JPH0242351Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is a method for pushing up materials to be pressed from below at a stacked position and delivering them to a suction cup for conveyance installed at that position. The present invention relates to a blank lifter device, and specifically relates to a blank lifter selection device that can change the lifter according to the size and shape of the material.

(Prior art and its problems) In blank lifter equipment, the size of the material,
When the shape of a lifter changes, the shape of the lifter is also changed, but in the past, the plate attached to the head of the lifter was replaced.

For this reason, a problem arises in that lifters cannot be selected quickly in response to changes in materials, and manufacturing efficiency is reduced by the time it takes for setup work.

(Means for Solving the Problems) The present invention is intended to solve the problems of the prior art, and consists of providing a plurality of columns with lift plates, one of which is used as the main column, and the other is interlocked with the main column. This is a device that uses a prop that moves by moving both props at the same time or by driving only the main prop, depending on the size of the blank.

In addition, the present invention provides a lift plate at the upper end of each of a plurality of columns held by a frame so as to be movable up and down, one of the columns is connected to a vertical drive device, and the other columns are connected to a vertical drive device. The main column is slidably connected to the main column by a connecting member, and a bracket provided on the connecting member is provided with a laterally movable partition plate, and a ring is fixed to the column, and the partition plate further includes a partition plate that is movable in the horizontal direction. It is characterized in that a large hole through which the ring can pass and a small hole through which only the pillar can pass are successively provided, and a reciprocating drive mechanism is coupled to the partition plate.

(Function) When the ring is slidably provided on the connecting member, only the main column moves up and down when the ring is aligned with the large hole in the partition plate, and the ring engages with the small hole in the partition plate. When there is a main pillar, the relevant pillar rises and falls together with the main pillar.

Therefore, the supporting column to be driven is selected according to the size and shape of the blank.

(Example) Figure 1 is an overall assembly diagram, Figure 2 is a plan view of the main lifter, Figure 3 is a sectional view taken along line A-A in Figure 1, and Figure 4 is a side view of the blank lifter device in which this device is incorporated. It is a diagram.

First, in FIG. 4, conveyors 2 and 3 are provided before and after the lifter mechanism 1. In the illustrated state, a stack truck 4 on which blanks 5 are stacked is waiting just before the lifter mechanism 1 by the conveyor 2. In the lifter mechanism 1, all the blanks of the stack truck 4 have been transferred to a suction cup (not shown). The empty cart is then transferred to a conveyor 3, where blanks are stacked again and conveyed to a conveyor 2.

Next, the lifter selection device will be explained with reference to FIGS. 1 and 2. Lower frame 10 and upper frame 11
A pillar 12 is provided in the center passing through these frames 10 and 11, and a second pillar 13 is provided on both sides of the pillar 12.
13 are provided.

The lower end of the column 12 is connected to a piston rod 15 of an air cylinder 14 provided on the lower frame 10, and the upper portion is made to protrude from a cylindrical holder 16 provided on the upper frame 11, and a small lift plate 17 is attached to the upper end.
is provided. In addition, the small lift plate 17
A rotatable large lift plate 18 is attached to the outer periphery. The large lift plate 18 has a circular planar shape with an opening 19 formed in the center, while the small lift plate 17 has a non-circular planar shape, and in the embodiment, a circular member is made into a horizontally elongated shape. Arc-shaped part 2 by cutting off the opposing surfaces parallel to each other
0 and 20 remain, and the length of the arcuate portion is longer than the length of the parallel portion.

Further, the small lift plate 17 has a neck portion 21 with a small diameter formed in the middle, and allows the small lift plate to pass through the neck portion 21 only at a specific position directly below the opening of the large lift plate 18, and when the phase is changed. An engagement hole 22 is formed to engage with the plate. That is, the engagement hole 22 is connected to the large lift plate 1.
When 8 is rotated 90 degrees, the small lift plate 17
Since it has a rectangular shape that engages with the arcuate portions 20, 20 of the small lift plate 17, the plate is allowed to pass only when the small lift plate 17 is facing the same direction.

A gear 23 that rotates together with the large lift plate is provided at the lower part of the large lift plate 18, and an air motor 24 installed on the upper frame 11 is provided.
A drive gear 25 meshes with the gear 23,
The large lift plate 1 is driven by the air motor 24.
8 rotates.

In FIG. 2A, the engagement hole 2 of the large lift plate 18 corresponds to the neck 21 of the small lift plate 17.
2 is oriented in the longitudinal direction, so the narrow parallel portions 22a, 22a are engaged with the arcuate portions 20, 20 of the small lift plate 17. Therefore, when the air cylinder 14 is driven to raise the column 12, the small lift plate 17 engages the large lift plate 18 at the neck 21 and rises together with the large lift plate. This will push up the

When the large lift plate 18 rises, the gear 23 disengages from the drive gear 25, but when the pillar 12 descends and the large lift plate descends, the gear 23 meshes with the drive gear 25 again. .

Next, to raise only the small lift plate 17, the air motor 24 is driven to rotate the drive gear 25, and the rotation of the gear 23 causes the large lift plate 18 to rotate. Large lift plate 18
When rotated by 90 degrees, the engagement hole 22 faces in the horizontal direction as shown in FIG. 2B, and the narrow parallel portion 2
2a, 22a and the parallel parts 20a, 20a in contact with the arcuate parts 20, 20 of the small lift plate 17 face the same direction, and in this case, the small lift plate 17
Only the large lift plate 18 moves up and down, and the large lift plate 18 remains placed on the cylindrical holder 16.

On the other hand, second columns 1 provided on both sides of the column 12
3 and 13 are the lower frame 10 and the upper frame 1
1 and is provided through the lower frame 10.
The portions protruding from the cylindrical bodies 30, 30 are housed within the cylindrical bodies 30, 30. Further, the portion protruding from the upper frame 11 is held by guide tubes 31, 31 provided on the frame, and a lift plate 3 is attached to the upper end.
2 and 32 are provided.

A connecting member 33 is fixed near the lower end of the pillar 12, and the connecting member 33 extends laterally and is slidably fitted into the adjacent second pillars 13, 13. Further, on the lower surface of the connecting member 33, there are brackets 34, 34 with the second support columns 13, 13 in between.
Partition plates 35, 35 which are movable in the lateral direction are provided on a stepped portion 34a formed inside the lower end of the bracket 34. Furthermore, between the connecting member 33 and the partition plates 35, 35, the second support column 1
Rings 36, 36 are fixed to 3, 13.

A large hole 37 through which the ring 36 can pass and a small hole 38 through which only the second support 13 can pass are continuously formed in the partition plates 35, 35, and the connecting member 33
Piston rods 40, 40 of air cylinders 39, 39 provided on the lower surface of the air cylinders 39, 39 are connected to the partition plate 35.

FIG. 3 shows the second column on the left side in FIG. There is. When the main column 12 is raised by the air cylinder 14 in this state, the connecting member 3
3 rise together, but since the large hole 37 of the partition plate 35 passes through the ring 36, the second support column remains stationary without moving at all. On the other hand, in the second column 13 on the right side in FIG.
6, when the connecting member 33 rises in this state, the partition plate 35 will raise and lower the second support column 13 together with the ring 36, and therefore the lift plate of the support column 12 and The blank is pushed up by the lift plate of the second column 13.

(Effects of the invention) With this invention, the lifter plate can be changed with a single touch depending on the size and shape of the plate material to be delivered to the suction cup, which has succeeded in minimizing the time required for setup work before pressing. This has been effective in improving work efficiency.

[Brief explanation of drawings]

Figure 1 is a sectional view of the entire assembly, Figure 2 A and B
is a plan view of the main lifter, and Fig. 3A is a plan view of the main lifter, and Fig. 3A is a plan view of the main lifter.
A is a sectional view, FIG. 3B is a side view of the same, and FIG. 4 is a side view of a blank lifter device in which this device is incorporated. 1... Lifter mechanism, 2, 3... Conveyor, 4...
... Stack trolley, 5 ... Blank, 10 ... Lower frame, 11 ... Upper frame, 12 ... Support column, 13 ... Second support column, 14 ... Air cylinder,
15... Piston rod, 16... Cylindrical holding body,
17... Small lift plate, 18... Large lift plate, 19... Opening, 20... Arc-shaped portion, 21
...Neck, 22...Engagement hole, 23...Gear, 24
... Air motor, 25 ... Drive gear, 30 ... Cylindrical body, 31 ... Guide cylinder, 32 ... Lift plate, 33 ... Connection member, 34 ... Bracket, 3
5... Partition plate, 36... Ring, 37... Large hole,
38...Small hole, 39...Air cylinder, 40...
piston rod.

Claims (1)

[Scope of utility model registration request] A lift plate is provided at the upper end of each of a plurality of columns held by the frame so as to be movable up and down, one of the columns is connected to a vertical drive device, and the other columns are connected to the main column. A bracket provided on the connecting member is provided with a laterally movable partition plate, and a ring is fixed to the column, and the ring passes through the partition plate. 1. A lift plate selection device for a blank lifter device, characterized in that a large hole that can be formed and a small hole that only a support can pass through are successively provided, and a reciprocating mechanism is coupled to a partition plate.