Fiber placement control mechanism and fiber placement machine

Abstract

The utility model relates to a wire placement control mechanism and a wire placement machine, the wire placement control mechanism comprises a positioning rod and a positioning transmission device, the positioning transmission device is installed on a rack and is in transmission connection with a first end of the positioning rod, and a second end of the positioning rod corresponds to an endpoint position of a wire tractor moving along a second direction; when the wire tractor moves to the end point position, the positioning transmission device can transmit the positioning rod, so that the second end of the positioning rod gets close to or away from the surface of the base material, and the wire dragged by the wire tractor is correspondingly hooked or released. According to the utility model, the wires can be laid on the base material at intervals, so that the wires can be laid and wound more uniformly.

Description

Technical Field

[0001] This utility model relates to the technical field of filament placement equipment, specifically to a filament placement control mechanism and a filament placement machine. Background Technology

[0002] With the growing demand for heating, physiotherapy, and health care, various heating products such as electric blankets, hand warmers, and heating pads have become quite common. During the manufacturing process, a yarn-laying machine uses yarn to lay and fix heating wires, such as carbon fiber or graphene heating wires, onto a substrate (such as non-woven fabric) through a winding process. The laying of the heating wires on the substrate must be ensured to be uniform; otherwise, uneven heating will occur throughout the product.

[0003] For laying the heating wire, a relatively long heating wire can be used. By controlling the reciprocating movement of this heating wire in one direction (such as up and down or left and right), the heating wire can be laid at various positions on the substrate. Furthermore, the distribution of the heating wire in the central area of ​​the substrate is often relatively uniform.

[0004] However, in the more peripheral areas of the substrate, the distribution of heating wires is often not uniform. Specifically, during the laying of the heating wires, when the heating wires move to one end and then turn back towards the other end, an acute angle is easily formed at the transition point of the "turn," such as... Figure 1 As shown, because the two sides (i.e. the two heating wires) of the "acute angle" are relatively close, the temperature at that point is too concentrated and significantly higher than that in the middle area of ​​the substrate, resulting in uneven heating of the product. Utility Model Content

[0005] The purpose of this invention is to provide a wire laying control mechanism that enables more uniform wire laying, and correspondingly, a wire laying machine.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A yarn placement control mechanism is applied to a yarn placement machine, the yarn placement machine including a frame, on which a substrate conveying mechanism, a yarn conveying mechanism, a yarn conveying mechanism, and a winding mechanism are mounted;

[0008] The substrate conveying mechanism can convey the substrate to the winding station along the first direction;

[0009] The filament conveying mechanism includes a filament traction device, which is capable of reciprocating along a second direction on the surface of the substrate at the winding station to pull the filament to be reciprocated and laid on the substrate along the second direction; the second direction is perpendicular to the first direction.

[0010] The yarn conveying mechanism can convey the yarn to the winding station and, in conjunction with the winding mechanism, control the yarn to wind and fix the filaments laid on the substrate.

[0011] The filament placement control mechanism includes a positioning rod and a positioning transmission device. The positioning transmission device is mounted on the frame and is connected to the first end of the positioning rod. The second end of the positioning rod corresponds to the endpoint position of the filament traction device moving along the second direction. When the filament traction device moves to the endpoint position, the positioning transmission device can drive the positioning rod so that the second end of the positioning rod moves closer to or further away from the substrate surface, so as to hook or release the filament pulled by the filament traction device accordingly.

[0012] Furthermore, the positioning transmission device includes: a cam transmission assembly and a positioning transmission rod, the first end of the positioning rod being fixed on the positioning transmission rod, and the cam transmission assembly, the positioning transmission rod, and the positioning rod being sequentially connected in a transmission manner.

[0013] Furthermore, the positioning transmission rod is rotatably mounted on the frame in a horizontal direction, and the second end of the positioning rod is bent towards the surface of the substrate relative to the first end of the positioning rod. The cam transmission assembly can drive the positioning transmission rod to rotate, so that the second end of the positioning rod moves closer to or further away from the surface of the substrate.

[0014] Furthermore, the cam transmission assembly includes a cam and a cam transmission rod, with a first end of the cam transmission rod being connected to the cam transmission rod and a second end of the cam transmission rod being connected to the positioning transmission rod to drive the positioning transmission rod to rotate.

[0015] Furthermore, the cam drive assembly also includes an auxiliary wheel, which is mounted on the cam drive rod, and the outer peripheral surface of the cam abuts against the outer peripheral surface of the auxiliary wheel.

[0016] Furthermore, the positioning transmission device also includes: a reversing assembly, which includes a reversing rod, a first fixed rod, a reversing connecting rod, and a second fixed rod; the reversing rod is rotatably mounted on the frame in the horizontal direction;

[0017] The second end of the cam drive rod is fixedly connected to the side of the reversing rod; the first end of the first fixed rod is fixedly connected to the side of the reversing rod, the second end of the first fixed rod is hinged to the first end of the reversing link, the second end of the reversing link is hinged to the first end of the second fixed rod, and the second end of the second fixed rod is fixedly connected to the side of the positioning drive rod.

[0018] Furthermore, the filament laying control mechanism includes two positioning rods, the installation positions of which correspond to the starting position and the ending position of the filament traction device moving along the second direction, respectively.

[0019] Furthermore, the filament is a heating wire.

[0020] Furthermore, the positioning rod is L-shaped.

[0021] Accordingly, the present invention provides a filament placement machine having a filament placement control mechanism according to any of the above-mentioned schemes.

[0022] Beneficial effects: The filament laying control mechanism of this utility model will not form an acute angle at the transition point of the filament laying "turn", but will achieve a "vertical" transition between the second direction and the first direction, so that the filament is truly laid at equal intervals on the substrate, and the filament laying is more uniform. Attached Figure Description

[0023] 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.

[0024] Figure 1 This is a schematic diagram of the finished product from an existing filament placement machine, which has the problem of uneven filament placement.

[0025] Figure 2 This is a schematic diagram of the overall structure of a filament placement machine that applies the filament placement control mechanism provided in the embodiment.

[0026] Figure 3 yes Figure 2 One of the structural diagrams of the filament laying machine that lacks the left and right control boxes is shown.

[0027] Figure 4 yes Figure 2 A schematic diagram of a cross-sectional structure of a wire laying machine.

[0028] Figure 5 yes Figure 2 A schematic diagram of another cross-sectional structure of the filament placing machine.

[0029] Figure 6 yes Figure 2 A partial structural diagram of the wire laying control mechanism.

[0030] Figure 7 yes Figure 2 A schematic diagram of the finished product from the filament laying machine.

[0031] In the diagram: 30 - substrate, 40 - filament, 50 - yarn.

[0032] 1000-Silk layup control mechanism, 1100-Positioning rod, 1200-Positioning transmission device, 1210-Cam transmission assembly, 1211-Cam, 1212-Cam transmission rod, 1213-Auxiliary wheel, 1220-Positioning transmission rod, 1231-Reversing rod, 1232-First fixed rod, 1233-Reversing connecting rod, 1234-Second fixed rod.

[0033] 2000 - Frame, 3000 - Substrate conveying mechanism, 4000 - filament conveying mechanism, 4100 - filament traction device; 5000 - Yarn conveying mechanism, 6000 - Winding mechanism. Detailed Implementation

[0034] To make the invention's objectives, features, and advantages more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0035] In the description of this application, it should be noted that the terms "upper", "lower", "front", "rear", "side", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0036] Unless otherwise expressly specified and limited, the terms "connection," "fixed," and "set" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature, unless otherwise expressly specified.

[0038] Please refer to the following: Figures 2 to 7 This embodiment provides a filament placement control mechanism 1000, which is applied to a filament placement machine. The filament placement machine includes a frame 2000, on which a substrate conveying mechanism 3000, a filament conveying mechanism 4000, a yarn conveying mechanism 5000, and a winding mechanism 6000 are installed.

[0039] The substrate conveying mechanism 3000 can convey the substrate 30 to the winding station along a first direction. In this embodiment, the first direction refers to the up-down direction; in other embodiments, the first direction can be set as needed.

[0040] The filament conveying mechanism 4000 includes a filament traction device 4100, which is capable of reciprocating along a second direction on the surface of the substrate 30 at the winding station to pull the filament 40 to be reciprocated and laid on the substrate 30 along the second direction; the second direction is perpendicular to the first direction.

[0041] In this embodiment, the second direction refers to the left-right direction. In other embodiments, the second direction can be set as needed. The filament 40 in this embodiment refers to the heating wire, meaning that the filament laying control of the heating wire in this embodiment is more effective. Of course, in other embodiments, it can also be a filament for other purposes.

[0042] The yarn conveying mechanism 5000 can convey the yarn 50 to the winding station and, in conjunction with the winding mechanism 6000, control the yarn 50 to wind and fix the filament 40 laid on the substrate 30.

[0043] The filament laying control mechanism 1000 includes a positioning rod 1100 and a positioning transmission device 1200. The positioning transmission device 1200 is mounted on the frame 2000 and is connected to the first end of the positioning rod 1100. The second end of the positioning rod 1100 corresponds to the end position of the filament traction device 4100 moving in the second direction. When the filament traction device 4100 moves to the end position, the positioning transmission device 1200 can drive the positioning rod 1100 so that the second end of the positioning rod 1100 moves closer to or further away from the surface of the substrate 30, so as to hook or release the filament 40 pulled by the filament traction device 4100 accordingly.

[0044] For reference, in this embodiment, the positioning rod is L-shaped. It is understood that in other embodiments, the positioning rod may also be other shapes.

[0045] like Figure 5 and Figure 6 As shown, the positioning transmission device 1200 includes: a cam transmission assembly 1210 and a positioning transmission rod 1220. The first end of the positioning rod 1100 is fixed on the positioning transmission rod 1220. The cam transmission assembly 1210, the positioning transmission rod 1220, and the positioning rod 1100 are sequentially connected in a transmission manner.

[0046] Furthermore, the positioning transmission rod 1220 is rotatably mounted on the frame 2000 in the horizontal direction. The second end of the positioning rod 1100 is bent towards the surface of the substrate 30 relative to the first end of the positioning rod 1100. The cam transmission assembly 1210 can drive the positioning transmission rod 1220 to rotate, so that the second end of the positioning rod 1100 moves closer to or further away from the surface of the substrate 30.

[0047] Furthermore, the cam transmission assembly 1210 includes a cam 1211 and a cam transmission rod 1212. The first end of the cam transmission rod 1212 is connected to the cam 1211, and the second end of the cam transmission rod 1212 is connected to the positioning transmission rod 1220 to drive the positioning transmission rod 1220 to rotate.

[0048] Furthermore, the cam drive assembly 1210 also includes an auxiliary wheel 1213, which is mounted on the cam drive rod 1212, and the outer peripheral surface of the cam 1211 abuts against the outer peripheral surface of the auxiliary wheel 1213.

[0049] Furthermore, the positioning transmission device 1200 also includes a reversing assembly, which includes a reversing rod 1231, a first fixed rod 1232, a reversing connecting rod 1233, and a second fixed rod 1234; the reversing rod 1231 is rotatably mounted on the frame 2000 in the horizontal direction.

[0050] The second end of the cam drive rod 1212 is fixedly connected to the side of the reversing rod 1231; the first end of the first fixed rod 1232 is fixedly connected to the side of the reversing rod 1231, the second end of the first fixed rod 1232 is hinged to the first end of the reversing connecting rod 1233, the second end of the reversing connecting rod 1233 is hinged to the first end of the second fixed rod 1234, and the second end of the second fixed rod 1234 is fixedly connected to the side of the positioning drive rod 1220.

[0051] In this embodiment, the filament laying control mechanism 1000 includes two positioning rods 1100. The installation positions of the two positioning rods 1100 correspond to the starting position and the ending position of the filament traction device 4100 moving along the second direction, respectively.

[0052] The main working process of the fiber placement control mechanism in this embodiment is as follows:

[0053] (1) The substrate conveying mechanism 3000 conveys the substrate 30 to the winding station in a stepping manner from top to bottom.

[0054] (2) The wire traction device 4100 of the wire conveying mechanism 4000 pulls the wire 40 along the direction from right to left and lays it on the substrate 30.

[0055] (3) When the wire traction device 4100 moves from right to left to a position close to the first end point, the positioning transmission device 1200 drives the positioning rod 1100 to move the second end of the positioning rod 1100 away from the surface of the substrate 30, that is, to avoid the movement trajectory of the wire 40, so that the wire 40 pulled by the wire traction device 4100 can be laid to the first end point position.

[0056] (4) When the wire traction device 4100 turns back from the first end position, that is, moves from left to right and passes the position corresponding to the second end of the positioning rod 1100, the positioning transmission device 1200 drives the positioning rod 1100 so that the second end of the positioning rod 1100 approaches the surface of the substrate 30, that is, blocks the movement trajectory of the wire 40, so that the wire 40 on the wire traction device 4100 is hooked by the second end of the positioning rod 1100.

[0057] (5) The yarn conveying mechanism 5000 conveys the yarn 50 to the winding station and, in conjunction with the winding mechanism 6000, controls the yarn 50 to wind and fix the filament 40 at the first end position (i.e. the filament position hooked by the positioning rod 1100) onto the surface of the substrate 30; the filament traction device 4100 continues to move forward to the right.

[0058] (6) The substrate conveying mechanism 3000 continues to convey the substrate 30 from top to bottom, that is, the substrate 30 continues to step down a preset distance. Since the wire 40 at the first end position has been fixed with the substrate 30, it is pulled in the direction of the substrate 30's movement (i.e. downward direction) during the stepping process of the substrate 30.

[0059] (7) A section of filament 40 located after the first end position (the length is approximately equal to the step distance when the substrate is conveyed) is pulled downward by the substrate 30 on the one hand and pulled to the right by the filament traction device 4000 on the other hand. However, it cannot tilt to the right due to the obstruction of the positioning rod 1100. This section of filament 40 can only be laid from the first end position to the second end position in the direction from bottom to top (the distance between the two is approximately equal to the step distance of the substrate). That is, the filament 40 changes from being laid from right to left to being laid from bottom to top.

[0060] (7) The yarn conveying mechanism 5000 conveys the yarn 50 to the winding station again, and cooperates with the winding mechanism 6000 to control the yarn 50 to wind and fix the filament 40 at the second end position onto the surface of the substrate 30.

[0061] (8) The positioning transmission device 1200 continues to drive the positioning rod 1100, so that the second end of the positioning rod 1100 is away from the surface of the substrate 30, that is, away from the movement trajectory of the wire 40 (at the same time, the wire 40 hooked by the positioning rod 1100 is released). The wire 40 after the second end position will continue to be laid in the right direction due to the rightward pulling force of the wire traction device 4100. That is, the wire 40 is changed from being laid from bottom to top to being laid from left to right.

[0062] Therefore, in this embodiment, at the transition point where the filament laying "turns," no "acute angle" is formed, but rather a "perpendicular" transition is achieved from the second direction to the first direction and from the first direction to the second direction. This allows the filament 40 to be truly laid at equal intervals on the substrate 30, resulting in a more uniform winding of the filament 40. The effect is as follows: Figure 7 As shown.

[0063] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fiber placement control mechanism, applied to a fiber placement machine, characterized in that, The filament laying machine includes a frame, on which a substrate conveying mechanism, a filament conveying mechanism, a yarn conveying mechanism, and a winding mechanism are mounted; The substrate conveying mechanism can convey the substrate to the winding station along the first direction; The filament conveying mechanism includes a filament traction device, which is capable of reciprocating along a second direction on the surface of the substrate at the winding station to pull the filament to be reciprocated and laid on the substrate along the second direction; the second direction is perpendicular to the first direction. The yarn conveying mechanism can convey the yarn to the winding station and, in conjunction with the winding mechanism, control the yarn to wind and fix the filaments laid on the substrate. The filament placement control mechanism includes a positioning rod and a positioning transmission device. The positioning transmission device is mounted on the frame and is connected to the first end of the positioning rod. The second end of the positioning rod corresponds to the endpoint position of the filament traction device moving along the second direction. When the filament traction device moves to the endpoint position, the positioning transmission device can drive the positioning rod so that the second end of the positioning rod moves closer to or further away from the substrate surface, so as to hook or release the filament pulled by the filament traction device accordingly.

2. The fiber placement control mechanism according to claim 1, characterized in that, The positioning transmission device includes a cam transmission assembly and a positioning transmission rod. The first end of the positioning rod is fixed on the positioning transmission rod, and the cam transmission assembly, the positioning transmission rod, and the positioning rod are sequentially connected in a transmission manner.

3. The fiber placement control mechanism according to claim 2, characterized in that, The positioning transmission rod is rotatably mounted on the frame in a horizontal direction. The second end of the positioning rod is bent towards the surface of the substrate relative to the first end of the positioning rod. The cam transmission assembly can drive the positioning transmission rod to rotate, so that the second end of the positioning rod moves closer to or further away from the surface of the substrate.

4. The fiber placement control mechanism according to claim 3, characterized in that, The cam drive assembly includes a cam and a cam drive rod. The first end of the cam drive rod is driven to the cam, and the second end of the cam drive rod is driven to the positioning drive rod to drive the positioning drive rod to rotate.

5. The fiber placement control mechanism according to claim 4, characterized in that, The cam drive assembly also includes an auxiliary wheel, which is mounted on the cam drive rod, and the outer peripheral surface of the cam abuts against the outer peripheral surface of the auxiliary wheel.

6. The fiber placement control mechanism according to claim 5, characterized in that, The positioning transmission device further includes: a reversing assembly, which includes a reversing rod, a first fixed rod, a reversing connecting rod, and a second fixed rod; the reversing rod is rotatably mounted on the frame in a horizontal direction. The second end of the cam drive rod is fixedly connected to the side of the reversing rod; the first end of the first fixed rod is fixedly connected to the side of the reversing rod, the second end of the first fixed rod is hinged to the first end of the reversing link, the second end of the reversing link is hinged to the first end of the second fixed rod, and the second end of the second fixed rod is fixedly connected to the side of the positioning drive rod.

7. The fiber placement control mechanism according to any one of claims 1 to 6, characterized in that, The filament laying control mechanism includes two positioning rods, the installation positions of which correspond to the starting position and the ending position of the filament traction device moving along the second direction, respectively.

8. The fiber placement control mechanism according to claim 7, characterized in that, The wire is a heating wire.

9. The fiber placement control mechanism according to claim 7, characterized in that, The positioning rod is L-shaped.

10. A fiber placement machine, characterized in that, It has a fiber placement control mechanism as described in any one of claims 1-9.

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