Manual tip cone expansion material rolling device and material rolling equipment

Abstract

The utility model discloses a manual tip cone expansion coiling device and coiling equipment, and relates to the technical field of coiling equipment, the manual tip cone expansion coiling device comprises a rack, a tip cone group, a pushing structure and a supporting structure; according to the technical scheme, the pushing structure and the supporting structure are oppositely arranged on the machine frame, the pushing structure is rotationally connected with the tip cone set, when the roll core needs to be installed, one end of the roll core abuts against the supporting structure, the pushing structure pushes the tip cone set so that the tip cone set can abut against the other end of the roll core, normal rotation of the roll core is guaranteed, and meanwhile the roll core can be installed conveniently. The installation effect of the roll core is improved, when the roll core is disassembled, the pushing structure drives the tip cone set to move so that the tip cone set can be separated from the roll core, and the roll core can be disassembled, so that the roll core is convenient to disassemble and assemble, the disassembling and assembling efficiency is improved, and meanwhile the manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a material winding equipment technical field, especially a kind of manual top cone expansion material winding device and material winding equipment. BACKGROUND

[0002] Now the general material winding expansion operation in market is generally realized by automatic expansion structure, and automatic expansion structure is mostly aimed at the fixing of large material winding under the condition that manual handling is inconvenient, to ensure the efficiency and stability of large material winding.

[0003] When expanding for small material winding or material winding on laboratory equipment, the use of automatic expansion structure is relatively complex, so that the disassembly and assembly of material winding need to be operated according to automatic program, which is not conducive to the efficiency of material winding disassembly and assembly, and the cost of automatic expansion structure is high. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a kind of manual top cone expansion material winding device and material winding equipment, which can reduce cost and improve the expansion efficiency of material winding when expanding for small material winding.

[0005] To achieve the above purpose, the manual top cone expansion material winding device provided by the utility model comprises:

[0006] Frame, the frame is equipped with winding core;

[0007] Top cone group, the top cone group is in contact with one end of the winding core;

[0008] Pushing structure, the pushing structure is arranged on the frame, and is rotationally connected with the top cone group;

[0009] Supporting structure, the supporting structure is arranged on the frame, and is rotationally connected with one end of the winding core.

[0010] In an embodiment, the pushing structure comprises a lead screw seat and a lead screw part, the lead screw seat is fixedly arranged on the frame, and the lead screw part is arranged on the lead screw seat.

[0011] In an embodiment, the pushing structure further comprises a locking part, the locking part is rotationally connected on the lead screw part, and the side surface of the locking part towards the lead screw seat is a friction surface.

[0012] In an embodiment, the end of the lead screw part away from the top cone group is connected with a driving part.

[0013] In an embodiment, the top cone set comprises a first top cone part and a first bearing part, the first top cone part is provided with a rotating groove with an opening facing away from the winding core, the first bearing part is arranged in the rotating groove, the pushing structure is inserted into the rotating groove and connected with the first bearing part.

[0014] In an embodiment, the top cone set further comprises a first cover plate, the first cover plate is arranged on the side of the first top cone part and closes the rotating groove, the pushing structure penetrates through the first cover plate and is connected with the first bearing part.

[0015] In an embodiment, the support structure comprises a second top cone part and a rotating structure, the rotating structure is arranged on the frame, the second top cone part penetrates through the rotating structure and is rotationally connected with the rotating structure, the second top cone part is provided with a conical surface, and the conical surface abuts against one end of the winding core.

[0016] In an embodiment, the rotating structure comprises a bearing seat, a second bearing part and a second cover plate, the bearing seat is arranged on the frame, the bearing seat is provided with a bearing groove, the second bearing part is arranged in the bearing groove, the second cover plate is arranged on the side of the bearing seat and closes the bearing groove, the second top cone part penetrates through the second cover plate and is connected with the second bearing part.

[0017] In an embodiment, the rotating structure further comprises an axial locking nut, the second top cone part penetrates through the bearing seat, the axial locking nut is connected to the end of the second top cone part away from the winding core and abuts against the bearing seat.

[0018] The utility model also provides a winding equipment, including manual top cone expansion winding device.

[0019] The technical scheme of the utility model realizes relative arrangement of the pushing structure and the support structure on the frame, rotationally connects the top cone set on the pushing structure, when it is needed to install the winding core, one end of the winding core abuts against the support structure, the pushing structure drives the top cone set to make the other end of the winding core abut against the top cone set, thereby guaranteeing normal rotation of the winding core and improving the installation effect of the winding core, when the winding core is disassembled, the pushing structure drives the top cone set to move to make the top cone set separate from the winding core, so that the winding core can be disassembled, thus, the winding core is conveniently disassembled and assembled, the disassembling and assembling efficiency is improved, and the manufacturing cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings described below are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0021] Figure 1 The structure schematic view of the embodiment of the manual top cone expansion and tension winding material device provided by the present application is shown in the figure.

[0022] Figure 2 The structure schematic view of the embodiment of the manual top cone expansion and tension winding material device provided by the present application is shown in the figure. Figure 1 The local enlarged view of A in the figure.

[0023] Figure 3 The structure schematic view of the embodiment of the manual top cone expansion and tension winding material device provided by the present application is shown in the figure. Figure 1 The local enlarged view of B in the figure.

[0024] Figure 4 The structure schematic view of the embodiment of the manual top cone expansion and tension winding material device provided by the present application is shown in the figure.

[0025] Figure 5 The structure schematic view of the embodiment of the manual top cone expansion and tension winding material device provided by the present application is shown in the figure.

[0026] Explanation of the figure reference:

[0027] 100, manual top cone expansion and tension winding material device; 10, winding core; 11, positioning part; 20, rack; 30, pushing structure; 31, screw rod part; 32, screw rod seat; 33, locking part; 40, driving part; 70, top cone group; 71, first cover plate; 72, first top cone part; 73, first bearing part; 90, supporting structure; 91, bearing seat; 92, second cover plate; 93, axial locking nut; 94, spacer; 95, second bearing part; 96, second top cone part.

[0028] The realization, functional characteristics and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0030] It should be noted that if the embodiments of the utility model have the direction indication (such as up, down, left, right, front, back), the direction indication is only used to explain the relative position relationship, movement condition and the like between components in a certain posture, if the certain posture changes, then the direction indication also changes accordingly.

[0031] In addition, if the embodiments of the utility model have the description of "first", "second" and the like, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In addition, if "and / or" or "and / or" appears in the whole text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0032] The utility model provides a manual top cone expansion tight winding device.

[0033] Please refer to Figure 1 In an embodiment of the utility model, the manual top cone expansion tight winding device comprises:

[0034] The rack 20 is provided with the winding core 10;

[0035] The top cone group 70 is in abutment with one end of the winding core 10;

[0036] The push structure 30 is arranged on the rack 20 and is rotationally connected with the top cone group 70;

[0037] The support structure 90 is arranged on the rack 20, the support structure 90 is oppositely arranged with the push structure 30, and is rotationally connected with one end of the winding core 10.

[0038] As Figures 4-5 In order to facilitate the support of the winding core 10, two oppositely arranged vertical plates are arranged on the rack 20, the push structure 30 is arranged on one of the vertical plates, and the support structure 90 is arranged on the other vertical plate, the winding core 10 is arranged between the push structure 30 and the support structure 90, and the top cone group 70 is arranged between the winding core 10 and the push structure 30.

[0039] It can be understood that the top pushing structure 30 and the support structure 90 are arranged on the two vertical plates respectively to realize the clamping and limiting of the roll core 10, and the arrangement of the top cone group 70 avoids the interference between the rotation of the roll core 10 and the top pushing structure 30 or the support structure 90, and ensures the normal rotation of the roll core 10.

[0040] The technical scheme of the utility model discloses a relative arrangement of the top pushing structure 30 and the support structure 90 on the rack 20, the rotation connection of the top cone group 70 on the top pushing structure 30, the abutment of one end of the roll core 10 with the support structure 90 when needing to install the roll core 10, the driving of the top pushing structure 30 to the top cone group 70 to make the abutment of the other end of the roll core 10 with the top cone group 70, and the guarantee of the normal rotation of the roll core 10 and the improvement of the installation effect of the roll core 10.

[0041] In an embodiment, the top pushing structure 30 comprises a lead screw seat 32 and a lead screw part 31, the lead screw seat 32 is fixedly arranged on the rack 20, and the lead screw part 31 is arranged at one end of the lead screw seat 32 and rotationally connected with one of the top cone groups 70.

[0042] As shown in the drawings, the lead screw seat 32 is fixedly arranged on one of the vertical plates. Figure 1

[0043] It can be understood that, in order to ensure the stability of the fixing of the lead screw seat 32 on the vertical plate, a plurality of connecting pieces are connected to the lead screw seat 32, the connecting pieces are arranged through the vertical plate, and the stable connection between the lead screw seat 32 and the vertical plate is realized through the fixing between the connecting pieces and the vertical plate.

[0044] In an embodiment, the connecting piece is a screw rod, the screw rod penetrates the lead screw seat 32 and is threadedly matched with the vertical plate.

[0045] In order to ensure the quick alignment of the installation position of the lead screw seat 32 on the vertical plate, a groove is arranged on the vertical plate, the lead screw seat 32 is inserted into the groove, and then a plurality of the connecting pieces are connected with the vertical plate, so that the accuracy of the alignment connection between the vertical plate and the lead screw seat 32 is ensured.

[0046] Preferably, the groove profile is the same as the outer profile of the lead screw seat 32, so as to stabilize the positioning and limiting of the lead screw seat 32.

[0047] ​To further define the position of the screw rod seat 32, a through hole is arranged on the side wall of the winding core 10 towards the groove, the screw rod seat 32 is stepped, the screw rod seat 32 is partially arranged in the through hole, and the screw rod seat 32 is in abutment with the side wall of the winding core 10 towards the groove, so as to ensure the positioning quality of the screw rod seat 32.

[0048] As shown in Figure 1 With Figure 2 As shown in the drawings, the screw rod part 31 penetrates the screw rod seat 32, and one end of the screw rod part 31 is rotationally connected with the top cone group 70.

[0049] It can be understood that, in order to realize the movement of the top cone group 70 in the direction along the screw rod part 31, the screw rod part 31 is threadedly matched with the screw rod seat 32, the rotation of the screw rod part 31 is controlled, the screw rod part 31 is made to move linearly, the movement of the top cone group 70 is controlled, the support structure 90 is matched, and the disassembly and assembly of the winding core 10 are realized.

[0050] In an embodiment, the pushing structure 30 further comprises a locking part 33, the locking part 33 is rotationally connected with the screw rod part 31, and the side surface of the locking part 33 towards the screw rod seat 32 is a friction surface.

[0051] In order to avoid the rotation of the screw rod part 31 affecting the clamping quality of the top cone group 70 after the top cone group 70 clamps the winding core 10, the locking part 33 is arranged on the screw rod part 31, and the locking part 33 is in abutment with the screw rod seat 32 when the top cone group 70 is in abutment with the winding core 10.

[0052] It can be understood that, in the process of rotation and translation of the screw rod part 31, the locking part 33 is synchronously rotated and translated until the locking part 33 is in abutment with the screw rod seat 32, the rotation of the screw rod part 31 is limited through the friction between the locking part 33 and the screw rod seat 32, and the automatic rotation of the screw rod part 31 under the action of external force or vibration is avoided, so as to affect the abutment effect of the top cone group 70 on the winding core 10.

[0053] As shown in Figure 1 The locking part 33 is arranged on the screw rod and located on the side of the vertical plate away from the winding core 10.

[0054] It can be understood that, the locking part 33 is located on the side of the vertical plate away from the winding core 10, so as to be synchronously moved in the process of rotation of the screw rod part 31, so that the top cone group 70 is in abutment with the winding core 10, and the locking part 33 is synchronously moved and in abutment with the screw rod seat 32, so as to limit the rotation of the screw rod part 31.

[0055] In order to improve the rotation restriction of the screw rod part 31, the locking part 33 is provided with a friction surface towards the side of the winding core 10, and the friction surface is provided with friction lines.

[0056] It can be understood that when the locking part 33 abuts against the screw rod seat 32, the friction force between the locking part 33 and the screw rod seat 32 realizes the rotation restriction of the screw rod part 31, and guarantees the rotation restriction effect of the screw rod part 31.

[0057] Further, the screw rod seat 32 is provided with friction lines towards the side of the locking part 33, and when the screw rod seat 32 abuts against the locking part 33, the friction lines on the screw rod seat 32 abut against the friction lines of the locking part 33, which greatly improves the friction force between the screw rod seat 32 and the locking part 33, and further improves the rotation restriction effect of the screw rod part 31.

[0058] In an embodiment, the locking part 33 is provided with a limiting groove or a limiting part towards the side of the winding core 10, and the screw rod seat 32 is provided with a limiting part or a limiting groove towards the side of the locking part 33, and the limiting groove or the limiting part on the locking part 33 is in the same straight line with the limiting part or the limiting groove on the screw rod seat 32.

[0059] It can be understood that when the screw rod seat 32 abuts against the locking part 33, the limiting groove on the locking part 33 cooperates with the limiting part on the screw rod seat 32, or the limiting part on the locking part 33 cooperates with the limiting groove on the screw rod seat 32, so as to realize the relative positioning restriction between the screw rod seat 32 and the locking part 33, and further improve the rotation restriction of the screw rod part 31, and avoid the loosening of the screw rod part 31 from affecting the abutting effect of the top cone group 70 on the winding core.

[0060] In an embodiment, the screw rod part 31 is connected with a driving part 40 at one end away from the top cone group 70.

[0061] In order to realize the rotation of the screw rod part 31, the driving part 40 is arranged at one end of the screw rod part 31.

[0062] It can be understood that when the driving part 40 outputs power, the screw rod part 31 is driven to rotate, and the movement control of the top cone group 70 is realized.

[0063] As shown in Figure 1 The driving part 40 is a hand wheel, and one end of the screw rod part 31 is connected with the hand wheel.

[0064] It can be understood that the hand wheel is manually rotated to rotate the lead screw part 31, the movement of the top cone group 70 is manually controlled, the fixing and disassembly of the roll core 10 are realized by cooperating with the support structure 90, the structure is simple, and the operation is convenient, which is greatly suitable for the disassembly of small roll materials and the operation of experimental equipment.

[0065] In an embodiment, the driving part 40 is a power source such as a motor, so as to ensure the rotation control of the lead screw part 31.

[0066] In an embodiment, the top cone group 70 includes a first top cone part 72 and a first bearing part 73, the first top cone part 72 is provided with a rotating groove with an opening away from the roll core 10, the first bearing part 73 is arranged in the rotating groove, the push structure 30 is inserted into the rotating groove and connected with the first bearing part 73.

[0067] As shown in Figure 2 , the first top cone part 72 is provided with a conical surface towards the side surface of the roll core 10, and the vertical cross section of the first top cone part 72 gradually decreases in area along the extension direction of the lead screw part 31.

[0068] It can be understood that when the first top cone part 72 abuts against the roll core 10, the conical surface part of the first top cone part 72 is inserted into the roll core 10, and the conical surface abuts against the roll core 10. Due to the design of the conical surface, the horizontal axis of the first top cone part 72 is coaxial with the horizontal axis of the roll core 10 during the abutting process of the first top cone part 72 and the roll core 10, thereby ensuring that the first top cone part 72 rotates synchronously when the roll core 10 rotates.

[0069] As shown in Figure 2 , in order to realize the positioning of the first top cone part 72 and the roll core 10, a positioning groove is arranged on the first top cone part 72, and a positioning part 11 is arranged on the side surface of the roll core 10 towards the first top cone part 72.

[0070] It can be understood that the positioning part 11 is inserted into the positioning groove, and a bolt penetrates through the positioning part 11 and is connected with the first top cone part 72, so as to realize the positioning of the first top cone part 72 and the roll core 10.

[0071] By arranging the rotating groove in the first top cone part 72 and arranging the first bearing part 73 in the rotating groove, one end of the lead screw part 31 is inserted into the rotating groove and rotationally connected with the first bearing part 73.

[0072] It can be understood that, in the process of rotating the first top cone part 72 and the winding core 10, the screw rod part 31 will not rotate with the rotation of the first top cone part 72 due to the arrangement of the first bearing part 73, avoiding the rotation of the screw rod part 31 affecting the abutting effect of the first top cone part 72 on the winding core 10.

[0073] It should be noted that the first bearing part 73 is arranged in multiple, and multiple first bearing parts 73 are arranged side by side in the rotating groove, and the screw rod part 31 penetrates through multiple first bearing parts 73, thereby ensuring the stability of supporting the screw rod part 31.

[0074] In an embodiment, the top cone group 70 further comprises a first cover plate 71 arranged on the side of the first top cone part 72 and closing the rotating groove, and the push structure 30 penetrates through the first cover plate 71 and is connected with the first bearing part 73.

[0075] In order to avoid the first bearing part 73 from leaving the rotating groove, the first cover plate 71 is arranged on the side of the first top cone part 72.

[0076] It can be understood that the screw rod part 31 penetrates through the first cover plate 71 and is connected with the first bearing part 73.

[0077] It should be noted that the first cover plate 71 and the first top cone part 72 are connected by multiple bolts, thereby avoiding the first cover plate 71 from being separated from the first top cone part 72.

[0078] In an embodiment, the support structure 90 comprises a second top cone part 96 and a rotating structure, the rotating structure is arranged on the rack 20, the second top cone part 96 penetrates through the rotating structure and is rotationally connected with the rotating structure, and the second top cone part 96 is provided with a conical surface which abuts with one end of the winding core 10.

[0079] As shown in Figure 3 The second top cone part 96 comprises a conical body and an extension, the extension is a shaft rod, the conical body is connected to one end of the extension, the conical surface is arranged on the conical body and abuts with one end of the winding core 10, and one end of the extension penetrates through the rotating structure.

[0080] It can be understood that the rotating structure limits the extension, and the winding core 10 abuts with the conical surface, in the process of installing the winding core 10, one end of the winding core 10 abuts with the conical surface of the conical body, and then the screw rod part 31 is rotated, so that the first top cone part 72 moves and abuts with the other end of the winding core 10, thereby achieving the installation of the winding core 10.

[0081] It is understandable that when disassembling the core 10, the lead screw 31 is first rotated so that the first top cone 72 moves away from the core 10, thereby releasing the restriction on the core 10, and the core 10 can then be disassembled.

[0082] It is understood that the extension extends through the rotating structure and is rotatably connected to the rotating structure, so that when the conical part and the core 10 rotate synchronously, the extension and the rotating structure rotate relative to each other, thereby avoiding rotational interference.

[0083] In one embodiment, the rotating structure includes a bearing housing 91, a second bearing portion 95, and a second cover plate 92. The bearing housing 91 is disposed on the frame 20 and has a bearing groove inside. The second bearing portion 95 is disposed in the bearing groove. The second cover plate 92 is disposed on the side of the bearing housing 91 and closes the bearing groove. The second top cone portion 96 penetrates the second cover plate 92 and is connected to the second bearing portion 95.

[0084] like Figure 3 As shown, the bearing housing 91 is mounted on the upright plate, the second bearing portion 95 is mounted in the bearing groove, and the extension extends through the bearing housing 91 and is connected to the second bearing portion 95.

[0085] It should be noted that the bearing seat 91 is connected to the upright plate by multiple bolts.

[0086] It is understandable that the second bearing portion 95 enables relative rotation between the extension and the bearing housing 91.

[0087] like Figure 3 As shown, there are at least two second bearing portions 95, and a spacer 94 is provided between two adjacent second bearing portions 95. The bearing seat 91 is provided with a second cover plate 92, which closes the bearing groove, thereby allowing the multiple second bearing portions 95 to be stably confined within the bearing groove.

[0088] Understandably, the arrangement of multiple second bearing portions 95 facilitates the restricted installation of the extension, and the arrangement of multiple spacers 94 restricts the multiple second bearing portions 95, thereby ensuring the stable restriction of the extension and preventing the second top cone portion 96 from detaching from the bearing seat 91.

[0089] In one embodiment, the rotating structure further includes an axial locking nut 93, the second top cone portion 96 penetrates the bearing seat 91, the axial locking nut 93 is connected to the end of the second top cone portion 96 away from the core 10, and abuts against the bearing seat 91.

[0090] like Figure 3 As shown, in order to prevent the second top cone 96 from horizontally detaching from the bearing seat 91, the extension extends through the bearing seat 91, and the axial locking nut 93 is provided at the end of the extension away from the core 10.

[0091] It is understood that the axial locking nut 93 restricts the second customized part 95 in the horizontal direction to prevent the lead screw part 31 from disengaging.

[0092] This utility model also proposes a winding equipment, which includes a manual top cone tightening winding device. The specific structure of the manual top cone tightening winding device is as described in the above embodiments. Since this winding equipment adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0093] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A hand cone-expanding and tensioning device for a roll of material, comprising: The utility model relates to a hand-operated top cone expansion winding material device, which comprises a rack, a top cone group, a top pushing structure and a support structure. The rack is provided with a winding core. The top cone group is in abutment with one end of the winding core. The top pushing structure is arranged on the rack and rotationally connected with the top cone group. The support structure is arranged on the rack, is opposite to the top pushing structure, and is rotationally connected with one end of the winding core.

2. The hand cone-expanding device of claim 1, wherein The top pushing structure comprises a screw rod seat and a screw rod part.

3. The hand cone-expanding device of claim 2, wherein The screw rod part is rotationally connected with the locking part.

4. The hand cone-expanding device of claim 2, wherein The end of the screw rod part away from the top cone group is connected with a driving part.

5. A hand cone-expanding device for a rolled material according to any one of claims 1 to 4, characterized in that The top cone group comprises a first top cone part and a first bearing part.

6. The hand cone-expanding device of claim 5, wherein, The first top cone part is provided with a rotating groove with an opening away from the winding core.

7. A hand cone-expanding device for a rolled material according to any one of claims 1 to 4, characterized in that The top pushing structure is inserted into the rotating groove and connected with the first bearing part.

8. The hand cone-expanding device of claim 7, wherein, The top cone group further comprises a first cover plate.

9. The hand cone-expanding device of claim 8, wherein, The first cover plate is arranged on the side of the first top cone part and closes the rotating groove.

10. A webbing apparatus characterized by, The top pushing structure penetrates through the first cover plate and is connected with the first bearing part. The support structure comprises a second top cone part and a rotating structure. The rotating structure is arranged on the rack. The second top cone part penetrates through the rotating structure and is rotationally connected with the rotating structure. The second top cone part is provided with a conical surface in abutment with one end of the winding core. The rotating structure comprises a bearing seat, a second bearing part and a second cover plate. The bearing seat is arranged on the rack. The bearing seat is provided with a bearing groove. The second bearing part is arranged in the bearing groove. The second cover plate is arranged on the side of the bearing seat and closes the bearing groove. The second top cone part penetrates through the second cover plate and is connected with the second bearing part. The rotating structure further comprises an axial locking nut. The second top cone part penetrates through the bearing seat. The axial locking nut is connected with one end of the second top cone part away from the winding core and is in abutment with the bearing seat. The utility model relates to a hand-operated top cone expansion winding material device.

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