Vacuum suction box based on wet papermaking

Abstract

The utility model relates to a vacuum suction box, in particular to a vacuum suction box based on wet papermaking. The vacuum suction box based on wet papermaking is provided with an improved structure. The device comprises a water suction box, a turnover mechanism, a cleaning assembly and the like, the water suction box is rotationally installed on the turnover mechanism, and the cleaning assembly is arranged in the water suction box and used for cleaning paper scraps generated during papermaking water suction. The multiple rows of water absorption holes are evenly distributed in the water absorption panel of the water absorption box at intervals in a staggered mode, each water absorption hole is of a conical structure with the inner portion wide and the outer portion narrow, the dehydration rate of wet paper can be improved, the probability that the water absorption holes are blocked can be reduced, and then the supporting strength on coarse cotton cloth and the wet paper can be improved; and the water absorption panel is made of a ceramic material, and the surface of the water absorption panel is also subjected to a ceramic spraying process, so that the surface of the water absorption panel is smoother, and the damage of the water absorption box to coarse cotton cloth is reduced.

Description

Technical Field

[0001] The utility model relates to a vacuum suction box, specifically a vacuum suction box based on wet papermaking. Background Art

[0002] During paper production, dehydration is an essential process in the wet papermaking process. As the main component for dehydration, the vacuum suction box is widely used. During the production of household paper, the main functions of the vacuum suction box are: assisting in dehydrating wet paper, increasing the dryness of wet paper, and reducing the use of coating materials; assisting in dehydrating wet paper, increasing the dryness of wet paper, and reducing steam consumption and power consumption during the drying process; assisting in cleaning the felt, maintaining the cleanliness of the felt, and extending the cleaning cycle of the felt.

[0003] However, the current vacuum suction box generally consists of several parts such as a box body, a vacuum panel, and a vacuum valve. A panel is laid on the side of the vacuum suction box that contacts the felt. Depending on different production requirements, one to three narrow and slender gaps are set. Through these gaps, the water of the felt and wet paper is taken away. Due to the relatively simple structural function of the existing vacuum suction box, its water absorption channel structure uses conventional narrow and slender gaps to absorb water from wet paper. This structure provides relatively little support for wet paper, which makes the wet paper prone to sagging and affecting the flatness of its forming; moreover, while the pressure difference inside and outside the vacuum suction box takes away the water on the felt and wet paper, it makes the felt slide along the panel of the suction box. Inevitably, the felt will be damaged due to friction during this process. After the felt slides along the panel of the vacuum box for a long time, the panel is prone to damage, and when the panel is damaged, the service life of the felt is reduced.

[0004] In view of this, a vacuum suction box based on wet papermaking with an improved structure is specifically proposed, aiming to solve the problems that the wear resistance and smoothness of the upper panel material of the existing vacuum suction box are relatively low, and the structure of the water absorption channel has relatively little support. Summary of the Utility Model

[0005] In order to overcome the shortcomings that the functional structure of the existing vacuum suction box is relatively simple and it is easy to cause deformation of the wet paper being absorbed, the purpose of the utility model is to provide a vacuum suction box based on wet papermaking with an improved structure.

[0006] The technical solution is as follows: A vacuum suction box based on wet papermaking, which includes a suction box, a water absorption panel, a drain valve and a vacuum pump, and also includes a partition filter, a flipping mechanism and a cleaning component. A partition filter for filtering shredded paper scraps is arranged inside the suction box. The suction box is rotatably installed on the flipping mechanism. The flipping mechanism includes a connecting shaft, a frame, a worm gear, a worm and a handwheel. Connecting shafts are fixedly connected to the left and right sides of the suction box, and the connecting shafts are rotatably installed on the frame. A worm gear is sleeved on one of the connecting shafts. A worm is rotatably connected to the upper part of the frame near the worm gear, and the worm is meshed with the worm gear. The outer end of the worm is connected with a handwheel. Rotating the handwheel can drive the worm and the worm gear to rotate, so that the suction box can be flipped. The cleaning component is arranged inside the suction box and is used for cleaning the shredded paper scraps generated during papermaking and water absorption.

[0007] As a further description of the above technical solution, the partition filter includes a positioning frame, a baffle and a filter screen. A positioning frame is arranged in the middle of the inner wall of the suction box. A baffle is placed on the positioning frame. A hole slot is opened in the middle of the baffle, and a filter screen for filtering shredded paper scraps is arranged in the hole slot.

[0008] As a further description of the above technical solution, the cleaning component includes a guide rod, an electric screw rod, a scraping plate, a scraping strip and a brush. The guide rod is connected to the upper side inside the suction box. An electric screw rod is installed on the suction box. One end of the electric screw rod rotatably penetrates through the suction box. The guide rod is slidably sleeved with the scraping plate, and the scraping plate is screwed and sleeved on the electric screw rod through a threaded sleeve. A scraping strip is arranged on the lower side of the scraping plate, and the lower end surface of the scraping strip abuts against the baffle. A brush is arranged on the upper side of the scraping plate, and the upper end of the brush abuts against the lower side surface of the water absorption panel.

[0009] As a further description of the above technical solution, the shape of the water absorption hole is designed as a conical structure with a wider inner part and a narrower outer part.

[0010] As a further description of the above technical solution, the water absorption panel is made of ceramic material.

[0011] As a further description of the above technical solution, it further includes a flow guide plate. Flow guide plates are respectively arranged on the left and right side walls inside the suction box, and the flow guide plates are located between the water absorption panel and the baffle.

[0012] The beneficial effects are as follows: On the water absorption panel of the water suction tank of this device, multiple rows of water absorption holes are evenly distributed at staggered positions. The shape of each water absorption hole is a conical structure design with a wider inner width and a narrower outer width, which is beneficial to improving the dehydration rate of wet paper, reducing the probability of water absorption hole blockage, and further increasing the support force for the felt and wet paper. Moreover, since the water absorption panel is made of ceramic material and its surface also adopts a ceramic spraying process, the surface of the water absorption panel is smoother and flatter, which is beneficial to reducing the damage of the water suction tank to the felt and further beneficial to maintaining the flatness of the shape of the wet paper. Brief Description of the Drawings

[0013] Figure 1 It is a three-dimensional structure schematic diagram of the present utility model.

[0014] Figure 2 It is a cross-sectional view of the present utility model.

[0015] Figure 3 It is a partial structure separation diagram of the present utility model.

[0016] Figure 4 It is a three-dimensional structure schematic diagram of the water absorption panel of the present utility model.

[0017] Figure 5 It is a three-dimensional structure schematic diagram of the cleaning component of the present utility model.

[0018] Figure 6 It is a flipped state diagram of the present utility model.

[0019] Names of the reference numerals in the drawings: 1. Water suction tank, 2. Water absorption panel, 3. Water absorption hole, 4. Drain valve, 5. Vacuum pump, 6. Connecting shaft, 7. Frame, 8. Worm gear, 9. Worm, 10. Handwheel, 11. Positioning frame, 12. Baffle, 13. Filter screen, 14. Guide rod, 15. Electric screw rod, 16. Scraper, 17. Scraping strip, 18. Brush, 19. Deflector. Detailed Description of the Embodiment

[0020] The above solution will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are for illustrating the present application and not for limiting the scope of the present application. The implementation conditions adopted in the embodiments can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0021] In this embodiment: The present utility model provides a vacuum water suction tank based on wet papermaking. Refer to Figures 1 to 6As shown in the figure, it includes a suction water tank 1, a water absorption panel 2, a drain valve 4, a vacuum pump 5, a partition filter element, a flipping mechanism and a cleaning component. A water absorption panel 2 is arranged at the top of the suction water tank 1. The water absorption panel 2 is made of ceramic material, and the upper side of the water absorption panel 2 adopts a ceramic spraying process, which can effectively reduce the scraping resistance between the felt and the water absorption panel 2, and thus is beneficial to extending the service life of the felt; the water absorption panel 2 is evenly spaced with water absorption holes 3 in a staggered manner, and the shape of the water absorption holes 3 is a conical structure with a wider inner width and a narrower outer width, which has better water dehydration performance and is beneficial to reducing the clogging probability of the water absorption holes 3; a drain valve 4 is connected and communicated with the outer side of the bottom of the suction water tank 1, and a vacuum pump 5 is connected and communicated with the outer side of the upper part of the suction water tank 1 through a mounting bracket. A partition filter element for filtering shredded paper is arranged inside the suction water tank 1. The suction water tank 1 is rotatably mounted on the flipping mechanism. The flipping mechanism includes a connecting shaft 6, a frame 7, a worm gear 8, a worm 9 and a handwheel 10. Connecting shafts 6 are fixedly connected to the left and right sides of the suction water tank 1, and the connecting shafts 6 are rotatably mounted on the frame 7. A worm gear 8 is sleeved on one of the connecting shafts 6. A worm 9 is rotatably connected to the upper part of the frame 7 close to the worm gear 8, and the worm 9 meshes with the worm gear 8. A handwheel 10 is connected to the outer end of the worm 9. Rotating the handwheel 10 can drive the worm 9 and the worm gear 8 to rotate, so that the suction water tank 1 can be flipped. The cleaning component is arranged inside the suction water tank 1 and is used for cleaning the shredded paper generated during paper making and water absorption.

[0022] Further, referring to Figure 2 and Figure 3 As shown in the figure, the partition filter element includes a positioning frame 11, a baffle 12 and a filter screen 13. A positioning frame 11 is arranged in the middle of the inner wall of the suction water tank 1. A baffle 12 is placed on the positioning frame 11, and the baffle 12 can be disassembled upward, which is beneficial to achieving the purpose of convenient cleaning and maintenance; a hole slot is opened in the middle of the baffle 12, and a filter screen 13 for filtering shredded paper is arranged in the hole slot. The filter screen 13 can filter the shredded paper, and thus can prevent the drain valve 4 connected to the bottom of the suction water tank 1 from being blocked during drainage.

[0023] Further, referring to Figure 2 、 Figure 3 and Figure 5As shown in the figure, the cleaning component includes a guide rod 14, an electric lead screw 15, a scraper 16, a scraping strip 17 and a brush 18. A guide rod 14 is connected to the upper side inside the water suction tank 1. An electric lead screw 15 is installed on the water suction tank 1. The electric lead screw 15 is mainly composed of a motor and a lead screw. The motor is installed on the outer side of the water suction tank 1 through a bracket. The lead screw is connected to the output shaft of the motor through a coupling, and the lead screw is rotatably sleeved on the water suction tank 1. The guide rod 14 is slidably sleeved with a scraper 16, and the scraper 16 is screwed onto the lead screw through a threaded sleeve. A scraping strip 17 is arranged on the lower side of the scraper 16, and the lower end surface of the scraping strip 17 abuts against the baffle 12. A brush 18 is arranged on the upper side of the scraper 16, and the upper end of the brush 18 abuts against the lower side of the water absorption panel 2. When the baffle 12 drives the scraping strip 17 and the brush 18 thereon to move reciprocally, the shredded paper scraps remaining on the baffle 12 and below the water absorption holes 3 on the water absorption panel 2 can be cleaned respectively.

[0024] In addition, further, refer to Figure 2 and Figure 3 As shown in the figure, it further includes a diversion plate 19. The left and right side walls inside the water suction tank 1 are respectively provided with a diversion plate 19, and the diversion plate 19 is located between the water absorption panel 2 and the baffle 12. The diversion plate 19 is designed with an inclined structure with an outer high and inner low bottom, which is beneficial to guiding some shredded paper scraps so that some shredded paper scraps can slide onto the baffle 12.

[0025] During use, start the vacuum pump 5 so that a negative pressure can be generated inside the water suction tank 1. When the felt and the wet paper thereon are slidably conveyed onto the water absorption panel 2 and pass through, the moisture of the wet paper on the felt can be sucked through the negative pressure generated inside the water suction tank 1; since the channel of the conventional water suction tank 1 of this device is changed from a slender slit to a plurality of side-by-side water absorption holes 3, and the water absorption holes 3 in each row are evenly spaced in a staggered manner, it is beneficial to improve the dehydration rate of the wet paper and reduce the probability of blockage of the water absorption holes 3; and since the water absorption panel 2 adopts a ceramic spraying process, its surface is smoother and flatter, which is further beneficial to reducing the damage of the water suction tank 1 to the felt; by installing a flipping mechanism on the operation side, after closing the vacuum valve on the vacuum pump 5, by rotating the handwheel 10, the worm 9 and the worm gear 8 can be driven to rotate correspondingly, and then the box body of the water suction tank 1 can be flipped by 90 degrees (as Figure 6As shown in the figure, it is convenient to maintain and inspect the suction box 1 on the frame 7, which is beneficial to reducing the work intensity of the staff for daily maintenance and inspection. When it is necessary to clean the shredded paper scraps inside the suction box 1, start the electric lead screw 15 to rotate forward and backward alternately, which can drive the scraper 16, the scraping strip 17 and the brush 18 to move back and forth inside the suction box 1. In this way, the shredded paper scraps at the water absorption holes 3 on the lower side of the water absorption panel 2 can be cleaned by the brush 18, and at the same time, under the scraping action of the scraping strip 17, the shredded paper scraps on the baffle 12 and the filter screen 13 can be scraped and cleaned, which is beneficial to achieving the purpose of convenient cleaning of the shredded paper scraps.

[0026] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form. Any technical solutions obtained by means of equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims

1. Vacuum suction box based on wet papermaking, comprising a suction box (1), a water absorption panel (2), a drain valve (4) and a vacuum pump (5), characterized in that, It further includes a partition filtering member, a turning mechanism and a cleaning assembly. A partition filtering member for filtering shredded paper scraps is arranged inside the water suction tank (1). The water suction tank (1) is rotatably installed on the turning mechanism. The turning mechanism includes a connecting shaft (6), a frame (7), a worm gear (8), a worm (9) and a hand wheel (10). Connecting shafts (6) are fixedly connected to the left and right sides of the water suction tank (1). The connecting shafts (6) are rotatably installed on the frame (7). A worm gear (8) is sleeved on one of the connecting shafts (6). A worm (9) is rotatably connected to the upper part of the frame (7) near the worm gear (8), and the worm (9) meshes with the worm gear (8). The outer end of the worm (9) is connected with the hand wheel (10). Rotating the hand wheel (10) can drive the worm (9) and the worm gear (8) to rotate, so that the water suction tank (1) can be turned over. The cleaning assembly is arranged inside the water suction tank (1) and is used for cleaning the shredded paper scraps generated during paper making and water absorption.

2. The vacuum suction box based on wet papermaking according to claim 1, characterized in that, The partition filtering member includes a positioning frame (11), a baffle (12) and a filter screen (13). A positioning frame (11) is arranged in the middle of the inner wall of the water suction tank (1). The baffle (12) is placed on the positioning frame (11). A hole slot is opened in the middle of the baffle (12), and a filter screen (13) for filtering shredded paper scraps is arranged in the hole slot.

3. The vacuum suction box based on wet papermaking according to claim 2, characterized in that, The cleaning assembly includes a guide rod (14), an electric screw rod (15), a scraping plate (16), a scraping strip (17) and a brush (18). The guide rod (14) is connected to the upper side inside the water suction tank (1). The electric screw rod (15) is installed on the water suction tank (1). One end of the electric screw rod (15) rotatably penetrates through the water suction tank (1). The guide rod (14) is slidably sleeved with the scraping plate (16), and the scraping plate (16) is screwed onto the electric screw rod (15) through a threaded sleeve. A scraping strip (17) is arranged on the lower side of the scraping plate (16), and the lower end surface of the scraping strip (17) abuts against the baffle (12). A brush (18) is arranged on the upper side of the scraping plate (16), and the upper end of the brush (18) abuts against the lower side surface of the water absorption panel (2).

4. The vacuum suction box based on wet papermaking according to claim 1, characterized in that, The water absorption holes (3) are designed in a conical structure with a wider inner width and a narrower outer width.

5. The vacuum suction box based on wet papermaking according to claim 1, characterized in that, The water absorption panel (2) is made of ceramic material.

6. The vacuum suction box based on wet papermaking according to claim 2, characterized in that It further includes a flow guide plate (19). Flow guide plates (19) are respectively arranged on the left and right side walls inside the water suction tank (1), and the flow guide plates (19) are located between the water absorption panel (2) and the baffle (12).

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