Tow tension reducing mechanism of automatic tow placement machine

Abstract

The utility model discloses a tow tension reducing mechanism of an automatic tow placement machine, which comprises a mounting seat, two mounting rods are fixedly welded on the bottom wall of the mounting seat, a fixing rod is fixedly welded on the two mounting rods, a plurality of tow guide rollers which are distributed at equal intervals are rotatably mounted on the fixing rod, an adjusting seat is arranged on one side of the mounting seat, and the adjusting seat is arranged on the other side of the mounting seat. A plurality of screw holes distributed at equal intervals are formed in the adjusting seat, adjusting studs are in threaded connection with the interiors of the screw holes of the adjusting seat, a door-shaped mounting frame is rotatably mounted at the bottom end of each adjusting stud, a fixing shaft is fixedly mounted on each door-shaped mounting frame, and an adjusting roller is rotatably mounted on each fixing shaft. According to the utility model, the tightness of the tension of the tows can be adjusted through the arranged adjusting rollers, and the arranged adjusting rollers can be independently adjusted, so that the tension of the tows can be independently adjusted according to the tightness of the tension of the tows, the practicability is higher, and the device has the characteristics of simple overall structure, low manufacturing cost and convenience in maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of filament winding machines, in particular to a wire bundle tension reduction mechanism for an automatic filament winding machine. Background Technique

[0002] The automatic filament winding technology has been widely applied and developed in the past thirty years and has become a typical representative of the composite material forming automation technology. Compared with the automatic tape laying technology, the automatic filament winding process has better adaptability and can be used to manufacture composite material parts with complex curved surfaces. For filament winding machines, the configurations of the filament winding heads of each manufacturer are different but the basic functions are similar, and they can all complete functions such as pressing roller yarn laying, yarn feeding, yarn breaking, yarn stopping, tension control, temperature control, and laying pressure control.

[0003] After retrieval, it is found that the authorized patent with the publication number of CN210415585U in the prior art discloses a wire bundle tension reduction mechanism for an automatic filament winding machine. A pressing wheel assembly is arranged on the upper end surface of the base. Both ends of the guide wheel assembly are connected to the support plate. An intermediate wheel assembly is installed on the upper end of the support plate. A friction wheel assembly is installed on the intermediate wheel assembly. The friction wheel assembly and the intermediate wheel assembly are used in cooperation for power transmission. The tension reduction motor assembly is installed on the side wall of the support plate, and the tension reduction motor assembly provides power for the friction wheel assembly. In order to reduce the tension of the prepreg during the automatic filament winding process and thus realize the laying of complex curved surfaces, the utility model adds a tension reduction mechanism in the filament winding head to reduce the fiber tension at the pressing roller. The intermediate wheel of the utility model can float up and down. When the intermediate wheel does not work, that is, when the pressing wheel does not need to press the carbon fiber, the intermediate wheel will fall due to gravity, but due to the limit of the floating baffle, the falling distance of the intermediate wheel is only used to separate from the friction wheel, effectively preventing accidents.

[0004] However, when the above technical solution is actually used, there are still the following deficiencies: during the filament winding process, the tension generated by each wire bundle is different due to different factors, and the above device cannot independently adjust the tension of each wire bundle during use, so the practicability is poor. In view of this, we propose a wire bundle tension reduction mechanism for an automatic filament winding machine. Content of the Utility Model

[0005] The purpose of the utility model is to provide a wire bundle tension reduction mechanism for an automatic filament winding machine to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A wire bundle tension reduction mechanism for an automatic filament winding machine, including:

[0007] Mounting base, two mounting rods are fixedly welded to the bottom wall of the mounting base, a fixing rod is fixedly welded to the two mounting rods, and a plurality of equally spaced tow guide rollers are rotatably mounted on the fixing rod. One side of the mounting base is provided with an adjusting base, a plurality of equally spaced threaded holes are opened in the adjusting base, an adjusting stud is threadedly connected in the threaded hole of the adjusting base, the bottom end of the adjusting stud is rotatably mounted with a portal mounting bracket, a fixing shaft is fixedly mounted on the portal mounting bracket, and an adjusting roller is rotatably mounted on the fixing shaft. The top end of the adjusting stud is fixedly mounted with a screwing wheel.

[0008] Preferably, two guide rods are fixedly welded to the top walls of the plurality of portal mounting brackets, the two guide rods are symmetrically arranged on both sides of the adjusting stud, and the guide rods are slidably connected to the adjusting base.

[0009] Preferably, the plurality of adjusting rollers are respectively arranged in alignment with the plurality of tow guide rollers.

[0010] Preferably, two connecting rods are fixedly welded to one side wall of the adjusting base, and the two connecting rods are both fixedly welded to the mounting base.

[0011] Preferably, the mounting base is provided with four mounting holes.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] During the use of the present utility model, the mounting base is fixedly installed on the automatic fiber placement machine through fastening bolts, and the tows are respectively passed through the tow guide rollers and the adjusting rollers for guiding fiber placement. When the tension of a certain tow is too tight or too loose during the fiber placement process, the screwing wheel at the corresponding position can be screwed to drive the corresponding adjusting stud to rotate, so that the portal mounting bracket moves under the guiding action of the guide rod, driving the adjusting roller to move, realizing the adjustment of the tension of the tow. The plurality of adjusting rollers provided can be adjusted independently, so as to facilitate independent adjustment according to the tension of the tow, with higher practicability, and the overall structure of the device is simple, having the characteristics of low cost and convenient maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. is a three-dimensional structural diagram of a tow tension reducing mechanism of an automatic fiber placement machine proposed by the present utility model;

[0015] Figure 2 FIG. is a front view structural diagram of the whole in a tow tension reducing mechanism of an automatic fiber placement machine proposed by the present utility model;

[0016] Figure 3 FIG. is a side view structural diagram of the connection between the adjusting base and the adjusting stud in a tow tension reducing mechanism of an automatic fiber placement machine proposed by the present utility model.

[0017] In the figure: 1, mounting base; 2, mounting rod; 3, fixing rod; 4, tow guide roller; 5, adjusting base; 6, adjusting stud; 7, gantry mounting bracket; 8, fixed shaft; 9, adjusting roller; 10, screwing wheel; 11, guide rod; 12, connecting rod; 13, mounting hole. Specific implementation manner

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-3 , the present invention provides a technical solution: a tow tension reducing mechanism for an automatic fiber placement machine, including:

[0020] Mounting base 1, two mounting rods 2 are fixedly welded on the bottom wall of the mounting base 1, a fixing rod 3 is fixedly welded on the two mounting rods 2, and a plurality of equally spaced tow guide rollers 4 are rotatably mounted on the fixing rod 3. One side of the mounting base 1 is provided with an adjusting base 5, a plurality of equally spaced screw holes are opened in the adjusting base 5, an adjusting stud 6 is threadedly connected in the screw hole of the adjusting base 5, the bottom end of the adjusting stud 6 is rotatably mounted with a gantry mounting bracket 7, a fixed shaft 8 is fixedly mounted on the gantry mounting bracket 7, an adjusting roller 9 is rotatably mounted on the fixed shaft 8, and a screwing wheel 10 is fixedly mounted on the top end of the adjusting stud 6.

[0021] Two guide rods 11 are fixedly welded on the top wall of each of the plurality of gantry mounting brackets 7. The two guide rods 11 are symmetrically arranged on both sides of the adjusting stud 6. The guide rods 11 are slidably connected to the adjusting base 5. The provided guide rods 11 are used to play a role of positioning and guiding the adjusting roller 9 when adjusting the adjusting roller 9.

[0022] Each of the plurality of adjusting rollers 9 is arranged in alignment with each of the plurality of tow guide rollers 4, which is convenient for the tow to slide on the tow guide rollers 4 and the adjusting rollers 9.

[0023] Two connecting rods 12 are fixedly welded on one side wall of the adjusting base 5. The two connecting rods 12 are both fixedly welded on the mounting base 1. The connecting rods 12 are used to install and fix the adjusting base 5.

[0024] Four mounting holes 13 are opened in the mounting base 1. The mounting holes 13 can fix the mounting base 1 at the required position by means of the provided fastening bolts.

[0025] Working principle: During the use of this utility model, the mounting base 1 is fixedly installed on the automatic fiber placement machine through fastening bolts. The tows are passed through the tow guide rollers 4 and the adjusting rollers 9 one by one for guiding and fiber placement. When the tension of a certain tow is too tight or too loose during the fiber placement process, the corresponding turning wheel 10 can be rotated to drive the corresponding adjusting stud 6 to rotate, so that the gantry mounting bracket 7 moves under the guiding action of the guiding rod 11, driving the adjusting roller 9 to move, realizing the adjustment of the tension of the tow. The multiple adjusting rollers 9 provided can be adjusted individually, so as to facilitate independent adjustment according to the tension of the tow, with higher practicability. Moreover, the overall structure of this device is simple, featuring low cost and convenient maintenance.

[0026] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0027] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A tow tension reducing mechanism for an automatic wire laying machine, characterized in that: include: A mounting seat (1), wherein two mounting rods (2) are fixedly welded on the bottom wall of the mounting seat (1), and fixing rods (3) are fixedly welded on the two mounting rods (2), and a plurality of equidistantly distributed tow guide rollers (4) are rotatably mounted on the fixing rods (3); an adjustment seat (5) is provided on one side of the mounting seat (1), and a plurality of equidistantly distributed screw holes are opened on the adjustment seat (5), and an adjustment stud (6) is threadedly connected to the screw hole of the adjustment seat (5), and a door-type mounting frame (7) is rotatably mounted on the bottom end of the adjustment stud (6), and a fixing shaft (8) is fixedly mounted on the door-type mounting frame (7), and an adjustment roller (9) is rotatably mounted on the fixing shaft (8), and a screwing wheel (10) is fixedly mounted on the top end of the adjustment stud (6).

2. The tow tension relief mechanism of the automatic wire placing machine according to claim 1, characterized in that: Two guide rods (11) are fixedly welded on the top walls of the plurality of door-shaped mounting frames (7), the two guide rods (11) are symmetrically arranged on both sides of the adjustment stud (6), and the guide rods (11) are slidably connected to the adjustment seat (5).

3. The tow tension relief mechanism of the automatic wire placing machine according to claim 1, characterized in that: The plurality of adjusting rollers (9) are respectively arranged in alignment with the plurality of tow guide rollers (4).

4. The tow tension relief mechanism of the automatic wire placing machine according to claim 1, characterized in that: Two connecting rods (12) are fixedly welded on one side wall of the adjustment seat (5), and the two connecting rods (12) are fixedly welded on the mounting seat (1).

5. The tow tension relief mechanism of the automatic wire placing machine according to claim 1, characterized in that: The mounting seat (1) is provided with four mounting holes (13).

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