JPH0815906B2 - Packaging machine discharge mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to front and rear side edges of a box-shaped product which are wrapped around a wrapping paper and project from the left and right side surfaces of the product in a rectangular tube shape so as to form a rectangular tube. Also, the present invention relates to a discharging mechanism of a packaging device in which a lower edge is folded along a side surface of a product, the remaining upper edge is folded and stuck, and the sheets are once stacked and then discharged individually.

<Prior art> Conventionally, the packaged goods are moved up by the lift of the elevator, and the left and right folding guides that can adjust the height are used for folding and sticking, and on the left and right latches that project freely in and out of the elevator passage. The one that is locked and stacked sequentially from below is disclosed in Japanese Utility Model Publication No. 59-4887.This type of product has a chain with a pusher projecting in the outer peripheral direction at the upper position of the stacking part so that it can move laterally. It is set up in the vertical direction, and the pusher is moved horizontally to discharge one packaged product from the top of the stacking part, so that the copper winding glued part is pressed against it during stacking to dry it and the upper edge is attached. The glue on it is dried to prevent the wrapping paper from slipping when it is discharged.

<Problems to be solved by the invention> However, when the height of the packaged product changes in the discharge mechanism of such a conventional packaging device, the height of the left and right folding guides is increased or decreased according to the height position. It is necessary to adjust the height of the pusher up and down by the number of new products stacked, and the adjustment work is very troublesome, and if you forget to adjust the pusher height position, There is a problem that the top product is caught in the chain and the pusher malfunctions, which causes a failure such as the top product being pushed up and crushed by the upward movement of the next product by the elevator.

Therefore, it is conceivable to eliminate the height adjustment of the pusher by directly ejecting the first packaged product that is locked on the left and right latches by the chain pusher. In addition, since the drying and the drying of the upper edge glued portion are insufficient, there is a problem that the body winding portion and the upper edge are displaced at the time of discharging and the packaging is disturbed.

In view of such conventional circumstances, the present invention facilitates the height adjustment of the folding guide and the pusher by changing the height of the packaged product while securing the pressure and the drying time of the wrapping paper glued portion, and when the pusher malfunctions, The purpose is to prevent crushing of products.

<Means for Solving the Problems> The technical means taken by the present invention to solve the above problems are as follows: It is characterized in that a pusher projecting into the elevator ascending / descending path is arranged so as to be movable back and forth and the height is adjustable by interlocking with the folding guide.

<Operation> The operation of the present invention is to move the height position of the folding guide up and down, so that the pusher moves up and down by the same height and is locked on the left and right latches. It is automatically arranged at a position opposite to.

<Example> Hereinafter, an example of the present invention will be described with reference to the drawings.

In this embodiment, as shown in FIG. 1, latches (2) and (2) and movable frames (3) and (3) are provided on the inside of the pair of left and right main frames (1) and (1) in the left-right direction. Frame (3)
Inside the (3), chains (4) and (4) for driving the pushers (5) and (5) and folding guides (6) and (6) are provided, respectively.

The main frames (1) are continuously installed at the end of the transfer path (a) so as to oppose each other in the left-right direction orthogonal to the transfer direction, and are screwed so as to be able to move back and forth between these main frames (1) (1). Worn screw shaft (1
By rotating a), they are supported so that they can move toward and away from each other in the left-right direction according to the left-right length dimension of the box-shaped product (A), and a pair of front and rear mounting plates (1b) are attached to the front-rear end faces in the transfer direction. ) (1b), and attach these front and rear mounting plates (1
b) Install the latch (2) across (1b).

The latch (2) is formed by projecting a plurality of mounting surfaces (2a) ... Into the hoistway (7a) of the elevator (7) at appropriate intervals in the transfer direction, and these mounting surfaces (2a). Bend the tip diagonally downward and attach the front and rear lower ends to the front and rear mounting plates (1b) (1
Each of them is rotatably attached to b), and the mounting surface (2a) ...
By extending the base end of the and constantly energizing it with a tension spring (2c), the mounting surface (2a) is normally held horizontally and the inclined surface (2b) is gradually moved upward and downward as it goes upward. (7
a) Incline so that it projects inside.

When the left and right upper edges of the packaged product (A) hit the inclined surfaces (2b) ... (2b) of the left and right latches (2) and (2) due to the rise of the elevator (7), the placing surfaces (2a) ... (2a). ) ...
Is gradually pushed outward so that the product (A) can be moved upward, and when the left and right side surfaces of the product (A) have finished passing, the placing surfaces (2a) ... (2a) ... become horizontal again. The packaged product (A) which projects and is packaged above these is locked, and the elevator (7) is repeatedly moved up and down, so that the packaged product (2a) on the left and right mounting surfaces (2a). A) is piled up from below, and the body winding glued part is pressed and dried.

Inside the main frame (1), a pair of front and rear screw rods (1c) (1c) extending in the vertical direction are rotatably supported, respectively, and movable across these front and rear screw rods (1c) (1c). Build a frame (3).

The movable frame (3) has front and rear screw holes (3a) (3a) screwed with the above-mentioned screw rods (1c) (1c), and is vertically adjustable by rotating these screw rods (1c) (1c). And a pair of front and rear support shafts (3b) (3b) that extend vertically and are rotatably supported on the upper part of the inner surface of the front support shaft (3b) (3b). Sprocket (3
c) Wind the chains (4) and (4) horizontally over (3c).

In the illustrated example, the front support shafts (3b) located on the left and right
By extending (3b) downward and screwing the connecting rods (3d) over them, both shafts (3b) and (3b) are interlocked, and one of the lower ends is connected to the motor (3e). The mounting surface (2a) ... (2
a) ... The left and right chains (4) and (4) are energized for a predetermined time each time the packaged product (A) is locked on the placing surfaces (2a) ... (2a) in association with the retractable movement of the chains. Rotate half a turn.

The chain (4) is arranged at a height position facing the left and right side surfaces of the second packaged product (A) from the bottom, which is locked on the placing surfaces (2a) ... (2a). Two pushers (5) are arranged at a position, in the illustrated example, a half-circumferential position.

The pusher (5) is fixed by protruding the outer periphery of the chain (4) by connecting the base end thereof to the chain (4),
The transfer claw (5a) is vertically provided at the outer end, and the elevator (7) is provided only during a substantially half circumference when the transfer claw (5a) rotates the chain (4).
Of the second packed product (from the bottom) which is projected into the ascending / descending passage (7a) of the chain (4) and is located at both front and rear ends of the chain (4) when the chain (4) is stopped and is pushed up by the upward movement of the elevator (7) ( I try not to get in the way of A).

Therefore, the packaged product (A) is more effective than the elevator (7).
When the packaged goods (A) are moved upward and pushed up by pushing up the packaged goods (A) locked on the left and right latches (2) and (2), the left and right chains (4) rotate and the pusher (5) ) (5) moves forward and pushes the second packaged product (A) from the bottom by the left and right conveying claws (5a) (5a) and transfers it to the discharge path (8) described later.

In addition, guide plates (3e) (3f) which are erected flush with the elevator (7) hoistway (7a) above and below the chain (4).
And the upper and lower guides (3e) and (3f) are connected to the movable frame (3) to interlock with the frame (3).
The lower guide plate (3f) is provided with a notch (3f ₁ ) on the lower surface of the lower guide plate (3f) that fits vertically with the mounting surface (2a) so that the movable frame (3) moves along with the upper tongue. The lower guide (3f) does not hit the latch (2) even if it moves up and down.

On the other hand, a folding guide (6) is provided on the lower portion of the inner surface of the movable frame (3).

The folding guides (6) are a pair of upper and lower folding guides (6) which are erected flush with the hoistway (7a) of the elevator (7).
a) It is a horizontal gap (6c) opened between (6b), and the elevator (7) is raised with the upper edge (A ₁ ) of the packaged product (A) inserted in the gap (6c). As a result, the horizontally held upper edge (A ₁ ) is attached with the adhesive applied to the side surface of the product (A), and the packaging is completed.

Further, at the rear end of the inner surface of the movable frame (3), a return plate for horizontally folding the upper edge (A ₁ ) of the packaged product (A) recessed along the left and right sides of the end of the transfer path (a) ( The end of the support rod (a ₂ ) that supports the peripheral edge of the a ₁ ) and the upper edge (A ₁ ) from below to prevent sagging is connected, and the pusher (5) is attached to the front end of the inner surface of the movable frame (3). A discharge path (8) for supporting the pushed product (A) is provided horizontally.

The discharge path (8) is configured to be expandable and contractible in the left-right direction, and by moving the movable frames (3) and (3) left and right and up and down according to the left-right length and height of the product (A),
In parallel with this, the horizontal length and vertical height are automatically adjusted, and the bottom surface has a plate (8a) that can be moved back and forth, and the plate (8a) is attached to the front and back of the product (A). Move it back and forth according to the width.

Further, heaters (9) are respectively provided on the back surfaces of the left and right side plates (8b) (8b) and the back surface of the lower guide plate (3e) of the discharge path (8), and the body winding glue portion of the product (A) is provided. And upper edge (A ₁ )
Force the glue to stick to dry.

When the left and right movable frames (3) and (3) are moved up and down by the rotation of the screw rods (1c) ..., the pushers (5) (5) and the folding guides (6) (6) are correspondingly moved. Move up and down by the same size and set the height position of the folding guides (6) (6) to the height of the left and right upper edges (A ₁ ) (A ₁ ) of the packaged product (A), that is, the height of the packaged product (A). Adjust to position and pusher (5)
(5) is automatically adjusted to a position facing the side surface of the second packaged article (A) from the bottom, which is locked on the latches (2) and (2).

Although the pusher (5) is laterally moved by the chain (4) in the embodiment shown above, the present invention is not limited to this, and if the pusher (5) is laterally moved, an air cylinder or the like may be used. The driving means is arbitrary.

<Effects of the Invention> By vertically moving the height position of the folding guide, the pusher moves up and down by the same height and is locked on the left and right latches so as to face the side surface of the second package from the bottom. Since it is automatically placed in the position, even if the height of the packaged product changes, the height position of the pusher can be adjusted just by adjusting the height position of the folding guide to the height of the product, like the conventional one. Since it is not necessary to adjust the folding guide and pusher separately, the adjustment work is easy, and the pressure and drying time of the wrapping paper glue part can be secured, and since the pusher is not placed above the stacking part, The product will not be crushed even if the immobility failure occurs.

Since the packaged products are stacked on the latch only in two steps, the height of the top product is lower than the conventional product, and the pusher is not placed above the stacking part, so the vertical size of the discharge mechanism is compact. The entire device can be miniaturized.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional side view of a discharging mechanism of a packaging apparatus according to an embodiment of the present invention, in which the heights of a folding guide and a pusher are adjusted to the highest, and FIG. 2 is a vertical front view of the same. The figure is the same plan view, and FIG. 4 is a vertical cross-sectional side view showing a case where the heights of the folding guide and the pusher are adjusted to the lowest. A: Packaged product, A ₁ ... Upper edge 2 ... Latch, 5 ... Pusher 6 ... Folding guide, 7 ... Elevator 7a ... Elevating passage

Claims (1)

[Claims] 1. A packaged product that is packaged in such a manner that only the left and right upper edges of the box-shaped product horizontally project from the left and right side surfaces is moved upward by raising the elevator, and left and right by a pair of left and right folding guides whose height can be adjusted. The upper edge is folded and attached along the side surface of the product, and it is locked on a pair of left and right latches that project freely in and out of the elevator's lift passage, and stacked sequentially from the bottom. In the discharging mechanism of the packaging device for discharging in the direction, a pusher projecting into the elevator hoistway is arranged at a position facing the side of the second packaged product from the bottom, which is locked on the left and right latches, so that the pusher can move back and forth. A discharging mechanism of a packaging device, wherein the pusher is provided so as to be adjustable in height by interlocking with the folding guide.