Automatic shaping method and structure of fin and connection element

Abstract

The present invention provides an automatic shaping method and structure of fin and connection element. A feeder drives a material belt to enter a punch having a continuous die. The material belt passes a guide device, a bottom die, and a top die of the continuous die to perform operations of punching a central hole, shaping of outer appearance, and hole expansion and drawing. After an a period's interval, the top die is used to shear the material belt, and a pressure piece moves downwards for side shearing. At the same time of shearing, shaped sheet fins are pressured onto the connection element. A stepping device drives the pressure piece to stack the fins on the connection element one by one. The connection elements are arranged at the feeder. The connection element is sent into a positioning device one by one. After the fins are stacked, automatic replacement is performed.

I claim:  
     
         1 . An automatic shaping method of fin and connection element comprising the steps of: 
 (a) sending a material belt into a punch;    (b) performing shaping by continuous punching in the punch;    (c) initially shearing the material belt;    (d) shearing again the fin side of the material belt with a pressure piece to form sheet fins;    (e) driving the pressure piece to take the sheet fins to move downwards along a connection element; and    (f) stacking the sheet fins on the connection element one by one.    
     
     
         2 . The automatic shaping method of fin and connection element as claimed in  claim 1 , wherein said steps of (b) and (c) are spaced at a period of shaping by continuous punching.  
     
     
         3 . The automatic shaping method of fin and connection element as claimed in  claim 1 , wherein the pressure piece in said step (e) is driven in stepping way to recede a small distance each time.  
     
     
         4 . The automatic shaping method of fin and connection element as claimed in  claim 1 , wherein positioning of the connection elements is performed in said step (e).  
     
     
         5 . The automatic shaping method of fin and connection element as claimed in  claim 4 , wherein the connection elements are arranged in a row and are pushed in stepping way so that only one connection element enters the sheared position and is then positioned each time.  
     
     
         6 . The automatic shaping method of fin and connection element as claimed in  claim 5 , wherein the positioning is achieved by clamping in opening/closing or insertion/extrusion way.  
     
     
         7 . The automatic shaping method of fin and connection element as claimed in  claim 5 , wherein the height of the connection element can be adjusted.  
     
     
         8 . The automatic shaping method of fin and connection element as claimed in  claim 1 , wherein the shaping by punching means performing operations of punching a central hole, shaping of outer appearance, and hole expansion and drawing on the material belt between a top die and a bottom die.  
     
     
         9 . The automatic shaping method of fin and connection element as claimed in  claim 1 , wherein an action of punching and bending the edge is further included after the outer appearance is formed.  
     
     
         10 . An automatic shaping structure of fin and connection element comprising: 
 a punch;    a winder for leading a material belt to enter said punch;    a continuous die in said punch and having a bottom die and a top die, said top die having a shearing portion and a plurality of punching portions;    a pressure piece disposed beside said top die and joined with a push device and a stepping control device, a shearing interface being formed between a side of said pressure piece and a periphery of said bottom die; and    a positioning device of connection element joined in said punch and situated outside a distal end of said bottom die of said continuous die, a connection element being positioned at said positioning device exactly below said pressure piece, said pressure piece being driven to stack punched sheet fins on said connection element one by one.    
     
     
         11 . The automatic shaping structure of fin and connection element as claimed in  claim 10 , wherein a guide device is disposed on said bottom die so that the material belt can move between them.  
     
     
         12 . The automatic shaping structure of fin and connection element as claimed in  claim 10 , wherein said connection elements are arranged at a feeder, and said feeder is used to send said connection elements into said positioning device of connection element one by one.  
     
     
         13 . The automatic shaping structure of fin and connection element as claimed in  claim 12 , wherein said feeder has a slide piece, and said slide piece has a container for receiving a row of said connection elements, said slide piece being joined with a stepping push rod, two upper sides of said container being abutting walls of connection element, a clamping positioner driven by a hydraulic cylinder being at one side of the abutting walls.  
     
     
         14 . The automatic shaping structure of fin and connection element as claimed in  claim 13 , wherein said stepping push rod of said feeder is driven by a stepper motor.  
     
     
         15 . The automatic shaping structure of fin and connection element as claimed in  claim 12 , wherein said feeder has an adjustment baffle, and an upper end of said adjustment baffle contacts a lower end of said connection element.  
     
     
         16 . The automatic shaping structure of fin and connection element as claimed in  claim 15 , wherein a height adjustment mechanism is joined at a lower end of said adjustment baffle on said feeder.  
     
     
         17 . The automatic shaping structure of fin and connection element as claimed in  claim 10 , wherein said stepping control device is a small stepper motor to control the retraction and extension stroke of said pressure piece.  
     
     
         18 . The automatic shaping structure of fin and connection element as claimed in  claim 10 , wherein said push device is a hydraulic cylinder.