Dust removal device for rolling cutter

Abstract

The utility model relates to the technical field of cutter machinery, and discloses a rolling cutter dust removal device which comprises a cutter assembly used for cutting off foil materials, the cutter assembly comprises a cutter, and the cutter is arranged between a first passing roller and a second passing roller and rotationally connected with the second passing roller; the edge of the cutter is arranged outwards; the dust removal box comprises a dust inlet inclined in the front side, a dust outlet located in the bottom and a guide back plate, the dust removal box is arranged on the outer side of the cutter in a sleeving mode, the dust outlet faces the outside through the dust inlet, the cutter is arranged in the center of a cavity of the dust removal box, the top of the dust inlet abuts against the top of the first passing roller, and the bottom of the dust inlet abuts against the second passing roller; the cutter divides the dust inlet into a first air inlet and a second air inlet; and the negative pressure mechanism is communicated with the dust outlet and is used for pumping away the dust particles in the dust removal box. According to the cutting dust removal device, more dust particles can fall into the dust removal box, so that a better cutting dust removal effect is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of cutting machine technology, specifically relating to a dust removal device for a winding cutter. Background Technology

[0002] In the electrode manufacturing process, post-cutting dust removal is an essential and critical step. Currently, after the cutter cuts the electrode, the dust generated is separated into two areas by the cutter. Some of the dust in the area in front of the cutter falls to the area below the front roller due to inertia, while some of the dust in the area behind the cutter falls to the area below the rear roller due to the airflow generated by the cutter's retraction.

[0003] To address the dust problem, existing technologies typically employ negative pressure dust collection boxes. While most dust can indeed be removed by these boxes, a significant amount remains scattered around the equipment. The air pressure generated by the negative pressure suction of traditional dust collection devices cannot completely counteract the kinetic energy of large dust particles. Consequently, some dust particles from the areas on both sides of the cutter fall onto the rollers or the outer surface of the dust collection box. These unadsorbed large dust particles not only pollute the production environment but may also affect the quality of electrode production, disrupt normal equipment operation, reduce production efficiency, and increase equipment maintenance costs. Utility Model Content

[0004] To address the shortcomings of the prior art, this utility model provides a dust removal device for a winding cutter. By placing the cutter at the center of the dust collection box and dividing the dust inlet of the dust collection box into a first air inlet and a second air inlet by the cutter, the air on both sides of the cutter can carry more dust particles into the dust collection box.

[0005] The technical effects to be achieved by this utility model are realized through the following aspects:

[0006] This utility model provides a dust removal device for a winding cutter, used to be disposed between a first guide roller and a second guide roller, wherein foil moving along a first conveying direction is placed on the first guide roller and the second guide roller, the first conveying direction being the direction of conveying from the first guide roller to the second guide roller, including:

[0007] A cutting assembly for cutting foil, the cutting assembly including a cutting blade disposed between a first guide roller and a second guide roller, and rotatably connected to the second guide roller; the cutting edge of the cutting blade is arranged outward;

[0008] A dust collector box includes a front-sloping dust inlet, a bottom dust outlet, and a guide back plate. The dust collector box is fitted over the outside of the cutter. The dust outlet faces outwards through the dust inlet. The cutter is positioned at the center of the dust collector box cavity. The top of the dust inlet abuts against the top of the first roller, and the bottom of the dust inlet abuts against the second roller. The cutter divides the dust inlet into a first air inlet and a second air inlet.

[0009] A negative pressure mechanism, connected to the dust outlet, is used to remove dust particles from the dust collection box.

[0010] In some implementations, the angle between the extension line of the dust inlet in the width direction and the horizontal direction is greater than 90 degrees.

[0011] In some implementations, the guide back plate is provided with a bend structure that is adapted to the shape of the cutter, so that an air duct is formed between the guide back plate and the cutter.

[0012] In some implementations, the top height of the guide back plate is greater than the height of the blade when the cutter is in its initial state.

[0013] In some implementations, the guide back plate has a bent portion at the edge near the dust inlet, the bent portion is bent at an angle toward the cutter, and the bent portion and the cutter form the first air inlet.

[0014] In some implementations, the dust collector box further includes a front baffle that is tilted outward away from the dust collector box, and the top of the front baffle is lower than the horizontal plane where the axis of the second roller is located.

[0015] In some implementations, the cutter assembly further includes a fixing plate, the bottom of which is higher than the horizontal plane where the axis of the second roller is located, and forms the second air inlet between the fixing plate and the top of the front baffle.

[0016] In some implementations, when the cutter cuts the foil, the bottom of the fixing plate is located at the middle of the dust inlet formed by the top of the dust collection box and the top of the front baffle.

[0017] In some implementations, the top of the dust inlet is higher than the axis of the rubber roller, the negative pressure mechanism includes a negative pressure tube, and the dust outlet is located at the end of the negative pressure tube; the guide back plate is aligned with one side of the negative pressure tube.

[0018] In some implementations, the mapping width of the dust inlet on the horizontal plane is greater than the mapping width of the dust outlet on the horizontal plane.

[0019] In summary, this utility model has at least the following advantages:

[0020] This utility model provides a dust removal device for a winding cutter. A dust collection box is installed on the outside of the cutter assembly to collect dust particles. A negative pressure mechanism connects the dust collection box's outlet for suction dust removal. The cutter divides the dust collection box's inlet into a first air inlet and a second air inlet, ensuring that dust generated in the areas in front of and behind the cutter is collected by the dust collection box. The dust collection box also has a guide back plate, which guides dust particles and directs airflow, allowing larger dust particles to be drawn into the dust collection box by negative pressure. This reduces the impact of dust on equipment production, achieves better dust removal, and improves the equipment's operational stability and service life. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the dust removal device for the winding cutter in Embodiment 1 of this utility model.

[0022] Figure 2 This is a partial side view of the dust removal device for the winding cutter in Embodiment 1 of this utility model.

[0023] Figure 3 This is a partial side view of the dust removal device for the winding cutter in embodiments 2 and 3 of this utility model.

[0024] Figure 4 This is a simulation diagram of the cutting dust trajectory in Embodiment 3 of this utility model.

[0025] Marked in the image:

[0026] 1. Cutting assembly; 11. Cutting blade; 12. Fixing plate; 13. Cutting cylinder; 2. Dust collection box; 21. Dust inlet; 211. First air inlet; 212. Second air inlet; 22. Dust outlet; 23. Guide back plate; 231. Folding structure; 232. Bending part; 24. Front baffle; 3. First roller; 4. Second roller; 5. Foil material; 6. Negative pressure mechanism; 61. Negative pressure pipe. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of this utility model.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] Example 1:

[0030] Please see Figure 1 and Figure 2 The present invention discloses a structure for a winding and cutting dust removal device, which is used to be disposed between a first guide roller 3 and a second guide roller 4. The first guide roller 3 and the second guide roller 4 are used to place foil 5 moving along a first conveying direction A, which is the direction of conveying from the first guide roller 3 to the second guide roller 4. The device includes: a cutting assembly 1 for cutting the foil 5; the cutting assembly 1 includes a cutting blade 11, which is disposed between the first guide roller 3 and the second guide roller 4 and rotatably connected to the second guide roller 4; the cutting edge of the cutting blade 11 faces outwards; and a dust collection box 2. The dust collector 2 includes a front-inclined dust inlet 21, a bottom-mounted dust outlet 22, and a guide back plate 23. The dust collector 2 is fitted on the outside of the cutter 11. The dust outlet 22 faces outward through the dust inlet 21. The cutter 11 is located at the center of the dust collector 2 cavity. The top of the dust inlet 21 is close to the top of the first roller 3, and the bottom of the dust inlet 21 is close to the second roller 4. The cutter 11 divides the dust inlet 21 into a first air inlet 211 and a second air inlet 212. The dust collector 2 also includes a negative pressure mechanism 6, which is connected to the dust outlet 22 and is used to remove dust particles from the dust collector 2.

[0031] Specifically, the dust removal device for the rewind cutter 11 includes a dust collection box 2, a cutter assembly 1 installed inside the dust collection box 2, and a negative pressure mechanism 6. The dust collection box 2 has an internal cavity structure, is fitted around the outside of the cutter assembly 1, and is adapted to collect the dust particles cut off by the cutter assembly 1. The dust collection box 2 includes two openings: a dust inlet 21 facing the cutter assembly 1 and a dust outlet 22 connecting to the bottom negative pressure mechanism 6. In addition, the dust inlet 21 is divided into a first air inlet 211 and a second air inlet 212 by the cutter assembly 1, for sucking up dust particles from both sides of the cutter 11 inside the cutter assembly 1. The first air inlet 211 is used to suck up dust particles falling in the opposite direction to the first conveying direction A, and the second air inlet 212 is used to suck up dust particles falling in the same direction as the first conveying direction A. The dust collection box 2 also includes a guide back plate 23, which is used to catch and guide the cut dust particles.

[0032] During use, the foil 5 is conveyed along the first roller 3 to the second roller 4, and this conveying direction is defined as the first conveying direction A. The cutter assembly 1 and the dust collection box 2 sleeved on the outside of the cutter assembly 1 are both located between the first roller 3 and the second roller 4, with the dust inlet 21 of the dust collection box 2 facing the second roller 4. The cutter assembly 1 is rotatably connected to the shaft of the second roller 4 and is driven by an external cutter cylinder 13, causing the cutter 11 of the cutter assembly 1 to rotate around the second roller 4 and cut the foil 5. At the same time, the negative pressure mechanism 6 provides negative pressure to the dust collection box 2 and removes dust particles from the cavity of the dust collection box 2.

[0033] It is worth noting that some of the dust particles generated by the cutter 11 are affected by the wind generated when the cutter 11 is retracted. These dust particles will enter the dust collection box 2 through the first air inlet 211. Larger dust particles will collide with the guide back plate 23, which will intercept the dust particles and guide them to fall into the dust collection box 2. This prevents the wind pressure generated in the dust collection box 2 from being insufficient to offset the kinetic energy of the larger dust particles, which would result in large dust particles falling onto the rubber roller and then falling to the lower rear of the rubber roller or falling outside the dust collection box 2 as the rubber roller rotates. The other part of the dust particles generated by the cutter 11 cutting the foil 5 will be affected by inertia and fall in the direction of the first conveying direction A. The wind pressure generated by the second air inlet 212 will carry the dust particles into the dust collection box 2.

[0034] In this embodiment, the dust collector 2 is sleeved on the outside of the cutter 11, which can eliminate dust particles from the location where they are generated, thereby reducing the pollution to the production environment. Moreover, the dust inlet 21 of the dust collector 2 is divided into a first air inlet 211 and a second air inlet 212 by the cutter 11. The negative pressure mechanism 6 generates negative pressure at the dust inlet 21 of the dust collector 2, so that the air on both sides of the cutter 11 can carry more dust particles into the interior of the dust collector 2, achieving multi-directional dust removal. The guide back plate 23 of the dust collector 2 can trap large dust particles, making the dust removal effect of the dust collector 2 better.

[0035] Example 2:

[0036] This embodiment is a further structural optimization of the dust removal device for the winding cutter of this utility model. Please refer to [link / reference]. Figure 3 .

[0037] In some embodiments, the angle between the extension line of the dust inlet 21 in the width direction and the horizontal direction is greater than 90 degrees.

[0038] Specifically, the dust inlet 21 has an angle θ between its extension in the width direction and the horizontal direction. This angle θ is greater than 90°, making the dust inlet 21 an inclined open shape, which facilitates the collection of dust particles. In another embodiment, the angle θ can be selected, but is not limited to, 104°. This large-angle inclined dust inlet 21 design allows dust to enter the dust collection box 2 more smoothly, greatly improving the dust particle collection efficiency. Even dust particles with high kinetic energy can more easily enter the dust collection box 2 under the combined action of gravity and negative pressure, reducing the possibility of dust particles escaping into the external environment.

[0039] It is understandable that the angle between the extension line of the dust inlet 21 in the width direction and the horizontal direction is θ. In actual application, the tilt should be adjusted according to the actual setting of the first roller 3 and the second roller 4. When the angle θ is greater than 90°, there will be a better dust particle collection effect. This application does not limit this.

[0040] In some embodiments, the guide back plate 23 is provided with a bend structure 231, which is adapted to the shape of the cutter 11 so that an air duct is formed between the guide back plate 23 and the cutter 11.

[0041] Specifically, in order to maximize the dust removal space, the dust inlet 21 is tilted as much as possible toward the first roller 3. In order to avoid the guide back plate 23 interfering with the first roller 3, a bending mechanism is provided. The bending structure 231 is designed to match the contour of the cutter 11. At the middle position of the guide back plate 23, an inward bending structure 231 is formed along the arc direction of the blade of the cutter 11. The bending structure 231 and the cutter 11 form a stable dust suction air duct.

[0042] To achieve better dust removal, in some embodiments, the top height of the guide back plate 23 is greater than the height of the blade of the cutter 11 in its initial state. This prevents the cut dust particles from flying out from the top of the guide back plate 23 and also increases the interception area for dust particles, resulting in better dust removal.

[0043] To improve the dust removal effect of the first air inlet 211, in some embodiments, the guide back plate 23 has a bent portion 232 near the edge of the dust inlet 21. The bent portion 232 is bent at an angle towards the cutter 11, and the bent portion 232 and the cutter 11 form the first air inlet 211. The inclined surface of the bent portion 232 makes the air duct more unobstructed and can work with the cutter 11 to achieve a converging and gathering effect. Since the movement direction of dust particles is relatively dispersed, the structure of the bent portion 232 inclined towards the cutter 11 can form an effective wind pressure guiding effect on the dust particles, making it easier for the dust particles to enter the first air inlet 211.

[0044] In some embodiments, the dust collector 2 further includes a front baffle 24, which is inclined outward in a direction away from the dust collector 2, and the top of the front baffle 24 is lower than the horizontal plane where the axis of the second roller 4 is located.

[0045] Specifically, the dust collector 2 has a front baffle 24 at the bottom. Some dust particles diffuse outwards from the dust collector 2 due to inertia and other factors. The outward-sloping structure of the front baffle 24 can trap dust particles that fall near the bottom of the dust inlet 21, preventing larger dust particles from being carried into the dust collector 2 by negative pressure air due to gravity. This effectively prevents dust particles from falling and polluting the production workshop. The top of the front baffle 24 is set below the horizontal plane where the axis of the second roller 4 is located to increase the width of the dust inlet 21 and avoid it being too close to the cutter assembly 1, which would make the air outlet too small and affect the overall dust removal effect.

[0046] In some embodiments, the cutter assembly 1 further includes a fixing plate 12, the bottom of which is higher than the horizontal plane where the axis of the second roller 4 is located, and forms a second air inlet 212 between the fixing plate 12 and the top of the front baffle 24.

[0047] Specifically, the cutter 11 of the cutter assembly 1 is connected to the second roller 4 through the fixing plate 12, and the cutter assembly 1 is fixedly set in the middle position of the dust collection box 2. When the cutter 11 cuts the foil 5, the fixing plate 12 that fixes the cutter 11 and the front baffle 24 form the conveying channel of the second air inlet 212. At this time, the fixing plate 12 is located in the middle position of the dust inlet 21, so that the dust collection box 2 can better intercept the dust particles falling to the bottom.

[0048] Example 3:

[0049] This embodiment is a further structural optimization of the dust removal device for the winding cutter of this utility model. Please refer to [link / reference]. Figure 3 and Figure 4 .

[0050] In some embodiments, the negative pressure mechanism 6 includes a negative pressure tube 61, with a dust outlet 22 located at the end of the negative pressure tube 61; the guide back plate 23 is aligned with one side of the negative pressure tube 61.

[0051] Specifically, the negative pressure mechanism 6 extracts the dust particles collected inside the dust collector box 2 through the negative pressure pipe 61. The negative pressure pipe 61 is adapted to the bottom dust outlet 22 of the dust collector and is set into a conical funnel-shaped structure. The guide back plate 23 of the dust collector box 2 and the vertical line of the negative pressure pipe 61 are on the same plane, that is, the guide back plate 23 and one side of the negative pressure pipe 61 are on the same straight line, which facilitates the rapid extraction of dust particles and avoids the accumulation of dust particles on the guide back plate 23, thus affecting the dust removal efficiency.

[0052] In some embodiments, the mapping width of the dust inlet 21 on the horizontal plane is greater than the mapping width of the dust outlet 22 on the horizontal plane.

[0053] Specifically, the width of the dust inlet 21 on the horizontal plane, i.e., the inclined setting of the dust inlet 21, is greater than the width of the dust outlet 22 located at the bottom of the dust collector 2, giving the dust collector 2 a larger area for trapping dust particles. Furthermore, as dust particles enter through the dust inlet 21, the channel leading to the dust outlet 22 gradually narrows. Under the gradually accelerating airflow, they can move more quickly towards the dust outlet 22, making it less likely for dust particles to remain or accumulate inside the dust collector 2.

[0054] In some embodiments, such as Figure 4 As shown, a cutting simulation analysis was performed on the dust collection box 2 made in Examples 1-3. The dust collection efficiency was measured for different dust particle sizes, and the results of the dust collection efficiency measurement for each group of particle sizes are shown in Table 1.

[0055] Table 1

[0056]

[0057]

[0058] It is worth noting that the cutter 11 performs the cutting process, evenly distributing 2000 particles on the electrode cutting line and releasing them. Since the cutter 11 tends to move the dust particles at the cutting position to both sides when it retracts, the dust particles are released in two stages, one on the left and one on the right side of the cutter 11, and the dust removal effect of the dust collection box 2 of the device is statistically analyzed.

[0059] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0061] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0062] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0063] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A dust removal device for a winding cutter, configured between a first guide roller and a second guide roller, wherein foil moving along a first conveying direction is placed on the first and second guide rollers, the first conveying direction being the direction of conveying from the first guide roller to the second guide roller, characterized in that, include: A cutting assembly for cutting foil, the cutting assembly including a cutting blade disposed between a first guide roller and a second guide roller, and rotatably connected to the second guide roller; The blade of the cutter is positioned with its cutting edge facing outwards; The dust collector box includes a front-inclined dust inlet, a bottom-mounted dust outlet, and a guide back plate. The dust collector box is fitted over the outside of the cutter. The dust outlet faces outward through the dust inlet. The cutter is located at the center of the dust collector box cavity. The top of the dust inlet is close to the top of the first roller, and the bottom of the dust inlet is close to the second roller. The cutter divides the dust inlet into a first air inlet and a second air inlet. as well as A negative pressure mechanism, connected to the dust outlet, is used to remove dust particles from the dust collection box.

2. The dust removal device for the winding cutter according to claim 1, characterized in that, The angle between the extension line of the dust inlet in the width direction and the horizontal direction is greater than 90 degrees.

3. The dust removal device for the winding cutter according to claim 2, characterized in that, The guide back plate is provided with a bend structure, which is adapted to the shape of the cutter so that an air duct is formed between the guide back plate and the cutter.

4. The dust removal device for the winding cutter according to claim 3, characterized in that, The top height of the guide back plate is greater than the height of the blade when the cutter is in its initial state.

5. The dust removal device for the winding cutter according to claim 4, characterized in that, The guide back plate has a bent portion at the edge near the dust inlet, the bent portion is bent at an angle toward the cutter, and the bent portion and the cutter form the first air inlet.

6. The dust removal device for the winding cutter according to claim 1, characterized in that, The dust collector box also includes a front baffle, which is inclined outward away from the dust collector box, and the top of the front baffle is lower than the horizontal plane where the axis of the second roller is located.

7. The dust removal device for the winding cutter according to claim 6, characterized in that, The cutter assembly also includes a fixing plate, the bottom of which is higher than the horizontal plane where the axis of the second roller is located, and forms the second air inlet between the fixing plate and the top of the front baffle.

8. The dust removal device for the winding cutter according to claim 7, characterized in that, When the cutter cuts the foil, the bottom of the fixing plate is located in the middle of the dust inlet formed by the top of the dust collection box and the top of the front baffle.

9. The dust removal device for the winding cutter according to any one of claims 1-8, characterized in that, The negative pressure mechanism includes a negative pressure pipe, and the dust outlet is located at the end of the negative pressure pipe; the guide back plate is aligned with one side of the negative pressure pipe.

10. The dust removal device for the winding cutter according to any one of claims 1-8, characterized in that, The width of the dust inlet on the horizontal plane is greater than the width of the dust outlet on the horizontal plane.

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