Centering apparatus for match plates arranged at a match plate support for molding machines

Claim 2

A centering apparatus for match plates arranged in a match plate support of a molding machine, comprising in combination: a. a match plate support provided with impact means; b. at least one match plate arranged at said match plate support, said match plate possessing predetermined impact surfaces which are to be pressed against said impact means of said match plate support; c. pressure transmission means adapted to be operatively connected with fluid energy-supply means, said pressure transmission means being disposed between said match plate support and the surfaces of said match plate situated opposite said impact surfaces thereof; and d. said pressure transmission means including hose means formed of elastic material And serving for effectuating horizontal centering of said match plate, said match plate support being provided with two substantially horizontally extending grooves which are disposed at two walls of said match plate support which are situated substantially perpendicular to one another, said hose means being arranged in said grooves, so that upon connection to said fluid energy-supply means, said hose means radially expands past the plane of the associated walls of said match plate support and therefore presses said match plate with its corresponding impact surfaces against the oppositely situated walls of said match plate support which are constructed to possess said impact means for the horizontal centering operation.

Claim 3

A centering apparatus for match plates arranged in a match plate support of a molding machine, comprising in combination: a. a match plate support provided with impact means; b. at least one match plate arranged at said match plate support, said match plate possessing predetermined impact surfaces which are to be pressed against said impact means of said match plate support; c. pressure transmission means adapted to be operatively connected with fluid energy-supply means, said pressure transmission means being disposed between said match plate support and the surfaces of said match plate situated opposite said impact surfaces thereof; and d. said pressure transmission means comprising piston-cylinder units for horizontally centering said match plate, said match plate support being provided at approximately the height of said match plate at two walls thereof which are disposed substantially perpendicular with one another with recess means for receiving said piston-cylinder units, whereby when said piston-cylinder units are connected with said fluid energy-supply means the piston portion of each such piston-cylinder units extends past the plane or the associated wall of said match plate support and therefore presses the match plate against the opposite walls of said match plate support which are constructed to possess said impact means for the horizontal centering operation.

Claim 4

A centering apparatus for match plates arranged in a match plate support of a molding machine, comprising in combination: a. a match plate support provided with impact means; b. at least one match plate arranged at said match plate support, said match plate possessing predetermined impact surfaces which are to be pressed against said impact means of said match plate support; c. pressure transmission means adapted to be operatively connected with fluid energy-supply means, said pressure transmission means being disposed between said match plate support and the surfaces of said match plate situated opposite said impact surfaces thereof; and d. said pressure transmission means comprising piston-cylinder units for horizontally centering said match plate, said match plate support being provided at approximately the height of said match plate at two walls thereof which are disposed substantially perpendicular with one another with recess means for receiving said piston-cylinder units, whereby when said piston-cylinder units are connected with said fluid energy-supply means the piston portion of each such piston-cylinder units extends past the plane or the associated wall of said match plate support and therefore presses the match plate against the opposite walls of said match plate support which are constructed to possess said impact means for the horizontal centering operation.

Claim 5

A centering apparatus as defined in claim 2, wherein said piston-cylinder units comprise two piston-cylinder units arranged in substantially spaced relationship from one another at one of said two perpendicularly extending walls of said match plate support and one further piston-cylinder unit at the other wall thereof.

Claim 6

A centering apparatus for match plates arranged in a match plate support of a molding machine, comprising in combination: a. a match plate support provided with impact means; b. at least one match plate arranged at said match plate support, said match plate possessing predetermined impact surfaces which are to be pressed against said impact means of said match plate support; c. pressure transmission means adapted to be operatively connected with fluid energy-supply means, said pressure transmission means being disposed between said match plate support and the surfaces of said match plate situated opposite said impact surfaces thereof; and d. said pressure transmission means incorporating a piston-cylinder unit for effectuating the vertical centering of said match plate, said piston-cylinder unit including a substantially plate-shaped cylinder portion possessing a number of cylinder bores, means defining a plurality of pressurized fluid medium conducting channels for operatively interconnecting said cylinder bores with one another, a piston unit arranged in each of said cylinder bores and bearing against the bottom of said match plate support, intermediate plate means disposed between said cylinder portion and said match plate, said cylinder portion acting upon said match plate through the agency of said intermediate plates, and headbolt means defining said impact means for the vertical centering operation piercingly extending through said match plate, said intermediate plates and said cylinder portion being threadabLy connected with said bottom of said match plate support, whereby upon operable connection of said pressure transmission means with said fluid energy-storage means, said match plate is pressed with its impact surface operable for vertical centering against the heads of said headbolts.

Claim 7

A centering apparatus for match plates arranged in a match plate support of a molding machine, comprising in combination: a. a match plate support provided with impact means; b. at least one match plate arranged at said match plate support, said match plate possessing predetermined impact surfaces which are to be pressed against said impact means of said match plate support; c. pressure transmission means adapted to be operatively connected with fluid energy-supply means, said pressure transmission means being disposed between said match plate support and the surfaces of said match plate situated opposite said impact surfaces thereof; and d. said pressure transmission means incorporating a piston-cylinder unit for effectuating the vertical centering of said match plate, said piston-cylinder unit including a substantially plate-shaped cylinder portion possessing a number of cylinder bores, means defining a plurality of pressurized fluid medium conducting channels for operatively interconnecting said cylinder bores with one another, a piston unit arranged in each of said cylinder bores and bearing against the bottom of said match plate support, intermediate plate means disposed between said cylinder portion and said match plate, said cylinder portion acting upon said match plate through the agency of said intermediate plates, and headbolt means defining said impact means for the vertical centering operation piercingly extending through said match plate, said intermediate plates and said cylinder portion being threadabLy connected with said bottom of said match plate support, whereby upon operable connection of said pressure transmission means with said fluid energy-storage means, said match plate is pressed with its impact surface operable for vertical centering against the heads of said headbolts.

Claim 8

A centering apparatus as defined in claim 1, further including intermediate partition wall means substantially forming a cross provided for said match plate support, in order to accommodate four match plates, said hose means extending throughout the entire periphery of said match plate support.

Claim 9

A centering apparatus for horizontal and vertical centering of match plates arranged in a match plate support of a molding machine, comprising in combination: a. a match plate support; b. impact means provided for said match plate support for the horizontal and vertical centering operations; c. at least one match plate arranged at said match plate support, said match plate possessing predetermined impact surfaces which are to be pressed against said impact means of said match plate support; and d. pressure transmission means being disposed between said match plate support and the surfaces of said match plate situated opposite said impact surfaces thereof, said pressure transmission means including a first pressure transmission unit for effectuating horizontal centering of the match plate and a second pressure transmission unit for effectuating vertical centering of said match plate.

Claim 10

A centering apparatus for horizontal and vertical centering of match plates arranged in a match plate support of a molding machine, comprising in combination: a. a match plate support; b. impact means provided for said match plate support for the horizontal and vertical centering operations; c. at least one match plate arranged at said match plate support, said match plate possessing predetermined impact surfaces which are to be pressed against said impact means of said match plate support; and d. pressure transmission means being disposed between said match plate support and the surfaces of said match plate situated opposite said impact surfaces thereof, said pressure transmission means including a first pressure transmission unit for effectuating horizontal centering of the match plate and a second pressure transmission unit for effectuating vertical centering of said match plate.

Claim 11

A centering apparatus as defined in claim 6, wherein said impact means includes at least two wall portions of said match plate support for use during horizontal centering and a number of headbolts mounted at said match plate support for use during vertical centering of said match plate.