CN105947369B - It is laminated grafting all paper tray - Google Patents

Abstract

The invention relates to a product in the paper packaging industry, specifically a stacked and plugged all-paper pallet used in a logistics system, including a pallet board (1), the middle of the pallet board (1) is a fourth plane IV, and the pallet board (1) (1) The third plane III, the second plane II, and the first plane I are symmetrically formed on both sides respectively through the symmetrical third crease c, the second crease b, and the first crease a; the fourth plane The IV is distributed with three columns of slots, and each column of slots is arranged with three rectangular slots (7); the side of the first plane I is correspondingly provided with three raised inserts (6). The invention has a reasonable design, fully relies on the structure of the full corrugated paper tray in the folding and plugging mode, without glue bonding, and utilizes the excellent performance of various aspects of the corrugated cardboard to improve the carrying capacity of the tray.

Description

Stacked full paper tray

technical field

The invention relates to products in the paper packaging industry, in particular to a stacked and plugged all-paper tray used in a logistics system.

Background technique

In recent years, due to the complexity of environmental and pollution issues, the concept of green packaging has attracted the attention of the entire international community. With the issuance of the "Notice on Printing and Distributing the Work Plan for Replacing Wood with Materials for Mechanical and Electrical Products Packaging" by seven ministries and commissions in 2009, a series of research activities around the development of paper packaging products have been carried out rapidly in scientific research institutions and packaging companies. The research and development of new paper packaging products made of wood and plastic packaging in packaging has developed rapidly, and many paper packaging companies have regarded it as a development hotspot in the future packaging market. The rapid development of corrugated cardboard and honeycomb cardboard has made it an environmentally friendly cardboard cushioning packaging material that gradually replaces foam pads, wooden boxes, and wooden pallets, which is in line with the development trend of international packaging industry material applications. Paper pallets are disposable pallets. At present, honeycomb cardboard pallets and corrugated cardboard pallets have been used in logistics systems in China. At present, most of the paper pallets in China are connected and fixed with glue, nails, etc., which to a certain extent cause trouble for the recycling of paper pallets. Therefore, the research on all-paper splicing trays is of great significance to the entire packaging industry.

Contents of the invention

The purpose of the present invention is to provide a new type of recyclable and reusable stacked plug-in all-paper tray.

The present invention is realized by adopting the following technical solutions:

A stacked and plugged all-paper pallet, including pallet decking, the middle of the pallet decking is a fourth plane , the two sides of the pallet plank respectively form a third plane symmetrically through the symmetrical third crease c, the second crease b, and the first crease a in sequence , the second plane , the first plane ; the fourth plane There are three rows of slots, and each row of slots is arranged with three rectangular slots; the first plane There are three protruding inserts on the sides; when the two sides of the pallet plank are folded along the first, second, and third creases in sequence, the first, second, and third planes on both sides form a symmetrical edge beam outer box, and first plane The three raised gussets fit right into the fourth plane corresponding three rectangular slots in the side column.

A deck liner is also included, the deck liner is attached to the fourth plane of the pallet deck and the third plane of symmetry ;The arrangement of the slots on the decking liner and the fourth plane same.

The side beam outer box is closely arranged with side beam inner linings, and the raised edges of all the side beam inner linings are sequentially arranged and inserted to fill the corresponding rectangular slots.

Also included is a middle stringer outer box, the raised insert of the middle stringer outer box being in contact with the fourth plane of the pallet decking The middle column of rectangular slots is plugged in.

The inner stringer linings are closely arranged in the outer box of the intermediate stringer, and the raised edges of all the stringer inner linings are sequentially arranged and inserted into the corresponding rectangular slots.

All parts are made of corrugated cardboard.

The above-mentioned all-paper pallet is a split-stacked and plug-in full-corrugated pallet structure. The plank and the stringer are designed separately. The plank and the stringer are both stacked structures, and the two are connected by plugging. While ensuring its performance, the feasibility of the processing technology is ensured. The side pressure strength of corrugated cardboard is used to bear a large load, and it has been verified by experiments that the bearing capacity is better than that of wooden pallets of similar specifications, and the cost is low.

The invention has a reasonable design, fully relies on the structure of the full corrugated paper tray in the folding and plugging mode, without glue bonding, utilizes the excellent performance of the corrugated cardboard in all aspects to improve the carrying capacity of the tray, and at the same time considers the processing technology, the structure of the corrugated paper tray is improved. The split design has good promotion and application value.

Description of drawings

Figure 1 shows a schematic diagram of the expansion of pallet decking.

Fig. 2 shows a schematic diagram of forming a pallet outer box after the pallet board is folded along the crease.

Figure 3 shows a schematic diagram of the expansion of the decking lining.

Fig. 4 shows a schematic diagram of the inner lining of the decking made of multi-layer corrugated cardboard.

Figure 5 shows a schematic view of the expansion of the middle stringer.

Fig. 6 shows a schematic diagram of the outer box of the middle stringer.

Figure 7 shows a schematic view of the stringer lining.

Figure 8 shows a schematic diagram of the bonding of the multi-layer stringer lining.

Fig. 9 shows a schematic diagram of the design and assembly process of a corrugated cardboard pallet.

In the figure, 1-pallet planking, 2-side beam outer box, 3-middle longitudinal beam outer box, 4-planking inner lining, 5-longeron inner lining, 6-raised edge, 7-rectangular slot.

detailed description

Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

A stacked and plugged full-paper pallet is composed of a main outer box structure and an internal support structure, and is formed by folding planks and plugging internal support components. Among them, the main outer box structural components are composed of corrugated cardboard-paper-shaped rectangular bearing panels and the outer surface of the longitudinal beams. The longitudinal beam support structure is composed of a series of vertically arranged rectangular panels with protruding plug-in structures. The details are as follows: All parts are made of corrugated cardboard, and the thickness of corrugated cardboard is 2mm.

Pallet decking outer box design

As shown in Figure 1, it includes a pallet decking 1, and the middle of the pallet decking 1 is a fourth plane , the two sides of the pallet decking 1 respectively form a third plane symmetrically through the symmetrical third crease c, the second crease b, and the first crease a in turn. , the second plane , the first plane ; the fourth plane There are three rows of slots distributed, each row of slots is arranged with three rectangular slots 7, and all nine rectangular slots are regularly arranged; the first plane Three raised inserts 6 are correspondingly arranged on the sides.

As shown in Figure 2, when the two sides of the pallet decking 1 are folded along the first, second, and third creases in turn, the first, second, and third planes on both sides form a symmetrical side beam outer box 2, and the first plane The three raised inserts 6 are just inserted into the fourth plane In the corresponding three rectangular slots 7 of the side columns.

The side beam outer box 2 is closely arranged with side beam inner linings 5 , and the raised inserting edges 6 of all the side beam inner linings 5 are sequentially arranged and inserted to fill the corresponding rectangular slots 7 .

During specific production, taking Fig. 1 as an example, the left and right sides in the figure are defined as long, and the up and down are defined as wide. The pallet decking 1 is 980mm wide and 1680mm long, wherein the fourth plane Length 1140mm, third plane Length 112mm (that is, the height of the outer box of the side beam), the second plane Length 60mm (that is, the width of the outer box of the side beam), the first plane Long 100mm; Then the specification of the side beam outer box 2 that forms symmetry by the first, second and third planes is a cuboid with a length of 980mm, a width of 60mm, and a height of 112mm.

the fourth plane The specification of the middle column slot on the top is 60mm in length and 100mm in width, the specification of the side column slot is 50mm in length and 100mm in width, and the shortest distance between the side column slot and the third crease is 10mm; the raised insert edge 6 100mm wide.

Plank Lining Design

As shown in Figures 3 and 4, it also includes a decking lining 4. When the decking lining is placed in the pallet decking outer box, the decking lining 4 is attached to the fourth plane of the pallet decking 1 and the third plane of symmetry ;The arrangement of the slots on the decking liner 4 is consistent with the fourth plane same.

The inner lining of pallet decking is composed of five layers of corrugated cardboard nested and superimposed. The two sides are folded down to form a part of the beam, and its strong edge pressure is used to ensure the carrying capacity of the pallet. The position of the groove on the plank lining panel just corresponds to the fourth plane of the plank outer box.

Since the length of the first plane in pallet decking is 100mm, and the third plane is 112mm, the difference of 12mm between the two is the sum of the thickness of the inner lining of the five-layer decking and the thickness of corrugated cardboard.

Middle stringer outer box design

Due to the limitations of processing equipment and technology, the outer box of the middle longitudinal beam is an independent unit, which is connected with the upper deck by a raised plug, as shown in Figures 5 and 6, and also includes the outer box 3 of the middle longitudinal beam. The raised edge 6 of the outer box 3 and the fourth plane of the pallet decking 1 The middle column rectangular slot 7 is plugged in.

Inside the middle stringer outer box 3, stringer liners 5 are closely arranged, and the raised edges 6 of all stringer liners 5 are sequentially arranged and inserted into the corresponding rectangular slots 7 .

Design of Stringer Lining

The pallet longitudinal beam is composed of a row of corrugated cardboard with protrusions arranged vertically. According to the packaging material science, the edge compressive strength of corrugated cardboard is greater than the flat compressive strength. While the longitudinal beam is connected to the plank, it can make up for the lack of strength of the plank that may be caused by the groove. The deployment and tandem arrangement of the stringer lining are shown in Figures 7 and 8.

The corrugated tray forming process is as follows:

(1) When forming, first fold the expanded pallet plan shown in Figure 1 into the pallet deck box shown in Figure 2 according to the creases;

(2) Fold the decking lining according to the creases in Figure 3 and nest them in order to form the decking lining combination shown in Figure 4;

(3) Nest the decking lining combination into the decking outer box, and place all the slots in alignment;

(4) Vertically arrange the stringer lining shown in Figure 7 into the stringer lining combination shown in Figure 8;

(5) Place the stringer combination lining shown in Figure 8 in the outer box on the end of the outer box of the pallet and in the outer box of the middle stringer (all the protrusions should be placed on it);

(6) After the assembly is completed, the three protrusions of the longitudinal beams at both ends and the middle longitudinal beams are seamlessly inserted into the slots on the decking surface to complete the final assembly.

Figure 9 shows the assembly flow chart of the all-paper pallet scheme 1.

Corrugated pallet cost and performance

Corrugated cardboard is a new type of green environmental protection material, which is low in price, high in strength and easy to recycle. First, compare the cost and load-bearing performance of corrugated pallets and wooden pallets.

The research material is E corrugated cardboard, and its market price is between 1.5~2.5 yuan/m ² . This time, medium E corrugated cardboard with a specification of 1500*1000mm is used, and the unit price is set at 1.7 yuan/m ² . First calculate its usable area as follows:

Plank area=1.7×1+1.36×1×5=8.5m ² ;

Stringer area=0.12×1×(23+28+23)+(0.06+0.12×2)×1=9.18m ² ;

Total area=8.5+9.18=17.68m ² , take 18m ² ;

Unit price=18×1.7=30.6 yuan/piece.

The market price of wooden pallets is generally 80-120 yuan per piece, and the price is much higher than that of paper pallets at 100 yuan. At the same time, the load-carrying performance of the two pallets was compared through experiments. The 1:2 model of the corrugated cardboard pallet of this design was tested for compressive strength, and it was not damaged when it was subjected to a heavy load of 1400kg, because the pallet is loaded by force through the contact area, and when its size is reduced by half, its contact area shrinks quadruples, so its load-carrying weight is reduced to a quarter of its original size. The pallet of its actual specification can bear the weight of more than 5600kg. The comparison results are shown in Table 1. The results show that under the same specifications, paper pallets are superior to wooden pallets in terms of load-bearing performance, but their manufacturing cost is a quarter of that of wooden pallets. The price/performance ratio of corrugated pallets is relatively obvious. At the same time, in terms of environmental protection and recycling, corrugated pallets have very strong advantages.

Table 1 Comparison results of corrugated and wooden pallets

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than limit them. Although detailed descriptions have been made with reference to the embodiments of the present invention, those of ordinary skill in the art should understand that the technical solutions of the present invention are modified Or equivalent replacements do not deviate from the spirit and scope of the technical solutions of the present invention, and all of them should be included in the protection scope of the claims of the present invention.

Claims (4)

1. A stacked and plugged all-paper pallet, characterized in that it includes a pallet decking (1), and the middle of the pallet decking (1) is a fourth plane , the two sides of the pallet decking (1) form a third plane symmetrically through the symmetrical third crease c, the second crease b, and the first crease a in turn. , the second plane , the first plane ; the fourth plane There are three rows of slots, and each row of slots is arranged with three rectangular slots (7); the first plane There are three protruding inserts (6) corresponding to the sides; when the two sides of the pallet decking (1) are folded along the first, second, and third creases in turn, the first, second, and third planes on both sides form a symmetrical Side beam outer box (2), and the first plane The three raised inserts (6) of the in the corresponding three rectangular slots (7) of the side columns; Also includes a decking liner (4) attached to the fourth plane of the pallet decking (1) and the third plane of symmetry ;The arrangement of the slots on the decking lining (4) corresponds to the fourth plane same; The side beam outer box (2) is closely arranged with stringer liners (5), and the raised inserts (6) of all stringer liners (5) are sequentially arranged and inserted into the corresponding rectangular slots ( 7); It also includes the middle stringer outer box (3), the raised insert (6) of the middle stringer outer box (3) and the fourth plane of the pallet deck (1) The middle row of rectangular slots (7) plug in; The inner stringer lining (5) is closely arranged in the middle stringer outer box (3), and the raised edges (6) of all the stringer linings (5) are sequentially arranged and inserted into the corresponding rectangular slots (7); All parts are made of corrugated cardboard. 2. The stacked and plugged all-paper pallet according to claim 1, characterized in that: the board lining (4) is composed of five layers of corrugated cardboard. 3. The stacked and plugged all-paper pallet according to claim 1 or 2, characterized in that: the pallet deck (1) is 980mm wide and 1680mm long, and the fourth plane Length 1140mm, third plane 112mm long, second plane long 60mm, the first plane 100mm long; the fourth plane The specification of the middle column slot on the board is 60mm in length and 100mm in width, the specification of the side column slot is 50mm in length and 100mm in width, and the shortest distance between the side column slot and the third crease is 10mm; the raised insert ( 6) 100mm wide. 4. The stacked and plugged all-paper pallet according to claim 3, wherein the thickness of the corrugated cardboard is 2 mm.