CN2280620Y

CN2280620Y - Coating machine

Info

Publication number: CN2280620Y
Application number: CN 94245566
Authority: CN
Inventors: 王恩亮
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-11-28
Filing date: 1994-11-28
Publication date: 1998-05-06
Anticipated expiration: 2004-11-28

Abstract

The utility model relates to a coating machine which can copy a layer of the precoat film on one surface or double surfaces of photos, and various printed articles. The utility model comprises a transmission system, a feeding roller, a heating roller, a passive heating roller, a withdrawal roll, a passive withdrawal roll, a machine frame, etc. The heating roller and the passive heating roller whose structures are same are all composed of a roller body whose wall is a cavity, and an electrothermal element passed through the center hole of the roller body; a heat conducting medium is arranged in the cavity of the wall of the roller body. The coating machine has the advantages that the temperature of the surface of the roller body of the heating roller and the passive heating roller is even, and the hot melting temperature of the precoat film is easy to control.

Description

Coating machine

The utility model relates to a kind of energy comparison film, the one side of various printing paper products or the coating machine of double-sided replication one deck precoating film.

Existing coating machine has two kinds of internal heat type coating machine and external-heat coating machines.Be provided with heating in its warm-up mill of internal heat type coating machine and the passive warm-up mill, by heating directly to heating in warm-up mill and the passive warm-up mill, the thermal capacity of this coating machine warm-up mill and passive warm-up mill is bigger, there is long time heating just can reach the required temperature of multiple film, and roll surface temperature skewness, so that the multiple film quality of influence.In order to overcome the above-mentioned defective of internal heat type coating machine technology, the someone has proposed external-heat coating machine technology.Patent Office of the People's Republic of China's " utility model patent communique) " announced name on March 9th, 94, and to be called " external-heat coating machine ", the patent No. be 93210717.6 utility model patent, this external-heat coating machine has been given up the heating in existing internal heat type coating machine warm-up mill and the passive warm-up mill, and at two pressure roller peripheral hardware arc calandrias, the inner concave of arc calandria is provided with electrothermal tube and is installed on the casing, precoating film is earlier through arc calandria heating hot melt, after the multiple film of two pressure rollers.Therefore, it have temperature rise rapidly, reach multiple film temperature required time and shorten dramatically.But, this external-heat coating machine is owing to be by its arc calandria precoating film heating to be made it hot melt, before after with the precoating film hot melt, entering the multiple film of two pressure rollers, film will lose a part of heat, so that the precoating film hot melt duration and degree of heating is not good enough, the fastness of the multiple film of influence, all the more so to the multiple film of large tracts of land.

The purpose of this utility model provides a kind of improved internal heat type coating machine, and it can solve the preceding not good enough problem of the precoating film hot melt duration and degree of heating of the multiple film of existing internal heat type coating machine warm-up mill and passive warm-up mill surface temperature distribution inequality and external-heat coating machine.

The purpose of this utility model is to realize like this.To have internal heat type coating machine warm-up mill now, and be heated roller and be improved to by the interior indirectly heating of heating by the directly interior heating of heating.Is the roll body of cavity, the heating formation of passing roll body centre bore with being heated roller by its wall with warm-up mill, contain heat-conducting medium in the cavity of roll body wall.Like this, heating is that the heat-conducting medium through roll body wall cavity transmits heat to roll body, thereby makes that the roll body surface temperature distribution is even; And, can accomplish easily also that then pair roller surface temperature controlling makes it to reach the optimum value of precoating film hot melt because the heating-up temperature of heat-conducting medium is easy to control, be full of the needs of the multiple film of high-quality.

Aforesaid coating machine is with rubber sleeve outside the warm-up mill roll body.

The utility model is owing to adopt heating roll body to be heated the warm-up mill and the passive warm-up mill of this spline structure through heat-conducting medium, more existing internal heat type coating machine and external-heat coating machine, the advantage that its tool warm-up mill and passive warm-up mill roll body surface temperature distribution are even, the precoating film hot melting temperature is easy to control, it can satisfy the needs of the multiple film of high-quality, especially to the multiple film of large tracts of land, this is the breakthrough that existing coating machine technology is difficult to accomplish the multiple film of high-quality.

Fig. 1 is the coating machine structure diagram that the utility model proposes;

Fig. 2 is the coating machine warm-up mill structural representation that the utility model proposes;

Fig. 3 is the passive warm-up mill structural representation of coating machine that the utility model proposes.

The coating machine embodiment that the utility model proposes below in conjunction with the accompanying drawing introduction.Coating machine as shown in Figure 1, comprise: feeding roller (10), warm-up mill (12), passive warm-up mill (2), withdrawing roll (4), passive withdrawing roll (1), transmission system, frame (not drawing among the figure) etc., transmission system is by motor (8), pulley concial disk A (7), V belt B (5), decelerator (16), sprocket wheel A (17), sprocket wheel B (3), sprocket wheel C (14), sprocket wheel D (13), sprocket wheel E (9), V belt (6), chain A (15), chain B (11) constitutes, warm-up mill (12) is tangent with passive warm-up mill (2), withdrawing roll (4) is tangent with passive withdrawing roll (1), feeding roller (10) is in the position of warm-up mill (12) and the preceding charging aperture of passive warm-up mill (2), V belt (6) is connected between pulley concial disk A (7) and the pulley concial disk B (5), chain A (15) is connected in sprocket wheel A (17), sprocket wheel B (3), between the sprocket wheel C (14), chain B (11) is connected between sprocket wheel D (13) and the sprocket wheel E (9), sprocket wheel B (3) is coaxial with withdrawing roll (4), sprocket wheel D (13) is coaxial with sprocket wheel C (14) and warm-up mill (12), and chain rivet E (9) is coaxial with feeding roller (10).During coating machine work, feeding roller (10), warm-up mill (12), withdrawing roll (4) rotate along same direction simultaneously, and passive warm-up mill (2), passive withdrawing roll (1) are because of the effect of frictional force, then drive to counter-rotation by warm-up mill (12), withdrawing roll (4), treat that multiple film article reach the required precoating film of multiple film and sent between warm-up mill (12) and the passive warm-up mill (2) by feeding roller (10) simultaneously, through this two rollers heating, roll extrusion, precoating film is being treated on the multiple film article by hot melt, multiple film.Article behind the multiple film are heated roller (12) and send with passive warm-up mill (2), are pulled out by withdrawing roll (4) and passive withdrawing roll (1) again.Shown in Fig. 2,3, warm-up mill (12) is the roll body (18) of cavity, heating (19) formation of passing roll body (18) centre bore with passive warm-up mill (2) by its wall, contain heat-conducting medium (20) in the cavity of roll body (18) wall, here, heating (19) can be the tubular metal electric heater, and heat-conducting medium (20) can be industrial machine oil.In order to improve the quality of multiple film, make more closely to combine between covered film article and the precoating film, also all be with rubber sleeve (21) outside the body (18) usually, as shown in Figure 2 at warm-up mill.

Claims

1, a kind of coating machine, comprise transmission system, feeding roller (10), warm-up mill (12), passive warm-up mill (2), withdrawing roll (4), passive withdrawing roll (1), frame, transmission mechanism drives feeding roller (10), warm-up mill (12), withdrawing roll (3) rotates, warm-up mill (12) then utilizes the friction between itself and the passive warm-up mill (2) to drive passive warm-up mill (2) and rotates, withdrawing roll (3) equally also is to utilize friction between itself and the passive withdrawing roll (12) to drive passive withdrawing roll (1) to rotate, it is characterized in that: warm-up mill (12) is identical with passive warm-up mill (2) structure, by its wall is the roll body (18) of cavity, the heating (19) that passes the roll body centre bore constitutes contain heat-conducting medium (20) in the cavity of roll body (18) wall.

2, coating machine according to claim 1 is characterized in that: be enclosed with one deck silastic material (21) on roll body (18) lateral wall of warm-up mill (12).