Stripping device and wire drawing equipment

Abstract

The utility model provides a stripping device and wire drawing equipment, and relates to the technical field of fiber multifilament preparation. The stripping device comprises a base, the base is provided with a first surface, and the base is provided with a multifilament channel penetrating through the axial direction; the sliding track is arranged on the first surface and surrounds the multifilament channel to form an annular track; a first driving member and a second driving member; the stripping assembly is driven by a first driving part to move on the sliding rail in a circumferential mode, a stripping part of the stripping assembly is used for being connected with a part to be stripped, and the stripping part can be driven by a second driving part to rotate around the center axis of the stripping part. According to the stripping device and the wire drawing equipment, by arranging the sliding rail and the first driving part, the stripping assembly can stably and circumferentially move on the annular rail, it is ensured that force applied to the raw adhesive tape to be stripped is evenly distributed, the problem of multifilament deformation caused by uneven local stress is effectively avoided, and therefore the multifilament ovality is reduced.

Description

Technical Field

[0001] This application relates to the field of fiber multifilament preparation technology, and in particular to a stripping device and a drawing device. Background Technology

[0002] Currently, the main problem facing fiber optic imaging components is the presence of fixed pattern noise such as spots, long dots, and grids in the products. Research shows that the ellipticity of the fiber multifilament is one of the key factors causing this pattern noise, and there is a direct proportional relationship between ellipticity and pattern noise—that is, the greater the ellipticity, the more significant the pattern noise. Therefore, continuous optimization is carried out in the multifilament production process to reduce the ellipticity of the multifilament and improve image quality.

[0003] In the process of multifilament preparation, the monofilament is first wrapped with raw rubber tape to stabilize the structure. However, in the subsequent drawing process, this raw rubber tape needs to be peeled off manually. This operation results in uneven peeling force around the monofilament, which increases the ellipticity of the multifilament and also reduces production efficiency.

[0004] Therefore, how to provide a peeling device and drawing equipment that can reduce the increase of multifilament ellipticity during the peeling process of raw rubber tape is an urgent problem to be solved. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides the following technical solutions:

[0006] The first aspect of this application provides a peeling device, comprising: a base having a first surface and a multifilament channel extending through the axial direction; a sliding track disposed on the first surface and surrounding the multifilament channel to form an annular track; a first driving member and a second driving member; and a peeling assembly that moves circumferentially on the sliding track by the first driving member, the peeling assembly having a peeling part for connecting to the workpiece to be peeled, and the peeling part being rotatable about its own central axis by the second driving member.

[0007] In some embodiments, the sliding track is a U-shaped track; the first driving member includes: a transmission belt surrounding the multifilament channel and the transmission trajectory surrounding it is the same shape as the sliding track, located inside the sliding track; a drive motor; and multiple transmission wheels disposed on the inner side of the transmission belt near the multifilament channel, with the outer periphery of the transmission wheels contacting the transmission belt; wherein the transmission belt is connected to the stripping assembly, and the transmission belt rotates circumferentially around the multifilament channel by the drive motor to drive the stripping assembly to slide relative to the sliding track.

[0008] In some embodiments, the turning angle between two adjacent sides of the sliding track is an arc angle, and the arc angle ranges from 30° to 60°.

[0009] In some embodiments, the inner diameter of the U-shaped transmission track enclosed by the transmission belt is larger than the inner diameter of the multifilament channel.

[0010] In some embodiments, the sliding surface of the sliding track is at a preset distance from the first surface.

[0011] In some embodiments, the circular track is a circular track.

[0012] In some embodiments, the rotation speed of the peeling section and the moving speed of the peeling assembly on the sliding track satisfy the following relationship: within one rotation of the peeling section, the moving distance of the peeling assembly on the sliding track is less than half the circumference of the part to be peeled.

[0013] In some embodiments, the stripping device further includes a support assembly disposed on a base having an annular support portion with an inner diameter smaller than the inner diameter of the multifilament channel, and the centers of the two portions being located at the same point.

[0014] In some embodiments, the peeling assembly includes: a slider slidably connected to a sliding track, the slider having a receiving cavity for accommodating a second driving member; and a connecting shaft, one end of which is connected to the driving end of the second driving member, and the other end of which is detachably connected to the peeling portion.

[0015] A second aspect of this application provides a wire drawing apparatus, including: a stripping device as described above.

[0016] Compared to existing technologies, the peeling device and drawing equipment provided in this application, by setting a sliding track and a first driving component, enable the peeling assembly to perform stable circumferential motion on the annular track. This ensures a uniform distribution of the force applied to the raw rubber tape to be peeled, effectively avoiding the multifilament deformation problem caused by uneven local force, thereby reducing the ellipticity of the multifilament. Simultaneously, the peeling part of the peeling assembly can rotate around its own central axis under the drive of the second driving component, using rotational torque to synchronously wrap the peeled raw rubber tape around the surface of the peeling part for dynamic storage. This composite motion mechanism results in an axisymmetric distribution of the peeling force field on the fiber surface, effectively suppressing asymmetric deformation of the multifilament during the peeling process, reducing multifilament deformation caused by excessive local force, and lowering the ellipticity. Attached Figure Description

[0017] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application are illustrated by way of example and not limitation, with the same or corresponding reference numerals denoteing the same or corresponding parts, wherein:

[0018] Figure 1 A schematic diagram of a three-dimensional structure of a peeling device is shown.

[0019] Figure 2 A schematic diagram of the peeling device is shown from below.

[0020] Figure 3 A schematic diagram of another stripping device is shown from below.

[0021] Explanation of icon numbers:

[0022] 1. Base; 11. First surface; 12. Second surface; 13. Multifilament channel; 2. Sliding rail; 3. Peeling assembly; 31. Sliding element; 32. Peeling part; 33. Connecting shaft; 4. Drive belt; 5. Transmission wheel; 6. Support assembly; 61. Annular support part. Detailed Implementation

[0023] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0024] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application pertains.

[0025] Fiber optic imaging elements are devices that transmit optical images by integrating flexible optical fibers into a bundle and utilizing the total internal reflection phenomenon of light within the fibers. Their fabrication process is complex, mainly comprising six stages: fabrication of fiber preforms, fiber drawing, fusion molding, thermal processing involving twisting or stretching, precision optical processing, and performance testing. The crucial fiber drawing stage is further subdivided into processes such as single-mode fiber (monofilament) fabrication and multimode fiber (multifilament) fabrication.

[0026] The inventors discovered that the main challenge currently facing fiber optic imaging elements is the presence of fixed pattern noise such as spots, long dots, and grids in the products. Research shows that the ellipticity of the fiber multifilament is directly proportional to this pattern noise; that is, the greater the ellipticity, the more pronounced the pattern noise. To improve this issue, continuous optimization measures have been implemented in the multifilament production process. Multifilament preparation first requires wrapping the monofilament with raw rubber tape to stabilize the structure. However, during the subsequent drawing process, this raw rubber tape must be manually peeled off by operators. This process can cause the multifilament to wobble, thus increasing its ellipticity. Furthermore, manual peeling is inefficient. These problems all negatively impact multifilament quality and production efficiency.

[0027] The first aspect of this application provides a peeling device, comprising: a base 1 having a first surface 11 and a multifilament channel 13 extending through the axial direction; a sliding track 2 disposed on the first surface 11 and surrounding the multifilament channel 13 to form an annular track; a first driving member and a second driving member; and a peeling assembly 3, which moves circumferentially on the sliding track 2 by being driven by the first driving member, wherein the peeling part 32 of the peeling assembly 3 is used to connect to the workpiece to be peeled, and the peeling part 32 is rotatable about its own central axis by being driven by the second driving member.

[0028] Specifically, such as Figures 1-2 As shown, the stripping device can be applied to fields including but not limited to the fabrication of fiber optic imaging elements. The base 1 of the device can be made of heat-resistant materials capable of withstanding high temperatures, such as special refractory alloy steel or ceramic matrix composites, to ensure the stability and service life of the device. The multifilament channel 13 can be located in the central region of the base 1 and extends axially through the base 1. Here, axial direction refers to the direction from the first surface 11 to the second surface 12 of the base 1. The shape of the multifilament channel 13 can be arbitrary, such as circular or square, and its size is larger than the diameter of the component to be stripped, so that the component can pass smoothly through the multifilament channel 13. A sliding track 2 is disposed on the first surface 11 and surrounds the multifilament channel 13 to form a ring track. Its shape can be arbitrary, such as square or circular. The sliding track 2 can be circular to match the radial cross-section of the fiber and ensure that the stripping assembly 3 can strip the raw rubber tape from the fiber surface with the same pressure and angle during circumferential movement, ensuring uniform stripping of the raw rubber tape. In addition, the circular track can reduce unnecessary friction and stress concentration points, helping to maintain the integrity of the multifilament structure.

[0029] The first driving component drives the peeling assembly 3 to move circumferentially along the sliding track 2. A servo motor can be selected as the drive source, which can provide precise speed control and position feedback to ensure uniform force distribution during the peeling process. The second driving component can be installed inside the peeling assembly 3 to drive the peeling section 32 to rotate around its own central axis. A small servo motor can be selected for the second driving component to achieve precise angle control, which helps to stably wind and store the raw rubber tape.

[0030] The sliding connection between the peeling assembly 3 and the sliding track 2 can be achieved in the following ways: Several rollers (e.g., 2 to 4) are installed at the bottom of the peeling assembly 3, and these rollers directly contact the sliding track 2 and roll along the track; or a slider is installed at the bottom of the peeling assembly 3, and the slider is embedded in a groove on the sliding track 2, achieving a sliding connection through the cooperation of the slider and the groove. The first driving component can be set on the first surface 11 of the base 1, near the outside or inside of the sliding track 2, and can be connected to the peeling assembly 3 by a synchronous belt, gear rack, or direct drive. The second driving component can be built into the frame structure of the peeling assembly 3 and directly connected to the connecting shaft 33 of the peeling part 32 via a coupling. The peeling part 32 is a key part for connecting the part to be peeled (raw rubber tape), and can be made of wear-resistant rubber or silicone material. It can be cylindrical in shape, and the surface can have fine raised textures to increase friction, making it easier to firmly grip and peel the raw rubber tape.

[0031] The peeling device provided in this application, by setting a sliding track 2 and a first driving member, enables the peeling assembly 3 to perform stable circumferential motion on the annular track, so that the force applied to the part to be peeled, i.e., the raw rubber tape, is evenly distributed, effectively avoiding the problem of multifilament deformation caused by uneven local force, thereby reducing the ellipticity of the multifilament. At the same time, the peeling part 32 of the peeling assembly 3 can rotate around its own central axis under the drive of the second driving member, and the peeled raw rubber tape is synchronously wrapped around the surface of the peeling part 32 to complete dynamic storage by using rotational torque. This composite motion mechanism makes the peeling force field axisymmetrically distributed on the fiber surface, effectively suppressing the asymmetric deformation of the multifilament during the peeling process, reducing the deformation of the multifilament caused by excessive local force, and reducing the ellipticity.

[0032] In some embodiments, the sliding track 2 is a U-shaped track; the first driving member includes: a transmission belt 4, which surrounds the multifilament channel 13 and whose transmission trajectory is the same as that of the sliding track 2, and is located inside the sliding track 2; a drive motor; and a plurality of transmission wheels 5, which are disposed on the inner side of the transmission belt 4 near the multifilament channel 13, and the outer periphery of the transmission wheels 5 contacts the transmission belt 4; wherein the transmission belt 4 is connected to the stripping assembly 3, and the transmission belt 4 rotates circumferentially around the multifilament channel 13 by the drive of the drive motor, so as to drive the stripping assembly 3 to slide relative to the sliding track 2.

[0033] Specifically, such as Figure 1As shown, the sliding track 2 can be configured in a U-shape. The first driving component may include a transmission belt 4, a drive motor, and transmission wheels 5. The transmission belt 4 surrounds the multifilament channel 13, and its trajectory shape is the same as that of the sliding track 2, forming a U-shaped closed loop. A certain gap is maintained between the transmission belt 4 and the sliding track 2 to ensure that the transmission belt 4 does not rub against the sliding track 2, while guiding the peeling assembly 3 to move along a predetermined path. A transmission wheel 5 is provided on the inner side of the transmission belt 4, which can drive the transmission belt 4 to rotate. At the same time, the transmission belt 4 and the peeling assembly 3 can be connected by welding or adhesive to drive the peeling assembly 3 to slide relative to the sliding track 2. The number of transmission wheels 5 can be 4, 6, etc. Transmission wheels 5 are provided at least at the four corners of the inner side of the transmission belt 4. The outer periphery of the transmission wheels 5 contacts the transmission belt 4. The four transmission wheels 5 are driven by a drive motor, and the four transmission wheels 5 have the same rotation speed and size to ensure that the transmission belt 4 can maintain the U-shaped rotation and keep the transmission belt 4 taut. When the drive motor starts, the transmission wheel 5 drives the transmission belt 4 to rotate circumferentially around the multifilament channel 13, thereby causing the peeling assembly 3 to make smooth circumferential motion along the sliding track 2. During this process, the peeling assembly 3 can apply uniform pressure to the surface of the multifilament, effectively peeling off the raw rubber tape.

[0034] In some embodiments, the peeling assembly 3 includes: a slider 31 slidably connected to the sliding track 2, the slider 31 having a receiving cavity for accommodating the second driving member; and a connecting shaft 33, one end of which is connected to the driving end of the second driving member, and the other end of which is detachably connected to the peeling part 32.

[0035] Specifically, such as Figure 1 As shown, the slider 31 can be a block structure, slidably connected to the sliding track 2 via a groove and a slider. The slider 31 has an internal cavity for accommodating a second driving component (such as a servo motor). The peeling section 32 is the part that directly contacts the material to be peeled (raw rubber tape), used to peel the raw rubber tape from the multifilament surface and wrap it around its own surface. One end of the connecting shaft 33 is connected to the driving end of the second driving component, and the other end is detachably connected to the peeling section 32, serving to transmit power. By setting the peeling assembly 3 as a modular structure including the slider 31, the peeling section 32, and the connecting shaft 33, the flexibility and maintainability of the device can be improved.

[0036] In some embodiments, the turning angle between two adjacent sides of the sliding track 2 is an arc angle, and the arc angle ranges from 30° to 60°.

[0037] Specifically, such as Figure 1As shown, the rounded angle allows the peeling assembly 3 to maintain a smoother trajectory when passing through corners. A 30° roundness is suitable for scenarios requiring compact setups, while a smaller rounded angle provides sufficient transition area within a limited space without affecting the overall layout. A 60° rounded angle further optimizes the smoothness of the peeling assembly 3's movement, making it suitable for high-speed operation or scenarios requiring extremely high uniformity of peeling force. Additionally, a larger rounded angle provides a larger contact area between the transmission belt 4 and the peeling assembly 3, reducing pressure per unit area and thus lowering frictional losses. The rounded angle effectively reduces stress concentration on the peeling assembly 3 at corners, preventing mechanical wear or jamming caused by sudden changes in direction, reducing impact forces from sharp turns, and thus lowering the risk of multifilament deformation.

[0038] In some embodiments, the inner diameter of the U-shaped transmission track enclosed by the transmission belt 4 is larger than the inner diameter of the multifilament channel 13.

[0039] Specifically, such as Figure 1 As shown, by increasing the inner diameter of the transmission belt 4, the space between the transmission belt 4 and the multifilament is ensured to be large enough, thereby preventing the fibers from contacting the transmission belt 4 when passing through the multifilament channel 13 during the peeling process of the raw rubber tape, and thus avoiding additional friction or pulling, ensuring the stability and reliability of the peeling process.

[0040] In some embodiments, the sliding surface of the sliding track 2 is at a preset distance from the first surface 11.

[0041] Specifically, such as Figure 1 As shown, by raising the sliding surface of the sliding track 2 to a certain distance, the path length of the multifilament from entering the channel to completing the peeling can be extended. The preset distance can be any size, such as 10mm, 20mm, 50mm, etc. This allows the raw rubber tape more time to be gradually peeled during the peeling process, avoiding deformation or incomplete peeling of the multifilament due to excessively rapid peeling, thereby reducing the risk of increased multifilament ellipticity.

[0042] In some embodiments, the rotation speed of the peeling part 32 and the moving speed of the peeling component 3 on the sliding track 2 satisfy the following relationship: within one rotation of the peeling part 32, the moving distance of the peeling component 3 on the sliding track 2 is less than half the circumference of the part to be peeled.

[0043] Specifically, during one revolution of the peeling section 32, the peeling component 3 travels less than half the circumference of the part to be peeled along the track. If the peeling component 3 moves too fast, the peeling section 32 may not be able to effectively grasp and peel off the raw rubber tape, resulting in tape accumulation or incomplete peeling. If the peeling section 32 rotates at a constant speed, and the peeling component 3 moves too slowly, the raw rubber tape may become overly wrapped around the peeling section 32, leading to accumulation or knotting. By controlling the relationship between the rotation period of the peeling section 32 and the moving speed of the peeling component 3, it can be ensured that the raw rubber tape is peeled off gradually and evenly at each position. This avoids the problem of raw rubber tape breakage or incomplete peeling caused by rapid tearing, while ensuring the continuity and smoothness of the peeling action.

[0044] In some embodiments, the stripping device further includes a support assembly 6 disposed on the base 1, having an annular support portion 61 with an inner diameter smaller than the inner diameter of the multifilament channel 13, and the centers of the two portions being located at the same point.

[0045] Specifically, such as Figure 3 As shown, by providing support component 6, additional support can be provided for the multifilament, preventing it from shifting or wobbling when entering or leaving the multifilament channel 13, and ensuring its stable linear movement throughout the peeling process. Support component 6 can be mounted on base 1 with bolts or other fasteners to ensure its stable position. Support component 6 can be positioned near the inlet or outlet of multifilament channel 13, depending on actual needs. Alternatively, one support component 6 can be provided on each of the first surface 11 and the second surface 12 of multifilament channel 13 to provide all-around support. The inner diameter of the annular support portion 61 can be larger than the diameter of the multifilament but smaller than the inner diameter of the multifilament channel 13 to provide sufficient support without hindering the smooth passage of the multifilament. The inner ring of the annular support portion 61 can be of any shape, such as square or circular. The size of the inner ring can be set according to actual needs; for example, if the multifilament diameter is 26mm and the inner diameter of the multifilament channel 13 is 40mm, then the inner diameter of the annular support portion 61 can be selected as 27mm. In addition, to reduce friction and protect the surface of the multifilament, the annular support 61 is usually made of a material with a low coefficient of friction, such as polytetrafluoroethylene (PTFE) or ceramic-coated metal.

[0046] A second aspect of this application provides a wire drawing apparatus, including: a stripping device as described above.

[0047] The fiber drawing equipment provided in this application includes a stripping device, which can be an optical fiber drawing tower, a multimode optical fiber drawing machine, etc. By setting a sliding track 2 and a first driving component, the stripping assembly 3 can perform stable circumferential motion on the annular track, ensuring that the force applied to the raw rubber tape to be stripped is evenly distributed, effectively avoiding the problem of multifilament deformation caused by uneven local force, thereby reducing the ellipticity of the multifilament. At the same time, the stripping part 32 of the stripping assembly 3 can rotate around its own central axis under the drive of the second driving component, and the stripped raw rubber tape is synchronously wrapped around the surface of the stripping part 32 to complete dynamic storage using rotational torque. This composite motion mechanism makes the stripping force field axisymmetrically distributed on the fiber surface, effectively suppressing the asymmetric deformation of the multifilament during the stripping process, reducing the deformation of the multifilament caused by excessive local force, and reducing the ellipticity.

[0048] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure 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, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0049] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0050] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.

[0051] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0052] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A peeling device, characterized in that, include: A base having a first surface, and the base having a multifilament channel extending through the axial direction; A sliding track is disposed on the first surface and surrounds the multifilament channel to form a ring track; First drive unit and second drive unit; The peeling assembly is driven by the first driving member to move circumferentially on the sliding track. The peeling assembly is provided with a peeling part for connecting the part to be peeled, and the peeling part can rotate around its own central axis by the drive of the second driving member.

2. The stripping device according to claim 1, characterized in that, The sliding track is a U-shaped track; The first driving element includes: A transmission belt is arranged around the multifilament channel, and the transmission trajectory it encloses has the same shape as the sliding track, and is located inside the sliding track; Drive motor; A plurality of the conveyor wheels are disposed on the inner side of the transmission belt near the multifilament channel, and the outer periphery of the conveyor wheels is in contact with the transmission belt; The transmission belt is connected to the stripping assembly, and the transmission belt rotates circumferentially around the multifilament channel by the drive motor, so as to drive the stripping assembly to slide relative to the sliding track.

3. The stripping device according to claim 2, characterized in that, The angle between two adjacent sides of the sliding track is an arc angle, and the arc angle ranges from 30° to 60°.

4. The stripping device according to claim 2, characterized in that, The inner diameter of the U-shaped transmission track enclosed by the transmission belt is larger than the inner diameter of the multifilament channel.

5. The stripping device according to claim 1, characterized in that, The sliding surface of the sliding track is at a preset distance from the first surface.

6. The stripping device according to claim 1, characterized in that, The circular track is a ring track.

7. The stripping device according to claim 1, characterized in that, The rotational speed of the peeling section and the moving speed of the peeling assembly on the sliding track satisfy the following relationship: within one rotation of the peeling section, the moving distance of the peeling assembly on the sliding track is less than half the circumference of the part to be peeled.

8. The stripping device according to claim 1, characterized in that, Also includes: A support assembly is disposed on the base, having an annular support portion with an inner diameter smaller than the inner diameter of the multifilament channel, and the centers of the two are located at the same point.

9. The stripping device according to claim 1, characterized in that, The stripping assembly includes: A sliding member is slidably connected to the sliding track, and the sliding member is provided with a receiving cavity for accommodating the second driving member; The connecting shaft has one end connected to the driving end of the second driving member and the other end detachably connected to the peeling part.

10. A wire drawing device, characterized in that, include: The stripping device as described in any one of claims 1-9.

Images