CN2421301Y - Lubricator for vertical spindle yarn barbed needle - Google Patents

Abstract

The lubricating channel of the lubricating device for the vertical axis hook is located inside the wire hook transmission shaft (2), and the rotation of the wire hook transmission shaft is synchronous with the main shaft of the sewing machine. The wire hook transmission mechanism includes a wire hook transmission shaft (2), the top of which is fixed on the vertical axis hook (4), a driving gear, which is mechanically linked with the main shaft, and a wire hook transmission shaft gear ( 6), the wire hook transmission shaft gear (6) is fixed on the wire hook transmission shaft and meshes with the driving gear. The device also includes an oil discharge hole (22) to allow lubricating oil to flow out of the lubricating passage, and an oil wick (16) spanning between the gear and the hole to supply oil to the meshing parts.

Description

Lubricating device for vertical axis hook

The utility model relates to a lubricating device for a vertical axis hook, in particular to a lubricating device for a vertical axis hook used for lubricating the transmission shaft gear of the wire hook.

Referring to FIGS. 2 and 3 , the wire hook transmission shaft 2 is rotatably supported by the wire hook transmission shaft base 8 , and the top end of the wire hook transmission shaft 2 is fixed on the wire hook body 4 a of the vertical axis hook 4 . The wire hook transmission shaft gear 6 fixed on the middle part of the transmission shaft 2 is engaged with the driving gear, which is combined with the sewing machine main shaft (not shown) and rotates together. Lubricating oil is delivered through the lubricating oil supply pipe 10 combined with the transmission shaft base 8 by a pump (not shown) installed in the oil pan 14 . Constructed a wire hook lubricating mechanism like this, this wire hook lubricating mechanism comprises a pipe 10 and the wire hook lubricating channel that forms at the drive shaft base 8 inner side, therefore, for example utilizes centrifugal force to make wire hook 4 lubricate, and this centrifugal force is controlled by the main shaft. The rotation of the wire hook body 4a that rotates synchronously is produced. The oil quantity adjusting screw 12 is adjustable so as to provide a certain amount of lubricating oil to the wire hook 4. The excess lubricating oil drips onto the oil pan 14 located below the drive shaft base 8 .

The lubricating oil in the oil pan 14 is delivered to the transmission shaft gear 6 and the driving gear (not shown) through the oil core 16, and the oil core 16 is fixed on the transmission shaft base 8 by the oil core support frame 18.

As shown in Figures 2 and 3, the lower end of the wick 16 rests on a sponge-like filter layer 20, which is typically disposed within the oil pan 14, to filter thread debris and the like.

The reduction of the amount of oil in the oil pan 14 reduces the amount of lubricating oil that penetrates into the filter layer 20 , so that the lower end of the oil wick 16 absorbs very little oil. As a result, the drive shaft gear 6 lacks oil, and sometimes no oil at all.

Therefore, an object of the present utility model is to provide a lubricating device with a simple structure for the vertical axis hook, so as to continuously supply oil to the transmission shaft gear of the line hook.

In order to achieve this purpose, the utility model provides a lubricating device for a vertical axis hook, which includes a wire hook transmission mechanism with a wire hook transmission shaft. A vertical axis hook is fixed on the top of the wire hook transmission shaft. Driven by the driving gear, the driving gear is mechanically linked with the main shaft of the sewing machine, a gear is fixed on the wire hook transmission shaft; a transmission shaft base supporting the wire hook transmission shaft; a wire hook lubricating mechanism with a lubricating oil supply pipe, the pipe connects a The oil pan is connected to the base of the transmission shaft, and a lubricating oil passage is formed in the transmission shaft of the wire hook; an adjustment mechanism arranged on the base of the transmission shaft is used to adjust the amount of oil supplied to the hook of the vertical axis. The device also includes an oil discharge hole opened on the base of the transmission shaft, and excess oil can overflow from the hole; and an oil core, which bridges between the oil discharge hole and the gear .

The above and other features of the utility model can be further understood from the following description of the embodiments with the aid of the accompanying drawings. in:

Fig. 1 is the front view of the lubricating device for the vertical axis hook of the present utility model.

Fig. 2 is a front view of a conventional lubricating device for a vertical axis hook.

FIG. 3 is a right side view of FIG. 2 .

An embodiment of the present utility model will now be described with reference to the accompanying drawings.

Those parts which are identical to corresponding parts in the prior art are designated by the same numerals.

Lubricating oil from an oil supply source (not shown) is delivered to the wire hook transmission shaft base 8 through the lubricating oil supply pipe 10 . Here, the oil supply source may be a pump installed in the oil pan 14 as installed in a conventional oil source. The lubricating oil is delivered to the vertical axis hook 4 through a channel comprising a tube 10 integrated with the drive shaft base 8 . The amount of oil supplied to the line hook 4 can be adjusted to a certain level through the oil amount adjusting screw 12, and the excess lubricating oil flows out from the oil discharge hole, which is located on the transmission shaft base 8.

The oil core 16 mold that is fixed on the transmission shaft base 8 by the oil core support frame 18 straddles between the transmission shaft base 8 and the wire hook transmission shaft gear 6 . The upper end of the oil wick 16 can also be fixed on a fixed part similar to a frame by similar fixing means (not shown).

The lower end of the oil core 16 is arranged below the oil discharge hole 22 and is located on the transmission shaft base 8 so as to absorb the lubricating oil flowing out through the hole 22 . The oil wick 16 delivers the absorbed oil to the meshing portion between the transmission shaft gear 6 and the drive gear.

The lubricating oil that makes the gears in the wire hook transmission mechanism lubricated drops onto the oil pan 14 arranged below the power transmission shaft base 8 . The oil in the oil pan 14 is circulated through a sponge-like filter layer 20 which is used to eliminate thread debris and the like.

As described above, lubricating oil can be continuously supplied to the hook transmission shaft gear with a simple structure.

Claims (1)

1. the lubricating arrangement of a vertical shaft line hook, it comprises that one has the line hook transmission mechanism of line hook power transmission shaft, a vertical shaft line hook is fixed on the top of line hook power transmission shaft, a driving gear drives in this line hook power transmission shaft, this driving gear and machine spindle mechanical linkage are fixed with a gear on the line hook power transmission shaft; The power transmission shaft base of one Support Level hook power transmission shaft; One has the line hook lubricating structure of lubricating oil fuel feed pump, and this pipe links to each other a food tray with described power transmission shaft base, is formed with a grease channel in the line hook power transmission shaft; Be arranged on the governor motion on the power transmission shaft base, it is used to regulate the fuel delivery to vertical shaft line hook, it is characterized in that this device also includes an outage of opening on described power transmission shaft base, and unnecessary oil can overflow from this hole; And an oily heart, this oil heart is connected across between described outage and the described gear.