JPS5974846A - Long-sized object conveying device - Google Patents

Abstract

PURPOSE:To effect conveyance of a long-sized object in a condition to normally hold high position precision, by a method wherein a press contact part, making press contact with a long-sized object, is mounted on the outer peripheral surface of a convey roller, and a regulating part, by which movement of the long-sized object is regulated to a specified position, is installed. CONSTITUTION:A long-sized object, for example, an electric connector, is produced such that a string 2 of a contact, whereto a male contact 1 is aligned, is conveyed to a plating device, and after a partial gold-plating is applied on a contact part 1a, a coupling part 2a is cut off. In this case, a plurality of elastic projections 10, which are slanted at same angle and in a conveying direction A, are provided on the outer peripheral surface of a drive roller 3 for conveying the coupling part 2a. Further, a brim part 11 for controlling the upper end surface of the coupling part 2a is formed on the upper surface of a press roller 4 which presses the coupling part 2a against the elastic projections 10. This enables the string 2 of the contact to be conveyed in condition in which high position precision is normally held, and permits the contact part 1a to be partially plated reliably and accurately even if the string 2 of the contact is of a small size.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device that can transport a long object without causing positional shift, such as when transporting a strip to be plated to a plating processing device.

Conventionally, the following methods have been used to manufacture electrical connectors. That is, by punching and simultaneously bending a long strip material, for example, as shown in the perspective view shown in FIG. For example, after pickling and washing with water, tension is applied to the contact chain (2) using the drive roller (3), its press roller (4), guide rollers (5), (6), etc., as shown in the perspective view of Figure 2. Menki device (7) continuously at a constant speed while applying
Then, as shown in FIG. 1(a), the contacts are partially plated with gold (1a). Then, as shown in the side view shown in FIG. 1(b), the contact chain (2) cut to have the required number of contacts (1) is inserted and fixed into the fixing hole of the insulating block (8), and then Finally, the connecting part (2a)
This method is made by cutting off as shown by the dashed line in the figure.

This method is important as a mass production method for connectors, and because gold plating is applied only partially to the contact areas necessary for contact, manufacturing costs are reduced compared to the conventional method of plating the entire contact. There are advantages that can be achieved. However, in this case, it is an important prerequisite that the contact area of each contact be accurately selectively plated with gold, and for this purpose, the plated area of the contact must always be accurately positioned on the electrode area of the plating equipment. In particular, when the contacts are small such as connectors for communication equipment, even higher positional accuracy is required.

However, the conveyance method using rollers, which is commonly used in the past, that is, the guide hole (2b) provided in the longitudinal direction of the connecting part (2a) as shown in FIG. In the method of feeding using a driving roller (3) provided with a circumferential guide pin (3a) as shown in FIG. Insert the guide pin (3a) in a straight line, keeping the exact same spacing as the guide hole (2a) set in the hole.
It is also difficult to provide a gap between the guide hole (2a) and the guide pin (3a).

For this reason, as shown by the dotted line in the side view of FIG. 4, the position of the contact chain (2) relative to the plating electrode (9) constantly changes, making it difficult to perform partial plating at an accurate position. Of course, it is possible with current technology to provide the guide pin (3a) exactly at the required position, but this has the disadvantage that the drive roller (3) is expensive. In addition, the dimensions and installation spacing of the guide holes can be changed depending on the thickness of the contact, etc., but in order to accommodate this, it is necessary to have multiple types of drive rollers (3), and they must be replaced each time. The disadvantage is that it requires a lot of troublesome work. Another method is to use clips fixed at intervals on an endless belt to insert and feed the contact series, but this method is more troublesome to handle than the method using driven rollers. However, since it is difficult to make clips with the same accuracy, the positional accuracy is further reduced compared to the method using a drive roller having a guide pin as described above.

The present invention has been made for the purpose of providing an apparatus capable of conveying a long object while always maintaining higher positional accuracy than the above-mentioned conventional method, and the details thereof will be explained below with reference to the drawings.

5(a) and 5(b) are a plan view and a side view showing an embodiment of the present invention, and FIG. 6 is a developed side view of a drive roller.The features thereof are as follows.

That is, instead of the guide pin of the drive roller (3) described above in FIG.
A plurality of elastic protrusions (for example, made of rubber) with the same inclination are connected to the upper end surface of one protrusion flol and the next protrusion 0
0) are positioned at least in a straight line or overlap with each other. In addition, on the upper surface of the presser row')-(4), which is arranged horizontally with the drive roller (3) and presses the connecting portion (2a) into contact with the elastic protrusion 00), there is a presser row with the contact (1) facing down. Flange part 0 for regulating the upper end surface position of the connecting part (2a) inserted between the drive roller (3) and the drive roller (3)
This is characterized by the provision of υ.

In this way, the driving roller (3) can be moved to the elastic protrusion (10
), that is, in the counterclockwise direction as shown by arrow B in the figure, the connecting portion (2a
) and the elastic protrusion α0, the position of the contact part o2 shown by diagonal lines is
As shown by the arrow C in the figure, the connection part (2a) changes from the upper end to the lower end, and then changes from the lower end to the upper end of the next elastic protrusion 00 (as shown by the arrow C in the figure). It is sent in the direction B, that is, the rotation direction of the drive roller (3).

On the other hand, when the drive roller (3) is rotated counterclockwise, the pressing roller (4) pressed against it causes the elastic protrusion 00 on the right side of the contact portion 02 to
) is stretched downward to the left, the protrusion 00) exerts a force that tends to contract, that is, a force that tends to pull up the connecting portion (2a) upward and to the right, which is shown in the direction of the arrow shown in FIG. arise. In addition, as the elastic protrusion 05 on the left side of the contact part 05 is compressed downward to the left, the force that tends to extend, that is, the seventh
As shown by the arrow E in the figure, a force is generated which tends to push the connecting portion (2a) upward and to the right. This force acts continuously while the drive roller (3) is rotating, but as mentioned above, the upper peripheral edge of the presser roller (4) has a connecting portion (
2a) A flange (11) for regulating the upper position is provided, and the upper end of the connecting part (2a) is constantly in contact with the lower surface of the flange αυ due to the upward pulling force to the right, so that the position remains constant. Regulated. Therefore, if the pulling force to the upper right is selected to overcome the fall of the contact chain due to its own weight, the contact chain (2) will be driven while accurately maintaining the constant height given by the flange 0υ. The direction of rotation of the roller (3) (1 is fed (-).

Therefore, the positioning accuracy is improved compared to the conventional method of feeding guide holes in the connecting part using guide pins of drive rollers, and even if the contacts are small, partial plating can be applied reliably and accurately to the contact parts. can.

In addition, in the above, the flange part 01) is attached to the presser roller (4), and the connecting part (2a) is attached to the presser roller (4) as shown in the plan view shown in FIG.
can be wrapped around it to omit the presser roller (4). In this case, it goes without saying that it is necessary to provide a position regulating plate in place of the flange (+1) of the presser roller (4) above the connecting part (2). Further, as shown in the plan view shown in FIG. 8(b), it is also possible to use two presser rollers (4), and one presser roller (4) is driven by a driving roller (3).
You can use two pieces, each with a flange (+1) for position regulation.
Alternatively, the presser roller (4) may be provided with an elastic protrusion 0(1).

In addition, the inclination angle of the elastic protrusion (l [l+) can be freely selected within the angle below 96, depending on the required conveying force,
The spacing can also be selected depending on the conveying force. In addition, although the surface of the protrusion is flattened in the above example, many wart-like protrusions may be provided.
Modifications are possible, such as making grooves or other uneven surfaces to increase friction, or making the center part the highest so that contact occurs at this part. Furthermore, the roller can be made integrally of plastic such as rubber, or only the outer peripheral part of the roller can be made of plastic and the rest can be made of metal, ceramic, etc., and it can also be made conductive and become part of the current-carrying part. .

Furthermore, although the above description has been made by taking as an example the partial plating of a contact series, the present invention can generally be applied to the transportation of long objects that require transportation that requires positional accuracy. In this case, if the weight of the object to be conveyed is large and it is not appropriate to obtain the fence feeding force by rollers, the conveying force for the long object is obtained by another drive device, and only the holding is performed using the drive roller (3) of the present invention. Presser foot roller (4)
You can do it by In this case, the drive roller (3)
The direction in which the long object is conveyed is opposite to the direction in which the elastic protrusion 00) is inclined, and the long object held on the bow ηi+/l: protrusion QO) is moved upward (1 lift J). drive roller (3)
rotation (it is necessary to apply a ?1rll motion of 5 degrees to 2).

As is clear from the above description, the present invention (2) is for transporting long objects while maintaining high positional accuracy, and is highly effective when applied to continuous partial plating.

[Brief explanation of the drawing]

Figures 1(a) and 1(b) show -f+ of the method of manufacturing an electrical connector.
Fig. 2 is a perspective view schematically showing the process of continuous plating, Fig. 3 is a plan view showing -fl of the conventional conveyance method, and Fig. 4 is a partial plating (two plated coating). Side view showing the positional relationship between the plating strip and the plating electrode, Fig. 5(a)
(b) is a plan view and a side view showing an embodiment of the present invention;
Figures 6 and 7 are developed diagrams for explaining the positional relationship between the drive roller and the contact chain and the connecting portion (2 m) < bow 1 lifting force, and Figures 8 (a) and (b) are modified tb examples of the present invention. FIG. (1)...Female contact, (la)...Partially plated part, (2)...Contact chain which is the conveyed object, (2a)...Connection part, (2b)... ... Guide hole, (3) ... Drive roller, (3a)
... Guide pin, (4) ... Presser roller, (
5) (61...Guide roller, (7)...Plating device, (9)...Plating electrode, (8)...
Insulation block of carp lid, (10)...Elastic protrusion, fil)...Flame for regulating the upper end position of the transported material (connection part), 02)...Elastic protrusion and cover Contact part of conveyed material (connection part). Patent applicant Dai-ichi Denshi Kogyo Co., Ltd. 1 Kasumi (b) □□□2 Figure exposed 3 Kasumi Tsuji 4 Figure 0

Claims (1)

[Claims] Drive rollers provided at continuous spacing on the outer circumferential surface of the striped elastic protrusions inclined in the conveying direction, a pressure contact portion that presses the long object to be conveyed against the outer circumferential surface of the striped elastic protrusions, and conveys the long object. What is claimed is: 1. A long object conveying device comprising: a regulating section that restricts movement of a long object to a fixed position in an axial direction of a drive roller that is rotated so as to feed the long object.