JPH05149315A - Parts carrier tape - Google Patents

Abstract

PURPOSE:To provide a parts carrier tape from which a headed bar is smoothly taken out when the headed bar which cannot be air-supplied are continuously supplied. CONSTITUTION:Embossings 3 are provided on a resin-made emboss carrier tape 2 with a specified distance, which embossing 3 has a rectangular sectional shape for housing a head of a desired headed bar. A bottom of the embossing 3 is formed by a tapered surface 3a, while a lower hole 3b slightly larger than a diameter of a leg of the headed bar is formed on the bottom of the embossing. The leg of the headed bar is projected from the lower hole 3b. In case that the headed bar is taken out from the embossing 3 of the embossing carrier tape 2 and a suction sleeve is abutted against the embossing carrier tape 2 for suctioning air, air is flowed from gaps between the tapered surface 3a and a head bearing surface, generated on four corners of the bottom of the embossing 3 in the direction from the leg to the head of the headed bar. The headed bar is smoothly attracted into the suction sleeve.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screw having a short leg length with respect to the head diameter, or a headed rod member such as a rivet which cannot be fed with air, continuously provided to an automatic machine such as a screwing machine. The present invention relates to improvement of a component carrier tape which can be supplied.

[0002]

2. Description of the Related Art Conventionally, a screw or rivet having a short leg length with respect to the head diameter may be reversed in the hose during feeding, so that air feeding is impossible. When continuously supplying small parts such as rods or electronic parts to an automatic machine, a part carrier tape in which parts are housed in embossed parts arranged in a line is used. In this type of component carrier tape, when the embossed part that stores the component has a cross-sectional shape that corresponds to the shape of the component, if a suction surface such as a suction sleeve that can contact the component is secured to the component The parts can be adsorbed without any trouble and moved to a predetermined position, which greatly contributes to the automation of parts assembling work.

[0003]

However, when the component is a rod with a head such as a screw or a rivet, as shown in FIG. 5, it is possible to obtain a sufficient suction surface on the upper surface of the head. As described above, the component carrier tape 1 including the embossed carrier tape 2 having the embossed portion 3 having a circular cross section corresponding to the head shape of the headed rod 8 and the top cover tape 5 covering the upper surface thereof is used. Therefore, in order to take out the headed rod 8 from the embossed portion 3, the suction sleeve 7 of the suction unit (not shown) is positioned on the embossed carrier tape 2 so as to cover the embossed portion 3 and perform air suction. Although it must be done, the passage of air from the leg side to the head side of the headed rod 8 is narrow, and the embossed portion 3
Has a horizontal surface and is firmly adhered to the bottom of the headed rod 8 so that the amount of air movement during suction is small, and the headed rod 8 does not come off smoothly from the embossed portion 3, etc. Has the drawbacks of.

The present invention is intended to eliminate the above-mentioned drawbacks, and is constructed so that the headed rod can be smoothly taken out when continuously feeding the headed rod which cannot be air-fed. It is intended to provide a component carrier tape.

[0005]

To achieve the above object, a resin embossed carrier tape is provided with an embossed portion for accommodating the head of a desired headed rod at a predetermined interval. The cross-sectional shape of the embossed portion is formed in a rectangular shape, and the bottom portion of the embossed portion is formed of an inclined surface that is inclined toward the prepared hole. Further, a pilot hole slightly larger than the leg portion of the headed rod is bored in the bottom of each of the embossed portions, and the leg portion of the headed rod is housed so as to project from the pilot hole. .. Further, a top cover tape is attached to the embossed carrier tape so as to cover the embossed portion so that the headed bar does not drop.

[0006]

In the above component carrier tape, when the embossed carrier tape is supplied to the predetermined take-out position of the automatic fastening machine with the top cover tape removed, the suction sleeve of the suction unit provided in the automatic fastening machine is embossed. Contact the carrier tape. In this state, when air is sucked from the suction sleeve, there is a sufficient gap between the four corners of the embossed part and the head of the headed rod, so the leg side of the headed rod passes through this gap. Air flows to the head side of the headed bar, and the headed bar is sucked with a strong suction force and quickly sucked into the suction sleeve.

[0007]

EXAMPLE An example of a component carrier tape for supplying a screw as an example of a headed rod will be described below. 1 to 3, reference numeral 1 denotes a component carrier tape, which has an embossed carrier tape 2 in the form of a resin band. The embossed carrier tape 2 is provided with a plurality of embossed portions 3 arranged in a row at predetermined intervals, and the embossed portions 3 are configured to accommodate the heads of screws 4 described later. The cross-sectional shape of the embossed portion 3 is formed in a rectangular shape having one side larger than the head diameter of the screw 4, and the bottom portion of the embossed portion 3 forms a substantially square pyramid as it goes downward. It is composed of an inclined surface 3a that is inclined, and is configured to have gaps at four corners between the head 4 and the head seat surface of the screw 4. In addition, a prepared hole 3b into which the leg portion of the desired screw 4 can be inserted is bored at the center position of the bottom of the embossed portion 3, and the screw 4 has its head at the bottom portion in the embossed portion 3. It is accommodated by being locked to the inclined surface 3a and protruding its leg portion from the prepared hole.
Further, the embossed carrier tape 2 has a film-shaped top cover tape 5 so as to cover the embossed portion 3.
Is attached so that the screw 4 does not drop from the embossed portion 3 during the transfer of the component carrier tape 1. The embossed carrier tape 2 is provided with pitch holes 6 in a row at a predetermined interval so that the embossed carrier tape 2 can be supplied at a predetermined pitch.

[0008]

In the above component carrier tape, as shown in FIG. 4, the embossed carrier tape 2 with the top cover tape 5 removed removes the embossed carrier tape 2 from the automatic screwing machine (not shown). When supplied to the position,
The suction sleeve 7 advances together with the driver bit (not shown) and contacts the embossed carrier tape 2. In this state, a suction mechanism (not shown) communicating with the suction sleeve 7
Is activated and air at the tip of the suction sleeve 7 is sucked, the screw 4 begins to be sucked with a strong suction force. This screw 4
Is slightly lifted, there are sufficient gaps at the four corners of the embossed portion 3, so that air can smoothly flow into the head seat surface of the screw 4 and move into the suction sleeve 7, and the screw 4 can be moved to the tip of the suction sleeve 7. Can be easily adsorbed on. In the embodiment, the embossed portion does not need to have a rectangular cross section if slot grooves are provided at a plurality of locations on the bottom of the embossed portion 3 or a plurality of communication holes are provided at the four corners of the bottom.
The bottom surface may be flat or conical.

[Brief description of drawings]

FIG. 1 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 2 is a plan view of an essential part of the present invention.

3 is an enlarged sectional view taken along line BB of FIG.

FIG. 4 is an enlarged sectional view of an essential part showing an operating state of the present invention.

FIG. 5 is a plan view of an essential part showing a conventional example.

[Explanation of symbols]

 1 parts carrier tape 2 embossed carrier tape 3 embossed part 3a inclined surface 3b prepared hole 4 screw 5 top cover tape 6 pitch hole 7 suction sleeve 8 bar with head

Claims (1)

[Claims] 1. An embossed carrier tape made of resin is provided with an embossed portion for accommodating a head portion of a desired headed rod material at a predetermined interval, and each of the bottom portions is slightly larger than a leg portion of the headed rod material. A part in which a prepared hole is formed and a bar with a head is housed in the embossed part so that its leg part projects from the prepared hole, and a top cover tape is attached to the embossed carrier tape so as to cover the embossed part. In the carrier tape, a cross-sectional shape of the embossed portion is rectangular, and the bottom of the embossed portion is an inclined surface that is inclined toward the prepared hole.