Abstract

Forming apparatus (1) for forming a bell joint with a sealing gasket on an end of a plastic pipe comprises a mandrel (2) provided with a front portion (4), insertable longitudinally into a pipe end (51) of a plastic pipe (50), and a rear portion (5) for receiving a sealing gasket (10). Sectors (3) provided between the front and rear portions (4, 5) can move radially between an extended configuration (E) and a retracted configuration (F in fig.4). In the extended configuration, the sectors (3) have an external radial dimension (D1) equal to or greater than the external radial dimension (D2) of the sealing gasket (10). In use, the sectors (3) abut and radially expand a front edge of said pipe end (51) and guide it over said sealing gasket (10), preventing it from being crushed when the mandrel (2) is inserted in said pipe end (51).

IPC Classes  ?

• B29C 57/02 - Belling or enlarging, e.g. combined with forming a groove
• B29B 13/02 - Conditioning or physical treatment of the material to be shaped by heating
• B29D 23/00 - Producing tubular articles
• B29L 23/00 - Tubular articles

Abstract

A cutting apparatus (1) for making cuts on plastic pipes comprises a supporting disk (2) rotatable about a rotation axis (Z); at least one cutting tool (11) supported by the supporting disk (2) via first support means (12) and movable at least towards the rotation axis (Z) for abutting and cut a side wall (100a) of the pipe (100); an adjustment disk (3) rotatable with the supporting disk (2) and having with respect to the latter a respective adjustable angular position about the rotation axis (Z), the adjustment disk (3) being provided with first moving means (15) for moving the cutting tool (11) towards the rotation axis (Z) when an angular position of the adjustment disk (3) with respect to the supporting disk (2) is changed; driving means (5) for rotating the supporting disk (2) and the adjustment disk (3) about the rotation axis (Z) with the same speed and comprising a first driving pulley (51), rotating the supporting disk (2) by a first belt (53), and a second driving pulley (52), rotating the adjustment disk (3) by a second belt (54); adjustment means (6) for changing the angular position of the adjustment disk (3) with respect to the supporting disk (2) and comprising a couple of adjustment pulleys (7) engaged by the second belt (54) and eccentrically fixed to a mobile adjustment carriage (8) so as to be movable with the adjustment carriage (8) along an adjustment direction (R) for moving a branch (54a) of the second belt (54) and changing the angular position of the adjustment disk (3) and to eccentrically rotate when moved by the second belt (54) and generate an oscillating component in the rotation motion of the adjustment disk (3) so as to move the cutting tool (11) with a linear reciprocating motion when moved by the first movement means (15) towards the rotation axis (Z).

IPC Classes  ?

• B26D 3/16 - Cutting rods or tubes transversely

Goods & Services

(1) Industrial machines for shaping plastic pipes and profiles; industrial robots for shaping plastic material; extrusion machines for plastics; heat sealing machines for use in industrial packaging applications; machines for molding plastics; machine tools for processing semi-finished plastic products; extrusion machines for plastic; industrial robots for working plastic material; reels, mechanical, for flexible hoses; welding machines for thermoplastic tubes; extrusion moulding machines; packaging machines.

Abstract

A pipe made of plastics includes a female end with a bell joint suitable to receive a male end of another pipe and an inner wall with a seat for a gasket suitable to abut an external wall of the male end. When the pipe and other pipe are connected, a joint is formed having a hydraulic seal. The inner wall of the bell joint has at least one closing lip with an annular shape, which extends towards the inside of the bell joint, towards an external front edge of the bell joint, and includes an abutment edge, which adheres to, and tightens with a predefined force, the external wall of the male end. The closing lip is interposed between the external front edge and the seat and forms, with the inner wall, an annular cavity that opens in the direction of the external front edge.

IPC Classes  ?

• F16L 47/08 - Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket
• F16L 47/06 - Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
• E03F 3/04 - Pipes or fittings specially adapted to sewers

Abstract

A pipe (1) made of plastics comprising a female end (2) provided with a bell joint (3) suitable to receive a male end (22) of a further pipe (21) and comprising an inner wall (4) with a seat (5) for a gasket (10) suitable to abut an external wall (24) of the male end, in an assembled configuration (A) wherein pipe (1) and further pipe are mutually connected to form a joint (100) and achieve a hydraulic sealing between the pipe (1) and the further pipe (21); on the inner wall (4) of the bell joint (3) at least one closing lip (7) with an annular shape is formed, which extends towards the inside of the bell joint (3), towards an external front edge (6) of said bell joint and includes an abutment edge (7a), which adheres to, and tightens with a predefined force, the external wall (24) of the male end (22) in the assembled configuration (A); the closing lip (7) is interposed between the external front edge (6) and the seat (5) and forms, with the inner wall (4), an annular cavity (8) that opens in the direction of the external front edge (6); in this way, the closing lip (7) prevents plant roots from reaching and damaging the gasket (10), thus impairing the hydraulic sealing of the joint (100).

IPC Classes  ?

• F16L 47/08 - Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket
• E03F 3/04 - Pipes or fittings specially adapted to sewers
• F16L 47/06 - Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end

Abstract

A pipe (1) made of plastics comprising a female end (2) provided with a bell joint (3) suitable to receive a male end (22) of a further pipe (21) and comprising an inner wall (4) with a seat (5) for a gasket (10) suitable to abut an external wall (24) of the male end, in an assembled configuration (A) wherein pipe (1) and further pipe are mutually connected to form a joint (100) and achieve a hydraulic sealing between the pipe (1) and the further pipe (21); on the inner wall (4) of the bell joint (3) at least one closing lip (7) with an annular shape is formed, which extends towards the inside of the bell joint (3), towards an external front edge (6) of said bell joint and includes an abutment edge (7a), which adheres to, and tightens with a predefined force, the external wall (24) of the male end (22) in the assembled configuration (A); the closing lip (7) is interposed between the external front edge (6) and the seat (5) and forms, with the inner wall (4), an annular cavity (8) that opens in the direction of the external front edge (6); in this way, the closing lip (7) prevents plant roots from reaching and damaging the gasket (10), thus impairing the hydraulic sealing of the joint (100).

IPC Classes  ?

• F16L 47/08 - Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket
• F16L 47/06 - Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
• E03F 3/04 - Pipes or fittings specially adapted to sewers

Abstract

A forming apparatus (1) for making a bell joint (60) on an end (51) of a plastic material pipe (50) by hot plastic deformation includes moulding means (9) for externally enclosing the end (51) and a mandrel (2) movable along a longitudinal direction (A) and insertable into the end (51) in order to form the bell joint (60) in cooperation with the moulding means (9), the mandrel (2) being provided with a plurality of sectors (3) that can be transversally and externally expanded towards the moulding means (9) in an extended position (E) in order to form on a side wall (61) of the bell joint (60) an annular seat (62) for a sealing gasket; the apparatus (1) further includes a first compressing flange (12), movable along the longitudinal direction (A) and cooperating with the moulding means (9) for abutting against and forming the side wall (61) at the annular seat (62), and a second compressing flange (14) movable along the longitudinal direction (A), interposed between the first compressing flange (12) and the mandrel (2) and arranged to abut against and compress an end front portion (63) of the bell joint (60) so as to upset the plastic material against the moulding means (9), the first compressing flange (12) and the sectors (3) arranged in the extended position (E) in order to precisely form the seat (62) and the end front portion (63) of the bell joint (60).

IPC Classes  ?

• B29C 57/04 - Belling or enlarging, e.g. combined with forming a groove using mechanical means

Goods & Services

Cutting tools being parts of machines; packing installations; packaging apparatus [machines]; machines for tapping threads; machines for shaping; tube cutting instruments [machines]; tube insertion machines for industrial use; machine tools for use in binding hoses; bending machines for tubes; coil winding machines; reeling apparatus, mechanical; reels, mechanical, for flexible hoses; bending machines; heat sealing machines; welding machines for thermoplastic tubes; extrusion moulding machines; packaging machines; plastics injection forming machines; shaping and moulding machines; drilling machines; profiling machines; machines for processing plastics; electric welding apparatus; welding and soldering equipment; joining machines. Servicing of machine tools; repair information; machinery installation, maintenance and repair; maintenance and repair of instruments; repair of machines; advisory services relating to the maintenance of fixings; machinery maintenance services. Testing, authentication and quality control; testing of machinery; testing of new products; inspection of plant and machinery; technical testing services; product testing; design of industrial machinery; designing of packaging and wrapping materials; design of manufacturing methods; design services; conducting industrial tests.

Goods & Services

Cutting tools being parts of machines; machines for tapping threads; machines for shaping; tube cutting machines; tube insertion machines for industrial use; machine tools for use in binding hoses; bending machines for tubes; coil winding machines; reeling apparatus, mechanical; reels, mechanical, for flexible hoses; bending machines; heat sealing machines; welding machines for thermoplastic tubes; extrusion molding machines; plastics injection forming machines; shaping and molding machines; drilling machines; profiling machines; machines for processing plastics; joining machines; automatic bagging machines for pipes and profiles; machines for strapping and bundling pipes and profiles; palletizing and packaging plants in the nature of palletizing systems having more than one machine in a sequence, for plastic pipes and profiles

Goods & Services

Cutting tools being parts of machines; Packing installations; Packaging apparatus [machines]; Machines for tapping threads; Machines for shaping; Tube cutting instruments [machines]; Tube insertion machines for industrial use; Tools (Machine -) for use in binding hoses; Bending machines for tubes; Coil winding machines; Reeling apparatus, mechanical; Reels, mechanical, for flexible hoses; Bending machines; Heat sealing machines; Welding machines for thermoplastic tubes; Extrusion moulding machines; Extrusion moulding machines; Packaging machines; Plastics injection forming machines; Shaping and moulding machines; Drilling machines; Profiling machines; Machines for processing plastics; Electric welding apparatus; Welding and soldering equipment; Joining machines. Installation of plant; Installation of plant; Assembling [installation] of machine plant; Servicing of machine tools; Repair information; Machinery installation, maintenance and repair; Maintenance and repair of instruments; Repair of machines; Advisory services relating to the maintenance of fixings; Machinery maintenance services.