A twin wire hydraulic flow box

Abstract

This utility model belongs to the field of headbox technology, and in particular to a wire mesh hydraulic headbox, which includes a headbox and a treatment box. The treatment box is fixedly connected to the top of the headbox and the headbox and the treatment box are connected. The wire mesh hydraulic headbox also includes: a filter plate and a mounting plate. The filter plate is movably connected to the inner wall of the headbox, and the mounting plate is fixedly connected to the front side of the filter plate, with the front side of the mounting plate extending to the outside of the headbox; a pull plate and a positioning plate. The pull plate is movably connected to the right side of the headbox, and the positioning plate is fixedly connected to the left side of the pull plate. A positioning groove is opened on the right side of the mounting plate, and the positioning groove engages with the positioning plate. In this utility model, the positioning plate is moved by the unlocking plate to facilitate the fixing or unlocking of the filter plate. Through the cooperation of the treatment box and the filter plate, solid suspended matter larger than the pore size of the filter plate in the pulp is filtered out, making the paper finer and preventing it from affecting the quality of subsequent paper production.

Description

Technical Field

[0001] This utility model relates to the field of headbox technology, and in particular to a mesh-coated hydraulic headbox. Background Technology

[0002] In the prior art, utility model publication CN222575120U discloses a papermaking headbox, including a headbox with a discharge valve at its lower end, a support plate fixed to the side wall of the headbox, a top cover covering the upper end of the headbox, a guide rod at the upper end of the top cover penetrating the support plate, a homogenizing device on the support plate that can be inserted into the headbox, and a lifting drive device connected to the top cover. This utility model belongs to the field of headbox technology, specifically addressing the problem of inconvenient separation and disassembly or cleaning of the internal stirring rod in existing headboxes.

[0003] However, the above-mentioned technical solutions lack the function of filtering larger suspended solid impurities in the pulp. When in use, these larger suspended solid impurities mixed in the pulp can easily affect the production quality of paper. Therefore, we propose a wire mesh hydraulic headbox to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies that lack the function of filtering larger suspended solid impurities in pulp, which can easily affect the quality of paper production when mixed with pulp. Therefore, this invention proposes a wire mesh hydraulic headbox.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A mesh-coated hydraulic headbox includes a headbox and a treatment box, wherein the treatment box is fixedly connected to the top of the headbox and the headbox and the treatment box are in communication. The mesh-coated hydraulic headbox further includes:

[0007] The filter plate is movably connected to the inner wall of the headbox, and the mounting plate is fixedly connected to the front side of the filter plate, with the front side of the mounting plate extending to the outside of the headbox.

[0008] A pull plate and a positioning plate are provided. The pull plate is movably connected to the right side of the headbox, and the positioning plate is fixedly connected to the left side of the pull plate. A positioning groove is provided on the right side of the mounting plate, and the positioning groove engages with the positioning plate.

[0009] The control mechanism is located on the right side of the processing box and is connected to the pull plate. The control mechanism is used to drive the pull plate to move, thereby moving the positioning plate.

[0010] As a preferred embodiment of this utility model, the control mechanism includes: an unlocking plate, a connecting plate, a lifting plate, and a pull rod;

[0011] The unlocking plate is slidably connected to the right side of the processing box, the connecting plate is fixedly connected to the bottom of the unlocking plate, the lifting plate is fixedly connected to the bottom of the connecting plate, and the left side of the lifting plate is slidably connected to the right side of the headbox. The pull rod is rotatably connected to the front side of the lifting plate, and the front side of the pull rod is rotatably connected to the rear side of the pull plate.

[0012] Furthermore, when the unlocking plate moves, it causes the lifting plate to move upward. When the lifting plate moves, it compresses the return spring. At the same time, the movement of the lifting plate pulls the lever. When the lever moves, it pulls the pull plate to the right. When the pull plate moves to the right, it compresses the positioning spring. At the same time, the movement of the pull plate causes the positioning plate to move to the right, so that the positioning plate moves and disengages from the positioning groove, thereby unlocking the mounting plate.

[0013] As a preferred embodiment of this utility model, a support frame is fixedly connected to the right side of the processing box, and the bottom of the pull plate is slidably connected to the top of the support frame.

[0014] Furthermore, the support frame facilitates the support and limiting of the pull plate, allowing the pull plate to slide and move the positioning plate.

[0015] As a preferred embodiment of this utility model, a positioning spring is fixedly connected to the left side of the support frame, and the left side of the positioning spring is fixedly connected to the right side of the pull plate.

[0016] Furthermore, the elastic force of the positioning spring facilitates the lateral movement and reset of the pull plate, thereby causing the positioning plate to reset and engage with the positioning groove.

[0017] As a preferred embodiment of this utility model, a support plate is fixedly connected to the right side of the processing box. The support plate has a hollow structure, and the outer wall of the connecting plate is slidably connected to the inner wall of the support plate.

[0018] Furthermore, the support plate facilitates the limiting of the connecting plate, enabling the connecting plate, unlocking plate, and lifting plate to move stably and vertically.

[0019] In a preferred embodiment of this utility model, a return spring is fixedly connected to the bottom of the support plate, and the bottom of the return spring is fixedly connected to the top of the lifting plate.

[0020] Furthermore, the spring force of the return spring facilitates the repositioning of the lifting plate.

[0021] Beneficial effects: The mounting plate facilitates the movement of the filter plate, which in turn facilitates the filtration of pulp entering the processing box. The control mechanism facilitates the movement of the pull plate, which in turn moves the positioning plate. The positioning plate can engage or disengage with the positioning groove, making it easy to fix or unlock the mounting plate.

[0022] In this invention, the positioning plate is moved by the unlocking plate to facilitate the fixing or unlocking of the filter plate. The cooperation between the processing box and the filter plate filters out solid suspended matter in the pulp that is larger than the pore size of the filter plate, making the paper finer and preventing it from affecting the quality of subsequent paper production. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a mesh-coated hydraulic headbox proposed in this utility model;

[0024] Figure 2 This is a front sectional view of the headbox of a mesh-coated hydraulic headbox proposed in this utility model.

[0025] Figure 3 This is a partial structural schematic diagram of a mesh-coated hydraulic headbox proposed in this utility model;

[0026] Figure 4 This is a partial structural schematic diagram of the control mechanism for a mesh-coated hydraulic headbox proposed in this utility model.

[0027] In the diagram: 1. Headbox; 2. Processing box; 3. Filter plate; 4. Mounting plate; 5. Unlocking plate; 6. Connecting plate; 7. Lifting plate; 8. Support plate; 9. Return spring; 10. Pull rod; 11. Pull plate; 12. Support frame; 13. Positioning spring; 14. Positioning plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Example 1

[0030] Reference Figure 1-4 A type of mesh-coated hydraulic headbox, comprising

[0031] The headbox 1 and the treatment box 2 are fixedly connected to the top of the headbox 1, and the headbox 1 and the treatment box 2 are in communication. The mesh-coated hydraulic headbox also includes:

[0032] The filter plate 3 is movably connected to the inner wall of the headbox 1, and the mounting plate 4 is fixedly connected to the front side of the filter plate 3, with the front side of the mounting plate 4 extending to the outside of the headbox 1.

[0033] Pull plate 11 and positioning plate 14 are connected. Pull plate 11 is movably connected to the right side of headbox 1, and positioning plate 14 is fixedly connected to the left side of pull plate 11. A positioning groove is provided on the right side of mounting plate 4, and the positioning groove engages with positioning plate 14.

[0034] The control mechanism is located on the right side of the processing box 2. The control mechanism is connected to the pull plate 11 and is used to drive the pull plate 11 to move so that the positioning plate 14 moves.

[0035] Through the above mechanism: the filter plate 3 can be easily moved by the mounting plate 4, and the filter plate 3 can easily filter the pulp entering the processing box 2. The control mechanism can easily move the pull plate 11, thereby moving the positioning plate 14. The positioning plate 14 can be engaged or disengaged from the positioning groove to easily fix or unlock the mounting plate 4.

[0036] To control the movement of the positioning plate 14 to fix or unlock the mounting plate 4, the control mechanism includes: an unlocking plate 5, a connecting plate 6, a lifting plate 7, and a pull rod 10. The unlocking plate 5 is slidably connected to the right side of the processing box 2, the connecting plate 6 is fixedly connected to the bottom of the unlocking plate 5, the lifting plate 7 is fixedly connected to the bottom of the connecting plate 6, and the left side of the lifting plate 7 is slidably connected to the right side of the headbox 1. The pull rod 10 is rotatably connected to the front side of the lifting plate 7, and the front side of the pull rod 10 is rotatably connected to the rear side of the pull plate 11. When the unlocking plate 5 moves, it will drive the lifting plate 7 to move upward. When the lifting plate 7 moves, it will compress the return spring 9. At the same time, the movement of the lifting plate 7 will pull the pull rod 10. Then, the movement of the pull rod 10 will pull the pull plate 11 to the right. At this time, the movement of the pull plate 11 to the right will compress the positioning spring 13. At the same time, the movement of the pull plate 11 will drive the positioning plate 14 to the right, so that the positioning plate 14 moves and disengages from the positioning groove, thereby unlocking the mounting plate 4.

[0037] In order to support and limit the pull plate 11 so as to drive the positioning plate 14 to move, a support frame 12 is fixedly connected to the right side of the processing box 2. The bottom of the pull plate 11 is slidably connected to the top of the support frame 12. The support frame 12 facilitates the support and limit of the pull plate 11, and facilitates the sliding of the pull plate 11 to drive the positioning plate 14 to move.

[0038] In order to push the positioning plate 14 to reset and fix the mounting plate 4, a positioning spring 13 is fixedly connected to the left side of the support frame 12. The left side of the positioning spring 13 is fixedly connected to the right side of the pull plate 11. The elastic force of the positioning spring 13 can easily push the pull plate 11 to move laterally and reset, thereby driving the positioning plate 14 to reset and engage with the positioning groove.

[0039] In order to limit the connection plate 6 and make the unlocking plate 5 and the lifting plate 7 move stably, a support plate 8 is fixedly connected to the right side of the processing box 2. The support plate 8 has a hollow structure, and the outer wall of the connection plate 6 is slidably connected to the inner wall of the support plate 8. The support plate 8 facilitates the limitation of the connection plate 6, so that the connection plate 6, the unlocking plate 5 and the lifting plate 7 can move stably and vertically.

[0040] To facilitate the reset of the lifting plate 7 and the unlocking plate 5, a reset spring 9 is fixedly connected to the bottom of the support plate 8. The bottom of the reset spring 9 is fixedly connected to the top of the lifting plate 7. The spring force of the reset spring 9 facilitates the reset of the lifting plate 7.

[0041] The headbox 1 adopts existing technology and can use the main structure of the device of the patent with announcement number CN222575120U.

[0042] The working principle of this utility model is as follows: In actual use, the headbox 1 is placed in a suitable position, and the pulp for paper production is poured into the processing box 2. Larger suspended solids in the pulp are screened out by the inclined filter plate 3, allowing the impurities to slide out of the processing box 2 along the filter plate 3 for easy collection and processing. The filtered pulp returns to the headbox 1 for subsequent use. The size of the suspended solids screened out of the pulp varies depending on the type of paper being produced. When the filter plate 3 needs cleaning or replacement according to usage requirements, first push the unlocking plate 5 upwards. The movement of the unlocking plate 5 will cause the lifting plate 7 to move upwards. The movement of the lifting plate 7 will compress the return spring 9, and simultaneously, the movement of the lifting plate 7 will pull the lever 10. At this time, the lever 10 will pull... When the pull plate 11 moves to the right, it compresses the positioning spring 13. Simultaneously, the movement of the pull plate 11 causes the positioning plate 14 to move to the right, disengaging it from the positioning groove and unlocking the mounting plate 4. Pulling the mounting plate 4 then removes the filter plate 3 for cleaning or replacement. When installing the filter plate 3, insert it into the processing box 2, aligning the positioning groove with the positioning plate 14. Releasing the unlocking plate 5 releases the spring 9, causing the lifting plate 7 to reset and the unlocking plate 5 to reset as well. Simultaneously, the positioning spring 13 pushes the pull plate 11 to move laterally. This movement causes the positioning plate 14 to move to the left, engaging with the positioning groove and securing the mounting plate 4, thus fixing the filter plate 3 and enabling cleaning or replacement of the filter plate 3.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hydraulically operated headbox with mesh reinforcement, comprising a headbox (1) and a treatment box (2), wherein the treatment box (2) is fixedly connected to the top of the headbox (1), and the headbox (1) and the treatment box (2) are in communication, characterized in that, The mesh-coated hydraulic headbox also includes: The filter plate (3) and the mounting plate (4) are connected to the inner wall of the headbox (1), and the mounting plate (4) is fixedly connected to the front side of the filter plate (3), and the front side of the mounting plate (4) extends to the outside of the headbox (1). Pull plate (11) and positioning plate (14), the pull plate (11) is movably connected to the right side of the headbox (1), the positioning plate (14) is fixedly connected to the left side of the pull plate (11), and a positioning groove is provided on the right side of the mounting plate (4), the positioning groove is engaged with the positioning plate (14); The control mechanism is located on the right side of the processing box (2). The control mechanism is connected to the pull plate (11) and is used to drive the pull plate (11) to move so that the positioning plate (14) moves.

2. The hydraulic headbox with mesh reinforcement according to claim 1, characterized in that, The control mechanism includes: an unlocking plate (5), a connecting plate (6), a lifting plate (7), and a pull rod (10); The unlocking plate (5) is slidably connected to the right side of the processing box (2), the connecting plate (6) is fixedly connected to the bottom of the unlocking plate (5), the lifting plate (7) is fixedly connected to the bottom of the connecting plate (6), and the left side of the lifting plate (7) is slidably connected to the right side of the headbox (1). The pull rod (10) is rotatably connected to the front side of the lifting plate (7), and the front side of the pull rod (10) is rotatably connected to the rear side of the pull plate (11).

3. A mesh-coated hydraulic headbox according to claim 2, characterized in that, The right side of the processing box (2) is fixedly connected to a support frame (12), and the bottom of the pull plate (11) is slidably connected to the top of the support frame (12).

4. A mesh-coated hydraulic headbox according to claim 3, characterized in that, A positioning spring (13) is fixedly connected to the left side of the support frame (12), and the left side of the positioning spring (13) is fixedly connected to the right side of the pull plate (11).

5. A mesh-coated hydraulic headbox according to claim 1, characterized in that, The right side of the processing box (2) is fixedly connected to a support plate (8). The support plate (8) is a hollow structure, and the outer wall of the connecting plate (6) is slidably connected to the inner wall of the support plate (8).

6. A mesh-coated hydraulic headbox according to claim 5, characterized in that, A reset spring (9) is fixedly connected to the bottom of the support plate (8), and the bottom of the reset spring (9) is fixedly connected to the top of the lifting plate (7).

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