Tray and method for manufacturing tray

Abstract

The invention relates to a tray which comprises a tray panel, a frame and a plurality of supporting legs, the tray panel and the frame are welded and fixed, the supporting legs and the frame are welded and fixed, each supporting leg comprises a first supporting part and a second supporting part, each first supporting part comprises a cross beam and longitudinal beams arranged at the two ends of the cross beam, the bottom face of the cross beam and the outer side face of the longitudinal beam are of an integrated structure, the two ends of the cross beam are cut to form first welding slopes, the end, close to the cross beam, of the longitudinal beam is cut to form second welding slopes, and the first welding slopes and the second welding slopes are welded and fixed. Grooves are formed in the two sides of the joint of the bottom face of the cross beam and the outer side face of the longitudinal beam, and after the longitudinal beam is bent, drainage holes are formed in the grooves. According to the plastic spraying tray, the plastic spraying effect of the tray can be effectively improved, corrosion to the tray is reduced, and meanwhile the bearing capacity of the tray is improved.

Description

Technical Field

[0001] The invention relates to a pallet and a method for manufacturing the pallet. Background Art

[0002] In industrial production activities, pallets are widely used for the storage and turnover of materials. The supporting legs of the pallet are generally formed by welding multiple metal tubes. During the welding process, it is inevitable that there will be incomplete welding between the metal tubes. This will cause water and other liquids to enter the metal tubes during the pickling and phosphating process and be difficult to discharge. During the subsequent spraying, due to the presence of water and other liquids, the temperature of the pallet is likely to be lower than the temperature required for spraying, resulting in poor spraying effect. At the same time, if water and other liquids remain in the metal tubes for too long, the metal tubes will gradually be corroded, which will eventually lead to the deterioration of the pallet's carrying capacity. Summary of the invention

[0003] The purpose of the present invention is to provide a pallet and a method for manufacturing the pallet, which can effectively remove moisture from the supporting legs of the pallet and improve the plastic spraying effect of the pallet.

[0004] The technical solution for achieving the purpose of the present invention is as follows:

[0005] A pallet comprises a pallet panel, a frame and a plurality of supporting legs, wherein the pallet panel is welded and fixed to the frame, the supporting legs are welded and fixed to the frame, the supporting legs comprise a first supporting portion and a second supporting portion, the first supporting portion comprises a crossbeam and longitudinal beams arranged at both ends of the crossbeam, the bottom surface of the crossbeam and the outer side surface of the longitudinal beam are an integral structure, the two ends of the crossbeam are cut to form a first welding bevel, the end of the longitudinal beam close to the crossbeam is cut to form a second welding bevel, and the first welding bevel and the second welding bevel are welded and fixed;

[0006] Grooves are arranged on both sides of the connection between the bottom surface of the cross beam and the outer side surface of the longitudinal beam, and drainage holes are formed at the grooves after the longitudinal beam is bent;

[0007] Two ends of the second supporting part are respectively welded and fixed to the two longitudinal beams.

[0008] After adopting the above structure, the grooves opened in advance at the connection between the crossbeam and the longitudinal beam are formed into drainage holes after the crossbeam and the longitudinal beam are bent. After the pallet is pickled and phosphated, water or other liquids entering the support legs can be naturally discharged from the drainage holes, or the discharge can be accelerated by heating and drying, thereby avoiding the situation where the volume of water or other liquids in the support legs reduces the plastic spraying effect of the pallet, and also avoids the corrosion of the pallet by water or other liquids. In addition, the provision of the grooves facilitates the bending and docking between the crossbeam and the longitudinal beam, reduces the difficulty of bending, and reduces the misalignment of the first welding bevel and the second welding bevel after bending. At the same time, the structure of the longitudinal beam and the crossbeam being bent as one piece can improve the structural strength of the support legs, thereby improving the overall bearing capacity of the pallet. The present invention can effectively improve the plastic spraying effect of the pallet, reduce the corrosion of the pallet, and at the same time improve the bearing capacity of the pallet.

[0009] Preferably, an intermediate support tube is provided between the first support portion and the second support portion, and both ends of the intermediate support tube are respectively welded and fixed to the cross beam and the second support portion, so as to improve the structural strength and bearing capacity of the pallet.

[0010] Preferably, the upper end surface of the longitudinal beam and the upper end surface of the second supporting portion are welded and fixed to the frame, which can improve the structural strength and load-bearing capacity of the pallet.

[0011] Preferably, the groove is V-shaped.

[0012] Preferably, the groove is arc-shaped.

[0013] Preferably, the first supporting portion and the second supporting portion are made of square tubes.

[0014] A method for manufacturing a pallet, comprising the following steps:

[0015] S1, the plate is bent and welded to form a frame square tube and a pallet panel, and a plurality of frame square tubes are welded and fixed to form a square or rectangular frame, and the pallet panel is welded and fixed to the inner edge of the frame;

[0016] S2, the plate is bent and welded to form a first square tube and a second square tube, the upper surface and the side of the first square tube are cut to divide the first square tube into a first part, a second part and a third part in sequence, the two ends of the second part form a first welding bevel, the first part and the end of the third part close to the crossbeam form a second welding bevel, and a groove is provided at the connection between the first part and the second part and at the connection between the third part and the second part;

[0017] S3, bend the first square tube so that the first part and the second part are bent at 90 degrees, the third part and the second part are bent at 90 degrees, the first welding bevel and the second welding bevel are butted and welded to fix, the first part and the third part form a longitudinal beam, the second part forms a transverse beam, and the groove forms a drainage hole;

[0018] S4, the two ends of the second square tube are welded and fixed to the longitudinal beam to form a supporting leg;

[0019] S5, multiple supporting legs are welded and fixed to the frame to form a semi-finished pallet;

[0020] S6, performing pickling and phosphating treatment on the surface of the semi-finished pallet;

[0021] S7, drying the semi-finished pallet to remove moisture from the interior and exterior of the semi-finished pallet;

[0022] S8, spraying the semi-finished pallet to form a finished pallet.

[0023] The pallet deck is made of corrugated board.

[0024] In step S5, the second square tube of the support leg and the longitudinal beam are welded and fixed to the frame.

[0025] The drying temperature in step S7 is 140°C-220°C. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Figure 1 It is a structural schematic diagram of the present invention.

[0028] Figure 2 It is a bottom schematic diagram of the present invention.

[0029] Figure 3 It is a schematic diagram of the drainage hole of the present invention.

[0030] Figure 4 It is a schematic diagram of the connection between the cross beam and the longitudinal beam of the present invention.

[0031] Figure 5 It is a schematic diagram of an embodiment of a V-shaped groove of the present invention.

[0032] Figure 6 Schematic diagram of an embodiment of an arc-shaped groove of the present invention. DETAILED DESCRIPTION

[0033] like Figures 1 to 5As shown, a pallet of the present invention comprises a pallet panel 1, a frame 2 and a plurality of supporting legs 3, wherein the pallet panel is welded and fixed to the frame, and the supporting legs are welded and fixed to the frame, wherein the supporting legs comprise a first supporting portion 4 and a second supporting portion 5, wherein the first supporting portion comprises a cross beam 6 and a longitudinal beam 7 arranged at both ends of the cross beam, wherein the bottom surface 8 of the cross beam and the outer side surface 9 of the longitudinal beam are an integral structure, wherein both ends of the cross beam are cut to form a first welding bevel 10, and an end of the longitudinal beam close to the cross beam is cut to form a second welding bevel 11, and the first welding bevel and the second welding bevel are welded and fixed;

[0034] Grooves 12 are provided on both sides of the connection between the bottom surface of the cross beam and the outer side surface of the longitudinal beam. After the longitudinal beam is bent, drainage holes 13 are formed in the grooves.

[0035] Two ends of the second supporting part are respectively welded and fixed to the two longitudinal beams.

[0036] like Figure 1 and Figure 2 As shown, an intermediate support tube is provided between the first support portion and the second support portion, and two ends of the intermediate support tube are respectively welded and fixed to the cross beam and the second support portion.

[0037] like Figure 1 and Figure 2 As shown, the upper end surface of the longitudinal beam and the upper end surface of the second supporting portion are welded and fixed to the frame.

[0038] In some embodiments, Figure 5 As shown, the groove is V-shaped.

[0039] In some embodiments, Figure 6 As shown, the groove is in the shape of an arc.

[0040] In some embodiments, the first support portion and the second support portion may be made of square tubes.

[0041] After adopting the above structure, the grooves opened in advance at the connection between the crossbeam and the longitudinal beam are formed into drainage holes after the crossbeam and the longitudinal beam are bent. After the pallet is pickled and phosphated, water or other liquids entering the support legs can be naturally discharged from the drainage holes, or the discharge can be accelerated by heating and drying, thereby avoiding the situation where the volume of water or other liquids in the support legs reduces the plastic spraying effect of the pallet, and also avoids the corrosion of the pallet by water or other liquids. In addition, the provision of the grooves facilitates the bending and docking between the crossbeam and the longitudinal beam, reduces the difficulty of bending, and reduces the misalignment of the first welding bevel and the second welding bevel after bending. At the same time, the structure of the longitudinal beam and the crossbeam being bent as one piece can improve the structural strength of the support legs, thereby improving the overall bearing capacity of the pallet. The present invention can effectively improve the plastic spraying effect of the pallet, reduce the corrosion of the pallet, and at the same time improve the bearing capacity of the pallet.

[0042] A method for manufacturing a pallet, characterized in that it comprises the following steps:

[0043] S1, the plate is bent and welded to form a frame square tube and a pallet panel, and a plurality of frame square tubes are welded and fixed to form a square or rectangular frame, and the pallet panel is welded and fixed to the inner edge of the frame;

[0044] S2, the plate is bent and welded to form a first square tube and a second square tube, the upper surface and the side of the first square tube are cut to divide the first square tube into a first part, a second part and a third part from left to right, the two ends of the second part form a first welding bevel, the first part and the end of the third part close to the second part form a second welding bevel, and a groove is provided at the connection between the first part and the second part and at the connection between the third part and the second part;

[0045] S3, bend the first square tube so that the first part and the second part are bent at 90 degrees, the third part and the second part are bent at 90 degrees, the first welding bevel and the second welding bevel are butted and welded to fix, the first part and the third part form a longitudinal beam, the second part forms a transverse beam, and the groove forms a drainage hole;

[0046] S4, the two ends of the second square tube are welded and fixed to the longitudinal beam to form a supporting leg;

[0047] S5, multiple supporting legs are welded and fixed to the frame to form a semi-finished pallet;

[0048] S6, performing pickling and phosphating treatment on the surface of the semi-finished pallet;

[0049] S7, drying the semi-finished pallet to remove moisture from the interior and exterior of the semi-finished pallet;

[0050] S8, spraying the semi-finished pallet to form a finished pallet.

[0051] In some embodiments, the pallet deck is made from corrugated board.

[0052] In some embodiments, in step S5, the second square tube of the support leg and the longitudinal beam are welded and fixed to the frame.

[0053] In some embodiments, the drying temperature in step S7 is 140°C-220°C. Specifically, the drying temperature can be one of 140°C, 145°C, 150°C, 155°C, 160°C, 165°C, 170°C, 175°C, 180°C, 185°C, 190°C, 195°C, 200°C, 205°C, 210°C, 215°C, and 220°C.

[0054] In some embodiments, Figure 5 As shown, the groove is V-shaped.

[0055] In some embodiments, Figure 6 As shown, the groove is in the shape of an arc.

[0056] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pallet, comprising a pallet panel, a frame and a plurality of supporting legs, wherein the pallet panel is fixed to the frame by welding, and the supporting legs are fixed to the frame by welding, characterized in that: The support leg includes a first support portion and a second support portion, the first support portion includes a crossbeam and longitudinal beams arranged at both ends of the crossbeam, the bottom surface of the crossbeam and the outer side surface of the longitudinal beam are an integral structure, the two ends of the crossbeam are cut to form a first welding bevel, and one end of the longitudinal beam close to the crossbeam is cut to form a second welding bevel, and the first welding bevel is welded and fixed to the second welding bevel; Grooves are arranged on both sides of the connection between the bottom surface of the cross beam and the outer side surface of the longitudinal beam, and drainage holes are formed at the grooves after the longitudinal beam is bent; Two ends of the second supporting part are respectively welded and fixed to the two longitudinal beams.

2. The pallet according to claim 1, characterized in that: An intermediate support tube is arranged between the first support part and the second support part, and two ends of the intermediate support tube are respectively welded and fixed to the cross beam and the second support part.

3. The pallet according to claim 1, characterized in that: The upper end surface of the longitudinal beam and the upper end surface of the second supporting portion are welded and fixed to the frame.

4. The pallet according to claim 1, characterized in that: The groove is V-shaped.

5. The pallet according to claim 1, characterized in that: The groove is in an arc shape.

6. The pallet according to any one of claims 1 to 5, characterized in that: The first supporting part and the second supporting part are made of square tubes.

7. A method for manufacturing a pallet, characterized in that: The following steps are involved: S1, the plate is bent and welded to form a frame square tube and a pallet panel, and a plurality of frame square tubes are welded and fixed to form a square or rectangular frame, and the pallet panel is welded and fixed to the inner edge of the frame; S2, the plate is bent and welded to form a first square tube and a second square tube, the upper surface and the side of the first square tube are cut to divide the first square tube into a first part, a second part and a third part in sequence, the two ends of the second part form a first welding bevel, the first part and the end of the third part close to the crossbeam form a second welding bevel, and a groove is provided at the connection between the first part and the second part and at the connection between the third part and the second part; S3, bend the first square tube so that the first part and the second part are bent at 90 degrees, the third part and the second part are bent at 90 degrees, the first welding bevel and the second welding bevel are butted and welded to fix, the first part and the third part form a longitudinal beam, the second part forms a transverse beam, and the groove forms a drainage hole; S4, the two ends of the second square tube are welded and fixed to the longitudinal beam to form a supporting leg; S5, multiple supporting legs are welded and fixed to the frame to form a semi-finished pallet; S6, performing pickling and phosphating treatment on the surface of the semi-finished pallet; S7, drying the semi-finished pallet to remove moisture from the interior and exterior of the semi-finished pallet; S8, spraying the semi-finished pallet to form a finished pallet.

8. The method for manufacturing a pallet according to claim 7, characterized in that: The pallet deck is made of corrugated board.

9. The method for manufacturing a pallet according to claim 7, characterized in that: In step S5, the second square tube of the support leg and the longitudinal beam are welded and fixed to the frame.

10. The method for manufacturing a pallet according to claim 7, characterized in that: The drying temperature in step S7 is 140°C-220°C.

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