Leveller straightening mechanism

Abstract

The utility model relates to the field of bow and arrow shaft processing, and disclose a straightening mechanism for striping machine, including first base and second base, install straightening roll between first base and second base, still include outer guide ring, rotating part, first heating part and second heating part, be equipped with the inner guide ring in the outer guide ring, the inside of inner guide ring presents annular array and is fixed with a plurality of guide pulley, the inner guide ring rotates in the outer guide ring through rotating part, the utility model discloses through the cooperation of outer guide ring, inner guide ring and annular array guide pulley, provide annular guide for arrow shaft, effectively avoid the deviation problem in arrow shaft feeding process, simultaneously, rotating part drives the synchronous rotation of inner guide ring and guide pulley, make arrow shaft realize even autorotation while advancing in the axial, ensure that each part of arrow shaft surface stress balance, avoid local and straightening roll or guide structure excessive friction, reduce arrow shaft surface scratch, wear and tear, guarantee arrow shaft appearance and structural integrity.

Description

Technical Field

[0001] This utility model relates to the field of bow and arrow shaft processing, and in particular to a straightening mechanism for arrow straightening machines. Background Technology

[0002] In the field of archery equipment manufacturing, the processing precision of the arrow shaft directly determines the flight stability and shooting accuracy of the arrow. Arrow shafts are mostly made of carbon fiber, glass fiber composite materials or lightweight metal materials. These materials are prone to bending deformation due to external pressure or the release of their own stress during extrusion molding, cutting processing and storage and transportation. Therefore, the arrow shaft needs to be corrected to a high-precision straight shape through the straightening process of the straightening machine to meet the requirements of subsequent assembly and use.

[0003] Currently, most straightening mechanisms used in straightening machines rely on opposing straightening roller sets. These roller sets apply a squeezing force to the arrow shaft to restore its straightness. However, existing mechanisms have several drawbacks: Firstly, during the feeding process, the arrow shaft is prone to excessive friction with the straightening rollers due to feeding deviation. This not only causes scratches on the arrow shaft surface but also results in uneven stress on the bent parts, making it difficult to accurately eliminate deformation and ultimately affecting the straightness accuracy of the arrow shaft. Secondly, the arrow shaft material (especially composite materials) has high rigidity. When relying solely on mechanical extrusion for straightening, a large force must be applied, which can easily lead to fiber breakage or plastic damage to the metal material inside the arrow shaft. It may also cause secondary bending due to residual stress after straightening. In addition, although some mechanisms attempt to add heating modules to assist in softening the material, the heating method is mostly integral heating, which cannot adjust the heating temperature and range according to the arrow shaft straightening process, easily leading to overheating and deformation of the arrow shaft. Utility Model Content

[0004] This utility model proposes a straightening mechanism for a bar-making machine to solve the problems of existing arrow shafts being easily scratched, difficult to straighten accurately, and easily damaged and bent when subjected to mechanical compression.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a straightening mechanism for a strip-making machine, comprising a first base and a second base, wherein a straightening roller is installed between the first base and the second base, and further comprising: An outer guide ring is fixed to the end of the first base, and an inner guide ring is provided inside the outer guide ring. Multiple guide wheels are fixed in a ring array inside the inner guide ring. A rotating component is connected to the inner guide ring, and the inner guide ring rotates within the outer guide ring via the rotating component; The first heating element and the second heating element are arranged sequentially in the first base along the straightening direction and are used to heat the workpiece to be straightened.

[0006] Preferably, the rotating member includes: An electric motor, wherein a gear is mounted on the output end of the motor; A gear ring is fixed outside the inner guide ring and is meshed with a gear.

[0007] Preferably, the inner wall of the outer guide ring is provided with an annular groove, and the outer wall of the inner guide ring is fixed with an annular strip, which slides in conjunction with the annular groove.

[0008] Preferably, the first heating element includes a first hot air plate and a first hot air pipe connected together. The first hot air plate is embedded in the side of the first base facing the second base, and the first hot air plate has a plurality of hot air outlet holes.

[0009] Preferably, the second heating element includes a second hot air plate and a second hot air pipe connected together. The second hot air plate is located behind the first hot air plate. The second hot air plate is embedded in the side of the first base facing the second base, and the second hot air plate has a plurality of hot air outlet holes.

[0010] Preferably, a first temperature sensor and a first electrically controlled valve are installed on the first hot air duct, and a second temperature sensor and a second electrically controlled valve are installed on the second hot air duct.

[0011] The technical effects and advantages provided by this utility model in the above technical solution are as follows: (1) By cooperating with the outer guide ring, inner guide ring and annular array guide wheel, the arrow rod is provided with annular guidance, which effectively avoids the offset problem during the arrow rod feeding process; at the same time, the rotating part drives the inner guide ring and guide wheel to rotate synchronously, so that the arrow rod can achieve uniform self-rotation while moving forward axially, ensuring that the force on each part of the arrow rod surface is balanced, avoiding excessive friction with the straightening roller or guide structure, reducing scratches and wear on the arrow rod surface, and ensuring the appearance and structural integrity of the arrow rod.

[0012] (2) The first temperature sensor and the first electric control valve of the first hot air pipe and the second temperature sensor and the second electric control valve of the second hot air pipe form independent temperature control units, which can monitor and adjust the air volume of the two sets of hot air plates in real time, ensuring that the first heating element provides high-temperature hot air as required to soften the material, and the second heating element maintains the plasticity of the material at a lower temperature, which avoids the deformation of the arrow shaft caused by overheating and prevents the straightening effect from being affected by insufficient heating. The differentiated gradient heating mode reduces unnecessary heat consumption and lowers energy consumption costs while ensuring the straightening quality. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 A schematic diagram of the overall structure from another angle; Figure 3 This is a schematic diagram of the overall structure of the present invention in the cross-sectional view of the first base; Figure 4 This is a structural diagram of the outer guide ring, outer guide ring and rotating component of this utility model in their disassembled state; In the diagram: 1. First base; 2. Second base; 3. Straightening roller; 4. Outer guide ring; 41. Annular groove; 5. Inner guide ring; 51. Annular strip; 52. Guide wheel; 6. Rotating component; 61. Motor; 62. Gear; 63. Gear ring; 7. First heating element; 71. First hot air coil; 72. First hot air pipe; 73. First temperature sensor; 74. First electrically controlled valve; 8. Second heating element; 81. Second hot air coil; 82. Second hot air pipe; 83. Second temperature sensor; 84. Second electrically controlled valve. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figures 1-4As shown, a straightening mechanism for a bar reeling machine includes a first base 1 and a second base 2. A straightening roller 3 is installed between the first base 1 and the second base 2. Multiple sets of straightening rollers 3 are arranged along the length of the first base 1, with each set consisting of two rotatable straightening rollers 3, one above the other. In addition, it includes an outer guide ring 4 and a rotating component 6. The outer guide ring 4 is fixed to the end of the first base 1. The bar to be straightened passes through the outer guide ring 4 and enters the area of ​​the straightening roller 3 for straightening. An inner guide ring 5 is provided inside the outer guide ring 4. Multiple guide wheels 52 are fixed in a circular array inside the inner guide ring 5. The guide wheels 52 are rotatable and guide the bar to be straightened to move forward and enter the area of ​​the straightening roller 3. The rotating component 6 is connected to the inner guide ring 5. The inner guide ring 5 rotates inside the outer guide ring 4 through the rotating component 6. The bar to be straightened passes through the inner guide ring 5. Among them, see Figure 4 As shown, the rotating component 6 includes a motor 61 and a gear ring 63. The motor 61 is a geared motor to prevent the arrow shaft from being deviated from its feeding position or scratched due to excessive speed. A gear 62 is installed at the output end of the motor 61. The gear ring 63 is fixed to the outside of the inner guide ring 5 and is meshed with the gear 62. When the motor 61 is started, it outputs power according to preset parameters (such as speed and torque), which drives the gear 62 at its output end to rotate synchronously. The gear 62 drives the meshing gear ring 63 to rotate, which in turn drives the inner guide ring 5 to rotate within the outer guide ring 4. The friction between the guide wheel 52 on the inner wall of the inner guide ring 5 and the surface of the arrow shaft drives the arrow shaft to rotate synchronously. At the same time, in conjunction with the feeding mechanism, the arrow shaft is rotated and moved forward axially while being fed, ensuring that the arrow shaft can be fed in a uniform posture when it enters the straightening mechanism.

[0017] During the rotating feeding process, the arrow rod rotates synchronously with the inner guide ring 5, and all parts of the surface are in uniform contact with the inner wall of the channel, avoiding excessive local friction and reducing surface damage. At the same time, the rotation process allows the arrow rod to adjust its posture when entering the straightening mechanism, so that the bent parts are evenly stressed. This allows for more precise elimination of bending deformation during subsequent straightening, improving the straightness and surface smoothness of the arrow rod after final straightening.

[0018] The inner wall of the outer guide ring 4 is provided with an annular groove 41, and the outer wall of the inner guide ring 5 is fixed with an annular strip 51. The annular strip 51 slides in conjunction with the annular groove 41. When the inner guide ring 5 rotates, the annular strip 51 slides along the annular groove 41, which can ensure the stability of the rotation of the inner guide ring 5.

[0019] See Figures 1-3 As shown, the straightening mechanism of the strip-making machine also includes a first heating element 7 and a second heating element 8. The first heating element 7 and the second heating element 8 are arranged sequentially in the first base 1 along the straightening direction and are used to heat the strip to be straightened. The first heating element 7 and the second heating element 8 heat the strip at different temperatures.

[0020] Among them, see Figures 2-3As shown, the first heating element 7 includes a first hot air plate 71 and a first hot air pipe 72 connected together. The first hot air plate 71 is embedded in the side of the first base 1 facing the second base 2, and has multiple hot air outlets. A first temperature sensor 73 and a first electrically controlled valve 74 are installed on the first hot air pipe 72. A hot air blower is connected to the air inlet end of the first hot air pipe 72. During straightening, hot air is introduced through the first hot air pipe 72, and the hot air is directed through the multiple hot air outlets on the first hot air plate 71 to the forward-moving part of the heating element. The arrow to be straightened is heated to soften it to a certain extent, which is beneficial for subsequent straightening. The first temperature sensor 73 monitors the hot air outlet temperature. When the temperature exceeds the preset threshold, the first electric control valve 74 can respond quickly and precisely control the hot air flow by adjusting the valve core opening. This ensures that the hot air temperature output by the first hot air plate 71 is stable within a suitable range, so that the arrow to be straightened can be fully and uniformly heated and softened in the early stage of straightening, providing good conditions for subsequent straightening deformation.

[0021] See Figures 2-3 As shown, the second heating element 8 includes a connected second hot air plate 81 and a second hot air pipe 82. The second hot air plate 81 is located behind the first hot air plate 71 and is embedded in the side of the first base 1 facing the second base 2. The second hot air plate 81 has multiple hot air outlets. The second hot air pipe 82 is equipped with a second temperature sensor 83 and a second electric control valve 84. The air inlet end of the second hot air pipe 82 is connected to a hot air blower. During straightening, hot air is introduced through the second hot air pipe 82. The hot air heats the arrow shaft to be straightened in the forward state through the multiple hot air outlets on the second hot air plate 81, which can soften it to a certain extent and facilitate subsequent straightening. The hot air outlet temperature is monitored by the second temperature sensor 83. Since the second hot air plate 81 is located in the later stage of straightening, by setting a lower hot air volume, the appropriate plasticity of the arrow shaft can be maintained, avoiding secondary deformation caused by excessive temperature, and reducing excessive heat consumption.

[0022] To ensure that the hot air output of the first hot air plate 71 is greater than that of the second hot air plate 81, the initial opening of the two electrically controlled valves can be set differently by the controller. At the same time, the temperature data fed back by the temperature sensor in real time will dynamically adjust the valve opening to form a collaborative control mechanism. In actual operation, the first hot air plate 71 usually heats the arrow shaft to a temperature range that reduces the yield strength of the material by 30%-40%, while the second hot air plate 81 maintains a temperature level that reduces the yield strength of the material by 15%-20%. This gradient heating method can ensure the smooth progress of the straightening process and ensure the dimensional stability and mechanical properties of the arrow shaft after straightening.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A straightening mechanism for a strip-making machine, comprising a first base (1) and a second base (2), wherein a straightening roller (3) is installed between the first base (1) and the second base (2), characterized in that... Also includes: An outer guide ring (4) is fixed to the end of the first base (1), and an inner guide ring (5) is provided inside the outer guide ring (4). Multiple guide wheels (52) are fixed in a ring array inside the inner guide ring (5). A rotating component (6) is connected to the inner guide ring (5), and the inner guide ring (5) rotates within the outer guide ring (4) via the rotating component (6); The first heating element (7) and the second heating element (8) are arranged sequentially in the first base (1) along the straightening direction and are used to heat the part to be straightened.

2. The straightening mechanism for a strip-making machine according to claim 1, characterized in that: The rotating component (6) includes: Motor (61), the output end of which is equipped with gear (62); A toothed ring (63) is fixed outside the inner guide ring (5), and the toothed ring (63) is meshed with the gear (62).

3. The straightening mechanism for a strip-making machine according to claim 1, characterized in that: The inner wall of the outer guide ring (4) is provided with an annular groove (41), and the outer wall of the inner guide ring (5) is fixed with an annular strip (51), which slides in conjunction with the annular groove (41).

4. The straightening mechanism for a strip-making machine according to claim 1, characterized in that: The first heating element (7) includes a first hot air plate (71) and a first hot air pipe (72) connected together. The first hot air plate (71) is embedded in the side of the first base (1) facing the second base (2), and the first hot air plate (71) has a plurality of hot air outlet holes.

5. The straightening mechanism for a strip-making machine according to claim 4, characterized in that: The second heating element (8) includes a connected second hot air plate (81) and a second hot air pipe (82). The second hot air plate (81) is located on the rear side of the first hot air plate (71). The second hot air plate (81) is embedded in the side of the first base (1) facing the second base (2), and the second hot air plate (81) has a plurality of hot air outlet holes.

6. The straightening mechanism for a strip-making machine according to claim 5, characterized in that: The first hot air duct (72) is equipped with a first temperature sensor (73) and a first electric control valve (74), and the second hot air duct (82) is equipped with a second temperature sensor (83) and a second electric control valve (84).

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