CN201456019U - Inserting type disposable plastic dinner knife - Google Patents

Abstract

The utility model discloses an inserting type disposable plastic dinner knife. The dinner knife comprises a dishware head part and a handle part connected with the dishware head part in an inserting manner, wherein the dishware head part comprises a knife and a plug with one end thereof connected with the knife, and a ratchet structure is arranged on the plug to avoid looseness in the using process after the plug is inserted; an insertion hole used for the insertion of the plug is formed at one end of the handle part; and the dishware head part and handle part are made of different materials, and present two different decorative effects of appearances. When in assembly, the dishware head part is inserted to the injection molded handle part; and during the inserting process, the handle part shrinks in the cooling process, thereby realizing that the dishware head part is fastened in the insertion hole of the handle part. The utility model has the advantages of novel and unique structure, low manufacturing cost, quick adaptability of market changes, and prominent selling point, thereby meeting the requirements of people's aesthetic judgment and happy mood when in normal dining.

Description

Plug-in type disposable plastic table knife

Technical field

The utility model relates to the disposable tableware field, particularly a kind of assembly type plastic tableware.

Background technology

All conglomeraties such as disposable plastic tableware (mainly containing kinds such as meal spoon, table fork, teaspoon, soupspoon) is that recent two decades comes at home and abroad food and drink, pantry, family, civil aviation, navigation, railway transport of passengers are served the meals the food and drink instrument of extensive employing.Owing to itself have cleaning, light, safe, discardable and callable characteristic, applying unit can be saved a large amount of human costs in addition, has avoided losing the loss that causes because of metalic tableware, is subjected to liking of domestic and international consumer deeply.

At present, being classified as follows of disposable plastic injection mo(u)lding tableware:

1) classifies according to material

1. polystyrene plastics (PS) injection mo(u)lding is characterized in that hardness and bending strength are higher, and the tableware surface can form very high fineness with mould, and light transmission and transparency are good.

2. polypropylene plastics (PP) injection mo(u)lding is characterized in good toughness, and bulk strength will be higher than PS injection mo(u)lding tableware product.Can in raw material, add suitable filler with further raising intensity according to customer requirement, and can add the product that pigment forms different color according to customer requirement.

2) classify according to surface effect

1. true qualities or opaque products promptly do not add filler and pigment when injection mo(u)lding, and its end product is the true qualities or the water white transparency of plastic raw materials.

2. coloured prod adopts the process that adds pigment and filler in plastic raw materials, make end product darkly, in vain, various gorgeous colors such as basket, purple.

3. surface coating product, on the polystyrene tableware matrix surface of injection mo(u)lding, adopt process of surface treatment such as evaporation coating or ion sputtering plated film, form the gold of a layer thickness about 100 nanometers, the metal film of silver color or stainless steel color, make disposable plastic tableware outward appearance have the sensory effects of metalic tableware, for example, the patent No. is 02820864.1, denomination of invention is metallized cutlery, this described tableware is to be made of plastics, and only depositing the thin metal level of one deck on a surface by the vacuum sputtering depositional mode, and then metal cutlery or silverware outward appearance are being provided.

For above-mentioned once injection moulding plastic tableware, its limitation and shortcoming are as follows:

No matter be the PS material or the disposable plastic tableware of PP material, owing to the restriction of its Shooting Technique and die cost, all can only produce the product of single color and luster, promptly each position of every product can only be a kind of tone, gives dull stiff sensation.Even if surface coating or other coating process, product also can only plate out color and effect with a kind of metal, can not fundamentally solve the single problem of color and luster, the product color dullness lacks aesthetic feeling.

In addition, in the ordinary course of things, various coating more or less all can produce the harmful substance to human body, are not suitable for the application plastic tableware.

In addition, disposable plastic tableware under the conventional art background, owing to the size reason of product own, and when designing mould, to consider production efficiency (every modulus amount) and the injection machine model that is adopted, obtain the balance between efficient and the cost betwixt, so die size is generally all bigger, thereby the manufacturing cost that makes mould is difficult to reduce. generally speaking, many floriations and reinforcement can be arranged in disposable plastic tableware surface, to guarantee the end product overall appearance, therefore the plane that needs meticulous polishing in the mold cavity, curved surface, thin portion link is a lot, and then make that the polishing time can be very long, and cause certain difficulty for the mold repair polishing in the daily production process.

The ability of above-mentioned disposable plastic tableware adaptation to market variations, no matter be domestic or external, the product of catering trade (comprising packing) is all constantly being innovated, for increasing the attraction, increase the benefit and competitiveness, the client can constantly propose new tableware shape and color and luster requirement, and the once injection moulding plastic tableware under the conventional art background is difficult to quick adaptation to this vertiginous requirement, and, according to order production is the passing rules of disposable plastic tableware industry, if the product of some kinds does not have order in the long period, it is idle for a long time then can to cause enterprise to drop into the mould that a lot of manpower financial capacities develop, and causes the rising of fund and maintenance cost.

The utility model content

In view of the above problems, the utility model discloses a kind of rich color, low cost of manufacture, and dismountable plug-in type disposable plastic table knife.

To achieve these goals, the utility model has adopted following technical proposals:

Described plug-in type disposable plastic table knife comprises tableware head and the shank that adopts plug-in type to be connected with this tableware head; Wherein, described tableware head comprises that cutter is connected the plug of this cutter with an end, is being provided with the ratchet structure that gets loose after preventing to patch on the described plug; Described shank one end offers the jack that patches assembling for described plug.

In addition, the root that inserts jack at described plug is provided with the fillet structure that prevents that stress from concentrating influence intensity, and is provided with in described jack openings position and the slit occurs after preventing to patch and influence chamfering structure attractive in appearance.

Adopt hot charging prescription formula to remove to improve the firmness that patches during assembling, promptly when the manufacturing of described tableware head is finished, itself and the shank of just finishing injection molded are patched, and this shank shrinks in cooling procedure, and then realizes the tableware head is fastened in the shank jack.

Compared with prior art, plug-in type disposable plastic table knife described in the utility model has the following advantages:

1) plug-in type structure, novel unique;

2) low cost of manufacture, and adaptation to market variations, the attraction is outstanding;

3) tableware head and shank are connected firmly, and difficult drop-off during use is enough to satisfy the normal needs of having meal of people.

Description of drawings

Fig. 1 is the structural representation of plug-in type disposable plastic table knife described in the utility model;

Fig. 2 is the decomposing schematic representation of plug-in type disposable plastic table knife described in the utility model;

Fig. 3 is the enlarged diagram of label 3 shown in Fig. 2;

Fig. 4 is the enlarged diagram of label 4 shown in Fig. 2;

Fig. 5 is the enlarged diagram of label 5 shown in Fig. 2.

The specific embodiment

Come plug-in type disposable plastic table knife described in the utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment.

Be the mentality of designing of whole one at the disposable plastic tableware under the conventional art background, the utility model changes into by tableware head and shank two parts to be formed, promptly adopt merogenesis plug-in type structure up and down, two kinds and above color had both perfectly been realized on a tableware, realizing, also make part length shorten to about 1/2 of whole single injection moulding tableware, like this, do not reducing under the prerequisite that every modulus amount or every modulus amount slightly increase, die size is dwindled, and die manufacturing cost has obtained reduction.

What is more important; in the practical application; when if cutter or shank damage; can change the damaged part dismounting new; for consumer and restaurant unit, promptly also can take only to change head after the disposable use, and keep the mode that shank continues use; thereby help consumer and client to reduce cost of use and operation cost, objectively promoted social energy-saving and emission-reduction and environmental protection.

In addition, when the client proposes new the requirement or enterprise during according to the new pattern of market demand independent development, change the moulding of product if desired, then only redesign the shank that manufactures a product, promptly only need open the renewal that can realize product-forming once secondary novel shank mould, thereby reduce product development cost, and because the interior product profile of product mold die cavity becomes simple relatively, the mold cavity polishing time is shortened dramatically, shortened manufacturing schedule greatly; With a kind of shank of moulding, also can when injection mo(u)lding, make shades of colour, both adapted to the different consumption demand of various customers, increased the attraction of product.

Shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 4, plug-in type disposable plastic table knife described in the utility model is to comprise tableware head 1 and the shank 2 that adopts plug-in type to be connected with this tableware head 1; Wherein, described shank 2 can adopt toughness preferably polypropylene plastics and in this material in addition filler and pigment injection moulding process, also can adopt other plastic materials to add pigment and make.

Offer the jack 20 that the tool head 1 of serving the meals patches usefulness at described shank 2 one ends.Described tableware head 1 adds surface coating for the higher polystyrene plastics of employing hardness or other decorative appearance PROCESS FOR TREATMENT forms, also can adopt polystyrene to add pigment makes, this tableware head 1 comprises cutter 10 and plug 11, therefore on described plug 11 outer surfaces, be provided with ratchet structure 110, can prevent from effectively that plug 11 from patching behind jack 20 in use to get loose.

In addition, in the practical application, rock for fear of side direction takes place, dimensional tolerance adopts interference fits between described plug 11 and the jack 20, and described tableware head 1 and shank 2 be injection molded respectively, does not interdepend during manufacturing.

In order to improve the firmness that patches, in actual applications, can when patching assembling, adopt hot charging prescription formula, promptly, after tableware head 1 is finished whole technical process, itself and the shank 2 that just injected from injection machine are patched, wherein for utilize shank 2 can the generation contraction in the polypropylene material cooling procedure of employings principle, thereby tableware head 1 insertion portion is held tightly, reached the firm purpose of assembling.

Referring to Fig. 3, described plug 11 and connection cutter 10 root position places have fillet structure 111, and this fillet structure 111 relatively, 20 aperture position places are provided with the chamfering structure 21 that cooperates with this fillet structure 111 at described jack, thereby be convenient to smooth assembling, reduce to assemble the slit of back plug 11 and jack 20 binding sites, improve the aesthetic measure of product.

In addition, because the utility model is for adopting the connected mode of plug-in type, therefore; if consumer and restaurant unit are based on energy-saving and emission-reduction or environmental protection; also can after shank 2 or 1 damage of tableware head or use, be new with its dismounting and change, and needn't abandon whole table knife.

In addition, for gaining in strength, described plug 1 and also be provided with the fillet structure (not shown) towards jack 20 those end ends is concentrated to reduce stress.

Claims (3)

1. a plug-in type disposable plastic table knife is characterized in that, comprises tableware head (1) and the shank (2) that adopts plug-in type to be connected with this tableware head (1); Wherein, described tableware head (1) comprises that cutter (10) is connected the plug (11) of this cutter (10) with an end, and is being provided with the ratchet structure (110) that gets loose after preventing to patch on the described plug (11); Described shank (2) one ends offer the jack (20) that patches assembling for described plug (11).

2. according to the described plug-in type disposable plastic of claim 1 table knife, it is characterized in that the root that inserts jack (20) at described plug (11) is provided with fillet structure (111).

3. according to the described plug-in type disposable plastic of claim 1 table knife, it is characterized in that, be provided with the chamfering structure (21) that occurs the slit after preventing to patch at described jack (20) aperture position place.

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