Telescopic main shaft structure of heavy-load semi-automatic double-disc take-up machine

Abstract

The telescopic main shaft structure of the heavy-load semi-automatic double-disc take-up machine comprises a machine frame, a main shaft assembly and a telescopic air cylinder driving assembly, the main shaft assembly sequentially comprises a main shaft, a rotating sleeve and an embedded sleeve, the main shaft is fixedly connected with the rotating sleeve through a first sliding bearing and a second sliding bearing, and a key groove is formed between the main shaft and the rotating sleeve. A sliding key matched with the key groove is arranged in the key groove; the rotating sleeve is connected with the bushing through a first bearing and a first bearing pack; the rack is connected with a first bearing end cover, and the first bearing end cover is fixed with the first bearing pack; the telescopic air cylinder driving assembly comprises a second bearing set, and the main shaft is connected with the second bearing set. The main shaft is installed in the rotating sleeve and moves back and forth through the sliding bearing. The rotating sleeve drives the main shaft to rotate through the sliding key. And the rotating sleeve and the bushing are connected and fixed through a bearing pack. The air cylinder drives the main shaft to telescopically move back and forth through telescoping, so that the main shaft has both a rotating function and a telescopic function.

Description

Technical Field

[0001] The utility model relates to the technical field of heavy-load semi-automatic double-reel wire-taking machines, in particular to a telescopic main shaft structure of the heavy-load semi-automatic double-reel wire-taking machine. Background Art

[0002] Existing heavy-duty semi-automatic twin-reel take-up machines for the cable industry primarily feature a rotating, non-retractable spindle design. Consequently, the reel push-out action during reel changes—the movement of the reel away from the spindle—is performed by a push-reel cylinder on the spindle side. However, when the reel is heavy, the push-reel cylinder overcomes increased friction, leading to lag or even jamming, as well as wear and deformation of the reel. These factors can lead to reel change failures. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the jamming that occurs when the wire reel is pushed out in the prior art, and provide a retractable main shaft structure of a heavy-load semi-automatic double-reel take-up machine.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] A retractable spindle structure for a heavy-loaded semi-automatic double-reel wire take-up machine comprises a frame, a spindle assembly, and a retractable cylinder drive assembly. The spindle assembly comprises, from the inside to the outside, a spindle, a rotating sleeve, and an insert sleeve. The spindle is fixedly connected to the rotating sleeve via a first sliding bearing and a second sliding bearing. A keyway is provided between the spindle and the rotating sleeve, and a matching sliding key is provided in the keyway.

[0006] The rotating sleeve is connected to the insert sleeve via a first bearing and a first bearing group;

[0007] The frame is connected to a first bearing end cover, and the first bearing end cover is fixed to the first bearing group;

[0008] The telescopic cylinder drive assembly includes a second bearing group, and the main shaft is connected to the second bearing group.

[0009] In this solution, the spindle is mounted within a rotating sleeve, which allows for forward and backward movement via sliding bearings. The rotating sleeve drives the spindle's rotational motion via a sliding key and a keyway on the spindle. The rotating sleeve and insert sleeve are connected and secured by a bearing assembly. The cylinder of the telescopic cylinder drive assembly extends and retracts the spindle, enabling the spindle to achieve both rotational and telescopic functions.

[0010] Preferably, the telescopic cylinder drive assembly is a double cylinder symmetrically distributed.

[0011] In this solution, the symmetrical distribution of the two cylinders can provide a relatively balanced driving force for the main shaft.

[0012] Preferably, the telescopic cylinder drive assembly further comprises a mounting base and a cylinder mounting seat, wherein the mounting base is mounted on the frame; one end of the cylinder mounting seat is fixedly connected to the mounting base, and the other end is fixedly connected to the cylinder.

[0013] Preferably, the telescopic cylinder drive assembly further comprises a connecting plate, a bearing seat is mounted on the connecting plate, and a second bearing group is mounted in the bearing seat.

[0014] Preferably, the connecting plate is fixedly connected to the cylinders on both sides via a pressing plate and a nut.

[0015] Preferably, a rotating disk is provided on the rotating sleeve, and the rotating plate, the friction disk mounting plate and the rubber friction disk are sequentially mounted on the rotating disk.

[0016] The positive effects of this utility model are:

[0017] The spindle is mounted within a rotating sleeve, which, through sliding bearings, allows for forward and backward movement. The rotating sleeve drives the spindle's rotational motion via a sliding key and a keyway on the spindle. The rotating sleeve and insert are connected and secured by a bearing assembly. The cylinder of the telescopic cylinder drive assembly extends and retracts the spindle, allowing the spindle to simultaneously rotate and retract. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the retractable main shaft structure of a heavy-duty semi-automatic double-reel wire take-up machine according to one embodiment of the present application;

[0019] Figure 2 A cross-sectional view of the retractable spindle structure of a heavy-duty semi-automatic double-reel wire take-up machine according to an embodiment of the present application;

[0020] Figure 3 This is a partial structural diagram of the retractable spindle structure of a heavy-duty semi-automatic double-reel wire take-up machine according to one embodiment of the present application;

[0021] Figure 4 This is a schematic diagram of the partial structure of the retractable main shaft structure of the heavy-load semi-automatic double-reel wire take-up machine according to an embodiment of the present application.

[0022] Reference numerals

[0023] Spindle assembly 1

[0024] Inlay 11

[0025] Rotating sleeve 12

[0026] Spindle 13

[0027] First bearing 14

[0028] First bearing group 15

[0029] Rotating disk 16

[0030] First sliding bearing 17

[0031] Second sliding bearing 18

[0032] First bearing end cover 19

[0033] Spacer 110

[0034] Rotating plate 111

[0035] Friction disc mounting plate 112

[0036] Rubber friction disc 113

[0037] Top 114

[0038] Spindle pulley 115

[0039] Brake disc 116

[0040] Slide key 117

[0041] Telescopic cylinder drive assembly 2

[0042] Bearing seat 21

[0043] Connecting plate 22

[0044] Second bearing group 23

[0045] Cylinder mounting seat 24

[0046] Cylinder 25

[0047] Press plate 26

[0048] Nut 27

[0049] Mounting base 28 DETAILED DESCRIPTION

[0050] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0051] like Figure 1-4As shown, a retractable spindle structure of a heavy-loaded semi-automatic double-reel wire take-up machine includes a frame, a spindle assembly 1, and a retractable cylinder drive assembly 2. The spindle assembly 1 is split into an outer sleeve and an inner shaft, and includes, from the inside to the outside, a spindle 13, a rotating sleeve 12, and an insert sleeve 11. The spindle 13 is fixedly connected to the rotating sleeve 12 via a first sliding bearing 17 and a second sliding bearing 18. A keyway is provided between the spindle 13 and the rotating sleeve 12, and a matching sliding key 117 is provided in the keyway.

[0052] The rotating sleeve 12 is connected to the insert sleeve 11 via a first bearing 14 and a first bearing assembly 15. A spacer 110, a spindle pulley 115, and a brake disc 116 are mounted on the rotating sleeve 12, providing axial positioning and rotational force. A tip 114 is mounted on the front end of the spindle 13 and is used to load the bobbin.

[0053] The frame is connected to a first bearing end cover 19, which is fixed to the first bearing assembly 15 and positioned in conjunction with the first bearing end cover 19, so that the rotating sleeve 12 can rotate around the axis of the main shaft 13;

[0054] The telescopic cylinder drive assembly 2 includes a second bearing group 23 , and the main shaft 13 is connected to the second bearing group 23 .

[0055] The main shaft 13 is mounted within the rotating sleeve 12, and its sliding bearings allow for forward and backward movement. The rotating sleeve 12 drives the main shaft 13 in rotation via a sliding key and a keyway in the main shaft 13. The rotating sleeve 12 is connected and secured to the insert sleeve 11 via a bearing assembly. The cylinder 25 of the telescopic cylinder drive assembly 2 extends and retracts, driving the forward and backward telescopic movement of the main shaft 13, thus enabling the main shaft 13 to perform both rotational and telescopic functions.

[0056] In this embodiment, the driving motor of the heavy-duty semi-automatic double-reel take-up machine drives the main shaft pulley 115 to rotate through the synchronous belt, thereby rotating the rotating sleeve 12. While the rotating sleeve 12 rotates, the main shaft 13 rotates at the same time through the action of the sliding key 117.

[0057] When changing the reel, the rotating sleeve 12 is in a stationary state. At this time, the two cylinders 25 in the telescopic cylinder drive assembly 2 will extend or push back. When the cylinder 25 extends, the main shaft 13 moves backward; when the cylinder 25 pushes back, the main shaft 13 moves forward. The forward movement of the main shaft 13 pushes the wire reel out and away from the rubber friction disc 113. This action replaces the function of the disc pushing cylinder in traditional equipment. The backward movement of the main shaft 13 cooperates with the movable top on the compression side of the heavy-duty semi-automatic double-reel take-up machine to transport the wire reel to a close fit with the rubber friction disc 113. This point is regarded as the correct loading of the wire reel.

[0058] Preferably, the telescopic cylinder drive assembly 2 is a symmetrical distribution of two cylinders 25, providing a relatively balanced driving force for the main shaft 13. Figure 2 and 4 As shown, the telescopic cylinder drive assembly 2 includes a bearing seat 21, a connecting plate 22, a second bearing assembly 23, a cylinder mounting seat 24, a cylinder 25, a pressure plate 26, a nut 27, and a mounting base 28. Mounting base 28 is mounted on the frame of the heavy-duty semi-automatic double-reel take-up machine. One end of the cylinder mounting seat 24 is fixedly connected to the mounting base 28, and the other end is fixedly connected to the cylinder 25.

[0059] A bearing assembly 23 is installed in the bearing seat 21 , and the bearing seat 21 is installed on the connecting plate 22 .

[0060] The connecting plate 22 is connected and fixed to the cylinders 25 on both sides through the pressing plate 26 and the nut 27 .

[0061] The telescopic cylinder drive assembly 2 is connected and positioned with the main shaft 13 in the main shaft assembly 1 through the bearing group 23.

[0062] Preferably, the telescopic cylinder drive assembly further includes a mounting base 28 and a cylinder mounting base 24 , wherein the mounting base 28 is mounted on the frame; one end of the cylinder mounting base 24 is fixedly connected to the mounting base 28 , and the other end is fixedly connected to the cylinder 25 .

[0063] Preferably, the telescopic cylinder drive assembly 2 further includes a connecting plate 22 , on which a bearing seat 21 is mounted, and a second bearing group 23 is mounted in the bearing seat 21 .

[0064] Preferably, the connecting plate 22 is fixedly connected to the cylinders 25 on both sides through a pressing plate 26 and a nut 27 .

[0065] Preferably, the rotating sleeve 12 is provided with a rotating disc 16, to which the rotating plate 111, friction disc mounting plate 112, and rubber friction disc 113 are sequentially mounted. The rotating disc 16 is mounted to the rotating sleeve 12 via screws. The rotating disc 16, rotating plate 111, friction disc mounting plate 112, and rubber friction disc 113 are key components for driving the wire reels and enabling reel replacement.

[0066] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of protection of the present invention.

Claims

1. A retractable spindle structure for a heavy-duty semi-automatic double-reel take-up machine, comprising a frame, a spindle assembly, and a retractable cylinder drive assembly, characterized in that: The spindle assembly includes a spindle, a rotating sleeve and an insert sleeve from the inside to the outside. The spindle is fixedly connected to the rotating sleeve through a first sliding bearing and a second sliding bearing. A keyway is provided between the spindle and the rotating sleeve, and a matching sliding key is provided in the keyway. The rotating sleeve is connected to the insert sleeve via a first bearing and a first bearing group; The frame is connected to a first bearing end cover, and the first bearing end cover is fixed to the first bearing group; The telescopic cylinder drive assembly includes a second bearing group, and the main shaft is connected to the second bearing group.

2. The retractable spindle structure of a heavy-load semi-automatic double-reel wire take-up machine according to claim 1, characterized in that: The telescopic cylinder drive assembly is a double cylinder symmetrically distributed.

3. The retractable spindle structure of a heavy-load semi-automatic double-reel wire take-up machine according to claim 2, characterized in that: The telescopic cylinder drive assembly also includes a mounting base and a cylinder mounting seat. The mounting base is mounted on the frame. One end of the cylinder mounting seat is fixedly connected to the mounting base, and the other end is fixedly connected to the cylinder.

4. The retractable spindle structure of a heavy-load semi-automatic double-reel wire take-up machine according to claim 3, characterized in that: The telescopic cylinder drive assembly further comprises a connecting plate, a bearing seat is mounted on the connecting plate, and a second bearing group is mounted in the bearing seat.

5. The retractable spindle structure of a heavy-load semi-automatic double-reel wire take-up machine according to claim 4, characterized in that: The connecting plate is fixedly connected to the cylinders on both sides through a pressing plate and nuts.

6. The retractable spindle structure of a heavy-load semi-automatic double-reel wire take-up machine according to claim 1, characterized in that: The rotating sleeve is provided with a rotating disk, and the rotating plate, the friction disk mounting plate and the rubber friction disk are sequentially mounted on the rotating disk.

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