Sealing device for weft accumulator

Abstract

The utility model relates to a sealing device for a weft accumulator, the weft accumulator comprises a shell and a sealing device arranged at the rear end of the shell, a main shaft is rotatably arranged in the shell, and the rear end of the main shaft penetrates through and is exposed out of the shell; the sealing device comprises a bearing seat, the bearing seat is fixedly connected with the rear end of the shell, an extension shaft is rotatably arranged in the bearing seat, the front end of the extension shaft is connected with a main shaft, and the outer side of the rear end of the extension shaft is sleeved with a rotating disc; a third groove is formed in the rear end of the bearing seat, the outer surface of the rotating disc is in clearance fit with the third groove, and a drainage hole is formed in the lower end of the bearing seat and communicated with the third groove. Water vapor enters the gap between the rotating disc and the third groove and is attached to the surface of the rotating disc, the rotating disc rotates to throw out the water vapor attached to the surface of the rotating disc through the drainage holes, automatic drainage of the sealing device is achieved, and the service life of the weft accumulator is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of weft accumulators, in particular to a sealing device for weft accumulators. Background Art

[0002] The weft feeder is a device for processing weft yarn on textile machinery.

[0003] The weft feeder includes a housing, in which a rotatable main shaft is arranged through a bearing, and the main shaft passes through and emerges from the housing. Water vapor in the environment easily enters between the main shaft and the bearing at the rear end of the weft feeder with the movement of the weft yarn, causing the bearing to rust and reducing the service life of the weft feeder.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model discloses a sealing device for a weft storage device.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A sealing device for a weft accumulator, used for the weft accumulator, the weft accumulator comprises a housing and a sealing device arranged at the rear end of the housing, a rotatable main shaft is arranged in the housing, and the rear end of the main shaft passes through and is exposed from the housing;

[0008] The sealing device comprises a bearing seat, the bearing seat is fixedly connected to the rear end of the housing, a rotatable extension shaft is arranged in the bearing seat, the front end of the extension shaft is connected to the main shaft, and a rotating disk is sleeved on the outer side of the rear end of the extension shaft;

[0009] A third groove is formed at the rear end of the bearing seat, and the outer surface of the rotating disk is loosely matched with the third groove. A drainage hole is formed at the lower end of the bearing seat, and the drainage hole is connected to the third groove.

[0010] A further technical solution is that an opening is provided at the front end of the extension shaft, a first groove is provided in the extension shaft at the rear end of the opening, a sealing ring is arranged in the first groove, the rear end of the main shaft passes through the opening and is inserted into the sealing ring, so that there is an interference fit between the sealing ring and the main shaft, and between the sealing ring and the first groove.

[0011] A further technical solution is that the outer side of the rotating disk has a hook portion, and the end of the hook portion abuts against the outer surface of the bearing seat.

[0012] A further technical solution is that a first bearing is clamped on the inner side of the outer shell, and the main shaft sleeve is arranged in the first bearing.

[0013] A further technical solution is that a second groove is provided at the front end of the bearing seat, a second bearing is clamped in the second groove, and the extended sleeve is arranged in the second bearing.

[0014] A further technical solution is that a sealing gasket is provided on the front end surface of the bearing seat.

[0015] A further technical solution is that the bearing seat is connected to the housing by bolts.

[0016] The beneficial effects of the embodiments of the utility model are as follows:

[0017] (1) The utility model relates to a sealing device for a weft storage device, wherein the rear end of the outer shell is connected to the bearing seat, the rear end of the main shaft is connected to the extension shaft, the extension shaft can rotate relative to the bearing seat, a rotating disk is sleeved on the rear end of the extension shaft, the rotating disk and the third groove at the rear end of the outer shell are clearance-matched, a drainage hole is provided at the lower end of the bearing seat, and the drainage hole is connected to the third groove. After the main shaft of the weft storage device rotates, the main shaft drives the extension shaft and the rotating disk to rotate. Water vapor enters the gap between the rotating disk and the third groove and adheres to the surface of the rotating disk. Since the high-speed rotation of the rotating disk generates centrifugal force, the water vapor attached to the surface of the rotating disk is thrown out through the drainage hole, thereby preventing water vapor from entering from the gap between the main shaft at the rear end of the outer shell and the outer shell, realizing automatic drainage of the sealing device and improving the service life of the weft storage device.

[0018] (ii) Furthermore, a sealing gasket is provided at the front end of the bearing seat, and the sealing gasket is in sealing contact with the rear end face of the housing to prevent water vapor from entering from the rear end face of the housing, thereby further improving the service life of the weft storage device.

[0019] (iii) Furthermore, a second groove is provided at the front end of the bearing seat, a second bearing is clamped in the second groove, and the extended shaft is sleeved in the second bearing, so that the extended shaft can rotate relative to the bearing seat and at the same time guide the extended shaft to ensure that the extended shaft rotates coaxially with the main shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a cross-sectional view of a sealing device for a weft feeder.

[0021] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at A.

[0022] In the figure:

[0023] 1. Housing; 11. First bearing; 2. Main shaft; 3. Bearing seat; 31. Second groove; 32. Third groove; 33. Sealing gasket; 34. Drain hole; 35. Second bearing; 4. Extension shaft; 41. Opening; 42. First groove; 5. Rotating disk; 51. Hook; 6. Sealing ring. DETAILED DESCRIPTION

[0024] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0025] In order to make the purpose, technical scheme and advantages of the utility model clearer, the device proposed in the utility model is further described in detail below in combination with the accompanying drawings and specific implementation methods. According to the following description, the advantages and features of the utility model will be clearer. It should be noted that the accompanying drawings adopt a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the implementation method of the utility model. In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated by the accompanying drawings of this specification are only used to match the content disclosed in the specification, so that people familiar with this technology can understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so it has no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effect that the utility model can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed by the utility model.

[0026] In order to more clearly describe the structure of the sealing device for the weft feeder, the present invention defines the terms "front end" and "rear end". Specifically, the "front end" refers to the end close to the weft feeder for collecting the weft yarn, and the "rear end" refers to the end away from the weft feeder for collecting the weft yarn. Figure 1 For example, Figure 1 The left side of the middle bearing seat 3 is the front end. Figure 1 The right side of the middle bearing seat 3 is the rear end.

[0027] First embodiment:

[0028] The first embodiment discloses a sealing device for a weft feeder. Figure 1 The utility model is a cross-sectional view of a sealing device for a weft feeder. Figure 2 for Figure 1 Schematic diagram of the enlarged structure at A.

[0029] like Figure 1 and Figure 2 As shown, the sealing device for a weft feeder is used for a weft feeder, which includes a housing 1 and a sealing device arranged at the rear end of the housing 1. A main shaft 2 is rotatably arranged in the housing 1, and the rear end of the main shaft 2 passes through and is exposed from the housing 1. Exemplarily, a first bearing 11 is clamped at the rear end of the inner side of the housing 1, and the main shaft 2 is sleeved in the first bearing 11.

[0030] The sealing device includes a bearing seat 3, which is fixedly connected to the rear end of the housing 1, and an extension shaft 4 is rotatably arranged in the bearing seat 3. The front end of the extension shaft 4 is connected to the main shaft 2, and a rotating disk 5 is sleeved on the outer side of the rear end of the extension shaft 4. A third groove 32 is provided at the rear end of the bearing seat 3, and the outer surface of the rotating disk 5 is gap-matched with the third groove 32. A drainage hole 34 is provided at the lower end of the bearing seat 3, and the drainage hole 34 is connected to the third groove 32. Exemplarily, the gap between the outer surface of the rotating disk 5 and the third groove 32 forms a channel for water vapor to enter, and the drainage hole 34 is connected to the channel. Preferably, the drainage hole 34 is arranged downward, and water vapor is more easily discharged along the drainage hole 34 under the action of gravity.

[0031] like Figure 2 As shown, further, an opening 41 is provided at the front end of the extension shaft 4, a first groove 42 is provided in the extension shaft 4 at the rear end of the opening 41, a sealing ring 6 is arranged in the first groove 42, and the rear end of the main shaft 2 passes through the opening 41 and is inserted into the sealing ring 6, so that there is an interference fit between the sealing ring 6 and the main shaft 2, and between the sealing ring 6 and the first groove 42. When the main shaft 2 rotates, the friction force between the main shaft 2 and the sealing ring 6, and the friction force between the sealing ring 6 and the first groove 42 drives the sealing ring 6 and the extension shaft 4 to rotate together.

[0032] Furthermore, a second groove 31 is opened at the front end of the bearing seat 3, and a second bearing 35 is clamped in the second groove 31. The extended shaft 4 is sleeved in the second bearing 35, so that the extended shaft 4 can rotate relative to the bearing seat 3, and at the same time guides the extended shaft 4 to ensure that the extended shaft 4 rotates coaxially with the main shaft 2.

[0033] Furthermore, the outer side of the rotating disk 5 has a hook portion 51, and the end of the hook portion 51 abuts against the outer surface of the bearing seat 3. Exemplarily, the hook portion 51 is bent toward the front end, and the hook portion 51 can seal the channel to reduce the water vapor entering the channel.

[0034] Furthermore, a sealing gasket 33 is disposed on the front end surface of the bearing seat 3 , and the sealing gasket 33 is in sealing contact with the rear end surface of the housing 1 , thereby reducing water vapor entering through the rear end surface of the housing 1 .

[0035] Furthermore, the bearing seat 3 is connected to the housing 1 by bolts, which facilitates the installation and disassembly of the sealing device.

[0036] When this embodiment is working:

[0037] The main shaft 2 of the weft feeder rotates, and the main shaft 2 drives the extension shaft 4 and the rotating disk 5 to rotate. Water vapor enters the gap between the rotating disk 5 and the third groove 32, and adheres to the outer surface of the rotating disk 5 and condenses into water droplets. Due to the centrifugal force generated by the high-speed rotation of the rotating disk 5, the water droplets attached to the surface of the rotating disk 5 are thrown out through the drainage holes 34.

[0038] In this embodiment, water vapor is attached to the surface of the rotating disk 5 to form water droplets, and the water droplets are rotated to swing out, thereby actively draining water, reducing the possibility of water vapor entering from the gap between the main shaft 2 at the rear end of the shell 1 and the shell 1, thereby increasing the service life of the weft storage device.

[0039] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A sealing device for a weft feeder, Features: Used for a weft accumulator, the weft accumulator comprises a housing and a sealing device arranged at the rear end of the housing, a rotatable main shaft is arranged in the housing, and the rear end of the main shaft passes through and is exposed from the housing; The sealing device comprises a bearing seat, the bearing seat is fixedly connected to the rear end of the housing, a rotatable extension shaft is arranged in the bearing seat, the front end of the extension shaft is connected to the main shaft, and a rotating disk is sleeved on the outer side of the rear end of the extension shaft; A third groove is formed at the rear end of the bearing seat, and the outer surface of the rotating disk is loosely matched with the third groove. A drainage hole is formed at the lower end of the bearing seat, and the drainage hole is connected to the third groove.

2. A sealing device for a weft feeder according to claim 1, Features: The front end of the extension shaft is provided with an opening, and the extension shaft is provided with a first groove at the rear end of the opening. A sealing ring is arranged in the first groove. The rear end of the main shaft passes through the opening and is inserted into the sealing ring, so that there is an interference fit between the sealing ring and the main shaft, and between the sealing ring and the first groove.

3. A sealing device for a weft feeder according to claim 1, Features: The outer side of the rotating disk has a hook portion, and the end of the hook portion abuts against the outer surface of the bearing seat.

4. A sealing device for a weft feeder according to claim 1, Features: A first bearing is clamped on the inner side of the housing, and the main shaft sleeve is arranged in the first bearing.

5. A sealing device for a weft feeder according to claim 1, Features: A second groove is formed at the front end of the bearing seat, a second bearing is clamped in the second groove, and the extended shaft sleeve is arranged in the second bearing.

6. A sealing device for a weft feeder according to claim 1, Features: A sealing gasket is disposed on the front end surface of the bearing seat.

7. A sealing device for a weft feeder according to claim 1, Features: The bearing seat is connected to the housing by bolts.

Images