Bordering and/or crease-closing machine and method for operating the same

A method of flanging and closing folds with a flanging and folding/closing machine, for forming and closing fold connections in the production of pipes and of pipe connections and bends comprising segments, wherein the machine contains a rotatably mounted beading and delivery roller, a support roller and a rotatably mounted closing wheel, wherein the closing wheel arranged in a closing-wheel slide forms an acute angle with a support face of the support roller and engages on a ring, wherein the closing wheel has a smaller diameter on one lateral face thereof remote from the support roller than on the other lateral face facing the support roller, so that an obtuse angle is formed between the said one lateral, face and the end face of the closing wheel, and wherein the region between the end face and the periphery to the support roller is provided with a radius, comprising the steps:

• in a first method step clamping the ring on the support face by means of holding-down means;
• in a second method step forming a flange with a rounded attachment by delivery of offset shaping rollers;
• and in a third method step advancing the closing-wheel slide from below to the flange situated thereabove, wherein the end face of the closing wheel is the operating face at the beginning of closure, and the closing-wheel slide is advanced further until the fold rests against the ring and secures an inserted seal.

A method of flanging and closing folds on pipe segments and in bend segments with a flanging and folding/closing machine, for forming and closing fold connections in the production of pipe connections and bends comprising segments, wherein the machine contains a rotatably mounted beading and delivery roller, a support roller and a rotatably mounted closing wheel, and wherein the closing wheel arranged in a closing-wheel slide forms an acute angle with a support face of the support roller and engages on a pipe stub, wherein the closing wheel has a smaller diameter on one lateral face thereof remote from the support roller than on the other lateral face facing the support roller, so that an obtuse angle is formed between the said one lateral face and the end face of the closing wheel, and wherein the region between the end face and the periphery to the support roller is provided with a radius, comprising the steps:

• in that in a first method step impressing a continuous bead in an end piece of a pipe stub;
• in a second method step forming a flange with a rounded attachment by delivery of the offset shaping rollers;
• and
• in a third method step advancing the closing-wheel slide from below to the flange situated thereabove, wherein the end face of the closing wheel is the operating face at the beginning of closure, and the closing-wheel slide is advanced further until the fold rests against the pipe member and secures an inserted sealing strip.

A method of flanging and closing folds with a flanging and folding/closing machine, for forming and closing fold connections in the production of pipes and of pipe connections and bends comprising segments, wherein the machine contains a rotatably mounted beading and delivery roller, a support roller and a rotatably mounted closing wheel, wherein the closing wheel arranged in a closing-wheel slide forms an acute angle with a support face of the support roller and engages on a ring, wherein the closing wheel has a smaller diameter on one lateral face thereof remote from the support roller than on the other lateral face facing the support roller, so that an obtuse angle is formed between the said one lateral face and the end face of the closing wheel, and wherein the region between the end face and the periphery to the support roller is provided with a radius, and a beading and delivery roller with a concave recess is arranged parallel to the support face pressing and guiding the pipe stub on a bead against at least one convex support roller in the interior of the pipe stub, wherein the rollers are driven by a motor on both sides and run in the same direction as each other on their periphery, the method comprising the steps:

• in a first method step clamping the ring on the support face by means of holding-down means;
• in a second method step forming a flange with a rounded attachment by delivery of offset shaping rollers;
• and
• in a third method step advancing the closing-wheel slide from below to the flange situated thereabove, wherein the end face of the closing wheel is the operating face at the beginning of closure, and the closing-wheel slide is advanced further until the fold rests against the ring and secures an inserted seal.

A method of flanging and closing folds with a flanging and folding/closing machine, for forming and closing fold connections in the production of pipes and of pipe connections and bends comprising segments, wherein the machine contains a rotatably mounted beading and delivery roller, a support roller and a rotatably mounted closing wheel, wherein the closing wheel arranged in a closing-wheel slide forms an acute angle with a support face of the support roller and engages on a ring, wherein the closing wheel has a smaller diameter on one lateral face thereof remote from the support roller than on the other lateral face facing the support roller, so that an obtuse angle is formed between the said one lateral face and the end face of the closing wheel, and wherein the region between the end face and the periphery to the support roller is provided with a radius, and a beading and delivery roller with a concave recess is arranged parallel to the support face pressing and guiding the pipe stub on a bead against at least one convex support roller in the interior of the pipe stub, wherein the rollers are driven by a motor on both sides and run in the same direction as each other on their periphery, and further the support rollers are provided which are designed to be jointly rotatable and abut in the interior of the pipe stub comprising the steps:

• in a first method step clamping the ring on the support face by means of holding-down means;
• in a second method step forming a flange with a rounded attachment by delivery of offset shaping rollers;
• and
• in a third method step advancing the closing-wheel slide is advanced from below to the flange situated thereabove, wherein the end face of the closing wheel is the operating face at the beginning of closure, and the closing-wheel slide is advanced further until the fold rests against the ring and secures an inserted seal.

A method of flanging and closing folds on pipe segments and in bend segments with a flanging and folding/closing machine, for forming and closing fold connections in the production of pipe connections and bends comprising segments, wherein the machine contains a rotatably mounted beading and delivery roller, a support roller and a rotatably mounted closing wheel, and wherein the closing wheel arranged in a closing-wheel slide forms an acute angle with a support face of the support roller and engages on a pipe stub, wherein the closing wheel has a smaller diameter on one lateral face thereof remote from the support roller than on the other lateral face facing the support roller, so that an obtuse angle is formed between the said one lateral face and the end face of the closing wheel, and wherein the region between the end face and the periphery to the support roller is provided with a radius, and wherein a beading and delivery roller with a concave recess is arranged parallel to the support face pressing and guiding the pipe stub on a bead against at least one convex support roller in the interior of the pipe stub, wherein the rollers are driven by a motor on both sides and run in the same direction as each other on their periphery, and further support rollers are provided which are designed to be jointly rotatable and abut in the interior of the pipe stub the method comprising the steps:

• in a first method step impressing a continuous bead in an end piece of a pipe stub;
• in a second method step forming a flange with a rounded attachment by delivery of the offset shaping rollers;
• and
• in a third method step advancing the closing-wheel slide is advanced from below to the flange situated thereabove, wherein the end face of the closing wheel is the operating face at the beginning of closure, and the closing-wheel slide is advanced further until the fold rests against the pipe member and secures an inserted sealing strip.

A method of flanging and closing folds on pipe segments and in bend segments with a flanging and folding/closing machine, for forming and closing fold connections in the production of pipe connections and bends comprising segments, wherein the machine contains a rotatably mounted beading and delivery roller, a support roller and a rotatably mounted closing wheel, and wherein the closing wheel arranged in a closing-wheel slide forms an acute angle with a support face of the support roller and engages on a pipe stub, wherein the closing wheel has a smaller diameter on one lateral face thereof remote from the support roller than on the other lateral face facing the support roller, so that an obtuse angle is formed between the said one lateral face and the end face of the closing wheel, and wherein the region between the end face and the periphery to the support roller is provided with a radius, a beading and delivery roller with a concave recess is arranged parallel to the support face pressing and guiding the pipe stub on a bead against at least one convex support roller in the interior of the pipe stub, wherein the rollers are driven by a motor on both sides and run in the same direction as each other on their periphery comprising the steps of:

• in a first method step impressing a continuous bead in an end piece of a pipe stub;
• in a second method step forming a flange with a rounded attachment by delivery of the offset shaping rollers;
• and
• in a third method step advancing the closing-wheel slide from below to the flange situated thereabove, wherein the end face of the closing wheel is the operating face at the beginning of closure, and the closing-wheel slide is advanced further until the fold rests against the pipe member and secures an inserted sealing strip.