A multi-material tape synchronous laying equipment

By designing a multi-strip synchronous laying device, the synchronous movement of multiple laying heads and longitudinal moving tables solves the problem of slow processing speed of existing tape laying machines for single strips, realizing efficient multi-strip laying, and is suitable for large-scale and complex structure applications.

CN119871946BActive Publication Date: 2026-07-17NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Filing Date
2025-02-27
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing tape laying machines can only process single tapes, are slow, have low production efficiency, are not suitable for large-scale or complex applications, and require frequent material changes and equipment adjustments, which affects operational efficiency.

Method used

Design a multi-strip synchronous laying device, including multiple laying heads, feeding wheel sets and winding wheel sets, longitudinal moving table and transverse moving rail, which can process multiple strips at the same time. The synchronous laying of multiple strips is achieved by the movement of multiple laying heads in the horizontal plane and the reciprocating motion of the longitudinal moving table. A cutter and heating lamp are provided to improve the degree of automation.

Benefits of technology

It greatly improves work efficiency, increasing it several times compared to single-strip material laying equipment. It can quickly complete the laying of large-area material strips and is suitable for large-scale and complex structural applications.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of composite material compaction equipment technology, and provides a multi-strip synchronous laying device, including a laying head frame with multiple laying heads capable of reciprocating linear movement in a horizontal plane installed below it; a feeding roller set and a winding roller set; the feeding roller set has the same number of feeding rollers as the laying heads; the feeding rollers are configured to feed the material strip to the corresponding laying head; the winding roller set has the same number of winding rollers as the laying heads; the winding rollers are configured to continuously wind backing paper separated from the laying layer during the laying operation of the laying head; a longitudinal transfer platform is located below the laying head; the longitudinal transfer platform can reciprocate linearly in a horizontal plane, and its movement direction is perpendicular to the movement direction of the laying head; a mandrel is provided on the longitudinal transfer platform. Thus, by setting multiple laying heads, this invention can simultaneously lay multiple strips. Compared with existing single-strip laying equipment, the working efficiency of this invention is increased several times, and large-area strip laying operations can be completed quickly.
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Description

Technical Field

[0001] This invention belongs to the technical field of composite material compaction equipment, and particularly relates to a multi-material strip synchronous laying equipment. Background Technology

[0002] As disclosed in Chinese Patent CN204585872U, the core component of existing tape laying machines is the laying head, which can perform functions such as feeding, guiding, laying, compacting, and cutting of tape, enabling precise tape laying. However, existing tape laying machines can only process single tapes, have slow speeds, low production efficiency, and are unsuitable for large-scale or complex applications. If multiple tapes need to be laid simultaneously, existing tape laying machines require frequent material changes and equipment adjustments, severely impacting operational efficiency.

[0003] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the Invention

[0004] To address the aforementioned shortcomings, this invention provides a multi-material tape synchronous laying device, which solves the technical problems of low operating efficiency and limited application range of single-material tape laying devices.

[0005] To address the above problems, the present invention provides a multi-material strip synchronous laying device, comprising:

[0006] The paving frame has multiple paving heads installed underneath it, which can move back and forth in a straight line in the horizontal plane;

[0007] The feeding wheel assembly and the winding wheel assembly are respectively located on both sides of the shop frame;

[0008] The feeding roller assembly has the same number of feeding rollers as the tape laying heads, and each feeding roller corresponds to one tape laying head; the feeding rollers are configured to: fix the tape roll and feed the tape to the corresponding tape laying head; the tape includes a laying layer and a backing paper;

[0009] The take-up roller assembly has the same number of take-up rollers as the tape laying heads, and each take-up roller is set for one tape laying head; the take-up rollers are configured to: in real time wind up the backing paper that is separated from the laying layer during the tape laying operation of the tape laying head.

[0010] A longitudinal transfer platform is located below the tape laying head; the longitudinal transfer platform can reciprocate linearly in the horizontal plane, and its movement direction is perpendicular to the movement direction of the tape laying head; a core mold is provided on the longitudinal transfer platform.

[0011] According to the multi-material tape synchronous laying device of the present invention, the multiple tape laying heads are arranged at equal intervals, and the distance between two adjacent tape laying heads is an integer multiple of the width of the material tape.

[0012] According to the multi-material strip synchronous laying device of the present invention, two longitudinal transfer rails are provided below the laying head frame, and the longitudinal transfer platform is slidably disposed on the longitudinal transfer rails; the core mold is rotatably disposed on the longitudinal transfer platform.

[0013] According to the multi-material tape synchronous laying device of the present invention, the feeding wheel group further includes a horizontally arranged knife holder, on which a cutter capable of linear reciprocating motion is provided; the cutter is an ultrasonic cutter.

[0014] According to the multi-material tape synchronous laying device of the present invention, a feeding frame and a taking-up frame are respectively provided at both ends of the laying frame; the feeding wheel assembly is installed on the feeding frame, and the taking-up wheel assembly is installed on the taking-up frame; a discharge hole is provided on the feeding frame; a heating lamp located below the laying frame is also provided on the side of the discharge hole; the heating lamp is an infrared heating lamp.

[0015] According to the multi-material strip synchronous laying device of the present invention, the laying head frame is provided with a material passage hole, and a guide roller for laying material strip is provided in the material passage hole; the laying head frame is also provided with a return port, and a guide plate is inclinedly provided in the return port.

[0016] According to the multi-material tape synchronous laying device of the present invention, the number of transverse rails is the same as the number of tape laying heads horizontally arranged below the laying head frame; transverse sliders are slidably arranged on the transverse rails, and the transverse sliders suspend the tape laying heads.

[0017] According to the multi-material tape synchronous laying device of the present invention, the tape laying head includes a support block, and the support block is provided with a pressure roller.

[0018] According to the multi-material strip synchronous laying device of the present invention, the support block is further provided with a pressure shoe; the support block is provided with two inclined guide grooves; the pressure roller and the pressure shoe are respectively slidably disposed in the guide grooves on the corresponding sides.

[0019] According to the multi-material tape synchronous laying device of the present invention, a guide shaft with a rectangular cross-section is slidably provided in the guide groove, and the guide shaft is driven and connected to an adjusting electric cylinder; the pressure roller and the pressure shoe are respectively fixed to the guide shaft in the corresponding guide groove; a guide box for guiding the backing paper is also fixed on the support block.

[0020] In summary, this invention, by setting multiple laying heads, can simultaneously lay multiple strips of material, greatly improving work efficiency. Compared to existing single-strip laying equipment, the work efficiency of this invention is increased several times, enabling rapid completion of large-area strip laying operations. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention from one view;

[0022] Figure 2This is a schematic diagram of the structure of the present invention from one view;

[0023] Figure 3 yes Figure 2 A schematic diagram of a partial cross-sectional view along direction A in the middle;

[0024] Figure 4 yes Figure 2 A schematic diagram of a partial cross-sectional view along the B-axis;

[0025] Figure 5 This is a schematic diagram of the tape-laying head of the present invention;

[0026] Figure 6 This is a schematic diagram illustrating the working principle of the tape-laying head of the present invention;

[0027] In the diagram: 1-Paving head frame, 11-Transverse rail, 12-Return port, 13-Guide roller, 14-Transverse slider, 15-Transverse motor, 16-Guide plate; 2-Paving head, 21-Support block, 211-Guide groove; 22-Guide shaft, 23-Adjusting cylinder, 24-Pressure roller, 241-Pressure roller arm; 25-Pressure shoe, 251-Pressure shoe arm; 26-Guide box; 3-Feeding frame, 31-Feeding roller, 32-Knife holder, 33-Heating lamp, 34-Cutter, 35-Reversing roller, 36-Discharge hole; 4-Receiving frame, 41-Rewinding roller; 5-Longitudinal moving platform, 51-Core mold, 52-Longitudinal moving rail; 100-Backing paper, 200-Paving layer. Detailed Implementation

[0028] See Figure 1 This invention provides a multi-material tape synchronous laying device, comprising:

[0029] The paving frame 1 has multiple paving heads 2 installed below it, which can reciprocate linearly in the horizontal plane;

[0030] Feeding roller set and winding roller set are respectively arranged on both sides of the laying head frame 1; the feeding roller set has the same number of feeding rollers 31 as the laying head 2, and each feeding roller 31 is arranged corresponding to one laying head 2.

[0031] The feeding roller 31 is configured to: fix the material roll, feed the material roll to the corresponding laying head 2, and release the material roll in conjunction with the laying operation of the laying head 2. The feeding roller 31 of this invention is unpowered; as the laying operation pulls the material roll, the feeding roller 31 rotates accordingly to release the material roll.

[0032] Optionally, the feeding roller 31 of the present invention has a driving force, which can be matched with the laying speed of the material strip, and the rotation speed of the feeding roller 31 can be controlled so that the release speed of the material strip is adapted to the laying operation. Those skilled in the art can use a stepper motor or a frequency converter motor to connect the feeding roller 31 and control its rotation speed.

[0033] The take-up roller assembly has the same number of take-up rollers 41 as the tape laying head 2, and each take-up roller 41 is provided corresponding to one tape laying head 2;

[0034] Combination Figure 6 The tape of the present invention includes a base layer 200 and a backing paper 100. After the tape is rolled up, it forms a tape roll. The backing paper 100 separates two adjacent base layers 200 to prevent adhesion.

[0035] The take-up roller 41 is configured to continuously wind the backing paper 100, which is separated from the material layer 200, during the laying operation of the tape laying head 2, thereby realizing the recycling of the backing paper 100. The take-up roller 41 of the present invention has a driving force, and the rotation speed of the take-up roller 41 is controlled to be adapted to the tape laying operation.

[0036] Optionally, those skilled in the art can control the rotation speed of the take-up roller 41 to keep the backing paper 100 in an appropriate tension state, apply a certain pulling force to the material strip, and prevent the material strip from becoming loose during the feeding process.

[0037] A longitudinal transfer platform 5 is disposed below the tape laying head 2; the longitudinal transfer platform 5 is capable of reciprocating linear movement in a horizontal plane, and its movement direction is perpendicular to the movement direction of the tape laying head 2; a core mold 51 is disposed on the longitudinal transfer platform 5;

[0038] The tape laying head 2 presses the material layer 200 of the material strip onto the core mold 51; this invention has multiple tape laying heads 2, which can simultaneously lay multiple layers of material strip, greatly improving work efficiency.

[0039] Optionally, the tape-laying heads 2 of the present invention are three, four, or five.

[0040] In one embodiment, the plurality of tape-laying heads 2 of the present invention are arranged at equal intervals, and the distance between two adjacent tape-laying heads 2 is an integer multiple of the width of the tape being laid;

[0041] During the tape laying operation, each tape laying head 2 simultaneously lays multiple layers 200 of material on the core mold 51. Then, the longitudinal transfer table 5 moves a distance equal to the width of the material strip. Each tape laying head 2 then lays a second layer, and so on, until the laying is completed. Compared to single-strip tape laying equipment, the working efficiency of this invention is increased several times, and large-area tape laying operations can be completed quickly.

[0042] In one embodiment, two longitudinal rails 52 are provided below the scaffold 1, and the longitudinal platform 5 is slidably mounted on the longitudinal rails 52, so that the longitudinal platform 5 moves in a precise direction and maintains a stable posture during movement. The longitudinal platform 5 of the present invention can be equipped with a hydraulic cylinder or an electric cylinder between the two longitudinal rails 52 to precisely control the moving distance of the longitudinal platform 5.

[0043] As one embodiment, the core mold 51 is rotatably mounted on the longitudinal transfer table 5; after the previous layer of tape laying is completed, the rotation angle of the core mold 51 can be controlled to lay the next layer, which can realize the cross laying of different layers of material 200.

[0044] Those skilled in the art can achieve the rotatable mounting of the mandrel 51 on the longitudinal transfer stage 5 using known structures. For example, a slewing bearing can be provided between the mandrel 51 and the longitudinal transfer stage 5 to achieve the rotation of the mandrel 51. A rotary motor can be installed on the longitudinal transfer stage 5 to control the rotation angle of the mandrel 51.

[0045] See Figure 2 In one embodiment, the feeding wheel assembly further includes a horizontally arranged blade holder 32, on which a cutter 34 is provided that can reciprocate linearly along the blade holder 32. During the conveying process of the material belt of the present invention, its material layer 200 faces the cutter 34, and the cutter 34 is activated at a preset position to cut the material layer 200. The cutter 34 of the present invention is preferably an ultrasonic cutter, which has high cutting accuracy.

[0046] Optionally, the tape laying head 2 moves from the take-up reel group to the feed reel group to complete the laying of one layer 200. Those skilled in the art can pre-calculate the laying length of each layer 200 according to the specifications of the mandrel 51, and when the tape reaches the predetermined length, the cutter 34 is activated to cut the layer 200.

[0047] After the laying layer 200 is completed, the laying head 2 moves horizontally to one side of the take-up roller group, ready to carry out the next laying operation. During the movement of the laying head 2, the take-up roller 41 rotates synchronously to roll up the backing paper 100, and the feed roller 31 rotates synchronously to release the material strip.

[0048] This embodiment achieves automatic cutting of the material layer 200 by setting a horizontally movable cutter 34, which further improves the automation level of the tape laying operation.

[0049] As one embodiment, a feeding rack 3 and a take-up rack 4 are respectively provided at both ends of the shop frame 1; the feeding wheel assembly is installed on the feeding rack 3, and the take-up wheel assembly is installed on the take-up rack 4;

[0050] See Figure 3 Furthermore, the feeding frame 3 has a discharge hole 36; a heating lamp 33 is also provided next to the discharge hole 36, located below the fabric tray 1. After the material strip is discharged from the feeding roller 31, its spreading layer 200 faces outward; after being discharged from the discharge hole 36, the spreading layer 200 faces downward. The heating lamp 33 heats the spreading layer 200 during the material strip laying process, enabling it to better adhere or form. Especially when laying materials that require heat treatment, such as heat-sensitive materials, the heating lamp 33 can preheat them to a preset temperature, improving the forming quality.

[0051] Preferably, the heating lamp 33 of the present invention is an infrared heating lamp.

[0052] Even better, the feed frame 1 has a material passage hole, and the material passage hole is equipped with a guide roller 13 for placing the material belt; so that the material belt maintains a certain tension during the conveying process and avoids sagging.

[0053] Optionally, the feeding frame 3 is also provided with a reversing roller 35, which is used to guide the material belt at the corner position and reduce the resistance of the material belt at the corner position.

[0054] See Figure 4 As one embodiment, the shop frame 1 is also provided with a return port 12, through which the backing paper 100 is guided to the top of the shop frame 1. At the end of the winding process, the backing paper 100 moves against the top surface of the shop frame 1, making it less prone to deviation during the winding process.

[0055] Furthermore, a guide plate 16 is inclinedly provided inside the return port 12 to reduce the resistance of the backing paper 100 at the corner position of the return port 12.

[0056] See Figure 4 As one embodiment, the same number of horizontal sliding rails 11 as the number of tape-laying heads 2 are provided below the tape-laying frame 1; a horizontal sliding slider 14 is slidably provided on the horizontal sliding rail 11, and the horizontal sliding slider 14 suspends the tape-laying head 2;

[0057] Optionally, the transverse slider 14 is threaded through a lead screw, and the lead screw is connected to a transverse motor 15; the transverse motor 15 is preferably a stepper motor or a frequency converter motor, which precisely controls the movement of the tape laying head 2.

[0058] See Figure 5 As one embodiment, the tape laying head 2 includes a support block 21, on which a pressure roller 2 is provided; used to press the tape laying layer 200 onto the core mold 51.

[0059] Furthermore, the support block 21 is also provided with a pressure shoe 25; the support block 21 is provided with two inclined guide grooves 211; the pressure roller 2 and the pressure shoe 25 are respectively slidably disposed in the guide grooves 211 on the corresponding side;

[0060] Both the pressure roller 2 and the pressure shoe 25 can move along their respective guide grooves 211 to change their height, thereby changing the pressure or disengaging from the material strip. The pressure roller 2 and the pressure shoe 25 of the present invention can alternately perform the compaction action and switch to adapt to different material strip compaction requirements.

[0061] As a preferred embodiment, a guide shaft 22 with a rectangular cross-section is slidably disposed within the guide groove 211, and the guide shaft 22 is connected to an adjusting electric cylinder 23; the pressure roller 2 and the pressure shoe 25 are respectively fixedly connected to the guide shaft 22 within the corresponding guide groove 211.

[0062] Optionally, a pressure roller arm 241 is fixed on each side of the pressure roller 2, and both pressure roller arms 241 are fixed to the corresponding guide shaft 22; a pressure shoe arm 251 is fixed on each side of the pressure shoe 25, and both pressure shoe arms 251 are fixed to the corresponding guide shaft 22.

[0063] The cross-sectional shape of the guide shaft 22 is rectangular, and its two opposite surfaces are respectively attached to the side wall of the guide groove 211 to restrict the rotation of the guide shaft 22. When the guide shaft 22 slides in the guide groove 211, it can maintain the perpendicularity of the pressure roller 2 and the pressure shoe 25, thus ensuring the compaction quality.

[0064] See Figure 6 During the compaction operation, after the backing paper 100 of the material strip separates from the laying layer 200, it passes through the gap between the pressure roller 24, the pressure shoe 25, and the support block 21, and is pulled diagonally upward. Furthermore, a guide box 26 is fixed on the support block 21, through which the backing paper 100 passes and is guided to avoid deviation; it also prevents the backing paper 100 from contacting the pressure roller 24 or the pressure shoe 25 when the material strip is slack, thus avoiding interference with the compaction operation.

[0065] In summary, this invention provides a multi-strip synchronous laying device. By setting multiple laying heads, it can simultaneously lay multiple strips of material, greatly improving work efficiency. Compared with existing single-strip laying devices, the work efficiency of this invention is increased several times, enabling rapid completion of large-area strip laying operations.

[0066] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A multi-material tape synchronous laying device, characterized in that, include: The paving frame has multiple paving heads installed underneath it, which can move back and forth in a straight line in the horizontal plane; The feeding wheel assembly and the winding wheel assembly are respectively located on both sides of the shop frame; The feeding roller assembly has the same number of feeding rollers as the tape laying heads, and each feeding roller corresponds to one tape laying head; the feeding rollers are configured to: fix the tape roll and feed the tape to the corresponding tape laying head; the tape includes a laying layer and a backing paper; The take-up roller assembly has the same number of take-up rollers as the tape laying heads, and each take-up roller is set for one tape laying head; the take-up rollers are configured to: in real time wind up the backing paper that is separated from the laying layer during the tape laying operation of the tape laying head. A longitudinal transfer platform is located below the tape laying head; the longitudinal transfer platform can reciprocate linearly in the horizontal plane, and its movement direction is perpendicular to the movement direction of the tape laying head; a core mold is provided on the longitudinal transfer platform; The lower part of the shop frame is provided with two longitudinal rails, and the longitudinal platform is slidably mounted on the longitudinal rails; the core mold is rotatably mounted on the longitudinal platform; The two ends of the shop frame are respectively provided with a feeding frame and a receiving frame; the feeding wheel assembly is installed on the feeding frame, and the receiving wheel assembly is installed on the receiving frame; The laying head frame is horizontally provided with the same number of transverse rails as the laying heads; transverse sliders are slidably provided on the transverse rails, and the transverse sliders suspend the laying heads.

2. The multi-material strip synchronous laying equipment as described in claim 1, characterized in that, The multiple tape laying heads are arranged at equal intervals, and the distance between two adjacent tape laying heads is an integer multiple of the width of the tape.

3. The multi-material strip synchronous laying equipment as described in claim 1, characterized in that, The feeding wheel assembly also includes a horizontally arranged tool holder, on which a cutting blade capable of reciprocating linearly is mounted; the cutting blade is an ultrasonic blade.

4. The multi-material strip synchronous laying equipment as described in claim 1, characterized in that, The feeding rack has a discharge hole; a heating lamp is also provided on the side of the discharge hole, located below the rack; the heating lamp is an infrared heating lamp.

5. The multi-material strip synchronous laying equipment as described in claim 4, characterized in that, The scaffold has a material passage hole, and a guide roller for placing the material strip is provided in the material passage hole; the scaffold also has a return port, and a guide plate is inclinedly provided in the return port.

6. The multi-material strip synchronous laying equipment as described in any one of claims 1 to 5, characterized in that, The tape laying head includes a support block, and a pressure roller is provided on the support block.

7. The multi-material strip synchronous laying equipment as described in claim 6, characterized in that, The support block is also provided with a pressure shoe; the support block has two inclined guide grooves; the pressure roller and the pressure shoe are respectively slidably disposed in the guide grooves on the corresponding side.

8. The multi-material strip synchronous laying equipment as described in claim 7, characterized in that, A rectangular cross-section guide shaft is slidably disposed within the guide groove, and the guide shaft is driven and connected to an adjusting electric cylinder; the pressure roller and pressure shoe are respectively fixed to the guide shaft within the corresponding guide groove; a guide box for guiding the backing paper is also fixed on the support block.