US3358328A - Annular press device - Google Patents

Annular press device Download PDF

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Publication number
US3358328A
US3358328A US540393A US54039366A US3358328A US 3358328 A US3358328 A US 3358328A US 540393 A US540393 A US 540393A US 54039366 A US54039366 A US 54039366A US 3358328 A US3358328 A US 3358328A
Authority
US
United States
Prior art keywords
end wall
wall member
pulley
press
coupling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US540393A
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English (en)
Inventor
Kuhn Reinhard
Hafliger Albert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Buehler AG
Original Assignee
Buehler AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Buehler AG filed Critical Buehler AG
Application granted granted Critical
Publication of US3358328A publication Critical patent/US3358328A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/20—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring
    • B30B11/201—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring for extruding material
    • B30B11/202—Ring constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/026—Mounting of dies, platens or press rams
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/23—Hay wafering or pelletizing means

Definitions

  • An annular press mold includes a shaft, an end wall member mounted on the shaft and closing one end of a press ring and a member carried on the end of a shaft within the press ring carrying one or more rollers which are adapted to move around the interior surface of the press ring to press material through openings extending radially outwardly through the annular press ring wall.
  • the press ring is held to the end wall member by one or more securing bolts which extend axially. Rotation is imparted either through the end wall member with the press ring or directly to the shaft and the roller members.
  • a feature of the construction is the provision of coupling elements which extend axially outwardly away from the securing bolts for the press ring, and, either completely through openings of the driving pulley, or extend up to such openings in order that the bolts may be easily engaged from the side of the pulley which is opposite to the location of the press ring.
  • This invention relates, in general, to the construction of annular pressing molds and, in particular, to a new and useful annular pressing mold having a press ring or annular die member and a plurality of rollers for pressing materials against the interior surface of the press ring which is relatively movable in respect thereto and including an improved coupling means for afiixing and releasing the press ring.
  • Annular pressing molds usually comprise a central shaft carrying the roller pressing element which is rotatably mounted relative to the surrounding press ring and end housing or end wall portion of the mold.
  • the press ring is aifixed to the end housing portion such as with threaded ecuring bolts.
  • the construction required a large-shaft driving pulley for imparting rotation either to the shaft or the press ring and housing which is most advantageously mounted between a fixed pedestal and the end wall portion. With such a construction, it is difficult to affix and remove the annular pressing mold to the end housing portion because the driving pulley is located such that the bolts become substantially inaccessible or accessible only with great difficulty.
  • a coupling member which may be selectively engaged or disengaged with the securing studs for the annular mold which are located in bores defined in the end housing portion.
  • a coupling member comprises an element which is advantageously mounted in the driving pulley and which may be moved axially from the accessible side of the pulley to engage a securing stud on the opposite side. It includes an outer head portion which may be engaged by a tool for the purpose of rotating the coupling member to unscrew the holding bolts.
  • the coupling member is mounted on a fixed element
  • the coupling may be mounted on a fixed extension of the end wall portion and the driving pulley is provided with an annular access opening for engaging the coupling.
  • a sepa rate permanently aligned coupling is provided for each bolt.
  • the coupling member advantageously is an elongated coupling tool which is rotatably mounted in its holding member. It includes at one end a socket of a configuration of the bolt head which are to be loosened and at the opposite end for engagement thereof in the manner of a socket wrench.
  • the coupling includes a head comparable to the head of the bolt for engagement by a turning tool.
  • annular press mold having a press ring which is mounted on an end wall portion by means of securing bolts and which is relatively rotatable in respect to rollers which are located on the interior of the press ring and with coupling means for facilitating the tighening and removal of the securing bolts.
  • a further object of the invention is to provide annular press molds which include a shaft driving a plurality of rollers which are adapted to cooperate with the interior surface of the annular press mold member for pressing materials through openings in the press mold member and which includes a driving pulley which is mounted on the shaft for rotating the annular press mold member and associated end wall to which it is secured relatively to the revolving movement of the rollers on the interior of the press mold member and with coupling means located around the shaft for securing and releasing threaded bolts holding the annular mold which permits the easy installation or removal thereof.
  • a further object of the invention is to provide an annular press mold which is simple in design, rugged in construction, and economical to manufacture.
  • FIG. 1 is a longitudinal sectional view of a feed pellet press having a stationary mold ring and a revolving coupling element constructed in accordance with the invention
  • FIG. 2 is a view similar to FIG. 1 of another embodiment of the invention with a rotating mold ring;
  • FIG. 3 is a view similar to FIG. 1 of still another embodiment of the invention with a stationary mold ring.
  • FIG. 1 the invention embodied therein as indicated in FIG. 1 includes a feed pellet press generally designated 40, which in the embodiment illustrated, includes a mounting stand generally designated 42, having a mounting base with a platform portion 44 which rests on the ground 46 and which includes a spaced upright pedestal 48 at one end and an end housing portion or pedestal 50 at the opposite end.
  • a feed pellet press generally designated 40, which in the embodiment illustrated, includes a mounting stand generally designated 42, having a mounting base with a platform portion 44 which rests on the ground 46 and which includes a spaced upright pedestal 48 at one end and an end housing portion or pedestal 50 at the opposite end.
  • a driving shaft 26 is rotatably mounted in bearings 52 and 54 in an annular bearing portion 36 and an end housing I portion 6, respectively.
  • the driving shaft 26 carries an end plate or press plate 56 having a plurality of rollers 8 which are rotatably mounted on respective axial extensions 58 and 60 of the plate 56.
  • the rollers 58 and 60 rotate around to cause materialdelivered through a hopper or inlet 25 to be pressed against an annular presser plate 5, which is secured to the end housing portion 6 by means of aplurality of securing bolts'4.
  • the presser plate ineludes. openings or through holes 5a through which the material being press molded is directed.
  • the drive shaft 26 is rotated by means of a driving pulley generally designated 9 which includes a hub portion 9a which is keyed to the shaft 26.
  • the pulley 9 is rotated by'drivingbelts 62 to cause a rotation of the disk member 56 and a'revolving of the rollers 8 to press mold materials introduced" through hopper 25 against the interior surface of the press mold 5 and out through the openings 5a.
  • means are provided for facilitating the aifixing and/ or removal of the annul-ar press plate 5.
  • Such means provide access to the securing studs or bolts 4. despite the proximity of the driving pulley 9 and, include a coupling element generally designated 1 which includes a central smooth shank portion 1a which is rotatable and slideable within a bore defined in an annular Web portion or spoke 9b of the pulley 9.
  • the coupling element 1 is provided with an abutment 1b adjacent one end which limits the outward movement thereof and an abutment 1c adjacent the opposite end which limits the inward movement thereof.
  • a compression spring 1 1 - is biased between the spoke portion 9b and an abutment lc to urge; the coupling 1 out ofcontact with the studs 4.
  • the inner end of the coupling elementl includes a head portion 14 having a socket 2; of. aconfiguration complementary to the configurationv of; the bolt head 4.
  • An opposite end is provided with abolt head formation 3 which is of a configuration comparable to the bolthead or to the configurationv of 'asocketof a turning tool which may be used with the device.
  • the power screw driver for example, on the head 3 and then to push the coupling element 1 inwardly against the force of the spring 11. This inward movement is done until the socket portion 1d engages over the head 4 of-the securing bolt.
  • the power tool is then started to rotate the coupling l in a direction to unthread the bolt from the annular press member- 5.
  • the annular member 5 may be lifted away from thestationary housing portion 6 together with the hopper member 56! for cooperation withthe interior of the annular member or press ring 5 which together with the endwall portion 7 is rotated.
  • thedriving wheel or pulley 9. is formed integrally with theend wall portion 7 and it is rotated by driving belts 625 to causev rotation of the annular ring memberS which is atfixed to the endwall portion 7 by the bolts 4.
  • a support is provided with a bore; 10 in which is slidable a coupling member 1;
  • Coupling-member 1' is similar to that of the other embodiment withthe exceptionthat it is longer and the construction includes acornpression springll' which is compressed between the end of the support 15 and the collar 10.
  • the coupling element 1. when not in use will be moved backwardly to the'right from the position indicated to a position in which an actuator 17 will rest in a groove 20' defined in the coupling.
  • a proper portion of the stationary member 7 is aligned through the opening 19 defined in the pulley 9 with a bolt then a turning motor 43 may be pressed into engagement with the head 3'.
  • the actuator 17 will then ride out of the groove 20 and in so doing will cause a flat upper portion 18 thereof to move off an actuator of a switch 16 for stopping the rotation of the pulley 9' through the 'belt drive 62
  • the operator may look through the openings 19 until the bolt 4 comes into alignment with the coupling 1' and instantly push the. coupling 1' toward the bolt to cause the stopping of the. drive.
  • the socket 2' is. then aligned over the head of the bolt 4. and the turning motor 43 is actuated to remove it.
  • a feed pellet press generally designated 46" having a stationary mold'ring 5" and a stationary end wall portion 6 with a coupling member generally designated 1" mounted on a stationary bracket extension 27 of the wallportion 6".
  • the rollers 8" rotate about the respective axes 58" and 60".
  • the projection 27 may advantageously be annular and there is provided a number of coupling elements '1" which is equivalent to the number ofbolts 4".
  • Coupling elements 1" are always maintained in alignment with the bolts 4 and they are of a construction similar to that shown in FIG. 1, with the exception that the spring 11 is biased between the collar 1b and the extension 27.
  • the foundation 44"'in- The arrangement of FIG. 3 provides a very simple construction which provides means for instantaneously tightening or loosening the bolt which holds the annular ring member 5" to the end wall portion 6".
  • the boltheads are always retained by the coupling members 1" even after disassembly, they are always in a position for rapid re-assembly with a new plate 5 when desired.
  • Anannular press device comprising an end wall member, a press ring having peripheral openings for the discharge of pressed material therethrough and having an end in abutting relationship with said end wall member, said end wall member substantialy closing the space enclosed within said press ring on one end thereof, a central shaft member extending through said end wall member, a roller carried by saidshaft within said press ring and being relatively movable in respect to the interior surface.
  • adriving pulley on said shaft member being located adjacent said end Wall member and being connected between said'shaftmember and said press ring;and end:wal l member to provide relative rotation of said shaft member with said roller in respect to said ring press and said end Wall member, said pulley having at leastone opening extending axially therethrough, at least one securing bolt extending substantially axially through a portion of said end wall member and threaded into said press ring, and an axially displaceable coupling supported adjacent said end wall member having a head portion engageable with the head of said securing bolt when said coupling is displaced toward said securing bolt and an outer portion engageable for turning the bolt head which extends axially away from said bolt toward said pulley to a location where said outer portion is directly engageable through the opening of said pulley from the opposite side of said pulley from said end wall member.
  • said coupling head portion comprises a socket engageable over the head of said securing bolt and said outer portion includes a formation permitting engagement thereof by a turning tool, and means biasing said coupling in a direction away from engagement of said socket with said bolt.
  • An annular press device according to claim 1, including means biasing said coupling into engagement with said bolt.
  • An annlar press device including means for biasing said coupling in a direction away from en agement with said bolt on said end wall member said coupling being movable against said biasing means to cause engagement of said coupling member with the bolt for removal thereof after said pulley is stopped.
  • An annular press device according to claim 1, wherein said press ring and said end wall member are rotatably mounted on said shaft, said shaft being supported in a fixed position, said pulley being rotatably around said shaft, a fixed support for said coupling located on the side of said pulley opposite to said end wall, said coupling being axially movable in said fixed support through the opening defined in said pulley to engage said securing bolt.
  • An annular press device including a plurality of securing bolts located at spaced annular locations on said end wall member and extending into said press ring.
  • An annular press device according to claim 1, wherein said annular ring member and said end wall are stationary, said pulley being afiixed to said shaft for rotation therewith and a stationary support located between said end wall member and said pulley for permanently holding said coupling in a position in alignment with said bolt, said pulley having an opening which may be aligned with said bolt for access thereto.
  • An annular press device including a stationary element for mounting said coupling.
  • An annular press device including a plurality of securing studs arranged at annular spaced relationship around said end wall member and extending into said pres-s ring, and wherein said coupling includes a plurality of coupling elements of a number corresponding to said securing bolts and means supporting said coupling members in alignment with said securing bolts.
  • An annular press device including means to bias said coupling in a direction away from said securing bolts.
  • An annular press device according to claim 9, wherein said coupling includes a member having a socket wrench end formation for engaging a head of a securing bolt.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
US540393A 1965-04-10 1966-04-05 Annular press device Expired - Lifetime US3358328A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH505165A CH434949A (de) 1965-04-10 1965-04-10 Betätigungsvorrichtung für die Befestigungsschrauben der ringförmigen Pressform von Strangpressen

Publications (1)

Publication Number Publication Date
US3358328A true US3358328A (en) 1967-12-19

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ID=4287120

Family Applications (1)

Application Number Title Priority Date Filing Date
US540393A Expired - Lifetime US3358328A (en) 1965-04-10 1966-04-05 Annular press device

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US (1) US3358328A (enrdf_load_stackoverflow)
CH (1) CH434949A (enrdf_load_stackoverflow)
DE (1) DE1231046B (enrdf_load_stackoverflow)
NL (1) NL6604716A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0396199A1 (en) * 1989-05-03 1990-11-07 Van Aarsen Machinefabriek B.V. Pelleter for feed and the like
US5486102A (en) * 1994-05-02 1996-01-23 California Pellet Mill Company High intensity pellet machine
US5542838A (en) * 1992-05-18 1996-08-06 California Pellet Mill Company System providing rapid die change capability to a pellet mill
US20090110766A1 (en) * 2007-10-25 2009-04-30 Cpm Acquisition Corporation Coupling for Pelleting Mill

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0784010B2 (ja) * 1991-11-29 1995-09-13 株式会社神戸製鋼所 水中カット造粒装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2648296A (en) * 1948-05-29 1953-08-11 Sennet A Oliver Pellet mill
US2799050A (en) * 1954-11-04 1957-07-16 Boris J Traycoff Molding apparatus
US3117343A (en) * 1962-05-17 1964-01-14 Sprout Waldron & Co Inc Pellet mill
US3167033A (en) * 1960-06-21 1965-01-26 Buehler Ag Geb Pellet mill

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2648296A (en) * 1948-05-29 1953-08-11 Sennet A Oliver Pellet mill
US2799050A (en) * 1954-11-04 1957-07-16 Boris J Traycoff Molding apparatus
US3167033A (en) * 1960-06-21 1965-01-26 Buehler Ag Geb Pellet mill
US3117343A (en) * 1962-05-17 1964-01-14 Sprout Waldron & Co Inc Pellet mill

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0396199A1 (en) * 1989-05-03 1990-11-07 Van Aarsen Machinefabriek B.V. Pelleter for feed and the like
US5542838A (en) * 1992-05-18 1996-08-06 California Pellet Mill Company System providing rapid die change capability to a pellet mill
US5486102A (en) * 1994-05-02 1996-01-23 California Pellet Mill Company High intensity pellet machine
US20090110766A1 (en) * 2007-10-25 2009-04-30 Cpm Acquisition Corporation Coupling for Pelleting Mill

Also Published As

Publication number Publication date
DE1231046B (de) 1966-12-22
NL6604716A (enrdf_load_stackoverflow) 1966-10-11
CH434949A (de) 1967-04-30

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