A paper machine press arrangement

Abstract

The utility model relates to paper machine technical field, specifically disclose a paper machine squeezing device, including the bottom plate, the upper end surface of bottom plate is fixedly connected with the top plate through four symmetrical distribution's support column, the bottom of top plate is provided with two same structure's squeezing mechanism, the squeezing mechanism includes two parallelly arranged straight line guide rails, is arranged in the top plate bottom and is staggered in front and back layout, one of straight line guide rails is higher than another straight line guide rail through the mounting plate of bottom, the sliding sleeve of sliding connection in the outer wall of straight line guide rail, the electric push rod of installation in the outer wall of sliding sleeve, fixedly connected in the electric push rod output end, and the arc pressing plate of inner curved surface and the outer diameter of rotating roller match, the felt layer of setting up in the inner wall of arc pressing plate, through the straight line guide rail of staggered in front and back layout makes double arc pressing plate alternately presss / dewatering, promotes equipment utilization, realizes papermaking press link's zero stop dewatering, and through arc pressing plate curved surface package design makes the press area increase, reaches efficient dewatering.

Description

Technical Field

[0001] This utility model relates to the field of papermaking machine technology, and specifically discloses a papermaking machine pressing device. Background Technology

[0002] Papermaking is an important invention of the ancient Chinese working people. With social development and the advancement of modern machinery, people use modern papermaking machines to replace traditional handmade papermaking. Pulp suitable for papermaking is diluted with water to a suitable concentration, and then initially dehydrated on the wire section of the papermaking machine to form a wet paper towel. This wet paper towel is then pressed and dehydrated by a press device, and finally dried to become paper. The press device is an indispensable part of the papermaking machine.

[0003] Chinese Patent No. CN213086460U discloses a paper machine pressing device, belonging to the technical field of pressing devices. It includes a base with support pillars fixed to both sides of the top. An electric push rod is installed in the middle of the top of the base, and a water collection tank is connected to the top of the electric push rod. A filter plate is installed on the top of the water collection tank. This paper machine pressing device includes a suction block, an absorbent sponge, a filter plate, and a suction pipe. During use, the user places the paper on the filter plate and drives the motor using the control panel. The rotating shaft drives the roller to rotate, and a pressing layer is provided on the outer surface of the roller to press the paper. The pressed water permeates through the filter plate into the water collection tank. A suction block is provided at the bottom of the filter plate, and the permeated water flows through the suction block and suction pipe into the absorbent sponge, thus facilitating the rapid and effective discharge of water overflowing during pressing and improving the pressing efficiency of this paper machine pressing device.

[0004] Although the aforementioned paper can allow water seeping through the paper to flow into the interior of the absorbent sponge through the suction block and suction pipe, the machine needs to be stopped to dehydrate the water absorbed by the squeezing layer on the outer wall of the roller after it is full of water. In addition, the contact area between the roller and the paper is small, which reduces the pressing efficiency. Therefore, a paper machine pressing device is needed to solve this problem. Utility Model Content

[0005] This utility model proposes a paper machine pressing device, which improves equipment utilization and achieves zero-downtime dewatering in the paper pressing process by alternating pressing / dewatering through a front-to-back staggered pressing mechanism. Furthermore, the curved surface wrapping design of the arc-shaped pressing plate increases the pressing area, achieving efficient dewatering.

[0006] This utility model is implemented as follows: a paper machine pressing device includes a base plate, a top plate is fixedly connected to the upper end of the base plate by four symmetrically distributed support columns, a connecting plate is fixedly connected between the two support columns on the right side, a rotating roller is provided on the left side of the connecting plate, two pressing mechanisms with the same structure are provided at the bottom end of the top plate, and water removal mechanisms with the same structure are fixedly connected to both the left and right sides of the bottom end of the top plate.

[0007] The pressing mechanism includes two parallel linear guide rails, which are located at the bottom of the top plate and are arranged in a staggered manner. One of the linear guide rails is higher than the other linear guide rail through the mounting plate at the bottom. A sliding sleeve is slidably connected to the outer wall of the linear guide rail, an electric push rod is installed on the outer wall of the sliding sleeve, an arc-shaped pressure plate is fixedly connected to the output end of the electric push rod and whose inner curved surface matches the outer diameter of the roller, and a blanket layer is set on the inner wall of the arc-shaped pressure plate.

[0008] The dewatering mechanism includes a fixed cavity located at the bottom of the top plate, with openings at the top and on the left and right sides. An extrusion frame is fixedly connected inside the fixed cavity. The outer curved surface of the extrusion frame matches the inner curved surface of the arc-shaped pressure plate. A drain pipe with a valve installed on its outer wall is connected to the middle of the bottom of the fixed cavity.

[0009] As a preferred embodiment of the paper machine pressing device of this utility model, a water collection trough is placed on the upper end surface of the base plate, located directly below the rotating roller.

[0010] As a preferred embodiment of the paper machine pressing device of this utility model, the surface of the rotating roller is provided with a microporous structure.

[0011] As a preferred embodiment of the paper machine pressing device of this utility model, the bottom surface of the fixed cavity slopes downward from the edge toward the drain pipe.

[0012] As a preferred embodiment of the paper machine pressing device of this utility model, the felt layer is a double-layer composite structure, including a fine fiber layer close to the paper and a highly absorbent substrate layer close to the arc-shaped pressure plate.

[0013] As a preferred embodiment of the paper machine pressing device of this utility model, a controller is installed at the top of the top plate, and the linear guide rail, electric push rod and valve are all electrically connected to the controller.

[0014] The beneficial effects of this utility model are:

[0015] The staggered linear guide rails allow the double arc-shaped pressure plates to alternately press / dewater, improving equipment utilization and achieving zero-downtime dewatering in the paper pressing process. Furthermore, the curved surface wrapping design of the arc-shaped pressure plates increases the pressing area, achieving highly efficient dewatering. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a front sectional view of a paper machine pressing device according to the present invention.

[0018] Figure 2 This is a structural diagram of the arc-shaped pressure plate of this utility model.

[0019] Figure 3 This is a structural diagram of the fixed cavity side of this utility model.

[0020] Figure 4 This is a top view of the top plate structure of this utility model.

[0021] The markings in the diagram are: 1. Base plate; 101. Connecting plate; 102. Rotary roller; 2. Top plate; 201. Linear guide rail; 202. Sliding sleeve; 203. Electric actuator; 204. Arc-shaped pressure plate; 205. Blanket layer; 3. Fixed cavity; 301. Extrusion frame; 302. Drain pipe; 4. Water collection tank. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0023] Please see Figure 1-4 A paper machine pressing device includes a base plate 1. A top plate 2 is fixedly connected to the upper end of the base plate 1 by four symmetrically distributed support columns. A connecting plate 101 is fixedly connected between the two support columns on the right side. A rotating roller 102 is arranged on the left side of the connecting plate 101. Two pressing mechanisms with the same structure are arranged at the bottom end of the top plate 2. A dewatering mechanism with the same structure is fixedly connected to both the left and right sides of the bottom end of the top plate 2.

[0024] The pressing mechanism includes two parallel linear guide rails 201, which are located at the bottom of the top plate 2 and are arranged in a staggered manner. One of the linear guide rails 201 is higher than the other linear guide rail 201 through the mounting plate at the bottom. A sliding sleeve 202 is slidably connected to the outer wall of the linear guide rail 201, an electric push rod 203 is installed on the outer wall of the sliding sleeve 202, an arc-shaped pressure plate 204 is fixedly connected to the output end of the electric push rod 203 and whose inner curved surface matches the outer diameter of the roller 102, and a blanket layer 205 is provided on the inner wall of the arc-shaped pressure plate 204.

[0025] The water removal mechanism includes a fixed cavity 3 located at the bottom of the top plate 2 and open at the top and on the left and right sides. A squeezing frame 301 is fixedly connected inside the fixed cavity 3. The outer curved surface of the squeezing frame 301 matches the inner curved surface of the arc-shaped pressure plate 204. A drain pipe 302 with a valve installed on its outer wall is connected to the middle of the bottom of the fixed cavity 3.

[0026] In this embodiment: The paper to be pressed is placed on the surface of the rotating roller 102. Simultaneously, the right-side pressing mechanism is moved to directly above the rotating roller 102 via the linear guide rail 201. Then, the electric actuator 203 is activated, driving the arc-shaped pressure plate 204 downwards. This causes the arc-shaped pressure plate 204 to adhere to and wrap around the surface of the rotating roller 102. The curved surface wrapping pressing ensures uniform pressure on the paper, squeezing out water and allowing the felt layer 205 to quickly absorb the water flowing from the paper. When the felt layer 205 has absorbed a significant amount of water, the right-side pressing mechanism can move to the right via the linear guide rail 201, and the left-side pressing mechanism moves to the right under the drive of the linear guide rail 201 (via one of the linear guide rails 201). A mounting plate is provided at the bottom of 1, so that the sliding sleeve 202 on the outer wall of one linear guide 201 is higher than the sliding sleeve 202 on the outer wall of the other linear guide 201, thereby avoiding interference between the two sliding sleeves 202. Until the right arc-shaped pressure plate 204 moves to the top of the roller 102, the paper on the roller 102 is drained through the right arc-shaped pressure plate 204. While the left pressing mechanism moves to the right, it enters the fixed cavity 3. As the arc-shaped pressure plate 204 moves, the pressing frame 301 in the fixed cavity 3 fits against the inner curved surface of the arc-shaped pressure plate 204, thereby squeezing the felt layer 205 on the inner wall of the arc-shaped pressure plate 204 and removing water from the felt layer 205.

[0027] The staggered linear guide rails 201 allow the double arc-shaped pressure plates 204 to alternately press / dewater, improving equipment utilization and achieving zero-downtime dewatering in the paper pressing process. Furthermore, the curved surface wrapping design of the arc-shaped pressure plates 204 increases the pressing area, achieving efficient dewatering.

[0028] As a technical optimization of this utility model, a water collection trough 4 is placed on the upper end surface of the base plate 1, located directly below the rotating roller 102.

[0029] In this embodiment, the water collection tank 4 can be used to collect water flowing out of the micropores on the rotating roller 102.

[0030] As a technical optimization of this utility model, the surface of the rotating roller 102 is provided with a microporous structure.

[0031] In this embodiment, by providing a microporous structure on the surface of the roller 102, moisture can be discharged.

[0032] As a technical optimization of this utility model, the bottom surface of the fixed cavity 3 slopes downward from the edge toward the drain pipe 302.

[0033] In this embodiment, the bottom surface of the fixed cavity 3 slopes downward from the edge toward the drain pipe 302, allowing water entering the fixed cavity 3 to be quickly discharged through the drain pipe 302.

[0034] As a technical optimization of this utility model, the blanket layer 205 is a double-layer composite structure, including a fine fiber layer close to the paper and a highly absorbent substrate layer close to the arc-shaped pressure plate 204.

[0035] In this embodiment: the fine fiber layer buffers the pressure and protects the paper surface, while the substrate layer increases the water absorption capacity to achieve deep water retention.

[0036] As a technical optimization of this utility model, a controller is installed at the top of the top plate 2, and the linear guide rail 201, electric push rod 203 and valve are all electrically connected to the controller.

[0037] In this embodiment, the controller can control the linear guide 201, the electric actuator 203, and the valve to operate normally.

[0038] The working principle and usage process of this utility model are as follows: The paper to be pressed is placed on the surface of the rotating roller 102. At the same time, the right-side pressing mechanism is moved to directly above the rotating roller 102 via the linear guide rail 201. Then, the electric push rod 203 is activated, causing the electric push rod 203 to drive the arc-shaped pressure plate 204 to move downward, causing the arc-shaped pressure plate 204 to adhere to and wrap around the surface of the rotating roller 102. The curved surface wrapping pressing makes the paper evenly stressed, and the water is squeezed out. The felt layer 205 quickly absorbs the water flowing out of the paper. At the same time, some water enters the water collection tank 4 through the micropores on the rotating roller 102 for collection. When the felt layer 205 has absorbed a lot of water, the right-side pressing mechanism can be moved to the right via the linear guide rail 201, and the left-side pressing mechanism moves to the right via the linear guide rail 201. Driven by the rail 201, it moves to the right until the right arc-shaped pressure plate 204 moves directly above the roller 102. Then, the right arc-shaped pressure plate 204 drains water from the paper on the roller 102. The double arc-shaped pressure plates 204 can alternately press / dehydrate through the staggered linear guide rails 201. While the left pressing mechanism moves to the right, it enters the fixed cavity 3. As the arc-shaped pressure plate 204 moves, the squeezing frame 301 in the fixed cavity 3 fits against the inner curved surface of the arc-shaped pressure plate 204, thereby squeezing the felt layer 205 on the inner wall of the arc-shaped pressure plate 204 and removing water from the felt layer 205. The water on the felt layer 205 falls to the bottom of the fixed cavity 3 and is discharged through the drain pipe 302.

[0039] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A paper machine pressing device, comprising a base plate (1), wherein a top plate (2) is fixedly connected to the upper end face of the base plate (1) by four symmetrically distributed support columns, and a connecting plate (101) is fixedly connected between the two support columns on the right side, and a rotating roller (102) is provided on the left side of the connecting plate (101), characterized in that: The bottom end of the top plate (2) is provided with two pressing mechanisms with the same structure, and the left and right sides of the bottom end of the top plate (2) are fixedly connected with water removal mechanisms with the same structure. The pressing mechanism includes two parallel linear guide rails (201), which are located at the bottom of the top plate (2) and are arranged in a staggered manner. One of the linear guide rails (201) is higher than the other linear guide rail (201) through the mounting plate at the bottom. A sliding sleeve (202) is slidably connected to the outer wall of the linear guide rail (201), an electric push rod (203) is installed on the outer wall of the sliding sleeve (202), an arc-shaped pressure plate (204) is fixedly connected to the output end of the electric push rod (203) and whose inner curved surface matches the outer diameter of the roller (102), and a blanket layer (205) is set on the inner wall of the arc-shaped pressure plate (204). The dewatering mechanism includes a fixed cavity (3) located at the bottom of the top plate (2) and open at the top and on the left and right sides. An extrusion frame (301) is fixedly connected inside the fixed cavity (3). The outer curved surface of the extrusion frame (301) matches the inner curved surface of the arc-shaped pressure plate (204). A drain pipe (302) with a valve installed on its outer wall is connected to the middle of the bottom of the fixed cavity (3).

2. The paper machine press device according to claim 1, characterized in that: A water collection trough (4) is placed on the upper surface of the base plate (1) directly below the rotating roller (102).

3. The paper machine press device according to claim 1, characterized in that: The surface of the roller (102) is provided with a microporous structure.

4. The paper machine press device according to claim 1, characterized in that: The bottom surface of the fixed cavity (3) slopes downward from the edge toward the drain pipe (302).

5. A paper machine press device according to claim 1, characterized in that: The blanket layer (205) has a double-layer composite structure, including a fine fiber layer close to the paper and a highly absorbent substrate layer close to the arc-shaped pressure plate (204).

6. The paper machine press device according to claim 1, characterized in that: A controller is installed at the top of the top plate (2), and the linear guide rail (201), electric push rod (203) and valve are all electrically connected to the controller.

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