Winding core, winding reel and band-winding method

Abstract

Provided are a winding core, a winding reel and a band-winding method, which are capable of preventing the band from being easily bent in a certain direction when the band is inclined to generate a difference in winding length, causing strain in winding around the band. When a carrier tape (10) is traversely wound on a curved peripheral surface (2), the peripheral surface (2) is inclined radially outward with movement from one end section toward the other end section by a cylindrical winding core (1) which overlaps one side section of the carrier tape (10) on the other side section of the wound carrier tape (10) and winds the overlapped carrier tape (10), and an inclination (?) of the peripheral surface (2) is made to base on 0< [theta]<=2arctan (the thickness / traverse pitch of the carrier tape). The peripheral surface (2) of the winding core (1) is inclined in the opposite direction from the inclination of the overlapped section of the carrier tape (10), thus making it possible to relax the inclination of the overlapped section of the carrier tape (10).

Description

technical field [0001] The present invention relates to a winding core used for winding a tape such as a carrier tape, a winding reel, and a tape winding method. Background technique [0002] The carrier tape used for mounting electronic components on the circuit board is wound on the winding core of the winding reel. Here, in the production process of the carrier tape and the storage process of the electronic components, from the viewpoint of reducing the replacement frequency of the winding reel and improving production efficiency, a longer carrier tape is wound. Such as Figure 21 and Figure 22 As shown, such a winding reel includes a winding core 1A and a carrier tape 10 that is wound on the winding core 1A so as to move laterally and accommodates a plurality of electronic components. [0003] Such as Figure 21 and Figure 22 As shown, the winding core 1A is formed in a cylindrical shape, has flanges 3 on both left and right end faces, and has a width larger than th...

AI Technical Summary

Problems solved by technology

[0009] The existing reel for winding is constituted as described above, and is wound in such a manner that one side of the carrier tape 10 is simply overlapped with the other side of the already wound carrier tape 10 . In overlapping winding, the side portion of the carrier tape 10 is inclined with respect to the peripheral surface 2A of the winding core 1A, and the winding length is different, and the carrier tape 10 is easily deformed and bent in a certain direction in the package.

[0010] As a result, errors may occur when positioning the pocket 12 of the carrier tape 10 and inserting the electronic component into the pocket 12, affecting the operation of bonding the cover tape to the surface of the band 11 of the carrier tape 10, and making it impossible to insert the electronic component during mounting of the electronic component. The carrier tape 10 is pulled out smoothly

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