Paper machine net changing device for clean papermaking

Abstract

The utility model provides a papermaking machine net changing device for clean papermaking, and relates to the technical field of papermaking machines, the papermaking machine net changing device comprises a seat plate, a support and a baffle, the support is connected to one end of the seat plate, the baffle is connected to one end of the support, support rods are rotatably arranged on two sides in the baffle, one end of each support rod extends to the inner side of the seat plate, and the other end of each support rod extends to the inner side of the seat plate. Supporting seats are arranged on the two sides of the top of the seat plate, and arc grooves are formed in the tops of the supporting seats. The supporting seat is matched with the buckle to fix the bearing ring, so that the central shaft is positioned, the net cylinder is convenient to rotate and use, when the net cylinder needs to be replaced, the driving piece drives the buckle to be opened, the supporting rod rotates, one end supports the idler wheel from the lower portion, the central shaft is jacked away from the supporting seat, and then the net cylinder can be replaced through the inclination angle of the supporting rod and rotation of the idler wheel. The center shaft and the net cylinder can rotate to one end of the supporting rod and are blocked and limited by the baffle, the net cylinder does not need to be lifted manually in the whole process, automation is achieved, and more convenience is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking machines, in particular to a papermaking machine screen changing device for clean papermaking. Background Art

[0002] Clean papermaking machine refers to a complete set of equipment from raw material preparation, pulping, papermaking to finished rolls or flat sheets of paper, which is achieved through optimized design and the use of advanced technology in the entire papermaking process with the goal of reducing environmental pollution and resource consumption. These equipment include material preparation equipment (such as grass cutters, digesters, wood grinders, etc.), pulping equipment (such as hot grinders, pulp washers, pulp bleaching machines, etc.), and papermaking machine bodies (such as headboxes, wire sections, press sections, drying sections, calenders, paper reels, etc.). Clean papermaking machine pays special attention to improving raw material utilization, reducing wastewater discharge and waste residue generation, and adopts efficient bleaching and wastewater treatment technologies to ensure that the produced paper meets both quality standards and environmental protection characteristics;

[0003] In the process of paper production, it is often necessary to filter the papermaking materials to ensure the quality of the products produced. The screen cylinder meets this requirement of production filtration. The screen cylinder is an accessory on the papermaking machine. It is the most important medium for paper web forming and dehydration on the papermaking machine, and plays a key role in the quality of paper. The screen cylinder needs to be replaced regularly to ensure the quality of paper. In the prior art, such as the authorization announcement number CN 213267322 U discloses "a screen changing device for a papermaking machine", and specifically discloses: the placement seat is supported by a support plate, the rotating shaft is grasped by hand and one end is placed on the placement seat to contact the sponge pad, the other end is lifted to sleeve and install the dry screen cylinder, and then the rotating shaft is reinstalled on the two transmission devices; therefore, in the above-mentioned technology and the prior art, the staff often manually lifts the screen cylinder and removes the screen cylinder from the frame for replacement, which is inefficient and increases the labor force of the staff. Therefore, the utility model proposes a screen changing device for a papermaking machine for clean papermaking to solve the problems existing in the prior art. Utility Model Content

[0004] In view of the above problems, the utility model proposes a screen changing device for a papermaking machine for clean papermaking. When the screen cylinder needs to be replaced, the screen changing device for a papermaking machine for clean papermaking only needs a driving part to drive the buckle to open, and the support rod is rotated so that one end supports the roller from the bottom to push the center axis away from the support seat. At this time, through the inclination of the support rod and the rotation of the roller, the center axis and the screen cylinder can be rotated to the position where one end of the support rod is blocked by the baffle. The whole process does not require manual lifting of the screen cylinder, and is automated and more convenient.

[0005] To achieve the purpose of the utility model, the utility model is implemented by the following technical solutions: a paper machine screen changing device for clean papermaking, comprising a seat plate, a bracket and a baffle, the bracket is connected to one end of the seat plate, the baffle is connected to one end of the bracket, both sides of the inside of the baffle are rotatably provided with support rods, and one end of the support rod extends to the inner side of the seat plate, both sides of the top of the seat plate are provided with support seats, and the top of the support seat is provided with an arc groove, and a buckle is movably installed on the top of the support seat through a driving member, and the buckle is adapted to the arc groove;

[0006] The support seat is used to install the central axis, the central axis is provided with a mesh tube, and rollers and bearing rings are provided at both ends of the outer side of the central axis. The roller is located at the inner side of the bearing ring, the bearing ring is matched with the arc groove, and the inner groove of the roller is matched with the support rod.

[0007] A further improvement is that: a hinge seat is provided at the middle end of both sides inside the bracket, and a first pneumatic cylinder is rotatably provided on the hinge seat, and the output end of the first pneumatic cylinder is hinged to the support rod.

[0008] A further improvement is that the driving member includes an ear plate, a connecting arm and an electric telescopic rod, the ear plate is connected to one end of the support seat, the connecting arm is rotatably arranged on the inner side of the ear plate, and the buckle is connected to one end of the connecting arm.

[0009] A further improvement is that a hinged ear is provided on the seat plate at one end of the support seat, and an electric telescopic rod is rotatably provided on the hinged ear, and the output end of the electric telescopic rod is hinged to one end of the connecting arm.

[0010] A further improvement is that the height of the baffle is greater than the height of one end of the support rod, and the length of the central axis is greater than the inner width of the baffle.

[0011] A further improvement is that a connecting plate is provided below the inner side of the baffle, and a second pneumatic cylinder is provided above the connecting plate, and a supporting plate is provided at the output end of the second pneumatic cylinder, and the supporting plate is in an arc shape that matches the mesh cylinder.

[0012] A further improvement is that the roller is fixedly connected to the central shaft, and the bearing ring is rotatably connected to the central shaft.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model fixes the bearing ring through the support seat and the buckle to position the central axis, which is convenient for the rotation of the net cylinder. When the net cylinder needs to be replaced, it only needs to drive the buckle to open, and the support rod is rotated so that one end supports the roller from the bottom to push the central axis away from the support seat. At this time, through the inclination of the support rod and the rotation of the roller, the central axis and the net cylinder can be rotated to the position where one end of the support rod is blocked by the baffle. The whole process does not require manual lifting of the net cylinder, and is automated and more convenient. The support plate can carry multiple central axes and net cylinders for processing, providing convenience and sufficient time for net replacement.

[0015] 2. When the central axis and the net cylinder carried by the support plate are removed, the support plate can be lifted up by the second pneumatic cylinder, and the support plate lifts the net cylinder to make it higher than the baffle, which is convenient for manual unloading and more labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the front view of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure on the central axis of the utility model;

[0018] Figure 3 This is a schematic diagram of the seat plate, bracket, and baffle of the utility model;

[0019] Figure 4 For the utility model Figure 3 Schematic diagram of the structure at point A in the middle.

[0020] Among them: 1. seat plate; 2. bracket; 3. baffle; 4. support rod; 5. support seat; 6. buckle; 7. center axis; 8. net cylinder; 9. roller; 10. bearing ring; 11. hinged seat; 12. first pneumatic cylinder; 13. ear plate; 14. connecting arm; 15. electric telescopic rod; 16. hinged ear; 17. connecting plate; 18. second pneumatic cylinder; 19. support plate. DETAILED DESCRIPTION

[0021] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0022] Embodiment 1

[0023] according to Figure 1 , 2As shown in Figures 3 and 4, this embodiment proposes a screen changing device for a papermaking machine for clean papermaking, comprising a seat plate 1, a bracket 2 and a baffle 3, wherein the bracket 2 is connected to one end of the seat plate 1, and the baffle 3 is connected to one end of the bracket 2. Support rods 4 are rotatably provided on both sides of the inside of the baffle 3, and one end of the support rod 4 extends to the inner side of the seat plate 1, and support seats 5 are provided on both sides of the top of the seat plate 1, and an arc groove is provided on the top of the support seat 5, and a buckle 6 is movably installed on the top of the support seat 5 through a driving member, and the buckle 6 is adapted to the arc groove;

[0024] The support seat 5 is used to install the central axis 7, and the central axis 7 is provided with a net tube 8, and rollers 9 and bearing rings 10 are provided at both ends of the outer side of the central axis 7, and the rollers 9 are located at the inner side of the bearing ring 10, and the bearing ring 10 is adapted to the arc groove, and the inner groove of the rollers 9 is adapted to the support rod 4. When in use, the support seat 5 cooperates with the buckle 6 to fix the bearing ring 10, so as to position the central axis 7, and facilitate the rotation of the net tube 8. When the net tube 8 needs to be replaced, only the driving member needs to drive the buckle 6 to open, and the support rod 4 is rotated so that one end supports the roller 9 from the bottom, and the central axis 7 is lifted off the support seat 5. At this time, through the inclination of the support rod 4 and the rotation of the roller 9, the central axis 7 and the net tube 8 can be rotated to the support rod 4. One end is blocked by the baffle 3 to limit the position. The whole process does not need to lift the net tube 8 manually, and is automated, which is more convenient. The support plate 4 can carry multiple central axes 7 and net tubes 8 to be processed, providing convenience and sufficient time for changing the net.

[0025] The middle ends of both sides of the bracket 2 are provided with hinged seats 11, and the hinged seats 11 are rotatably provided with first pneumatic cylinders 12, and the output end of the first pneumatic cylinder 12 is hinged to the support rod 4. When in use, when the net tube 8 needs to be replaced, it is only necessary to drive the buckle 6 to open, and the support rod 4 is lifted and rotated by the first pneumatic cylinder 12, so that one end supports the roller 9 from below, and the central axis 7 is lifted off the support seat 5. At this time, through the inclination of the support rod 4 and the rotation of the roller 9, the central axis 7 and the net tube 8 can be rotated to the end of the support rod 4 blocked by the baffle 3. The whole process does not need to lift the net tube 8 manually, and it is automated and more convenient.

[0026] The driving member includes an ear plate 13, a connecting arm 14 and an electric telescopic rod 15. The ear plate 13 is connected to one end of the support seat 5. The connecting arm 14 is rotatably arranged on the inner side of the ear plate 13. The buckle 6 is connected to one end of the connecting arm 14. A hinge ear 16 is arranged on the seat plate 1 at one end of the support seat 5, and the electric telescopic rod 15 is rotatably arranged on the hinge ear 16. The output end of the electric telescopic rod 15 is hinged to one end of the connecting arm 14. When in use, the electric telescopic rod 15 pulls the connecting arm 14 to rotate based on the ear plate 13, which can drive the buckle 6 to open, and through the rotation of the support rod 4, one end supports the roller 9 from the bottom, pushing the central axis 7 away from the support seat 5. At this time, through the inclination angle of the support rod 4 and the rotation of the roller 9, the central axis 7 and the net tube 8 can be rotated to the position where one end of the support rod 4 is blocked by the baffle 3. During installation, the electric telescopic rod 15 pulls the connecting arm 14 to rotate based on the ear plate 13, which can drive the buckle 6 and the support seat 5 to close, so that the arc groove fixes the bearing ring 10.

[0027] The height of the baffle plate 3 is greater than the height of one end of the support rod 4, and the length of the central axis 7 is greater than the inner width of the baffle plate 3. Through the inclination of the support rod 4 and the rotation of the roller 9, the central axis 7 and the net cylinder 8 can be rotated to the end of the support rod 4 blocked by the baffle plate 3. The whole process does not need to be manually lifted. The net cylinder 8 is automated and more convenient. The support plate 4 can carry multiple central axes 7 and net cylinders 8 to be processed, providing convenience and sufficient time for changing the net.

[0028] The roller 9 is fixedly connected to the central shaft 7, and the bearing ring 10 is rotatably connected to the central shaft 7. During installation, the electric telescopic rod 15 pulls the connecting arm 14 to rotate based on the ear plate 13, which can drive the buckle 6 and the support seat 5 to close, so that the arc groove fixes the bearing ring 10, the central shaft 7 can rotate based on the bearing ring 10, and the net tube 8 rotates with the central shaft 7. When unloading, one end of the support rod 4 supports the roller 9 from below, and pushes the central shaft 7 away from the support seat 5. Through the inclination of the support rod 4 and the rotation of the roller 9, the central shaft 7 and the net tube 8 can be rotated to the upper end of the support rod 4 and blocked by the baffle 3 to limit the position.

[0029] Embodiment 2

[0030] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a screen changing device for a papermaking machine for clean papermaking, comprising a seat plate 1, a bracket 2 and a baffle 3, wherein the bracket 2 is connected to one end of the seat plate 1, and the baffle 3 is connected to one end of the bracket 2. Support rods 4 are rotatably provided on both sides of the inside of the baffle 3, and one end of the support rod 4 extends to the inner side of the seat plate 1, and support seats 5 are provided on both sides of the top of the seat plate 1, and an arc groove is provided on the top of the support seat 5, and a buckle 6 is movably installed on the top of the support seat 5 through a driving member, and the buckle 6 is adapted to the arc groove;

[0031] The support seat 5 is used to install the central axis 7, and the central axis 7 is provided with a net tube 8, and rollers 9 and bearing rings 10 are provided at both ends of the outer side of the central axis 7, and the rollers 9 are located at the inner side of the bearing ring 10, and the bearing ring 10 is adapted to the arc groove, and the inner groove of the rollers 9 is adapted to the support rod 4. When in use, the support seat 5 cooperates with the buckle 6 to fix the bearing ring 10, so as to position the central axis 7, and facilitate the rotation of the net tube 8. When the net tube 8 needs to be replaced, only the driving member needs to drive the buckle 6 to open, and the support rod 4 is rotated so that one end supports the roller 9 from the bottom, and the central axis 7 is lifted off the support seat 5. At this time, through the inclination of the support rod 4 and the rotation of the roller 9, the central axis 7 and the net tube 8 can be rotated to the support rod 4. One end is blocked by the baffle 3 to limit the position. The whole process does not need to lift the net tube 8 manually, and is automated, which is more convenient. The support plate 4 can carry multiple central axes 7 and net tubes 8 to be processed, providing convenience and sufficient time for changing the net.

[0032] A connecting plate 17 is provided below the inner side of the baffle plate 3, and a second pneumatic cylinder 18 is provided above the connecting plate 17. A supporting plate 19 is provided at the output end of the second pneumatic cylinder 18, and the supporting plate 19 is in an arc shape that matches the net cylinder 8. When removing the central shaft 7 and the net cylinder 8 carried by the supporting plate 4, the supporting plate 19 can be lifted up by the second pneumatic cylinder 18, and the supporting plate 19 lifts the net cylinder 8 so that its height is higher than the baffle plate 3, which is convenient for manual unloading and more labor-saving.

[0033] The roller 9 is fixedly connected to the central shaft 7, and the bearing ring 10 is rotatably connected to the central shaft 7. During installation, the electric telescopic rod 15 pulls the connecting arm 14 to rotate based on the ear plate 13, which can drive the buckle 6 and the support seat 5 to close, so that the arc groove fixes the bearing ring 10, the central shaft 7 can rotate based on the bearing ring 10, and the net tube 8 rotates with the central shaft 7. When unloading, one end of the support rod 4 supports the roller 9 from below, and pushes the central shaft 7 away from the support seat 5. Through the inclination of the support rod 4 and the rotation of the roller 9, the central shaft 7 and the net tube 8 can be rotated to the upper end of the support rod 4 and blocked by the baffle 3 to limit the position.

[0034] The paper machine screen changing device for clean papermaking uses a support seat 5 to cooperate with a buckle 6 to fix the bearing ring 10, thereby positioning the central axis 7, which is convenient for the rotation of the net tube 8. When the net tube 8 needs to be replaced, the driving member only needs to drive the buckle 6 to open, and the support rod 4 is rotated so that one end supports the roller 9 from the bottom, and the central axis 7 is lifted off the support seat 5. At this time, through the inclination of the support rod 4 and the rotation of the roller 9, the central axis 7 and the net tube 8 can be rotated to the support rod 4. One end is blocked by the baffle 3 to limit the position. The whole process does not need to manually lift the net tube 8, and it is automated and more convenient. The support plate 4 can carry multiple central axes 7 and net tubes 8 to be processed, providing convenience and sufficient time for changing the net. And when the central axis 7 and net tube 8 carried on the support plate 4 are removed, the support plate 19 can be lifted by the second pneumatic cylinder 18, and the support plate 19 lifts the net tube 8 so that its height is higher than the baffle 3, which is convenient for manual unloading and more labor-saving.

[0035] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A screen changing device for a paper machine for clean papermaking, comprising a base plate (1), a bracket (2) and a baffle (3), characterized in that: The bracket (2) is connected to one end of the seat plate (1), the baffle (3) is connected to one end of the bracket (2), support rods (4) are rotatably provided on both sides of the inside of the baffle (3), and one end of the support rod (4) extends to the inner side of the seat plate (1), support seats (5) are provided on both sides of the top of the seat plate (1), and the top of the support seat (5) is provided with an arc groove, and a buckle (6) is movably installed on the top of the support seat (5) through a driving member, and the buckle (6) is adapted to the arc groove; The support seat (5) is used to install the central shaft (7), the central shaft (7) is provided with a net tube (8), and rollers (9) and bearing rings (10) are provided at both ends of the outer side of the central shaft (7), the roller (9) is located at the inner side of the bearing ring (10), the bearing ring (10) is matched with the arc groove, and the inner groove of the roller (9) is matched with the support rod (4).

2. A screen changing device for a paper machine for clean papermaking according to claim 1, characterized in that: A hinge seat (11) is provided at the middle end of both sides inside the bracket (2), and a first pneumatic cylinder (12) is rotatably provided on the hinge seat (11), and the output end of the first pneumatic cylinder (12) is hinged to the support rod (4).

3. A screen changing device for a paper machine for clean papermaking according to claim 1, characterized in that: The driving member comprises an ear plate (13), a connecting arm (14) and an electric telescopic rod (15); the ear plate (13) is connected to one end of the support seat (5); the connecting arm (14) is rotatably arranged on the inner side of the ear plate (13); and the buckle (6) is connected to one end of the connecting arm (14).

4. A screen changing device for a paper machine for clean papermaking according to claim 3, characterized in that: A hinged ear (16) is provided on the seat plate (1) at one end of the support seat (5), and an electric telescopic rod (15) is rotatably provided on the hinged ear (16), and an output end of the electric telescopic rod (15) is hinged to one end of the connecting arm (14).

5. A screen changing device for a paper machine for clean papermaking according to claim 1, characterized in that: The height of the baffle (3) is greater than the height of one end of the support rod (4), and the length of the central axis (7) is greater than the inner width of the baffle (3).

6. A screen changing device for a paper machine for clean papermaking according to claim 5, characterized in that: A connecting plate (17) is provided below the inner side of the baffle (3), and a second pneumatic cylinder (18) is provided above the connecting plate (17). A supporting plate (19) is provided at the output end of the second pneumatic cylinder (18), and the supporting plate (19) is in an arc shape that matches the net cylinder (8).

7. A screen changing device for a paper machine for clean papermaking according to claim 1, characterized in that: The roller (9) is fixedly connected to the central shaft (7), and the bearing ring (10) is rotatably connected to the central shaft (7).

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