A paper machine press mechanism

Abstract

The utility model relates to fruit bag paper processing equipment technical field, concretely is a kind of paper machine press mechanism, including mounting bracket, the inside of mounting bracket is equipped with upper roller mechanism and lower roller mechanism, and adjusting assembly for controlling the longitudinal sliding of upper roller mechanism is equipped on mounting bracket;Upper roller mechanism includes arc concave roller, both ends of arc concave roller are fixedly provided with pivot, the outer surface of two pivots is rotatably provided with first mounting seat, and first mounting seat is slidably matched with mounting bracket;Lower roller mechanism includes arc convex roller;By setting upper roller mechanism, lower roller mechanism and vibration generating component, the curved surface design of arc concave and convex roller, the arc-shaped compression zone adhering surface of can form more fit fruit bag paper, so that moisture more easily along perpendicular or close to perpendicular to the direction of paper web surface discharge, so that the moisture of each part of paper web can be efficiently extruded and discharged, greatly improve the uniformity of dewatering, and the dynamic pressure generated by vibration can also relieve static pressure to the pulling of paper web.

Description

Technical Field

[0001] This utility model relates to the technical field of fruit bag paper processing equipment, and in particular to a paper machine pressing mechanism. Background Technology

[0002] The fruit bag paper pressing equipment is the core equipment in the fruit bag paper production process after dehydration. Its main function is to further remove moisture from the wet paper web through mechanical extrusion, while initially improving the paper's density, strength, and surface smoothness, thus reducing energy consumption for subsequent drying processes.

[0003] A paper machine pressing mechanism disclosed in Chinese Patent Publication No. CN221118087U describes a process where, after the wet paper web is initially dewatered at the wire section of the paper machine, it is held between the upper and lower pressure rollers of a two-roll press by upper and lower felts. As the upper and lower pressure rollers rotate, a certain linear pressure is formed between them under the pressure applied by the upper pressure roller pressing device, squeezing the wet paper web sandwiched in the middle. At this time, the water in the paper web is squeezed out, some of which is absorbed by the felts, and the rest is discharged through the sides. However, according to the paper machine pressing mechanisms provided in related fields and existing technologies, the existing fruit bag paper pressing method involves wrapping the wet paper between upper and lower felts, and the water is mainly discharged through the sides during squeezing. This lateral drainage method requires the water to move a relatively long distance laterally in the paper web before it can be discharged. The interwoven structure of fruit bag paper fibers hinders the lateral movement of water, resulting in a longer drainage path, increased drainage resistance, and reduced dewatering efficiency. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a paper machine pressing mechanism.

[0005] The objective of this utility model is achieved through the following technical solution: a paper machine pressing mechanism, including a mounting frame, wherein an upper roller pressing mechanism and a lower roller pressing mechanism are provided inside the mounting frame, and an adjusting component for controlling the longitudinal sliding of the upper roller pressing mechanism is provided on the mounting frame; the upper roller pressing mechanism includes an arc-shaped concave roller, both ends of which are fixedly provided with rotating shafts, and the outer surfaces of the two rotating shafts are rotatably provided with first mounting seats, which are slidably engaged with the mounting frame; the lower roller pressing mechanism includes an arc-shaped convex roller, both ends of which are fixedly provided with hollow shafts, and the outer surfaces of the two hollow shafts are rotatably provided with second mounting seats, which are fixedly mounted on the mounting frame; the arc-shaped convex roller is a central structure, and a vibration generating component is provided inside the arc-shaped convex roller to cause it to vibrate when it rotates circumferentially.

[0006] Preferably, the vibration generating assembly includes a fixed frame fixedly mounted on the side of the mounting bracket, a fixed rod fixedly mounted on the side of the fixed frame facing the arcuate convex roller, the fixed rod extending through the hollow shaft into the interior of the arcuate convex roller, an elastic element fixedly mounted at one end of the fixed rod inside the arcuate convex roller, and a striking element fixedly mounted at the end of the elastic element away from the fixed rod.

[0007] Preferably, the elastic element and the striking element are disposed in the middle of the interior of the arc-shaped convex roller, and a plurality of striking plates are fixedly provided at equal intervals in the middle of the inner wall of the arc-shaped convex roller.

[0008] Preferably, the striking element is spherical in shape and made of rubber.

[0009] Preferably, the first mounting base has a first rotating hole corresponding to the position of the rotating shaft, and the rotating shaft is connected to the first rotating hole through a bearing. A first motor for controlling the rotation of the rotating shaft is fixedly installed on the outer side of one of the first mounting bases.

[0010] Preferably, the second mounting base has a second rotating hole corresponding to the position of the hollow shaft, and the hollow shaft is connected to the second rotating hole through a bearing. A second motor for controlling the rotation of the hollow shaft is fixedly installed on the outer side of one of the second mounting bases.

[0011] Preferably, the adjustment assembly includes two fixed plates fixedly installed on both sides of the top of the mounting frame, and a hydraulic cylinder is fixedly installed on the top of each of the two fixed plates. The output of the hydraulic cylinder extends through the fixed plate into the interior of the mounting frame, and the output ends of the two hydraulic cylinders are respectively fixedly installed on the top of the two first mounting seats.

[0012] The beneficial effects of the paper machine's pressing mechanism are as follows: by setting up an upper roller pressing mechanism, a lower roller pressing mechanism, and a vibration generating component, the curved surface design of the arc-shaped concave and convex rollers can form an arc-shaped pressing zone that fits the fruit bag paper better, making it easier for water to be discharged in a direction perpendicular or nearly perpendicular to the paper web surface. As a result, water in all parts of the paper web can be efficiently squeezed out, greatly improving the uniformity of dewatering and making the paper web more evenly stressed. At the same time, the dynamic pressure generated by the vibration can also alleviate the static pressure on the paper web, thereby reducing paper stretching, lowering the breakage rate, and improving the continuity and stability of production. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the present invention from a first-view perspective after the arc-shaped concave roller and the arc-shaped convex roller are brought close together;

[0016] Figure 3 This is a schematic diagram of the structure of the present invention from a second perspective after the arc-shaped concave roller and the arc-shaped convex roller are brought close together;

[0017] Figure 4 This is a schematic diagram of the internal structure of the arc-shaped convex roller of this utility model;

[0018] Figure 5 This is a schematic diagram showing the disassembled structure of the upper roller pressing mechanism and the lower roller pressing mechanism of this utility model with respect to the mounting frame;

[0019] Figure 6 This is a schematic diagram of the vibration generating component of this utility model.

[0020] In the diagram: 1. Mounting frame; 2. Upper roller pressing mechanism; 201. Arc-shaped concave roller; 202. Rotating shaft; 203. First mounting seat; 2031. First rotating hole; 3. Lower roller pressing mechanism; 301. Arc-shaped convex roller; 3011. Impact plate; 302. Hollow shaft; 303. Second mounting seat; 3031. Second rotating hole; 4. Adjustment assembly; 401. Fixing plate; 402. Hydraulic cylinder; 5. Vibration generating assembly; 501. Fixing frame; 502. Fixing rod; 503. Elastic element; 504. Impacting element; 6. First motor; 7. Second motor. Detailed Implementation

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, in part of which will be obvious from the description or may be learned by practice of the invention.

[0023] like Figures 1 to 6 As shown, a paper machine pressing mechanism includes a mounting frame 1. The mounting frame 1 houses an upper roller pressing mechanism 2 and a lower roller pressing mechanism 3. The mounting frame 1 is equipped with an adjusting component 4 for controlling the longitudinal sliding of the upper roller pressing mechanism 2. The upper roller pressing mechanism 2 includes an arc-shaped concave roller 201, with rotating shafts 202 fixedly mounted at both ends. First mounting seats 203 are rotatably mounted on the outer surfaces of both rotating shafts 202. The first mounting seats 203 are slidably fitted with the mounting frame 1. First rotating holes 2031 are provided on the first mounting seats 203 corresponding to the positions of the rotating shafts 202. The rotating shafts 202 are connected to the first rotating holes 2031 via bearings. The bearings reduce the friction of the arc-shaped concave roller 201 during rotation, improving its stability. A first motor 6 for controlling the rotation of the rotating shaft 202 is fixedly mounted on the outer side of one of the first mounting seats 203. The lower roller pressing mechanism 3 includes an arc-shaped convex roller 301, with the arc-shaped convex roller 301 having two... Hollow shafts 302 are fixedly provided on both of the two hollow shafts 302. Second mounting seats 303 are rotatably provided on the outer surface of each hollow shaft 302. The second mounting seats 303 are fixedly mounted on the mounting frame 1. The second mounting seats 303 have second rotation holes 3031 corresponding to the positions of the hollow shafts 302. The hollow shafts 302 are connected to the second rotation holes 3031 through bearings. By using the aforementioned bearings, the friction force when the arc-shaped convex roller 301 rotates can be reduced, and the stability of the arc-shaped convex roller 301 during rotation can be improved. A second motor 7 for controlling the rotation of the hollow shaft 302 is fixedly installed on the outer side of one of the second mounting seats 303. The arc-shaped convex roller 301 is a central structure. The interior of the arc-shaped convex roller 301 is provided with a vibration generating component 5 that causes it to vibrate when it rotates in its circumferential direction. The curved surface design of the arc-shaped convex roller makes the paper web more evenly stressed. The dynamic pressure generated by the vibration can also alleviate the static pressure on the paper web, thereby reducing paper stretching, reducing the breakage rate, and improving the continuity and stability of production.

[0024] The vibration generating assembly 5 includes a fixed frame 501 fixedly mounted on the side of the mounting bracket 1. A fixed rod 502 is fixedly mounted on the side of the fixed frame 501 facing the arc-shaped convex roller 301. The fixed rod 502 extends into the interior of the arc-shaped convex roller 301 through a hollow shaft 302. An elastic element 503, which is a spring, is fixedly mounted on one end of the fixed rod 502 located inside the arc-shaped convex roller 301. An impact element 504 is fixedly mounted on the other end of the elastic element 503 away from the fixed rod 502. The elastic element 503 and the impact element 504 are located in the middle of the interior of the arc-shaped convex roller 301. Multiple impact plates 3011 are fixedly mounted at equal intervals in the middle of the inner wall of the arc-shaped convex roller 301. The impact element 504 is spherical in shape and made of rubber. The vibration generating assembly 5 does not require an additional independent drive unit, which simplifies the equipment structure and reduces the manufacturing and maintenance costs of the equipment.

[0025] The adjustment assembly 4 includes two fixed plates 401 fixedly installed on both sides of the top of the mounting frame 1. A hydraulic cylinder 402 is fixedly installed on the top of each of the two fixed plates 401. The output of the hydraulic cylinder 402 extends through the fixed plate 401 into the interior of the mounting frame 1. The output ends of the two hydraulic cylinders 402 are respectively fixedly installed on the top of the two first mounting seats 203.

[0026] The work process is as follows:

[0027] S1: When using, first wrap the wet paper between the upper and lower blankets, and then pass it between the curved concave roller 201 and the curved convex roller 301;

[0028] S2: The upper roller pressing mechanism 2 is controlled to move downward by the hydraulic cylinder 402, so that the arc concave roller 201 and the arc convex roller 301 clamp the upper and lower blankets.

[0029] S3: The first motor 6 controls the arc-shaped concave roller 201 to rotate clockwise, and the second motor 7 controls the arc-shaped convex roller 301 to rotate counterclockwise. The arc-shaped concave roller 201 and the arc-shaped convex roller 301 are used to press and dehydrate the wet paper wrapped between the upper and lower blankets.

[0030] S4: The arc-shaped concave roller 201 and the arc-shaped convex roller 301 work together to form an arc-shaped pressing area that fits the fruit bag paper better, making it easier for water to be discharged in a direction perpendicular or nearly perpendicular to the paper web surface. This allows water to be efficiently squeezed out from all parts of the paper web, greatly improving the uniformity of dewatering and reducing the occurrence of localized over-drying and brittleness or localized high moisture content and easy breakage after the paper web is dried due to uneven dewatering.

[0031] S5: When the arc-shaped convex roller 301 rotates, the striking element 504 will continuously contact multiple impact plates 3011 (by using the elastic element 503, it is possible to avoid excessive contact between the striking element 504 and the impact plates 3011), causing the arc-shaped convex roller 301 to vibrate. With the help of the dynamic vibration of the arc-shaped convex roller 301, the pressure on the paper web during the pressing process can be dynamically changed, breaking the binding state of moisture in the paper web, making it easier for moisture to be squeezed out from the fiber gaps, further improving the dewatering efficiency and reducing the energy consumption of subsequent drying processes.

[0032] The first motor 6, the second motor 7, and the hydraulic cylinder 402 described in this application are all known technologies in this field, and therefore their specific structures and working principles are not described in detail.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A paper machine press mechanism characterized by: It includes a mounting frame (1), the mounting frame (1) is provided with an upper roller pressing mechanism (2) and a lower roller pressing mechanism (3) inside, and the mounting frame (1) is provided with an adjustment component (4) for controlling the longitudinal sliding of the upper roller pressing mechanism (2); The upper roller pressing mechanism (2) includes an arc-shaped concave roller (201), and both ends of the arc-shaped concave roller (201) are fixedly provided with rotating shafts (202). The outer surfaces of the two rotating shafts (202) are rotatably provided with first mounting seats (203), and the first mounting seats (203) are slidably engaged with the mounting frame (1). The lower roller pressing mechanism (3) includes an arc-shaped convex roller (301), and hollow shafts (302) are fixedly provided at both ends of the arc-shaped convex roller (301). The outer surfaces of the two hollow shafts (302) are rotatably provided with second mounting seats (303), and the second mounting seats (303) are fixedly installed on the mounting frame (1). The arc-shaped convex roller (301) is a central structure, and the interior of the arc-shaped convex roller (301) is provided with a vibration generating component (5) that causes it to vibrate when it rotates in the circumferential direction.

2. The paper machine press mechanism according to claim 1, characterized in that: The vibration generating assembly (5) includes a fixing frame (501) fixedly installed on the side of the mounting bracket (1). A fixing rod (502) is fixedly provided on the side of the fixing frame (501) facing the arc-shaped convex roller (301). The fixing rod (502) extends through the hollow shaft (302) into the interior of the arc-shaped convex roller (301). An elastic element (503) is fixedly provided at one end of the fixing rod (502) located inside the arc-shaped convex roller (301). A striking element (504) is fixedly provided at the end of the elastic element (503) away from the fixing rod (502).

3. The paper machine press mechanism according to claim 2, characterized in that: The elastic element (503) and the striking element (504) are disposed in the middle of the interior of the arc-shaped convex roller (301), and a plurality of impact plates (3011) are fixedly provided at equal intervals in the middle of the inner wall of the arc-shaped convex roller (301).

4. The paper machine press mechanism according to claim 3, characterized in that: The striking element (504) is spherical in shape and is made of rubber.

5. The paper machine press mechanism according to claim 1, characterized in that: The first mounting base (203) has a first rotating hole (2031) at the position corresponding to the rotating shaft (202). The rotating shaft (202) is connected to the first rotating hole (2031) through a bearing. A first motor (6) for controlling the rotation of the rotating shaft (202) is fixedly installed on the outer side of one of the first mounting bases (203).

6. The paper machine press mechanism according to claim 1, characterized in that: The second mounting base (303) has a second rotating hole (3031) at the position corresponding to the hollow shaft (302). The hollow shaft (302) is connected to the second rotating hole (3031) through a bearing. A second motor (7) for controlling the rotation of the hollow shaft (302) is fixedly installed on the outer side of one of the second mounting bases (303).

7. The paper machine press mechanism according to claim 1, characterized in that: The adjustment assembly (4) includes two fixed plates (401) fixedly installed on both sides of the top of the mounting frame (1). A hydraulic cylinder (402) is fixedly installed on the top of each of the two fixed plates (401). The output of the hydraulic cylinder (402) extends through the fixed plate (401) into the interior of the mounting frame (1). The output ends of the two hydraulic cylinders (402) are respectively fixedly installed on the top of the two first mounting seats (203).

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