Heating wire conveying mechanism and wire placement machine

Abstract

The invention relates to a heating wire conveying mechanism and a wire placement machine, and the heating wire conveying mechanism comprises a servo motor, a heating wire traction seat, a heating wire up-and-down movement device and a heating wire left-and-right movement device; a heating wire can be placed on the heating wire traction seat; the servo motor is in transmission connection with the heating wire left-right movement device and the heating wire traction seat in sequence and can drive the heating wire traction seat to move in the left-right direction, so that the heating wires are laid on all positions of the surface of the base material; a main motor of the wire placement machine is sequentially in transmission connection with a heating wire up-and-down movement device and a heating wire traction base and can drive the heating wire traction base to move in the up-and-down direction, so that a winding mechanism can control yarn to wind and fix a heating wire on a base material. According to the invention, the laying and winding operation of the heating wire is more convenient and accurate, and the movement is more stable and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of wire laying equipment, and in particular to a heating wire conveying mechanism and a wire laying machine. Background Art

[0002] With the need for heating, physical therapy and health care, various heating household products such as electric blankets, hand warmers and heating pads have become popular. In the manufacturing process of these household products, the fiber laying machine lays and fixes the heating wires, such as carbon fiber heating wires and graphene heating wires, onto the substrate (such as non-woven fabric) by winding the yarn.

[0003] During the laying and winding process of the wire laying machine, a needle bar is usually used to transport the heating wire, that is, a plurality of fixed needles are installed on the needle bar to fix the plurality of heating wires, and then the movement of the needle bar is controlled to simultaneously transport the plurality of heating wires to the winding station, and the yarn is used to wind and fix them. Especially for substrates with a larger area, dozens or even hundreds of heating wires need to be arranged at the same time for synchronous laying and winding, and each heating wire needs to be precisely controlled, which undoubtedly increases the difficulty of control.

[0004] At the same time, when laying the heating wire on a large substrate, the required needle row is generally several meters long and needs to be moved frequently, which can easily lead to unstable operation and wear. Summary of the invention

[0005] The object of the present invention is to provide a heating wire conveying mechanism that is more convenient and precise to control, and runs more smoothly and reliably, and to provide a corresponding wire laying machine.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A heating wire conveying mechanism is applied to a wire laying machine, the wire laying machine comprises a frame and a main motor; the heating wire conveying mechanism is installed on the frame, and the main motor is drivingly connected to the heating wire conveying mechanism;

[0008] The frame is also equipped with a substrate conveying mechanism, a yarn conveying mechanism, and a winding mechanism which are respectively connected to the main motor by transmission;

[0009] The substrate conveying mechanism, the heating wire conveying mechanism, and the yarn conveying mechanism are respectively used to convey the substrate, the heating wire, and the yarn to the winding station of the winding mechanism, and the winding mechanism can control the yarn to wind the heating wire and fix it on the substrate;

[0010] The heating wire conveying mechanism comprises: a servo motor, a heating wire traction seat, a heating wire up and down movement device, and a heating wire left and right movement device; the heating wire traction seat can hold the heating wire;

[0011] The servo motor is sequentially connected to the left - right movement device of the heating wire and the traction seat of the heating wire in a driving manner, and can drive the traction seat of the heating wire to move in the left - right direction, so that the heating wire is laid on each position of the surface of the base material;

[0012] The main motor is sequentially connected to the up - down movement device of the heating wire and the traction seat of the heating wire in a driving manner, and can drive the traction seat of the heating wire to move in the up - down direction, so that the winding mechanism can control the yarn to wind and fix the heating wire on the base material.

[0013] Further, the left - right movement device of the heating wire includes: a left - right transmission component of the heating wire, a left - right movement guide rail of the heating wire;

[0014] The traction seat of the heating wire is movably installed on the left - right movement guide rail of the heating wire. The servo motor, the left - right transmission component of the heating wire, and the traction seat of the heating wire are sequentially connected in a driving manner, and can drive the traction seat of the heating wire to perform left - right reciprocating movement along the left - right movement guide rail of the heating wire.

[0015] Further, the traction seat of the heating wire has a heating wire conduit, and the heating wire conduit can supply the heating wire to pass through, so as to place the heating wire on the traction seat of the heating wire.

[0016] Further, the left - right transmission component of the heating wire includes a left - right transmission chain of the heating wire. The left - right transmission chain of the heating wire has a fixing column for the traction seat. The traction seat of the heating wire is fixedly installed on the fixing column for the traction seat. The left - right transmission chain of the heating wire reciprocates, and can drive the traction seat of the heating wire to perform left - right reciprocating movement along the left - right movement guide rail of the heating wire.

[0017] Further, the traction seat of the heating wire has a sleeve groove adapted to the fixing column for the traction seat, and the traction seat of the heating wire is sleeved on the fixing column for the traction seat through the sleeve groove.

[0018] Further, the up - down movement device of the heating wire includes a guide rail transmission rod and a cam transmission component. The main motor is sequentially connected to the cam transmission component, the guide rail transmission rod, and the left - right movement guide rail of the heating wire in a driving manner, and can drive the traction seat of the heating wire to move in the up - down direction.

[0019] Further, the up - down movement device of the heating wire further includes a commutation component. The commutation component includes a commutation rotating rod, a first commutation connecting rod, and a second commutation connecting rod; the commutation rotating rod is rotatably installed on the frame along the horizontal direction;

[0020] The cam drive assembly includes a cam and a cam drive rod. One end of the cam drive rod is in driving connection with the cam, and the other end of the cam drive rod is fixedly connected to the side surface of the reversing rod.

[0021] One end of the first reversing connecting rod is fixedly connected to the side surface of the reversing rod. The other end of the first reversing connecting rod is hinged to one end of the second reversing connecting rod, and the other end of the second reversing connecting rod is hinged to the guide rail drive rod.

[0022] The guide rail drive rod is movably mounted on the frame in the up and down direction.

[0023] Further, the cam drive assembly further includes an auxiliary wheel. The cam is in driving connection with the main motor. The auxiliary wheel 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.

[0024] Further, a driving main shaft is further provided on the frame. The main motor is in driving connection with the driving main shaft, and a first driving sprocket is coaxially mounted on the driving main shaft.

[0025] The heating wire up and down movement device further includes a heating wire up and down movement drive rod and a second driving sprocket. The cam and the second driving sprocket are coaxially mounted on the heating wire up and down movement drive rod, and the first driving sprocket is in driving connection with the second driving sprocket through a synchronous chain.

[0026] A wire laying machine provided by the present invention correspondingly has a heating wire conveying mechanism of any of the above solutions.

[0027] Beneficial effects: Different from the mode of using a needle row to convey the heating wire, the heating wire conveying mechanism of the present invention uses a servo motor, a heating wire traction seat, a heating wire up and down movement device and a heating wire left and right movement device to convey the heating wire. Among them, the servo motor is successively in driving connection with the heating wire left and right movement device and the heating wire traction seat, and can drive the heating wire traction seat to move in the left and right direction, so that the heating wire is laid on each position on the surface of the base material. The main motor is successively in driving connection with the heating wire up and down movement device and the heating wire traction seat, and can drive the heating wire traction seat to move in the up and down direction, so that the winding mechanism can control the yarn to wind and fix the heating wire on the base material. Therefore, only one heating wire needs to be placed on the heating wire traction seat, and through reciprocating movement in the left and right direction, the heating wire can be laid on each position of the base material, and it is not necessary to control multiple heating wires at the same time. Thus, the operation is more convenient and accurate; and the heating wire traction seat can be designed in a miniaturized manner, and its operation control is more stable and reliable compared with a needle row several meters long. Description of the Drawings

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0029] Figure 1 is a schematic diagram of the overall structure of a fiber placement machine, which adopts the heating wire conveying mechanism provided by the embodiment.

[0030] Figure 2 is Figure 1 one of the schematic diagrams of the structure of the fiber placement machine lacking the control boxes on the left and right sides.

[0031] Figure 3 is Figure 1 the second schematic diagram of the structure of the fiber placement machine lacking the control boxes on the left and right sides.

[0032] Figure 4 is Figure 1 one of the schematic diagrams of the cross-sectional structure of the fiber placement machine.

[0033] Figure 5 is Figure 4 the enlarged schematic diagram at position A in

[0034] Figure 6 is Figure 1 the second schematic diagram of the cross-sectional structure of the fiber placement machine.

[0035] Figure 7 is Figure 1 one of the partial schematic diagrams of the heating wire conveying mechanism in the fiber placement machine.

[0036] Figure 8 is Figure 1 the second partial schematic diagram of the heating wire conveying mechanism in the fiber placement machine.

[0037] Figure 9 is Figure 1 the winding finished product schematic diagram of the fiber placement machine.

[0038] Reference numerals in the drawings: 30 - heating wire, 40 - base material, 50 - yarn, 61 - first conductive wire, 62 - second conductive wire.

[0039] 1000 - frame, 1100 - driving main shaft, 1110 - first transmission sprocket, main motor - 2000.

[0040] 3000 - heating wire conveying mechanism, 3100 - servo motor, 3200 - heating wire traction seat, 3201 - heating wire conduit, 3202 - sleeve slot.

[0041] 3300 - Heating wire up - and - down movement device, 3310 - Guide rail drive rod, 3320 - Cam drive assembly, 3321 - Cam, 3322 - Auxiliary wheel, 3323 - Cam drive rod, 3330 - Reversing assembly, 3331 - Reversing rotating rod, 3332 - First reversing connecting rod, 3333 - Second reversing connecting rod.

[0042] 3340 - Heating wire up - and - down movement drive rod, 3350 - Second drive sprocket, 3360 - Synchronous chain, 3400 - Heating wire left - and - right movement device, 3410 - Heating wire left - and - right drive assembly, 3411 - Heating wire left - and - right drive chain, 3412 - Traction seat fixing column, 3420 - Heating wire left - and - right movement guide rail.

[0043] 4000 - Substrate conveying mechanism, 5000 - Yarn conveying mechanism, 6000 - Conductive wire conveying mechanism, 6100 - First row of conductive wire needles, 6200 - Second row of conductive wire needles, 7000 - Winding mechanism. Detailed implementation manners

[0044] In order to make the invention purpose, features, and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0045] In the description of this application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "side", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this application.

[0046] Unless otherwise clearly specified and limited, the terms "connected", "fixed", "set" 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, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0047] In addition, 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 quantity of the indicated technical features. Thus, features defined with "first", "second", and "third" may explicitly or implicitly include one or more of such features, unless otherwise specifically defined.

[0048] Please refer to Figures 1 to 9 , a heating wire conveying mechanism 3000 provided in this embodiment can be applied to a filament laying machine, which includes a frame 1000 and a main motor 2000; the heating wire conveying mechanism 3000 is installed on the frame 1000, and the main motor 2000 is in transmission connection with the heating wire conveying mechanism 3000.

[0049] A base material conveying mechanism 4000, a yarn conveying mechanism 5000, and a winding mechanism 7000, which are respectively in transmission connection with the main motor 2000, are also installed on the frame 1000.

[0050] The base material conveying mechanism 4000, the heating wire conveying mechanism 3000, and the yarn conveying mechanism 5000 are respectively used to convey the base material, the heating wire, and the yarn to the winding station of the winding mechanism 7000, and the winding mechanism 7000 can control the yarn to wind and fix the heating wire on the base material.

[0051] The base material in this embodiment can specifically be non-woven fabric, PVC film, cloth film, or mesh film, etc., and the heating wire can specifically be carbon fiber or graphene, etc.

[0052] The heating wire conveying mechanism 3000 includes: a servo motor 3100, a heating wire traction seat 3200, a heating wire vertical movement device 3300, and a heating wire horizontal movement device 3400; the heating wire traction seat 3200 can hold and place the heating wire.

[0053] The servo motor 3100 is in transmission connection with the heating wire horizontal movement device 3400 and the heating wire traction seat 3200 in sequence, and can drive the heating wire traction seat 3200 to move in the horizontal direction, so that the heating wire is laid on various positions on the surface of the base material.

[0054] The main motor 2000 is in transmission connection with the heating wire vertical movement device 3300 and the heating wire traction seat 3200 in sequence, and can drive the heating wire traction seat 3200 to move in the vertical direction, so that the winding mechanism 7000 can control the yarn to wind and fix the heating wire on the base material, as Figure 9 shown.

[0055] Please refer to Figure 5 and Figure 9, as an alternative, a conductive wire conveying mechanism 6000 is also installed on the frame 1000 of the fiber placement machine, which is drivingly connected to the main motor 2000. It has a first conductive wire needle row 6100 and a second conductive wire needle row 6200 for cross-conveying the first conductive wire 61 and the second conductive wire 62 to the corresponding winding stations of the winding mechanism 7000 respectively. The winding mechanism 7000 can control another group of yarns to wind and fix the first conductive wire 61 and the second conductive wire 62, and the heating wire 30 is clamped between the first conductive wire 61 and the second conductive wire 62, so that the first conductive wire 61 and the second conductive wire 62 form a stable and reliable circuit connection with the heating wire 30, as Figure 9 shown.

[0056] The specific winding process can be referred to as follows: after the substrate conveying mechanism 4000 conveys the substrate 40 to the winding station of the winding mechanism 7000, the crochet needles for winding the heating wire and the crochet needles for winding the conductive wire on the winding mechanism 7000 pierce the substrate 40 at the same time. At the same time, the heating wire conveying mechanism 3000 conveys the heating wire 30 to the heating wire winding station, and the conductive wire conveying mechanism 6000 conveys the conductive wire to the conductive wire winding station. The yarn conveying mechanism 5000 makes an up-and-down flip and a left-and-right movement to wind the two groups of yarns around the crochet needles for winding the heating wire and the crochet needles for winding the conductive wire respectively. After the two groups of crochet needles are reset, the corresponding yarns are hooked to the back of the substrate. Repeating this process, the two groups of yarns fix the heating wire 30 and the conductive wire to the substrate 40 in a winding manner.

[0057] The heating wire conveying mechanism of this embodiment is different from the mode of conveying the heating wire by using a needle row. It uses a servo motor 3100, a heating wire traction seat 3200, a heating wire up-and-down movement device 3300 and a heating wire left-and-right movement device 3400 to convey the heating wire. Among them, the servo motor 3100 is drivingly connected to the heating wire left-and-right movement device 3400 and the heating wire traction seat 3200 in sequence, and can drive the heating wire traction seat 3200 to move in the left-and-right direction, so that the heating wire is laid on each position of the surface of the substrate. The main motor 2000 is drivingly connected to the heating wire up-and-down movement device 3300 and the heating wire traction seat 3200 in sequence, and can drive the heating wire traction seat 3200 to move in the up-and-down direction, so that the winding mechanism 7000 can control the yarn 50 to wind and fix the heating wire 30 on the substrate. Therefore, only one heating wire needs to be placed on the heating wire traction seat 3200, and through the left-and-right reciprocating movement, the heating wire can be laid on each position of the substrate, without the need to control multiple heating wires at the same time. Thus, the operation is more convenient and accurate; and the heating wire traction seat 3200 can be designed in a small size, and its operation control is more stable and reliable compared with the needle row several meters long.

[0058] Please refer to Figure 7 and Figure 8The heating wire left-right movement device 3400 includes: a heating wire left-right transmission assembly 3410 and a heating wire left-right movement guide rail 3420 .

[0059] The heating wire traction seat 3200 is movably installed on the heating wire left and right motion guide rails 3420. The servo motor 3100, the heating wire left and right transmission assembly 3410, and the heating wire traction seat 3200 are sequentially connected in transmission, which can drive the heating wire traction seat 3200 to reciprocate left and right along the heating wire left and right motion guide rails 3420.

[0060] Furthermore, the heating wire pulling seat 3200 has a heating wire conduit 3201 , and the heating wire conduit 3201 can allow the heating wire to pass through so as to place the heating wire on the heating wire pulling seat 3200 .

[0061] Furthermore, the left and right transmission assembly 3410 of the heating wire includes a left and right transmission chain 3411 of the heating wire, and the left and right transmission chain 3411 of the heating wire has a traction seat fixing column 3412, and the heating wire traction seat 3200 is fixedly installed on the traction seat fixing column 3412. The left and right transmission chain 3411 of the heating wire reciprocates, and can drive the heating wire traction seat 3200 to reciprocate left and right along the left and right movement guide rails 3420 of the heating wire.

[0062] Furthermore, the heating wire traction seat 3200 has a sleeve groove 3202 adapted to the traction seat fixing column 3412 , and the heating wire traction seat 3200 is installed on the traction seat fixing column 3412 through the sleeve groove 3202 .

[0063] Furthermore, the heating wire up and down movement device 3300 includes a guide rail transmission rod 3310 and a cam transmission assembly 3320. The main motor 2000 is sequentially connected to the cam transmission assembly 3320, the guide rail transmission rod 3310, and the heating wire left and right movement guide rail 3420, which can drive the heating wire traction seat 3200 to move in the up and down directions.

[0064] Furthermore, the heating wire up and down movement device also includes a reversing assembly 3330, and the reversing assembly 3330 includes a reversing rotating rod 3331, a first reversing connecting rod 3332 and a second reversing connecting rod 3333; the reversing rotating rod 3331 is rotatably installed on the frame 1000 along the horizontal direction.

[0065] The cam transmission assembly 3320 includes a cam 3321 and a cam transmission rod 3323, one end of the cam transmission rod 3323 is transmission-connected to the cam 3321, and the other end of the cam transmission rod 3323 is fixedly connected to the side of the reversing rod 3331. The cam 3321 can perform eccentric motion, so it can push the cam transmission rod 3323, and can also pull the cam transmission rod back, and its maximum push-pull stroke will depend on the shape or eccentricity of the cam.

[0066] In this embodiment, the cam drive assembly 3320 further includes an auxiliary wheel 3322. The cam 3321 is drivingly connected to the main motor 2000. The auxiliary wheel 3322 is rotatably mounted on the cam drive rod 3323, and the outer peripheral surface of the cam 3321 abuts against the outer peripheral surface of the auxiliary wheel 3322. The shape or eccentricity of the cam 3321 determines the maximum stroke of the cam drive rod 3323 being pushed or pulled. Of course, if the auxiliary wheel 3322 also adopts a cam design, the shape or its eccentricity of the auxiliary wheel 3322 will also affect the maximum stroke of the cam drive rod 3323 being pushed or pulled.

[0067] After the cam drive rod 3323 is pushed or pulled, it is converted into the rotation of the commutation rod 3331.

[0068] One end of the first commutation link 3332 is fixedly connected to the side surface of the commutation rod 3331. The other end of the first commutation link 3332 is hinged to one end of the second commutation link 3333, and the other end of the second commutation link 3333 is hinged to the guide rail drive rod 3310.

[0069] The guide rail drive rod 3310 is movably mounted on the frame 1000 in the up and down direction. Therefore, the first commutation link 3332 and the second commutation link 3333 can convert the rotation of the commutation rod 3331 into the up and down pushing and pulling movement of the guide rail drive rod 3310, so that the guide rail drive rod 3310 drives the heating wire to move left and right, and the guide rail 3420 and the heating wire traction seat 3200 move in the up and down direction.

[0070] Furthermore, a driving main shaft 1100 is further provided on the frame 1000. The main motor 2000 is drivingly connected to the driving main shaft 1100. A first transmission sprocket 1110 is coaxially mounted on the driving main shaft 1100. Refer to Figure 3 .

[0071] Continue to refer to Figure 7 or Figure 8 , the heating wire up and down movement device 3300 further includes a heating wire up and down movement drive rod 3340 and a second transmission sprocket 3350. The cam 3321 and the second transmission sprocket 3350 are coaxially mounted on the heating wire up and down movement drive rod 3340. The first transmission sprocket 1110 and the second transmission sprocket 3350 are drivingly connected by a synchronous chain 3360.

[0072] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A heating wire conveying mechanism, applied to a wire laying machine, the wire laying machine comprising a frame and a main motor; the heating wire conveying mechanism is mounted on the frame, and the main motor is drivingly connected to the heating wire conveying mechanism; The frame is also equipped with a substrate conveying mechanism, a yarn conveying mechanism, and a winding mechanism which are respectively connected to the main motor by transmission; The substrate conveying mechanism, the heating wire conveying mechanism, and the yarn conveying mechanism are respectively used to convey the substrate, the heating wire, and the yarn to the winding station of the winding mechanism, and the winding mechanism can control the yarn to wind the heating wire and fix it on the substrate; it is characterized in that: The heating wire conveying mechanism comprises: a servo motor, a heating wire traction seat, a heating wire up and down movement device, and a heating wire left and right movement device; the heating wire traction seat can hold the heating wire; The servo motor is sequentially connected to the heating wire left-right moving device and the heating wire traction seat, and can drive the heating wire traction seat to move in the left-right direction, so that the heating wire is laid on various positions on the surface of the substrate; The main motor is sequentially connected to the heating wire up and down movement device and the heating wire traction seat, and can drive the heating wire traction seat to move in the up and down directions, so that the winding mechanism can control the yarn to wind the heating wire and fix it on the substrate.

2. The heating wire conveying mechanism according to claim 1, wherein The heating wire left-right movement device comprises: a heating wire left-right transmission assembly and a heating wire left-right movement guide rail; The heating wire traction seat is movably installed on the left and right movement guide rails of the heating wire. The servo motor, the left and right transmission components of the heating wire, and the heating wire traction seat are sequentially connected in transmission, and can drive the heating wire traction seat to reciprocate left and right along the left and right movement guide rails of the heating wire.

3. The heating wire conveying mechanism according to claim 1, wherein The heating wire traction seat has a heating wire conduit, and the heating wire conduit can allow the heating wire to pass through, so that the heating wire is installed on the heating wire traction seat.

4. The heating wire conveying mechanism according to claim 2, wherein, The left and right transmission components of the heating wire include left and right transmission chains of the heating wire, and the left and right transmission chains of the heating wire have a traction seat fixing column, and the heating wire traction seat is fixedly installed on the traction seat fixing column. The left and right transmission chains of the heating wire reciprocate to drive the heating wire traction seat to reciprocate left and right along the left and right movement guide rails of the heating wire.

5. The heating wire conveying mechanism according to claim 3, characterized in that, The heating wire traction seat has a sleeve groove adapted to the traction seat fixing column, and the heating wire traction seat is sleeved on the traction seat fixing column through the sleeve groove.

6. The heating wire conveying mechanism according to any one of claims 2 to 5, characterized in that, The heating wire up and down movement device includes a guide rail transmission rod and a cam transmission assembly. The main motor is sequentially connected to the cam transmission assembly, the guide rail transmission rod, and the heating wire left and right movement guide rail, which can drive the heating wire traction seat to move in the up and down directions.

7. The heating wire conveying mechanism according to claim 6, characterized in that, The heating wire up and down movement device also includes a reversing assembly, which includes a reversing rotating rod, a first reversing connecting rod and a second reversing connecting rod; the reversing rotating rod is rotatably mounted on the frame along a horizontal direction; The cam transmission assembly includes a cam and a cam transmission rod, one end of the cam transmission rod is transmission-connected to the cam, and the other end of the cam transmission rod is fixedly connected to the side surface of the reversing rotating rod; One end of the first reversing link is fixedly connected to the side surface of the reversing rotating rod, the other end of the first reversing link is hinged to one end of the second reversing link, and the other end of the second reversing link is hinged to the guide rail transmission rod; The guide rail transmission rod is movably mounted on the frame in the up and down direction.

8. The heating wire conveying mechanism according to claim 7, characterized in that, The cam transmission assembly further includes an auxiliary wheel. The cam is in transmission connection with the main motor. The auxiliary wheel is mounted on the cam transmission rod, and the outer peripheral surface of the cam abuts against the outer peripheral surface of the auxiliary wheel.

9. The heating wire conveying mechanism according to claim 8, wherein, A driving main shaft is further provided on the frame. The main motor is in transmission connection with the driving main shaft, and a first transmission sprocket is coaxially mounted on the driving main shaft; The heating wire up and down movement device further includes a heating wire up and down movement transmission rod and a second transmission sprocket. The cam and the second transmission sprocket are coaxially mounted on the heating wire up and down movement transmission rod, and the first transmission sprocket is in transmission connection with the second transmission sprocket through a synchronous chain.

10. A fiber placement machine, characterized in that, It has the heating wire conveying mechanism according to any one of claims 1-9.

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