CN101885085B - Inside diameter slicer and flexible automatic feeding device thereof - Google Patents
Inside diameter slicer and flexible automatic feeding device thereof Download PDFInfo
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- CN101885085B CN101885085B CN2010101937386A CN201010193738A CN101885085B CN 101885085 B CN101885085 B CN 101885085B CN 2010101937386 A CN2010101937386 A CN 2010101937386A CN 201010193738 A CN201010193738 A CN 201010193738A CN 101885085 B CN101885085 B CN 101885085B
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Abstract
The invention relates to an inside diameter slicer and a flexible automatic feeding device thereof. The inside diameter slicer comprises a stander and a power head fixedly connected with the stander, wherein the power head is provided with an inner circle cutter; the inside diameter slicer also comprises the flexible automatic feeding device, a material clamping unit and a feeding unit of the flexible automatic feeding device, and an elastic unit acting between the material clamping unit and the feeding unit; and the flexible automatic feeding device of the inside diameter slicer comprises a transmission mechanism, a tension balancing mechanism, a transmission belt connecting mechanism and a control method. The invention provides the inside diameter slicer with high efficiency and accuracy, and the flexible automatic feeding device thereof.
Description
Technical field
The present invention relates to inside diameter slicer, and relate to a kind of inside diameter slicer flexible automatic feeding device.
Background technology
Inside diameter slicer is to be used for the equipment of cutting hard brittle metal and nonmetallic materials specially.Material uses adhesive to be bonded on the flitch frame usually, through the motor-driven screw mandrel or use weight to drive the motion of flitch frame, usually transversely or the vertical direction feeding cut.
Be widely used at present by the mode of horizontal direction cutting (laterally); Exist and be prone to sheet; Poor product quality, production efficiency is hanged down inferior problems, and main cause is because the cutting force and the resultant direction of the gravity of material own that cut a little trend towards the freely falling body direction; And, cause the extremely unstable of working angles because of the influence of the factors such as vibrations of machine itself.
Chinese patent document CN201329448 is in disclosed multi-cutter head inside diameter slicer on October 21st, 2009; This multi-cutter head inside diameter slicer comprises the cutter plate by main driven by motor; The workbench that moves horizontally by stepper motor or handwheel drive is located at clamping utensil and Control System of Microcomputer on the workbench, and workbench is provided with the elevating mechanism with horizontal vertical; The object that is fixed tightly on the workbench is moved horizontally in the interior circle cutter plate, driven by elevating mechanism and is making vertical displacement movement.
Above-mentioned patented technology is compared with horizontal resection, and the stationarity and the precision of cutting all increase, but still can not satisfy the requirement of precision component batch machining.The same with above-mentioned patented technology; Existing inside diameter slicer generally all uses the motor-driven screw mandrel to drive the mode that the flitch motion realization cuts feeding; Because motor normally drives screw mandrel by the speed rotation of setting and drives nut and move, its displacement of process at the uniform velocity can be considered straight line, output torque is constant.But since the cutting blade material matrix used of inside diameter slicer normally thickness be the stainless steel substrates of 0.12mm; The resistance type ability of itself is very low; In use because the influence of factors such as workman's qualification, blade mounting process, the temperature distortion of blade own; The tension force of blade is uneven, and the circle of the interior circle of cutting edge is beated bigger, usually greater than 0.02mm.
The electrogilding emery cutting edge of cutting blade is is constantly worn and torn by the frictional force effect in cutting process in addition; Cause the sharpness of cutting edge constantly to reduce; So its cutting tension force is constantly to change in the actual cut process, so the mode of using motor-driven screw mandrel drive flitch motion realization to cut feeding causes problems such as cutting efficiency is low, cropping of products is of poor quality, blade is easy to wearing and tearing, operation easier is big.Use weight to drive the mode that the flitch motion realization cuts feeding; The moment that its driving cuts is determined by the weight that mounts weight; Just cut distortion and the wearing and tearing of blade in the process though can solve material to a certain extent; But because the workman can only constantly increase and decrease the weight of weight according to the experience of cutting in the use, operation easier is big, and the effect of use is unsatisfactory.
To sum up, existing inner circle cutting machine is a rigidity because of its feeding feed system, and centripetal force is fixed, and the difference of actual cut Li Zeyin penetraction depth and the mechanical performance of material own changes greatly, and machining accuracy is limited.
Summary of the invention
The objective of the invention is to overcome the weak point of above-mentioned prior art, and provide a kind of machining accuracy high inside diameter slicer, and a kind of inside diameter slicer flexible automatic feeding device.
The object of the invention can be realized through following technical scheme: inside diameter slicer, comprise frame, and the unit head that is fixedly connected with frame, unit head is provided with interior round cutting-off tool; It is characterized in that: this inside diameter slicer also comprises flexible automatic feeding device, flexible automatic feeding device material folding unit and feed unit, and act on the Flexible element between material folding parts and the infeed mean.
Inside diameter slicer is characterized in that: said feed unit further comprises driver part, guiding parts, and said driver part comprises a cog belt.
Inside diameter slicer is characterized in that: said feed unit further comprises driver part, guiding parts, and said guiding parts has linear guide elements, and the direction that is provided with of linear guide elements is more than or equal to 75 °, less than 90 ° for the straight angle with horizontal direction.
Inside diameter slicer is characterized in that: said Flexible element comprises the compression spring, and the set screw nail that is used to regulate the compression initial tension of spring.
Inside diameter slicer is characterized in that: said driver part also comprises the servomotor that is set to the output of constant force square.
The object of the invention can be realized through following technical scheme: the inside diameter slicer flexible automatic feeding device, it comprises transmission mechanism, equalization of strain mechanism, driving-belt bindiny mechanism, control method.
The transmission mechanism of inside diameter slicer flexible automatic feeding device of the present invention is characterized in that: the driven by servomotor drive pulley; Drive pulley drives driving-belt; Push rod, contiguous block through driving-belt bindiny mechanism promote to cut the feeding balladeur train, cut the feeding balladeur train and move up and down along being installed in two guide rails that cut on the feeding seat.Guide rail is parallel with cutting feeding seat axis; The axis that cuts the feeding seat becomes angle with length feed slide plate datum level; Its angle characteristic is that cutting force and the resultant direction of the gravity of material own a little approached to cut in the axis, and angle is less than 90 in the actual test.More than or equal to 75.Between its stablizing effect the most desirable.
The equalization of strain mechanism of inside diameter slicer flexible automatic feeding device of the present invention is characterized in that: the driven belt wheel shaft is installed in the chute that cuts the feeding seat and is connected with tension adjustment screw; Be set with the constant force stage clip in the tension adjustment screw; The constant force stage clip bears gravity that cuts the feeding balladeur train and the pressure that cuts the feeding generation simultaneously; When cutting the pressure that pressure surpass to set, the compression of constant force stage clip.
The control method of inside diameter slicer flexible automatic feeding device of the present invention is characterized in that: the gravity on the pressure that the first is regulated the constant force stage clip through tension adjustment screw makes it and cuts the feeding balladeur train equates; When blade switches to material production when cutting pressure; The constant force stage clip is cutting generation compression under the pressure effect, and the driven belt wheel shaft descends thereupon, and driving-belt loosens; The pressure that cuts that blade switches to material production also reduces, thereby guarantees to cut the unanimity of pressure.It two adopts digital control servo-drive system, and PLC monitors the servomotor moment variations in real time, and makes according to the rotating speed that servomotor is regulated in the variation of moment automatically and to cut pressure stability.The driving-belt that the present invention in addition selected for use, its material mainly is a rubber, has certain elastic telescopic amount, has guaranteed the stationarity of feeding to a certain extent.
The multitool head mode of cutting of inside diameter slicer flexible automatic feeding device of the present invention is characterized in that: many jackings grillage is installed on same feed arrangement, is loaded many sheet material material and carry out the multitool head and cut simultaneously.
The inside diameter slicer flexible automatic feeding device; Comprise the control system and transmission mechanism, tension balance device mechanism and the driving-belt bindiny mechanism that constitute by touch-screen (HMI), Programmable Logic Controller (PLC), Digital Servo Driver, it is characterized in that follower shaft (10) is installed in the chute that cuts feeding seat (18) top, is connected by tension adjustment screw (8); Constant force stage clip (9) is sleeved on tension adjustment screw (8) and cuts between the pressure spring slot at feeding seat (18) top; Set the pretightning force of constant force stage clip (9), when cutting pressure when surpassing the pretightning force of constant force stage clip (9), constant force stage clip (9) produces compression; Driven belt wheel shaft (10) and driven pulley (7) descend thereupon; Driving-belt (6) loosens, and the cutting edge of cutting blade (13) and material cut pressure to be reduced thereupon, thereby guarantees to cut the unanimity of pressure.
The inside diameter slicer flexible automatic feeding device; It is characterized in that cutting the feed servo motor by control system control; Drive drive pulley (3) rotation through accurate reductor; Drive driving-belt (6) around driven pulley (7) motion, driving-belt bindiny mechanism drives and cuts feeding balladeur train (11) and move up and down along guide rail (2) and realize cutting feeding and withdrawing.
The inside diameter slicer flexible automatic feeding device; It is characterized in that the control system increases KP, differential gain KD, storage gain KI parameter and servo-driver feedback moment value PV according to moment desired value SV, the ratio of touch-screen input and carries out the PID computing, make Programmable Logic Controller (PLC) output pulse frequency control servomotor rotating speed carry out oneself and adjust maintenance and cut pressure stability according to feedback moment value PV.
The inside diameter slicer flexible automatic feeding device; It is characterized in that guide rail (2) is installed in cuts the symmetrical two sides of feeding seat (18); And be parallel to the axis that cuts feeding seat (18), the axis becomes angle β with the datum level of length feed slide plate (1), angle β less than 90 ° more than or equal to 75 °.
The inside diameter slicer flexible automatic feeding device; It is characterized in that at both sides that cut feeding balladeur train (11) and top left bottom knife (20), upper left blade (22), upper right blade (24), the bottom right blade (25) installed on skid bed (19), upper left skid bed (21), upper right skid bed (23), bottom right skid bed (26) and the corresponding main shaft cutterhead with it under the left side being installed simultaneously constitutes the layout type that four blade cuts simultaneously; Also can left bottom knife (20), the bottom right blade (25) that install on skid bed (19), bottom right skid bed (26) and the corresponding main shaft cutterhead with it down on a left side be installed cutting feeding balladeur train 11 both sides, or the upper left blade of installing on upper left skid bed (21), upper right skid bed (23) and the corresponding main shaft cutterhead with it (22), the layout that upper right blade (24) formation double-pole cuts simultaneously be installed cutting feeding balladeur train (11) top.
Inside diameter slicer of the present invention is provided with Flexible element, can cushion centripetal force, compared with prior art, realizes that cutting force is steady relatively, has the high characteristics of machining accuracy.Of the present invention have constant force stage clip and a tension adjustment screw, can realize that also cutting force is steady relatively, compared with prior art, has the high characteristics of machining accuracy.
When solving above technical problem underlying; Also from solved at all, traditional slicer cuts the unstability in the process for inside diameter slicer of the present invention and inside diameter slicer flexible automatic feeding device, and section low precision, curved sheet, tool marks are obvious; Complicated operation, problems such as slice efficiency is low.
Description of drawings
First implements the structure chart of power to Fig. 1 for the present invention.
First implements the mechanism position key diagram of power to Fig. 2 for the present invention.
First implements the tension balance device mechanism enlarged drawing of power to Fig. 3 for the present invention.
First implements the driving-belt bindiny mechanism enlarged drawing of power to Fig. 4 for the present invention.
Fig. 5 cuts the mode schematic layout pattern for the multitool head that first embodiment of the invention cooperates.
First implements the moment tracking velocity control block diagram of power to Fig. 6 for the present invention.
The specific embodiment
Referring to figs. 1 to Fig. 6, first embodiment of the present invention is a kind of inside diameter slicer flexible automatic feeding device.
In the present embodiment, the inside diameter slicer flexible automatic feeding device is made up of touch-screen (HMI), Programmable Logic Controller (PLC), digital servosystem, transmission mechanism, tension balance device mechanism, driving-belt bindiny mechanism.Cut the feed servo motor and drive drive pulley 3 rotations through accurate reductor, drive pulley 3 drives driving-belt 6 around driven pulley 7 motions.As shown in Figure 4, cingulum folder 5 clamps driving-belts 6 with contiguous block 16, and contiguous block 16 is connected with guide pillar 15 with connecting plate 17, thereby drive cuts feeding balladeur train 11, cuts the guide rail slide block of fixing on the feeding balladeur train 11 4 and moves up and down realization along guide rail 2 and cut feeding and withdrawing.
Shown in Figure 1, guide rail 2 is installed in and cuts feeding seat 18 symmetrical two sides, and is parallel to the axis that cuts feeding seat 18, and the axis becomes angle β with the datum level of length feed slide plate 1, and angle β is less than 90.More than or equal to 75.。
The computing formula of angle β is following:
Wherein F be cutting force, the G of cutting direction be balladeur train 11 with mounted component weight and, α be angle, the R of F and G be F and G with joint efforts.Owing to cut the variation of different materials, speed of cut, the size that the blade cutting edge sharpness directly influences cutting force F; Angle β is also different; So angle β adopts preferred rule, the axis that cuts feeding seat 18 when guaranteeing the common used material cutting is near the direction of the R that makes a concerted effort.
Shown in Figure 3, follower shaft 10 is installed in the chute that cuts feeding seat 18 tops, is connected by tension adjustment screw 8, and constant force stage clip 9 is sleeved on tension adjustment screw 8 and cuts between the pressure spring slot at feeding seat 18 tops.Adjustment of tonicity adjustment screw 8 when static; The decrement tension force that makes constant force stage clip 9 with cut feeding balladeur train 11 and mounted component is equal in weight, promptly driving-belt 6 is just exceptionally straight, the height of measuring constant force stage clip 9 is designated as A; Cutting feeding balladeur train 11 middle positions placement 1KG counterweight; The height of measuring constant force stage clip 9 is designated as B, and calculating A-B result should screw tension adjustment screw 8 less than 0.3mm and loosen constant force stage clip 9 between 0.3mm and 0.5mm; Screw tension adjustment screw 8 tensioning constant force stage clips 9 greater than 0.5mm, make constant force stage clip 9 have certain pretightning force.
Shown in Figure 6; PLC carries out communication through RS232 port and Digital Servo Driver; Read the inner moment parameter of servo-driver; And increase KP, differential gain KD, storage gain KI parameter and servo-driver feedback moment value PV according to moment desired value SV, the ratio of touch-screen input and carry out the PID computing, realize that the oneself of PLC output pulse frequency control servomotor rotating speed adjusts, cut pressure stability thereby make.
Its operational formula is following:
Positivity bias E (t)=SV-PV, in reverse deviation E (t)=PV-SV formula: MV is the output speed value, and E (t) is a departure, and PV (t) S is the differential value of PV (t),
Integrated value for E (t).
The overall operation process is following: through touch-screen (HMI) input or directly relevant cutting feed speed, withdrawing speed, the elements of a fix, product specification, moment values in the call library, cut cutting parameters and relevant PID computing parameter such as quantity, insert parameters.Install material, open cooling and main shaft, start operation; Control able to programme (PLC) control servo longitudinal drives length feed slide plate 1 and drives and cut feeding seat 18 and move to and cut the position; Cut feeding balladeur train 11 and move up along guide rail 2, control able to programme simultaneously (PLC) starts the PID operational order, when the cutting edge of cutting blade 13 does not cut to material; Servo-driver feedback moment value PV is minimum, cuts the feed servo motor by setting the operation of feed speed value; When the cutting edge at cutting blade 13 cuts to material; Servo-driver feedback moment value PV also changes thereupon; Control able to programme (PLC) increases KP, differential gain KD, storage gain KI parameter and servo-driver feedback moment value PV according to moment desired value SV, the ratio of touch-screen (HMI) input and carries out the PID computing, realizes that the control of PLC output pulse frequency cuts oneself's adjustment of feed servo motor speed, finally cuts the feed servo rotating speed of motor through change and makes and cut pressure and remain on stable scope; Meanwhile when cutting pressure when surpassing the pretightning force of constant force stage clip 9; Constant force stage clip 9 produces compression, and driven belt wheel shaft 10 descends with driven pulley 7 thereupon, and driving-belt 6 loosens; The cutting edge of cutting blade 13 and material cut pressure to be reduced thereupon, thereby guarantees to cut the unanimity of pressure.Control able to programme (PLC) stops the PID operational order after cutting completion, cuts the feed servo motor and accomplishes withdrawing with high rotating speed, prepares to cut next time.
Owing to adopted adaptive PID method for control speed and equalization of strain mechanism, guarantee in working angles, can be directed against material hardness, the performance of blade own, stressed variation and cut with ideal velocity.Adaptive self-regulating process is accomplished by control system and equalization of strain mechanism automatically, and its process receives artificial factor affecting few, simple to operate.Section speed is that one of routine arrives twice, and thickness of product tolerance, the depth of parallelism, deflection, fineness, blade all are significantly improved service life.In following condition, 2880 rev/mins of the speeds of mainshaft are used 246 blades, and cooling fluid is No. 85%0 diesel oil, 15% rapeseed oil, temperature 25C.To 38C., the round 0.03mm that beats in the blade cutting edge, blade cutting edge end face run-out 0.01mm; Blade internal diameter tensor 0.28mm cuts the N46H neodymium iron boron, the thinnest 0.08mm that switches to; Speed reaches 18Cm2/ minute; Blade life is conventional more than 1 times, and the speed of using 20Cm2/ minute cuts 1mm * 50mm * 40mm square, and the depth of parallelism of product, thickness deviation, linearity are all in ± 0.005mm.
Shown in Figure 5; At both sides that cut feeding balladeur train 11 and top left bottom knife 20, upper left blade 22, upper right blade 24, the bottom right blade 25 installed on skid bed 19, upper left skid bed 21, upper right skid bed 23, bottom right skid bed 26 and the corresponding main shaft cutterhead with it under the left side are installed simultaneously and are constituted the layout type that four blade cuts simultaneously; Also can left bottom knife 20, the bottom right blade 25 that install on skid bed 19, bottom right skid bed 26 and the corresponding main shaft cutterhead with it down on a left side be installed cutting feeding balladeur train 11 both sides, or the upper left blade of installing on upper left skid bed 21, upper right skid bed 23 and the corresponding main shaft cutterhead with it 22, the layout that upper right blade 24 formation double-poles cut simultaneously be installed cutting feeding balladeur train 11 tops.Not only reduce the equipment input cost but also enhance productivity, reduce labour intensity and the few advantage of area occupied in the use.
Through inventor's test, adopt the mode slice efficiency of present embodiment to improve 100%-200% than traditional approach, single unit head (also claiming bit or cutter head) economize on electricity 72%, cold oil consumption descends 72%, and the blade consuming cost descends 72%.
Second embodiment of the invention is a kind of inside diameter slicer, and in the present embodiment, inside diameter slicer comprises frame and unit head (also claiming bit or cutter head), and unit head is fixedly connected with frame, and unit head is provided with interior round cutting-off tool; This inside diameter slicer also comprises flexible automatic feeding device, flexible automatic feeding device material folding unit and feed unit, and act on the Flexible element between material folding parts and the infeed mean.Said feed unit further comprises driver part, guiding parts, and said driver part comprises a cog belt.Said feed unit further comprises driver part, guiding parts; Said guiding parts has linear guide elements; The direction that is provided with of linear guide elements is more than or equal to 75 ° for the angle with horizontal direction, and less than 90 °, this angle is 82.5 ° in the present embodiment.Said Flexible element comprises the compression spring, and the set screw nail that is used to regulate the compression initial tension of spring.With reference to first embodiment of the present invention, be easy to realize present embodiment, no longer repeat to state and retouch.
Claims (5)
1. inside diameter slicer flexible automatic feeding device; Comprise the control system and transmission mechanism, tension balance device mechanism and the driving-belt bindiny mechanism that constitute by touch-screen (HMI), Programmable Logic Controller (PLC), Digital Servo Driver, it is characterized in that follower shaft (10) is installed in the chute that cuts feeding seat (18) top, is connected by tension adjustment screw (8); Constant force stage clip (9) is sleeved on tension adjustment screw (8) and cuts between the pressure spring slot at feeding seat (18) top; Set the pretightning force of constant force stage clip (9), when cutting pressure when surpassing the pretightning force of constant force stage clip (9), constant force stage clip (9) produces compression; Driven belt wheel shaft (10) and driven pulley (7) descend thereupon; Driving-belt (6) loosens, and the cutting edge of cutting blade (13) and material cut pressure to be reduced thereupon, thereby guarantees to cut the unanimity of pressure.
2. inside diameter slicer flexible automatic feeding device according to claim 1; It is characterized in that cutting the feed servo motor by control system control; Drive drive pulley (3) rotation through accurate reductor; Drive driving-belt (6) around driven pulley (7) motion, driving-belt bindiny mechanism drives and cuts feeding balladeur train (11) and move up and down along guide rail (2) and realize cutting feeding and withdrawing.
3. inside diameter slicer flexible automatic feeding device according to claim 2; It is characterized in that the control system carries out the PID computing according to moment desired value SV, proportional gain KP, differential gain KD, storage gain KI parameter and the servo-driver feedback moment value PV of touch-screen input, make Programmable Logic Controller (PLC) output pulse frequency control servomotor rotating speed carry out oneself's adjustment and keep cutting pressure stability according to feedback moment value PV.
4. inside diameter slicer flexible automatic feeding device according to claim 2; It is characterized in that guide rail (2) is installed in cuts the symmetrical two sides of feeding seat (18); And be parallel to the axis that cuts feeding seat (18); The axis becomes angle β with the datum level of length feed slide plate (1), angle β less than 90 ° more than or equal to 75 °.
5. inside diameter slicer flexible automatic feeding device according to claim 2; It is characterized in that at both sides that cut feeding balladeur train (11) and top left bottom knife (20), upper left blade (22), upper right blade (24), the bottom right blade (25) installed on skid bed (19), upper left skid bed (21), upper right skid bed (23), bottom right skid bed (26) and the corresponding main shaft cutterhead with it under the left side being installed simultaneously constitutes the layout type that four blade cuts simultaneously; Or left bottom knife (20), the bottom right blade (25) that install on skid bed (19), bottom right skid bed (26) and the corresponding main shaft cutterhead with it down on a left side is installed cutting feeding balladeur train (11) both sides, or the upper left blade of installing on upper left skid bed (21), upper right skid bed (23) and the corresponding main shaft cutterhead with it (22), the layout that upper right blade (24) formation double-pole cuts simultaneously are installed cutting feeding balladeur train (11) top.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101937386A CN101885085B (en) | 2010-06-07 | 2010-06-07 | Inside diameter slicer and flexible automatic feeding device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101937386A CN101885085B (en) | 2010-06-07 | 2010-06-07 | Inside diameter slicer and flexible automatic feeding device thereof |
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| CN101885085A CN101885085A (en) | 2010-11-17 |
| CN101885085B true CN101885085B (en) | 2012-04-04 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102151889B (en) * | 2011-01-28 | 2012-10-31 | 宁波市江北港联铁山磁材加工设备有限公司 | Upward cutting and energy-saving inner circle slicing machine with single tool bit |
| CN104149205B (en) * | 2014-08-15 | 2016-04-06 | 福建万龙金刚石工具有限公司 | Wide span bridge type intelligence cuts cubic meter of stone method and stonecutter thereof |
| CN113102820A (en) * | 2021-04-07 | 2021-07-13 | 山西汾西重工有限责任公司 | Cutting device for inner circle of shell |
| CN114932987B (en) * | 2022-01-21 | 2024-04-16 | 上海东欣软件工程有限公司 | Automatic ship plate nesting realization method and automatic nesting platform for SPD system |
| CN114682833B (en) * | 2022-06-01 | 2022-08-19 | 徐州威聚电子材料有限公司 | High-hardness plate pressure control type milling device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3060445B2 (en) * | 1992-07-16 | 2000-07-10 | 株式会社東京精密 | Semiconductor wafer slicing method and apparatus |
| JPH06344333A (en) * | 1993-06-07 | 1994-12-20 | Komatsu Ltd | Work support device of slicing machine |
| CN2848507Y (en) * | 2005-08-25 | 2006-12-20 | 上海汇盛电子机械设备有限公司 | Cutter feeding and backing buffer device of slicer |
| CN201329448Y (en) * | 2008-12-24 | 2009-10-21 | 陈厚樟 | Inside diameter slicer with multiple knife heads |
| CN201366730Y (en) * | 2009-02-20 | 2009-12-23 | 褚留顺 | Cut buffering and constant pressure device of slicing machine |
| CN101745992B (en) * | 2009-12-07 | 2012-07-18 | 杨潇 | Elastic buffering feeding device of inner diameter slicing machine and feeding method thereof |
| CN201728416U (en) * | 2010-06-07 | 2011-02-02 | 谢展鹏 | Inner circle slicing machine and flexible automatic feeding device thereof |
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Granted publication date: 20120404 Termination date: 20160607 |