CN103171809A - Automatic bottom-sealing type corrugated case - Google Patents

Abstract

An automatic bottom-sealing corrugated box, which mainly includes a square box body composed of side panels, bottom panels and cover panels; the cover panel is composed of a first cover panel and a second cover panel; The first side plate and the third side plate on one set of opposite sides of the bottom plate, the second side plate and the fourth side plate fixedly connected on the other set of opposite sides of the bottom plate; the first side plate and the third side plate are provided with two mutually symmetrical indentation lines at an angle of 45 degrees with the bottom edge of the side plate; The first flap is fixedly connected; the second side plate and the fourth side plate are respectively connected with the first cover plate and the second cover plate; the respective two opposite sides of the first cover plate and the second cover plate There are second flaps fixedly connected to the sides; the beneficial effect of the present invention is that the structure is simple and the design is reasonable, and the cover plate, the bottom plate and the side plate are integrally formed, and the sealing is very smooth and the shape is beautiful, which is convenient for stacking and transportation ; The first flap, the second flap and the side panels constitute a double-sided wall structure, which greatly improves the compressive strength of the box and has high practicability.

Description

An automatic bottom-sealing corrugated box

technical field

The invention relates to an automatic bottom-locking corrugated box, which belongs to the technical field of packaging.

Background technique

Cartons are widely used in daily life and production, especially 0201 corrugated cartons are the most widely used packaging products; in order to improve the compressive strength, moisture-proof and moisture-proof performance, and structural modeling of cartons, people have carried out long-term exploration. And created a series of functional cartons; the 0201 type corrugated cartons that are common in the market at present, the cover and the bottom are composed of four pieces of cardboard, as shown in Figure 1, due to the influence of the thickness of the cardboard, when the carton is formed, the carton There will be an extra layer of cardboard thickness on the upper and lower surfaces, and there will be corresponding gaps at the combined position, making the surface uneven; and after repeated use, the cover and bottom plates will bend, warp, etc. The strength decreases, which affects the stacking and transportation of cartons; in addition, the side panels of 0201 cartons are usually a layer of corrugated cardboard, and their compressive strength is limited. the

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art and provide an automatic bottom-sealing corrugated box with reasonable design, simple structure and strong compressive strength.

The purpose of the present invention is achieved through the following technical solutions: it mainly includes a square box body composed of side plates, bottom plates and cover plates; the cover plate is composed of a first cover plate and a second cover plate; the side plate It consists of a first side plate and a third side plate fixed on one set of opposite sides of the bottom plate, a second side plate and a fourth side plate fixed on another set of opposite sides of the bottom plate; the Both the first side plate and the third side plate are provided with two mutually symmetrical indentation lines forming an angle of 45 degrees with the bottom edge of the side plate; The first flaps are fixedly connected to the sides of the strips; the second side panel and the fourth side panel are respectively connected to the first cover panel and the second cover panel; the respective first cover panel and the second cover panel Second flaps are fixedly connected to the two opposite sides.

There are four first flaps, and the width of each first flap is larger than half of the width of the box body and smaller than the width of the box body.

There are four second flaps, and the height of each second flap is equal to the height of the box.

The lengths of the first cover plate and the second cover plate are equal to half of the length of the box body.

The beneficial effects of the present invention are: its structure is simple, the design is reasonable, the cover plate, the bottom plate and the side plate are integrally formed, the seal is very smooth, the shape is beautiful, and it is convenient for stacking and transportation; the indentation line on the side plate makes the whole box The body can be folded in a flat shape; the first flap, the second flap and the side panels constitute a double-side wall structure, which greatly improves the compressive strength of the box and has high practicability.

Description of drawings

Fig. 1 is the structural representation of existing 0201 type carton.

Fig. 2 is a schematic diagram of the overall structure of the present invention.

Fig. 3 is a plane development view of the present invention.

Fig. 4 is a structural schematic diagram of the present invention.

Fig. 5 is another structural schematic diagram of the present invention.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings: as shown in Figures 2, 3, and 4, it is made by bending a piece of cardboard through the creases pressed on it, mainly including side plates 1, bottom plates 2 A square box formed with a cover plate 3; the cover plate 3 is composed of a first cover plate 31 and a second cover plate 32; A side plate 11 and a third side plate 13, a second side plate 12 and a fourth side plate 14 fixedly connected to another set of opposite sides of the bottom plate 2 are formed; the first side plate 11 and the third side plate There are two mutually symmetrical creasing lines 15 at an angle of 45 degrees to the bottom edge of the side panels on each of the panels 13. The creasing lines 15 are inner folding lines. Attach the bottom plate 2 to achieve the effect of flat folding, which facilitates the molding of the entire box, as shown in Figure 5; the first side plate 11 and the third side plate 13 are fixed on the two opposite sides respectively. There is a first flap 4; the second side plate 12 and the fourth side plate 14 are respectively connected to the first cover plate 31 and the second cover plate 32; the respective first cover plate 31 and the second cover plate 32 The second flaps 5 are fixedly connected to the two opposite sides.

The first flap 4 is four pieces, including the first flap one 41, the first flap two 42, the first flap three 43, and the first flap four 44, and the width of each first flap is greater than Half of the width of the box is less than the width of the box; since the width of the first flap is between half the width of the box and the width of the box, when the indentation on the side plate is bent, the first side plate 11, The third side plate 13 is bent, and the first flaps on both sides are in contact with each other, that is, the first flap one 41 and the first flap four 44, the first flap two 42 and the first flap three 43 are in contact, Adhesive is attached on the contact surface 45, so that the first flap one 41 and the first flap four 44, the first flap two 42 and the first flap three 43 are bonded and fixed to form the surrounding of the box body. side walls; as shown in Figure 4.

Described second flap 5 is four pieces, comprises second flap one 51, second flap two 52, second flap three 53, second flap four 54, and the height of every second flap is equal to The height of the box; in the box forming process, bend the second side plate 12 and the fourth side plate 14, and simultaneously bend the first cover plate 31 and the second cover plate 32 thereon, the second flap Sheet one 51, the second flap two 52, the second flap three 53, and the second flap four 54 all enter the inside of the box and are close to the first side plate 11 and the third side plate 13; It is higher than the same height as the box body, so the whole box body forms a double-side wall structure, that is, the outer side wall mainly composed of the first side plate 11, the second side plate 12, the third side plate 13 and the fourth side plate , and the inner side wall mainly composed of the first flap 4 and the second flap 5 greatly improves the compressive strength of the entire box body.

The lengths of the first cover plate 31 and the second cover plate 32 are equal to half of the length of the box body.

Since the cover plate 3, the bottom plate 2 and the side plate 1 are all formed on a piece of corrugated cardboard, after the box body is formed, the joint surface of the cover plate 3 and the side plate 1, and the joint surface of the bottom plate 2 and the side plate 1 are all very good. After the box is formed, you only need to seal the cover with tape or other adhesives and it can be used.

Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Any changes, additions or substitutions made by those skilled in the art within the scope of the present invention shall all belong to the scope of the present invention. protected range.

Claims (4)

1. an automatic bottom formula corrugated case, mainly comprise the square box that is made of side plate, base plate and cover plate; Described cover plate is made of the first cover plate and the second cover plate; It is characterized in that: described side plate is made of the first side plate and the 3rd side plate on the one group of relative edge who is connected in described base plate, another group the second side plate and the 4th side plate on the relative edge of being connected in described base plate; Be provided with two indentation lines symmetrical, become miter angle with the side plate base on described the first side plate and the 3rd side plate; All be fixed with the first flap sheet on relative two sides separately of described the first side plate and the 3rd side plate; Described the second side plate and the 4th side plate respectively with the first cover plate be connected cover plate and be connected; All be fixed with the second flap sheet on relative two sides separately of described the first cover plate and the second cover plate.

2. automatic bottom formula corrugated case according to claim 1, it is characterized in that: described the first flap sheet is four, and the width of every the first flap sheet is greater than half of casing width, less than the casing width.

3. automatic bottom formula corrugated case according to claim 1, it is characterized in that: described the second flap sheet is four, and the height of every the second flap sheet equals the height of casing.

4. automatic bottom formula corrugated case according to claim 1 is characterized in that: described the first cover plate and the second cover plate equal in length is equal to half of casing length.

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