![]() The shear packet
专利摘要:
公开号:AT510053A1 申请号:T9842010 申请日:2010-06-15 公开日:2012-01-15 发明作者: 申请人:Atm Recyclingsystems Gmbh; IPC主号:
专利说明:
1 Scarlet tweaking press The invention relates to a Scherpaketierpresse, comprising a lateral supercharger, which is slidably mounted along a plane, a head-side press cover, which is pivotally mounted to the plane to at least an upper edge of the lateral supercharger, a feed plunger perpendicular to the lateral supercharger under the pivoted-in press cover is slidably mounted and arranged in alignment in a direction of displacement of the feed punch, perpendicular to this up and retractable hold-down, a hold-down in the direction of the feed punch downstream, also vertically up and lowerable shear bar, and a pressing space by a maximum deflection position of the lateral pre-compressor and a deflection position of the pivoted-in press cover and a starting position of the feed punch and a starting position of the blank holder is defined. Scherpaketierpressen this type is known from the prior art, for example from DE 102 12 730 A1 or DE 34 39 002 A1. Such Scherpaketierpressen be used in the processing of scrap or general metallic waste. Two types of operation are possible: On the one hand, such shear packetizing presses allow pre-compacting metallic wastes in a press room by means of a lateral pre-compressor and a press cover and a feed punch, after which the pre-compacted material passes through the feed punch in the direction of a hold-down and a subsequent shear bar for a predetermined Distance is pushed so that the rather loosely pre-compacted, but self-supporting material protrudes at the end of Scherpaketierpresse. Subsequently, the hold-down and the shear bar are lowered, so that the hold-down holds the material, whereas the shear bar separates a sub-strand whose length corresponds to a distance from a knife of the shear bar to a front end of the strand. On the other hand, a packaging function is possible. This is precompressed analogously by means of the lateral supercharger and the press cover, but then the feed punch is moved so far with the shear bar down, until the feed punch in the amount of the feed punch facing end or side surface of the blank holder. The shear bar is in the lowered position and serves as a contact surface for a material to be compacted. 2 Then the hold-down is lowered. In this way, a package of, for example, scrap can be pressed which has a much higher density than merely sheared, less highly compressed strands. Which operating mode is used depends primarily on the type of material to be processed and its further determination. Known Scherpaketierpressen have the advantage that, as mentioned, two modes are possible. This means that only one device is needed to produce both sheared and packaged products or to be able to process metallic waste accordingly. However, this multifunctionality has the disadvantage that the packaging function only allows the production of low-density packets. Scherpaketierpressen are usually fed by means of an envelope dredger, which is controlled by an excavator driver. Metal waste to be processed is filled up to a certain height in a hopper, after which the actual processing steps can begin. It has been shown that in particular in the presence of bulky material often a compression by means of the lateral supercharger and the press cover is not so far possible that the lateral supercharger can fully advance and / or the press cover can be closed. It is then necessary to remove part of the metallic waste again, which lowers productivity. This is another disadvantage of known shear packetizing presses. The object of the invention is to eliminate or at least reduce the above disadvantages. This object is achieved if, in a Scherpaketierpresse of the type mentioned in the press room is formed relative to the plane with a recessed base. An advantage achieved by the invention is to be seen in that is always accurately guided by the recessed formation of the base of the pressing space of the feed punch on the side of the lateral supercharger, since regardless of a position of the lateral supercharger is a fixed vertical plane is given which of the 3 Advance punch during forward movement led to hold down out slides. As a result, it is possible for the feed punch to be displaced with high force or in the case of hydraulic actuation at high pressures, which makes it possible to produce packages with a high package density. Another advantage is the fact that the deepened formation of the base surface is given a conventional charging a buffer zone that is not or only slightly filled in the feed. Thus, even if too much metallic waste and / or bulky material has been filled in, it can escape into the recessed area of the pressing space during compression by the lateral supercharger and / or the press cover. Therefore, a Scherpaketierpresse invention also leads to a higher productivity than known Scherpaketierpressen, as overfilling is compensated. These advantages are also given when filling takes place via a conveyor belt or a tilting balance. Particularly preferably, it is provided that the recessed base is formed with grooves elongated in the direction of displacement of the feed punch, which preferably extend only to one end face of the hold-down device. Through the grooves, the z. B. can have a distance of 4 to 15 cm, is ensured, especially if small parts such as punching and / or cuttings of metallic sheets, which are larger than a selected groove pitch or a groove spacing, are processed, that in comparison with others metallic wastes do not wedge very small parts between the base and the feed punch, which would be extremely detrimental. The grooves can in principle be formed with an arbitrary cross section, but advantageously have a rectangular or trapezoidal cross section transverse to their longitudinal direction. No grooves are required in one area of the hold-down, since the feed-in punch usually does not reach this area in the possible operating modes. In this context, it is preferred that the feed punch is formed on the bottom side with a profile corresponding to the grooves and between the grooves ribs. As a result, or by a tooth system, an exact guidance of the feed punch can be further improved, in particular in the case of forward movement in the direction of the blank holder. In addition, the feed punch then fits perfectly with the profile or grooves and intervening ribs of the 4th Base area, so that no material between the base and the feed punch collect and / or can wedge. For analogous considerations, in particular a precise guide due, it can be provided that the lateral supercharger, a lateral supercharger opposite surface of the pressing chamber and the press cover are formed with further elongated grooves and ribs lying between the grooves, in a direction of displacement of the feed punch and run parallel to the grooves of the recessed base, and the feed punch is formed laterally and laterally with a profile corresponding to the grooves and ribs. In particular, for the processing of bulky metallic waste, it proves advantageous that the lateral supercharger comprises two separately hydraulically actuated piston and can be adjusted obliquely to the pressing space. As a result, in particular bulky constructions, in particular welded constructions, can advantageously be processed, for example by alternatively actuating the two hydraulically actuable pistons in order to press the bulky goods into the pressing space with alternately oblique positioning. In particular with regard to an exact guidance of the feed punch during packaging, where a predetermined end position should be exactly reached to ± 1 mm, it can preferably be provided that a displacement measuring system is integrated in a piston of the feed punch. A displacement measuring system integrated in the piston is advantageous insofar as the displacement measuring system is not exposed to high loads during use and in particular is protected against environmental influences. For similar considerations, it may be contemplated that the lateral supercharger comprises one or more pistons carried in cylinders, with stops being provided for the piston or pistons defining a maximum deflection position of the piston or pistons. This ensures that the lateral supercharger can not move so far that the advancing punch encounters the lateral supercharger during forward movement in the direction of the hold-down. »4 1 * ft ft * *» »« ft * * 4 * t * ft * t * «* * ft * l * * · · · · · tt I t · * * · ·« ft «ft ft * ft »ft * 5 It can also be provided that the press cover is formed with a detachably mounted knife, which is arranged to extend in the front side and along the press cover parallel to the direction of displacement of the feed punch. As a result, when bulky goods are used, they can be cut when the press cover pivots in. The Scherpaketierpresse invention is preferably formed despite high performance as a transportable unit and can be releasably secured for this purpose on a substantially rectangular frame. So that a functionality of the Scherpaketierpresse is extended, it can be provided that the hold-down is formed at an end facing the pressing space with a replaceable first use. By way of example, the first insert can have projecting and recessed areas towards the pressing space in order to ensure a high edge density of a parcel and thus a stability thereof, in particular when small-sized metal wastes are processed. For this purpose, it may be expedient that the first insert has a zigzag pattern in cross section. It is also possible that a second insert is provided, against which the first insert is exchangeable, wherein the second insert has a projecting, directed towards the pressing space wedge. Such an insert can then be used when cast-breaking or breaking rails are to be performed. For processing larger sheets, it is expedient that the press cover is formed following a rotation axis on a surface facing the pressing space in a first region with grooves, to which in a second region to one end of the press cover towards a sawtooth profiling of the surface followed. A device according to the invention is suitable for processing any metallic waste, but is particularly preferably used for pressing punching and / or cutting waste, in particular from metallic sheets, especially if an average dimension of the metallic waste is less than 20 cm. »·« · · «·« · »· ·« * · · ** * · I · · · I I I f I · 6 Further features, advantages and effects of the invention will become apparent from the embodiment illustrated below. In the drawings, to which reference is made in this connection, show: Fig. 1 is a perspective view of a Scherpaketierpresse; FIG. 2 shows a schematic illustration of a region of a pressing space and a feeding punch; FIG. 3 shows a schematic cross-section perpendicular to a direction of displacement of a feed punch, wherein a lateral pre-compressor and a press cover are in a starting position; 4 shows an illustration according to FIG. 3, wherein the lateral pre-compressor and the press cover are in an end position; Fig. 5 is an illustration of a piston with an integrated displacement measuring system. In Fig. 1, a Scherpaketierpresse invention 1 is shown in more detail in a perspective view. The Scherpaketierpresse 1 is detachably mounted on a rectangular frame 8. The frame 8 is formed from I-beams of a steel and forms a secure support for the Scherpaketierpresse. 1 The Scherpaketierpresse 1 comprises a lateral supercharger 2, which is arranged hydraulically actuated by two end of the lateral supercharger 2 and guided in cylinders 24 piston. The lateral supercharger 2 is mounted so that it can move even when only one of the pistons, optionally alternately with the other piston, is actuated. The lateral supercharger 2 can thus also be moved obliquely forward. In addition to the lateral supercharger 2, a feed punch 4 is provided, which is perpendicular to the lateral supercharger 2 (actuation of both pistons assuming) up to an end face 51 of a blank holder 5 is displaceable. In addition, a press cover 3 is provided, which can be pivoted to a plane 21, along which the lateral supercharger 2 is displaceable, to an upper edge of the lateral supercharger 2 about a lateral pivot axis. Furthermore, the mentioned hold-down device 5 and a down-shear 5 downstream shear bar 6 is provided, which is end equipped with a shearing blade. A funnel (part) 9, under which the lateral supercharger 2 is displaceable, is arranged in a stationary manner. » The lateral supercharger 2, the press cover 3, the feed punch 4, the hold-down 5 and the shear bar 6 are each equipped with one or more piston-cylinder units that can be moved by applying oil from a hydraulic system, not shown. The hydraulic system is constructed so that it comprises a plurality of juxtaposed pumps (eg, two to ten pumps), which are additively interconnected if necessary, to produce a required pressure on one of said components. As a result, an amount of oil adapted to a cylinder volume can be supplied to the respective component in an economical manner and an optimum cylinder speed can be set on the said component, which can vary significantly depending on the operating mode. In the center of the Scherpaketierpresse 1 a pressing space 7 is formed. This pressing space 7 is limited by the feed punch 4 in its initial position shown in Fig. 1 end. Laterally, the pressing space 7 is limited by a surface 73 opposite the lateral supercharger 2 and the lateral supercharger 2 when the lateral supercharger 2 is in an end position or maximum deflection position. At the opposite side of the feed punch 4 side, viewed in the direction of the feed punch 4, the pressing chamber 7 may be completed depending on the mode by the shear bar 6 or the hold-5 in a low-moved position, z. As the shear bar 6 when packaging or the hold-5 with a low pre-compression during shearing. In principle, however, the pressing space 3 can also remain open in the shear insert at the end if no precompression takes place. A recessed to the plane 21 base 71 of the pressing chamber 7, whose lateral connection surface to the lateral supercharger 2 also mitdefiniert the pressing space 7 is formed with grooves 72 which extend continuously along a direction of displacement of the feed punch 4, which can be seen in Fig. 2. The grooves 72 or intermediate ribs extend from the starting position of the feed punch 4 according to FIG. 1 as far as an end face 51 of the hold-down 5 which is closest to the feed punch 4. That region of the pressing space 7, which lies exactly below the hold-down 5, is formed with grooves or rib-free. * * * * # * ♦ # ♦ # * * * »» »· · · * * · · · ·» I · i ι * · · 8 The feed punch 4 has on the bottom side a profile which corresponds to the grooves 72 and ribs. The grooves 72 are in cross section, viewed perpendicular to a displacement direction of the feed punch 4, preferably formed with a rectangular cross-section. In addition, corresponding further grooves 23, 31, 74 are provided on the lateral supercharger 2, on this opposite surface 73 and on the press cover 3, which can be seen in FIGS. 3 and 4. The feed punch 4 is, apart from its bottom-side area, also formed laterally and in the head-side area with a corresponding profile. This ensures that the feed punch 4 can be guided exactly when the lateral supercharger 2 is extended and the press cover 3 pivoted in, even at particularly high pressures, as are required for packaging scrap to high density. The press cover 3 has, in addition to the grooves 31, which are arranged only in parallel in the transverse direction as far as the pressing space 7 is completed, a sawtooth profile 33. This sawtooth profile 33 proves to be useful when longer metal sheets are to be pressed. The sheets can then be inserted obliquely before closing the press cover 3, as shown in Fig. 3 by the dotted line. The inserted sheet is then bent during pivoting of the press cover 3 so that it lies completely in the pressing chamber 7. Without a sawtooth profile, on the other hand, especially with flat objects such as metal sheets, the sheets may slide off the press cover 3 and ultimately protrude from the press room 7, which necessitates interruption and removal of the metal sheet and subsequent insertion thereof. Moreover, as can be seen in FIGS. 3 and 4, the base surface 71 of the pressing space 7 is lowered relative to the plane 21 along which the lateral supercharger 2 is movable. As a result, in addition to the intended toothing by means of the grooves 72 and further grooves 23, 31, 74 and respectively intermediate ribs an exact guidance of the feed punch 4 even at high pressures, especially in a packaging possible. In addition, the recessed formation of the base 71 ensures a material relief in a pre-compression by means of the lateral pre-compressor 2 and the press cover 3. Although the depression may be formed with small dimensions and, for example, only up to 10 cm or at most 15 cm, thereby a stable leadership of the feed punch 4 can be achieved, which the application of high pressures and thus the achievement of high packet densities in the 9th Paketierbetrieb allows. Further, the recessed formation of the base 71 provides when filling a material or feeding the Scherpaketierpresse 1 for a material relief, since the baling chamber is usually not or only partially filled in the recessed area - due to the usually bulky metallic waste. Thus, a certain buffer area is given, in which the material can move during advancement of the lateral pre-compressor 2 or pivoting of the press cover 3, which would not be possible with a design of the base 71 without depression or at the same level following the plane 21. In order to enable in particular a processing of bulky goods, such as metallic pipes, the press cover 3 may also be formed with a knife 32 which is arranged at the end and extends substantially parallel to a length corresponding to the grooves 72. The knife 32 cooperates with an upper surface 22 of the lateral supercharger 2. The hold-down device 5 may be formed on a pressing space 7 facing the end with interchangeable inserts. For example, several inserts may be provided, which are attached to the hold-down 5 mutually releasably as needed or depending on the operational use. In particular, a first use may be provided which has a profiled profile, z. B. ribs and intervening grooves, and a second insert having a one of a plane of the insert to the pressing chamber 7 projecting Kerbmesser. The first use is mainly used in the pressing of small parts, since the profiled insert provides for embossing on a surface of a package, which provides a higher edge density and thus package stability and especially for small metal parts such as chips or punching and / or cutting waste, which come from a processing of metallic sheets, is favorable. The second use is mainly used when castings are to be broken. In addition, a rail breaking is possible: When rail breaking the notching knife is used to introduce a notch, then subsequently, after exact feed, the notching knife of the shearbar 6 can engage to break off a part of a casting. • • • • • 10 Are interchangeable inserts provided for the hold-5, the Scherpaketierpresse 1 according to the invention can fulfill four functions or four modes are possible: - Shearing of less compacted material; - Paktieren to high density; - casting breakage; - Rail breaking. This multifunctionality is particularly favorable for the processing of scrap metal on smaller scrap sites, where not for each individual purpose own device or machine can be purchased. For example, packages with a density of up to 3 kg / cm3 can be pressed on the one side, but also broken rails that occur from time to time on the other side. In addition, a Scherpaketierpresse invention is equipped with a controller that z. For example, a creation of longer or shorter packages is automatically allowed. In particular, when a Scherpaketierpresse 1 is used for packaging or in Paketiermodus or even during rail breaking, it is necessary that the feed punch 4 is approached particularly accurately to the hold-5 or moved forward. For this purpose it can be provided, as can be seen in FIG. 5, that the feed punch 4 is formed with a path measuring system 42 which is arranged in an interior of a piston 41 of the feed punch 4. The displacement measuring system 42 comprises a magnet 43 and a rod 44 positioned in a hollow interior of the piston 41. The magnet 43 is fixedly connected to the piston 41 so that the magnet 43 is simultaneously moved relative to the rod 44 when the piston 41 moves. This makes it possible to detect a position of the piston 41 by magnetostrictive measurement. By detecting the measurement results and appropriate control of the feed punch 4 can be approached very precisely to the hold-5.
权利要求:
Claims (16) [1] 1. Scherpaketierpresse (1), comprising a lateral supercharger (2), which is displaceably mounted along a plane (21), a head-side press cover (3), which is pivotally mounted to the plane (21) to at least to an upper edge (22) of the lateral supercharger (2), a feed punch (4) perpendicular to the lateral supercharger (2) under the pivoted-in press cover (3 ) is slidably mounted, and an aligned in a direction of displacement of the feed punch (4) arranged perpendicular to this up and down retractable hold-down (5), a down the holder (5) in the direction of the feed punch (4) downstream, also vertically up and down A shear bar (6), and a pressing space (7) by a maximum deflection position of the lateral supercharger (2) and a deflection position of the pivoted-in press cover (3) and an output position of the feed punch (4) and a starting position of the hold-down (5) is defined, characterized in that the pressing space (7) relative to the plane (21) is formed with a recessed base (71). [2] 2. Scherpaketierpresse (1) according to claim 1, characterized in that the recessed base (71) in the direction of displacement of the feed punch (4) elongated grooves (72) is ausgebiidet, preferably only up to an end face (51) of the blank holder ( 5) extend. [3] 3. Scherpaketierpresse (1) according to claim 2, characterized in that the grooves (72) transversely to the longitudinal direction thereof have a rectangular or trapezoidal cross-section. [4] 4. Scherpaketierpresse (1) according to claim 2 or 3, characterized in that the feed punch (4) is formed on the bottom side with a to the grooves (72) and lying between the grooves ribs corresponding profile. [5] 5. Scherpaketierpresse (1) according to one of claims 2 to 4, characterized in that the lateral supercharger (2), a side of the supercharger (2) opposite surface (73) of the pressing space (7) and the press cover (3) with further elongate grooves (23, 74, 31) and ribs between the grooves • »* · · · · · · · · · · · · · · · · · · · ·········································································. Are formed, which extend in a direction of displacement of the feed punch (4) and parallel to the grooves (72) of the recessed base (71), and the feed punch (4) laterally and head with a to the grooves (23, 74, 31) and the ribs corresponding profile is formed. [6] 6. Scherpaketierpresse (1) according to one of claims 1 to 5, characterized in that the lateral supercharger (2) comprises two separately hydraulically actuated piston and obliquely to the pressing space (7) is adjustable. [7] 7. Scherpaketierpresse (1) according to one of claims 1 to 6, characterized in that in a piston (41) of the feed punch (4), a displacement measuring system (42) is integrated. [8] 8. Scherpaketierpresse (1) according to one of claims 1 to 7, characterized in that the lateral supercharger (2) comprises one or more pistons which are guided in cylinders, wherein stops are provided for the piston or pistons, the maximum deflection position of the piston or pistons. [9] 9. Scherpaketierpresse (1) according to one of claims 1 to 8, characterized in that the press cover (3) is formed with a releasably mounted blade (32), the front side and along the press cover (3) parallel to the direction of displacement of the feed punch (4th ) is arranged running. [10] 10. Scherpaketierpresse (1) according to one of claims 1 to 9, characterized in that the Scherpaketierpresse (1) on a substantially rectangular frame (8) is releasably attached. [11] 11. Scherpaketierpresse (1) according to one of claims 1 to 10, characterized in that the holding-down device (5) is formed on a pressing space (7) facing the end with a replaceable first use. [12] 12. Scherpaketierpresse (1) according to claim 11, characterized in that the first insert to the pressing space (7) has projecting and recessed areas. 13 [13] 13. Scherpaketierpresse (1) according to claim 11 or 12, characterized in that the first insert has a zig-zag pattern in cross section. [14] 14. Scherpaketierpresse (1) according to any one of claims 11 to 13, characterized 5, characterized in that a second insert is provided, against which the first insert is interchangeable, wherein the second insert has a projecting, the pressing space (7) directed towards wedge. [15] 15. Scherpaketierpresse (1) according to one of claims 1 to 14, characterized in that the press cover (3) is formed following a pivot axis on a press room (7) facing surface in a first region with grooves (31) at which in a second area to one end of the press cover (3) towards a sawtooth profiling of the surface connects. [16] 16. Use of a Scherpaketierpresse (1) according to one of claims 1 to 15 for pressing metallic waste from punching and / or cutting operations, in particular waste from a punching and / or cutting metal sheets.
类似技术:
公开号 | 公开日 | 专利标题 DE2423003C3|1979-04-12|Hydraulically driven scrap shears EP1820631B1|2010-05-26|Press for processing any type of material DE2739825C3|1981-05-14|Scrap shears DE2914402C2|1991-07-04| AT510053B1|2013-04-15|The shear packet EP0179222A1|1986-04-30|Scrap shearing machine DE2317632A1|1974-10-17|PRESS FOR MANUFACTURING BALES FROM RECEIVED MATERIAL DE2727436A1|1979-01-04|SCRAP SHEARS DE102012021153C5|2021-01-14|Channel baling press with optimized escape space DE112004000455B4|2013-05-16|Blisterentleermaschine DE2316250C2|1986-07-10|Method and device for pressing molded parts with vertical or almost vertical molded sections or edges made of cellulosic fibrous materials and a binding agent DE19706231C1|1998-07-02|Cutter for use with food products EP1323518B1|2006-05-24|Hydraulic pressing apparatus DE3625336C2|1992-12-24| DE1752244B2|1973-09-13|Hydraulic scrap shears with a side pressure press that compresses the scrap laterally EP3006195A1|2016-04-13|Device for briquetting materials DE102018133264B4|2020-11-05|Packing press and method for packing deformable material DE2915966A1|1980-11-06|Compression force measuring device for hydraulic press - uses two symmetrically-spaced pressure capsules or expansion strips DE2453756C3|1977-10-27|Scrap shears AT501238A1|2006-07-15|METHOD, APPARATUS AND APPARATUS FOR WELDING ELEMENTS ACCORDING TO THE REFRIGERATION WELDING METHOD AT217832B|1961-10-25|Scrap shears DE2654751C3|1982-01-14|Scrap shears WO1984000715A1|1984-03-01|Device for cutting boards or similar objects DE3223382A1|1983-12-29|Shears for severing any type of material DE2453756A1|1976-05-20|Scrap metal compressor and cutter - has chute for receiving scrap metal which has compacting means for feeding pieces to cutting head
同族专利:
公开号 | 公开日 EP2397316A2|2011-12-21| AT510053B1|2013-04-15| EP2397316A3|2012-11-07|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 DE202015102730U1|2015-05-27|2016-08-31|Autefa Solutions Germany Gmbh|filling|GB669708A|1949-04-25|1952-04-09|Dempster Brothers Inc|Improvements in baling presses| GB1200043A|1968-01-27|1970-07-29|Helmut Schonauer|Scrap shearing apparatus| DE2056715C2|1970-11-18|1987-10-08|Lindemann Maschinenfabrik Gmbh, 4000 Duesseldorf, De| DE3048843A1|1980-12-23|1982-07-15|Wilfried 4402 Greven Pietschner|Scrap metal compacting and shearing unit - has ram in compacting chamber and stop swivelled over shearing channel during ram stroke| DE3439002C2|1984-10-25|1987-06-11|Lindemann Maschinenfabrik Gmbh, 4000 Duesseldorf, De| BE1011514A3|1997-10-27|1999-10-05|Envirco S A Succursale Suisse|Method for processing oil filters.| DE19804789B4|1998-02-06|2004-04-08|Metso Lindemann Gmbh|Process for the production of compacts by means of a shear packet press and a shear packet press for carrying out the method| DE10212730A1|2002-03-21|2004-02-12|Metso Lindemann Gmbh|Press for processing any kind of material| DE102005018928A1|2005-04-22|2006-10-26|Metso Lindemann Gmbh|Press for processing material of any kind with swivel press wing and press cover|DE102018133264B4|2018-12-20|2020-11-05|Andreas Heinen|Packing press and method for packing deformable material|
法律状态:
2020-02-15| MM01| Lapse because of not paying annual fees|Effective date: 20190615 |
优先权:
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申请号 | 申请日 | 专利标题 AT9842010A|AT510053B1|2010-06-15|2010-06-15|The shear packet|AT9842010A| AT510053B1|2010-06-15|2010-06-15|The shear packet| EP11165252A| EP2397316A3|2010-06-15|2011-05-09|Compacting and shearing press| 相关专利
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