Tow steering device and automatic tow placement machine

Abstract

The invention relates to the technical field of automatic laying of composite materials, in particular to a tow steering device and an automatic tow laying machine. The tow steering device comprises a mounting rack and at least one balance wheel assembly rotationally mounted on the mounting rack. The balance wheel assembly comprises a tow steering frame rotationally connected to the mounting rack and at least one roller rotationally mounted on the tow steering frame; the two opposite ends of a rotating shaft of the roller are rotationally connected to the two opposite blocking walls, arranged at intervals, of the tow steering frame respectively, and a gap is formed between the two opposite wheel faces of the roller, so that an annular groove surrounding the rotating shaft in the circumferential direction is defined by the two wheel faces and a shaft sleeve of the rotating shaft. The tows are guided in from one end side of the annular groove, bypass the annular groove and are guided out from the other end side of the annular groove. The problems that tows are prone to deviation, overturning, knotting and abrasion are solved, the tow conveying stability and precision are improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of automatic placement of composite materials, and in particular to a tow steering device and an automatic tow placing machine. Background Art

[0002] Automatic fiber placement technology is a new type of composite material automated molding technology developed on the basis of winding technology and automatic tape laying technology. It is widely used in the automated manufacturing of large composite parts such as wings, rudders, horizontal tails, and fuselage barrels. The automatic fiber placement machine mainly realizes the three-axis orthogonal movement of the fiber placement head in space through its machine tool main device or robot device. The fiber placement head is the most critical functional component of the fiber placement machine. The fiber placement head of a typical fiber placement machine generally includes a fiber bundle traction distribution device, feeding, clamping, shearing, heating and compacting devices to realize various laying functions of the fiber placement machine.

[0003] Existing automatic composite material laying machines usually include 8-tow, 16-tow or 32-tow laying machines. Each strand of the strand is released by a separate strand material reel reel assembly. The strands of the strands do not affect each other. Before the laying machine lays the strands, the strands will pass through the strand steering, clamping, strand re-feeding, shearing and other modules. Finally, multiple strands of the strands will be gathered to the laying head and laid according to the predetermined path and angle. To this end, it is necessary to change the running direction of the strands through a strand steering mechanism. The core task of the laying machine is to ensure that the fiber strands always maintain accurate position and direction during high-speed transmission to achieve the manufacture of high-quality composite components.

[0004] However, due to the flexibility of fiber bundles and their susceptibility to external interference, in actual operation, the bundles are prone to deviation, flipping or knotting, which can lead to equipment failure and production interruption, seriously affecting the laying effect and production efficiency. For example, in the prior art, the transmission direction of the bundle is guided by a groove set on a guide wheel. The guide wheel is fixed on the frame of the laying machine, and the bundle is guided by the groove of the guide wheel for transmission. When using this guide device during high-speed transmission, on the one hand, the bundle is prone to slip due to insufficient friction, which can easily cause the bundle to deviate from the predetermined transmission path, affecting the transmission stability and transmission accuracy, and affecting production efficiency and product quality; on the other hand, there is a large friction between the groove of the guide wheel and the bundle, which can easily cause the bundle to wear and the device to wear, increasing maintenance costs. Summary of the invention

[0005] The purpose of the present application is to provide a yarn bundle steering device and an automatic yarn laying machine to solve the problems of yarn bundles being easily deflected, flipped, tangled and worn, to improve the stability and accuracy of yarn bundle transmission and to reduce maintenance costs.

[0006] In a first aspect, the present application provides a tow steering device, comprising: Install the rack; and Rotating at least one balance wheel assembly mounted on the mounting frame; The balance wheel assembly includes a tow steering frame rotatably connected to the mounting frame, and at least one roller rotatably mounted on the tow steering frame; The opposite ends of the rotating shaft of the roller are respectively rotatably connected to two opposite and spaced-apart retaining walls of the tow steering frame, and there is a spacing between the two opposite wheel surfaces of the roller, so that an annular groove surrounding the circumference of the rotating shaft is formed between the two wheel surfaces and the shaft sleeve of the rotating shaft, and the tow is introduced from one end side of the annular groove, bypasses the annular groove and is led out from the other end side thereof.

[0007] Furthermore, the tow steering frame also includes a top connecting wall, the opposite end sides of the top connecting wall are connected to the tops of the two retaining walls, the top connecting wall is rotatably connected to the mounting frame, and the top connecting wall is arranged higher than the roller, so that there is an avoidance space between the top connecting wall and the top of the wheel surface of the roller.

[0008] Furthermore, the balance wheel assembly is rotatably connected in sequence along the lateral extension direction of the retaining wall to connect two rollers arranged side by side at intervals, namely a first roller on the inner side and a second roller on the outer side; The first roller is formed with a first annular groove, the second roller is formed with a second annular groove, the first annular groove and the second annular groove together form a tow steering channel, the lower side or the upper side of the second annular groove is a tow inlet of the tow steering channel, and the lower side or the upper side of the first annular groove is a tow outlet of the tow steering channel; The filament bundle is introduced from the filament bundle inlet on the lower side or upper side of the second annular groove, goes around upward or downward to the upper side or lower side of the first annular groove, and after bypassing the first annular groove, is led out from the filament bundle outlet on the lower side or upper side of the first annular groove.

[0009] Further, the mounting frame includes a mounting plate and at least one balance wheel mounting bracket fixedly connected to the mounting plate, and the top connecting wall of the tow steering frame is rotatably connected to the balance wheel mounting bracket; The balance wheel mounting bracket is extended along a first direction, one end of which along the first direction is a fixed end fixedly connected to the mounting plate, and the other end is an extended end, and the extended end is rotatably connected to at least one balance wheel assembly.

[0010] Furthermore, the balance wheel mounting bracket includes a first balance wheel mounting bracket, the extending end of the first balance wheel mounting bracket is sequentially and spaced apart from each other along a second direction perpendicular to the first direction and is provided with two rotation connection hole positions, each of which is used to rotationally connect to one of the balance wheel assemblies, and the two balance wheel assemblies are arranged oppositely and symmetrically, the wire bundle outlet sides of the two balance wheel assemblies are arranged oppositely and spaced apart, the spaced position forms a first wire bundle outlet channel, and the wire bundle inlet sides of the two balance wheel assemblies are arranged outward; and / or The balance wheel mounting bracket includes at least two second balance wheel mounting brackets, and the extending end of the second balance wheel mounting bracket is provided with a rotating connection hole for rotatingly connecting to one of the balance wheel assemblies, wherein the two second balance wheel mounting brackets are arranged opposite to each other and at intervals, so that the wire bundle outlet sides of the two balance wheel assemblies are arranged opposite to each other and at intervals, and the interval position forms a second wire bundle outlet channel, and the wire bundle inlet sides of the two balance wheel assemblies are arranged outward.

[0011] Furthermore, the balance wheel mounting bracket includes a first balance wheel mounting bracket located at an upper middle position and two second balance wheel mounting brackets located at opposite sides below the first balance wheel mounting bracket and spaced from each other; The first wire bundle lead-out channel formed by the two balance wheel assemblies of the first balance wheel mounting bracket and the second wire bundle lead-out channels formed by the two balance wheel assemblies of the second balance wheel mounting brackets converge and overlap to form a common wire bundle lead-out channel.

[0012] Furthermore, the rotating connection holes of the two second balance wheel mounting brackets are respectively fixedly connected to limit pins on opposite sides along the first direction, and the two limit pins are spaced apart from the rotating connection holes, and the upper and lower ends of the limit pins pass through the second balance wheel mounting bracket and extend upward and downward respectively, so as to limit the balance wheel assembly above the second balance wheel mounting bracket and the balance wheel assembly below the second balance wheel mounting bracket respectively.

[0013] Furthermore, one side of the top connecting wall is arranged close to the tow outlet side of the balance wheel assembly; The lateral width of the top connecting wall is smaller than the lateral extension width of the blocking wall.

[0014] Further, the top connecting wall of the tow steering frame is rotatably connected to the balance wheel mounting bracket through a steering rotation connection assembly, and the steering rotation connection assembly includes a steering bearing rotatably connected to the top connecting wall, a bearing spacer with a clearance fit with the steering bearing, and a bearing gasket located between the top of the steering bearing and the balance wheel mounting bracket, and the steering bearing and the bearing spacer form a rotating pair; and / or The mounting frame also includes a fixing frame, one end of which is fixedly connected to a side of the mounting plate away from the balance wheel mounting bracket, and the other end is used to be fixed on a yarn box frame of the automatic yarn placing machine.

[0015] In a second aspect, the present application provides an automatic wire laying machine, which is based on the wire bundle steering device described in any one of the above, and includes a wire laying machine frame and two groups of the wire bundle steering devices arranged on opposite sides of the wire laying machine frame.

[0016] Compared with the prior art, the present application provides a tow steering device and an automatic wire laying machine, wherein the tow steering device comprises an installation frame, and at least one balance wheel assembly rotatably mounted on the installation frame, the balance wheel assembly comprises a tow steering frame rotatably connected to the installation frame, and at least one roller rotatably mounted between two relatively spaced retaining walls of the tow steering frame, a rotating shaft is provided at the center of the roller, a wheel surface of the roller rotates around the central rotating shaft, opposite ends of the rotating shaft of the roller are rotatably connected to the two retaining walls respectively, and there is a spacing between the two opposite wheel surfaces of the roller, so that an annular groove surrounding the circumference of the rotating shaft is formed between the two wheel surfaces and the shaft sleeve of the rotating shaft, the annular groove forms a tow steering channel, the tow can be introduced from one end side (the tow introduction side) of the annular groove, bypass the annular groove and be guided out from the other end side (the tow outlet side), specifically, the tow can be released from the tow material roll reel-winding assembly, and the tow introduction side of the annular groove of the balance wheel assembly can be arranged close to the tow material roll reel-winding assembly.

[0017] First, a balance wheel assembly rotatably connected to the mounting frame is adopted, so that the balance wheel assembly can rotate flexibly and has multiple rotation angles, so that the tow introduction side of the annular groove position of the balance wheel assembly can flexibly adapt to the tow release at different angles from the tow material reel take-up and release assembly, and flexibly adapt to the tow feeding angle, instead of the tow material reel take-up and release assembly looking for a fixed wire introduction slot, thereby effectively avoiding the problems of tow flipping, offsetting, and knotting, improving the stability and accuracy of tow transmission, reducing maintenance costs and enhancing adaptability; Secondly, after the yarn bundle is introduced into the annular groove of the flexibly swinging balance wheel assembly, the yarn bundle is limited by the two relative wheel surfaces of the annular groove, which effectively limits the transportation path of the yarn bundle, so that the yarn bundle can always remain in the predetermined position during the transportation process. At the same time, due to the flexible swing of the balance wheel assembly, it will not give excessive resistance to the yarn bundle while limiting. While playing a limiting role, it will not damage the yarn bundle, further avoiding the problems of yarn bundle deviation, friction damage, flipping, and falling off, effectively improving the transportation accuracy of the yarn bundle, ensuring the stability of the yarn bundle during high-speed transportation, reducing wear, enhancing adaptability, reducing maintenance costs, and thereby improving the quality of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A schematic diagram of the structure of the tow steering device provided in an embodiment of the present application when in use; Figure 2 A schematic diagram of the structure of a tow steering device provided in an embodiment of the present application; Figure 3 A schematic diagram of the structure of the mounting rack provided in the embodiment of the present application; Figure 4 A schematic diagram of the structure of a balance wheel assembly provided in an embodiment of the present application; Figure 5 A schematic cross-sectional view of a balance wheel assembly provided in an embodiment of the present application; Figure 6 A schematic diagram of the structure of the automatic wire placing machine provided in an embodiment of the present application.

[0020] Reference numerals: 100-tow steering device; 10- Install the rack; 11-fixed frame; 12-Mounting plate; 121- second mounting hole; 13-First balance wheel mounting bracket; 14-Second balance wheel mounting bracket; 141-limit pin; 151-fixed end; 152- extension end; 16- Rotate the connection hole; 17-steering rotation connection assembly; 171-steering bearing; 172-bearing gasket; 20-balance wheel assembly; 211-first balance wheel assembly; 212-second balance wheel assembly; 22-tow steering frame; 221- first retaining wall; 222- second retaining wall; 223-top connecting wall; 2231-first mounting hole; 224-avoidance space; 23- first roller; 231-first annular groove; 24- second roller; 241 - second annular groove; 251-wheel surface; 252-rotating shaft; 253-sleeve; 254-roller bearing; 255-roller bearing spacer; 261-tow introduction port; 262-tow outlet; 200-Automatic wire laying machine; 201-wire laying machine frame; 202-tow; 203-Pre-re-delivery mechanism. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0028] like Figures 1 to 6 As shown, an embodiment of the present application provides a yarn bundle steering device 100 and an automatic yarn laying machine 200 using the yarn bundle steering device 100 .

[0029] The tow steering device 100 provided in the embodiment of the present application may include a mounting frame 10 and at least one balance wheel assembly 20. The balance wheel assembly 20 is rotatably mounted on the mounting frame 10, and the mounting frame 10 may be fixed on the tow laying machine frame 201 of the automatic tow laying machine 200; the balance wheel assembly 20 may include a tow steering frame 22 and at least one roller rotatably mounted on the tow steering frame 22, the tow steering frame 22 includes two opposing and spaced baffle walls, namely, a first baffle wall 221 and a second baffle wall 222, the center of the roller may be provided with a rotating shaft 252, the wheel surface 251 of the roller rotates around the central rotating shaft 252, the roller is rotatably connected between the first baffle wall 221 and the second baffle wall 222 through its rotating shaft 252, and the opposite ends of the rotating shaft 252 are rotatably connected to the first baffle wall 221 and the second baffle wall 222, respectively. 222; and there is a spacing between the two relative wheel surfaces 251 of the roller, so that the two wheel surfaces 251 and the sleeve 253 of the rotating shaft 252 form an annular groove along the circumference of the rotating shaft 252, and the annular groove forms a yarn bundle steering channel, so that the yarn bundle 202 is introduced from one end side (the yarn bundle introduction side) of the annular groove, bypasses the annular groove and is led out from the other end side (the yarn bundle outlet side) thereof. Specifically, the yarn bundle 202 can be released from the yarn bundle material roll reel-and-winding assembly of the automatic wire laying machine 200, the yarn bundle introduction side of the annular groove of the balance wheel assembly 20 can be arranged close to the yarn bundle material roll reel-and-winding assembly, and the yarn bundle outlet 262 of the yarn bundle steering device 100 corresponds to the pre-weight delivery mechanism 203 of the next level leading to the automatic wire laying machine 200.

[0030] Compared with the prior art, the tow steering device 100 and the automatic wire laying machine 200 provided in the embodiment of the present application. First, the balance wheel assembly 20 is rotatably connected to the mounting frame 10, so that the balance wheel assembly 20 can rotate flexibly and have multiple rotation angles, so that the tow introduction side of the annular groove position of the balance wheel assembly 20 can flexibly adapt to the release of the tow 202 at different angles from the tow material reel take-up assembly, and flexibly adapt to different feeding angles of the tow 202, instead of the tow material reel take-up assembly looking for a fixed wire introduction slot, thereby effectively avoiding the problems of tow 202 flipping, offsetting, and knotting, improving the transmission stability and transmission accuracy of the tow 202, reducing maintenance costs and enhancing adaptability.

[0031] Second, after the yarn bundle 202 is introduced into the annular groove of the flexibly swinging balance wheel assembly 20, the yarn bundle 202 is limited by the two relative wheel surfaces 251 of the annular groove, which effectively limits the transportation path of the yarn bundle 202, so that the yarn bundle 202 can always remain in the predetermined position during the transportation process. At the same time, due to the flexible swing of the balance wheel assembly 20, the yarn bundle 202 will not be given excessive resistance while limiting. While playing a limiting role, the yarn bundle 202 will not be damaged, further avoiding the problems of yarn bundle 202 deviation, friction damage, flipping, and falling off, effectively improving the transportation accuracy of the yarn bundle 202, ensuring the stability of the yarn bundle 202 during high-speed transportation, reducing wear, enhancing adaptability, reducing maintenance costs, and thereby improving the quality of the final product.

[0032] A preferred embodiment is as follows Figure 4 As shown, the aforementioned tow turning frame 22 may also include a top connecting wall 223, the opposite two end sides of which are connected to the tops of the two baffle walls (the first baffle wall 221 and the second baffle wall 222), and the top connecting wall 223 is rotatably connected to the mounting frame 10, and the top connecting wall 223 is also provided with a first mounting hole 2231 for rotatably connecting to the mounting frame 10. The balance wheel assembly 20 is connected to the mounting frame 10 through the top connecting wall 223, so that the entire assembly below the top of the balance wheel assembly 20 can be flexibly swung in a larger range, and the flexible swing requirements of the balance wheel assembly 20 at different angles can be met as much as possible, thereby further improving the adaptability and stability of the balance wheel assembly 20.

[0033] On the basis of the aforementioned embodiment, further, it is preferred that the top connecting wall 223 is set higher than the roller, so that there is an avoidance space 224 between the top connecting wall 223 and the top of the wheel surface 251 of the roller. In this way, not only the top connecting wall 223 will not affect the rotation of the roller, but the top connecting wall 223 located at the top can also play the role of a top limiter, further limiting the yarn bundle to remain in a predetermined path in the yarn bundle turning channel formed by the annular groove, further effectively preventing the yarn bundle from deviating, and improving the transmission stability and transmission accuracy of the yarn bundle 202.

[0034] On the basis of the above-mentioned embodiment, it is more preferred that one side of the top connecting wall 223 is arranged close to the tow outlet side of the balance wheel assembly 20, so as to further satisfy the balance wheel assembly 20 to be able to swing flexibly in the largest possible range. And it is preferred that the lateral width (i.e., along the lateral direction c) of the top connecting wall 223 is smaller than the lateral extension (i.e., along the lateral direction c) width of the baffle wall (i.e., the first baffle wall 221 and the second baffle wall 222), so as to further avoid the work of the roller and not affect the work of the roller turning to transmit the tow 202.

[0035] like Figure 4As shown, a specific embodiment is that the balance wheel assembly 20 is rotatably connected in sequence along the lateral extension direction (i.e., the extension direction along the lateral direction c) of the retaining wall (i.e., the first retaining wall 221 and the second retaining wall 222) to have two rollers spaced side by side, which are the first roller 23 on the inner side and the second roller 24 on the outer side. Of course, according to actual conditions, more rollers can also be spaced side by side along the extension direction of the lateral direction c. The embodiment of the present application is illustrated by taking a balance wheel assembly 20 with two other rollers as an example.

[0036] Correspondingly, the first roller 23 is formed with a first annular groove 231, and the second roller 24 is formed with a second annular groove 241. The first annular groove 231 and the second annular groove 241 together form a wire bundle steering channel. At the same time, the first baffle wall 221 and the second baffle wall 222 can assist in playing the role of lateral limiting blocking, further ensuring that the wire bundle 202 remains in the predetermined path for steering and transportation. The two rollers and the two annular grooves can further enhance the stability of the steering and transportation of the wire bundle 202, and the transmission path is more stable and reliable.

[0037] like Figure 1 As shown, specifically, the lower side or upper side of the second annular groove 241 can be the tow inlet 261 of the tow steering channel, and the lower side or upper side of the first annular groove 231 can be the tow outlet 262 of the tow steering channel, which can be selected according to actual conditions.

[0038] The tow 202 can be introduced from the tow introduction port 261 on the lower or upper side of the second annular groove 241, go around upward or downward to the upper or lower side of the first annular groove 231, bypass the first annular groove 231, and then be led out from the tow lead-out port 262 on the lower or upper side of the first annular groove 231. For example, Figure 1 The specific embodiment provided by the present application shown is that the filament bundle 202 is introduced from the filament bundle inlet 261 on the lower side of the second annular groove 241, goes around to the upper side of the first annular groove 231, bypasses the first annular groove 231, and is then led out from the filament bundle outlet 262 on the lower side of the first annular groove 231. The filament bundle 202 can be turned from horizontal to longitudinal.

[0039] Regarding the installation of the rack 10, Figures 1 to 3As shown, the mounting frame 10 provided in the embodiment of the present application may include a fixing frame 11, a mounting plate 12 and at least one balance wheel mounting bracket fixedly connected to the mounting plate 12, the mounting plate 12 is provided with a plurality of second mounting holes 121, the balance wheel mounting bracket can be fixedly mounted on the mounting plate 12 through the second mounting holes 121, the balance wheel mounting bracket is used to rotatably connect the balance wheel assembly 20, specifically, is rotatably connected to the top connecting wall 223 of the bundle steering frame 22 of the balance wheel assembly 20, more specifically, the balance wheel mounting bracket is extended along a first direction a, one end of which along the first direction a is a fixed end 151 fixedly connected to the mounting plate 12, and the other end is an extension end 152, and the extension end 152 is rotatably connected to at least one balance wheel assembly 20; one end of the fixing frame 11 is fixedly connected to a side of the mounting plate 12 away from the side connected to the balance wheel mounting bracket, and the other end is used to be fixed on the frame of the silk laying head yarn box of the automatic silk laying machine 200.

[0040] An optional embodiment is that the balance wheel mounting bracket may include a first balance wheel mounting bracket 13, and the extension end 152 of the first balance wheel mounting bracket 13 is sequentially provided with two rotation connection holes 16 spaced apart along a second direction b perpendicular to the first direction a, each used to rotationally connect a balance wheel assembly 20 (specifically, a first balance wheel assembly 211), and the two first balance wheel assemblies 211 are arranged oppositely and symmetrically, the wire bundle outlet sides of the two first balance wheel assemblies 211 are arranged oppositely and spaced apart, and the spaced position forms a first wire bundle outlet channel, and the wire bundle inlet sides of the two first balance wheel assemblies 211 are arranged outward. The installation and use of two balance wheel assemblies 20 can be realized through one balance wheel mounting bracket, which is efficient and reliable.

[0041] Another optional embodiment is that the balance wheel mounting bracket may include a second balance wheel mounting bracket 14, and the extending end 152 of the second balance wheel mounting bracket 14 is provided with a rotating connection hole 16 for rotatingly connecting a balance wheel assembly 20 (specifically, a second balance wheel assembly 212), that is, a second balance wheel mounting bracket 14 can be rotatably connected to a second balance wheel assembly 212, and preferably may include two second balance wheel mounting brackets 14, the two second balance wheel mounting brackets 14 are arranged opposite to each other and at intervals, so that the wire bundle lead-out sides of the two second balance wheel assemblies 212 are arranged opposite to each other and at intervals, and the interval position forms a second wire bundle lead-out channel, and the wire bundle lead-in sides of the two second balance wheel assemblies 212 are arranged outward, so that the installation and use of two balance wheel assemblies 20 can be realized at the same time, thereby improving work efficiency.

[0042] A more preferred embodiment is that the balance wheel mounting bracket may include a first balance wheel mounting bracket 13 located in the upper middle position and two second balance wheel mounting brackets 14 located on opposite sides below the first balance wheel mounting bracket 13 and spaced from each other; the first wire bundle outlet passage formed by the two first balance wheel assemblies 211 of the first balance wheel mounting bracket 13 and the second wire bundle outlet passage formed by the two second balance wheel assemblies 212 of the two second balance wheel mounting brackets 14 are converged and overlapped into a common wire bundle outlet passage. The first balance wheel mounting bracket 13 and the second balance wheel mounting bracket 14 can be used in coordination, the setting positions are reasonably arranged, the structure is compact, and four balance wheel assemblies 20 can be used to work together at the same time, further improving the working efficiency.

[0043] like Figures 1 to 3 As shown, a more preferred embodiment is that the rotation connection hole positions 16 of the two second balance wheel mounting brackets 14 can be fixedly connected with limit pins 141 on opposite sides along the first direction a, and the limit pins 141 are preferably vertically arranged, and the two limit pins 141 are spaced apart from the rotation connection hole positions 16, and the upper end and the lower end of the limit pin 141 pass through the second balance wheel mounting bracket 14 to extend upward and downward respectively, so as to limit the first balance wheel assembly 211 above the second balance wheel mounting bracket 14 and the second balance wheel assembly 212 located below the second balance wheel mounting bracket 14 respectively.

[0044] By setting the limit pin 141, the swing amplitude of the balance assembly 20 (the first balance assembly 211 and the second balance assembly 212) can be effectively limited, and the swing amplitude of the balance assembly 20 can be effectively prevented from being too large, causing the yarn bundle 202 to flip over and knot, thereby ensuring the stability and transmission accuracy of the yarn bundle 202, reducing equipment failures and production interruptions, and improving the continuity and stability of the production line.

[0045] A specific embodiment is as follows Figure 2 and Figure 3 As shown, the top connecting wall 223 of the tow steering frame 22 of the balance wheel assembly 20 is rotatably connected to the balance wheel mounting bracket through the steering rotation connecting assembly 17. The steering rotation connecting assembly 17 may specifically include a steering bearing 171 rotatably connected to the top connecting wall 223, a bearing spacer with a clearance fit with the steering bearing 171, and a bearing gasket 172 located between the top of the steering bearing 171 and the balance wheel mounting bracket, and the steering bearing 171 and the bearing spacer form a rotating pair.

[0046] An optional embodiment is as follows Figure 4 and Figure 5 As shown, the aforementioned first roller 23 is a large diameter roller, the second roller 24 is a small diameter roller, and the bottom surface annular diameter of the first annular groove 231 of the first roller 23 is larger than the bottom surface annular diameter of the second annular groove 241 of the second roller 24. Transmission accuracy is improved.

[0047] like Figure 5 As shown, in a specific embodiment, the opposite ends of the rotating shaft 252 of the roller can be rotatably connected to the first retaining wall 221 and the second retaining wall 222 through a bearing assembly, and the bearing assembly can specifically include a roller bearing 254 and a roller bearing spacer 255.

[0048] Another preferred embodiment is as follows Figure 6 As shown, at least two sets of the tow steering devices 100 provided in the embodiment of the present application may be included. The two sets of tow steering devices 100 may be respectively arranged on two opposite sides of the wire laying machine frame 201 of the automatic wire laying machine 200, that is, Figure 6 What can be shown is one side of the wire laying machine frame 201, on which a group of wire bundle steering devices 100 can be set, and another group of wire bundle steering devices 100 can be set on the other side opposite thereto, thereby greatly improving the working efficiency, and the structure is compact and efficient.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A tow steering device, characterized in that: include: Install the rack; and Rotating at least one balance wheel assembly mounted on the mounting frame; The balance wheel assembly includes a tow steering frame rotatably connected to the mounting frame, and at least one roller rotatably mounted on the tow steering frame; The opposite ends of the rotating shaft of the roller are respectively rotatably connected to two opposite and spaced-apart retaining walls of the tow steering frame, and there is a spacing between the two opposite wheel surfaces of the roller, so that an annular groove surrounding the circumference of the rotating shaft is formed between the two wheel surfaces and the shaft sleeve of the rotating shaft, and the tow is introduced from one end side of the annular groove, bypasses the annular groove and is led out from the other end side thereof.

2. The tow steering device according to claim 1, characterized in that: The tow steering frame also includes a top connecting wall, the opposite end sides of the top connecting wall are connected to the tops of the two blocking walls, the top connecting wall is rotatably connected to the mounting frame, and the top connecting wall is arranged higher than the roller, so that there is an avoidance space between the top connecting wall and the top of the wheel surface of the roller.

3. The tow steering device according to claim 2, characterized in that: The balance wheel assembly is rotatably connected in sequence along the lateral extension direction of the retaining wall to two rollers arranged side by side at intervals, namely a first roller on the inner side and a second roller on the outer side; The first roller is formed with a first annular groove, the second roller is formed with a second annular groove, the first annular groove and the second annular groove together form a tow steering channel, the lower side or the upper side of the second annular groove is a tow inlet of the tow steering channel, and the lower side or the upper side of the first annular groove is a tow outlet of the tow steering channel; The filament bundle is introduced from the filament bundle inlet on the lower side or upper side of the second annular groove, goes around upward or downward to the upper side or lower side of the first annular groove, and after bypassing the first annular groove, is led out from the filament bundle outlet on the lower side or upper side of the first annular groove.

4. The tow steering device according to claim 2 or 3, characterized in that: The mounting frame comprises a mounting plate and at least one balance wheel mounting bracket fixedly connected to the mounting plate, and the top connecting wall of the tow steering frame is rotatably connected to the balance wheel mounting bracket; The balance wheel mounting bracket is extended along a first direction, one end of which along the first direction is a fixed end fixedly connected to the mounting plate, and the other end is an extended end, and the extended end is rotatably connected to at least one balance wheel assembly.

5. The tow steering device according to claim 4, characterized in that: The balance wheel mounting bracket comprises a first balance wheel mounting bracket, the extending end of the first balance wheel mounting bracket is sequentially and spaced apart with two rotation connection hole positions along a second direction perpendicular to the first direction, each of which is used to rotationally connect one of the balance wheel assemblies, and the two balance wheel assemblies are arranged oppositely and symmetrically, the wire bundle outlet sides of the two balance wheel assemblies are arranged oppositely and spaced apart, the spaced position forms a first wire bundle outlet channel, and the wire bundle inlet sides of the two balance wheel assemblies are arranged outward; and / or The balance wheel mounting bracket includes at least two second balance wheel mounting brackets, and the extending end of the second balance wheel mounting bracket is provided with a rotating connection hole for rotatingly connecting to one of the balance wheel assemblies, wherein the two second balance wheel mounting brackets are arranged opposite to each other and at intervals, so that the wire bundle outlet sides of the two balance wheel assemblies are arranged opposite to each other and at intervals, and the interval position forms a second wire bundle outlet channel, and the wire bundle inlet sides of the two balance wheel assemblies are arranged outward.

6. The tow steering device according to claim 5, characterized in that: The balance wheel mounting bracket comprises a first balance wheel mounting bracket located at an upper middle position and two second balance wheel mounting brackets located at opposite sides below the first balance wheel mounting bracket and spaced from each other; The first wire bundle lead-out channel formed by the two balance wheel assemblies of the first balance wheel mounting bracket and the second wire bundle lead-out channels formed by the two balance wheel assemblies of the second balance wheel mounting brackets converge and overlap to form a common wire bundle lead-out channel.

7. The tow steering device according to claim 6, characterized in that: The rotation connection holes of the two second balance wheel mounting brackets are respectively fixedly connected to limit pins on opposite sides along the first direction, and the two limit pins are spaced apart from the rotation connection holes, and the upper and lower ends of the limit pins pass through the second balance wheel mounting bracket and extend upward and downward respectively, so as to limit the balance wheel assembly above the second balance wheel mounting bracket and the balance wheel assembly below the second balance wheel mounting bracket respectively.

8. The tow steering device according to claim 5 or 6, characterized in that: One side of the top connecting wall is arranged close to the tow outlet side of the balance wheel assembly; The lateral width of the top connecting wall is smaller than the lateral extension width of the blocking wall.

9. The tow steering device according to claim 4, characterized in that: The top connecting wall of the tow steering frame is rotationally connected to the balance wheel mounting bracket via a steering rotation connection assembly, wherein the steering rotation connection assembly comprises a steering bearing rotationally connected to the top connecting wall, a bearing spacer with a clearance fit with the steering bearing, and a bearing gasket located between the top of the steering bearing and the balance wheel mounting bracket, wherein the steering bearing and the bearing spacer form a rotating pair; and / or The mounting frame also includes a fixing frame, one end of which is fixedly connected to a side of the mounting plate away from the balance wheel mounting bracket, and the other end is used to be fixed on a yarn box frame of the automatic yarn placing machine.

10. An automatic wire laying machine, characterized in that: The fiber bundle steering device according to any one of claims 1 to 9 comprises a fiber laying machine frame and two groups of the fiber bundle steering devices arranged on opposite sides of the fiber laying machine frame.

Images