Self-locking flexible compression adjusting device with wrapping and deviation prevention

Abstract

The present application relates to cable wrapping technology field, disclose a kind of self-locking type flexible compression adjusting device of wrapping deviation prevention, including mounting seat, radial adjusting support, partition flexible pressing plate, deformation contact layer, pressure detection component, differential self-locking mechanism and control module.Partition flexible pressing plate forms middle compression zone and two side edge compression zones along the width direction of wrapping belt, middle compression zone provides basic compression, and edge compression zone forms oblique guide friction contact towards the center of wrapping belt through deformation contact layer when overpressure.Control module drives differential self-locking mechanism according to pressure detection component signal, so that overpressure side retreats, relative side compensates and feeds and self-locks to keep, to inhibit wrapping belt deviation, improve lap stability and wrapping quality.

Description

Technical Field

[0001] This invention relates to the field of cable wrapping technology, and in particular to a self-locking flexible clamping adjustment device for preventing cable wrapping deviation. Background Technology

[0002] Cable wrapping machines are essential equipment used in cable production to wrap cable cores with mica tape, copper tape, aluminum tape, polyester tape, or other similar materials. During production, the wrapping tape continuously wraps around the surface of the cable core under the combined action of the rotating wrapping head and the axial traction of the cable core, thus forming an insulation layer, shielding layer, or protective layer.

[0003] When the wrapping tape enters the contact area on the surface of the cable core, its operation is easily affected by factors such as wrapping tension fluctuations, guide angle changes, slight oscillations of the cable core, and uneven force on the clamping mechanism, resulting in lateral offset along the width of the wrapping tape. When the wrapping tape offsets to one side, the offset edge usually bears greater clamping force and friction, leading to problems such as edge lifting, local wrinkles, changes in overlap rate, and misalignment of the wrapping layers, affecting product quality.

[0004] Existing wrapping equipment commonly uses pressure rollers, elastic pressure plates, or rigid pressure blocks to tighten the wrapping tape. These structures primarily provide normal clamping force, which improves the adhesion stability between the wrapping tape and the cable core. However, when the wrapping tape deviates laterally, existing clamping structures often struggle to actively correct the deviation by utilizing the localized force changes that occur during the deviation. In some cases, the pressure on the deviated side may even increase further, exacerbating the deviation trend.

[0005] Therefore, it is necessary to provide a self-locking flexible clamping adjustment device for preventing the package from deviating, in order to solve the above-mentioned technical problems. Summary of the Invention

[0006] This invention overcomes the shortcomings of the prior art and provides a self-locking flexible clamping adjustment device for preventing wrapping deviation.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is: a self-locking flexible clamping adjustment device for preventing package deviation, comprising:

[0008] Mounting base;

[0009] A radial adjustment bracket is mounted on the mounting base;

[0010] A partitioned flexible pressure plate is disposed on the radial adjustment bracket and forms a central pressure zone and edge pressure zones on both sides of the central pressure zone along the width direction of the wrapping tape;

[0011] A deformable contact layer is provided on the side of the edge pressing area facing the wrapping tape, which is used to form an oblique guiding friction contact towards the center of the wrapping tape when the corresponding edge pressing area is over-pressed;

[0012] A pressure detection component is used to detect the clamping force in the central pressure zone and the edge pressure zone;

[0013] A differential self-locking mechanism, in conjunction with the edge pressing zone drive, is used to adjust and maintain the pressing position of the edge pressing zones on both sides; and

[0014] The control module is connected to the pressure detection component and the left and right differential self-locking mechanism, and is used to drive the left and right differential self-locking mechanism according to the pressure signal of the pressure detection component;

[0015] The radial adjustment bracket is used to adjust the pressing position of the partitioned flexible pressure plate relative to the cable core.

[0016] In a preferred embodiment of the present invention, the radial adjustment bracket includes a fixed guide seat, a radial sliding seat, and a radial adjustment component;

[0017] The fixed guide seat is connected to the mounting base and has a guide structure extending in the direction close to or away from the cable core wire. The radial sliding seat is slidably engaged with the fixed guide seat and carries the partitioned flexible pressure plate. The radial adjustment member is drivenly connected to the radial sliding seat and is used to drive the radial sliding seat to move along the guide structure.

[0018] In a preferred embodiment of the present invention, the partitioned flexible pressure plate is an integral elastic plate, and the central pressure area and the edge pressure area are connected by a thin-walled elastic connecting section, a slotted elastic bridge or a flexible hinge to form an elastically deformable connection area.

[0019] In a preferred embodiment of the present invention, the partitioned flexible pressure plate is a split structure formed by combining a central pressure plate and two side edge pressure plates. The edge pressure areas are installed on both sides of the main pressure plate seat through elastic connecting pieces, pins, flexible pads or small stroke sliders.

[0020] In a preferred embodiment of the present invention, the central pressure zone is provided with an arc-shaped base pressing surface adapted to the outer peripheral surface of the cable core on the side facing the wrapping tape. The arc-shaped base pressing surface is a continuous arc surface or an approximate arc surface formed by the transition of multiple small planes.

[0021] In a preferred embodiment of the present invention, the deformable contact layer includes: an elastic base layer, a deformable cavity disposed within the elastic base layer or on the back side of the elastic base layer, and oblique guide friction texture disposed on the surface of the elastic base layer;

[0022] The oblique guide friction textures disposed on the edge pressure areas on both sides are arranged in a mirror image, so that when the edge pressure area on either side is over-pressed, the corresponding deformable contact layer forms an oblique guide friction contact towards the center of the wrapping tape.

[0023] In a preferred embodiment of the present invention, the pressure detection component includes a central pressure detection element, a left pressure detection element, a right pressure detection element, and a signal conditioning unit;

[0024] The central pressure detection element is used to detect the clamping force received by the central pressure zone;

[0025] The left pressure detection element and the right pressure detection element are respectively used to detect the clamping force on the edge pressure areas on both sides;

[0026] The signal conditioning unit is used to process the signals output by the middle pressure sensor, the left pressure sensor, and the right pressure sensor, and send them to the control module.

[0027] In a preferred embodiment of the present invention, the differential self-locking mechanism includes a left adjustment part and a right adjustment part;

[0028] The left adjustment part is driven to engage with the edge pressing area on one side, and the right adjustment part is driven to engage with the edge pressing area on the other side;

[0029] The left adjustment section and the right adjustment section operate independently. The differential self-locking mechanism is equipped with a self-locking threaded pair, a worm gear pair, a wedge-shaped self-locking pair, a pawl locking pair, or an electric actuator with power-off retention capability.

[0030] A method for using a self-locking flexible clamping adjustment device for preventing package deviation includes the following steps:

[0031] S1. Install the mounting base near the wrapping head of the wrapping machine, the wrapping tape guide path, or the area where the wrapping tape and the cable core wire fit and cut into each other.

[0032] S2. Adjust the radial position of the partitioned flexible pressure plate relative to the cable core wire by means of the radial adjustment bracket, so that the pressing center of the partitioned flexible pressure plate corresponds to the contact cutting area between the wrapping tape and the cable core wire;

[0033] S3. The wrapping tape is brought into the fitting and cutting area, and a basic normal clamping force is applied to the wrapping tape by the partitioned flexible pressure plate.

[0034] S4. The pressure detection component detects the clamping force of the central pressure zone and the two side edge pressure zones respectively, and the control module determines the pressure distribution state of the wrapping tape in the width direction based on the detection results.

[0035] S5. When the wrapping tape deviates to one side and the corresponding edge pressure area is in an over-pressure state, the deformable contact layer on the corresponding side is transformed from a flexible surface contact state to an oblique guide friction contact towards the center of the wrapping tape.

[0036] S6. The control module drives the differential self-locking mechanism to slightly retract the edge pressing area on the overpressure side and compensate the edge pressing area on the opposite side until the pressing force of the edge pressing areas on both sides tends to be balanced.

[0037] S7. In the event of machine shutdown, roll change, power outage, gas outage, or emergency stop, the differential self-locking mechanism maintains the current adjustment position of the edge pressure zones on both sides.

[0038] In a preferred embodiment of the present invention, in step S3, the average contact pressure of the central pressure zone is 5kPa-60kPa, and the average contact pressure of the edge pressure zone during normal operation is lower than the pressure threshold corresponding to the transformation of the deformable contact layer from a flexible surface contact state to an oblique directional friction contact state.

[0039] This invention addresses the shortcomings of the prior art and has the following beneficial effects:

[0040] (1) This invention provides a self-locking flexible clamping and adjusting device for preventing wrapping deviation. It is arranged near the contact and cutting area between the wrapping tape and the cable core. The central clamping area establishes basic normal clamping, while the two edge clamping areas on both sides are responsible for deviation identification and correction adjustment. After the wrapping tape deviates to one side, the pressure on the deviated side is first detected and applied to the deformed contact layer, and then the differential self-locking mechanism performs yielding and compensation feeding. Thus, the edge overpressure caused by deviation is no longer just manifested as increased friction on one side, but is converted into pressure signal, return friction component and edge position adjustment. Compared with the structure that only relies on pressure rollers, elastic pressure plates or rigid pressure blocks to provide fixed clamping force, this device can suppress lateral deviation before the wrapping tape is finally overlapped, reduce overlap rate changes, edge lifting, local wrinkles and wrapping layer misalignment, and maintain a relatively stable fit during continuous wrapping.

[0041] (2) The partitioned flexible pressure plate of the present invention forms a central pressure zone and two side edge pressure zones along the width direction of the wrapping tape. The central pressure zone is provided with an arc-shaped base pressing surface adapted to the outer periphery of the cable core. The two side edge pressure zones form a support area that can be slightly deformed through thin-walled elastic connecting sections, slotted elastic bridges, flexible hinges or elastic connecting pieces. The arc-shaped base pressing surface disperses the normal pressure along the circumference of the cable core, while the edge pressure zones allow for local swaying or retreat, avoiding the edge of the wrapping tape being squeezed by the rigid boundary. Compared with a whole rigid pressure plate or a single pressure roller, this structure can reduce local indentations and wrinkles caused by line contact and sharp corner contact, so that the wrapping tape is stably attached in the middle while the edge still has a force adjustment margin. For materials that are easy to delaminate, such as mica tape and polyester tape, it can reduce the risk of warping caused by excessive edge pressure; for metal wrapping tape, it can reduce the overlap misalignment caused by local hard pressure.

[0042] (3) In this invention, a deformable contact layer is provided on the side of the edge pressure zone facing the wrapping tape. The deformable contact layer includes an elastic base layer, a deformation cavity, and oblique guide friction textures, which are arranged in a mirror image on both sides. When the wrapping tape is running in the center, the average contact pressure of the edge pressure zone is lower than the trigger threshold of the deformable contact layer, and the deformable contact layer transmits pressure in a flexible surface contact manner. When the wrapping tape deviates to one side and causes overpressure on that side edge, the elastic base layer and the deformation cavity undergo compression collapse or shear deformation, and the oblique textures form an inclined contact with the wrapping tape. As the wrapping tape continues to move forward, the contact friction force is decomposed into a lateral component toward the center of the bandwidth, causing the deviated side to tend to return to the center. Compared with a smooth surface pressure block or an ordinary elastic pad, this structure does not simply increase frictional resistance, but uses edge overpressure to change the contact shape and friction direction, which can reduce the situation where the deviated side deviates further with pressure and reduce the probability of edge wear and uneven overlap.

[0043] (4) This invention obtains the pressure of each pressure zone through the left pressure detection element, the middle pressure detection element and the right pressure detection element, and the control module determines the deflection direction of the wrapping tape by combining the pressure difference or the pressure distribution center, and then drives the differential self-locking mechanism to make the edge pressure zone on the over-pressure side slightly retract and the edge pressure zone on the opposite side compensate for the feed. The single-sided retraction can reduce the normal pressure on the deviation side and the edge friction lock, and the feed on the other side can increase the reverse support, so that the resultant force position in the width direction of the wrapping tape returns to the theoretical overlap center line. Compared with wrapping equipment that requires manual shutdown to adjust the pressing position, this structure can complete small stroke correction according to the pressure change during operation, reducing the number of shutdowns for troubleshooting and re-threading. After the differential self-locking mechanism adopts the self-locking thread pair, worm gear pair, wedge self-locking pair or ratchet locking pair, it can still maintain the edge pressure zone position in the state of shutdown, roll change, power failure, air failure or emergency stop, avoiding the sudden release of the pressing posture causing the wrapping tape to loosen, and reducing the secondary deviation at the moment of restart. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a preferred embodiment of the present invention;

[0046] Figure 2 This is a cross-sectional structural schematic diagram showing the cooperative relationship between the radial adjustment bracket, the partitioned flexible pressure plate, and the cable core wires in this invention;

[0047] Figure 3 This is a schematic diagram of the partitioned flexible pressure plate in this invention;

[0048] Figure 4 This is a partially enlarged cross-sectional view of the deformable contact layer in this invention;

[0049] Figure 5 This is a schematic diagram showing the connection relationship between the pressure detection component and the control module in this invention.

[0050] In the diagram: 1. Mounting base; 2. Radial adjustment bracket; 3. Fixed guide seat; 4. Radial sliding seat; 5. Radial adjustment component; 6. Partitioned flexible pressure plate; 7. Central pressure zone; 8. Left edge pressure zone; 9. Right edge pressure zone; 10. Arc-shaped base pressing surface; 11. Deformable contact layer; 12. Elastic base layer; 13. Deformation cavity; 14. Oblique guide friction texture; 15. Pressure detection component; 16. Central pressure detection component; 17. Left pressure detection component; 18. Right pressure detection component; 19. Differential self-locking mechanism; 20. Control module. Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein. Therefore, the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0053] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 limiting the scope of protection of this application.

[0054] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0055] like Figure 1 As shown, a self-locking flexible clamping adjustment device for preventing package deviation includes:

[0056] Mounting base 1;

[0057] Radial adjustment bracket 2 is mounted on mounting base 1;

[0058] A partitioned flexible pressure plate 6 is set on the radial adjustment bracket 2, and forms a central pressure zone 7 and edge pressure zones on both sides of the central pressure zone 7 along the width direction of the wrapping tape;

[0059] Deformable contact layer 11 is provided on the side of the edge pressing area facing the wrapping tape, and is used to form an oblique guide friction contact towards the center of the wrapping tape when the corresponding edge pressing area is over-pressed;

[0060] Pressure detection component 15 is used to detect the clamping force of the central pressure zone 7 and the edge pressure zone;

[0061] Differential self-locking mechanism 19, in conjunction with the edge pressing zone drive, is used to adjust and maintain the pressing position of the two edge pressing zones; and

[0062] The control module 20 is connected to the pressure detection component 15 and the left and right differential self-locking mechanism 19, and is used to drive the left and right differential self-locking mechanism 19 according to the pressure signal of the pressure detection component 15.

[0063] Among them, the radial adjustment bracket 2 is used to adjust the pressing position of the partition flexible pressure plate 6 relative to the cable core wire.

[0064] This invention integrates a partitioned flexible pressure plate 6, a deformable contact layer 11, and a differential self-locking mechanism 19 into the wrapping tape bonding area. The partitioned flexible pressure plate 6 forms partitioned pressing along the width of the wrapping tape; the deformable contact layer 11 provides guidance by utilizing force changes in the edge areas; the pressure detection component 15 acquires the pressure status of each pressing zone; the differential self-locking mechanism 19 adjusts the position of the edge pressing zones and maintains the adjusted state; and the control module 20 controls the operation of the differential self-locking mechanism 19 based on the pressure status. Through the coordinated operation of these structures, the wrapping tape maintains a stable operating state during bonding, thereby reducing problems such as changes in overlap rate, edge lifting, and wrapping layer misalignment caused by lateral deviation.

[0065] The following will, in conjunction with the accompanying drawings, provide a detailed description of the specific structure, connection relationships, and working process of each of the above components.

[0066] Example 1:

[0067] like Figure 1 As shown in the figure, this embodiment provides a self-locking flexible clamping adjustment device for preventing wrapping deviation, which is installed near the contact and cutting area where the wrapping tape of the wrapping machine enters the surface of the cable core. The self-locking flexible clamping adjustment device for preventing wrapping deviation includes a mounting base 1, a radial adjustment bracket 2, a partitioned flexible pressure plate 6, a deformable contact layer 11, a pressure detection component 15, a differential self-locking mechanism 19, and a control module 20.

[0068] In this embodiment, the wrapping machine is used to continuously wrap the wrapping tape around the outer circumference of the cable core. The wrapping tape can be mica tape, copper tape, aluminum tape, polyester tape, semi-conductive tape, shielding tape, or other strip materials used for cable insulation, shielding, and protection. The cable core moves continuously along the axial direction under the action of the traction mechanism, and the wrapping tape is wrapped around the outer circumference of the cable core at a predetermined helical angle under the action of the wrapping head rotation. When the wrapping tape enters the surface of the cable core from a free conveying state, there is a transition area from introduction to bonding, which is the bonding cutting area. Since the wrapping tape is not completely and stably bonded in the bonding cutting area, and is simultaneously affected by the wrapping tension, introduction angle, fluctuation of the outer diameter of the cable core, and distribution of the clamping force, the bonding cutting area is also the location where the wrapping tape is more likely to deviate laterally. In this embodiment, the self-locking flexible clamping adjustment device is arranged near the bonding cutting area, so that the wrapping tape is subject to zoned clamping and correction control before forming the final wrapping position.

[0069] In this embodiment, the mounting base 1 serves as the basic mounting component of the entire self-locking flexible clamping adjustment device, used to fix the self-locking flexible clamping adjustment device to the frame of the wrapping machine, the wrapping head bracket, the guide belt bracket, or other fixed components near the contact cutting area. The mounting base 1 adopts one of the following structures: plate structure, block structure, bent bracket structure, or combined support structure.

[0070] To facilitate assembly, the mounting base 1 is provided with several mounting holes, which are one of the following: round holes, oblong holes, or countersunk holes. The mounting base 1 is fixedly connected to the wrapping machine by bolts, screws, or pins.

[0071] To facilitate adjustment of the angle of the self-locking flexible clamping adjustment device relative to the direction of the wrapping tape introduction, the mounting base 1 is also equipped with an arc-shaped adjustment groove or an oblong adjustment groove, allowing the radial adjustment bracket 2 to be adjusted within a certain angle range before being locked in place. Therefore, the self-locking flexible clamping adjustment device can adapt to the usage requirements of different specifications of wrapping machines, different diameter cable cores, and different incident angles of the wrapping tape.

[0072] like Figure 2 As shown, the radial adjustment bracket 2 is mounted on the mounting base 1 and is used to adjust the pressing position of the partition flexible pressure plate 6 relative to the cable core. The radial adjustment bracket 2 includes a fixed guide seat 3, a radial sliding seat 4, and a radial adjustment component 5.

[0073] The fixed guide seat 3 is connected to the mounting base 1, and the fixed guide seat 3 is provided with a guide structure extending in the direction close to or away from the cable core. The guide structure is a dovetail groove, linear slide rail, guide post, guide hole, or other sliding fit structure that can restrict the movement direction of the radial sliding seat 4. The radial sliding seat 4 is slidably fitted with the fixed guide seat 3 and serves as the mounting support of the partitioned flexible pressure plate 6; the radial adjusting member 5 is drivenly connected to the radial sliding seat 4, driving the radial sliding seat 4 to move in the direction close to or away from the cable core.

[0074] Furthermore, the radial adjustment component 5 can be an adjusting screw, a lead screw and nut pair, an eccentric wheel, a fine-tuning handwheel, or an electric push rod.

[0075] In a simplified structure, the radial adjustment component 5 is an adjusting screw, which is threadedly connected to the fixed guide seat 3. The end of the adjusting screw abuts against or connects to the radial sliding seat 4. When the adjusting screw is rotated, the radial sliding seat 4 undergoes a slight displacement along the guide structure of the fixed guide seat 3, thereby causing the partitioned flexible pressure plate 6 to move closer to or away from the cable core. After adjustment, the radial sliding seat 4 is locked relative to the fixed guide seat 3 by locking screws, pressure blocks, locking nuts, or eccentric locking components to prevent changes in the pressure position due to vibration during the wrapping process.

[0076] Furthermore, the radial adjustment bracket 2 allows the self-locking flexible clamping adjustment device to first establish a basic clamping position. In other words, the radial adjustment bracket 2 is mainly used for coarse or basic adjustment of the entire partitioned flexible clamping plate 6 based on the cable core diameter, wrapping tape thickness, and process clamping requirements. Once the basic clamping position is determined, subsequent fine adjustments to address uneven force distribution in the wrapping tape width direction are completed by the differential self-locking mechanism 19 acting on the edge clamping area. This structural division of labor between overall radial adjustment and edge differential adjustment avoids concentrating all adjustment actions on a single mechanism, thereby improving adjustment accuracy and operational stability.

[0077] like Figure 3 As shown, the partitioned flexible pressure plate 6 is mounted on the radial adjustment bracket 2, specifically at one end of the radial sliding seat 4 near the cable core. The partitioned flexible pressure plate 6 extends along the width direction of the wrapping tape and forms a central pressure zone 7 and left edge pressure zones 8 and right edge pressure zones 9 located on both sides of the central pressure zone 7; the central pressure zone 7 forms an arc-shaped base pressing surface 10 on the side facing the wrapping tape.

[0078] For ease of explanation, the two edge pressing zones are referred to as the left edge pressing zone 8 and the right edge pressing zone 9, respectively. The central pressing zone 7 corresponds to the middle area in the width direction of the wrapping tape, providing a basic normal clamping force for the wrapping tape, ensuring that the wrapping tape is stably attached to the surface of the cable core within the bonding and cutting area. The left edge pressing zone 8 and the right edge pressing zone 9 correspond to the two side edge areas of the wrapping tape, respectively, and are used in conjunction with the deformable contact layer 11, the pressure detection component 15, and the differential self-locking mechanism 19 to detect and adjust the lateral offset trend of the wrapping tape.

[0079] Furthermore, the partitioned flexible pressure plate 6 can be an integral elastic plate, or it can be a split structure formed by combining the central pressure plate and the two side edge pressure plates.

[0080] In the integrated structure, the central pressure zone 7 and the edge pressure zone are connected by a thin-walled elastic connecting section, a slotted elastic bridge or a flexible hinge to form an elastically deformable connection area, so that the edge pressure zone can produce a slight sway, a slight yield or a local pressing displacement relative to the central pressure zone 7.

[0081] In the split structure, the central pressure zone 7 is installed on the main pressure plate seat, and the two edge pressure zones are installed on both sides of the main pressure plate seat through elastic connecting pieces, pins, flexible pads or small stroke sliders.

[0082] Regardless of whether it adopts an integrated or split structure, the partitioned flexible pressure plate 6 should be able to achieve a combination of overall pressing and local partition adjustment.

[0083] Specifically, the side of the central pressure zone 7 facing the wrapping tape is provided with an arc-shaped base pressing surface 10. The aforementioned arc-shaped base pressing surface 10 is adapted to the outer peripheral surface of the cable core, so that the wrapping tape is subjected to uniform pressing action within the fitting and cutting area.

[0084] The curved base clamping surface 10 is a continuous arc surface, or it can be an approximate arc surface formed by the transition of multiple small planes. For cables with smaller wire diameters, the radius of curvature of the curved base clamping surface 10 is correspondingly reduced; for cables with larger wire diameters, the radius of curvature of the curved base clamping surface 10 is correspondingly increased. Through this curved base clamping surface 10, the local sharp corner contact between the partitioned flexible clamping plate 6 and the wrapping tape can be reduced, thereby reducing the risk of indentation, cracks, or local wrinkles in the wrapping tape.

[0085] Specifically, the left edge pressing area 8 and the right edge pressing area 9 are located on both sides of the central pressing area 7, and both the left edge pressing area 8 and the right edge pressing area 9 have a deformable contact layer 11 on the side facing the wrapping tape. The deformable contact layer 11 is used to form an oblique guiding friction contact towards the center of the wrapping tape when the corresponding edge pressing area is over-pressurized. Over-pressurization of the edge pressing area here refers to the normal pressure exerted on the corresponding edge pressing area by the edge region of the wrapping tape after it deviates to one side, which is higher than the edge pressure under normal bonding conditions.

[0086] In this embodiment, the local pressure that the edge pressing area can withstand is represented by the force value experienced by the edge pressing area, or it can be represented by the average contact pressure obtained by dividing the force value by the effective contact area of ​​the edge pressing area. The effective contact area refers to the area where the edge pressing area and the edge area of ​​the wrapping tape actually contact each other within the fitting and cutting area and can transmit the clamping force.

[0087] In one specific embodiment, the effective contact width corresponding to each edge pressing zone is 5%-25% of the wrapping tape width, preferably 8%-18%; the effective contact length is 5mm-50mm, preferably 10mm-30mm. Therefore, the effective contact area of ​​a single edge pressing zone is 20mm². 2 -800mm 2 Preferably 50mm 2 -400mm 2 .

[0088] Furthermore, the average contact pressure borne by the edge pressure zone during normal operation is 2 kPa-80 kPa, preferably 5 kPa-50 kPa. For wrapping tapes such as mica tape and polyester tape, which are prone to indentation or delamination, the average contact pressure at the normal edge is preferably 5 kPa-25 kPa; for metal wrapping tapes such as copper tape and aluminum tape, the average contact pressure at the normal edge is preferably 15 kPa-80 kPa. The preset pressure threshold of the deformable contact layer 11 is higher than the average contact pressure at the normal edge. This preset pressure threshold refers to the pressure value of the edge pressure zone corresponding to the transition of the deformable contact layer 11 from a flexible surface contact state to an oblique guiding friction contact state. The preset pressure threshold is 1.2 times to 3 times the average contact pressure at the normal edge, preferably 1.4 times to 2.2 times.

[0089] Specifically, during normal centered operation of the wrapping tape, the pressure on the edge regions on both sides of the wrapping tape is basically balanced. The deformable contact layer 11 mainly contacts the wrapping tape through flexible surface contact. At this time, the lateral guiding effect of the edge regions on the wrapping tape is weak or basically non-existent. When the wrapping tape shifts laterally to one side, the edge on the shifted side presses more strongly against the corresponding edge pressure area, causing that edge pressure area and the deformable contact layer 11 on it to bear greater local pressure. When this local pressure reaches a preset pressure threshold, the contact pattern of the deformable contact layer 11 changes, and as the wrapping tape continues to advance, it forms an oblique guiding friction contact towards the center of the wrapping tape.

[0090] like Figure 4 As shown, in one specific structure, the deformable contact layer 11 includes an elastic base layer 12, a deformation cavity 13 disposed within or on the back of the elastic base layer 12, and oblique guide friction textures 14 disposed on the surface of the elastic base layer 12. The elastic base layer 12 is made of polyurethane, silicone rubber, nitrile rubber, fluororubber, thermoplastic elastomer, or other materials with wear resistance and elastic recovery capability; the oblique guide friction textures 14 are oblique ribs, oblique grooves, herringbone textures, oblique wedge-shaped protrusions, or microtexture arrays. The oblique guide friction textures 14 disposed on the left edge pressure zone 8 are arranged in a mirror image with the oblique guide friction textures 14 disposed on the right edge pressure zone 9, so that when the left edge is over-pressed, a lateral force pointing to the right is generated, and when the right edge is over-pressed, a lateral force pointing to the left is generated.

[0091] To ensure that the pressure threshold of the deformable contact layer 11 falls within a preset range, the parameters are controlled by the hardness of the elastic base layer 12 material, the thickness of the elastic base layer 12, the height of the deformable cavity 13, the wall thickness of the deformable cavity 13, the area ratio of the deformable cavity 13, and the oblique directional friction texture 14. The Shore A hardness of the elastic base layer 12 is 30-90, preferably 40-75; the thickness of the elastic base layer 12 is 1mm-10mm, preferably 2mm-6mm; the height of the deformable cavity 13 is 0.2mm-4mm, preferably 0.5mm-2.5mm; the wall thickness of the deformable cavity 13 is 0.2mm-3mm, preferably 0.5mm-1.5mm; and the projected area ratio of the deformable cavity 13 within the effective contact area of ​​the edge pressure zone is 10%-75%, preferably 25%-60%.

[0092] When it is necessary to lower the preset pressure threshold, a less hard elastic base layer 12 is selected, the height of the deformation cavity 13 is increased, the wall thickness of the deformation cavity 13 is decreased, or the area ratio of the deformation cavity 13 is increased, so that the deformable contact layer 11 can undergo compression collapse or shear deformation under a small edge pressure. When it is necessary to increase the preset pressure threshold, a more hard elastic base layer 12 is selected, the height of the deformation cavity 13 is decreased, the wall thickness of the deformation cavity 13 is increased, or the area ratio of the deformation cavity 13 is decreased, so that the deformable contact layer 11 only forms oblique directional friction contact under a larger edge pressure. Thus, those skilled in the art can control the pressure threshold of the deformable contact layer 11 within a preset range by combining the material hardness and the structural parameters of the deformation cavity 13.

[0093] Furthermore, the angle between the oblique guiding friction texture 14 and the forward direction of the wrapping tape is 10°-30°; the texture height of the oblique guiding friction texture 14 is 0.08mm-0.8mm; and the texture spacing is 0.3mm-8mm, preferably 0.8mm-4mm. A larger angle results in a more pronounced lateral force generated by the oblique guiding friction contact, but an excessively large angle can increase wear on the edge of the wrapping tape. A larger texture height makes guiding contact easier to form, but an excessively high texture may cause indentations on the surface of the wrapping tape. Therefore, in this embodiment, the formation strength of the oblique guiding friction contact is jointly limited by the texture angle, texture height, and texture spacing.

[0094] Furthermore, the preset pressure threshold of the deformable contact layer 11 can be calibrated experimentally. During calibration, a sample with the same or similar material and thickness as the actual wrapping tape is placed on the surface of the deformable contact layer 11, the normal loading force is gradually increased, and the loading force when the deformable contact layer 11 changes from a flexible surface contact state to an oblique directional friction contact state is recorded. This change is determined by observing the stable oblique contact marks between the oblique directional friction texture 14 and the wrapping tape sample, measuring the lateral friction component generated when the wrapping tape sample moves in the forward direction, or detecting the displacement trend of the wrapping tape sample towards the center.

[0095] like Figure 5 As shown, the pressure detection component 15 is connected to the control module 20 and is used to detect the clamping force of the central pressure zone 7 and the edge pressure zones, and send the pressure signal to the control module 20. The pressure detection component 15 includes a central pressure detection element 16, a left pressure detection element 17, and a right pressure detection element 18.

[0096] The central pressure sensor 16 detects the clamping force on the central pressure zone 7, the left pressure sensor 17 detects the clamping force on the left edge pressure zone 8, and the right pressure sensor 18 detects the clamping force on the right edge pressure zone 9. The pressure sensors can be thin-film pressure sensors, strain gauge pressure sensors, miniature load cells, piezoresistive pressure sensors, or piezoelectric pressure sensors. The pressure sensors are positioned between the corresponding pressure zone and the radial adjustment bracket 2, or can be located on the back of the corresponding pressure zone, at the output end of the differential self-locking mechanism 19, or in the pressure plate support.

[0097] In one specific arrangement, the central pressure sensor 16 is disposed between the back of the central pressure zone 7 and the radial sliding seat 4, and is used to detect the basic clamping force; the left pressure sensor 17 is disposed between the back of the left edge pressure zone 8 and the left differential adjustment output, and is used to detect the pressure of the left edge pressure zone 8; the right pressure sensor 18 is disposed between the back of the right edge pressure zone 9 and the right differential adjustment output, and is used to detect the pressure of the right edge pressure zone 9. The pressure detection assembly 15 also includes a signal conditioning unit, which is used to amplify, filter, perform analog-to-digital conversion or anti-interference processing on the electrical signal output by the pressure sensor, and send the processed pressure signal to the control module 20.

[0098] Specifically, the pressure detection component 15 not only displays the magnitude of the clamping force, but more importantly, enables the control module 20 to identify the force distribution along the width of the wrapping tape. For example, when the pressure in the central pressure zone 7 is within the normal range and the pressure difference between the two edge pressure zones is small, the wrapping tape is considered to be in a relatively stable, centered fit. When the pressure in one edge pressure zone is significantly greater than that in the other edge pressure zone, the wrapping tape is considered to have a tendency to shift towards that side. Thus, the pressure detection component 15 converts the local mechanical changes caused by the lateral deviation of the wrapping tape into a detectable signal, providing a basis for the adjustment of the differential self-locking mechanism 19.

[0099] In this embodiment, the differential self-locking mechanism 19 is driven by the edge pressing zone to adjust and maintain the pressing position of the two edge pressing zones. The differential self-locking mechanism 19 includes a left adjustment part and a right adjustment part. The left adjustment part is driven by the left edge pressing zone 8, and the right adjustment part is driven by the right edge pressing zone 9. The left and right adjustment parts operate independently, or achieve differential action of one side feeding and the other side retracting through a mechanical linkage structure. The self-locking structure in the differential self-locking mechanism 19 adopts a self-locking thread pair, a worm gear pair, a wedge self-locking pair, a ratchet locking pair, or an electric actuator with power-off retention capability.

[0100] In a preferred configuration, the differential self-locking mechanism 19 includes a fine-tuning push rod, a wedge-shaped transmission element, and a self-locking threaded pair. The fine-tuning push rod outputs a small linear displacement; the wedge-shaped transmission element converts the displacement of the fine-tuning push rod into a change in the pressing position of the edge pressing area toward or away from the wrapping tape; the self-locking threaded pair maintains the current position of the fine-tuning push rod when there is no external power input. The self-locking threaded pair adopts a trapezoidal thread, a fine-pitch thread, or a worm gear structure. The helix angle of the self-locking threaded pair is preferably smaller than the friction self-locking angle, so that the reverse force on the edge pressing area cannot drive the adjustment mechanism to retract.

[0101] Furthermore, a wedge-shaped transmission component is positioned between the fine-tuning push rod and the edge pressing zone. The wedge-shaped transmission component includes a wedge block and a sliding block that engages with the wedge block. When the fine-tuning push rod pushes the wedge block to move in the first direction, the sliding block, under the action of the inclined surface, pushes the corresponding edge pressing zone closer to the wrapping tape, thereby increasing the pressing position of the edge pressing zone on that side. When the fine-tuning push rod moves in the opposite direction, the edge pressing zone, under its own elastic restoring force or the action of the reset elastic element, moves away from the wrapping tape, thereby achieving a slight retraction of the edge pressing zone on that side. Because the wedge-shaped transmission component has displacement amplification or displacement subdivision functions, it can convert the easily controllable axial displacement of the fine-tuning push rod into a smaller and more stable pressing displacement of the edge pressing zone, improving adjustment accuracy.

[0102] In another configuration, the differential self-locking mechanism 19 employs a bidirectional lead screw structure. The two ends of the bidirectional lead screw have threaded sections with opposite directions of rotation, which connect to the left and right adjusting sliders, respectively. When the bidirectional lead screw rotates in one direction, the left adjusting slider moves closer to the wrapping tape, while the right adjusting slider moves away from the wrapping tape; when the bidirectional lead screw rotates in the opposite direction, the movements are reversed. This structure allows for differential adjustment of the two edge pressure zones simultaneously with a single drive unit. The bidirectional lead screw itself can also be configured as a self-locking threaded pair, thus maintaining its current position during machine stoppage, power failure, or emergency stop.

[0103] In this embodiment, the control module 20 is connected to the pressure detection component 15 and the differential self-locking mechanism 19, and is used to drive the differential self-locking mechanism 19 according to the pressure signal from the pressure detection component 15. The control module 20 is a functional module in a PLC controller, a microcontroller control board, an industrial controller, or the main control system of the wrapping machine. The control module 20 receives the pressure signals output by the middle pressure detection component 16, the left pressure detection component 17, and the right pressure detection component 18, and determines whether the wrapping tape has a tendency to deviate based on the pressure magnitude and pressure difference of each pressure zone.

[0104] In one control method, the control module 20 records the pressure of the left edge pressure zone 8 as PL, the pressure of the middle pressure zone 7 as PM, and the pressure of the right edge pressure zone 9 as PR.

[0105] When the difference between PL and PR is within the preset allowable range and PM is within the basic compression range, the control module 20 determines that the wrapping tape is in a normal fit state, and the differential self-locking mechanism 19 maintains the current position.

[0106] When PL is significantly greater than PR and PL exceeds the edge pressure threshold, the control module 20 determines that the wrapping tape is shifted to the left edge pressure zone 8 and controls the differential self-locking mechanism 19 to make the left edge pressure zone 8 slightly retract and to make the right edge pressure zone 9 feed appropriately.

[0107] When PR is significantly greater than PL and PR exceeds the edge pressure threshold, the control module 20 determines that the wrapping tape is shifted to the right edge pressure zone 9 and controls the differential self-locking mechanism 19 to make the right edge pressure zone 9 slightly retract and to make the left edge pressure zone 8 feed appropriately.

[0108] Through the above differential adjustment, the pressure on both sides of the wrapping tape in the width direction gradually tends to be balanced.

[0109] Furthermore, the control module 20 calculates the pressure distribution center based on the pressure signals from the left, center, and right pressure zones. The pressure distribution center is used to characterize the position of the resultant force distribution in the width direction of the wrapping tape, and its offset direction and amount relative to the theoretical overlap centerline can be used as a basis for judging the trend of wrapping tape deviation.

[0110] Specifically, a horizontal coordinate axis is established along the width of the wrapping tape, with the theoretical overlap centerline as the origin. The direction towards the right edge pressure zone 9 is defined as the positive direction, and the direction towards the left edge pressure zone 8 is defined as the negative direction. The coordinates of the pressure detection points in the left edge pressure zone 8 are denoted as XL, the coordinates of the pressure detection points in the middle pressure zone 7 are denoted as XM, and the coordinates of the pressure detection points in the right edge pressure zone 9 are denoted as XR. Here, XL is a negative value, XM can be 0, and XR is a positive value. When the left and right edge pressure zones 9 are symmetrically arranged relative to the middle pressure zone 7, XL = -d, XM = 0, and XR = d can be taken; when the left and right edge pressure zones 9 are not completely symmetrical, the values ​​are taken according to the actual installation distance of each pressure detection point relative to the theoretical overlap centerline.

[0111] If the pressure in the left edge pressure zone 8 is denoted as PL, the pressure in the middle pressure zone 7 as PM, and the pressure in the right edge pressure zone 9 as PR, then the pressure distribution center Xc is calculated according to the following formula: Xc = (PL × XL + PM × XM + PR × XR) / (PL + PM + PR). When XM is 0, the formula simplifies to: Xc = (PL × XL + PR × XR) / (PL + PM + PR). When the left and right edge pressure zones 9 are symmetrically arranged and XL = -d and XR = d, the formula is further expressed as: Xc = d × (PR - PL) / (PL + PM + PR).

[0112] Where Xc represents the offset of the pressure distribution center relative to the theoretical overlap center line. When Xc is negative, it indicates that the pressure distribution center is biased to the left, and the wrapping tape tends to deviate to the left or have excessive pressure on the left edge; when Xc is positive, it indicates that the pressure distribution center is biased to the right, and the wrapping tape tends to deviate to the right or have excessive pressure on the right edge; when Xc is close to 0, it indicates that the pressure distribution center is located near the theoretical overlap center line, and the wrapping tape is in a relatively stable fit.

[0113] If the pressure sensor outputs the average contact pressure instead of the force value, the control module 20 first converts the pressure into an equivalent pressure based on the effective contact area of ​​each pressure zone. Specifically, the equivalent pressure of the left edge pressure zone 8 is PL = qL × AL, the equivalent pressure of the middle pressure zone 7 is PM = qM × AM, and the equivalent pressure of the right edge pressure zone 9 is PR = qR × AR. Here, qL, qM, and qR are the average contact pressures of the left, middle, and right pressure zones, respectively, and AL, AM, and AR are the effective contact areas of the left, middle, and right pressure zones, respectively. Then, PL, PM, and PR are substituted into the pressure distribution center formula mentioned above. Thus, even if the contact areas of each pressure zone are different, a comparable pressure distribution center can be obtained.

[0114] To improve computational stability, the control module 20 can perform zero-point calibration, filtering, and outlier removal on the pressure signal before calculating the pressure distribution center. Zero-point calibration involves recording the initial output value of each pressure sensor when the partitioned flexible pressure plate 6 is not in contact with the wrapping tape, and subtracting this initial output value from the real-time pressure value in subsequent calculations. Filtering can employ moving average filtering, median filtering, or low-pass filtering. Outlier removal means that when a sampled value significantly exceeds the normal mechanical impact range, the control module 20 will not use that sampled value for pressure distribution center calculation.

[0115] Furthermore, the control module 20 sets a pressure distribution center dead zone. The pressure distribution center dead zone refers to the range within which a small offset of the pressure distribution center relative to the theoretical overlap center line is allowed. The pressure distribution center dead zone is set to 1%-5% of the wrapping tape width; it can also be set to 0.1mm to 1mm. When Xc is within the pressure distribution center dead zone, the control module 20 determines that the wrapping tape is within the allowable range and does not drive the differential self-locking mechanism 19 to operate; when Xc exceeds the pressure distribution center dead zone and the pressure in the corresponding side edge pressure zone exceeds the preset pressure threshold, the control module 20 outputs a differential adjustment command.

[0116] The working process of this embodiment is as follows:

[0117] Before starting the wrapping machine, the wrapping tape is passed through the guide mechanism and introduced into the contact cutting area on the surface of the cable core. The operator adjusts the position of the device using the mounting base 1 and the radial adjustment bracket 2, so that the partitioned flexible pressure plate 6 corresponds to the contact cutting area. Subsequently, the radial position of the partitioned flexible pressure plate 6 relative to the cable core is adjusted using the radial adjustment bracket 2, so that the central pressure zone 7 and the two side edge pressure zones can form proper contact with the wrapping tape. When the pressure detection component 15 detects that the pressure in the central pressure zone 7 has reached the basic clamping requirement, the position of the radial adjustment bracket 2 is locked.

[0118] During normal operation of the wrapping machine, the cable core advances axially, and the wrapping tape enters the bonding and cutting zone under the action of the wrapping head and adheres to the surface of the cable core. At this time, the central pressure zone 7 provides basic normal clamping force for the wrapping tape, while the edge pressure zones on both sides provide auxiliary clamping force to the edge areas on both sides of the wrapping tape. The deformable contact layer 11 contacts the wrapping tape in a flexible surface contact manner under normal pressure, ensuring that the wrapping tape passes smoothly through the bonding and cutting zone.

[0119] When the wrapping tape remains centered, the pressure detected by the left edge pressure zone 8 and the right edge pressure zone 9 is roughly balanced, and the control module 20 does not drive the differential self-locking mechanism 19 to operate. At this time, the differential self-locking mechanism 19 maintains the current position of the two edge pressure zones by relying on its self-locking structure, and the partitioned flexible pressure plate 6 continuously and stably presses the wrapping tape.

[0120] When the wrapping tape deviates laterally to the left, the left edge of the wrapping tape presses more forcefully against the left edge pressure zone 8, increasing the pressure in the left edge pressure zone 8. The left deformable contact layer 11, subjected to greater pressure, undergoes local deformation, forming an oblique guiding friction contact towards the center of the wrapping tape. Since the wrapping tape continues to move in the forward direction, friction occurs between the wrapping tape and this oblique guiding friction contact surface. This friction has a lateral component pointing towards the center of the wrapping tape, causing the wrapping tape to tend to return to the center to the right. Simultaneously, the pressure detection component 15 sends a signal indicating increased pressure on the left side to the control module 20. The control module 20 determines that the wrapping tape has a tendency to deviate to the left and then drives the differential self-locking mechanism 19, causing the left edge pressure zone 8 to slightly retract and the right edge pressure zone 9 to be appropriately fed. The left retraction reduces the overpressure on the left edge, while the right-side feed strengthens the right-side support, restoring the stress state of the wrapping tape towards the center.

[0121] When the wrapping tape deviates laterally to the right, the pressure in the right edge pressure zone 9 increases. Under overpressure, the right-side deformable contact layer 11 forms an oblique guiding friction contact towards the center of the wrapping tape, causing the wrapping tape to be subjected to a lateral force pushing it back to the left. Simultaneously, the control module 20 drives the differential self-locking mechanism 19 based on the right-side pressure increase signal, causing the right edge pressure zone 9 to slightly retract and the left edge pressure zone 8 to be appropriately fed. Through right-side retraction and left-side compensating feed, the pressure distribution of the wrapping tape gradually returns to a balanced state.

[0122] When the equipment stops, reels are changed, power is cut off, air supply is cut off, or an emergency stop occurs, the differential self-locking mechanism 19 maintains its current adjustment position, ensuring that the edge pressing zones on both sides remain in the pressed position before the shutdown. Because the pressing posture of the partitioned flexible pressing plate 6 does not immediately release due to the disappearance of external power, the wrapping tape will not suddenly loosen due to the retraction of the pressing mechanism, and it is less likely to experience secondary deviation upon restart. After restarting, the control module 20 continues to read the pressure signal from the pressure detection component 15 and makes minor corrections based on the original pressing state, thereby improving the stability of continuous production.

[0123] In this embodiment, the mounting base 1 provides a stable mounting reference, the radial adjustment bracket 2 provides adjustment of the base clamping position, the partitioned flexible pressure plate 6 provides partitioned clamping in the width direction, the deformable contact layer 11 converts edge overpressure into a guiding friction action towards the center of the wrapping tape, the pressure detection component 15 converts the force state of each pressure zone into an identifiable signal, and the differential self-locking mechanism 19 adjusts the edge pressure zone according to the instructions of the control module 20 and maintains the adjusted position. The above structures work together to enable this device to identify, guide, and adjust the wrapping tape deviation trend when the wrapping tape enters the contact cutting area on the surface of the cable core, thereby reducing the changes in overlap rate, edge lifting, local wrinkles, and wrapping layer misalignment.

[0124] Example 2:

[0125] This embodiment provides a method for using a self-locking flexible clamping adjustment device for preventing package deviation. This method is implemented using the self-locking flexible clamping adjustment device for preventing package deviation in Embodiment 1.

[0126] The usage method includes the following steps:

[0127] S1. Install the mounting base 1 near the wrapping head of the wrapping machine, the wrapping tape guide path, or the area where the wrapping tape and cable core wires fit and cut into each other.

[0128] S2. Adjust the radial position of the partitioned flexible pressure plate 6 relative to the cable core wire by adjusting the radial adjustment bracket 2 so that the pressing center of the partitioned flexible pressure plate 6 corresponds to the contact and cutting area between the wrapping tape and the cable core wire.

[0129] S3. Make the wrapping tape enter the fitting and cutting area, and apply a basic normal clamping force to the wrapping tape through the partitioned flexible pressure plate 6.

[0130] S4. The pressure detection component 15 detects the clamping force of the central pressure zone 7 and the two side edge pressure zones respectively, and the control module 20 calculates the offset direction and offset amount of the pressure distribution center relative to the theoretical overlap center line.

[0131] S5. When the wrapping tape deviates to one side and the pressure in the corresponding edge pressure zone exceeds the preset pressure threshold, the corresponding side deformation contact layer 11 is switched from a flexible surface contact state to an oblique guide friction contact state, thereby generating a lateral return force toward the center of the wrapping tape during the wrapping tape's forward movement.

[0132] S6. Based on the offset direction and offset amount of the pressure distribution center, the differential self-locking mechanism 19 causes the edge pressure zone on the biased side to slightly retract, and the edge pressure zone on the opposite side to compensate for the feed, until the pressure distribution center returns to the vicinity of the theoretical overlap center line.

[0133] S7. In the event of machine shutdown, roll change, power outage, gas outage or emergency stop, the differential self-locking mechanism 19 maintains the current adjustment position, so that the partition flexible pressure plate 6 maintains the pressing position and correction posture before the machine shutdown.

[0134] This embodiment, through the coordination of the steps described above, completes deviation identification, centering guidance, pressure redistribution, and attitude maintenance within the wrapping tape's bonding and cutting area, thereby improving the stability of the wrapping layer overlap rate and the continuity of the wrapping process.

[0135] In step S1, a stable installation reference is first established for the device, and the pressing area of ​​the device is made close to the fitting and cutting position where the wrapping tape is most prone to deviation.

[0136] During installation, prioritize using a high-rigidity wrapping head bracket, guide belt bracket, or frame connecting plate on the wrapping machine as the fixing position. Fix the mounting base 1 with bolts, screws, pins, or clamps. Then, based on the wrapping tape guide angle, use the elongated hole, arc groove, or multi-row mounting hole fine-tuning device on the mounting base 1 to ensure that the partitioned flexible pressure plate 6 can cover the central area and both side edge areas of the wrapping tape.

[0137] The mounting base 1 is preferably connected to the wrapping machine fixing parts by at least two fastening points, and more preferably by three or more fastening points, in order to avoid the mounting base 1 from swinging due to operating vibration.

[0138] In step S2, after the device is installed, the partitioned flexible pressure plate 6 is adjusted to a suitable height by the radial adjustment bracket 2 so that it can press down on the wrapping tape without putting excessive pressure on the wrapping tape.

[0139] During implementation, first loosen the locking mechanism of the radial adjustment bracket 2, then drive the adjusting screw, lead screw and nut pair, eccentric wheel, or electric push rod to gradually bring the partitioned flexible pressure plate 6 closer to the wrapping tape; when the central pressure zone 7 forms stable contact with the wrapping tape, and effective pressure can be detected in both edge pressure zones, stop the adjustment and lock the radial adjustment bracket 2. The single fine adjustment amount of radial adjustment is 0.05mm-0.5mm.

[0140] In step S3, the wrapping tape is moved from a free conveying state to a controlled bonding state.

[0141] During implementation, the wrapping tape is first passed through the guide mechanism of the wrapping machine, and then the wrapping tape is passed under the partitioned flexible pressure plate 6 by low-speed inching or manual traction. Subsequently, the central pressure zone 7 provides basic compression to the wrapping tape, and the two side edge pressure zones provide auxiliary compression to the edges of the wrapping tape.

[0142] Furthermore, under the basic compression state, the average contact pressure of the central compression zone 7 is 5kPa-60kPa; the normal average contact pressure of the edge compression zone should be lower than the preset pressure threshold of the deformable contact layer 11, so that the deformable contact layer 11 maintains a flexible surface contact state during normal operation.

[0143] In step S4, the force difference in the width direction of the wrapping tape is converted into a calculable deviation judgment signal.

[0144] During implementation, the control module 20 reads the pressure PL of the left edge pressure zone 8, the pressure PM of the middle pressure zone 7, and the pressure PR of the right edge pressure zone 9. It then combines this reading with the coordinates XL, XM, and XR of each pressure detection point along the width of the wrapping tape, and calculates the pressure distribution center Xc according to the formula Xc = (PL × XL + PM × XM + PR × XR) / (PL + PM + PR). When Xc exceeds the preset dead zone and the pressure in the corresponding side edge pressure zone exceeds the preset pressure threshold, the control module 20 determines that the wrapping tape is trending towards that side.

[0145] Furthermore, the pressure distribution center dead zone is set to 1%-5% of the wrapping tape width.

[0146] In step S5, the overpressure on the deviation side edge is converted into a correction effect.

[0147] During implementation, if PL exceeds the preset pressure threshold and Xc deviates to the left, the left deformable contact layer 11 is triggered and forms an oblique guide friction contact that causes the wrapping tape to return to the right; if PR exceeds the preset pressure threshold and Xc deviates to the right, the right deformable contact layer 11 is triggered and forms an oblique guide friction contact that causes the wrapping tape to return to the left.

[0148] Furthermore, the preset pressure threshold is 1.4 to 2.2 times the average contact pressure at the normal edge.

[0149] In step S6, while the deformable contact layer 11 generates a centering guide, the pressing position of the pressing areas on both sides of the edge is actively adjusted to rebalance the pressure distribution.

[0150] During implementation, if the pressure distribution center is biased to the left, the control module 20 drives the differential self-locking mechanism 19 to slightly retract the left edge pressure zone 8 and compensate by feeding the right edge pressure zone 9; if the pressure distribution center is biased to the right, the right edge pressure zone 9 is slightly retracted and the left edge pressure zone 8 is compensated by feeding. The single retraction or feed amount is 0.01mm-0.2mm. After each adjustment, the control module 20 recalculates the pressure distribution center until Xc enters the preset dead zone.

[0151] In step S7, the differential self-locking mechanism 19 is used to prevent the edge pressing area from freely retracting after the external power stops.

[0152] During implementation, the self-locking threaded pair, worm gear pair, wedge-shaped self-locking pair, or other self-locking structures in the differential self-locking mechanism 19 maintain the feed or retraction amount of the left and right edge pressure zones 9. When restarting the wrapping machine, the control module 20 first reads the pressure signal from the pressure detection component 15 to confirm that the pressure distribution center is within the allowable range before proceeding with normal wrapping. This reduces the risk of slack, offset, or sudden changes in overlap rate of the wrapping tape upon restarting after a shutdown.

[0153] In summary, this invention addresses the problem of lateral deviation that easily occurs when the wrapping tape enters the cable core bonding and cutting area. It establishes a stable installation and foundation clamping benchmark through the mounting base 1 and radial adjustment bracket 2. The partitioned flexible pressure plate 6 divides the force state of the wrapping tape in the width direction into central clamping and edge clamping. The deformable contact layer 11 forms an oblique guiding friction contact towards the center of the wrapping tape when there is excessive pressure at the edges. The pressure detection component 15 and control module 20 identify the deviation of the pressure distribution center, and the differential self-locking mechanism 19 retracts and compensates for the edge clamping areas while maintaining the adjusted position. The above structures and operating steps work together to transform the excessive pressure at the edge of the deviation side from a simple friction constraint hindering centering back into a detectable, adjustable, and maintainable centering correction condition. This suppresses the deviation trend before the final overlap position of the wrapping tape is formed, improving the overlap rate of the wrapping layer, edge flatness, and operational stability during restart.

[0154] Based on the preferred embodiments of the present invention described above, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A self-locking flexible clamping adjustment device for preventing package deviation, characterized in that, include: Mounting base; A radial adjustment bracket is mounted on the mounting base; A partitioned flexible pressure plate is disposed on the radial adjustment bracket and forms a central pressure zone and edge pressure zones on both sides of the central pressure zone along the width direction of the wrapping tape; A deformable contact layer is provided on the side of the edge pressing area facing the wrapping tape, which is used to form an oblique guiding friction contact towards the center of the wrapping tape when the corresponding edge pressing area is over-pressed; A pressure detection component is used to detect the clamping force in the central pressure zone and the edge pressure zone; A differential self-locking mechanism, in conjunction with the edge pressing zone drive, is used to adjust and maintain the pressing position of the edge pressing zones on both sides; and The control module is connected to the pressure detection component and the left and right differential self-locking mechanism, and is used to drive the left and right differential self-locking mechanism according to the pressure signal of the pressure detection component; The radial adjustment bracket is used to adjust the pressing position of the partitioned flexible pressure plate relative to the cable core.

2. The self-locking flexible clamping adjustment device for preventing package deviation according to claim 1, characterized in that: The radial adjustment bracket includes a fixed guide seat, a radial sliding seat, and a radial adjustment component; The fixed guide seat is connected to the mounting base and has a guide structure extending in the direction close to or away from the cable core wire. The radial sliding seat is slidably engaged with the fixed guide seat and carries the partitioned flexible pressure plate. The radial adjustment member is drivenly connected to the radial sliding seat and is used to drive the radial sliding seat to move along the guide structure.

3. The self-locking flexible clamping adjustment device for preventing package deviation according to claim 1, characterized in that: The partitioned flexible pressure plate is an integral elastic plate. The central pressure zone and the edge pressure zone are connected by thin-walled elastic connecting sections, slotted elastic bridges or flexible hinges to form an elastically deformable connection area.

4. The self-locking flexible clamping adjustment device for preventing package deviation according to claim 1, characterized in that: The partitioned flexible pressure plate is a split structure formed by combining a central pressure plate and two side edge pressure plates. The edge pressure areas are installed on both sides of the main pressure plate seat through elastic connecting pieces, pins, flexible pads or small stroke sliders.

5. The self-locking flexible clamping adjustment device for preventing package deviation according to claim 1, characterized in that: The central pressure zone has an arc-shaped base pressing surface on the side facing the wrapping tape, which is adapted to the outer circumferential surface of the cable core. The arc-shaped base pressing surface is a continuous arc surface or an approximate arc surface formed by the transition of multiple small planes.

6. The self-locking flexible clamping adjustment device for preventing package deviation according to claim 1, characterized in that: The deformable contact layer includes: an elastic base layer, a deformable cavity disposed within the elastic base layer or on the back side of the elastic base layer, and oblique guide friction texture disposed on the surface of the elastic base layer. The oblique guide friction textures disposed on the edge pressure areas on both sides are arranged in a mirror image, so that when the edge pressure area on either side is over-pressed, the corresponding deformable contact layer forms an oblique guide friction contact towards the center of the wrapping tape.

7. The self-locking flexible clamping adjustment device for preventing package deviation according to claim 1, characterized in that: The pressure detection assembly includes a central pressure detection element, a left-side pressure detection element, a right-side pressure detection element, and a signal conditioning unit; The central pressure detection element is used to detect the clamping force received by the central pressure zone; The left pressure detection element and the right pressure detection element are respectively used to detect the clamping force on the edge pressure areas on both sides; The signal conditioning unit is used to process the signals output by the middle pressure sensor, the left pressure sensor, and the right pressure sensor, and send them to the control module.

8. The self-locking flexible clamping adjustment device for preventing package deviation according to claim 1, characterized in that: The differential self-locking mechanism includes a left adjustment section and a right adjustment section; The left adjustment part is driven to engage with the edge pressing area on one side, and the right adjustment part is driven to engage with the edge pressing area on the other side; The left adjustment section and the right adjustment section operate independently. The differential self-locking mechanism is equipped with a self-locking threaded pair, a worm gear pair, a wedge-shaped self-locking pair, a pawl locking pair, or an electric actuator with power-off retention capability.

9. A method of using a self-locking flexible clamping adjustment device for preventing package deviation as described in any one of claims 1-8, characterized in that, Includes the following steps: S1. Install the mounting base near the wrapping head of the wrapping machine, the wrapping tape guide path, or the area where the wrapping tape and the cable core wire fit and cut into each other. S2. Adjust the radial position of the partitioned flexible pressure plate relative to the cable core wire by means of the radial adjustment bracket, so that the pressing center of the partitioned flexible pressure plate corresponds to the contact cutting area between the wrapping tape and the cable core wire; S3. The wrapping tape is brought into the fitting and cutting area, and a basic normal clamping force is applied to the wrapping tape by the partitioned flexible pressure plate. S4. The pressure detection component detects the clamping force of the central pressure zone and the two side edge pressure zones respectively, and the control module determines the pressure distribution state of the wrapping tape in the width direction based on the detection results. S5. When the wrapping tape deviates to one side and the corresponding edge pressure area is in an over-pressure state, the deformable contact layer on the corresponding side is transformed from a flexible surface contact state to an oblique guide friction contact towards the center of the wrapping tape. S6. The control module drives the differential self-locking mechanism to slightly retract the edge pressing area on the overpressure side and compensate the edge pressing area on the opposite side until the pressing force of the edge pressing areas on both sides tends to be balanced. S7. In the event of machine shutdown, roll change, power outage, gas outage, or emergency stop, the differential self-locking mechanism maintains the current adjustment position of the edge pressure zones on both sides.

10. The method of using the self-locking flexible clamping adjustment device for preventing package deviation according to claim 9, characterized in that: In step S3, the average contact pressure of the central pressure zone is 5kPa-60kPa, and the average contact pressure of the edge pressure zone during normal operation is lower than the pressure threshold corresponding to the transformation of the deformable contact layer from a flexible surface contact state to an oblique directional friction contact state.

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