CN111038990A - Multistage cascaded crank pin feeding mechanism - Google Patents
Multistage cascaded crank pin feeding mechanism Download PDFInfo
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- CN111038990A CN111038990A CN201911389156.2A CN201911389156A CN111038990A CN 111038990 A CN111038990 A CN 111038990A CN 201911389156 A CN201911389156 A CN 201911389156A CN 111038990 A CN111038990 A CN 111038990A
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- plate
- movable lifting
- movable
- lifter plate
- plates
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- 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
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/82—Rotary or reciprocating members for direct action on articles or materials, e.g. pushers, rakes, shovels
Abstract
The invention relates to a multi-stage stepped crank pin feeding mechanism which comprises a base, a material lifting mechanism and a feeding mechanism, wherein the material lifting mechanism and the feeding mechanism are arranged on the base, the feeding mechanism comprises a material pushing mechanism arranged on the feeding mechanism, a hopper with an inclined surface, a multi-stage stepped material lifting mechanism matched with the inclined surface and a feeding mechanism matched with the material lifting mechanism and capable of realizing centering conveying are arranged on the base. The invention aims to provide a mechanism capable of replacing manpower to realize stable, reliable and efficient multi-stage lifting, automatic arrangement and centering conveying of cylindrical crank pin workpieces, and a design formula of a multi-stage material lifting mechanism and a centering feeding mechanism.
Description
Technical Field
The invention belongs to the technical field of feeding mechanisms, relates to an automatic lifting, arranging and centering conveying mechanism for crank pin workpieces, and particularly relates to a multi-stage stepped crank pin feeding mechanism.
Background
At present more and more enterprises utilize automatic machine to produce processing, and the crank pin work piece need arrange it neatly when carrying out next process, and the material loading in proper order, the work piece is more, relies on artifical arrangement to load, takes trouble hard, and production efficiency is low, increases labour cost, is unfavorable for the enterprise development.
Disclosure of Invention
The invention aims to overcome the defects of the existing crank pin feeding technology, and provides a multi-stage stepped crank pin feeding mechanism which is reasonable and simple in structural design, low in cost and convenient to operate, can replace manpower to realize the operations of loading and centering conveying of crank pins, and provides design formulas of a multi-stage material lifting mechanism and a centering feeding mechanism.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a multistage cascaded crank pin feeding mechanism, includes the frame, be provided with hopper, multistage material mechanism, the centering feeding mechanism of rising on the frame.
The multistage material lifting mechanism is arranged on the base and matched with the bottom inclined plane of the hopper, the multistage material lifting mechanism is matched with the centering feeding mechanism through an inclined sliding groove, the main components of the multistage material lifting mechanism are a plurality of movable lifting plates and a short movable lifting plate, the thicknesses t of the movable lifting plates are kept consistent, the inclination angles α of the top inclined plane are kept consistent, and the minimum overlapping length l 'between two adjacent movable plates in the operation process'minKeep consistent, the lengths l of a plurality of movable lifting plates keep consistent, and the length of a short movable lifting plate
The thickness t of the movable lifter plate is related to the inclination angle α and the crank pin workpiece diameter dmin≤t＜tmaxWherein
tmax＝tmin+sinα·d，
For reducing thickness of lifter plate
Lifting stroke s of multi-stage lifting mechanism, length l of movable lifting plate and minimum overlapping length l'minAnd the number n of the arranged movable lifting plates is related to:
n is more than or equal to 2 and less than or equal to 4 for improving the stability of the mechanism.
The main parts of the centering feeding mechanism are two circular belts arranged in parallel, and the diameter d of each circular belt1The distance delta between the circular belts is related to the diameter d of the crank pin workpiece, the quality of the crank pin workpiece, the conveying distance and the tension of the circular belts, and the general method is to take
δ∈[d-2d1,d-d1]。
Further, multistage cascaded material mechanism that rises includes the same activity lifter plate of a plurality of, the short lifter plate of a activity, fix the rack on activity lifter plate both sides, fix the short rack on short lifter plate both sides, with rack complex gear and be used for driving actuating cylinder that drives of lifter plate up-and-down motion, activity lifter plate top inclined plane inclination is between 0 ~ 90 degrees, a plurality of activity lifter plate top inclined plane incline direction and hopper bottom inclined plane incline direction keep unanimous, the equal vertical adjacent setting of activity lifter plate is parallel to each other.
Furthermore, a plurality of movable lifting plates can be arranged according to the material lifting stroke, and a short movable lifting plate is arranged.
Furthermore, the gear positions are fixed on the supporting plates at two sides of the movable lifting plate, when two adjacent movable lifting plates move to the parallel and level position, the gear is positioned at the middle height corresponding to the movable lifting plate, and the vertical distance between the centers of two adjacent gears is
The horizontal spacing is t.
Furthermore, the reference circle diameter D of the gear, the thickness h between the meshing parts at the two sides of the rack and the thickness t of the movable lifting plate have the following relations: d + h ═ t.
Furthermore, one topmost end of the movable lifting plates is connected with the driving air cylinder through a connecting block, the rest movable lifting plates transmit power through a gear and a rack, the adjacent movable plates move up and down in a reverse mode, and the minimum overlapping length l 'between the two adjacent movable lifting plates in the operation process'minRemain consistent and l'minNot less than D, taking l 'for improving running stability'min≥1.5D。
Furthermore, centering feeding mechanism, including striker plate, material limiting plate, feed back spout, push away material cylinder, striker block, pay-off spout, backup pad, two circle areas, double flute band pulley, belt pulley driving motor.
Furthermore, two circular belts are arranged on the double-groove belt wheel in parallel in an aligned mode, and the double-groove belt wheel and the belt wheel driving motor are fixedly connected to the supporting plate.
Further, the centering feeding mechanism is provided with supporting plates on two sides of the circular belt, and the purpose is as follows: firstly, providing a supporting function for a centering feeding mechanism; and secondly, in order to prevent the two circular belts from deforming due to the gravity of the workpiece to cause the distance delta between the two circular belts to be enlarged, the workpiece falls down, and the two sides of the circular belts are provided with supporting plates to reduce the enlargement of the distance between the belts.
Furthermore, the material pushing cylinder and the feeding chute are arranged on two sides of the tail end of the centering feeding mechanism.
Compared with the prior art, the invention has the outstanding and beneficial technical effects that:
1. the utility model provides a multistage cascaded crank pin feeding mechanism, multistage cascaded material mechanism that rises includes the short lifter plate of the same activity lifter plate of a plurality of, a activity, fixes the rack on activity lifter plate both sides, fixes the short rack on short lifter plate both sides, with rack complex gear and be used for driving actuating cylinder that drives of lifter plate up-and-down motion, a plurality of activity lifter plate top inclined plane incline direction keep unanimous with hopper bottom inclined plane incline direction, the equal vertical adjacent setting of activity lifter plate is parallel to each other. The thicknesses of the movable lifting plates and the short movable lifting plates are consistent with the inclination angle of the top inclined plane, the inclination angle of the top inclined plane of each movable lifting plate is 0-90 degrees, and the thickness of each movable lifting plate is set according to the diameter of a workpiece and the inclination angle of the top inclined plane of each movable lifting plate. The gear position is fixed, and when two adjacent movable lifting plates move to the flush position, the gear is positioned at the middle height of the corresponding lifting plate. The topmost movable lifting plates are connected with the driving cylinder through connecting blocks, the rest movable lifting plates transmit power through gears and racks, the adjacent movable lifting plates move up and down in a reverse mode, and the maximum staggered distance between the adjacent movable lifting plates is kept consistent. The movable lifting plates can be provided with a plurality of blocks according to the material lifting stroke, and the short movable lifting plate is provided with one block. Drive the up-and-down motion that actuating cylinder drove movable lifter plate, and the crank pin work piece in the hopper up lifts up until topmost step by step from the minimum short movable lifter plate, and the slope spout through the top slides in centering conveying mechanism, and this multistage cascaded feeding mechanism lifter plate is the movable part, only sets up one and drives actuating cylinder, and the material stroke of rising can set up according to the number flexibility of movable lifter plate, replaces the manual work, can realize once that a plurality of work pieces make progress to rise simultaneously and arrange, and production efficiency is high.
2. The centering feeding mechanism mainly comprises a material blocking plate, a material pushing cylinder, a material blocking block, a feeding chute, a supporting plate, a circular belt, a double-groove belt wheel and a belt wheel driving motor, wherein the circular belt is arranged on the double-groove belt wheel in parallel alignment, and the double-groove belt wheel and the belt wheel driving motor are connected and fixed on the supporting plate. The distance between the circular bands and the diameter of the circular bands are set according to the diameter of the crank pin workpiece. The material pushing cylinder and the feeding chute are arranged on two sides of the tail end of the centering feeding mechanism. The crank pin workpiece slides into the centering conveying mechanism through the inclined sliding groove at the top end of the multistage stepped material lifting mechanism, two circular belts on the centering conveying mechanism are tangent to the centering conveying mechanism, when the crank pin workpiece is conveyed to the tail end, the crank pin workpiece is pushed into the feeding sliding groove by the material pushing cylinder and sequentially slides into the next station, the traditional flat belt conveying is changed into two circular belts for parallel conveying, and when the crank pin workpiece is seen from the cross section, the design can enable the cylindrical crank pin workpiece to be located in the middle of the two circular belts and tangent to the two circular belts constantly in the conveying process, the position can be kept stable, and the centering conveying effect is achieved.
3. The invention provides a design formula of a multi-stage material lifting mechanism and a centering feeding mechanism, provides a relation formula among the thickness of a movable lifting plate, the inclination angle of a top inclined plane and the diameter of a workpiece, provides a relation formula among the lifting stroke of the multi-stage material lifting mechanism, the length of the movable lifting plate and the number of the movable lifting plates, provides a basis for determining the diameter and the distance of circular belts of the centering feeding mechanism, and provides a method for solving the deformation of the circular belts.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic perspective view of the present invention.
Fig. 3 is a schematic structural diagram of the multi-stage lifting mechanism of the present invention.
Fig. 4 is a schematic structural view of the centering and feeding mechanism of the present invention.
In the figure:
1-machine base, 2-hopper, 3-multi-stage material lifting mechanism, 4-centering material feeding mechanism, 5-crank pin workpiece, 31-inclined chute, 32-connecting block, 33-driving cylinder, 34-bottom plate, 35-short movable lifting plate, 36-short rack, 37-gear, 38-movable lifting plate, 39-rack, 411-driving motor, 412-supporting plate, 413-circular belt, 414-double-groove belt pulley, 42-material baffle, 43-material limiting plate, 44-material feeding chute, 45-material baffle block, 46-material pushing cylinder and 47-material returning chute.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, which are described herein for illustrative purposes only and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 4:
the utility model provides a multistage cascaded crank pin feeding mechanism, multistage cascaded material mechanism 3 that rises includes the same activity lifter plate 38 of a plurality of, the short lifter plate 35 of an activity, fixes rack 39 on activity lifter plate 38 both sides, fixes short rack 36 on short lifter plate 35 both sides, with rack 36, rack 39 complex gear 37 and be used for driving actuating cylinder 33 of lifter plate up-and-down motion, a plurality of lifter plates 38 and short lifter plate 35 top inclined plane incline direction keep unanimous with hopper bottom inclined plane incline direction, activity lifter plate 38 and the equal vertical adjacent setting of short lifter plate 35 are parallel to each other. The thicknesses of the plurality of movable lifting plates 38 and the short movable lifting plate 35 are consistent with the inclination angle of the top inclined plane, the inclination angle of the top inclined plane of each movable lifting plate is 0-90 degrees, and the thickness of each movable lifting plate is set according to the diameter of a workpiece and the inclination angle of the top inclined plane of each movable lifting plate. The gear 37 is fixed, and when two adjacent movable lifting plates move to the flush position, the gear is positioned at the middle height of the corresponding lifting plate. The top ends of the movable lifting plates are provided with connecting blocks 32 which are connected with a driving cylinder 33, the other movable plates transmit power through a gear 37, a rack 39 and a short rack 36, the adjacent movable plates move up and down in a reverse direction, and the maximum staggered distance between the adjacent movable lifting plates is kept consistent. The movable lifting plates 38 can be provided with a plurality of blocks according to the material lifting stroke, and the short movable lifting plate 35 is provided with one block. Drive the up-and-down motion that actuating cylinder 33 drove the activity lifter plate, crank pin work piece 5 in the hopper 2 is from the minimum short activity lifter plate 35 up lifting step by step until topmost, slope spout 31 through the top slides in centering conveying mechanism 4, this multistage cascaded feeding mechanism lifter plate is the movable part, only set up one and drive actuating cylinder 33, it can set up according to the number of activity lifter plate 38 is nimble to rise the material stroke, replace the manual work, once can realize that a plurality of work pieces upwards rise the material and arrange simultaneously, high production efficiency.
The centering feeding mechanism 4 mainly comprises a material blocking plate 42, a material pushing cylinder 46, a material blocking block 45, a feeding chute 44, a supporting plate 412, a circular belt 413, a double-groove belt wheel 414 and a belt wheel driving motor 411, wherein the circular belt 413 is parallelly and alignedly arranged on the double-groove belt wheel 414, and the double-groove belt wheel 414 and the belt wheel driving motor 411 are connected and fixed on the supporting plate 412. The spacing between the circular bands 413 and the diameter of the circular bands 413 are set according to the crankpin workpiece 5 diameter. The pushing cylinder 46 and the feeding chute 44 are arranged at two sides of the tail end of the feeding mechanism. The crank pin workpiece 5 slides into the centering conveying mechanism 4 through the inclined chute 31 at the top end of the multistage stepped material lifting mechanism 3, two circular belts 413 on the centering conveying mechanism 4 are tangent to the centering conveying mechanism, when the crank pin workpiece is conveyed to the tail end, the crank pin workpiece is pushed into the material conveying chute 44 by the material pushing cylinder 46 and slides into the next station in sequence, the traditional flat belt conveying is changed into the parallel conveying of the two circular belts, and the design can enable the cylindrical crank pin workpiece to be positioned in the middle of the two circular belts and tangent to the two circular belts constantly in the conveying process, so that the position can be kept stable, and the centering conveying effect is achieved.
The working principle of the invention is as follows: the cylindrical crank pin workpiece 5 rolls downwards along the bottom inclined plane of the hopper 2 under the action of gravity, the inclined directions of the top inclined planes of the movable lifting plate 38 and the short movable lifting plate 35 are consistent with the inclined plane of the hopper 2, so that the rolling direction of the crank pin workpiece 5 is consistent, the crank pin workpiece 5 can be kept on the movable lifting plate 38 and the short movable lifting plate 35 in the process of lifting upwards step by step, meanwhile, the top inclined plane of the movable lifting plate 38 and the side surface of the adjacent movable lifting plate 38 form a V shape, the workpiece can be placed in position, and the lifting process of the crank pin workpiece on the multi-stage material lifting mechanism is the same; the topmost movable lifting plate 38 and the driving cylinder 33 are connected through a connecting block 32 and are driving parts, the rest adjacent movable lifting plates transmit power through a gear 37 and a rack 39 and are driven parts, the adjacent movable lifting plates move up and down in a reverse direction, the lowest short movable lifting plate is the first movable lifting plate, and then the odd lifting plates ascend and the even lifting plates descend, and vice versa. When the crank pin work piece 5 slides to the first movable lifter plate, the odd number lifter plate rises, the even number lifter plate descends, the first movable lifter plate rises, the second movable lifter plate descends, when two movable lifter plate top inclined planes are parallel and level, the crank pin work piece 5 at the first movable lifter plate slides in the second movable lifter plate along the inclined plane, then, the odd number lifter plate descends, the even number lifter plate rises, namely the second movable lifter plate rises, the third movable lifter plate descends, when two movable lifter plate top inclined planes are parallel and level, the crank pin work piece 5 at the second movable lifter plate slides in the third movable lifter plate along the inclined plane, and the crank pin work piece is lifted upwards step by step. When the crank pin workpiece 5 reaches the topmost end, the crank pin workpiece slides into the centering feeding mechanism 4 through the inclined sliding groove 31 at the top, the crank pin workpiece rolls into a conveying belt formed by two parallel circular belts 413, and the circular section of the crank pin workpiece is circumscribed with the circular sections of the two circular belts when viewed from the cross section, so that the position of the workpiece can be kept stable in the conveying process, when the workpiece reaches the tail end, the material blocking block 45 blocks the workpiece to move forwards, the material pushing cylinder 46 pushes the workpiece into the feeding sliding groove 44 to sequentially slide into the next station, and if the workpiece 5 slides into the centering feeding mechanism 4 through the multi-stage material lifting mechanism 3, the workpiece 5 is not in the right position and can be blocked by the material limiting plate 43 in the conveying process and slides into the hopper 2 through the material returning sliding groove 47.
The above-described embodiments are intended to be illustrative only, and not to be limiting, of the scope of the invention, which is to be given the full breadth of the appended claims and any and all equivalents thereof.
In conclusion, the invention has reasonable and simple structural design, low cost and convenient operation, replaces manpower, can realize the simultaneous upward lifting and arrangement of a plurality of workpieces at one time, has high production efficiency, can ensure that the cylindrical crank pin workpiece is positioned at the middle position of two circular belts and tangent with the circular belts at any time in the conveying process, can keep stable position, plays the role of centering conveying,
the invention also provides a design formula of the multi-stage material lifting mechanism and the centering feeding mechanism, provides a relation formula among the plate thickness of the movable lifting plate, the inclination angle of the top inclined plane and the diameter of a workpiece, provides a relation formula among the material lifting stroke of the multi-stage material lifting mechanism, the length of the movable lifting plate and the number of the movable lifting plates, provides a basis for determining the diameter and the distance of circular belts of the centering feeding mechanism, and provides a method for solving the deformation of the circular belts.
Claims (10)
1. A multi-stage stepped crank pin feeding mechanism comprises a machine base (1), wherein a hopper (2), a multi-stage material lifting mechanism (3) and a centering feeding mechanism (4) are arranged on the machine base; the method is characterized in that: the multi-stage material lifting mechanism (3) is arranged on the machine base (1) and is matched with the inclined plane at the bottom of the hopper (2), and the multi-stage material lifting machineThe mechanism (3) is matched with the centering feeding mechanism (4) through an inclined chute (31), the main components of the multi-stage lifting mechanism (3) are a plurality of movable lifting plates (38) and a short movable lifting plate (35), the thicknesses t of the movable lifting plates are kept consistent, the top slope inclination angle α is kept consistent, and the minimum overlapping length l 'between two adjacent movable plates in the operation process'minKeep consistent, the lengths l of a plurality of movable lifting plates (38) keep consistent, and the length of a short movable lifting plate (35)
The thickness t of the movable lifting plate is related to the inclination angle α and the diameter d of the crank pin workpiece (5)min≤t＜tmaxWherein
tmax＝tmin+sinα·d，
For reducing thickness of lifter plate
Lifting stroke s of multi-stage lifting mechanism (3), length l of movable lifting plate and minimum overlapping length l'minAnd the number n of the arranged movable lifting plates (38) is related to:
in order to improve the stability of the mechanism, n is generally more than or equal to 2 and less than or equal to 4; the main components of the centering feeding mechanism (4) are two circular belts (413) which are arranged in parallel, and the diameter d of each circular belt (413)1The distance delta between the circular belts (413) is related to the diameter d of the crank pin workpiece (5), the quality of the crank pin workpiece (5), the conveying distance and the circular belt tension, and the general extraction
Wherein delta e [ d-2d ∈1,d-d1]。
2. The multi-step crankpin feed mechanism of claim 1, wherein: multistage cascaded material mechanism (3) of rising includes the same activity lifter plate (38) of a plurality of, short lifter plate (35) of a activity, fixes rack (39) on activity lifter plate (38) both sides, fixes short rack (36) on short lifter plate (35) both sides, with rack (36), rack (39) complex gear (37) and be used for driving actuating cylinder (33) of lifter plate up-and-down motion, a plurality of lifter plates (38) and short lifter plate (35) top inclined plane incline direction keep unanimous with hopper (2) bottom inclined plane incline direction, activity lifter plate (38) and the equal vertical adjacent setting of short activity lifter plate (35) are parallel to each other.
3. The multi-step crankpin feed mechanism of claim 2, wherein: the number of the short movable lifting plates (35) is 1, and the movable lifting plates (38) can be provided with a plurality of blocks according to the material lifting stroke.
4. The multi-step crankpin feed mechanism of claim 2, wherein: the gears (37) are fixed on the supporting plates at two sides of the movable lifting plate (38), when two adjacent movable lifting plates (38) move to the flush position, the gears (37) are positioned at the middle height corresponding to the movable lifting plates (38), and the vertical distance between the centers of two adjacent gears (37) is
The horizontal spacing is t.
5. The multi-step crankpin feed mechanism of claim 2, wherein: the reference circle diameter D of the gear (37), the thickness h between the meshing parts at the two sides of the rack (39) and the short rack (36) and the thickness t of the movable plate are in the following relation: d + h ═ t.
6. The multi-step crankpin feed mechanism of claim 2, wherein: the top movable lifter plate (38) and driveThe cylinders (33) are connected through a connecting block (32), the other movable lifting plates (38) transmit power through a gear (37), a rack (39) and a short rack (36), the adjacent movable lifting plates (38) move up and down in a reverse direction, and the minimum overlapping length l 'between the two adjacent movable lifting plates (38) in the operation process'minRemain consistent and l'minNot less than D, taking l 'for improving running stability'min≥1.5D。
7. The multi-step crankpin feed mechanism of claim 1, wherein: the centering feeding mechanism (4) comprises a material baffle plate (42), a material limiting plate (43), a material returning sliding groove (47), a material pushing cylinder (46), a material baffle block (45), a feeding sliding groove (44), a supporting plate (412), a circular belt (413), a double-groove belt wheel (414) and a belt wheel driving motor (411).
8. The multi-step crankpin feed mechanism of claim 7, wherein: support plates (412) are arranged on two sides of the circular belt (413).
9. The multi-step crankpin feed mechanism of claim 7, wherein: the two circular belts (413) are arranged on the double-groove belt wheel (414) in parallel in an aligned mode, and the double-groove belt wheel (414) and the belt wheel driving motor (411) are connected and fixed on the supporting plate (412).
10. The multi-step crankpin feed mechanism of claim 7, wherein: the material pushing cylinder (46) and the feeding chute (44) are respectively arranged at two sides of the tail end of the centering feeding mechanism (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911389156.2A CN111038990A (en) | 2019-12-30 | 2019-12-30 | Multistage cascaded crank pin feeding mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911389156.2A CN111038990A (en) | 2019-12-30 | 2019-12-30 | Multistage cascaded crank pin feeding mechanism |
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| CN111038990A true CN111038990A (en) | 2020-04-21 |
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| CN201911389156.2A Pending CN111038990A (en) | 2019-12-30 | 2019-12-30 | Multistage cascaded crank pin feeding mechanism |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112722814A (en) * | 2020-12-31 | 2021-04-30 | 四川航天神坤科技有限公司 | Cylindrical material increases journey hoisting device |
| CN113060535A (en) * | 2021-03-18 | 2021-07-02 | 孙玉东 | Transportation equipment for processing rubber rod for tire |
| CN116199006A (en) * | 2023-05-06 | 2023-06-02 | 深圳市德科智控装备有限公司 | Automatic electronic component feeding device |
-
2019
- 2019-12-30 CN CN201911389156.2A patent/CN111038990A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112722814A (en) * | 2020-12-31 | 2021-04-30 | 四川航天神坤科技有限公司 | Cylindrical material increases journey hoisting device |
| CN113060535A (en) * | 2021-03-18 | 2021-07-02 | 孙玉东 | Transportation equipment for processing rubber rod for tire |
| CN116199006A (en) * | 2023-05-06 | 2023-06-02 | 深圳市德科智控装备有限公司 | Automatic electronic component feeding device |
| CN116199006B (en) * | 2023-05-06 | 2023-08-15 | 深圳市德科智控装备有限公司 | Automatic electronic component feeding device |
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Application publication date: 20200421 |
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