CN219239903U - Water spraying mechanism and loom - Google Patents

Abstract

The utility model discloses a water spraying mechanism and a loom, comprising a water pump, a linear driving mechanism and a clutch mechanism; the water pump comprises a pump body, a plunger arranged in a cavity in the pump body, an elastic piece propped between the plunger and the inner wall of the pump body, and a plunger rod connected with the plunger, and the pump body is provided with a water inlet and a water outlet; the clutch mechanism can be switched between a linkage state and an unlink state, when the driving shaft of the linear driving mechanism moves to a first position along a first direction, the clutch mechanism is switched to the unlink state from the linkage state, the driving shaft of the linear driving mechanism is separated from the plunger, the elastic piece pushes the plunger to move along a second direction opposite to the first direction, and when the driving shaft of the linear driving mechanism moves to a second position along the second direction, the clutch mechanism is switched to the linkage state from the unlink state, and the driving shaft of the linear driving mechanism is connected with the plunger. The scheme provides a water spraying mechanism which is more efficient in transmission and convenient for adjusting the water spraying stroke.

Description

Water spraying mechanism and loom

Technical Field

The utility model relates to the technical field of textile weaving, in particular to a water spraying mechanism and a loom.

Background

The weft insertion operation of the water jet loom is mainly completed by a water jet mechanism, and the water jet mechanism ejects a long and thin water flow through a high-pressure pump to drive weft yarns to fly from one section of the loom to the other end, so that the weft yarns and the warp yarns are longitudinally and transversely interwoven.

In the related art, the water spraying mechanism mainly comprises a pump body, a driving mechanism and a water supply system, wherein the pump body mainly comprises a pump chamber, a plunger rod and a spring; the driving mechanism mainly comprises a main shaft, a gear set, a cam shaft, a cam and an L-shaped crank; the water supply system mainly comprises a water tank, a water inlet pipe, a water inlet, a water outlet pipe and a nozzle. The specific working principle is as follows:

the main shaft is a core power source of the loom, the main shaft periodically rotates, the cam shaft and the cam are driven to periodically rotate through the gear set, the high point of the cam and the sliding pair are in one-time tangential action every period, the crank rod of the L-shaped crank is pressed to rotate clockwise around the center of the crank by a small angle, and meanwhile the L-shaped crank rod is connected with the plunger rod. Because crank rod 1 and crank rod are integrated as an organic whole and constitute "L font" crank, when the crank is whole by the tangent effect of cam high point clockwise small angle rotation, the crank rod will produce pulling force effect to the plunger rod, and the plunger rod drives the interior plunger of pump cavity and pulls outward, draws the water in the water tank into the pump cavity through inlet tube and water inlet, and then the water inlet is closed, and the spring that pump cavity and plunger link to each other is in compressed state this moment. With further rotation of the main shaft, the high point of the cam is no longer tangent to the sliding pair on the crank rod, the pump chamber spring is released from the compressed state, the plunger moves rightwards to compress the water in the pump chamber through the water outlet and the nozzle to form an elongated water column with certain pressure and linearity, and when the crank rod collides with the dead point screw, the plunger stops moving and water spraying is finished. Along with the periodical motion of the tangent and separation of the high point of the cam and the sliding pair on the crank rod 1, the spring periodically compresses and resumes the motion, thereby realizing the periodical water sucking and spraying functions. However, the driving mechanism needs to be subjected to multi-stage mechanical transmission, so that the transmission efficiency is low, and the stroke of the plunger is inconvenient to adjust, so that the water spraying stroke is inconvenient to adjust, namely the water spraying amount is inconvenient to adjust.

Disclosure of Invention

The utility model mainly aims to provide a water spraying mechanism and a loom, and aims to provide a water spraying mechanism which is more efficient in transmission and convenient to adjust a water spraying stroke.

In order to achieve the above object, the present utility model provides a water spraying mechanism, comprising: the device comprises a water pump, a linear driving mechanism and a clutch mechanism;

the water pump comprises a pump body, a plunger arranged in a cavity in the pump body, an elastic piece propped between the plunger and the inner wall of the pump body, and a plunger rod connected with the plunger, wherein the pump body is provided with a water inlet and a water outlet;

the clutch mechanism can be switched between a linkage state and an unlink state, when the driving shaft of the linear driving mechanism moves to a first position along a first direction, the clutch mechanism is switched to an unlink state from the linkage state, the driving shaft of the linear driving mechanism is separated from the plunger, the elastic piece pushes the plunger to move along a second direction opposite to the first direction, and when the driving shaft of the linear driving mechanism moves to a second position along the second direction, the clutch mechanism is switched to the linkage state from the unlink state, and the driving shaft of the linear driving mechanism is connected with the plunger;

the drive shaft of the linear drive mechanism is periodically moved between the first position and the second position to periodically pump and spray water from the water pump.

In one embodiment of the utility model, the clutch mechanism comprises a first electromagnet and an armature, one of the first electromagnet and the armature is connected with the driving shaft, and the other is connected with the plunger rod; when the driving shaft moves to a first position along a first direction, the first electromagnet is powered off so as to be disconnected with the armature; when the driving shaft moves to a second position along a second direction, the first electromagnet is electrified to be connected with the armature in a magnetic attraction way.

In one embodiment of the utility model, the clutch mechanism comprises a second electromagnet and a pin;

a limiting block is arranged on the end face of one end, far away from the plunger, of the plunger rod, a limiting hole is formed in the limiting block, and the axial direction of the limiting hole is arranged at an included angle with the first direction;

the second electromagnet is connected with the driving shaft, and the pin is connected with the second electromagnet in a transmission way; when the driving shaft moves to a first position along a first direction, the second electromagnet is powered off so as to drive the pin to be pulled out of the limiting hole; when the driving shaft moves to a second position along a second direction, the second electromagnet is electrified to drive the pin to be inserted into the limiting hole.

In an embodiment of the present utility model, the driving shaft has an end surface close to the pump body and a peripheral surface adjacent to the end surface, the end surface is provided with a slot, the peripheral surface is provided with a communication hole penetrating through the slot, the second electromagnet is arranged on the peripheral surface, and the pin is inserted into the communication hole;

when the driving shaft moves to a second position along a second direction, the communication hole is aligned with the limiting hole, and the second electromagnet is electrified to drive the pin to be inserted into the limiting hole.

In an embodiment of the utility model, the clutch mechanism comprises a first hook, a second hook and a driving structure;

the first hook is arranged at one end of the plunger rod, which is far away from the plunger, the driving structure is connected with the driving shaft, and the second hook is connected with the driving structure in a transmission way; when the driving shaft moves to a first position along a first direction, the driving structure drives the second hook to move so as to separate the second hook from the first hook; when the driving shaft moves to a second position along a second direction, the driving structure drives the second hook to move so that the second hook is buckled with the first hook.

In an embodiment of the present utility model, the second hook includes:

the rotating shaft is arranged on the driving shaft and extends along the vertical direction of the first direction;

the compression bar is rotatably connected with the driving shaft and extends along the first direction;

the hook body is connected to one end, close to the first hook, of the compression bar; one end of the compression bar, which is far away from the first hook, is in transmission connection with the driving structure, and the driving structure can drive the compression bar to rotate by taking the rotating shaft as a rotating axis, so that the hook body is buckled on the first hook or separated from the first hook.

In one embodiment of the present utility model, the driving structure includes:

the elastic body is arranged between the side wall of one end of the compression bar, which is far away from the first hook, and the peripheral surface of the driving shaft;

the support body is arranged on the driving shaft;

the third electromagnet is connected to the supporting body and is positioned at one side of the compression bar far away from the elastic body;

the iron core is arranged in the third electromagnet in a penetrating mode, the third electromagnet is electrified and can drive the iron core to move towards the compression bar so as to compress the elastic body, and the hook body is separated from the first hook; the third electromagnet is powered off, the iron core can be driven to move away from the pressing rod, and the elastic body releases energy so that the hook body is buckled with the first hook.

In an embodiment of the present utility model, a guiding inclined plane is formed on a side of the first hook, which is close to the rotating shaft, and a mating surface corresponding to the guiding inclined plane is formed on a side of the hook body, which is far away from the rotating shaft, and when the driving shaft drives the second hook to move towards the first hook, the mating surface is slidably matched with the guiding inclined plane, so that the compression bar rotates and compresses the elastic body, and after the hook body passes over the first hook, the elastic body releases energy, so that the hook body is buckled with the first hook.

In one embodiment of the utility model, a first one-way valve is arranged at the water inlet;

and/or the water outlet is provided with a second one-way valve.

The utility model also provides a loom, which comprises a weft insertion mechanism and the water spraying mechanism, wherein the weft insertion mechanism comprises a nozzle, and the nozzle is communicated with a water outlet of a water pump of the water spraying mechanism through a pipeline.

In the water spraying mechanism provided by the utility model, the plunger is driven by the linear driving mechanism to reciprocate in the cavity of the pump body through the clutch mechanism so as to realize the functions of periodically sucking water and spraying water, the link of middle multi-stage mechanical transmission is omitted, the transmission is more efficient, meanwhile, the stroke of the driving shaft of the linear driving mechanism can be directly adjusted, namely, the stroke of the plunger can be adjusted, thereby being convenient for adjusting the water spraying stroke and being convenient for adjusting the water spraying quantity.

In addition, the linear driving mechanism is connected with the water pump by adopting a clutch mechanism, and the clutch mechanism can be switched between a linkage state and an unlink state; when the driving shaft of the linear driving mechanism moves to a first position along a first direction, in the process, the clutch mechanism is switched from a linkage state to a non-linkage state, and the driving shaft of the linear driving mechanism is separated from the plunger, so that the plunger is pushed by the elastic piece to move along a second direction opposite to the first direction, and water in the cavity can be sprayed outwards through the water outlet; when the driving shaft of the linear driving mechanism moves to the second position along the second direction, the clutch mechanism is switched from the non-linkage state to the linkage state in the process, the driving shaft of the linear driving mechanism is connected with the plunger, and water in the water supply system can be sucked into the cavity through the water inlet, and meanwhile the plunger compresses the elastic piece.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a water spraying mechanism according to an embodiment of the present utility model in a state in which a first clutch member is linked with a second clutch member;

FIG. 2 is a schematic view of another embodiment of a water spraying mechanism according to the present utility model in a state in which a first clutch member is disengaged from a second clutch member;

FIG. 3 is a schematic view of a water spraying mechanism according to another embodiment of the present utility model in a state in which a first clutch member is disengaged from a second clutch member;

FIG. 4 is a schematic view of a water spraying mechanism according to another embodiment of the present utility model during the linking of the first clutch member and the second clutch member;

FIG. 5 is a schematic view of a water spraying mechanism according to another embodiment of the present utility model in a state in which a first clutch member is linked with a second clutch member;

fig. 6 is a schematic structural view of a water spraying mechanism according to another embodiment of the present utility model during a process of separating the first clutch member from the second clutch member.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The present utility model provides a water spraying mechanism 100, which aims to provide a water spraying mechanism 100 with more efficient transmission and convenient adjustment of water spraying stroke.

The specific structure of the water spraying mechanism 100 of the present utility model will be described below:

referring to fig. 1 to 6 in combination, in an embodiment of the water spraying mechanism 100 of the present utility model, the water spraying mechanism 100 includes a water pump 10, a linear driving mechanism 40 and a clutch mechanism 50, wherein the linear driving mechanism 40 is connected with the water pump 10 through the clutch mechanism 50; the water pump 10 comprises a pump body 11, a plunger 12 arranged in a cavity 111 in the pump body 11, an elastic piece 14 propped between the plunger 12 and the inner wall of the pump body 11, and a plunger rod 13 connected with the plunger 12, wherein the pump body 11 is provided with a water inlet 112 and a water outlet 113; the clutch mechanism 50 is switchable between a linked state and an unlink state, when the driving shaft 41 of the linear driving mechanism 40 moves to a first position in the first direction, the clutch mechanism 50 is switched from the linked state to the unlink state, the driving shaft 41 of the linear driving mechanism 40 is separated from the plunger 12, the elastic member 14 pushes the plunger 12 to move in a second direction opposite to the first direction, and when the driving shaft 41 of the linear driving mechanism 40 moves to a second position in the second direction, the clutch mechanism 50 is switched from the unlink state to the linked state, and the driving shaft 41 of the linear driving mechanism 40 is connected with the plunger 12.

It can be understood that in the water spraying mechanism 100 provided by the utility model, the linear driving mechanism 40 is adopted to drive the plunger 12 to reciprocate in the cavity 111 of the pump body 11 through the clutch mechanism 50, so as to realize the functions of periodically sucking water and spraying water, the link of middle multi-stage mechanical transmission is omitted, the transmission is more efficient, and meanwhile, the stroke of the driving shaft 41 of the linear driving mechanism 40 can be directly adjusted, namely, the stroke of the plunger 12 can be adjusted, so that the water spraying stroke can be conveniently adjusted, and the water spraying amount can be conveniently adjusted.

In addition, since the linear driving mechanism 40 is connected with the water pump 10 by the clutch mechanism 50, the clutch mechanism 50 can be switched between a linked state and an unlink state; when the driving shaft 41 of the linear driving mechanism 40 moves to the first position along the first direction, the clutch mechanism 50 will switch from the linked state to the non-linked state in the process, and the driving shaft 41 of the linear driving mechanism 40 will be separated from the plunger 12, so as to push the plunger 12 to move along the second direction opposite to the first direction through the elastic member 14, so that the water in the chamber 111 can be ejected outwards through the water outlet 113; when the driving shaft 41 of the linear driving mechanism 40 moves to the second position along the second direction, the clutch mechanism 50 will be switched from the non-linked state to the linked state in the process, the driving shaft 41 of the linear driving mechanism 40 will be connected with the plunger 12, i.e. the water in the water supply system 20 can be sucked into the chamber 111 through the water inlet 112, and the plunger 12 compresses the elastic member 14.

Illustratively, the drain of water supply 20 communicates with water inlet 112 of pump body 11; the water inlet of the water outlet system 30 is communicated with the water outlet 113 of the pump body 11; specifically, the water supply system 20 may include the water tank 21 and the water inlet pipe 22, and when the driving shaft 41 of the linear driving mechanism 40 moves to the second position along the second direction, the clutch mechanism 50 is switched from the non-linked state to the linked state in the process, the driving shaft 41 of the linear driving mechanism 40 is connected to the plunger 12, and water in the water tank 21 may be sucked into the chamber 111 through the water inlet pipe 22. The water outlet system 30 may include a water outlet pipe 31 and a nozzle 32, and when the elastic member 14 is released to push the plunger 12 to move to the first position in the first direction, water in the chamber 111 may be sprayed out through the water outlet pipe 31 and the nozzle 32.

Illustratively, the linear drive mechanism 40 may include a stator 42 and a drive shaft 41, the stator 42 may be coupled to the frame of the loom, and the drive shaft 41 may be movably disposed on the stator 42 and may drive the plunger rod 13 and the plunger 12 to move linearly by the clutch mechanism 50. In the specific implementation, the linear driving mechanism 40 may be a linear motor, or may be an actuator having an equivalent linear driving effect, such as a cylinder, an electric cylinder, or a ball screw.

Illustratively, the water pump 10 may have front and back faces disposed opposite each other, and an adjacent face disposed between the front and back faces, the water inlet 112 may open at the adjacent face, the water outlet 113 may open at the front face, and the plunger rod 13 may pass through the back face. Of course, in other embodiments, both the inlet 112 and the outlet 113 may be open at the front and the plunger rod 13 may pass through the back.

Referring to fig. 1 in combination, in one embodiment, the clutch mechanism 50 includes a first electromagnet 51 and an armature 52, one of the first electromagnet 51 and the armature 52 being connected to the drive shaft 41 and the other being connected to the plunger rod 13; when the drive shaft 41 moves in the first direction to the first position, the first electromagnet 51 is deenergized to disconnect from the armature 52; when the drive shaft 41 moves in the second direction to the second position, the first electromagnet 51 is energized to magnetically connect with the armature 52.

So configured, in a specific operation process, the first electromagnet 51 is energized to attract the armature 52, so that the first electromagnet 51 is magnetically connected with the armature 52, the clutch mechanism 50 can be switched from an unlink state to an interlinked state, in this process, the driving shaft 41 of the linear driving mechanism 40 is connected with the plunger 12, so that water in the water supply system 20 can be sucked into the chamber 111 through the water inlet 112, meanwhile, the plunger 12 compresses the elastic element 14, and after the plunger 12 moves to a preset point a (rear dead point), the linear driving mechanism 40 stops working and remains stationary, wherein the position of the rear dead point can be adjusted by a program to adjust the water spraying amount; then, the first electromagnet 51 is powered off, so that the first electromagnet 51 is separated from the armature 52, in this process, the elastic member 14 releases energy to push the plunger 12 to move along the second direction, so that water in the chamber 111 can be sprayed outwards through the water outlet system 30, when the plunger 12 moves to a preset point B (front dead center), the plunger 12 presses water to end, and the repeated steps are repeated, so that the periodic water sucking and spraying functions can be realized.

In addition, in order to ensure that the plunger 12 can precisely move to the front dead point, a stop block can be arranged at one end of the plunger rod 13 extending out of the cavity 111, and a dead point screw is arranged on one side of the pump body 11, and when the stop block abuts against the dead point screw, the plunger 12 can be indicated to move to the preset front dead point. In particular, the dead-centre screw can be connected to the frame of the weaving machine by means of a mounting bracket.

Further, referring to fig. 1 in combination, in an embodiment, in order to make the first electromagnet 51 attract the armature 52 more smoothly after being energized, the first electromagnet 51 may be disposed on an end surface of the driving shaft 41 facing the plunger rod 13, and the armature 52 may be disposed on an end surface of the plunger rod 13 facing the driving shaft 41.

Referring to fig. 2 in combination, in another embodiment, clutch mechanism 50 includes a second electromagnet 53 and a pin 54; a limiting block 131 is arranged on the end face of one end, far away from the plunger 12, of the plunger rod 13, a limiting hole 1311 is formed in the limiting block 131, and the axial direction of the limiting hole 1311 is arranged at an included angle with the first direction; the second electromagnet 53 is connected to the driving shaft 41, and the pin 54 is in transmission connection with the second electromagnet 53; when the driving shaft 41 moves to the first position along the first direction, the second electromagnet 53 is powered off so as to drive the pin 54 to be pulled out from the limiting hole 1311; when the driving shaft 41 moves to the second position in the second direction, the second electromagnet 53 is energized to drive the pin 54 to be inserted into the limiting hole 1311.

So configured, during a specific operation, the driving shaft 41 of the linear driving mechanism 40 may first drive the second electromagnet 53 and the pin 54 to move toward the plunger rod 13, so that the pin 54 is located at one side of the limiting hole 1311; then, the second electromagnet 53 is electrified to drive the pin 54 to insert into the limit hole 1311 so as to switch the clutch mechanism 50 from the non-linkage state to the linkage state, then, the linear driving mechanism 40 works to drive the plunger rod 13 and the plunger 12 to move along the first direction through the cooperation of the pin 54 and the limit hole 1311, so that water in the water supply system 20 can be sucked into the cavity 111 and the elastic piece 14 is compressed, and after the plunger 12 moves to a preset point A (rear dead point), the linear driving mechanism 40 stops working and keeps still, wherein the position of the rear dead point can be adjusted through a program so as to adjust the water spraying amount; then, the second electromagnet 53 is powered off to drive the pin 54 to be pulled out from the limiting hole 1311, so that the clutch mechanism 50 is switched from the linkage state to the non-linkage state, in the process, the elastic element 14 releases energy to drive the plunger rod 13 and the plunger 12 to move along the second direction, so that water in the cavity 111 can be sprayed outwards through the water outlet system 30, and when the plunger 12 moves to a preset point B (front dead center), the plunger 12 presses water to end, and the water sucking and spraying functions can be realized periodically by repeating the steps.

Further, referring to fig. 2 in combination, in an embodiment, in order to improve the stability of the clutch mechanism 50 in the linkage state, the driving shaft 41 may have an end surface close to the pump body 11 and a peripheral surface adjacent to the end surface, so as to open a slot 411 on the end surface, and open a communication hole 412 penetrating through the slot 411 on the peripheral surface, where the second electromagnet 53 is disposed, and the pin 54 is inserted into the communication hole 412;

when the driving shaft 41 moves to the second position in the second direction, the communication hole 412 is aligned with the limit hole 1311, and the second electromagnet 53 is energized to drive the pin 54 to be inserted into the limit hole 1311.

So arranged, when the driving shaft 41 of the linear driving mechanism 40 drives the second electromagnet 53 and the pin 54 to move towards the plunger rod 13, the stopper 131 can be inserted into the slot 411 to align the communication hole 412 with the stopper hole 1311; then, the second electromagnet 53 is electrified to drive the pin 54 to insert into the limit hole 1311, so that the clutch mechanism 50 can be switched from the non-linkage state to the linkage state; when the second electromagnet 53 is de-energized to pull out the driving pin 54 from the limiting hole 1311, the limiting block 131 will be pulled out from the slot 411, so that the clutch mechanism 50 can be switched from the linked state to the non-linked state.

Further, referring to fig. 2 in combination, in an embodiment, in order to further improve the stability of the clutch mechanism 50 in the linkage state, a positioning hole may be formed in the slot 411 facing the slot wall of the communication hole 412, so that the positioning hole is opposite to the communication hole 412.

So arranged, when the drive shaft 41 drives the second electromagnet 53 and the pin 54 to move toward the plunger rod 13, the stopper 131 can be inserted into the slot 411 such that the communication hole 412 and the positioning hole are both in alignment communication with the stopper hole 1311; then, the second electromagnet 53 is electrified to drive the pin 54 to sequentially insert into the limiting hole 1311 and the positioning hole, so that the clutch mechanism 50 can be switched from the non-linkage state to the linkage state; when the second electromagnet 53 is de-energized, the driving pin 54 is sequentially pulled out from the positioning hole and the limiting hole 1311, and the limiting block 131 is pulled out from the slot 411, so that the clutch mechanism 50 is switched from the linked state to the non-linked state.

Referring to fig. 3 to 6 in combination, in yet another embodiment, the clutch mechanism 50 includes a first hook 55, a second hook 56, and a driving structure 57; the first hook 55 is arranged at one end of the plunger rod 13 far away from the plunger 12, the driving structure 57 is connected with the driving shaft 41, and the second hook 56 is in transmission connection with the driving structure 57; when the driving shaft 41 moves to the first position in the first direction, the driving structure 57 drives the second hook 56 to move so as to separate the second hook 56 from the first hook 55; when the driving shaft 41 moves to the second position along the second direction, the driving structure 57 drives the second hook 56 to move, so that the second hook 56 is buckled with the first hook 55.

In the specific working process, the driving shaft 41 of the linear driving mechanism 40 drives the second hook 56 to move towards the plunger rod 13, in the working process, the driving structure 57 works to smoothly drive the second hook 56 to move so that the second hook 56 is buckled behind the first hook 55, the linear driving mechanism 40 works to drive the plunger rod 13 and the plunger 12 to move along the first direction through the cooperation of the first hook 55 and the second hook 56, water in the water supply system 20 can be sucked into the cavity 111 and the elastic element 14 is compressed, and after the plunger 12 moves to a preset point A (rear dead point), the linear driving mechanism 40 stops working and keeps still, wherein the position of the rear dead point can be adjusted through a program so as to adjust the water spraying amount; then, when the driving structure 57 works to drive the second hook 56 to move, so that the first hook 55 and the second hook 56 are separated, the elastic element 14 releases energy to drive the plunger rod 13 and the plunger 12 to move along the second direction, so that water in the chamber 111 can be sprayed outwards through the water outlet system 30, and when the plunger 12 moves to a preset point B (front dead center), the plunger 12 presses water to end, and the repeated steps are repeated, so that the periodical water sucking and spraying functions can be realized.

Further, referring to fig. 3 to 6 in combination, in one embodiment, the second hook 56 includes a rotating shaft 561, a pressing rod 562, and a hook body 563; the rotating shaft 561 is provided on the driving shaft 41 and extends in a direction perpendicular to the first direction; the pressing rod 562 is rotatably connected with the driving shaft 41 and extends along the first direction; the hook body 563 is connected to one end of the compression bar 562 near the first hook 55; one end of the pressing rod 562 away from the first hook 55 is connected to the driving structure 57 in a transmission manner, and the driving structure 57 can drive the pressing rod 562 to rotate by taking the rotating shaft 561 as a rotation axis, so that the hook body 563 is buckled on the first hook 55 or separated from the first hook 55.

So configured, the driving structure 57 works to drive the pressing rod 562 to rotate with the rotating shaft 561 as a rotation axis (e.g. drive the pressing rod 562 to rotate clockwise), so that the hook body 563 can be buckled with the first hook 55; similarly, the driving structure 57 works to drive the pressing rod 562 to rotate about the rotation axis 561 (e.g. drive the pressing rod 562 to rotate counterclockwise), so that the hook body 563 can be separated from the first hook 55.

Further, referring to fig. 3 to 6 in combination, in one embodiment, the driving structure 57 includes an elastic body 571, a supporting body 572, a third electromagnet 573, and an iron core 574; the elastic body 571 is arranged between the side wall of one end of the pressing rod 562, which is far away from the first hook 55, and the peripheral surface of the driving shaft 41; the supporting body 572 is provided on the drive shaft 41; the third electromagnet 573 is connected to the supporting body 572 and is located at a side of the pressing rod 562 away from the elastic body 571; the iron core 574 is arranged through the third electromagnet 573, the third electromagnet 573 is electrified to drive the iron core 574 to move towards the compression bar 562 so as to compress the elastic body 571, and the hook body 563 is separated from the first hook 55; the third electromagnet 573 is powered off, so that the iron core 574 can be driven to move away from the compression bar 562, and the elastic body 571 releases energy, so that the hook body 563 is buckled with the first hook 55.

So configured, when the linear driving mechanism 40 drives the second hook 56 to approach the first hook 55, the third electromagnet 573 is powered off, so that the iron core 574 can be driven to move away from the compression rod 562, and when the hook 563 passes over the first hook 55, the elastic body 571 releases energy to drive the compression rod 562 to rotate, so that the hook 563 is buckled with the first hook 55; when the third electromagnet 573 is energized, the drivable iron core 574 moves toward the pressing rod 562, so as to drive the pressing rod 562 to rotate and compress the elastic body 571, and in this process, the hook body 563 will be separated from the first hook 55. Of course, the driving iron core 574 may be retracted to move away from the pressing rod 562 in a state where the third electromagnet 573 is energized, and the driving iron core 574 may be extended to move toward the pressing rod 562 in a state where the third electromagnet 573 is deenergized.

Further, referring to fig. 3 to 6 in combination, in an embodiment, a guiding inclined plane 551 is formed on a side of the first hook 55 near the rotating shaft 561, a matching surface 5631 corresponding to the guiding inclined plane 551 is formed on a side of the hook body 563 far away from the rotating shaft 561, when the driving shaft 41 drives the second hook 56 to move towards the first hook 55, the matching surface 5631 is slidingly matched with the guiding inclined plane 551, so that the compression rod 562 rotates and compresses the elastic body 571, and after the hook body 563 passes over the first hook 55, the elastic body 571 releases energy, so that the hook body 563 is buckled with the first hook 55.

In this way, the driving shaft 41 of the linear driving mechanism 40 can drive the second hook 56 to move towards the first hook 55, when the matching surface 5631 of the hook body 563 abuts against the guiding inclined surface 551 of the first hook 55, the driving shaft 41 continues to drive the second hook 56 to move towards the first hook 55, the matching surface 5631 of the hook body 563 will slidingly cooperate with the guiding inclined surface 551 of the first hook 55, and drive the pressing rod 562 to rotate and compress the elastic body 571 under the guidance of the guiding inclined surface 551, the driving shaft 41 continues to drive the second hook 56 to move towards the first hook 55, until the hook body 563 passes over the first hook 55, the elastic body 571 releases energy to drive the pressing rod 562 to rotate, so that the hook body 563 can be buckled with the first hook 55, therefore, in the process of buckling the hook body 563 with the first hook 55, namely in the process of switching the clutch mechanism 50 from the non-linked state to the linked state, the power is not needed to be output, and the power can be provided directly through the elastic body 571, so that the power consumption can be saved.

Referring to fig. 1 and 2 in combination, in one embodiment, a first check valve 1121 is provided at the water inlet 112; in this manner, water in the water supply 20 may be drawn into the chamber 111 through the first one-way valve 1121 when the plunger 12 is moved in the first direction, and water in the chamber 111 may be prevented from flowing back into the water supply 20 when the plunger 12 is moved in the second direction.

Likewise, a second one-way valve 1131 is provided at the water outlet 113; in this manner, when the plunger 12 moves in the first direction, water in the water outlet system 30 is prevented from flowing back into the chamber 111, and when the plunger 12 moves in the second direction, water in the chamber 111 can be flowed to the water outlet system 30 through the second check valve 1131 to be sprayed outward through the water outlet system 30.

The utility model also provides a loom, which comprises a weft insertion mechanism and the water spraying mechanism 100, wherein the weft insertion mechanism comprises a nozzle, the nozzle is communicated with a water outlet of a water pump of the water spraying mechanism through a pipeline, the specific structure of the water spraying mechanism 100 can refer to the embodiment, and the loom adopts all the technical schemes of all the embodiments, so that the loom has at least all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (7)

1. A water spray mechanism, comprising: the device comprises a water pump, a linear driving mechanism and a clutch mechanism;

the water pump comprises a pump body, a plunger arranged in a cavity in the pump body, an elastic piece propped between the plunger and the inner wall of the pump body, and a plunger rod connected with the plunger, wherein the pump body is provided with a water inlet and a water outlet;

the clutch mechanism can be switched between a linkage state and an unlink state, when the driving shaft of the linear driving mechanism moves to a first position along a first direction, the clutch mechanism is switched to an unlink state from the linkage state, the driving shaft of the linear driving mechanism is separated from the plunger, the elastic piece pushes the plunger to move along a second direction opposite to the first direction, and when the driving shaft of the linear driving mechanism moves to a second position along the second direction, the clutch mechanism is switched to the linkage state from the unlink state, and the driving shaft of the linear driving mechanism is connected with the plunger;

a drive shaft of the linear drive mechanism periodically moves between the first position and the second position to periodically pump water and spray water from the water pump;

the clutch mechanism comprises a second electromagnet and a pin; a limiting block is arranged on the end face of one end, far away from the plunger, of the plunger rod, a limiting hole is formed in the limiting block, and the axial direction of the limiting hole is arranged at an included angle with the first direction; the second electromagnet is connected with the driving shaft, and the pin is connected with the second electromagnet in a transmission way; when the driving shaft moves to a first position along a first direction, the second electromagnet is powered off so as to drive the pin to be pulled out of the limiting hole; when the driving shaft moves to a second position along a second direction, the second electromagnet is electrified to drive the pin to be inserted into the limiting hole;

or the clutch mechanism comprises a first hook, a second hook and a driving structure; the first hook is arranged at one end of the plunger rod, which is far away from the plunger, the driving structure is connected with the driving shaft, and the second hook is connected with the driving structure in a transmission way; when the driving shaft moves to a first position along a first direction, the driving structure drives the second hook to move so as to separate the second hook from the first hook; when the driving shaft moves to a second position along a second direction, the driving structure drives the second hook to move so that the second hook is buckled with the first hook.

2. The water spraying mechanism as claimed in claim 1, wherein when the clutch mechanism includes a second electromagnet and a pin, the driving shaft has an end face near the pump body and a peripheral face disposed adjacent to the end face, the end face is provided with a slot, the peripheral face is provided with a communication hole penetrating to the slot, the second electromagnet is provided on the peripheral face, and the pin is inserted in the communication hole;

when the driving shaft moves to a second position along a second direction, the communication hole is aligned with the limiting hole, and the second electromagnet is electrified to drive the pin to be inserted into the limiting hole.

3. The water spray mechanism of claim 1 wherein when said clutch mechanism comprises a first shackle, a second shackle and a driving structure, said second shackle comprises:

the rotating shaft is arranged on the driving shaft and extends along the vertical direction of the first direction;

the compression bar is rotatably connected with the driving shaft and extends along the first direction;

the hook body is connected to one end, close to the first hook, of the compression bar; one end of the compression bar, which is far away from the first hook, is in transmission connection with the driving structure, and the driving structure can drive the compression bar to rotate by taking the rotating shaft as a rotating axis, so that the hook body is buckled on the first hook or separated from the first hook.

4. The water spray mechanism of claim 3 wherein said drive structure comprises:

the elastic body is arranged between the side wall of one end of the compression bar, which is far away from the first hook, and the peripheral surface of the driving shaft;

the support body is arranged on the driving shaft;

the third electromagnet is connected to the supporting body and is positioned at one side of the compression bar far away from the elastic body;

the iron core is arranged in the third electromagnet in a penetrating mode, the third electromagnet is electrified and can drive the iron core to move towards the compression bar so as to compress the elastic body, and the hook body is separated from the first hook; the third electromagnet is powered off, the iron core can be driven to move away from the pressing rod, and the elastic body releases energy so that the hook body is buckled with the first hook.

5. The water spraying mechanism of claim 4, wherein a guiding inclined plane is formed on a side of the first hook, which is close to the rotating shaft, a matching surface corresponding to the guiding inclined plane is formed on a side of the hook body, which is far away from the rotating shaft, and when the driving shaft drives the second hook to move towards the first hook, the matching surface is in sliding fit with the guiding inclined plane, so that the pressing rod rotates and compresses the elastic body, and after the hook body passes over the first hook, the elastic body releases energy, so that the hook body is buckled with the first hook.

6. The water spraying mechanism as claimed in any one of claims 1 to 5, wherein a first one-way valve is provided at the water inlet;

and/or the water outlet is provided with a second one-way valve.

7. A weaving machine, characterized in that it comprises a weft insertion mechanism and a water jet mechanism according to any one of claims 1 to 6, said weft insertion mechanism comprising a nozzle which communicates by means of a pipe with the water outlet of the water pump of the water jet mechanism.

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