A plunger suitable for use on wide-width water jet looms

Abstract

This utility model relates to the field of water jet loom technology and discloses a plunger suitable for use in wide-width water jet looms. It includes an outer tube with a core moving inside it. One end of the outer tube has a lubrication mechanism for lubricating the outer wall of the core. The lubrication mechanism, detachably mounted at the top of the outer tube, is fitted over the core. A cavity is provided inside the rotating ring, and lubricating fluid is injected under high pressure through an oil injection nozzle into the cavity. As the core moves along the inner side of the outer tube, the lubricating fluid inside the lubrication mechanism coats the outer wall of the core, reducing the coefficient of friction between the core and the inner wall of the outer tube, thereby extending the core's service life. An external thread at the bottom of the lubrication mechanism allows for quick installation at the top of the outer tube, facilitating rapid installation and convenient use.

Description

Technical Field

[0001] This utility model relates to the field of water jet loom technology, specifically to a plunger suitable for use in wide-width water jet looms. Background Technology

[0002] Water jet looms are shuttleless looms that use water jets to pull the weft yarn to complete the weft insertion operation. They are mainly used in the field of chemical fiber filament fabric manufacturing. Their core technology is to achieve high-density warp and weft yarn interlacing through high-pressure water jets, which has the characteristics of stable fabric quality and high production efficiency.

[0003] Chinese patent CN211947412U discloses a plunger for a water-jet loom, belonging to the field of water-jet loom technology. It includes an outer tube, an inner tube, and a through hole. The inner tube is embedded within the through hole of the outer tube, and the inner tube has an inner hole. A metal ring is integrally formed on the upper surface of the inner tube, and a rectangular block is integrally formed on the surface of the inner tube below the metal ring. The rectangular block is inserted into an L-shaped groove in the through hole of the outer tube from the top. A ceramic tube is sleeved on the surface of the inner tube below the rectangular block. By using the L-shaped groove and the rectangular block, the rectangular block slides along the L-shaped groove at the top of the through hole of the outer tube. The arc-shaped top of the rectangular block slides against the arc-shaped bottom of the L-shaped groove, allowing the rectangular block to slide into the bottom of the L-shaped groove. Then, it slides along the transverse groove of the L-shaped groove, fixing the rectangular block in the rectangular groove at the tail end of the L-shaped groove. This sliding engagement and fixation of the rectangular block and the L-shaped groove solves the problem of loose connection between the inner and outer tubes of the plunger.

[0004] However, during the use of this device, the L-shaped groove and the rectangular block are squeezed against each other for a long time, which increases the coefficient of friction. As the diameter of the inner and outer tubes increases, the wear surface between the inner and outer tubes also increases, which is not conducive to long-term use. Therefore, those skilled in the art provide a plunger suitable for use in wide-width water jet looms to solve the problems mentioned in the background art. Summary of the Invention

[0005] The purpose of this invention is to provide a plunger suitable for use on wide-width water jet looms, thereby solving the problems in the prior art.

[0006] This utility model provides the following technical solution: a plunger suitable for use in wide-width water jet looms, comprising an outer tube, wherein a core for moving inside the outer tube is provided, and a lubrication mechanism for lubricating the outer wall of the core is provided at one end of the outer tube.

[0007] As a preferred embodiment of the above technical solution, one end of the outer tube is provided with a connecting thread for connecting the base, the end of the outer tube away from the connecting thread is provided with a disassembly groove for facilitating the fixing and rotation of the outer tube, and the inner end of the outer tube near the disassembly groove is fixedly provided with an internal thread.

[0008] As a preferred embodiment of the above technical solution, the core has an inner hole, the core diameter matches the inner diameter of the outer tube, and the outer tube is movably sleeved on the outside of the core.

[0009] As a preferred embodiment of the above technical solution, the lubrication mechanism includes a rotating ring with the same diameter as the inner wall diameter of the outer tube. Multiple anti-slip grooves are fixedly provided at equal intervals on the upper outer side of the lubrication mechanism, and external threads are fixedly provided at the bottom of the multiple anti-slip grooves.

[0010] As a preferred embodiment of the above technical solution, the rotating ring has a cavity inside, and the rotating ring on the inner side of the cavity has multiple through holes at equal intervals. Multiple positioning posts are fixedly installed on the side of the cavity away from the multiple through holes. One end of the multiple positioning posts is fixed to the inner wall of the cavity, and multiple springs are fixedly sleeved on the other end of each of the multiple positioning posts. Multiple beads are sleeved on the top end of the multiple springs away from the positioning posts, and the multiple beads are locked inside the multiple through holes.

[0011] As a preferred embodiment of the above technical solution, an oil injection nozzle is fixedly provided on the outside of the lubrication mechanism, and the bottom of the oil injection nozzle penetrates through the outer wall of the lubrication mechanism and is fixedly connected to the cavity.

[0012] As a preferred embodiment of the above technical solution, the external thread and the internal thread are connected by a thread.

[0013] As a preferred embodiment of the above technical solution, lubricant is injected into the cavity through an oil injection nozzle.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model has a detachable lubrication mechanism at the top of the outer tube, which is sleeved on the outside of the core. The rotating ring has a cavity inside, and lubricating fluid is injected into the cavity under high pressure through an oil injection nozzle. When the core moves along the inside of the outer tube, the lubricating fluid inside the lubrication mechanism is coated onto the outer wall of the core, reducing the coefficient of friction between the core and the inner wall of the outer tube, thereby extending the service life of the core.

[0016] 2. This utility model provides an external thread at the bottom of the lubrication mechanism, allowing the lubrication mechanism to be quickly installed on the top of the outer tube, which is convenient for operators to install quickly and is easy to use and operate. Attached Figure Description

[0017] Figure 1 A schematic diagram of the main structure of a plunger suitable for use on a wide-width water jet loom;

[0018] Figure 2 A schematic diagram of the outer tube structure of a plunger suitable for use on a wide-width water jet loom;

[0019] Figure 3A schematic diagram of a plunger lubrication mechanism suitable for use on a wide-width water jet loom;

[0020] Figure 4 A top view schematic diagram of a plunger lubrication mechanism suitable for use on a wide-width water jet loom;

[0021] Figure 5 A schematic diagram of the internal structure of a plunger lubrication mechanism suitable for use on a wide-width water jet loom;

[0022] Figure 6 This is a schematic diagram of a quick-connect structure for the lubrication mechanism of a plunger suitable for use on a wide-width water jet loom.

[0023] Outer tube; 101, connecting thread; 102, disassembly groove; 103, internal thread; 2, core; 201, inner hole; 3, lubrication mechanism; 301, rotating ring; 302, anti-slip groove; 303, external thread; 304, cavity; 305, ball; 306, positioning pin; 307, spring; 308, through hole; 309, oil nozzle. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Please see Figure 1 As shown, this utility model provides a technical solution: a plunger suitable for use in a wide-width water jet loom, including an outer tube 1, a core 2 for moving inside the outer tube 1, and a lubrication mechanism 3 for lubricating the outer wall of the core 2 at one end of the outer tube 1.

[0026] The lubrication mechanism 3 is located at the top of the outer tube 1. The inner diameter of the lubrication mechanism 3 is the same as the inner diameter of the outer tube 1. The core 2 is sleeved inside the outer tube 1 and the lubrication mechanism 3. The core 2 moves up and down along the inside of the outer tube 1.

[0027] As one implementation method in this embodiment, please refer to Figure 2 As shown, the outer wall of one end of the outer tube 1 is provided with a connecting thread 101 for connecting the base, and the outer wall of the outer tube 1 away from the connecting thread 101 is provided with a disassembly groove 102 for fixing and rotating the outer tube 1. The inner end of the outer tube 1 near the disassembly groove 102 is fixedly provided with an internal thread 103.

[0028] The bottom end of the outer tube 1 is provided with a connecting thread 101, which is connected to the equipment base. The top end of the outer tube 1 is provided with a disassembly groove 102. By rotating the outer tube 1, which is clamped outside the disassembly groove 102, the connecting thread 101 is fastened to the upper end of the equipment base. The upper end of the equipment base is provided with an inner thread that matches the connecting thread 101 for connection.

[0029] As one implementation method in this embodiment, please refer to Figure 1 As shown, the core 2 has an inner hole 201 inside, the diameter of the core 2 matches the inner diameter of the outer tube 1, and the outer tube 1 is movably sleeved on the outside of the core 2.

[0030] The core 2 has an inner hole 201 inside, which is used to allow cooling water to flow through (not shown in the figure).

[0031] As one implementation method in this embodiment, please refer to Figure 3 As shown, the lubrication mechanism 3 includes a rotating ring 301 with the same diameter as the inner wall diameter of the outer tube 1. Multiple anti-slip grooves 302 are fixedly provided at equal intervals on the upper outer side of the lubrication mechanism 3, and external threads 303 are fixedly provided at the bottom of the multiple anti-slip grooves 302.

[0032] Multiple anti-slip grooves 302 facilitate the operator to tighten the lubrication mechanism 3 at the top of the outer tube 1. The diameter of the rotating ring 301 is the same as the diameter of the outer tube 1, so that the diameter of the rotating ring 301 of the lubrication mechanism 3 is the same as the inner diameter of the outer tube 1, which facilitates the lubrication mechanism 3 and the inner part of the outer tube 1 to have no external difference in contact. The rotating ring 301 and the inner part of the outer tube 1 form a complete body, so that the core 2 is fitted inside the outer tube 1 and moves to reduce friction.

[0033] As one implementation method in this embodiment, please refer to Figures 3-5 As shown, the lubrication mechanism 3 has a cavity 304 inside. The rotating ring 301 on the inner side of the cavity 304 has multiple through holes 308 at equal intervals. Multiple positioning posts 306 are fixedly installed on the side of the cavity 304 away from the multiple through holes 308. One end of the multiple positioning posts 306 is fixed to the inner wall of the cavity 304. Multiple springs 307 are fixedly sleeved on the other end of the multiple positioning posts 306. Multiple balls 305 are sleeved on the top end of the multiple springs 307 away from the positioning posts 306. The multiple balls 305 are locked inside the multiple through holes 308.

[0034] Taking one of the beads 305 as an example, one side of the bead 305 is attached to the inner diameter circle of the through hole 308, and the other side of the bead 305 is fitted with a spring 307. The spring 307 has a conical structure. One end of the spring 307 is fitted on the outside of the bead 305, and the other end of the spring 307 is fitted on the top of the positioning post 306. The spring 307 causes the bead 305 to press against the through hole 308. The diameter of the through hole 308 is smaller than the diameter of the bead 305, so that the bead 305 passes through the through hole 308 and a portion of the bead 305 is inside the rotating ring 301. The positioning post 306 is set with the same central axis as the through hole 308.

[0035] When the outer wall of the core 2 is pressed onto the ball 305, the ball 305 moves toward the positioning post 306, and the lubricant inside the cavity 304 flows into the rotating ring 301 through the through hole 308. The core 2 adheres to the rotating ring 301, that is, the lubricant is also applied to the outer wall of the core 2, thereby reducing the friction between the core 2 and the outer tube 1 and extending the service life of the core 2.

[0036] As one implementation method in this embodiment, please refer to Figures 4-5 As shown, an oil injection nozzle 309 is fixedly provided on the outside of the lubrication mechanism 3, and the bottom of the oil injection nozzle 309 penetrates the outer wall of the lubrication mechanism 3 and is fixedly connected to the cavity 304.

[0037] Lubricant is injected into the cavity 304 through the grease nipple 309, and pressure is also injected into the cavity 304 at the same time. The pressure can cause the lubricant to flow along the through hole 308 to the rotating ring 301.

[0038] As one implementation method in this embodiment, please refer to Figure 3 and Figure 6 As shown, there is a threaded connection between the external thread 303 and the internal thread 103.

[0039] The lubrication mechanism 3 is provided with an external thread 303 at the bottom, which allows the lubrication mechanism 3 to be quickly installed on the top of the outer tube 1, making it convenient for operators to install, use and operate.

[0040] As one implementation method in this embodiment, please refer to Figures 4-5 As shown, lubricant is injected into cavity 304 through grease nipple 309.

[0041] Working principle: Lubricant is injected into the cavity 304 through the grease nipple 309. At the same time, pressure is also injected into the cavity 304. The pressure causes the lubricant to flow along the through hole 308 to the rotating ring 301. When the outer wall of the core 2 is pressed against the ball 305, the ball 305 moves towards the positioning post 306. Meanwhile, the lubricant inside the cavity 304 flows into the rotating ring 301 through the through hole 308. The core 2 adheres to the rotating ring 301, meaning that the lubricant is also applied to the outer wall of the core 2, thereby reducing the friction between the core 2 and the outer tube 1 and extending the service life of the core 2.

[0042] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A piston suitable for use in a wide-width water-jet loom, comprising an outer tube (1), characterised in that: The outer tube (1) is provided with a core (2) for moving inside the outer tube (1), and one end of the outer tube (1) is provided with a lubrication mechanism (3) for lubricating the outer wall of the core (2).

2. A ram suitable for use on a wide-width water-jet loom according to claim 1, characterised in that: The outer tube (1) has a connecting thread (101) on one end of its outer wall, and a disassembly groove (102) is provided at the end of the outer wall of the outer tube (1) away from the connecting thread (101) to facilitate fixing and rotating the outer tube (1). An internal thread (103) is fixedly provided at the end of the outer tube (1) near the disassembly groove (102).

3. A ram suitable for use on a wide-width water-jet loom according to claim 1, characterized in that: The core (2) has an inner hole (201) inside, the diameter of the core (2) matches the inner diameter of the outer tube (1), and the outer tube (1) is movably sleeved on the outside of the core (2).

4. A ram suitable for use on a wide-width water-jet loom according to claim 1, characterized in that: The lubrication mechanism (3) includes a rotating ring (301), the diameter of which is the same as the inner wall diameter of the outer tube (1). Multiple anti-slip grooves (302) are fixedly provided at equal intervals on the upper outer side of the lubrication mechanism (3), and external threads (303) are fixedly provided at the bottom of the multiple anti-slip grooves (302).

5. A ram suitable for use in a wide-width water-jet loom according to claim 4, characterised in that: The rotating ring (301) has a cavity (304) inside. The rotating ring (301) on the inner side of the cavity (304) has a plurality of through holes (308) at equal intervals. A plurality of positioning posts (306) are fixedly provided on the side of the cavity (304) away from the plurality of through holes (308). One end of the plurality of positioning posts (306) is fixed to the inner wall of the cavity (304). A plurality of springs (307) are fixedly sleeved on the other end of the plurality of positioning posts (306). A plurality of round beads (305) are sleeved on the end of the top of the plurality of springs (307) away from the positioning posts (306). The plurality of round beads (305) are locked inside the plurality of through holes (308).

6. A ram according to claim 5 suitable for use in a wide-width water-jet loom, characterised in that: The lubrication mechanism (3) is fixedly provided with an oil injection nozzle (309) on the outside. The bottom of the oil injection nozzle (309) passes through the outer wall of the lubrication mechanism (3) and is fixedly connected to the cavity (304).

7. A ram suitable for use on a wide-width water-jet loom according to claim 4, characterised in that: The external thread (303) and the internal thread (103) are threaded together.

8. A ram according to claim 5 suitable for use in a wide-width water-jet loom, characterized in that: Lubricating fluid is injected into the cavity (304) through the grease nipple (309).

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