A knotter assembly for a fishing net machine

Abstract

The utility model relates to fishing net machine technical field, concretely relates to a fishing net machine's compression knot subassembly, include: compression knot roller and axle, be used for connecting both parties curved arm between compression knot roller and axle, the curved arm has a plurality of and interval arrangement along the length direction of compression knot roller and axle, the curved arm is set up with the through hole of the section shape of the axle adaptation in its one end, positioning protruding, it is with the through slot of setting up in the axle surface sliding fit. The utility model sets up through slot in the axle surface, and sets up positioning protruding in the through slot and slide, can cooperate drive structure and drive all positioning protruding to stretch out or retract the axle, when positioning protruding stretches out, will be connected with the positioning recess of curved arm, thereby convenient to fix the curved arm in batches on the axle, when positioning protruding retracts, will be connected with the positioning recess of curved arm and disconnects, thereby releases the locking of curved arm, can make it from the axle surface by sliding curved arm and take down, and the installation and dismounting efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of fishing net machine technology, and in particular to a pressing assembly for a fishing net machine. Background Technology

[0002] In a net weaving machine (fishing net machine), the knotting roller is a key functional component, mainly used to ensure the tightness and stability of the structure after the weft yarn and warp yarn are interwoven. Traditional knotting mechanisms mainly rely on the self-weight of the knotting roller to make the knot. Due to the limited self-weight of the knotting roller, when encountering thick warp or weft yarns during net weaving, it is easy to cause the knot to be weak, resulting in the final net being not durable.

[0003] To address the aforementioned technical issues, Chinese utility model patent CN218507993U discloses a pressing mechanism for a double-hook type web weaving machine. In this solution, a servo motor is used to drive a reducer to rotate, which in turn drives a small gear. The small gear drives a one-way clutch inside a large gear to rotate a shaft. The pressing roller, connected by a crank arm, performs the pressing action of the web. Therefore, by changing the torque output of the servo motor, the pressing force and movement speed of the pressing roller can be changed to adapt to the compaction of thick warp and weft threads.

[0004] In the above technical solution, in order to ensure the connection strength between the pressing roller and the shaft, multiple curved arms are arranged at intervals along the length direction between the shaft and the pressing roller. The shaft and the curved arms are connected by a traditional spline fit. When it is necessary to install and remove the shaft from the curved arms, each curved arm needs to be disassembled one by one, which is cumbersome and inefficient. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose a pressing assembly for a fishing net machine to solve the technical problem of low efficiency in the installation and disassembly of the pressing structure of the existing fishing net machine.

[0006] To achieve the above objectives, this utility model provides a pressing assembly for a fishing net machine, comprising:

[0007] Pressing rollers and shafts;

[0008] A curved arm is provided between the pressing roller and the shaft to connect the two. The curved arm has multiple curved arms and is arranged at intervals along the length direction of the pressing roller and the shaft. A through hole adapted to the cross-sectional shape of the shaft is opened at one end of the curved arm.

[0009] The positioning protrusion slides into the through groove on the surface of the shaft. The through hole is deepened inward on the inner wall surface and has a positioning groove that matches the positioning protrusion. The relative movement between the crank arm and the shaft is restricted by the engagement of the positioning protrusion and the positioning groove.

[0010] A drive structure, located in the shaft, is used to drive all the positioning protrusions to extend and retract through the slots, so that the positioning protrusions engage and disengage from the positioning grooves.

[0011] As a preferred embodiment of this utility model, the driving structure includes:

[0012] Rotate the shaft located inside the shaft;

[0013] The drive component is fixedly connected to the rotating shaft;

[0014] A follower fixedly connected to the rear end of the positioning protrusion, the follower being used to convert the rotational motion of the driving member into linear motion of the positioning protrusion relative to the through groove;

[0015] A locking mechanism for limiting the rotation of the shaft relative to the axis.

[0016] As a preferred embodiment of this utility model, the driving component is a gear disposed on the surface of the rotating shaft, and the driven component is a rack disposed at the rear end of the positioning protrusion and meshing with the gear.

[0017] As a preferred embodiment of this utility model, the locking mechanism includes:

[0018] A rotating head is located at one end of the rotating shaft;

[0019] A threaded rod is threadedly connected to a threaded groove in the rotating head. One end of the threaded rod passes through the threaded groove and forms a plug, which engages with a socket formed on the inner surface of the shaft.

[0020] As a preferred embodiment of this utility model, the compression assembly further includes:

[0021] Threaded columns are provided at both ends of the pressing roller, and the pressing roller passes through a through hole opened at the other end of the crank arm relative to the shaft.

[0022] A limiting nut that mates with the threaded column, wherein the maximum outer diameter of the limiting nut is greater than the radius of the through hole.

[0023] As a preferred embodiment of this utility model, the pressing assembly further includes a support structure located at both ends of the shaft for rotating and supporting the shaft.

[0024] As a preferred embodiment of this utility model, the support structure includes:

[0025] A fixed bracket and a movable bracket hinged to the fixed bracket, wherein the movable bracket has a bearing groove at the point where it contacts the fixed bracket;

[0026] A ball bearing is disposed in the bearing groove, and the ball bearing is connected to the shaft;

[0027] A limiting mechanism for preventing the movable support from rotating relative to the fixed support.

[0028] As a preferred embodiment of this utility model, the limiting mechanism includes a positioning bolt, one end of which passes through a bolt hole opened at one end of the movable bracket and the fixed bracket, and the positioning bolt is connected with a nut that is compatible with it.

[0029] The beneficial effects of this utility model are as follows: By opening a through groove on the surface of the shaft and sliding a positioning protrusion in the through groove, the positioning protrusion can be driven to extend or retract from the shaft in conjunction with the drive structure. When the positioning protrusion extends, it will connect with the positioning groove of the crank arm, thus facilitating the batch fixing of the crank arms on the shaft. When the positioning protrusion retracts, it will disengage from the positioning groove of the crank arm, thereby releasing the locking of the crank arm. By sliding the crank arm, it can be removed from the surface of the shaft, resulting in high installation and disassembly efficiency. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0032] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention;

[0033] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0034] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention in axial section.

[0035] Figure 5 This is a partial three-dimensional structural diagram of the shaft and rotating head of this utility model.

[0036] The markings in the diagram are as follows: 1. Shaft; 2. Fixed bracket; 3. Movable bracket; 4. Bearing groove; 5. Ball bearing; 6. Positioning bolt; 7. Bolt hole; 8. Positioning protrusion; 9. Crank arm; 10. Rotating shaft; 11. Gear; 12. Rack; 13. Rotating head; 14. Threaded groove; 15. Threaded rod; 16. Insertion hole; 17. Movable groove; 18. Positioning groove; 19. Pressing roller; 20. Threaded column; 21. Limit nut; 22. Driven gear. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0038] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0039] like Figure 1 , Figure 2 and Figure 4 As shown, a pressing assembly for a fishing net machine includes: a pressing roller 19 and a shaft 1; a curved arm 9 disposed between the pressing roller 19 and the shaft 1 for connecting the two, the curved arm 9 having multiple curved arms arranged at intervals along the length direction of the pressing roller 19 and the shaft 1, and a through hole at one end of the curved arm 9 adapted to the cross-sectional shape of the shaft 1; a positioning protrusion 8, which slides in fit with a through groove opened on the surface of the shaft 1, and the through hole is deepened inward on the inner wall surface to form a positioning groove 18 adapted to the positioning protrusion 8, thereby restricting the relative movement between the curved arm 9 and the shaft 1 by the engagement of the positioning protrusion 8 and the positioning groove 18; and a drive structure disposed in the shaft 1 for driving all the positioning protrusions 8 to extend and retract into the through groove, so that the positioning protrusions 8 engage and disengage from the positioning groove 18.

[0040] The above technical solution can improve the installation and disassembly efficiency between shaft 1 and crank arm 9. When it is necessary to disassemble crank arm 9 from shaft 1, the drive structure is operated to drive all positioning protrusions 8 to retract from the through grooves on the surface of shaft 1 into shaft 1 until the positioning protrusions 8 disengage from the positioning grooves 18 on the inner wall of the through hole of crank arm 9, thereby releasing the locking of crank arm 9. By sliding crank arm 9, it can slide along the surface of shaft 1, thereby disassembling all crank arms 9 from shaft 1 with high disassembly efficiency. Conversely, when it is necessary to install, all through holes of crank arms 9 are inserted into the corresponding positions on the surface of shaft 1, ensuring that positioning protrusions 8 are aligned with positioning grooves 18. The drive structure is operated to drive all positioning protrusions 8 to extend from the through grooves on the surface of shaft 1, and the positioning protrusions 8 connect with the positioning grooves 18 on the inner wall of the through hole of crank arm 9, thereby fixing the crank arms 9 on shaft 1 in batches with high installation efficiency.

[0041] like Figure 4 and Figure 5 As shown, in this embodiment, the driving structure includes: a rotating shaft 10 rotatably disposed inside the shaft 1; a driving member fixedly connected to the rotating shaft 10; a driven member fixedly connected to the rear end of the positioning protrusion 8, the driven member being used to convert the rotational motion of the driving member into the linear motion of the positioning protrusion 8 relative to the through groove; and a locking mechanism for restricting the rotation of the rotating shaft 10 relative to the shaft 1. Preferably, the driving member is a gear 11 disposed on the surface of the rotating shaft 10, and the driven member is a rack 12 disposed at the rear end of the positioning protrusion 8 and meshing with the gear 11. The locking mechanism includes: a rotating head 13 disposed at one end of the rotating shaft 10; and a threaded rod 15, which is threadedly connected to a threaded groove 14 opened in the rotating head 13, one end of the threaded rod 15 passing through the threaded groove 14 and forming a plug, the plug engaging with a socket 16 opened on the inner surface of the shaft 1.

[0042] The above technical solution allows for easy extension and retraction of all positioning protrusions 8 into and out of the shaft 1. When all positioning protrusions 8 need to extend out of the shaft 1, hold one end of the threaded rod 15 and rotate it in the first direction to drive the rotating head 13. The rotating head 13 drives the shaft 10 connected to it to rotate. The shaft 10 drives the rack 12 to mesh through the gear 11 on its surface. Thus, the rotational motion of the gear 11 is converted into the linear motion of the positioning protrusions 8 along the through groove on the surface of the shaft 1 through the rack 12, causing the positioning protrusions 8 to extend out of the shaft 1. Then, rotate the threaded rod 15 to make it rotate around its own axis until the other end of the threaded rod 15 is inserted into the insertion hole 16 of the shaft 1, completing the self-locking. Conversely, when all positioning protrusions 8 need to retract into the shaft 1, simply rotate the rotating head 13 in the second direction opposite to the first direction.

[0043] like Figure 2 and Figure 3As shown, in this embodiment, the pressing assembly further includes: a threaded post 20, which is disposed at both ends of the pressing roller 19, the pressing roller 19 passing through a through hole opened at the other end of the crank arm 9 relative to the shaft 1; and a limiting nut 21 that is threadedly engaged with the threaded post 20, the maximum outer diameter of the limiting nut 21 being larger than the radius of the through hole.

[0044] The above technical solution allows for easy disassembly of the pressing roller 19 from the curved arm 9. During disassembly, the limiting nut 21 on the surface of the threaded post 20 is unscrewed to release the axial limit on the pressing roller 19, allowing the pressing roller 19 to be pulled out from the through hole of the curved arm 9.

[0045] like Figure 1 and Figure 2 As shown, in this embodiment, the compression assembly further includes a support structure at both ends of the shaft 1 for rotating and supporting the shaft 1; specifically, the support structure includes: a fixed support 2 and a movable support 3 hinged to the fixed support 2, the movable support 3 having a bearing groove 4 at its contact with the fixed support 2; a ball bearing 5 disposed in the bearing groove 4, the ball bearing 5 being connected to the shaft 1; and a limiting mechanism for preventing the movable support 3 from rotating relative to the fixed support 2, preferably, the limiting mechanism includes a positioning bolt 6, one end of the positioning bolt 6 passing through a bolt hole 7 opened at one end of the movable support 3 and the fixed support 2, and the positioning bolt 6 being connected to a nut that is compatible with it;

[0046] The above technical solution allows for easy disassembly of the shaft 1, the curved arm 9, and the pressing roller 19 from the support structure. During disassembly, unscrew the nut on the surface of the positioning bolt 6, pull the positioning bolt 6 out of the bolt hole 7 at one end of the fixed support 2 and the movable support 3, and then rotate the movable support 3 relative to the fixed support 2. Open the bearing groove 4, remove the shaft 1 along with the ball bearing 5 from the bearing groove 4, and then slide the ball bearing 5 to remove it from the end of the shaft 1.

[0047] like Figure 1 and Figure 2 As shown, in this embodiment, a driven gear 22 is also provided at one end of the shaft 1. The driven gear 22 is used to mesh with the driving gear on the output shaft of the drive motor. A one-way clutch is provided inside the driven gear 22. This part is the prior art described in CN218507993U, and will not be described in detail here.

[0048] The above technical solution can drive the drive motor and reducer to rotate the drive gear. The drive gear meshes with the driven gear 22. The one-way clutch inside the driven gear 22 drives the shaft 1 to rotate. The shaft 1 drives the pressing roller 19 to rotate through the crank arm 9. The pressing roller 19 compacts the net.

[0049] Working principle: When it is necessary to remove the crank arm 9 from the shaft 1, hold one end of the threaded rod 15 and rotate it in the first direction to drive the rotating head 13. The rotating head 13 drives the rotating shaft 10 connected to it to rotate. The rotating shaft 10 drives the rack 12 to mesh through the gear 11 on its surface. Thus, the rotational motion of the gear 11 is converted into the linear motion of the positioning protrusion 8 along the through groove on the surface of the shaft 1 through the rack 12, so that the positioning protrusion 8 retracts into the shaft 1 until the positioning protrusion 8 disengages from the positioning groove 18 on the inner wall of the through hole of the crank arm 9, thereby releasing the lock on the crank arm 9. Then rotate the threaded rod 15 to make it rotate around its own axis until the other end of the threaded rod 15 is inserted into the insertion hole 16 of the shaft 1 to complete the self-locking. By sliding the crank arm 9 to make it slide along the surface of the shaft 1, all the crank arms 9 can be removed from the shaft 1. The disassembly efficiency is high.

[0050] When it is necessary to remove the pressing roller 19 from the crank arm 9, unscrew the limiting nut 21 provided on the surface of the threaded post 20 to release the axial limit on the pressing roller 19, and then the pressing roller 19 can be pulled out from the through hole of the crank arm 9.

[0051] When it is necessary to remove the shaft 1, the crank arm 9 and the pressing roller 19 from the support structure, unscrew the nut on the surface of the positioning bolt 6, pull the positioning bolt 6 out of the bolt hole 7 at one end of the fixed support 2 and the movable support 3, and then rotate the movable support 3 to rotate relative to the fixed support 2. Open the bearing groove 4, remove the shaft 1 together with the ball bearing 5 from the bearing groove 4, and then slide the ball bearing 5 to remove it from the end of the shaft 1.

[0052] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0053] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pressing assembly for a fishing net machine, comprising: Pressing roller (19) and shaft (1); A curved arm (9) is provided between the pressing roller (19) and the shaft (1) for connecting the two. The curved arm (9) has a plurality of curved arms and is arranged at intervals along the length direction of the pressing roller (19) and the shaft (1). The curved arm (9) has a through hole at one end that is adapted to the cross-sectional shape of the shaft (1). The compression assembly is characterized in that it further includes: The positioning protrusion (8) slides in conjunction with the through groove opened on the surface of the shaft (1). The through hole is deepened inward on the inner wall surface and has a positioning groove (18) that matches the positioning protrusion (8). The relative movement between the crank arm (9) and the shaft (1) is restricted by the engagement of the positioning protrusion (8) and the positioning groove (18). A drive structure, which is located in the shaft (1), is used to drive all the positioning protrusions (8) to extend and retract through the slot, so that the positioning protrusions (8) engage and disengage from the positioning grooves (18).

2. The matting assembly of a fishing net machine according to claim 1, characterized in that, The driving structure includes: Rotate the shaft (10) located inside the shaft (1); The drive component is fixedly connected to the rotating shaft (10); A follower fixedly connected to the rear end of the positioning protrusion (8) is used to convert the rotational motion of the driving member into linear motion of the positioning protrusion (8) relative to the through groove. A locking mechanism for limiting the rotation of the shaft (10) relative to the shaft (1).

3. The matting assembly of claim 2, wherein, The driving component is a gear (11) disposed on the surface of the rotating shaft (10), and the driven component is a rack (12) disposed at the rear end of the positioning protrusion (8) and meshing with the gear (11).

4. The pressing assembly of the fishing net machine according to claim 3, characterized in that, The locking mechanism includes: A rotating head (13) is provided at one end of the rotating shaft (10); A threaded rod (15) is threadedly connected to a threaded groove (14) in the rotating head (13). One end of the threaded rod (15) passes through the threaded groove (14) and forms a plug. The plug engages with a socket (16) on the inner surface of the shaft (1).

5. The pressing assembly of the fishing net machine according to claim 1, characterized in that, The compression assembly further includes: Threaded columns (20) are provided at both ends of the pressing roller (19), which passes through a through hole opened at the other end of the crank arm (9) relative to the shaft (1); A limiting nut (21) is threadedly engaged with the threaded post (20), wherein the maximum outer diameter of the limiting nut (21) is greater than the radius of the through hole.

6. The pressing assembly of the fishing net machine according to claim 1, characterized in that, The compression assembly also includes a support structure located at both ends of the shaft (1) for rotating and supporting the shaft (1).

7. The pressing assembly of the fishing net machine according to claim 6, characterized in that, The support structure includes: A fixed bracket (2) and a movable bracket (3) hinged to the fixed bracket (2), wherein the movable bracket (3) has a bearing groove (4) at the point where it fits against the fixed bracket (2); A ball bearing (5) is provided in the bearing groove (4), and the ball bearing (5) is connected to the shaft (1); A limiting mechanism for preventing the movable support (3) from rotating relative to the fixed support (2).

8. The pressing assembly of the fishing net machine according to claim 7, characterized in that, The limiting mechanism includes a positioning bolt (6), one end of which passes through a bolt hole (7) opened at one end of the movable bracket (3) and the fixed bracket (2), and the positioning bolt (6) is connected with a nut that is compatible with it.

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