GB1585341A - Transverse cutter - Google Patents

Transverse cutter Download PDF

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Publication number
GB1585341A
GB1585341A GB10208/78A GB1020878A GB1585341A GB 1585341 A GB1585341 A GB 1585341A GB 10208/78 A GB10208/78 A GB 10208/78A GB 1020878 A GB1020878 A GB 1020878A GB 1585341 A GB1585341 A GB 1585341A
Authority
GB
United Kingdom
Prior art keywords
carriage
web
bar
cutter
motion
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
GB10208/78A
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.)
Gullfiber AB
Original Assignee
Gullfiber AB
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 Gullfiber AB filed Critical Gullfiber AB
Publication of GB1585341A publication Critical patent/GB1585341A/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/006—Cutting work characterised by the nature of the cut made; Apparatus therefor specially adapted for cutting blocs of plastic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0027—Cutting off
    • 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
    • B29C48/03—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
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Processing Of Solid Wastes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Description

(54) TRANSVERSE CUTTER (71) We, GULLFIBER AB, a Swedish company of S-260 50 Billesholm, Sweden, do hereby declare the invention for which we pray that a patent may be granted and the method by which it is to be performed be particularly described in and by the following statement: This invention relates to transverse cutters and is an improvement in or modification of the invention described and claimed in specification No. 52930/76 (Serial No. 1,534,100).
That invention is concerned with a means for transverse cutting of a web of cellular plastic fed continuously out of a forming machine, which means includes a standmounted reciprocating carriage moving in synchronism with the web in the direction of traverse and at the same time dividing the web into separate lengths by means of transverse cutting devices, these cutting devices consisting of mutually spaced filaments extending transversely across the carriage capable of simultaneous motion perpendicular to the plane of the carriage and which, during successive synchronised traverses of the carriage in the direction of the web, cut alternatively towards and away from the plane of the carriage in the manner described in the main patent.
The device described above allows only straight, vertical sections to be cut in the cellular plastic web, although the edge or profile of the cut sides of the cellular plastic tiles produced by the above method must commonly be given a different form allowing adjacent tiles to overlap each other. In this manner, considerably less heat is lost than if vertically cut tiles are set side by side.
For instance, the procedure for producing insulating tiles with flanged edges on all sides in a continuous process has hitherto been the following: The cellular plastic web fed continuously out of a forming machine is fed into a machine provided with edge cutters, which produce the desired shape of flange along the two sides of the cellular plastic web in a longitudinal direction. The web is then cut into tiles in the transverse cutter described above, the cuts thus produced being straight and vertical. Having passed through this cutter, each tile must be guided out of the machine in a direction perpendicular to the earlier direction of travel and passed through a second machine provided with edge cutters which cut the desired shape of flange along the two transverse sides of the tile. After this process, the direction of feed of the tile must twice more be changed by 900 before the tile again reaches the original production line, along which it is conveyed for further processing and/or treatment.
The purpose of the present invention is to improve the cutter described in the introductory paragraph in such manner as to allow the desired profile to be cut in the edge transversely across the direction of the web at the same time as the web itself is cut. This permits the production line to run in the same direction at all points.
The tiles, once cut, will not need to be diverted from the line, and edge-cutters will therefore not be necessary.
A cutting device of the type described in the introductory paragraph, which meets the requirements specified above, is characterized in this invention chiefly by filaments arranged so as to be capable of horizontal motion in the plane of the carriage and allowing the cutting of profiles of other than straight, vertical section.
The invention is described in greater detail below in the form of an embodiment presented as an example and with reference to the accompanying drawings.
Figure 1 shows an elevation of a cutter, designed in accordance with the principles of the main patent, mounted on a stand, and easily modifiable so as to allow the cutting of profiles of other than straight, vertical section.
Figure 2 is a diagrammatic section, seen from the side showing the structure of an arrangement whereby the filaments of a cutting device, as shown in figure 1, may also be moved horizontally in the plane of the carriage.
Figure 3 shows sections, seen from the side, of the edges of tiles in which various different profiles have been cut by means of the new cutting device.
The cutter illustrated in figure 1 includes a reciprocating carriage 12, mounted on a stand, the carriage being equipped with three cutting devices 14 in the form of mutually spaced filaments stretched transversely across the carriage 12 and capable of moving parallel to each other and perpendicular to the plane of the carriage. The cellular plastic forming machine is not shown but is imagined as being located to the right of the cutter, and the cellular plastic web 16 therefore moves from right to left in the figure. The stand 10 comprises a supporting frame constructed of transverse and longitudinal beams, of which only one, longitudinal, beam 18 is shown in the drawing, supported on four legs 20. The carriage 12 is mounted to slide on two separate guide shafts 22 attached to the frame, and the drawing shows two sliding mountings 24 attached to the underside of the carriage 12 and each gripping one of the guiding shafts 22 to allow sliding motion with respect to the shafts. The carriage 12 is powered by a driving cylinder 26 which is coupled directly to the underside of the carriage.
The part of the carriage 12 designed to support the cellular plastic web 16 comprises a number of parallel supporting rollers 28 located transversely across the carriage. In additoin, a number of pressure rollers 30 (obscured in the drawing) press upon the top side of the web 16, their height above the supporting rollers 28 being adjustable depending on the thickness of the web 16.
For this purpose the ends of the pressure rollers 30 can be fixed by means of locking devices 32 relative to brackets 34 projecting up from the sides of the base 36 of the carriage 12. Journals 38 at the ends of the rollers pass through elongated vertical slots 40 in the brackets. For further details concerning the described cutter, see the main patent The known transverse cutter may be modified with regard to certain components in accordance with this invention, as illustrated in figure 2. In this version, a cylinder 42 is mounted at approximately the middle of a bar 44, providing vertical motion relative to the direction of feed of the cellular plastic web 16.
A supporting bar 46, to which the ends of the filaments 14 are attached, runs parallel to each bar 44. It should be remarked that this arrangement is symmetrical and that a corresponding arrangement is naturally provided on the opposite side of the cutter.
The motion of the supporting bar 46 in a horizontal direction relative to the bar 44 is controlled by a driving cylinder 48 located above the supporting bar 46. The cylinder 48 may thus be attached to the supporting bar 46, while the end of the corresponding piston rod is attached to the bar 44. The direction in which the supporting bar 46 is driven is controlled by guides 50. Guiding devices 52 are also provided to control the movement of the bar 44 in a vertical direction.
The bar 44, movable in a vertical direction through the action of the cylinder 42, is so arranged as to enable it at points on its vertical path to act on two stop lugs, 54 and 56, one of the stop lugs 54 being provided for ascending motion, the other 56 for descending motion. The stop lugs 54, 56, may be linked together-by a link 58-in such manner that when activated they respectively open or close an electric switch, not shown in the drawing, providing pulses to start or stop the driving cylinder 48.
An adjusting lever 60 is provided for adjustment of the position of the lugs 54, 56, relative to each other and to the cellular plastic web and so enables the desired profile to be cut. It should, of course, be noted that the bar 44 and the mounting bar 46 can be moved simultaneously to allow diagonal cutting of the web.
The embodiment illustrated in figure 2 shows, naturally, only one version of the invention, which may be modified within the limits of the claims.
WHAT WE CLAIM IS: 1. Cutter means for transverse cutting of a web of cellular plastic fed continuously out of a forming machine, which means includes a stand mounted reciprocating carriage moving in synchronism with the web in one direction of traverse and at the same time dividing the web transversely into separate lengths by means of cutting devices consisting of mutually spaced filaments extending transversely across the carriage and capable of simultaneous motion perpendicular to the plane of the carriage, and which, during successive synchronized traverses of the carriage in the direction of the web, cut alternatively towards and away from the plane of the carriage, the filaments being so arranged as also to be capable of horizontal motion in the plane of the carriage and allowing the cutting of the profiles of other than straight, vertical section.
2. Cutter means according to claim 1 in which driving cylinders are arranged so as to impart to the supporting means of the filaments a horizontal motion with respect to the rest of the carriage.
3. Cutter means according to claim 2 in which the driving cylinders are arranged so as to be controlled by guiding devices according the vertical position of the filaments relative to the web.
4. Cutter means according to claim 1, substantially as herein described with reference to and as shown in the accompanying drawings.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (4)

  1. **WARNING** start of CLMS field may overlap end of DESC **.
    of the edges of tiles in which various different profiles have been cut by means of the new cutting device.
    The cutter illustrated in figure 1 includes a reciprocating carriage 12, mounted on a stand, the carriage being equipped with three cutting devices 14 in the form of mutually spaced filaments stretched transversely across the carriage 12 and capable of moving parallel to each other and perpendicular to the plane of the carriage. The cellular plastic forming machine is not shown but is imagined as being located to the right of the cutter, and the cellular plastic web 16 therefore moves from right to left in the figure. The stand
    10 comprises a supporting frame constructed of transverse and longitudinal beams, of which only one, longitudinal, beam 18 is shown in the drawing, supported on four legs 20. The carriage 12 is mounted to slide on two separate guide shafts 22 attached to the frame, and the drawing shows two sliding mountings 24 attached to the underside of the carriage
    12 and each gripping one of the guiding shafts 22 to allow sliding motion with respect to the shafts. The carriage 12 is powered by a driving cylinder 26 which is coupled directly to the underside of the carriage.
    The part of the carriage 12 designed to support the cellular plastic web 16 comprises a number of parallel supporting rollers 28 located transversely across the carriage. In additoin, a number of pressure rollers 30 (obscured in the drawing) press upon the top side of the web 16, their height above the supporting rollers 28 being adjustable depending on the thickness of the web 16.
    For this purpose the ends of the pressure rollers 30 can be fixed by means of locking devices 32 relative to brackets 34 projecting up from the sides of the base 36 of the carriage 12. Journals 38 at the ends of the rollers pass through elongated vertical slots 40 in the brackets. For further details concerning the described cutter, see the main patent The known transverse cutter may be modified with regard to certain components in accordance with this invention, as illustrated in figure 2. In this version, a cylinder 42 is mounted at approximately the middle of a bar 44, providing vertical motion relative to the direction of feed of the cellular plastic web 16.
    A supporting bar 46, to which the ends of the filaments 14 are attached, runs parallel to each bar 44. It should be remarked that this arrangement is symmetrical and that a corresponding arrangement is naturally provided on the opposite side of the cutter.
    The motion of the supporting bar 46 in a horizontal direction relative to the bar 44 is controlled by a driving cylinder 48 located above the supporting bar 46. The cylinder 48 may thus be attached to the supporting bar 46, while the end of the corresponding piston rod is attached to the bar 44. The direction in which the supporting bar 46 is driven is controlled by guides 50. Guiding devices 52 are also provided to control the movement of the bar 44 in a vertical direction.
    The bar 44, movable in a vertical direction through the action of the cylinder 42, is so arranged as to enable it at points on its vertical path to act on two stop lugs, 54 and 56, one of the stop lugs 54 being provided for ascending motion, the other 56 for descending motion. The stop lugs 54, 56, may be linked together-by a link 58-in such manner that when activated they respectively open or close an electric switch, not shown in the drawing, providing pulses to start or stop the driving cylinder 48.
    An adjusting lever 60 is provided for adjustment of the position of the lugs 54, 56, relative to each other and to the cellular plastic web and so enables the desired profile to be cut. It should, of course, be noted that the bar 44 and the mounting bar 46 can be moved simultaneously to allow diagonal cutting of the web.
    The embodiment illustrated in figure 2 shows, naturally, only one version of the invention, which may be modified within the limits of the claims.
    WHAT WE CLAIM IS: 1. Cutter means for transverse cutting of a web of cellular plastic fed continuously out of a forming machine, which means includes a stand mounted reciprocating carriage moving in synchronism with the web in one direction of traverse and at the same time dividing the web transversely into separate lengths by means of cutting devices consisting of mutually spaced filaments extending transversely across the carriage and capable of simultaneous motion perpendicular to the plane of the carriage, and which, during successive synchronized traverses of the carriage in the direction of the web, cut alternatively towards and away from the plane of the carriage, the filaments being so arranged as also to be capable of horizontal motion in the plane of the carriage and allowing the cutting of the profiles of other than straight, vertical section.
  2. 2. Cutter means according to claim 1 in which driving cylinders are arranged so as to impart to the supporting means of the filaments a horizontal motion with respect to the rest of the carriage.
  3. 3. Cutter means according to claim 2 in which the driving cylinders are arranged so as to be controlled by guiding devices according the vertical position of the filaments relative to the web.
  4. 4. Cutter means according to claim 1, substantially as herein described with reference to and as shown in the accompanying drawings.
GB10208/78A 1977-03-25 1978-03-15 Transverse cutter Expired GB1585341A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7703474A SE409669B (en) 1977-03-25 1977-03-25 CUTTING DEVICE FOR MOBILE STRINGS THAT ARE CONTINUALLY PRODUCED

Publications (1)

Publication Number Publication Date
GB1585341A true GB1585341A (en) 1981-02-25

Family

ID=20330845

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10208/78A Expired GB1585341A (en) 1977-03-25 1978-03-15 Transverse cutter

Country Status (7)

Country Link
JP (1) JPS5463478A (en)
DE (1) DE2812591A1 (en)
FR (1) FR2384605A2 (en)
GB (1) GB1585341A (en)
NL (1) NL7803113A (en)
SE (1) SE409669B (en)
SU (1) SU703008A3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3224906C2 (en) * 1982-07-03 1985-09-12 Continental Gummi-Werke Ag, 3000 Hannover Device for producing profile strands from elastomeric materials

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1191553B (en) * 1958-09-06 1965-04-22 Schloemann Ag Cutting device for a strand of plastic material
US3072004A (en) * 1959-07-31 1963-01-08 Armstrong Rubber Co Severing apparatus
US3373642A (en) * 1966-02-09 1968-03-19 Ferro Dynamics Inc Hydraulically regulated workpiece accelerating device
SE400730B (en) * 1975-12-29 1978-04-10 Gullfiber Ab DEVICE FOR CUTTING A FROM A MOLDING MACHINE CONTINUOUSLY FEEDED STRIP OF CELL PLASTIC

Also Published As

Publication number Publication date
SE409669B (en) 1979-09-03
JPS5463478A (en) 1979-05-22
SE7703474L (en) 1978-09-26
SU703008A3 (en) 1979-12-05
DE2812591A1 (en) 1978-09-28
FR2384605A2 (en) 1978-10-20
NL7803113A (en) 1978-09-27

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Legal Events

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