NL7510468A - Apparatus for rotating-axially displacing machine parts - with no axial bearing for receiving force developed on part - Google Patents

Apparatus for rotating-axially displacing machine parts - with no axial bearing for receiving force developed on part

Info

Publication number
NL7510468A
NL7510468A NL7510468A NL7510468A NL7510468A NL 7510468 A NL7510468 A NL 7510468A NL 7510468 A NL7510468 A NL 7510468A NL 7510468 A NL7510468 A NL 7510468A NL 7510468 A NL7510468 A NL 7510468A
Authority
NL
Netherlands
Prior art keywords
piston
spindle
seal section
rotating
axial bearing
Prior art date
Application number
NL7510468A
Other languages
Dutch (nl)
Original Assignee
Patent & Inventions Ltd
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 Patent & Inventions Ltd filed Critical Patent & Inventions Ltd
Priority to NL7510468A priority Critical patent/NL7510468A/en
Publication of NL7510468A publication Critical patent/NL7510468A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H43/00—Other fluid gearing, e.g. with oscillating input or output
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/50—Axially movable screw
    • B29C45/5008—Drive means therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
    • F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
    • F15B15/063—Actuator having both linear and rotary output, i.e. dual action actuator

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

Appts for rotating and axially displacing either alternately or simultaneously, a machine part, esp. a plasticising screw spindle within a hollow cylinder of an injection moulding machine, has a plug connecting a piston to the spindle, the piston having a lengthwise opening, that is outwardly sealed at its end directed towards the spindle by the plug, and receives a driving shaft connected to the motor at its other end. the shaft has a seal section, contacting the inner surface of the piston at one end, and a second seal section near its end connected to the motor the second seal section having a sleeve capable of sliding in a sealed manner against the hollow cylinder. Between the two seal sections the piston and the driving shaft are coupled together so that they can be displaced together, but not rotated, and the shaft has a passage effecting a first hydraulic connection with the end section of the opening neat the spindle. A second hydraulic connection discharges in the cylinder between the second seal section and the end of the sliding face of the piston directed towards the seal section. The appts requires no axial bearing for receiving the force developed on the spindle during plasticisation. The machine is therefore both cheaper and lighter, as such bearings are generally large and strong.
NL7510468A 1975-09-05 1975-09-05 Apparatus for rotating-axially displacing machine parts - with no axial bearing for receiving force developed on part NL7510468A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7510468A NL7510468A (en) 1975-09-05 1975-09-05 Apparatus for rotating-axially displacing machine parts - with no axial bearing for receiving force developed on part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7510468A NL7510468A (en) 1975-09-05 1975-09-05 Apparatus for rotating-axially displacing machine parts - with no axial bearing for receiving force developed on part

Publications (1)

Publication Number Publication Date
NL7510468A true NL7510468A (en) 1977-03-08

Family

ID=19824417

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7510468A NL7510468A (en) 1975-09-05 1975-09-05 Apparatus for rotating-axially displacing machine parts - with no axial bearing for receiving force developed on part

Country Status (1)

Country Link
NL (1) NL7510468A (en)

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
BV The patent application has lapsed