A broken tape re-feeding mechanism and re-feeding method suitable for automatic placement

Abstract

The present invention relates to a broken tape re-feeding mechanism and a re-feeding method suitable for automatic laying, which belongs to the technical field of composite material automatic forming equipment design; the upper suction cup, the upper suction cup cylinder, and the cylinder bracket constitute the upper suction cup mechanism; the upper suction cup is moved up and down to realize the compression and adsorption of the prepreg tape from above; the lower top plate cylinder and the lower top plate constitute the lower top plate mechanism, which mainly realizes the lifting of the cutting area below the prepreg tape by the up and down movement of the lower top plate; the ultrasonic cutter, the slider, and the lead screw constitute the ultrasonic cutting mechanism, which completes the cutting action of the prepreg tape by the reciprocating motion of the ultrasonic cutter; the linear guide rail, the guide rail bracket, the sliding support plate bracket, the sliding support plate cylinder, the sliding support plate, and the sliding support plate slider constitute the sliding support plate mechanism; the prepreg tape and the isolation membrane are separated by the forward and backward extension of the sliding support plate; the present invention can realize the functional requirements of automatic cutting and re-laying of the prepreg tape when automatically tilting and laying special-shaped structures.

Description

Technical Field

[0001] The invention belongs to the technical field of composite material automatic forming equipment design, and relates to a broken tape re-feeding mechanism and a re-feeding method suitable for automatic placement. Background Art

[0002] Special-shaped composite / metal structures are composed of an inner metal structure and an outer composite structure. Using automatic tilted laying technology, prepreg tapes are tilted and laid on the outer layer of the metal structure, and after curing, a composite / metal structure is formed. During the laying process, the prepreg tapes need to be cut at a specific position and then re-laid to a specific position. However, existing tape laying heads suitable for automatic tilted laying can only complete this action manually, which cannot meet the application scenarios of frequent cutting and re-feeding. Therefore, the existing manual tape cutting and re-feeding method cannot meet the requirements of automatic tilted laying of special-shaped composite / metal structures. Summary of the Invention

[0003] The technical problem solved by the present invention is: to overcome the shortcomings of the existing technology and propose a broken tape re-feeding mechanism and re-feeding method suitable for automatic laying, which can realize the functional requirements of automatic cutting and re-laying of prepreg tapes when automatically tilting and laying special-shaped structures.

[0004] The solution of the present invention is:

[0005] A broken tape re-feeding mechanism suitable for automatic placement, comprising a wall panel, an upper suction cup, an upper suction cup cylinder, a cylinder bracket, an ultrasonic cutter, a slider, a lead screw, a lower top plate cylinder, a lower top plate, a linear guide rail, a guide rail bracket, a sliding support plate bracket, a sliding support plate cylinder, a sliding support plate, and a sliding support plate slider;

[0006] Among them, the cylinder bracket and the guide rail bracket are fixedly connected to the wall panel; the upper suction cup cylinder is fixedly connected to the cylinder bracket; the upper suction cup cylinder and the upper suction cup are fixedly connected; the upper suction cup moves up and down through the upper suction cup cylinder to achieve adsorption and compression of the prepreg tape;

[0007] The lower top plate is fixedly connected to the lower top plate cylinder, which is fixedly connected to the wall panel; the lower top plate moves up and down through the extension and contraction of the lower top plate cylinder;

[0008] The ultrasonic cutter is fixedly connected to the slider; the slider is slidably connected to the lead screw, and the lead screw is fixedly connected to the wallboard; the ultrasonic cutter realizes reciprocating motion on the lead screw through the slider;

[0009] The sliding pallet slider is fixedly connected to the guide rail bracket; the guide rail bracket is fixedly connected to the wall panel; the sliding pallet bracket is fixedly connected to the wall panel; the sliding pallet is fixedly connected to the linear guide rail, and the linear guide rail is fixedly connected to the sliding pallet bracket; the sliding pallet bracket is fixedly connected to the end of the sliding pallet cylinder; when working, the sliding pallet cylinder extends and retracts, driving the sliding pallet bracket to move forward and backward, and the linear guide rail, the sliding pallet and the sliding pallet bracket are an integral structure, and complete the forward and backward movement synchronously.

[0010] In the above-mentioned broken tape re-feeding mechanism suitable for automatic placement, the upper suction cup, upper suction cup cylinder, and cylinder bracket constitute an upper suction cup mechanism; through the up and down movement of the upper suction cup, the prepreg tape is pressed and adsorbed from above.

[0011] In the above-mentioned broken tape re-feeding mechanism suitable for automatic placement, the lower top plate cylinder and the lower top plate constitute a lower top plate mechanism, which mainly realizes the lifting of the cutting area below the prepreg tape by moving the lower top plate up and down.

[0012] In the above-mentioned broken tape re-feeding mechanism suitable for automatic placement, the ultrasonic cutter, slider, and lead screw constitute an ultrasonic cutting mechanism, and the reciprocating motion of the ultrasonic cutter completes the cutting action of the prepreg tape.

[0013] In the above-mentioned broken tape re-feeding mechanism suitable for automatic laying, the linear guide rail, guide rail bracket, sliding pallet bracket, sliding pallet cylinder, sliding pallet, and sliding pallet slider constitute a sliding pallet mechanism; the separation of the prepreg tape and the isolation membrane is achieved by the forward and backward extension of the sliding pallet.

[0014] In the above-mentioned broken tape re-feeding mechanism suitable for automatic placement, the working process of the broken tape re-feeding mechanism is as follows:

[0015] The prepreg tape with an isolation film attached to the bottom surface passes through the sliding pallet in a V shape, and the sliding pallet is extended by the sliding pallet cylinder; at this time, the upper suction cup is extended by the upper suction cup cylinder and moves downward to the surface of the prepreg tape to achieve compression and adsorption of the prepreg tape; at the same time, the lower top plate is retracted by the lower top plate cylinder, and the lower top plate moves upward to achieve lifting and dragging of the tape cutting area; the ultrasonic cutter moves from the outside to the inside through the slider to complete the cutting of the tape; after the above actions are completed, the ultrasonic cutter retreats from the inside to the outside, the lower top plate moves downward, the upper suction cup cylinder moves upward, and finally the sliding pallet cylinder retracts, and the sliding pallet moves to the right to its initial position. The cut prepreg tape is driven by the roller; it moves to the right to its initial position; the online cutting and broken tape re-feeding of the prepreg tape are completed.

[0016] A conveying method for a broken tape re-feeding mechanism suitable for automatic placement, comprising:

[0017] Make a broken belt re-feeding mechanism; including wall panels, upper suction cups, upper suction cup cylinders, cylinder brackets, ultrasonic cutters, sliders, lead screws, lower top plate cylinders, lower top plates, linear guide rails, guide rail brackets, sliding pallet brackets, sliding pallet cylinders, sliding pallets, and sliding pallet sliders;

[0018] The broken tape re-feeding mechanism can complete the online cutting and broken tape re-feeding of prepreg tapes.

[0019] In the above-mentioned method for re-feeding a broken tape suitable for automatic placement, the specific structure of the broken tape re-feeding mechanism is as follows:

[0020] The cylinder bracket and the guide rail bracket are fixedly connected to the wall panel; the upper suction cup cylinder is fixedly connected to the cylinder bracket; the upper suction cup cylinder and the upper suction cup are fixedly connected; the upper suction cup moves up and down through the upper suction cup cylinder to achieve adsorption and compression of the prepreg tape;

[0021] The lower top plate is fixedly connected to the lower top plate cylinder, which is fixedly connected to the wall panel; the lower top plate moves up and down through the extension and contraction of the lower top plate cylinder;

[0022] The ultrasonic cutter is fixedly connected to the slider; the slider is slidably connected to the lead screw, and the lead screw is fixedly connected to the wallboard; the ultrasonic cutter realizes reciprocating motion on the lead screw through the slider;

[0023] The sliding pallet slider is fixedly connected to the guide rail bracket; the guide rail bracket is fixedly connected to the wall panel; the sliding pallet bracket is fixedly connected to the wall panel; the sliding pallet is fixedly connected to the linear guide rail, and the linear guide rail is fixedly connected to the sliding pallet bracket; the sliding pallet bracket is fixedly connected to the end of the sliding pallet cylinder; when working, the sliding pallet cylinder extends and retracts, driving the sliding pallet bracket to move forward and backward, and the linear guide rail, the sliding pallet and the sliding pallet bracket are an integral structure, and complete the forward and backward movement synchronously.

[0024] In the above-mentioned method for re-feeding a broken tape suitable for automatic laying, the upper suction cup, the upper suction cup cylinder, and the cylinder bracket constitute an upper suction cup mechanism; the upper suction cup is moved up and down to realize the compression and adsorption of the prepreg tape from above; the lower top plate cylinder and the lower top plate constitute a lower top plate mechanism, which mainly realizes the lifting of the cutting area below the prepreg tape by the up and down movement of the lower top plate; the ultrasonic cutter, the slider, and the lead screw constitute an ultrasonic cutting mechanism, which completes the cutting action of the prepreg tape through the reciprocating motion of the ultrasonic cutter; the linear guide rail, the guide rail bracket, the sliding pallet bracket, the sliding pallet cylinder, the sliding pallet, and the sliding pallet slider constitute a sliding pallet mechanism; the prepreg tape and the isolation membrane are separated by the forward and backward extension of the sliding pallet.

[0025] In the above-mentioned method for re-feeding a broken tape suitable for automatic placement, the working process of the broken tape re-feeding mechanism is as follows:

[0026] The prepreg tape with an isolation film attached to the bottom surface passes through the sliding pallet in a V shape, and the sliding pallet is extended by the sliding pallet cylinder; at this time, the upper suction cup is extended by the upper suction cup cylinder and moves downward to the surface of the prepreg tape to achieve compression and adsorption of the prepreg tape; at the same time, the lower top plate is retracted by the lower top plate cylinder, and the lower top plate moves upward to achieve lifting and dragging of the tape cutting area; the ultrasonic cutter moves from the outside to the inside through the slider to complete the cutting of the tape; after the above actions are completed, the ultrasonic cutter retreats from the inside to the outside, the lower top plate moves downward, the upper suction cup cylinder moves upward, and finally the sliding pallet cylinder retracts, and the sliding pallet moves to the right to its initial position. The cut prepreg tape is driven by the roller; it moves to the right to its initial position; the online cutting and broken tape re-feeding of the prepreg tape are completed.

[0027] The beneficial effects of the present invention compared with the prior art are:

[0028] (1) The present invention realizes the online cutting and re-feeding of broken tapes during the automatic laying of special-shaped composite materials / metal structures.

[0029] (2) The present invention comprises four parts, namely: an upper suction cup mechanism, a lower top plate mechanism, an ultrasonic cutting mechanism and a sliding support mechanism. The four mechanisms act sequentially to realize the four steps of separation of the isolation film and the cloth tape, cutting, re-bonding of the isolation film and the cloth tape, and delivery of the broken tape.

[0030] (3) The present invention uses a simple mechanical structure to sequentially move the cloth belt to achieve online cutting and re-feeding of broken belts, avoiding complex structural design and automatic control, and greatly reducing the control difficulty of the entire system.

[0031] (4) The present invention is used for online cutting and re-feeding of tapes when special-shaped composite materials / metal structures are automatically tilted and laid. Practical application has shown that the application of the present invention to laying special-shaped composite materials structures can fully meet the needs of automatic cutting and re-feeding of broken tapes on complex surfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a front view of the broken belt re-feeding mechanism of the present invention;

[0033] Figure 2 It is a schematic diagram of the back side of the broken belt re-feeding mechanism of the present invention. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the embodiments.

[0035] The present invention provides a broken tape re-feeding mechanism and a re-feeding method suitable for automatic laying, wherein the broken tape re-feeding mechanism can realize the functional requirements of automatically cutting and re-laying prepreg tapes when automatically tilting and laying special-shaped structures.

[0036] like Figure 1 、 Figure 2 As shown, the broken tape re-feeding mechanism suitable for automatic laying specifically includes a wall panel 1, an upper suction cup 2, an upper suction cup cylinder 3, a cylinder bracket 4, an ultrasonic cutter 5, a slider 6, a screw 7, a lower top plate cylinder 8, a lower top plate 9, a linear guide rail 10, a guide rail bracket 11, a sliding pallet bracket 12, a sliding pallet cylinder 13, a sliding pallet 14 and a sliding pallet slider 15.

[0037] The upper suction cup 2, upper suction cup cylinder 3, and cylinder bracket 4 constitute the upper suction cup mechanism. This mechanism primarily achieves compression and suction of the prepreg tape from above, primarily through the up and down movement of the upper suction cup 2. Its components are as follows: the cylinder bracket 4 and the guide rail bracket 11 are fixedly connected to the wall panel 1. The upper suction cup cylinder 3 is fixedly connected to the cylinder bracket 4. The upper suction cup cylinder 3 is fixedly connected to the upper suction cup 2. The upper suction cup 2 can be extended and retracted by the upper suction cup cylinder 3, allowing it to move up and down, effectively sucking and pressing the prepreg tape.

[0038] The lower lift plate mechanism, consisting of the lower lift plate cylinder 8 and the lower lift plate 9, primarily supports the cutting area below the prepreg tape by moving the lower lift plate 9 up and down. The mechanism is structured as follows: the lower lift plate 9 is fixedly connected to the lower lift plate cylinder 8, which is in turn fixedly connected to the wall panel 1. The lower lift plate 9 can be moved up and down by extending and retracting the lower lift plate cylinder 8.

[0039] The ultrasonic cutter 5, slider 6, and lead screw 7 form the ultrasonic cutting mechanism. The reciprocating motion of the ultrasonic cutter 5 cuts the prepreg tape. The mechanism is structured as follows: the ultrasonic cutter 5 is fixedly connected to the slider 6. The slider 6 is slidably connected to the lead screw 7, which is fixedly connected to the wall panel 1. The ultrasonic cutter's reciprocating motion on the lead screw is achieved through the slider.

[0040] The linear guide 10, the guide rail bracket 11, the sliding pallet bracket 12, the sliding pallet cylinder 13, the sliding pallet 14, and the sliding pallet slider 15 constitute the sliding pallet mechanism, which mainly realizes the separation of the prepreg tape and the isolation membrane by the forward and backward extension and contraction of the sliding pallet 14. Its composition is as follows: the sliding pallet slider 15 is fixedly connected to the guide rail bracket 11, the guide rail bracket 11 is fixedly connected to the wall panel 1, and the sliding pallet bracket 12 is fixedly connected to the wall panel 1. The sliding pallet 14 is fixedly connected to the linear guide 10, the linear guide 10 is fixedly connected to the sliding pallet bracket 12, and the sliding pallet bracket 12 is fixedly connected to the end of the sliding pallet cylinder 13. During operation, the sliding pallet cylinder 13 extends and contracts, driving the sliding pallet bracket 12 to move forward and backward. The linear guide 10, the sliding pallet 14 and the sliding pallet bracket 12 are an integral structure, and the forward and backward movement is completed synchronously.

[0041] The working process of the broken belt re-feeding mechanism is as follows:

[0042] The prepreg tape with an isolation film attached to the bottom surface passes through the sliding support plate 14 in a V shape, and the sliding support plate 14 is extended by the sliding support plate cylinder 13; at this time, the upper suction cup 2 is extended by the upper suction cup cylinder 3 and moves downward to the surface of the prepreg tape to achieve compression and adsorption of the prepreg tape; at the same time, the lower top plate 9 is retracted by the lower top plate cylinder 8, and the lower top plate 9 moves upward to achieve lifting and dragging of the tape cutting area; the ultrasonic cutter 5 moves from the outside to the inside through the slider 6 to complete the cutting of the tape; after the above actions are completed, the ultrasonic cutter 5 retreats from the inside to the outside, the lower top plate 9 moves downward, the upper suction cup cylinder 3 moves upward, and finally the sliding support plate cylinder 13 retracts, and the sliding support plate 14 moves to the right to the initial position. The cut prepreg tape is driven by the roller; it moves to the right direction to the initial position; the online cutting and broken tape re-feeding of the prepreg tape are completed.

[0043] The transmission method mainly includes the following steps:

[0044] Step 1. Make a broken belt re-feeding mechanism; it includes a wall panel 1, an upper suction cup 2, an upper suction cup cylinder 3, a cylinder bracket 4, an ultrasonic cutter 5, a slider 6, a screw 7, a lower top plate cylinder 8, a lower top plate 9, a linear guide rail 10, a guide rail bracket 11, a sliding pallet bracket 12, a sliding pallet cylinder 13, a sliding pallet 14 and a sliding pallet slider 15.

[0045] The specific structure of the broken belt re-feeding mechanism is as follows:

[0046] The cylinder bracket 4 and the guide rail bracket 11 are fixedly connected to the wall panel 1; the upper suction cup cylinder 3 is fixedly connected to the cylinder bracket 4; the upper suction cup cylinder 3 and the upper suction cup 2 are fixedly connected; the upper suction cup 2 is moved up and down by the upper suction cup cylinder 3 to achieve adsorption and compression of the prepreg tape;

[0047] The lower top plate 9 is fixedly connected to the lower top plate cylinder 8, and the lower top plate cylinder 8 is fixedly connected to the wall panel 1; the lower top plate 9 is moved up and down by the extension and contraction of the lower top plate cylinder 8;

[0048] The ultrasonic cutter 5 is fixedly connected to the slider 6; the slider 6 is slidably connected to the screw 7, and the screw 7 is fixedly connected to the wall panel 1; the ultrasonic cutter 5 realizes reciprocating motion on the screw 7 through the slider 6;

[0049] The sliding pallet slider 15 is fixedly connected to the guide rail bracket 11; the guide rail bracket 11 is fixedly connected to the wall panel 1; the sliding pallet bracket 12 is fixedly connected to the wall panel 1; the sliding pallet 14 is fixedly connected to the linear guide rail 10, and the linear guide rail 10 is fixedly connected to the sliding pallet bracket 12; the sliding pallet bracket 12 is fixedly connected to the end of the sliding pallet cylinder 13; when working, the sliding pallet cylinder 13 extends and retracts, driving the sliding pallet bracket 12 to move forward and backward, and the linear guide rail 10 and the sliding pallet 14 and the sliding pallet bracket 12 are an integral structure, and complete the forward and backward movement synchronously.

[0050] The upper suction cup 2, the upper suction cup cylinder 3, and the cylinder bracket 4 constitute the upper suction cup mechanism; the upper suction cup 2 is moved up and down to realize the compression and adsorption of the prepreg tape from above; the lower top plate cylinder 8 and the lower top plate 9 constitute the lower top plate mechanism, which mainly realizes the lifting of the cutting area below the prepreg tape by the up and down movement of the lower top plate 9; the ultrasonic cutter 5, the slider 6, and the lead screw 7 constitute the ultrasonic cutting mechanism, which completes the cutting action of the prepreg tape through the reciprocating motion of the ultrasonic cutter 5; the linear guide rail 10, the guide rail bracket 11, the sliding support plate bracket 12, the sliding support plate cylinder 13, the sliding support plate 14, and the sliding support plate slider 15 constitute the sliding support plate mechanism; the separation of the prepreg tape and the isolation membrane is realized by the forward and backward extension of the sliding support plate 14.

[0051] Step 2: Use the broken tape re-feeding mechanism to complete the online cutting and broken tape re-feeding of the prepreg tape. The specific process is as follows:

[0052] The prepreg tape with an isolation film attached to the bottom surface passes through the sliding support plate 14 in a V shape, and the sliding support plate 14 is extended by the sliding support plate cylinder 13; at this time, the upper suction cup 2 is extended by the upper suction cup cylinder 3 and moves downward to the surface of the prepreg tape to achieve compression and adsorption of the prepreg tape; at the same time, the lower top plate 9 is retracted by the lower top plate cylinder 8, and the lower top plate 9 moves upward to achieve lifting and dragging of the tape cutting area; the ultrasonic cutter 5 moves from the outside to the inside through the slider 6 to complete the cutting of the tape; after the above actions are completed, the ultrasonic cutter 5 retreats from the inside to the outside, the lower top plate 9 moves downward, the upper suction cup cylinder 3 moves upward, and finally the sliding support plate cylinder 13 retracts, and the sliding support plate 14 moves to the right to the initial position. The cut prepreg tape is driven by the roller; it moves to the right direction to the initial position; the online cutting and broken tape re-feeding of the prepreg tape are completed.

[0053] The present invention comprises four parts, namely: an upper suction cup mechanism, a lower top plate mechanism, an ultrasonic cutting mechanism and a sliding support mechanism. The four mechanisms act sequentially to realize the four steps of separating the isolation film and the cloth tape, cutting, re-bonding the isolation film and the cloth tape, and sending out the broken tape.

[0054] This invention uses a simple mechanical structure with sequential actions to achieve online tape cutting and re-feeding of broken tapes, avoiding complex structural design and automatic control, significantly reducing the control difficulty of the entire system. This invention also enables online tape cutting and re-feeding of broken tapes during the automated placement of special-shaped composite materials or metal structures.

[0055] The present invention is used for online cutting and re-feeding of broken tapes during the automatic tilted laying of special-shaped composite materials / metal structures. Practical application verification shows that the application of the present invention to the laying of special-shaped composite materials structures fully meets the requirements of automatic cutting and re-feeding of broken tapes on complex surfaces.

[0056] Although the present invention has been disclosed above in terms of preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications to the technical solutions of the present invention by using the methods and technical contents disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the scope of protection of the technical solutions of the present invention.

Claims

1. A broken tape re-feeding mechanism suitable for automatic placement, characterized by: It comprises a wall panel (1), an upper suction cup (2), an upper suction cup cylinder (3), a cylinder bracket (4), an ultrasonic cutter (5), a slider (6), a lead screw (7), a lower top plate cylinder (8), a lower top plate (9), a linear guide rail (10), a guide rail bracket (11), a sliding support plate bracket (12), a sliding support plate cylinder (13), a sliding support plate (14) and a sliding support plate slider (15); The cylinder bracket (4) and the guide rail bracket (11) are fixedly connected to the wall panel (1); the upper suction cup cylinder (3) is fixedly connected to the cylinder bracket (4); the upper suction cup cylinder (3) and the upper suction cup (2) are fixedly connected; the upper suction cup (2) is moved up and down by the upper suction cup cylinder (3) to achieve adsorption and compaction of the prepreg tape; The lower top plate (9) is fixedly connected to the lower top plate cylinder (8), and the lower top plate cylinder (8) is fixedly connected to the wall panel (1); the lower top plate (9) moves up and down through the extension and contraction of the lower top plate cylinder (8); The ultrasonic cutter (5) is fixedly connected to the slider (6); the slider (6) is slidably connected to the lead screw (7), and the lead screw (7) is fixedly connected to the wallboard (1); the ultrasonic cutter (5) realizes reciprocating motion on the lead screw (7) through the slider (6); The sliding support plate slider (15) is fixedly connected to the guide rail bracket (11); the guide rail bracket (11) is fixedly connected to the wall panel (1); the sliding support plate bracket (12) is fixedly connected to the wall panel (1); the sliding support plate (14) is fixedly connected to the linear guide rail (10); the linear guide rail (10) is fixedly connected to the sliding support plate bracket (12); the sliding support plate bracket (12) is fixedly connected to the end of the sliding support plate cylinder (13); when working, the sliding support plate cylinder (13) is extended and retracted, driving the sliding support plate bracket (12) to move forward and backward, and the linear guide rail (10) and the sliding support plate (14) and the sliding support plate bracket (12) are an integral structure, and synchronously complete the forward and backward movement; The prepreg tape with an isolation film attached to the bottom is formed into a V shape and passes through the sliding support plate (14), and the sliding support plate (14) is extended by the sliding support plate cylinder (13); at this time, the upper suction cup (2) is extended by the upper suction cup cylinder (3) and moves downward to the surface of the prepreg tape to achieve compression and adsorption of the prepreg tape; at the same time, the lower top plate (9) is retracted by the lower top plate cylinder (8), and the lower top plate (9) moves upward to achieve lifting and dragging of the tape cutting area; the ultrasonic cutter (5) moves from the outside to the inside through the slider (6) to complete the cutting of the tape; after the above action is completed, the ultrasonic cutter (5) retreats from the inside to the outside, the lower top plate (9) moves downward, the upper suction cup cylinder (3) moves upward, and finally the sliding support plate cylinder (13) is retracted, and the sliding support plate (14) moves to the right to the initial position, and the cut prepreg tape is driven by the roller; it moves to the right to the initial position; the online cutting and broken tape re-feeding of the prepreg tape are completed.

2. A broken tape re-feeding mechanism suitable for automatic placement according to claim 1, characterized in that: The upper suction cup (2), the upper suction cup cylinder (3), and the cylinder bracket (4) constitute an upper suction cup mechanism; through the up and down movement of the upper suction cup (2), the prepreg tape is pressed and adsorbed from above.

3. The broken tape re-feeding mechanism suitable for automatic placement according to claim 1, characterized in that: The lower top plate cylinder (8) and the lower top plate (9) constitute a lower top plate mechanism, which mainly realizes the lifting of the cutting area below the prepreg tape by moving the lower top plate (9) up and down.

4. The broken tape re-feeding mechanism suitable for automatic placement according to claim 1, characterized in that: The ultrasonic cutter (5), the slider (6), and the lead screw (7) constitute an ultrasonic cutting mechanism, and the reciprocating motion of the ultrasonic cutter (5) completes the cutting action of the prepreg tape.

5. The broken tape re-feeding mechanism suitable for automatic placement according to claim 1, characterized in that: The linear guide rail (10), the guide rail bracket (11), the sliding support plate bracket (12), the sliding support plate cylinder (13), the sliding support plate (14), and the sliding support plate slider (15) constitute a sliding support plate mechanism; the separation of the prepreg tape and the isolation membrane is achieved by the forward and backward extension of the sliding support plate (14).

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