Closed paper breaking prevention device of sizing machine

Abstract

The utility model discloses a closed paper breaking prevention device of a sizing machine, which comprises a scraping plate and an air cylinder, the scraping plate is connected with an extension rod, and the output end of the air cylinder is connected with the extension rod; and a flow guide groove is formed below the scraping plate. In practical application, excessive sizing materials generated at the moment when the sizing cross beam is in contact with the paper surface can be scraped away by the scraping plate and finally flow to the sizing material storage tank along with the flow guide groove, so that paper breakage caused by excessive sizing materials generated on paper sheets is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking, in particular to a closed paper breaking prevention device for a sizing machine. Background Art

[0002] In order to improve the strength of the paper sheet, surface sizing agents are added to the surface of the paper sheet during the papermaking process. However, with the increase in vehicle speed and the increase in the amount of sizing, even when the sizing feed flow is stable, it is easy to have too much sizing when the sizing machine crossbeam is closed at the moment of contact with the paper. Due to the large amount of sizing that appears instantly, the post-drying cannot meet the drying requirements, and the sizing on the paper surface will adhere to the post-drying cylinder surface and the calender roller, forming sizing blocks on the cylinder surface and the calender roller surface. When it contacts the paper surface again, the sizing blocks will cause the paper sheet to be squeezed, resulting in paper breaks.

[0003] In view of the above technical problems, the present application proposes a new technical solution, which can avoid the situation of instantaneous excessive glue when closing the glue application beam, thereby avoiding paper breaks. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a closed paper-breaking prevention device for a glue machine, aiming to solve the technical problem of excessive glue being generated instantaneously when the glue beam is closed during the gluing process on the paper surface in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A closed paper-breaking prevention device for a glue applicator comprises a scraper plate and a cylinder. The scraper plate is connected with an extension rod, and the output end of the cylinder is connected with the extension rod. A guide groove is arranged below the scraper plate.

[0007] Furthermore, in the closed paper-breaking prevention device for the glue applicator, the end of the extension rod is rotatably connected to a support rod.

[0008] Furthermore, in the device for preventing paper breakage when closing the glue applicator, the device for preventing paper breakage when closing the glue applicator also includes a cylinder support, and the cylinder support is rotatably connected to the end cover of the cylinder.

[0009] Furthermore, in the closed anti-paper-break device of the sizing machine, the scraper plate includes a first inclined plate, a first horizontal plate and a first vertical plate connected in sequence, and the first inclined plate is arranged obliquely downward; the guide groove includes a second inclined plate, a second horizontal plate and a second vertical plate connected in sequence, and the second vertical plate is arranged obliquely upward.

[0010] Preferably, the scraper board is a rubber board.

[0011] Beneficial effect: The utility model provides a closed anti-paper break device for a glue applicator. Compared with the prior art, by arranging a scraper plate, an extension rod, a cylinder and a guide groove, it can achieve the goal that when the glue beam just touches the paper surface during the glue application process, excessive glue is generated, which will be scraped away by the scraper plate and eventually flow to the glue storage tank along the guide groove, thereby avoiding paper breaks caused by excessive glue on the paper page. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the working principle diagram of the closed anti-paper break device of the glue machine.

[0013] Figure 2 It is a side view of the scraper plate and guide trough. DETAILED DESCRIPTION

[0014] The utility model provides a closed paper-breaking prevention device for a sizing machine. To make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0015] See also Figure 1 and Figure 2 The utility model provides a device for preventing paper breakage when closing a glue machine. The attached drawings are only used to explain the structural principle and are not proportional to the actual product. Figure 1 The arrow in the middle shows the flow direction of the scraped rubber in the guide groove. The attached drawings only show structures related to the invention of this application, and some conventional structures are not specifically shown. The terms "first", "second", etc. described herein are only different names for similar structures for the convenience of explanation, and are not intended to limit this application.

[0016] The closed anti-paper-break device of the glue applicator includes a scraper plate 1 and a cylinder 4. The scraper plate is connected to an extension rod 4, and the output end of the cylinder (i.e., the end of the piston rod of the cylinder) is connected to the extension rod; a guide groove 2 is arranged below the scraper plate, and the cylinder is used to drive the scraper plate and the guide groove to approach or move away from the glue roller 92.

[0017] The end of the extension rod is rotatably connected with a support rod 5. By arranging the support rod, the weight of the scraper plate and the guide groove borne by the cylinder piston rod can be reduced.

[0018] Furthermore, the sizing machine closing and anti-paper breaking device further comprises a cylinder support 49, which is connected to the end cover of the cylinder ( Figure 1 The top of the cylinder is shown as a rotatable connection. The cylinder support is provided to provide a stable support for the cylinder.

[0019] like Figure 2As shown, further, the scraper plate 1 includes a first inclined plate 11, a first horizontal plate 12 and a first vertical plate 13 connected in sequence, and the first inclined plate is arranged obliquely downward; the guide groove includes a second inclined plate 21, a second horizontal plate 22 and a second vertical plate 23 connected in sequence, and the second vertical plate is arranged obliquely upward. This arrangement allows the scraper plate and the guide groove to enclose a cavity, which is convenient for collecting the scraped rubber while scraping the rubber.

[0020] Preferably, the scraper plate is a rubber plate. Since the rubber plate is relatively soft, the roller surface of the glue roller 92 can be prevented from being worn.

[0021] In actual application, the outlet end (bottom end in the figure) of the guide groove is connected to the glue storage tank (not shown in the figure) through a pipe. Before applying glue, the front end of the scraper plate (i.e., the end of the first inclined plate) is attached to the roller surface of the glue roller 92, and then the glue beam 93 is closed. Even if the glue beam produces excessive glue only at the moment of contact with the paper surface, the excess glue will be scraped away by the scraper plate and finally flow to the glue storage tank (not shown in the figure) along the guide groove, thereby avoiding paper breakage caused by excessive glue on the paper sheet 91. The excess glue returns to the glue storage tank and can be reused.

[0022] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and the utility model concept of the utility model, and all these changes or substitutions should fall within the protection scope of the utility model.

Claims

1. A device for preventing paper breakage during closing of a sizing machine, comprising a scraper plate and a cylinder, characterized in that: The scraper plate is connected with an extension rod, and the output end of the cylinder is connected with the extension rod; a guide groove is arranged below the scraper plate.

2. The device for preventing paper breakage when closing the sizing machine according to claim 1, characterized in that: The end of the extension rod is rotatably connected to a support rod.

3. The device for preventing paper breakage when closing the sizing machine according to claim 2, characterized in that: The glue machine closing and paper breaking prevention device also includes a cylinder support, which is rotatably connected to the end cover of the cylinder.

4. The device for preventing paper breakage when closing the sizing machine according to claim 1, characterized in that: The scraper plate includes a first inclined plate, a first horizontal plate and a first vertical plate connected in sequence, and the first inclined plate is arranged obliquely downward; the guide trough includes a second inclined plate, a second horizontal plate and a second vertical plate connected in sequence, and the second vertical plate is arranged obliquely upward.

5. The device for preventing paper breakage when closing the sizing machine according to claim 1, characterized in that: The scraper plate is a rubber plate.

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