Method and machine for the manufacture of metallic frames for inner spring mattresses

Abstract

A round wire or flat wire promoted and having been straightened by the feeding straightening mechanism is measured by the length measuring instrument and shaped into a suitable elliptical or circular shape by a rotating arm with a jaw, is then cut to the desired length by a cutter, its ends being suitably shaped by a shaper prior to or following it and are connected by a connective mechanism with a suitable connective plate in a manner that the material of the means of connection penetrates into the suitable incisions formed by the cutter or the shaper. In the sequel, an arm transports the frame for bending into a suitably arranged bending unit where the frame takes its final shape.

1 . Method for the manufacture of metallic frames for inner spring mattresses of round wire or flat wire of any cross section and material subject to plastic bending, which consists of the following stages: straightening, production of an open frame of a length equal to the circumference of the frame under production, cut-off of the round wire or flat wire with the formation of suitable incisions at the ends of the said round wire or flat wire simultaneously with the cut-off or prior or following it, production of suitable elliptical or circle, connection of the two ends with a connective plate or a small tube or by welding or with glue and a suitable connective plate or a small tube and finally bending of the angles of the frame.  
     
     
         2 . Method according to    claim 1    which is characterized by that the shaping of the round wire or flat wire in an open frame of a suitable elliptical or circular shape, connection of the two ends of the said open frame are performed prior to bending.  
     
     
         3 . Method according to    claim 1   , which is characterized by that it requires a suitable shaping of the ends of the open frame during the cut-off or prior to or following it and the suitable pressure of the suitable connection plate or of the small tube so that the material of the said connective plate or of the small tube penetrates into the suitable incisions resulting in a strong connection of the ends of the frame.  
     
     
         4 . Method for the manufacture of metallic frames for inner spring mattresses according to    claim 1   , which necessitates the suitable shaping of the two ends of the frame during the cut-off or before or following it so that they can hook together and then be wound suitably with a suitable plate or a small tube, resulting in a strong connection of the ends of the frame.  
     
     
         5 . Method for the manufacture of metallic frames for inner spring mattresses according to    claim 1   , which necessitates the welding of the two ends of the frame, resulting in their strong connection together.  
     
     
         6 . Method for the manufacture of metallic frames for inner spring mattresses according to    claim 1   , which necessitates the connection of the two ends of the frame with suitable glue and suitable plate or small tube, resulting in a strong connection of the ends of the frame.  
     
     
         7 . Method for the manufacture of metallic frames for inner spring mattresses according to    claim 1   , made of round wire or flat wire which necessitates the shaping of the open frame into an elliptical or circular shape, connection of the two ends with a suitable means of connection and then bending.  
     
     
         8 . Method for the manufacture of metallic frames for inner spring mattresses according to    claim 1    of round wire which necessitates the shaping of the open frame into an elliptical or circular shape along the side with the smallest inertia torque of the flat wire, connection of the two ends with a suitable means of connection and then bending at right angles to the plane of the elliptical or circle.  
     
     
         9 . Machine for the manufacture of metallic frames made of round wire or flat wire ( 1 ) which is characterized by the feeding and straightening ( 2 ) mechanism of the round wire or flat wire (), the length measuring instrument ( 3 ) of the fed round wire or flat wire ( 1 ), the length measuring instrument ( 3 ) of the fed round wire or flat wire ( 1 ), the cutter ( 4 ) which cuts and at the same time shapes the ends of the round wire or flat wire suitably ( 1 ), a guide ( 5 ) which consists of two parts, one fixed and one moving freely around a pin ( 17 ), a rotation mechanism ( 8 ) with a jaw ( 7 ) for the production of the suitable open elliptical or circular frame, a connective mechanism ( 6 ) fed by a connective plate or a small tube ( 14 ), an arm ( 13 ) for the transportation of the closed frame from the connective mechanism ( 6 ) to the suitably arranged bending unit ( 9 ), where such bending unit is capable of feeding and bending the closed elliptical or circular frame.  
     
     
         10 . Machine for the manufacture of metallic frames made of round wire or flat wire ( 1 ) as referred to in    claim 9    which is characterized by the feeding and straightening mechanism ( 2 ) of the round wire or the flat wire ( 1 ), the cutter ( 4 ) which cuts and at the same time suitably shapes the ends of the round wire or flat wire ( 1 ), a guide ( 5 ) which consists of two parts, one fixed and one moving freely around a pin ( 17 ), a rotation mechanism ( 8 ) with a jaw ( 7 ) for the production of the suitable open elliptical or circular frame, the connective mechanism ( 6 ) fed by the connective plate of a small tube ( 14 ), the arm ( 13 ) for the transportation of the closed frame by the connective mechanism ( 6 ) to the suitably shaped bending unit ( 9 ), which bending unit is capable of feeding and bending the closed elliptical or circular frame, where such mechanisms are controlled and guided by a microprocessor.  
     
     
         11 . Machine for the manufacture of metallic frames for inner spring mattresses according to    claim 9    which is characterized by that it features an arm ( 13 ) for the transportation of the closed elliptical or circular frame to the suitably arranged bending unit ( 9 ).  
     
     
         12 . Machine for the manufacture of metallic frames for inner spring mattresses according to    claim 9    which is characterized by that it features a bending unit ( 9 ), which is capable of feeding and bending the elliptical or circular closed frame at predetermined points and at predetermined angles so that the frame for inner spring mattresses is produced at the desirable dimensions and shape, where such bending unit is suitably arranged.  
     
     
         13 . Machine for the manufacture of metallic frames for inner spring mattresses according to    claim 9   , which is characterized by that it features cutter ( 4 ) which is capable of cutting and at the same time suitably shaping the ends of the round wire or flat wire ( 1 ) creating suitable incisions to them.  
     
     
         14 . Machine for the manufacture of metallic frames for inner spring mattresses according to    claim 9   , which is characterized by that it features a guide ( 5 ) which consists of two parts, one fixed and one moving freely around a pin ( 17 ) via which the round wire or flat wire is driven ( 1 ).  
     
     
         15 . Machine for the manufacture of metallic frames for inner spring mattresses according to    claim 9   , which is characterized by that it features a connective mechanism ( 6 ) which may intersect with the suitable connective plate or small tube ( 14 ), to wind it and to grasp it around the two ends of the frame under construction and finally to press the connective plate or small tube ( 14 ) so that the material of the connective plate or small tube penetrates into the suitable incisions at the two ends of the frame under construction shaped by the cutter ( 4 ).  
     
     
         16 . Machine for the manufacture of metallic frames for inner spring mattresses according to    claim 9   , which is characterized by that it features an arm ( 8 ) with a jaw ( 7 ), which is capable of moving along a circular or other suitable curved track, thus shaping the round wire or flat wire ( 1 ) of the frame suitably.  
     
     
         17 . Machine for the manufacture of metallic frames for inner spring mattresses according to    claim 9   , which is characterized by that it features a connective mechanism ( 6 ) with two jaws ( 22 , 23 ) suitably arranged so that they may retain the two ends of the round wire or flat wire ( 1 ) of the frame under construction at a suitable position on the connective mechanism ( 6 ).