Paper breaking detection system for high-speed paper machine

Abstract

The utility model belongs to the technical field of printing detection, and relates to a broken paper detection system for a high-speed paper machine, which comprises a flat plate and a correlation optical fiber detector mounted on the flat plate, the correlation optical fiber detector adopts an FT10A detector and comprises a transmitting end and a receiving end, the flat plate comprises an upper plate and a lower plate, the lower plate is detachably connected with the upper plate, and the transmitting end is connected with the receiving end. The transmitting end is connected with the upper plate, the receiving end is connected with the lower plate, the receiving end corresponds to the transmitting end, a power line is connected between the receiving end and the transmitting end, the power line is sleeved with a spring, the two side walls of the lower plate are provided with a first guide roller and a second guide roller respectively, and the first guide roller and the second guide roller can abut against paper. A cleaning assembly is arranged on the outer wall of the first guide roller; compared with the prior art, the paper cleaning device is high in strength, resistant to high temperature, resistant to corrosion and long in service life, further, the cleaning assembly can adsorb paper scraps on paper, and cleanliness of the surface of the paper is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of printing detection, and more specifically, to a paper break detection system for a high-speed paper machine. Background Art

[0002] Paper break signals are usually used to indicate the paper machine's paper discharge or paper break status, to determine whether the paper machine is producing normally, or to perform related interlocking. In the normal production of a paper machine, it is important to detect paper break conditions in the press section and the dryer section.

[0003] For example, the authorization announcement number CN209718166U discloses a paper break detection device for a printing press, which performs real-time detection by setting a detection device at each place where the paper passes and turns, so that when a paper break occurs, it can be discovered in time and the machine can be shut down for processing, thereby effectively monitoring the paper break and improving production efficiency. In the utility model, a support frame is set to make the detection device easy to install and recycle and simple and convenient to adjust. In the utility model, a clamping block is set between the first adjustment rod and the second adjustment rod to make the support more stable.

[0004] However, due to the poor on-site environment of the printing press, for example, in the pressing section, the detector is often interfered by pulp and water vapor; in the drying section, it is often interfered by paper dust, paper shreds, etc. These interference factors will affect the normal work of paper break detection, resulting in erroneous judgments. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model aims to provide a paper break detection system for a high-speed paper machine which can avoid environmental interference.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A paper break detection system for a high-speed paper machine includes a flat plate and a through-beam optical fiber detector mounted on the flat plate. The through-beam optical fiber detector adopts an FT10A detector. The through-beam optical fiber detector includes a transmitting end and a receiving end.

[0008] The flat plate includes an upper plate and a lower plate, the lower plate is detachably connected to the upper plate, the transmitting end is connected to the upper plate, the receiving end is connected to the lower plate, and the receiving end is arranged corresponding to the transmitting end, a power line is connected between the receiving end and the transmitting end, and a spring is arranged on the outer jacket of the power line.

[0009] The two side walls of the lower plate are respectively provided with a first guide roller and a second guide roller, both of which can contact with the paper, and the outer wall of the first guide roller is provided with a cleaning component.

[0010] The utility model is further configured as follows: the cleaning component includes an electrostatic generator, a scraper and an adsorption strip, the scraper is provided with a groove for placing the adsorption strip, the adsorption strip is interference-connected with the groove, and the electrostatic generator is electrically connected with the adsorption strip.

[0011] The utility model is further configured as follows: the first guiding roller comprises a main body and a mounting block, the main body is fixedly connected with a mounting rod, the mounting block is disposed on the outer wall of the lower plate, the scraper is disposed on the outer wall of the main body, and the scraper is inclined relative to the main body.

[0012] The utility model is further configured as follows: the second guide roller is arranged opposite to the first guide roller, the second guide roller comprises a connecting rod and a roller body, there are two connecting rods, the connecting rods are connected to the side wall of the upper plate, and the roller body is placed between the two connecting rods.

[0013] The utility model is further configured as follows: two connecting rods are provided on the end surface of the lower plate, a sliding groove is opened on the connecting rod, an insertion rod for inserting into the sliding groove is provided on the upper plate, a plurality of connecting holes are opened on the insertion rod, a plurality of docking holes are opened on the connecting rod corresponding to the connecting holes, and the connecting rod and the insertion rod are connected by screws.

[0014] Compared with the shortcomings of the prior art, the beneficial effects of the utility model are:

[0015] The FT10A detector can be used to detect the passage or presence of paper and give a switch signal. Due to the use of high temperature resistant optical fiber, the front optical lens can be directly placed in a high temperature place, so the equipment does not need to use a cooling device. Without a water cooling system, it can work normally at an ambient temperature of up to 200 degrees Celsius. It has high strength, high temperature resistance, corrosion resistance, and long service life. Furthermore, the cleaning component can absorb the paper scraps on the paper to ensure the cleanliness of the paper surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the first guide roller according to an embodiment of the utility model.

[0018] Upper plate 1, lower plate 2, transmitting end 3, receiving end 4, spring 5, first guide roller 6, second guide roller 7, electrostatic generator 8, scraper 9, adsorption strip 10, main body 11, mounting block 12, mounting rod 13, connecting rod 14, slide groove 15, and insertion rod 16. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0021] like Figure 1 to Figure 2 As shown,

[0022] A paper break detection system for a high-speed paper machine includes a flat plate and a through-beam optical fiber detector installed on the flat plate. The through-beam optical fiber detector adopts a FT10A detector. The through-beam optical fiber detector includes a transmitting end 3 and a receiving end 4.

[0023] The flat plate includes an upper plate 1 and a lower plate 2, and the paper passes between the upper plate 1 and the lower plate 2. The lower plate 2 is detachably connected to the upper plate 1. Two connecting rods 14 are provided on the end surface of the lower plate 2. A slide groove 15 is provided on the connecting rod 14. An insertion rod 16 for inserting into the slide groove 15 is provided on the upper plate 1. The insertion rod 16 is provided with a plurality of connecting holes. The connecting rod 14 is provided with a plurality of docking holes corresponding to the connecting holes. The connecting rod 14 is connected to the insertion rod 16 by screws. The distance between the upper plate 1 and the lower plate 2 is adjusted by changing the connection position of the connecting rod 14 and the insertion rod 16, thereby increasing the mobility of its operation.

[0024] The transmitting end 3 is connected to the upper plate 1, the receiving end 4 is connected to the lower plate 2, and the receiving end 4 is arranged corresponding to the transmitting end 3. A power line is connected between the receiving end 4 and the transmitting end 3, and a spring 5 is arranged on the outer jacket of the power line.

[0025] The first guide roller 6 and the second guide roller 7 are respectively provided on the two side walls of the lower plate 2. Both the first guide roller 6 and the second guide roller 7 can contact with the paper. The first guide roller includes a main body 11 and a mounting block 12. The main body 11 is fixedly connected with a mounting rod 13. The mounting block 12 is placed on the outer wall of the lower plate 2. The second guide roller 7 is arranged opposite to the first guide roller 6. The second guide roller 7 includes a connecting rod 14 and a roller body. There are two connecting rods 14. The connecting rods 14 are connected to the side wall of the upper plate 1. The roller body is placed between the two connecting rods 14. The roller body is mounted on the upper plate 1 through the connecting rod 14.

[0026] A cleaning assembly is provided on the outer wall of the first guide roller 6, and the cleaning assembly includes an electrostatic generator 8, a scraper 9 and an adsorption strip 10. A groove for placing the adsorption strip 10 is provided on the scraper 9, and the adsorption strip 10 is interference-connected with the groove. The electrostatic generator 8 is electrically connected to the adsorption strip 10. The scraper 9 is placed on the outer wall of the main body 11, and the scraper 9 is inclined relative to the main body 11. The inclined scraper 9 can better contact with the passing paper, and the paper scraps on the paper can be adsorbed into the groove. The scraper 9 can be cleaned by pulling the adsorption strip 10 out of the groove.

[0027] Working principle: When the distance between the receiving end 4 and the transmitting end 3 needs to be adjusted, the distance between the upper plate 1 and the lower plate 2 is adjusted by changing the connection position of the connecting rod 14 and the insertion rod 16. When the paper passes through the first guide roller 6, the paper contacts the scraper 9. At the same time, the electrostatic generator 8 starts to work, and the adsorption strip 10 is charged with static electricity to adsorb the paper scraps on the passing paper and clean it up.

[0028] When the light intensity from the transmitting end 3 is weakened or cannot be emitted due to a fault, it will send out an alarm signal. First, there is a 5-point light intensity indicator on the amplifier of the receiving end 4, which is used to indicate the intensity of the received light. It can be used to check the received light intensity at any time and can also be used for initial debugging of the optical axis. The amplifier of the receiving end 4 has a "safety alarm output" and will output an alarm signal when the received light intensity is insufficient.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any common changes and substitutions made by those skilled in the art within the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A paper break detection system for a high-speed paper machine, comprising a flat plate and a through-beam optical fiber detector mounted on the flat plate, characterized in that: The optical fiber detector is a FT10A detector. The optical fiber detector comprises a transmitting end (3) and a receiving end (4). The flat plate comprises an upper plate (1) and a lower plate (2), the lower plate (2) being detachably connected to the upper plate (1), a transmitting end (3) being connected to the upper plate (1), a receiving end (4) being connected to the lower plate (2), and the receiving end (4) being arranged corresponding to the transmitting end (3), a power cord being connected between the receiving end (4) and the transmitting end (3), and a spring (5) being arranged on the outer jacket of the power cord. A first guide roller (6) and a second guide roller (7) are respectively provided on the two side walls of the lower plate (2); both the first guide roller (6) and the second guide roller (7) can contact with the paper; and a cleaning component is provided on the outer wall of the first guide roller (6).

2. A paper break detection system for a high-speed paper machine according to claim 1, characterized in that: The cleaning component comprises an electrostatic generator (8), a scraper (9) and an adsorption strip (10); the scraper (9) is provided with a groove for placing the adsorption strip (10); the adsorption strip (10) is interference-connected with the groove; and the electrostatic generator (8) is electrically connected to the adsorption strip (10).

3. The paper break detection system for a high-speed paper machine according to claim 2, characterized in that: The first guide roller comprises a main body (11) and a mounting block (12); the main body (11) is fixedly connected to a mounting rod (13); the mounting block (12) is disposed on the outer wall of the lower plate (2); the scraper (9) is disposed on the outer wall of the main body (11); and the scraper (9) is inclined relative to the main body (11).

4. The paper break detection system for a high-speed paper machine according to claim 3, characterized in that: The second guide roller (7) is arranged opposite to the first guide roller (6), and the second guide roller (7) comprises a connecting rod (14) and a roller body, wherein the connecting rod (14) has two connecting rods (14), the connecting rods (14) are connected to the side wall of the upper plate (1), and the roller body is arranged between the two connecting rods (14).

5. The paper break detection system for a high-speed paper machine according to claim 4, characterized in that: The end surface of the lower plate (2) is provided with two connecting rods (14), the connecting rods (14) are provided with sliding grooves (15), the upper plate (1) is provided with an insertion rod (16) for inserting into the sliding grooves (15), the insertion rod (16) is provided with a plurality of connecting holes, the connecting rod (14) is provided with a plurality of docking holes corresponding to the connecting holes, and the connecting rod (14) is connected to the insertion rod (16) by screws.

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