JPH0616955Y2 - Lubrication mechanism in shedding device of loom - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to the rotation of the tappet cam through a cam lever that comes into contact with the cam surface of the tappet cam immersed in the oil bath in the cam box in the oil bath. The present invention relates to an oil supply mechanism in an opening device that is converted into vertical movement.

[Prior Art] In a depolarizing opening device using spring force, a connector, which is a part of a mechanism for transmitting a driving force to the heald frame side, has a bush and a bush at the end of a cam lever exposed from the oil bath above the oil bath. They are connected via a support, and the connector is rotatably fitted to the bush. The bush support is composed of a toothed plate and can change the meshing position with the cam lever. Thereby, the meshing position of the bush support can be properly specified according to the warp opening angle. In order to lubricate the sliding portion between the bush that moves together with the bush support and the connector, a coating member such as felt is arranged on the swing locus of the connector as disclosed in Japanese Utility Model Publication No. 62-6146. There is a means for installing it, or a means for dropping the oil from the oil pan onto the swinging position of the connector when the heald frame is moved to the lowest position where the cam lever has the longest stationary period.

[Problems to be Solved by the Invention] However, the application means cannot cover the entire change area of the attachment position of the connector with respect to the cam lever.
Lubrication of the sliding part between the bush and the connector cannot be performed properly. Although the dripping unit can cover the changed area for a time, it cannot always dripping to the optimum position, resulting in poor refueling efficiency.

An object of the present invention is to provide a refueling mechanism capable of improving refueling efficiency by performing dripping at an optimum position in the dripping system.

[Means for Solving the Problems] Therefore, in the present invention, an oil pan is installed above the oil bath, and an oil pan capable of dripping oil is connected to the oil pan so that it is located at the lowest position of the heddle frame. The rearrangement means of the oil supply end of the oil supply body is provided so that the entire attachment region of the connector with respect to the cam lever at the corresponding swinging position is the position where the oil supply body can drip.

[Operation] The oil supply end of the oil supply body is rearranged above the connector according to a change in the attachment position of the connector to the cam lever.
As a result, the oil supplied from the oil supply body drops at the optimum position on the connector, and the sliding portion between the connector and the bush is efficiently lubricated.

[Embodiment] An embodiment in which the present invention is embodied in a depolarizing opening device will be described below with reference to FIGS.

A jack lever 3 rotatably supported by a bifurcated bracket 2 erected on both side frames 1 (only one of which is shown) of the loom is rotatably biased by a tension spring 4 and is attached to the jack lever 3. At the lower end of the connected suspension rope 6, a channel-shaped movable mounting body 7 is suspended and suspended by a suspension connecting member 8. A reciprocating drive mechanism including a drive gear 9, a driven gear 10, a tappet cam 11, and a cam lever 12 that rotates in synchronization with the rotation of the machine base is installed on one side frame 1 side, and a pull-down rope connected to the cam lever 12 is installed. 13 is connected to the lower end of the movable mounting body 7 via a hook connecting member 14. Therefore, the rotation of the tappet cam 11 is converted into vertical movement of the movable attachment body 7 via the pull-down rope 13, and the heddle frame 15 erected and supported between the movable attachment bodies 7 moves up and down.

The tappet cam 11 and the cam lever 12 corresponding to each heald frame 15 are rotatably and swingably supported in parallel in the cam box 16, and the inside of the cam box 16 serves as an oil bath 16a. A part of the tappet cam 11 and the lower end of the cam lever 12 are immersed in the oil 0 of the oil bath 16a, and the lower end of the cam lever 12 is in the rotor 12a.
It is joined to the cam surface of the tappet cam 11 via.

Each cam lever 12 exposed from the oil bath 16a is provided with a tooth portion 12b at the upper end thereof, and the tooth portions 12b are provided with bush support members 17A, 17B, 17C, 17D, 1
7E, 17F, 17G, 17H, 17I, 17J are meshed. Bushings 18A, 18B, 18C, 18D, 18E, 18 are attached to the bush supports 17A to 17J.
F, 18G, 18H, 18I and 18J are fitted and fixed, and each bush 18A to 18J has a connector 19A, 1
9B, 19C, 19D, 19E, 19F, 19G, 19
H, 19I and 19J are rotatably fitted. Each connector 19A to 19J is connected to the pull-down rope 13 via a connecting plate pair 20.

An oil pan 21 is installed above the oil bath 16a, and the oil 0 of the oil bath 16a is the cam box 1
The oil is pumped up to the oil pan 21 by the pump 22 inside 6. As shown in FIGS. 2 and 3, the front wall 21 of the oil pan 21
a has a plurality of large diameter oil supply pipes 23A, 23B, 23
C, 23D, 23E, 23F, 23G, 23H, 23
I and 23J are fitted and supported so as to be slidable and rotatable in the left-right direction, and small-diameter oil supply pipes 24A, 24B, 24C, 24D, and 24 are attached to the respective oil supply pipes 23A to 23J.
E, 24F, 24G, 24H, 24I and 24J are connected and fixed. As a result, the oil O in the oil pan 21
Can be dropped from the oil supply port 24a at the tip of each of the oil supply pipes 24A to 24J. Each of the oil supply pipes 23A to 23J is attached so as to correspond to the connector 19A to 19J, and the adjustment screw 2
5A, 25B, 25C, 25D, 25E, 25F, 25
It is positioned and fixed by the tightening action of G, 25H, 25I and 25J.

The connector 19A corresponding to the heald frame 15 at the rearmost portion is attached to the uppermost portion of the cam lever 12, and the connector 19J corresponding to the heald frame at the frontmost portion is attached to the lowermost portion of the cam lever 12. The attachment positions of the connectors 19A to 19J are appropriately adjusted along the teeth 12b of the cam lever 12 by changing the warp opening angle. Therefore, the attachable region of the connectors 19A to 19J to the cam lever 12 covers the entire tooth portion 12b, and the connectors 19A to 19J are changed every time the warp opening angle is changed.
The sliding portion S between J and the bushes 18A to 18J is changed up and down.

When the heddle frame 15 is pulled down to the lowest position, the cam lever 12 remains stationary for the longest time, and at this time, the connector 19A to
If oil O is dropped onto 19J, the oil supply efficiency becomes highest. Therefore, as shown in FIGS.
24J, that is, the oil supply port 24a is the connector 19A-1
Refueling pipes 23A to 23J so as to be located above 9J
If you adjust the tightening and fixing position of each oil supply pipe 24A ~ 2
The oil O dropped from the 4J oil supply port 24a is the connector 1
Accurately drop onto 9A to 19J, and connecter 19A to 19J
The sliding part S between the bushes 18A to 18J is efficiently lubricated. Therefore, regardless of the mounting positions of the connectors 19A to 19J with respect to the cam lever 12, the lubrication in the sliding portion S is always favorably performed without waste of the oil O.

Further, in this embodiment, by rotating the oil supply pipes 23A to 23J, the oil supply pipe 24A as shown by a chain line in FIG.
24J can be directed upward, and when not in use, the oil supply port 24a can be directed upward and the dropping of the oil O can be stopped. Of course, it is also possible to remove the oil supply pipes 23A to 23J from the oil pan 21 and fit the stop plugs therein. Further, as shown in FIG.
If the scale T is engraved on the peripheral surface of 3J, the tightening and fixing position of the oil supply pipes 23A to 23J can be easily determined by the correspondence between the table showing the optimum position of the oil supply port 24a and the scale T. it can.

The present invention is of course not limited to the above embodiment, and for example, as shown in FIG. 4, the oil supply pipe 24A of the above embodiment.
It is also possible to employ an embodiment in which the oil supply body 26 made of cotton thread is inserted into the oil supply pipes 23A to 23J instead of the oil supply pipes 24A to 24J, and the oil supply body 26 is supported by the wire 27 so that the tip 26a of the oil supply body 26 faces downward. As a result, the oil O in the oil pan 21 drops from the tip of the oil filler 26. Alternatively, the oil supply pipes 23A to 23J and 24A to in the embodiment described above.
It is also possible to employ a flexible pipe in place of 24J, and by appropriately bending and deforming the flexible pipe, this refueling port can be rearranged.

The present invention is also applicable to the positive opening device disclosed in Japanese Utility Model Publication No. 62-616.

[Effects of the Invention] As described in detail above, the present invention is connected to the oil pan to which a drip oil supply can be connected, and attaches the connector to the cam lever in the swing position corresponding to the lowest moving position of the heddle frame. Since it is possible to rearrange the refueling end of the refueling body so that the whole is in the drip possible position, the refueling end can be arranged at the optimum dripping position regardless of the attachment position change of the connector with respect to the cam lever, As a result, the excellent effect that the oil supply efficiency is increased and proper lubrication can be achieved is exhibited.

[Brief description of drawings]

1 to 3 show an embodiment embodying the present invention.
The figure is a front sectional view showing one side of the opening device, FIG. 2 is a plan view of an essential part, FIG. 3 is a sectional view taken along the line AA of FIG. 2, and FIG. 4 is a front view of an essential part showing another example. is there. Tappet cam 11, cam box 16, oil bath 16
a, bush support 17A to 17J, bush 18A to
18J, connectors 19A to 19J, an oil pan 21, and oil supply pipes 23A to 23J and 24A to 2 constituting an oil supply body.
4J, refueling port 24a as a refueling end, refueling body 2 of another example
6, a tip 26a as a refueling end.

Claims (1)

[Scope of utility model registration request] 1. An opening device for converting rotation of a tappet cam into vertical movement of a heddle frame through a cam lever contacting the cam surface of the tappet cam immersed in the oil bath in the cam box in the oil bath and exposed from the oil bath. A bush is fixed to the upper end of the cam lever so that the mounting position can be adjusted, and a connector that constitutes a drive transmission mechanism that connects the heald frame and the cam lever is rotatably fitted to the bush, and An oil pan is installed on the oil pan, and an oil filler capable of dropping oil is connected to the oil pan, and the entire attachment area of the connector to the cam lever at the swing position corresponding to the lowest moving position of the heddle frame is covered by the oil filler. Replenishing mechanism in the shedding device of the loom, which is provided with a rearrangement means for replenishing the refueling end of the refueling body so that the refilling position of the refueling body is set to the dripping position.