Device for moulding plastic parts

1 . A device for moulding plastic parts, comprising a first element ( 100 ) with at least one cavity ( 101 ) configured to receive and shape a portion or sheet of plastic material, and at least one second element ( 200 ) configured to cover the at least one cavity ( 101 ) of the first element ( 100 ) and assist in the shaping of the portion or sheet of plastic material, wherein the device is configured to shape the portion or sheet of plastic material by suction and/or blowing a gaseous fluid, wherein the first element ( 100 ) comprises:

a coolant inlet ( 108 ) configured for connection of an external coolant pumping system;

at least one coolant pipe ( 107 ), formed in the first element ( 100 ), connected to the coolant inlet ( 108 ), wherein the at least one coolant pipe ( 107 ) is configured to allow the flow of coolant along said at least one coolant pipe ( 107 ),

a plurality of spray orifices ( 110 ) configured to allow the outlet of the coolant from the at least one coolant pipe ( 107 ) and its spraying against a lower face of the at least one cavity ( 101 ), and

at least one drain ( 109 ) configured to allow the discharge of the coolant from the at least one coolant pipe ( 107 ),

wherein the first element ( 100 ) comprises at least one cooling gallery ( 106 ) formed in the first element ( 100 ) configured to collect the coolant sprayed from the spray orifices ( 110 ) and direct the coolant towards the at least one drain ( 109 ), wherein the first element ( 100 ) comprises:

a first base ( 100 a ) which in turn comprises the at least one cavity ( 101 ), the at least one cavity ( 101 ) comprising suction orifices ( 102 );

a second base ( 100 b ) located on the opposite side to the at least one cavity ( 101 ) of the first base ( 100 a ), and;

an intermediate panel ( 100 c ), arranged between the first base ( 100 a ) and the second base ( 100 b );

wherein the intermediate panel ( 100 c ) comprises the coolant inlet ( 108 ), the at least one drain ( 109 ), the at least one coolant pipe ( 107 ) and the at least one cooling gallery ( 106 ),

wherein the first element ( 100 ) comprises a suction nozzle ( 105 ) and the at least one cavity ( 101 ) comprises a plurality of suction orifices ( 102 ) connected to the suction nozzle ( 105 ), wherein the suction nozzle ( 105 ) is configured for the connection of an external suction system, and

wherein the suction orifices ( 102 ) of the at least one cavity ( 101 ) pass through the first base ( 100 a ) and are connected to the suction nozzle ( 105 ) through suction ducts ( 103 ) arranged on the intermediate panel ( 100 c ), wherein each of the suction ducts ( 103 ) connects to each of the suction orifices ( 102 ) with a suction chamber ( 104 ) existing in a space between the intermediate panel ( 100 c ) and the second base ( 100 b ), and wherein the suction nozzle ( 105 ) is arranged in the second base ( 100 b ) and is configured to connect the suction chamber ( 104 ) with the external suction system.

2 . The device for moulding plastic parts according to claim 1 , wherein the at least one coolant pipe ( 107 ) comprises a narrowing ( 111 ) configured to produce an acceleration of the coolant by the Venturi effect and a homogeneous outlet of the coolant through the spray orifices ( 110 ).

3 . The device for moulding plastic parts according to claim 1 , the first base ( 100 a ) comprises first threaded holes ( 112 ) located in correspondence with second threaded holes ( 113 ) of the intermediate panel ( 100 c ), such that the first base ( 100 a ) is configured to be integrally joined to the intermediate panel ( 100 c ) by inserting screws in the first threaded holes ( 112 ) and in the second threaded holes ( 113 ).

4 . The device for moulding plastic parts according to claim 1 , wherein the first base ( 100 a ) comprises a plurality of third threaded holes ( 114 ) located in correspondence with through orifices ( 115 ) of the intermediate panel ( 100 c ) and with fourth threaded holes ( 116 ) of the second base ( 100 b ), such that the first base ( 100 a ) is configured to be integrally joined to the second base ( 100 b ), through the intermediate panel ( 100 c ), by inserting screws in the third threaded holes ( 114 ), in the through orifices ( 115 ) and in the fourth threaded holes ( 116 ).

5 . The device for moulding plastic parts according to claim 4 , wherein the third threaded holes ( 114 ), the through orifices ( 115 ) and the fourth threaded holes ( 116 ) are homogeneously distributed respectively along the perimeters of the first base ( 100 a ), the intermediate panel ( 100 c ) and second base ( 100 b ).

6 . The device for moulding plastic parts according to claim 1 , wherein the first base ( 100 a ) is a hollow part.

7 . The device for moulding plastic parts according to claim 1 , wherein the at least one cavity ( 101 ) has a geometry configured to receive a mould element ( 117 ), wherein the mould element ( 117 ) has a specific geometry according to the plastic part to be manufactured.

8 . The device for moulding plastic parts according to claim 7 , wherein each of the at least one mould element ( 117 ) comprises a plurality of perimeter orifices ( 118 ) arranged in correspondence with threaded orifices ( 119 ) of the at least one cavity ( 101 ), such that each mould element ( 117 ) is configured to be integrally joined to the at least one cavity ( 101 ), by inserting screws in the perimeter orifices ( 118 ) and in the threaded orifices ( 119 ).

9 . The device for moulding plastic parts according to claim 1 wherein the at least one second element ( 200 ) comprises a plurality of gaseous fluid passages ( 201 ) configured to allow pressurised gaseous fluid to pass from an external gaseous fluid blowing system through said gaseous fluid passages ( 201 ).

10 . The device for moulding plastic parts according to claim 9 , wherein each of the at least one second element ( 200 ) comprises fastening means for fastening to a plate, such that, by moving the plate and its positioning on the first element ( 100 ), it is possible to position each of the at least one second element ( 200 ) in correspondence with each cavity each of the at least one cavity ( 101 ) of the first element ( 100 ), wherein the plate comprises a plurality of blowing orifices configured to allow gaseous fluid to pass from the external gaseous fluid blowing system to each of the at least one second element ( 200 ) and to each of the at least one cavity ( 101 ).

11 . The device for moulding plastic parts according to claim 1 wherein the first element ( 100 ) and/or the second element ( 200 ) are manufactured by 3D printing.