CN117588472A

CN117588472A - Pallet box and manufacturing process thereof

Info

Publication number: CN117588472A
Application number: CN202311561051.7A
Authority: CN
Inventors: 王文博; 倪建生; 孙士国; 鲁亮
Original assignee: Cimc Carrier Technology Co ltd; China International Marine Containers Group Co Ltd; Dalian CIMC Logistics Equipment Co Ltd
Current assignee: Cimc Carrier Technology Co ltd; China International Marine Containers Group Co Ltd; Dalian CIMC Logistics Equipment Co Ltd
Priority date: 2023-11-21
Filing date: 2023-11-21
Publication date: 2024-02-23

Abstract

The invention provides a pallet box and a manufacturing process thereof, wherein the pallet box comprises: frame and sheet, comprising the steps of: the frame and the thin plate are both provided with corrosion-resistant layers; opposite bonding areas are arranged on the corrosion-resistant layers of the frame and the thin plate, and the bonding areas are subjected to surface treatment so as to improve the surface roughness of the bonding areas; uniformly gluing the bonding area to form a glue layer between the frame and the sheet; applying compaction pressure on the frame and the thin plate, and drying and curing the adhesive layer between the frame and the thin plate, so that the frame and the thin plate are tightly adhered; and after the compaction and curing treatment is completed, removing the compaction pressure, and taking out the frame and the sheet which are connected and formed after curing. Because the frame is adhered to the thin plate, the frame and the thin plate can form a corrosion-resistant layer, so that the corrosion-resistant layer is prevented from being damaged in the modes of welding, riveting and the like, the structural strength of the tray box is ensured, and the service life of the tray box is prolonged.

Description

Pallet box and manufacturing process thereof

Technical Field

The invention relates to the technical field of logistics transportation, in particular to a pallet box and a manufacturing process thereof.

Background

In the field of logistics transportation, metal pallet boxes are commonly used as containers for shipping goods for the transportation of the goods. The metal pallet box can be recycled for a plurality of times within a certain period of time and generally comprises a chassis, two opposite end walls and two opposite side walls; the chassis, the end walls and the side walls are of a frame and sheet type structure, and the frame and the sheet are firmly connected together in a welding and riveting mode.

In the actual use process, the surfaces of the frame and the thin plate are provided with corrosion-resistant layers so as to ensure the normal use of the metal tray box and the service life of the metal tray box.

A manufacturing process is as follows: after the frame is welded with the sheet, the corrosion-resistant layer is formed by means of electro-galvanizing, paint spraying, plastic spraying or hot-dip galvanizing. At this time, the corrosion resistance of the corrosion-resistant layer formed by electrogalvanizing is poor; the corrosion-resistant layer formed by spray painting and spray molding is easy to cause the corrosion-resistant layer to break and fall off after being knocked in the use process; when forming a corrosion-resistant layer, hot dip zinc is easy to deform due to expansion and contraction, has poor appearance, can lead to tearing of welding spots when deformed seriously, is scrapped, and cannot be used for thin plates with the thickness of less than 1 mm.

The other manufacturing process is as follows: after the frame and the thin plate are formed into a corrosion-resistant layer by means of electro-galvanizing or hot-dip galvanizing, the frame and the thin plate are welded and connected. At this time, welding high temperature and welding slag splashing and the like can burn out the corrosion-resistant layer, the corrosion resistance is affected, the burning-out area must be painted and repaired, a large amount of volatile organic compounds are discharged in the process of painting and repairing, meanwhile, hazardous wastes such as paint slag, paint barrels, waste paint and the like are produced, the environment is polluted, the repairing paint is easy to fall off after long-time use, and the goods in storage and transportation are polluted.

In addition, after the frame and the thin plate form the corrosion-resistant layer, when the frame and the thin plate are riveted, the corrosion-resistant layer can be damaged in the rivet hole drilling process, and the repair can not be carried out. And in the working conditions of outward bulge of loading, jolt transportation and the like, the thin plate is easy to tear under the action of stress at the rivet hole, and the rivet is easy to loose and fall off, so that the riveting reliability is reduced, and the service life of the tray box is shortened.

Therefore, there is a lack of a pallet box on the market which is capable of not affecting the corrosion resistance of the corrosion-resistant layer after the frame is connected with the thin plate, not generating impurities and pollution, and has high structural strength.

Disclosure of Invention

The purpose of the present application is to provide a pallet box which has high structural strength and which can prevent the corrosion resistance of a corrosion-resistant layer from being affected when a frame is connected to a thin plate, and a process for manufacturing the pallet box.

In order to solve the technical problems, the application adopts the following technical scheme:

according to one aspect of the present application, there is provided a manufacturing process of a tray box including: frame and sheet, comprising the steps of: s1, forming corrosion-resistant layers on the frame and the thin plate; s2, opposite bonding areas are arranged on the frame and the corrosion-resistant layer of the thin plate, and surface treatment is carried out on the bonding areas so as to improve the surface roughness of the bonding areas; s3, uniformly gluing the bonding area to form a glue layer between the frame and the sheet; s4, applying compaction pressure on the frame and the thin plate, and drying and curing the adhesive layer between the frame and the thin plate, so that the frame and the thin plate are tightly adhered; and S5, after the compaction and curing treatment is completed, removing the compaction pressure, and taking out the frame and the sheet which are connected and formed after curing.

In some embodiments, in step S4, further comprising step S41, applying 5N/cm to the frame and the sheet ² ～30N/cm ² And the frame and the thin plate are dried at a temperature of 10 ℃ to 80 DEG CAnd curing the adhesive layer within a certain degree.

In some embodiments, in step S2, the method further includes step S21, performing surface treatment on the bonding area by using laser, plasma or a grinding wheel, so as to remove oxide scale and impurities on the bonding area and improve the surface roughness of the bonding area.

In some embodiments, in step S1, step S11 is further included, where the frame and the sheet are hot dip, electroplated, painted or spray-molded to form the corrosion-resistant layer.

The tray box is manufactured by the manufacturing process, and comprises a frame and a thin plate, wherein the corrosion-resistant layers are arranged on the outer sides of the frame and the thin plate, a thin plate bonding area is arranged on the corrosion-resistant layer on the periphery side of the thin plate towards one side surface of the frame, a frame bonding area is arranged on the corrosion-resistant layer on the frame corresponding to the thin plate bonding area, and the roughness of the thin plate bonding area and the roughness of the frame bonding area are higher than those of other parts of the corrosion-resistant layer; an adhesive layer is arranged between the sheet bonding area and the frame bonding area so as to bond the sheet and the frame.

In some embodiments, the corrosion resistant layer is a hot dip zinc coating, a galvanic coating, a hot dip aluminum zinc coating, a hot dip zinc aluminum magnesium coating, a paint coating, or a spray powder coating.

In some embodiments, further comprising: the device comprises a chassis, two end walls and two side walls, wherein the two end walls are oppositely arranged, the two side walls are oppositely arranged, the end walls are connected with the adjacent side walls, and the two end walls and the two side walls are arranged on the chassis to form a storage area in a surrounding manner; wherein the chassis, the end walls and the side walls are all formed by bonding the frame and the sheet.

In some embodiments, the side wall and the end wall are snap-fit connected to the chassis to separate the side wall, the end wall and the chassis; or, the side wall and the end wall are rotatably connected to the chassis so that the side wall and the end wall can be folded and placed on the chassis.

In some embodiments, a detachable structure is provided at an end of the side wall remote from the chassis, the detachable structure being detachably connected to an adjacent end wall so that the chassis, end wall and side wall can enclose to form the storage area.

In some embodiments, a plurality of reinforcing ribs are disposed in the frame, the reinforcing ribs are connected to two opposite sides of the frame, and the reinforcing ribs can abut against the thin plate.

According to the technical scheme, the application has at least the following advantages and positive effects:

in the application, the outer sides of the frame and the thin plate are provided with the corrosion-resistant layer, and the corresponding areas of the frame and the thin plate are provided with the bonding areas oppositely, so that the frame and the thin plate are glued and bonded in the bonding areas. And applying a pressing pressure to the bonded frame and the sheet to tightly bond the frame and the sheet. And the frame and the thin plate are dried and solidified while being pressurized. Finally, after the drying and curing are finished, the pressing pressure is removed, and the bonded frames and sheets are taken out so as to facilitate the assembly of the subsequent pallet box. The tray box manufactured by the method can avoid the damage to the corrosion-resistant layer by welding, riveting and other modes after the frame and the thin plate form the corrosion-resistant layer, avoid producing impurities and pollution, ensure the structural strength of the tray box and prolong the service life of the tray box.

Drawings

Fig. 1 is a schematic view of the structure of the pallet box of the present invention.

Fig. 2 is an enlarged view of the structure at a in fig. 1.

Fig. 3 is a schematic view of the structure of the pallet box according to the present invention when stacked after being disassembled.

Fig. 4 is a top view of the chassis of the pallet magazine of the present invention.

Fig. 5 is a schematic view of the chassis of the present invention with the sheet removed.

Fig. 6 is a schematic view of the structure of the sheet of the chassis of the present invention.

Fig. 7 is a schematic view of the structure of the end plate of the present invention.

Fig. 8 is a schematic structural view of a side plate of the present invention.

Fig. 9 is a flow chart of a manufacturing process of the pallet box of the present invention.

Fig. 10 is a schematic view of step S11 of the manufacturing process of the tray box of the present invention.

Fig. 11 is a schematic view of step S21 of the manufacturing process of the tray box of the present invention.

Fig. 12 is a schematic view of step S41 of the manufacturing process of the tray box of the present invention.

The reference numerals are explained as follows:

100. a chassis; 110. a support frame; 111. a support leg; 112. a reinforcing plate; 113. a forklift space; 200. an end wall; 211. a bolt clamping hole; 300. a sidewall; 310. a detachable structure; 311. a limit seat; 312. rotating the bolt; 313. a clamping block; 314. a handle; 315. a limiting piece; 410. a frame; 411. an adhesive plate; 412. a frame bonding region; 413. reinforcing ribs; 420. a thin plate; 421. and a sheet bonding area.

Detailed Description

Exemplary embodiments that embody features and advantages of the present application are described in detail in the following description. It will be understood that the present application is capable of various modifications in various embodiments, all without departing from the scope of the present application, and that the description and illustrations herein are intended to be by way of illustration only and not to be limiting.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the related art, the tray box generally includes a chassis, two side walls and two end walls, where the two side walls and the two end walls are disposed on the chassis and enclose with the chassis to form a storage area.

Referring to fig. 1, for convenience of reference and understanding, the present application refers to a state in which the pallet box is placed on the work floor, a direction of the pallet box with respect to the work floor is hereinafter upper, and a direction away from the upper is hereinafter lower.

Fig. 2 is an enlarged view of the structure at a in fig. 1. Fig. 3 is a schematic view of the structure of the pallet box according to the present invention when stacked after being disassembled. Fig. 4 is a top view of the chassis 100 of the pallet magazine of the present invention. Fig. 5 is a schematic view of the chassis 100 of the present invention with the sheet 420 removed. Fig. 6 is a schematic view of the structure of the sheet 420 of the chassis 100 of the present invention.

Referring to fig. 1 to 6, the present application provides a pallet box for accommodating and transporting goods. The pallet box comprises a chassis 100, two end walls 200 and two side walls 300, wherein the chassis 100 is used for supporting cargoes, the two end walls 200 are oppositely arranged, the two side walls 300 are oppositely arranged, and the end walls 200 are connected with the adjacent side walls 300. Both end walls 200 and both side walls 300 are disposed on the chassis 100 to enclose a storage area. Wherein the chassis 100, the end wall 200 and the side wall 300 are all formed by bonding the frame 410 and the sheet 420.

Fig. 7 is a schematic view of the structure of the end wall 200 of the present invention. Fig. 8 is a schematic view of the structure of the sidewall 300 of the present invention.

Referring to fig. 1, 7 and 8, in some embodiments, the end walls 200 and the side walls 300 are detachably connected to the chassis 100. When the pallet box is used for carrying goods, the goods are accommodated in the accommodating area, the chassis 100 is used for supporting the goods, and the two side walls 300 and the two end walls 200 are used for limiting and protecting the goods.

In some embodiments, the side walls 300 and end walls 200 are rotatably coupled to the chassis 100 such that the side walls 300, 200 can rotate about the chassis 100 to be stacked on the chassis 100 when the pallet is not in use. The tray box can reduce the occupied space of the tray box, and is convenient for storing and transporting a plurality of tray boxes.

In other embodiments, the side wall 300 and the end wall 200 are connected to the chassis 100 in a snap fit manner, and when the pallet box is stopped, the side wall 300 and the end wall 200 can be separated from the chassis 100, so that the side wall 300 and the end wall 200 can be stacked on the chassis 100, and transportation of the pallet box is facilitated. The separated side walls 300, end walls 200, and chassis 100 can be sorted and stored. In some embodiments, the non-uniform dimensions of the side walls 300, end walls 200, and chassis 100, the sorting energy storage can further reduce the space occupied by the side walls 300, end walls 200, and chassis 100 when stacked to increase the efficiency of the pallet box.

In other embodiments, the chassis 100 has a rectangular shape, and sides of the rectangular shape are respectively disposed corresponding to the two end walls 200 and the two side walls 300. The chassis 100 is provided with a bayonet in the upper surface of the periphery thereof, and the two end walls 200 and the two side walls 300 are engaged with each other and connected to the chassis 100.

The chassis 100 is further provided with a limiting structure, the limiting structure can be connected with the chassis 100 and the end wall 200, and can also be connected with the chassis 100 and the side wall 300, so that after the two end walls 200 and the two side walls 300 are clamped on the chassis 100, the end wall 200 and the side wall 300 are prevented from being separated from the chassis 100 when the tray box is subjected to vibration or impact. In some embodiments, the limiting structure includes a limiting latch, a limiting buckle, and the like, which can connect the limiting end wall 200 with the chassis 100, the side wall 300, and the chassis 100.

Referring to fig. 1 to 5, the chassis 100 includes a base plate and a supporting frame 110 disposed at a lower side of the base plate, the supporting frame 110 includes a plurality of supporting legs 111 and a plurality of reinforcing plates 112, the supporting legs 111 extend in an up-down direction, upper ends of the supporting legs 111 are fixedly connected to a lower surface of the base plate, and the supporting legs 111 are arranged at intervals along a circumferential direction of the base plate. A plurality of reinforcing plates 112 extend in the circumferential direction of the base plate, and the plurality of reinforcing plates 112 are fixedly coupled to lower ends of the plurality of legs 111.

In some embodiments, the plurality of legs 111 on both sides of the base plate are disposed opposite each other, and the plurality of legs 111 on both sides of the base plate are disposed opposite each other. A forklift space 113 is formed between two adjacent supporting legs 111 on the same side and the same end of the bottom plate, and two forklift spaces 113 are formed on two sides and two ends of the chassis 100 for accommodating forklift trucks, so that the movement of the pallet box is facilitated.

Referring to fig. 1, 2, 3, 4 and 8, in this embodiment, a detachable structure 310 is disposed at an end of the side wall 300 away from the chassis 100, and the detachable structure 310 is detachably connected with the adjacent end wall 200, so that the chassis 100, the end wall 200 and the side wall 300 can enclose a storage area. The detachable structure 310 can strengthen the structural strength of the pallet magazine. Two detachable structures 310 are provided on the same side wall 300, and the two detachable structures 310 are respectively located at two ends of the side wall 300 near the two end walls 200, so as to separate the end walls 200 and the side wall 300. In some embodiments, the removable structure 310 includes a screw connection, a bayonet connection, a snap connection, or the like, to removably connect the end wall 200 and the side wall 300.

In some embodiments, the side wall 300 is provided with a limiting seat 311 and a rotating pin 312 limited on the limiting seat 311, and the limiting seat 311 is disposed outside the side wall 300 and near the end wall 200. The rotating bolt 312 is rotatably inserted into the limiting seat 311, so that the rotating bolt 312 can move toward the end wall 200. The end of the rotary latch 312 facing the adjacent end wall 200 is provided with a catch 313, and the catch 313 extends in a direction perpendicular to the axis of the rotary latch 312. The end wall 200 is provided with latch holes 211 extending in the up-down direction corresponding to the latch blocks 313. The rotating bolt 312 can move towards the bolt clamping hole 211 so that the clamping block 313 passes through the bolt clamping hole 211, and the rotating bolt 312 can rotate around the axis of the rotating bolt 312 so that the clamping block 313 passes through the bolt clamping hole 211 and then rotates and abuts against the outer side surface of the end wall 200, so that the side wall 300 and the adjacent end wall 200 are limited, the end wall 200 and the side wall 300 are detachably connected, and the end wall 200 and the side wall 300 can be conveniently and quickly separated.

In some embodiments, a handle 314 is further disposed on the rotation latch 312, and the handle 314 is disposed on a circumferential side of the rotation latch 312 and extends along a circumferential direction of the rotation latch 312. Both ends of the handle 314 are connected to the rotation latch 312, so that the handle 314 can drive the rotation latch 312 to rotate. The weight of the handle 314 itself can limit the upward circumferential rotation of the rotation pins 312 when the handle 314 is abutted against the thin plate 420, so that the clamping blocks 313 are staggered with the pin clamping holes 211 to limit the end wall 200 and the side wall 300. In other embodiments, a limiting member 315 is further disposed on the outer side of the thin plate 420 at the handle 314, and the limiting member 315 can limit the movement of the handle 314 and the rotation plug 312 along the circumferential direction of the rotation plug 312, so as to further improve the reliability of the detachable structure 310.

Referring to fig. 1, 2, and 4-8, in the present embodiment, the tray chassis 100, end walls 200, and side walls 300 of the tray box each include a frame 410 and a sheet 420. The outside of frame 410 and sheet 420 is provided with corrosion resistant layer, and corrosion resistant layer of sheet 420 week side is provided with sheet bonding area 421 towards frame 410 side, and the corrosion resistant layer on frame 410 corresponds sheet bonding area 421 and is provided with frame bonding area 412, and the roughness of sheet bonding area 421 and frame bonding area 412 is higher than corrosion resistant layer other positions. An adhesive layer is provided between the sheet bonding area 421 and the frame bonding area 412 to bond the sheet 420 and the frame 410.

The frame 410 includes a frame body and an adhesive plate 411, and the frame body is rectangular. The adhesive plate 411 is disposed inside the frame 410 and extends in the circumferential direction of the frame 410. The adhesive sheet 411 is disposed in parallel with the thin sheet 420, and the thin sheet 420 is located inside the adhesive sheet 411. The frame body and the outer side of the bonding plate 411 are provided with corrosion-resistant layers so as to improve the corrosion resistance of the frame body and the bonding plate 411 and prolong the service life of the frame 410.

The frame bonding area 412 is disposed on the bonding plate 411, and the frame bonding area 412 extends along the extending direction of the bonding plate 411 to improve the connection strength between the frame 410 and the sheet 420. In some embodiments, the corrosion resistant layer on the bonding plate 411 is surface treated to form a frame bonding region 412, and the roughness of the frame bonding region 412 is greater than that of the corrosion resistant layer of other parts of the frame 410, so as to increase the bonding surface area of the frame 410 and the sheet 420 at the bonding region, thereby increasing the bonding strength of the frame 410 and the sheet 420.

In some embodiments, the corrosion resistant layer comprises a hot dip zinc coating, a galvanic coating, a hot dip aluminum zinc coating, a hot dip zinc aluminum magnesium coating, a paint coating, or a spray powder coating.

In some embodiments, a plurality of reinforcing ribs 413 are disposed on the frame 410, the reinforcing ribs 413 are connected to two opposite sides of the frame 410, and the reinforcing ribs 413 can abut against the thin plate 420 to improve the bearing capacity of the frame 410.

In some embodiments, the tray box further includes cover plates detachably disposed on the two end walls 200 and the two side walls 300 to enclose and close the storage area. And the goods in the storage area are ensured.

Referring to fig. 1 to 8, in the present embodiment, the chassis 100, the end wall 200 and the side wall 300 do not affect the corrosion resistance of the corrosion-resistant layer during the process of assembling the pallet box by bonding the frame 410 and the sheet 420. Which can effectively solve the problem that the connection of the frame 410 with the thin plate 420 in the related art will damage the corrosion-resistant layer.

In the use process of the tray box, the two side walls 300 and the two end walls 200 are connected to the upper side of the chassis 100, and the side walls 300 and the end walls 200 are limited on the chassis 100 through the limiting structure. The detachable structure 310 is used to connect and limit the end wall 200 and the side wall 300, so that the chassis 100, the end wall 200 and the side wall 300 enclose a storage area for accommodating and transporting goods.

After the pallet box is used for transporting goods, the end wall 200 and the side wall 300 can be detached and stacked on the chassis 100, so that the pallet box is convenient to store and transport.

In the present application, a corrosion-resistant layer is formed on the outer sides of the frame 410 and the sheet 420, and an adhesive area is provided opposite to the corresponding area of the frame 410 and the sheet 420, so that the frame 410 and the sheet 420 are glued and adhered in the adhesive area. A pressing force is applied to the bonded frame 410 and sheet 420 to bond the frame 410 and sheet 420 tightly. Simultaneously with the pressurization, the frame 410 and the thin plate 420 are dried and solidified. Finally, after the baking and curing are completed, the pressing pressure is removed, and the bonded frame 410 and sheet 420 are taken out to facilitate the assembly of the subsequent pallet box. The tray box manufactured by the method can avoid the damage to the corrosion-resistant layer by welding, riveting and other modes after the frame 410 and the thin plate 420 form the corrosion-resistant layer, avoid producing impurities and pollution, and has high structural strength and long service life.

Referring to fig. 1, 3-5 and 9, the present invention also provides a manufacturing process of the tray box, which includes a frame 410 and a sheet 420 for producing the tray box. The manufacturing process of the tray box comprises the following steps:

s1, a corrosion-resistant layer is formed on both the frame 410 and the thin plate 420.

S2, opposite bonding areas are arranged on the corrosion-resistant layers of the frame 410 and the thin plate 420, and surface treatment is carried out on the bonding areas so as to improve the surface roughness of the bonding areas.

And S3, uniformly gluing the bonding area so as to form a glue layer between the frame 410 and the thin plate 420.

And S4, applying pressing pressure to the frame 410 and the thin plate 420, and drying and curing the adhesive layer between the frame 410 and the thin plate 420, so that the frame 410 and the thin plate 420 are tightly adhered.

And S5, after the compaction and curing treatment is completed, the compaction pressure is removed, and the frame 410 and the thin plate 420 which are connected and molded after curing are taken out together.

In the production process of the pallet box, firstly, the frame 410 and the thin plate 420 are subjected to the treatments of electro-galvanizing, paint spraying, plastic spraying or hot-dip galvanizing and the like, so that corrosion resistant layers are formed on the frame 410 and the thin plate 420, and the corrosion resistance and the service life of the frame 410 and the thin plate 420 can be improved.

The frame 410 and the corrosion resistant layer of the sheet 420 are formed with oppositely disposed bonding areas to facilitate bonding of the frame 410 to the sheet 420. The frame bonding area 412 and the sheet bonding area 421 are each subjected to surface treatment. So that the surface roughness of the corrosion resistant layer in the frame bonding area 412 and the sheet bonding area 421 is higher than that of the corrosion resistant layer in other parts. And then glue is applied to the bonding areas of the frame 410 and the thin plate 420, so that a glue layer is formed between the frame 410 and the thin plate 420.

After the frame 410 and the thin plate 420 are bonded, a pressing pressure is applied to the frame 410 and the thin plate 420, so that the adhesive layer fills the rugged surface in the bonding area, the bonding strength between the adhesive layer and the surface of the corrosion-resistant layer in the bonding area is improved, and the bonding strength between the frame 410 and the thin plate 420 is improved. In addition, in the pressing process of applying pressure, the adhesive layer between the frame 410 and the thin plate 420 is heated and cured, so that the adhesive in the adhesive layer flows on the surface of the corrosion-resistant layer in the bonding area to fill each gap of the rough surface, and the bonding strength of the frame 410 and the thin plate 420 is improved. The method has the advantages that the damage to the corrosion-resistant layer caused by the traditional modes of welding, riveting and the like is effectively avoided, impurities and pollution are avoided, the adhesive property is good, the structural strength is high, and the service life of the tray box is long.

Referring to fig. 9 and 10, in some embodiments, in step S1, a step S11 is further included, where the frame 410 and the sheet 420 are heat-dip, electroplated, painted or spray-molded to form a corrosion-resistant layer.

When the frame 410 and the sheet 420 are hot dip galvanized, the frame 410 and the sheet 420 are treated at 450-480 c under 1 standard atmospheric pressure environment to form a corrosion resistant layer.

When the frame 410 and the sheet 420 are subjected to the electro-galvanizing process, the frame 410 and the sheet 420 are treated at 20-40 c under 1 standard atmospheric pressure environment to form a corrosion-resistant layer.

When the thin plate 420 is subjected to a hot dip aluminum zinc coating process, the thin plate 420 is treated at 580-620 c under 1 standard atmospheric pressure environment to form a corrosion-resistant layer.

When the thin plate 420 is subjected to a hot dip zinc aluminum magnesium coating process, the thin plate 420 is treated at 500-580 deg.c under 1 standard atmospheric pressure environment to form a corrosion-resistant layer.

When the frame 410 and the thin plate 420 are processed by paint coating or plastic powder coating process, the frame 410 and the thin plate 420 are processed under the environment of 5-40 ℃ and 1 standard atmospheric pressure to form a corrosion-resistant layer.

Referring to fig. 9 and 11, in some embodiments, in step S2, a step S21 is further included of performing a surface treatment on the bonding area by using a laser, plasma or a grinding wheel to remove scale and impurities on the bonding area and improve the surface roughness of the bonding area. When the surface treatment is carried out on the bonding area, the treatment environment is 10 ℃ to 40 ℃ and 1 standard atmosphere pressure is adopted.

In other embodiments, a portion of the corrosion-resistant layer between 3 μm and 5 μm is removed when the bonding region on the corrosion-resistant layer is surface-treated, so that the surface roughness of the corrosion-resistant layer is increased.

Referring to FIGS. 9 and 12, in some embodiments, in step S4, a step S41 is further included of applying 5N/cm to the frame 410 and the sheet 420 ² ～30N/cm ² And curing the glue layer between the frame 410 and the sheet 420 at a drying temperature of 10 c to 80 c.

In some embodiments, in step S41, the compacting and curing time is reduced by bmin at a ratio of 5:2 for each increase in the baking temperature by a ℃.

In other embodiments, 15N/cm is applied to the frame 410 and sheet 420 ² Is provided.

In other embodiments, the time for compacting and curing is reduced by 2 minutes every 5 ℃ for the drying temperature to be increased by 10 ℃.

In some embodiments, the frame 410 and the sheet 420 cure the glue layer at a drying temperature of 10 ℃ for a compaction and cure time equal to 30 minutes.

In some embodiments, the frame 410 and the sheet 420 cure the glue layer at a drying temperature of 15 ℃ for a compaction and cure time equal to 28 minutes.

In some embodiments, the frame 410 and the sheet 420 cure the glue layer at a drying temperature of 20 ℃ for a compaction and cure time equal to 26 minutes.

In some embodiments, the frame 410 and the sheet 420 cure the glue layer at a baking temperature of 30 ℃ for a compaction and cure time equal to 22 minutes.

In some embodiments, the frame 410 and the sheet 420 cure the glue layer at a baking temperature of 40 ℃ for a compaction and cure time equal to 18 minutes.

In some embodiments, the frame 410 and the sheet 420 cure the glue layer at a drying temperature of 50 ℃ for a compaction and cure time equal to 14 minutes.

In some embodiments, the frame 410 and the sheet 420 cure the glue layer at a drying temperature of 60 ℃ for a compaction and cure time equal to 10 minutes.

In some embodiments, the frame 410 and the sheet 420 cure the glue layer at a drying temperature of 70 ℃ for a compaction and cure time equal to 6 minutes.

In some embodiments, the frame 410 and the sheet 420 cure the glue layer at a baking temperature of 80 ℃ for a compaction and cure time equal to 2 minutes.

The above examples are illustrative, such that the drying temperature is within any temperature of 10 ℃ to 80 ℃ to dry and cure the glue layer.

While the present application has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration rather than of limitation. As the present application may be embodied in several forms without departing from the spirit or essential attributes thereof, it should be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the metes and bounds of the claims, or equivalences of such metes and bounds are therefore intended to be embraced by the appended claims.

Claims

1. A process for manufacturing a pallet bin, the pallet bin comprising: the frame and the sheet are characterized by comprising the following steps:

s1, forming corrosion-resistant layers on the frame and the thin plate;

s2, opposite bonding areas are arranged on the frame and the corrosion-resistant layer of the thin plate, and surface treatment is carried out on the bonding areas so as to improve the surface roughness of the bonding areas;

s3, uniformly gluing the bonding area to form a glue layer between the frame and the sheet;

s4, applying compaction pressure on the frame and the thin plate, and drying and curing the adhesive layer between the frame and the thin plate, so that the frame and the thin plate are tightly adhered;

and S5, after the compaction and curing treatment is completed, removing the compaction pressure, and taking out the frame and the thin plate which are connected and molded after curing.

2. The manufacturing process according to claim 1, further comprising step S41 of applying 5N/cm to the frame and the sheet in step S4 ² ～30N/cm ² And curing the glue layer between the frame and the sheet at a drying temperature of 10 ℃ to 80 ℃.

3. The manufacturing process according to claim 1, further comprising step S21 of performing a surface treatment on the bonding region by laser, plasma or grinding wheel to remove scale and impurities on the bonding region and increase the surface roughness of the bonding region.

4. The manufacturing process according to claim 1, further comprising step S11, wherein the corrosion-resistant layer is formed on the frame and the thin plate by hot dipping, plating, painting or spraying.

5. A pallet box, characterized in that the pallet box is manufactured by the manufacturing process according to any one of claims 1 to 4, the pallet box comprises a frame and a thin plate, the outer sides of the frame and the thin plate are provided with the corrosion-resistant layer, the corrosion-resistant layer on the periphery side of the thin plate is provided with a thin plate bonding area towards one side surface of the frame, the corrosion-resistant layer on the frame is provided with a frame bonding area corresponding to the thin plate bonding area, and the roughness of the thin plate bonding area and the frame bonding area is higher than that of other parts of the corrosion-resistant layer; the adhesive layer is arranged between the sheet bonding area and the frame bonding area so as to bond the sheet and the frame.

6. The pallet of claim 5, wherein the corrosion resistant layer is a hot dip zinc coating, an electroplated coating, a hot dip aluminum zinc coating, a hot dip zinc aluminum magnesium coating, a painted coating, or a powder spray coating.

7. The tray box of claim 5, further comprising: the device comprises a chassis, two end walls and two side walls, wherein the two end walls are oppositely arranged, the two side walls are oppositely arranged, the end walls are connected with the adjacent side walls, and the two end walls and the two side walls are arranged on the chassis to form a storage area in a surrounding manner; wherein the chassis, the end walls and the side walls are all formed by bonding the frame and the sheet.

8. The tray box according to claim 7, wherein the side walls are snap-connected to the chassis with the end walls to separate the side walls, the end walls from the chassis; or, the side wall and the end wall are rotatably connected to the chassis so that the side wall and the end wall can be folded and placed on the chassis.

9. The tray box according to claim 7, wherein an end of the side wall remote from the chassis is provided with a detachable structure that is detachably connected to an adjacent end wall so that the chassis, the end wall and the side wall can enclose to form the storage area.

10. The pallet magazine of claim 5, wherein a plurality of ribs are provided in the frame, the ribs connecting opposite sides of the frame, the ribs being capable of abutting the sheet.