Fiber bundle unfolding structure of one-way prepreg tape machine

Abstract

The utility model discloses a one-way prepreg tape machine fiber bundle unfolding structure which comprises a machine frame, a feeding port and a discharging port are formed in the two ends of the machine frame in the length direction respectively, at least one set of adjusting pipes are arranged between the feeding port and the discharging port, and gills are evenly distributed in the length direction of a telescopic part. An unfolding gap for fibers to pass through is formed between every two adjacent gills, and when the two-way lead screw rotates, the adjacent gills are close to or away from each other. The two-way lead screw controls the moving blocks to be close to and far away from each other, then the telescopic parts connected with the moving blocks are stretched and shortened, the expansion gaps between the gills are controlled to be enlarged or reduced, fiber bundles are expanded more evenly, and the fiber bundle expanding device has the advantage that the fiber bundle expanding gaps are adjustable.

Description

Technical Field

[0001] The utility model relates to fiber conveying equipment, in particular to a fiber bundle unfolding structure of a unidirectional prepreg machine. Background Art

[0002] In the prior art, the glass fiber bundles are expanded on the fiber supply frame before entering the composite machine. However, since the traction device is too far away from the hot composite position, the glass fibers are still easily mixed together during the subsequent traction process, resulting in uneven fiber arrangement in the final composite sheet. Therefore, an expansion structure is needed that can control the expansion and closing of the glass fibers and solve the problem of uneven fiber arrangement. Utility Model Content

[0003] The utility model aims to provide a fiber bundle spreading structure of a unidirectional prepreg machine, which has the advantage of adjustable fiber bundle spreading spacing.

[0004] The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a unidirectional prepreg machine fiber bundle unfolding structure, comprising a frame, wherein the two ends of the frame in the length direction are respectively a feed port and a discharge port, at least one group of adjusting tubes is arranged between the feed port and the discharge port, the adjusting tube extends along the width direction of the frame, a bidirectional screw is arranged in the adjusting tube, the bidirectional screw is rotatably connected to the frame, one end of the bidirectional screw is connected to a hand wheel, the left-handed part and the right-handed part of the bidirectional screw are both connected to a moving block, each of the adjusting tubes is provided with a telescopic part, the telescopic part is connected to the moving block, a needle comb is arranged on the top of the telescopic part, the needle combs are evenly distributed along the length direction of the telescopic part, an unfolding gap for the fiber to pass through is formed between adjacent needle combs, and when the bidirectional screw rotates, the adjacent needle combs approach or move away.

[0005] Preferably, the telescopic portion has a scissors-shaped structure.

[0006] By adopting the above technical solution, mechanical uniform expansion and contraction can be achieved.

[0007] Preferably, the telescopic part includes a first upper connecting rod, a first lower connecting rod, a second upper connecting rod and a second lower connecting rod, one end of the first upper connecting rod in the length direction is connected to the second lower connecting rod of the adjacent telescopic part, the other end of the first upper connecting rod in the length direction is connected to one end of the second lower connecting rod, the first lower connecting rod is located at the bottom of the first upper connecting rod, the middle part of the first upper connecting rod is rotatably connected to the middle part of the first lower connecting rod, one end of the first lower connecting rod is connected to the end part of the second upper connecting rod of the adjacent telescopic part, the other end of the first lower connecting rod is connected to one end of the second upper connecting rod, the other end of the second upper connecting rod is connected to the end part of the first lower connecting rod of the adjacent telescopic part, the other end of the second lower connecting rod is connected to the first upper connecting rod of the adjacent telescopic part, and the middle part of the second upper connecting rod is rotatably connected to the middle part of the second lower connecting rod.

[0008] By adopting the above technical solution, a specific connection method is disclosed, and at the same time, a connection method between adjacent telescopic parts is disclosed, thereby realizing specific mechanical telescopic expansion.

[0009] Preferably, a needle combing plate is provided at the bottom of the needle comb, a needle hole for inserting the needle comb is provided at the top of the needle combing plate, the needle combing plate is located above the first upper connecting rod and the second lower connecting rod, and a rotating connecting piece is provided between adjacent needle combing plates, and the rotating connecting piece passes downward into the telescopic part.

[0010] By adopting the above technical solution, the needle comb can be quickly installed, and at the same time, when the first upper connecting rod and the second lower connecting rod are rotated in the horizontal direction, the size of the unfolding gap can be better controlled.

[0011] Preferably, a clamping seat is disposed at the top of the first upper connecting rod and the second lower connecting rod, and a clamping groove is disposed at the top of the clamping seat, and the clamping groove cooperates with the pin-combing plate.

[0012] By adopting the above technical solution, the clamping seat cooperates with the pin combing plate to achieve quick connection of the pin combing plate.

[0013] Preferably, the adjusting tube is provided with a sliding groove for slidingly connecting the middle parts of the first upper connecting rod, the first lower connecting rod, the second upper connecting rod and the second lower connecting rod, and the sliding groove extends along the length direction of the adjusting tube.

[0014] By adopting the above technical solution, the rotating connection position can be moved in the length direction, thereby avoiding the problem of the telescopic part being stuck.

[0015] Preferably, a sliding plate is provided on the adjusting tube, the bottom of the sliding plate is connected to the moving block, and the top of the sliding plate is fixedly connected to the telescopic part.

[0016] By adopting the above technical solution, after the moving block passes through the adjusting tube, it is connected with the sliding plate on the adjusting tube.

[0017] Preferably, the telescopic portion is an elastic band, and the needle comb is vertically arranged on the elastic band.

[0018] By adopting the above technical solution, the elastic band is in a uniformly stretched state when stretched, ensuring that the intervals between the needle combs are uniform.

[0019] Preferably, vertical plates are provided on both sides of the frame in the width direction, and mounting grooves matching the ends of the adjusting tubes are provided on the vertical plates. The mounting grooves are arranged to penetrate upward in the height direction, and T-blocks for tightening the two ends of the adjusting tubes are provided on the vertical plates, and the T-blocks are connected to the tops of the vertical plates by bolts.

[0020] By adopting the above technical solution, the vertical plate is a part of the frame, and the connection and fixation of the regulating pipe is achieved through the T-block.

[0021] In summary, the frame can be set close to the glass fiber bundle unwinding device or the subsequent hot-melt coating device according to the actual site and needs; in the process of feeding the glass bundle, the bidirectional screw controls the moving block to approach and move away by rotating the hand wheel, and then the telescopic part connected with the moving block is extended and shortened, thereby controlling the expansion gap between the needle combs to become larger or smaller, making the expansion of the fiber bundle more uniform, and having the advantage of adjustable fiber bundle expansion spacing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an embodiment;

[0023] Figure 2 yes Figure 1 An enlarged schematic diagram of part A is shown;

[0024] Figure 3 yes Figure 1 The enlarged schematic diagram of part B is shown;

[0025] Figure 4 yes Figure 1 An enlarged schematic diagram of part C is shown;

[0026] Figure 5 is a cross-sectional schematic diagram of the embodiment at the position of the bidirectional screw rod;

[0027] In the figure, 1. frame; 11. feed port; 12. discharge port; 13. vertical plate; 14. mounting groove; 15. T-block; 2. adjusting tube; 21. bidirectional screw rod; 22. hand wheel; 23. moving block; 3. telescopic part; 31. first upper connecting rod; 32. first lower connecting rod; 33. second upper connecting rod; 34. second lower connecting rod; 4. unfolding gap; 41. needle combing plate; 42. needle hole; 43. clamping seat; 44. card embedding groove; 45. sliding plate. DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0029] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0030] Example:

[0031] like Figures 1 to 5 As shown, a fiber bundle unfolding structure of a unidirectional prepreg machine includes a frame 1, and the two ends of the frame 1 in the length direction are a feed port 11 and a discharge port 12 respectively. At least one group of regulating tubes 2 is arranged between the feed port 11 and the discharge port 12. In this embodiment, two groups of regulating tubes 2 are arranged, and the regulating tubes 2 are square tubes.

[0032] like Figures 1 to 4 As shown, the overall structure of the frame 1 is that vertical plates 13 are arranged on both sides of the width direction of the frame 1, and mounting grooves 14 matching with the ends of the adjusting tubes 2 are arranged on the vertical plates 13. The mounting grooves 14 are arranged to penetrate upward along the height direction of the frame 1 (i.e., the vertical plates 13). A T-block 15 for pressing the ends of the adjusting tubes 2 is arranged on the vertical plates 13 on each side, and both sides of the T-block 15 are fixedly connected to the tops of the vertical plates 13 by bolts, thereby limiting the upward movement of the adjusting tubes 2. At the same time, a rotating roller for pulling the glass fiber bundle is arranged in the frame 1.

[0033] like Figure 1 As shown, the adjusting tube 2 extends along the width direction of the frame 1, and a bidirectional screw rod 21 is arranged in the adjusting tube 2. The bidirectional screw rod 21 is rotatably connected to the frame 1, and one end of the bidirectional screw rod 21 protrudes out of the vertical plate 13 and is connected to a hand wheel 22. Figure 5As shown, the left-handed part and the right-handed part of the bidirectional screw 21 are both connected to a moving block 23, and then when the hand wheel 22 drives the bidirectional screw 21 to rotate, the moving block 23 moves toward or away from each other, and a telescopic part 3 is arranged above each adjusting tube 2. The telescopic part 3 has two setting methods, namely, an elastic band or a scissor-like structure. Since the elastic band is difficult to restore the deformation, the telescopic part 3 in this embodiment adopts a scissor-like structure, and the two ends of the telescopic part 3 are connected to the moving block 23. A needle comb is arranged on the top of the telescopic part 3 (when an elastic band is used, the needle comb is vertically arranged on the elastic band), and the needle combs are evenly distributed along the length direction of the telescopic part 3, and an expansion gap 4 for fibers to pass through is formed between adjacent needle combs. When the bidirectional screw 21 rotates, adjacent needle combs approach or move away.

[0034] like Figure 2 and Figure 5 As shown, the specific structure of the telescopic part 3 is as follows: in order to explain the structure clearly, the telescopic part 3 is composed of four connecting rods as a unit, and adjacent units are hereinafter referred to as adjacent telescopic parts 3; the telescopic part 3 includes a first upper connecting rod 31, a first lower connecting rod 32, a second upper connecting rod 33 and a second lower connecting rod 34, one end of the first upper connecting rod 31 in the length direction is connected to the second lower connecting rod 34 of the adjacent telescopic part 3, the other end of the first upper connecting rod 31 in the length direction is connected to one end of the second lower connecting rod 34, the first lower connecting rod 32 is located at the bottom of the first upper connecting rod 31, the middle part of the first upper connecting rod 31 is rotatably connected to the middle part of the first lower connecting rod 32, and one end of the first lower connecting rod 32 is connected to the end of the second upper connecting rod 33 of the adjacent telescopic part 3 The other end of the first lower connecting rod 32 is connected to one end of the second upper connecting rod 33, the other end of the second upper connecting rod 33 is connected to the end of the first lower connecting rod 32 of the adjacent telescopic part 3, the other end of the second lower connecting rod 34 is connected to the first upper connecting rod 31 of the adjacent telescopic part 3, and the middle part of the second upper connecting rod 33 is rotatably connected to the middle part of the second lower connecting rod 34; the rotational connection method is an axial hole fit, that is, it is in a rotatable state, and the middle connection position passes through the adjusting tube 2. In order to avoid getting stuck in the telescopic state, the adjusting tube 2 is provided with a sliding groove for sliding connection of the middle parts of the first upper connecting rod 31, the first lower connecting rod 32, the second upper connecting rod 33 and the second lower connecting rod 34, and the sliding groove extends along the length direction of the adjusting tube 2.

[0035] like Figure 2 and Figure 5 As shown, in order to facilitate the installation of the connecting block, sliding plates 45 are provided at both ends of the adjusting tube 2 in the length direction, i.e., above the connecting block. The sliding plates 45 are inverted U-shaped metal plates. The bottom of the sliding plate 45 is connected to the top of the moving block 23, and the top of the sliding plate 45 is rotatably connected to the middle of the first upper connecting rod 31, the first lower connecting rod 32, the second upper connecting rod 33 and the second lower connecting rod 34 (the sliding groove is not provided at the rotating connection position).

[0036] like Figure 2 As shown, in order to facilitate the installation of the needle comb, a needle comb plate 41 is provided at the bottom of the needle comb, and a needle hole 42 for inserting the needle comb is provided at the top of the needle comb plate 41, and the needle comb plate 41 is located above the first upper connecting rod 31 and the second lower connecting rod 34. A rotating connecting piece is provided between adjacent needle comb plates 41, and the rotating connecting piece passes downward into the telescopic part 3. A clamping seat 43 is provided at the top of the first upper connecting rod 31 and the second lower connecting rod 34, and a card-embedded groove 44 is provided at the top of the clamping seat 43, and the card-embedded groove 44 cooperates with the needle comb plate 41.

[0037] Working principle:

[0038] When the glass fiber bundle is fed, the glass fiber wire bundle on the yarn frame enters the frame 1 under the traction of the traction roller, and the fiber bundle passes through the unfolding gap 4 between the needle combing plates 41. By rotating the hand wheel 22, the first upper connecting rod 31, the first lower connecting rod 32, the second upper connecting rod 33 and the second lower connecting rod 34 are folded along the length direction, and then the unfolding gap 4 is evenly opened, thereby realizing the unfolding of the glass fiber bundle. At the same time, when the hand wheel 22 is rotated in the opposite direction, the glass fiber bundle can be narrowed toward the middle.

Claims

1. A fiber bundle spreading structure of a unidirectional prepreg machine, comprising a frame (1), characterized in that: The two ends of the frame (1) in the length direction are respectively a feed port (11) and a discharge port (12). At least one group of adjusting tubes (2) is arranged between the feed port (11) and the discharge port (12). The adjusting tubes (2) extend along the width direction of the frame (1). A bidirectional screw rod (21) is arranged inside the adjusting tube (2). The bidirectional screw rod (21) is rotatably connected to the frame (1). One end of the bidirectional screw rod (21) is connected to a hand wheel (22). The left-handed part and the right-handed part of the bidirectional screw rod (21) are both connected to a moving block (23). Each of the adjusting tubes (2) is provided with a telescopic part (3). The telescopic part (3) is connected to the moving block (23). A needle comb is arranged on the top of the telescopic part (3). The needle combs are evenly distributed along the length direction of the telescopic part (3). An expansion gap (4) for fibers to pass through is formed between adjacent needle combs. When the bidirectional screw rod (21) rotates, adjacent needle combs move closer or farther away.

2. The fiber bundle deployment structure of the unidirectional prepreg machine according to claim 1, characterized in that: The telescopic portion (3) is in a scissor-shaped structure.

3. The fiber bundle deployment structure of the unidirectional prepreg machine according to claim 2 is characterized in that: The telescopic part (3) comprises a first upper connecting rod (31), a first lower connecting rod (32), a second upper connecting rod (33) and a second lower connecting rod (34); one end of the first upper connecting rod (31) in the length direction is connected to the second lower connecting rod (34) of the adjacent telescopic part (3); the other end of the first upper connecting rod (31) in the length direction is connected to one end of the second lower connecting rod (34); the first lower connecting rod (32) is located at the bottom of the first upper connecting rod (31); the middle part of the first upper connecting rod (31) is rotated with the middle part of the first lower connecting rod (32) The first lower connecting rod (32) is connected to the end of the second upper connecting rod (33) of the adjacent telescopic part (3), the other end of the first lower connecting rod (32) is connected to one end of the second upper connecting rod (33), the other end of the second upper connecting rod (33) is connected to the end of the first lower connecting rod (32) of the adjacent telescopic part (3), the other end of the second lower connecting rod (34) is connected to the first upper connecting rod (31) of the adjacent telescopic part (3), and the middle part of the second upper connecting rod (33) is rotatably connected to the middle part of the second lower connecting rod (34).

4. The fiber bundle deployment structure of the unidirectional prepreg machine according to claim 3 is characterized in that: A needle combing plate (41) is provided at the bottom of the needle comb, and a needle hole (42) for inserting the needle comb is provided at the top of the needle combing plate (41). The needle combing plate (41) is located above the first upper connecting rod (31) and the second lower connecting rod (34). A rotating connecting piece is provided between adjacent needle combing plates (41), and the rotating connecting piece passes downward into the telescopic part (3).

5. The fiber bundle deployment structure of the unidirectional prepreg machine according to claim 4, characterized in that: A clamping seat (43) is provided at the top of the first upper connecting rod (31) and the second lower connecting rod (34), and a clamping groove (44) is provided at the top of the clamping seat (43), and the clamping groove (44) cooperates with the needle combing plate (41).

6. The fiber bundle spreading structure of the unidirectional prepreg machine according to claim 4, characterized in that: The adjusting tube (2) is provided with a sliding groove for slidingly connecting the middle parts of the first upper connecting rod (31), the first lower connecting rod (32), the second upper connecting rod (33) and the second lower connecting rod (34), and the sliding groove extends along the length direction of the adjusting tube (2).

7. The fiber bundle deployment structure of the unidirectional prepreg machine according to claim 6, characterized in that: The regulating tube (2) is provided with a sliding plate (45), the bottom of the sliding plate (45) is connected to the moving block (23), and the top of the sliding plate (45) is fixedly connected to the telescopic part (3).

8. The fiber bundle deployment structure of the unidirectional prepreg machine according to claim 1, characterized in that: The telescopic portion (3) is an elastic belt, and the needle comb is vertically arranged on the elastic belt.

9. The fiber bundle deployment structure of the unidirectional prepreg machine according to claim 1, characterized in that: Vertical plates (13) are arranged on both sides of the frame (1) in the width direction, and mounting grooves (14) are arranged on the vertical plates (13) to match the ends of the adjusting tubes (2), and the mounting grooves (14) are arranged to penetrate upward in the height direction, and T-shaped blocks (15) are arranged on the vertical plates (13) to press the two ends of the adjusting tube (2), and the T-shaped blocks (15) are connected to the top of the vertical plates (13) by bolts.

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