A wide hydraulic headbox

Abstract

The present application discloses a wide hydraulic headbox, comprising: a box body; a slurry feeding mechanism and a slurry spraying mechanism, which are arranged on the box body; and a slurry processing mechanism, which is arranged in the box body, wherein the slurry processing mechanism comprises a processing chamber, a driving component and a turbulent chamber arranged in the processing chamber, and the slurry feeding mechanism is connected with the slurry spraying mechanism through the turbulent chamber; wherein the turbulent chamber is deformable, and the driving component is suitable for driving the inner wall of the turbulent chamber to deform into convex sections and concave sections that appear alternately. The present application solves the problem that fiber flocs in the slurry at the slurry outlet pipe of the wide headbox are easily accumulated, thereby increasing the production line output and improving the production efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of pulp processing, and in particular to a wide-width hydraulic headbox. Background Art

[0002] The headbox is an auxiliary device for papermaking and has been widely used in the field of pulp processing. One end of the headbox is connected to the short circulation through the pulp inlet pipe, and the other end transports the pulp to the forming net through the lip flow channel. The design and adjustment of the headbox will affect the composition and dynamic characteristics of the pulp, thereby changing the quality of the paper. The flow of pulp in the headbox is driven by pressure. The pressure of the internal pulp flow is generated by the pulp pump and adjusted by the control system.

[0003] The existing hydraulic headbox includes a stock inlet pipe for feeding stock and a dilution water unit for diluting the stock in the stock inlet pipe. The dilution water unit controls the concentration of the stock, thereby adjusting the concentration of the stock and controlling the lateral full-width performance of the paper web. The diluted stock is processed by the turbulence generator and the stock flow channel respectively, and then the stock flow coming out of the headbox has a uniform paper web performance and is sprayed onto the forming net at the required speed and concentration. The existing headbox is of a single width, and the output of a single production line of this equipment is low and the production efficiency is low. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a wide hydraulic headbox, which solves the problem of easy accumulation of fiber flocs in the slurry at the slurry outlet pipe of the wide headbox, increases the production line output and improves production efficiency.

[0005] To achieve the above objectives, the present application provides a wide-width hydraulic slurry box, comprising: a box body; a slurry feeding mechanism and a spraying mechanism, which are arranged on the box body; and a slurry processing mechanism, which is arranged in the box body, the slurry processing mechanism comprising a processing chamber, a driving assembly and a turbulence chamber arranged in the processing chamber, the slurry feeding mechanism is connected to the spraying mechanism through the turbulence chamber; wherein the turbulence chamber is deformable, and the driving assembly is suitable for driving the inner wall of the turbulence chamber to deform into alternating raised sections and recessed sections.

[0006] Compared with the prior art, the beneficial effect of the present application is that if the existing headbox needs to increase the production line output, the single lateral production area of ​​the paper web can be increased by increasing the headbox width. However, after the headbox width is increased, at the same slurry flow rate, due to the increase in the outlet area, the slurry flows in layers and does not mix with each other, forming a laminar flow or transitional flow, which makes it easy for fiber flocs in the slurry to accumulate at the outlet pipe in the turbulent chamber, which affects the paper quality of the slurry. Therefore, the present application sets a deformable turbulent chamber, and drives the inner wall of the turbulent chamber to deform into alternating convex sections and concave sections through a driving component, and allows the slurry in the turbulent chamber to fully move through reciprocating motion, thereby breaking the dynamic balance of the slurry flow, and then crushing the fiber flocs in the slurry flow, which can effectively disperse the fibers, prevent flocculation, and improve the paper quality with good paper uniformity, and improve production efficiency by widening the box.

[0007] As an improvement, the slurry processing mechanism also includes two flexible waterproof layers, and the two waterproof layers and the inner wall of the box body form the turbulent cavity; the number of the driving components is two, and one driving component corresponds to one waterproof layer, and the driving component includes multiple driving parts, and the multiple driving parts are sequentially connected to the waterproof layer, and the movement of the driving parts forces the waterproof layer to deform. Through the above improvement, the waterproof layer is flexible, that is, the waterproof layer is easy to deform, and the waterproof layer and the inner wall of the box body form a turbulent cavity, and the inner wall of the box body is fixed. Then, the turbulent cavity can be controlled to become a preset cavity through the waterproof layer, and by controlling the movement of a specific single driving part, the waterproof layer is deformed into preset alternating raised sections and recessed sections, so that the slurry in the turbulent cavity can fully move and break the flow balance of the slurry, thereby improving the paper quality.

[0008] As an improvement, the two waterproof layers are arranged up and down, and the multiple driving parts are arranged along the length direction of the waterproof layer; the driving assembly also includes a plurality of connecting wires corresponding to the driving parts, and the driving parts are connected to the waterproof layer through the connecting wires. When the driving part presses against the waterproof layer and moves toward the turbulent cavity to form a convex section, the connecting wires are in a relaxed state, and when the driving part drives the waterproof layer to move away from the turbulent cavity through the connecting wires and forms a concave section, the connecting wires are in a stretched state. Through the above improvement, when the slurry passes through the turbulent cavity, due to the action of gravity, its slurry flow flocs are easily deposited at the bottom of the turbulent cavity. The upper and lower arrangements of the waterproof layer can effectively prevent flocculation when the waterproof layer is deformed. If the driving part is directly connected to the waterproof layer, the waterproof layer is easily pulled and broken when the driving part drives the waterproof layer to move. Therefore, through the connecting wires, the waterproof layer can be kept in a normal state without being stretched when the driving part reciprocates up and down, thereby improving the service life.

[0009] As an improvement, the driving assembly also includes a shaping block assembly arranged along the length direction of the waterproof layer, and the driving unit is connected to the connecting line through part of the shaping block assembly; the shaping block assembly includes two first positioning blocks and multiple first movable blocks, the two first positioning blocks are fixedly arranged and respectively arranged at the two ends of the waterproof layer, the multiple movable blocks are sequentially clamped between the two first positioning blocks, and the first positioning block and the movable block, and the two movable blocks can slide relative to each other in the vertical direction, and the driving unit moves up and down to drive the waterproof layer to be close to the first movable block, so that the raised section and the recessed section form a continuous arc. Through the above improvement, the first positioning block fixes the setting position of the shaping block assembly, and drives the shaping block assembly to move through the driving unit, and the first movable blocks form a stepped arrangement, and the waterproof layer is close to the first movable block through the connecting line, so that a continuous arc is formed between the raised section and the recessed section, so that when the slurry passes through the raised section and the recessed section, strong micro-turbulence can be generated, which can effectively disperse the fibers, prevent flocculation, and achieve good paper uniformity.

[0010] As an improvement, the driving assembly also includes a support plate fixed in the processing chamber and a plurality of fixed rods arranged on the support plate, the first positioning block is fixedly connected to the fixed rod; the shaping block assembly also includes a plurality of second positioning blocks and a plurality of second movable blocks, the second movable block is provided with a connecting block, the fixed rod and the connecting line are respectively fixedly connected to the connecting block, the second positioning block and the second movable block are respectively clamped between the two first movable blocks, the raised section and the recessed section are both formed between the second positioning block and the first positioning block, or between the two second positioning blocks. Through the above improvement, the support plate can not only play a supporting role, but also play a sealing role through sealing treatment, such as adding a sealing ring, to prevent slurry leakage, etc. The second positioning block can be fixed to the support plate by a fixed rod, and plays a positioning role, so that the raised section and the recessed section are both formed between the second positioning block and the first positioning block, or between the two second positioning blocks, thereby accurately defining the forming positions of the raised section and the recessed section to ensure the effective generation of micro-turbulence.

[0011] As an improvement, the first positioning block, the second positioning block, the first movable block and the second movable block are all hollow, the connecting block is arranged in the middle of the second positioning block, and the driving part passes through the supporting plate to be connected with the connecting block. Through the above improvement, the hollow setting can greatly reduce the weight of the shaping block assembly, reduce the production cost and make the components therein move more smoothly when relative to each other, thereby ensuring the proper operation of the shaping block assembly. The supporting plate can also play a limiting role, so that the driving part can only move in the vertical direction to avoid tilting.

[0012] As an improvement, a first limit groove and a first limit block are respectively provided on both sides of the first positioning block, a second limit groove and a second limit block are respectively provided on both sides of the second positioning block, a third limit groove and a third limit block are respectively provided on both sides of the first movable block, and a fourth limit groove and a fourth limit block are respectively provided on both sides of the second movable block; the third limit block is suitable for snapping and cooperating with any limit groove of the first limit groove, the second limit groove, the third limit groove or the fourth limit groove; the third limit groove is suitable for snapping and cooperating with any limit groove of the first limit block, the second limit block, the third limit block or the fourth limit block. Through the above improvement, the position is limited by the first positioning block and the second positioning block, and the first movable block and the second movable block installed by snapping are made to be snap-fitted with the limit groove and the limit block, and the limit position of the limit block's up and down movement is limited by the limit groove, so that the shaping block assembly presents a continuous stepped combination state, and the peak and valley values ​​can be guaranteed to be consistent while moving up and down.

[0013] As an improvement, there are multiple shaping block assemblies, and the multiple shaping block assemblies are parallel to each other and spaced apart along the width direction of the waterproof layer; the driving assembly also includes multiple driving sources and multiple connecting plates, and the multiple connecting plates are parallel to each other and spaced apart along the length direction of the waterproof layer, and the driving sources correspond to the connecting plates one by one, and each connecting plate is provided with multiple connecting rods, and the number of the connecting rods on each connecting plate is consistent with the number of the shaping block assemblies, and the connecting rods pass through the supporting plate and are connected to the driving part, and the driving source drives the connecting plate to move up and down and drives the driving parts on the same column to move up and down synchronously. Through the above improvement, due to the wide width, the length of the turbulent chamber is longer, and the multiple connecting rods on one connecting plate can control the multiple driving parts in the same column, thereby controlling the synchronous movement of the driving parts in the same column on multiple shaping block assemblies, and the multiple driving sources control one connecting plate separately, so that the deformation of the turbulent chamber can be precise and gradual, forming a gradual effect, so that the slurry in the turbulent chamber can fully flow and interact, thereby improving the paper quality.

[0014] As an improvement, the slurry processing mechanism also includes a rotating shaft, a torsion spring is provided on the rotating shaft, the waterproof layer is made of rubber material, one end of the waterproof layer is fixedly arranged in the processing chamber, and the other end is wound on the rotating shaft. Through the above improvement, the rubber has good waterproof performance and is easy to change, and the material cost is low. The waterproof layer is wound on the rotating shaft, and the torsion spring is used to realize automatic flattening of the waterproof layer.

[0015] As an improvement, the spraying mechanism includes an upper lip plate, a lower lip plate and an upper lip plate adjustment assembly. The upper lip plate adjustment assembly includes a slider, a connecting arm rotatably connected to the slider, a support arm rotatably connected to the connecting arm, a drive motor and a worm gear driven by the drive motor. The connecting arm is provided with a rack connected to the worm gear. One end of the upper lip plate is rotatably connected to the box body, and the other end is connected to the support arm. The drive motor drives the worm gear to rotate and adjusts the opening and closing size of the upper lip plate and the lower lip plate through the connecting arm and the support arm. Through the above improvements, the upper lip plate adjustment assembly can achieve partition adjustment and full-width adjustment to ensure the effect of surfing the Internet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic cross-sectional diagram of the overall structure of this application.

[0017] Figure 2 for Figure 1 A is a partial enlarged schematic diagram of the middle part.

[0018] Figure 3 It is a three-dimensional schematic diagram of the slurry processing mechanism in this application.

[0019] Figure 4 This is a schematic diagram of the exploded structure of some of the shaped block components in this application.

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of some shaping block components in this application.

[0021] Figure 6 for Figure 5 Schematic diagram of the state when the middle part of the shaping block component is deformed into a convex segment.

[0022] Figure 7 for Figure 5 Schematic diagram of the state when the middle part of the shaping block component is deformed into a concave segment.

[0023] Figure 8 This is a schematic diagram of the state when the turbulent chamber of the slurry processing mechanism in the present application is flat.

[0024] Fig. 9 It is a schematic diagram of the state when the turbulent chamber of the slurry processing mechanism in the present application is in a concave section and a convex section.

[0025] Fig.10 for Figure 2 A partial enlarged schematic diagram of B in the figure.

[0026] In the figure: 1, box; 2, slurry processing mechanism; 21, rotating shaft; 211, torsion spring; 3, processing chamber; 31, waterproof layer; 32, support plate; 321, fixing rod; 311, raised section; 312, recessed section; 4, turbulent chamber; 5, slurry feeding mechanism; 6, spraying mechanism; 61, upper lip plate; 62, lower lip plate; 63, slider; 64, connecting arm; 641, rack; 65, supporting arm; 66, driving motor; 661, worm gear; 67, scale; 7, driving assembly; 71, driving source; 72, connecting Plate; 721, connecting rod; 73, driving unit; 74, connecting line; 75, pasting plate; 8, shaping block assembly; 81, first positioning block; 811, first limiting groove; 812, first limiting block; 82, second positioning block; 821, second limiting groove; 822, second limiting block; 83, first movable block; 831, third limiting groove; 832, third limiting block; 84, second movable block; 841, fourth limiting groove; 842, fourth limiting block; 843, connecting block; 91, sealing pad; 92, sealing strip. DETAILED DESCRIPTION

[0027] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] In the description of the present application, it should be noted that directional words, such as the terms "center", "up", "down", "front", "back", "vertical", "horizontal", "inside", "outside", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present application.

[0029] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0030] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0031] The present application provides a wide hydraulic headbox, such as Figure 1-10As shown, it comprises a box body 1, an oil-saving slurry feeding mechanism 5 and a slurry spraying mechanism 6 on the box body 1, and a slurry processing mechanism 2 is arranged in the box body 1. The slurry processing mechanism 2 comprises a processing chamber 3, a driving component 7 arranged in the processing chamber 3, and a turbulent chamber 4, and the slurry feeding mechanism 5 is connected with the slurry spraying mechanism 6 through the turbulent chamber 4. Among them, the turbulent chamber 4 is deformable, and the driving component 7 is suitable for driving the inner wall of the turbulent chamber 4 to deform into convex sections 311 and concave sections 312 that appear alternately.

[0032] It should be noted that the inner wall of the turbulent chamber 4 is shaped into alternately appearing convex sections 311 and concave sections 312, such as Figure 8 As shown, the turbulence chamber 4 is in a flat state in its natural state. When the inner wall of the turbulence chamber 4 is flat, it is convenient to clean it by passing clean water, thereby avoiding the accumulation of residues in wrinkles and dead corners. Fig. 9 As shown, under the action of the driving component 7, the inner wall of the turbulent chamber 4 can be deformed into alternating raised sections 311 and recessed sections 312, that is, the raised sections 311 and the recessed sections 312 appear alternately on the inner wall of the turbulent chamber 4 on the same side. It can be understood that, under the action of the driving component 7, the original raised section 311 can also be transformed into the recessed section 312, thereby forming a reciprocating extrusion state, so that the slurry in the turbulent chamber 4 can fully move, forming a strong micro-turbulence and affecting all parts of the turbulent chamber 4.

[0033] Specifically, Figure 3 As shown, the slurry processing mechanism 2 further includes two flexible waterproof layers 31, and the two waterproof layers 31 and the inner wall of the box body 1 form the turbulent chamber 4; the number of the driving components 7 is two, and one driving component 7 corresponds to one waterproof layer 31, and the driving component 7 includes a plurality of driving parts 73, and the plurality of driving parts 73 are sequentially connected to the waterproof layer 31, and the movement of the driving parts 73 forces the waterproof layer 31 to deform. The material of the waterproof layer 31 is a water-repellent material, and it has flexibility. Preferably, the material of the waterproof layer 31 is rubber.

[0034] Specifically, Figure 4 As shown, the two waterproof layers 31 are arranged up and down, and the multiple driving parts 73 are arranged along the length direction of the waterproof layer 31; the driving assembly 7 also includes multiple connecting wires 74 corresponding to the driving parts 73, and the driving parts 73 are connected to the waterproof layer 31 through the connecting wires 74. When the driving parts 73 press against the waterproof layer 31 and move toward the turbulent cavity 4 to form the convex section 311, the connecting wires 74 are in a relaxed state. When the driving parts 73 drive the waterproof layer 31 to move away from the turbulent cavity 4 through the connecting wires 74 and form the concave section 312, the connecting wires 74 are in a stretched state. Figure 5As shown, at this time, the connection position between the connection line 74 and the waterproof layer 31 is staggered with the driving part 73, as shown in FIG. Figure 6 , 7 As shown, at this time, the connection position between the connection line 74 and the waterproof layer 31 is at the same vertical position as the driving part 73.

[0035] Preferably, the waterproof layer 31 is evenly provided with a plurality of pads 75 along the length direction, and the pads 75 are suitable for being fixedly connected with the connecting wire 74, so that the electrical connection between the connecting wire 74 and the waterproof layer 31 is transformed into a surface connection, thereby increasing the stress-bearing area, being less prone to breakage, and increasing the service life.

[0036] Specifically, Figure 3-5 As shown, the driving assembly 7 also includes a shaping block assembly 8 arranged along the length direction of the waterproof layer 31, and the driving part 73 is connected to the connecting line 74 through part of the shaping block assembly 8; the shaping block assembly 8 includes two first positioning blocks 81 and a plurality of first movable blocks 83, the two first positioning blocks 81 are fixedly arranged and respectively arranged at the two ends of the waterproof layer 31, and the plurality of first movable blocks 83 are sequentially clamped between the two first positioning blocks 81, and the first positioning block 81 and the first movable block 83, and the two first movable blocks 83 can slide relative to each other in the vertical direction, and the driving part 73 moves up and down to drive the waterproof layer 31 to be close to the first movable block 83, so that the convex section 311 and the concave section 312 are in a continuous arc. That is, after the driving part 73 drives the plurality of first movable blocks 83 to form the stepped convex section 311 and the concave section 312, the waterproof layer 31 covers the corners of each first movable block 83 to form a continuous arc, so that the slurry can flow smoothly.

[0037] Specifically, Figure 3-5 As shown, the driving assembly 7 also includes a support plate 32 fixedly arranged in the processing chamber 3 and a plurality of fixed rods 321 arranged on the support plate 32, and the first positioning block 81 is fixedly connected to the fixed rod 321; the shaping block assembly 8 also includes a plurality of second positioning blocks 82 and a plurality of second movable blocks 84, and the second movable block 84 is provided with a connecting block 843, and the fixed rod 321 and the connecting line 74 are respectively fixedly connected to the connecting block 843, and the second positioning block 82 and the second movable block 84 are respectively clamped between the two first movable blocks 83, and the convex section 311 and the concave section 312 are both formed between the second positioning block 82 and the first positioning block 81, or between the two second positioning blocks 82. It can be understood that the shaping block assembly 8 completes the positioning function through the first positioning block 81 and the second positioning block 82, and the first positioning block 81 and the second positioning block 82 are always fixed in the processing chamber 3, and the second movable block 84 plays a role of variable through the driving part 73, and each first movable block 83 plays a role of gradual connection.

[0038] Specifically, Figure 4 , 5 As shown, the first positioning block 81, the second positioning block 82, the first movable block 83 and the second movable block 84 are all hollow, the connecting block 843 is arranged in the middle of the second positioning block 82, and the driving part 73 passes through the supporting plate 32 to be connected with the connecting block 843.

[0039] Preferably, the first positioning block 81 , the second positioning block 82 , the first movable block 83 and the second movable block 84 are all in the form of a rectangular parallelepiped and are hollow.

[0040] Specifically, Figure 4 , 5 As shown, as shown, the first positioning block 81 is respectively provided with a first limit groove 811 and a first limit block 812 on both sides, the second positioning block 82 is respectively provided with a second limit groove 821 and a second limit block 822 on both sides, the first movable block 83 is respectively provided with a third limit groove 831 and a third limit block 832 on both sides, and the second movable block 84 is respectively provided with a fourth limit groove 841 and a fourth limit block 842 on both sides; the third limit block 832 is suitable for snap-fitting with any of the first limit groove 811, the second limit groove 821, the third limit groove 831 or the fourth limit groove 841; the third limit groove 831 is suitable for snap-fitting with any of the first limit groove 812, the second limit block 822, the third limit block 832 or the fourth limit block 842.

[0041] Preferably, Figure 4 As shown, the number of first movable blocks 83 between the first positioning block 81 and the adjacent second positioning block 82 is consistent with the number of first movable blocks 83 between any two adjacent second positioning blocks 82, and the number of second movable blocks 84 is consistent with the number of first movable blocks 83 between the adjacent first positioning blocks 81 or second positioning blocks 82. This can ensure that the peak values ​​and valley values ​​of each raised section 311 and recessed section 312 after forming are consistent.

[0042] Specifically, Figure 3As shown, there are multiple shaping block assemblies 8, and the multiple shaping block assemblies 8 are parallel to each other and spaced apart along the width direction of the waterproof layer 31; the driving assembly 7 also includes multiple driving sources 71 and multiple connecting plates 72, and the multiple connecting plates 72 are parallel to each other and spaced apart along the length direction of the waterproof layer 31, and the driving sources 71 correspond to the connecting plates 72 one by one, and each connecting plate 72 is provided with multiple connecting rods 721, and the number of the connecting rods 721 on each connecting plate 72 is consistent with the number of the shaping block assemblies 8, and the connecting rods 721 pass through the support plate 32 and are connected to the driving part 73, and the driving source 71 drives the connecting plate 72 to move up and down and drives the driving part 73 on the same column to move up and down synchronously.

[0043] It can be understood that the width of the waterproof layer 31 is determined by the width of the turbulent chamber 4. Therefore, when the width of the waterproof layer 31 is too long, driving the corresponding position of the waterproof layer 31 to change through a single driving unit 73 will cause uneven changes in the width direction of the waterproof layer 31. Setting a longer first movable block 83 will also cause uneven force, and the large size of the first movable block 83 is not conducive to processing and assembly. Therefore, by driving the driving units 73 in the same column to move synchronously through a driving source 71, the forming of the raised section 311 and the recessed section 312 on the waterproof layer 31 can be completed synchronously and evenly.

[0044] Specifically, Figure 3 As shown, the slurry processing mechanism 2 also includes a rotating shaft 21, on which a torsion spring 211 is provided. The waterproof layer 31 is made of rubber material, one end of the waterproof layer 31 is fixedly arranged in the processing chamber 3, and the other end is wound around the rotating shaft 21.

[0045] Preferably, two rotating shafts 21 may be provided and both ends of the waterproof layer 31 may be wound around the two rotating shafts 21 .

[0046] Preferably, Figure 2 , 10 As shown, the two ends of the waterproof layer 31 are sealed with the turbulence chamber 4 through a sealing gasket 91 and a sealing strip 92 .

[0047] Preferably, the driving sources 71 are all electrically controlled separately, that is, the driving parts 73 move in sequence to make the waterproof layer 31 change the convex section 311 and the concave section 312 in sequence. Due to the torsion spring 211 on the rotating shaft 21, the waterproof layer 31 is always in a state tending to be straightened. Therefore, by the driving parts 73 of the rotating shaft 21 moving in sequence, the rotating shaft 21 can achieve the purpose of slow and uniform rotation, so that the waterproof layer 31 is stretched and contracted in an orderly manner, the waterproof layer 31 is prevented from being broken, and the service life can be increased.

[0048] Specifically, Figure 2As shown, the spraying mechanism 6 includes an upper lip plate 61, a lower lip plate 62 and an upper lip plate 61 adjustment component, and the upper lip plate 61 adjustment component includes a slider 63, a connecting arm 64 rotatably connected to the slider 63, a support arm 65 rotatably connected to the connecting arm 64, a driving motor 66 and a worm gear 661 driven by the driving motor 66, and the connecting arm 64 is provided with a rack 641 that cooperates with the worm gear 661. One end of the upper lip plate 61 is rotatably connected to the box body 1, and the other end is connected to the support arm 65. The driving motor 66 drives the worm gear 661 to rotate, and adjusts the opening and closing size of the upper lip plate 61 and the lower lip plate 62 through the connecting arm 64 and the support arm 65. The present application is electrically controlled by the driving motor 66, which saves manpower settings and improves the precise control effect.

[0049] It should be noted that if Figure 2 As shown, the drive motor 66 is also provided with a worm (not shown in the figure) corresponding to the worm wheel 661 and a gear (not shown in the figure) corresponding to the rack 641. Since this is a common technical means used by those skilled in the art, it will not be described in detail in this application.

[0050] Preferably, Figure 2 As shown, a scale 67 is also provided on the box body 1 at the connection position between the support arm 65 and the upper lip plate 61, and the adjustment position of the upper lip plate 61 can be accurately adjusted according to the scale.

[0051] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A wide hydraulic headbox, characterized in that: include: Box; The slurry feeding mechanism and the slurry spraying mechanism are arranged on the box body; as well as A slurry processing mechanism is arranged in the box, the slurry processing mechanism comprises a processing chamber, a driving component and a turbulent chamber arranged in the processing chamber, and the slurry feeding mechanism is connected with the spraying mechanism through the turbulent chamber; Wherein, the turbulence chamber is deformable, and the driving assembly is suitable for driving the inner wall of the turbulence chamber to deform into convex sections and concave sections that appear alternately; The slurry processing mechanism further comprises two flexible waterproof layers, and the two waterproof layers and the inner wall of the box body form the turbulent cavity; The number of the driving components is two, and one driving component corresponds to one waterproof layer. The driving component includes a plurality of driving parts, and the plurality of driving parts are sequentially connected to the waterproof layer. The movement of the driving parts forces the waterproof layer to deform. The two waterproof layers are arranged one above the other, and the plurality of driving parts are arranged along the length direction of the waterproof layer; The driving assembly further includes a plurality of connecting wires corresponding to the driving part, the driving part is connected to the waterproof layer through the connecting wires, when the driving part moves against the waterproof layer toward the turbulent cavity and forms a convex section, the connecting wires are in a relaxed state, and when the driving part drives the waterproof layer to move away from the turbulent cavity through the connecting wires and forms a concave section, the connecting wires are in a stretched state; The driving assembly further comprises a shaping block assembly arranged along the length direction of the waterproof layer, and the driving part is connected to the connecting line through part of the shaping block assembly; The shaping block assembly includes two first positioning blocks and a plurality of first movable blocks, the two first positioning blocks are fixedly arranged and respectively arranged at two ends of the waterproof layer, the plurality of first movable blocks are sequentially clamped between the two first positioning blocks, and the first positioning block and the first movable block and the two first movable blocks can slide relative to each other in the vertical direction, and the driving part moves up and down to drive the waterproof layer to be close to the first movable blocks, so that the convex section and the concave section form a continuous arc; The driving assembly further comprises a support plate fixedly arranged in the processing chamber and a plurality of fixing rods arranged on the support plate, and the first positioning block is fixedly connected to the fixing rods; The shaping block assembly also includes a plurality of second positioning blocks and a plurality of second movable blocks, the second movable block is provided with a connecting block, the fixing rod and the connecting line are respectively fixedly connected to the connecting block, the second positioning block and the second movable block are respectively clamped between two of the first movable blocks, and the raised section and the recessed section are both formed between the second positioning block and the first positioning block, or between the two second positioning blocks.

2. A wide hydraulic headbox according to claim 1, characterized in that: The first positioning block, the second positioning block, the first movable block and the second movable block are all hollow, the connecting block is arranged in the middle of the second positioning block, and the driving part passes through the supporting plate and is connected to the connecting block.

3. A wide hydraulic headbox as claimed in claim 1, characterized in that: The first positioning block is provided with a first limiting groove and a first limiting block on both sides, the second positioning block is provided with a second limiting groove and a second limiting block on both sides, the first movable block is provided with a third limiting groove and a third limiting block on both sides, and the second movable block is provided with a fourth limiting groove and a fourth limiting block on both sides; The third limiting block is suitable for engaging with any one of the first limiting groove, the second limiting groove, the third limiting groove or the fourth limiting groove; The third limiting groove is suitable for snap-fitting with any limiting groove of the first limiting block, the second limiting block, the third limiting block or the fourth limiting block.

4. A wide hydraulic headbox as claimed in claim 1, characterized in that: There are multiple shaping block assemblies, and the multiple shaping block assemblies are parallel to each other and spaced apart along the width direction of the waterproof layer; The driving assembly also includes multiple driving sources and multiple connecting plates. The multiple connecting plates are parallel to each other and spaced apart along the length direction of the waterproof layer. The driving sources correspond to the connecting plates one by one. Each connecting plate is provided with multiple connecting rods. The number of connecting rods on each connecting plate is consistent with the number of the shaping block assemblies, and the connecting rods pass through the supporting plates and are connected to the driving parts. The driving sources drive the connecting plates to move up and down and drive the driving parts on the same column to move up and down synchronously.

5. A wide hydraulic headbox as claimed in claim 1, characterized in that: The slurry processing mechanism also includes a rotating shaft, on which a torsion spring is arranged. The waterproof layer is made of rubber material, one end of the waterproof layer is fixedly arranged in the processing chamber, and the other end is wound around the rotating shaft.

6. A wide hydraulic headbox according to any one of claims 1 to 5, characterized in that: The spraying mechanism includes an upper lip plate, a lower lip plate and an upper lip plate adjustment assembly. The upper lip plate adjustment assembly includes a slider, a connecting arm rotatably connected to the slider, a support arm rotatably connected to the connecting arm, a driving motor and a worm gear driven by the driving motor. The connecting arm is provided with a rack connected to the worm gear. One end of the upper lip plate is rotatably connected to the box body, and the other end is connected to the support arm. The driving motor drives the worm gear to rotate, and adjusts the opening and closing size of the upper lip plate and the lower lip plate through the connecting arm and the support arm.

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