Closed scraper gluing mechanism

Abstract

The utility model discloses a closed scraper gluing mechanism which comprises a glue inlet pipe, a glue return pipe, an upper scraper, a lower scraper and a glue storage bin, one end of the glue inlet pipe and one end of the glue return pipe are connected with the glue storage bin, the other end of the glue inlet pipe and the other end of the glue return pipe are connected with a glue storage barrel, and the upper scraper and the lower scraper are symmetrically installed at the front end of the glue storage bin. The upper scraper and the lower scraper are in contact with the outer wall of the anilox roller to seal the adhesive in the storage bin, and an adhesive pressing roller is arranged above the anilox roller. A protective cover is arranged between the lower scraper and the glue pressing roller and matched with the outer contour of the anilox roller, and regulating valves are arranged on the glue inlet pipe and the glue return pipe. Compared with the prior art, the utility model has the beneficial effects that the adhesive circulating system is controlled in a closed loop through the closed scraper, so that the evaporation of a solvent is prevented, and the tackifying is controlled within the minimum limit. And rotation of the gravure anilox roller is covered as much as possible, solvent evaporation on the surface of the gravure roller is controlled, and the problem of plate drying is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the field of dry type compound machines, in particular to a closed scraper gluing mechanism of a dry type compound machine. Background Art

[0002] The gravure coating method is a method of transferring the adhesive from the gravure roller to the offset roller (rubber roller), and then transferring it from the offset roller to the substrate. Compared with the direct etching gravure method, the adhesive is in contact with the atmosphere for a longer time before being transferred from the gravure roller to the substrate due to the intervention of the offset roller. If the contact time with the atmosphere is prolonged, additional solvent will evaporate, the viscosity of the adhesive will change drastically, and the management of the coating amount will become increasingly difficult.

[0003] In addition, the offset roller begins to cool down gradually due to heat absorption by evaporation. If the indoor humidity is high, moisture in the air will enter the adhesive, causing problems with product quality. Utility Model Content

[0004] In view of the above-mentioned defects of the prior art, the utility model provides a closed scraper gluing mechanism, which controls the circulation system of the adhesive in a closed loop, prevents the solvent in the adhesive from evaporating, and controls the viscosity within the minimum usage limit.

[0005] The utility model is implemented as follows: a closed scraper gluing mechanism comprises a glue feed pipe, a glue return pipe, an upper scraper, a lower scraper and a glue storage bin, one end of the glue feed pipe and one end of the glue return pipe are connected to the glue storage bin, the other end of the glue feed pipe and the other end of the glue return pipe are connected to the glue storage barrel, an upper scraper and a lower scraper are symmetrically installed at the front end of the glue storage bin, the upper scraper and the lower scraper are in contact with the outer wall of the anilox roller to seal the adhesive in the storage bin, and a glue pressing roller is provided above the anilox roller.

[0006] Furthermore, a protective cover is provided between the lower scraper and the rubber pressing roller and in coordination with the outer contour of the anilox roller. The anilox roller is mostly enclosed by the protective cover, which effectively prevents the evaporation of the solvent on the surface of the gravure anilox roller. Since the evaporation of the solvent on the surface of the gravure roller is controlled, the drying of the gravure anilox roller and the evaporation of the solvent are effectively prevented.

[0007] Furthermore, the rubber inlet pipe and the rubber return pipe are both provided with regulating valves.

[0008] Compared with the prior art, the utility model has the following beneficial effects: the closed scraper controls the circulation system of the adhesive in a closed loop, prevents the evaporation of the solvent, and controls the viscosity increase to a minimum. In addition, the rotation of the gravure anilox roller is covered as much as possible, the evaporation of the solvent on the surface of the gravure roller is controlled, and the plate drying problem is effectively prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0010] Figure 1 It is a structural diagram of a closed scraper gluing mechanism.

[0011] In the figure: 1. Glue return hose; 2. Glue inlet hose; 3. Glue storage bin; 4. Lower scraper; 5. Upper scraper; 6. Anilox roller; 7. Glue pressing roller; 8. Base film; 9. Regulating valve; 10. Protective cover; 11. Glue storage barrel. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0013] like Figure 1 As shown, a closed scraper gluing mechanism comprises a glue inlet pipe 2, a glue return pipe 1, an upper scraper 5, a lower scraper 4 and a glue storage bin 3, one end of the glue inlet pipe and one end of the glue return pipe are connected to the glue storage bin 3, the other end of the glue inlet pipe and the other end of the glue return pipe are connected to the glue storage barrel 11, the upper scraper 5 and the lower scraper 4 are symmetrically installed at the front end of the glue storage bin 3, the upper scraper 5 and the lower scraper 4 are in contact with the outer wall of the anilox roller 6 to seal the adhesive in the storage bin 3, the adhesive enters the gluing place from the glue inlet pipe, the upper scraper scrapes off the excess adhesive, the function of the lower scraper is to prevent the adhesive from leaking, and finally the adhesive returns to the glue storage barrel 11 from the glue return pipe, and finally the substrate film 8 is coated with glue through the anilox roller 6 and the glue pressing roller 7.

[0014] A rubber pressing roller 7 is provided above the anilox roller 6. A regulating valve 9 is provided on the rubber inlet pipe and the rubber return pipe. A protective cover 10 is provided between the lower scraper and the rubber pressing roller and in accordance with the outer contour of the anilox roller. The anilox roller is mostly enclosed by the protective cover 10, which effectively prevents the evaporation of the solvent on the surface of the gravure anilox roller. Since the evaporation of the solvent on the surface of the gravure roller is controlled, the drying of the gravure anilox roller and the evaporation of the solvent are effectively prevented.

[0015] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A closed scraper gluing mechanism, It is characterized in that It includes a glue inlet pipe, a glue return pipe, an upper scraper, a lower scraper and a glue storage bin, one end of the glue inlet pipe and one end of the glue return pipe are connected to the glue storage bin, the other end of the glue inlet pipe and the other end of the glue return pipe are connected to the glue storage barrel, an upper scraper and a lower scraper are symmetrically installed at the front end of the glue storage bin, the upper scraper and the lower scraper are in contact with the outer wall of the anilox roller to seal the adhesive in the storage bin, and a glue pressing roller is provided above the anilox roller.

2. The closed scraper gluing mechanism according to claim 1, It is characterized in that A protective cover is provided between the lower scraper and the rubber pressing roller and matches the outer contour of the anilox roller.

3. The closed scraper gluing mechanism according to claim 1, It is characterized in that The rubber inlet pipe and the rubber return pipe are both provided with regulating valves.

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