Spray transfer sizing system

Abstract

The utility model discloses a spray transfer sizing system which comprises a sizing module, a glue supply module, a gas supply module and a recovery module, the sizing module comprises a support and a glue spraying cross beam, the glue spraying cross beam is connected with the support through a moving mechanism, the glue spraying cross beam is provided with a cavity facing a sizing roller, and a plurality of glue spraying nozzles are arranged in the cavity. Sealing plates are arranged on the upper side and the lower side of the glue spraying cross beam respectively, the glue supply module is used for supplying glue to the multiple glue spraying nozzles, the gas supply module is used for supplying gas to the multiple glue spraying nozzles, the recovery module comprises a recovery tank and a suction pump, the recovery tank is connected with the cavity, and the suction pump is used for generating negative pressure in the recovery tank to recover redundant glue in the cavity; during sizing, the water content of paper is controlled and the use of glue and steam is effectively reduced by controlling the amount of glue sprayed by the nozzle and the sizing amount of the sizing roller, and the splashed glue and a small amount of redundant glue flow into the recycling tank to be temporarily stored, so that the cleanliness of the system is not polluted, and the efficient utilization of the glue is realized.

Description

Technical Field

[0001] This utility model relates to the field of papermaking technology, specifically to a spray transfer sizing system. Background Technology

[0002] Sizing is a process in which sizing agents are added to the pulp or coated onto the surface of paper and paperboard to enhance their resistance to water penetration and diffusion.

[0003] Currently, there are two main sizing methods in paper machines: one is the immersion method, which involves adding a large amount of glue to the intersection of two sizing rollers. The paper that needs to be sizing passes through this point, essentially immersing it in the glue, thus achieving the purpose of sizing. This method uses a large amount of glue and is suitable for paper that requires a large amount of sizing. However, the moisture content of the paper will increase again after sizing, which requires the drying cylinder after the sizing machine to maintain a certain air supply to dry the paper again. This, to some extent, increases the consumption of glue and steam, and at the same time increases the cost and energy of the paper mill.

[0004] Another method is the film transfer metering rod type. In this method, the sizing system delivers the glue to the spray box, from where it flows into the sizing area. The glue is then evenly distributed laterally onto the sizing roller by the metering rod. The metering rod controls the amount of glue to form a glue layer of a certain thickness on the sizing roller. Excess glue is returned to the feed trough through the return system. Compared to the immersion method, this method can better control the amount of glue applied, ensuring consistent paper moisture content, reducing glue waste, and lowering steam consumption in the drying cylinder behind the sizing machine. However, the metering rod is a consumable part. If the metering rod malfunctions, it can lead to unstable sizing, inconsistent moisture content across the entire sheet, and easy sheet breakage. Therefore, the metering rod needs to be replaced regularly, and it needs to be imported, which is expensive.

[0005] Based on the above analysis, this utility model proposes a spray transfer adhesive application system that can solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a spray transfer application system to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a spray transfer application system, comprising:

[0008] The glue application module includes a support and a glue spraying beam. The glue spraying beam is connected to the support via a moving mechanism. The glue spraying beam has a cavity facing the glue application roller. A plurality of glue spraying nozzles are provided in the cavity, and sealing plates are respectively provided on the upper and lower sides of the glue spraying beam.

[0009] A glue supply module is used to supply glue to a plurality of the glue nozzles;

[0010] An air supply module is used to supply air to several of the glue spray nozzles;

[0011] The recycling module includes a recycling tank and a suction pump. The recycling tank is connected to the cavity, and the suction pump is used to generate negative pressure in the recycling tank to recycle excess adhesive in the cavity.

[0012] As a preferred technical solution, the sealing plate is hinged to the adhesive spraying beam via a movable plate, and a first cylinder is installed on the adhesive spraying beam. The first cylinder is used to drive the movable plate to pivot the sealing plate.

[0013] As a preferred technical solution, the moving mechanism includes a second cylinder mounted on the bracket and a support block disposed on the adhesive spraying beam, wherein the movable rod of the second cylinder is connected to the support block.

[0014] As a preferred technical solution, the support block is slidably connected to the bracket.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] During sizing, the amount of glue sprayed from the nozzle and the amount of glue applied by the sizing roller are controlled to control the moisture content of the paper, effectively reducing the use of glue and steam. The splashed glue and a small amount of excess glue are temporarily stored in the recycling tank, which does not contaminate the cleanliness of the system and achieves efficient use of glue. Furthermore, the absence of a metering rod, a consumable part, eliminates the need for regular replacement, thus reducing production costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the adhesive application module structure of this utility model. Figure 1 ;

[0019] Figure 3 This is a schematic diagram of the adhesive application module structure of this utility model. Figure 2 ;

[0020] Figure 4 This is a schematic diagram of the recycling module structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the gas supply module structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the adhesive supply module structure of this utility model;

[0023] In the diagram: 10. Glue application module; 11. Support frame; 12. Glue spraying beam; 13. Glue spraying nozzle; 14. Sealing plate; 141. Movable plate; 142. First cylinder; 15. Moving mechanism; 151. Second cylinder; 152. Support block; 20. Glue supply module; 21. Glue storage tank; 30. Air supply module; 31. Air compressor; 40. Recycling module; 41. Recycling tank; 42. Suction pump; 50. Glue application roller. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6

[0026] Implementation 1 provides a spray transfer application system:

[0027] The glue application module 10 includes a bracket 11 and a glue spraying beam 12. The glue spraying beam 12 has a cavity facing the glue application roller 50. Several glue spraying nozzles 13 are provided in the cavity. Sealing plates 14 are respectively provided on the upper and lower sides of the glue spraying beam 12. The sealing plates 14 extend towards the glue application roller 50, so that the sprayed glue is not easy to leak out.

[0028] The glue supply module 20 is used to supply glue to several glue nozzles 13, and the air supply module 30 is used to supply air to several glue nozzles 13. The glue supply module 20 includes a glue storage tank 21 connected to the glue pool. The glue is transported to the glue storage tank 21 for storage and use. The glue in the glue storage tank 21 is transported to several glue nozzles 13. The amount of glue supplied can be controlled by adjusting the size of the valve cavity and the glue spraying pressure by a stepper motor or manually. The air supply module 30 includes an air compressor 31, which supplies air to several nozzles to make the sprayed glue atomized more finely and dispersed, thereby better and more evenly spraying the glue onto the glue application roller 50.

[0029] The recycling module 40 includes a recycling tank 41 and a suction pump 42. The recycling tank 41 is connected to the cavity, and the suction pump 42 is used to generate negative pressure in the recycling tank 41 to recycle excess adhesive in the cavity.

[0030] Implementation 2 provides a spray transfer application system:

[0031] The glue application module 10 includes a bracket 11 and a glue spraying beam 12. The glue spraying beam 12 has a cavity facing the glue application roller 50. Several glue spraying nozzles 13 are provided in the cavity. Sealing plates 14 are respectively provided on the upper and lower sides of the glue spraying beam 12. The sealing plates 14 extend towards the glue application roller 50, so that the sprayed glue is not easy to leak out.

[0032] The glue spraying beam 12 is connected to the bracket 11 via a moving mechanism 15. The moving mechanism 15 includes a second cylinder 151 mounted on the bracket 11 and a support block 152 mounted on the glue spraying beam 12. The movable rod of the second cylinder 151 is connected to the support block 152, and the support block 152 is slidably connected to the bracket 11. The relative position of the beam and the glue application roller 50 can be adjusted via the moving mechanism 15, which also facilitates the replacement, cleaning, and maintenance of the glue application roller 50.

[0033] The glue supply module 20 is used to supply glue to several glue nozzles 13, and the air supply module 30 is used to supply air to several glue nozzles 13. The glue supply module 20 includes a glue storage tank 21 connected to the glue pool. The glue is transported to the glue storage tank 21 for storage and use. The glue in the glue storage tank 21 is transported to several glue nozzles 13. The amount of glue supplied can be controlled by adjusting the size of the valve cavity and the glue spraying pressure by a stepper motor or manually. The air supply module 30 includes an air compressor 31, which supplies air to several nozzles to make the sprayed glue atomized more finely and dispersed, thereby better and more evenly spraying the glue onto the glue application roller 50.

[0034] The recycling module 40 includes a recycling tank 41 and a suction pump 42. The recycling tank 41 is connected to the cavity, and the suction pump 42 is used to generate negative pressure in the recycling tank 41 to recycle excess adhesive in the cavity.

[0035] Implementation 3 provides a spray transfer application system:

[0036] The glue application module 10 includes a bracket 11 and a glue spraying beam 12. The glue spraying beam 12 has a cavity facing the glue application roller 50. Several glue spraying nozzles 13 are provided in the cavity. Sealing plates 14 are respectively provided on the upper and lower sides of the glue spraying beam 12. The sealing plates 14 extend towards the glue application roller 50, so that the sprayed glue is not easy to leak out.

[0037] The glue supply module 20 is used to supply glue to several glue nozzles 13, and the air supply module 30 is used to supply air to several glue nozzles 13. The glue supply module 20 includes a glue storage tank 21 connected to the glue pool. The glue is transported to the glue storage tank 21 for storage and use. The glue in the glue storage tank 21 is transported to several glue nozzles 13. The amount of glue supplied can be controlled by adjusting the size of the valve cavity and the glue spraying pressure by a stepper motor or manually. The air supply module 30 includes an air compressor 31, which supplies air to several nozzles to make the sprayed glue atomized more finely and dispersed, thereby better and more evenly spraying the glue onto the glue application roller 50.

[0038] The recycling module 40 includes a recycling tank 41 and a suction pump 42. The recycling tank 41 is connected to the cavity, and the suction pump 42 is used to generate negative pressure in the recycling tank 41 to recycle excess adhesive in the cavity.

[0039] The sealing plate 14 is hinged to the glue spraying beam 12 via the movable plate 141. The glue spraying beam 12 is equipped with a first cylinder 142, which is used to drive the movable plate 141 to rotate the sealing plate 14. By controlling the rotation of the sealing plate 14, the side edge is brought closer to or away from the glue application roller 50, thereby controlling the amount of glue applied by the glue application roller 50. Excess glue can be scraped into the cavity for recycling.

[0040] During sizing, the amount of glue sprayed from the nozzle and the amount of glue applied by the sizing roller 50 are controlled to control the moisture content of the paper, effectively reducing the use of glue and steam. The splashed glue and a small amount of excess glue are temporarily stored in the recycling tank, which does not contaminate the cleanliness of the system and achieves efficient utilization of glue. Furthermore, the absence of a metering rod, a consumable part, eliminates the need for regular replacement, thus reducing production costs.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spray transfer sizing system characterized by, The application relates to a glue spraying device, which comprises the following parts: a glue spraying module (10) comprising a support (11) and a glue spraying beam (12), wherein the glue spraying beam (12) is connected with the support (11) through a moving mechanism (15), the glue spraying beam (12) has a cavity facing a glue roller (50), a plurality of glue spraying nozzles (13) are arranged in the cavity, and sealing plates (14) are arranged on the upper and lower sides of the glue spraying beam (12) respectively; a glue supply module (20) for supplying glue liquid to the glue spraying nozzles (13); an air supply module (30) for supplying air to the glue spraying nozzles (13); a recovery module (40) comprising a recovery tank (41) and a suction pump (42), wherein the recovery tank (41) is connected with the cavity, and the suction pump (42) is used for generating negative pressure in the recovery tank (41) to recover the excess glue liquid in the cavity.

2. A spray transfer sizing system according to claim 1 wherein, The sealing plates (14) are hinged with the glue spraying beam (12) through movable plates (141), a first cylinder body (142) is arranged on the glue spraying beam (12), and the first cylinder body (142) is used for driving the movable plates (141) to pivot the sealing plates (14).

3. A spray transfer sizing system according to claim 1, wherein The moving mechanism (15) comprises a second cylinder body (151) arranged on the support (11) and a supporting block (152) arranged on the glue spraying beam (12), and a movable rod of the second cylinder body (151) is connected with the supporting block (152).

4. A spray transfer sizing system according to claim 3, wherein, The supporting block (152) is slidably connected with the support (11).

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