A paper edge cutting device for filter paper production

Abstract

The present invention provides a paper edge cutting device for filter paper production, which belongs to the technical field of filter paper production, and comprises a support frame, which is arranged astride above the moving wet paper sheet; two adjustment blocks, which are respectively arranged on the support frame for horizontal sliding, and the sliding direction is perpendicular to the moving direction of the wet paper sheet; the two adjustment blocks are transmission-connected with a first drive assembly, and the first drive assembly is used to adjust the spacing between the two adjustment blocks; two water inlet pipes, which are vertically slidingly arranged on the adjustment blocks, and correspond one-to-one with the adjustment blocks; each of the water inlet pipes is transmission-connected with a second drive assembly to adjust the height of the water inlet pipe; two nozzles, which are respectively connected to the two water inlet pipes, and the water outlets are vertically downward toward the wet paper sheet. The paper edge cutting device for filter paper production provided by the present invention can quickly adapt to the cutting requirements of different filter papers by adjusting the lateral spacing and height of the two nozzles through the first drive assembly and the second drive assembly.

Description

Technical Field

[0001] The invention belongs to the technical field of filter paper production, and more specifically, relates to a paper edge cutting device for filter paper production. Background Art

[0002] In the papermaking process, the headbox sprays evenly dispersed pulp onto the mesh cloth that is in continuous circulation. The fibers in the pulp gradually deposit on the surface of the mesh cloth, and at the same time, water is continuously filtered out through the mesh holes of the mesh cloth, so that the pulp initially forms a wet paper sheet. In order to meet the size requirements of the filter paper produced, the two sides of the wet paper sheet need to be cut. During cutting, high-pressure water is transported to the cutting nozzle through a high-pressure pipeline, and is ejected from the nozzle at high speed to form a high-pressure water jet. When the wet paper sheet is transported to the cutting area, the high-pressure water jet impacts the wet paper sheet, and the impact force of the high-pressure water is used to cut off the wet paper sheet fibers, thereby completing the cutting.

[0003] In the actual production process, the position of the nozzle needs to be adjusted according to the material and size of the filter paper being produced. The existing nozzle and bracket are connected by bolts. After the staff adjusts the nozzle to the appropriate position, they rotate the bolts on the bracket so that the end of the bolt rests on the nozzle, thereby pressing the nozzle onto the bracket to fix the nozzle. Each time the position of the nozzle is adjusted, the staff must first loosen the bolts, manually move the nozzle to the approximate position, and then determine the precise position through repeated fine-tuning. This process requires multiple measurements with the help of measuring tools, and there are many operating steps. Especially when the nozzle position accuracy is required to be high, positioning is difficult and time-consuming, which is not convenient for the staff to use. Summary of the invention

[0004] The object of the present invention is to provide a paper edge cutting device for filter paper production, aiming at facilitating the adjustment of the position of a nozzle.

[0005] To achieve the above object, the technical solution adopted by the present invention is: to provide a paper edge cutting device for filter paper production, comprising:

[0006] A support frame is placed across the moving wet paper sheets;

[0007] Two adjustment blocks are respectively arranged on the support frame for horizontal sliding, and the sliding direction is perpendicular to the traveling direction of the wet paper sheet; the two adjustment blocks are transmission-connected with a first driving assembly, and the first driving assembly is used to adjust the distance between the two adjustment blocks;

[0008] Two water inlet pipes are vertically slidably arranged on the adjustment block and correspond to the adjustment block one by one; each of the water inlet pipes is transmission-connected to a second driving assembly to adjust the height of the water inlet pipe; and

[0009] The two nozzles are respectively connected to the two water inlet pipes, and the water outlets are vertically downward toward the wet paper sheet.

[0010] In a possible implementation, two mutually parallel slide rails are fixedly provided on the support frame, and the two slide rails are respectively located on two sides of the support frame;

[0011] Each of the positioning blocks is provided with two slide grooves, and the two slide grooves are respectively slidably connected with the two slide rails.

[0012] In a possible implementation, the first driving component includes:

[0013] A double-headed screw is rotatably arranged on the support frame and is parallel to the slide rail; the double-headed screw has a first thread and a second thread with opposite rotation directions, and the first thread and the second thread are respectively threadedly connected to the two adjustment blocks;

[0014] The first driving motor is fixedly arranged on the supporting frame, and the output end thereof is connected to the double-headed screw.

[0015] In a possible implementation, a limiting protrusion is fixedly provided on the positioning block, and a limiting groove suitable for the limiting protrusion to slide is provided on the water inlet pipe along the axis.

[0016] In a possible implementation, the second driving component includes:

[0017] A threaded ring is rotatably arranged on the adjustment block and sleeved on the outer peripheral wall of the water inlet pipe; the outer peripheral wall of the water inlet pipe has a third thread suitable for threaded connection with the threaded ring;

[0018] A gear ring, fixedly arranged on the outer peripheral wall of the threaded ring;

[0019] A second motor is fixedly arranged on the positioning block;

[0020] The gear is fixedly arranged at the output end of the second motor and meshes with the gear ring.

[0021] In a possible implementation, a first positioning member is horizontally slidably disposed on the positioning block, and the first positioning member has elastic freedom to move away from the water inlet pipe;

[0022] A second positioning member is vertically slidably provided on the positioning block, the second positioning member has elastic freedom to move away from the support frame, and the second positioning member abuts against the first positioning member;

[0023] A third positioning member is rotatably provided on the positioning block, the third positioning member abuts against the first positioning member, and the third positioning member is used to push the first positioning member to move toward the water inlet pipe;

[0024] When the first positioning member moves to abut against the outer wall of the water inlet pipe, the first positioning member pushes the second positioning member to move against the support frame, so that the first positioning member positions the water inlet pipe and the second positioning member positions the adjustment block.

[0025] In a possible implementation, the first positioning member includes:

[0026] A first positioning block, horizontally slidably disposed on the positioning block and abutting against the second positioning member;

[0027] A first spring, two ends of which are respectively fixed to the first positioning block and the adjusting block, and sleeved on the first positioning block;

[0028] A first anti-slip pad, fixedly arranged on one end of the first positioning block facing the support frame;

[0029] Wherein, when the first spring is in a natural state, the first positioning block is separated from the water inlet pipe.

[0030] In a possible implementation manner, a side of the first positioning block facing the second positioning member has a clearance groove;

[0031] When the first positioning block moves away from the water inlet pipe, the second positioning member moves into the clearance groove to separate the second positioning member from the support frame.

[0032] In a possible implementation, the second positioning member includes:

[0033] A second positioning block is vertically slidably disposed on the positioning block and abuts against the first positioning member;

[0034] A second spring, two ends of which are respectively fixed to the second positioning block and the adjusting block, and is sleeved on the second positioning block;

[0035] A second anti-slip pad, fixedly arranged on an end of the second positioning member facing the water inlet pipe;

[0036] Wherein, when the second spring is in a natural state, the second positioning block is separated from the support frame.

[0037] In a possible implementation, the third positioning member includes:

[0038] An eccentric block is rotatably disposed on the positioning block and abuts against the first positioning member;

[0039] A handle, fixedly arranged on the eccentric block;

[0040] Wherein, when the handle is rotated to fit on the positioning block, the eccentric block pushes the first positioning member to move to abut against the outer wall of the water inlet pipe.

[0041] Compared with the prior art, the paper edge cutting device for filter paper production provided by the present invention has the following beneficial effects: in actual production, when it is necessary to adjust the lateral spacing between the nozzles according to the width of the filter paper to be produced, the first drive assembly is started to drive the two adjustment blocks to slide in the horizontal direction on the support frame, thereby adjusting the spacing between the two adjustment blocks. This process does not require the staff to manually loosen and tighten the bolts to adjust the lateral position of the nozzle, which greatly reduces the number of operation steps. Compared with the traditional adjustment method, adjusting the lateral spacing of the nozzles through the first drive assembly is simpler and faster to operate, can quickly adapt to the cutting requirements of filter papers of different widths, and improves production efficiency.

[0042] When the height of the nozzle needs to be adjusted according to the thickness of the wet paper sheet, the characteristics of the pulp, and the requirements for the cutting effect, the second drive component is activated to drive the water inlet pipe to move up and down, thereby adjusting the height of the nozzle. Compared with the traditional manual adjustment of the nozzle height, the staff does not need to use measuring tools to measure multiple times. They only need to control the operating parameters of the second drive component to accurately adjust the nozzle to the required height position, which greatly reduces the difficulty of positioning, shortens the adjustment time, improves work efficiency, and meets the production needs with high requirements for nozzle position accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0044] Figure 1 This is a schematic diagram of the overall structure of a paper edge cutting device for filter paper production provided by an embodiment of the present invention.

[0045] Figure 2 A cross-sectional view of a paper edge cutting device for filter paper production provided in an embodiment of the present invention.

[0046] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of part A.

[0047] Figure 4A cross-sectional view from another angle of the paper edge cutting device for filter paper production provided by an embodiment of the present invention.

[0048] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of part B.

[0049] In the figure: 1. support frame; 11. slide rail; 2. adjustment block; 21. slide groove; 22. limiting protrusion; 3. water inlet pipe; 31. limiting groove; 32. third thread; 4. nozzle; 51. double-headed screw; 511. first thread; 512. second thread; 52. first drive motor; 61. thread ring; 62. gear ring; 63. second motor; 64. gear; 7. first positioning member; 71. first positioning block; 72. first spring; 73. first anti-skid pad; 74. clearance groove; 8. second positioning member; 81. second positioning block; 82. second spring; 83. second anti-skid pad; 9. third positioning member; 91. eccentric block; 92. handle. DETAILED DESCRIPTION

[0050] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0051] See also Figure 1 , a paper edge cutting device for filter paper production provided by the present invention is now described. A paper edge cutting device for filter paper production, comprising a support frame 1, two adjustment blocks 2, two water inlet pipes 3 and two nozzles 4. Among them, the support frame 1 is arranged across the moving wet paper sheet. The two adjustment blocks 2 are respectively horizontally slidably arranged on the support frame 1, and the sliding direction is perpendicular to the moving direction of the wet paper sheet. The two adjustment blocks 2 are transmission-connected with a first drive assembly, and the first drive assembly is used to adjust the distance between the two adjustment blocks 2. The two water inlet pipes 3 are vertically slidably arranged on the adjustment blocks 2, and correspond one to one with the adjustment blocks 2. Each water inlet pipe 3 is transmission-connected with a second drive assembly to adjust the height of the water inlet pipe 3. The two nozzles 4 are respectively connected to the two water inlet pipes 3, and the water outlets are vertically downward toward the wet paper sheet.

[0052] Specifically, when producing filter paper of different specifications, the first drive assembly is activated to adjust the spacing between the two adjustment blocks 2, thereby adjusting the spacing between the two nozzles 4 to adjust the wet paper cutting width. At the same time, when the height of the nozzle 4 needs to be adjusted according to the thickness of the wet paper, the characteristics of the pulp, and the requirements for the cutting effect, the second drive assembly is activated to drive the water inlet pipe 3 to move up and down, thereby adjusting the height of the nozzle 4. The entire adjustment process of the nozzle 4 does not require manual operation by the staff, and the position of the nozzle 4 can be adjusted quickly and accurately, reducing cutting errors caused by improper manual adjustment and improving production efficiency.

[0053] In some embodiments, see Figure 2 , Figure 3 and Figure 4 Two parallel slide rails 11 are fixedly arranged on the support frame 1, and the two slide rails 11 are respectively located on both sides of the support frame 1. Two slide grooves 21 are provided on each adjustment block 2, and the two slide grooves 21 are respectively slidably connected with the two slide rails 11.

[0054] The slide rail 11 provides precise guidance for the movement of the positioning block 2, ensuring that the positioning block 2 moves smoothly and linearly in the horizontal direction. When adjusting the lateral spacing between the two nozzles 4, the positioning block 2 can move accurately along the slide rail 11, avoiding the problem of inaccurate position adjustment of the nozzle 4 due to uneven sliding or offset.

[0055] In some embodiments, see Figure 1 The first driving assembly includes a double-headed screw 51 and a first driving motor 52. The double-headed screw 51 is rotatably arranged on the support frame 1 and is parallel to the slide rail 11. The double-headed screw 51 has a first thread 511 and a second thread 512 with opposite rotation directions, and the first thread 511 and the second thread 512 are respectively threadedly connected to the two adjustment blocks 2. The first driving motor 52 is fixedly arranged on the support frame 1, and the output end is connected to the double-headed screw 51.

[0056] When the first drive motor 52 drives the double-headed screw 51 to rotate, since the first thread 511 and the second thread 512 have opposite thread rotation directions, the two adjustment blocks 2 will move toward or away from each other along the axial direction of the double-headed screw 51, thereby adjusting the spacing between the two adjustment blocks 2. Through the combination of the double-headed screw 51 and the first drive motor 52, it is possible to accurately control the spacing between the adjustment blocks 2. The staff only needs to control the rotation direction and number of rotations of the first drive motor 52 to accurately adjust the distance between the two adjustment blocks 2, and then accurately adjust the lateral spacing between the two nozzles 4 to meet the cutting requirements of filter papers of different widths, thereby improving the cutting accuracy and adaptability in the production process.

[0057] In some embodiments, see Figure 2 and Figure 3 A limiting protrusion 22 is fixedly provided on the adjusting block 2, and a limiting groove 31 suitable for the limiting protrusion 22 to slide is opened on the water inlet pipe 3 along the axis.

[0058] The limiting protrusion 22 is slidably connected to the limiting groove 31, which limits and guides the movement of the water inlet pipe 3. When the water inlet pipe 3 slides on the adjustment block 2, the limiting protrusion 22 slides in the limiting groove 31, ensuring that the water inlet pipe 3 can only move in a straight line along the vertical direction, thereby preventing the water inlet pipe 3 from rotating or deviating during the sliding process.

[0059] In some embodiments, see Figure 3 The second driving assembly includes a threaded ring 61, a gear ring 62, a second motor 63 and a gear 64. The threaded ring 61 is rotatably arranged on the adjustment block 2 and sleeved on the outer peripheral wall of the water inlet pipe 3. The outer peripheral wall of the water inlet pipe 3 has a third thread 32 suitable for threaded connection with the threaded ring 61. The gear ring 62 is fixedly arranged on the outer peripheral wall of the threaded ring 61. The second motor 63 is fixedly arranged on the adjustment block 2. The gear 64 is fixedly arranged at the output end of the second motor 63 and meshes with the gear ring 62.

[0060] When the second motor 63 drives the gear 64 to rotate, the gear 64 meshes with the gear ring 62 fixed on the outer peripheral wall of the threaded ring 61, so that the gear ring 62 drives the threaded ring 61 to rotate synchronously. When the threaded ring 61 rotates, it cooperates with the third thread 32 to move the water inlet pipe 3 along the vertical direction, thereby achieving precise control of the height of the nozzle 4, meeting the cutting requirements of wet paper sheets of different thicknesses, and improving the cutting quality and efficiency.

[0061] In some embodiments, see Figure 5 A first positioning member 7 is horizontally slidably provided on the positioning block 2, and the first positioning member 7 has an elastic freedom to move back to the water inlet pipe 3. A second positioning member 8 is vertically slidably provided on the positioning block 2, and the second positioning member 8 has an elastic freedom to move back to the support frame 1, and the second positioning member 8 abuts against the first positioning member 7. A third positioning member 9 is rotatably provided on the positioning block 2, and the third positioning member 9 abuts against the first positioning member 7, and the third positioning member 9 is used to push the first positioning member 7 to move toward the water inlet pipe 3.

[0062] When the first positioning member 7 moves to abut against the outer wall of the water inlet pipe 3 , the first positioning member 7 pushes the second positioning member 8 to move against the support frame 1 , so that the first positioning member 7 positions the water inlet pipe 3 and the second positioning member 8 positions the adjustment block 2 .

[0063] The first positioning member 7, the second positioning member 8 and the third positioning member 9 on the positioning block 2 work together to position the water inlet pipe 3 and the positioning block 2. After the position of the nozzle 4 is adjusted, the third positioning member 9 is rotated to push the first positioning member 7 toward the water inlet pipe 3. When the first positioning member 7 moves to abut against the outer wall of the water inlet pipe 3, it pushes the second positioning member 8 to move against the support frame 1, so that static friction is generated between the first positioning member 7 and the water inlet pipe 3, and static friction is generated between the second positioning member 8 and the support frame 1.

[0064] The first positioning member 7 realizes the positioning of the water inlet pipe 3 to prevent the water inlet pipe 3 from being displaced during use. The second positioning member 8 realizes the positioning of the adjustment block 2 to prevent the adjustment block 2 from sliding on the support frame 1, so that the position of the nozzle 4 can be kept stable, ensuring that the high-pressure water jet always accurately impacts the predetermined position of the wet paper sheet, improving the accuracy and stability of cutting, and reducing cutting errors caused by changes in the position of the nozzle 4.

[0065] In some embodiments, see Figure 5 The first positioning member 7 includes a first positioning block 71, a first spring 72 and a first anti-slip pad 73. The first positioning block 71 is horizontally slidably arranged on the adjustment block 2 and abuts against the second positioning member 8. The two ends of the first spring 72 are respectively fixed to the first positioning block 71 and the adjustment block 2, and are sleeved on the first positioning block 71. The first anti-slip pad 73 is fixedly arranged at one end of the first positioning block 71 facing the support frame 1. When the first spring 72 is in a natural state, the first positioning block 71 is separated from the water inlet pipe 3.

[0066] The first positioning block 71 is horizontally slidably arranged on the adjustment block 2, and the first spring 72 provides elastic force for it. When the first spring 72 is in a natural state, the first positioning block 71 is separated from the water inlet pipe 3, which is convenient for adjusting the position of the water inlet pipe 3. When the water inlet pipe 3 needs to be positioned, the third positioning member 9 is rotated to push the first positioning block 71 to overcome the elastic force of the first spring 72, move toward the water inlet pipe 3 and make the first anti-skid pad 73 rest against its outer wall, so as to achieve the positioning of the water inlet pipe 3. The first anti-skid pad 73 is fixedly arranged at one end of the first positioning block 71 facing the water inlet pipe 3, which increases the friction with the outer wall of the water inlet pipe 3 and ensures the firmness of the positioning.

[0067] In some embodiments, see Figure 5 The first positioning block 71 has a clearance groove 74 on one side facing the second positioning member 8. When the first positioning block 71 moves away from the water inlet pipe 3, the second positioning member 8 moves into the clearance groove 74 to separate the second positioning member 8 from the support frame 1.

[0068] When the first positioning block 71 moves away from the water inlet pipe 3, the second positioning member 8 can move to the clearance groove 74 under the action of its own elastic force. At this time, the second positioning member 8 is separated from the support frame 1, so that when the position of the water inlet pipe 3 is adjusted, the second positioning member 8 will not hinder the movement of the adjustment block 2.

[0069] When it is necessary to adjust the lateral position of the adjustment block 2 first and then adjust the height of the water inlet pipe 3, the first spring 72 pushes the first positioning block 71 to move away from the water inlet pipe 3, so that the second positioning member 8 enters the clearance groove 74, so that the adjustment block 2 can be easily slid and adjusted. After the adjustment is completed, the first positioning member 7 is pushed by the third positioning member 9 to reposition the water inlet pipe 3, and the second positioning member 8 is pressed against the support frame 1 again, so as to achieve the repositioning of the adjustment block 2 and the water inlet pipe 3. The whole process is convenient to operate, which improves the efficiency and flexibility of the device adjustment.

[0070] In some embodiments, see Figure 5 The second positioning member 8 includes a second positioning block 81, a second spring 82 and a second anti-skid pad 83. The second positioning block 81 is vertically slidably arranged on the adjustment block 2 and abuts against the first positioning member 7. The two ends of the second spring 82 are respectively fixed to the second positioning block 81 and the adjustment block 2, and are sleeved on the second positioning block 81. The second anti-skid pad 83 is fixedly arranged at one end of the second positioning member 8 facing the water inlet pipe 3. When the second spring 82 is in a natural state, the second positioning block 81 is separated from the support frame 1.

[0071] The second positioning block 81 of the second positioning member 8 is vertically slidably disposed on the adjustment block 2, and the second spring 82 provides elastic force for it. When the second spring 82 is in a natural state, the second positioning block 81 is separated from the support frame 1, which is convenient for adjusting the position of the adjustment block 2. When the first positioning block 71 abuts against the outer wall of the water inlet pipe 3 and pushes the second positioning block 81, the second positioning block 81 overcomes the elastic force of the second spring 82, moves and makes the second anti-slip pad 83 abut against the support frame 1, thereby realizing the positioning of the position of the adjustment block 2.

[0072] The second anti-slip pad 83 is fixedly arranged on one end of the second positioning block 81 facing the support frame 1, thereby increasing the friction with the support frame 1, ensuring that the adjustment block 2 is firmly positioned on the support frame 1, preventing the adjustment block 2 from sliding on the support frame 1, and ensuring the stability of the position of the nozzle 4, thereby ensuring that the high-pressure water jet always accurately impacts the edges of both sides of the wet paper sheet, thereby improving the quality and stability of cutting.

[0073] In some embodiments, see Figure 4 and Figure 5The third positioning member 9 includes an eccentric block 91 and a handle 92. The eccentric block 91 is rotatably disposed on the positioning block 2 and abuts against the first positioning member 7. The handle 92 is fixedly disposed on the eccentric block 91. When the handle 92 is rotated to fit on the positioning block 2, the eccentric block 91 pushes the first positioning member 7 to move to abut against the outer wall of the water inlet pipe 3.

[0074] By rotating the eccentric block 91 with the handle 92, the first positioning block 71 can be easily pushed to move. When the handle 92 is rotated to fit on the adjustment block 2, the eccentric part of the eccentric block 91 pushes the first positioning block 71 to move until the first anti-slip pad 73 abuts against the outer wall of the water inlet pipe 3, thereby positioning the water inlet pipe 3.

[0075] After adjusting the position of the nozzle 4 each time, the worker can quickly turn the handle 92 and use the eccentric block 91 to push the first positioning member 7 to position the water inlet pipe 3, without complicated operation steps and tools, thus improving work efficiency. At the same time, the handle 92 is attached to the adjustment block 2, which also avoids safety hazards and influence on the stability of the device caused by the shaking of the handle 92 during the operation of the device.

[0076] In summary, compared with the prior art, the paper edge cutting device for filter paper production provided by the present invention is that when it is necessary to adjust the lateral spacing between the nozzles 4 according to the width of the filter paper to be produced, the first drive assembly is started to drive the two adjustment blocks 2 to slide on the support frame 1, thereby adjusting the spacing between the two adjustment blocks 2. This process does not require the staff to manually loosen and tighten the bolts to adjust the lateral position of the nozzle 4, which greatly reduces the number of operating steps. Compared with the traditional adjustment method, adjusting the lateral spacing of the nozzles 4 through the first drive assembly is simpler and faster to operate, can quickly adapt to the cutting requirements of filter papers of different widths, and improves production efficiency.

[0077] When the height of the nozzle 4 needs to be adjusted according to the thickness of the wet paper sheet, the characteristics of the pulp, and the requirements for the cutting effect, the second drive component is started to drive the water inlet pipe 3 to move up and down, thereby adjusting the height of the nozzle 4. Compared with the traditional manual adjustment of the height of the nozzle 4, the staff does not need to use measuring tools to measure multiple times, but only needs to control the operating parameters of the second drive component to accurately adjust the nozzle 4 to the required height position, which greatly reduces the positioning difficulty, shortens the adjustment time, improves the work efficiency, and meets the production needs with high requirements for the position accuracy of the nozzle 4.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A paper edge cutting device for filter paper production, characterized in that: include: A support frame (1) is arranged across the moving wet paper sheet; Two positioning blocks (2) are respectively arranged on the support frame (1) for horizontal sliding, and the sliding direction is perpendicular to the moving direction of the wet paper sheet; the two positioning blocks (2) are transmission-connected to a first driving assembly, and the first driving assembly is used to adjust the distance between the two positioning blocks (2); Two water inlet pipes (3) are vertically slidably arranged on the positioning block (2) and correspond one to one with the positioning block (2); each of the water inlet pipes (3) is drivingly connected to a second driving assembly to adjust the height of the water inlet pipe (3); as well as The two nozzles (4) are respectively connected to the two water inlet pipes (3), and the water outlets are vertically downward toward the wet paper sheet.

2. A paper edge cutting device for filter paper production as claimed in claim 1, characterized in that: Two mutually parallel slide rails (11) are fixedly arranged on the support frame (1), and the two slide rails (11) are respectively located on two sides of the support frame (1); Two slide grooves (21) are provided on each of the positioning blocks (2), and the two slide grooves (21) are respectively slidably connected to the two slide rails (11).

3. A paper edge cutting device for filter paper production as claimed in claim 2, characterized in that: The first driving assembly comprises: A double-headed screw (51) is rotatably disposed on the support frame (1) and is parallel to the slide rail (11); the double-headed screw (51) has a first thread (511) and a second thread (512) with opposite rotation directions, and the first thread (511) and the second thread (512) are respectively threadedly connected to the two adjustment blocks (2); The first driving motor (52) is fixedly arranged on the support frame (1), and the output end is connected to the double-headed screw (51).

4. A paper edge cutting device for filter paper production as claimed in claim 1, characterized in that: A limiting protrusion (22) is fixedly provided on the positioning block (2), and a limiting groove (31) suitable for the limiting protrusion (22) to slide is provided on the water inlet pipe (3) along the axis.

5. A paper edge cutting device for filter paper production as claimed in claim 4, characterized in that: The second driving assembly comprises: a threaded ring (61) rotatably mounted on the positioning block (2) and sleeved on the outer peripheral wall of the water inlet pipe (3); the outer peripheral wall of the water inlet pipe (3) is provided with a third thread (32) suitable for being threadably connected to the threaded ring (61); A gear ring (62) fixedly disposed on the outer peripheral wall of the threaded ring (61); A second motor (63) is fixedly mounted on the positioning block (2); A gear (64) is fixedly arranged at the output end of the second motor (63) and meshes with the ring gear (62).

6. A paper edge cutting device for filter paper production as claimed in claim 1, characterized in that: A first positioning member (7) is horizontally slidably provided on the positioning block (2), and the first positioning member (7) has an elastic degree of freedom to move away from the water inlet pipe (3); A second positioning member (8) is vertically slidably provided on the positioning block (2), the second positioning member (8) having elastic freedom to move away from the support frame (1), and the second positioning member (8) abuts against the first positioning member (7); A third positioning member (9) is rotatably provided on the positioning block (2), the third positioning member (9) abuts against the first positioning member (7), and the third positioning member (9) is used to push the first positioning member (7) to move toward the water inlet pipe (3); When the first positioning member (7) moves to abut against the outer wall of the water inlet pipe (3), the first positioning member (7) pushes the second positioning member (8) to move to abut against the support frame (1), so that the first positioning member (7) positions the water inlet pipe (3) and the second positioning member (8) positions the adjustment block (2).

7. A paper edge cutting device for filter paper production as claimed in claim 6, characterized in that: The first positioning member (7) comprises: A first positioning block (71) is horizontally slidably disposed on the positioning block (2) and abuts against the second positioning member (8); A first spring (72), two ends of which are respectively fixed to the first positioning block (71) and the adjustment block (2), and is sleeved on the first positioning block (71); A first anti-slip pad (73) is fixedly arranged on one end of the first positioning block (71) facing the support frame (1); Wherein, when the first spring (72) is in a natural state, the first positioning block (71) is separated from the water inlet pipe (3).

8. A paper edge cutting device for filter paper production as claimed in claim 7, characterized in that: The first positioning block (71) has a clearance groove (74) on one side facing the second positioning member (8); When the first positioning block (71) moves away from the water inlet pipe (3), the second positioning member (8) moves into the clearance groove (74) so ​​that the second positioning member (8) is separated from the support frame (1).

9. A paper edge cutting device for filter paper production as claimed in claim 6, characterized in that: The second positioning member (8) comprises: A second positioning block (81) is vertically slidably disposed on the positioning block (2) and abuts against the first positioning member (7); A second spring (82), two ends of which are respectively fixed to the second positioning block (81) and the adjustment block (2), and is sleeved on the second positioning block (81); A second anti-slip pad (83) is fixedly arranged on one end of the second positioning member (8) facing the water inlet pipe (3); Wherein, when the second spring (82) is in a natural state, the second positioning block (81) is separated from the support frame (1).

10. A paper edge cutting device for filter paper production as claimed in claim 6, characterized in that: The third positioning member (9) comprises: An eccentric block (91) is rotatably disposed on the positioning block (2) and abuts against the first positioning member (7); A handle (92) fixedly disposed on the eccentric block (91); When the handle (92) is rotated to fit on the positioning block (2), the eccentric block (91) pushes the first positioning member (7) to move to abut against the outer wall of the water inlet pipe (3).

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