectively rotatably arranged on two sides of the support, a movable plate is slidably arranged above the support and can reciprocate along the material conveying direction, two side end faces of one end, close to the material receiving area, of the movable plate are respectively provided with a rotatable third rotating wheel, the first rotating wheel, the second rotating wheel and the third rotating wheel which are arranged on the same side of the support are in transmission connection through a transmission belt, the upper surface of the third rotating wheel is flush with the upper surface of one second rotating wheel on the same side, and the transmission belt connected between the third rotating wheel and the second rotating wheel with flush upper surfaces is a horizontal transmission surface capable of being in contact with a material sheet;
a movable block is slidably arranged on the support, the upper surface of the movable block is connected with the lower surface of one end of the movable plate, which is far away from the third rotating wheel, so that the movable block and the movable plate synchronously move;
a feeding seat capable of moving along the vertical direction is arranged right below one end, close to the feeding area, of the conveying belt, a feeding driving assembly for driving the feeding seat to move up and down is arranged on the outer side of the feeding seat, a material basket is placed above the feeding seat, a plurality of material sheets arranged at intervals along the vertical direction are sequentially loaded in the material basket, and one end of the conveying belt can extend into the material basket;
the two sides of the support are respectively provided with an air cylinder, the two air cylinders are arranged oppositely, and a piston rod of each air cylinder is connected with a strip-shaped baffle plate arranged along the conveying direction, so that the two strip-shaped baffle plates are arranged on the outer side of the transmission belt face to face, and the upper end face of each strip-shaped baffle plate is higher than the surface of the transmission belt in contact with the material sheet.
The further improved scheme in the technical scheme is as follows:
1. in the above scheme, the cylinder is connected with the support through a mounting plate.
2. In the above scheme, the length ratio of the length of the strip-shaped baffle plate to the length of the conveying belt used for conveying the material for one section is 1: 1 to 3.
3. In the above scheme, the material loading drive assembly comprises a motor, a vertically arranged screw rod and a movable block sleeved on the screw rod through threads, an output shaft of the motor is connected with the screw rod, and the movable block is connected with the material loading seat.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:
1. the utility model discloses a feed mechanism for photovoltaic processing, it has realized transporting the full-automatic of monolithic silicon chip high-efficiently, piece by piece, has improved the stability and the security of transporting the process simultaneously, avoids external force and artificial intervention, avoids the damage of silicon chip completely, and degree of automation is high; in addition, the movable plate is slidably arranged above the support and can reciprocate along the material conveying direction, two side end faces of one end, close to the material receiving area, of the movable plate are respectively provided with a rotatable third rotating wheel, the first rotating wheel, the second rotating wheel and the third rotating wheel which are positioned on the same side of the support are in transmission connection through the transmission belt, the upper surface of the third rotating wheel is flush with the upper surface of one second rotating wheel on the same side, so that the transmission belt connected between the third rotating wheel and the second rotating wheel which are flush with the upper surfaces is a horizontal transmission surface capable of contacting with material pieces, the third rotating wheel on the movable plate drives the reciprocating motion of the transmission belt, the automatic taking of the silicon chips piece by piece is realized, the manual material discharging is reduced, the automation degree and the processing efficiency are improved, the silicon chips can be prevented from being damaged manually, and the processing efficiency and the; furthermore, a movable block is slidably mounted on the support, the upper surface of the movable block is connected with the lower surface of the movable plate far away from one end of the third rotating wheel, so that the movable block and the movable plate can move synchronously, a rotatable supporting wheel is mounted on one side end face of the movable block, the supporting wheel is in transmission connection with the first rotating wheel, the second rotating wheel and the third rotating wheel on the same side through a transmission belt, the supporting wheel is in surface contact with the transmission belt, the third rotating wheel is in surface contact with the other side of the transmission belt, and the transmission belt is guaranteed to be always kept in a tensioning state through synchronous movement of the supporting wheel and the third rotating wheel on the movable block, and further stability and safety of silicon wafer conveying are guaranteed.
2. The utility model discloses a feed mechanism for photovoltaic processing, a cylinder, two are installed respectively to its support both sides the cylinder sets up relatively, and is connected with a bar baffle that sets up along fortune material direction on the piston rod of every cylinder to make two this bar baffles set up in the outside of transmission belt face to face, the up end of bar baffle is higher than the surface of transmission belt and tablet contact, and the bar baffle through relative setting transports the silicon chip in-process at transmission belt at a high speed and leads, has avoided the silicon chip to take place to squint and suffer the damage of colliding with, protects the security of silicon chip in the transportation process.
Drawings
Fig. 1 is a top view of the overall structure of the feeding mechanism for photovoltaic processing of the present invention;
fig. 2 is a schematic view of a partial structure of a feeding mechanism for photovoltaic processing according to the present invention;
fig. 3 is a schematic view of a partial structure of the feeding mechanism for photovoltaic processing of the present invention;
fig. 4 is a schematic view of a partial structure of the feeding mechanism for photovoltaic processing according to the present invention;
figure 5 is the utility model discloses a local structure schematic diagram four for photovoltaic processing's feed mechanism.
In the above drawings: 1. a base plate; 2. a support; 3. a transmission motor; 4. a transfer belt; 5. a main drive wheel; 6. a first rotating shaft; 7. a driven wheel; 8. a first runner; 9. a second runner; 20. a cylinder; 21. a strip-shaped baffle plate; 22. mounting a plate; 24. a movable plate; 25. a third rotating wheel; 26. a movable block; 27. a support wheel; 28. a drive belt; 29. driving the rotating wheel; 30. connecting blocks; 36. a web; 37. a feeding seat; 38. a feeding drive assembly; 39. a material basket.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1: a feeding mechanism for photovoltaic processing comprises a bottom plate 1, a support 2, a transmission motor 3 and transmission belts 4 symmetrically arranged on two sides of the support 2, wherein the bottom plate 1 is arranged on a rack, the support 2 is arranged on the upper surface of the bottom plate 1, the transmission motor 3 for driving the transmission belt 4 is arranged on the support 2, and the transmission belt 4 for transmitting a material sheet 36 is arranged along a material conveying direction;
a main driving wheel 5 is installed on an output shaft of the transmission motor 3, a first rotating shaft 6 is rotatably installed on the support 2, two ends of the first rotating shaft 6 respectively extend out from two sides of the support 2, a driven driving wheel 7 is installed at one end of the first rotating shaft 6 which is positioned at the same side of the main driving wheel 5, and the driven driving wheel 7 is in transmission connection with the main driving wheel 5 through a synchronous belt;
a first rotating wheel 8 is respectively arranged on the first rotating shaft 6 and positioned at two sides of the support 2, a plurality of second rotating wheels 9 are respectively rotatably arranged at two sides of the support 2, a movable plate 24 is slidably arranged above the support 2 and can reciprocate along the material conveying direction, a rotatable third rotating wheel 25 is respectively arranged on two side end surfaces of the movable plate 24 close to one end of the material feeding area, the first rotating wheel 8, the second rotating wheel 9 and the third rotating wheel 25 which are positioned at the same side of the support 2 are in transmission connection through a transmission belt 4, and the upper surface of the third rotating wheel 25 is flush with the upper surface of one second rotating wheel 9 at the same side, so that the transmission belt 4 connected between the third rotating wheel 25 and the second rotating wheel 9 with flush upper surfaces is a horizontal transmission surface which can be contacted with the material sheet 36;
a movable block 26 is slidably mounted on the support 2, the upper surface of the movable block 26 is connected with the lower surface of one end of the movable plate 24 far away from the third rotating wheel 25, so that the movable block 26 and the movable plate 24 move synchronously, a rotatable supporting wheel 27 is mounted on one side end surface of the movable block 26, the supporting wheel 27 is in transmission connection with the first rotating wheel 8, the second rotating wheel 9 and the third rotating wheel 25 on the same side through the conveying belt 4, the supporting wheel 27 is in contact with one surface of the conveying belt 4, and the third rotating wheel 25 is in contact with the other surface of the conveying belt 4;
a feeding seat 37 capable of moving along the vertical direction is arranged right below one end, close to the feeding area, of the conveying belt 4, a feeding driving assembly 38 for driving the feeding seat 37 to move up and down is arranged on the outer side of the feeding seat 37, a material basket 39 is placed above the feeding seat 37, a plurality of material sheets 36 which are arranged at intervals along the vertical direction are sequentially loaded in the material basket 39, and one end of the conveying belt 4 can extend into the material basket 39;
an air cylinder 20 is installed respectively to 2 both sides of support, two air cylinder 20 sets up relatively, and is connected with a bar baffle 21 that sets up along the fortune material direction on the piston rod of every air cylinder 20 to make two this bar baffles 21 face-to-face setting in the outside of transmission belt 4, the up end of bar baffle 21 is higher than the surface that transmission belt 4 and tablet contacted, and when the piston rod of air cylinder was in the shrink state, transmission belt was kept away from to the inboard surface of bar baffle, and when the piston rod of air cylinder was in the extension state, the inboard surface of bar baffle was close to transmission belt.
The cylinder 20 is connected with the support 2 through a mounting plate 22; the ratio of the length of the strip-shaped baffle 21 to the length of the conveying belt 4 for conveying a material section is 1: 2;
the feeding driving assembly 38 comprises a motor, a vertically arranged screw rod and a movable block sleeved on the screw rod through threads, an output shaft of the motor is connected with the screw rod, and the movable block is connected with the feeding seat 37.
Example 2: a feeding mechanism for photovoltaic processing comprises a bottom plate 1, a support 2, a transmission motor 3 and transmission belts 4 symmetrically arranged on two sides of the support 2, wherein the bottom plate 1 is arranged on a rack, the support 2 is arranged on the upper surface of the bottom plate 1, the transmission motor 3 for driving the transmission belt 4 is arranged on the support 2, and the transmission belt 4 for transmitting a material sheet 36 is arranged along a material conveying direction;
a main driving wheel 5 is installed on an output shaft of the transmission motor 3, a first rotating shaft 6 is rotatably installed on the support 2, two ends of the first rotating shaft 6 respectively extend out from two sides of the support 2, a driven driving wheel 7 is installed at one end of the first rotating shaft 6 which is positioned at the same side of the main driving wheel 5, and the driven driving wheel 7 is in transmission connection with the main driving wheel 5 through a synchronous belt;
a first rotating wheel 8 is respectively arranged on the first rotating shaft 6 and positioned at two sides of the support 2, a plurality of second rotating wheels 9 are respectively rotatably arranged at two sides of the support 2, a movable plate 24 is slidably arranged above the support 2 and can reciprocate along the material conveying direction, a rotatable third rotating wheel 25 is respectively arranged on two side end surfaces of the movable plate 24 close to one end of the material feeding area, the first rotating wheel 8, the second rotating wheel 9 and the third rotating wheel 25 which are positioned at the same side of the support 2 are in transmission connection through a transmission belt 4, and the upper surface of the third rotating wheel 25 is flush with the upper surface of one second rotating wheel 9 at the same side, so that the transmission belt 4 connected between the third rotating wheel 25 and the second rotating wheel 9 with flush upper surfaces is a horizontal transmission surface which can be contacted with the material sheet 36;
a movable block 26 is slidably mounted on the support 2, the upper surface of the movable block 26 is connected with the lower surface of one end of the movable plate 24 far away from the third rotating wheel 25, so that the movable block 26 and the movable plate 24 move synchronously, a rotatable supporting wheel 27 is mounted on one side end surface of the movable block 26, the supporting wheel 27 is in transmission connection with the first rotating wheel 8, the second rotating wheel 9 and the third rotating wheel 25 on the same side through the conveying belt 4, the supporting wheel 27 is in contact with one surface of the conveying belt 4, and the third rotating wheel 25 is in contact with the other surface of the conveying belt 4;
a feeding seat 37 capable of moving along the vertical direction is arranged right below one end, close to the feeding area, of the conveying belt 4, a feeding driving assembly 38 for driving the feeding seat 37 to move up and down is arranged on the outer side of the feeding seat 37, a material basket 39 is placed above the feeding seat 37, a plurality of material sheets 36 which are arranged at intervals along the vertical direction are sequentially loaded in the material basket 39, and one end of the conveying belt 4 can extend into the material basket 39;
an air cylinder 20 is installed respectively to 2 both sides of support, two air cylinder 20 sets up relatively, and is connected with a bar baffle 21 that sets up along the fortune material direction on the piston rod of every air cylinder 20 to make two this bar baffles 21 face-to-face setting in the outside of transmission belt 4, the up end of bar baffle 21 is higher than the surface that transmission belt 4 and tablet contacted, and when the piston rod of air cylinder was in the shrink state, transmission belt was kept away from to the inboard surface of bar baffle, and when the piston rod of air cylinder was in the extension state, the inboard surface of bar baffle was close to transmission belt.
The ratio of the length of the strip-shaped baffle 21 to the length of the conveying belt 4 for conveying a material section is 1: 1.5; two driving rotating wheels 29 connected through a driving belt 28 are installed on one side of the support 2, wherein one driving rotating wheel 29 is connected with an output shaft of a motor installed on the support 2; the movable block 26 is connected with a driving belt 28 through a connecting block 30;
the feeding seat 37 is connected with the movable block of the feeding driving component 38 through a slide block and a slide rail in a matching way; the second roller 9 of the second roller 4, which is positioned on the same side of the support 2, is in contact with one surface of the conveyor belt 4, and the other surface of the conveyor belt 4 is in contact with the first roller 8.
When the feeding mechanism for photovoltaic processing is adopted, the efficient and piece-by-piece full-automatic conveying of the single silicon wafers is realized, the stability and the safety of the conveying process are improved, external force and manual intervention are avoided, the damage of the silicon wafers is completely avoided, and the automation degree is high;
in addition, the third rotating wheel on the movable plate drives the transmission belt to reciprocate, so that automatic taking of the silicon wafers one by one is realized, manual discharging is reduced, the automation degree and the processing efficiency are improved, the silicon wafers can be prevented from being damaged manually, and the processing efficiency and the processing quality are improved;
furthermore, the synchronous movement of the support wheel on the movable block and the third rotating wheel ensures that the transmission belt is always kept in a tensioning state, thereby ensuring the stability and safety of silicon wafer transportation;
in addition, the strip-shaped baffle plates arranged oppositely guide the silicon wafer in the process of conveying the silicon wafer by the conveying belt at a high speed, so that the silicon wafer is prevented from being collided and damaged due to deviation, and the safety of the silicon wafer in the conveying process is protected.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (4)

1. The utility model provides a feed mechanism for photovoltaic processing which characterized in that: the conveying device comprises a bottom plate (1) arranged on a rack, a support (2), a conveying motor (3) and conveying belts (4) symmetrically arranged on two sides of the support (2), wherein the support (2) is arranged on the upper surface of the bottom plate (1), the conveying motor (3) used for driving the conveying belts (4) is arranged on the support (2), and the conveying belts (4) used for conveying material sheets (36) are arranged along the conveying direction;
a main driving wheel (5) is mounted on an output shaft of the transmission motor (3), a first rotating shaft (6) is rotatably mounted on the support (2), two ends of the first rotating shaft (6) respectively extend outwards from two sides of the support (2), a driven driving wheel (7) is mounted at one end of the first rotating shaft (6) located on the same side of the main driving wheel (5), and the driven driving wheel (7) is in transmission connection with the main driving wheel (5) through a synchronous belt;
a first rotating wheel (8) is respectively arranged on the first rotating shaft (6) and positioned at two sides of the support (2), two sides of the support (2) are respectively and rotatably provided with a plurality of second rotating wheels (9), a movable plate (24) is slidably arranged above the support (2) and can reciprocate along the material conveying direction, two side end faces of the movable plate (24) close to one end of the material feeding area are respectively provided with a rotatable third rotating wheel (25), the first rotating wheel (8), the second rotating wheel (9) and the third rotating wheel (25) which are positioned at the same side of the support (2) are in transmission connection through a transmission belt (4), the upper surface of the third rotating wheel (25) is flush with the upper surface of one second rotating wheel (9) on the same side, the conveying belt (4) connected between the third rotating wheel (25) and the second rotating wheel (9) with the upper surfaces being flush is made to be a horizontal conveying surface which can be contacted with the material sheet (36);
a movable block (26) is slidably mounted on the support (2), the upper surface of the movable block (26) is connected with the lower surface of one end of the movable plate (24) far away from the third rotating wheel (25), so that the movable block (26) and the movable plate (24) synchronously move, a rotatable supporting wheel (27) is mounted on one side end face of the movable block (26), the supporting wheel (27) is in transmission connection with the first rotating wheel (8), the second rotating wheel (9) and the third rotating wheel (25) on the same side through the conveying belt (4), the supporting wheel (27) is in contact with one surface of the conveying belt (4), and the third rotating wheel (25) is in contact with the other surface of the conveying belt (4);
a feeding seat (37) capable of moving along the vertical direction is arranged right below one end, close to the feeding area, of the conveying belt (4), a feeding driving assembly (38) used for driving the feeding seat (37) to move up and down is arranged on the outer side of the feeding seat (37), a material basket (39) is placed above the feeding seat (37), a plurality of material sheets (36) which are arranged at intervals along the vertical direction are sequentially loaded in the material basket (39), and one end of the conveying belt (4) can extend into the material basket (39);
an air cylinder (20) is installed respectively to support (2) both sides, two air cylinder (20) set up relatively, and be connected with a bar baffle (21) that set up along the fortune material direction on the piston rod of every air cylinder (20) to make two this bar baffles (21) face to face set up in the outside of transmission belt (4), the up end of bar baffle (21) is higher than the surface of transmission belt (4) and tablet contact.
2. The loading mechanism for photovoltaic processing of claim 1, characterized in that: the cylinder (20) is connected to the support (2) via a mounting plate (22).
3. The loading mechanism for photovoltaic processing of claim 1, characterized in that: the length ratio of the length of the strip-shaped baffle plate (21) to the length of the conveying belt (4) for conveying one section is 1: 1 to 3.
4. The loading mechanism for photovoltaic processing of claim 1, characterized in that: the feeding driving assembly (38) comprises a motor, a vertically arranged screw rod and a movable block sleeved on the screw rod through threads, an output shaft of the motor is connected with the screw rod, and the movable block is connected with the feeding seat (37).
CN202022277284.2U 2020-10-14 2020-10-14 A feed mechanism for photovoltaic processing Expired - Fee Related CN213212176U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022277284.2U CN213212176U (en) 2020-10-14 2020-10-14 A feed mechanism for photovoltaic processing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022277284.2U CN213212176U (en) 2020-10-14 2020-10-14 A feed mechanism for photovoltaic processing

Publications (1)

Publication Number Publication Date
CN213212176U true CN213212176U (en) 2021-05-14

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ID=75826077

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022277284.2U Expired - Fee Related CN213212176U (en) 2020-10-14 2020-10-14 A feed mechanism for photovoltaic processing

Country Status (1)

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CN (1) CN213212176U (en)

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Granted publication date: 20210514