CN115652525B - Weft thread feeding device of fishing net machine and adjusting method - Google Patents
Weft thread feeding device of fishing net machine and adjusting method Download PDFInfo
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- CN115652525B CN115652525B CN202211180090.8A CN202211180090A CN115652525B CN 115652525 B CN115652525 B CN 115652525B CN 202211180090 A CN202211180090 A CN 202211180090A CN 115652525 B CN115652525 B CN 115652525B
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- 229910000746 Structural steel Inorganic materials 0.000 description 7
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- 239000004677 Nylon Substances 0.000 description 2
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- 229920001778 nylon Polymers 0.000 description 2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The invention discloses a weft thread feeding device of a fishing net machine and an adjusting method thereof in the field of the fishing net machine, comprising a shuttle box, wherein the shuttle box is arranged at the top of the rear end of a frame, two ends of the shuttle box are provided with reset structures, the lower part of the rear side of the shuttle box is provided with a swinging structure matched with a lower hook shaft, the swinging structure is provided with an adjusting structure in a matched manner, the lower hook shaft is connected with a power structure, and the power structure is arranged at one side of the frame; the lower hook shaft is driven to rotate back and forth in a certain angle range through the cooperation of the reset structure and the power structure, so that the swing structure swings back and forth through the lower hook shaft, the shuttle box is pulled to swing back and forth, the weft periodic wire feeding is realized when the fishing net is woven, the mesh size determined according to the actual production requirement can be realized, the swing amplitude of the shuttle box is adjusted through the adjusting structure, and the adjustment of the weft wire feeding quantity is realized.
Description
Technical Field
The invention relates to a weft thread feeding device and an adjusting method in the field of fishing net machines.
Background
Compared with the traditional manual net weaving mode, the fishing net machine greatly improves labor productivity and product quality, and has great influence on the development of the fishing net industry in China. The production process of the fishing net machine mainly comprises the following parameters: knot type, shuttle distance (cm), width, wire coil diameter, net wire used, mesh size, working rotation speed, main motor power (r/min), external size and whole machine weight (kg). The raw material net wires used are also classified into polyethylene, nylon wires, nylon monofilaments and the like. The net thread used when the fishing net is woven by the fishing net machine divides the warp and the weft, wherein the thread feeding of the weft is realized by the reciprocating motion of the shuttle box. In the prior art, the reciprocating motion of the shuttle box is realized through a series of multi-group connecting rod combinations, and the transmission process of the structure is complex due to the fact that a plurality of connecting rods are adopted, the transmission structure is complex, the accuracy of the feeding amount is insufficient, the adjusting process is complex, and the production efficiency is low.
Disclosure of Invention
The invention aims to provide a weft thread feeding device of a fishing net machine and an adjusting method, which have the advantages of simpler structure, reduced manufacturing cost, high weft thread feeding precision and more convenient adjustment.
In order to achieve the above purpose, the invention provides a weft thread feeding device of a fishing net machine, which comprises a shuttle box, wherein the shuttle box is arranged at the top of the rear end of a frame, reset structures are arranged at two ends of the shuttle box, a swinging structure matched with a lower hook shaft is arranged at the lower part of the rear side of the shuttle box, an adjusting structure is arranged in the swinging structure in a matched manner, the lower hook shaft is connected with a power structure, and the power structure is arranged at one side of the frame.
Compared with the prior art, the automatic thread feeding device has the beneficial effects that the reset structure and the power structure are matched to drive the lower hook shaft to rotate back and forth within a certain angle range, so that the swing structure swings back and forth through the lower hook shaft, and then the shuttle box is pulled to swing back and forth, so that the periodic thread feeding of wefts is realized when a fishing net is woven, the size of a defined mesh can be determined according to actual production requirements, and the swing amplitude of the shuttle box is regulated through the regulation structure, so that the adjustment of the thread feeding quantity of wefts is realized.
As a further improvement of the invention, the swing structure comprises a swing arm cam, the swing arm cam is sleeved on the lower hook shaft, the swing arm cam is matched with the adjusting structure, the adjusting structure is arranged on the swing arm, the upper end of the swing arm is connected with the upper supporting seat, the upper supporting seat is connected with the lower part of the rear side of the shuttle box, the lower end of the swing arm is hinged with the lower supporting seat, and the lower supporting seat is arranged on the square beam at the lower part of the rear end of the frame.
The lower hook rotates, the swing arm cam is in contact with the adjusting structure on the swing arm, the swing arm is pushed to swing backwards by taking the lower end of the swing arm as the center, the shuttle box is driven to move backwards, the swing arm cam rotates backwards to the limit position, at the moment, no thrust is generated on the adjusting structure, the reset structure can pull the shuttle box to move backwards, the swing arm is pushed to swing backwards, after the swing arm cam is in contact with the adjusting structure again, the swing arm is enabled to rotate backwards again, periodic back and forth swinging is formed, the shuttle box moves backwards and forwards, and periodic thread feeding of wefts is achieved.
As a further improvement of the invention, the adjusting structure comprises an adjusting bearing matched with the swing arm cam, the adjusting bearing is sleeved on the pin shaft, one end of the pin shaft passes through an adjusting groove arranged on the swing arm and is fixed through a nut, the swing arm is provided with a mounting plate, the mounting plate is provided with a threaded hole, the threaded hole is connected with a screw rod in a threaded way, the rear end of the screw rod is connected with a hand wheel, and the front end of the screw rod is opposite to the pin shaft.
Therefore, the weft wire feeding amount is required to be adjusted to reach the mesh specification required by production design, the front and back positions of the pin shaft on the adjusting groove can be adjusted, the screw is rotated by matching with the hand wheel, so that the adjusting bearing on the pin shaft and the front end of the screw are always in an abutting state, and the phenomenon that the position of the adjusting bearing changes due to repeated impact of the swing arm cam is avoided, and the wire feeding amount is influenced.
As a further improvement of the invention, the swing arm cam comprises a wheel sleeve, the wheel sleeve is sleeved on the lower hook shaft, a semi-annular convex disc is arranged on one side of the wheel sleeve, the radian of the convex disc is small at the upper part and large at the lower part, and the lower part of the convex disc exceeds the wheel sleeve and is matched with the adjusting bearing.
Like this the wheel cover rotates for the lower part of convex disc's wider in-process can last with adjusting bearing contact backward, thereby promote the swing arm of force backward, the convex disc itself is semi-annular moreover, passes through the bolt fastening with the wheel cover, in case after wearing and tearing appear in long-term use, need not to dismantle down the hooked axle, can directly demolish the convex disc and change again, it is more convenient.
As a further improvement of the invention, three swinging structures are arranged on the lower hook shaft and are respectively positioned at the middle part and the two ends of the lower hook shaft, and swinging arms are arranged in one-to-one correspondence with the swinging structures.
Therefore, the left, middle and right parts of the lower hook shaft are provided with the rocker cams, and the corresponding left, middle and right parts of the shuttle box are also provided with the rocker arms corresponding to the rocker arms, so that the shuttle box is uniformly stressed, the manufacturing cost is effectively reduced, and the high-precision weft feeding quantity can be ensured.
As a further improvement of the invention, the power structure comprises a motor, the motor is connected with a transmission short shaft through a double-groove belt pulley, a pinion is sleeved on the transmission short shaft and meshed with a bull gear, the bull gear is sleeved on a main shaft, a lower hook cam is arranged on the bull gear and is matched with a swing arm bearing arranged on a lower hook front-rear swing arm, the lower end of the lower hook front-rear swing arm is sleeved on a front-rear swing shaft, the front-rear swing shaft is arranged on a frame, the upper end of the lower hook front-rear swing arm is hinged with the rear end of a lower hook front-rear connecting rod, the front end of the lower hook front-rear connecting rod is hinged with the upper end of the lower hook swing arm, and the lower end of the lower hook swing arm is sleeved on the lower hook shaft.
The motor rotates like this, and then drive the rotation of transmission minor axis through double flute belt pulley, make the pinion rotate, and then drive the gear wheel and rotate, make the lower hook cam rotate, lower hook cam and swing arm bearing contact, and then make the swing arm backward swing around the lower hook, drive down hook front and back connecting rod backward movement, make lower hook swing arm backward swing, drive down hook axle at the low angle backward rotation, and when lower hook cam continues to rotate, can break away from with swing arm bearing, under reset structure's effect like this, lower hook axle can reverse rotation, and then drive down hook swing arm reverse swing, thereby make swing arm bearing get back to initial position again, and then contact again with lower hook cam, form periodic reciprocating motion, realize down hook axle in the repeated rotation of certain angle within range.
As a further improvement of the invention, the reset structure comprises a reset spring, one end of the reset spring is connected with the shuttle box, and the other end of the reset spring is connected with the frame.
Therefore, when the swing arm cam moves backwards to the limit position, namely, the moment that the lower hook cam is separated from the swing arm cam, the reset spring is retracted under the action of self elastic force, and then the shuttle box is pulled to move reversely, so that reset is realized.
In order to achieve the aim, the invention also provides a weft thread feeding adjusting method of the fishing net machine, which comprises the following specific steps,
step 1, test operation;
step 2, adjusting the device through an adjusting structure according to the test operation effect;
step 3, repeating the step 1-2 until the requirement of the feeding amount of the fishing net weft to be woven is met;
and step 4, formally starting operation.
The invention has the beneficial effects that after the equipment is in place, test operation is firstly carried out, a section of fishing net is woven, and whether the wire feeding amount of the weft is larger or smaller is judged according to the mesh size of the section of fishing net, so that the adjustment of the wire feeding amount of the weft is realized through the adjusting structure, the process is repeated until the mesh size of the woven fishing net meets the production requirement, and normal continuous production can be carried out.
As a further improvement of the present invention, step 1 is specifically as follows,
step 1.1, a motor rotates, and then a transmission short shaft is driven to rotate through a double-groove belt pulley, so that a pinion rotates, and then a bull gear rotates, so that a lower hook cam rotates, the lower hook cam contacts with a swing arm bearing, and then the lower hook swing arm swings backwards, and then a lower hook front-back connecting rod is driven to move backwards, so that the lower hook swing arm swings backwards, and a lower hook shaft is driven to rotate backwards at a small angle, and thus the swing arm cam rotates backwards to contact with an adjusting bearing, and then the swing arm swings backwards, and then a shuttle box is pulled to move backwards through an upper supporting seat, and a reset spring is stretched;
step 1.2, the lower hook cam continuously rotates along with the large gear and is separated from contact with the swing arm bearing, so that the lower hook front-rear swing arm is not subjected to backward thrust any more, the lower hook front-rear connecting rod and the lower hook swing arm are not subjected to backward thrust, the lower hook shaft is not rotated backward any more, the swing arm cam can not apply backward thrust to the swing arm any more, the reset spring is retracted under the action of self elastic force, the shuttle box is driven to move forward, the swing arm moves forward, the swing arm cam is driven to rotate forward, the lower hook shaft is driven to rotate forward, the lower hook front-rear connecting rod, the lower hook swing arm and the lower hook front-rear swing arm are driven to move forward, and the swing arm bearing returns to the original position again;
and step 1.3, repeating the steps 1.1 and 1.2, so that the shuttle box can periodically move back and forth, and further the weft is fed.
When the test operation is performed, the whole transmission operation effect of the device can be checked, whether the shuttle box swings back and forth can be observed through a series of transmissions, and if the shuttle box swings back and forth, relevant adjustment is performed to ensure that the device can normally operate.
As a further improvement of the present invention, step 2 is specifically as follows,
step 2.1, after a few minutes of test run, judging whether the wire feeding amount of the weft is too large or too small according to the mesh size of the woven fishing net;
the adjusting structure comprises an adjusting bearing matched with the swing arm cam, the adjusting bearing is sleeved on a pin shaft, one end of the pin shaft penetrates through an adjusting groove arranged on the swing arm and is fixed through a nut, an installing plate is arranged on the swing arm, a threaded hole is formed in the installing plate, a screw rod is connected with the threaded hole in a threaded manner, the rear end of the screw rod is connected with a hand wheel, and the front end of the screw rod is aligned with the pin shaft
Step 2.2, if the weft feeding amount is larger, after the machine is stopped, rotating the hand wheel to enable the screw rod to move backwards, then loosening the nut, enabling the pin shaft to move backwards along the adjusting groove, further enabling the adjusting bearing to be in contact with the front end of the screw rod again, and then screwing the nut again to fix the pin shaft, so that the positions of the adjusting bearing and the screw rod are fixed;
if the weft feeding quantity is smaller, after the machine is stopped, the hand wheel is rotated, the screw rod moves forwards, then the nut is loosened, the pin shaft moves forwards along the adjusting groove, then the adjusting bearing is contacted with the front end of the screw rod again, and then the nut is screwed down again, so that the pin shaft is fixed, and the position of the adjusting bearing and the position of the screw rod are fixed.
Therefore, the distance between the swing arm cam and the adjusting bearing can be quickly adjusted according to the mesh size, and the weft feeding amount can be adjusted.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic diagram of a main structure of the present invention.
Fig. 3 is a schematic diagram of a main structure of the present invention.
Fig. 4 is a schematic diagram of a transmission structure of the present invention.
Fig. 5 is a side view of the transmission structure of the present invention.
Fig. 6 is a partial enlarged view at a in fig. 3.
Fig. 7 is a partial enlarged view at B in fig. 4.
The device comprises a motor 1, a shuttle box 2, a swinging arm 3, a lower hook shaft 4, a double-groove belt pulley 5, a large gear 6, a lower hook front-rear swing arm 7, a lower hook front-rear connecting rod 8, a reset spring 9, an angle iron shaft 10, a lower hook angle iron device 11, a shuttle box 12, a main shaft 13, a transmission short shaft 14, a small gear 15, a lower hook shaft 16, a lower hook swing arm 17, a nut 18, a square beam 19, a frame 20, a lower support seat 21, a front-rear swing shaft 22, a mounting plate 23, an adjusting groove 24, an upper support seat 25, a wheel sleeve 26, a hand wheel 27, a screw 28, a pin shaft 29, an adjusting bearing 30, a cam 31, a lower hook cam 32 and a swing arm bearing 33.
Description of the embodiments
The invention is further described below with reference to the accompanying drawings:
the weft feeding device of the fishing net machine as shown in fig. 1-7 comprises a shuttle box 12, wherein the shuttle box 12 is arranged at the top of the rear end of a frame 20, reset structures are arranged at two ends of the shuttle box 12, a swinging structure matched with a lower hook shaft 16 is arranged at the lower part of the rear side of the shuttle box 12, an adjusting structure is arranged in the swinging structure in a matched mode, the lower hook shaft 16 is connected with a power structure, and the power structure is arranged at one side of the frame 20.
The swing structure includes swing arm cam, and swing arm cam cover 26 is established on lower hook axle 16, and swing arm cam cooperates with adjusting structure, and adjusting structure sets up on swing arm of force 3, and the upper end of swing arm of force 3 links to each other with last supporting seat 25, and last supporting seat 25 links to each other with shuttle box 12 rear side lower part, and the lower extreme of swing arm of force 3 articulates with lower supporting seat 21, and lower supporting seat 21 sets up on the square beam 19 of frame 20 rear end lower part.
The adjusting structure comprises an adjusting bearing 30 matched with a swing arm cam, the adjusting bearing 30 is sleeved on a pin shaft 29, one end of the pin shaft 29 penetrates through an adjusting groove 24 arranged on a swing arm 3 and is fixed through a nut 18, an installing plate 23 is arranged on the swing arm 3, a threaded hole is formed in the installing plate 23, a screw 28 is connected with the threaded hole in a threaded mode, the rear end of the screw 28 is connected with a hand wheel 27, and the front end of the screw 28 is opposite to the pin shaft 29.
The swing arm cam comprises a wheel sleeve 26, the wheel sleeve 26 is sleeved on the lower hook shaft 16, a semi-annular convex disc 31 is arranged on one side of the wheel sleeve 26, the radian of the convex disc 31 is small at the upper part and large at the lower part, and the lower part of the convex disc 31 exceeds the wheel sleeve 26 and is matched with the adjusting bearing 30; the swing structure is provided with three on the lower hook shaft 16, is respectively in the middle part and both ends of the lower hook shaft 16, and the swing arm of force 3 and the swing structure are set up in one-to-one correspondence.
The power structure comprises a motor 1, the motor 1 is connected with a transmission short shaft 14 through a double-groove belt pulley 5, a pinion 15 is sleeved on the transmission short shaft 14, the pinion 15 is meshed with a large gear 6, the large gear 6 is sleeved on a main shaft 13, a lower hook cam 32 is arranged on the large gear 6, the lower hook cam 32 is matched with a swing arm bearing 33 arranged on a lower hook front-rear swing arm 7, the lower end of the lower hook front-rear swing arm 7 is sleeved on a front-rear swing shaft 22, the front-rear swing shaft 22 is arranged on a frame 20, the upper end of the lower hook front-rear swing arm 7 is hinged with the rear end of a lower hook front-rear connecting rod 8, the front end of the lower hook front-rear connecting rod 8 is hinged with the upper end of a lower hook swing arm 17, and the lower end of the lower hook swing arm 17 is sleeved on a lower hook shaft 16; the reset structure comprises a reset spring 9, one end of the reset spring 9 is connected with the shuttle box 12, and the other end is connected with the frame 20.
A method for adjusting the weft thread feeding of a fishing net machine as shown in fig. 1-7, comprising the following specific steps,
step 1, test operation;
step 1.1, the motor 1 rotates, and then drives the transmission short shaft 14 to rotate through the double-groove belt pulley 5, so that the pinion 15 rotates, and then drives the large gear 6 to rotate, so that the lower hook cam 32 rotates, the lower hook cam 32 contacts with the swing arm bearing 33, and then the lower hook front-back swing arm 7 swings backwards, and drives the lower hook front-back connecting rod 8 to move backwards, so that the lower hook swing arm 17 swings backwards, and the lower hook shaft 16 is driven to rotate backwards at a small angle, and thus the swing arm cam rotates backwards to contact with the adjusting bearing 30, and then the swing arm 3 is pushed to swing backwards, and then the shuttle box 12 is pulled to move backwards through the upper supporting seat 25, and then the reset spring 9 is stretched;
step 1.2, the lower hook cam 32 continuously rotates along with the large gear 6 and is separated from contact with the swing arm bearing 33, so that the lower hook front-rear swing arm 7 is not subjected to backward thrust, and further the lower hook front-rear connecting rod 8 and the lower hook swing arm 17 are not subjected to backward thrust, so that the lower hook shaft 16 is not rotated backward, the swing arm cam can not apply backward thrust to the swing arm 3 any more, and further the reset spring 9 is retracted under the action of self elastic force, so that the shuttle box 12 is driven to move forward, the swing arm 3 is driven to move forward, the swing arm cam is driven to rotate forward, and the lower hook shaft 16 is driven to rotate forward, so that the lower hook front-rear connecting rod 8, the lower hook swing arm 17 and the lower hook front-rear swing arm 7 are driven to move forward, and further the swing arm bearing 33 returns to the original position again;
step 1.3, repeating steps 1.1 and 1.2, enables the shuttle box 12 to be moved back and forth periodically, thereby effecting the feeding of the weft thread.
Step 2, adjusting the device through an adjusting structure according to the test operation effect;
step 2.1, after a few minutes of test run, judging whether the wire feeding amount of the weft is too large or too small according to the mesh size of the woven fishing net;
the adjusting structure comprises an adjusting bearing 30 matched with a swing arm cam, the adjusting bearing 30 is sleeved on a pin shaft 29, one end of the pin shaft 29 passes through an adjusting groove 24 arranged on a swing arm 3 and is fixed by a nut 18, the swing arm 3 is provided with a mounting plate 23, the mounting plate 23 is provided with a threaded hole, the threaded hole is in threaded connection with a screw 28, the rear end of the screw 28 is connected with a hand wheel 27, and the front end of the screw 28 is opposite to the pin shaft 29
Step 2.2, if the weft feeding amount is larger, after the machine is stopped, rotating the hand wheel 27 to enable the screw 28 to move backwards, then loosening the nut 18, enabling the pin shaft 29 to move backwards along the adjusting groove 24, further enabling the adjusting bearing 30 to be in contact with the front end of the screw 28 again, and then screwing the nut 18 again to fix the pin shaft 29, so that the positions of the adjusting bearing 30 and the screw 28 are fixed;
if the weft feeding amount is smaller, after stopping, the hand wheel 27 is rotated to enable the screw 28 to move forwards, then the nut 18 is loosened to enable the pin shaft 29 to move forwards along the adjusting groove 24, then the adjusting bearing 30 is enabled to be in contact with the front end of the screw 28 again, then the nut 18 is screwed down again to fix the pin shaft 29, and therefore the positions of the adjusting bearing 30 and the screw 28 are fixed.
Step 3, repeating the step 1-2 until the requirement of the feeding amount of the fishing net weft to be woven is met;
and step 4, formally starting operation.
In actual operation, the motor 1 is started, the transmission short shaft 14 is continuously rotated through the transmission connection of the two groups of double-groove pulleys 5, so that the pinion 15 sleeved on the transmission end shaft is continuously rotated, the large gear 6 meshed with the pinion 15 is driven to rotate, the lower hook cam 32 arranged on the large gear 6 synchronously rotates, the lower hook cam 32 contacts with the swing arm bearing 33 on the lower hook front-rear swing arm 7 to push the lower hook front-rear swing arm 7 to swing backwards, so that the lower hook front-rear connecting rod 8 is driven to move backwards, the lower hook swing arm 17 is driven to swing backwards, and the lower end of the lower hook swing arm 17 is sleeved on the lower hook shaft 16, so that the lower hook shaft 16 is rotated backwards, the swing arm cam on the lower hook shaft 16 is rotated backwards, the lower part of the convex disc 31 is contacted with the adjusting bearing 30 on the swing arm 3, the swing arm 3 is pushed to swing backwards, the shuttle box 12 is pulled to move backwards through the upper supporting seat 25, and the reset spring 9 connected with the shuttle box 12 is stretched.
Since the motor 1 continues to rotate in one direction, the lower hook cam 32 also rotates in one direction, and when the lower hook cam 32 continues to rotate to the moment of disengagement from the swing arm bearing 33, the swing arm bearing 33 is not subjected to the thrust exerted by the lower hook cam 32, and the lower hook front-rear swing arm 7 does not continue to swing backward, so that the lower hook swing arm 17 connected with the lower hook front-rear swing arm 7 and the lower hook front-rear connecting rod 8 connected with the lower hook front-rear swing arm is also not continuously swung backward, and the lower hook shaft 16 connected with the lower hook swing arm 17 does not continue to rotate backward at the moment, so that the swing arm cam sleeved on the lower hook shaft 16 is also not continuously rotated backward, and the adjusting bearing 30 contacted with the swing arm 3 does not bring backward thrust to the swing arm 3, and therefore, the shuttle box 12 connected with the swing arm 3 through the upper supporting seat 25 is only subjected to the elastic force from the reset spring 9.
The shuttle box 12 is pulled to move reversely by the elasticity of the reset spring 9, namely, moves forwards, and drives the swing arm 3 to swing forwards, so that the adjusting bearing 30 pushes the swing arm cam to rotate reversely, and then the lower hook shaft 16 rotates reversely, so that the lower hook swing arm 17 connected with the lower hook swing arm is swung forwards (reversely), and the lower hook front and rear connecting rod 8 is driven to move forwards (reversely), so that the lower hook front and rear swing arm 7 swings forwards (reversely) until the reset spring 9 is restored to an initial state, and the swing arm bearing 33 also returns to an initial position at the moment; the lower hook cam 32 continuously rotates along one direction, and then contacts with the swing arm bearing 33 returned to the initial position again, so that the above process is repeated, the shuttle box 12 periodically reciprocates, and continuous feeding of the weft is realized.
In this process, since the upper end of the lower hook swing arm 17 is connected with the angle iron shaft 10, and the angle iron shaft 10 is connected with the lower hook angle iron device 11, the angle iron shaft 10 drives the lower hook angle iron device 11 to move back and forth in an arc shape under the driving of the lower hook swing arm 17, so as to realize the hooking action of the lower hook.
Since the fishing net is formed by weaving warp and weft together, the mesh size of the fishing net is closely related to the weft, the mesh size of the fishing net is increased when the feeding amount of the weft is large, the feeding amount of the weft is related to the distance of the shuttle box 12 moving reciprocally, and the feeding amount of the weft is also increased when the distance of the shuttle box 12 moving reciprocally is large. The moving distance of the shuttle box 12 is related to the swinging amplitude of the swinging arm 3, and the swinging amplitude of the swinging arm 3 is determined by the distance that the swinging arm cam pushes the adjusting bearing 30 to move, so that the swinging amplitude of the swinging arm 3 can be effectively realized only by changing the distance between the adjusting bearing 30 and the swinging arm cam, and the moving distance of the shuttle box 12 can be further adjusted.
When the mesh of the fishing net is required to be smaller and the mesh of the fishing net is required to be larger, firstly unscrewing the nut 18, further moving the pin shaft 29 forwards at the position of the regulating groove 24, namely moving towards the direction of the swing arm cam, shortening the distance between the regulating bearing 30 and the swing arm cam, enabling the distance of the swing arm cam for pushing the regulating bearing 30 to be increased, then screwing the nut 18 again, enabling the pin shaft 29 to be communicated with the regulating bearing 30 to be fixed, finally rotating the hand wheel 27 to screw the screw rod 28 forwards, and further enabling the front end of the screw rod 28 to abut against the regulating bearing 30, so that the regulating bearing 30 is propped against the screw rod 28, and when being pushed by the swing arm cam, the pin shaft does not relatively move with the regulating groove 24, and the feeding amount of the weft is inaccurate; thus, as the distance between the adjusting bearing 30 and the swing arm cam is reduced, the displacement generated by the swing arm cam when pushing the adjusting bearing 30 is increased, and the moving distance of the shuttle box 12 is further increased, thereby realizing the purpose of increasing the feeding amount of the weft thread
When the mesh of the fishing net is required to be enlarged and the mesh of the fishing net is required to be reduced, firstly, the hand wheel 27 is rotated to screw the screw 28 backwards, the front end of the screw 28 is separated from contact with the adjusting bearing 30, then the nut 18 is loosened, the pin shaft 29 is moved backwards along the adjusting groove 24, the distance between the adjusting bearing 30 and the swing arm cam is enlarged, the nut 18 is used for fixing, then the hand wheel 27 is rotated to move the screw 28 forwards again and props against the adjusting bearing 30, so that the adjusting bearing 30 is propped against the screw 28, and when being pushed by the swing arm cam, the screw is not displaced relative to the adjusting groove 24, and the weft feeding quantity is inaccurate; because the distance between the adjusting bearing 30 and the swing arm cam is increased, the displacement amount generated by the swing arm cam when pushing the adjusting bearing 30 is reduced, and the moving distance of the shuttle box 12 is further reduced, so that the purpose of reducing the feeding amount of the weft is realized.
After the thread feeding amount of the weft threads is readjusted, the fishing net can be formally operated to weave.
The invention replaces the traditional connecting rod structure with the cooperation of the swinging arm 3 and the swinging arm cam, not only has higher movement precision, but also can realize the functions by only arranging three groups of swinging arms 3 and swinging arm cams, greatly simplifies the structure and effectively reduces the manufacturing cost, and the invention can effectively change the feeding amount of the weft yarn by changing the distance between the adjusting bearing 30 and the swinging arm cam, thereby having simpler and more convenient adjusting process, improving the production efficiency and having higher adjusting precision.
The present invention is not limited to the above-described embodiments, and based on the technical solutions of the present disclosure, those skilled in the art may make some substitutions and modifications to some technical features thereof without creative efforts, which are all within the scope of the present invention.
Claims (8)
1. The utility model provides a weft thread feeding device of fishing net machine, includes the shuttle box, and the shuttle box sets up at the rear end top of frame, its characterized in that: reset structures are arranged at two ends of the shuttle box, a swing structure matched with a lower hook shaft is arranged at the lower part of the rear side of the shuttle box, an adjusting structure is arranged in the swing structure in a matched manner, the lower hook shaft is connected with a power structure, and the power structure is arranged at one side of the frame;
the swing structure comprises a swing arm cam, the swing arm cam is sleeved on the lower hook shaft, the swing arm cam is matched with the adjusting structure, the adjusting structure is arranged on a swing arm, the upper end of the swing arm is connected with an upper supporting seat, the upper supporting seat is connected with the lower part of the rear side of the shuttle box, the lower end of the swing arm is hinged with a lower supporting seat, and the lower supporting seat is arranged on a square beam at the lower part of the rear end of the frame;
the adjusting structure comprises an adjusting bearing matched with the swing arm cam, the adjusting bearing is sleeved on the pin shaft, one end of the pin shaft penetrates through an adjusting groove arranged on the swing arm and is fixed through a nut, the swing arm is provided with a mounting plate, the mounting plate is provided with a threaded hole, the threaded hole is connected with a screw rod in a threaded manner, the rear end of the screw rod is connected with a hand wheel, and the front end of the screw rod is opposite to the pin shaft.
2. A weft feeding device for a fishing net machine according to claim 1, wherein: the swing arm cam comprises a wheel sleeve, the wheel sleeve is arranged on the lower hook shaft, a semi-annular convex disc is arranged on one side of the wheel sleeve, the radian of the convex disc is small and large, and the lower part of the convex disc exceeds the wheel sleeve and is matched with the adjusting bearing.
3. A weft feeding device for a fishing net machine according to claim 2, wherein: the swing structure is provided with three on the lower hook shaft, is respectively positioned in the middle part and two ends of the lower hook shaft, and the swing arm of force is arranged in one-to-one correspondence with the swing structure.
4. A weft feeding device for a fishing net machine according to claim 3, wherein: the power structure comprises a motor, the motor is connected with a transmission short shaft through a double-groove belt pulley, a pinion is sleeved on the transmission short shaft and meshed with a bull gear, the bull gear is sleeved on a main shaft, a lower hook cam is arranged on the bull gear and is matched with a swing arm bearing arranged on a lower hook front-rear swing arm, the lower end of the lower hook front-rear swing arm is sleeved on a front-rear swing shaft, the front-rear swing shaft is arranged on a frame, the upper end of the lower hook front-rear swing arm is hinged with the rear end of a lower hook front-rear connecting rod, the front end of the lower hook front-rear connecting rod is hinged with the upper end of the lower hook swing arm, and the lower end of the lower hook swing arm is sleeved on the lower hook shaft.
5. A weft feeding device for a fishing net machine as defined in claim 4, wherein: the reset structure comprises a reset spring, one end of the reset spring is connected with the shuttle box, and the other end of the reset spring is connected with the frame.
6. A weft thread feeding adjusting method of a fishing net machine is characterized by comprising the following steps: a weft thread feeding device for a fishing net machine according to claim 5, comprising the specific steps of,
step 1, test operation;
step 2, adjusting the device through an adjusting structure according to the test operation effect;
step 3, repeating the step 1-2 until the requirement of the feeding amount of the fishing net weft to be woven is met;
and step 4, formally starting operation.
7. A method of adjusting weft feed for a fishing net machine as defined in claim 6, wherein: the specific content of the step 1 is as follows,
step 1.1, a motor rotates, and then a transmission short shaft is driven to rotate through a double-groove belt pulley, so that a pinion rotates, and then a bull gear rotates, so that a lower hook cam rotates, the lower hook cam contacts with a swing arm bearing, and then the lower hook swing arm swings backwards, and then a lower hook front-back connecting rod is driven to move backwards, so that the lower hook swing arm swings backwards, and a lower hook shaft is driven to rotate backwards at a small angle, and thus the swing arm cam rotates backwards to contact with an adjusting bearing, and then the swing arm swings backwards, and then a shuttle box is pulled to move backwards through an upper supporting seat, and a reset spring is stretched;
step 1.2, the lower hook cam continuously rotates along with the large gear and is separated from contact with the swing arm bearing, so that the lower hook front-rear swing arm is not subjected to backward thrust any more, the lower hook front-rear connecting rod and the lower hook swing arm are not subjected to backward thrust, the lower hook shaft is not rotated backward any more, the swing arm cam can not apply backward thrust to the swing arm any more, the reset spring is retracted under the action of self elastic force, the shuttle box is driven to move forward, the swing arm moves forward, the swing arm cam is driven to rotate forward, the lower hook shaft is driven to rotate forward, the lower hook front-rear connecting rod, the lower hook swing arm and the lower hook front-rear swing arm are driven to move forward, and the swing arm bearing returns to the original position again;
and step 1.3, repeating the steps 1.1 and 1.2, so that the shuttle box can realize periodical reciprocating back and forth movement, and further realize the feeding of the weft.
8. A method of adjusting weft feed for a fishing net machine as defined in claim 7, wherein: the specific content of the step 2 is as follows,
step 2.1, after a few minutes of test run, judging whether the wire feeding amount of the weft is too large or too small according to the mesh size of the woven fishing net;
the adjusting structure comprises an adjusting bearing matched with the swing arm cam, the adjusting bearing is sleeved on a pin shaft, one end of the pin shaft penetrates through an adjusting groove arranged on the swing arm and is fixed through a nut, the swing arm is provided with a mounting plate, the mounting plate is provided with a threaded hole, a screw is connected with the threaded hole in a threaded manner, the rear end of the screw is connected with a hand wheel, and the front end of the screw is opposite to the pin shaft;
step 2.2, if the weft feeding amount is larger, after the machine is stopped, rotating the hand wheel to enable the screw rod to move backwards, then loosening the nut, enabling the pin shaft to move backwards along the adjusting groove, further enabling the adjusting bearing to be in contact with the front end of the screw rod again, and then screwing the nut again to fix the pin shaft, so that the positions of the adjusting bearing and the screw rod are fixed;
if the weft feeding quantity is smaller, after the machine is stopped, the hand wheel is rotated, the screw rod moves forwards, then the nut is loosened, the pin shaft moves forwards along the adjusting groove, then the adjusting bearing is contacted with the front end of the screw rod again, and then the nut is screwed down again, so that the pin shaft is fixed, and the position of the adjusting bearing and the position of the screw rod are fixed.
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| CN202211180090.8A CN115652525B (en) | 2022-09-27 | 2022-09-27 | Weft thread feeding device of fishing net machine and adjusting method |
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| CN202211180090.8A CN115652525B (en) | 2022-09-27 | 2022-09-27 | Weft thread feeding device of fishing net machine and adjusting method |
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| CN115652525B true CN115652525B (en) | 2023-11-24 |
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| CN214992231U (en) * | 2021-05-20 | 2021-12-03 | 扬州鑫渔纺织机械有限公司 | Weft compensation adjusting structure |
| CN216274629U (en) * | 2021-10-26 | 2022-04-12 | 扬州鑫渔纺织机械有限公司 | Shuttle box swing adjusting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2173261Y (en) * | 1993-08-12 | 1994-08-03 | 武进县湖塘纺织机械厂 | Net weaving machine |
| JPH0813303A (en) * | 1994-07-01 | 1996-01-16 | Toyo Kogyo Kk | Lower hook driving device for net knitting machine |
| JPH0849151A (en) * | 1994-08-05 | 1996-02-20 | Toyo Kogyo Kk | Yarn shaking device for net knitting machine |
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| CN115652525A (en) | 2023-01-31 |
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