CN113911709A - Rivet area discharge apparatus - Google Patents
Rivet area discharge apparatus Download PDFInfo
- Publication number
- CN113911709A CN113911709A CN202111203701.1A CN202111203701A CN113911709A CN 113911709 A CN113911709 A CN 113911709A CN 202111203701 A CN202111203701 A CN 202111203701A CN 113911709 A CN113911709 A CN 113911709A
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- Prior art keywords
- rivet
- push rod
- strip
- pawl
- connecting rod
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- 239000000463 material Substances 0.000 claims abstract description 79
- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 238000007599 discharging Methods 0.000 claims abstract description 24
- 238000003860 storage Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 9
- 230000003068 static effect Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
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Classifications
-
- 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
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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
- B65G47/90—Devices for picking-up and depositing articles or materials
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The invention belongs to the field of rivet discharging, and particularly relates to a rivet strip discharging device which comprises a strip placing frame, a rivet strip arranged on the strip placing frame in a sliding mode, and a driving piece used for discharging rivets on the rivet strip and driving the rivet strip to feed, wherein the driving piece comprises a push rod and a connecting rod hinged with the push rod; when the push rod deviates from the rivet moving reset, the one-way clamping mechanism is clamped, the end part of the connecting rod drives the rivet material belt to feed a station, the material belt placing frame is provided with a sliding groove, a rivet head accommodating groove is formed in the sliding groove, and a rivet head of a rivet is arranged on one side, deviating from the push rod, of the rivet material belt.
Description
Technical Field
The invention belongs to the field of rivet discharging, and particularly relates to a rivet belt discharging device.
Background
At present, a nail feeding method used for assembling a truck frame is mainly manual nail feeding. Other methods for feeding nails used in connection assembly include scattered nail feeding (scattered rivets are sorted and conveyed) and belt nail feeding (arranged belt rivets are conveyed). The scattered rivet conveying is to place a certain amount of disordered rivets in a hopper, separate the rivets from the hopper through an automatic conveying device and convey the rivets to a specific position for use, wherein the rivets need to be arranged and conveyed through various devices, and the process from disorder to ordered arrangement is carried out. The strip-shaped rivet conveying is that rivets are sequentially arranged on a strip, the rivet strip is directly supplied to riveting equipment or separated from the rivet strip and then sent to a specific position for use, wherein the rivet strip is directly supplied to the riveting equipment with the rivet equipment which is arranged on the riveting equipment, the rivet equipment is usually a self-punching riveting machine, and due to the fact that the rivets are separated from the direction of the strip, the strip-shaped rivet conveying generally cannot use half-round rivets. When the rivet feeding device is fixedly applied to the scene of truck frame assembly, only three modes of manual rivet feeding, scattered rivet feeding and rivet separation from a rivet belt in belt rivet conveying are left, and the rivet is conveyed to a specific position for use, wherein the manual rivet feeding has the advantages that the frame riveting quality is greatly influenced by human factors, the assembly production efficiency is low, and the assembly cost is high; the zero-dispersion nail feeding needs to be matched with equipment such as a vibrating disc conveyer belt and the like for use, so that the cost is high and the structure is complex; the rivets are separated from the rivet belt in belt-shaped rivet conveying and then are conveyed to a specific position for supplying, the rivet belt is required to be fed and two drives for separating the rivets are matched for use, the two drives are generally matched through a sensor or set fixed time and speed, errors can be generated or accumulated in the two modes, the rivet separation failure condition can occur when the diameter of the rivet is small, and the whole assembling process of truck frame assembling is further seriously influenced.
Disclosure of Invention
The invention aims to provide a rivet strip discharging device which is adaptable to discharging of half-round head rivets and has small error and no accumulated error.
The rivet material belt feeding device comprises a material belt placing frame, a rivet material belt arranged on the material belt placing frame in a sliding mode, and a driving piece used for unloading rivets on the rivet material belt and driving the rivet material belt to feed, wherein the driving piece comprises a push rod and a connecting rod hinged with the push rod, one end, far away from the push rod, of the connecting rod and the rivet material belt are provided with a one-way clamping mechanism, when the push rod moves towards the rivets to unload the rivets, the one-way clamping mechanism is separated, and the end portion of the connecting rod slides along the rivet material belt to form a station; when the push rod deviates from the rivet moving and resetting, the one-way clamping mechanism is clamped, the end part of the connecting rod drives the rivet material belt to feed a station, a sliding groove is formed in the material belt placing frame, the rivet material belt is arranged in the sliding groove in a sliding mode, a rivet head accommodating groove is formed in the sliding groove, the rivet head of the rivet is arranged on one side, deviating from the push rod, of the rivet material belt, and the rivet head placing frame further comprises a fixture mechanism arranged at the blanking station and a female die arranged in the stroke range of the fixture mechanism.
Furthermore, the one-way clamping mechanism comprises a plurality of clamping holes which are arranged on the rivet material belt and are arranged along the feeding direction of the rivet material belt at equal intervals, and a pawl mechanism which is arranged at one end of the connecting rod, which is far away from the push rod.
Furthermore, the pawl mechanism comprises a pawl seat and a pawl which is rotationally arranged on the pawl seat through a rotating shaft, one side, corresponding to the engaging hole and/or the pawl, of the pawl is arranged in an inclined plane, the pawl is engaged with the engaging hole when the pawl drives the rivet material belt to feed, one side of the clamping jaw slides out along the engaging hole through the inclined plane when the pawl is separated from the rivet material belt, and the pawl mechanism further comprises a torsion spring which drives the pawl to reset and is coaxially arranged on the rotating shaft.
The rivet strip placing rack further comprises a chute support arranged on the side edge of the strip placing rack, a chute is arranged on the chute support in parallel to the feeding direction of the rivet strip, and the pawl seat is arranged on the chute in a sliding mode.
Furthermore, the one-way clamping mechanism comprises a ratchet bar arranged on the rivet material belt and a pawl arranged at one end of the connecting rod, which is far away from the push rod, and one side, corresponding to the pawl and/or the ratchet bar, of the pawl is arranged in an inclined plane.
Furthermore, the connecting rod extends towards one side of the rivet material belt and is provided with two branches, and the two branches and the two sides of the rivet material belt are respectively provided with a group of one-way clamping mechanisms correspondingly.
Furthermore, a discharging hole is formed in the position, below the push rod, of the material belt placing frame.
The material belt placing rack comprises a material belt placing rack, a material belt placing rack and a push rod mounting rack, wherein the material belt placing rack is fixedly arranged on the material belt placing rack, the push rod is arranged on the push rod mounting rack in a sliding mode, and the material belt placing rack further comprises a driving element used for driving the push rod to move linearly.
The invention has the advantages that the rivet discharging device is used for discharging rivets fixed on a rivet material belt and conveying the rivets to a station to be supplemented, so that a riveting device can conveniently rivet workpieces, for example, rivets are fed for riveting of a truck frame, the rivet discharging device can be fixedly adapted to rivets and rivet material belts with various models and sizes, specifically, a driving piece is arranged, when a push rod of the driving piece moves towards the rivets to discharge, a one-way clamping mechanism is separated, the end part of a connecting rod slides along the rivet material belt for one station, the feeding error of each rivet material belt is small by adopting the mode, the fact that one rivet can be pushed by the push rod to discharge each time is ensured, meanwhile, the situation of error accumulation is avoided, the accuracy and reliability of each discharge are ensured, in addition, when the push rod discharges, the rivets and the rivets are static, and the alignment and the discharge of the push rod are convenient, and when the push rod deviates from the rivet to move and reset, the one-way clamping mechanism is clamped, the end part of the connecting rod drives the rivet material belt to feed a station, namely the rivet material belt is driven to feed a station in the process of resetting the push rod, and rivets are prepared for next time of unloading the push rod.
The invention realizes that the push rod simultaneously drives the rivet material belt to feed in the resetting process to prepare for next unloading, one power unit realizes two working steps, compared with the conventional mode that two working steps are correspondingly realized by two power units of the material belt feeding unit and the unloading driving unit, one driving unit can be reduced, the energy consumption is reduced, the connection control design of time and speed is not needed for the two driving units, the cost is greatly reduced, and the design of control logic is simplified, in addition, the invention can adapt to the rivet material belts of different models by adjusting the length of the connecting rod, avoids the problem that the rivet material belts cannot be used due to different intervals of rivet arrangement, compared with the mode of feeding through a ratchet mechanism, the invention can adapt to the rivet material belts of different models only by adjusting the length of the connecting rod, has better adaptation degree and is easier to adapt to rivets of various models, and the structure is more simplified and reliable, therefore, the connecting rod can also be correspondingly arranged into a telescopic structure. The rivet is clamped to the female die through the clamping jaw mechanism after being unloaded from the rivet material belt each time, the rivet is taken by the equipment to be riveted, the clamping jaw mechanism preferably comprises a linear driving piece and a clamping jaw device used for clamping the rivet, the clamping jaw device used for clamping the rivet is driven to the female die through the linear driving piece, and the rivet is reset after being put down
Drawings
Fig. 1 is a schematic view of a first angle structure of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a second angle structure diagram of the present invention.
Fig. 4 is a top view of the present invention.
Fig. 5 is a sectional view taken along line B-B in fig. 4.
Fig. 6 is a sectional view taken along line C-C in fig. 4.
Fig. 7 is a schematic structural view of the material tape placing rack of the present invention.
In the figure, 1-the tape rack; 11-a sliding groove; 12-a blanking hole; 13-rivet head accommodating groove; 2-rivet material belt; 21-a rivet; 22-a clamping hole; 3-a driving member; 31-a push rod; 32-connecting rod; 4-a chute support; 41-a chute; 5-a pawl mechanism; 51-a pawl seat; 52-a rotating shaft; 53-pawl; 6-a push rod mounting rack; 7-a female die; 8-a jaw mechanism; 81-linear drive; 82-a gripper; 9-support.
Detailed Description
As shown in fig. 1-7, the rivet tape feeding device comprises a tape placing rack 1, a rivet tape 2 slidably arranged on the tape placing rack 1, and a driving member 3 for discharging rivets 21 on the rivet tape 2 and driving the rivet tape 2 to feed, wherein the driving member 3 comprises a push rod 31 and a connecting rod 32 hinged to the push rod 31, one end of the connecting rod 32, which is far away from the push rod 31, is provided with a one-way clamping mechanism with the rivet tape 2, when the push rod 31 moves towards the rivets 21 to discharge, the one-way clamping mechanism is disengaged, and the end of the connecting rod 32 slides along the rivet tape 2 by one station; when the push rod 31 deviates from the rivet 21 and is reset, the one-way clamping mechanism is clamped, the end part of the connecting rod 32 drives the rivet material belt 2 to feed a station, the rivet head of the rivet 21 is arranged on one side of the rivet material belt 2 deviating from the push rod 31, the material belt placing rack 1 is provided with a sliding groove 11, the rivet material belt 2 is arranged in the sliding groove 11 in a sliding mode, a rivet head accommodating groove 13 is arranged in the sliding groove 11, and the rivet material belt resetting device further comprises a clamping jaw mechanism arranged at the blanking station and a female die 7 arranged in the stroke range of the clamping jaw mechanism.
The rivet strip feeding device is used for discharging rivets 21 fixed on a rivet strip 2 and conveying the rivets 21 to a station to be supplemented, so that a riveting device can conveniently rivet workpieces, for example, rivets on a truck frame are fed, due to the discharging direction of the rivets, the rivet feeding device can be adapted to rivets and rivet strips of various types and sizes, specifically, by arranging the driving piece 3, and when a push rod 31 of the driving piece 3 moves towards the rivets 21 to discharge, the one-way clamping mechanism is separated, the end part of the connecting rod 32 slides along the rivet strip 2 for one station, by adopting the mode, the feeding error of each rivet strip 2 is small, the fact that one rivet 21 can be pushed by the push rod 31 to discharge each time is ensured, meanwhile, the situation of accumulated errors is avoided, the accurate reliability of each discharging is ensured, in addition, when the push rod 31 discharges, the rivet strip 2 and the rivets 21 are static, and the alignment and the discharging of the push rod 31 are convenient, when the push rod 31 moves away from the rivet 21 to reset, the one-way clamping mechanism is clamped, the end part of the connecting rod 32 drives the rivet material belt 2 to feed a station, namely, the rivet material belt 2 is driven to feed a station in the process of resetting the push rod 31, and the rivet 21 is prepared for next unloading of the push rod 31.
The invention realizes that the push rod 31 simultaneously drives the rivet material belt 2 to feed in the resetting process to prepare for next unloading, one power unit realizes two working steps, compared with the conventional mode that two working steps are correspondingly realized by two power units of the material belt feeding unit and the unloading driving unit, one driving unit can be reduced, the energy consumption is reduced, the connection control design of time and speed is not needed for the two driving units, the cost is greatly reduced, and the design of control logic is simplified, in addition, the invention can adapt to the rivet material belts 2 of different models by adjusting the length of the connecting rod, avoids the problem that the rivets 21 cannot be used due to different arranged intervals, and can adapt to the rivets 2 of different models only by adjusting the length of the connecting rod compared with the mode of feeding through a ratchet mechanism, such as a gun head of a self-punching riveting machine, the connecting rod 32 has better adaptation degree, is easier to adapt to rivet material belts of various models, has simpler and more reliable structure, and can also be correspondingly arranged into a telescopic structure. Each time after the rivet 21 has been removed from the strip 2 of rivets, it is clamped to the matrix 7 by means of the jaw mechanism 8, the rivet 21 is taken by the apparatus to be riveted, wherein the gripper mechanism 8 preferably comprises a linear drive 81 and a gripper 82 for gripping the rivet 21, the gripper 82, which grips the rivet 21, is driven by the linear drive 81 to the die 7 and is reset after the rivet 21 is set down, since the present invention, when the rivet 21 is discharged, the rivet heads are arranged downwards all the time, thereby being convenient for realizing that the rivet head of the rivet 21 is arranged downwards on the female die 7 all the time, improving the stability and consistency of the arrangement of the rivet 21, be provided with sliding tray 11 on the material area rack 1, rivet material area 2 slides and sets up in sliding tray 11, and the rivet material area 2 of being convenient for removes, particularly, sliding tray 11 sets up and makes rivet material area 2 only can rectilinear movement, improves the stability of feed. In addition, be provided with rivet head storage tank 13 in the sliding tray 11, can realize the removal of rivet 21, ensure the stability that rivet material area 2 removed, wherein die 7 and material area rack 1 all set up on support 9.
The one-way clamping mechanism comprises a plurality of clamping holes 22 which are arranged on the rivet material belt 2 and are arranged along the feeding direction of the rivet material belt 2 at equal intervals and a pawl mechanism 5 which is arranged on the connecting rod 32 and deviates from one end of the push rod 31, and the one-way clamping of the rivet material belt 2 is realized through the pawl mechanism 5, so that the one-way clamping is separated in one direction, and the structure is stable and reliable. Specifically, as shown in fig. 2 and fig. 6, the pawl mechanism 5 includes a pawl seat 51 and a pawl 53 rotatably disposed on the pawl seat 51 through a rotating shaft 52, one side of the engaging hole 22 and/or the pawl 53 is disposed in an inclined plane, the pawl 53 engages with the engaging hole 22 when the rivet tape 2 is driven to feed, and when the pawl 53 is disengaged, one side of the pawl 53 slides out along the engaging hole 22 through the inclined plane, and also includes a torsion spring that drives the pawl 53 to return and is disposed coaxially on the rotating shaft 52, when the connecting rod 32 returns, the pawl 53 disengages from the engaging hole 22 through the inclined plane and slides along the rivet tape 2 until entering the next engaging hole 22, at which time the pawl 53 returns through gravity or the torsion spring, the pawl 53 cannot rotate through a stopper, when the connecting rod 32 feeds, the pawl 53 engages with the engaging hole 22 to drive the rivet tape 2 to feed forward, which realizes the one-way engagement of the connecting rod 32 and the rivet tape 2 in the above manner, and therefore, the feeding of the rivet material belt 2 is completely realized when the push rod 31 is reset, and the rivet material belt 2 is kept static when the push rod 31 is unloaded, so that the unloading process is stable and reliable.
The rivet strip placing rack further comprises a chute support 4 arranged on the side edge of the strip placing rack 1, a chute 41 is arranged on the chute support 4 in parallel to the feeding direction of the rivet strip 2, the pawl seat 51 is arranged on the chute 41 in a sliding mode, the connecting rod 32 and the pawl seat 51 can move more stably and smoothly by the arrangement of the chute support 4, and the matching accuracy of the pawl 53 and the clamping hole 22 is improved.
The one-way clamping mechanism of the invention also provides another implementation mode, and specifically, the one-way clamping mechanism comprises a ratchet bar arranged on the rivet material belt 2 and a pawl arranged at one end of the connecting rod 32, which is far away from the push rod 31, wherein one side of the pawl and/or the ratchet bar corresponding to the ratchet bar is arranged in an inclined plane, so that the feeding distance is easier to set in the embodiment, and the length of the connecting rod 32 is only required to be adjusted without structurally improving the rivet material belt 2.
The connecting rod 32 extends towards one side of the rivet material belt 2 and is provided with two branches, two branches and two sides of the rivet material belt 2 are correspondingly provided with a group of one-way clamping mechanisms, and the stability of feeding of the rivet material belt 2 is ensured and the reliability of the device is improved by arranging two groups of one-way clamping mechanisms.
The material belt placing frame 1 is provided with a blanking hole 12 below the push rod 31, and the blanking hole 12 is used for conveying the rivet 21 detached from the rivet material belt 2 to a corresponding station.
The material belt placing rack further comprises a push rod mounting frame 6, the push rod 31 is convenient to mount, specifically, the push rod mounting frame 6 is of a portal frame structure, the push rod mounting frame 6 is fixedly arranged on the material belt placing rack 1, the push rod 31 is arranged on the push rod mounting frame 6 in a sliding mode, the material belt placing rack further comprises a driving element used for driving the push rod 31 to move linearly, the driving element preferably adopts an air cylinder or a hydraulic cylinder, and the push rod 31 is a piston rod of the air cylinder or the hydraulic cylinder or is connected with the piston rod.
Claims (8)
1. A rivet belt discharging device is characterized by comprising a belt placing frame (1), a rivet belt (2) arranged on the belt placing frame (1) in a sliding mode, and a driving piece (3) used for discharging rivets (21) on the rivet belt (2) and driving the rivet belt (2) to feed, wherein the driving piece (3) comprises a push rod (31) and a connecting rod (32) hinged with the push rod (31), one end, deviating from the push rod (31), of the connecting rod (32) and the rivet belt (2) are provided with a one-way clamping mechanism, when the push rod (31) moves towards the rivets (21) to discharge, the one-way clamping mechanism is separated, and the end portion of the connecting rod (32) slides along the rivet belt (2) to form a station; when push rod (31) deviates from rivet (21) and removes to reset, one-way block mechanism block, connecting rod (32) tip drive rivet material area (2) and feed a station, the rivet head setting of rivet (21) deviates from push rod (31) one side in rivet material area (2), be provided with sliding tray (11) on material area rack (1), rivet material area (2) slide and set up in sliding tray (11), be provided with rivet head storage tank (13) in sliding tray (11), still including setting up clamping jaw mechanism (8) at the unloading station and setting up die (7) at clamping jaw mechanism (8) stroke within range.
2. A rivet tape discharging device according to claim 1, characterized in that said one-way snap means comprises a plurality of snap holes (22) provided in the rivet tape (2) and arranged equidistantly in the feeding direction of the rivet tape (2) and a ratchet mechanism (5) provided in the connecting rod (32) at the end facing away from the push rod (31).
3. The rivet strip discharging device as claimed in claim 2, characterized in that the pawl mechanism (5) comprises a pawl seat (51) and a pawl (53) rotatably arranged on the pawl seat (51) through a rotating shaft (52), one side corresponding to the engaging hole (22) and/or the pawl (53) is arranged in an inclined plane, the pawl (53) is engaged with the engaging hole (22) when the rivet strip (2) is driven to feed, and when the rivet strip is separated, one side of the clamping jaw (53) slides out along the engaging hole (22) through the inclined plane, and the rivet strip discharging device further comprises a torsion spring for driving the pawl (53) to reset and coaxially arranged on the rotating shaft (52).
4. The rivet strip discharging device of claim 3, characterized by further comprising a chute support (4) arranged at the side of the strip placing rack (1), wherein a chute (41) is arranged on the chute support (4) in parallel with the feeding direction of the rivet strip (2), and the pawl seat (51) is slidably arranged on the chute (41).
5. The rivet strip discharging device of claim 1, characterized in that the one-way snap-fit mechanism comprises a ratchet bar arranged on the rivet strip (2) and a pawl arranged at one end of the connecting rod (32) opposite to the push rod (31), and one side of the pawl and/or the ratchet bar corresponding to the ratchet bar is arranged in an inclined plane.
6. Rivet strip discharge device according to any one of claims 1 to 5, characterized in that the connecting rod (32) is provided with two branches extending towards one side of the rivet strip (2), and the two branches and the two sides of the rivet strip (2) are respectively provided with a set of one-way snap-in mechanisms.
7. Rivet strip discharging device according to any one of claims 1 to 5, characterized in that the strip placing rack (1) is provided with a discharge hole (12) below the push rod (31).
8. Rivet strip discharge apparatus according to any one of claims 1 to 5, characterized in that it further comprises a push rod mounting rack (6), wherein the push rod mounting rack (6) is fixedly arranged on the strip placing rack (1), the push rod (31) is slidably arranged on the push rod mounting rack (6), and the apparatus further comprises a driving element for driving the push rod (31) to move linearly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111203701.1A CN113911709A (en) | 2021-10-15 | 2021-10-15 | Rivet area discharge apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111203701.1A CN113911709A (en) | 2021-10-15 | 2021-10-15 | Rivet area discharge apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN113911709A true CN113911709A (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111203701.1A Pending CN113911709A (en) | 2021-10-15 | 2021-10-15 | Rivet area discharge apparatus |
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| CN (1) | CN113911709A (en) |
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| CN210594245U (en) * | 2019-07-11 | 2020-05-22 | 苏州斯旺西机电有限公司 | Feeding device and riveting equipment |
| CN210236184U (en) * | 2019-07-26 | 2020-04-03 | 苏州德堡斯自动化设备有限公司 | Rivet directional feeding vibration disc |
| CN112247062A (en) * | 2020-09-30 | 2021-01-22 | 北京理工大学深圳汽车研究院 | Rivet feeding device for electromagnetic riveter |
| CN112495815A (en) * | 2020-11-10 | 2021-03-16 | 徐子祥 | Rivet material loading conveyor with autofilter function |
| CN112978299A (en) * | 2021-03-30 | 2021-06-18 | 四川爱思达航天科技有限公司 | Automatic nail feeding machine |
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Application publication date: 20220111 |