Carding machine and airflow balancing device suitable for the triangular area of the cylinder doffer of a carding machine

Abstract

The utility model discloses a cotton carding machine and airflow balance device suitable for cotton carding machine tin forest triangle area relates to cotton carding machine technical field, airflow balance device suitable for cotton carding machine tin forest triangle area, include: suction device, it is located tin forest triangle area's near the one side of doff, and suction device is used for tin forest triangle area's vortex of drawing away, suction connection device, one end and one end of suction device are connected, and the other end of suction connection device and host computer dust filter system are connected, the air supply board, it is located the other end of suction device, and the air supply board is used for the air flow of suction device according to the working condition adjustment draws in. The device can improve the structure of the lower cover plate before the tin forest in the tin forest triangle area position, eliminate the airflow vortex of the tin forest triangle area, reduce the fiber transfer interference and impurity residue, improve the yarn quality.

Description

Technical Field

[0001] This utility model relates to the field of carding machine technology, and more specifically, to an airflow balancing device suitable for the cylinder delta region of a carding machine. Furthermore, it also relates to a carding machine including the aforementioned airflow balancing device suitable for the cylinder delta region of a carding machine. Background Technology

[0002] The main components of a carding machine include the feeding unit, licker-in roller unit, cylinder unit, doffer unit, stripping unit, and frame. A schematic diagram of the cylinder, doffer, and lower front cover plate of a common carding machine is shown below. Figure 1 As shown, during operation, the carding machine's licker-in roller rotates counterclockwise at high speed (working speed from 750 r / min to 1200 r / min), the cylinder rotates clockwise (working speed from 350 r / min to 550 r / min), and the doffer rotates counterclockwise (working speed from 40 r / min to 90 r / min). The working process of a carding machine includes: the cotton layer (or fiber layer) is output from the feed box and enters the licker-in roller through the feed roller. After the licker-in roller rotates and completes the initial carding and impurity removal, it is grabbed by the cylinder and enters the cylinder working area. In the cylinder area, it is further carded into single fibers. Among them, short fibers, impurities, dust and cotton knots are removed. After passing the minimum distance point with the doffer, the fibers on the surface of the cylinder are stripped by the doffer card cloth and aggregated into a fiber web on the surface of the doffer card cloth. Then, they are stripped by the stripping roller, output and aggregated into sliver (or cotton sliver), which is arranged in a regular manner in the sliver can, completing the production process from a messy and disordered cotton layer containing a lot of defects to a cotton sliver with a neat shape and uniform thickness.

[0003] When the carding machine is operating normally, the cylinder rotates at high speed clockwise, while the doffer rotates at low speed counterclockwise. The boundary layer airflow of the doffer and cylinder creates airflow opposition at the cylinder-doffer triangle area, forming an airflow vortex that hinders the transfer of the cotton layer (or fiber layer) between the cylinder and doffer. In existing technology, a lower front cover plate is usually installed at the cylinder-doffer triangle area, with one side of the lower front cover plate attached to the cylinder surface and the other side attached to the doffer surface. The fibers on the cylinder surface are stripped by the doffer card cloth and condense into a fiber web on the doffer card cloth surface. Due to the influence of the boundary layer airflow of the doffer, a small amount of short fibers and impurities adhere to the surface of the doffer card cloth. The doffer cover plate covers the doffer surface, forming a sealed cavity, preventing the short fibers and dust adhering to the doffer surface from being discharged, and thus continuing to enter the fiber web, resulting in yarn defects.

[0004] In summary, how to structurally improve the lower front cover plate of the cylinder in the cylinder delta region to eliminate airflow vortices, reduce fiber transfer interference and impurity residue, and improve yarn quality is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide an airflow balancing device suitable for the cylinder doffer triangle area of ​​a carding machine, which can improve the structure of the lower front cover plate of the cylinder in the cylinder doffer triangle area, eliminate airflow vortices in the cylinder doffer triangle area, reduce fiber transfer interference and impurity residue, and improve yarn quality.

[0006] Another objective of this invention is to provide a carding machine that includes the aforementioned airflow balancing device suitable for the Schlindorf triangle zone of a carding machine.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An airflow balancing device for the cylinder delta zone of a carding machine, comprising:

[0009] A suction device is located on the side of the Syringdorf triangle area closer to the doffer, and the suction device is used to remove the vortex in the Syringdorf triangle area.

[0010] A suction connection device, one end of which is connected to one end of the suction device, and the other end of the suction connection device is connected to the main unit dust filtration system;

[0011] An air supply plate is located at the other end of the suction device. The air supply plate is used to adjust the air flow rate drawn in by the suction device according to the working conditions.

[0012] In one embodiment, the suction device has an airflow balancing port on the side near the cylinder.

[0013] In one embodiment, the airflow balancing port includes an elongated hole.

[0014] In one embodiment, the suction connection device includes a suction pipe.

[0015] In one embodiment, one end of the suction pipe connected to the main dust filtration system is circular, and the other end of the suction pipe connected to the suction device is irregularly shaped. The irregularly shaped structure is used to avoid the structure between the cylinder and the doffer.

[0016] In one embodiment, the ventilation cavity of the suction device is configured in conjunction with the doffer.

[0017] In one embodiment, both the suction connection device and the air supply plate are detachably connected to the suction device.

[0018] In one embodiment, the air supply plate is rotatably mounted on the air suction device via an adjusting screw, and the air suction device is provided with at least one limiting member for restricting the position of the air supply plate.

[0019] In one embodiment, the air supply plate comprises a teardrop-shaped flat plate.

[0020] A carding machine, comprising the airflow balancing device described in any of the preceding claims for use in the carding machine's Schlindorf triangle area.

[0021] When using the airflow balancing device for the cylinder doffer triangle area of ​​a carding machine provided by this utility model, the suction device can directly replace the existing cylinder front lower cover plate. This eliminates the need for significant adjustments to the overall machine layout, solves airflow interference at low cost, and significantly improves yarn quality, demonstrating strong practicality and industrial value. Furthermore, the suction device is located on the doffer side of the cylinder doffer triangle area, with one end connected to one end of the suction connection device, and the other end connected to the main machine's dust filtration system. The other end of the suction device is also equipped with a supplementary air plate.

[0022] During operation of the carding machine, the main dust filtration system draws in the vortex of the cylinder delta region through the suction connection device and the suction device. Impurities and residual fibers in the vortex can be removed by the main dust filtration system, preventing them from mixing into the cotton web. Moreover, the position of the supplementary air plate can be adjusted according to different working conditions, thereby adjusting the airflow rate drawn in by the suction device to maintain airflow balance.

[0023] This device removes vortices from the doffer triangle area, eliminating airflow interference and ensuring stable fiber transfer to the doffer. Furthermore, the main unit's dust filtration system removes impurities and residual fibers, preventing them from mixing into the yarn web and thus reducing yarn defects. Additionally, the position of the supplementary air baffle can be adjusted according to different operating conditions (e.g., adjusting the position based on rotation speed and fiber type) to flexibly regulate airflow balance and adapt to various working conditions.

[0024] In summary, the airflow balancing device for the cylinder doffer triangle area of ​​a carding machine provided by this utility model can improve the structure of the lower front cover plate of the cylinder in the cylinder doffer triangle area, eliminate airflow vortices in the cylinder doffer triangle area, reduce fiber transfer interference and impurity residue, and improve yarn quality.

[0025] In addition, this utility model also provides a carding machine including the above-mentioned airflow balancing device applicable to the schlindorf triangle area of ​​a carding machine. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0027] Figure 1 This is a structural diagram showing the positions of the cylinder, doffer, and the original cylinder front lower cover plate in the existing technology;

[0028] Figure 2 This is a schematic diagram of the airflow balancing device for the cylinder doffer triangle zone of a carding machine provided by this utility model.

[0029] Figure 3 This is a side view of the suction connection device;

[0030] Figure 4 This is a side sectional view of the suction device;

[0031] Figure 5 This is a side view of the assembly of the air supply plate and the air suction device.

[0032] Figures 1-5 middle:

[0033] 1 is the suction connection device, 11 is the circular structure, 12 is the irregular structure, 2 is the suction device, 21 is the airflow balance port, 3 is the air supply plate, 31 is the adjusting screw, 4 is the doffer, 5 is the cylinder, and 6 is the lower front cover of the cylinder. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] The core of this invention is to provide an airflow balancing device suitable for the cylinder doffer triangle area of ​​a carding machine. This device can structurally improve the lower front cover plate of the cylinder in the cylinder doffer triangle area, eliminating airflow vortices, reducing fiber transfer interference and impurity residue, and improving yarn quality. Another core aspect of this invention is to provide a carding machine that includes the aforementioned airflow balancing device for the cylinder doffer triangle area of ​​a carding machine.

[0036] Please refer to Figure 2 This specific embodiment provides an airflow balancing device suitable for the cylinder doffer triangle area of ​​a carding machine, including:

[0037] The suction device 2 is located on the side of the Schlindorf triangle area near the doffer 4. The suction device 2 is used to remove the vortex in the Schlindorf triangle area.

[0038] The suction connection device 1 is connected at one end to the suction device 2, and the other end of the suction connection device 1 is connected to the main unit dust filter system.

[0039] The air supply plate 3 is located at the other end of the suction device 2. The air supply plate is used to adjust the air flow rate drawn in by the suction device 2 according to the working conditions.

[0040] It should be noted that under normal operating conditions, the carding machine experiences airflow vortexes (i.e., eddies) in the cylinder doffer triangle area, which affects the transfer of the cotton web and causes yarn defects. This device can structurally improve the cylinder lower cover plate 6 in the cylinder doffer triangle area, eliminating airflow vortices, reducing fiber transfer interference and impurity residue, and improving yarn quality. Specifically, a suction device 2 (which replaces the existing cylinder lower cover plate 6) can be used as an air vent in the existing installation position of the original cylinder lower cover plate 6. An air supply plate 3 is installed at one end of the suction device 2, and a suction connection device 1 is installed at the other end. The suction connection device 1 connects to the main machine's dust filtration system to achieve the effects of air venting and impurity removal.

[0041] In practical applications, the shape, structure, material, and position of the suction device 2, the suction connection device 1, and the air supply plate 3 can be determined according to the actual situation and needs.

[0042] When using the airflow balancing device for the cylinder doffer triangle area of ​​a carding machine provided by this utility model, the suction device 2 can directly replace the existing cylinder front lower cover plate 6. This eliminates the need for significant adjustments to the overall machine layout, solves airflow interference at low cost, and significantly improves yarn quality, demonstrating strong practicality and industrial value. Furthermore, the suction device 2 is located on the side of the cylinder doffer triangle area closest to the doffer 4. One end of the suction device 2 is connected to one end of the suction connection device 1, and the other end of the suction connection device 1 is connected to the main machine's dust filtration system. The other end of the suction device 2 is equipped with a supplementary air plate 3.

[0043] When the carding machine is running, the main dust filtration system draws in the vortex of the cylinder delta region through the suction connection device 1 and the suction device 2. Impurities and residual fibers in the vortex can be removed by the main dust filtration system, preventing them from mixing into the cotton web. Moreover, the position of the supplementary air plate can be adjusted according to different working conditions, thereby adjusting the airflow rate drawn in by the suction device 2 to maintain airflow balance.

[0044] This device removes vortices from the doffer triangle area, eliminating airflow interference and ensuring stable fiber transfer to doffer 4. Furthermore, the main unit's dust filtration system removes impurities and residual fibers, preventing them from mixing into the yarn web and thus reducing yarn defects. Additionally, the position of the supplementary air baffle can be adjusted according to different operating conditions (e.g., adjusting the position based on rotation speed and fiber type) to flexibly regulate airflow balance and adapt to various working conditions.

[0045] In summary, the supplementary air plate 3 provided by this utility model is suitable for the airflow balancing device in the cylinder doffer triangle area of ​​a carding machine. It can improve the structure of the cylinder front lower cover plate 6 in the cylinder doffer triangle area, eliminate airflow vortices in the cylinder doffer triangle area, reduce fiber transfer interference and impurity residue, and improve yarn quality.

[0046] In one embodiment, the suction device 2 has an airflow balancing port on the side near the cylinder 5 to ensure the suction effect of the suction device 2 on the vortex.

[0047] In one embodiment, such as Figure 2 As shown, the airflow balancing port includes elongated holes. For example, multiple elongated holes can be spaced apart along the length of the suction device 2.

[0048] In one embodiment, the suction connection device 1 includes a suction pipe to transport the vortex and impurities drawn by the suction device 2 to the host dust filtration system.

[0049] In one embodiment, such as Figure 3 As shown, one end of the suction pipe connected to the main dust filter system is a circular structure 11, which directly transports the vortex and impurities sucked by the suction device 2 into the main dust filter system; the other end of the suction pipe connected to the suction device 2 is an irregular structure 12. The irregular structure 12 is used to avoid the structure between the cylinder 5 and the doffer 4, so as to ensure the connection effect between the suction pipe and the suction device 2 and avoid the structure between the cylinder 5 and the doffer 4 causing the suction pipe to be unable to transport airflow smoothly.

[0050] In one embodiment, such as Figure 4 As shown, the ventilation cavity of the suction device 2 is designed to work with the doffer 4. That is, the ventilation cavity replaces the existing cylinder front lower cover plate 6, and the ventilation cavity is located in the cylinder-doffer triangle area near the doffer 4. In other words, the shape of the ventilation cavity of the suction device 2 must ensure the ventilation volume requirement of the ventilation cavity, as well as meet the fitting relationship of the ventilation cavity on the doffer 4 and its own installation and fixing requirements.

[0051] It should be noted that the existing upper cover of the doffer 4 can be directly modified without significant changes to the overall machine layout. This solves airflow interference at a low cost, significantly improves yarn quality, and has strong practicality and industrial value. For example, the diameter of the air intake of the suction device 2 can be set to 65mm-75mm, the length of the ventilation cavity needs to be adapted to the width of the doffer 4, and an elongated hole with a length of 80mm-100mm can be made on the suction device 2.

[0052] In one embodiment, both the suction connection device 1 and the air supply plate 3 are detachably connected to the suction device 2. For example, the suction connection device 1 and the air supply plate 3 can be fixed to the suction device 2 by means of bolts.

[0053] In one embodiment, such as Figure 5 As shown, the air supply plate 3 is rotatably mounted on the air suction device 2 by adjusting screw 31, and the air suction device 2 is provided with at least one limiting member for limiting the position of the air supply plate 3.

[0054] It should be noted that the air supply plate 3 can be set as a flat plate structure that matches the air intake of the air suction device 2, so that the air supply plate 3 can completely cover the air intake. When it is necessary to adjust the air flow rate, the operator can rotate the air supply plate 3. The air supply plate 3 rotates around the adjusting screw 31 until the air supply plate 3 is rotated to the appropriate position. Then, tighten the adjusting screw 31 to fix the air supply plate 3.

[0055] Furthermore, in order to further improve the fixing effect of the air supply plate 3 and to make the air supply plate 3 fixed in different positions, fixing holes can be set on the edge of the air supply plate 3 and locking holes can be set at different positions of the air suction device 2. Then, when the air supply plate 3 is rotated to the desired position, the limiting member (such as a screw) is passed through the fixing hole and the locking hole and fixed, so that the air supply plate 3 can be effectively fixed in different positions by adjusting the screw 31 with the help of the limiting member.

[0056] The shape, structure, material, and number of the air supply plate 3, adjusting screw 31, and limiting components can be determined according to the actual situation and needs.

[0057] In one embodiment, such as Figure 5 As shown, the air supply plate 3 includes a teardrop-shaped flat plate. The tip of the teardrop-shaped flat plate can be placed at the top, and the top of the teardrop-shaped flat plate is fixed to the air intake of the air suction device 2 by adjusting screw 31.

[0058] In addition to the airflow balancing device for the Cylinder triangle area of ​​a carding machine as described above, this utility model also provides a carding machine that includes the airflow balancing device for the Cylinder triangle area of ​​a carding machine disclosed in the above embodiments. For the structure of other parts of the carding machine, please refer to the prior art, which will not be repeated here.

[0059] It should be noted that the main components of a carding machine include the feeding unit, licker-in roller unit, cylinder unit, doffer unit, stripping unit, and frame. The feeding unit evenly feeds in the cotton layer or fiber lap, ensuring a stable entry of raw material into the carding zone through pressure control. The licker-in roller unit performs initial carding and impurity removal; its surface serrations pierce the cotton layer, separating fiber bundles and removing impurities (such as broken seeds and short fibers). The cylinder unit performs deep carding, further removing fine impurities. The carding cloth configuration must balance piercing force and abrasion resistance, with the inlet and outlet spacing decreasing from large to small to enhance carding strength. The doffer unit aggregates the long fibers after carding by cylinder 5 into a fiber web; its slower speed ensures a uniform fiber layer. The stripping unit peels the fiber web from doffer 4 and conveys it to the sliver section. Some models use a three-roller or apron guide device to improve efficiency. The frame supports the core components, ensuring stability during high-speed operation. This device removes vortices from the doffer triangle area, eliminating airflow interference and ensuring stable fiber transfer to doffer 4. Furthermore, the main unit's dust filtration system removes impurities and residual fibers, preventing them from mixing into the yarn web and thus reducing yarn defects.

[0060] In addition, it should be noted that the orientation or positional relationship indicated by "top" and other terms in this application is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the purpose of simplifying the description and making it easier to understand, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0061] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. Any combination of all embodiments provided by this utility model is within the protection scope of this utility model and will not be elaborated upon here.

[0062] The carding machine and the airflow balancing device suitable for the cylinder delta region of the carding machine provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An airflow balancing device suitable for the cylinder doffer triangle zone of a carding machine, characterized in that, include: A suction device (2) is located on the side of the Schlindorf triangle area near the doffer (4), and the suction device (2) is used to remove the vortex in the Schlindorf triangle area; A suction connection device (1) is provided, one end of which is connected to one end of the suction device (2), and the other end of the suction connection device (1) is connected to the main dust filter system. The air supply plate (3) is located at the other end of the air suction device (2). The air supply plate is used to adjust the air flow rate drawn in by the air suction device (2) according to the working conditions.

2. The airflow balancing device for the cylinder doffer triangle zone of a carding machine according to claim 1, characterized in that, The suction device (2) has an airflow balance port (21) on the side near the cylinder (5).

3. The airflow balancing device for the cylinder doffer triangle zone of a carding machine according to claim 2, characterized in that, The airflow balancing port (21) includes an elongated hole.

4. The airflow balancing device for the cylinder doffer triangle zone of a carding machine according to claim 2, characterized in that, The suction connection device (1) includes a suction pipe.

5. The airflow balancing device for the cylinder doffer triangle zone of a carding machine according to claim 4, characterized in that, One end of the suction pipe connected to the main dust filter system is a circular structure (11), and the other end of the suction pipe connected to the suction device (2) is an irregular structure (12). The irregular structure (12) is used to avoid the structure between the cylinder (5) and the doffer (4).

6. The airflow balancing device for the cylinder doffer triangle area of ​​a carding machine according to any one of claims 1 to 5, characterized in that, The ventilation cavity of the suction device (2) is configured in conjunction with the doffer.

7. The airflow balancing device for the cylinder doffer triangle area of ​​a carding machine according to any one of claims 1 to 5, characterized in that, The suction connection device (1) and the air supply plate (3) are both detachably connected to the suction device (2).

8. The airflow balancing device for the cylinder doffer triangle zone of a carding machine according to claim 7, characterized in that, The air supply plate (3) is rotatably mounted on the air suction device (2) by adjusting screw (31), and the air suction device (2) is provided with at least one limiting member for limiting the position of the air supply plate (3).

9. The airflow balancing device for the cylinder doffer triangle zone of a carding machine according to claim 8, characterized in that, The air supply plate (3) includes a teardrop-shaped flat plate.

10. A carding machine, characterized in that, Includes the airflow balancing device for the cylinder delta region of a carding machine as described in any one of claims 1 to 9.

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