Multifunctional inclined net middle test paper machine

Abstract

The invention discloses a multifunctional inclined net middle test paper machine which comprises an inclined net forming mechanism, and the inclined net forming mechanism comprises an upper forming net and a lower forming net which are oppositely arranged and a nozzle mechanism arranged at the gap input end of the upper forming net and the lower forming net. The nozzle mechanism comprises a fixed regulation and control block, a movable regulation and control block movably connected with the fixed regulation and control block, a nozzle arranged in a gap between the fixed regulation and control block and the movable regulation and control block and a self-regulation and control tank, and a thickness measuring roller is arranged at the position, opposite to the slurry layer, of the upper forming net in a rolling mode. According to the device, the position of the movable regulation and control block can be adjusted according to the discharged paper pulp amount, the discharged paper pulp amount is adjusted, the paper pulp is controlled to be placed into the self-regulation and control tank to be pre-stored, redundant paper pulp is controlled to be discharged or supplemented in a self-adaptive mode according to the thickness of a paper pulp layer, the paper pulp spraying amount in the designated time is kept stable, and the paper pulp spraying efficiency is improved. Therefore, regulation and control by frequently controlling the discharge amount of the nozzle are reduced, so that the discharge port of the nozzle is not easy to block, and the maintenance period is shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of paper machines, and particularly to a multi-functional inclined screen pilot paper machine. Background Art

[0002] The inclined screen pilot paper machine is mainly used in the research and development stage of special papers and non-woven fabrics. Through small-scale continuous production, it verifies the applicability of fiber raw materials, the rationality of process parameters, and the compliance of product performance (such as air permeability, strength, and structural uniformity). For example, for long fiber materials such as synthetic fibers, carbon fibers, or glass fibers, the equipment can simulate actual production conditions to test their dispersion, forming, and dehydration effects.

[0003] In the prior art, the paper machine evenly disperses and quantitatively conveys the pulp through a flow delivery system. The nozzle sprays the pulp into a double-layer inclined screen structure and gradually conveys it along with the inclined screen structure to promote the directional arrangement and rapid dehydration of long fibers. The water is squeezed out of the pulp through the double-layer designed inclined screen. The thickness of the pulp is controlled by the spraying amount of the nozzle. When the thickness of the pulp is large or small, it is necessary to adaptively increase or decrease the spraying amount of the nozzle so that the amount of pulp sprayed within a preset time remains constant to ensure the uniform regulation of the paper thickness. Since the density of the pulp is large, adjusting the spraying amount by adjusting the aperture of the nozzle easily causes the pulp to block the nozzle, affecting production. Summary of the Invention

[0004] Based on this, it is necessary to provide a multi-functional inclined screen pilot paper machine for the above technical problems.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: A multi-functional inclined screen pilot paper machine includes a machine body. A headbox is arranged on the machine body. An inclined screen forming mechanism is correspondingly arranged downstream of the headbox. A conveying assembly is correspondingly arranged downstream of the inclined screen forming mechanism. A drying assembly is correspondingly arranged downstream of the conveying assembly. A winding assembly is correspondingly arranged downstream of the drying assembly, including: the inclined screen forming mechanism includes an upper forming screen and a lower forming screen arranged opposite to each other and a nozzle mechanism placed at the input end of the gap between the upper forming screen and the lower forming screen. The pulp is extruded by the upper forming screen and the lower forming screen to form a pulp layer. The nozzle mechanism includes a fixed adjustment block, a moving adjustment block movably connected to the fixed adjustment block, a nozzle placed at the gap between the fixed adjustment block and the moving adjustment block, and a self-adjusting tank. The input end of the nozzle is communicated with the inner cavity of the headbox. An adjusting telescopic member is installed on the moving adjustment block. The self-adjusting tank is communicated with the gap between the fixed adjustment block and the moving adjustment block through a pipeline penetrating the fixed adjustment block. A piston plate is vertically slidably connected to the inner cavity of the self-adjusting tank. A thickness measuring roller is rotatably arranged at the relative position between the upper forming screen and the pulp layer. A pressure sensor is embedded in the mounting arm of the thickness measuring roller.

[0006] As a preferred embodiment of the multi-functional inclined screen medium paper machine provided by the present invention, the outer ring of the nozzle is connected to the corresponding fixed control block and moving control block through an elastic sealing layer, so that when the moving control block moves away from or approaches the fixed control block, the outer ring of the nozzle is hermetically connected to the corresponding fixed control block and moving control block through the elastic sealing layer, preventing the pulp from flowing out through the gap.

[0007] As a preferred embodiment of the multi-functional inclined screen medium paper machine provided by the present invention, a distance sensor corresponding to the top of the inner cavity of the self-regulating tank is installed on the piston plate. A regulating pipe communicating with the inner cavity of the self-regulating tank is provided at the upper end of the self-regulating tank. A solenoid valve I is installed on the regulating pipe. An air pump is externally connected to the regulating pipe. When the pressure at the top of the piston plate is relatively high, it can push the piston plate downward to introduce the pulp into the gap between the fixed control block and the moving control block. When the pressure at the top of the piston plate is not sufficient to push the piston plate downward, by controlling the opening of the solenoid valve I and the operation of the air pump, the pressure at the top of the piston plate is increased, and the pulp is smoothly pushed into the gap between the fixed control block and the moving control block, better supplementing the pulp. The distance between the piston plate and the top of the self-regulating tank is detected by the distance sensor, thereby judging the pulp capacity in the distance sensor, facilitating flexible regulation.

[0008] As a preferred embodiment of the multi-functional inclined screen medium paper machine provided by the present invention, a forming intelligent controller is provided on the machine body. A detection module and a thickness regulation module are provided on the forming intelligent controller. The detection module is respectively in signal connection with the thickness regulation module, the distance sensor and the pressure sensor. The thickness regulation module is respectively in signal connection with the adjusting telescopic member, the solenoid valve I and the air pump.

[0009] As a preferred embodiment of the multi-functional inclined screen medium paper machine provided by the present invention, a proximity switch is installed in the upper part of the inner cavity of the self-regulating tank. An overflow pipe communicating with the inner cavity of the self-regulating tank is provided at the lower end of the self-regulating tank. A solenoid valve II is installed on the overflow pipe. A protection module is also provided on the forming intelligent controller. The detection module is respectively in signal connection with the protection module and the proximity switch. The protection module is in signal connection with the solenoid valve II. When the pulp enters the self-regulating tank and gradually pushes the piston plate upward, when the piston plate contacts the proximity switch, the proximity switch sends a position signal to the detection module, and the detection module sends a protection signal to the protection module. The protection module judges that the self-regulating tank is at the storage upper limit. At this time, the protection module controls the solenoid valve II to open, and the pulp in the self-regulating tank is discharged through the overflow pipe. When the piston plate moves away from and disengages from the proximity switch, the protection module judges that the self-regulating tank is not at the storage upper limit. At this time, the protection module controls the solenoid valve II to close, which can monitor the pulp storage amount in the self-regulating tank in real time and avoid the situation that the self-regulating tank is damaged due to excessive pulp.

[0010] As a preferred embodiment of the multifunctional inclined screen medium paper machine provided by the present invention, a plurality of water collecting tanks are arranged at positions corresponding to the slurry layer on the lower forming net, and the plurality of water collecting tanks are connected in series through a drain pipe. An upstream pressing roller and a downstream pressing roller are correspondingly arranged at positions corresponding to the water collecting tanks on the upper forming net. The upstream pressing roller is arranged upstream of the downstream pressing roller, and an upstream telescopic member is installed on the upstream pressing roller, and a downstream telescopic member is installed on the downstream pressing roller.

[0011] As a preferred embodiment of the multifunctional inclined screen medium paper machine provided by the present invention, an upstream flow sensor is installed in the water collecting tank corresponding to the upstream pressing roller, and a downstream flow sensor is installed in the water collecting tank corresponding to the downstream pressing roller. The upstream part of the slurry layer is squeezed and drained of water. The water squeezed out from the slurry layer will enter the water collecting tank and be discharged through the drain pipe. At this time, by controlling the upstream telescopic member to work, the upstream pressing roller is controlled to approach or move away from the lower forming net, so as to control the squeezing force on the slurry layer. The discharged water enters the water collecting tank, and the squeezed water will enter the water collecting tank and be detected by the upstream flow sensor; similarly, by controlling the downstream telescopic member to work, the downstream pressing roller is controlled to approach or move away from the lower forming net, so as to control the squeezing force on the slurry layer, and the downstream part of the slurry layer is squeezed and drained of water. The discharged water enters the water collecting tank and is detected by the corresponding downstream flow sensor; by controlling the squeezing forces on the upstream and downstream of the slurry layer to decrease in sequence, the corresponding drainage volumes on the upstream and downstream decrease in sequence, so that the uniform squeezing and drainage of the slurry layer can be controlled, and the situation of uneven thickness of the formed slurry layer can be avoided. At this time, the drainage volume detected by the upstream flow sensor is always greater than the drainage volume detected by the downstream flow sensor.

[0012] As a preferred embodiment of the multifunctional inclined screen medium paper machine provided by the present invention, a water control module is further provided on the forming intelligent controller. The detection module is respectively connected to the water control module, the upstream flow sensor and the downstream flow sensor in signal. The water control module is respectively connected to the upstream telescopic member and the downstream telescopic member in signal. When squeezing and draining the pulp layer through the upper forming screen and the lower forming screen, the water discharged from the upstream of the pulp layer is detected by the upstream flow sensor, and the water discharged from the downstream of the pulp layer is detected by the downstream flow sensor. The upstream flow sensor and the downstream flow sensor send the flow rate values to the detection module. The detection module compares the flow rate values of the upstream flow sensor and the downstream flow sensor. When the detection module determines that the flow rate value of the upstream flow sensor is greater than the flow rate value of the downstream flow sensor, it is determined to be in a qualified state; when the detection module determines that the flow rate value of the upstream flow sensor is less than or equal to the flow rate value of the downstream flow sensor, it is determined that the extrusion pressure of the upstream of the pulp layer is less than the extrusion pressure of the downstream of the pulp layer. At this time, the detection module sends a control signal to the water control module, and the water control module controls the upstream telescopic member to extend, increasing the downward pressure of the upstream pressure roller on the lower forming screen, and at the same time controls the downstream telescopic member to shorten, reducing the downward pressure of the downstream pressure roller on the lower forming screen, so as to increase the drainage volume of the upstream of the pulp layer and reduce the drainage volume of the downstream of the pulp layer, ensure uniform extrusion and drainage of the pulp layer, and improve the quality of the produced pulp layer.

[0013] As a preferred embodiment of the multifunctional inclined screen medium paper machine provided by the present invention, the output end of the drain pipe is externally connected to a drainage system. The top opening of the water collecting tank is fitted with the bottom of the lower forming screen. The water discharged from the drain pipe is discharged through the drainage system, which is convenient for treating and utilizing the sewage.

[0014] As a preferred embodiment of the multifunctional inclined screen medium paper machine provided by the present invention, a plurality of rollers are provided on both the upper forming screen and the lower forming screen. A driving motor is installed on one of the rollers. The shapes of the upper forming screen and the lower forming screen are positioned by the plurality of rollers, and the upper forming screen and the lower forming screen continuously squeeze and discharge the pulp to form a pulp layer, and the upper forming screen and the lower forming screen are controlled to roll by the driving motor.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The multifunctional inclined screen medium paper machine provided by the present invention can adjust the position of the dynamic control block according to the discharged pulp volume, adjust the discharged pulp volume, control the pulp to be placed in the self-regulating tank for pre-storage, and adaptively control the discharge or supplement of the excess pulp according to the thickness of the pulp layer, so that the pulp spraying volume within a specified time is kept stable, thereby reducing the regulation by frequently controlling the discharge volume of the nozzle, making the discharge port of the nozzle not easily blocked, and reducing its maintenance cycle.

[0016] 2. A multifunctional inclined screen medium paper machine provided by the present invention. By setting a forming intelligent controller, the pulp discharged from the nozzle enters the gap between the fixed regulating block and the moving regulating block, and is discharged between the upper forming screen and the lower forming screen. Through the extrusion of the upper forming screen and the lower forming screen, a slurry layer is formed. During this process, the pressure sensor feeds back the detected pressure data to the detection module. The detection module judges the thickness of the corresponding slurry layer based on the pressure data. The detection module presets the normal thickness data of the slurry layer. When it is judged that the thickness of the slurry layer is less than the preset thickness of the slurry layer, the detection module sends a regulation signal to the thickness regulation module. The thickness regulation module controls the telescopic member to extend, compresses the space between the fixed regulating block and the moving regulating block to reduce the pulp discharge amount, and the pulp enters the self-regulating tank after being compressed; when it is judged that the thickness of the slurry layer returns to the preset thickness of the slurry layer, the thickness regulation module controls the telescopic member to reset, and at this time, the pulp discharged from the nozzle normally enters the upper forming screen and the lower forming screen; when it is judged that the thickness of the slurry layer is greater than the preset thickness of the slurry layer, the detection module sends a regulation signal to the thickness regulation module. The thickness regulation module controls the telescopic member to shorten, and controls the solenoid valve 1 to open and the air pump to work. The air pump pushes the piston plate downward and pushes the material into the gap between the fixed regulating block and the moving regulating block for supplementation; when it is judged that the thickness of the slurry layer returns to the preset thickness of the slurry layer, the thickness regulation module controls the telescopic member to reset, the solenoid valve 1 to close, and the air pump to stop working. At this time, the pulp discharged from the nozzle normally enters the upper forming screen and the lower forming screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is the overall structure schematic diagram provided by the present invention; Figure 2 It is the partial structure schematic diagram of the inclined screen forming mechanism provided by the present invention; Figure 3 It is provided by the present invention Figure 2 The enlarged view at A; Figure 4 It is the structure schematic diagram when the self-regulating tank stores materials provided by the present invention; Figure 5 It is the structure schematic diagram when the self-regulating tank discharges materials provided by the present invention; Figure 6 It is the control principle block diagram of the forming intelligent controller provided by the present invention; Figure 7 It is the structure schematic diagram when the self-regulating tank discharges externally provided by the present invention.

[0019] The markings in the figure are explained as follows: 1. Headbox; 2. Inclined screen forming mechanism; 3. Conveying assembly; 4. Drying assembly; 5. Rewinding assembly; 6. Forming intelligent controller; 7. Upper forming screen; 8. Lower forming screen; 9. Slurry layer; 10. Fixed regulating block; 11. Moving regulating block; 12. Nozzle; 13. Adjusting telescopic member; 14. Self-regulating tank; 15. Piston plate; 16. Thickness measuring roller; 17. Pressure sensor; 18. Upstream pressure roller; 19. Upstream telescopic member; 20. Downstream pressure roller; 21. Downstream telescopic member; 22. Drain pipe; 23. Water collecting tank; 24. Upstream flow sensor; 25. Downstream flow sensor; 26. Solenoid valve II; 27. Overflow pipe; 28. Distance sensor; 29. Proximity switch; 30. Regulating pipe; 31. Solenoid valve I. Detailed implementation manners

[0020] In order to enable those skilled in the art of this technology to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] In order to enable those skilled in the art of this technology to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments can be combined with each other.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Embodiment

[0023] Please refer to Figures 1 - 5, A multifunctional inclined wire medium paper machine, including a machine body, on which a headbox 1 is provided. Correspondingly, an inclined wire forming mechanism 2 is arranged downstream of the headbox 1, a conveying assembly 3 is arranged downstream of the inclined wire forming mechanism 2, a drying assembly 4 is arranged downstream of the conveying assembly 3, and a winding assembly 5 is arranged downstream of the drying assembly 4. During operation, the pulp enters the inclined wire forming mechanism 2 from the headbox 1, is formed by the inclined wire forming mechanism 2, and the water in the pulp is gradually squeezed out during the forming process. The formed pulp passes through the conveying assembly 3 and the drying assembly 4 in sequence to form paper, and is wound by the winding assembly 5. The above technical solutions are all well-known papermaking steps and equipment in the technical field, which are prior arts and not within the protection scope of this application. The specific structures and working principles of them will not be elaborated in the technical solutions of this application.

[0024] It is worth mentioning that, such as Figures 2 - 5As shown in the figure, the inclined wire forming mechanism 2 includes an upper forming wire 7 and a lower forming wire 8 which are oppositely arranged, and a nozzle mechanism disposed at the input end of the gap between the upper forming wire 7 and the lower forming wire 8. The pulp is extruded by the upper forming wire 7 and the lower forming wire 8 to form a pulp layer 9. The nozzle mechanism includes a fixed control block 10, a moving control block 11 movably connected to the fixed control block 10, a nozzle 12 disposed at the gap between the fixed control block 10 and the moving control block 11, and a self-regulation tank 14. The input end of the nozzle 12 is communicated with the inner cavity of the headbox 1. An adjusting telescopic member 13 is installed on the moving control block 11. The pulp in the headbox 1 is discharged through the nozzle 12 into the gap between the fixed control block 10 and the moving control block 11, and then discharged between the upper forming wire 7 and the lower forming wire 8 to form a pulp layer 9. By controlling the operation of the adjusting telescopic member 13, the moving control block 11 is driven to approach or move away from the fixed control block 10, so as to adjust the size of the gap between the fixed control block 10 and the moving control block 11, and thus adjust the amount of pulp discharged between the upper forming wire 7 and the lower forming wire 8. The self-regulation tank 14 is communicated with the gap between the fixed control block 10 and the moving control block 11 through a pipeline penetrating the fixed control block 10. A piston plate 15 is vertically slidably connected to the inner cavity of the self-regulation tank 14. A thickness measuring roller 16 is rotatably disposed at the relative position between the upper forming wire 7 and the pulp layer 9. A pressure sensor 17 is embedded in the mounting arm of the thickness measuring roller 16. By the thickness measuring roller 16 rolling closely against the upper forming wire 7, when the thickness of the formed pulp layer 9 changes, the thickness measuring roller 16 will fluctuate with the change of the thickness of the pulp layer 9. The fluctuating thickness measuring roller 16 generates a reaction force on its mounting arm. By detecting the reaction force generated by the thickness measuring roller 16 through the pressure sensor 17, the thickness of the corresponding pulp layer 9 can be calculated. When the pulp with a preset discharge amount enters between the upper forming wire 7 and the lower forming wire 8, when it is judged that the pulp thickness at the corresponding position is too much, in order to ensure the uniform thickness of the pulp layer 9, it is necessary to appropriately reduce the pulp discharge amount to remove the excess pulp amount. When the moving control block 11 is controlled to approach the fixed control block 10 by the adjusting telescopic member 13, the gap between the two is reduced and the pulp discharge amount is decreased. In order to prevent the pulp from accumulating at the output end of the nozzle 12 and affecting the normal output of the nozzle 12, at this time, the compressed excess pulp enters the self-regulation tank 14 through the pipeline and pushes the piston plate 15 to gradually move upward to compress the space at the top of the self-regulation tank 14, and the excess pulp is stored in the self-regulation tank 14;When the thickness of the slurry layer 9 is small, to ensure the uniform thickness of the slurry layer 9, it is necessary to appropriately increase the pulp discharge amount to supplement the lacking pulp amount. At this time, by adjusting the operation of the telescopic member 13, the moving control block 11 is moved away from the fixed control block 10, and the pulp pressure between the two is reduced. At this time, the pressure at the top of the self-regulating tank 14 will reversely push the piston plate 15 downward, and the pulp in the self-regulating tank 14 is pushed into the gap between the moving control block 11 and the fixed control block 10 to supplement the pulp amount. Thus, the position of the moving control block 11 is adjusted according to the discharged pulp amount, the discharged pulp amount is adjusted, and the pulp is controlled to be placed in the self-regulating tank 14 for pre-storage, and the excess pulp discharge or supplement is adaptively controlled according to the thickness of the slurry layer 9, so that the pulp ejection amount within a specified time is kept stable, thereby reducing the regulation by frequently controlling the discharge amount of the nozzle 12, making the discharge port of the nozzle 12 not easily blocked, reducing its maintenance cycle, and the pulp will gradually become uniform through the repeated extrusion and stretching by the upper forming mesh 7 and the lower forming mesh 8 on the inclined screen forming mechanism 2 and the repeated stretching of the conveying assembly 3, and a uniform paper is formed.;

[0025] In addition, as Figure 5 shown, a distance sensor 28 corresponding to the top of the inner cavity of the self-regulating tank 14 is installed on the piston plate 15. A regulating pipe 30 communicating with the inner cavity of the self-regulating tank 14 is provided at the upper end of the self-regulating tank 14. An electromagnetic valve 31 is installed on the regulating pipe 30, and an air pump is externally connected to the regulating pipe 30. When the pressure at the top of the piston plate 15 is large, the piston plate 15 can be pushed downward to introduce the pulp into the gap between the fixed control block 10 and the moving control block 11. When the pressure at the top of the piston plate 15 is not sufficient to push the piston plate 15 downward, by controlling the opening of the electromagnetic valve 31 and the operation of the air pump, the pressure at the top of the piston plate 15 is increased, and the pulp is smoothly pushed into the gap between the fixed control block 10 and the moving control block 11 to better supplement the pulp, and the distance between the piston plate 15 and the top of the self-regulating tank 14 is detected by the distance sensor 28, so as to judge the pulp capacity in the distance sensor 28, which is convenient for flexible regulation.

[0026] In this embodiment, as Figure 6As shown in the figure, a forming intelligent controller 6 is provided on the machine body. A detection module and a thickness control module are provided on the forming intelligent controller 6. The detection module is respectively connected to the thickness control module, the distance sensor 28, and the pressure sensor 17 by signals. The thickness control module is respectively connected to the adjusting telescopic member 13, the first electromagnetic valve 31, and the air pump by signals. The pulp discharged from the nozzle 12 enters the gap between the fixed control block 10 and the moving control block 11, and is discharged between the upper forming mesh 7 and the lower forming mesh 8. Through the extrusion of the upper forming mesh 7 and the lower forming mesh 8, a pulp layer 9 is formed. During this process, the pressure sensor 17 feeds back the detected pressure data to the detection module. The detection module judges the thickness of the corresponding pulp layer 9 based on the pressure data. The normal thickness data of the pulp layer 9 is preset in the detection module. When it is judged that the thickness of the pulp layer 9 is less than the preset thickness of the pulp layer 9, the detection module sends a control signal to the thickness control module. The thickness control module controls the adjusting telescopic member 13 to extend, compresses the space between the fixed control block 10 and the moving control block 11 to reduce the pulp discharge amount, and the compressed pulp enters the self-control tank 14; when it is judged that the thickness of the pulp layer 9 returns to the preset thickness of the pulp layer 9, the thickness control module controls the adjusting telescopic member 13 to reset. At this time, the pulp discharged from the nozzle 12 normally enters the upper forming mesh 7 and the lower forming mesh 8; when it is judged that the thickness of the pulp layer 9 is greater than the preset thickness of the pulp layer 9, the detection module sends a control signal to the thickness control module. The thickness control module controls the adjusting telescopic member 13 to shorten, and controls the first electromagnetic valve 31 to open and the air pump to work. The air pump pushes the piston plate 15 downward to push the pulp into the gap between the fixed control block 10 and the moving control block 11 for supplementation; when it is judged that the thickness of the pulp layer 9 returns to the preset thickness of the pulp layer 9, the thickness control module controls the adjusting telescopic member 13 to reset, the first electromagnetic valve 31 to close, and the air pump to stop working. At this time, the pulp discharged from the nozzle 12 normally enters the upper forming mesh 7 and the lower forming mesh 8.

[0027] Preferably, the outer ring of the nozzle 12 is connected to the corresponding fixed control block 10 and moving control block 11 through an elastic sealing layer. When the moving control block 11 moves away from or approaches the fixed control block 10, the outer ring of the nozzle 12 is hermetically connected to the corresponding fixed control block 10 and moving control block 11 through the elastic sealing layer, avoiding the pulp from flowing out through the gap. A plurality of rollers are provided on both the upper forming mesh 7 and the lower forming mesh 8. A driving motor is installed on one of the rollers. The shapes of the upper forming mesh 7 and the lower forming mesh 8 are positioned by the plurality of rollers, and the upper forming mesh 7 and the lower forming mesh 8 continuously extrude and discharge the pulp to form the pulp layer 9, and the driving motor controls the rolling of the upper forming mesh 7 and the lower forming mesh 8. Embodiment

[0028] Further optimize the multifunctional inclined screen medium paper machine provided in the first embodiment. Different from the first embodiment, as Figure 6 and Figure 7As shown in the figure, a proximity switch 29 is installed at the upper part of the inner cavity of the self-regulating tank 14. An overflow pipe 27 communicating with the inner cavity of the self-regulating tank 14 is provided at the lower end of the self-regulating tank 14. A second solenoid valve 26 is installed on the overflow pipe 27. A protection module is also provided on the forming intelligent controller 6. The detection module is respectively signal-connected to the protection module and the proximity switch 29. The protection module is signal-connected to the second solenoid valve 26. The pulp enters the self-regulating tank 14 and gradually pushes the piston plate 15 to move upward. When the piston plate 15 contacts the proximity switch 29, the proximity switch 29 sends a position signal to the detection module, and the detection module sends a protection signal to the protection module. The protection module determines that the self-regulating tank 14 is at the storage upper limit. At this time, the protection module controls the second solenoid valve 26 to open, and the pulp in the self-regulating tank 14 is discharged through the overflow pipe 27. When the piston plate 15 moves away from and disengages from the proximity switch 29, the protection module determines that the self-regulating tank 14 is not at the storage upper limit. At this time, the protection module controls the second solenoid valve 26 to close, which can real-time monitor the storage amount of pulp in the self-regulating tank 14 and avoid the situation that the self-regulating tank 14 is damaged due to excessive pulp. Embodiment

[0029] Further optimize the multifunctional inclined screen medium paper machine provided in the first embodiment. Different from the first embodiment, when extruding and discharging the pulp layer 9 through the upper forming screen 7 and the lower forming screen 8, in order to ensure the uniformity of the extruded pulp layer 9, it is necessary to gradually extrude and drain water from the pulp layer 9. The amount of water discharged from the pulp layer 9 gradually decreases from upstream to downstream to achieve the purpose of uniform drainage. Please refer to Figure 2 and Figure 6, a plurality of water collecting troughs 23 are arranged on the lower forming wire 8 corresponding to the slurry layer 9. The plurality of water collecting troughs 23 are connected in series through a drain pipe 22. An upstream pressing roller 18 and a downstream pressing roller 20 are correspondingly arranged on the upper forming wire 7 corresponding to the water collecting troughs 23. The upstream pressing roller 18 is arranged upstream of the downstream pressing roller 20. An upstream telescopic member 19 is installed on the upstream pressing roller 18, and a downstream telescopic member 21 is installed on the downstream pressing roller 20. An upstream flow sensor 24 is installed in the water collecting trough 23 corresponding to the upstream pressing roller 18, and a downstream flow sensor 25 is installed in the water collecting trough 23 corresponding to the downstream pressing roller 20. The upstream part of the slurry layer 9 is squeezed to drain water. The water squeezed out from the slurry layer 9 will enter the water collecting trough 23 and be discharged through the drain pipe 22. At this time, by controlling the upstream telescopic member 19 to work, the upstream pressing roller 18 is controlled to approach or move away from the lower forming wire 8, so as to control the squeezing force on the slurry layer 9. The discharged water enters the water collecting trough 23, and the squeezed water will enter the water collecting trough 23 and be detected by the upstream flow sensor 24; similarly, by controlling the downstream telescopic member 21 to work, the downstream pressing roller 20 is controlled to approach or move away from the lower forming wire 8, so as to control the squeezing force on the slurry layer 9. The downstream part of the slurry layer 9 is squeezed to drain water. The discharged water enters the water collecting trough 23 and is detected by the corresponding downstream flow sensor 25; by controlling the squeezing forces on the upstream and downstream of the slurry layer 9 to decrease in sequence, the corresponding drainage volumes on the upstream and downstream decrease in sequence, so that the uniform squeezing drainage of the slurry layer 9 can be controlled, and the situation of uneven thickness of the formed slurry layer 9 can be avoided. At this time, the drainage volume detected by the upstream flow sensor 24 is always greater than the drainage volume detected by the downstream flow sensor 25.

[0030] It is worth mentioning that a water control module is also provided on the forming intelligent controller 6. The detection module is respectively signal-connected to the water control module, the upstream flow sensor 24 and the downstream flow sensor 25. The water control module is respectively signal-connected to the upstream telescopic member 19 and the downstream telescopic member 21. When squeezing and draining the slurry layer 9 through the upper forming mesh 7 and the lower forming mesh 8, the water discharged upstream of the slurry layer 9 is detected by the upstream flow sensor 24, and the water discharged downstream of the slurry layer 9 is detected by the downstream flow sensor 25. The upstream flow sensor 24 and the downstream flow sensor 25 send the flow rate values to the detection module. The detection module compares the flow rate values of the upstream flow sensor 24 and the downstream flow sensor 25. When the detection module determines that the flow rate value of the upstream flow sensor 24 is greater than the flow rate value of the downstream flow sensor 25, it is determined to be in a qualified state; when the detection module determines that the flow rate value of the upstream flow sensor 24 is less than or equal to the flow rate value of the downstream flow sensor 25, it is determined that the extrusion pressure upstream of the slurry layer 9 is less than the extrusion pressure downstream of the slurry layer 9. At this time, the detection module sends a control signal to the water control module, and the water control module controls the upstream telescopic member 19 to extend, increasing the downward pressure of the upstream pressing roller 18 on the lower forming mesh 8, and at the same time controls the downstream telescopic member 21 to shorten, reducing the downward pressure of the downstream pressing roller 20 on the lower forming mesh 8, so as to increase the drainage volume upstream of the slurry layer 9 and reduce the drainage volume downstream of the slurry layer 9, ensuring uniform squeezing and draining of the slurry layer 9 and improving the quality of the produced slurry layer 9.

[0031] In addition, the output end of the drain pipe 22 is externally connected to a drainage system. The top opening of the water collecting tank 23 is attached to the bottom of the lower forming mesh 8. The water discharged from the drain pipe 22 is discharged through the drainage system, which is convenient for treating and utilizing the sewage.

[0032] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium. It can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Obviously, the embodiments described above are only a part of the embodiments of the present invention, rather than all of them. The preferred embodiments of the present invention are shown in the accompanying drawings, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present invention in other related technical fields is similarly within the scope of the patent protection of the present invention.

Claims

1. A multifunctional inclined wire medium paper machine, comprising a machine body, a headbox (1) is arranged on the machine body, an inclined wire forming mechanism (2) is correspondingly arranged downstream of the headbox (1), a conveying assembly (3) is correspondingly arranged downstream of the inclined wire forming mechanism (2), a drying assembly (4) is correspondingly arranged downstream of the conveying assembly (3), and a winding assembly (5) is correspondingly arranged downstream of the drying assembly (4), characterized in that, Comprising: The inclined screen forming mechanism (2) includes an upper forming screen (7) and a lower forming screen (8) arranged oppositely, and a nozzle mechanism disposed at the input end of the gap between the upper forming screen (7) and the lower forming screen (8). Pulp is extruded through the upper forming screen (7) and the lower forming screen (8) to form a slurry layer (9). The nozzle mechanism includes a fixed control block (10), a movable control block (11) movably connected to the fixed control block (10), a nozzle (12) disposed at the gap between the fixed control block (10) and the movable control block (11), and a self-regulating tank (14). The input end of the nozzle (12) is communicated with the inner cavity of the headbox (1). An adjusting telescopic member (13) is installed on the movable control block (11). The self-regulating tank (14) is communicated with the gap between the fixed control block (10) and the movable control block (11) through a pipeline penetrating the fixed control block (10). A piston plate (15) is vertically slidably connected to the inner cavity of the self-regulating tank (14). A thickness measuring roller (16) is rotatably arranged at the position of the upper forming screen (7) opposite to the slurry layer (9). A pressure sensor (17) is embedded in the mounting arm of the thickness measuring roller (16).

2. The multifunctional inclined wire medium paper machine according to claim 1, characterized in that The outer ring of the nozzle (12) is connected to the corresponding fixed control block (10) and movable control block (11) through an elastic sealing layer.

3. A multifunctional inclined screen middle test paper machine according to claim 1, characterized in that, A distance sensor (28) corresponding to the top of the inner cavity of the self-regulating tank (14) is installed on the piston plate (15). A regulating pipe (30) communicated with the inner cavity of the self-regulating tank (14) is arranged at the upper end of the self-regulating tank (14). An electromagnetic valve I (31) is installed on the regulating pipe (30). An air pump is externally connected to the regulating pipe (30).

4. A multi-functional inclined wire medium paper machine according to claim 3, characterized in that, A forming intelligent controller (6) is arranged on the machine body. A detection module and a thickness regulating module are arranged on the forming intelligent controller (6). The detection module is respectively in signal connection with the thickness regulating module, the distance sensor (28), and the pressure sensor (17). The thickness regulating module is respectively in signal connection with the adjusting telescopic member (13), the electromagnetic valve I (31), and the air pump.

5. A multifunctional inclined wire medium paper machine according to claim 4, characterized in that, A proximity switch (29) is installed in the upper part of the inner cavity of the self-regulating tank (14). An overflow pipe (27) communicated with the inner cavity of the self-regulating tank (14) is arranged at the lower end of the self-regulating tank (14). An electromagnetic valve II (26) is installed on the overflow pipe (27). A protection module is also arranged on the forming intelligent controller (6). The detection module is respectively in signal connection with the protection module and the proximity switch (29). The protection module is in signal connection with the electromagnetic valve II (26).

6. The multifunctional inclined screen medium paper machine according to claim 4, characterized in that, A plurality of water collecting tanks (23) are arranged at the position of the lower forming screen (8) corresponding to the slurry layer (9). The plurality of water collecting tanks (23) are connected in series through a drain pipe (22). An upstream pressure roller (18) and a downstream pressure roller (20) are correspondingly arranged at the position of the upper forming screen (7) corresponding to the water collecting tanks (23). The upstream pressure roller (18) is arranged upstream of the downstream pressure roller (20). An upstream telescopic member (19) is installed on the upstream pressure roller (18). A downstream telescopic member (21) is installed on the downstream pressure roller (20).

7. A multi-functional inclined wire medium paper machine according to claim 6, characterized in that, An upstream flow sensor (24) is installed in the water collecting tank (23) corresponding to the upstream pressure roller (18), and a downstream flow sensor (25) is installed in the water collecting tank (23) corresponding to the downstream pressure roller (20).

8. A multifunctional inclined wire medium tester according to claim 7, characterized in that, A water control module is further arranged on the forming intelligent controller (6). The detection module is respectively in signal connection with the water control module, the upstream flow sensor (24) and the downstream flow sensor (25), and the water control module is respectively in signal connection with the upstream telescopic member (19) and the downstream telescopic member (21).

9. The multifunctional inclined wire medium paper machine according to claim 6, wherein, The output end of the drain pipe (22) is externally connected with a drainage system, and the top opening of the water collecting tank (23) is attached to the bottom of the lower forming mesh (8).

10. A multifunctional inclined wire medium tester according to claim 1, characterized in that, A plurality of rollers are arranged on both the upper forming mesh (7) and the lower forming mesh (8), and a driving motor is installed on one of the rollers.

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