Wet-process paper sheet former

Abstract

The utility model discloses a wet-process paper sheet former, which comprises a machine base, a paper sheet forming surface, a paper sheet forming device and a wet-process paper sheet forming device, the pressing base is arranged on the machine base, an air bag is arranged in the pressing base, and the air bag is connected with an air pressure supply source; the locking piece is arranged on the machine base and is in locking fit with the pressing seat; and the plane pressing plate is arranged on the pressing seat, and when the locking piece is locked with the pressing seat, the plane pressing plate is matched with the paper sheet forming surface. According to the utility model, the pressing mechanism is adopted to replace a pressing roller, so that the dehydration rate and the dehydration stability of paper sheets are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wet forming equipment, in particular to a wet paper sheet former. Background Art

[0002] A wet paper sheet former is a device used to form paper sheets from pulp through a wet forming process. It is widely used in fields such as materials science, chemical engineering, and the paper industry, and is an essential part in laboratory and industrial production.

[0003] In the process of manufacturing paper sheets with existing wet paper sheet formers, it is necessary to manually lay filter paper on the paper sheets, and then use a couch roll to reciprocate and squeeze the moisture in the paper sheets, so that the water in the paper sheets is transferred to the filter paper to achieve dehydration of the paper sheets.

[0004] In the above paper sheet dehydration process, since it is manually operated, there will be human differences in each operation of the same operator and the operations of different operators, resulting in differences in the dehydration effect of the paper sheets. And when the moisture content in the paper sheets is relatively high, directly using the reciprocating extrusion movement of the couch roll will damage the paper sheets. Summary of the Invention

[0005] The purpose of the utility model is to provide a wet paper sheet former, which uses a couch mechanism to replace the couch roll to improve the dehydration rate and dehydration stability of the paper sheets.

[0006] In order to achieve the above purpose, a wet paper sheet former provided by the utility model has the following specific implementation schemes:

[0007] A wet paper sheet former, comprising:

[0008] A machine base, with a paper sheet forming surface provided on the top;

[0009] A couch seat, provided on the machine base, with an airbag built therein, and the airbag is connected to an air pressure supply source;

[0010] A locking member, provided on the machine base, and is in locking cooperation with the couch seat; and

[0011] A flat pressing plate, provided on the couch seat, and when the locking member is locked with the couch seat, it matches the paper sheet forming surface.

[0012] A wet paper sheet former of the present utility model, compared with the prior art, by arranging a paper sheet forming surface on the top of the machine base of the wet paper sheet former, when the formed paper sheet needs to be dewatered, a water filtering paper is laid on the formed paper sheet, and then a pressing seat is covered on the paper sheet forming surface, and a locking member locks and cooperates the pressing seat and the machine base. An air pressure providing source is started to provide air pressure for an airbag built in the pressing seat, so that the airbag expands and presses a flat pressing plate. The flat pressing plate moves on the pressing seat to press the water filtering paper and the paper sheet, and transfers the moisture in the paper sheet to the water filtering paper. Compared with the traditional reciprocating movement mode of the pressing roller, on the one hand, the present utility model does not need reciprocating movement to avoid damaging the paper sheet, and on the other hand, it can transfer 20% - 30% of the moisture in the paper sheet containing 90% moisture to the water filtering paper, reduce the moisture of the paper sheet, increase the density of the paper sheet, thereby improving the physical properties of the paper sheet, and improving the dewatering rate and dewatering stability of the paper sheet.

[0013] In some of the embodiments, the airbag moves in the axial direction of the pressing seat under the drive of the air pressure providing source, driving the flat pressing plate to move in the axial direction of the pressing seat, and pressing the water filtering paper and the paper sheet on the paper sheet forming surface.

[0014] Through the air supply of the air pressure providing source, the airbag expands and moves in the axial direction of the pressing seat, so as to use the expansion of the airbag to push the flat pressing plate to move in the axial direction of the pressing seat, press the water filtering paper and the paper sheet on the paper sheet forming surface, transfer the moisture in the paper sheet to the water filtering paper, and realize the extrusion dewatering of the paper sheet.

[0015] In some of the embodiments, the pressing seat includes:

[0016] A mounting seat, the mounting seat is hollow, the airbag is arranged inside the mounting seat, and one end of the mounting seat is arranged on the flat pressing plate; and

[0017] A sealing cover, arranged on the other end of the mounting seat, sealingly cooperating with the mounting seat, and provided with an air pressure hole connected to the air pressure providing source, and the air pressure hole conducts the airbag.

[0018] By arranging the airbag in the mounting seat of the pressing seat, and then closing the mounting seat through the sealing cover, using the air pressure hole of the sealing cover to connect the air pressure providing source to provide the air pressure required for the expansion of the airbag, the installation stability and use stability of the airbag in the pressing seat are improved.

[0019] In some of the embodiments, a sealing groove is opened on the mounting seat or the sealing cover, and a first sealing ring is arranged in the sealing groove, and at least part of the first sealing ring is located outside the sealing groove and abuts against the sealing cover or the mounting seat.

[0020] By adopting the structure of the sealing groove and the first sealing ring, the sealed connection between the sealing cover and the mounting seat is realized, ensuring the sealing performance of the pressing seat when the air pressure supply source supplies air pressure to the airbag, thereby improving the use stability of the airbag.

[0021] In some embodiments, the flat pressing plate is a rigid material plate.

[0022] By setting the flat pressing plate as a rigid material plate, the flatness of the flat pressing plate is ensured, avoiding the situation of paper damage caused by the unevenness of the flat pressing plate when squeezing the filter paper and the paper sheet.

[0023] In some embodiments, the locking member includes:

[0024] A first locking block provided on the machine base; and

[0025] A locking rod hinged to the first locking block;

[0026] A second locking block is provided on the pressing seat, and a locking groove is formed on the second locking block. The locking rod is in locking cooperation with the locking groove.

[0027] By adopting the cooperation of the locking rod on the first locking block and the locking groove on the second locking block, the connection stability and disassembly stability between the pressing seat and the machine base are improved.

[0028] In some embodiments, a first hinge block is provided on the machine base, and a second hinge block is provided on the pressing seat. The second hinge block is hinged to the first hinge block.

[0029] By adopting the structure of the first hinge block and the second hinge block to realize the connection between the pressing seat and the machine base, the convenience and stability of the cooperation between the pressing seat and the paper forming surface are improved.

[0030] In some embodiments, a second sealing ring is provided on the paper forming surface, a convex edge is provided on the outer periphery of the pressing seat, the second sealing ring is in sealing cooperation with the inner peripheral wall of the convex edge and the pressing seat, and a vacuum pumping mechanism is provided in the machine base. The vacuum pumping mechanism conducts the paper forming surface.

[0031] By providing a second sealing ring on the paper forming surface, using the sealing cooperation between the second sealing ring and the inner peripheral wall of the convex edge on the pressing seat and the pressing seat, and the vacuum pumping mechanism provided inside the machine base to conduct the paper forming surface, when the air pressure supplied by the air pressure supply source to the airbag is not sufficient to realize the dehydration of the paper sheet, the vacuum pumping mechanism is started to cooperate to provide suction for the flat pressing plate, ensuring that the flat pressing plate can squeeze the filter paper and the paper sheet to transfer the moisture in the paper sheet to the filter paper.

[0032] In some of these embodiments, a water filtering cylinder is provided on the machine base, a paper sheet forming surface is formed at the top of the water filtering cylinder, a number of vacuum holes are opened on the paper sheet forming surface, a drain pipe is provided inside the machine base, one end of the drain pipe is connected to the water filtering cylinder, and the other end is connected to the vacuum pumping mechanism.

[0033] By using the water filtering cylinder to form the paper sheet forming surface and arranging the drain pipe inside the machine base to conduct the vacuum holes of the water filtering cylinder and the vacuum pumping mechanism, the normal use of the vacuum pumping mechanism is ensured.

[0034] In some of these embodiments, a control panel is provided on the machine base, and the control panel is electrically connected to the vacuum pumping mechanism.

[0035] By arranging the control panel on the machine base, the controllability of the use of the vacuum pumping mechanism is improved by utilizing the electrical connection between the control panel and the vacuum pumping mechanism.

[0036] Based on the above technical solutions, compared with the prior art, the present utility model has the following beneficial effects:

[0037] By arranging the paper sheet forming surface at the top of the machine base of the wet paper sheet former, when the formed paper sheet needs to be dewatered, the filter paper is laid on the formed paper sheet, then the pressure applying seat is covered on the paper sheet forming surface, the locking member locks and cooperates the pressure applying seat and the machine base, the air pressure providing source is started to provide air pressure for the air bag built in the pressure applying seat, so that the air bag expands and extrudes the flat pressing plate, and the flat pressing plate moves on the pressure applying seat to extrude the filter paper and the paper sheet, transferring the moisture in the paper sheet to the filter paper. Compared with the traditional way of reciprocating movement of the pressure applying roller, on the one hand, the present utility model avoids damaging the paper sheet without reciprocating movement, and on the other hand, it can transfer 20% - 30% of the moisture in the paper sheet containing 90% moisture to the filter paper, reducing the moisture of the paper sheet, increasing the density of the paper sheet so as to improve the physical properties of the paper sheet, and improving the dewatering rate and dewatering stability of the paper sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a schematic structural diagram of the present utility model;

[0039] Figure 2 is of the present utility model Figure 1 partial enlarged schematic diagram;

[0040] Figure 3 is a schematic structural diagram of the pressure applying seat of the present utility model;

[0041] Figure 4 is an exploded view of the pressure applying seat of the present utility model;

[0042] Figure 5 is a sectional view of the present utility model.

[0043] Description of the drawing reference numerals:

[0044] 100, machine base; 110, water filter cylinder; 111, paper forming surface; 112, vacuum extraction hole; 113, second sealing ring; 120, drain pipe; 130, vacuum extraction mechanism; 140, first hinge block; 150, control panel; 160, stirring barrel; 200, press roll seat; 210, mounting seat; 211, holding handle; 220, sealing cover; 221, air pressure hole; 230, sealing groove; 240, first sealing ring; 250, airbag; 251, first connecting piece; 252, second connecting piece; 260, flat pressing plate; 270, convex edge; 280, second hinge block; 300, locking member; 310, first locking block; 320, locking rod; 321, locking disc; 330, second locking block; 340, locking groove. Detailed implementation manners

[0045] To facilitate the understanding of the present utility model, the specific embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings of the specification.

[0046] Unless otherwise specified or defined, the "first, second..." used herein is only for differentiating names and does not represent a specific quantity or order.

[0047] Unless otherwise specified or defined, the term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0048] It should be noted that the "fixed to" and "connected to" herein can be directly fixed or connected to an element, or indirectly fixed or connected to an element.

[0049] As Figures 1-5 shown, a wet paper sheet former provided in this embodiment includes a machine base 100, a water filter cylinder 110 is provided on the machine base 100, a paper forming surface 111 is provided on the top surface of the water filter cylinder 110, and the paper forming surface 111 is used to cooperate with the pulp in a stirring barrel 160 provided on the machine base 100 for wet paper sheet forming.

[0050] It further includes a press roll seat 200 for cooperating with the paper forming surface 111, and a locking member 300 is provided on the machine base 100. The locking member 300 is used to lock the press roll seat 200 when the press roll seat 200 and the paper forming surface 111 are in cooperation, so as to improve the use stability of the press roll seat 200.

[0051] Specifically, the pressing seat 200 includes a mounting seat 210 and a sealing cover 220. The mounting seat 210 is hollow, with an airbag 250 provided at one end and a flat pressing plate 260 provided at the other end. The sealing cover 220 is connected to the end where the airbag 250 is provided for sealing the airbag 250.

[0052] To improve the connection tightness between the sealing cover 220 and the mounting seat 210, a sealing groove 230 is provided on the mounting seat 210 or the sealing cover 220. A first sealing ring 240 is provided in the sealing groove 230, and at least part of the first sealing ring 240 is located outside the sealing groove 230 and abuts against the sealing cover 220 or the mounting seat 210.

[0053] Moreover, a first connecting piece 251 is provided on the airbag 250. The first connecting piece 251 is connected to a second connecting piece 252 by means of screws or pins, etc. The second connecting piece 252 is connected to the sealing cover 220 by means of screws or pins, etc., to realize the connection and fixation of the airbag 250 inside the pressing seat 200.

[0054] It can be understood that to improve the connection convenience and stability between the airbag 250, the first connecting piece 251 and the second connecting piece 252, both the first connecting piece 251 and the second connecting piece 252 are bonded to the airbag 250.

[0055] An air pressure hole 221 for guiding air to the airbag 250 is provided on the sealing cover 220. The air pressure hole 221 is used to connect to an external air pressure source to provide a driving source for the displacement of the airbag 250 in the axial direction of the pressing seat 200 during expansion.

[0056] To ensure that the airbag 250 can drive the flat pressing plate 260 to move in the axial direction of the pressing seat 200 during expansion, the flat pressing plate 260 can be adhesively fixed to the airbag 250. One end of the airbag 250 connected to the flat pressing plate 260 is set as a rigid plane, and the rest is a silicone or plastic airbag 250 made of soft rubber material.

[0057] To ensure the flatness of the flat pressing plate 260, the flat pressing plate 260 is set as a rigid material plate. In this embodiment, a stainless steel plate, a hard plastic plate, an acrylic plate, etc. are preferably used to avoid the situation that the flatness of the flat pressing plate 260 decreases due to deformation during the expansion of the airbag 250, resulting in damage to the paper.

[0058] To facilitate the use of the pressing seat 200 on the machine base 100, a first hinge block 140 is provided on the outer wall of the water filter cylinder 110 of the machine base 100, and a second hinge block 280 is provided on the outer wall of the pressing seat 200. The second hinge block 280 and the first hinge block 140 are hinged by a hinge shaft, so that the pressing seat 200 can be rotated to cover and use on the paper forming surface 111, and can be rotated and removed when not in use.

[0059] Moreover, to improve the convenience of locking and unlocking of the locking member 300, the locking member 300 is arranged to include a first locking block 310 provided on the outer wall of the water filter cylinder 110 and a second locking block 330 provided on the outer wall of the machine base 100. A locking rod 320 is hinged on the first locking block 310, and a locking groove 340 is formed on the second locking block 330. When the pressing seat 200 covers the water filter cylinder 110, the locking rod 320 rotates and snaps into the locking groove 340, and is pressed tightly by a locking disc 321 with adjustable position provided on the locking rod 320 to realize the locking of the pressing seat 200 and the machine base 100.

[0060] To further facilitate the use of the pressing seat 200 on the machine base 100, a holding handle 211 for holding and flipping the pressing seat 200 is provided on the outer wall of the mounting seat 210.

[0061] When the air pressure provided by the air pressure source and the expansion of the airbag 250 are not sufficient to complete the dehydration of the paper, a drain pipe 120 is provided inside the machine base 100. One end of the drain pipe 120 is connected to the water filter cylinder 110, and the other end is connected to a vacuum pumping mechanism 130, so that a plurality of vacuum holes 112 on the paper forming surface 111 of the water filter cylinder 110 are communicated with the vacuum pumping mechanism 130, providing a vacuum suction force for the flat pressing plate 260, and cooperating with the thrust of the expansion of the airbag 250 to ensure the normal operation of the dehydration of the paper by the flat pressing plate 260.

[0062] To ensure the normal use of the vacuum pumping mechanism 130, a second sealing ring 113 is provided on the paper forming surface 111 of the water filter cylinder 110, and a convex edge 270 is provided on the outer periphery of the pressing seat 200. The second sealing ring 113 is in sealing cooperation with the inner peripheral wall of the convex edge 270 and the pressing seat 200 to realize the sealing between the pressing seat 200 and the water filter cylinder 110.

[0063] To improve the controllability of the vacuum pumping mechanism 130, a control panel 150 electrically connected to the vacuum pumping mechanism 130 is provided on the outer wall of the machine base 100.

[0064] Working principle of the wet papermaking former in this embodiment: After the pulp in the stirring tank is formed on the papermaking surface 111 of the water filtering cylinder 110 under the cooperation of the drain pipe 120 and the vacuum pumping mechanism 130, filter paper is laid on the paper sheet, and then the couch roll seat 200 is covered on the water filtering cylinder 110. The second sealing ring 113 and the convex edge 270 on the water filtering cylinder 110 are in sealing cooperation with the couch roll seat 200. The air pressure supply source is started to supply air to the airbag 250. The airbag 250 expands under the action of air and moves in the axial direction of the couch roll seat 200 to drive the flat pressing plate 260 to move and press the filter paper and the paper sheet on the papermaking surface 111, transferring 20% - 30% of the moisture on the paper sheet to the filter paper to achieve dehydration of the paper sheet. When the air pressure provided by the air pressure supply source is insufficient and it is difficult to achieve dehydration, the vacuum pumping mechanism 130 is started to assist in completing the dehydration of the paper sheet.

[0065] According to the disclosure and teachings of the above specification, those skilled in the art to which the present utility model pertains can also make changes and modifications to the above embodiments. Therefore, the present utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present utility model should also fall within the protection scope of the claims of the present utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model.

Claims

1. A wet paper sheet former, characterized in that, Comprising: A machine base (100) with a paper forming surface (111) at the top; A couch roll seat (200) provided on the machine base (100), with an airbag (250) built therein, and the airbag (250) is connected to an air pressure supply source; A locking member (300) provided on the machine base (100) and in locking cooperation with the couch roll seat (200); and A flat pressing plate (260) provided on the couch roll seat (200), which matches the paper forming surface (111) when the locking member (300) is locked with the couch roll seat (200).

2. The wet papermaking former according to claim 1, characterized in that, The airbag (250) moves in the axial direction of the couch roll seat (200) under the drive of the air pressure supply source, driving the flat pressing plate (260) to move in the axial direction of the couch roll seat (200) to squeeze the filter paper and paper on the paper forming surface (111).

3. The wet paper sheet former according to claim 2, wherein The couch roll seat (200) includes: A mounting seat (210), the mounting seat (210) is hollow, the airbag (250) is provided inside the mounting, and one end of the mounting seat (210) is provided on the flat pressing plate (260); and A sealing cover (220) provided on the other end of the mounting seat (210), in sealing cooperation with the mounting seat (210), and provided with an air pressure hole (221) connected to the air pressure supply source, and the air pressure hole (221) conducts the airbag (250).

4. The wet papermaking former according to claim 3, characterized in that, A sealing groove (230) is provided on the mounting seat (210) or the sealing cover (220), and a first sealing ring (240) is provided in the sealing groove (230), and at least part of the first sealing ring (240) is located outside the sealing groove (230) and abuts against the sealing cover (220) or the mounting seat (210).

5. The wet paper sheet former according to any one of claims 1-4, characterized in that, The flat pressing plate (260) is a rigid material plate.

6. The wet paper sheet former according to any one of claims 1 to 4, characterized in that, The locking member (300) includes: A first locking block (310) provided on the machine base (100); and A locking rod (320) hinged to the first locking block (310); A second locking block (330) is provided on the couch roll seat (200), and a locking groove (340) is provided on the second locking block (330), and the locking rod (320) is in locking cooperation with the locking groove (340).

7. The wet paper sheet former according to claim 6, characterized in that, A first hinge block (140) is provided on the machine base (100), and a second hinge block (280) is provided on the couch roll seat (200), and the second hinge block (280) is hinged to the first hinge block (140).

8. The wet paper sheet former according to any one of claims 1-4, characterized in that, A second sealing ring (113) is provided on the paper forming surface (111), a convex edge (270) is provided on the outer periphery of the couch roll seat (200), the second sealing ring (113) is in sealing cooperation with the inner peripheral wall of the convex edge (270) and the couch roll seat (200), and a vacuum pumping mechanism (130) is provided in the machine base (100), and the vacuum pumping mechanism (130) conducts the paper forming surface (111).

9. The wet paper sheet former according to claim 8, characterized in that, A water filtering cylinder (110) is provided on the machine base (100). A paper sheet forming surface (111) is formed at the top of the water filtering cylinder (110), and a plurality of vacuum holes (112) are formed in the paper sheet forming surface (111). A drain pipe (120) is provided in the machine base (100). One end of the drain pipe (120) is connected to the water filtering cylinder (110), and the other end is connected to the vacuum pumping mechanism (130).

10. The wet paper sheet former according to claim 8, characterized in that, A control panel (150) is provided on the machine base (100), and the control panel (150) is electrically connected to the vacuum pumping mechanism (130).

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