JPH0612367U - Carrier tape - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] The present invention is a carrier tape in which a large number of concave containers for individually storing components are continuously arranged in the flow direction, and various types of components can be used even if the size of the components changes. It is not necessary to adjust the guide rail width of the automatic machine, and moreover, the parts can be accurately and stably stored and held in the specified positions, and the parts can be deformed during transportation.
Provided is a carrier tape capable of preventing breakage. This carrier tape has stepped portions 7 formed inside one or both side walls 6 in the width direction of the carrier tape 1 of the concave container 3, and the width W of the entire concave portion is set to guide rails 9 and 9 of the carrier tape. According to the width R of.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a carrier tape which is useful for accommodating and transporting a large number of various electronic components, precision instrument components and the like, and continuously supplying the components to predetermined positions.

[0002]

[Prior art]

 Conventional carrier tapes for electronic components, for example, have different sizes for individually storing electronic components a to c having different sizes, as shown in FIGS. A large number of concave containers d to f having a combined width dimension are continuously arranged in the flow direction. These carrier tapes g to i store electronic components a to c in their respective concave containers d to f, and then seal a top tape (not shown below) from above to store them in a roll or store them. Although they can be transported, this series of operations is performed by various automatic machines such as sealing machines.

[0003]

[Problems to be solved by the device]

 As shown in FIG. 4C, when the width C of the concave container is narrowed according to the size of the electronic component and the left and right flange portions F are relatively long, the carrier tape i has a weight of the concave container portion. As a result, the flange portion F easily causes a warp as shown by a dotted line. In order to prevent this, conventionally, the width R of the guide rails j, j for guiding and guiding the carrier tape must often be narrowed (→ R '). This change of the guide rail width R is not only troublesome, but also impairs productivity.

To avoid this, in order to keep the width W of the concave container constant regardless of the change in the size of the electronic component, the bottom of the concave container supporting the electronic component and the upper part of the concave container in contact with the guide rail are to be maintained. The side wall between them must be slanted, which causes the stored electronic components to tilt or fall along the wall surface due to vibration during storage in the carrier tape and during transportation. It may have been deformed or damaged.

Therefore, an object of the present invention is to provide a guide tape for various automatic machines in a carrier tape in which a large number of concave containers for individually storing parts are continuously arranged in the flow direction even if the size of the parts changes. (EN) Provided is a carrier tape which does not need to be adjusted in width and which can surely and stably store and hold a component at a predetermined position to prevent the component from being deformed or damaged during transportation.

[0006]

[Means for Solving the Problems]

 The carrier tape according to the present invention is a carrier tape in which a large number of concave containers for individually storing components are connected in the flow direction, and one or both side walls in the width direction of the carrier tape of the concave container are provided inside the side walls. The feature is that a stepped portion having a width corresponding to the size of the component is formed and the width of the entire concave portion is matched with the guide rail width of the carrier tape.

The details of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a state where the carrier tape of the present invention is wound into a roll. The carrier tape 1 has a large number of concave containers 3 for individually accommodating components 2 in its central portion. In addition to being connected in the flow direction, a small hole 4 for guiding is formed in a row on one side of the flange portion, and normally the upper surface of each concave container 3 is covered with this as shown in the figure. After the flexible top tape 5 is attached, it is wound into a roll and used for transportation and storage.

FIG. 2 is an enlarged cross-sectional view of the carrier tape cut in the width direction at the concave container 3, and FIGS. 2A to 2C show different embodiments of the concave container. That is, (a) shows a concave container 31 for storing a wide component 21, in which a narrow step portion 71 is formed on one side wall 6, and (b) shows a medium width component 22. The concave container 32 has two side walls 6, 6 with slightly wider steps 72, 72 formed at the same height, and (c) shows a concave container 33 for accommodating a narrow component 23. The side walls 6 and 6 have wide steps 73 and 73 formed at different heights, respectively. In addition to the illustrated carrier tape, the carrier tape of the present invention may have different widths on the left and right steps, or may have two or more steps on each side.

In each of the above-described embodiments, the width of each step 71, 72, ... Is determined according to the width of each component 21, 22 ,. Rather, it is supported between both side walls 6, 6 at the bottom of each concave container 31, 32, and is composed of the sum of the width of each concave container 31, 32 and the width of the step 71, 72. The entire width W 1 of the recessed portion is always constant and matches the width R 1 of the guide rails 9 of various automatic machines such as sealing machines.

This will be described in more detail with reference to FIG. 3. In the carrier tape of the present invention, the width C of the concave container 3 that supports the component 2 on the inner surface differs depending on the size of the component 2 to be stored. However, on one or both of the inner sides of the side wall 6 of the concave container 3, a step portion 7 having a width E 1 is formed by the sum of the width C of the concave container 3 and the width E of the step portion 7. It is formed corresponding to the size of the component so that the width W is always constant.

In order to prevent the parts 2 housed in the concave container 3 from falling down or popping out, the height of the step 7, that is, the drop of the inner surface of the concave container 3 from the surface of the step 7 is the height K of the part 2. Since it is said that it is effective to make it 70% or more of the above, when the drop dimension D of the stepped portion 7 from the opening end of the concave container 3 is specifically shown, the height K of the component 2 is about 1.0 mm. When it is less than 0.3 mm, when it is about 5.0 mm it is less than 1.5 mm. However, since the step 7 is provided for the purpose of making the width W of the entire concave portion constant, the dropping dimension D is made proportional to the height K of the component 2 only for this purpose. It is not necessary and can fully function in the range up to 1.0 mm. The width E (or E + E) of the entire step portion is determined by the difference between the width W of the entire concave portion and the width C of the concave container 3. However, when E approaches 0, W and C become equal. there is no problem. Further, the carrier tape of the present invention is shown in FIG. 4 (c) because the flange portion E that contacts the guide rail is connected to the concave container 3 that houses the component 2 through the ribbed step 7. This has the effect of preventing the occurrence of such warpage.

As the carrier tape of the present invention, any one can be adopted as long as it is composed of a thermoplastic plastic sheet conventionally used in this field. These include, for example, sheets of polyvinyl chloride, polyethylene terephthalate, polycarbonate, polystyrene, polybutylene terephthalate, polypropylene, etc. (including conductive filler kneaded products and conductive coated products, respectively). .

[0013]

[Action]

 In the carrier tape of the present invention, a step is formed inside one or both side walls in the width direction of the carrier tape of the concave container, and the width of the entire concave part is adapted to the width of the guide rail of the carrier tape. It is not necessary to adjust the guide rail width even if the size of the parts changes, and the parts can be accurately and stably stored and held in the prescribed positions.

[0014]

【Example】

 Example 1 A hard vinyl chloride sheet having a thickness of 0.3 mm and a width of 24 mm (carbon added as a conductive filler) was used, the pitch in the flow direction of the concave container was 12 mm, and the width W of the entire concave portion in the width direction of the carrier tape was W. : 10.8 mm, concave container width C: 9.5 mm and 7.3 mm, step drop size D: 0.8 mm, two types of concave containers shown in FIG. The carrier tape was prepared by press molding. When these carrier tapes were put on a sealing machine, they could be transferred smoothly without adjusting the guide rail width (12.8mm), and when the electronic parts were stored in the carrier tapes, they could be accurately and stably placed in their predetermined positions. It could be stored and held, and the electronic parts were not deformed or damaged by tilting or falling in each concave container.

Example 2 Using a polystyrene sheet having a thickness of 0.4 mm and a width of 44 mm, the pitch in the flow direction of the concave container: 12 mm and 16 mm, the width W of the entire concave portion in the width direction of the carrier tape: 34 mm, the concave shape Two types of carrier tapes having container widths C of 24.5 mm and 31.5 mm and stepped drop size D of 0.5 mm were prepared in the same manner as in Example 1. When these carrier tapes were applied to a parts conveying machine, they could be applied without adjusting the guide rail width (36 mm).

Example 3 An electrically conductive amorphous polyethylene terephthalate sheet having a thickness of 0.3 mm and a width of 44 mm was used, and the pitch in the flow direction of the concave container was 24 mm, 28 mm and 32 mm, in the width direction of the carrier tape. Three types of carrier tapes having a width W of the entire concave portion of 27 mm, a width C of the concave container of 13 mm, 18 mm and 24 mm, and a dropping dimension D of the stepped portion of 0.6 mm were prepared in the same manner as in Example 1. When these carrier tapes were applied to a sealing machine, they could be smoothly transported along the guide rail width (36mm), and the top tapes could be attached after storing electronic components without adjusting the guide rail width.

[0017]

[Effect of device]

 According to the carrier tape of the present invention, since the width of the entire concave portion is constant, it is not necessary to adjust the guide rail width due to the difference in the size of the parts, and the parts can be exchanged as they are with the same machine. Since it can be accurately and stably stored and held in the position, the parts will not be deformed or damaged during transportation, and the flange part can be prevented from warping.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a carrier tape according to the present invention.

FIG. 2 is an enlarged vertical cross-sectional view of a main part of the carrier tape shown in FIG. 1, in which (a) to (c) show different modes thereof.

FIG. 3 is an explanatory diagram of an enlarged vertical cross-sectional view of the main part shown in FIG.

FIG. 4 is an enlarged vertical sectional view of a main part of a conventional carrier tape, in which (a) to (c) show different modes thereof.

[Explanation of symbols]

1 ‥‥‥‥‥‥‥‥‥‥‥ Carrier tape, 2, 21, 22, 23 ‥
Parts, 3, 31, 32, 33 ... concave container, 6 ...
... Side wall (of concave container), 7, 71, 72, 73 ... Step,
9 ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥
Width of entire concave portion, width of guide rail.

Claims (1)

[Scope of utility model registration request] 1. A carrier tape comprising a large number of concave containers for accommodating parts individually arranged in the flow direction, wherein the size of the parts is inside one or both side walls of the concave container in the width direction of the carrier tape. A carrier tape characterized in that a step portion having a width corresponding to the height is formed and the width of the entire concave portion is matched with the guide rail width of the carrier tape.