Continuous coiling device for hollow thin-wall melt-blown filter element

Abstract

The utility model discloses a continuous winding device for a hollow thin-wall melt-blown filter element, which comprises a receiving roller and a spinning device arranged on one radial side of the receiving roller, one end of the receiving roller is connected with a first driving motor, and the other end of the receiving roller is provided with a filter element winding pipe used for winding the processed hollow thin-wall melt-blown filter element. The axis of the filter element winding pipe intersects and is perpendicular to the axis of the receiving roller, a winding motor is coaxially arranged on the inner circumference of the filter element winding pipe, two shaft core fixing rods of the winding motor are connected to the inner wall of the same positioning circular ring, the axis of the winding motor penetrates through the circle center of the positioning circular ring, and the positioning circular ring is further connected with a second driving motor; the axis of the positioning circular ring is parallel to the rotating axis of the second driving motor, and a transmission mechanism is further arranged between the positioning circular ring and the second driving motor. According to the scheme, spinning and winding synchronization of the hollow thin-wall melt-blown filter element is achieved, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of melt-blown filter core processing, in particular to a continuous winding device for a hollow thin-wall melt-blown filter core. Background Art

[0002] Meltblown filter elements are tubular filter elements made from non-toxic and odorless polypropylene particles through a process of heating, melting, spinning, drawing, and forming. In practical applications, meltblown filter elements, especially thin-walled ones, can be used as filter bags to store functional filter media, such as carbon powder, preventing the functional filter media from falling into the liquid while slowly releasing the active ingredients within. Furthermore, these thin-walled, hollow meltblown filter elements can also serve as the inner and outer filter layers of carbon rods. Existing meltblown filter element processing devices, such as the external pressure extrusion device disclosed in utility model patent CN201736444U, are typically used to process meltblown filter rods, assist in the extrusion of the meltblown filter rods, and perform post-extrusion cutting. However, for these hollow, thin-walled meltblown filter elements, especially those with extremely thin walls of approximately 0.10 mm to 1 mm, there is no processing device capable of both meltblowing and simultaneous winding. Utility Model Content

[0003] Therefore, in order to solve the above problems, the utility model provides a continuous winding device for a hollow thin-wall melt-blown filter element.

[0004] The utility model is realized through the following technical solutions:

[0005] A continuous winding device for a hollow, thin-walled meltblown filter element comprises a receiving roller and a spinning device disposed radially to one side of the receiving roller. One end of the receiving roller is connected to a first drive motor, and the other end is provided with a filter element reel for reeling the processed hollow, thin-walled meltblown filter element. The filter element reel intersects and is perpendicular to the axis of the receiving roller. A reel motor is coaxially disposed on the inner circumference of the filter element reel. The reel motor is an external rotor motor. Shaft core fixing rods are coaxially disposed at each end of the reel motor. The two shaft core fixing rods are respectively connected to the inner wall of the same positioning ring. Screw holes are provided on the shafts at both ends of the fixing rods. Screw holes are provided in the gear recesses of the positioning ring. Countersunk screws are used to connect the positioning ring and the fixing rods. The axis of the reel motor passes through the center of the positioning ring. The positioning ring is also connected to a second drive motor, and the axis of the positioning ring is parallel to the rotational axis of the second drive motor. A transmission mechanism is also provided between the positioning ring and the second drive motor.

[0006] Preferably, the transmission mechanism includes a belt gear arranged around the outer circumference of the positioning ring, and a synchronous motor gear meshing with the belt gear, and the synchronous motor gear is coaxially connected to the output shaft of the second drive motor.

[0007] Preferably, a synchronous motor gear and two driven gears are arranged at equal angles on the outer periphery of the belt gear, and the synchronous motor gear and the two driven gears have the same module and speed ratio.

[0008] Preferably, the transmission mechanism includes four positioning rods connected at equal angles to one end of the positioning ring, the positioning rods are parallel to the axis of the positioning ring, and the other ends of the four positioning rods are commonly connected to a cross connecting frame, and the plane of the cross connecting frame is perpendicular to the output shaft of the second drive motor.

[0009] Preferably, the spinning device comprises a spinning die head arranged on one side of the receiving roller, and the spinning die head has multiple groups of spinning holes arranged on the side facing the receiving roller.

[0010] Preferably, the receiving roller is a tapered roller with a taper of 3°-20°, and the end with a smaller diameter is arranged toward the filter element winding tube.

[0011] Preferably, the winding motor is a remote-controlled micro motor with a built-in energy storage battery.

[0012] The beneficial effects of the technical solution of this utility model are mainly reflected in:

[0013] 1. A filter element take-up tube is provided in front of the output end of the receiving roller, wherein the revolution speed and revolution direction of the filter element take-up tube are the same as the speed and rotation direction of the receiving roller, thereby ensuring the relative position of the two. While the filter element take-up tube is revolving, it is also driven by the winding motor to realize synchronous rotation, so that the hollow thin-walled melt-blown filter element after processing can be automatically wound on the outer periphery of the filter element take-up tube, realizing the synchronous spinning and winding of the hollow thin-walled melt-blown filter element, and improving the processing efficiency.

[0014] 2. As the winding package becomes larger and tighter, the winding motor adopts program control to gradually reduce the speed.

[0015] 3. The positioning ring used to help the filter element take-up tube to achieve orbital rotation can be connected to the second drive motor using different transmission mechanisms. In Example 1, the stability of the rotation of the positioning ring is achieved by three gears set at equal angles. In Example 2, the stability of the rotation of the positioning ring can be achieved by four positioning rods set at equal angles combined with a cross connecting frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 1. It is a schematic diagram of the working state of the first embodiment of the continuous winding device of the hollow thin-wall melt-blown filter element;

[0017] Figure 2 This is a schematic diagram of the structure of the filter element take-up tube, take-up motor, positioning ring and transmission device in Example 1;

[0018] Figure 3 This is a schematic diagram of the working state of the second embodiment of the continuous winding device for the hollow thin-walled melt-blown filter element;

[0019] Figure 4 It is a structural diagram of the filter element take-up tube, take-up motor, positioning ring and transmission device in Example 2. DETAILED DESCRIPTION

[0020] To more clearly and in detail illustrate the objectives, advantages, and features of the present invention, the following non-limiting description of preferred embodiments is provided for illustration and explanation. This embodiment is merely a typical example of the application of the present invention's technical solution. Any technical solution formed by equivalent substitution or equivalent transformation falls within the scope of protection claimed by the present invention.

[0021] It is also stated that in the description of the scheme, it should be noted that the terms "center", "up", "down", "left", "right", "front", "back", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] Furthermore, the terms "first" and "second" in this solution are used for descriptive purposes only and should not be construed as indicating or implying a ranking of importance or implicitly specifying the number of technical features shown. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features. In this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0023] The utility model discloses a continuous winding device for a hollow thin-wall melt-blown filter element, such as Figure 1 、 Figure 3 As shown, it includes a receiving roller 2 and a spinneret 1 arranged on a radial side of the receiving roller 2. In some embodiments, the spinneret 1 includes a spinneret die head arranged on one side of the receiving roller 2, and the spinneret die head has multiple groups of spinneret holes arranged toward one side of the receiving roller 2, so that the spinneret holes are sprayed toward the surface of the receiving roller 2, and as the receiving roller 2 rotates, a hollow thin-walled melt-blown filter element 4 is formed on the outer peripheral surface of the receiving roller 2, wherein the thickness of the hollow thin-walled melt-blown filter element 4 can be adjusted by controlling the density of the spinneret holes and the rotation speed of the receiving roller 2, which will not be elaborated here.

[0024] like Figure 1 、 Figure 3 As shown, one end of the receiving roller 2 is connected to the first drive motor 3, and the other end is provided with a filter element winding tube 7 for winding the hollow thin-walled melt-blown filter element 4 after processing. In one embodiment, the receiving roller 2 is a conical roller with a taper of 3°-20°, and the end with a smaller diameter (that is, the output end of the receiving roller 2) is arranged toward the filter element winding tube 7, so as to facilitate pulling the processed hollow thin-walled melt-blown filter element 4 out from the receiving roller 2. Specifically, in actual processing, a section of hollow thin-walled melt-blown filter element 4 is first processed by the spinning device 1 and the receiving roller 2, and then the processed hollow thin-walled melt-blown filter element 4 is pulled to the outer periphery of the filter element winding tube 7, and then the hollow thin-walled melt-blown filter element 4 can be automatically wound by the self-rotation of the filter element winding tube 7.

[0025] like Figure 2 、 Figure 4 As shown, the filter element winding tube 7 intersects and is perpendicular to the axis of the receiving roller 2, thereby ensuring that the hollow thin-walled melt-blown filter element 4 formed along the surface of the receiving roller is stretched to the outer periphery of the filter element winding tube 7, and the processed hollow thin-walled melt-blown filter element 4 is continuously wound around the outer periphery of the filter element winding tube 7 as the filter element winding tube 7 rotates; in a preferred embodiment, a cooling device (not shown in the figure) can also be provided between the receiving roller 2 and the filter element winding tube 7, such as a cold air device or a spray cooling device, etc. The cooling device can spray or blow the cooling medium onto the surface of the processed hollow thin-walled melt-blown filter element 4, thereby accelerating the cooling of the hollow thin-walled melt-blown filter element 4 between the receiving roller 2 and the filter element winding tube 7. The above-mentioned cooling device can refer to the existing technology and will not be described here.

[0026] like Figures 1-4 As shown, a winding motor 5 is coaxially arranged on the inner circumference of the filter element winding tube 7, and the winding motor 5 is an outer rotor motor. The inner circumference of the filter element winding tube 7 is connected to the outer rotor of the winding motor 5, or the filter element winding tube 7 is sleeved on the outer shell of the winding motor 5, and end covers are provided at both ends of the filter element winding tube 7. The end covers (not shown in the figure) are pressed against the outer shell of the motor through nuts. After full winding, the end covers are loosened and the wound hollow thin-walled melt-blown filter element 4 is removed, thereby ensuring that when the rotor of the winding motor 5 rotates, the filter element winding tube 7 also rotates synchronously, thereby realizing the self-rotation of the filter element winding tube 7 and completing the winding of the hollow thin-walled melt-blown filter element 4; in a preferred embodiment, the filter element winding tube 7 adopts a paper filter element winding tube to reduce its weight.

[0027] like Figures 1-4As shown, shaft core fixing rods 6 are coaxially arranged at both ends of the winding motor 5, and the two shaft core fixing rods 6 are respectively connected to the inner wall of the same positioning ring 12, and the axis of the winding motor 5 passes through the center of the positioning ring 12. The positioning ring 12 is also connected to a second drive motor 10 and is driven to rotate by the second drive motor 10. The axis of the positioning ring 12 is parallel to the rotation axis of the second drive motor 10, thereby ensuring that the positioning ring 12 and the second drive motor 10 have the same rotation direction, wherein the first drive motor 3 and the second drive motor 10 have the same speed ratio and the same rotation direction, thereby ensuring that the receiving roller 2 and the positioning ring 12 rotate at the same speed ratio.

[0028] In one embodiment, the winding motor 5 preferably adopts a remote-controlled micro motor with a built-in energy storage battery to avoid the external wires of the motor interfering with the compound movement of the device (the second drive motor 10 and the winding motor 5 have different rotation directions). Since the hollow thin-walled melt-blown filter element 4 has an extremely thin wall thickness (usually 0.10mm-1mm), is lightweight and has a small winding tension, the motor consumes very little power and the battery power is sufficient to last for more than 24 hours; in addition, the speed of the motor is controlled by an external remote control, which facilitates the change of the winding speed from high to low and the PLC speed setting. This is a prior art and will not be elaborated on.

[0029] A transmission mechanism is further provided between the positioning ring 12 and the second drive motor 10. The transmission mechanism can be provided in various forms and structures, including at least the following two embodiments:

[0030] Example 1:

[0031] like Figure 1 、 Figure 2 As shown, the transmission mechanism includes a belt gear 8 arranged around the outer periphery of the positioning ring 12, and a synchronous motor gear 9 meshing with the belt gear 8, the synchronous motor gear 9 is coaxially connected to the output shaft of the second drive motor 10, and is driven to rotate by the second drive motor 10; the outer periphery of the belt gear 8 is arranged with synchronous motor gears 9 and two driven gears 11 at equal angles, and the two driven gears 11 are rotatably arranged on both sides of the belt gear 8, thereby ensuring the stability of the rotation of the positioning ring 12, the axes of the driven gears 11 and the synchronous motor gear 9 are parallel to the axis of the positioning ring 12, and the driven gears rotate with the belt gear 8, the driven gears 11 and the synchronous motor gear 9 have the same module and speed ratio, the rotation speed of the positioning ring 12 is the same as the rotation speed of the receiving roller 2, ensuring that the orbital angle of the filter element take-up tube 7 and the rotation angle of the receiving roller 2 are always the same.

[0032] Example 2:

[0033] like Figure 3 、 Figure 4 As shown, the transmission mechanism includes four positioning rods 14 connected at equal angles to one end of the positioning ring 12, the positioning rods 14 are parallel to the axis of the positioning ring 12, and the other ends of the four positioning rods 14 are commonly connected to a cross connecting frame 13, wherein the four positioning rods 14 are consistent in shape and size, and the cross connecting frame 13 is coaxially connected to the output shaft of the second drive motor 10. Specifically, the cross connecting frame 13 is fixed to the end of the output shaft of the second drive motor 10 by a positioning bolt 15, and is driven by the second drive motor 10 to drive the positioning ring 12 and the filter element winding tube 7 to rotate synchronously.

[0034] There are many implementation methods for the present utility model, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the present utility model.

Claims

1. A continuous winding device for a hollow thin-walled melt-blown filter element, comprising a receiving roller and a spinneret arranged on a radial side of the receiving roller, characterized in that: One end of the receiving roller is connected to the first drive motor, and the other end is provided with a filter element winding tube for winding the hollow thin-walled melt-blown filter element after processing. The filter element winding tube intersects and is perpendicular to the axis of the receiving roller, and a winding motor is coaxially arranged on the inner periphery of the filter element winding tube. The winding motor is an outer rotor motor, and shaft core fixing rods are coaxially arranged at both ends of the winding motor. The two shaft core fixing rods are respectively connected to the inner wall of the same positioning ring, and the axis of the winding motor passes through the center of the positioning ring. The positioning ring is also connected to a second drive motor, and the axis of the positioning ring is parallel to the rotation axis of the second drive motor. A transmission mechanism is also provided between the positioning ring and the second drive motor.

2. The continuous winding device for the hollow thin-wall melt-blown filter element according to claim 1, characterized in that: The transmission mechanism includes a belt gear arranged around the outer circumference of the positioning ring, and a synchronous motor gear meshing with the belt gear, and the synchronous motor gear is coaxially connected to the output shaft of the second drive motor.

3. The continuous winding device for the hollow thin-wall melt-blown filter element according to claim 2, characterized in that: A synchronous motor gear and two driven gears are arranged at equal angles on the outer periphery of the belt gear. The synchronous motor gear and the two driven gears have the same module and speed ratio.

4. The continuous winding device for the hollow thin-wall melt-blown filter element according to claim 1, characterized in that: The transmission mechanism includes four positioning rods connected at equal angles to one end of the positioning ring, the positioning rods are parallel to the axis of the positioning ring, and the other ends of the four positioning rods are commonly connected to a cross connecting frame, and the cross connecting frame is parallel to the output axis of the second drive motor.

5. The continuous winding device for the hollow thin-wall melt-blown filter element according to claim 1, characterized in that: The spinning device comprises a spinning die head arranged on one side of the receiving roller, wherein the spinning die head has multiple groups of spinning holes arranged on the side facing the receiving roller.

6. The continuous winding device for the hollow thin-wall melt-blown filter element according to claim 1, characterized in that: The receiving roller is a tapered roller with a taper of 3°-20°, and the end with a smaller diameter is arranged toward the filter element winding tube.

7. The continuous winding device for the hollow thin-wall melt-blown filter element according to claim 1, characterized in that: The winding motor is a remote-controlled micro motor with a built-in energy storage battery.

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