Sensing device for controlling paper stabilizing air box and using method

Abstract

The invention relates to the technical field of packaging paper machines, in particular to an induction device for controlling a paper stabilizing air bellow and a using method, and the induction device comprises a circular knife rail cross beam installed on a machine tool, a paper cutting circular knife support connected to the circular knife rail cross beam in a sliding mode and a cutting circular knife connected to the paper cutting circular knife support through a connecting rod rotating shaft; a square hole is machined in one side of the paper cutting circular knife support, and a part of the cutting circular knife penetrates through the square hole of the paper cutting circular knife support and is used for cutting paper. A probe fixing support is arranged on the outer wall of the top end of the circular knife rail cross beam, a contact type inductive probe is fixedly connected to one end of the probe fixing support, a supporting connecting plate is fixedly connected to an extension plate on one side of the paper cutting circular knife support, and a contact connecting plate is arranged at the bottom of the supporting connecting plate; the paper web expanding process is judged through the automatic induction device, manual operation of a rotary knob is replaced, the problem of lag or misoperation caused by manual switching of the paper guiding state is avoided, and operation safety of dry network spare parts is effectively protected.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging paper machines, and in particular to a sensing device for controlling a paper stabilizing bellows and a use method thereof. Background Art

[0002] Paper machines refer to various paper machines, that is, machines for producing and processing household paper and office paper. There are many types of paper machines, which can be divided into paper forming machines and paper processing machines. Among them, paper forming machines include: napkin machines, toilet paper machines, facial tissue machines, mini tissue machines, hand towel machines, non-woven rewinders, square tissue machines, handkerchief machines and packaging paper machines, etc., while paper processing machines include: rewinders, paper cutters, slitting machines, etc. Paper forming machines can only produce perfect household paper when used in conjunction with paper processing machines.

[0003] In recent years, with the changes in market conditions, paper machines have gradually developed towards low grammage and high speed, which has caused a problem of paper machine operation stability: low-grammage paper has poor strength, and is more likely to break under the influence of speed difference tension at high speed. In order to maintain the operation stability of paper machines, many paper mills drill holes in the lower drying cylinders of the drying section and change them into vacuum cylinders, and use paper stabilizers to draw vacuum to provide vacuum in the vacuum cylinders. These paper stabilizers are generally designed with operating side paper feeding areas, which are separated by sealing partitions. In the paper feeding state, the fan of the paper stabilizer runs at a high frequency to collect the vacuum. In the paper guiding area, but in the process of expanding after the paper guiding is completed, as the paper web covers the larger area of ​​the dryer fabric, a very high vacuum degree is generated in the paper guiding area of ​​the paper stabilizer. At this time, if the fan frequency cannot be reduced in time, the dryer fabric will often be adsorbed into the paper stabilizer by the high vacuum. In severe cases, the dryer fabric will be longitudinally worn in the paper guiding partition area. The fan frequency of the paper stabilizer generally needs to be switched on-site during the expansion process. If the operator is not skilled or the operation is delayed, it is easy to cause damage to the dryer fabric spare parts. In view of this, we propose a sensing device for controlling a paper stabilizing bellows and a method for using it. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a sensing device for controlling a paper stabilizing bellows and a method of use, which can effectively solve the problem that the existing mine dust removal equipment does not clean comprehensively, affecting the up and down movement of personnel and mine-related equipment.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The invention provides a sensing device for controlling a paper stabilizing bellows, comprising a circular knife track crossbeam installed on a machine tool, a paper cutting circular knife bracket slidably connected to the circular knife track crossbeam, and a cutting circular knife connected to the paper cutting circular knife bracket through a connecting rod rotating shaft; a square hole is processed on one side of the paper cutting circular knife bracket, and a part of the cutting circular knife passes through the square hole of the paper cutting circular knife bracket for cutting paper; a probe fixing bracket is arranged on the outer wall of the top end of the circular knife track crossbeam, a contact sensing probe is fixedly connected to one end of the probe fixing bracket, a support connecting plate is fixedly connected to an extension plate on one side of the paper cutting circular knife bracket, and a contact connecting plate is arranged at the bottom of the support connecting plate.

[0007] Furthermore, the height of the supporting connecting plate is higher than the height of the contact sensing probe, and the lower part of the contact connecting plate is located at the central axis of the contact sensing probe.

[0008] Furthermore, a placement groove is processed at the bottom of the support connecting plate, the contact connecting plate is slidably connected to the inner wall of the placement groove, a buffer spring is fixedly connected to the inner wall of the placement groove, and one end of the buffer spring is fixedly connected to one side of the contact connecting plate.

[0009] Furthermore, a guide connecting rod is fixedly connected to the inner wall of the placement groove, and the contact connecting plate is slidably connected to the outer wall around the guide connecting rod.

[0010] Furthermore, one end of the probe fixing bracket is fixedly connected to a hollow rod, and the upper and lower inner walls of the hollow rod are fixedly connected to electric guide rails, and a limiting link is slidably connected between the two tracks of the electric guide rails, and one end of the two limiting links is fixedly connected to the same load-bearing link, and a accommodating cavity is machined inside the load-bearing link, and a positioning rod is slidably connected inside the accommodating cavity of the load-bearing link, and one end of the positioning rod is fixedly connected to a support block, and one end of the support block is fixedly connected to a rubber sensing ball, and the rubber sensing ball is used to contact the contact sensing probe.

[0011] Furthermore, a same telescopic spring is fixedly connected between the support block and the load-bearing connecting rod, a receiving rod is fixedly connected to one end of the load-bearing connecting rod, and a sliding block is slidably connected to the guide rail of the electric guide rail.

[0012] Furthermore, a protruding block corresponding to the receiving rod is provided at one end of the contact connecting plate.

[0013] Furthermore, a mounting hole is processed on the inner wall of one side of the support connecting plate, an electric push rod is fixedly installed on the inner wall of the mounting hole, and one end of the contact connecting plate is fixedly connected to the output end of the electric push rod.

[0014] Furthermore, a directional hole is processed inside the connecting rod of the paper cutting circular knife bracket located above the circular knife track crossbeam, and a directional rod is slidably connected inside the directional hole, and one end of the directional rod is fixedly connected to the outer wall of one side of the contact connecting plate.

[0015] A method for extracting a sensing device for controlling a paper stabilizing bellows, comprising:

[0016] S1: Install the probe fixing bracket at the designated position of the circular knife track beam, and install the contact sensing probe on the probe fixing bracket, and set the parameters of the paper cutting circular knife bracket moving on the circular knife track beam, that is, determine the paper cutting position;

[0017] S2: Start the device, and the circular cutting knife cuts the paper. If the paper breaks, it will go to S3, otherwise it will run until the cutting operation is completed;

[0018] S3: In the paper breaking state, after the paper strip is guided, the paper cutting circular knife bracket moves with the cutting circular knife on the circular knife track beam and finally reaches the cutting position. At this time, the contact connecting plate is in contact with the contact sensing probe, and the probe sensing signal is transmitted to the paper machine DCS system. The DCS determines that the paper web has passed the paper guiding area, automatically lowers the frequency of the paper stabilizing fan to a low-frequency operating state, and then enters S2.

[0019] Beneficial Effects

[0020] Compared with the known public technology, the technical solution provided by the present invention has the following beneficial effects:

[0021] The innovation of the present invention is to determine the paper width expansion process by an automatic sensing device, replacing the manual operation knob, avoiding the lag or operation error caused by manual switching of the paper feeding state, and effectively protecting the operation safety of the dryer network spare parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0024] Figure 2 It is a schematic diagram of the side structure of embodiment 1 of the present invention;

[0025] Figure 3 This is a cross-sectional schematic diagram of a supporting connecting plate of Embodiment 2 of the present invention;

[0026] Figure 4 This is a schematic diagram of the overall structure of Embodiment 3 of the present invention;

[0027] Figure 5This is a cross-sectional schematic diagram of a hollow rod in Embodiment 3 of the present invention;

[0028] Figure 6 This is a schematic diagram of the overall structure of Embodiment 4 of the present invention;

[0029] Figure 7 This is a schematic diagram of the explosion structure of the electric push rod according to the fourth embodiment of the present invention.

[0030] Reference numerals

[0031] 1-circular knife track crossbeam; 2-paper cutting circular knife bracket; 3-cutting circular knife; 4-probe fixing bracket; 5-contact sensing probe; 6-support connecting plate; 7-contact connecting plate;

[0032] 10-receiving groove; 11-guide connecting rod; 12-buffer spring;

[0033] 20-hollow rod; 21-receiving rod; 22-bearing connecting rod; 23-limiting connecting rod; 24-electric guide rail; 25-slider; 26-rubber induction ball; 27-support block; 28-telescopic spring; 29-positioning rod

[0034] 30-electric push rod; 31-directional rod; 32-mounting hole; 33-directional hole. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The present invention will be further described below in conjunction with the embodiments.

[0037] Embodiment 1:

[0038] A sensing device for controlling a paper stabilizing bellows, such as Figure 1 , Figure 2As shown, it includes a circular knife track crossbeam 1 installed on a machine tool; a paper cutting circular knife bracket 2 slidably connected to the circular knife track crossbeam 1; and a cutting circular knife 3 connected to the paper cutting circular knife bracket 2 through a connecting rod shaft, one side of the paper cutting circular knife bracket 2 is processed with a square hole, and a part of the cutting circular knife 3 passes through the square hole of the paper cutting circular knife bracket 2 for cutting paper; a probe fixing bracket 4 is provided on the outer wall of the top end of the circular knife track crossbeam 1, one end of the probe fixing bracket 4 is fixedly connected to a contact sensing probe 5, an extension plate on one side of the paper cutting circular knife bracket 2 is fixedly connected to a support connecting plate 6, a contact connecting plate 7 is provided at the bottom of the support connecting plate 6, the height of the support connecting plate 6 is higher than the height of the contact sensing probe 5, and the lower part of the contact connecting plate 7 is located at the central axis of the contact sensing probe 5;

[0039] In this embodiment, in the paper breaking state, after the paper strip is guided, the cutting circular knife 3 begins to expand and move toward the transmission side, and the supporting link plate 6 moves accordingly. When the cutting circular knife 3 moves to the cutting position of the paper, that is, when the contact link plate 7 on the supporting link plate 6 touches the contact sensing probe 5, the probe sensing signal is transmitted to the paper machine DCS system. The DCS determines that the paper web has passed the paper guiding area and automatically adjusts the frequency of the paper stabilizing fan to a low-frequency operating state, thereby avoiding the problem of dryer network wear caused by high vacuum adsorption in the paper guiding area.

[0040] Embodiment 2:

[0041] A sensing device for controlling a paper stabilizing bellows, such as Figure 3 As shown, in order to prevent the supporting connecting plate 6 from exerting a large pressure on the contact sensing probe 5 during the movement, the following improvements are made on the basis of the first embodiment:

[0042] The bottom of the support link plate 6 is processed with a placement groove 10, and the contact link plate 7 is slidably connected to the inner wall of the placement groove 10. The inner wall of the placement groove 10 is fixedly connected with a buffer spring 12, and one end of the buffer spring 12 is fixedly connected to one side of the contact link plate 7; the contact link plate 7 is buffered by the buffer spring 12, so that when the contact link plate 7 contacts the contact sensing probe 5 and the paper cutting circular knife bracket 2 continues to move on the circular knife track crossbeam 1, the contact link plate 7 squeezes the buffer spring 12 to move inward, and the buffer spring 12 contracts, thereby preventing the contact sensing probe 5 from being damaged by irreversible deformation; the inner wall of the placement groove 10 is fixedly connected with a guide connecting rod 11, and the contact link plate 7 is slidably connected to the outer wall around the guide connecting rod 11; while using the guide connecting rod 11 to limit the movement of the contact link plate 7, it is prevented from overturning due to force on the bottom of the contact link plate 7, thereby ensuring the effectiveness of the operation of the device;

[0043] In this embodiment, in the paper breaking state, after the paper strip is guided, the cutting circular knife 3 begins to expand and move toward the transmission side, and the supporting connecting plate 6 moves accordingly. When the cutting position of the paper is too close to the spatial position of the contact sensing probe 5, that is, the cutting circular knife 3 has not moved to the cutting position, the contact connecting plate 7 has already contacted the contact sensing probe 5. At this time, the paper cutting circular knife support 2 continues to move on the circular knife track crossbeam 1, and the contact connecting plate 7 squeezes the buffer spring 12 to move inward, and the buffer spring 12 contracts, thereby preventing the contact sensing probe 5 from being squeezed by the contact connecting plate 7 and causing irreversible deformation.

[0044] Embodiment three:

[0045] A sensing device for controlling a paper stabilizing bellows, such as Figure 4 , Figure 5 As shown, in order to change the paper cutting position to meet the different paper size requirements of manufacturers, the following improvements are made on the basis of the first embodiment:

[0046] One end of the probe fixing bracket 4 is fixedly connected to a hollow rod 20, and the inner walls of the upper and lower sides of the hollow rod 20 are fixedly connected to electric guide rails 24, and a limiting link 23 is slidably connected between the two tracks of the electric guide rail 24, and one end of the two limiting links 23 is fixedly connected to the same load-bearing link 22, and an accommodating cavity is processed inside the load-bearing link 22, and a positioning rod 29 is slidably connected inside the accommodating cavity of the load-bearing link 22, and one end of the positioning rod 29 is fixedly connected to a support block 27, and one end of the support block 27 is fixedly connected to a rubber sensing ball 26, and the rubber sensing ball 26 is used to contact the contact sensing probe 5, and the same telescopic spring 28 is fixedly connected between the support block 27 and the load-bearing link 22, and one end of the load-bearing link 22 is fixedly connected to The connecting rod 21, the guide rail of the electric guide rail 24 is slidably connected with a slider 25; one end of the contact connecting plate 7 is provided with a protrusion corresponding to the connecting rod 21; the mutual contact between the rubber sensing ball 26 and the contact sensing probe 5 has a certain buffering effect, avoiding damage to the contact sensing probe 5, and the telescopic spring 28 further improves the buffering effect while making the load-bearing connecting rod 22 have a reset function, the limit connecting rod 23 moves between the two tracks of the electric guide rail 24 and the positioning rod 29 moves in the accommodating cavity of the load-bearing connecting rod 22, ensuring the stability of the device operation, and the slider 25 moves on the electric guide rail 24 to facilitate the reset of the limit connecting rod 23, avoiding the constant squeezing between the rubber sensing ball 26 and the contact sensing probe 5, resulting in the signal being sent to the DCS system all the time;

[0047] In this embodiment, in the paper breaking state, after the paper strip is guided, the cutting circular knife 3 begins to expand and move toward the transmission side, and the supporting connecting plate 6 moves accordingly. When the cutting position of the paper is a certain distance away from the spatial position of the contact sensing probe 5, that is, the cutting circular knife 3 has moved to the cutting position, and the contact connecting plate 7 has not contacted the contact sensing probe 5. At this time, the protruding block on the contact connecting plate 7 and the receiving rod 21 contact and squeeze each other, so that the bearing connecting rod 22 moves toward the inside of the hollow rod 20. At this time, the limit connecting rod 23 moves between the two tracks of the electric guide rail 24 to ensure that the bearing connecting rod 22 will not flip over, and the telescopic spring 28 contracts and transmits force to the supporting block 27, thereby causing the rubber sensing ball 26 to squeeze the contact sensing probe 5. The probe sensing signal is transmitted to the paper machine DCS system. The DCS determines that the paper web has passed the paper guiding area and automatically adjusts the frequency of the paper stabilizing fan to a low-frequency operation state, thereby avoiding the problem of dry network wear caused by high vacuum adsorption in the paper guiding area.

[0048] Embodiment 4:

[0049] A sensing device for controlling a paper stabilizing bellows, such as Figure 6 , Figure 7 As shown, in order to further expand the requirements of different manufacturers for paper sizes, the following improvements are made on the basis of the first or third embodiment:

[0050] The inner wall of one side of the support connecting plate 6 is processed with a mounting hole 32, and an electric push rod 30 is fixedly installed on the inner wall of the mounting hole 32, and one end of the contact connecting plate 7 is fixedly connected to the output end of the electric push rod 30; the connecting rod in the paper cutting circular knife bracket 2 located above the circular knife track crossbeam 1 is processed with an orientation hole 33 inside, and an orientation rod 31 is slidably connected inside the orientation hole 33, and one end of the orientation rod 31 is fixedly connected to the outer wall of one side of the contact connecting plate 7; the connection between the contact connecting plate 7 and the contact sensing probe 5 is controlled by the electric push rod 30, so that no matter how far the paper cutting position is from the contact sensing probe 5, the connection between the two can be achieved, thereby improving the practicality of the device;

[0051] In this embodiment, in the paper breaking state, after the paper strip is guided, the cutting circular knife 3 begins to expand and move toward the transmission side, and the supporting connecting plate 6 moves accordingly. When the cutting position of the paper is far away from the spatial position of the contact sensing probe 5, the electric push rod 30 pushes the contact connecting plate 7 to move, shortening the distance between the contact connecting plate 7 and the contact sensing probe 5, and finally achieving contact between the two so that the probe sensing signal is transmitted to the paper machine DCS system. The DCS determines that the paper web has passed the paper guiding area and automatically adjusts the frequency of the paper stabilizing fan to a low-frequency operating state, thereby avoiding the problem of dryer network wear caused by high vacuum adsorption in the paper guiding area.

[0052] A method for using a sensing device for controlling a paper stabilizing bellows, comprising:

[0053] S1: Install the probe fixing bracket 4 at the specified position of the circular knife track beam 1, and install the contact sensing probe 5 on the probe fixing bracket 4, set the parameters of the paper cutting circular knife bracket 2 moving on the circular knife track beam 1, that is, determine the paper cutting position;

[0054] S2: Start the device, and the circular cutting knife 3 cuts the paper. When a paper break occurs, the process goes to S3, otherwise, the process runs until the cutting operation is completed;

[0055] S3: In the paper breaking state, after the paper strip is guided, the paper cutting circular knife bracket 2 moves with the cutting circular knife 3 on the circular knife track beam 1 and finally reaches the cutting position. At this time, the contact connecting plate 7 is in contact with the contact sensing probe 5, and the probe sensing signal is transmitted to the paper machine DCS system. The DCS determines that the paper web has passed the paper guiding area, automatically lowers the frequency of the paper stabilizing fan to a low-frequency operating state, and then enters S2.

[0056] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sensing device for controlling a paper stabilizing bellows, characterized in that: include: A circular knife track beam (1) installed on a machine tool, a paper cutting circular knife bracket (2) slidably connected to the circular knife track beam (1), and a cutting circular knife (3) connected to the paper cutting circular knife bracket (2) via a connecting rod rotating shaft; A square hole is processed on one side of the paper cutting circular knife support (2), and a part of the cutting circular knife (3) passes through the square hole of the paper cutting circular knife support (2) for cutting paper; a probe fixing support (4) is arranged on the outer wall of the top end of the circular knife track crossbeam (1), and a contact sensing probe (5) is fixedly connected to one end of the probe fixing support (4); an extension plate on one side of the paper cutting circular knife support (2) is fixedly connected to a supporting connecting plate (6), and a contact connecting plate (7) is arranged at the bottom of the supporting connecting plate (6).

2. The sensing device for controlling a paper stabilizing bellows according to claim 1, characterized in that: The height of the supporting connecting plate (6) is higher than the height of the contact sensing probe (5), and the lower part of the contact connecting plate (7) is located at the central axis of the contact sensing probe (5).

3. The sensing device for controlling a paper stabilizing bellows according to claim 2, characterized in that: The bottom of the support connecting plate (6) is processed with a placement groove (10), the contact connecting plate (7) is slidably connected to the inner wall of the placement groove (10), the inner wall of the placement groove (10) is fixedly connected with a buffer spring (12), and one end of the buffer spring (12) is fixedly connected to one side of the contact connecting plate (7).

4. The sensing device for controlling a paper stabilizing bellows according to claim 3, characterized in that: The inner wall of the placement groove (10) is fixedly connected with a guide connecting rod (11), and the contact connecting plate (7) is slidably connected to the outer wall around the guide connecting rod (11).

5. The sensing device for controlling a paper stabilizing bellows according to claim 2, characterized in that: One end of the probe fixing bracket (4) is fixedly connected to a hollow rod (20), and the inner walls on the upper and lower sides of the hollow rod (20) are fixedly connected to electric guide rails (24), and a limit link (23) is slidably connected between the two tracks of the electric guide rail (24), and one end of the two limit links (23) is fixedly connected to the same bearing link (22), and a receiving cavity is processed inside the bearing link (22), and a positioning rod (29) is slidably connected inside the receiving cavity of the bearing link (22), and one end of the positioning rod (29) is fixedly connected to a support block (27), and one end of the support block (27) is fixedly connected to a rubber sensing ball (26), and the rubber sensing ball (26) is used to contact the contact sensing probe (5).

6. The sensing device for controlling a paper stabilizing bellows according to claim 5, characterized in that: A same telescopic spring (28) is fixedly connected between the support block (27) and the load-bearing connecting rod (22); one end of the load-bearing connecting rod (22) is fixedly connected to a receiving rod (21); and a slider (25) is slidably connected to the guide rail of the electric guide rail (24).

7. The sensing device for controlling a paper stabilizing bellows according to claim 6, characterized in that: One end of the contact connecting plate (7) is provided with a protruding block corresponding to the receiving rod (21).

8. The sensing device for controlling a paper stabilizing bellows according to claim 7, characterized in that: A mounting hole (32) is processed on the inner wall of one side of the support connecting plate (6), an electric push rod (30) is fixedly mounted on the inner wall of the mounting hole (32), and one end of the contact connecting plate (7) is fixedly connected to the output end of the electric push rod (30).

9. The sensing device for controlling a paper stabilizing bellows according to claim 8, characterized in that: A directional hole (33) is machined inside the connecting rod of the paper cutting circular knife support (2) located above the circular knife track crossbeam (1), a directional rod (31) is slidably connected inside the directional hole (33), and one end of the directional rod (31) is fixedly connected to the outer wall of one side of the contact connecting plate (7).

10. A method for using a sensing device for controlling a paper stabilizing bellows, applied to a sensing device for controlling a paper stabilizing bellows as claimed in any one of claims 1 to 9, characterized in that: include: S1: Install the probe fixing bracket (4) at a designated position of the circular knife track beam (1), and install the contact sensing probe (5) on the probe fixing bracket (4), and set the parameters of the movement of the paper cutting circular knife bracket (2) on the circular knife track beam (1), that is, determine the paper cutting position; S2: Start the device, and the cutting circular knife (3) cuts the paper. If a paper break occurs, the process goes to S3, otherwise the process runs until the cutting operation is completed; S3: In the paper breaking state, after the paper strip is guided, the paper cutting circular knife support (2) moves with the cutting circular knife (3) on the circular knife track crossbeam (1) and finally reaches the cutting position. At this time, the contact connecting plate (7) is in contact with the contact sensing probe (5), and the probe sensing signal is transmitted to the paper machine DCS system. The DCS determines that the paper web has passed the paper guiding area, automatically lowers the frequency of the paper stabilizing fan to a low-frequency operating state, and then enters S2.

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