JP2621523B2 - Tab conveyor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial application field" This invention automatically stabs a predetermined number of ring-shaped tabs fixed to the outer surface of a can lid and caused when the can lid is opened. The present invention relates to a transport device for a tub that transports a sheet.

"Conventional technology" Generally, in the can lid of a beverage can, in order to open the can lid,
A score line is formed on the can lid by a weakening line, and a ring-shaped tab for tearing the score line is crimped and fixed at a position inside the score line.

This tab is formed by punching out a strip-shaped plate material by a press device, and then is conveyed to a line that is caulked and fixed to a can lid.

By the way, the tabs punched out by the press are successively carried out of the chute.When transferring the tabs to the caulking fixed line of the tabs, the operator takes out the tabs flowing through the chute every predetermined number of sheets, and The tabs are aligned in the same direction, and a skewer is inserted through the caulking and fixing holes formed in the tabs and stored as a predetermined number of tab groups in a tab stock yard etc. located in front of the caulking and fixing line. I am trying to do it.

"Problem to be Solved by the Invention" As described above, the step of skewing the tabs successively taken out of the chute for every predetermined number of skewers depends on the operator, and thus requires much time and labor, resulting in poor work efficiency. In addition, due to an increase in the demand for tabs in response to an increase in demand for beverage cans in recent years, the burden on workers has been increasing.

"Object of the Invention" The present invention has been made in view of the above circumstances,
It is an object of the present invention to provide a transport device for tabs that can automatically pierce and transport a predetermined number of tabs that are punched out of a press device and carried out one after another.

"Means for Solving the Problems" In order to achieve the above object, the tab conveying device of the present invention is characterized in that a large number of ring-shaped tabs that are inclined with respect to a horizontal plane are inserted in an upright state and a skewer is inserted. A chute in which holes are overlapped and move upward, a skewer device for gripping a skewer in the chute in the longitudinal direction of the chute, and inserting the skewer through the tab by moving the tab; A piece which is provided on the chute so as to be movable along the longitudinal direction of the chute and which is pushed by the tab and moves upward on the chute at the leading position of the tab; A tab cutting device which is separated from the tabs, retracted along the chute and inserted between adjacent tabs at a predetermined position to divide a large number of tabs into a fixed number of tab groups; A group of tabs separated by the piece, a tab group is engaged with a claw at the rear end of the group of tabs, and the piece is placed on a chute ahead of a predetermined position where the tab is separated from the tab group. It is provided with a tab feeder for pushing up, and a tab lateral feeder for pushing out the pushed-up tab group in a direction intersecting with the chute.

[Operation] In the tab conveying device of the present invention, when the skewer is gripped and supplied into the chute by the skewer device, a large number of tabs are erected in the chute and the holes through which the skewer is inserted are overlapped. As it moves upward, the tabs are stabbed one after another on the skewer, and furthermore, the pieces that move in the chute by being pushed by the tabs are prevented from falling down at the leading position of a large number of tabs, and are moved to predetermined positions on the chute. At a predetermined position to separate the tabs from each other at a predetermined position to separate a large number of tabs into a certain number of tab groups. And pushing the pieces upward on a chute in front of a predetermined position separated from the tabs, and pushing out the pushed-up tabs in a direction intersecting with the chute by a tab transverse feeder. Is repeated, thereby automatically piercing and transporting a predetermined number of tabs that are punched out of the press device, are successively carried out, and move the chute.

"Embodiment" An embodiment of a tub transport apparatus of the present invention will be described below with reference to FIGS.

In these figures, reference numeral 1 indicates a main body frame.
A skewer device 2 is provided above the frame 1. This skewer device 2 takes out the skewers that have been put in after the visual inspection one by one and supplies them to a skewer supply device 3 described later. As shown in FIGS. It is mainly composed of a charging section 4, a roller 5 provided in front of the charging section 4 so as to be rotatable around an axis, and a drive motor 6 for driving the roller 5 to rotate.

The input section 4 is a box-shaped one having an open front, and is supported by the main body frame 1 so as to be gradually inclined downward toward the roller 5 side.

The roller 5 has a large diameter at its central portion, and a groove 5b for taking in one skewer is formed in the large diameter portion 5a in parallel with the rotation axis.

In the skewering apparatus 2 having the above configuration, the rollers 5
When the roller 5 is rotated in the direction of the arrow in FIG. 3 by the drive motor 6, the skewer loaded in the input section 4 is taken into the groove 5b every time the roller 5 makes one rotation, and the skewer feeding device 3 is provided one by one.
To be transported.

Further, a skewer supply device 3 is provided on the main body frame 1 below the skewer device 2. This skewer supply device 3
As shown in FIGS. 4 to 6, four skewers sent one by one from the skewer device 2 are mounted and sent to the position of a chute 8 described later. A table 9 that is gradually inclined downward as it goes to the right, a support portion 10 that supports the table 9 movably in the vertical direction in FIG. 4, and a support portion that supports the table 9.
The drive motor 11 that moves through the main body 10 is mainly configured.

A large number of substantially rectangular plates 12 are mounted on the upper surface of the table 9 at predetermined intervals vertically and horizontally in FIG. There are three intervals in the left-right direction, and the interval is set longer as it is on the right. There are four intervals in the vertical and right directions, and each interval is set to a constant interval. The intervals in the vertical direction are grooves 13 into which skewers are inserted in the longitudinal direction, and skewers are inserted into these grooves 13 one by one.

The support portion 10 is supported by the main body frame 1 in a guide rail 14 extending vertically in FIG. 4 (in the left-right direction in FIG. 6), and movably supported by the guide rail 14. It comprises a slider 15 attached to the table 9 and a feed screw 16 screwed to the slider 15, and the feed screw 16
It is connected to.

In the skewer feeding device 3 having the above structure, the table 9 is driven by the drive motor 11 for each rotation of the roller 5 of the skewer device 2.
Is moved (moved downward in FIG. 4) by the distance between the adjacent grooves 13, 13 via the support portion 10, whereby the table 9 has four grooves, one for each groove 13. The skewers are put in and sent out to the position of the chute 8.

As shown in FIG. 1 and FIG. 2, a large number of ring-shaped tabs are provided in the main body frame 1 in the forward direction of the movement of the skewer feeding device 3 in a standing state and a hole through which the skewer is inserted. Four shoots 8 stacked and moving upward ...
Are supported in parallel with each other at a predetermined interval in the horizontal direction, and are supported with a predetermined step in the vertical direction. Each chute 8 has a U-shaped cross-section and is a gutter-like shape that gradually slopes upward as going to the right in FIG. 1. As shown, a groove 18 is formed along the longitudinal direction of the chute 8 so that a claw portion of a tab feeder 50 described later can be inserted and made movable in the longitudinal direction of the chute 8. Note that this shoot 8
Is set to be equal to the table 9 of the skewer feeding device 3.

Further, in the body frame 1 between the chute 8 and the skewer supply device 3, the skewer is gripped in the chute 8 in the longitudinal direction of the chute 8, and the skewer is moved into the hole of the tub by moving the tub. A skewer device 20 for inserting the skewer is provided.

In this skewer device 20, as shown in FIGS. 7 and 8, four substantially triangular plate-shaped plates 21a to 21d are separated from each other in parallel (in FIG. 7, they are separated in parallel in a direction perpendicular to the paper surface). Slide portions 22 are provided between the adjacent plates 21 to connect the plates to each other so as to be relatively movable in the vertical direction. Plates located outside of these plates 21
An L-shaped bracket 23 is fixed to a side surface of the cylinder 21a, and a tip of a cylinder shaft 24a of a cylinder 24 vertically mounted on the main body frame 1 is connected to the bracket 23. Further, between the side surface of the plate 21d located on the outside and the guide plate 25 provided on the main body frame 1, a slide portion 26 for supporting the plate 24d movably in the vertical direction is provided. Then, a cylinder 27 is installed on the side opposite to the slide section 26, and the slide section
It is connected to a cylinder shaft 27a via a bracket 29 connected to.

By the extension of the cylinder 27, the entire device including the substantially triangular plate-shaped plates 21a to 21d and the cylinder 24 of the skewering device 20 can be moved up and down.

The plates 21a to 21d are connected to the cylinder shaft 24a.
Are moved up and down by expanding and contracting, but between the plates 21 adjacent to each other, when the cylinder 24a extends and the plate 21a descends, the lowermost in the order of the plates 21a to 21d. An engaging portion (not shown) is provided such that the value becomes stepped. The plate 21
The intervals between a to 21d are equal to the intervals between the chutes 8, and the steps at the lowest values of the plates 21a to 21d are set to be equal to the vertical steps of the chutes 8.

The seventh plate 21 (plates 21a to 21d)
On the left end face in the figure, a hand part 30 for detachably holding the skewer is provided movably in the vertical direction via a slide part 31, and the slide part 31 is provided with a bracket 32 on the end face of the plate 21. Vertically mounted cylinder through
The tip of the 33 cylinder shaft 33a is connected. The hand unit 30 has a pair of claws 30a, 30a at its tip, and the claws 30a, 30a open and close to grip the skewer in a detachable manner.

Further, a hand portion 34 having a pair of claws 34a, 34a similar to the claws 30a at the distal end is provided on the right end face in FIG. 7 of each plate 21. Claw 34 of this hand part 34
The inclination of a straight line connecting a to the claw 30a of the hand unit 30 is set equal to the inclination of the chute 8 when the cylinder unit 33a of the cylinder 33 is extended and the hand unit 30 is at the uppermost position. .

In the skewer device 20 having the above configuration, the plates 21a to 21d are entirely lowered by contracting the cylinder 27, and the four skewers sent from the supply device 3 by the hand units 30, 34 are gripped. After that, the plates 21a to 21d are raised, and the table 9 of the supply device 3 is retracted. further,
By the extension of the cylinder 24, the plates 21a to 21d are lowered in a stepped manner in order, and are set to be equal to the vertical steps of the chutes 8 so as to supply skewers to the chutes 8 respectively.

Further, the chutes 8 are provided so as to be movable along the longitudinal direction of the chutes 8 and are pushed by the tabs to prevent the tabs at the head position of the tabs from falling down and to move upward on the chutes 8. A piece 35 moving toward is provided.

This piece 35 is, as shown in FIG.
36, the insertion claws 37 are respectively fixed to the four mounting surfaces 36a with the bolts 38 facing downward.
The insertion claws 37 adjacent to each other are attached to the mounting surface 36a so as to be equal to the horizontal separation distance and the vertical separation distance of the adjacent chutes 8 respectively.
Fixed to ... Each of the insertion claws 37 has a pair of claws 37a, 37a separated from each other. A skewer is inserted between the pair of claws 37a, 37a, and the insertion claw 37 and the skewer interfere with each other in the chute 8. Not to be. In order to make it easy to insert the claw 37a between a number of tabs moving in the chute 8, as shown in FIG. 9 (a), the surface facing the moving direction of the piece 35 is closer to the tip end of the claw 37a. So that the width is small
It is inclined with respect to the vertical plane.

Also, on the main body frame 1 in front of the chutes 8, the pieces 35 are separated from the tabs at predetermined positions on the chutes 8, and retreated along the chutes 8. A tab cutting device 40 is provided which inserts and divides a large number of tabs into a fixed number of tab groups. That is, as shown in FIGS. 1 and 9, a rodless cylinder 41 is provided in the main body frame 1 in parallel with the chute 8. As shown in FIG. 9, a plate 44 having an L-shaped cross section is fixed to the side surface of the moving body 43 of the rodless cylinder 41, and a cylinder 45 is fixed to the lower surface of the plate 44. On the other hand, on the side surface of the plate 44, a bracket 47 is provided movably in the vertical direction via a guide portion 43, and the tip of a cylinder shaft 45a of the cylinder 45 is connected to the lower surface of the bracket 47. . Further, on the side surface of the bracket 47, there is provided a hand portion 48 having a pair of holding claws 48a, 48a provided at the front end so as to be freely opened and closed.

Then, in the tab cutting device 40 having the above configuration, the bracket 36b fixed to the plate 36 of the
8 and hold the cylinder shaft 45 of the cylinder 45 with the clamping claws 48a, 48a.
a is extended to separate the piece 35 upward from the tab at a predetermined position on the chute 8.
Is moved back along the shoots 8... At a predetermined position, the cylinder shaft 45 a is contracted to
Are inserted between adjacent tabs to divide a large number of tabs into a fixed number of tab groups.

On the body frame 1 below the shoots 8, a fixed number of tab groups separated by the pieces 35 are provided.
The tab 35 is engaged with the claw at the rear end of the group of tabs, so that the piece 35 is moved forward from a predetermined position separated from the tab.
A tab feeder 50 for pushing up is provided.

That is, as shown in FIGS. 1 and 10, a rodless cylinder 51 is provided below the chutes 8 in parallel with the chutes 8. An L-shaped plate 53 is fixed to a moving body 52 of the rodless cylinder 51. On the upper surface of the plate 53, a cylinder 54 is provided with a plate 53.
Mounted perpendicular to the top surface of the A moving body 55 having a stepped upper surface is provided on a side surface of the plate 53 so as to be movable in a direction orthogonal to the rodless cylinder 51 via a guide portion 56. Are provided with four claw portions 57. These adjacent claw portions 57 are fixed to the mounting surface so as to be equal to the horizontal separation distance and the vertical separation distance of the adjacent chutes 8 respectively. Inside, the surface of the rodless cylinder 51 facing downward in the inclination direction is inclined so that the width thereof becomes smaller toward the tip end side of the claw portion 57 so as to engage with the claw 37a of the piece 35.

In the tab feeder 50 having the above-described configuration, a fixed number of tab groups separated by the pieces 35 are formed by extending the cylinder shaft 54a of the cylinder 54 and forming the claw portions 57 on the lower surface of the chutes 8. The claw portion 57 is engaged with the rear end of the tab group by moving the moving body 52 of the rodless cylinder 51 upward by making the groove portion 18 enter the chute 8 and engage with the claw 37a of the piece 35. , So that the above-mentioned piece 35 is moved away from the tab to the chute 8 in front of the predetermined position.
… It is designed to push up.

Further, the main frame 1 in front of the longitudinal ends of the chutes 8 is provided with a tab lateral feeder 60 for pushing the tabs pushed up by the tab feeders 50 in a direction orthogonal to the chutes 8. Have been. That is, the first
As shown in FIG. 3 to FIG. 3, a plate-like STO yard 61 is provided at the tip end side of each chute 8 respectively.
And supported in parallel with the chute 8.
The base edge of the stock yard 61 is positioned on an extension of the chute 8, and the tabs pushed out from the chute 8 are used to prevent the tabs formed at the edge of the stock yard 61 from falling. The hole 61b formed in the wall 61a is pushed into the stockyard 61.

Also, on the frame facing the base edge of each stock yard 61, three cylinders 62 ... which are pushed out in a direction perpendicular to the tab group chute 8 pushed in from the hole 61b are provided in the longitudinal direction of the stock yard. Are provided at predetermined intervals.

In the tab lateral feeding device 60 having the above-described configuration, the tab groups successively pushed out by the tab feeding device 50 are pushed laterally one after another by the cylinder 62 and stored in the stock yard 61.

Next, the operation of the tab transport device having the above configuration will be described.

First, the roller 5 of the skewer device 2 is rotated by the drive motor 6, one skewer is taken into the groove 5 b of the roller 5, and the skewer is further rotated and put into the groove 13 provided on the table 9 of the skewer supply device 3. I do. At this time, the table 9 is
The groove 13 at the forefront is located at the drop position of the skewer.

Further, while the roller 5 is rotated, the step of moving the table 9 forward by one pitch and putting the next skewer into the next groove 13 is repeated, and four skewers are supplied to the table 9.

Next, the table 9 is further advanced by the drive motor 11 and stopped just below the plates 21a to 21d of the skewering device 20. At this time, each of the grooves 13 of the table 9 and each of the plates 21a to 21d of each of the skewering devices 20 are located in the same vertical plane.

Next, the cylinder 27 of the skewering device 20 is contracted,
21a to 21d are lowered by a predetermined stroke. As a result, the hand portions 30, 34 provided on each of the plates 21a to 21d are lowered, and the claws 30a, 34a at the tips thereof are moved to the grooves 13 of the table 9.
Invade.

Then, by closing the claws 30a and 34a, the skewer in the groove 13 is gripped, and then the cylinder 27 is extended to extend the plates 21a to 21d.
, The four skewers are pulled up from inside the grooves 13.

Next, after the table 9 is retracted and returned to the origin, the cylinder shaft 24a of the cylinder 24 is extended to extend the plate 21a.
Descend. Then, as the plate 21a descends, the plates 21b to 21d descend, and these plates 21a to 21d
Descends so as to form a step at the lowest position. As a result, the hand units 30 and 34 descend, and the claws 30a and 34a are inserted into the respective chutes 8 to supply skewers into the respective chutes 8.

On the other hand, in each chute 8, as shown in FIG. 11, a large number of tabs T rise with the insertion claws 37 of the piece 35 at the top, so that a large number of tabs T are successively placed on the skewer K. Is inserted through. Then, when the tab T rises and each insertion claw 37 of the leading piece 35 comes to just before the claw 30a of the hand unit 30, the twelfth
As shown in the figure, open the claws 30a, 30a of the hand unit 30 and
Is released, the cylinder shaft 33a of the cylinder 33 is contracted to raise the hand unit 30, so that the piece 35 and the tab T do not interfere with the hand unit 30.

Then, the tab T further rises and the leading insertion claw 37
When the claw 34a, 34a of the hand part 34 is reached, the claws 34a, 34a are opened to release the gripping of the skewer K, as shown in FIG. 21a〜
By raising 21d, the hand unit 34 is raised. At this time, the hand unit 30 also moves up.

Next, when the tab T is further raised to reach the hand portion 48 of the tab cutting device 40, the holding claws 48a, 48a of the hand portion 48 are closed to hold the piece 35, and then the cylinder shaft 45a of the cylinder 45 is closed.
Is extended, and the hand portion 48 is raised, so that the piece 35
Are moved upward from the chutes 8..., And the moving body 43 of the rodless cylinder 42 is retracted to stop at a position facing the claw 57 of the tab feeder 50 as shown in FIG.

Thereafter, by contracting the cylinder shaft 45a of the tab cutting device 40 and lowering the hand portion 48, as shown in FIG. 15, each insertion claw 37 of the piece 35 is inserted between the adjacent tabs T, Cylinder shaft of cylinder 54 of tab feeder 50
54a is extended, and the claw portions 57 are raised to enter the chute 8 from the groove 18 formed on the lower surface of the chute 8 and inserted between the adjacent tabs T. At this time, the insertion claw 37 and the claw portion 57 facing each other are in contact with the inclined surfaces of each other.

Next, the holding claws 48a, 48 of the hand portion 48 of the tab cutting device 40 are used.
a is opened to release the gripping of the piece 35, and then the moving body 43 of the rodless cylinder 42 is advanced, so that the hand portion 48
From the chute 8 to the position where it is withdrawn from the piece 35 and stopped.

On the other hand, at the same time, by moving the moving body 55 of the rodless cylinder 51 of the tab feeder 50 forward, as shown in FIG.
The tab group stabbed into the chute 8 is pushed into the stockyard 61 in front of the chute 8.

Thereafter, the above-mentioned tab group is pushed out in a direction orthogonal to the chute 8 by the cylinder 62 of the tab traversing device 60, and a place where the next tab group is pushed into the stock yard 61 is secured.

Then, by repeating the above steps, a large number of tabs T moving into the chute 8 are skewered every predetermined number and stored in the stock yard 61.

Therefore, according to the tub transport device having the above-described configuration, the tub 8 is punched out of the press device and carried out one after another.
.. Since the tabs T moving inside are automatically skewed and transported by a predetermined number of sheets and stored in the stock yard 61, the work efficiency is good without bothering the operator, and The burden on the operator can be reduced.

[Effects of the Invention] As described above, according to the tab transporting device of the present invention, when the skewer is gripped and supplied into the chute by the skewer, a large number of tabs are set up in the chute and the skewer is moved. Since the holes to be inserted are piled up and move upward,
Tabs are stabbed one after another on the skewer, and furthermore, at the head position of many tabs, the tabs are prevented from falling and the pieces that are pushed by the tabs and move in the chute are separated from the tabs at predetermined positions on the chute and Along the tab group, the tabs T are inserted between the tabs T at predetermined positions to divide a large number of tabs T into a fixed number of tab groups. Is pushed up on a chute in front of a predetermined position separated from the tab, and by repeatedly performing a step of pushing out the pushed up tab group in a direction intersecting with the chute by a tab traverse device, punched out from the press device. Since the tubs that are successively taken out and moving the chute can be automatically skewed and transported by a predetermined number of skewers, the work efficiency can be reduced without bothering the operator. Well, moreover, it is possible to reduce the burden on the workers.

[Brief description of the drawings]

1 to 10 show an embodiment of a transport device for a tab T according to the present invention. FIG. 1 is a front view of the transport device for a tab T, FIG. 2 is a plan view thereof, and FIG. (A) is a cross-sectional view taken along line AA in FIG. 2, FIG. 3 is a side view of a tub conveying device, FIG. 4 is a plan view of a skewer feeding device, FIG.
6 is a side view of the same, FIG. 7 is a front view of the skewering apparatus, FIG. 8 is a side view of the same, FIG. 9 is a side view of the tab cutting apparatus, and FIG. 9 (a) is an arrow B in FIG. FIG. 10 is a front view of the tab feeding device, and FIGS. 11 to 16 are explanatory diagrams for explaining a step of skewing the tab. K: Skewer, T: Tab, 2: Skewer, 3 ... Skewer feeder, 8: Chute, 20: Skewer, 35 ... Piece, 40: Tab cutter, 50 ... Tab feeder, 60 ... Tab traverse feeder.

 ──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-63-33130 (JP, A) JP-A-63-200398 (JP, U) JP-A-63-25222 (JP, U)

Claims (1)

(57) [Claims] 1. A chute, which is inclined with respect to a horizontal plane and has a ring-like shape, has a plurality of tabs standing upright and having a hole through which a skewer is inserted and moving upward, and a skewer in the chute. A skewer device that is gripped in the longitudinal direction of the chute and inserts the skewer into the hole of the tab by moving the tab; and the stub is provided on the chute movably along the longitudinal direction of the chute. A piece moving upward on the chute at the leading position of the tab by being pushed by the tab, and moving the piece away from the tab at a predetermined position on the chute and retreating along the chute, and adjacent tabs at the predetermined position A tab cutting device that is inserted between the tabs to divide a large number of tabs into a fixed number of tab groups; and a fixed number of tab groups that are movably provided along the chute and separated by the pieces. A tab feeder which engages the claw portion at the rear end of the group and pushes the piece up onto a chute in front of a predetermined position separated from the tab, and in a direction intersecting the chute thus pushed up with the chute. A tab conveying device comprising: an extruding tab lateral feeding device.