JPH0240003Y2 - - Google Patents

Description

[Detailed description of the invention] The invention can be used, for example, in various assembly factories.
This is an article transfer device that is useful when transferring assembly parts or assembled finished products from a trolley to a station or from a station to a trolley. Specifically, it is an article transfer device that is installed in a state that allows article transfer between them. On one side of the two article placement sections, the article can be driven and slid in the article transfer direction with respect to the article placement section, and as the article slides, the article is engaged and moved between the two article placement sections. A slide frame is provided with a transfer engagement tool that can be switched between a protruding working position and a retracted disengagement position, and an actuator, and the transfer engagement tool operates in conjunction with the actuator. The present invention relates to an article transfer device that is provided with a linkage mechanism that changes the posture of the article.

In conventional article transfer devices of this type, the above-mentioned linkage mechanism is
The transfer engagement tool is linked to the actuator via a cable-like body such as a chain suspended between the article placement section and the slide frame so that the length does not change regardless of the slide frame's sliding. It was hot. Moreover, the interlocking mechanism and the engagement tool are simply interlocked and connected using a link mechanism or the like. By the way, the initial change of the posture of the engaging tool may require a large operating force because the posture must be changed while pressing the article or slidingly contacting the article. In such a case, a large force is applied to the interlocking mechanism, and therefore the strength must be sufficiently increased, resulting in the disadvantage that the overall structure becomes expensive.

The present invention aims to eliminate such drawbacks.

A characteristic configuration of the article transfer device according to the present invention is that a screw mechanism for switching the engaging tool between the working position and the disengaging position is provided, and the linking mechanism is configured to rotate the screw mechanism in forward and reverse directions. The functions and effects are as follows.

In other words, the engagement tool can switch postures with a small operating force due to the boosting action of the screw mechanism, and the linkage mechanism links the actuator and the screw mechanism. ing.

Therefore, even if a large operating force is required to change the posture of the engaging tool, the force acting on the linkage mechanism can be minimized, so the strength provided to the linkage mechanism can be reduced, and the By simplifying the linkage mechanism, it has become possible to reduce the cost of the overall configuration.

Hereinafter, embodiments of the present invention will be described based on the drawings.

Article a is transferred between a cart A (an example of an article loading section) that can carry article a on it and horizontal movement of article a with cart A placed next to it. This is a device for transferring an article a to and from an article loading section B for carrying in and out of a trolley A, in which the article A and the article loading section B are provided with an appropriate load in the front and back direction of the trolley A. A pair of mounting surfaces that can be placed on two spaced apart locations, movable in the left and right direction.
A′, A′, B′, and B′ are formed.

The article transfer device is capable of driving and sliding in the article transfer direction (horizontal direction) with respect to the truck A between the front and rear loading surfaces A′ and A′, and
By swinging around the axis X perpendicular to the article transfer direction, the article A is brought into a protruding working position and retired so as to engage and move between the cart A and the article placement section B as it slides. A slide frame 3 equipped with a pair of left and right engaging tools 2, 2 that can be freely switched between the disengaged and disengaged positions.
and a motor 4, which is an example of an actuator, and a linkage mechanism 5 that switches the posture of the engagement tools 2, 2 in conjunction with the forward and reverse rotation of the motor 4.

The engaging tools 2, 2 are connected to the trolley A in the working position.
It also serves as a device for regulating the horizontal position of the article above.

The slide frame 3 includes a first frame portion 3A that is supported by a U-shaped cross-section frame 6 of the truck A so as to be slidable only via a group of rollers 7 while being positioned within the width of the frame 6, and this first frame portion 3A. The first frame part 3A is composed of a second frame part 3B having an inverted U-shaped cross section, which is slidably supported via a group of rollers 8, and the engaging tools 2, 2 are attached to the second frame part It is attached to 3B.

The means for driving and sliding the slide frame 3 includes forward rotation of a drive sprocket wheel 9 attached to the U-shaped frame 6, which pulls the first frame portion 3A to project and slide it toward the article placement portion B side. , a chain 1 that pulls the first frame portion 3A to slide it toward the truck A side by reverse rotation of the drive sprocket wheel 9;
0, a chain 11 that pulls the second frame part 3B to protrude and slide as the first frame part 3A slides out, and a chain 11 that pulls the second frame part 3B as the first frame part 3A slides out. This is a means for providing a chain 12 that is pulled to slide the chain 12 when it is retired.
13... are guide wheels of each chain 10, 11, 12. In addition, chains 10, 11, 1
2 is provided within the width of the U-shaped frame 6.

The engagement tool 2 includes a screw shaft 26 and a ball nut 2.
As the link 27 is swung by a screw mechanism consisting of a screw mechanism 8, the posture is switched. One end of the transmission shaft 5A is connected to the motor 4, and the other end is connected to the screw mechanisms 26 and 28.The screw mechanisms 26 and 28 and the rotation transmission shaft 5A will be explained below. Add.

That is, the first shaft 14 is connected to the motor 4 through gears 13, 13', and the flange joint 1
The second shaft 1 using a spline shaft is connected via 5.
6 is provided in a fixed position on the cart A side, and is interlocked with the second shaft 16 via a gear 17 that is spline-fitted to the second shaft 16 so as to be movable in the axial direction, and a gear 18 that meshes with the gear 17. The third axis 19
and a fourth shaft 21 using a spline shaft which is interlocked with the fourth shaft 21 through a gear 20, etc., is provided in the first frame portion 3A so as to be able to move together with the fourth shaft 21, and
The fourth
A fifth shaft 24 interlocking with the shaft 21, and screw shafts 26, 2 connected to both ends of this through a flange joint 25.
6, and by forward and reverse rotation of the screw shafts 26, 26, the engagement members 2, 2 are moved in the axial direction to connect the engagement members 2, 2 to the link 2.
7, 27 to swing the ball nut 28,
28 is provided in the second frame portion 3B so as to move integrally therewith. The gear 17 spline-fitted to the second shaft 16 is attached to a case 30 attached to the third shaft 19 so as to move together with the third shaft 19.
A gear 22, which is installed together with a gear 18 and spline-fitted to the fourth shaft 21, is connected to the fifth shaft 2.
In order to move together with the gear 23, the gear 23 is housed in a case 31 attached to the fifth shaft 24.

The means for stopping the motor 4 when the engaging tool 2 is switched to each posture is to provide a gear 3 to the motor 4.
2 and 32', and the engaging tool 2
This means is provided with a cam 34 that operates a limit switch 33 for stopping forward rotation and a limit switch 33' for stopping reverse rotation when rotated to a posture corresponding to each posture.

According to the configuration of the above embodiment, after the cart A is placed next to the article placement section B, (a) the slide frame 3 on the article placement section B side with the engaging tools 2, 2 in the disengaged position; (b) The engagement tool 2 is rotated by the rotation of the motor 4 after the slide frame 3 reaches the slide end.
With the switching to the operating position in step 2, (c) the subsequent sliding of the slide frame 3 toward the cart A, the article a on the article placement section B is transferred onto the cart A, and (b) the engagement (b) Sliding of the slide frame 3 toward the article placement part B side with the tools 2, 2 in the operating position; (b) Engagement tool by reverse rotation of the motor 4 after the slide frame 3 reaches the sliding end With the switching to the disengaged position of 2, 2 and (c) the subsequent sliding of the slide frame 3 toward the cart A side, the article a on the cart A is transferred onto the article placement section B. be.

In addition, the present invention is suitable for cases in which the article a is transferred between the cart and the article placement section B in the front-rear direction of the cart, or when the article a is transferred by the conveyor A (an example of the article placement section). The present invention can also be applied to a case where the article a is transferred to a conveyor B that is transported in a direction different from the conveyor A.

Further, in the embodiment, the slide frame 3 is structured as a two-stage sliding type, but the sliding frame 3 may be a one-stage sliding type or a sliding type with three or more stages.

[Brief explanation of the drawing]

The drawings show an embodiment of the article transfer device according to the present invention, in which Fig. 1 is a schematic plan view, Fig. 2 is a front view, and Fig. 3 is a schematic plan view.
The figure is a schematic front view of the main part mechanism, Fig. 4 is an enlarged longitudinal sectional front view of the main part, Figs. 5 and 6 are enlarged longitudinal sectional side views of the main part, and Fig. 7 is an enlarged plan view of the main part. Figure 8, 9th
The figure is a front view showing the transfer action, and FIG. 10 is a plan view of the main parts. A, B...Article placement part, 2...Engagement tool, 3...
Slide frame, 4... Actuator, 5... Coordination mechanism, 26, 28... Spiral mechanism.

Claims (1)

[Scope of utility model registration request] On one side A of two article placement sections A and B arranged such that articles can be transferred between them, a drive slider is provided that is freely driven and slidable in the article transfer direction with respect to article placement section A; and a slide frame equipped with an engaging tool 2 that can be switched between a protruding working position and a retired disengaging position to engage and move the article a between the article placement parts A and B as the article a slides. 3 and actuator 4
In the article transfer device, a linking mechanism 5 is provided which switches the posture of the engaging tool 2 in conjunction with the actuator 4, and the engaging tool 2 can be switched between the working posture and the disengaging posture. The article transfer device is provided with screw mechanisms 26 and 28 that switch between the two directions, and the linking mechanism 5 is configured to link the screw mechanisms 26 and 28 in order to rotate them forward and backward.