WO2010084470A4 - Dosing apparatus for polymeric materials - Google Patents

Dosing apparatus for polymeric materials Download PDF

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Publication number
WO2010084470A4
WO2010084470A4 PCT/IB2010/050273 IB2010050273W WO2010084470A4 WO 2010084470 A4 WO2010084470 A4 WO 2010084470A4 IB 2010050273 W IB2010050273 W IB 2010050273W WO 2010084470 A4 WO2010084470 A4 WO 2010084470A4
Authority
WO
WIPO (PCT)
Prior art keywords
contrasting
revolving elements
elements
freely rotatable
dose
Prior art date
Application number
PCT/IB2010/050273
Other languages
French (fr)
Other versions
WO2010084470A2 (en
WO2010084470A3 (en
Inventor
Zeno Zuffa
Giambattista Cavina
Fiorenzo Parrinello
Original Assignee
Sacmi Cooperativa Meccanici Imola Societa' Cooperativa
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 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa filed Critical Sacmi Cooperativa Meccanici Imola Societa' Cooperativa
Priority to EP10706373A priority Critical patent/EP2379295A2/en
Publication of WO2010084470A2 publication Critical patent/WO2010084470A2/en
Publication of WO2010084470A3 publication Critical patent/WO2010084470A3/en
Publication of WO2010084470A4 publication Critical patent/WO2010084470A4/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/34—Feeding the material to the mould or the compression means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
    • B29C31/042—Feeding of the material to be moulded, e.g. into a mould cavity using dispensing heads, e.g. extruders, placed over or apart from the moulds
    • B29C31/048—Feeding of the material to be moulded, e.g. into a mould cavity using dispensing heads, e.g. extruders, placed over or apart from the moulds the material being severed at the dispensing head exit, e.g. as ring, drop or gob, and transported immediately into the mould, e.g. by gravity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/34—Feeding the material to the mould or the compression means
    • B29C2043/3405—Feeding the material to the mould or the compression means using carrying means
    • B29C2043/3411—Feeding the material to the mould or the compression means using carrying means mounted onto arms, e.g. grippers, fingers, clamping frame, suction means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/34—Feeding the material to the mould or the compression means
    • B29C2043/3466—Feeding the material to the mould or the compression means using rotating supports, e.g. turntables or drums
    • B29C2043/3472—Feeding the material to the mould or the compression means using rotating supports, e.g. turntables or drums using star wheels comprising arms

Abstract

An apparatus for obtaining doses of plastics in a pasty state comprises a dispensing device (1) for dispensing plastics (2), cutting means (3) for cutting said plastics (2) to obtain a dose (D) and contrasting means (7; 107; 207; 307) opposite said cutting means (3) for restingly receiving said plastics (2) during and after cutting, said contrasting means (7; 107; 207; 307) comprising a first contrasting element (13; 113; 115) and a second contrasting element (13; 113; 116) that are mutually movable.

Claims

34AMENDED CLAIMS [Received by the International Bureau on 19 October 2010 (19.10.10)]
1. Apparatus comprising a dispensing device (1) for dispensing plastics (2), cutting means (3) movable along an advancing direction (A) for cutting said plastics (2) to obtain a dose (D) and contrasting means (7; 107; 207;
307) for supportingly receiving said plastics (2) during and after cutting, characterised in that said contrasting means (7; 107; 207; 307) is arranged substantially in front of said cutting means (3) along said advancing direction (A) , said contrasting -means comprising a first contrasting element (13; 113; 208;
315) and a second contrasting element (13; 113; 210;
316) , each of said contrasting element being movable with respect to the other contrasting element.
2. Apparatus according to claim 1, wherein said first contrasting element (13; 113) and said second contrasting element (13; 113) are movable between an open configuration (0), in which said plastics (2) are received between said first contrasting element (13; 113) and said second contrasting element (13; 113), and a closed configuration (C) , in which said first contrasting element (13; 113) and said second contrasting element (13; 113) partially envelop said dose (D) to shape said dose (D) .
3. Apparatus according to claim 1, or 2, wherein said first contrasting element (13; 113) and said second contrasting element (13; 113) comprise shaping surfaces (38) for shaping said dose (D) .
4. Apparatus according to claim 3, wherein said shaping surfaces are curved.
5. Apparatus according to claim 3, or 4, wherein said shaping surfaces (38) define a seat (102) shaped so as partially to envelop said dose (D) .
6. Apparatus according to any preceding claim, wherein said first contrasting element (13; 113) and said second contrasting element (13; 113) are supported by a 35
supporting structure (14) and are movable with respect to said supporting structure (14) .
7. Apparatus according to claim 6 as appended to any one of claims 3 to 5 , wherein said supporting structure (14) comprises a further shaping surface (39) cooperating with said shaping surfaces (38) for shaping said dose (D) .
8. Apparatus according to claim 7, wherein said further shaping surface (39) is curved.
9. Apparatus according to claim 7, or 8 , as claim 6 depends on claim 5, wherein said further shaping surface (39) cooperates with said shaping surfaces (38) to define said seat (102) .
10. Apparatus according to any one of claims 6 to 9, wherein said first contrasting element (13; 113) and said second contrasting element (13; 113) are hinged on said supporting structure (14) .
11. Apparatus according to claim 10, and further comprising a pair of levers (23), a first lever (23) of said pair of levers having an end (24) rotatably connected to said first contrasting element (13) and a further end (25) that is rotatably connected to a movable body (26, 29, 31) and a second lever (23) of said pair of levers having an end (24) rotatably connected to said second contrasting element (13) and a further end (25) connected to said movable body (26, 29, 31) .
12. Apparatus according to claim 10, and further comprising a pair of levers (123), a first lever (123) of .said pair of levers having an end (124) connected to said first contrasting element (113) by a spherical joint (128) and a further end (125) rotatably connected to a movable body (26, 29, 31) and a second lever (123) of said pair of levers having an end (124) connected to said second contrasting element (113) by a further spherical joint (128) and a further end (125) connected to said movable body (26, 29, 31) .
13. Apparatus according to claim 11, or 12, wherein on said movable body (26, 29, 31) a revolving element (35) is rotatably supported, engaging with a track (36) obtained in a rotating body (47) .
14. Apparatus according to any one of claims 11 to 13, wherein said movable body (26, 29, 31) is slidable linearly between an advanced position (M) , in which said movable body (26, 29, 31) is nearer said dispensing device (1) and a retracted position (N) , in which said movable body (26, 29, 31) is further from said dispensing device (1) .
15. Apparatus according to any one of claims 6 to 14, wherein said supporting structure (14) comprises a body
(16) in which supplying and discharging channels (17) for supplying and discharging a cooling fluid are obtained.
16. Apparatus according to claim 15, wherein said supplying and discharging channels (17) are connected by mouths
(18) respectively to a supply device arranged for supplying the shaping means (12) with the cooling fluid and to a discharging device arranged for evacuating the cooling fluid from the shaping means (12) .
17. Apparatus according to claim 16, or 17, wherein said supplying and discharging channels (17) are further connected by conduits (22) to a cooling conduit (19) obtained inside each of the contrasting elements (13; 113) .
18. Apparatus according to claim 17, wherein said cooling fluid is a gaseous fluid, and said contrasting elements (13; 113) and said further shaping surface (39) being made of a porous material .
19. Apparatus according to claim 1, wherein said first contrasting element (208) and said second contrasting element (210) are mutually movable along a direction (E) that is substantially perpendicular to a transferring direction (F) of said dose (D) . 37
20. Apparatus according to claim 19, wherein said first contrasting element (208) and said second contrasting element (210) are mutually movable along a further direction (G) that is substantially perpendicular to said direction (E) and to said transferring direction (F) .
21. Apparatus according to claim 19, or 20, wherein said first contrasting element (208) is placed below said second contrasting element (210) .
22. Apparatus according to any one of claims 19 to 21, wherein said first contrasting element (208) is U-shaped with a pair of arms (216, 217) that are substantially parallel to one another, connected by a curved portion
(218) .
23. Apparatus according to claim 22, wherein inside said curved portion (218) freely rotatable revolving elements (209) are arranged.
24. Apparatus according to claim 23, comprising a plurality of freely rotatable revolving elements (209a, 209b, 209c, 209d, 209e) , comprising a central revolving element (209a) and a plurality of side revolving elements (209b, 209c, 209d, 209e)
25. Apparatus according to claim 24, wherein each of said freely rotatable revolving elements (209a, 209b, 209c, 209d, 209e) is rotatable on a respective shaft (220a, 220b, 220c, 22Od, 22Oe) , between said freely rotatable revolving elements (209a, 209b, 209c, 209d, 209e) and the respective shafts (220a, 220b, 220c, 22Od, 22Oe) there being interposed pairs of bearings (221) .
26. Apparatus according to claim 24, or 25, wherein said side revolving elements (209b, 209c, 209d, 209e) are orientable in relation to each other and in relation to the central revolving element (209a) .
27. Apparatus according to claim 26, as appended to claim 25, wherein an end of each shaft (220b, 220c, 22Od, 22Oe) of each side revolving element (209b, 209c, 209d 38
and 209e) is fixed to a respective pivot element (222b, 222c, 222d and 222e) , that is rotatable around a respective axis (223b, 223c, 223d, 223e) that is substantially perpendicular to the axis of the respective shaft (220b, 220c, 22Od, 22Oe) .
28. Apparatus according to any one of claims 20 to 27, wherein said second contrasting element (210) is provided, at an end facing said curved portion (218) of the first contrasting element (208) , with a seat (211) having a substantially semicircular shape.
29. Apparatus according to claim 28, wherein said seat (211) is covered with an antiadhesive material.
30. Apparatus according to claim 28, or 29, wherein said curved portion (218) of the first contrasting element (208) and said seat (211) of the second contrasting element (210) define a guiding channel for said dose (D) .
31. Apparatus according to any preceding claim, and further comprising transferring means (101) intended for receiving said dose (D) and for transferring said dose (D) , said transferring means (101) being distinct from said contrasting means (7; 107; 207) .
32. Apparatus according to claim 31, wherein said transferring means comprises transferring elements (101) supported by a rotatable carousel .
33. Apparatus according to claim 32, wherein each transferring element (101) comprises an inlet element (212) with a substantially semicylindrical shape, on the internal surface of which there are arranged further freely rotatable revolving elements (213) .
34. Apparatus according to claim 32, or 33, wherein each transferring element (101) comprises a transferring chamber (215) that is open at both ends and is provided, on the inner surface thereof, with still further freely rotatable revolving elements (214) . 39
35. Apparatus according to any one of claims 31 to 34, and further comprising compression-moulding mould means arranged for receiving said dose (D) from said transferring means (101) and for compression-moulding said dose (D) .
36. Apparatus according to claim 35, wherein said compression-moulding mould means is supported by rotatable carousel means .
37. Apparatus according to any one of claims 23 to 36, wherein said freely rotatable revolving elements (209) and/or said further freely rotatable revolving elements (213) and/or said still further freely rotatable revolving elements (214) are made of a non-adhesive material, or coated with a non-adhesive material.
38. Apparatus according to any one of claims 23 to 37, wherein an external surface of said freely rotatable revolving elements (209) and/or said further freely rotatable revolving elements (213) and/or said still further freely rotatable revolving elements (214) is provided with protuberances (224) .
39. Apparatus according to any one of claims 23 to 36, wherein on said freely rotatable revolving elements
(209) and/or on said further freely rotatable revolving elements (213) and/or on said still further freely rotatable revolving elements (214) a plurality of annular elements (225) is placed that are made of a non- adhesive material.
40. Apparatus according to any one of claims 23 to 39, further comprising cooling means for cooling said first contrasting element (208) , said second contrasting element (210) , said inlet element (212) and a body (219) of said inserting element (101) .
41. Apparatus according to claim 40, wherein said cooling means is suitable for cooling directly said freely rotatable revolving elements (209) and/or said further 40
freely rotatable revolving elements (213) and/or said still further freely rotatable revolving elements (214).
42. Apparatus according to claim 41, wherein said freely rotatable revolving elements (209) and/or said further freely rotatable revolving elements (213) and/or said still further freely rotatable revolving elements (214) and/or said seat (211) of the second contrasting element (210) are made of porous material.
43. Apparatus according to claim 1, wherein said contrasting means (307) comprises first contrasting means (308) and second contrasting means (309) , said second contrasting means (309) comprising said first contrasting element (315) and said second contrasting element (316) .
44. Apparatus according to claim 1, wherein said first contrasting element (315) and said second contrasting element (316) are movable in relation to one another on a plane substantially perpendicular to a transferring direction (F) of said dose (D) between an open configuration (0) , in which said dose (D) is received between said first contrasting element (315) and said second contrasting element (316) , and a closed configuration (C) , in which said first contrasting element (315) and said second contrasting element (316) partially envelop said dose (D) .
45. Apparatus according to claim 44, wherein said first contrasting element comprises a first arm (315) rotatably supported on a body (317) of said second contrasting means (309) , so as to be able to rotate around a first fulcrum (318) .
46. Apparatus according to claim 45, wherein said first arm (315) is provided with first revolving elements (320) , supported at an end of the first arm (315) opposite said first fulcrum (318) , and with second revolving elements (321) supported in an intermediate position of the first arm (315) , said first revolving elements (320) and said 41
second revolving elements (321) being free to rotate around respective rotation axes.
47. Apparatus according to claim 46, wherein said first revolving elements (320) are supported on a first supporting element (323) connected to said end of the first arm (315) , such that an angular position of said first supporting element (323) is adjustable with respect to a respective rotation axis (X) .
48. Apparatus according to any one of claims 44 to 47, wherein said second contrasting element comprises a second arm (316) rotatably supported on a body (317) of said second contrasting means (309) , so as to be able to rotate around a second fulcrum (319) .
49. Apparatus according to claim 48, wherein said second arm (316) is provided with further first revolving elements
(320'), supported at an end of the second arm (316) opposite said second fulcrum (318) , and with further second revolving elements (321' ) supported in an intermediate position of the second arm (316) , said further first revolving elements (320') and said further second revolving elements (321') being free to rotate around respective rotation axes .
50. Apparatus according to claim 49, wherein said further first revolving elements (320') are supported at un further first supporting element (323') rotatably connected to said end of the second arm (316) , such that, a position of said further first supporting element (323') that is angular to respective rotation axis (X') is adjustable.
51. Apparatus according to claim 49, or 50, wherein the rotation axes of said first revolving elements (320) and of said further first revolving elements (320') converge on one another.
52. Apparatus according to any one of claims 49 to 51, wherein the rotation axes of said second revolving 42
elements (321) and of said further second revolving elements (321') converge on one another.
53. Apparatus according to any one of claims 44 to 52, wherein said second contrasting means comprises a contrasting and resting element (324) arranged between said first contrasting element (315) and said second contrasting element (316) , said contrasting and resting element comprising third revolving elements (325) that are free to rotate around respective rotation axes.
54. Apparatus according to any one of claims 44 to 53, wherein said first contrasting means (308) comprises a plate (313), an end of which, facing said transferring direction (F), is provided with a seat (314) that is suitable for acting as a resting element for said dose (D) .
55. Apparatus according to any one of claims 44 to 54, wherein said first contrasting means (308) and said second contrasting means (309) are movable in a direction (E) substantially perpendicular to said transfer direction (F) .
56. Apparatus according to claim 55, further comprising adjusting means (310) that is suitable for moving said first contrasting means (308) and said second contrasting means (309) in said direction (E) .
57. Apparatus according to claim 56, wherein said adjusting means (310) comprises a slide element (311) to which said first contrasting means (308) and said second contrasting means (309) are fixed, said slide element
(311) being movable in said direction (E) .
58. Apparatus according to claim 57, further comprising driving means (312) for moving said slide element (311) along said direction (E) .
PCT/IB2010/050273 2009-01-22 2010-01-21 Apparatus WO2010084470A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10706373A EP2379295A2 (en) 2009-01-22 2010-01-21 Dosing apparatus for polymeric materials

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMO2009A000014 2009-01-22
ITMO2009A000014A IT1396653B1 (en) 2009-01-22 2009-01-22 APPARATUS

Publications (3)

Publication Number Publication Date
WO2010084470A2 WO2010084470A2 (en) 2010-07-29
WO2010084470A3 WO2010084470A3 (en) 2010-10-07
WO2010084470A4 true WO2010084470A4 (en) 2010-12-16

Family

ID=41394925

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2010/050273 WO2010084470A2 (en) 2009-01-22 2010-01-21 Apparatus

Country Status (3)

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EP (1) EP2379295A2 (en)
IT (1) IT1396653B1 (en)
WO (1) WO2010084470A2 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4573175B2 (en) * 2003-07-14 2010-11-04 東洋製罐株式会社 Method and apparatus for forcibly inserting a drop into a compression molding machine, and molding die follow-up type drop supply method and apparatus
EP1755848A2 (en) * 2004-04-23 2007-02-28 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Apparatuses and method for transferring plastics material to a compression moulding machine
JP4600659B2 (en) * 2005-01-21 2010-12-15 東洋製罐株式会社 Method and apparatus for supplying molten resin, and method for producing molded article using supplied molten resin
ES2367031T3 (en) * 2005-04-13 2011-10-27 Sacmi Cooperativa Meccanici Imola Società Cooperativa APPLIANCE TO TRANSFER DOSE.
JP4857784B2 (en) * 2006-01-27 2012-01-18 東洋製罐株式会社 Preform removal device
ATE527092T1 (en) * 2006-08-07 2011-10-15 Sacmi DEVICE WITH A CONVEYOR
JP4985257B2 (en) 2007-09-14 2012-07-25 東洋製罐株式会社 Molten resin supply apparatus and manufacturing method by compression molding of bottomed cylindrical article

Also Published As

Publication number Publication date
WO2010084470A2 (en) 2010-07-29
ITMO20090014A1 (en) 2010-07-23
IT1396653B1 (en) 2012-12-14
EP2379295A2 (en) 2011-10-26
WO2010084470A3 (en) 2010-10-07

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