CN103722488A - Lifting device for automatic feeder of center-less grinding machine - Google Patents
Lifting device for automatic feeder of center-less grinding machine Download PDFInfo
- Publication number
- CN103722488A CN103722488A CN201310717650.3A CN201310717650A CN103722488A CN 103722488 A CN103722488 A CN 103722488A CN 201310717650 A CN201310717650 A CN 201310717650A CN 103722488 A CN103722488 A CN 103722488A
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- bearing
- hopper
- press strip
- guide barrel
- carrying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/35—Accessories
- B24B5/355—Feeding means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branching, Merging, And Special Transfer Between Conveyors (AREA)
Abstract
The invention discloses a lifting device for an automatic feeder of a center-less grinding machine. The lifting device comprises a feed hopper and a caterpillar drive system. The caterpillar drive system capable of automatically hooking bearings in the feed hopper and lifting the same comprises a vertical rack standing in the feed hopper; a delivery chute which inclines upwards is concavely arranged on the side, located in the feed hopper, of the vertical rack, retainers are formed at two ends of the delivery chute, and a gap is reserved at the upper end of the right retainer of the delivery chute and connected with a feeding chute. A caterpillar ring is wound on the vertical rack and provided with hangers obliquely for hooking and lifting the bearings, and the hangers are arranged obliquely by facing the direction along which the bearings are guided into the gap and the feeding chute. The lifting device is of the caterpillar drive type, in other words, multiple hangers arranged obliquely are distributed on the caterpillar and capable of running upwards from the bottom of the feed hopper continuously so as to hook the bearings respectively, and thus, the bearings are fed into the feeding chute through the gap reserved on the retainer of the vertical rack to be subjected to the next processing.
Description
Technical field
The present invention relates to the charging equipment of a kind of bearing grinding centerless grinder, particularly a kind of materials device of carrying for centerless grinder automatic charging machine.
Background technology
A lot of manufacturers all come grinding bearing outer ring with centerless grinder, and bearing is the manual feeding of many employings when entering the charging aperture of centerless grinder, inefficiency, and degree of danger is high, and the accident that often has occurs.
Ye You producer adopts import equipment to carry out full-automatic material-feeding, but this kind equipment complex structure is costly, is not suitable for some small-scale producers and introduces, and is therefore necessary to design a kind of cost low, centerless grinder automatic charging machine simple in structure.Preliminary this feeder of imagination mainly comprises puies forward materials device and two parts of pay-off, and carrying materials device is mainly that bearing at random is promoted in chute feeder one by one, and in chute feeder preliminary ordered arrangement; Pay-off is that chute feeder bearing out is again arranged and made it in erectility, the outer ring of bearing contact with two rotating shafts in pay-off and on one side high speed rotating advance on one side, finally enter and in centerless grinder, grind outer ring operation.
Current primary be to design a materials device of carrying that can meet above-mentioned functions.
Summary of the invention
The present invention has overcome existing deficiency in above-mentioned prior art, provides a kind of bearing at random is promoted to the materials device of carrying in chute feeder one by one.
Technical scheme of the present invention is achieved in that
For the materials device of carrying of centerless grinder automatic charging machine, the described materials device of carrying comprises hopper and the crawler haulage system that automatically bearing in hopper is tangled and upwards promote, described crawler haulage system comprises the stand of standing in hopper, this one side that is positioned at hopper of stand is concaved with feeding groove, and feeding groove is obliquely installed obliquely, the two ends of feeding groove form rib, in the upper end of feeding groove right side rib, are provided with breach, and described breach is connected with chute feeder; In stand around there being a circle crawler belt, crawler belt moves along feeding groove, described crawler belt comprises the rectangular slab that polylith is arranged side by side in turn, between adjacent rectangular slab, leave gap between two, between rectangular slab, be to be connected by chain, chain is connected with caterpillar driving device, on each piece rectangular slab, homocline is provided with a hanging strip also upwards promoting in order to tangle bearing, hanging strip is to be obliquely installed towards the direction that bearing is imported to breach and chute feeder, is provided with the hairbrush in order to the bearing that does not enter chute feeder is scraped of a rotation in the top of feeding groove.
As preferably, the funnel-form that described hopper is big up and small down, the lower end of this one side that is positioned at hopper of stand is also provided with a horizontal segment, the bottom of described horizontal segment in hopper.Horizontal segment arranges the bottom with hopper, and it is provided with and is beneficial to the contact area and the time of contact that increase with bearing, makes conveniently bearing pocket to be entered on hanging strip, is beneficial to and carries material.
As preferably, caterpillar driving device comprises crawler haulage motor, worm-and-wheel gear and the gear train being formed by two of left and right gear, crawler haulage motor is in transmission connection by belt, belt pulley and worm-and-wheel gear, worm-and-wheel gear is connected with right gear, between two gears in left and right, be wound with driving-chain, after the tooth of two gears in left and right engages with driving-chain, engage with the chain of crawler belt again.Crawler belt adopts gear drive, and structure is more firm, and long service life is convenient to maintenance; And crawler belt is to adopt two parallel gear drive, make driving force balance more by force, in pocket material process, be difficult for getting stuck.
As preferably, in materials device, be also provided with backgauge protector carrying, described backgauge protector comprises backgauge web plate and auxiliary baffle plate, described backgauge web plate and stand are hinged, described auxiliary baffle plate is arranged on by stand, and auxiliary baffle plate protrudes from hopper upper surface, when backgauge web plate is closed, can cover on feeding groove, or when opening, be resisted against on auxiliary baffle plate.Backgauge web plate can prevent that bearing from dropping and pound people, and auxiliary baffle plate is arranged on by stand, can prevent from overflowing when bearing in hopper is by pocket material hopper.
As preferably, described chute feeder comprises a line channel and an arc guide barrel, line channel is tilted to lower setting, one end of line channel is connected with the breach on the rib of feeding groove right side, the other end of line channel is connected with the upper end of arc guide barrel, the lower end of arc guide barrel is connected with the entrance of feeding roller, the upper end of line channel is provided with one and prevents the straight line press strip that the bearing in line channel is jumped out, the width of line channel equates with the thickness of bearing, and described straight line press strip link has straight line press strip height adjustment mechanism; The upper end of arc guide barrel is provided with an arc pressuring plate matching with arc guide barrel shape, size, the width of arc guide barrel and the equal diameters of bearing, arc pressuring plate is connected with to regulate the arc pressuring plate height adjustment mechanism of spacing between arc pressuring plate and arc guide barrel.Line channel is obliquely installed, in order to bearing is guided away, arc guide barrel connects the lower one end of line channel, after bearing is fallen into by line channel, become the state lying low, the effect of a buffering has been played in the setting of its arc, is convenient to have a more stable state when entering feeding roller.
As preferably, straight line press strip height adjustment mechanism comprises along the spaced multiple press strip fixed heads of line channel length direction, press strip fixed head exceeds line channel and is fixedly linked with line channel side, on each press strip fixed head, be provided with slot and adjusting knob, adjusting knob is threaded with straight line press strip, and adjusting knob slides and straight line press strip is locked on press strip fixed head along slot.Line channel comprises the coaming plate of bottom land and bottom land both sides, and straight line press strip can be according to bearing diameter size up-down adjustment, and is locked on press strip fixed head by adjusting knob.
As preferably, arc pressuring plate height adjustment mechanism comprises along the spaced multiple pressing plate fixed heads of arc guide barrel guide direction, pressing plate fixed head exceeds arc guide barrel and is fixedly linked with arc guide barrel side, on each pressing plate fixed head, be provided with slot and adjusting knob, adjusting knob is threaded with arc pressuring plate, and adjusting knob slides and arc pressuring plate is locked on pressing plate fixed head along slot.Arc guide barrel comprises at the bottom of deep-slotted chip breaker and the curved baffle that is arranged at both sides at the bottom of deep-slotted chip breaker, and arc pressuring plate can be according to bearing thickness size up-down adjustment, and is locked on pressing plate fixed head by adjusting knob.
Bearing has an impulse force forward while just having entered chute feeder again, for having prevented that bearing from can fall to ground when stand enters chute feeder, as preferably, below the junction of chute feeder and feeding groove, be provided with blanking collecting bin, on the inwall of blanking collecting bin, be tiltedly provided with one the bearing that falls into blanking collecting bin is imported to the guide plate in hopper again.
Adopted principle of the present invention and the beneficial effect of technique scheme to be:
The present invention is simple in structure, easy to use, only needs a workman on duty on side, and that does also only has in race bearing shovel material bin to be ground.
Specifically, the materials device of carrying of the present invention is mainly the form that has adopted crawler haulage, on crawler belt, be furnished with multiple hanging strips that are obliquely installed, hanging strip is constantly come from feed hopper bottom pocket, thereby bearing is hung in each hanging strip, and last bearing enters in chute feeder and is for further processing via the breach of stand rib one by one again.
Accompanying drawing explanation
Fig. 1 is the structural representation of carrying materials device in feeder of the present invention;
Fig. 2 is the side view of carrying materials device;
Fig. 3 is the structural representation of pay-off;
Fig. 4 is the side view of pay-off.
The specific embodiment
The specific embodiment of the present invention is as follows:
Embodiment: the present invention is the important component part of centerless grinder automatic charging machine, below centerless grinder automatic charging machine entirety is described in detail: a kind of centerless grinder automatic charging machine, as shown in Fig. 1～4, comprise and carry materials device, pay-off, between above-mentioned stream oriented device, by chute feeder 4, be connected.
As shown in Fig. 1～2, the described materials device of carrying comprises hopper 1 and the crawler haulage system that automatically bearing in hopper 1 is tangled and upwards promote, described crawler haulage system comprises the stand 2 of standing in hopper 1, this one side that is positioned at hopper 1 of stand 2 is concaved with feeding groove 3, and feeding groove 3 is obliquely installed obliquely, the two ends of feeding groove 3 form rib 14, are provided with the breach 15 that feeding groove 3 is communicated with chute feeder 4 in the upper end of feeding groove 3 right side ribs 14; As shown in Figure 2, the described big up and small down funnel-form of hopper 1, the lower end of this one side that is positioned at hopper 1 of stand 2 is also provided with a horizontal segment 5, the bottom of described horizontal segment 5 in hopper 1.
Below the junction of chute feeder 4 and feeding groove 3, be provided with blanking collecting bin 33, on the inwall of blanking collecting bin 33, be tiltedly provided with one the bearing that falls into blanking collecting bin 33 is imported to the guide plate 34 in hopper 1 again.
In stand 2 around there being a circle crawler belt 6, crawler belt 6 moves along feeding groove 3, described crawler belt 6 comprises the rectangular slab 7 that polylith is arranged side by side in turn, between adjacent rectangular slab 7, leave gap 8 between two, between rectangular slab 7, be to be connected by chain 9, chain 9 is connected with caterpillar driving device, on each piece rectangular slab 7, homocline is provided with a hanging strip 11 also upwards promoting in order to tangle bearing 10, hanging strip 11 is to be obliquely installed towards the direction that bearing is imported to chute feeder, the angle that hanging strip tilts is 25～28 degree, in the top of feeding groove 3, be provided with the hairbrush 12 in order to the bearing that does not enter chute feeder 4 is scraped of a rotation, described hairbrush 12 is cylindrical, and one end of described hairbrush 12 is connected with drive motors 13.
In materials device, be also provided with backgauge protector carrying, described backgauge protector comprises backgauge web plate 23 and auxiliary baffle plate 24, described backgauge web plate 23 is hinged with stand 2, described auxiliary baffle plate 24 be arranged on stand 2 side backgauge web plates 23 after, and auxiliary baffle plate 24 protrudes from hopper upper surface, when backgauge web plate 23 is closed, can cover on feeding groove, or when opening, be resisted against on auxiliary baffle plate 24.
As shown in Figure 2, caterpillar driving device comprises crawler haulage motor 16, worm-and-wheel gear 17 and the gear train being formed by two of left and right gear 18,19, crawler haulage motor 16 is in transmission connection with worm-and-wheel gear 17 by belt 20, belt pulley 21, worm-and-wheel gear 17 is connected with right gear 19, between two gears 18,19 in left and right, be wound with driving-chain 22, after the tooth of two of left and right gear 18,19 engages with driving-chain 22, engage with the chain 9 of crawler belt again.
As shown in Figure 1, Figure 3, described chute feeder 4 comprises a line channel 25 and an arc guide barrel 26, the downward-sloping setting of line channel 25, one end of line channel 25 is connected with the breach 15 on the rib of feeding groove right side, the other end of line channel 25 is connected with the upper end of arc guide barrel 26, the upper end of line channel 25 is provided with one and prevents the straight line press strip 27 that the bearing in line channel 25 is jumped out, the width of line channel 25 equates with the thickness of bearing, and described straight line press strip 27 is connected with straight line press strip height adjustment mechanism; Straight line press strip height adjustment mechanism comprises along the spaced multiple press strip fixed heads 28 of line channel 25 length direction, press strip fixed head 28 exceeds line channel 25 and is fixedly linked with line channel 25 sides, on each press strip fixed head 28, be provided with slot 29 and adjusting knob 30, adjusting knob 30 is threaded with straight line press strip 27, and adjusting knob 30 slides and straight line press strip 27 is locked on press strip fixed head 28 along slot 29.
The upper end of arc guide barrel 26 is provided with an arc pressuring plate 31 matching with arc guide barrel 26 shapes, size, the width of arc guide barrel 26 and the equal diameters of bearing, arc pressuring plate 31 is connected with to regulate the arc pressuring plate height adjustment mechanism of spacing between arc pressuring plate 31 and arc guide barrel 26.Arc pressuring plate height adjustment mechanism comprises along the spaced multiple pressing plate fixed heads 32 of arc guide barrel guide direction, pressing plate fixed head 32 exceeds arc guide barrel 26 and is fixedly linked with arc guide barrel side, on each pressing plate fixed head 32, be provided with slot 29 and adjusting knob 30, adjusting knob 30 is threaded with arc pressuring plate 31, and adjusting knob 30 slides and arc pressuring plate 31 is locked on pressing plate fixed head 32 along the slot 29 of pressing plate fixed head 32.
As shown in Fig. 3～4, described pay-off comprises two rotating shafts 35 in order to feeding that are arranged side by side in left and right, 36, left and right two rotating shafts 35, 36 length are identical, and both synchronously rotate under the effect of same driving belt 37, wherein right spindle 36 is horizontally disposed with, left rotary shaft 35 1 head heights, other end is low, left and right two rotating shafts 35, 36 produce and intersect at right spindle 36 medium positions, left and right two rotating shafts 35, 36 include large footpath section 38 and the less path section 39 of a diameter that a diameter is larger, the path section 39 of left and right two rotating shafts is all positioned at the discharging opening position near chute feeder, between the path section 39 of left and right two rotating shafts, be provided with a feeding roller 40, the entrance that can say feeding roller 40 is connected with the lower end of arc guide barrel 26, feeding roller 40 upper ends are provided with one in order to the pressure cylinder wheel 41 between the path section of two rotating shafts about feeding roller 40 is pressed in, pressure cylinder wheel 41 is arranged on a support 42, top between the large footpath section 38 of left and right two rotating shafts is provided with the pressing plate 43 that prevents that bearing from jumping out.
This end away from feeding roller 40 of pressing plate 43 be also provided with a rotation and in order to push down bearing and to make the orderly compact arranged wheel pressing shaft 44 of bearing, described wheel pressing shaft 44 be suspended from left and right two rotating shafts large footpath section 38 between top.
Claims (8)
1. for the materials device of carrying of centerless grinder automatic charging machine, it is characterized in that: the described materials device of carrying comprises hopper and the crawler haulage system that automatically bearing in hopper is tangled and upwards promote, described crawler haulage system comprises the stand of standing in hopper, this one side that is positioned at hopper of stand is concaved with feeding groove, and feeding groove is obliquely installed obliquely, the two ends of feeding groove form rib, in the upper end of feeding groove right side rib, are provided with breach, and described breach is connected with chute feeder; In stand around there being a circle crawler belt, crawler belt moves along feeding groove, described crawler belt comprises the rectangular slab that polylith is arranged side by side in turn, between adjacent rectangular slab, leave gap between two, between rectangular slab, be to be connected by chain, chain is connected with caterpillar driving device, on each piece rectangular slab, homocline is provided with a hanging strip also upwards promoting in order to tangle bearing, hanging strip is to be obliquely installed towards the direction that bearing is imported to breach and chute feeder, is provided with the hairbrush in order to the bearing that does not enter chute feeder is scraped of a rotation in the top of feeding groove.
2. the materials device of carrying for centerless grinder automatic charging machine according to claim 1, it is characterized in that: the funnel-form that described hopper is big up and small down, the lower end of this one side that is positioned at hopper of stand is also provided with a horizontal segment, the bottom of described horizontal segment in hopper.
3. the materials device of carrying for centerless grinder automatic charging machine according to claim 1, it is characterized in that: caterpillar driving device comprises crawler haulage motor, worm-and-wheel gear and the gear train being formed by two of left and right gear, crawler haulage motor is in transmission connection by belt, belt pulley and worm-and-wheel gear, worm-and-wheel gear is connected with right gear, between two gears in left and right, be wound with driving-chain, after the tooth of two gears in left and right engages with driving-chain, engage with the chain of crawler belt again.
4. the materials device of carrying for centerless grinder automatic charging machine according to claim 1, it is characterized in that: in materials device, be also provided with backgauge protector carrying, described backgauge protector comprises backgauge web plate and auxiliary baffle plate, described backgauge web plate and stand are hinged, described auxiliary baffle plate is arranged on by stand, and auxiliary baffle plate protrudes from hopper upper surface, when backgauge web plate is closed, can cover on feeding groove, or when opening, be resisted against on auxiliary baffle plate.
5. the materials device of carrying for centerless grinder automatic charging machine according to claim 1, it is characterized in that: described chute feeder comprises a line channel and an arc guide barrel, line channel is tilted to lower setting, one end of line channel is connected with the breach on the rib of feeding groove right side, the other end of line channel is connected with the upper end of arc guide barrel, the lower end of arc guide barrel is connected with the entrance of feeding roller, the upper end of line channel is provided with one and prevents the straight line press strip that the bearing in line channel is jumped out, the width of line channel equates with the thickness of bearing, described straight line press strip link has straight line press strip height adjustment mechanism, the upper end of arc guide barrel is provided with an arc pressuring plate matching with arc guide barrel shape, size, the width of arc guide barrel and the equal diameters of bearing, arc pressuring plate is connected with to regulate the arc pressuring plate height adjustment mechanism of spacing between arc pressuring plate and arc guide barrel.
6. the materials device of carrying for centerless grinder automatic charging machine according to claim 5, it is characterized in that: straight line press strip height adjustment mechanism comprises along the spaced multiple press strip fixed heads of line channel length direction, press strip fixed head exceeds line channel and is fixedly linked with line channel side, on each press strip fixed head, be provided with slot and adjusting knob, adjusting knob is threaded with straight line press strip, and adjusting knob slides and straight line press strip is locked on press strip fixed head along slot.
7. the materials device of carrying for centerless grinder automatic charging machine according to claim 5, it is characterized in that: arc pressuring plate height adjustment mechanism comprises along the spaced multiple pressing plate fixed heads of arc guide barrel guide direction, pressing plate fixed head exceeds arc guide barrel and is fixedly linked with arc guide barrel side, on each pressing plate fixed head, be provided with slot and adjusting knob, adjusting knob is threaded with arc pressuring plate, and adjusting knob slides and arc pressuring plate is locked on pressing plate fixed head along slot.
8. the materials device of carrying for centerless grinder automatic charging machine according to claim 1, it is characterized in that: below the junction of chute feeder and feeding groove, be provided with blanking collecting bin, on the inwall of blanking collecting bin, be tiltedly provided with one the bearing that falls into blanking collecting bin is imported to the guide plate in hopper again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310717650.3A CN103722488B (en) | 2013-12-23 | 2013-12-23 | Lifting device for automatic feeder of center-less grinding machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310717650.3A CN103722488B (en) | 2013-12-23 | 2013-12-23 | Lifting device for automatic feeder of center-less grinding machine |
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| Publication Number | Publication Date |
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| CN103722488A true CN103722488A (en) | 2014-04-16 |
| CN103722488B CN103722488B (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310717650.3A Active CN103722488B (en) | 2013-12-23 | 2013-12-23 | Lifting device for automatic feeder of center-less grinding machine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889882A (en) * | 2015-06-16 | 2015-09-09 | 安徽省百基机电科技有限公司 | Anti-spattering device for bearing ring lifting feeder |
| CN105538060A (en) * | 2016-02-24 | 2016-05-04 | 镇江精工轴承厂 | Feeding mechanism in automatic grinding device for outer rings of bearings |
| CN105666259A (en) * | 2016-02-24 | 2016-06-15 | 镇江精工轴承厂 | Feeding device of automatic grinding system for bearing outer rings |
| CN106516701A (en) * | 2016-12-16 | 2017-03-22 | 安徽普伦智能装备有限公司 | Bar supply device |
| CN106743743A (en) * | 2016-12-20 | 2017-05-31 | 无锡明珠增压器制造有限公司 | A kind of bottle cap automatic charging device |
| CN106743753A (en) * | 2016-12-20 | 2017-05-31 | 无锡明珠增压器制造有限公司 | A kind of bottle cap automatic lifting feed mechanism |
| CN110893562A (en) * | 2019-12-23 | 2020-03-20 | 合肥众石机电科技有限公司 | Equal-diameter automatic feeding machine for centerless grinding machine |
| CN113526333A (en) * | 2021-09-15 | 2021-10-22 | 南通盛世复合材料科技有限公司 | Lifting installation equipment for glass fiber reinforced plastic isolation pier |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889882A (en) * | 2015-06-16 | 2015-09-09 | 安徽省百基机电科技有限公司 | Anti-spattering device for bearing ring lifting feeder |
| CN104889882B (en) * | 2015-06-16 | 2017-07-25 | 盐城亿之诺机械有限公司 | A kind of bearing ring lifts the anti-splashing device of feeder |
| CN105538060A (en) * | 2016-02-24 | 2016-05-04 | 镇江精工轴承厂 | Feeding mechanism in automatic grinding device for outer rings of bearings |
| CN105666259A (en) * | 2016-02-24 | 2016-06-15 | 镇江精工轴承厂 | Feeding device of automatic grinding system for bearing outer rings |
| CN106516701A (en) * | 2016-12-16 | 2017-03-22 | 安徽普伦智能装备有限公司 | Bar supply device |
| CN106516701B (en) * | 2016-12-16 | 2018-10-02 | 安徽普伦智能装备有限公司 | A kind of bar feeding device |
| CN106743743A (en) * | 2016-12-20 | 2017-05-31 | 无锡明珠增压器制造有限公司 | A kind of bottle cap automatic charging device |
| CN106743753A (en) * | 2016-12-20 | 2017-05-31 | 无锡明珠增压器制造有限公司 | A kind of bottle cap automatic lifting feed mechanism |
| CN110893562A (en) * | 2019-12-23 | 2020-03-20 | 合肥众石机电科技有限公司 | Equal-diameter automatic feeding machine for centerless grinding machine |
| CN113526333A (en) * | 2021-09-15 | 2021-10-22 | 南通盛世复合材料科技有限公司 | Lifting installation equipment for glass fiber reinforced plastic isolation pier |
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| CN103722488B (en) | 2017-05-10 |
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Effective date of registration: 20191209 Address after: 315318, Zhejiang Province, Ningbo City, Henghe Town, Cixi Wu Village Patentee after: Cixi Yina Bearing Co. Ltd. Address before: 315318 Zhejiang city of Ningbo province Cixi city Henghe Zhen Shi Yan Cun Patentee before: ZHEJIANG WUHUAN BEARING GROUP CO., LTD. |
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