CN2128197Y

CN2128197Y - Conveyer for printer

Info

Publication number: CN2128197Y
Application number: CN92223896U
Authority: CN
Inventors: 唐志坤
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-06-04
Filing date: 1992-06-02
Publication date: 1993-03-17
Anticipated expiration: 2002-06-02
Also published as: HK39795A; GB2256426B; GB9111935D0; GB2256426A

Abstract

The utility model relates to a conveyer for a printer, comprising a row of wheels (1a, 1b, 1c). The wheels are coaxially arranged at intervals mutually, and accordingly, the lining surfaces of a row of long and parallel rollers are just protruded out of the rims of the wheels. The pressed pressure marks of printing material can be eliminated through the linings (4).

Description

Conveyer for printer

The utility model relates to supper soft drum.

A kind of known conveyer comprises row's wheel, and they are installed with on coaxial line ground parallel to each other with parallel connecting rod spaced-apartly.Conveyer is driven around its axis and rotates, and the wheel rim of swiveling wheel is frictionally engaged with printing material to be carried, and printing material is sent forward pass through printing machine.On printing machine, be provided with many this conveyers, printing material sent each station of printing machine.

When carrying out single color printing, on a single station, a kind of color is applied up usually with dying the plate method continuously.When carrying out polychrome printing, shades of colour is applied up respectively with other stencil printing of branch at each station usually.In the time need on total color background, carrying out polychrome printing, may need with advancing to use web plate and dying plate technique.

A shortcoming of the conveyer of the above-mentioned type is to be pressed tightlyer on wheel rim when printing material is carried with certain angle, thereby extruded impression by wheel.

Above-mentioned shortcoming is overcome by a kind of structure basically, this structure is included in connecting rod and is provided with little roller, a series of little pins are arranged on the outer surface of each roller, and needle point just stretches out outside the wheel rim, reduces printing material thereby roller assist to be carried printing material and is pressed in exposure level on the wheel rim.In general the effect proof of this structure is satisfied.But when needs carried out high-quality single color printing, this structure was also not exclusively satisfied, because in fact little pin has directly stayed tiny vestige at printing material.

The above-mentioned shortcoming that causes when the high-quality single color printing is essentially another kind of structure and overcomes, and it includes the long roller on belt material pad surface, and just stretch out outside the wheel rim on this surface.But the roller on these belt material pad surfaces also is not suitable for polychrome printing, because this roller can be stained with not dried printing ink and it is imprinted on another part that does not need this printing ink from certain part of printing material.

Therefore, the purpose of this utility model provides a kind of supper soft drum, and it can overcome above-mentioned shortcoming, can not produce impression on printing material when carrying printing material, and can be used for high-quality single color printing and also can be used for polychrome printing.

According to the utility model, a kind of conveyer that is used for printing machine is provided, it includes two or more wheels, they install on coaxial line ground in parallel to each other with jockey spaced-apartly, it is characterized in that, each wheel is provided with around its wheel rim apart from one another by a plurality of rollers with smooth rolling surface of opening layout, and be provided with around its wheel rim a plurality of rollers with needle-like rolling surface arranged spaced apart, its structure is made roller with smooth rolling surface and the roller with needle-like rolling surface can move to the position of just stretching out wheel rim.

In the structure of a preferential embodiment, roller divides into groups in pairs, each pair of rollers comprises a roller and the roller with needle-like rolling surface with smooth rolling surface, every pair of rollers is installed in a roller and supports on the seat, support the seat pivotal mounting, thereby any roller can be moved to the operating position.

Now only as an example, for a more detailed description to a conveyer preferred structure of the present utility model in conjunction with the accompanying drawings, in the accompanying drawings:

Fig. 1 is the perspective view of conveyer; And

Fig. 2 takes turns the vast scale perspective view of careful portion for one of them.

Referring now to Fig. 1,, conveyer comprises three wheel 1a, 1b, 1c; Support the connecting rod 2 of wheel with correlation shown in scheming; And two driving shaft 3a that drive the conveyer rotation, 3b.Each wheel 1a, 1b, 1c are provided with many pair of rollers 4,5, and every pair of rollers 4,5 is installed in roller and supports on the seat 6, and roller supports seat 6 around wheel 1a, 1b, and the wheel rim of 1c is being arranged apart from one another by turning up the soil.

Referring now to Fig. 2,, each roller support seat 6 supporting a roller 4 and a roller 5 of being with the needle-like rolling surface with smooth rolling surface.Wheel 1 is provided with and holds the groove 7 that roller is supported seat 6, and roller support seat 6 is pressed in spring 8 in the groove 7.Roller support seat 6 can move to any one in following three positions.First position is to place groove 7 that the roller 4 with smooth rolling surface is stretched out outside the wheel rim of wheel 1 roller support seat 6.Second position is to place groove 7 that the roller 5 of band needle-like rolling surface is stretched out outside the wheel rim of wheel 1 roller support seat 6.The 3rd position is that roller support seat 6 is placed the position shown in the figure dotted line, and two rollers are not stretched out outside the wheel rim.Roller support seat 6 moves with hand between above-mentioned three positions.First position is used for single color printing.Second position is used for polychrome printing.The 3rd position then is used for the low-quality printing.

Claims

1, a kind of conveyer that is used for printing machine, it comprises two or more with the connecting rod coaxial line ground wheel of turning up the soil at interval and installing parallel to each other, it is characterized in that, each wheel is provided with around the wheel rim of wheel and arranges the roller with smooth rolling surface apart from one another by opening, arrange that apart from one another by out the roller with needle-like rolling surface, its structure make roller with smooth rolling surface and the roller with needle-like rolling surface can move to the operating position of just stretching out outside the wheel rim with wheel rim around wheel.