GB2375071A - Extrusion die (slipper) adjustment mechanism - Google Patents

Extrusion die (slipper) adjustment mechanism Download PDF

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Publication number
GB2375071A
GB2375071A GB0108257A GB0108257A GB2375071A GB 2375071 A GB2375071 A GB 2375071A GB 0108257 A GB0108257 A GB 0108257A GB 0108257 A GB0108257 A GB 0108257A GB 2375071 A GB2375071 A GB 2375071A
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GB
United Kingdom
Prior art keywords
slipper
adjustment mechanism
roller
extrusion die
shaft
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.)
Granted
Application number
GB0108257A
Other versions
GB2375071B (en
GB0108257D0 (en
Inventor
William Roy Powel
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB0108257A priority Critical patent/GB2375071B/en
Publication of GB0108257D0 publication Critical patent/GB0108257D0/en
Publication of GB2375071A publication Critical patent/GB2375071A/en
Application granted granted Critical
Publication of GB2375071B publication Critical patent/GB2375071B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
    • B28B3/26—Extrusion dies
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/35—Extrusion nozzles or dies with rollers

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

An Extrusion Die (Slipper) 2 Adjustment Mechanism that enables a means for the Slipper(s) 2 to be pivoted radially about the shaft that supports the Roller 1 in such manner as to maintain the relationship set between the Slipper(s) 2 and Roller 1. In the rotated position the Slipper(s) 2 can be adjusted or checked. The Adjustment Mechanism may also incorporate one or more of the traditional Slipper(s) setting devices.

Description

<Desc/Clms Page number 1>
EXTRUSION DIE (SLIPPER) ADJUSTMENT MECHANISM This invention relates to a holding, adjustment and setting mechanism for use in extrusion machines, typically used, but not limited to products such as, roof tiles, paving slabs and wall cladding products.
Such extrusion machines are well known for producing these products and comprise a system of feeding moulds through the"Extrusion Head"whereby the top surface of the product is formed by a roller and/or paddle (or similar system) hereinafter referred to as the Roller and one or more extrusion dies, hereinafter referred to as a"Slipper" or"Slippers". The relationship between the Slipper (s) to Roller relative to the mould or other base system is critical to forming the product. The traditional means of setting and checking the "Slipper's" relationship is inherently a time consuming complicated procedure performed by trained personnel. If a machine is stopped for any length of time during a production run the material inside the extrusion head can lose"workability'resulting in high pressure and additional load when the machine is restarted, this can cause damage to high value parts. To overcome this problem the Slipper must be"backed-off"or partially removed to relieve the pressure. The Slipper must then be returned to its working position, this can be difficult and time consuming to achieve and may need to be re-adjusted. If the Slipper is repositioned incorrectly, damage may occur.
The object of this invention is to provide a more simple means of setting, adjusting and checking the relationship between the Slipper to Roller and mould or base, even when the Extrusion Head is mounted on the Extrusion Machine. The invention also enables pressure in the machine to be relieved in the event of an emergency, without affecting positional accuracy.
Accordingly this invention provides an Extrusion Die (Slipper) Adjustment Mechanism that enables a means for the Slipper (s) to be pivoted radially about the shaft that supports the Roller in such manner as to maintain the relationship set between the Slipper and Roller.
The Slipper (s) may be supported on a Cross Strap, which may also house the adjustment devices used for adjusting each Slipper individually and relative to each other. This adjustment may also be used for setting the distance between the Roller and Slipper.
An example of the embodiment of the invention will now be described with reference to the accompanying drawing in which :- Figure 1 shows an example sectional isometric view of the Roller 1 mounted on Shaft 3 and Slipper 2 mounted on optional Strap 4 which is able to pivot about Shaft 3. For
clarity a symbolic extruded product 6 is shown passing under the Roller 1 and Slipper I)
<Desc/Clms Page number 2>
Figure 2 shows a side view of an Extrusion Head with the Strap 4 mounted in such manner as to pivot about the Shaft 3.
Figure 3 shows a sectional side view of an Extrusion Head with the Slipper 2 mounted on Strap 4 in a working position.
Figure 4 shows a sectional side view of an Extrusion Head with the Slipper 2 mounted on Strap 4 in a setting position.
Figure 5 shows a diagrammatic view of the setting relationships between the Roller 1 and the Slipper 2 Referring to the drawing, figure 1 shows the slipper attached to an optional Strap 4 by optional adjustment studs/nuts/bolts. The Strap 4 is able to rotate about Shaft 3 to enable the Slipper 2 to be moved to different positions as shown in fig 4 and fig 5 thus enabling the relative position between the Roller 1 and Slipper 2 to be inspected and adjusted. This illustrates that after the relationships DIM'A','B'and ANGLE'C' are set, the configuration can be rotated to any position maintaining those relationships as shown in fig 5.
In the working position, the Strap 4 is constrained relative to the product 6 being produced. The amount of pressure and compaction can be finely adjusted to give the desired technical properties to the extruded product.
In the case of an interruption during production when the pressure in the system must be relieved, the invention allows for that pressure to be relieved by allowing the Slipper 2 to rotate around the Shaft 3 in the direction of extrusion. When it is desired to return to the normal production setting, this can simply be achieved by rotating the Slipper 2 back to the desired constrained working position.
At any time, the relationship between the Roller 1 and the Slipper 2 may be inspected for wear, damage and relative position. This is achieved by rotating the Slipper 2 round Roller 1 as shown in fig 4 to a convenient angle for access.

Claims (4)

  1. CLAIMS 1. An Extrusion Die (Slipper) Adjustment Mechanism that provides a means for the Slipper (s) to be pivoted radially about the shaft that supports the Roller in such manner as to maintain the relationship set between the Slipper and Roller.
  2. 2. An Extrusion Die (Slipper) Adjustment Mechanism as claimed in Claim 1 whereby the Slipper is linked to the Shaft via a Strap incorporating adjusting stud/bolts or similar.
  3. 3. An Extrusion Die (Slipper) Adjustment Mechanism as claimed in any preceding claim whereby the Slipper is attached to the Shaft via arms/brackets/spacers.
  4. 4. An Extrusion Die (Slipper) Adjustment Mechanism substantially as described herein with reference to figures 1-5 of the accompanying drawings.
GB0108257A 2001-04-03 2001-04-03 Extrusion die(slipper)adjustment mechanism Expired - Fee Related GB2375071B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0108257A GB2375071B (en) 2001-04-03 2001-04-03 Extrusion die(slipper)adjustment mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0108257A GB2375071B (en) 2001-04-03 2001-04-03 Extrusion die(slipper)adjustment mechanism

Publications (3)

Publication Number Publication Date
GB0108257D0 GB0108257D0 (en) 2001-05-23
GB2375071A true GB2375071A (en) 2002-11-06
GB2375071B GB2375071B (en) 2004-09-15

Family

ID=9912100

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0108257A Expired - Fee Related GB2375071B (en) 2001-04-03 2001-04-03 Extrusion die(slipper)adjustment mechanism

Country Status (1)

Country Link
GB (1) GB2375071B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2097711A (en) * 1981-04-30 1982-11-10 Werner & Pfleiderer Piston extruder
GB2163090A (en) * 1984-06-30 1986-02-19 Berstorff Gmbh Masch Hermann Roller die extrusion apparatus for producing profiles or webs such as tread strips for vehicle tyres
US5299927A (en) * 1991-03-14 1994-04-05 Kema-Keramikmaschinenbau Gmbh Gorlitz Vacuum press for continuous production of plastic extruded masses
US5743059A (en) * 1993-11-05 1998-04-28 Crh Oldcastle, Inc. Roof tile
US5888557A (en) * 1998-01-23 1999-03-30 Akron Extruders, Inc. Flexible locking gate for an extruder
WO1999043488A1 (en) * 1998-02-27 1999-09-02 The Goodyear Tire And Rubber Company Conveyors for a roller die extruder

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2097711A (en) * 1981-04-30 1982-11-10 Werner & Pfleiderer Piston extruder
GB2163090A (en) * 1984-06-30 1986-02-19 Berstorff Gmbh Masch Hermann Roller die extrusion apparatus for producing profiles or webs such as tread strips for vehicle tyres
US5299927A (en) * 1991-03-14 1994-04-05 Kema-Keramikmaschinenbau Gmbh Gorlitz Vacuum press for continuous production of plastic extruded masses
US5743059A (en) * 1993-11-05 1998-04-28 Crh Oldcastle, Inc. Roof tile
US5888557A (en) * 1998-01-23 1999-03-30 Akron Extruders, Inc. Flexible locking gate for an extruder
WO1999043488A1 (en) * 1998-02-27 1999-09-02 The Goodyear Tire And Rubber Company Conveyors for a roller die extruder

Also Published As

Publication number Publication date
GB2375071B (en) 2004-09-15
GB0108257D0 (en) 2001-05-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20130403