Paper pulp molding pulp suction membrane improved laying structure

Abstract

This utility model relates to an improved mesh laying structure for pulp molding suction films, belonging to the field of pulp molding technology. It includes a hollow-structured cover mechanism with a suction mold installed at its bottom. This solves the problems of uneven mesh laying and inconvenient adjustment in traditional pulp molding suction film mesh laying structures, leading to unstable quality of the produced pulp molding products. The improved structure utilizes a three-layer multi-mesh mesh supported by a base plate and guide rod assembly inside the suction mold. This utilizes the graded filtration function of different mesh sizes to sequentially achieve coarse filtration, fine filtration, and ultrafine sieving of fibers. Compared to traditional single-mesh structures, it can more effectively remove impurities from the pulp and evenly distribute fibers, fundamentally solving the technical problem of uneven mesh laying in traditional methods. This significantly improves the flatness and mechanical properties of pulp molding products. Furthermore, the design incorporates quick-assembly and disassembly via positioning holes and guide rod assemblies.

Description

Technical Field

[0001] This utility model relates to the field of pulp molding technology, and in particular to an improved web-laying structure for pulp molding suction film. Background Technology

[0002] In the pulp molding process, the web-laying structure of the pulp-absorbing membrane has a significant impact on product quality and production efficiency. Traditional pulp molding membrane web-laying structures suffer from uneven web formation and inconvenient adjustments, leading to inconsistent quality of the produced pulp molding products and hindering the development of the pulp molding industry. Therefore, there is an urgent need for an improved web-laying structure for pulp molding membranes that can solve these problems.

[0003] For example, application number "CN211922086U" describes a solar-powered pulp molding drying device, comprising a drying chamber, a conveyor belt, a solar hot water tank, radiators, dehumidifiers, pipes, a pulp tank, and parallel blowers. The drying chamber has a preheating zone, a high-temperature zone, an insulation zone, and a drying tunnel connecting these zones. The conveyor belt is laid within the drying tunnel. Each temperature zone has an independent parallel blower and radiator below the conveyor belt, and an independent dehumidification port and dehumidifier at the top. The solar hot water tank is connected to the radiator in the high-temperature zone. The dehumidifier in the high-temperature zone is connected to the radiators in the preheating and insulation zones via pipes. The dehumidifiers in the preheating and insulation zones are connected to the pulp tank via pipes. The parallel blowers are located above the radiators, and each blower includes multiple parallel-placed fan blades connected in series to blow air upwards. This device is energy-saving and environmentally friendly, reducing drying costs. It not only makes full use of thermal energy but also dries the paper and plastic uniformly, accelerating production efficiency. Utility Model Content

[0004] To overcome the technical defects of the existing technology, this utility model provides an improved web laying structure for pulp molding suction film. The traditional pulp molding suction film web laying structure has problems such as uneven web laying and inconvenient adjustment during use, resulting in unstable quality of the pulp molding products produced.

[0005] The technical solution adopted by this utility model is: a cover mechanism with an internal hollow structure, a suction mold installed at the bottom of the cover mechanism, and a guide frame assembly fixedly connected to the outside of the cover mechanism, with a total of four guide frame assemblies;

[0006] The four guide frame assemblies are fixedly connected to the four corners of the outer side of the cover mechanism. The inner side of each of the four guide frame assemblies is fixedly connected to a longitudinally arranged servo push rod. The bottom end of each of the four servo push rods is fixedly connected to a connecting block. Two connecting rods are fixedly connected in a straight array on the bottom end surface of the connecting block. The outer circumference of the connecting rod is provided with an external thread on the side away from the connecting block and is screwed with a nut.

[0007] Preferably, a guide block assembly is fixedly connected to the outer side of the suction mold. There are four guide block assemblies in total, with each pair of longitudinally adjacent guide block assemblies forming a group. The two groups of guide block assemblies are fixedly connected to the front and rear sides of the suction mold in opposite directions.

[0008] Preferably, both sets of guide block assemblies have two sliders with protruding structures fixedly connected to each other on their outer sides. The sliders and guide block assemblies are provided with through holes that pass through both the upper and lower sides, and these through holes match the connecting rods.

[0009] Preferably, the suction mold has suction holes arranged in a rectangular array on its inner bottom surface. The suction holes have a bidirectional through-hole structure on both the top and bottom sides, and the suction holes and the suction mold together form the suction structure.

[0010] Preferably, a base plate is fixedly connected to the inner side of the suction mold. The base plate has four locations, and the four base plates are fixedly connected to the four corners inside the suction mold.

[0011] Preferably, a cylindrical guide rod assembly is fixedly connected to the top surface of each of the four base plates, and a first multi-mesh net is laid on the top of the guide rod assembly.

[0012] Preferably, the top of the guide rod assembly is further provided with a second multi-mesh mesh and a third multi-mesh mesh in sequence. The four corners of the first multi-mesh mesh, the second multi-mesh mesh, and the third multi-mesh mesh are provided with positioning holes that match the guide rod assembly. The mesh counts of the first multi-mesh mesh, the second multi-mesh mesh, and the third multi-mesh mesh are thirty, forty, and one hundred, respectively.

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

[0014] 1. In this utility model, the guide frame components, servo push rods, connecting rods, and suction mold guide block components and sliders at the four corners of the cover mechanism form a mechanical structure for four-way synchronous adjustment. The height and horizontal position of the suction mold can be adjusted in real time according to production needs, which solves the problem of fixed position and inconvenient adjustment of the suction mold in the traditional structure, avoids uneven mesh thickness caused by position deviation, and significantly improves mesh stability.

[0015] 2. In this utility model, a three-layer multi-mesh screen (first multi-mesh screen, second multi-mesh screen, and third multi-mesh screen) supported by a base plate and guide rod assembly on the inner side of the pulp suction mold utilizes the graded filtration function of different mesh sizes to sequentially achieve coarse filtration, fine filtration, and ultra-fine sieving of fibers. Compared with the traditional single-screen filter structure, it can more effectively remove impurities from the pulp and evenly distribute fibers, fundamentally solving the technical problem of uneven screen laying in traditional methods. This significantly improves the flatness and mechanical properties of pulp molding products. At the same time, the quick-disassembly and assembly design of the positioning holes and guide rod assembly supports flexible replacement of filter screens with different mesh combinations, significantly improving the equipment's adaptability to diverse products.

[0016] 3. The guide rod assembly is supported by the base plate at the four corners of the inner side of the suction mold. The top of the guide rod assembly is successively laid with the first multi-mesh mesh, the second multi-mesh mesh, and the third multi-mesh mesh. The positioning holes at the four corners of the three meshes are adapted and positioned to fit the guide rod assembly. The pulp adsorbed onto the surface of the suction mold passes through the three meshes with increasing mesh numbers (30, 40, and 100 respectively). The coarse mesh initially traps the fibers, while the fine mesh further filters impurities and evenly distributes the fibers, ultimately forming a dense and uniform fiber layer on the surface of the suction mold, completing the mesh laying process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the front side view of the disassembled mesh structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the combined structure of the mesh laying structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the combined structure of the cover mechanism and the vacuum tube of the mesh-laying structure of this utility model.

[0020] Figure 4 This is a front view schematic diagram of the mesh laying structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the combined structure of the first and second multi-mesh meshes in the mesh laying structure of this utility model.

[0022] Figure 6 This is a schematic diagram of the suction mold structure of the mesh laying structure of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Cover mechanism; 101. Vacuum tube; 1011. Guide frame assembly; 1012. Servo push rod; 1013. Connecting block; 1014. Connecting rod; 1015. Nut; 2. Suction mold; 201. Guide block assembly; 2011. Slider; 2012. Suction hole; 2013. Base plate; 2014. Guide rod assembly; 3. First multi-mesh screen; 301. Second multi-mesh screen; 3011. Third multi-mesh screen; 3012. Positioning hole. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] like Figures 1-6 As shown, this embodiment provides an improved pulp molding suction film web structure, including a hollow cover mechanism 1, a suction mold 2 installed at the bottom of the cover mechanism 1, and a guide frame assembly 1011 fixedly connected to the outside of the cover mechanism 1. The guide frame assembly 1011 has four locations.

[0026] Four guide frame assemblies 1011 are fixedly connected to the four corners of the outer side of the cover mechanism 1. Each of the four guide frame assemblies 1011 has a longitudinally arranged servo push rod 1012 fixedly connected to its inner side. Each of the four servo push rods 1012 has a connecting block 1013 fixedly connected to its bottom end. Two connecting rods 1014 are fixedly connected in a straight array on the bottom end face of the connecting block 1013. The outer circumferential surface of the connecting rod 1014 has an external thread on the side away from the connecting block 1013 and is screwed with a nut 1015.

[0027] Four guide frame assemblies 1011 are set at the four corners of the outer side of the cover mechanism 1. The inner side of each guide frame assembly 1011 is connected to the connecting block 1013 with the connecting rod 1014 via the servo push rod 1012. The connecting rod 1014 is connected to the slider 2011 of the outer guide block assembly 201 of the suction mold 2 via the nut 1015. The position of the suction mold 2 can be precisely adjusted by the servo push rod 1012 to achieve stability control of the net laying process and solve the problem of inconvenient adjustment of traditional structures.

[0028] Among them, the outer side of the suction mold 2 is fixedly connected with a guide block assembly 201. There are four guide block assemblies 201 in total. Each pair of longitudinally adjacent guide block assemblies 201 forms a group. The two groups of guide block assemblies 201 are fixedly connected to the front and rear sides of the suction mold 2 in opposite directions.

[0029] A vacuum environment can be formed by the vacuum tube 101 in the front through hole of the cover mechanism 1, which is connected to the interior. The pulp is sucked through the pulp suction hole 2012 at the bottom of the pulp suction mold 2. Combined with the position adjustment function of the guide frame assembly 1011 and the servo push rod 1012, the uniformity of pulp suction is ensured and the quality of wire laying is improved.

[0030] Among them, the outer sides of the two sets of guide block assemblies 201 are fixedly connected with two protruding sliders 2011. The sliders 2011 and the guide block assemblies 201 are both provided with bidirectional through holes on the upper and lower sides. These through holes match the connecting rod 1014. The suction mold 2 has suction holes 2012 in a rectangular array on the inner bottom surface. The suction hole 2012 has a bidirectional through structure on both the top and bottom sides. The suction hole 2012 and the suction mold 2 together form the suction structure. The bottom plate 2013 is fixedly connected to the inner side of the suction mold 2. There are four bottom plates 2013. The four bottom plates 2013 are fixedly connected to the four corners inside the suction mold 2. A cylindrical guide rod assembly 2014 is fixedly connected to the top surface of each of the four bottom plates 2013. A first multi-mesh mesh 3 is laid on the top of the guide rod assembly 2014. A second multi-mesh mesh 301 and a third multi-mesh mesh 3011 are also laid on the top of the guide rod assembly 2014 in sequence. The first multi-mesh mesh 3, the second multi-mesh mesh 301, and the third multi-mesh mesh 3011 are all provided with positioning holes 3012 that match the guide rod assembly 2014 at the four corners inside. The mesh counts of the first multi-mesh mesh 3, the second multi-mesh mesh 301, and the third multi-mesh mesh 3011 are thirty, forty, and one hundred, respectively.

[0031] Two sets of guide block assemblies 201 are respectively set on the front and rear sides of the suction mold 2. Each set consists of two longitudinally adjacent guide block assemblies 201. The outer slider 2011 cooperates with the connecting rod 1014 to form a stable sliding connection structure. Combined with the drive of the servo push rod 1012, the suction mold 2 can be moved accurately in the longitudinal direction to ensure the accuracy of the net laying position.

[0032] In use, the inside of the cover mechanism 1 is a hollow structure. The vacuum tube 101 fixed in the front through hole is connected to the cover mechanism 1. A negative pressure environment is formed by connecting an external vacuum device. The rectangular array of suction holes 2012 opened at the bottom of the suction mold 2 is connected to the cover mechanism 1. When the vacuum environment is established, the pulp is adsorbed onto the surface of the suction mold 2 through the suction holes 2012 under the action of negative pressure, forming a preliminary pulp adsorption layer.

[0033] The guide frame assemblies 1011 fixed at the four corners of the outer side of the cover mechanism 1 are all equipped with longitudinal servo push rods 1012. The bottom of the servo push rods 1012 is fixed with two connecting rods 1014 through the connecting block 1013. The connecting rods 1014 pass through the through holes of the slider 2011 of the guide block assembly 201 on the front and rear sides of the suction mold 2 (each group of guide block assembly 201 consists of two longitudinally adjacent guide block assemblies 201, and there are two groups facing each other). They are locked with nuts 1015. When it is necessary to adjust the position of the suction mold 2, the servo push rods 1012 extend and retract to drive the connecting block 1013 to move. The connecting rods 1014 slide in the through holes of the slider 2011, so as to realize the precise lifting and horizontal calibration of the suction mold 2 in the longitudinal direction and ensure the accuracy of the contact position between the suction mold 2 and the pulp.

[0034] The bottom plate 2013 at the four corners of the inner side of the suction mold 2 supports the guide rod assembly 2014. The top of the guide rod assembly 2014 is sequentially covered with a first multi-mesh screen 3, a second multi-mesh screen 301, and a third multi-mesh screen 3011. The positioning holes 3012 at the four corners of the three-layer screen are adapted and positioned to the guide rod assembly 2014. The pulp adsorbed onto the surface of the suction mold 2 passes through the three layers of screen with increasing mesh counts (30, 40, and 100 mesh counts respectively). The coarse screen initially traps the fibers, and the fine screen further filters impurities and evenly distributes the fibers. Finally, a dense and uniform fiber layer is formed on the surface of the suction mold 2, completing the screen laying process.

[0035] 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 may be made to this utility model without departing from the spirit and scope of the invention. All such changes and modifications fall within the scope of the invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A modified pulp molding suction film web structure, comprising a housing mechanism (1) with an internal hollow structure, wherein a suction mold (2) is installed at the bottom end of the housing mechanism (1), characterized in that: The outer side of the cover mechanism (1) is fixedly connected to a guide frame assembly (1011), and the guide frame assembly (1011) has four locations. The four guide frame assemblies (1011) are fixedly connected to the four corners of the outer side of the cover mechanism (1). The inner side of each of the four guide frame assemblies (1011) is fixedly connected to a longitudinally arranged servo push rod (1012). The bottom end of each of the four servo push rods (1012) is fixedly connected to a connecting block (1013). Two connecting rods (1014) are fixedly connected in a straight array on the bottom end surface of the connecting block (1013). The outer circumferential surface of the connecting rod (1014) away from the connecting block (1013) is provided with an external thread and a nut (1015) is screwed on.

2. The improved pulp molding suction film web structure according to claim 1, characterized in that: The front end of the cover mechanism (1) is provided with a through hole, and a vacuum tube (101) is fixedly connected inside the through hole. The vacuum tube (101) is in communication with the cover mechanism (1).

3. The improved pulp molding suction film web structure according to claim 1, characterized in that: The suction mold (2) is fixedly connected to the outside of the guide block assembly (201). There are four guide block assemblies (201), and each pair of longitudinally adjacent guide block assemblies (201) forms a group. The two groups of guide block assemblies (201) are fixedly connected to the front and rear sides of the suction mold (2) in opposite directions.

4. The improved pulp molding suction film web structure according to claim 3, characterized in that: Both sets of guide block assemblies (201) have sliders (2011) with two protruding structures fixedly connected to each other on the outside. The sliders (2011) and guide block assemblies (201) are provided with through holes that pass through both the upper and lower sides. These through holes match the connecting rod (1014).

5. The improved pulp molding suction film web structure according to claim 1, characterized in that: The suction mold (2) has suction holes (2012) arranged in a rectangular array on the inner bottom surface; the suction holes (2012) are bidirectional through structures on both the upper and lower sides, and the suction holes (2012) and the suction mold (2) together form the suction structure.

6. The improved pulp molding suction film web structure according to claim 1, characterized in that: The inner side of the suction mold (2) is fixedly connected to a base plate (2013). There are four base plates (2013), which are fixedly connected to the four corners inside the suction mold (2).

7. The improved pulp molding suction film web structure according to claim 6, characterized in that: A cylindrical guide rod assembly (2014) is fixedly connected to the top surface of the four base plates (2013), and a first multi-mesh net (3) is laid on the top of the guide rod assembly (2014).

8. The improved pulp molding suction film web structure according to claim 7, characterized in that: The top of the guide rod assembly (2014) is also provided with a second multi-mesh mesh (301) and a third multi-mesh mesh (3011). The first multi-mesh mesh (3), the second multi-mesh mesh (301), and the third multi-mesh mesh (3011) are all provided with positioning holes (3012) that match the guide rod assembly (2014) at the four corners. The mesh counts of the first multi-mesh mesh (3), the second multi-mesh mesh (301), and the third multi-mesh mesh (3011) are thirty, forty, and one hundred, respectively.

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