Automatic paper cutting structure with knife sharpening

Abstract

The application discloses an automatic knife grinding paper slitting structure and belongs to the technical field of paper slitting machines. The automatic knife grinding paper slitting structure comprises a fixing frame, a first rotating wheel, a second rotating wheel, a band saw, a driving piece, a motor, a grinding wheel and a cleaning piece. The paper slitting structure can save time when cutting paper. The space between the two flexible cleaning surfaces is smaller than the thickness of the band saw, forming an interference clamping of the surface of the band saw. When the band saw passes through the gap, the flexible cleaning surface can scrape off the metal chips adhering to the surface of the band saw, preventing the metal chips from adhering to the band saw and avoiding the problem that the metal chips cause scratches on the surface of the paper, affecting the appearance of the finished paper.

Description

Technical Field

[0001] This application relates to the field of paper slitting machine technology, and more specifically, to an automatic blade-grinding paper slitting structure. Background Technology

[0002] In the modern papermaking, packaging, and printing industries, paper slitting is a crucial downstream process. The core component of commercially available paper slitting machines is a high-speed, cyclically rotating band saw, and the sharpness of the band saw directly determines the quality of the slitting.

[0003] Currently, paper slitting machines on the market require workers to maintain and service the band saws after each day's work. Workers use handheld grinders or special sharpening equipment to grind the band saws, which is a waste of time.

[0004] While an automatic sharpening device can be installed on the paper cutting structure to sharpen the band saw, the metal shavings produced after sharpening tend to adhere to the surface of the band saw. When the band saw cuts the paper, the metal shavings will scratch the surface of the paper and affect the appearance of the finished paper. Utility Model Content

[0005] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0006] To address the technical problems mentioned in the background section, some embodiments of this application provide an automatic paper slitting structure with a sharpening function, comprising: a fixed frame, a first rotating wheel, a second rotating wheel, a band saw, a driving component, a motor, a grinding wheel, and a cleaning component; the first and second rotating wheels are both mounted on the fixed frame, the driving component drives the first and second rotating wheels to rotate, and the band saw is mounted on the first and second rotating wheels; the motor is mounted on the fixed frame, and the grinding wheel is mounted at the output end of the motor; the grinding wheel is in contact with the band saw; the cleaning component has two flexible cleaning surfaces; a gap is provided between the two flexible cleaning surfaces for the band saw to pass through, and the distance between the two flexible cleaning surfaces is less than the thickness of the band saw.

[0007] Furthermore, both the motor and the grinding wheel are provided in two sets, with the two sets of grinding wheels located on both sides of the band saw, and one set of grinding wheels being positioned higher than the other set.

[0008] Furthermore, the cleaning component includes: a cylinder and a cleaning sponge; two sets of both the cylinder and the cleaning sponge are provided; the cylinder is mounted on the fixed frame, and the cleaning sponge is mounted on the output end of the cylinder; the side of the cleaning sponge away from the cylinder is provided with the flexible cleaning surface.

[0009] Furthermore, the output end of the cylinder is also provided with a fixing block; the fixing block is provided with a receiving groove for accommodating the cleaning sponge, and a barb portion provided at the edge of the receiving groove; the barb portion is used to fix the cleaning sponge in the receiving groove.

[0010] Furthermore, one set of motors drives the grinding wheel to rotate clockwise, while the other set of motors drives the grinding wheel to rotate counterclockwise.

[0011] Furthermore, the paper cutting structure also includes: a support plate, a mounting block, a connecting plate, a fixing plate, and fixing bolts; the support plate is disposed on the fixing frame, the mounting block is disposed on the support plate, the support plate has a columnar protrusion, and the mounting block has a rotating groove matching the diameter of the columnar protrusion; the connecting plate is disposed on the mounting block, and the motor is disposed at one end of the connecting plate away from the support plate; the columnar protrusion has a square groove; the mounting block has a positioning groove, and multiple positioning grooves are arranged around the circumference of the rotating groove; one end of the fixing plate has a positioning part matching the shape of the square groove, and the other end of the fixing plate has a straight hole matching the diameter of the positioning groove; the fixing bolts are used to insert into the straight hole and the positioning groove to fix the mounting block on the support plate.

[0012] Furthermore, the fixing frame is provided with a receiving space; the first rotating wheel, the second rotating wheel, the motor, the grinding wheel and the cleaning component are all located in the receiving space; a cutting area is provided on one side of the receiving space.

[0013] Furthermore, the paper cutting structure also includes a dustproof door; the dustproof door is hinged to the fixing frame, and the dustproof door is used to close the receiving space.

[0014] The beneficial effects of this application are as follows:

[0015] 1. The paper cutting structure uses a motor to drive a grinding wheel to rotate when cutting paper. The grinding wheel can polish the band saw, eliminating the need for workers to disassemble and polish the band saw, thus saving time.

[0016] 2. The gap between the two flexible cleaning surfaces is smaller than the thickness of the band saw, forming an interference fit on the band saw surface. When the band saw passes through this gap, the flexible cleaning surfaces can scrape off metal debris adhering to the band saw surface, thereby preventing metal debris from adhering to the band saw and avoiding scratches on the paper surface caused by metal debris, which would affect the appearance of the finished paper product. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0018] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0019] In the attached diagram:

[0020] Figure 1 This is an overall schematic diagram based on an embodiment of this application;

[0021] Figure 2 yes Figure 1 The enlarged view of part A mainly shows the structure of the fixing block, the cleaning sponge, and some surrounding parts;

[0022] Figure 3 This is an exploded view of an embodiment, mainly showing the structure of the receiving groove and the barb portion;

[0023] Figure 4 This is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the motor, grinding wheel and some surrounding parts;

[0024] Figure 5 This is an exploded view of an embodiment, mainly showing the structure of the columnar protrusion, positioning groove, fixing plate, and some surrounding parts.

[0025] Figure Labels

[0026] 1. Fixing frame; 11. First rotating wheel; 12. Second rotating wheel; 13. Driving component; 14. Motor; 141. Grinding wheel; 15. Cleaning component; 151. Cylinder; 152. Cleaning sponge; 1521. Flexible cleaning surface; 153. Fixing block; 1531. Receiving groove; 1532. Barbed part; 2. Band saw; 3. Support plate; 31. Columnar protrusion; 32. Square groove; 4. Mounting block; 41. Rotating groove; 42. Positioning groove; 5. Connecting plate; 6. Fixing plate; 61. Positioning part; 62. Straight hole; 7. Fixing bolt; 8. Dustproof door. Detailed Implementation

[0027] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0028] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0029] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0030] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0031] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] Reference Figure 1-5 ,

[0033] An automatic paper slitting structure includes: a fixed frame 1, a first rotating wheel 11, a second rotating wheel 12, a band saw 2, a drive component 13, a motor 14, a grinding wheel 141, and a cleaning component 15. The drive component 13 is a drive motor or a servo motor, preferably a drive motor in this embodiment. The first rotating wheel 11 and the second rotating wheel 12 are both rotatably mounted on the fixed frame 1. The drive component 13 drives the first rotating wheel 11 and the second rotating wheel 12 to rotate; specifically, the drive component 13 drives the first rotating wheel 11 and the second rotating wheel 12 to rotate via belt drive. The band saw 2 is tensioned and wrapped around the first rotating wheel 11 and the second rotating wheel 12. The motor 14 is mounted on the fixed frame 1, and the grinding wheel 141 is bolted to the output end of the motor 14. The grinding wheel 141 contacts the band saw 2 and is used to grind the band saw 2. The cleaning component 15 has two flexible cleaning surfaces 1521; a gap is provided between the two flexible cleaning surfaces 1521 for the band saw 2 to pass through, and the distance between the two flexible cleaning surfaces 1521 is less than the thickness of the band saw 2. The cleaning component 15 is used to clean the surface of the band saw 2 after grinding. During paper cutting, the motor 14 drives the grinding wheel 141 to rotate, which grinds the band saw 2 without requiring workers to disassemble and grind it, saving time. The gap between the two flexible cleaning surfaces 1521 is smaller than the thickness of the band saw 2, forming an interference fit on the surface of the band saw 2. When the band saw 2 passes through this gap, the flexible cleaning surfaces 1521 can scrape off metal debris adhering to the surface of the band saw 2, thus preventing metal debris from adhering to the band saw 2 and avoiding scratches on the paper surface that could affect the appearance of the finished paper.

[0034] Specifically, refer to Figure 1 The motor 14 and the grinding wheels 141 are both provided in two sets, with the two sets of grinding wheels 141 located on both sides of the band saw 2, and one set of grinding wheels 141 positioned higher than the other set. A single grinding wheel 141 can only grind one side of the band saw 2, while both sides of the band saw 2 will wear down during paper cutting. Arranging the grinding wheels 141 on both sides of the band saw 2 allows for simultaneous grinding of both sides, ensuring symmetry and improving cutting quality and the lifespan of the band saw 2.

[0035] Specifically, refer to Figure 2The cleaning component 15 includes a cylinder 151 and a cleaning sponge 152; two sets of both cylinder 151 and cleaning sponge 152 are provided; the cylinder 151 is fixedly mounted on the mounting bracket 1, and the cleaning sponge 152 is located at the output end of the cylinder 151; the side of the cleaning sponge 152 away from the cylinder 151 has a flexible cleaning surface 1521. The cylinder 151 provides an adjustable and stable thrust to ensure that the cleaning sponge 152 always adheres to the surface of the band saw 2 with appropriate pressure. As the cleaning sponge 152 wears and thins during use, the cylinder 151 automatically extends to maintain the contact pressure of the sponge on the band saw 2, ensuring its cleaning effect. The cleaning sponge 152 is a consumable part and requires regular maintenance by personnel. When the cleaning sponge 152 is damaged, it needs to be replaced by personnel. The grinding wheel 141 is similar and will not be described in detail. In other embodiments, the cleaning sponge 152 is replaced with a brush.

[0036] Specifically, refer to Figure 2-3 The output end of the cylinder 151 is also provided with a fixing block 153; the fixing block 153 is provided with a receiving groove 1531 for accommodating the cleaning sponge 152, and a barb portion 1532 provided on the edge of the receiving groove 1531; the barb portion 1532 is a plate-shaped structure. The barb portion 1532 is provided to prevent the sponge from loosening or falling out of the fixing block 153 during the cleaning process. During installation, the user can control the output end of the cylinder 151 to move away from the band saw 2, and then the user holds the cleaning sponge 152 and squeezes the cleaning sponge 152 to reduce its area, and then places the cleaning sponge 152 into the receiving groove 1531. The barb portion 1532 can be inserted into the cleaning sponge 152 to fix the cleaning sponge 152 in the receiving groove 1531.

[0037] Specifically, one set of motors 14 drives the grinding wheel 141 to rotate clockwise, while the other set of motors 14 drives the grinding wheel 141 to rotate counterclockwise. The counterclockwise rotation of the two sets of grinding wheels 141 can use the opposing forces between the two grinding wheels 141 to counteract the lateral forces generated by grinding, which helps to improve the stability of the band saw 2 on the first rotating wheel 11 and the second rotating wheel 12.

[0038] Specifically, refer to Figure 4-5The paper cutting structure also includes: a support plate 3, a mounting block 4, a connecting plate 5, a fixing plate 6, and fixing bolts 7. The support plate 3 is fixedly mounted on the fixing frame 1, and the mounting block 4 is mounted on the support plate 3. The support plate 3 has a columnar protrusion 31, which is a block structure. The mounting block 4 has a rotating groove 41 that matches the diameter of the columnar protrusion 31. The connecting plate 5 is vertically mounted on the mounting block 4, and a motor 14 is fixedly mounted on one end of the connecting plate 5 away from the support plate 3. The columnar protrusion 31 has a square groove 32. The mounting block 4 has a positioning groove 42, and multiple positioning grooves 42 are arranged around the circumference of the rotating groove 41. One end of the fixing plate 6 has a positioning part 61 that matches the shape of the square groove 32, which is a block structure. The other end of the fixing plate 6 has a straight hole 62 that matches the diameter of the positioning groove 42. The fixing bolts 7 are used to insert into the straight hole 62 and the positioning groove 42 to fix the mounting block 4 on the support plate 3. The grinding angle of the band saw 2 has a significant impact on the band saw 2. The square groove 32 and positioning groove 42 provided in this embodiment facilitate the user's adjustment of the grinding angle of the grinding wheel 141 on the band saw 2. During use, the user can control the mounting block 4 to rotate relative to the support plate 3. After the mounting block 4 rotates relative to the support plate 3, the connecting plate 5, motor 14, and grinding wheel 141, which are fixed on the mounting block 4, will also rotate accordingly, thereby adjusting the contact position between the grinding wheel 141 and the band saw 2. After adjusting the contact position between the grinding wheel 141 and the band saw 2, the user can insert one end of the fixing plate 6 with the positioning part 61 into the square groove 32, and then pass the fixing bolt 7 through the straight hole 62 and insert it into the positioning groove 42, which can restrict the rotation of the mounting block 4 relative to the support plate 3.

[0039] Specifically, the mounting frame 1 has a receiving space; the first rotating wheel 11, the second rotating wheel 12, the motor 14, the grinding wheel 141, and the cleaning component 15 are all located within the receiving space; a cutting area is provided on one side of the receiving space. The receiving space is designed to place dangerous components such as the first rotating wheel 11, the second rotating wheel 12, the motor 14, the grinding wheel 141, and the cleaning component 15 within the receiving space, effectively preventing accidental contact by operators and improving equipment safety. The band saw 2 is mostly located within the receiving space, with only a portion of it outside the receiving space; the band saw 2 located in the cutting area is used to cut paper.

[0040] Specifically, refer to Figure 1 The paper cutting structure also includes a dustproof door 8; the dustproof door 8 is hinged to the fixing frame 1, and the dustproof door 8 is used to close the containing space.

[0041] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. An automatic paper slitting structure with sharpening blade, characterized in that, include: The components include a fixed frame, a first rotating wheel, a second rotating wheel, a band saw, a drive unit, a motor, a grinding wheel, and a cleaning unit. The first rotating wheel and the second rotating wheel are both mounted on the fixed frame. The driving component is used to drive the first rotating wheel and the second rotating wheel to rotate. The band saw is mounted on the first rotating wheel and the second rotating wheel. The motor is mounted on the fixed frame, and the grinding wheel is mounted on the output end of the motor; the grinding wheel is in contact with the band saw. The cleaning component has two flexible cleaning surfaces; a gap is provided between the two flexible cleaning surfaces for the band saw to pass through, and the distance between the two flexible cleaning surfaces is less than the thickness of the band saw.

2. The automatic paper slitting structure according to claim 1, characterized in that: Both the motor and the grinding wheel are provided in two sets, with the two sets of grinding wheels located on both sides of the band saw, and the position of one set of grinding wheels is higher than the position of the other set of grinding wheels.

3. The automatic paper slitting structure according to claim 1, characterized in that: The cleaning components include: a cylinder and a cleaning sponge; Two sets of cylinders and two sets of cleaning sponges are provided; the cylinders are mounted on the fixed frame, and the cleaning sponges are mounted on the output end of the cylinders; the side of the cleaning sponge away from the cylinders is provided with the flexible cleaning surface.

4. The automatic paper slitting structure according to claim 3, characterized in that: The cylinder's output end is also provided with a fixing block; The fixing block is provided with a receiving groove for accommodating the cleaning sponge, and a barb portion provided at the edge of the receiving groove; the barb portion is used to fix the cleaning sponge in the receiving groove.

5. The automatic paper slitting structure according to claim 2, characterized in that: One set of motors drives the grinding wheel to rotate clockwise, while the other set of motors drives the grinding wheel to rotate counterclockwise.

6. The automatic paper slitting structure according to claim 1, characterized in that: The paper cutting structure also includes: a support plate, a mounting block, a connecting plate, a fixing plate, and fixing bolts; The support plate is mounted on the fixed frame, the mounting block is mounted on the support plate, the support plate is provided with columnar protrusions, and the mounting block is provided with a rotating groove that matches the diameter of the columnar protrusions; The connecting plate is disposed on the mounting block, and the motor is disposed at one end of the connecting plate away from the support plate; The columnar protrusion has a square groove; the mounting block has a positioning groove, and multiple positioning grooves are arranged around the circumference of the rotating groove; one end of the fixing plate has a positioning part that matches the shape of the square groove, and the other end of the fixing plate has a straight hole that matches the diameter of the positioning groove; the fixing bolt is used to be inserted into the straight hole and the positioning groove to fix the mounting block on the support plate.

7. The automatic paper slitting structure according to claim 1, characterized in that: The mounting frame has a receiving space; the first rotating wheel, the second rotating wheel, the motor, the grinding wheel and the cleaning component are all located in the receiving space; a cutting area is provided on one side of the receiving space.

8. The automatic paper slitting structure according to claim 7, characterized in that: The paper cutting structure also includes: a dustproof door; The dustproof door is hinged to the fixed frame, and the dustproof door is used to close the accommodating space.

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