JPS5957812A - Line-up transfer device - Google Patents

Abstract

PURPOSE:To enable a line-up transfer device of simple structure to operate at a high speed, by providing such an arrangement that a plurality of guide members are slidably arranged on a movable bed moved by a screw shaft so that they approach with each other and move away from each other in association with the reciprocating movement of the movable bed. CONSTITUTION:When a movable bag 9 is moved in the direction of the arrow H, of movable guide members 42 through 47 which are threadedly engaged with different lead threaded parts of a screw shaft 23, guide members 45 through 47 on the left side are moved to the right but guide members 42 through 44 on the right side are moved to the left, being moved away from a center guide plate 49, so that spaces therebetween are enlarged. In this condition, materials 15a through 15b to be transferred are fed into the spaces between the guide members. Since the spaces between the guide members 42 through 49 are enlarged, article which are not lined up may be received. When the movable bed is moved in the H' direction, the guide members 42 through 47 move toward the center to line up the transferred materials at predetermined pitches, and then to transfer them together with the movable bed. With this arrangement, the transfer device may have a simple structure and the operation thereof may be speed up.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus that transports a plurality of parts in a fixed direction and simultaneously aligns the plurality of parts at desired intervals.

FIG. 1 shows an example of a conventional device of this type.

A pair of guide shafts 2a and 2b are fixed to the base 1 and guide the movable table 3 in the direction of the arrow HH'.

The cylinder 4 is attached to the base 71, and the tip of the piston 4a is attached to the movable base 3. As a result, when the cylinder 4 expands and contracts, the moving platform 3
is driven in the direction of arrow HH'.

Five movable guide plates 7a and 7b are placed on the above-mentioned movable table 3.
'~7e and one fixed guide plate 12 are provided at equal intervals 1, 1. The objects to be transported 15a are respectively placed between them.
-・15e are inserted one by one.

In this state, when the cylinder 4 is operated to drive the moving table 3, the objects 15a to 15e are sent in the direction of the arrow H-II', but the distance between the objects 15a and 15e changes as they are transported. There are times when you want to do so. For this reason, a means for changing the distance between the guide plates as described above while driving the movable table 3 is provided.

When it is necessary to change the interval, for example, when receiving an object from the previous process, widen the interval between the guide plates to make the transfer easier, and when sending the object to the next process, There are cases where the distance between the guide plates is shortened to precisely control the position of the transported object, and on the other hand, when transferring the transported object to the next process, the distance between the guide plates is widened by 1 m to control the position of the transported object. It may also make it easier to grasp.

FIG. 2 shows details of a conventional alignment device for freely changing the spacing between the five movable guide plates 7a to 7e as described above.
It is a bottom view showing l'llll ffi.

A pair of guide shafts 6a and 6b with respect to the moving table 3 are indicated by arrows ゛H-
Five movable guide plates 7a to 7e are fixed in parallel with TI'.
f, 1 It is slidably guided in the direction of arrow H-TI'.

Place the bracket l in a symmetrical position facing the fixed guide plate 12.
-13=i Fix and support the cylinder 14f, and place the tip of the screw and rod 14a on the movable guide plate 7a. Thereby, when the cylinder 14 is expanded or contracted, the movable guide plate 7a is driven in the direction of the arrow ll-H'. For more information,
The moving table 3 is moved in the HH' direction.

A shaft 10a and a shaft 10f are installed in the movable guide plate 7a and the fixed guide plate 12, respectively, and these two shafts 1°a
, 10f i Four links 8a~ as fulcrums at both ends
8d and eight levers 9a to 9h, and axes 101), 1 at the intersection of each lever.
0 c +10d, 10e 'f- are fixed to the movable guide plates 7b, 7c, 7d, and 7e, respectively. Ha-11j are the two panes of the lever, respectively, and the freely connected shaft. Due to this, when the total distance between the fixed guide plate 12 and the movable guide plate 7a is changed) t, the four movable guide plates 7b to 7
e is moved while always maintaining the position that divides the space into five equal parts.

However, in the above conventional device (unfortunately, one transfer unit and three
Since the cylinder 14 for driving the guide plate is mounted on top of the moving table, the inertia load of the moving table is large, making it suitable for high-speed operation. Furthermore, since the cylinder 14 is provided separately from the cylinder 4, the drive system becomes complicated and expensive.

In particular, it is technically difficult to supply power to the drive means (the upper side (cylinder 14 in C) mounted on the movable base). There is a problem in that special means must be provided to make them all interlock.

The present invention has been made in view of the above-mentioned circumstances, and uses a single drive source to drive the movable table and transport the transported object. A adjustment can be carried out with complete movement, so the inertia load of the moving table is small, suitable for high-speed operation, and easy f! The purpose of the present invention is to provide an inexpensive aligning and conveying device having the following configuration.

In order to achieve all of the above objectives, the alignment and conveyance device of the present invention? 1 has a plurality of guide parts mounted on a linearly driven moving table so as to be able to slide in the same direction as the driving direction, and a plurality of different IJ- a screw shaft formed with a threaded portion having a threaded portion is rotatably supported, each of the plurality of guide members is provided with a female screw hole and is screwed into the plurality of threaded portions, and A screw shaft is provided parallel to the screw shaft, and a nut screwed onto the screw shaft is rotatably supported on the above-mentioned moving table, and gears are fixed to the above-mentioned nut and the above-mentioned screw shaft respectively, and both gears k, Ii, and Q are connected. It is characterized by being forced.

Next, an embodiment of the present invention will be explained with reference to FIGS. 3 to 6.

Unusual smell 1 - Base 1, guide shafts 2a, 2b with the same drawing reference numbers as the conventional device (ffix diagram).

and cylinder 4 are the same or similar components as in conventional devices.

Not shown in Figure 3 42.113, 44, 45, ・17 it, J, Soga 1. There is a movable guide member installed on the movable table 19, and a fixed guide member 4J is installed between these seven guide parts. i i
General items 15a to 15f are held. IJ mano J id axis 2a.

The screw shaft installed parallel to 2b (Liver IfIII
(described later).

FIG. 4 is a bottom view of the above-mentioned movable table 19, and shows the 0! Cross-section of the structure
``1 (Ideru.

A rectangular opening [1 part 50 is provided on the movable table I9, 1)・Slide guide shaft 35a, : 151) %7 The above opening [,1
Passing the rack i75 to GLS - C fixed slot 3, 21a, 21
1) is the brakt of Idri II+. The fixed guide member 49 mentioned above is the guide decoy 135i1. +a5
Center of b (1 = fixed, front tt12) HJ if';
#Guidance+U 42 He-47);t.

arrow 1 through sliding guide bearings 48a and 481ff, respectively.
．． 2, on the other hand, is slidably supported in the I-H' direction.
It is placed over the opening j5o and rotatably supports the support 123. 22a and 22b are bearings.

A binion 24 is fixed to the center of the screw shaft 23 mentioned above.

The outer 131 side of this screw 1liJ+23 has different leads as shown below: 6111! Form similar screws symmetrically.

The right half shown in the figure is divided into three parts, and right-hand threaded parts 25, 26, and a turn 27 are formed from the inside, respectively, and the lead ratio of these three threaded parts is set to 2:3.

Similarly, the left half of the screw 'fat 23 is divided into three parts, each of which has a left threaded part 28 from the inside 1. 29. and 3
Form 0, 7, this 1. Ra's Reed [Shichizen 1: 2
: Set to 3.

Screw the right-hand screw nuts 3G, 37, and 38f onto the right-hand screws fall 25-26-27 of [1] above, respectively. In terms of screw assembly, the diameter of the cloth threaded portion 25 is wider than the diameter of the cloth threaded portion 26, and the diameter of the right-hand threaded portion 26 is larger than that of the cloth threaded portion 27.

Similarly, the left-hand threaded nuts 39, 4 (1, 41 are partially screwed) are screwed into the left-hand threaded portions 28, 29, 30, respectively.

- J2N's own right-hand screw nuts 36, 37, 38 k each) 1. Stick to the guide parts 42, 43, 44, and warp the left-hand screw nuts 39, 40, 41.
It is fixed to the guide members 45, 46, and 47 of i1. As a result, when the screw shaft 23 rotates in the direction of the arrow, the six movable guide portion sides 42 to 47 each approach the fixed member 49 in the center, and when the screw shaft 23 rotates in the direction opposite to the arrow The movable guide members 42 to 47 are screwed in a direction away from the central fixed guide member 49 by 1°. The screw feeding speed is 1 for the inner member 4245 of the 11th rfJ movable guide part, 3 for the outermost rfJ movable guide part 44 and 47, and 4:3 for the middle iiJ movable guide part.゜4G attacks with 2.

A transmission pinion 4 is fixed to the center of the screw shaft 23, and a transmission system for driving the pinion 24 is constructed as follows.

A screw shaft j8 is provided parallel to the arrow H-)('. In this embodiment, this screw shaft 18 is fixed to the base 1.

- 32 nut members are screwed onto the screw shaft 18, and this nut member gold bear link 34a
, 34b and f valves are rotatably supported by the bearing housing 33, and fixed to the pairing tool mounting 331: moving table 19.

The screw shaft J8 and the nut member 32 are
Direct V @ motion can be converted to rotation, and rotational motion can be converted to rotation. The structure is such that power can be transmitted reversibly. The gear 31 is fixed to the nut member 32, and the gear 31f is screwed onto the pinion 24.

As a result, when the movable table 19 is immediately driven in the HH' direction, the rat member 32 is also driven in the same direction and rotated by being engaged with the screw shaft 18. The rotation of the nut member 32 is controlled by the gear 31 and the pinion 2.
4 to the screw shaft 23.

When the screw shaft 23 rotates, as described above, the six movable guide members 42 to 47 are screwed and converge towards the fixed guide member 49 in the center, or open at equal intervals.

5 and 6 are vertical cross-sectional views for explaining the operation fL of the aligning and conveying device configured as described above. Figure 6 shows the state in which it is driven in the direction of arrow H'.

When the moving table 19 is driven in the direction of arrow H as shown in Fig. 5,
By the action described in connection with FIG. 4, the six movable guide members 42-47 are moved in a direction away from the central fixed guide (B1149) and are equally spaced apart from each other.

In this state, between each guide member, the IL-tJJL broken conveyance 9
Of course, 5a to 15f are supplied one by one. In this case, since the guide sound + the distance between the i pillars is wide, the transporter t in the previous process
Even if there is a slight error in alignment of y (not shown), '4 (
f=force to hold the conveyed object in place; -C
Wear.

When the movable table 19 is driven in the direction of the arrow H', the movable guide members 42, 4r+
.

44 are movable guide members 45, 46, 44 in the direction of arrow P1.
47 approach each other in the direction of arrow [1]P2 while maintaining a distance of 1 m from each other, and align the conveyed members 15a to tst' at a predetermined pitch.

Further, as an application example of the present invention, the screw shaft 18
If a means (not shown) f for rotating the screw shaft 18 is provided, the distance between the guide members can be arbitrarily adjusted by appropriately rotating the screw shaft 18.

As is clear from the above configuration and operation, in the non-example, the movement of the moving table 19 (pTJ) and the transported object 15a
The alignment of ~15f is performed using the cylinder 4 as a driving source, and both operations are performed in complete synchronization.

Also, since not all drive sources are installed on one mobile platform, l1
1) The power output is small and suitable for high-speed operation. 2. The movable table is not equipped with a driving gamma source, so it is difficult to supply power to the movable table 19 through piping or wiring. There is no need for all means to be followed, and the structure is simple.Therefore, manufacturing costs are low and installation is easy.

As described in detail below, the alignment and conveyance device of the present invention has an irT
Oblique! A plurality of guide parts are installed on the movable table so that it can be moved in the driving direction and the concave direction.
A threaded portion having several different leads is formed on the moving base of item 1, and the threaded shaft is rotatably supported.
There are several internal enemies listed, each with 1. A female screw hole is provided to fit the plurality of threaded parts, and a screw shaft is provided parallel to the driving direction and a screw threaded screw shaft is screwed onto the screw shaft of the moving table. By supporting it rotatably, fixing gears to the above-mentioned nut and the screw shaft shown in The inertial load of the moving table is small and high-speed operation is possible.
It is suitable for use, has a simple structure, and has a low manufacturing cost, which brings about great practical effects.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an example of the rE future type alignment and transfer device, and FIG. 2 is a bottom view of the essential parts. FIGS. 3 to 6 are one embodiment of the alignment and transfer device of the present invention. Examples are shown, FIG. 3 is a perspective view, FIG. 4 is a partial sectional view, and FIGS. 5 and 6 are vertical sectional views for explaining the operation. 1...B, 2 .3.19...Moving table, 4...Cylinder, 4a...Cylinder piston rod, 18...Screw shaft, 23...Screw shaft, 24...Binion, 25, 26.27.・Right thread part, 28, 29.
30...Left threaded part, :31...Gear, 32...Nut part layer, 33...Bearing housing, 35a,
35b...Guide shaft, 36, 37, 38...Right screw nut, 39, 4(], 4]...Left two screw nut, 42-47...Movable guide member, 48a-48
1...Sliding guide bearing, 49...Fixed guide member, 5o
...Open 1] part. Representative Patent Attorney Masami Akiki F

Claims (1)

[Claims] A plurality of guide members are mounted on a linearly driven movable base so as to be slidable in the same direction as the driving direction, and a threaded portion having a plurality of different leads is mounted on the movable base. A threaded shaft formed with a screw shaft is rotatably supported, a female threaded hole is provided in each of the plurality of guide members to be screwed into the plurality of threaded parts, and a screw is screwed in parallel to the driving direction of the movable table. In addition to providing a shirt tracker, a nut screwed onto the screw shaft is rotatably supported on the movable table, and the gears are fully fixed to the nut and the screw shaft, respectively, so that both gears are meshed. l? This is an alignment conveyance device.