Fishing reel take-up rocker arm assembly structure and production process thereof

Abstract

The invention discloses a fishing reel take-up rocker arm assembly structure and a production process thereof, and relates to the field of fishing gear, the fishing reel take-up rocker arm assembly structure comprises a rocker arm body, a rectangular block and a movable part; an upper clamping groove is formed in the top end in the rocker arm body, a lower clamping groove is formed in the bottom end in the rocker arm body, a rectangular block is fixedly connected to one side of the rocker arm body, and a threaded rod is fixedly connected to one side of the rectangular block; the movable part is arranged on the periphery of the threaded rod, a rectangular groove is formed in the movable part, an annular groove is formed in the movable part on one side of the rectangular groove, and a shaft ring is arranged in the movable part on one side of the annular groove; a traditional integrated metal structure is replaced with an assembly type structure, split production and reassembly are achieved, the raw material consumption is reduced, the machining difficulty and cost are reduced, and overall scrapping is avoided; and by optimizing the process, the strength precision is guaranteed by using various processing and treatment modes, the efficiency qualification rate is improved, and the balance of cost and functions is realized.

Description

Technical Field

[0001] This invention belongs to the field of fishing gear, specifically a fishing reel reel arm assembly structure and its manufacturing process. Background Technology

[0002] The reel arm is a key operating component on a fishing reel, used to manually rotate the internal gear set of the reel to control the release and retrieval of the fishing line. It typically consists of a grip and a transmission connection, requiring good structural strength to withstand the tension during line retrieval. Its structural design and manufacturing process directly affect its performance.

[0003] Currently, most fishing reel retrieval arms use an integrated metal structure. The overall processing requires a large amount of metal raw materials. The complex one-piece molding process is difficult and requires high equipment investment. In addition, some processes also have problems such as high pollution and high cost. Furthermore, the entire structure needs to be replaced when it is damaged, which further increases the cost of use. Summary of the Invention

[0004] The purpose of this invention is to provide a fishing reel retrieval arm assembly structure and its manufacturing process to solve the problem of high production, use and maintenance costs in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fishing reel retrieval arm assembly structure, comprising an arm body, a rectangular block, and a movable component; an upper slot is provided at the top of the arm body, a lower slot is provided at the bottom of the arm body, a rectangular block is fixedly connected to one side of the arm body, and a threaded rod is fixedly connected to one side of the rectangular block; the movable component is disposed around the threaded rod, a rectangular groove is provided inside the movable component, an annular groove is provided inside the movable component on one side of the rectangular groove, and a collar is provided inside the movable component on one side of the annular groove.

[0006] Preferably, the size of the rectangular groove is adapted to the rectangular block, and the rectangular block and the rectangular groove are fitted together.

[0007] Preferably, the inner diameter of the annular groove is adapted to the outer diameter of the collar, and a wear-resistant coating is provided between the collar and the annular groove.

[0008] Preferably, the upper card slot and the lower card slot have the same depth.

[0009] Preferably, the inner wall of the movable part is provided with an annular oil groove corresponding to the position of the annular groove, and the cross-section of the annular oil groove is semi-circular.

[0010] Preferably, the thread of the threaded rod is a fine thread, and the thread surface is provided with an oxide treatment layer.

[0011] A manufacturing process for a fishing reel line-retrieving rocker arm assembly structure includes the following steps:

[0012] S1. Machining of the rocker arm body:

[0013] A1. Raw material pretreatment: Select high-strength aluminum alloy material, cut the aluminum alloy raw material into blanks that meet the size requirements of the rocker arm body through cutting equipment, and at the same time degrease and remove rust from the surface of the blanks to remove surface oil and oxide layer.

[0014] A2. Forming and processing: The pre-treated blank is milled using a CNC milling machine. An upper groove is machined at the top and a lower groove is machined at the bottom inside the rocker arm body, ensuring that the upper and lower grooves have the same depth. Then, the rectangular block is fixed to a preset position on one side of the rocker arm body by welding. After welding, the weld is ground to ensure a smooth surface.

[0015] A3. Threaded rod processing: Select stainless steel material and process a threaded rod with a fine thread structure using a CNC lathe. Oxidize the thread surface to form an oxide layer to improve corrosion resistance. Then, fix the threaded rod to the side of the rectangular block away from the rocker arm body through a dual fixing method of threaded connection and welding.

[0016] S2. Machining of moving parts:

[0017] B1. ABS plastic injection molding: Mix ABS plastic granules and anti-aging additives according to the preset formula, put the mixture into the barrel of the injection molding machine, heat it to 220-250℃ to melt the plastic granules; then inject the molten ABS plastic into the special mold for moving parts, hold pressure for 15-20s, cool and demold to obtain the preliminary molded moving part blank, and remove the burrs and gate residue after demolding.

[0018] B2. Internal Hardware Machining: Aluminum alloy material is selected, and aluminum die casting process is used to inject molten aluminum alloy into the hardware mold to form the blanks of the internal hardware pins such as the shaft collar required for the moving parts; the blanks are polished by grinding the surface with a grinding wheel and polishing paste to make the surface roughness ≤Ra0.8μm; then holes are drilled at the preset positions using a CNC drilling machine, and finally electroplating is performed. The electroplating layer is made of nickel-chromium alloy, and the thickness is controlled at 8-12μm to improve the wear resistance and rust prevention of the hardware parts;

[0019] B3. Subsequent processing of moving parts: Rectangular and annular grooves are machined inside the injection-molded moving part blank using a CNC milling machine to ensure that the size of the rectangular groove matches the rectangular block; annular oil grooves with a semi-circular cross section are machined on the inner wall of the moving part corresponding to the annular groove; then the electroplated collar is embedded in the annular groove; a wear-resistant coating is applied to the contact surface between the collar and the annular groove and then dried.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. This invention replaces the traditional integrated metal structure with an assembled structure, disassembling and reassembling the rocker arm body and moving parts. This reduces the amount of large metal raw materials used, lowers the processing difficulty and equipment investment of complex integrated molding processes, and avoids the problem of overall scrap due to local errors during overall processing, significantly reducing material and manufacturing costs. Furthermore, through precise matching designs such as rectangular interlocking and threaded connections, combined with wear-resistant coatings and lubrication structures, it ensures that the connections of each component are stable and the transmission is smooth after assembly, fully meeting the normal functional requirements of torque transmission and rotation adjustment when the fishing reel is reeling in, achieving an effective balance between low cost and functionality.

[0022] 2. By optimizing the production process, the rocker arm body is made of high-strength aluminum alloy through CNC milling and double fixing. The moving parts are made of ABS plastic injection molding combined with aluminum alloy hardware die casting and electroplating. This not only ensures the structural strength and dimensional accuracy of each component, but also improves the product's corrosion resistance and surface smoothness through raw material pretreatment, weld grinding, and oxidation treatment. This not only meets the mechanical requirements of fishing reel retrieval, but also improves production efficiency and finished product qualification rate, and reduces subsequent maintenance costs. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 This is a structural breakdown diagram provided for an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0026] Figure 3 This is a partial structural diagram of the rocker arm body and lower slot provided in an embodiment of the present invention;

[0027] Figure 4 This is a partial structural diagram of the threaded rod and moving parts provided in an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the process flow provided for an embodiment of the present invention.

[0029] In the picture:

[0030] 1. Rocker arm body; 101. Upper slot; 102. Rectangular block; 103. Threaded rod; 104. Lower slot; 2. Moving parts; 201. Rectangular groove; 202. Collar; 203. Annular groove. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] As attached Figure 1 To be continued Figure 5 As shown:

[0033] This invention provides a fishing reel retrieval arm assembly structure, including an arm body 1, a rectangular block 102, and a movable component 2; the top end of the arm body 1 is provided with an upper slot 101, the bottom end of the arm body 1 is provided with a lower slot 104, the rectangular block 102 is fixedly connected to one side of the arm body 1, and a threaded rod 103 is fixedly connected to one side of the rectangular block 102; the movable component 2 is disposed around the threaded rod 103, the movable component 2 is provided with a rectangular groove 201, an annular groove 203 is provided inside the movable component 2 on one side of the rectangular groove 201, and a collar 202 is provided inside the movable component 2 on one side of the annular groove 203.

[0034] In one embodiment of the present invention, the size of the rectangular groove 201 is adapted to the rectangular block 102, and the rectangular block 102 is fitted into the rectangular groove 201.

[0035] During the reel-in operation, when the rocker arm 1 rotates under force, the interlocking structure of the rectangular block 102 and the rectangular groove 201 prevents slippage between them. Because the rectangular structure lacks symmetrical characteristics, it can directly transmit the rotational torque of the rocker arm 1 to the movable part 2, ensuring that the movable part 2 rotates synchronously with the rocker arm 1. This guarantees the stability and continuity of the reel-in action, while also providing a reference positioning for the subsequent engagement of the threaded rod 103 and the movable part 2, preventing jamming caused by assembly misalignment.

[0036] In one embodiment of the present invention, the inner diameter of the annular groove 203 is adapted to the outer diameter of the collar 202, and a wear-resistant coating is provided between the collar 202 and the annular groove 203.

[0037] The wear-resistant coating is a metal-based wear-resistant coating that can significantly reduce the friction coefficient of the contact surface between the collar 202 and the annular groove 203, reduce the amount of wear when the two rotate relative to each other, and extend the service life of the assembly structure. It is especially suitable for high-frequency rotation scenarios caused by frequent line retrieval of fishing reels.

[0038] In one embodiment of the present invention, the upper slot 101 and the lower slot 104 have the same depth.

[0039] The upper slot 101 and the lower slot 104 are used to accommodate the mating components inside the fishing reel. The consistent slot depth ensures that the mating components have the same contact depth with the rocker arm body 1, so that the supporting force and transmission force on the upper and lower sides of the rocker arm body 1 are evenly distributed when the rocker arm body 1 is under force, and avoids the rocker arm body 1 from shifting due to the difference in slot depth.

[0040] In one embodiment of the present invention, an annular oil groove is provided on the inner wall of the movable member 2 at the position corresponding to the annular groove 203, and the cross-section of the annular oil groove is semi-circular.

[0041] The annular oil groove can store lubricating oil. When the shaft collar 202 rotates in the annular groove 203, it will drive the lubricating oil to flow in the oil groove, so that the lubricating oil evenly covers the contact surface between the shaft collar 202 and the annular groove 203, forming a continuous lubricating film, further reducing frictional resistance. Compared with other shapes, the semi-circular cross-section design can ensure a larger grease storage capacity, avoid excessive lubricating oil being thrown out due to centrifugal force, and facilitate processing and forming, reduce stress concentration on the inner wall of the moving part 2, and improve the structural stability of the moving part 2.

[0042] In one embodiment of the present invention, the thread of the threaded rod 103 is a fine thread, and an oxide treatment layer is provided on the thread surface.

[0043] Compared to coarse threads, fine threads have the characteristics of smaller pitch and shallower thread profile. When the movable part 2 is adjusted in conjunction with the threaded rod 103, more precise displacement control can be achieved, making it easier for users to fine-tune the position of the movable part 2 according to the needs of winding. At the same time, fine threads have stronger self-locking performance, which can prevent the movable part 2 from loosening on its own due to vibration or external force during the winding process.

[0044] A manufacturing process for a fishing reel line-retrieving rocker arm assembly structure includes the following steps:

[0045] S1. Machining of rocker arm body 1:

[0046] A1. Raw material pretreatment: Select high-strength aluminum alloy material and cut the aluminum alloy material into blanks that meet the size requirements of rocker arm body 1 through cutting equipment. At the same time, degrease and remove rust from the surface of the blanks to remove surface oil and oxide layer.

[0047] A2. Forming and processing: The pre-treated blank is milled using a CNC milling machine. An upper groove 101 is machined at the top and a lower groove 104 is machined at the bottom inside the rocker arm body 1, ensuring that the groove depths of the upper groove 101 and the lower groove 104 are consistent. Then, the rectangular block 102 is fixed to a preset position on one side of the rocker arm body 1 by welding. After welding, the weld is ground to ensure a smooth surface.

[0048] A3. Machining of threaded rod 103: Select stainless steel material and machine the threaded rod 103 with fine thread structure using a CNC lathe. Oxidize the thread surface to form an oxide layer to improve corrosion resistance. Then, fix the threaded rod 103 to the side of the rectangular block 102 away from the rocker arm body 1 by a combination of threaded connection and welding.

[0049] S2, Movable part 2 processing:

[0050] B1. ABS plastic injection molding: Mix ABS plastic granules and anti-aging additives according to the preset formula, put the mixture into the injection molding machine barrel, heat it to 230℃ to melt the plastic granules; then inject the molten ABS plastic into the special mold of movable part 2, hold pressure for 18s, cool and demold to obtain the preliminary molded blank of movable part 2, and remove the burrs and gate residue after demolding.

[0051] B2. Internal Hardware Machining: Aluminum alloy material is selected, and aluminum die casting process is used to inject molten aluminum alloy into the hardware mold to form the blank of the internal hardware pin such as the collar 202 required for the moving part 2; the blank is polished by grinding the surface with a grinding wheel and polishing paste to make the surface roughness ≤Ra0.8μm; then, holes are drilled at the preset positions using a CNC drilling machine, and finally electroplating is performed. The electroplating layer is made of nickel-chromium alloy with a thickness controlled at 10μm to improve the wear resistance and rust prevention of the hardware;

[0052] B3. Subsequent processing of movable part 2: A rectangular groove 201 and an annular groove 203 are machined inside the injection-molded movable part 2 blank using a CNC milling machine to ensure that the size of the rectangular groove 201 is compatible with the rectangular block 102; an annular oil groove with a semi-circular cross section is machined in the annular groove 203 corresponding to the inner wall position of the movable part 2; then the electroplated collar 202 is embedded in the annular groove 203; a wear-resistant coating is applied to the contact surface between the collar 202 and the annular groove 203 and dried.

[0053] During assembly and testing, the rectangular block 102 on the machined rocker arm body 1 is aligned and fitted with the rectangular groove 201 of the movable part 2, so that the movable part 2 is fitted around the threaded rod 103, completing the initial assembly. In terms of performance testing, the assembled fishing reel retrieval rocker arm assembly structure is tested for rotational flexibility to ensure that the movable part 2 rotates smoothly around the threaded rod 103 without jamming. At the same time, the firmness of each connection part is tested. The fitting strength between the rectangular block 102 and the rectangular groove 201 and the connection strength between the threaded rod 103 and the rectangular block 102 are verified by tensile testing, and both must meet the preset mechanical requirements. Finally, the overall structure is visually inspected to ensure that there are no obvious scratches, deformations and assembly deviations. In the finished product processing, the surface of the qualified products is cleaned to remove processing residues. Then, they are classified and packaged according to specifications, and moisture-proof cushioning materials are placed inside the packaging to avoid damage during transportation, thus completing the entire production process.

[0054] Working principle: The assembly of the rectangular block 102 on one side of the rocker arm body 1 with the rectangular groove 201 inside the movable part 2, combined with the threaded connection between the threaded rod 103 and the external fishing gear structure, allows the collar 202 to rotate within the annular groove 203. The lubricating oil in the semi-circular annular oil groove forms a lubricating film by wetting the surface of the wear-resistant coating, reducing relative rotational friction. At the same time, the fine thread structure ensures the stable connection of the movable part 2 structure. Through the above structural cooperation, the stable transmission of torque and the smooth operation of line reeling are achieved when the rocker arm rotates.

[0055] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fishing reel reel arm assembly structure, characterized in that: It includes a rocker arm body (1), a rectangular block (102), and a movable part (2); The top of the rocker arm body (1) is provided with an upper slot (101), the bottom of the rocker arm body (1) is provided with a lower slot (104), a rectangular block (102) is fixedly connected to one side of the rocker arm body (1), and a threaded rod (103) is fixedly connected to one side of the rectangular block (102). The movable part (2) is located on the periphery of the threaded rod (103). A rectangular groove (201) is provided inside the movable part (2). An annular groove (203) is provided inside the movable part (2) on one side of the rectangular groove (201). A collar (202) is provided inside the movable part (2) on one side of the annular groove (203).

2. The fishing reel reel arm assembly structure according to claim 1, characterized in that: The size of the rectangular groove (201) is adapted to the rectangular block (102), and the rectangular block (102) and the rectangular groove (201) are fitted together.

3. The fishing reel reel arm assembly structure according to claim 1, characterized in that: The inner diameter of the annular groove (203) is adapted to the outer diameter of the collar (202), and a wear-resistant coating is provided between the collar (202) and the annular groove (203).

4. The fishing reel reel arm assembly structure according to claim 1, characterized in that: The upper slot (101) and the lower slot (104) have the same depth.

5. The fishing reel reel arm assembly structure according to claim 1, characterized in that: The inner wall of the movable part (2) is provided with an annular oil groove corresponding to the position of the annular groove (203), and the cross-section of the annular oil groove is semi-circular.

6. The fishing reel reel arm assembly structure according to claim 1, characterized in that: The threaded rod (103) has a fine thread, and the thread surface is provided with an oxide treatment layer.

7. The manufacturing process of a fishing reel reel arm assembly structure according to any one of claims 1-6, characterized in that, Includes the following steps: S1. Machining of the rocker arm body (1): A1. Raw material pretreatment: Select high-strength aluminum alloy material, cut the aluminum alloy raw material into blanks that meet the size requirements of the rocker arm body (1) through cutting equipment, and at the same time degrease and remove rust from the surface of the blanks to remove surface oil and oxide layer. A2. Forming and processing: The pre-treated blank is milled using a CNC milling machine. An upper groove (101) is machined at the top and a lower groove (104) is machined at the bottom inside the rocker arm body (1), ensuring that the groove depths of the upper groove (101) and the lower groove (104) are consistent. Then, the rectangular block (102) is fixed to a preset position on one side of the rocker arm body (1) by welding. After welding, the weld is ground to ensure that the surface is flat. A3. Machining of threaded rod (103): Select stainless steel material and machine a threaded rod (103) with fine thread structure using a CNC lathe. Oxidize the thread surface to form an oxide layer. Then, fix the threaded rod (103) to the side of the rectangular block (102) away from the rocker arm body (1) by a combination of threaded connection and welding. S2, Machining of movable part (2): B1. ABS plastic injection molding: Mix ABS plastic granules and anti-aging additives according to the preset formula, put the mixture into the injection molding machine barrel, heat to 220-250℃ to melt the plastic granules; then inject the molten ABS plastic into the special mold of the movable part (2), hold pressure for 15-20s and then cool and demold to obtain the preliminary molded movable part (2) blank. After demolding, remove the burrs and gate residue; B2. Internal hardware processing: Select aluminum alloy material and use aluminum die casting process to press the aluminum alloy melt into the hardware mold to form the blank of the internal hardware pin such as the shaft ring (202) required for the movable part (2); polish the blank, use a grinding wheel and polishing paste to grind the surface in sequence so that the surface roughness is ≤Ra0.8μm; then drill holes in the preset position by CNC drilling machine, and finally perform electroplating treatment. The electroplating layer is selected from nickel-chromium alloy and the thickness is controlled at 8-12μm. B3. Subsequent processing of movable part (2): A rectangular groove (201) and an annular groove (203) are machined inside the injection-molded movable part (2) blank using a CNC milling machine to ensure that the size of the rectangular groove (201) matches the rectangular block (102); an annular oil groove with a semi-circular cross section is machined in the annular groove (203) corresponding to the inner wall position of the movable part (2); then the electroplated collar (202) is embedded in the annular groove (203); a wear-resistant coating is applied to the contact surface between the collar (202) and the annular groove (203) and dried.

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