Filter paper cutting device
By using an independent cutting mechanism and cylinder control, the problem of the cutter not being able to be adjusted independently in existing technologies has been solved, thus improving the convenience of filter paper cutting and increasing production efficiency.
Patent Information
- Application Number
- CN202423099699.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-15
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-15
AI Technical Summary
In existing filter paper cutting devices, the cutters are mounted on the same shaft, making them impossible to control individually, inconvenient to adjust, and affecting production efficiency.
It adopts an independent cutting mechanism, each of which is controlled by a cylinder. The extension or retraction of the cylinder output shaft controls the raising and lowering of the cutter individually, so as to achieve precise cutting of filter paper.
It improves the convenience of cutting and adjustment, reduces the difficulty of adjustment, and ensures production efficiency.
Smart Images
Figure CN223630414U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a filter core production and processing field especially, and relates to a filter paper cutting device. BACKGROUND
[0002] As an effective filter medium, filter paper has been widely used in various fields. The performance and purpose of filter paper are different due to different types of fibers used. Common filter paper, high-temperature filter paper, and ultra-clean polypropylene filter paper are suitable for general occasions. After the production of filter paper is completed, it will be wound on a winding shaft. Subsequently, according to the required filter core, the filter paper is cut to the corresponding width. In the conventional way, it is placed on a unwinding shaft, and then the filter paper is cut to the corresponding width by the cutting mechanism. Subsequently, it is wound by the winding shaft, or after being cut to the corresponding width, it is cut to the required length. In the prior art, when cutting in the width direction (slitting) during the unwinding process of the filter paper, a corresponding number of cutters are installed on a shaft. The bottom of the cutter is in contact with the conveyed filter paper. When the filter paper passes, the filter paper is cut (slitted) by the corresponding cutter. However, this structure has the following disadvantages:
[0003] All cutters are installed on the same shaft. The rotation angle of the shaft drives the cutters and the filter paper to contact and cut the filter paper, or simultaneously drives all cutters to move upward and away from the filter paper, without cutting the filter paper. In this way, each cutter cannot be controlled individually. If adjustment is needed, multiple cutters need to be adjusted simultaneously, or all cutters need to be adjusted, which is very inconvenient. SUMMARY
[0004] The utility model aims at providing a filter paper cutting device. By using this structure, the cutting convenience is improved, and the cutting position can be quickly adjusted.
[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of a filter paper cutting device, which includes a connecting shaft and at least one cutting mechanism installed on the connecting shaft. The cutting mechanism includes a support, a cylinder installed on the support, and a cutter. The support is installed on the connecting shaft. A cutter mounting plate is rotatably installed on the support. The cutter is installed on the cutter mounting plate, and the cutting edge of the cutter is arranged below the front end of the cutter mounting plate.
[0006] The top of the cylinder is rotatably connected to the support. The output shaft of the bottom of the cylinder is connected to the cutter mounting plate. When the output shaft of the cylinder extends and retracts, it drives the cutter mounting plate to rotate around the support and moves the cutting edge of the cutter upward or downward.
[0007] In the technical scheme, a convex strip is arranged on the outer surface of the connecting shaft and extends along the axis direction of the connecting shaft, a through hole is arranged in the middle part of the support, the support is sleeved on the connecting shaft through the through hole, and a notch matched with the convex strip is arranged on the inner wall of the through hole.
[0008] A limiting bolt is further arranged on the support to limit the support on the connecting shaft.
[0009] In the technical scheme, the support comprises a vertical plate, a sleeve arranged on the right side of the vertical plate, and a limiting sleeve arranged on the right end of the sleeve, the through hole and the notch are arranged on the sleeve, the bottom of the vertical plate is mounted on the left outer surface of the sleeve, the limiting sleeve is mounted on the right outer surface of the sleeve, and the rear end of the cutter mounting plate is rotatably mounted on the sleeve between the vertical plate and the limiting sleeve.
[0010] The top of the air cylinder is rotatably connected with the right upper side of the vertical plate through a rotating shaft.
[0011] In the technical scheme, the limiting bolt is mounted on the side wall of the vertical plate, the inner end of the limiting bolt penetrates through the sleeve and abuts against the outer surface of the connecting shaft, or the inner end of the limiting bolt penetrates through the sleeve and abuts against the side wall of the convex strip.
[0012] In the technical scheme, a convex block is arranged on the left side of the vertical plate, the limiting bolt is connected with the convex block through screwing, the rear end of the limiting bolt is provided with a cam, the outer surface of the cam abuts against the side wall of the convex strip, and the support is limited on the connecting shaft.
[0013] In the technical scheme, a connecting plate is arranged on the right side of the cutter mounting plate, the bottom rear side of the connecting plate is rotatably connected with the right side wall of the cutter mounting plate, the connecting plate is arranged on the front side of the connecting shaft, and the cutter is arranged below the front end of the connecting plate.
[0014] In the technical scheme, the output shaft of the air cylinder is connected with the connecting plate through a connecting piece, the connecting piece comprises an upper plate and a connecting rod, the upper plate is connected with the output shaft of the air cylinder, the connecting rod is arranged on the front side of the output shaft of the air cylinder and is parallel to the output shaft of the air cylinder, the top of the connecting rod is fixedly connected with the front side of the upper plate, and the bottom of the connecting rod is fixedly connected with the top front side of the connecting plate.
[0015] In the technical scheme, a cutter mounting groove is arranged on the front end side wall of the cutter mounting plate, the rear end of the cutter is placed in the cutter mounting groove, a cutter limiting block is further arranged beside the cutter mounting groove, the cutter limiting block is connected with the cutter mounting plate through a locking bolt, and the middle part of the locking bolt penetrates into the cutter.
[0016] In the technical scheme, the shaft is provided with at least two groups of cutting mechanisms, and the groups of cutting mechanisms are arranged along the axial direction of the shaft.
[0017] Compared with the prior art, the utility model has the following advantages:
[0018] 1. In the utility model, the cutting mechanism is installed on the shaft, a cutter is installed on each cutting mechanism, the cutter is rotatably connected through the cutter mounting plate and the support, a cylinder is installed on the support, the corresponding cutter mounting plate is controlled by the cylinder, the extension and retraction of the cylinder output shaft are used to control the descent of a cutter for cutting the filter paper or the ascent of the cutter without cutting the filter paper, the convenience of cutter adjustment is improved, the cutter can be quickly adjusted, the cutting of the filter paper is quickly adjusted, and the production efficiency is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0019] Fig. 1 is the structural schematic view of the embodiment one of the utility model, and
[0020] Fig. 2 is the structural schematic view of the cutting mechanism in the embodiment one of the utility model, and
[0021] Fig. 3 is the structural schematic view of another view of the cutting mechanism in the embodiment one of the utility model.
[0022] 1, the shaft, 2, the cutting mechanism, 3, the support, 4, the cylinder, 5, the cutter, 6, the cutter mounting plate, 7, the convex strip, 8, the through hole, 9, the notch, 10, the limiting bolt, 11, the vertical plate, 12, the sleeve, 13, the limiting sleeve, 14, the convex block, 15, the cam, 16, the connecting plate, 17, the upper plate, 18, the connecting rod, 19, the cutter limiting block, 20, the locking bolt, 21, the rotating shaft. DETAILED DESCRIPTION
[0023] The utility model is further described below in combination with the drawings and embodiments:
[0024] Embodiment one: referring to the drawing, Figs. 1-3 a kind of filter paper cutting device, including shaft 1 and at least one cutting mechanism 2 installed on shaft, the cutting mechanism 2 includes support 3, cylinder 4 and cutter 5 installed on support 3, the support 3 is installed on the shaft 1, the support 3 is rotatably installed with a cutter mounting plate 6, the cutter 5 is installed on the cutter mounting plate 6, and the cutting edge of the cutter 5 is arranged below the front end of the cutter mounting plate 6;
[0025] The top of the cylinder 4 is rotatably connected with the support 3, and the output shaft of the bottom of the cylinder 4 is connected with the cutter mounting plate 6; when the output shaft of the cylinder 4 extends and retracts, the cutter mounting plate 6 is driven to rotate around the support 3, and the blade of the cutter 5 moves upward or downward.
[0026] In the utility model, at least two cutting mechanisms are installed on the connecting shaft, and the plurality of cutting mechanisms are arranged along the axial direction of the connecting shaft. In the embodiment, four cutting mechanisms are arranged on the upper surface of the connecting shaft and are arranged transversely and spaced apart from left to right. The filter paper passes below the connecting shaft, and the two ends of the connecting shaft are installed on the support. The moving direction of the filter material is perpendicular to the connecting shaft. When the cutting position of the filter paper needs to be cut, the position of the cutting mechanism relative to the connecting shaft is adjusted so that the cutter is opposite the cutting position of the filter paper. When cutting is needed, the output shaft of the cylinder extends, the front end of the cutter mounting plate is driven to rotate downward, the blade of the cutter penetrates the filter paper and contacts the filter paper, and then the filter paper is cut (slit) during the forward movement of the filter paper. In the embodiment, the front end of the cutter is a sharp end, and the blade of the cutter is arranged on the bottom surface of the cutter. When the front end of the cutter mounting plate is driven to rotate downward by the cylinder, the sharp end of the cutter penetrates the filter material, and the blade of the cutter contacts the filter paper during the forward movement of the filter paper. The filter paper is cut by the blade of the cutter. When the corresponding position of the filter paper does not need to be cut, the output shaft of the cylinder retracts, the front end of the cutter mounting plate is driven to rotate upward, and the cutter moves upward and separates from the filter paper. At this time, the filter paper is conveyed, and the cutting position is not cut. If the cutting position of the filter paper needs to be adjusted, the output shaft of the cylinder retracts, and then the cutter moves upward and separates from the filter paper. At this time, the cutting mechanism is moved, the position of the cutter on the connecting shaft is adjusted, and the cutter is opposite another cutting position that needs to be cut. Then the output of the cylinder extends, the cutter moves downward, the blade of the cutter contacts the filter paper, and the cutting of the filter paper is realized. Compared with the structure in which all the cutters are installed on the same connecting shaft and the connecting shaft rotates to drive the cutters to contact the filter paper, when the cutters need to be adjusted, the output shaft of the corresponding cylinder retracts, the cutters are separated from the filter paper, and then the position of the cutting mechanism is adjusted. The cutters do not need to be separated from the filter paper, especially for the cutting mode that needs to adjust a cutting position. The convenience of adjustment is improved, the difficulty of adjustment is reduced, and adjustment can be performed during equipment operation.
[0027] Referring to Figs. 1-3As shown, a protrusion 7 is provided on the outer surface of the connecting shaft 1, and the protrusion 7 extends along the axial direction of the connecting shaft 1. A through hole 8 is provided in the middle of the bracket 3, and the two ends of the through hole 8 are respectively connected to the left side wall and the right side wall of the bracket 3. The bracket 3 is sleeved on the connecting shaft 1 through the through hole 8. A notch 9 matching the protrusion 7 is provided on the inner wall of the through hole 8, and the two ends of the notch 9 are respectively connected to the left side wall and the right side wall of the bracket 3. The notch 9 is parallel to the axial direction of the through hole 8.
[0028] The bracket 3 is also provided with a limiting bolt 10, which limits the bracket 3 to the connecting shaft 1.
[0029] In this embodiment, the bracket is directly and movably mounted on the coupling shaft through a through hole. This facilitates the distance between the bracket and the end of the coupling shaft. Furthermore, a limiting bolt is used to limit the bracket on the coupling shaft, preventing the cutting mechanism from not moving relative to the coupling shaft when its position does not need adjustment. When the cutting mechanism's position needs adjustment, the limiting bolt is loosened, allowing the bracket to move relative to the coupling shaft. After adjustment, the limiting bolt is tightened. Simultaneously, to prevent the bracket from rotating relative to the coupling shaft, a raised rib is provided on the outer surface of the coupling shaft, and a notch matching the raised rib is provided on the inner wall of the through hole, used to restrict the bracket's rotation relative to the coupling shaft and ensure the bracket's position.
[0030] See Fig. 2 , 3 As shown, the bracket 3 includes a vertical plate 11, a sleeve 12 disposed on the right side of the vertical plate 11, and a limiting sleeve 13 disposed on the right end of the sleeve 12. The through hole 8 and the notch 9 are disposed inside the sleeve 12, and the two ends of the through hole 8 and the notch 9 are connected to the left and right ends of the sleeve 12. The bottom of the vertical plate 11 is fixedly installed on the left outer surface of the sleeve 12, and the limiting sleeve 13 is installed on the right outer surface of the sleeve 12. The rear end of the cutter mounting plate 6 is rotatably installed on the sleeve 12 between the vertical plate 11 and the limiting sleeve 13.
[0031] The top of the cylinder 4 is rotatably connected to the upper right side of the vertical plate 11 via a rotating shaft 21.
[0032] In the embodiment, the vertical plate is fixedly installed on the left outer surface of the sleeve, so that the cutter mounting plate can rotate relative to the sleeve and be conveniently installed on the sleeve. Therefore, the rear end of the cutter mounting plate is provided with a hole for directly sleeving on the sleeve. Then, a limiting sleeve is sleeved on the right end outer surface of the sleeve. The limiting sleeve and the vertical plate form an annular space. The rear end of the cutter mounting plate is rotatably installed on the sleeve between the vertical plate and the limiting sleeve. The limiting sleeve is locked on the sleeve by bolts. In this way, after the limiting sleeve is disassembled, the cutter mounting plate can be conveniently disassembled from the right end of the sleeve. When the cutter mounting plate needs to be installed, the cutter mounting plate is sleeved on the sleeve, and then the limiting sleeve is installed, so that the right side of the cutter mounting plate is limited. The rear end of the cutter mounting plate is supported by the sleeve, and the front end of the cutter mounting plate is connected with the output shaft of the air cylinder. Therefore, when the output shaft of the air cylinder extends and retracts, the front end of the cutter mounting plate can move up and down, so as to drive the cutter to contact or separate from the filter paper.
[0033] The limiting bolt can be installed in various ways. In the embodiment, there are two kinds of installation ways. The first kind is that the limiting bolt is installed on the side wall of the vertical plate. The inner end of the limiting bolt penetrates the sleeve and abuts against the outer surface of the connecting shaft, or the inner end of the limiting bolt penetrates the sleeve and abuts against the side wall of the convex strip. In this way, the limiting bolt is installed on the front side or the rear side of the vertical plate. The limiting bolt is screwed with the vertical plate. The sleeve is provided with a hole for the limiting bolt. When the sleeve needs to be moved, the limiting bolt is loosened, so that the end is separated from the connecting shaft or the convex strip. Then, the sleeve can be moved relative to the connecting shaft. After the movement is completed, the limiting bolt is tightened, so that the limiting bolt abuts against the connecting shaft or the convex strip. Thus, the sleeve is limited on the connecting shaft, and the sleeve cannot move relative to the connecting shaft.
[0034] The second kind is that the left side of the vertical plate 11 is provided with a convex block 14. The limiting bolt 10 is screwed with the convex block 14. The rear end of the limiting bolt 10 is provided with a cam 15. The outer surface of the cam 15 abuts against the side wall of the convex strip 7 and limits the support 3 on the connecting shaft 1. In the embodiment, the second structure is adopted. Referring to FIG. 6. Fig. 3
[0035] In this method, the limiting bolt and the protrusion are screwed together, and a cam is set at its rear end. The cam has a major axis and a minor axis. The distance between the side wall of the protrusion and the axis of the limiting bolt (cam axis) is 'a'. When the minor axis of the cam is directly opposite the side wall of the protrusion, the distance between the outer surface of the minor axis of the cam and the side wall of the protrusion is 'b'. When the major axis of the cam is directly opposite the side wall of the protrusion, the distance between the outer surface of the cam and the side wall of the protrusion is 'c', where a>b and a≦c. Therefore, when the minor axis of the cam is directly opposite the protrusion, the cam and the protrusion do not contact each other, and the bracket can move relative to the connecting shaft. When the major axis of the cam is directly opposite the protrusion, or when the major and minor axes of the cam are directly opposite the protrusion, the outer surface of the cam will abut against the side wall of the protrusion, thereby locking the two and preventing the bracket from moving relative to the connecting shaft. In this method, the limiting relationship between the bracket and the connecting shaft can be seen most intuitively, and it is also easy to adjust.
[0036] See Fig. 2 , 3 As shown, a connecting plate 16 is provided on the right side of the cutter mounting plate 6. The bottom rear side of the connecting plate 16 is rotatably connected to the right side wall of the cutter mounting plate 6. The connecting plate 16 is located on the front side of the connecting shaft 1, and the cutter 5 is located below the front end of the connecting plate 16.
[0037] To facilitate the connection between the cylinder's output shaft and the cutter mounting plate, a connecting plate is provided on the side of the cutter mounting plate for connecting with the cylinder's output shaft.
[0038] The output shaft of the cylinder is connected to the connecting plate via a connector; the connector includes an upper plate 17 and a connecting rod 18. The upper plate 17 is connected to the output shaft of the cylinder 4, and the connecting rod 18 is located on the front side of the output shaft of the cylinder 4 and is parallel to the output shaft of the cylinder 4. The top of the connecting rod 18 is fixedly connected to the front side of the upper plate 17, and the bottom of the connecting rod 18 is fixedly connected to the top front side of the connecting plate 16.
[0039] Since the size of the upright plate is not set to be large, and the size of the sleeve is relatively large, the output shaft of the cylinder may not be able to connect with the connecting plate normally. Therefore, a connecting rod and an upper plate are set so that during the extension and retraction of the cylinder output shaft, it can be connected to the connecting plate through the connecting rod to drive the rotation of the cutter mounting plate. In this structure, the size of the upright plate can be reduced, minimizing the space occupied.
[0040] See Fig. 2 , 3As shown, the front end side wall of the cutter mounting plate 6 is provided with a cutter mounting groove, and the rear end of the cutter is placed in the cutter mounting groove; the side of the cutter mounting groove is further provided with a cutter limiting block 19, the cutter limiting block 19 is connected with the cutter mounting plate 6 through a locking bolt 20, and the middle part of the locking bolt is provided in the cutter.
[0041] The depth of the cutter mounting groove is less than the thickness of the cutter, so after the cutter is placed into the cutter mounting groove, the side part of the cutter is exposed outside the cutter mounting plate, then the cutter limiting block is abutted on the cutter exposed outside the cutter mounting plate, and the cutter limiting block, the cutter and the cutter mounting plate are locked by the locking bolt. Two external holes are arranged on the cutter limiting block, two middle holes are arranged on the cutter, and two screw holes are arranged in the cutter mounting groove, the external holes, the middle holes and the screw holes are arranged opposite to each other, the locking bolt is screwed through the external holes, the middle holes and the screw holes, and the connection of the cutter limiting block, the cutter and the cutter mounting plate is realized. In this way, if the cutter needs to be replaced due to wear, the cutter limiting block can be disassembled, and then the cutter can be replaced, so the replacement is convenient and fast.
Claims
1. A filter paper cutting apparatus, characterized by: The cutting mechanism comprises a support, a cylinder and a cutter, the support is installed on the connecting shaft, a cutter mounting plate is rotatably installed on the support, the cutter is installed on the cutter mounting plate, and the cutting edge of the cutter is arranged below the front end of the cutter mounting plate; The top of the cylinder is rotatably connected with the support, the output shaft of the bottom of the cylinder is connected with the cutter mounting plate, when the output shaft of the cylinder extends and retracts, the cutter mounting plate is driven to rotate around the support, and the cutting edge of the cutter moves upward or downward.
2. The filter paper cutting apparatus according to claim 1, wherein: A convex strip is arranged on the outer surface of the connecting shaft and extends along the axial direction of the connecting shaft, a through hole is arranged in the middle of the support, and the support is sleeved on the connecting shaft through the through hole; a notch matching the convex strip is arranged on the inner wall of the through hole; A limiting bolt is further arranged on the support, and the limiting bolt limits the support on the connecting shaft.
3. The filter paper cutting apparatus according to claim 2, wherein: The support comprises a vertical plate, a sleeve arranged on the right side of the vertical plate, and a limiting sleeve arranged on the right end of the sleeve, the through hole and the notch are arranged on the sleeve, the bottom of the vertical plate is installed on the left outer surface of the sleeve, the limiting sleeve is installed on the right outer surface of the sleeve, and the rear end of the cutter mounting plate is rotatably installed on the sleeve between the vertical plate and the limiting sleeve; The top of the cylinder is rotatably connected with the right side of the vertical plate through a rotating shaft.
4. The filter paper cutting apparatus according to claim 3, wherein: The limiting bolt is installed on the side wall of the vertical plate, the inner end of the limiting bolt penetrates through the sleeve and abuts against the outer surface of the connecting shaft, or the inner end of the limiting bolt penetrates through the sleeve and abuts against the side wall of the convex strip.
5. The filter paper cutting apparatus according to claim 3, wherein: A convex block is arranged on the left side of the vertical plate, the limiting bolt is connected with the convex block in a screwing manner, the rear end of the limiting bolt is provided with a cam, the outer surface of the cam abuts against the side wall of the convex strip, and the support is limited on the connecting shaft.
6. The filter paper cutting apparatus of claim 1, wherein: A connecting plate is arranged on the right side of the cutter mounting plate, the bottom rear side of the connecting plate is rotatably connected with the right side wall of the cutter mounting plate, the connecting plate is arranged on the front side of the connecting shaft, and the cutter is arranged below the front end of the connecting plate.
7. The filter paper cutting apparatus according to claim 6, wherein: The output shaft of the cylinder is connected with the connecting plate through a connecting piece; the connecting piece comprises an upper plate and a connecting rod, the upper plate is connected with the output shaft of the cylinder, the connecting rod is arranged on the front side of the output shaft of the cylinder, and the connecting rod is arranged parallel to the output shaft of the cylinder, the top of the connecting rod is fixedly connected with the front side of the upper plate, and the bottom of the connecting rod is fixedly connected with the top front side of the connecting plate.
8. The filter paper cutting apparatus of claim 1, wherein: A cutter mounting groove is arranged on the front end side wall of the cutter mounting plate, the rear end of the cutter is arranged in the cutter mounting groove; a cutter limiting block is further arranged beside the cutter mounting groove, the cutter limiting block is connected with the cutter mounting plate through a locking bolt, and the middle of the locking bolt penetrates into the cutter.
9. The filter paper cutting apparatus of claim 1, wherein: At least two groups of cutting mechanisms are installed on the connecting shaft, and the groups of cutting mechanisms are arranged at intervals along the axial direction of the connecting shaft.