JPH085031B2 - Cardboard box cutting equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corrugated box cutting device, and more particularly to a corrugated cardboard box cutting device that cuts and removes a corner portion of a corrugated cardboard box to open it.

2. Description of the Related Art Cardboard boxes are light and strong, convenient to fold, assemble, open, etc., and can save packaging and transportation costs. It is widely used for packing and transporting various products. In such a cardboard box packed with a plurality of products, it is necessary to manually open the cardboard box to take out the products and take out the necessary amount or the total amount of the products.

In order to remove the product from the cardboard box, to open the cardboard box packed with the product without damaging the product, consider the thickness of the cardboard and use a tool like a cutter to join the cardboard box joints or any Cutting the corrugated cardboard surface of the corrugated board, cutting with a guide that leaves the blade edge of the corrugated board by the thickness of the corrugated board, inflating the corrugated cardboard box with some means and cutting with the blade, manually connecting the corrugated board box There are methods such as peeling.

However, these methods require skill and time, and when cutting a cardboard box with a blade, there is a risk of injury or damage to the product.

Therefore, there has already been proposed a corrugated board box cutting device equipped with a cutter so that the corrugated board box is placed on a conveyor and moved, and the upper edge of the corrugated board box or the vicinity thereof is cut along with the movement. (See Japanese Laid-Open Patent Publication No. 63-11297).

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, conventionally, the cutting device for a corrugated cardboard box that has been already proposed cuts and removes four corners of the upper edge of the corrugated cardboard box. It has a mechanism, an upper regulating plate, and an elevating mechanism for raising and lowering the both-side regulating conveyor, and since the device is complicated and large in size, it has not become popular.

Therefore, the present invention has been made to improve the drawbacks of such a conventional corrugated box cutting device,
It is an object of the present invention to provide a cardboard box cutting device that can be applied to large and small cardboard boxes and has a simple structure and can be downsized.

Means for Solving the Problems In order to achieve the above object, the present invention provides a fixed base having a flat plane, and a pair of blades mounted on the fixed base such that mutual intervals and mounting angles are adjustable. A pair of chains arranged at a distance above the fixed base, a pusher mounted at a predetermined distance so as to connect these chains, and a position provided so as not to interfere with the transition track of the pusher. It consists of a pair of side guides,
When the cardboard box placed on the flat surface of the fixed table is guided by the side guide and pushed forward by the pusher,
The corners of both side edges of the bottom are cut by the cutting edge of a cutting tool protruding from the plane of the fixing base.

Action: A fixed base having a flat plane, a pair of blades mounted on the fixed base so that the mutual spacing and mounting angle can be adjusted, and the fixed base is spaced above the fixed base and driven synchronously. A pair of chains, and a pusher attached at a predetermined interval so as to connect these chains,
Since it is composed of a pair of side guides provided at a position where it does not interfere with the track of this pusher, it can be used for large and small corrugated cardboard boxes only by adjusting the mutual interval of the blades and its mounting angle. Since it does not require an elevating mechanism or an upper regulation plate to accommodate large and small cardboard boxes, that is, cardboard boxes of different heights like the ones,
The structure is simple and can be miniaturized.

Example Hereinafter, an example of the present invention will be described with reference to a corrugated box cutting device shown in the drawings. 1 to 4,
The cutting device 30 includes a fixed base 32 having a flat plane, a pair of rotary blades 31, 31 attached to the fixed 32 so that the mutual spacing and the mounting angle can be adjusted, and above the fixed base 32 and at both side ends. , A pair of chains 3 spaced apart from each other
4,34, a motor 35 that is a drive device for driving the chains 34,34 in synchronization with each other, and the chains 34,34
A number of pushers 33 that connect the
And a pair of side guides 37, 37 provided inside the chains 34, 34 so as not to interfere with the transition path of the pusher and having adjustable intervals.
The side guide may be provided at a position that does not interfere with the transition trajectory of the pusher 33, and may be above the chain 34, for example. As shown in the figure, a pusher 33 for pushing the cardboard box 2 is provided so as to connect a pair of spaced chains 34, and the pusher 33 is driven by a driving device 35 such as an electric motor. At 33, the cardboard box 2 is pushed forward, and the cardboard box 2 pushed forward on the roller 36 is pushed forward while being guided on the fixed base 32 by the side surface guides 37, and when passing over the rotary blade 31, Cardboard box 2
Both side edges or corners of the bottom portion of the blade are cut by the blade edge of the rotary blade 31 protruding from the opening 32 'of the fixed base 32.

The rotary blade 31 is attached to the lateral end of the electric motor 38,
As shown in the figure, the rotary blade 31 is installed at an appropriate angle so that the blade edge can cut the side edge of the corrugated cardboard box 2, and the mounting angle and the installation interval of the rotary blade 31 can be adjusted appropriately. It is attached to the fixed base 32. When adjusting the mutual distance between the rotary blades 31, 31, it is preferable that the distance between the side surface guides 37, 37 is adjusted in conjunction with each other.

The cutting device 30 thus configured is suitable for automatically cutting two opposite corners of the bottom surface of the corrugated board box 2. For example, the corrugated board box 2 is supplied onto the roller 36 and attached to the chain 34. The pusher 33 pushed to the right in FIG. 1 starts the movement, slides on the fixed base 32, and comes over the rotary knife 31 rotated by the electric motor 38 to reach the rotary knife.
The edge of the corner 4 of the corrugated cardboard box 2 is cut by the rotary blade 31 when passing through the edge of 31.

5 to 7 show a cutting device 40 showing a second embodiment of the present invention, which automatically cuts the corners 4 of the four sides of the bottom surface of the corrugated cardboard box 2. Thus, the cutting device is suitable when the commodity on the bottom does not collapse even if the top of the cut cardboard box 2 is removed. This cutting device 40
In addition to the same cutting mechanism 30 'of the cutting device 30 of the previous embodiment, a cutting mechanism 4 for cutting the remaining two corners of the cardboard box 2 is used.
It has 0 '. That is, the cutting mechanism 40 'provided in front of the cutting mechanism 30' includes a stationary table 41 that is provided adjacent to the fixed table 32 of the cutting mechanism 30 'and that transfers the breaking ball box 2.
The movable table 42 is capable of reciprocating in the lateral direction, and a pair of rotary blades 43 provided on the movable table 42. The stationary table 41 to which the cardboard box 2 is transferred is narrower than the front and rear widths of the cardboard box 2 and is made of a plate member having a size such that the front and rear edges of the bottom of the cardboard box 2 to be cut out are protruded. A plurality of vacuum pads 44 are provided along the center, that is, the center in the longitudinal direction, and are adapted to engage with the bottom of the corrugated cardboard box 2 through the opening of the stationary table 41 to firmly adsorb and hold the corrugated cardboard box 2. There is. Further, a vertically movable stopper 45 is provided in front of the stationary table 41 in the conveying direction in order to correctly determine the front-back position of the cardboard box 2. In order to cut the front and rear edges of the bottom of the cardboard box 2, the shaft ends of a pair of electric motors 47 mounted on the movable base 42 at an appropriate angle so as to be capable of reciprocating on a fixed bed 46 which is elongated in the lateral direction. A rotary blade 43 is provided, and the front and rear side edges of the bottom of the cardboard box 2 are cut by the blade edge of the rotary blade 43 on the moving table 42 that reciprocates on the bed 46. Further, it is preferable that the intervals between the cutting edges of the rotary blades 43 and the mounting angles are provided so that they can be adjusted appropriately. Further, a pair of hooks 49 supported by the ends of the support columns 48 are provided on one side of the movable table 42 of the blade mechanism 40 'so that the tips thereof slightly project from the slits 51 cut in the stationary table 41. As the movable table 42 moves, it moves along the slit 51, returns to the initial position, and when returning, the tip of the hook 49 engages with the cut bottom portion of the corrugated cardboard box 2 to cause the bottom portion to move. It is designed to move while pushing the part and eliminate it. Also,
By combining the cutting mechanism 40 'with a 90 ° rotating mechanism and a cutting interval adjusting mechanism, it is possible to cut the bottom four sides of the cardboard box.

EFFECTS OF THE INVENTION According to the present invention, when the cardboard box placed on the flat surface of the fixed base is guided by the pair of side guides and is pushed forward by the pusher, the angles of both side edges of the bottom part of the fixed base are fixed. Since it is reliably cut by the blade edge of the blade protruding from the plane, it can be adapted to large and small cardboard boxes simply by adjusting the mutual spacing of the blades, and requires a blade lifting mechanism compared to the conventional one. Therefore, the structure of the device can be simplified and downsized.

[Brief description of drawings]

1 is a side view of a cutting device according to an embodiment of the present invention, FIG. 2 is a plan view of the cutting device of FIG. 1, FIG. 3 is an end view of the cutting device of FIG. 1, and FIG. 1 is a partially enlarged end view of the cutting device, FIG. 5 is a side view of the cutting device showing a second embodiment of the present invention, and FIG. 6 is a plan view of the cutting device of FIG.
The figure is an end view of the cutting device of FIG. In the figure, 2: Cardboard box, 4: Corner, 30,40: Cutting device, 30 ', 40': Cutting mechanism, 31,43: Blade, 32: Fixing stand, 33: Pusher, 34: Chain, 35: Drive device, 36: roller, 37: side guide, 41: stationary table, 42: moving table, 45: stopper, 46: bed, 47: electric motor, 48: strut, 49: hook.

Front page continuation (72) Inventor Nobuyuki Okada 8-19-20 Higashisuna, Koto-ku, Tokyo Toyo Kanetsu Co., Ltd. (72) Inventor Makoto Imazawa 8-19-20 Higashisuna, Koto-ku, Tokyo Toyo Kanecets Co., Ltd. (72) Inventor Osamu Takasaki 8-19-20 Higashisuna, Koto-ku, Tokyo Toyo Kanetsu Co., Ltd. (72) Inventor Junji Furukawa 8-19-20 Higashisuna, Koto-ku, Tokyo Toyo Kanetsu Co., Ltd. (56) References Japanese Patent Laid-Open No. 63-11297 (JP, A)

Claims (1)

[Claims] 1. A fixed base having a flat plane, a pair of blades mounted on the fixed base such that a mutual space and a mounting angle are adjustable, and a fixed space provided above the fixed base.
From a pair of chains driven in synchronism, a pusher attached at a predetermined interval so as to connect these chains, and a pair of side guides provided at a position that does not interfere with the transition trajectory of the pusher. When the cardboard box placed on the flat surface of the fixed table is guided by the side guides and pushed forward by the pusher, the corners of both side edges of the bottom are cut by the blade tips of the blades protruding from the flat surface of the fixed table. A cardboard box cutting device characterized in that