JPH0597223A - Parts carrier - Google Patents

Abstract

(57) [Summary] [Purpose] Even if the stop position of a part is slightly displaced, there is no hindrance to conveyance, and speeding up is possible. In a parts conveying device for conveying parts at a constant pitch, a front conveyor plate 110 having notches 111 sufficiently larger than a length dimension c of a conveyed part 300 at a constant pitch, and a front conveyor plate 110 A rear carrier plate 120 having the same shape as the plate 110 and facing each other, and both of these carrier plates 110, 120.
And a drive unit for moving the component 300 along the transport rail 200 on which the component 300 is placed, and when the movement at a constant pitch is completed, the component 300 is moved to the front edge of the notch 111 of the front transport plate and the rear edge. In order to be sandwiched with a slight gap between the rear edge of the notch 121 of the carrier plate 120, the moving distance of the front carrier plate 111 is set to the rear carrier plate 12.
It is set shorter than the travel distance of 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component transporting device for transporting components at a constant pitch, and in particular, a semiconductor integrated circuit is fixed in a mark marking step, which is one of the manufacturing steps of a semiconductor integrated circuit, and an appearance inspection step. The present invention relates to a component transfer device that transfers at a pitch of.

[0002]

2. Description of the Related Art A conventional component conveying apparatus of this type will be described with reference to FIGS. In this type of component transport device, the components 300 are transported at a constant pitch while sliding on the transport rail 200. For this purpose, the carrier plate 400 provided above the carrier rail 200 is indicated by an arrow A in FIG.
The arrow is moved in the direction of arrow D. That is, the carrier plate 400 descends in the direction of arrow A, and the component 300 is placed in the notch 410. In this state, the carrier plate
400 moves in the direction of arrow B by a distance corresponding to a certain pitch and conveys the component 300. When the transportation of the component 300 is completed, the transport plate 400 rises in the direction of arrow C and separates from the component 300. Then, the carrier plate 400 moves in the direction of arrow D,
Return to the initial state. By repeating this operation, the component 300 is conveyed in the direction of arrow B at a constant pitch.

[0003]

However, the above-described conventional component transfer apparatus of this type has the following problems. That is, the notch 41 formed in the carrier plate 400.
The dimension a of 0 is set to be slightly larger than the length dimension c of the component 300 in order to minimize the error in the stop position of the component 300. Therefore, if the stop position of the component 300 shifts slightly on the transport rail 200 due to external force such as vibration or wind pressure, the component 300 may not fit in the notch 410 of the transport plate 400 in the next transport operation. become. Further, the notch 410 needs to be formed with high precision for the same reason.

Further, in order to solve such a problem,
As shown in FIG. 7, in some cases, the dimension b of the notch 510 of the carrier plate 500 is set to be sufficiently larger than the length dimension c of the component 300. However, with such a carrier plate 500, even if the stop position of the component 300 is slightly displaced by some external force, the component 300 can be accommodated in the notch 510, but
When the transport speed of 300 is increased, even after the transport plate 500 is stopped, inertial force acts on the component 300, so it is not known where the component 300 stops in the notch 510 (see FIG. 8). For this reason, the moving speed of the carrier plate 500 is reduced so that the rear edge of the notch 510 contacts the component 300 after the completion of the movement. However, this has a problem that the speed cannot be increased.

The present invention was devised in view of the above circumstances, and an object of the present invention is to provide a parts conveying apparatus which does not hinder the conveyance even if the stop position of the parts is slightly deviated and is capable of speeding up. I am trying.

[0006]

According to the present invention, there is provided a component transporting apparatus for transporting components at a constant pitch, wherein a notch sufficiently larger than the length of the transported component is formed at a constant pitch. A front carrier plate, a rear carrier plate having the same shape as the front carrier plate and facing each other, and a drive unit for moving these both carrier plates along a carrier rail on which parts are placed. In order to be sandwiched with a slight gap between the front edge portion of the notch of the front carrier plate and the rear edge portion of the notch of the rear carrier plate, when the movement of the constant pitch is completed, The moving distance of the front carrier plate is set shorter than the moving distance of the rear carrier plate.

[0007]

1 is a schematic perspective view showing a parts conveying apparatus according to an embodiment of the present invention, FIGS. 2 to 5 are drawings showing a conveying procedure by the parts conveying apparatus, and FIG. 2 is an initial state. FIG. 3 is an explanatory view showing a state where the parts are accommodated in the cutouts of the conveying plate, FIG. 4 is an explanatory view showing a state where the conveying plates convey the parts, and FIG. 5 is a state where the parts are completely conveyed. FIG. It should be noted that parts that are substantially the same as those of the related art will be denoted by the same reference numerals in the following description.

The component transporting apparatus according to the present embodiment is a component transporting apparatus for transporting components at a constant pitch, in which notches 111 that are sufficiently larger than the length c of the transported component 300 are formed at a constant pitch. Front transport plate 110 and a rear transport plate 12 that has the same shape as the front transport plate 110 and is provided to face each other.
0, and a drive unit (not shown) that moves both of the transport plates 110 and 120 along the transport rail 200 on which the component 300 is placed.

A concave groove 210 corresponding to the width dimension of the component 300 is formed in the center of the transport rail 200. The part 300 is
The paper is conveyed while being guided by the concave groove 210. In the drawings, the component 300 is simply drawn in a rectangular parallelepiped shape, but since a semiconductor integrated circuit with leads protruding is actually conveyed as the component 300, a groove for accommodating the leads is provided beside the recessed groove 210. Has been.

On the other hand, the front carrier plate 110 has notches 111 formed at a predetermined pitch. The notch 111 is set to be sufficiently larger than the length c of the component 300. Further, the rear transport plate 120 is completely similar in shape to the front transport plate 110.

The front transport plate 110 and the rear transport plate 120 are provided above the transport rail 200 so as to face each other.
By a drive unit (not shown), arrow A direction to arrow D shown in FIG.
Is configured to be moved in the direction. However, in the front transport plate 110 and the rear transport plate 120, the arrow B direction and the arrow D
The moving distance in the direction is different.

Next, the operation of the component carrying device thus constructed will be described. In the following, the front transport plate 110 and the rear transport plate 120 are respectively provided with the two notches 111a, 111b and 12 respectively.
It has 1a and 121b, and it demonstrates that each corresponds to the components 300a and 300b. Further, for convenience of illustration, the rear transport plate 120 is shown to be taller than the front transport plate 110, but it is assumed that they are actually formed the same.

First, as shown in FIG. 2, the front carrier plate 110 and the rear carrier plate 120 are set to the initial state. Here, the initial state means a state in which the cutouts of the front transport plate 110 and the rear transport plate 120 are aligned with each other and are positioned above the components. In the drawing, the cutout 111a of the front transport plate 110 and the rear transport plate 120 are shown. Notch 121a
And the notch 11 of the front carrier plate 110 above the part 300a.
The state in which 1b and the notch 121b of the rear transport plate 120 are aligned with each other and located above the component 300b, respectively.

From this initial state, the front carrier plate 110 and the rear carrier plate 120 are moved downward (in the direction of arrow A in FIG. 1) to place the parts 300a in the notches 111a and 121a and the parts 300a in the notches 111b and 121b. Store 300b each (see Figure 3). Note that, in order to simplify the following description, each of the components 300a and 300b is set in the center of the cutout 111a (121a) and the cutout 111b (121b), respectively.

Next, the front carrier plate 110 and the rear carrier plate 120 are moved in the direction of arrow B shown in FIG. This movement is set as follows. That is, if the movement amount of the front conveyance plate 110 is X, the movement amount of the rear conveyance plate 120 is Y, the movement amount of the component 300 is Z, the length dimension of the component 300 is c, and the notch dimension is d, then X <Y , C <d holds. Also, Y = Z +
The relationship of 1/2 (dc) and X = Z-1 / 2 (dc) is established.

Therefore, when the movement of the front transport plate 110 and the rear transport plate 120 is completed, as shown in FIG.
The front edges of the notches 111a and 111b of the 110 are the front edges of the parts 300a and 300b, and the rear edges of the notches 111b and 121b of the rear carrier plate 120 are the parts 30.
It comes into contact with the rear edges of 0a and 300b.
That is, as shown in FIG. 4, the component 300a is completely sandwiched between the notch 111a and the notch 121a, and the component 300b is almost sandwiched between the notch 111b and the notch 121b.

When this movement is completed, the front carrier plate 110 and the rear carrier plate 120 move upward (in the direction of arrow C shown in FIG. 1) in the same state (see FIG. 5). And the front carrier plate 11
0 and the rear transport plate 120 move in the direction of arrow D shown in FIG. 1 and return to the initial state. When the movement in the direction of the arrow D is completed, the rear transport plate 120 is moved more than the front transport plate 110 and is moved by d−c so as to return to the initial state shown in FIG.

[0018]

As described above, the component conveying device according to the present invention is a component conveying device which conveys components at a constant pitch. In the component conveying device, notches sufficiently larger than the length of the components to be conveyed are formed at a constant pitch. And a rear carrier plate having the same shape as the front carrier plate and facing each other, and a drive unit for moving these both carrier plates along the carrier rails on which the parts are placed. When the movement of the pitch of the front carrier plate is completed, the front carrier plate is placed so that the parts are sandwiched with a slight gap between the front edge part of the notch of the front carrier plate and the rear edge part of the notch of the rear carrier plate. Is set to be shorter than the moving distance of the rear transport plate. Therefore, even if the stop position of the component is slightly deviated, there is no hindrance to the conveyance, and the speed can be increased.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a component carrying device according to an embodiment of the present invention.

FIG. 2 is a drawing showing a carrying procedure by the component carrying device and is an explanatory view showing an initial state.

FIG. 3 is a diagram showing a transportation procedure by the component transportation device, and is an explanatory view showing a state where the components are accommodated in the notches of the transportation plate.

FIG. 4 is a diagram showing a transportation procedure by the component transportation device, and is an explanatory view showing a state in which a transportation plate transports a component.

FIG. 5 is a drawing showing a carrying procedure by the parts carrying device and is an explanatory view showing a state where the carrying of the parts is completed.

FIG. 6 is a schematic perspective view showing an example of a conventional component transfer device.

FIG. 7 is a schematic perspective view showing another example of a conventional component transfer device.

8 is an explanatory diagram showing a problem of the component carrying device shown in FIG. 7. FIG.

9 is an explanatory diagram showing a state in which the problem shown in FIG. 8 has been solved.

[Explanation of symbols]

 110 Front carrier plate 111 (For front carrier plate) Notch 120 Rear carrier plate 121 (For rear carrier plate) Notch 200 Carrier rail 300 Parts c Parts length dimension

Claims (1)

[Claims] 1. A parts conveying device for conveying parts at a constant pitch, a front conveyor plate having notches sufficiently larger than the length of the conveyed parts at a constant pitch, and the same shape as the front conveyor plate. , And a rear transport plate provided opposite to each other, and a drive unit for moving both of these transport plates along the transport rail on which the parts are placed. , The moving distance of the front carrier plate is such that the parts are sandwiched with a slight gap between the front edge of the notch of the front carrier plate and the rear edge of the notch of the rear carrier plate. A parts conveying device characterized by being set shorter than the distance.