Tension self-adaptive adjusting device of fishing net braiding machine

Abstract

The invention relates to the technical field of tension adjustment, and provides a fishing net braiding machine tension self-adaptive adjusting device which comprises a rack, two parallel and symmetrical lifting seats are slidably arranged in the rack, floating seats with the same sliding path are arranged in the lifting seats, one end of each floating seat is connected with a rotating guide wheel through an axial adjusting structure, and the other end of each floating seat is connected with a rotating guide wheel through an axial adjusting structure. A plurality of wire grooves are formed in the outer portions of the guide wheels, anti-disengaging frames extending to the outer portions of the guide wheels are arranged on the floating seats, the lifting seats, the floating seats and the guide wheels are arranged in two sets, and the moving directions of the two sets are opposite. It can be understood that the quick-response compact tensioning structure is achieved through the different-direction synchronous guide wheels distributed in parallel; a motor is combined to drive a lifting seat and a pressure sensor to synchronously finish automatic and active tensioning so as to expand the adjusting range; the multi-size wire slots are switched through axial movement of the guide wheels, and the adaptability is improved while the wire is prevented from falling off through cooperation with the anti-falling frame.

Description

Technical Field

[0001] The present invention relates to the field of tension adjustment, and more specifically, to a tension self - adaptive adjustment device for a fishing net knitting machine. Background Art

[0002] A fishing net knitting machine is a mechanical device for knitting fishing nets. Existing equipment is mainly a double - hook type net knitting machine. When knitting fishing nets, in order to overcome the problem of the knitting thread being too loose or too tight during knitting, a tensioning mechanism needs to be set on the wire feeding path to ensure the stable self - adaptive feeding of the branch line; After checking the application number: 202410988398.8, a net rope guiding device for a fishing net knitting machine is disclosed. In this technology, "including a right - angled frame, a first linear guide rail module is installed on the inner bottom surface of the right - angled frame, a tension maintaining component is installed on the moving end of the first linear guide rail module through a bracket, a guiding roller is installed at the middle position of the inner side surface of the right - angled frame, and a guiding component is installed at the position near the top of the inner side surface of the right - angled frame" and other technical solutions are disclosed, and it has "a slidable guiding ring is provided, so that the guiding device can limit and guide the net rope with a small thickness through the inner diameter of the guiding ring itself, and guide the net rope with a large thickness through the area surrounded by the guiding ring, realizing the adaptive adjustment of net ropes with different thicknesses, and the guiding wheels provided can also make adaptive adjustments to the net rope, improving the practicability of the guiding device" and other technical effects; This mechanism can adapt to the stable guiding of knitting threads with different diameters and has a tensioning function at the same time. However, the tensioning range that can be achieved by this way of passing through the "pressure roller" is very small. At the same time, due to the winding type, the knitting thread wound outside the "drum" is prone to entanglement. Moreover, during actual use, the knitting thread may suddenly become loose or tight, exacerbating the generation of the entanglement phenomenon; To solve the above problems, a tension self - adaptive adjustment device for a fishing net knitting machine is proposed in this application. Summary of the Invention

[0003] The purpose of the present invention is to provide a tension self - adaptive adjustment device for a fishing net knitting machine, which can avoid entanglement through a long - distance adjustable tensioning structure and has a larger tensioning range at the same time.

[0004] The purpose of the present invention can be achieved by the following technical solutions: A tension self - adaptive adjustment device for a fishing net knitting machine includes a frame. Two parallel and symmetric lifting seats are slidably arranged in the frame. A floating seat with the same sliding path is arranged in the lifting seat. One end of the floating seat is connected with a rotating guide wheel through an axial adjustment structure. A plurality of wire grooves are arranged outside the guide wheel. An anti - detachment frame extending to the outside of the guide wheel is arranged on the floating seat. The lifting seats, floating seats, and guide wheels are all arranged in two groups, and the moving directions between the two groups are opposite.

[0005] Preferably, a guide rod is fixed on the floating seat and slides in the lifting seat. A spring for abutting is provided between the floating seat and the lifting seat, and the floating seat is elastically movable in the lifting seat through the spring.

[0006] Preferably, symmetric adjusting seats are formed in the frame and are in sliding fit with the lifting seats. A guide rail and a guide groove are provided for cooperation between the adjusting seats and the lifting seats.

[0007] Preferably, a toothed plate is fixed on one side of the lifting seat, a through groove is formed on one side of the adjusting seat, the toothed plate is located outside the adjusting seat through the through groove, a connecting plate is fixed in the middle of the rear ends of the two adjusting seats, and a motor is installed on the connecting plate. A gear is fixed to the output end of the motor and meshes with the toothed plate.

[0008] Preferably, the toothed plates on the two lifting seats are arranged in parallel and simultaneously mesh with the gear. After starting the motor, the two lifting seats are driven to displace synchronously in opposite directions through the meshing of the gear and the toothed plate.

[0009] Preferably, the adjusting mechanism includes a threaded sleeve slidably disposed in the floating seat and a screw rod threadedly engaged with the threaded sleeve. The guide wheel is rotatably connected to the end of the threaded sleeve away from the screw rod. The screw rod is located in the floating seat and one end thereof is fixed with an adjusting wheel extending to the outside.

[0010] Preferably, the sliding surfaces of the threaded sleeve and the floating seat are in a matching rectangular structure, and the guide wheel is driven to displace axially through the thread between the screw rod and the threaded sleeve.

[0011] Preferably, two parallel circular retaining rings are formed in the anti - detachment frame. A through hole is formed in the middle of the retaining ring for axial adjustment of the guide wheel, and a space for accommodating a wire groove is formed between the two retaining rings. An extension part is also provided on the anti - detachment frame and is fixed to the outside of the floating seat.

[0012] Preferably, the sizes of several wire grooves in the guide wheel gradually increase from the threaded sleeve to the other end.

[0013] Preferably, a number of mounting holes are provided on the frame.

[0014] Advantages of the present invention: By setting the synchronous movement in opposite directions of the two guide wheels, when tensioning, the two guide wheels can move simultaneously, with a faster reaction speed, and the structure of the movement in opposite directions is in parallel distribution, making the structure more compact; By driving the lifting of the lifting seat on the frame by a motor, it can cooperate with the pressure sensor on the braided wire, and while automatically tensioning, it also performs active tensioning, further increasing the tensioning range; In the present invention, wire grooves with different sizes are provided outside the guide wheel. Through the axial movement of the guide wheel and the cooperation with the anti - detachment frame, it can avoid wire detachment while playing a role in rapid switching, increasing the adaptability of the tension adjusting mechanism. Brief Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 Structural schematic diagram of the front view of the present invention; Figure 2 is Figure 1 Structural schematic diagram of the side elevation view; Figure 3 is Figure 1 Structural schematic diagram of the top view; Figure 4 is Figure 1 Structural schematic diagram of the rear view; Figure 5 Structural schematic diagram of the partial cross-section of the side view of the present invention; Figure 6 Structural schematic diagram of the disassembled and partial cross-section of the present invention; In the drawings, the list of components represented by each reference numeral is as follows: In the figure: 1, frame; 11, adjusting seat; 12, through groove; 13, connecting plate; 14, mounting hole; 2, lifting seat; 21, toothed plate; 3, floating seat; 31, guide rod; 32, spring; 4, guide wheel; 41, wire groove; 5, anti-disengagement frame; 6, threaded sleeve; 7, screw rod; 71, adjusting wheel; 8, motor; 81, gear. Detailed Embodiments

[0017] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following will further describe the present invention in detail with reference to specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0018] Such as Figure 1 - Figure 6Shown: A tension self - adaptive adjustment device for a fishing net knitting machine, including a frame 1. In the frame 1, two parallel and symmetrically arranged lifting seats 2 are slidably provided. In the lifting seats 2, floating seats 3 with the same sliding path are provided. The sliding of the lifting seats 2 in the frame 1 and the sliding of the floating seats 3 in the lifting seats 2 both move in the vertical direction. One end of the floating seat 3 is connected with a rotating guide wheel 4 through an axial adjustment structure. A number of wire grooves 41 are provided outside the guide wheel 4. The number of wire grooves 41 can be switched according to the knitting thread size without disassembling the machine in cooperation with the axial adjustment mechanism to ensure the reliable tension of knitting threads of different sizes. The lifting seats 2, floating seats 3, and guide wheels 4 are all provided in two groups, and the moving directions between the two groups are opposite.

[0019] Specifically, an anti - detachment frame 5 extending outside the guide wheel 4 is provided on the floating seat 3. Two parallel - arranged circular retaining rings are formed in the anti - detachment frame 5. A through - hole is formed in the middle of the retaining ring for the axial adjustment of the guide wheel 4. And in order to prevent the knitting thread from jumping between adjacent wire grooves 41, only a space for accommodating one wire groove 41 is formed between the two retaining rings. An extension part is also provided on the anti - detachment frame 5 and fixed to the outside of the floating seat 3. The extension part of the anti - detachment frame 5 and the floating seat 3 are fixedly installed by welding or bolts.

[0020] Specifically, a guide rod 31 is fixed on the floating seat 3. A through - hole for the guide rod 31 to penetrate and slide - fit is provided in the lifting seat 2 for guiding purposes. A spring 32 for abutting is provided between the floating seat 3 and the lifting seat 2. The floating seat 3 is elastically movable in the lifting seat 2 through the spring 32. The spring 32 is also sleeved outside the guide rod 31 to avoid deformation.

[0021] Specifically, symmetric adjustment seats 11 are formed in the frame 1 and slidably cooperate with the lifting seats 2. A matching guide rail and guide groove are provided between the adjustment seat 11 and the lifting seat 2 to ensure the sliding stability of the lifting seat 2 in the adjustment seat 11. In order to reduce the friction and wear of the sliding surface, a bull's - eye wheel can be provided between them or lubricating oil can be applied.

[0022] Further, a toothed plate 21 is welded and fixed to one side of the lifting seat 2. A through - slot 12 is provided on one side of the adjustment seat 11. The toothed plate 21 is located outside the adjustment seat 11 through the through - slot 12. A connecting plate 13 is welded and fixed at the middle position of the rear ends of the two adjustment seats 11. A motor 8 is installed on the outside of the connecting plate 13 through bolts. The output end of the motor 8 penetrates the connecting plate 13 and is fixed with a gear engaging with the toothed plate 21.

[0023] Further, the toothed plates 21 on the two lifting seats 2 are arranged in parallel and are simultaneously engaged with the gear 81. After starting the motor 8, the two lifting seats 2 are driven to displace in opposite directions synchronously through the engagement of the gear 81 and the toothed plates 21. The motor 8 can be manually operated or automatically operated through the controller. Among them, manual operation is to start the forward and reverse rotation of the motor 8 through the switch, so as to achieve the purpose of driving the lifting seat 2; automatic operation requires cooperation with the pressure sensor. Specifically, there are at least two pressure sensors, one senses the loose state of the braided wire, and the other senses the tight state of the braided wire. The signals are transmitted to the controller through the cooperation of the two sensors, and the controller controls the motor 8 to rotate forward and reverse automatically, so as to achieve active adjustment.

[0024] Specifically, the adjusting mechanism includes a threaded sleeve 6 slidably disposed in the floating seat 3 and a screw rod 7 threadedly engaged with the threaded sleeve 6. One end of the guide wheel 4 is rotatably connected to the threaded sleeve 6 through a bearing. One end of the floating seat 3 slidably engaged with the threaded sleeve 6 is open to provide sufficient axial movement space for the threaded sleeve 6 to slide inward or outward. The guide wheel 4 is rotatably connected to the end of the threaded sleeve 6 away from the screw rod 7. The screw rod 7 is located in the floating seat 3 and one end is fixed with an adjusting wheel 71 extending to the outside. There are blocks at both axial positions of the connection between the screw rod 7 and the floating seat 3. When the screw rod 7 is screwed, the guide wheel 4 can be pushed to move axially under the action of the thread, so as to achieve the purpose of switching the wire grooves 41.

[0025] Further, the sliding surfaces of the threaded sleeve 6 and the floating seat 3 are a matching smooth rectangular structure. The rectangular structure can prevent the threaded sleeve 6 from rotating synchronously when the screw rod 7 rotates, thereby ensuring reliable transmission of the axial thrust. The screw rod 7 and the threaded sleeve 6 are threaded to drive the guide wheel 4 to displace axially.

[0026] Specifically, the sizes of several wire grooves 41 in the guide wheel 4 gradually increase from the threaded sleeve 6 to the other end. The closer the guide wheel 4 is to the floating seat 3, the more stable the structure is. At this time, the large-sized wire grooves 41 are located in the anti-detachment frame 5, and even if the braided wire has a certain size, it can be reliably supported. On the contrary, when the guide wheel 4 is far from the floating seat 3, the size of the braided wire passing through is smaller, and it can also be reliably supported.

[0027] Specifically, a plurality of mounting holes 14 are provided on the frame 1. The mounting holes 14 are used to fix the frame 1 on the wire guiding device of the knitting machine. The mounting holes 14 can be set at other positions on the frame 1 according to actual needs to ensure a stable connection.

[0028] It can be understood that the present invention realizes a fast-response compact tensioning structure through laterally distributed opposite-direction synchronous guide wheels; combines a motor-driven lifting seat and a pressure sensor to synchronously complete automatic and active tensioning to expand the adjustment range; uses the axial movement of the guide wheel to switch multi-size wire grooves, and cooperates with the anti-detachment frame to improve adaptability while preventing wire detachment.

[0029] Workflow: Fix the frame 1 to the inner bottom of the right-angle frame in Patent 202410988398.8 through the mounting holes 14. A transfer plate corresponding to the frame 1 and the mounting holes 14 also needs to be set on the right-angle frame. The frame 1 is located below the guiding roller. The braided wire first winds around the outside of the left guiding wheel 4 from bottom to top after going down from the guiding roller, and then winds around the outside of the right guiding wheel 4 upward. Tighten the braided wire so that the floating seat 3 and the guiding wheels 4 are located in the middle of the lifting seat 2. At this time, the spring 32 is in a semi-compressed state, so as to ensure the tightness of the braided wire when it is loosened or tightened. The two guiding wheels 4 move in opposite directions under the action of the spring 32 with different tensions, and their flexibility is higher; At the same time, there are two ways to start the motor 8. One is manually driven, and the other is to set a pressure sensor on the braided wire. The motor 8 is started to rotate forward and backward through the feedback of the sensor. After the motor 8 is started, the engagement of the gear 81 and the toothed plate 21 will drive the two groups of lifting seats 2 to move in opposite directions. The movement of the lifting seats 2 drives the guiding wheels 4 at their upper ends to move simultaneously, so as to further adjust the tension.

[0030] In the description of the present invention, unless otherwise specified, "a plurality of" means two or more; it should be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating the orientation or position relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tension self - adaptive adjustment device for a fishing net knitting machine, comprising a frame (1), characterized in that: In the frame (1), two parallel and symmetric lifting seats (2) are slidably arranged. A floating seat (3) with the same sliding path is arranged in the lifting seat (2). One end of the floating seat (3) is connected with a rotating guide wheel (4) through an axial adjustment structure. A plurality of wire grooves (41) are arranged outside the guide wheel (4). An anti - detachment frame (5) extending to the outside of the guide wheel (4) is arranged on the floating seat (3). The lifting seats (2), floating seats (3), and guide wheels (4) are all arranged in two groups, and the moving directions between the two groups are opposite.

2. The tension self - adaptive adjustment device of a fishing net knitting machine according to claim 1, wherein: A guide rod (31) is fixed on the floating seat (3) and slides in the lifting seat (2). A spring (32) for abutting is arranged between the floating seat (3) and the lifting seat (2). The floating seat (3) elastically moves in the lifting seat (2) through the spring (32).

3. The tension self - adaptive adjustment device of a fishing net knitting machine according to claim 1, characterized in that: Symmetric adjustment seats (11) are formed in the frame (1) and are slidably matched with the lifting seats (2). A guide rail and a guide groove are arranged in cooperation between the adjustment seat (11) and the lifting seat (2).

4. The tension self - adaptive adjusting device of a fishing net knitting machine according to claim 3, wherein: A toothed plate (21) is fixed on one side of the lifting seat (2). A through - slot (12) is opened on one side of the adjustment seat (11). The toothed plate (21) is located outside the adjustment seat (11) through the through - slot (12). A connecting plate (13) is fixed in the middle of the rear ends of the two adjustment seats (11). A motor (8) is installed on the connecting plate (13). A gear (81) fixed to the output end of the motor (8) meshes with the toothed plate (21).

5. The tension self - adaptive adjustment device of a fishing net knitting machine according to claim 4, characterized in that: The toothed plates (21) on the two lifting seats (2) are arranged in parallel and simultaneously mesh with the gear (81). After starting the motor (8), the two lifting seats (2) are driven to displace synchronously in opposite directions through the meshing of the gear (81) and the toothed plate (21).

6. The tension self - adaptive adjusting device of a fishing net knitting machine according to claim 1, characterized in that: The adjusting mechanism includes a threaded sleeve (6) slidably arranged in the floating seat (3) and a screw rod (7) threadedly matched with the threaded sleeve (6). The guide wheel (4) is rotatably connected to one end of the threaded sleeve (6) away from the screw rod (7). The screw rod (7) is located in the floating seat (3) and one end is fixed with an adjusting wheel (71) extending to the outside.

7. An automatic tension adjusting device for a fishing net knitting machine according to claim 6, characterized in that: The sliding surfaces of the threaded sleeve (6) and the floating seat (3) are of a matching rectangular structure, and the guide wheel (4) is driven to displace axially through the thread between the screw rod (7) and the threaded sleeve (6).

8. The tension self - adaptive adjusting device of a fishing net knitting machine according to claim 1, characterized in that: Two parallel - arranged circular retaining rings are formed in the anti - detachment frame (5). A through - hole is formed in the middle of the retaining ring for the axial adjustment of the guide wheel (4). A space for accommodating one wire groove (41) is formed between the two retaining rings. An extension part is also arranged on the anti - detachment frame (5) and is fixed to the outside of the floating seat (3).

9. The tension self - adaptive adjustment device of a fishing net knitting machine according to claim 1, wherein: The sizes of the several wire grooves (41) in the guide wheel (4) gradually increase from the threaded sleeve (6) to the other end.

10. The tension self - adaptive adjustment device of a fishing net knitting machine according to claim 1, characterized in that: A plurality of mounting holes (14) are arranged on the frame (1).

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