Mechanical weft detection device of water-jet loom

Abstract

The utility model provides a mechanical weft detection device of a water-jet loom, and belongs to the technical field of weft detection devices of water-jet looms. A fixed seat is arranged on the base; a central shaft is arranged on the fixed seat; the first end of the central shaft is fixedly connected with a first connecting rod, and the second end is connected with a second connecting rod; a driving connecting rod is hinged to the other end part of the first connecting rod; the other end part of the second connecting rod is rotationally connected with a weft detecting needle; an extension part is arranged at the top of the weft detection needle; a waterproof proximity switch is arranged on the fixed seat; the waterproof proximity switch is arranged corresponding to the top of the extension part; and the bottom end of the driving connecting rod is connected with a driving mechanism. Compared with an existing photoelectric weft feeler, the photoelectric weft feeler is more stable, misjudgment caused by too hard or too thin weft yarns can be avoided, shutdown of the water jet loom caused by misjudgment can be reduced, and meanwhile working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water jet loom weft thread detecting device technical field, concretely relates to a water jet loom mechanical weft thread detecting device. BACKGROUND

[0002] Water jet loom weft thread detecting device is the water jet loom upper vital automatic stop mechanism, it can detect the weft thread flight bad condition caused by weft thread breakage, weft thread shrinkage or other reasons, and immediately sends the stop signal to the logic control unit, makes the loom park in the specified position. The existing water jet loom weft thread detecting device is photoelectric weft thread detecting device, utilizes photoelectric sensor to detect weft thread, when weft thread is hard, and photoelectric sensor contact is relatively easy to open, leads to the non-detection and stops; in addition, when weft thread is thin, photoelectric sensor detection is easy to not detect and leads to stop, and high stop will influence weaving efficiency. For this, the utility model provides a water jet loom mechanical weft thread detecting device. UTILITY MODEL CONTENT

[0003] The utility model aims at providing a water jet loom mechanical weft thread detecting device.

[0004] To solve the above technical problem, the utility model aims at realizing as follows:

[0005] A water jet loom mechanical weft thread detecting device, including: base, the base is provided with support, the support is provided with fixed seat, the fixed seat is opened with through -hole, the through -hole is rotationally arranged with the central shaft, the first end of the central shaft is fixedly connected with first connecting rod, and the second end is connected with second connecting rod, the other end of the first connecting rod is hinged with drive connecting rod, the other end of the second connecting rod is rotationally connected with weft thread detecting needle, the top of the weft thread detecting needle is provided with extension, the middle part of the second connecting rod is provided with stop block, the rotation range of the weft thread detecting needle can be limited by the stop block, and the extension is elastically connected with spring,

[0006] The fixed seat is provided with waterproof access switch, and the waterproof access switch is correspondingly arranged on the top of the extension.

[0007] The bottom end of the drive connecting rod is connected with drive mechanism.

[0008] On the basis of the above scheme and as the preferred scheme of the above scheme, the drive mechanism includes support rod, the first end of the support rod is hinged with the bottom end of the drive connecting rod, and the second end is connected with the shears transmission shaft of water jet loom.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme, the driving mechanism comprises a third connecting rod; a first end of the third connecting rod is rotationally connected with a connecting part arranged at the bottom of the base, a second end is provided with a roller, and a middle part is hingedly connected with opposite ends of the driving connecting rod; a cam matched with the roller is arranged below the roller; and an axis of the cam is a water jet loom waste yarn false twister transmission shaft.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme, the second connecting rod is in a collet structure at an end connected with the central shaft, is clamped outside the central shaft, and is realized in looseness or tightness through a first bolt.

[0011] On the basis of the above scheme and as a preferred scheme of the above scheme, the stop block is detachably connected with the second connecting rod through a second bolt; and the second bolt is fixedly connected with the second connecting rod and the stop block in a threaded cooperation mode.

[0012] On the basis of the above scheme and as a preferred scheme of the above scheme, a first connecting seat is arranged at the top of the fixed seat; the first connecting seat is in an L shape, one side is fixedly connected with the top of the fixed seat through a third bolt, and the other side is provided with a second connecting seat; the second connecting seat comprises a protruding part, and the waterproof proximity switch is arranged on the protruding part.

[0013] On the basis of the above scheme and as a preferred scheme of the above scheme, a long-strip-shaped opening is arranged on the first connecting seat; the third bolt is in threaded cooperation with the fixed seat in the long-strip-shaped opening; a waist-shaped opening is arranged on the second connecting seat; a fourth bolt is matched in the waist-shaped opening; and the fourth bolt is used for fixing the first connecting seat and the second connecting seat.

[0014] The utility model discloses a driving mechanism drive driving connecting rod movement, driving connecting rod drive first connecting rod and second connecting rod movement, and then drive the weft thread probe up and down reciprocating motion, when the weft thread probe downward motion will insert between two weft yarns, and the weft yarn of limitation will not rotate under the spring elasticity, therefore will not trigger the proximity open light, when the weft thread probe moves down after not weft yarn, it is not blocked, rotates under the spring elasticity, triggers the proximity switch, and sends a signal. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is structure schematic diagram for the utility model embodiment one.

[0016] Figure 2 It is a part structure schematic view of the utility model.

[0017] Figure 3 It is a second connecting rod and weft exploring needle structure schematic view of the utility model.

[0018] Figure 4 It is a structure schematic view of the utility model embodiment two.

[0019] In the drawing: 1, base; 2, driving connecting rod; 3, support; 4, fixed seat; 5, center shaft; 6, first connecting rod; 7, second connecting rod; 8, weft exploring needle; 9, extension; 10, stop block; 11, spring; 12, waterproof proximity switch; 13, support rod; 14, scissor transmission shaft; 15, third connecting rod; 16, connecting portion; 17, roller; 18, cam; 19, first bolt; 20, second bolt; 21, first connecting seat; 22, third bolt; 23, second connecting seat; 24, fourth bolt. DETAILED DESCRIPTION

[0020] The utility model is further explained below in combination with the drawings and specific embodiments.

[0021] Embodiment one:

[0022] As shown in Figure 1 and Figure 2 , a water-jet loom mechanical weft exploring device, comprising: base 1, base 1 is provided with support 3, support 3 is provided with fixed seat 4. Fixed seat 4 is detachably connected on support 3, and the relative position of the two can be adjusted.

[0023] Fixed seat 4 is provided with through hole, and center shaft 5 is rotatably arranged in the through hole. The first end of center shaft 5 is fixedly connected with first connecting rod 6, and the second end is connected with second connecting rod 7.

[0024] Among them, the other end of first connecting rod 6 connected with center shaft 6 is hinged with driving connecting rod 2. The other end of second connecting rod 7 connected with center shaft 6 is rotatably connected with weft exploring needle 8, the top of weft exploring needle 8 is provided with extension 9, and the bottom is a sharp end, which is inserted between weft yarns.

[0025] Preferably, as shown in Figure 3 , the end of second connecting rod 7 connected with center shaft 5 is in the form of a chuck structure, which is clamped outside center shaft 5 and is realized by first bolt 19. When the chuck structure of second connecting rod 7 is loosened by rotating first bolt 19, second connecting rod 7 can be rotated with center shaft 5 to change the relative angle of the two, so as to adjust the position of weft exploring needle 8.

[0026] The middle part of the second connecting rod 7 is provided with a stopper 10, which can block the weft detecting needle 8 and the extension 9 to limit the rotation range of the weft detecting needle 8, and is elastically connected with the extension 9 through a spring 11. The two ends of the spring 11 are connected with the stopper 10 and the extension 9 respectively, and the extension 9 is close to the stopper 10 under the elastic force of the spring 11. The stopper 10 is detachably connected to the second connecting rod 7 through a second bolt 20, and the second bolt 20 is fixedly connected with the stopper 10 in threaded cooperation through the second connecting rod 7. The relative position of the stopper 10 and the second connecting rod 7 can be adjusted by loosening the second bolt 20, so as to change the stretching degree of the spring 11 and the movement range of the weft detecting needle 8.

[0027] The fixed seat 4 is provided with a waterproof access switch 12, which is arranged at the top of the extension 9 and can detect whether the extension 9 passes through the waterproof access switch 12, so as to judge the movement of the weft detecting needle 8.

[0028] Specifically, the fixed seat 4 is provided with a first connecting seat 21 at the top, which is L-shaped, one side is fixedly connected with the top of the fixed seat 4 through a third bolt 22, and the other side is provided with a second connecting seat 23, the second connecting seat 23 includes a protruding part, and the waterproof access switch 12 is arranged on the protruding part. A long strip-shaped opening is formed in the first connecting seat 21, the third bolt 22 is matched in the long strip-shaped opening, and is screwed with the fixed seat 4. After the third bolt 22 is loosened, the first connecting seat 21 can be moved to adjust the position. A waist-shaped opening is formed in the second connecting seat 23, and a fourth bolt 24 is matched in the waist-shaped opening. The fourth bolt 24 is used for fixing the first connecting seat 21 and the second connecting seat 23. The fourth bolt 42 is screwed with the first connecting seat 21 and can move relative to the waist-shaped opening, so as to adjust the relative position of the first connecting seat 21 and the second connecting seat 23.

[0029] The bottom end of the driving connecting rod 2 is connected with a driving mechanism. In the embodiment, the driving mechanism includes a support rod 13, the first end of the support rod 13 is hinged with the bottom end of the driving connecting rod 2, and the second end is connected with a shear transmission shaft 14 of the water jet loom. The shear transmission shaft 14 is used for driving the shear of the water jet loom to move, which is a prior art and will not be described herein. By being connected with the shear transmission shaft 14, no additional driving device is needed, the structure of the device can be reduced, and the cost can be reduced. Since the shear of the water jet loom is a one-open-one-close movement, the transmission shaft reciprocating rotates, the support rod 13 can drive the driving connecting rod 2 to move up and down, the driving connecting rod 2 drives the weft detecting needle 8 to rise and fall through the first connecting rod 6 and the second connecting rod 7, so as to detect whether the weft is woven.

[0030] Embodiment two:

[0031] As Figure 4As shown, the difference between the embodiment and the embodiment one is that the driving mechanism comprises a third connecting rod 15, the first end of the third connecting rod 15 is rotationally connected with a connecting part 16 arranged at the bottom of the base 1, the second end is provided with a roller 17, and the middle part is hingedly connected with the opposite end of the driving connecting rod 2. A cam 18 matched with the roller 17 is arranged below the roller 17, and the shaft of the cam 18 is a water jet loom waste yarn false twister transmission shaft. The water jet loom waste yarn false twister transmission shaft is prior art, which is in a rotating state during work, can drive the cam 18 to rotate, the cam 18 can drive the roller 17 to move, and the roller 17 can drive the third connecting rod 15 to move, thereby driving the weft thread detecting needle 9 to move. The embodiment and the embodiment one are the same, both of which connect the driving mechanism on the accessory of the water jet loom to realize driving, without the need of an additional driving device, the structure is simpler, and the cost is lower.

[0032] The preferred embodiments of the utility model are described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the conception of the utility model without creative labor. Therefore, any technical scheme obtained by logical analysis, reasoning or limited experiment on the basis of the prior art according to the conception of the utility model should be within the protection scope defined by the claims.

Claims

1. A mechanical weft thread detection device for a water jet loom, characterized in that, The utility model provides a kind of water-jet loom weft thread detection device, including: Base (1);The base (1) is provided with support (3);The support (3) is provided with fixed seat (4);The fixed seat (4) is provided with through-hole;The center shaft (5) is rotatably arranged in the through-hole;The first end of the center shaft (5) is fixedly connected with first connecting rod (6), and the second end is connected with second connecting rod (7);The other end of the first connecting rod (6) is hingedly connected with driving link (2);The other end of the second connecting rod (7) is rotatably connected with weft thread detection needle (8);The top of the weft thread detection needle (8) is provided with extension (9);The middle of the second connecting rod (7) is provided with stop block (10);The stop block (10) can limit the rotation range of the weft thread detection needle (8), and is elastically connected with the extension (9) by spring (11); The fixed seat (4) is provided with waterproof access switch (12);The waterproof access switch (12) is provided on the top of the extension (9); The bottom end of the driving link (2) is connected with driving mechanism.

2. A mechanical weft detection device for a water-jet loom according to claim 1, characterized in that, The driving mechanism includes support rod (13);The first end of the support rod (13) is hingedly connected with the bottom end of the driving link (2), and the second end is connected with the shears transmission shaft (14) of water-jet loom.

3. A mechanical weft detection device for a water-jet loom according to claim 1, characterized in that, The driving mechanism includes third connecting rod (15);The first end of the third connecting rod (15) is rotatably connected with the connecting part (16) arranged on the bottom of the base (1), and the second end is provided with roller (17), and the middle is hingedly connected with the opposite end of the driving link (2);The lower side of the roller (17) is provided with cam (18) matched therewith;The shaft of the cam (18) is the transmission shaft of water-jet loom waste silk false twister.

4. A mechanical weft detection device for a water-jet loom according to claim 1, characterized in that, The end of the second connecting rod (7) connected with the center shaft (5) is in the structure of chuck, is arranged outside the center shaft (5), and is realized loose and tight by first bolt (19).

5. A mechanical weft detection device for a water-jet loom according to claim 1, characterized in that, The stop block (10) is detachably connected on the second connecting rod (7) by second bolt (20);The second bolt (20) is fixedly connected with the stop block (10) by screwing through the second connecting rod (7).

6. A mechanical weft detection device for a water-jet loom according to claim 1, characterized in that, The top of the fixed seat (4) is provided with first connecting seat (21);The first connecting seat (21) is L-shaped, one side is fixedly connected with the top of the fixed seat (4) by third bolt (22), and the other side is provided with second connecting seat (23);The second connecting seat (23) includes a protruding part, and the waterproof access switch (12) is arranged on the protruding part.

7. A mechanical weft detection device for a water-jet loom according to claim 6, characterized in that The first connecting seat (21) is provided with long strip-shaped opening hole;The third bolt (22) is screwed in the long strip-shaped opening hole with the fixed seat (4);The second connecting seat (23) is provided with waist-shaped opening hole;The fourth bolt (24) is matched in the waist-shaped opening hole;The fourth bolt (24) is used for fixing the first connecting seat (21) and the second connecting seat (23).

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