CN217556426U

CN217556426U - Water-jet loom

Info

Publication number: CN217556426U
Application number: CN202220984932.4U
Authority: CN
Inventors: 秋田悠吾; 大山胜也; 米岛芳之
Original assignee: Tsudakoma Industrial Co Ltd
Current assignee: Tsudakoma Corp
Priority date: 2021-05-20
Filing date: 2022-04-26
Publication date: 2022-10-11
Anticipated expiration: 2032-04-26
Also published as: KR20220157295A; TW202246609A; CN115369554A

Abstract

The utility model provides a hydraulic loom, this hydraulic loom is through preventing that the old emollient of casing portion exhaust from the middle supporting part of supporting the rocker falls into the water receiving basin to can reduce the oil content that the discharged water contains as far as possible. The water jet loom is provided with a beating-up device and a water receiving basin, wherein the beating-up device comprises a rocking shaft and an intermediate support part for supporting the rocking shaft, the intermediate support part is provided with a shell part with a built-in bearing, the shell part is configured to discharge old lubricant to the outside through lubricant supplied for lubricating the bearing, in the water jet loom, the beating-up device is provided with a lubricant recovery mechanism for recovering the discharged lubricant discharged from the shell part, and the lubricant recovery mechanism comprises a storage part which is arranged separately from the water receiving basin and is configured to store the lubricant and a delivery pipe for guiding the discharged lubricant discharged from the shell part to the storage part.

Description

Water-jet loom

Technical Field

The utility model relates to a water jet loom, this water jet loom possesses: a beating-up device which includes a rocker shaft erected on a pair of side frames in a loom frame and an intermediate support part supporting the rocker shaft between the side frames and beats up weft after weft insertion; and a water receiving basin provided below the rocker shaft and receiving jet water jetted from the weft insertion nozzle, wherein the intermediate support portion has a housing portion in which a bearing is installed, and the housing portion is configured to be able to supply a lubricant for lubricating the bearing to the inside and to discharge an old lubricant to the outside by supplying the lubricant.

Background

In a loom, a beating-up device for beating up a weft yarn after weft insertion includes: a rocker shaft erected on the side frame of the loom frame; a plurality of sley legs mounted to the rocker shaft; a reed clamp supported by a plurality of sley legs; and a reed fixed to the reed clip. In this beating-up device, the rocker is rotationally driven in conjunction with the rotation of the main shaft of the loom, and the reed swings to beat up.

In such a beating-up device, the rocker is in the following state: the support shafts provided on the two side frames are coupled to the end portions of the support shafts, respectively, so as to be erected on the side frames as described above. In addition, in the beating-up device, the rocker is supported at both ends thereof with respect to the loom frame in a manner coupled to the support shaft as described above, but in addition to this, a structure configured as follows is also known: the rocker shaft is also supported at its intermediate portion by an intermediate support portion supported by a beam member that is erected on the side frame (for example, patent document 1).

The intermediate support portion is configured to have a housing portion in which a bearing is incorporated, and rotatably supports an intermediate portion of the rocker shaft by the bearing incorporated in the housing portion. In order to smoothly support the rotation of the rocker shaft by the bearing, a lubricant such as grease is filled in the housing portion in which the bearing is installed.

Further, the housing portion is configured to be able to supply lubricant to the inside thereof by an oil supply pipe or the like (for example, patent document 2), and by supplying new lubricant during operation of the loom or at the time of completion of weaving (the restraining pole 12426). As also disclosed in patent document 2, the case portion is provided with a waste oil sump or the like, and is configured to discharge the filled (used) lubricant as a discharged lubricant in association with the supply of new lubricant.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2005-336669

Patent document 2: japanese patent laid-open No. 2004-205013

SUMMERY OF THE UTILITY MODEL

Problem to be solved by utility model

However, in the conventional loom, the discharged lubricant discharged from the intermediate support portion (housing portion) by the supply of the new lubricant as described above drops below the intermediate support portion as it is. In the case where the loom is a water jet loom, a water receiving basin (tray) for receiving water jet from a weft insertion nozzle and for receiving water falling downward with weft insertion is provided in the lower portion of the inner side of the loom frame, and the discharged lubricant falling downward as described above falls into the water receiving basin. As a result, the water discharged from the water jet loom contains a large amount of lubricant (oil). Therefore, in the weaving mill, the treatment of the discharged water (drainage treatment) is performed, but if the oil content is so large, the drainage treatment requires much labor and cost.

Accordingly, an object of the present invention is to provide a water jet loom capable of reducing oil content contained in discharged water as much as possible by preventing the above-mentioned discharged lubricant from falling into a water receiving tub.

Means for solving the problems

The utility model discloses on the premise of a water jet loom, the water jet loom is provided with a beating-up device which comprises rocking shafts arranged on a pair of side frames in a loom frame and a middle supporting part used for supporting the rocking shafts between the side frames, and beating-up the weft after weft insertion; and a water receiving basin provided below the rocker shaft and receiving the jet water jetted from the weft insertion nozzle, wherein the intermediate support portion includes a housing portion in which a bearing is installed, and the housing portion is configured to be able to supply a lubricant for lubricating the bearing to the inside and to discharge an old lubricant to the outside by supplying the lubricant.

In order to achieve the above object, the present invention provides a water jet loom as a premise, wherein the beating-up device includes a lubricant recovery mechanism for recovering discharged lubricant that is old lubricant discharged from the housing portion, the lubricant recovery mechanism including: a reservoir portion provided separately from the water receiving tub and configured to be capable of storing a lubricant; and a delivery pipe for guiding the discharged lubricant discharged from the housing portion to the reservoir portion.

In the water jet loom of the present invention, the lubricant recovery mechanism may include a receiving portion provided below the housing portion and receiving the discharged lubricant, the receiving portion may communicate with the delivery tube, and the storage portion may be provided below the receiving portion.

Specifically, the scheme of the utility model is as follows respectively.

One aspect is a water jet loom including: the weft beating-up device comprises rocking shafts erected on a pair of side frames of a loom frame and a beating-up device which supports an intermediate supporting part of the rocking shafts between the side frames and beats up weft after weft insertion; and a water receiving tub provided below the rocker shaft and receiving jet water ejected from a weft insertion nozzle, wherein the intermediate support portion has a housing portion in which a bearing is built and which is configured to be able to supply a lubricant for lubricating the bearing to the inside and to discharge old lubricant to the outside by being supplied with the lubricant, and wherein the beating-up device includes a lubricant recovery mechanism that recovers discharged lubricant that is old lubricant discharged from the housing portion, the lubricant recovery mechanism including: a storage part which is arranged separately from the water receiving basin and is configured to store lubricant; and a delivery pipe for guiding the discharged lubricant discharged from the housing portion to the reservoir portion.

A second aspect is the water jet loom according to the first aspect, wherein the lubricant recovery mechanism includes a receiving portion provided below the housing portion, the receiving portion receiving the discharged lubricant and communicating with the delivery pipe, and the storage portion is provided below the receiving portion.

The utility model has the following effects.

According to the utility model discloses, the discharge emollient of intermediate strut portion (casing portion) exhaust among the beating-up device can not drop to water receiving basin side, but retrieves by emollient recovery mechanism, consequently can prevent to sneak into discharge emollient in the aquatic of water receiving basin. Accordingly, in the water jet loom, the oil content in the discharged water can be reduced as much as possible, and as a result, the cost required for the drainage treatment and the like can be suppressed.

Further, by configuring the lubricant recovery mechanism to receive the discharged lubricant by the receiving portion, the cost (manufacturing cost) associated with the manufacturing of the water jet loom including the lubricant recovery mechanism can be suppressed. More specifically, the housing portion is supplied with new lubricant as described above, and thereby discharges and discharges the lubricant from both sides of the portion in which the bearing is housed. Therefore, in order to directly guide the discharged lubricant to the reservoir portion, two delivery pipes are required in each housing portion (intermediate support portion).

In contrast, the lubricant recovery mechanism is configured to have the receiving portion provided so as to receive the discharged lubricant below the housing portion, so that the discharged lubricant discharged from the portion of the housing portion that houses the bearing is temporarily received by the receiving portion and then guided to the storage portion by the delivery pipe that communicates with the receiving portion. Therefore, in this configuration, the number of the lead-out pipes per housing portion (intermediate support portion) can be set to one. Further, according to this structure, not only the number of the lead-out tubes but also the structure for supporting the lead-out tubes and the structure for guiding the lead-out tubes to the storage portion can be made to correspond to the single lead-out tube, and therefore, the structure becomes simpler, and the manufacturing cost can be suppressed as a result.

Drawings

Fig. 1 is a plan view of a water jet loom to which the present invention is applied.

Fig. 2 is a side sectional view of a water jet loom to which the present invention is applied.

Fig. 3 is an explanatory view of the lubricant recovery mechanism of the present invention.

Fig. 4 is an explanatory diagram (base:Sub>A cross-sectional view taken along linebase:Sub>A-base:Sub>A in fig. 5) showing another example of the configuration of the lubricant recovery mechanism of the present invention.

Fig. 5 is an explanatory diagram (a cross-sectional view taken along line B-B in fig. 4) showing another example of the configuration of the lubricant recovery mechanism according to the present invention.

Description of the symbols

1-frame, 2-side frame, 3 a-front upper stay, 3 b-front lower stay, 3 c-rear upper stay, 3 d-rear lower stay, 4-support plate, 10-beating-up device, 11-reed, 14-rocker shaft, 30, 50-intermediate support portion, 32, 70-base portion, 34, 52-housing portion, 34a, 58-bearing, 36-supply port member, 40-lubricant recovery mechanism, 42-receiving portion, 42 a-discharge port, 44-storage portion, 46-discharge pipe, 52 a-through hole, 52 b-bulging portion, 54-rubber ring, 56-oil seal, 57-discharge space, 64-supply port, 66-communication hole, 68-discharge flow path, 72-discharge port, 74-discharge pipe, L-water jet loom, NZ-weft insertion nozzle, Y-weft, T-warp, W-woven fabric, CF-weaving port.

Detailed Description

An embodiment of a water jet loom according to the present invention will be described below with reference to fig. 1 to 3.

As shown in fig. 1, the water jet loom L includes a weft insertion nozzle NZ fixedly provided to one side frame 2 of a pair of side frames 2 of a frame 1. Then, in the water jet loom L, the weft yarn Y after the weft insertion is beaten up at the cloth fell CF of the cloth W by the reed 11 in the beating-up device described below.

In the water jet loom L, the frame 1 is configured such that a pair of side frames 2 are a main body, and the two side frames 2 are connected by four front upper stays 3a, front lower stays 3b, rear upper stays 3c, and rear lower stays 3d as beam members (fig. 2). That is, in the frame 1, four beam members are erected on the pair of side frames 2. Further, the water jet loom L includes a warp beam 6 for feeding out the warp T on one side (rear side) in the front-rear direction thereof so as to be supported by the two side frames 2. Further, a take-up beam 8 for taking up the woven fabric W is provided on the other side (front side) in the front-rear direction so as to be supported by the two side frames 2.

Of the four beam members, the front upper stay 3a and the front lower stay 3b, which are beam members disposed on the take-up bobbin side 8 in the front-rear direction, are disposed so as to be vertically different from each other, the upper beam member is the so-called front upper stay 3a, and the lower beam member is the so-called front lower stay 3b. The rear upper stay 3c and the rear lower stay 3d, which are beam members disposed on the warp beam 6 side in the front-rear direction, are also disposed at positions different from each other in the vertical direction, the upper beam member being the so-called rear upper stay 3c, and the lower beam member being the so-called rear lower stay 3d.

The water jet loom L includes a beating-up device 10 that swings a drive reed 11. In this beating-up device 10, a reed 11 is supported by a rocker 14 via a reed clamp 12 and a saddle leg 13 (fig. 3). The rocker 14 is coupled at both ends thereof to support shafts (not shown) provided to protrude inward of the side frames 2 via coupling members. Thus, the rocker shaft 14 is provided between the side frames 2 so as to extend in the weaving direction so as to be bridged between two support shafts.

In the beating-up device 10, the rocker 14 is supported by the two support shafts as described above, and is supported by the intermediate support portion 30 supported by the front upper stay 3a between the support shafts. In the present embodiment, the intermediate support portion 30 is attached to the support plate 4 fixed to the front upper stay 3a. The intermediate support portion 30 is provided at two locations with a space between the support shafts (the side frames 2).

Specifically, a plate-shaped support plate 4 is fixed to the front upper stay 3a. The support plate 4 is a rectangular plate material when viewed in the plate thickness direction, and is formed as follows: the dimension in the longitudinal direction (longitudinal direction) of both end surfaces in the plate thickness direction is slightly smaller than the dimension in the longitudinal direction of the front upper stay 3a of the frame 1, and the dimension in the short side direction is larger than the dimension of the front upper stay 3a in the front-rear direction. The support plate 4 is fixed to the front upper stay 3a such that the longitudinal direction thereof coincides with the longitudinal direction (= weaving width direction) of the front upper stay 3a and one of the end surfaces abuts against the lower surface of the front upper stay 3a. Therefore, the one end face of the support plate 4 is a face (upper face) directed upward on the loom.

The support plate 4 is fixed in the front-rear direction in a state where a side edge of one end side in the short-side direction is aligned with a front end of the front upper stay 3a. Therefore, the support plate 4 protrudes to the rear side of the front upper stay 3a in a state of being fixed to the front upper stay 3a in this manner. Incidentally, the fixing of the support plate 4 to the front upper stay 3a is performed in the form of, for example, mounting using a threaded member (bolt or the like), or fixing by welding or the like.

The intermediate support portion 30 has a bearing 34a for rotatably supporting the rocker 14, and is configured mainly by a housing portion 34 in which the bearing 34a is incorporated. The intermediate support portion 30 has a base portion 32 (only a part of which is shown) for mounting the case portion 34 so as to stand on the support plate 4. The intermediate support 30 is attached to the support plate 4 at the base portion 32 by a screw member or the like, for example.

In the intermediate support portion 30, the housing portion 34 incorporates the bearing 34a as described above, and a lubricant (grease) is filled in the interior thereof in order to smoothly support the rotation of the rocker 14 by the bearing 34 a. In addition, the housing portion 34 is configured to be able to supply lubricant to the inside thereof, similarly to the conventional configuration. Specifically, the case 34 is formed with a through hole (not shown) that penetrates from the outer peripheral surface thereof to the inside, and a supply port member 36 such as a grease nipple is attached so as to fit into the through hole.

Thus, the housing 34 is provided with a lubricant supply portion. In addition, a lubricant supply device such as a grease gun is connected to the supply port member 36 via a hose or the like, and the lubricant is supplied to the inside of the housing 34.

Further, the case portion 34 is configured to supply new lubricant to the inside thereof as described above, thereby discharging the filled lubricant as discharged lubricant from both ends thereof, and the details thereof are omitted.

The water jet loom L includes a water receiving tub 5 (fig. 2) that receives jet water ejected from the weft insertion nozzle NZ. The water pan 5 is formed as a bathtub-like member having a substantially rectangular bottom. The drain pan 5 is provided below the rocker 14 between the front lower stay 3b and the rear lower stay 3d. The drain pan 5 is provided so as to extend in a range between the side frames 2 in the weaving width direction and in a range between the front lower stay 3b and the rear lower stay 3d in the front-rear direction in plan view.

In the above-described water jet loom, the beating-up device of the present invention includes a lubricant recovery mechanism for recovering the lubricant discharged from the housing portion. The lubricant recovery mechanism includes: a reservoir portion provided separately from the water pan and configured to be capable of storing a lubricant; and a delivery pipe that guides the discharged lubricant discharged from the housing portion to the reservoir portion. In this embodiment, the lubricant recovery mechanism includes a receiving portion provided below the housing portion and receiving the discharged lubricant, the receiving portion is in communication with the delivery tube, and the reservoir portion is provided below the receiving portion. The details of such a lubricant recovery mechanism are as follows.

As described above, the lubricant recovery mechanism 40 includes the receiving portion 42, the reservoir portion 44, and the delivery pipe 46. First, as for the receiving portion 42, in the present embodiment, the receiving portion 42 is formed as a part of the support plate 4 described above.

More specifically, in the support plate 4 to which the intermediate support portion 30 is attached as described above, a recess is formed in a portion located below the case portion 34 so as to be recessed from the surrounding portion. In the present embodiment, the portion of the support plate 4 including the concave portion functions as the receiving portion 42. The receiving portion 42 is formed below each intermediate support portion 30 so as to have a rectangular shape in plan view and have a size including the existing range of the case portion 34.

In addition, a through hole (discharge hole) 42a is formed in the receiving portion 42 so as to open at the bottom surface of the recess and penetrate the support plate 4. In the illustrated example, the discharge hole 42a is formed in the recess at a position substantially at the center in the longitudinal direction of the support plate 4 and on the front side in the short-side direction of the support plate 4. In the receiving portion 42, the bottom surface of the recess is preferably formed to be inclined toward the discharge hole 42a.

The reservoir 44 is a tray-shaped member, and is provided separately from the water receiving tub 5. The reservoir 44 is formed such that the bottom plate has a rectangular shape and a size larger than a dimension of the receiving portion 42 (the recess) in the longitudinal direction of the support plate 4. In addition, two receiving portions are provided so as to be arranged below the receiving portions 42 in the vertical direction. In the illustrated example, each storage section 44 is provided so as to be positioned directly below the corresponding receiving section 42.

In this arrangement, the storage sections 44 are provided so as to be attached to the front lower stay 3b positioned below the support plate 4 in a state where the longitudinal direction of the bottom plate coincides with the longitudinal direction of the support plate 4. The storage portions 44 are attached to the front lower stay 3b by screws or the like, and the storage portions 44 are detachable from the front lower stay 3b. In the illustrated example, a part of the drain pan 5 is interposed between the reservoir 44 and the front lower stay 3b.

In addition, a delivery pipe 46 for guiding the discharged lubricant received by the receiving portion 42 into the reservoir portion 44 is provided between each receiving portion 42 and the corresponding reservoir portion 44. Each of the delivery pipes 46 is a conduit (pipe) capable of guiding the lubricant (guiding the flow), and is attached to the receiving portion 42 (support plate 4) so as to communicate with the discharge hole 42a in the receiving portion 42 at one end side end portion thereof.

In addition, each delivery pipe 46 linearly extends toward the reservoir 44, and has a length dimension such that the other end thereof reaches the reservoir 44. In the illustrated example, each delivery pipe 46 is formed such that the other end portion thereof is bent substantially at a right angle and is placed on the bottom surface of the storage portion 44 at the bent portion. Therefore, each delivery pipe 46 is supported (supported) by the bottom surface of the storage section 44 at the other end portion thereof.

According to the water jet loom L configured as described above, since the lubricant recovery mechanism 40 is provided for the beating-up device 10 in which the rocker 14 is supported by the intermediate support portion 30, the discharged lubricant discharged as new lubricant is supplied to the intermediate support portion 30 (the housing portion 34) is received by the receiving portion 42 without falling downward. The discharged lubricant received by the receiving portion 42 drops from the discharge hole 42a in the receiving portion 42 into the interior of the delivery pipe 46, and is guided into the reservoir 44 by the delivery pipe 46. Thereby, the discharged lubricant flows into the reservoir 44, and is accumulated (stored) in the reservoir 44.

Therefore, in the water jet loom L in which the lubricant recovery mechanism 40 is provided in the beating-up device 10, since the discharged lubricant is prevented from falling into the water catch basin by the lubricant recovery mechanism 40, it is possible to prevent the water discharged from the water jet loom L from containing a large amount of oil (lubricant) as much as possible.

The lubricant recovery mechanism 40 is configured to receive the discharged lubricant by the receiving portion 42, and the discharged lubricant can be guided to the reservoir portion 44 by one lead pipe 46 in each intermediate support portion 30 (housing portion 34), so that the entire structure can be simplified. Therefore, in the water jet loom L having the lubricant recovery mechanism 40 configured as described above, the manufacturing cost can be suppressed.

Further, since the reservoir 44 is detachably attached to the frame 1 (the front lower stay 3 b) as described above, the reservoir 44 is detached from the frame 1 and collected at a timing when the discharged lubricant accumulates in the reservoir 44 to some extent (for example, at a timing when the loom is replaced or the like).

The present invention is not limited to the above-described embodiment (the above-described embodiment), and can be implemented in the following modified embodiments.

(1) In the above embodiment, the receiving portion is provided so as to function as the receiving portion 42 in a portion including the recess formed in the support plate 4. However, in the present invention, the receiving portion may receive the discharged lubricant, and the configuration is not limited to this. For example, a portion that receives the discharged lubricant discharged from the case portion may be integrally provided in the intermediate support portion (or may be attached to the intermediate support portion), and the portion may function as a receiving portion.

The examples shown in fig. 4 and 5 are examples in which a portion functioning as a receiving portion is integrally provided in the intermediate support portion. More specifically, in the intermediate support portion 50, the housing portion 52, which houses a bearing 58 for rotatably supporting the rocker 14, has a through hole 52a through which the rocker 14 is inserted. In the through hole 52a, large diameter portions 60 formed to have an enlarged inner diameter are provided on both ends in the direction of the center line of the through hole 52a (= the weaving width direction). The case portion 52 is formed in a substantially cylindrical shape, but has a bulging portion 52b (fig. 5) bulging in the radial direction at a portion of the circumference thereof.

Further, a rubber ring 54 is fitted to each of the large diameter portions 60 at the inner end thereof in the weaving width direction. The rubber ring 54 is formed of an elastically deformable material (synthetic rubber or the like), and has an inner diameter slightly smaller than the outer diameter of the rocker shaft 14. Therefore, each rubber ring 54 is in contact with the outer peripheral surface of the rocker 14 over the entire circumference in a state where the rocker 14 is inserted into the through hole 52a.

The bearing 58 is fitted (housed) in the through hole 52a and in a space (housing space) 62 between the two rubber rings 54 defined by the two rubber rings 54. That is, the housing space 62 is a portion of the housing portion 52 that houses the bearing 58. Incidentally, the bearing 58 is a so-called slide bearing that rotatably supports the rotary shaft on the inner peripheral surface of the cylinder. The housing portion 52 is provided with a supply hole 64 communicating with the housing space 62 from the outer peripheral surface thereof, for supplying lubricant into the housing space 62. A grease nipple or the like (not shown) is attached to the supply hole 64.

An oil seal 56 made of an elastically deformable material (e.g., synthetic rubber) is provided at each large-diameter portion 60 in the through hole 52a and at the outer end in the weaving direction. Each oil seal 56 is in close contact with the outer peripheral surface of the rocker shaft 14 over the entire circumference in a state where the rocker shaft 14 is inserted into the through hole 52a. Thus, the through hole 52a is in a state in which the portions provided with the oil seals 56 at both ends in the weaving direction are closed by the oil seals 56.

The case 52 has a discharge flow path 68 (fig. 4) formed so as to penetrate the bulge portion 52b in the direction of the center line of the through hole 52a (= the weaving direction). The discharge flow path 68 is formed in a cross-sectional shape along the circumferential direction, which is substantially fan-shaped (fig. 5). Both ends of the discharge flow path 68 are fitted into and sealed by stopper members.

In addition, the housing portion 52 is formed with a communication hole 66, and the communication hole 66 is opened in a space (discharge space) 57 defined by the rubber ring 54 and the oil seal 56 on both sides thereof, and is provided so as to penetrate the discharge space 57 and the discharge flow path 68 so as to communicate with each other. Further, the case portion 52 is provided with a discharge hole 72, and the discharge hole 72 is opened at the center portion in the weaving width direction of the bulge portion 52b, extends in the radial direction of the case portion 52, and is provided so as to penetrate so as to communicate the discharge flow path 68 with the outside. Further, a discharge pipe 74 is attached to the case portion 52, and the discharge pipe 74 extends in the radial direction so as to be fitted into the discharge hole 72 at one end and is connected to the delivery pipe 46 at the other end.

In the intermediate support portion 50, the case portion 52 is attached to the support plate 4 at the bulging portion 52b (in such a manner that the bulging portion 52b faces downward) via the plate-shaped base portion 70. Further, as described above, the discharge pipe 74 is attached to the housing portion 52 so as to extend in the radial direction, and the discharge pipe 74 is connected to the delivery pipe 46 for guiding the discharged lubricant to the reservoir portion. In order to allow the discharge pipe 74 and the lead-out pipe 46 to be arranged, a through hole 70a is formed in the base 70, and a through hole 4a is formed in the support plate 4. Thus, in a state where the intermediate support portion 50 (the case portion 52) is attached to the support plate 4, the delivery pipe 46 provided so as to communicate with the discharge flow path 68 via the discharge pipe 74 is in the form of a storage portion that passes through the support plate 4 and faces downward.

In the intermediate support portion 50 configured as described above, when the lubricant is supplied into the housing space 62 through the supply hole 64, the internal pressure in the housing space 62 increases, and each rubber ring 54 is elastically deformed so as to be pressed outward in the weaving width direction, and the old lubricant (discharged lubricant) flows out to the outside (discharge space 57) of the rubber ring 54. The discharged lubricant passes through the communication holes 66 formed so as to open in the discharge space 57 and the discharge flow path 68 connected to the two communication holes 66, flows into the delivery pipe 46 through the discharge pipe 74, and is discharged to the reservoir.

In this configuration, the discharged lubricant that has fallen through the communication hole 66 is received by the bottom surface of the hole that forms the discharge flow path 68. Therefore, the bottom surface of the hole functions as a receiving portion. Further, since the hole including the bottom surface is provided as the discharge flow path 68 penetrating the housing portion 52, the receiving portion is integrated with the housing portion 52 of the intermediate support portion 50 in this example.

In the above-described example, the case portion itself of the intermediate support portion is formed as the receiving portion as described above, but another component may be attached to the intermediate support portion (case portion) and a part of the other component may be formed as the receiving portion. For example, as in the above example, the case is provided with a bulging portion, and then a groove that is open on the outer peripheral surface and closed at both ends is formed in the bulging portion. The case is provided with a communication hole for communicating the groove with the discharge space described in the above example. In addition, a plate material for closing the opening of the groove is attached to the outer peripheral surface of the protruding portion of the case. Thus, the space formed by the groove and the plate material serves as the discharge flow path described in the above example. In this case, the plate member attached to the case portion has a receiving portion on the side of the groove.

In the above-described example, the lubricant recovery mechanism includes the receiving portion. However, the lubricant recovery mechanism of the present invention is not limited to the one having the receiving portion. For example, in the lubricant recovery mechanism, as shown in the examples of fig. 4 and 5, the case portion is formed with discharge spaces on both sides thereof, and then communication holes for connecting the discharge spaces to the outside are formed. In addition, a delivery pipe is connected to each communication hole via a joint such as a grease nipple. In the lubricant recovery mechanism configured as described above, the discharged lubricant that has flowed down from the discharge space to the respective communication holes directly flows into the delivery pipe, and therefore the lubricant recovery mechanism omits a receiving portion.

(2) With regard to the storage portion, in the above-described embodiment, the storage portion 44 is provided so as to be positioned directly below the corresponding case portion 34 (intermediate support portion 50). However, in the present invention, the storage section is not limited to being provided at such a position, and may be provided in the vicinity of the side frame, for example, below the case section.

The position of the storage portion is not limited to the lower portion of the case portion. For example, as shown in the example of fig. 4 and 5, the case portion is configured such that both sides of the through hole through which the rocker shaft of the case portion is inserted are closed by oil seals, and lubricant is discharged from a discharge space between a space for housing the bearing (a space to which lubricant is supplied) and the oil seals, and in this case, if lubricant is supplied in a state where the discharge space and a flow path for the discharged lubricant including the inside of the delivery pipe are all filled with the discharged lubricant, the discharged lubricant is discharged to the reservoir portion in a squeezed manner, and therefore, the position where the reservoir portion is provided can be set to the same height as the case portion or above the case portion.

In the above embodiment, two storage portions 44 are provided corresponding to the case portions 34 (intermediate support portions 30). However, in the present invention, the storage portion is not limited to being provided for each case portion as described above, and a storage portion (one storage portion) common to all case portions may be provided.

In the above embodiment, the storage section 44 is a tray-shaped member, but the storage section in the present invention is not limited to this, and may be a box-shaped container with a lid, for example. In this case, a through hole is formed in a portion of the cover, and the discharge lubricant can be guided into the reservoir portion by inserting the delivery tube through the through hole.

The present invention is not limited to the above-described examples, and can be modified as appropriate without departing from the scope of the invention.

Claims

1. A water jet loom is provided with: the weft-knitting machine comprises a rocker shaft and a beating-up device, wherein the rocker shaft is erected on a pair of side frames of a loom frame, and the beating-up device supports an intermediate support part of the rocker shaft between the side frames and beats up weft yarns after weft insertion; and a water receiving basin disposed below the rocker shaft and receiving jet water jetted from a weft insertion nozzle, wherein the intermediate support portion has a housing portion in which a bearing is built and which is configured to be able to supply a lubricant for lubricating the bearing to the inside and to discharge an old lubricant to the outside by being supplied with the lubricant,

the beating-up device includes a lubricant recovery mechanism for recovering discharged lubricant that is old lubricant discharged from the casing portion,

the lubricant recovery mechanism includes: a storage part which is arranged separately from the water receiving basin and is configured to store lubricant; and a delivery pipe for guiding the discharged lubricant discharged from the housing portion to the storage portion.

2. The water jet loom of claim 1,

the lubricant recovery mechanism includes a receiving portion provided below the housing portion, receiving the discharged lubricant, and communicating with the delivery pipe, and the storage portion is provided below the receiving portion.