JPH01267115A - Commodity packing method and equipment - Google Patents

Abstract

PURPOSE:To improve the conveying ability, by arranging a bottle stopper on a bottle conveyor to be diagonal to the advancing direction, gripping bottles, which have been aligned in a staggered piling up state, by a grip block utilizing the frictional resistance which works between the weight of bottles and the conveyor chain, transferring to the packing pattern and realigning the bottles. CONSTITUTION:Bottles 35 which have been carried by a bottle conveyor 10, guided by a bottle guide 39, push boards 43, 44 and a bottle guide 40, hit a bottle aligning stopper 42 and stop. The bottle aligning stopper 42 has been tilted to the advancing direction of the conveyor 10 by an angle, theta=60 deg., which is the angle for bottles to be naturally aligned. Then, the bottle aligning stopper 42 is transferred in the flow direction, i.e., to the downstream side, and the bottles 35 are set free. Then, the bottles 35, which have been lifted by a gripper 48, are changed from the staggered piling up alignment to a checkboard alignment by turning the alignment of the gripper 48 by 30 deg. from the staggered piling up pattern alignment, by a turning device in a grip block 49. After transferring to a box conveyor 7 side, the gripper 48 descends to supply bottles in a box 20.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an apparatus for packaging products such as bottles and cans into cassettes or boxes, or an apparatus for disposing and supplying products on other machines, tables, and tables. This invention can also be applied to an aligning device for plastic molded containers.

[Conventional technology]

A) Conventional technology has not been available for empty bottles (not filled with the contents of the bottle) when the material is light such as plastic.

B) Fruit bottles (if the contents are filled inside the bottle or if the bottle is made of glass or other material and can be expected to have some weight)
The prior art will be explained with reference to FIGS. 8, 9 and 10.

Reference numeral 1 denotes the main body frame of the cartoning machine, which consists of a pair of left and right frames. Reference numeral 2 denotes a grip head lifting device, which is attached to the frame 1 and is moved up and down by a drive device (not shown). 3 is a grip head horizontal movement device, and grip head lifting device 2
It is attached to the vehicle and horizontally moves in the forward and backward directions by a drive device (not shown). Reference numeral 4 denotes a grip block mounting base, which is mounted on the grip head horizontal movement device 3. Reference numeral 5 denotes a grip block, which is assembled to the grip block mounting base 4 and is used to hold and rearrange articles. A plurality of grippers 6 are attached to the grip block 5, grip an article, and move up and down. 7 is a box conveyor, which is attached to the frame l;
It is operated by a control device (not shown). A box guide 8 is made up of a pair of guide bars attached to the box conveyor 7. 9
is a lead up/down device which is disposed above the box conveyor 7 in correspondence with the grip block 5 and engages with the grip block 5 to move up and down. A bottle conveyor 10 is disposed perpendicular to the box conveyor 7 and is operated by a control device (not shown). A bottle guide 11 is made up of a set of guide plates attached to the bottle conveyor 10. Reference numeral 12 denotes a middle partition bottle guide, which is attached to the bottle container 10. A box or cassette for storing Kaha bottles. B is a bottle stopper, a plate that stops the bottle. 31 is a bottle conveyor drive motor. 34 is a conveyor chain. Aha bottle. 36 is a bottle sorting device which sorts bottles into each row. Reference numeral 37 indicates the bottle guide 1° on the entrance side.Next, a method of packing boxes using this conventional device will be explained.

(However, this only applies when the bottle is filled with contents or is slightly heavy, such as glass bottles, etc.; conventional machines do not allow for light items such as plastic bottles.) (1) Box guide 08 guides the user. 1 box conveyor 7
The assembled heads conveyed by are aligned below the tip raising and lowering device 9.

(2) At the same time, the bottle portion guided by the bottle guide 11 and the partitioned bottle guide 12 and conveyed by the bottle conveyor 10 stops against the bottle stopper 251C.

(3) A predetermined number of bottles 35 are collected in each arrangement by the bottle sorting device 36, gripped and lifted by the grits t6, moved down, and packed into the assembly head.

[Problem to be solved by the invention]

The conventional techniques described above have the following problems.

(1) When empty bottles (one screw bottle) are sorted, there are many bottles that fall over during conveyance by the device 36 and the bottle conveyor 10, and the conveyance capacity is low.

(2) It takes a long time to replace the bottle guide 11 and partitioned bottle guide 12 and change the model due to a change in bottle type.

(3) There are many complicated parts for changing bottle types, and the machine is expensive.

(4) Since the width of the bottle arrangement is fixed depending on the bottle size, a special machine is required because the bottle size cannot be changed.

[Means to solve the problem]

(1) Bottles stacked on the bottle conveyor are arranged diagonally to the direction of travel, making use of the frictional resistance that acts between the weight of the bottles and the conveyor chain, making it easier to line up the bottles naturally. Arrange the bottles.

A bottle guide drive device is provided to facilitate the formation of bale stacks and to replenish missing bottles when they occur.

(2) The bottles arranged in a stacked bale shape are gripped by a grip block, and then the gripper of the block is moved to a box packing turn to rearrange the bottles and pack them into a box.

[For production]

(1) Bottle stopper stops the bottles on the bottle conveyor in a state where they are arranged in a stacked bale (elf inclined arrangement).

(2) After the grits in the grip block grasp and lift one box of bottles, the grid is switched to the base arrangement (right-angled arrangement) and the bottles are packed into the box.

〔Example〕

In Figs. 1 to 7, 1 is the cartoning machine body frame, 2 is a grip head lifting device, 3 is a grip head horizontal movement device, 4 is a grip block mounting table, 7 is a box conveyor, 8 is a box guide, 9 is a 10 is a bottle conveyor, 3 is a bottle storage box or cassette, 31 is a bottle conveyor drive motor, U is a conveyor chain, 35 is a bottle, and the above members are related to the prior art and are shown in FIGS. 8 to 8. 10
They are the same as the members with the same reference numerals described in the figures.

39 is a bottle guide, and 1 is equipped with a bottle conveyor IOK.
A set of guides 040 is a bottle guide, and is a set of guides installed downstream of a bottle guide drive device 41, which will be described later. 41a
, 42b is a bottle guide drive device, which includes push plates 43, 44 that advance and retreat in a direction perpendicular to the bottle conveyance direction;
Cylinders 45 and 46 such as air cylinders that move 44 forward and backward
It moves back and forth within the range of stroke S to give vibration or movement to the bottles and arrange the bottles.

Reference numeral 42 denotes a bottle alignment stopper, which is installed at an angle C with respect to the direction in which the bottles travel, and aligns and stops the bottles in a staggered manner. When a cylinder 47 such as an air cylinder attached to the stopper 42 is driven by a control device (not shown), the stopper 42 reciprocates in the direction of bottle flow.

Next, the operation of this device will be explained.

(1) Bottle guide 39 and push plate 4 by bottle conveyor 10
3°44 (the distance between the push plates is set to the following dimension W), the bottle guided and carried by the bottle guide 40 hits the bottle alignment stopper 42 and stops.

(2) As shown in FIG. 5, the bottle alignment stopper 42 is inclined with respect to the traveling direction of the container 10 at an angle θ at which the bottles are naturally aligned.

(3) The width W of the bottle guide 40 is set in the following formula.

W = ((number of bottles arranged) x (bottle diameter) x sinθ)
10α Here, α is the margin dimension for absorbing the error in the bottle diameter.

(4) The arranged shape of the bottles as shown in Figure 1 will be referred to as "bale stacking".
I will call it.

(5) If this bale stacking pattern is simply allowed to flow on the conveyor 10 in its natural state, it will not necessarily be closely aligned as shown in Figure 1, but the arrangement will be partially disrupted, that is, the bale stacking pattern as shown in Figure 5. Pocket (like the part sandwiched between plates 43 and 44)
P may occur.

(6) To prevent this alignment collapse or the occurrence of pockets, K
, only at regular intervals K or when an abnormality occurs, the bottle guide drive device 41 is moved forward and backward by a stroke S in the same direction.

(7) The stroke S of this bottle guide drive device 41 is set by the following formula.

S=1 [((Bottle diameter
This is the margin dimension to absorb the error in the bottle diameter, and is 5 to 1.
Set with 0 dragons.

(Bottle diameter x number of bottles arranged) + β is a dimension that allows bottles on the supply side to enter the pocket generation area.

The bottle guide drive device 41 is operated to break up the blocking phenomenon that occurs between bottles and form bales as shown in FIG.

(8) After the bale stack is formed as shown in FIG. 1 in this way, the bottle conveyor drive motor 31 is stopped in order to eliminate line pressure.

(9) Next, move the bottle alignment stopper 42 in the flow direction, that is, to the downstream side, to free the bottle. (Situation indicated by the two-dot chain line in FIG. 1) αl Next, the gripper 48 for gripping the articles descends, grips and lifts the bottles stacked in bales as shown in FIG. At this time, the grippers 48 are maintained in the same arrangement as the bottles in the bale stack.

fiυ Next, the bottle is lifted by the gripper 48, and a rotating device in the grip block 49 (not shown) rotates and aligns the gripper guides from the bale stacking pattern arrangement shown in Fig. 2 to the arrangement shown in Fig. 3. Then, as shown in FIG. 4, the boxes are rearranged into a grid-like arrangement (orthogonal arrangement), and then moved to the box conveyor 7 side, and then lowered and neatly fed.

〔Effect of the invention〕

A conveyor that conveys multiple rows of cylindrical articles, an article alignment stopper that is arranged on the conveyor at an angle with respect to the direction of travel of the conveyor, and an article alignment lever that is arranged on both sides of the conveyor and stacks the cylindrical articles in bales. It consists of an article guide having an interval for arranging the articles, and an article gripping and transferring mechanism that grasps and lifts the articles arranged in a bale-like arrangement, converts these articles into a right-angled arrangement, transfers them, and packs them into a storage box at a predetermined position. This produces the following effects.

(1) With a simple device in which the bottle stopper is sloped and the bottle guide width is regulated, packing in a single box or feeding into a cassette can be done easily and at low cost.

(2) Since there is no longer a divider guide placed between the bottles, there is no need to change the shape of the divider guide when changing the bottle size, making it possible to change product types.

(3) When handling lightweight bottles, in the conventional device, there were many bottles that fell over, but in the present invention, bottles are handled in groups, so the number of bottles falls down is very small.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing a bottle alignment pattern in an embodiment of the article packing method and apparatus of the present invention, FIG. 2 is a pattern diagram of bottles gripped and lifted by the article gripping and transferring mechanism, and FIG. The pattern diagram in FIG. 2 is an explanatory diagram showing the state of rotational rearrangement, and FIG. 4 is the pattern diagram of packaging after rotational rearrangement in FIG. 3. Figure J5 is a plan view similar to Figure 1 showing the state in which pockets are present, and Figure 6 is a plan view similar to Figure 2 in Figure 5.
7 is an overall view of the device in FIG. 1, FIG. 8 is an overall view of the conventional device, and FIG. 9 is a Y-Y sectional view of FIG.
0 is a view taken along the X arrow in FIG. 2...Grip head lifting device 3...Grip head horizontal movement device 4...Grip block mounting base

Claims (2)

[Claims] (1) A conveyor that conveys multiple rows of cylindrical articles, an article alignment stopper arranged on the conveyor at an angle of 60 degrees with respect to the direction of travel of the conveyor, and article guides arranged on both sides of the conveyor. an article gripping and transferring mechanism that grips and transfers a group of articles on the conveyor; the article alignment stopper and the article guide arrange the articles on the conveyor in a bale stack; and the article gripping and transferring mechanism arranges the articles in a bale stack. A method for packing articles, which comprises grasping and lifting an array of articles, converting them into a right-angled array, transporting them, and packing them into a storage box at a predetermined position. (2) A conveyor that conveys multiple rows of cylindrical articles, an article alignment stopper that is arranged on the conveyor at an angle of 60 degrees with respect to the traveling direction of the conveyor, and an article alignment stopper that is arranged on both sides of the conveyor that carries the cylindrical articles. An article guide having intervals arranged in a bale-like manner, and an article gripping and transferring mechanism that grasps and lifts the articles arranged in a bale-like manner, converts these articles into a right-angled array, transfers them, and packs them into a storage box at a predetermined position. An article packaging device comprising: