CN100387497C

CN100387497C - Cake box base tray, its producing method and device

Info

Publication number: CN100387497C
Application number: CNB2004100268238A
Authority: CN
Inventors: 洪泽雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-04-07
Filing date: 2004-04-07
Publication date: 2008-05-14
Anticipated expiration: 2024-04-07
Also published as: CN1666935A

Abstract

The present invention relates to a cake-box bottom tray made of paper boards, and a method and a device thereof. The present invention has the technical scheme that radial strip folding lines are punched at the outer side of an upper paper board by an impressing mould; then, the upper paper board is punched in a concave-convex mould, and a convex platform is formed in the middle of the upper paper board; part of the strip folding lines at the outer side are formed into the side walls and the bottom edges of the platform; the bottom edges are pasted on a lower paper board, and the cake-box bottom tray is formed. The present invention realizes mechanical shaping of the cake-box bottom tray made of paper boards through punching folding lines, and has the advantages of less manual operation, sanitation and cleanness of finished trays, great hardness of produced cake-box bottom trays, convenient transportation, portability, simple equipment and low operation difficulty.

Description

Cake box bottom tray and manufacture method thereof and equipment

Technical field

The present invention relates to a kind of packing material or container and manufacture method thereof and equipment, more specifically is a kind of with paperboard cake box bottom tray and manufacture method and equipment.

Background technology

Cake box bottom tray has plastic and made of paper basically, owing to consider its manufacturing cost, the pallet intensity that plastics are made is relatively poor, is unfavorable for transporting and carrying; The general employing of pallet made of paper made by hand, production efficiency is low, outward appearance is coarse, easily introduce bacterium in the making, home built circle or oval serving platter also can form the platform of a projection, but this platform should paste by two cardboards, and one of them is used to form the platform table top, another is used to form mesa sidewalls, and the flexural strength on flat-bed outer side edges or title base is lower like this.The slit appears in the junction of its table top and sidewall, and water or oil easily infiltrate through cardboard from the slit, makes the local variable color of cardboard, and the possibility breed bacteria is quickened food spoilage under extreme case.

Summary of the invention

The purpose of this invention is to provide the bigger cake box bottom tray made of paper of a kind of hygiene and intensity.

Another object of the present invention provides the manufacture method and the equipment of this pallet, and this method is avoided staff contact pallet, guarantees the hygiene of ready-made tray.

Cake box bottom tray of the present invention comprises upper and lower two cardboards, and last cardboard middle part upwards projection forms platform, and there is the well-distributed scrimp on mesa sidewalls and base, and the base is fitted in down on the cardboard.

Can there be strengthening rib above-mentioned platform inside.

The above-mentioned cardboard upper surface of going up has plastic sheeting composite bed or waterproofing coating.

The manufacture method of above-mentioned cake box bottom tray is earlier paper board material to be cut into circle to be used for as last cardboard, at the radial bar shaped scrimp of the outside of last cardboard punching press, the cardboard middle part forms the platform of projection on will going up cardboard then punching press making in male and female mold, the bar shaped scrimp in the outside partly forms mesa sidewalls and base, again the base is pasted on down cardboard.

Be used for being compounded with plastic sheeting or waterproofing coating in advance as the paper board material of last cardboard.

The equipment of above-mentioned cake box bottom tray is the impression mould that makes cardboard form radial scrimp having on the press machine, and this mold periphery has to erect arranges the radial pressing plate of formation; And make cardboard form the male and female mold of raised platforms.

There is annular cutting knife the pressing plate outer end of above-mentioned impression mould.

In the die in the described male and female mold ring heater is arranged.

The present invention changes the ductility of cardboard by the punching press scrimp, realizes cardboard cake box bottom tray mechanization moulding, reduce manual operation, guarantee the hygiene of ready-made tray, the cake box bottom tray hardness of making is big, be convenient to transport and carry, equipment is simple, and operation easier is low.

Description of drawings

Fig. 1 is a cardboard scheme drawing on the cake box bottom tray of the present invention;

Fig. 2 is a cake box bottom tray block diagram;

Fig. 3 is a cake box bottom tray cutaway view;

Fig. 4 is the press machine scheme drawing;

Fig. 5 is an impression mould birds-eye view;

Fig. 6 is the A-A cutaway view.

Fig. 7 is the male and female mold cutaway view

The specific embodiment

Fig. 1 illustrates a kind of form of cardboard 1, and there is the platform 2 of projection at the middle part, and there is scrimp 5 on the sidewall 3 of platform 2 and the base 4 of last cardboard 1.The making of last cardboard 1 be by sheet board through the impression mould at peripheral punching press scrimp 5, form raised platforms 2 in the male and female mold punching press, wherein have the peripheral part of scrimp 5 to form the base 4 of flat-bed sidewall 3 and last cardboard.Scrimp 5 best rectangular distributions, forming above cardboard center is the radial of axle center, so that sidewall 3 and base 4 even folds.On making, before the cardboard, can carry out water-proofing treatment, for example composite plastic film, covering with paint water-reducible finish or polishing to the paper of sheet board.

Fig. 2 and Fig. 3 illustrate the cake box bottom tray of making, and comprise cardboard 1 and following cardboard 6, the base 4 and following cardboard 6 bonding connections of last cardboard, and there is strengthening rib 7 platform 2 inside.Last cardboard 1 is sloughed the punch 19 on top after the male and female mold punch forming, last cardboard 1 places the die 18 of bottom, puts strengthening rib 7 at recess, and periphery scribbles the following cardboard 6 of adhesion agent and fits with last cardboard.After the last cardboard punch forming, the scrimp of periphery is partly as flat-bed sidewall 3, paper external diameter as base 4 is reduced, therefore, shrink at the scrimp place on base 4, partly folding, after fitting with following cardboard, shape is fixed, and because the fold of paper has strengthened horizontal flexural strength.

Fig. 4 is can be for a kind of press machine scheme drawing of the present invention's use, and this equipment comprises cylinder 11, and portable plate 12 connects the movable axis 13 of cylinders 11.To in the cardboard punching press scrimp operation, the impression mould is loaded on portable plate 13 bottoms, cardboard places the base 14 of press machine, the pressure of regulating the length of movable axis 13 and cylinder 11 is so that form the suitable scrimp degree of depth.In last cardboard moulding stamping procedure, the die 18 in the male and female mold is loaded on the base 14, and the punch 19 in the male and female mold is loaded on the below of portable plate 12.In the bonding process of cardboard up and down, die 18 still is loaded on the base 14, and the punch 19 of portable plate 12 belows replaces to flat board.

Fig. 5 and Fig. 6 illustrate a kind of structure of impression mould, and pressing plate 15 vertically is radial and is uniformly distributed in the outside of template 16, in pressing plate 15 outer ends annular hand papercutter 17 is arranged.15 distances of pressing plate can 1-10 millimeter, preferably 3-6 millimeter.Hand papercutter 17 a little more than pressing plate 15 in case on the cardboard burr are excised in the cardboard punching press scrimp.

The male and female mold of Fig. 7 comprises the punch 19 of die 18 and coupling, and the internal diameter of shrinkage pool 20 is identical with last cardboard raised platforms in the die 18.Punching press has the last cardboard of scrimp after the male and female mold punching press, and periphery is crooked the contraction at the scrimp place, and is partly folding, because the scrimp distance is less, and the evenly contraction and be unlikely to occur local eminence of last cardboard periphery.Being positioned in the die 18 has ring heater 21 outside the shrinkage pool 20, in the cardboard operation, the heating of temperature booster 21 can be quickened the drying of adhesion agent under pressing is pasted.

Claims

1. a circle cake box made of paper bottom tray comprises upper and lower two cardboards, it is characterized in that, the described upwards projection formation platform of cardboard middle part of going up, and there is the radial scrimp of well-distributed on mesa sidewalls and base, and the base is fitted in down on the cardboard.

2. according to the described cake box of claim 1 bottom tray, it is characterized in that there is strengthening rib described platform inside.

3. according to the described cake box of claim 1 bottom tray, it is characterized in that described going up on the cardboard has plastic sheeting composite bed or waterproofing coating.

4. the manufacture method of the described cake box of claim 1 bottom tray, it is characterized in that, paper board material is cut into circle to be used for as last cardboard, at the radial bar shaped scrimp of the outside of last cardboard punching press, the cardboard middle part forms the platform of projection on will going up cardboard then punching press making in male and female mold, the bar shaped scrimp in the outside partly forms mesa sidewalls and base, again the base is pasted on down cardboard.

5. according to the described method of claim 4, it is characterized in that, be used for being compounded with plastic sheeting or waterproofing coating as the paper board material of last cardboard.

6. make the equipment of the described cake box of claim 1 bottom tray, it is characterized in that the impression mould that makes cardboard form radial scrimp is arranged on the press machine, this mold periphery has to erect arranges the radial pressing plate of formation; And make cardboard form the male and female mold of raised platforms.

7. according to the described equipment of claim 6, it is characterized in that there is annular hand papercutter the pressing plate outer end of described impression mould.

8. according to the described equipment of claim 6, it is characterized in that in the die of described male and female mold ring heater being arranged.