A non-woven fabric winding mandrel

Abstract

The utility model relates to the technical field of non-woven fabric production equipment, and in particular to a non-woven fabric winding core shaft. It comprises a shaft cylinder, a plurality of hollow parts are arranged on the shaft cylinder, a support piece is slidably connected in the hollow part, ends are arranged at both ends of the shaft cylinder, a moving rod located in the shaft cylinder is slidably connected with the two ends, a plurality of through grooves are arranged on the inner side of the support piece, a convex strip is arranged on one side of the through groove, a plurality of pull-back pieces and push-out pieces are arranged on the moving rod, a concave cone surface that can act with the convex strip to pull the support piece back into the shaft cylinder is arranged on the pull-back piece, a second cone surface that can act with the bottom edge of one side of the through groove to push the support piece outward is arranged on the push-out piece, a first cone surface is arranged at both ends of the moving rod, a push bolt is threadedly connected at both ends of the shaft cylinder, and a second cone surface that can contact the first cone surface is arranged at the end of the push bolt. The utility model can prevent the paper tube from shifting.

Description

Technical Field

[0001] The utility model relates to the technical field of non-woven fabric production equipment, in particular to a non-woven fabric winding core shaft. Background Art

[0002] Non-woven fabrics, also known as non-woven fabrics, are made of oriented or random fibers. After production, non-woven fabrics need to be wound into rolls using a winding device for easy storage and transportation. The structure of the non-woven fabric winding device in the prior art is shown in the patent application number 202221819508.0 entitled "A Non-woven Fabric Winding Device". When in use, the paper tube needs to be sleeved on the outside of the core shaft. This application provides a winding core shaft that can prevent the paper tube from shifting. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a non-woven fabric winding core shaft in view of the above-mentioned technical deficiencies.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a non-woven fabric winding core shaft, including a shaft cylinder, a plurality of hollow parts are arranged on the shaft cylinder, a support piece is slidably connected in the hollow part, end heads are arranged at both ends of the shaft cylinder, a moving rod located in the shaft cylinder is slidably connected with the two end heads, a plurality of through grooves are arranged on the inner side of the support piece, a convex strip is arranged on one side of the through groove, a plurality of pulling back pieces and pushing out pieces are arranged on the moving rod, the pulling back piece is provided with a concave conical surface that can act with the convex strip to pull the support piece back into the shaft cylinder, the pushing out piece is provided with a second conical surface that can act with the bottom edge on one side of the through groove to push the support piece outward, a first conical surface is provided at both ends of the moving rod, a pushing bolt is threadedly connected to both ends of the shaft cylinder, and a second conical surface that can contact the first conical surface is provided on the end of the pushing bolt.

[0005] To further optimize the technical solution, a guide hole is provided on the inner side of the end head, a positioning shaft is provided on the end of the moving rod, and the positioning shaft is slidably connected to the guide hole.

[0006] To further optimize the technical solution, the pulling member is provided with a through hole, the moving rod is provided with a threaded hole, and the bolt passes through the through hole and is connected with the threaded hole so as to fix the pulling member on the moving rod.

[0007] To further optimize the technical solution, the ejector is provided with a through hole, the movable rod is provided with a threaded hole, and the bolt passes through the through hole and is connected with the threaded hole so as to fix the ejector on the movable rod.

[0008] To further optimize the technical solution, a plurality of countersunk holes are provided at both ends of the shaft cylinder, and a plurality of threaded holes are provided on the end head. Bolts pass through the countersunk holes and are connected with the threaded holes so as to fix the end head on the shaft cylinder.

[0009] To further optimize the technical solution, the support member includes a mother bar and a support bar, and the two are detachably connected.

[0010] The utility model has the following advantages: by screwing the pushing bolts at both ends of the shaft tube, the support piece can be pressed against the inner wall of the paper tube to fix its position, and the paper tube is not easy to move during winding; by screwing the pushing bolts at both ends of the shaft tube, the support piece can also loosen the paper tube so that it can be removed from the core shaft, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The figure is a schematic diagram of the appearance of a nonwoven fabric winding core shaft.

[0012] Figure 2 It is a cross-sectional view of a nonwoven fabric winding core shaft.

[0013] Figure 3 for Figure 2 Magnified view of point I in the middle.

[0014] Figure 4 It is a schematic diagram of the structure of the support.

[0015] Figure 5 It is a schematic diagram of the structure of the pull-back member.

[0016] In the figure: 1, shaft cylinder; 11, hollow part; 2, support member; 21, support bar; 22, mother bar; 221, through groove; 222, convex bar; 3, end; 31, guide hole; 4, moving rod; 41, first cone surface; 42, positioning shaft; 43, pull-back member; 431, concave cone surface; 44, push-out member; 5, push bolt. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0018] Specific implementation method: Combination Figure 1-5As shown, a non-woven fabric winding core shaft comprises a shaft cylinder 1, a plurality of hollow parts 11 are arranged on the shaft cylinder 1, the cross section of the hollow part 11 is rectangular and extends along the axial direction of the shaft cylinder 1, a support piece 2 for tightening the inner wall of a paper tube is slidably connected in the hollow part 11, and ends 3 are arranged at both ends of the shaft cylinder 1, and a moving rod 4 located in the shaft cylinder 1 is slidably connected with the two ends 3, so that the moving rod 4 can move along the axial direction of the shaft cylinder 1, a plurality of through grooves 221 are arranged on the inner side of the support piece 2, and a convex strip 222 is arranged on one side of the through groove 221, and a support piece 2 for pressing against the inner wall of a paper tube is slidably connected in the hollow part 11, and a plurality of through grooves 221 are arranged on the inner side of the support piece 2, and a convex strip 222 is arranged on the moving rod 4. There are multiple pull-back members 43 and push-out members 44. The pull-back member 43 is provided with a concave cone surface 431 that can interact with the convex strip 222 to pull the support member 2 back into the shaft tube 1. The push-out member 44 is provided with a second cone surface that can interact with the bottom edge of the through groove 221 away from the convex strip 222 to push the support member 2 outward. Both ends of the moving rod 4 are provided with a first cone surface 41. Both ends of the shaft tube 1 are threadedly connected with a push bolt 5. The push bolt 5 does not expose from the outer surface of the shaft tube 1. The end of the push bolt 5 is provided with a second cone surface that can contact the first cone surface 41. When in use, combined with Figure 2 As shown, loosening the pushing bolt 5 at the left end and then tightening the pushing bolt 5 at the right end can push the support member 2 outward, thereby pressing the inner wall of the paper tube to fix the paper tube, and then the winding work can be carried out. When the winding is completed, loosening the pushing bolt 5 at the right end and then tightening the pushing bolt 5 at the left end can make the support member 2 retract inward a little, so that its surface is not higher than the outer surface of the shaft tube 1, thereby loosening the paper tube.

[0019] Specifically, a guide hole 31 is provided at the inner side of the end head 3 , and a positioning shaft 42 is provided at the end of the moving rod 4 , and the positioning shaft 42 is slidably connected to the guide hole 31 .

[0020] Preferably, a through hole is provided on the pulling member 43, and a threaded hole is provided on the moving rod 4. A bolt passes through the through hole and is connected to the threaded hole to fix the pulling member 43 on the moving rod 4, so that the pulling member 43 can slide along the moving rod 4 before being fixed on the moving rod 4.

[0021] Preferably, a through hole is provided on the ejection member 44, and a threaded hole is provided on the moving rod 4. A bolt passes through the through hole and is connected to the threaded hole to fix the ejection member 44 on the moving rod 4, so that the ejection member 44 can slide along the moving rod 4 before being fixed on the moving rod 4.

[0022] Preferably, a plurality of countersunk holes are provided at both ends of the shaft cylinder 1, and a plurality of threaded holes are provided on the end head 3. Bolts pass through the countersunk holes and are connected to the threaded holes so as to fix the end head 3 on the shaft cylinder 1. Compared with the method of welding the end head 3 to the shaft cylinder 1, this method will not be deformed due to the high temperature generated by welding.

[0023] Preferably, the support member 2 includes a mother bar 22 and a support bar 21, and the two are detachably connected. A countersunk hole can be set on the support bar 21, and a threaded hole can be set on the mother bar 22. The two are fixed together with bolts, which is convenient for assembly when making the core shaft. When assembling the core shaft, first put the pull-back member 43 and the push-out member 44 on the outside of the moving rod 4, and each pair of the pull-back member 43 and the push-out member 44 is respectively located at the position corresponding to each through groove 221, and then put the three mother bars 22 on the outside of the moving rod 4, and the pull-back member 43 and the push-out member 44 are located in the through groove 221, and then move the pull-back member 43 and the push-out member 44 to the correct position and fix them respectively. At this time, the diameter of the virtual circle where the outer surface of the three mother bars 22 is located is smaller than the inner diameter of the shaft tube 1, and then the mother bar 22 and the moving rod 4 can be inserted into the shaft tube 1 together, and then the support bar 21 is inserted into the hollow part 11 from the outside and fixed together with the mother bar 22, and then the end head 3 and the push bolt 5 are installed at both ends of the shaft tube 1.

[0024] It should be understood that the above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope of the present application.

Claims

1. A nonwoven fabric winding mandrel, comprising a shaft cylinder (1), characterized in that: The shaft tube (1) is provided with a plurality of hollow portions (11), a support member (2) is slidably connected in the hollow portions (11), ends (3) are provided at both ends of the shaft tube (1), a moving rod (4) located in the shaft tube (1) is slidably connected to the two ends (3), a plurality of through grooves (221) are provided on the inner side of the support member (2), a convex strip (222) is provided on one side of the through groove (221), a plurality of retracting members (43) and pushing members (44) are provided on the moving rod (4), the retracting members ( The push member (44) is provided with a concave conical surface (431) capable of interacting with the convex strip (222) to pull the support member (2) back into the shaft tube (1), the push member (44) is provided with a second conical surface capable of interacting with the bottom edge of one side of the through groove (221) to push the support member (2) outward, both ends of the moving rod (4) are provided with a first conical surface (41), both ends of the shaft tube (1) are threadedly connected with a push bolt (5), and the end of the push bolt (5) is provided with a second conical surface capable of contacting the first conical surface (41).

2. The nonwoven fabric winding mandrel according to claim 1, characterized in that: A guide hole (31) is provided on the inner side of the end head (3), and a positioning shaft (42) is provided on the end of the moving rod (4), wherein the positioning shaft (42) is slidably connected to the guide hole (31).

3. The nonwoven fabric winding mandrel according to claim 1, characterized in that: The pull-back member (43) is provided with a through hole, and the moving rod (4) is provided with a threaded hole. A bolt passes through the through hole and is connected to the threaded hole so as to fix the pull-back member (43) on the moving rod (4).

4. The nonwoven fabric winding mandrel according to claim 1, characterized in that: The ejection member (44) is provided with a through hole, the moving rod (4) is provided with a threaded hole, and a bolt passes through the through hole and is connected to the threaded hole so as to fix the ejection member (44) on the moving rod (4).

5. The nonwoven fabric winding mandrel according to claim 1, characterized in that: A plurality of countersunk holes are provided at both ends of the shaft cylinder (1), and a plurality of threaded holes are provided on the end head (3). Bolts pass through the countersunk holes and are connected to the threaded holes so as to fix the end head (3) on the shaft cylinder (1).

6. A nonwoven fabric winding mandrel according to any one of claims 1 to 5, characterized in that: The support member (2) comprises a mother bar (22) and a support bar (21), and the two are detachably connected.

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