Winding system and winding core state detection method

Abstract

The invention discloses a winding system and a winding core state detection method.The winding system comprises a rack, a transmission mechanism and a driving mechanism, the transmission mechanism comprises a transmission seat, a transmission shaft, a pushing and pressing mechanism and a positioning sleeve, the transmission seat is arranged on the rack, the transmission shaft is slidably and rotatably arranged on the transmission seat, and the positioning sleeve is arranged at one end of the transmission shaft; the pushing and pressing mechanism is arranged on the transmission base and can push the transmission shaft to slide in the axial direction. The driving mechanism is provided with an output shaft; a sliding fit structure is arranged between the end, away from the positioning sleeve, of the transmission shaft and the output shaft, and the transmission shaft and the output shaft can slide relatively and rotate synchronously through the sliding fit structure. The transmission mechanism further comprises a rotating sleeve, the rotating sleeve is rotatably arranged on the transmission seat through a bearing mechanism, the rotating sleeve is provided with a shaft hole in sliding fit with the transmission shaft, a positioning mechanism is arranged between the shaft hole and the transmission shaft, the rotating sleeve and the transmission shaft rotate synchronously, the winding core is driven, the winding function is achieved, and the mechanism is simple, stable and reliable.

Description

Technical Field

[0001] The present invention relates to the field of winding equipment, and in particular to a winding system and a winding core state detection method. Background Art

[0002] After the film material roll is produced, it usually needs to be rolled onto a roll core. The empty roll core is generally placed on the roll-up equipment manually or by a robot. The roll-up equipment includes a rotating mechanism, which is generally set on the frame by sliding rails. The rotating mechanism is driven to move so that the positioning piece at the end of the rotating shaft of the rotating mechanism is docked with the roll core to achieve the purpose of connecting and driving the roll core.

[0003] However, the existing rotating mechanism uses an overall translational method to move the docking, which is not only cumbersome in structure, but also has a large overall weight and large translational inertia, making it difficult to control the exact position when docking with the winding core, and it is very easy to collide with the winding core and damage the winding core. Although the existing technology also uses an improved structure of a clutch separation drive unit to reduce weight, after the clutch is configured, the transmission structure of the rotating mechanism is more complicated and the transmission accuracy is difficult to guarantee.

[0004] Moreover, when the positioning piece is docked with the winding core, in order to ensure the tightness of the docking between the positioning piece and the winding core, the positioning piece will exert a certain pressure on the winding core. When the pressure is too large, it is very easy to cause deformation of the winding core, such as arching in the center, resulting in deviation or uneven distribution of the film material winding. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a winding system.

[0006] The present invention also provides a method for detecting the state of a winding core.

[0007] The winding system according to the first aspect of the present invention comprises a frame, a transmission mechanism, and a driving mechanism, wherein the transmission mechanism comprises a transmission seat, a transmission shaft, a pushing mechanism and a positioning sleeve, wherein the transmission seat is arranged on the frame, the transmission shaft is slidably and rotatably arranged on the transmission seat, the positioning sleeve is arranged at one end of the transmission shaft, the pushing mechanism is arranged on the transmission seat and can push the transmission shaft to slide axially so that the positioning sleeve can be docked or separated from the winding core; the driving mechanism is detachably connected to the transmission seat, and the driving mechanism is provided with an output shaft; a sliding matching structure is arranged between one end of the transmission shaft away from the positioning sleeve and the output shaft, and the sliding matching structure can make the transmission shaft and the output shaft slide relative to each other and rotate synchronously; the transmission mechanism also comprises a rotating sleeve, which is rotatably arranged on the transmission seat through a bearing mechanism, and the rotating sleeve is provided with an axial hole that can slidably match with the transmission shaft, and a positioning mechanism is arranged between the axial hole and the transmission shaft so that the rotating sleeve and the transmission shaft rotate synchronously.

[0008] The winding system according to the embodiment of the present invention has at least the following beneficial effects: since the output shaft of the driving mechanism is connected to the transmission shaft through a sliding fit structure, when the pushing mechanism pushes the transmission shaft until the positioning sleeve is connected to the winding core, the driving mechanism can still maintain normal driving of the transmission shaft, thereby realizing rotational driving of the winding core and satisfying the winding function. The structure is simple, stable and reliable, and the transmission shaft is set by the rotating sleeve, and the rotating sleeve is rotatably connected to the transmission seat through the bearing mechanism, thereby improving the rotation accuracy of the transmission shaft, reducing the occurrence of yaw, eccentricity, etc., thereby improving the winding effect of the winding core.

[0009] According to some embodiments of the present invention, the sliding fit structure includes an output shaft key strip arranged on the output shaft, a connecting hole into which the output shaft can be inserted is provided at one end of the transmission shaft away from the positioning sleeve, and the inner wall of the connecting hole is provided with a connecting key groove that slidingly fits with the output shaft key strip.

[0010] According to some embodiments of the present invention, the positioning mechanism includes a transmission shaft key strip arranged on the transmission shaft, and the inner wall of the shaft hole is provided with a transmission key groove that slidably cooperates with the transmission shaft key strip.

[0011] According to some embodiments of the present invention, the pushing mechanism is a clamping cylinder, and a piston rod of the clamping cylinder is connected to the transmission shaft via a connecting assembly.

[0012] According to some embodiments of the present invention, the winding system also includes a core positioning assembly, the core positioning assembly includes an adjustment plate movably arranged on the frame, the adjustment plate is provided with at least one group of support wheel groups, each group of the support wheel groups includes two rollers distributed at intervals, the core can be placed on the two rollers, and an adjustment mechanism is provided between the adjustment plate and the frame.

[0013] According to some embodiments of the present invention, the frame is extended with an adjustment seat, the adjustment plate is provided with a waist-shaped hole extending in the up and down directions, and the adjustment mechanism includes a locking screw, which passes through the waist-shaped hole and is connected to the adjustment seat through threaded engagement.

[0014] According to some embodiments of the present invention, the adjustment seat is provided with an extension portion extending to the bottom of the adjustment plate, the extension portion is provided with an adjustment screw through threaded cooperation, and the adjustment screw is pressed against the adjustment seat.

[0015] According to some embodiments of the present invention, the positioning sleeve includes a tapered portion capable of being inserted into an inner hole of an end portion of the winding core and a shoulder portion capable of abutting against an end portion of the winding core.

[0016] A method for detecting a winding core state according to an embodiment of a second aspect of the present invention comprises: a winding system including any embodiment of the first aspect of the present invention;

[0017] A first pressure sensor is arranged between the transmission shaft and the positioning sleeve, and the pressure value measured by the first pressure sensor is N;

[0018] The end surface of the shaft shoulder portion corresponding to the winding core is provided with a second pressure sensors, a≥2, the a second pressure sensors are evenly spaced along the circumference of the shaft shoulder portion, and the pressure values ​​measured by the a second pressure sensors are respectively N1, N2...N a ;

[0019] The average pressure acting on the second pressure sensor is set to be N0,

[0020] N0=N / a;

[0021] The difference between the pressure value detected by the second pressure sensor and the average pressure is ΔN k ;

[0022] ΔN k =N k -N0, k = 1, 2, ... a;

[0023] The qualified threshold value of the core pressure uniformity is set to Z, Z=0.001 to 0.01;

[0024] like The winding core meets the winding requirements;

[0025] like The winding core does not meet the winding requirements.

[0026] The winding core status detection method according to the embodiment of the present invention has at least the following beneficial effects: the working status of the winding core can be detected more accurately.

[0027] A method for detecting a winding core state according to an embodiment of a third aspect of the present invention includes: a winding system including any one of the embodiments of the first aspect of the present invention;

[0028] A first pressure sensor is arranged between the transmission shaft and the positioning sleeve, and the pressure value measured by the first pressure sensor is N;

[0029] The end surface of the shaft shoulder portion corresponding to the winding core is provided with a second pressure sensor, a is an even number, and the pressure values ​​measured by the two opposite second pressure sensors are set to be N respectively. b and N c ,

[0030] The average pressure acting on the second pressure sensor is set to be N0,

[0031] N0=N / a;

[0032] The qualified threshold value of the core pressure uniformity is set to Z, Z=0.001 to 0.01;

[0033] When N b >N0,N c <N0, and or , the winding core does not meet the winding requirements.

[0034] The winding core status detection method according to the embodiment of the present invention has at least the following beneficial effects: the working status of the winding core can be detected more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0036] Figure 1 It is a schematic cross-sectional structure diagram of a winding system according to an embodiment of the present invention;

[0037] Figure 2 This is a schematic diagram of the structure of the transmission mechanism and the driving mechanism after being assembled according to an embodiment of the present invention;

[0038] Figure 3 This is a second structural schematic diagram of the transmission mechanism and the driving mechanism of the embodiment of the present invention after being assembled;

[0039] Figure 4 It is a schematic diagram of a partial cross-sectional structure of the transmission mechanism and the driving mechanism after being assembled according to an embodiment of the present invention;

[0040] Figure 5 It is a structural schematic diagram of a transmission mechanism (without a driving mechanism installed) of an embodiment of the present invention;

[0041] Figure 6 It is a partial cross-sectional structural schematic diagram of a transmission mechanism (without a driving mechanism installed) of an embodiment of the present invention;

[0042] Figure 7 It is a cross-sectional schematic diagram of the installation position of the support wheel assembly according to an embodiment of the present invention;

[0043] Figure 8 FIG. 4 is a diagram showing a change in pressure over time (Nt) of two third pressure sensors according to an embodiment of the present invention.

[0044] Reference numerals:

[0045] Transmission mechanism 100, transmission seat 110, transmission shaft 120, connection hole 121, connection keyway 122, transmission shaft key strip 123, pushing mechanism 130, connection assembly 131, positioning sleeve 140, tapered portion 141, shaft shoulder portion 142, rotating sleeve 150, transmission keyway 152;

[0046] Driving mechanism 200, output shaft 210, output shaft key strip 211;

[0047] The winding core positioning assembly 400, the adjusting plate 410, the waist-shaped hole 411, the slide groove 412, the spring 413, the roller 420, the rotating shaft 421, the locking screw 431, and the adjusting screw 432;

[0048] A first pressure sensor 310, a second pressure sensor 320, and a third pressure sensor 330;

[0049] The winding core 800 , the frame 900 , the adjustment seat 910 , the extension portion 911 , and the guide groove 912 . DETAILED DESCRIPTION

[0050] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0051] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0052] In the description of the present invention, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0053] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0054] Reference below Figures 1 to 8 A winding system according to an embodiment of the present invention is described.

[0055] like Figures 1 to 4 As shown, the winding system according to the embodiment of the present invention includes a frame 900, a transmission mechanism 100, and a driving mechanism 200. The transmission mechanism 100 includes a transmission seat 110, a transmission shaft 120, a pushing mechanism 130, and a positioning sleeve 140. The transmission seat 110 is arranged on the frame 900, the transmission shaft 120 is slidably and rotatably arranged on the transmission seat 110, the positioning sleeve 140 is arranged at one end of the transmission shaft 120, and the pushing mechanism 130 is arranged on the transmission seat 110 and can push the transmission shaft 120 to slide along the axial direction so that the positioning sleeve 140 can be connected to or separated from the winding core 800; the driving mechanism 200 can be detachably connected to the transmission seat 110. The movable seat 110 and the driving mechanism 200 are provided with an output shaft 210; a sliding fit structure is arranged between the end of the transmission shaft 120 away from the positioning sleeve 140 and the output shaft 210, and the sliding fit structure enables the transmission shaft 120 and the output shaft 210 to slide relative to each other and rotate synchronously; the transmission mechanism 100 also includes a rotating sleeve 150, which is rotatably arranged on the transmission seat 110 through a bearing mechanism, and the rotating sleeve 150 is provided with an axial hole that can slide with the transmission shaft 120, and a positioning mechanism is arranged between the axial hole and the transmission shaft 120, so that the rotating sleeve 150 and the transmission shaft 120 can rotate synchronously.

[0056] Since the output shaft 210 of the driving mechanism 200 is connected to the transmission shaft 120 through a sliding fit structure, when the pushing mechanism 130 pushes the transmission shaft 120 to the positioning sleeve 140 and docks with the winding core 800, the driving mechanism 200 can still maintain normal driving of the transmission shaft 120, thereby realizing rotational driving of the winding core 800 and satisfying the winding function. The structure is simple, stable and reliable, and the transmission shaft 120 is set by the rotating sleeve 150, and the rotating sleeve 150 is rotatably connected to the transmission seat 110 through the bearing mechanism, thereby improving the rotation accuracy of the transmission shaft 120, reducing the occurrence of yaw, eccentricity, etc., thereby improving the winding effect of the winding core 800.

[0057] Specifically, during operation, the winding core 800 moves to the set position, and the pushing mechanism 130 pushes the transmission shaft 120 to move, so that the positioning sleeve 140 is docked with the winding core 800. The driving mechanism 200 can directly drive the transmission shaft 120 through the output shaft 210, thereby driving the winding core 800 to rotate. After the winding of the winding core 800 is completed, the pushing mechanism 130 pulls the transmission shaft 120 to move in the opposite direction, thereby releasing the winding core 800 and completing the winding operation of the film material.

[0058] In some embodiments of the present invention, the drive mechanism 200 can be detachably connected to the transmission seat 110. In actual applications, the drive mechanism 200 can be configured for the transmission mechanism 100 as needed to meet different usage requirements. At the same time, the drive mechanism 200 can be separated to facilitate maintenance of the transmission mechanism 100.

[0059] like Figure 1 As shown, in some embodiments of the present invention, the winding system includes two sets of transmission mechanisms 100, which are relatively distributed on both sides of the frame 900 to dock and fix the two ends of the winding core 800. One set of the transmission mechanisms 100 is configured with a driving mechanism 200 to achieve single-end driving of the winding core 800 to meet the winding requirements.

[0060] It can be understood that in some embodiments of the present invention, both sets of transmission mechanisms 100 can be equipped with a driving mechanism 200, so as to achieve driving of both ends of the winding core 800 and meet the requirements of winding larger film materials.

[0061] like Figure 1 As shown, in some embodiments of the present invention, the driving mechanism 200 is a motor driving mechanism, including a motor body and a reducer, the output shaft 210 is provided in the reducer, and the reducer is mounted to the transmission seat 110 by a screw mechanism.

[0062] In some embodiments of the present invention, the reducer and / or the transmission seat 110 is provided with bearings corresponding to the output shaft 210 to improve the rotation accuracy of the output shaft 210 .

[0063] like Figure 4 , Figure 5 , Figure 6 As shown, in some embodiments of the present invention, the sliding fit structure includes an output shaft key strip 211 arranged on the output shaft 210, and a connecting hole 121 for inserting the output shaft 210 is arranged at one end of the transmission shaft 120 away from the positioning sleeve 140, and the inner wall of the connecting hole 121 is provided with a connecting key groove 122 that slides with the output shaft key strip 211, thereby meeting the sliding connection requirements between the output shaft 210 and the transmission shaft 120, and can rotate synchronously.

[0064] It can be understood that in some embodiments of the present invention, the output shaft 210 can also be set as a flower shaft structure, and the connecting hole 121 at the end of the transmission shaft 120 can be set as a corresponding flower shaft groove, which can also meet the requirements of being slidable and synchronously rotatable.

[0065] Of course, in the specific implementation process, the output shaft 210 can also be set as a long axis with a non-circular cross-section, and the connecting hole 121 is set to correspond thereto, which can also meet the requirements of being slidable and synchronously rotatable.

[0066] like Figure 4 , Figure 6 As shown, in some embodiments of the present invention, the positioning mechanism includes a transmission shaft key bar 123 arranged on the transmission shaft 120, and the inner wall of the shaft hole is provided with a transmission key groove 152 that slides with the transmission shaft key bar 123, thereby satisfying the sliding connection requirements between the rotating sleeve 150 and the transmission shaft 120, and can rotate synchronously.

[0067] It can be understood that in some embodiments of the present invention, the transmission shaft 120 can also be set as a flower shaft structure, and the shaft hole can be set as a corresponding flower shaft slide groove, which can also meet the requirements of being slidable and synchronously rotatable.

[0068] Of course, in the specific implementation process, the output shaft transmission shaft 120 can also be set as a long shaft with a non-circular cross-section, and the shaft hole is set to correspond thereto, which can also meet the requirements of being slidable and synchronously rotatable.

[0069] like Figure 2 , Figure 3 , Figure 5 As shown, in some embodiments of the present invention, the pushing mechanism 130 is a clamping cylinder, the piston rod of the clamping cylinder is connected to the drive shaft 120 through a connecting assembly 131, and the clamping cylinder has a self-locking clamping function, which can enable the positioning sleeve 140 to maintain stably docked with the winding core 800 when the drive shaft 120 is pushed out, thereby improving the reliability of the drive.

[0070] In some embodiments of the present invention, the connecting component 131 is connected to the transmission shaft 120 through an angular contact ball bearing, so that the connecting component 131 can achieve axial pushing and pulling of the transmission shaft 120, and the connecting component 131 can be rotationally separated from the transmission shaft 120. The connecting component 131 does not rotate with the transmission shaft 120, and at the same time, the friction resistance when the transmission shaft 120 rotates can be reduced.

[0071] like Figure 2 , Figure 3 , Figure 5 As shown, in some embodiments of the present invention, the winding system also includes a core positioning assembly 400, and the core positioning assembly 400 includes an adjustment plate 410 movably arranged on the frame 900, and the adjustment plate 410 is provided with at least one group of supporting wheel groups, and each group of supporting wheel groups includes two rollers 420 distributed at intervals, and the core 800 can be placed on the two rollers 420. An adjustment mechanism is provided between the adjustment plate 410 and the frame 900, and the core positioning assembly 400 can be temporarily placed in a position corresponding to the positioning sleeve 140 to facilitate the docking of the positioning sleeve 140, and the height of the supporting wheel group can be adjusted by the adjustment mechanism to meet the installation of cores 800 of different specifications.

[0072] Of course, in the specific implementation process, the core positioning component 400 may not be configured, and the precise delivery of the core 800 can be achieved through external manipulators and other equipment.

[0073] like Figure 1 As shown, in some embodiments of the present invention, the winding core 800 is provided with a guide groove 912 corresponding to the supporting wheel group, and the roller 420 of the supporting wheel group can be inserted into the guide groove 912 to limit the axial movement of the winding core 800, play an axial positioning role in the rotation of the winding core 800, and reduce the occurrence of axial movement of the winding core 800.

[0074] like Figure 2 As shown, in some embodiments of the present invention, the frame 900 is extended with an adjustment seat 910, the adjustment plate 410 is provided with a waist-shaped hole 411 extending in the up and down directions, and the adjustment mechanism includes a locking screw 431. The locking screw 431 passes through the waist-shaped hole 411 and is connected to the adjustment seat 910 by threaded fitting. By loosening and tightening the locking screw 431, the height of the adjustment plate 410 can be adjusted, thereby adjusting the height of the roller 420.

[0075] It can be understood that in some embodiments of the present invention, the adjustment plate 410 and the adjustment seat 910 can also be connected by a slide rail mechanism to improve the movement accuracy of the adjustment plate 410 and the supporting wheel group to ensure the supporting effect on the winding core 800.

[0076] like Figure 2As shown, in some embodiments of the present invention, the adjustment seat 910 is provided with an extension portion 911 extending to the bottom of the adjustment plate 410, and the extension portion 911 is provided with an adjustment screw 432 through threaded cooperation, and the adjustment screw 432 is pressed against the adjustment seat 910. By rotating the adjustment screw 432, the height of the adjustment plate 410 can be adjusted, and the adjustment is convenient.

[0077] Specifically, when adjustment is needed, slightly loosen the locking screw 431 and maintain a certain locking force of the locking screw 431 to prevent the adjustment plate 410 from sliding directly to the lowest point. By rotating the adjustment screw 432, the pressure adjustment plate 410 is slowly moved upward, thereby achieving adjustment of the height position of the adjustment plate 410, and the adjustment is stable and accurate.

[0078] Of course, in the specific implementation process, the adjusting screw 432 may not be configured. After loosening the locking screw 431, the height of the adjusting plate 410 is adjusted according to the set measuring tool and then locked, which can also meet the requirement of adjusting the height of the supporting wheel group.

[0079] like Figure 2 , Figure 4 , Figure 6 As shown, in some embodiments of the present invention, the positioning sleeve 140 includes a tapered portion 141 that can be inserted into the inner hole of the end of the core 800 and a shoulder portion 142 that can abut against the end of the core 800. By providing the tapered portion 141, it is convenient to guide the head of the positioning sleeve 140 to be inserted into the inner hole of the core 800, thereby realizing the docking of the winding system and the core 800.

[0080] In some embodiments of the present invention, the positioning sleeve 140 is detachably mounted to the end of the transmission shaft 120 to facilitate replacement of positioning sleeves 140 of different specifications to meet the docking application of winding cores 800 of different specifications.

[0081] In some embodiments of the present invention, the outer diameter of the larger end of the conical portion 141 is less than or equal to the inner diameter of the docking inner hole of the winding core 800, so that the larger end of the conical portion 141 will not form a tight fit with the winding core 800, thereby facilitating the positioning sleeve 140 to withdraw from the docking inner hole of the winding core 800 to facilitate the removal of the winding core 91.

[0082] Specifically, the outer diameter of the larger end of the tapered portion 141 is preferably 0.99 times to 1 times the inner diameter of the docking inner hole of the winding core 800 , so as to reduce the radial deviation of the winding core 800 .

[0083] In some embodiments of the present invention, the outer diameter of the larger end of the tapered portion 141 is larger than the inner diameter of the docking inner hole of the core 800, so that the positioning sleeve 140 can form a tight fit with the core 800, thereby improving the reliability and accuracy of docking. The core 800 is provided with a guide groove 912 corresponding to the supporting wheel group, and the roller 420 of the supporting wheel group can be inserted into the guide groove 912 to limit the axial movement of the core 800. When the positioning sleeve 140 withdraws from the core 800, the axial position of the core 800 can be limited, thereby facilitating the tapered portion 141 to be pulled out of the docking inner hole of the core 800.

[0084] Specifically, the outer diameter of the larger end of the tapered portion 141 is preferably 1.01 to 1.05 times the inner diameter of the docking inner hole of the winding core 800 , so as to reduce the occurrence of excessive squeezing of the docking inner hole of the winding core 800 .

[0085] A method for detecting a winding core state according to an embodiment of a second aspect of the present invention comprises a winding system according to any embodiment of the first aspect of the present invention;

[0086] A first pressure sensor 310 is disposed between the transmission shaft 120 and the positioning sleeve 140 , and the pressure value measured by the first pressure sensor 310 is N;

[0087] The end surface of the shaft shoulder 142 corresponding to the winding core 800 is provided with a second pressure sensor 320, a≥2, the a second pressure sensors 320 are evenly spaced along the circumference of the shaft shoulder 142, and the pressure values ​​measured by the a second pressure sensors 320 are N1, N2, ..., N respectively. a ;

[0088] The average pressure acting on the second pressure sensor 320 is set to N0,

[0089] N0=N / a;

[0090] The difference between the pressure value detected by the second pressure sensor and the average pressure is ΔN k ;

[0091] ΔN k =N k -N0, k = 1, 2, ... a;

[0092] The qualified threshold value of the compression uniformity of the winding core 800 is set to Z, Z = 0.001 to 0.01;

[0093] like The core 800 meets the winding requirements;

[0094] like The core 800 does not meet the winding requirements;

[0095] Specifically, when When the pressure value is Nk The pressure at the position corresponding to the second pressure sensor 320 is relatively large and is greater than the set qualified threshold. Since N=N1+N2……+N a , when N k When the value is too large, the corresponding pressure on the other second pressure sensors 320 is relatively small, and a pressure offset occurs between the core 800 and the positioning sleeve 140. The end face of the core 800 and the shoulder portion 142 are non-uniformly in contact with each other. It can be inferred that the core 800 is over-squeezed and over-arched. If a winding operation is performed at this time, it is very likely to cause unqualified winding. Therefore, it is determined that the core 800 does not meet the winding requirements, otherwise it is not.

[0096] In the specific implementation process, the length of the core 800 is relatively long, which makes it inconvenient to detect the offset of the center (affecting the winding), and thus it is difficult to determine the arching condition of the core 800. The above method determines the arching deformation condition of the core 800 by the pressure condition at the end of the core 800, which does not affect the normal winding of the core 800 and has high practicality.

[0097] In the specific implementation process, in an ideal state, the winding core 800 does not arch, and the pressure-bearing surface of the shoulder portion 142 is uniformly compressed by ΔN. k Close to 0, Close to 0, once the winding core 800 is arched, the end faces at both ends will deviate from the vertical direction, and the pressure-bearing surface of the shoulder portion 142 is a vertical surface, which leads to different pressures of the second pressure sensor 320 at different positions of the shoulder portion 142. Therefore, by calculating ΔN k and The value can be used to determine the arching condition of the winding core 800, thereby satisfying the detection of the working state of the winding core 800.

[0098] In some embodiments of the present invention, the winding system is configured with a control module, and the first pressure sensor 310 and the second pressure sensor 320 are connected to the control module. The control module records the qualified threshold Z, and feeds back the numerical values ​​of the first pressure sensor 310 and the second pressure sensor 320 to the control module. The control module can calculate whether the core 800 meets the winding requirements according to the above method, and remind the operator through a display, an alarm, etc.

[0099] In some embodiments of the present invention, the qualified threshold value Z is used to feedback the degree to which the core 800 is squeezed and arched. The qualified threshold value Z is generally an empirical value, which is set according to the different specifications of the core 800 and recorded in the control module of the winding system, and combined with the above-mentioned detection method to determine whether the core 800 meets the winding requirements.

[0100] Specifically, when The winding core 800 is determined to have no arching or the arching is not sufficient to affect the normal winding of the winding core 800, so it can be determined that the winding core 800 meets the winding requirements.

[0101] A method for detecting a winding core state according to an embodiment of a third aspect of the present invention includes a winding system according to any embodiment of the first aspect of the present invention;

[0102] A first pressure sensor 310 is disposed between the transmission shaft 120 and the positioning sleeve 140 , and the pressure value measured by the first pressure sensor 310 is N;

[0103] The end surface of the shoulder portion 142 corresponding to the winding core 800 is provided with a second pressure sensor 320, a is an even number, and the pressure values ​​measured by the two opposite second pressure sensors 320 are set to be N and N respectively. b and N c ,

[0104] The average pressure acting on the second pressure sensor 320 is set to N0,

[0105] N0=N / a;

[0106] The qualified threshold value of the compression uniformity of the winding core 800 is set to Z, Z = 0.001 to 0.01;

[0107] When N b >N0,N c <N0, and or , the core 800 does not meet the winding requirements.

[0108] N b and N c is the pressure value measured by the two second pressure sensors 320 that are relatively distributed. When the winding core 800 is arched and its end surface deviates from the vertical plane, the pressure value N measured by the two second pressure sensors 320 at the corresponding positions b and N c There should be one large and one small, and N b >N0,N c <N0, if both or That is, if the pressure deviation is greater than the set qualified threshold value Z, it can be determined that the winding core 800 is over-bulged due to pressure, and the winding core 800 does not meet the winding requirements.

[0109] Compared with the winding core state detection method of the second embodiment of the present invention, the winding core state detection method of the third embodiment of the present invention adds the pressure value N measured by the two second pressure sensors 320 distributed relatively. b 、N c Compare with the average pressure N0 to further improve the accuracy of the judgment.

[0110] During the specific implementation process, due to assembly errors, processing errors or sensor detection accuracy and other issues, a pressure sensor may occasionally detect a large pressure deviation. In this embodiment, by comparing the pressure sensors in relative directions, it can better reflect the situation where the core 800 is arched and the end face deviates from the vertical plane, so it has a higher judgment accuracy.

[0111] Reference Figure 7 , according to the winding core state detection method of the fourth aspect of the present invention, comprising the winding system of any embodiment of the first aspect of the present invention;

[0112] The adjustment plate 410 is provided with a slide groove 412, and the roller 420 is set on the adjustment plate 410 through a rotating shaft 421. The rotating shaft 421 and the slide groove 412 can be slidably matched. A spring 413 is provided in the slide groove 412, and the spring 413 can apply an elastic force toward the core 800 to the rotating shaft 421. The inner wall of one end of the slide groove 412 is provided with a third pressure sensor 330, one end of the spring 413 is pressed against the rotating shaft 421, and the other end of the spring 413 is pressed against the third pressure sensor 330. The arching and bending of the core 800 is judged by detecting the pressure change of the third pressure sensor 330, thereby satisfying the detection of the core state.

[0113] Specifically, under normal circumstances, the roller 420 is in contact with the core 800, the roller 420 is evenly pressurized, and the pressure detection value of the third pressure sensor 330 is relatively stable. When the core 800 is arched, bent or unbalanced, the pressure detection value of the third pressure sensor 330 changes in a waveform curve. Therefore, the state of the core can be judged based on the change in the pressure detection value of the third pressure sensor 330.

[0114] In some embodiments of the present invention, the rotating shaft 421 is provided with a square portion, and the slide groove 412 can slidably cooperate with the square portion, which can meet the sliding performance of the rotating shaft 421 and limit the rotation of the rotating shaft 421.

[0115] like Figure 7 , Figure 8 As shown, in some embodiments of the present invention, the two rollers 420 of the supporting wheel assembly are both equipped with a spring 413 and a third pressure sensor 330, and the pressure-time (Nt) change lines of the two third pressure sensors 330 are recorded;

[0116] Assume that the change line of one of the third pressure sensors 330 is x, the change line of the other third pressure sensor 330 is y, the arc angle of the center of the two rollers 420 relative to the axis of the winding core 800 is a, and record the peak positions of the change line x and the change line y;

[0117] The rotation speed of the winding core 800 is set to n (in revolutions per second, r / s);

[0118] Filter the change cycle in change line x and change line y The crest of the wave;

[0119] When the time difference Δt between the peak of the above-mentioned change line x and the peak of the change line y satisfies:

[0120]

[0121] It is determined that the winding core 800 is arched or unbalanced.

[0122] Specifically, in actual use, due to assembly errors, process errors and other issues, the value of the pressure sensor may also change, but such changes have certain randomness and uncertainty, and the pressure change caused by the arching or offset of the core 800 is periodic, and the period corresponds to the rotation speed n of the core 800. Therefore, in this embodiment, the period is first changed to The peaks of the change line x are screened out to remove the clutter. At the same time, the time difference Δt between the set point and the two rollers 420 when the winding core 800 rotates is calculated. If the time difference between the peak of the change line x screened above and the peak of the change line y meets the above time difference Δt, it can be further determined that the pressure change occurs with the rotation law of the winding core 800, and then the pressure change that occurs occasionally at one of the rollers and changes periodically can be further excluded. The peak of the wave can be detected to improve the accuracy of judging the working state of the winding core 800.

[0123] In some embodiments of the present invention, the two rollers 420 of the supporting wheel assembly are both equipped with a spring 413 and a third pressure sensor 330, and the springs 413 corresponding to the two rollers 420 have different specifications, so that the pressures acting on the two third pressure sensors 330 are different, such as Figure 8 As shown, the change line x and the change line y have a certain difference in the N direction, thereby improving the accuracy of detection.

[0124] Specifically, if the specifications of the spring 413 are consistent, the detection values ​​of the two third pressure sensors 330 are roughly the same. Once the set external interference (such as assembly errors, changes in the working environment, etc.) interferes with the value range, the detection values ​​of the two third pressure sensors 330 will be invalid, making the core status detection invalid.

[0125] In some embodiments of the present invention, the winding system is configured with a control module, and the third pressure sensor 330 is connected to the control module. The control module analyzes the change line x and the change line y to determine the working status of the winding core 800, and reminds the operator through a display, an alarm, etc.

[0126] Of course, the invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A winding system, characterized in that: include: Rack(900); A transmission mechanism (100), the transmission mechanism (100) comprising a transmission seat (110), a transmission shaft (120), a pushing mechanism (130) and a positioning sleeve (140), the transmission seat (110) being arranged on the frame (900), the transmission shaft (120) being slidably and rotatably arranged on the transmission seat (110), the positioning sleeve (140) being arranged at one end of the transmission shaft (120), the pushing mechanism (130) being arranged on the transmission seat (110) and being capable of pushing the transmission shaft (120) to slide along the axial direction, so that the positioning sleeve (140) and the winding core (800) can be docked or separated; A driving mechanism (200), the driving mechanism (200) being detachably connected to the transmission seat (110), and the driving mechanism (200) being provided with an output shaft (210); A sliding fit structure is provided between one end of the transmission shaft (120) away from the positioning sleeve (140) and the output shaft (210), and the sliding fit structure enables the transmission shaft (120) and the output shaft (210) to slide relative to each other and rotate synchronously; The transmission mechanism (100) further comprises a rotating sleeve (150), wherein the rotating sleeve (150) is rotatably disposed on the transmission seat (110) via a bearing mechanism, and the rotating sleeve (150) is provided with an axial hole slidably matched with the transmission shaft (120), and a positioning mechanism is provided between the axial hole and the transmission shaft (120) so that the rotating sleeve (150) and the transmission shaft (120) rotate synchronously.

2. The winding system according to claim 1, characterized in that: The sliding fit structure comprises an output shaft key strip (211) arranged on the output shaft (210); a connecting hole (121) capable of inserting the output shaft (210) is arranged at one end of the transmission shaft (120) away from the positioning sleeve (140); and a connecting key groove (122) slidingly fitted with the output shaft key strip (211) is arranged on the inner wall of the connecting hole (121).

3. The winding system according to claim 1, characterized in that: The positioning mechanism comprises a transmission shaft key strip (123) arranged on the transmission shaft (120), and the inner wall of the shaft hole is provided with a transmission key groove (152) which is slidably matched with the transmission shaft key strip (123).

4. The winding system according to claim 1, characterized in that: The pushing mechanism (130) is a clamping cylinder, and the piston rod of the clamping cylinder is connected to the transmission shaft (120) through a connecting assembly (131).

5. The winding system according to claim 1, characterized in that: The winding system further comprises a core positioning assembly (400), wherein the core positioning assembly (400) comprises an adjustment plate (410) movably arranged on the frame (900), wherein the adjustment plate (410) is provided with at least one group of supporting wheel groups, wherein each group of supporting wheel groups comprises two rollers (420) distributed at intervals, and the core (800) can be placed on the two rollers (420), and an adjustment mechanism is arranged between the adjustment plate (410) and the frame (900).

6. The winding system according to claim 5, characterized in that: The frame (900) is extended with an adjustment seat (910), the adjustment plate (410) is provided with a waist-shaped hole (411) extending in the up-down direction, and the adjustment mechanism comprises a locking screw (431), and the locking screw (431) passes through the waist-shaped hole (411) and is connected to the adjustment seat (910) by threaded engagement.

7. The winding system according to claim 6, characterized in that: The adjustment seat (910) is provided with an extension portion (911) extending to the bottom of the adjustment plate (410), and the extension portion (911) is provided with an adjustment screw (432) through threaded engagement, and the adjustment screw (432) is pressed against the adjustment seat (910).

8. The winding system according to any one of claims 1 to 7, characterized in that: The positioning sleeve (140) comprises a tapered portion (141) that can be inserted into the inner hole of the end of the winding core (800) and a shoulder portion (142) that can abut against the end of the winding core (800).

9. A method for detecting a winding core state, characterized in that: include: The winding system according to claim 8; A first pressure sensor (310) is provided between the transmission shaft (120) and the positioning sleeve (140), and a pressure value measured by the first pressure sensor (310) is N; The end surface of the shaft shoulder (142) corresponding to the winding core (800) is provided with a second pressure sensor (320), a≥2, the a second pressure sensors (320) are evenly spaced along the circumference of the shaft shoulder (142), and the pressure values ​​measured by the a second pressure sensors (320) are respectively N1, N2, ..., N a ; The average pressure acting on the second pressure sensor (320) is set to be N0, where N0=N / a; The difference between the pressure value detected by the second pressure sensor and the average pressure is ΔN k ; ΔN k =N k -N0,k=1、2……a; The qualified threshold value of the compression uniformity of the winding core (800) is set to Z, where Z=0.001 to 0.01; like The winding core (800) meets the winding requirements; like The winding core (800) does not meet the winding requirements.

10. A method for detecting a winding core state, characterized in that: include: The winding system according to claim 8; A first pressure sensor (310) is provided between the transmission shaft (120) and the positioning sleeve (140), and a pressure value measured by the first pressure sensor (310) is N; The end surface of the shaft shoulder (142) corresponding to the winding core (800) is provided with a second pressure sensor (320), a is an even number, and the pressure values ​​measured by two opposite second pressure sensors (320) are respectively N b and N c , The average pressure acting on the second pressure sensor (320) is set to be N0, where N0=N / a; The qualified threshold value of the compression uniformity of the winding core (800) is set to Z, where Z=0.001 to 0.01; When N b >N0,N c <N0, and or , the winding core (800) does not meet the winding requirements.

Images