GB697316A - Improvements in or relating to rotary molding machines - Google Patents

Improvements in or relating to rotary molding machines

Info

Publication number
GB697316A
GB697316A GB3460/50A GB346050A GB697316A GB 697316 A GB697316 A GB 697316A GB 3460/50 A GB3460/50 A GB 3460/50A GB 346050 A GB346050 A GB 346050A GB 697316 A GB697316 A GB 697316A
Authority
GB
United Kingdom
Prior art keywords
die
plunger
article
plungers
dies
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
Application number
GB3460/50A
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.)
Armstrong World Industries Inc
Original Assignee
Armstrong Cork Co
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 Armstrong Cork Co filed Critical Armstrong Cork Co
Publication of GB697316A publication Critical patent/GB697316A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/30—Feeding material to presses
    • B30B15/302—Feeding material in particulate or plastic state to moulding presses
    • B30B15/304—Feeding material in particulate or plastic state to moulding presses by using feed frames or shoes with relative movement with regard to the mould or moulds
    • 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
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/04—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds
    • B29C43/06—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds continuously movable in one direction, e.g. mounted on chains, belts
    • B29C43/08—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds continuously movable in one direction, e.g. mounted on chains, belts with circular movement, e.g. mounted on rolls, turntables
    • 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
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/08—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with moulds carried by a turntable
    • 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
    • B29C2043/3272—Component parts, details or accessories; Auxiliary operations driving means
    • B29C2043/3283—Component parts, details or accessories; Auxiliary operations driving means for moving moulds or mould parts
    • 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
    • B29C2043/3272—Component parts, details or accessories; Auxiliary operations driving means
    • B29C2043/3283—Component parts, details or accessories; Auxiliary operations driving means for moving moulds or mould parts
    • B29C2043/3288—Component parts, details or accessories; Auxiliary operations driving means for moving moulds or mould parts using cam drives
    • 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
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C2043/3676—Moulds for making articles of definite length, i.e. discrete articles moulds mounted on rotating supporting constuctions
    • B29C2043/3678—Moulds for making articles of definite length, i.e. discrete articles moulds mounted on rotating supporting constuctions on cylindrical supports with moulds or mould cavities provided on the periphery
    • 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
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C2043/3676—Moulds for making articles of definite length, i.e. discrete articles moulds mounted on rotating supporting constuctions
    • B29C2043/3678—Moulds for making articles of definite length, i.e. discrete articles moulds mounted on rotating supporting constuctions on cylindrical supports with moulds or mould cavities provided on the periphery
    • B29C2043/3681—Moulds for making articles of definite length, i.e. discrete articles moulds mounted on rotating supporting constuctions on cylindrical supports with moulds or mould cavities provided on the periphery opening and closing axially, i.e. parallel to the rotation axis
    • 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
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C2043/3676—Moulds for making articles of definite length, i.e. discrete articles moulds mounted on rotating supporting constuctions
    • B29C2043/3689—Moulds for making articles of definite length, i.e. discrete articles moulds mounted on rotating supporting constuctions on a support table, e.g. flat disk-like tables having moulds on the periphery

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Adornments (AREA)

Abstract

697,316. Rotary - mould - table compressionmoulding machines. ARMSTRONG CORK CO. Feb. 10, 1950 [Feb. 28, 1949], No. 3460/50. Class 87 (ii). Dies 8, 9 mounted on plungers 6, 7 are slidably mounted in a continuously rotatable carrier 3 supported on bearings 4. The plungers 6 are raised and lowered by fixed cams 19, 20. The plungers 7 are cushioned by fluid-actuated bellows 24 in a sealed chamber 25. A diaphragm 27 of the bellows is connected to the plunger 7 by a rod 26. The chambers 25 are connected by pipes 35, 33 to a reservoir 31. The fluid pressure system may be pneumatic or hydraulic, and if hydraulic, a pneumatic bulb 37 acts as a cushion. In operation, after curing a moulded article, the cams 19 raise the upper dies and the moulded article is removed. The bend between the article and the die 8 is first broken by an abutment 48, Fig. 2, which engages a pin 47 on the plunger 7, to turn it slightly. A small vibrator 49, Fig. 6, may also be provided to loosen the articles. The article may be unscrewed from the die by a moving belt 56. A knock-out device may be provided, acting through plunger 6. If an article has not been removed, it engages a button 61, Fig. 6, which causes a pin 63 to rise and prevent material from being fed to that die cavity. Material is fed to the dies by a shoe comprising two parts 74, 75. The part 75 is mounted on an arm 76 and is slidable with respect to the part 74 which is mounted on an arm 71. The arms 71, 76 are pivoted about 72 by a cam 67 in one direction and by a spring 73 in the other. As the feeding shoe is moving over the die cavity, under the action of the spring, the arm 76 is stopped by a bolt 80 engaging a stop 81, to open the bottom of the shoe and allow the material to fall into the cavity. This feeding apparatus comprises the subject-matter of Specification 697,378. The material may be powder or a preformed pill and it may be preheated. As the carrier rotates, the plunger 6 drops and then the cam 20 forces the plunger down, moving the die 9 down and expanding the bellows 24 to apply moulding pressure to the material. The cams 19 may have a raised part (see Fig. 3, not shown) to lift the die 8 momentarily to allow the relief of gases. The dies are heated by conduction from the plungers which are heated by elements 38, 39. The elements are controlled separately by thermo-couples 43. The current is supplied through slip rings 42. A pressure gauge 32 is provided. Specification 524,743 also is referred to.
GB3460/50A 1949-02-28 1950-02-10 Improvements in or relating to rotary molding machines Expired GB697316A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US697316XA 1949-02-28 1949-02-28

Publications (1)

Publication Number Publication Date
GB697316A true GB697316A (en) 1953-09-23

Family

ID=22090861

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3460/50A Expired GB697316A (en) 1949-02-28 1950-02-10 Improvements in or relating to rotary molding machines

Country Status (1)

Country Link
GB (1) GB697316A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1256882B (en) * 1963-09-17 1967-12-21 Eizo Aoki Device for clamping two-part injection molds during the injection molding process
DE1278736B (en) * 1964-02-10 1968-09-26 Farrel Corp Mold closing device for injection molding machines
FR2889995A1 (en) * 2005-08-29 2007-03-02 Thierry Lemoine Tablet e.g. salt tablet, machine`s e.g. rotary tablet machine, temperature controlling device, has probe measuring temperature inside matrix, heat insulator isolating matrixes from die plate, and passages formed in heat insulator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1256882B (en) * 1963-09-17 1967-12-21 Eizo Aoki Device for clamping two-part injection molds during the injection molding process
DE1278736B (en) * 1964-02-10 1968-09-26 Farrel Corp Mold closing device for injection molding machines
FR2889995A1 (en) * 2005-08-29 2007-03-02 Thierry Lemoine Tablet e.g. salt tablet, machine`s e.g. rotary tablet machine, temperature controlling device, has probe measuring temperature inside matrix, heat insulator isolating matrixes from die plate, and passages formed in heat insulator

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