Target blocks of a dartboard and its formation mechanism

Abstract

Disclosed is a target block of the dartboard, wherein said target blocks are assembled in the dartboard frame of the circle target blocks with different shapes, which can be replaced individually; the said interior target materials of the target blocks are made of sisals or similar materials. Through the formation mechanism, a predetermined amount of target materials (sisals) are disposed in the bottom of mounting seat applied with the adhesive in advance to joint the sisals and mounting seat as a whole. The target blocks put in the dartboard frame of the target blocks are in the centric circles and the same fan-shaped radial strip, which has two different colors at intervals to distinguish the blocks from each other.

1 . A target block of the dartboard, wherein the dartboard comprises a dartboard frame composed of a plurality of concentric ribs and radially extending rectilinear ribs which are intersected with the concentric ribs, which defines a plurality of receiving recesses in different shapes, wherein a sectional target block can be disposed in each receiving recess; the target block is characterized in:
 the target materials in the internal of said sectional target blocks are made of sisals by disposing a predetermined amount of sisals at the bottom of the mounting seat applied with adhesive in advance through a formation mechanism, so that the sisals can be adhered to the mounting seat and the entirety can be replaced separately.   
   
   
       2 . A target block of the dartboard, wherein the dartboard comprises a dartboard frame, wherein a plurality of concentric ribs and radially extending which are intersected with the concentric ribs define a plurality of receiving recesses in different shapes for fitting in with a plurality of sectional target blocks according to their respective shape; said sectional target blocks are characterized in:
 the surface of said plurality of sectional target blocks is colored respectively and when each target block is disposed in the receiving recess, the same centric circles and same target blocks of the fan-shaped radial strip has two different colors to distinguish the blocks from each other.   
   
   
       3 . The target blocks of the dartboard as claimed in  claim 2 , wherein said plurality of sectional target blocks in different shapes which are disposed in the same score area have different surface colors; sectional target blocks in the same shape located in different score areas while adjacent to each other have different colors one by one. 
   
   
       4 . A formation mechanism for forming the dartboard block as claimed in  claim 1 , wherein the mounting machine of said forming mechanism is provided with a material mount trough, a trim knife, a X-axis push rod, plurality sets of bevel angle push rod, at least a Y-axis push rod and a turntable; among these, the mount trough is set vertically to stack plurality bundles of sisals so that each bundle of sisals are produced into sectional target blocks; the trim knife is connected to the retractable arm of the cylinder, which enables the cylinder to drive the trim knife to trim the bundles of sisals; the X-axis push rod is connected to the retractable arm of the cylinder, which is driven by the cylinder to push the sisal bundles; the equal bevel angle push rod has a pressure plate and the bevel angles are set according to the producing shape of the target blocks; the equal bevel angle push rod is connected to the retractable arm of the cylinder, which was driven by the cylinder to extrude the sisal bundles; the Y-axis push rod is set on the turntable and connected to the retractable arm of the cylinder which is driven by the cylinder to position the sisals into the mounting seat of the turntable in connection with a servo motor which can drive the turntable to rotate intermittently; the turntable has several fixing tools including a mounting seat which is pre-applied with the adhesive for the sisals positioning and adhering. 
   
   
       5 . The formation mechanism as claimed in  claim 4 , comprising the following manufacturing procedures:
 (a) firstly, comb the sisal materials used for the target materials to smooth and pick off the bad sisals;   (b) bind the sisals with bundle strip into a bundle to become a block;   (c) position the bundles of sisals into a mounting machine so that the bundles of sisals are cut into a predetermined shape, extrude it into proper tightness using the pressure plate of the mounting machine and press it into a mounting seat, and joint it into a sectional target blocks by running through adhere in the mounting seat;   (d) trim the deckle edge of each sectional target blocks to avoid the over lengthy sisals from protruding;   (e) apply different colors on the sectional target blocks to distinguish the different score blocks;   (f) assemble each sectional target blocks in the receiving recess of the dartboard frame, which forms a dartboard.