JPH0526009Y2 - - Google Patents

Description

[Detailed description of the invention] <Field of industrial application> The present invention is an elevator mechanism of a packaging device that moves a box-shaped product conveyed from a conveyance path upward by an elevator and wraps the product by abutting the top surface against the wrapping paper. relates to an elevator in which the width dimension of the elevator can be adjusted to match the width dimension of a box-shaped product.

<Prior Art> Conventionally, as an elevator mechanism for this type of packaging apparatus, there is one disclosed in Japanese Utility Model Publication No. 59-7201, for example.

To explain this, the elevator platform on which box-shaped products are placed is divided into two parts, front and back in the transport direction, and only the rear stage is attached so as to be movable in the transport direction, and the rear stage is moved. By moving the front mounting table closer to or away from the front mounting table, the front and rear width dimensions of both the mounting tables can be adjusted, so that even if the front and rear width dimensions of the box-shaped product change, packaging can be performed without replacing parts.

<Problems to be solved by the invention> However, in the elevator mechanism of such conventional packaging equipment, the front and rear loading tables are close to each other, so that the left and right sides of the box-shaped product come into contact between these loading tables. Even if the product guides are set up, it is not possible to make the left and right product guides long in the transport direction, and if the box-shaped product transported from the transport path shifts even slightly in the left-right direction on the rear mounting table, The product collided with one of the left and right product guides and became slanted, making it impossible to place the product correctly on the front and rear placement tables.

This becomes especially noticeable when the front and rear widths of box-shaped products become longer and the front and rear loading tables are spaced apart, resulting in box-shaped products getting caught in the elevator hoistway, causing malfunctions, and making it impossible to package them neatly. There's a problem.

In view of such conventional circumstances, the present invention aims to restrict the movement of box-shaped products transported from a transport path in the left-right direction and to correctly place them on the front and rear mounting tables.

<Means for solving the problem> The technical means taken by the present invention to solve the above problem is to install product guides that touch the left and right sides of the box-shaped product respectively between the front and rear mounting tables, and to The product guide was divided into two parts in the front and back in the conveyance direction, and the front product guide was connected to the front mounting table, and the rear product guide was linked to the rear mounting table, respectively, and a flexible product guide was stretched across the front and rear product guides. It is characterized by this.

<Function> The function of the present invention is that even if the front and rear product guides move toward or away from each other in the transport direction and the front and rear product guides are interlocked, the product guide stretched between the front and rear product guides expands and contracts. The left and right sides of the space above the space are closed to the left and right length of the box-shaped product.

<Example> Hereinafter, an example of the present invention will be described based on the drawings.

In this embodiment, as shown in FIG.
is divided into three parts in the left and right direction perpendicular to the transport direction, and a slide member 2 is disposed between the end of these parts, that is, the front end in the transport direction, and the elevator 3.

The slide member 2 is supported movably in the conveyance direction, and the screw rod 2c is inserted and screwed into the screw hole 2b opened in the conveyance direction.
The width of movement in the conveying direction can be adjusted with the rotation of c, and in the illustrated example, three drawer bottoms 2a are fixed to the top surface of the drawer bottoms 2a to protrude rearward in the conveying direction, and these drawer bottoms 2a, 2a, 2a The rear side of the transport path 1 is fitted into the fitting holes 1a, 1a, 1a formed in the front end surface of the conveyance path 1, respectively, so as to be slidable back and forth.

The elevator 3 consists of lifting rods 3a and 3b that are erected in parallel in the front and back of the transport direction, and mounting tables 3c and 3d that are installed horizontally at the upper ends of both rods 3a and 3b. A bearing portion 2d that supports the rod 3a so as to be movable back and forth, and supports the rod 3a so as to be movable up and down, is provided protruding from the front end surface of the slide member 2 to link the mounting table 3c on the rear side and the slide member 2. let

In addition, parallel rod-shaped parts 3c ₁ and 3d ₁ extending in the left-right direction in a bar-shape are provided on the rear end surface of the rear mounting table 3c and the front end surface of the front mounting table 3d, and these front and rear rod-shaped parts are provided. The left and right lengths of the portions 3c ₁ and 3d ₁ are approximately equal to the maximum left and right length of the conveyance path 1, and the front and rear rod-shaped portions 3
By stretching a plurality of wires 3e ₁ between c ₁ and 3d ₁ , a mounting surface 3e that is stretchable in the transport direction is formed flush with the upper surface of the drawer bottoms 2a, 2a, 2a, and Product guides 4, 4 are erected to abut the left and right side surfaces of the box-shaped product A transported on the front and rear mounting tables 3c, 3d, respectively.

These left and right product guides 4, 4 are flat plates extending in the vertical direction, and have their upper ends protruding upward from the front and rear placement surfaces 3c, 3d, and are each divided into two in the conveyance direction, with the lower ends of the front product guides 4a, 4a. are fixed to left and right guide rails 5, 5 which will be described later, and the lower ends of the rear product guides 4b, 4b are fixed to left and right moving bodies 6, which will be described later.

On the other hand, side plates 1b,
1b are erected in accordance with the left and right length dimensions of the box-shaped product A, and a band-shaped sliding plate 1 extends in the conveyance direction at the terminal end side of these left and right side plates 1b, 1b, that is, at the lower end of the rear side.
b ₁ and 1b ₁ are respectively disposed so as to be movable back and forth, and
Guide rails 5, 5 are horizontally installed in parallel to the transport direction from below the rear end of each side plate 1b, 1b to below the front and rear bar-shaped parts 3c ₁ , 3d ₁ of the elevator 3.

The left and right guide rails 5, 5 are strip plates in which elongated holes 5a, 5a extending in the transport direction are opened in the left and right direction, and the rear ends are connected to the side plates 1b, 1 by connecting pieces 5b, 5b.
b, and the bearing 3f of the front lifting rod 3d is inserted in the left-right direction across the screw holes 5c, 5c opened in the left-right direction at the front end of each, and both forward and reverse screws are inserted in the left-right direction. By inserting the external screw shafts 5d and screwing them together, the screw shafts 5d
As the transport path 1 rotates, it moves toward or away from the right and left center of the conveyance path 1 by the same length in the left and right direction.

In addition, the lower ends of the aforementioned front product guides 4a, 4a are fixed and erected at the front portions of the left and right guide rails 5, 5, respectively, so that the front product guides 4a, 4
a is connected to the front mounting table 3d via the rails 5, 5 and the screw shaft 5d, and movable bodies 6, 6 are slidably engaged with the outer peripheral surfaces of these rails 5, 5.

The left and right moving bodies 6, 6 have openings 6a, 6a through which the guide rails 5, 5 are inserted in the front and back direction, and through holes 6b, 6b, which are coaxially opened in the left and right direction.
b, 6b and the long holes 5a of the guide rails 5, 5,
5a, the pivot shafts 2e, 2e extending in the left-right direction, which are horizontally disposed on the left and right side surfaces of the slide member 2, are inserted in a loosely fitted manner, respectively, and the inner ends of the upper surface thereof are connected to the left and right sliding plates _1b1 , _1b1. The lower ends of the aforementioned rear product guides 4b, 4b are respectively fixed and erected at the front end.

Therefore, the rear product guides 4b, 4b are linked to the rear mounting table 3c via the left and right moving bodies 6, 6 and the slide member 2.

Furthermore, the above-mentioned front and rear guides 4a, 4a, 4b, 4b
In between, there are product derivatives 4c, 4 that can be expanded and contracted in the transport direction.
c are stretched horizontally.

In the case of this embodiment, the product guide 4c is a round belt made of rubber or the like, and one end of the belt is fixed to the outer surface of the lower part of the front product guide 4a in the left-right direction, and the product guide 4c is inserted through the guide 4a to form a recess on the inner surface. Groove 4a ₁
Rear product guide 4
A horizontal pulley 6c is fitted into a groove _4b1 formed on the inner and rear surfaces of the movable body 6 in the left-right direction and protrudes outward in the left-right direction by making a U-turn. The other end is connected to a rod 5b1 protruding from a connecting piece 5b connecting the guide rail 5 and the side plate _1b .

Furthermore, by interposing a tension spring 4d between the other end of the belt 4c and the rod _5b1 ,
Tension is applied to the belt 4c to keep it taut at all times.

Then, the slide member 2 is moved in the conveying direction by the rotation of the screw rod 2c, and the front and rear mounting tables 3c, 3 are moved.
When the width dimension of d is adjusted to the front and rear width dimension of the box-shaped product A, the left and right moving bodies 6, 6 move on the guide rails 5, 5 and move from the fitting holes 1a, 1a, 1a of the conveyance path 1 to the drawer bottom 2b. , 2b, 2b are pulled out or stored from the side plates _1b , 1b, respectively, and the rear product guides 4b, _4b are moved toward or away from the front product guides 4a, 4a in the transport direction. Belts 4c, 4c that guide the left and right sides of the box-shaped product A are stretched over the inner ends of the front and rear product guides 4a, 4a, 4b, and 4b in the left-right direction.

Further, when the left and right guide rails 5, 5 are moved toward or away from each other by the same length in the left and right direction due to the rotation of the screw shaft 5d, the left and right side plates 1b, 1b are moved accordingly.
As the front product guides 4a, 4a approach or move away from each other in the left and right direction, the left and right moving bodies 6, 6 move toward the pivot 2.
e, 2e, the left and right sliding plates 1b ₁ , 1b ₁ rear product guides 4b, 4b and belts 4c, 4c approach or separate in the left and right direction.

Therefore, in this embodiment, since the product guide 4c is a round belt, even if the box-shaped product A has a flange protruding from the lower edge, such as a can box, the front and rear mounting tables 3c and 3d are The collar valve will not get caught when moving.

In the above-mentioned embodiment, the case where the product derivative 4c is a round belt is shown, but the product derivative 4c is not limited to this. For example, it may be a belt-shaped flat belt, or one end of the round belt can be pulled out from the product guide 4 and used as a tension spring. Although the tension is applied by the tension spring 4d, this is not limited, and it goes without saying that if the product derivative 4c itself is made of a material with excellent elasticity, there is no need to apply tension by the tension spring 4d.

<Effects of the Invention> Since the present invention has the above configuration, it has the following advantages.

Even if the front and rear product guides move toward or away from each other in the transport direction and the front and rear product guides are interlocked, the product guide stretched between the front and rear product guides expands and contracts, causing the product guides to move upwardly between the front and rear product guides in the left and right directions. Since it is closed to the left and right length dimensions of the box-shaped product,
It is possible to restrict the movement of the box-shaped product transported from the transport path in the left-right direction and to correctly place it on the front and rear mounting tables.

Therefore, the box-like product does not get caught in the hoistway of the elevator, which could cause a malfunction, unlike in the conventional case, and the box-like product can always be neatly packaged regardless of the front and rear width dimensions of the box-like product.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an elevator mechanism of a packaging device showing an embodiment of the present invention, and shows the case where the front and rear width dimensions of the front and rear mounting tables and the left and right length dimensions between the left and right product guides are matched to the largest box-shaped product; Figure 2 is a longitudinal front view of the same, Figure 3 is a longitudinal side view of the same, and Figure 4 is a case where the front and rear width dimensions of the front and rear mounting tables and the left and right length dimensions between the left and right product guides are adjusted to the smallest box-shaped product. FIG. A...Box-shaped product, 1...Transportation path, 3...Elevator, 3c...Rear mounting table, 3d...Front mounting table, 4...Product guide, 4a...Front product guide, 4b...Rear Side product guide, 4c...Product derivative.

Claims (1)

[Scope of utility model registration request] The front and rear loading tables of the elevator attached to the end of the conveyance path for conveying the box-shaped product are provided so that they can move toward or away from each other in the conveying direction, and the box-shaped commodity is moved upward by the rise of these front and rear loading tables, and the upper surface is covered with wrapping paper. In the elevator mechanism of the packaging device that wraps around the body by bumping against each other, product guides that contact the left and right sides of the box-shaped product are erected between the front and rear loading tables, respectively, and the product guide is divided into two in the front and back of the transport direction to separate the front product. This elevator mechanism for a packaging device is characterized in that a guide is linked to a front mounting table, a rear product guide is linked to a rear product guide, and a stretchable product guide is stretched across the front and rear product guides.