JPH0872826A - Structure for switching height of transportation rail - Google Patents

Abstract

PURPOSE: To provide a structure for switching the height of a transportation rail wherein the height of the rail can be switched to a desired height using a simple structure and moreover to set the height of the rail with a high degree of accuracy. CONSTITUTION: There are provided a rail supporting rod 23 for supporting a rail 7, a vertically moving air cylinder 25 for vertically moving the rod 23, a contact plate 33 mounted to the rod 23, and a plurality of height determining rods 27 having different heights. And under such conditions that the plate 33 has been lifted by the rod 23, a supporting member 29 for vertically supporting the rods 27 at positions lower than the plate 33 and a supporting member driving means 31 for moving the member 29 so that, under such conditions that the plate 33 has been lifted by the rod 23, a desired rod 27 is positioned below the plate 33 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer rail height switching structure suitable for switching the transfer rail height to a plurality of levels.

[0002]

2. Description of the Related Art For example, in order to obtain a paper packaging container filled with an object to be filled such as sake and juice, the following steps are performed. The outline will be described with reference to FIG. 1. In FIG. 1, reference numeral 1 is a container bottom forming apparatus, and 3 is a filling apparatus. The container bottom forming apparatus 1 is provided with a turret 103 composed of eight mandrels 101. The mandrel 101 is attached with a paper container 5 whose top and bottom are open.
By intermittently turning 03, the container 5 having a bottom formed by the various mechanisms 105 arranged on the outer periphery of the turret 103 is produced. Next, this container 5 is pulled out from the mandrel 101 with its bottom portion facing downward and supplied to the transfer line L of the filling device 3.

In the filling device 3, a primary temporary folding station 3A, an object filling station 3B, a secondary temporary folding station 3C, a heating station 3D, and a folding station 3 are arranged above the transportation line L along the transportation line L.
E is arranged. The carrier line L extends linearly and has a rail 7 on which the bottom of the container 5 is placed, and a chain 9 wound along the rail 7 above the rail 7.
The rail 7 is composed of a carrier 11 and the like attached to a chain 9, and rails 7 having a predetermined length are arranged on the same straight line. The container 5 supplied to the transfer line L is slid on the rail 7 by the carrier 11, and the primary temporary folding station 3A, the filling object filling station 3B, the secondary temporary folding station 3C, the heating station 3D,
After going through the folding station 3E in sequence, a paper packaging container 5 is obtained, in which the object to be filled is filled and the top is folded into a chevron shape or the like.

On the other hand, when changing the capacity of the container 5,
From the viewpoint of molding, handling, etc., it is often the case that the cross-sectional area of the container 5 is unchanged and only the height is changed. When the height of the container 5 changes, in the conventional filling device 3, each primary temporary folding station 3A, the filling object filling station 3B,
Secondary temporary folding station 3C, heating station 3
D, the height of the folding station 3E is not changed, and the height of the rail 7 is changed.

[0005]

In the case of changing the height of the rail 7 in this way, conventionally, for example, an air cylinder extending vertically is arranged below the rail 7, and the air cylinder and the rail 7 are connected to each other. And the air cylinder was extended to the rail height for the container with the smallest capacity, and the air cylinder was contracted to the rail height for the container with the largest capacity. However, when the number of types of containers 5 having different heights increases to 3, 4, and 5, the number of air cylinders to be used is increased and the plurality of rails 7 are the same in the method using such an air cylinder. This is even more the case when they are arranged in a straight line, and since it is necessary to release the connection state between the other air cylinder and the rail 7 when using one air cylinder, An engaging / disengaging mechanism must be provided between them, which causes a problem that the structure becomes complicated.
The present invention has been devised in view of the above circumstances, and an object of the present invention is to make it possible to switch the rail height to a desired height with a simple structure, and to make the rail height highly accurate. The purpose of the present invention is to provide a structure for switching the height of a transport rail that can be set by.

[0006]

In order to achieve the above object, the present invention is a rail height switching structure for guiding an object to be conveyed, the rail support extending vertically and supporting the rail at its upper end. Rod, a vertical moving means for moving the rail supporting rod up and down, a contact member attached to the rail supporting rod, a plurality of height positioning rods having different heights, and the contact member Is raised by the rail supporting rod, the supporting member which vertically supports the plurality of height positioning rods at a position lower than the corresponding contact member, and the abutting member are raised by the rail supporting rod. In this state, a support member drive means for moving the support member so that the desired height positioning rod is located below the contact member is provided.

Further, according to the present invention, the supporting member is arranged so as to be rotatable in a horizontal plane, and the plurality of height positioning rods are provided upright on the same circumference with the center of rotation of the supporting member as a center. It is characterized by Further, the invention is characterized in that the driving means for the supporting member is provided with a power source. Further, the present invention is characterized in that the turning angle of the support member is detected by a plurality of protrusions provided on the peripheral surface of the support member and a sensor that detects the presence or absence of these protrusions. Further, the present invention comprises an air cylinder in which the vertical moving means is arranged in parallel with the rail supporting rod and is connected to the rail supporting rod, and the lowering of the rail supporting rod is performed in a cylinder chamber of the air cylinder. It is characterized in that it is performed by removing the air. Further, the present invention is characterized in that the supporting member is provided with an abutting portion capable of abutting the abutting member between the height positioning rods.

[0008]

The rail supporting rod and the contact member are lifted by the vertical moving means. Next, the supporting member is moved by the supporting member driving means so that the desired height positioning rod is located below the contact member. Next, the rail supporting rod and the abutting member are lowered by the up-and-down moving means, and the abutting member abuts on the height positioning rod, whereby the height of the rail is switched and the rail is moved to a desired height. Is set.

[0009]

EXAMPLES Examples of the present invention applied to the case of switching the height of the rails 7 of the conveying line L of the filling device 3 shown in FIG. 1 will be described below. 2 is a front view of the structure for switching the height of the transport rail, FIG. 3 is an enlarged front view of the main part, and FIG. 4 is a plan view of the same. In FIG. 2, reference numeral 7 is a rail that constitutes the transfer line L of the filling device 3, 13 is a frame of the filling device 3, and the bottom of the container 5 is placed on the rail 7 and slid on the rail 7 by the carrier 11. Go.
Reference numeral 21 denotes a rail height switching structure according to the embodiment. The height switching structure 21 is a rail supporting rod 23 extending vertically below the rail 7 and a vertical movement air cylinder for vertically moving the rail supporting rod 23. (Vertical movement means) 25
A plurality of height positioning rods 27 for setting the height of the rail 7, a support member (support means) 29 for supporting the height positioning rod 27, and a swing drive means 31 (support Drive means) and the like.

The rail supporting rod 23 is a frame 1
It is supported by a bearing 2301 attached to the third side so as to be vertically movable, the upper end of the rail supporting rod 23 is fixed to the rail 7, and the lower end of the rail supporting rod 23 is slightly lower than the middle portion in the longitudinal direction. A contact plate (contact member) 33 is attached to the side portion.

The vertical movement air cylinder 25 is erected upright from the frame 13 side below the rail 7 so as to be located near the rail supporting rod 23, and the upper end of the piston rod 2501 of the vertical movement air cylinder 25 and the rail. A connecting member 25 is provided at an intermediate portion in the longitudinal direction of the supporting rod 23.
Connected by 03.

As shown in FIGS. 3 and 4, the support member 29 includes a support plate 35, a tubular member 37, and a support shaft 3.
It is composed of 9 and 9. The support plate 35 has a circular shape, and a notch 3501 having a contour larger than that of the tip portion of the contact plate 33 is formed on the outer peripheral portion of the support plate 35, and the support plate 35 is fastened with a screw or the like from the center of the lower surface thereof. The support shaft 39 is vertically provided. The tubular member 37 includes an annular plate portion 3701 having substantially the same outer diameter as that of the support plate 35, and a cylindrical portion 3703 extending downward from the outer edge of the annular plate portion 3701. The annular plate portion 3701 is in contact with the lower surface of the support plate 35 and the tubular member 37, and both are fastened with screws or the like. The support shaft 39 is rotatably supported by bearings 3901 and 3903 attached to the frame 13 side, so that the support member 29 is supported rotatably in a horizontal plane.

On the outer peripheral portion of the support plate 35, height positioning rods 27 stand at 7 out of 8 locations at equal intervals in the circumferential direction on the same circumference centered on the center of the support plate 35. The cutout 35 is provided at the remaining one place.
01 is arranged. The height positioning rod 27
Has a hexagonal cross section and is formed with different lengths. In order from the longest, 0.5 liter container, 0.7 liter container, 0.9 liter container, 1.1 liter container,
For 1.3 liter container, 1.5 liter container and 1.8 liter container.

The supporting member 29 is such that when the vertical movement air cylinder 25 is extended and the contact plate 33 is lowered from the raised state, the lower surface of the contact plate 33 is the upper surface of any height positioning rod 27. The contact plate 33 or the contact plate 33 is disposed at a position to be inserted into the notch 3501.

Further, the cylindrical portion 3703 of the cylindrical member 37.
4, bolts 41 are fastened in the same phase as that of the height positioning rods 27, as shown in FIG. The bolts 41 are selectively arranged at three different heights as shown in a side view of the support member in FIG. 5 and a development view of the cylindrical portion in FIG. The proximity switch 43 for detecting the presence or absence of the head of the bracket 41 is a bracket 430.
The proximity switch 43 detects the presence or absence of the head of the bolt 41 to determine whether or not the desired height positioning rod 27 is located at a predetermined position.

The swing drive means 31 is shown in FIG.
As shown in the plan view of the lower part of the height switching structure in FIG.
The frame 1 extends horizontally below the support member 29.
The rotating air cylinder 51 supported on the third side and the drive shaft 53 vertically extending below the support shaft 39 are provided. The upper part of the drive shaft 53 is supported by the joint 5301. The drive shaft 53 is connected to the shaft 39, and
In the gear box 55 attached to the 3 side, the bearing 55
It is rotatably supported by 01. A pinion 57 is attached to the drive shaft 53 in the gear box 55, and the bearing 550 is engaged with the pinion 57.
The rack 59 is movably supported via the unit 3. Piston rod 5101 of the turning air cylinder 51
The rack 59 and the rack 59 are connected by a connecting member 5103, and the rack 59 is moved by the expansion and contraction of the turning air cylinder 51.

In the embodiment, the transport line L is constructed by arranging a plurality of rails 7 having a predetermined length on the same straight line, and for each rail 7, the rail supporting rod 23, the vertical movement air cylinder 25, and the height. The positioning rod 27, the support member 29, the drive shaft 53, the gear box 55, and the rack 59 are provided, and the rack 59 in each gear box 55 is attached to the end portion of the rack 59 as shown in FIG. 7. Fitting 590
1. The connecting rod 5903 is connected to the rack 59 to which the turning air cylinder 51 is connected, and the racks 59 in the plurality of gear boxes 55 are linearly moved by the single turning air cylinder 51. .

Next, the movement of the rail height switching structure 21 will be described. First, the vertical movement air cylinder 25 that supports each rail 7 extends, and the contact plate 33 rises via the rail supporting rod 23, as shown by an imaginary line in FIG. Next, the turning air cylinder 51 expands and contracts, the rack 59 linearly moves, and the pinion 57 rotates, which causes the drive shaft 53 to rotate and the supporting member 29.
Turns. At this time, the gear box 55 for each rail 7
The inner racks 59 are connected by the joints 5901 and the connecting rods 5903, respectively, so that the support member 29 pivots for each rail 7. Then, in a state where the desired height positioning rod 27, for example, the 0.5 liter height positioning rod 27 is located below the contact plate 33, this state is the head of the bolt 41 and the proximity switch. Four
3 and the operation of the turning air cylinder 51 is stopped.

Next, the air in the cylinder chamber of the vertical movement air cylinder 25 is released, and the vertical movement air cylinder 25 is contracted by the weight of the rail 7 and the rail supporting rod 23, and the rail supporting rod 23 and the contact plate. 33 is lowered, and the lowering of the rail supporting rod 23 and the contact plate 33 is stopped in a state where the lower surface of the contact plate 33 is in contact with the upper surface of the height positioning rod 27 for 0.5 liter. As a result, the height of the rail 7 is switched to the height of the container 5 for 0.5 liters, and the plurality of rails 7 forming the transport line L are switched. Similarly, by contacting the lower surface of the contact plate 33 with the upper surface of another desired height positioning rod 27, the rail height corresponding to each capacity is set, and FIGS.
As shown in FIG.
By contacting the upper surface of the annular plate portion 3701 of the tubular member 37 in 01, the rail 7 is set to the height of the container 5 for 2.0 liters.

As described above, according to this embodiment, the container 5 is provided with a simple structure in which the plurality of height-positioning rods 27 are used and the support member 29 on which the height-positioning rods 27 are erected is rotated. The rail 7 can be switched to a height according to the capacity of the rail. Further, since the height of the rail 7 is determined by the lower surface of the contact plate 33 and the upper surface of the height positioning rod 27 contacting each other, the height of the rail 7 can be set with high accuracy. . Further, since a plurality of height positioning rods 27 are provided upright on the outer peripheral portion of the support member 29 and the support member 29 is swung, the rail 7 can be switched to a plurality of levels of height without taking up a large space. It becomes possible.

In the embodiment, the case where the supporting member 29 is rotated by using the rotating air cylinder 51 has been described, but the supporting member 29 may be manually rotated. When the support member 29 is rotated by using the power source such as the turning air cylinder 51 as in the embodiment, for example, it is preferable to provide a plurality of operation buttons corresponding to the plurality of height positioning rods 27. It becomes possible to automatically switch the height positioning rod 27 by pressing the operation button. Further, in the embodiment, the case where the plurality of height positioning rods 27 are provided upright on the outer peripheral portion of the support member 29 has been described, but the support member 29 is formed in a plate shape having a narrow width and a predetermined length. A plurality of height positioning rods 27 may be provided upright at intervals in the longitudinal direction of the plate-shaped support member 29. In this case, the height of the rail 7 can be adjusted by linearly moving the support member 29. Switching is performed. Further, in the embodiment, the case where the present invention is applied to the rail 7 which constitutes the transfer line L of the filling device 3 has been described, but the present invention is widely applied to the transfer rail 7 of various devices.

[0022]

As is apparent from the above description, the present invention is
A rail height switching structure for guiding a transported object, comprising: a rail supporting rod extending vertically and supporting the rail at its upper end; a vertical moving means for vertically moving the rail supporting rod; A contact member attached to the rail supporting rod, a plurality of height positioning rods having different heights, and a position lower than the contact member when the contact member is raised by the rail supporting rod. With a support member that vertically supports the plurality of height positioning rods, and the contact member is raised by the rail support rod,
A supporting member drive means for moving the supporting member so that the desired height positioning rod is located below the abutting member is provided. Therefore, the height of the rail can be switched to a desired height without securing a large space with a simple structure, and the height of the rail can be set with high accuracy.

[Brief description of drawings]

FIG. 1 is a perspective view of a container bottom forming device and a filling device.

FIG. 2 is a front view of a transfer rail height switching structure.

FIG. 3 is an enlarged front view of a main part of a structure for switching the height of a transport rail.

FIG. 4 is a plan view of a main part of a structure for switching the height of a transport rail.

FIG. 5 is a side view of a support member.

FIG. 6 is a development view of a cylindrical portion.

FIG. 7 is a plan view of a lower portion of the height switching structure.

[Explanation of symbols]

 5 Container 7 Rail 21 Height Switching Structure 23 Rail Support Rod 25 Vertical Movement Air Cylinder 27 Height Positioning Rod 29 Support Member 31 Swiveling Drive Means 33 Contact Plate 41 Bolt 43 Proximity Switch 51 Swiveling Air Cylinder 53 Drive Shaft 57 Pinion 59 rack

Claims (6)

[Claims] 1. A rail height switching structure for guiding a transported object, comprising: a rail support rod extending vertically and supporting the rail at an upper end thereof; and a vertical body for vertically moving the rail support rod. Moving means, an abutting member attached to the rail supporting rod, a plurality of height positioning rods having different heights, and the abutting member in a state where the abutting member is lifted by the rail supporting rod. A support member for vertically standing and supporting the plurality of height positioning rods at a position lower than the member, and a desired height positioning rod with the contact member being raised by the rail supporting rod. And a support member driving means for moving the support member so as to be located below the contact member. 2. The support member is pivotably arranged in a horizontal plane, and the plurality of height positioning rods are provided upright on the same circumference centered on the pivot center of the support member. 1. The structure for changing the height of the transport rail according to 1. 3. The transfer rail height switching structure according to claim 1, wherein the support member driving means includes a power source. 4. The transport rail according to claim 2, wherein the rotation angle of the support member is detected by a plurality of protrusions provided on the peripheral surface of the support member and a sensor that detects the presence or absence of these protrusions. Height switching structure. 5. The up-and-down moving means is composed of an air cylinder arranged in parallel with the rail supporting rod and connected to the rail supporting rod, and the rail supporting rod descends by air in a cylinder chamber of the air cylinder. 5. The height changing structure of the transport rail according to claim 1, wherein the height is changed by removing the. 6. The support member is provided with an abutting portion capable of abutting against the abutting member between the height positioning rods. Transfer rail height switching structure.