Symmetrical winding cross-weaving mechanism

Abstract

The utility model provides a symmetrical winding cross-weaving mechanism which comprises a conveying assembly used for conveying weft-direction rib materials, a cutting assembly used for cutting off the weft-direction rib materials, a cross-weaving assembly used for twisting warp-direction wire materials and a traction machine, and the cross-weaving assembly comprises a plurality of driven wheels and driving wheels which are meshed with one another. Two wire holes are symmetrically formed in each driven wheel, and warp-wise wires penetrate through the wire holes and extend to the first sides of the driven wheels; the conveying assembly is arranged close to the first sides of the driven wheels, and the weft-direction rib materials penetrate through the space between the two warp-direction wire rods on each driven wheel. The cutting-off assembly is used for cutting off after the latitudinal ribs are conveyed to a preset length; according to the implementation mode, when the warp-wise wires are twisted on the two weft-wise ribs, the driving wheel rotates forwards and backwards alternately, so that the winding directions of the warp-wise wires on the two sides of the weft-wise ribs are opposite; and the adjacent driven wheels rotate in opposite directions, so that the winding directions of the adjacent warp-wise wires are opposite, and the stability and the tensile strength of the silk screen can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of twisting and weaving mechanisms, in particular to a symmetrical winding and twisting and weaving mechanism. Background Art

[0002] Wire mesh is widely used as a reinforcement material in civil engineering and construction projects as partition mesh, wall mesh, etc.

[0003] The existing wire mesh is usually formed by twisting the warp wires and the weft reinforcing bars by a twisting mechanism. Specifically, the warp wires are usually composed of two pairs of wires twisted together, and the weft reinforcing bars pass through the warp wires. Under the action of twisting the warp wires, the warp wires and the weft reinforcing bars can be firmly connected.

[0004] However, the winding directions of adjacent warp wires in the related wire mesh are usually consistent, which makes the overall strength and stability of the wire mesh low and the weft ribs are prone to sliding.

[0005] Therefore, a novel twisting and weaving mechanism is needed to solve the above problems. Utility Model Content

[0006] The content of this utility model is used to introduce the concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this disclosure is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0007] The utility model provides a symmetrical winding and twisting mechanism to solve the technical problems mentioned in the above background technology part.

[0008] The symmetrical winding and twisting mechanism of the utility model comprises a conveying assembly for transmitting weft reinforcement materials along the weft direction, a cutting assembly for cutting the weft reinforcement materials, a twisting and twisting assembly for twisting the warp wires, and a traction machine for pulling the warp wires, wherein:

[0009] The twist weaving assembly includes a plurality of driven wheels meshed with each other in the weft direction and a driving wheel meshed with one driven wheel, each driven wheel is symmetrically provided with two wire holes, and the warp wire passes through the wire holes and extends to the first side of the driven wheel;

[0010] The conveying assembly is disposed near the first side of the driven wheel, and passes the weft ribs between the two warp wires on each driven wheel;

[0011] The cutting assembly is used to cut the weft reinforcement material after it is conveyed to a preset length;

[0012] When the warp wires are screwed onto two adjacent weft reinforcements, the driving wheel rotates forward and reverse alternately, so that the winding directions of the warp wires on both sides of the weft reinforcement are opposite; driven by the driving wheel, the adjacent driven wheels rotate in opposite directions, so that the winding directions of the adjacent warp wires are opposite.

[0013] Optionally, the conveying assembly is a double-roller conveyor.

[0014] Optionally, the weaving assembly further includes a housing for accommodating the plurality of driven wheels, and bearings adapted to the plurality of driven wheels are disposed in the housing.

[0015] Optionally, the twisting assembly further includes a servo motor disposed at the upper end of the shell, and the servo motor is connected to the driving wheel.

[0016] Optionally, the cutting assembly includes a cutting machine and a first telescopic rod and a support frame arranged at the bottom of the cutting machine, the middle part of the cutting machine is pivotally connected to the support frame, and the tail part of the cutting machine is pivotally connected to the telescopic end of the first telescopic rod; in response to the weft reinforcement being conveyed to a preset length, the first telescopic rod is extended, so that the cutting machine acts on the weft reinforcement.

[0017] Optionally, the symmetrical winding and twisting mechanism further includes a plurality of pushing assemblies arranged along the weft direction, each pushing assembly including a second telescopic rod, a connecting plate and a pushing rod, the connecting plate is connected to the telescopic end of the second telescopic rod, and the pushing rod is connected to the connecting plate along the vertical direction;

[0018] After the weft reinforcement is cut, the second telescopic rod contracts, and the push rod drives the weft reinforcement to abut against the twisted joint of the two warp wires.

[0019] Optionally, the conveying assembly further comprises a plurality of orientation slots provided to the first side of the shell, and when the weft ribs are conveyed, the weft ribs pass through each orientation slot.

[0020] Optionally, the width of each directional groove gradually decreases along the transmission direction of the weft reinforcement.

[0021] Optionally, a rotating shaft is also provided on the first side of the shell, a plurality of connecting rods are fixedly mounted on the rotating shaft, and a cover plate is connected to the bottom end of the connecting rod; in response to the weft rib material starting to be transmitted, the rotating shaft rotates so that the cover plate covers the directional groove.

[0022] Optionally, a plurality of fixing seats are further provided on the first side of the shell, and the rotating shaft rotatably passes through the plurality of fixing seats.

[0023] The above-mentioned embodiments of the present invention have the following beneficial effects: the stability and tensile strength of the wire mesh can be improved through the symmetrical winding and twisting mechanism of some embodiments of the present invention.

[0024] Specifically, multiple driven wheels are arranged in meshing along the weft direction. When the driving wheel drives a driven wheel to rotate, the two adjacent driven wheels rotate in opposite directions, so that the twisting directions of the two warp wires are opposite. In this way, the adjacent warp wires can provide relative forces to the weft ribs, thereby improving the connection strength of the wire mesh.

[0025] Furthermore, when the warp wires are twisted together with two adjacent weft reinforcements, the driving wheel rotates forward and reverse alternately, so that each weft reinforcement is subjected to forces from two twisting directions of the warp wires, further improving the connection strength of the wire mesh and improving the stability of the wire mesh. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a top view of an embodiment of the symmetrical winding and twisting mechanism of the utility model;

[0028] Figure 2 It is a structural schematic diagram of an embodiment of a twisting and weaving assembly of the utility model;

[0029] Figure 3 It is a structural schematic diagram of an embodiment of a conveying assembly of the utility model;

[0030] Figure 4 A schematic diagram of another embodiment of the conveying assembly of the utility model

[0031] Figure 5 It is a structural schematic diagram of an embodiment of a cutting assembly of the utility model;

[0032] Figure 6 It is a structural schematic diagram of an embodiment of a pushing component of the utility model;

[0033] Figure 7 It is a structural schematic diagram of another embodiment of the pushing component of the utility model;

[0034] Figure 8It is a structural schematic diagram of another embodiment of the pushing component of the utility model.

[0035] Description of reference numerals:

[0036] 11: Warp wire; 12: Weft ribs;

[0037] 2: conveying assembly; 21: directional slot; 22: rotating shaft; 23: connecting rod; 24: cover plate; 25: fixing seat;

[0038] 3: cutting assembly; 31: cutting machine; 32: first telescopic rod; 33: supporting frame;

[0039] 4: twisting assembly; 41: driving wheel; 42: driven wheel; 421: wire hole; 43: housing; 44: wire inlet board; 45: servo motor;

[0040] 5: pushing assembly; 51: second telescopic rod; 52: connecting plate; 53: pushing rod. DETAILED DESCRIPTION

[0041] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0043] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" 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 connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0044] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0045] First see Figure 1 , Figure 1 FIG. 1 is a top view of an embodiment of the symmetrical winding and twisting mechanism of the utility model. Figure 1 As shown, the symmetrical winding mechanism includes a conveying component 2, a cutting component 3, a twisting component 4 and a traction machine (not shown in the figure).

[0046] The above-mentioned twisting assembly 4 is used to twist the warp wires 11 into pairs to the weft ribs 12. Figure 1 A wire feed plate 44 may be provided above the middle twisting assembly 4. A plurality of through holes may be provided on the wire feed plate 44. Each warp wire 11 may be connected to the twisting assembly 4 through the through hole by a bobbin around which the warp wire 11 is wound. Furthermore, a roller may be provided between the bobbin and the wire feed plate 44 to press the warp wire 11 downward, thereby increasing the tension of the warp wire 11.

[0047] The conveying assembly 2 is arranged to the right side of the twisting assembly 4 ( Figure 1 direction), used to align the weft reinforcement 12 along the weft direction ( Figure 1 The horizontal direction in the figure) extends from right to left to the first side of the twisting component 4, that is, the front side of the twisting component 4 ( Figure 1 ).

[0048] The cutting assembly 3 is used to cut the weft ribs 12 after they are transported to a preset length. Figure 1 The traction machine is connected to the lower end of the traction machine (in the middle) to pull the warp wire 11 at a uniform speed. As an example, the traction machine can be a traction roller. The warp wire 11 can be a wire with strong wear resistance and toughness, such as nylon wire. The weft reinforcement 12 can be a reinforcement with a certain strength, such as steel bars.

[0049] See next Figure 2 , Figure 2 FIG. 1 is a schematic diagram of the structure of an embodiment of the twisting and weaving assembly of the utility model. Figure 2 As shown, the twisting assembly 4 may include a housing 43 (eg, Figure 6 As shown in FIG. 4 , a plurality of driven wheels 42 are rotatably connected and placed in the housing 43. The plurality of driven wheels 42 are arranged in meshing relationship along the weft direction, and each driven wheel 42 is provided with two symmetrical wire holes 421. The warp wires 11 pass through the wire inlet plate 44 and then through the wire holes 421. That is, two warp wires 11 pass through each driven wheel 42.

[0050] A connecting shaft may be provided on both sides of each driven wheel 42, and a bearing may be sleeved on the connecting shaft on each side. The outer ring of the bearing may be clamped on the housing 43, so that each driven wheel 42 can rotate relative to the housing 43.

[0051] The twisting assembly 4 also includes a driving wheel 41, which can be engaged with any driven wheel 42. The driving wheel 41 can be connected to the output shaft of the servo motor 45. The servo motor 45 can be set above the shell 43. In the working state, the servo motor 45 drives the driving wheel 41 to rotate, and the multiple driven wheels 42 rotate. At this time, the rotation directions of adjacent driven wheels 42 are opposite. Therefore, the twisting directions of the warp wires 11 of adjacent driven wheels 42 are also opposite. In this way, the multiple twisted warp wires 11 can provide a relative direction of force along the length direction of the weft ribs 12, thereby improving the connection strength of the wire mesh and preventing the weft ribs 12 from sliding.

[0052] The servo motor 45 can control the driving wheel 41 to rotate forward and reverse alternately. For example, when the warp wire 11 is screwed to the current weft rib 12, forward rotation is adopted, and when the next weft rib 12 is screwed, reverse rotation is adopted. In this way, the winding directions of the warp wires 11 on both sides of the weft rib 12 can be opposite. Therefore, the twisted warp wires 11 can provide a relative direction of force for the corresponding positions of multiple weft wires, further improving the connection strength of the wire mesh.

[0053] It should be noted that, in order to allow the weft ribs 12 to smoothly pass through the two warp wires 11 on each driven wheel 42 , the two wire holes 421 are arranged in the vertical direction before and after the driven wheel 42 rotates.

[0054] The conveying assembly 2 may be a double roller conveyor, and the conveying length of the weft rib 12 may be determined by setting the rotation speed and rotation time of the double roller conveyor. Of course, the conveying assembly 2 may also be other conveyors, and those skilled in the art may select them according to actual conditions or common knowledge.

[0055] See next Figure 3 and Figure 4 , Figure 3 It is a structural schematic diagram of an embodiment of a conveying assembly of the utility model; Figure 4 FIG. 2 is a schematic diagram of the structure of another embodiment of the conveying assembly of the utility model. Figure 3 As shown, in order to keep the weft reinforcement 12 extending in the weft direction during the conveying process, the conveying assembly 2 may further include an orientation groove 21. In order to facilitate the weft reinforcement 12 to move toward the traction machine after the weft reinforcement 12 is screwed, the open end of the orientation groove 21 is arranged in the direction of the traction machine. The groove body of the orientation groove 21 is arranged in the horizontal direction. When the weft reinforcement 12 extends, the weft reinforcement 12 passes through the groove body of the orientation groove 21. In this way, the orientation groove 21 can limit the extension direction of the weft reinforcement 12. Furthermore, the groove body width of the orientation groove 21 can be set to gradually decrease along the transmission direction of the weft reinforcement 12. In this way, it is convenient for the weft reinforcement 12 to enter the positioning groove 21 and the extension direction of the weft reinforcement 12 can be further limited.

[0056] In order to prevent the weft ribs 12 from falling off from the opening of the directional groove 21 during transportation, the conveying assembly 2 may further include a rotating shaft 22, a connecting rod 23, a cover plate 24 and a fixed seat 25. The above-mentioned fixed seat 25 may be multiple, and is arranged at intervals on the front side of the above-mentioned shell 43, and each fixed seat 25 is provided with a circular hole. The above-mentioned rotating shaft 22 can rotatably pass through the above-mentioned circular hole. The above-mentioned connecting rod 23 may be multiple, and is fixed to the above-mentioned rotating shaft 22 at intervals. The lower end of the connecting rod 23 is connected to a cover plate 24 for closing the opening of the directional groove 21. The above-mentioned connecting rod 23 and the cover plate 24 need to avoid the warp wire 11 during the setting process.

[0057] like Figure 3 As shown, before the weft ribs 12 are transported, the rotating shaft 22 drives the connecting rod 23 to rotate, so that the cover plate 24 is buckled into the opening of the directional groove 21. In this way, the weft ribs 12 can be prevented from falling off from the above opening, further restricting the weft ribs 12 and improving the reliability of the mechanism. Figure 4As shown, when the weft rib material 12 is delivered to a preset length and cut by the cutting assembly 3, the rotating shaft 22 drives the connecting rod 23 to rotate upward, so that the cover plate 24 is separated from the directional groove 21. The rotation angle of the rotating shaft 22 should ensure that the connecting rod 23 and the cover plate 24 do not affect the twisting process of the warp wire 11. Furthermore, one end of the rotating shaft 22 can be connected to a motor, and the rotating shaft 22 is driven by the motor to rotate around its own axis.

[0058] Next, combine Figure 5 and Figure 1 The cutting assembly is described. Figure 5 FIG. 1 is a schematic diagram of the structure of an embodiment of a cutting assembly of the utility model. Figure 1 and Figure 5 As shown, the cutting assembly 3 includes a cutter 31, a first telescopic rod 32 and a support frame 33. The cutter 31 is located above the weft ribs 12, and the support frame 33 is pivotally connected to the middle of the cutter 31. The first telescopic rod 32 is set to the bottom of the cutter 31, and the telescopic end of the first telescopic rod 32 is pivotally connected to the tail of the cutter 31. When the weft ribs 12 are conveyed to a preset length, the telescopic end of the first telescopic rod 32 extends, and the cutter 31 rotates around the pivot axis of the support frame 33, so that the cutting blade of the cutter 31 rotates downward, thereby cutting the weft ribs 12.

[0059] In order to reduce the gap between the warp wires 11 and the weft ribs 12 when twisting, the symmetrical winding and twisting mechanism further includes a plurality of pushing components 5. Figure 1 As shown, a plurality of pusher assemblies 5 are arranged at intervals along the weft direction. The pusher assemblies 5 are used to tightly engage the weft ribs 12 with the warp wires 11 at the twisted joint after the weft ribs 12 are cut. Figure 6 , Figure 7 and Figure 8 Provide explanation. Figure 6 It is a structural schematic diagram of an embodiment of a pushing component of the utility model; Figure 7 It is a structural schematic diagram of another embodiment of the pushing component of the utility model; Figure 8 FIG. 2 is a structural diagram of another embodiment of the push component of the utility model. Figure 6 As mentioned above, the pushing assembly 5 includes a second telescopic rod 51, a connecting plate 52 and a push rod 53. The fixed end of the second telescopic rod 51 is fixedly arranged below the warp wire 11, and the telescopic end of the second telescopic rod 51 is connected to the connecting plate 52. Two push rods 53 are arranged on the connecting plate 52, and the push rods 53 are arranged perpendicular to the upper surface of the connecting plate 52.

[0060] Figure 7The figure shows the state of the pushing assembly 5 when conveying the weft reinforcement 12 . At this time, the telescopic end of the second telescopic rod 51 drives the connecting plate 52 to extend, and the pushing rod 53 is between the weft reinforcement 12 and the housing 43 . Figure 8 The figure shows the state of the push assembly 5 after the weft ribs 12 are cut off. At this time, the telescopic end of the second telescopic rod 51 drives the connecting plate 52 to contract, and the push rod 53 drives the weft ribs 12 to move toward the screwing position of the warp wires 11 and engage. After the driven wheel 42 rotates to screw the warp wires 11, the telescopic end of the second telescopic rod 51 extends again, so that the push rod 53 is in Figure 7 In this way, the weft reinforcement 12 can be joined with the twisted part of the warp wire 11, and the gap between the twisted part of the weft reinforcement 12 and the warp wire 11 can be reduced, thereby improving the connection strength between the weft reinforcement 12 and the warp wire 11.

[0061] In the process of twisting the wire mesh through the mechanism, the warp wire 11 is first connected to the traction machine through the through hole of the wire feed plate 44 and the wire hole 421 of the driven wheel 42. The traction machine pulls the warp wire 11 at a uniform speed so that the warp wire 11 is gradually tightened. Next, the driving wheel 41 rotates in the positive direction, thereby driving the multiple driven wheels 42 to rotate, so that the warp wires 11 passing through each driven wheel 42 are intertwined and twisted with each other, and the twisting directions of adjacent warp wires 11 are opposite. Next, the conveying assembly 2 begins to convey the weft ribs 12. At this time, the rotating shaft 22 rotates, driving the cover plate 24 to cover the opening of the directional slot 21 to prevent the weft ribs 12 from deviating from the opening. In response to the weft ribs 12 being conveyed to a preset length, the telescopic end of the first telescopic rod 32 extends, so that the cutting machine 31 rotates around the pivot axis of the support frame 33, and the cutting blade of the cutting machine 31 rotates downward, thereby cutting the weft ribs 12. After the weft reinforcement 12 is cut, the rotating shaft 22 drives the cover plate 24 to rotate, so that the cover plate 24 is separated from the above-mentioned directional groove 21. After that, the telescopic end of the second telescopic rod 51 contracts, thereby driving the connecting plate 52 and the push rod 53 to move toward the direction of the traction machine, so that the push rod 53 can push the weft reinforcement 12 to engage with the warp wire 11 at the screwing point, thereby reducing the gap between the screwing point of the weft reinforcement 12 and the warp wire 11, and improving the connection strength between the weft reinforcement 12 and the warp wire 11. Finally, the driving wheel 41 rotates in the opposite direction, driving the driven wheel 42 to rotate, so that the screwing directions of the warp wires 11 on both sides of the weft reinforcement 12 are opposite. While the driven wheel 42 rotates, the telescopic end of the second telescopic rod 51 extends, driving the connecting plate 52 and the push rod 53 to move toward the direction of the housing 43. Next, the next weft reinforcement 12 is conveyed again until the twisting of the silk screen is completed.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A symmetrical winding and twisting mechanism, characterized in that: The invention comprises a conveying assembly for transmitting weft reinforcement materials in the weft direction, a cutting assembly for cutting the weft reinforcement materials, a twisting assembly for twisting the warp wires, and a traction machine for traction of the warp wires, wherein: The twist weaving assembly includes a plurality of driven wheels meshed with each other in the weft direction and a driving wheel meshed with one driven wheel, each driven wheel is symmetrically provided with two wire holes, and the warp wire passes through the wire holes and extends to the first side of the driven wheel; The conveying assembly is disposed near the first side of the driven wheel, and passes the weft ribs between the two warp wires on each driven wheel; The cutting assembly is used to cut the weft reinforcement material after it is conveyed to a preset length; When the warp wires are screwed onto two adjacent weft reinforcements, the driving wheel rotates forward and reverse alternately, so that the winding directions of the warp wires on both sides of the weft reinforcement are opposite; driven by the driving wheel, the adjacent driven wheels rotate in opposite directions, so that the winding directions of the adjacent warp wires are opposite.

2. The symmetrical winding and twisting mechanism according to claim 1 is characterized in that: The conveying assembly is a double roller conveyor.

3. The symmetrical winding and twisting mechanism according to claim 1 is characterized in that: The weaving assembly further comprises a housing for accommodating the plurality of driven wheels, wherein bearings adapted to the plurality of driven wheels are arranged in the housing.

4. The symmetrical winding and twisting mechanism according to claim 3 is characterized in that: The twisting and weaving assembly also includes a servo motor arranged at the upper end of the shell, and the servo motor is connected to the driving wheel.

5. The symmetrical winding and twisting mechanism according to claim 1 is characterized in that: The cutting assembly includes a cutting machine and a first telescopic rod and a support frame arranged at the bottom of the cutting machine, the middle part of the cutting machine is pivotally connected to the support frame, and the tail part of the cutting machine is pivotally connected to the telescopic end of the first telescopic rod; In response to the weft reinforcement being conveyed to a preset length, the first telescopic rod is extended so that the cutting machine acts on the weft reinforcement.

6. The symmetrical winding and twisting mechanism according to claim 1, characterized in that: The symmetrical winding and twisting mechanism further includes a plurality of pushing assemblies arranged along the weft direction, each pushing assembly including a second telescopic rod, a connecting plate and a pushing rod, the connecting plate being connected to the telescopic end of the second telescopic rod, and the pushing rod being connected to the connecting plate along the vertical direction; After the weft reinforcement is cut, the second telescopic rod contracts, and the push rod drives the weft reinforcement to abut against the twisted joint of the two warp wires.

7. The symmetrical winding and twisting mechanism according to claim 3 is characterized in that: The conveying assembly also includes a plurality of orientation slots provided to the first side of the housing, and the weft ribs pass through each of the orientation slots when the weft ribs are conveyed.

8. The symmetrical winding and twisting mechanism according to claim 7, characterized in that: The width of each directional groove gradually decreases along the transmission direction of the weft reinforcement.

9. The symmetrical winding and twisting mechanism according to claim 7, characterized in that: A rotating shaft is also provided on the first side of the shell, and a plurality of connecting rods are fixedly mounted on the rotating shaft, and a cover plate is connected to the bottom end of the connecting rod; in response to the weft reinforcement material starting to be transmitted, the rotating shaft rotates so that the cover plate covers the directional groove.

10. The symmetrical winding and twisting mechanism according to claim 9, characterized in that: A plurality of fixing seats are also disposed on the first side of the shell, and the rotating shaft rotatably passes through the plurality of fixing seats.

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