High-strength stretching and shaping device for polyester fiber short filaments

Abstract

The utility model relates to the technical field of polyester fiber production, and discloses a high-strength stretching and shaping device for polyester fiber short filaments, which comprises a bottom plate, and the top of the bottom plate is fixedly connected with a fixing plate. The vibrator is started to work to enable the bending roller to vibrate, polyester fiber short filaments wind around the bending roller, under the vibration effect, movement and rearrangement of fiber molecular chains are promoted, disordered structures in fibers are preliminarily carded, internal stress concentration points are reduced, the crystallinity and orientation degree of the fibers are improved, and the polyester fiber short filaments are made to be uniform. Meanwhile, the inner arc face of the arc-shaped guide shell is close to the bending roller, the arc-shaped guide effect on the fibers is achieved, when polyester fiber short filaments pass through the arc-shaped track, due to the fact that the lengths of paths on the inner side and the outer side are different, the slight stretching effect can be generated, the pre-stretching effect is achieved, the fibers can better bear tension in the follow-up formal stretching process, and the tensile strength of the polyester fiber short filaments is improved. And the stretching uniformity and strength are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to polyester fiber production technical field, concretely is a kind of high-strength tensile setting device of polyester fiber short filament. BACKGROUND

[0002] In the textile industry, polyester fiber short filament is widely used in clothing, industrial products, home textiles and other fields due to its excellent properties, such as high strength, good wear resistance, strong chemical stability, etc. With the increasing demand for the performance of polyester fiber short filament, tensile setting has become a key process to improve its quality and performance. Tensile setting not only improves the orientation and crystallinity of the fiber, but also significantly improves the strength, elasticity and other physical properties of the fiber to meet the needs of different application scenarios.

[0003] The conventional polyester fiber short filament tensile setting device directly stretches the fiber during the stretching process, lacking an effective pre-stretching step. Since the internal structure of the polyester fiber short filament is relatively disordered in the initial state, direct stretching can cause uneven stress on the fiber, stress concentration in some areas, and defects in the stretching process, limiting the further improvement of the fiber strength. Therefore, a high-strength tensile setting device for polyester fiber short filament is proposed to solve the above problems. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a high-strength tensile setting device for polyester fiber short filament to overcome the shortcomings of the prior art.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of a high-strength tensile setting device for polyester fiber short filament, comprising a bottom plate, a fixed plate is fixedly connected to the top of the bottom plate, a right feeding roller is rotatably connected to the front of the fixed plate through a bearing, a left feeding roller is rotatably connected to the front of the fixed plate through a bearing, and a pre-stretching mechanism and a tensile setting mechanism are respectively arranged on the fixed plate.

[0006] The pre-stretching mechanism comprises a bending roller, a sliding hole, the bending roller is rotatably connected to the front of the fixed plate through a bearing, a vibrator is connected to the front of the bending roller, the sliding hole is opened in the front of the fixed plate, a guide rod is fixedly connected in the inner cavity of the sliding hole, a support plate is slidably connected to the outer wall of the guide rod, the outer wall of the support plate is slidably connected to the inner wall of the sliding hole, a spring is fixedly connected to the bottom of the support plate, the bottom end of the spring is fixedly connected to the inner wall of the sliding hole, an arc-shaped guide shell is fixedly connected to the top of the support plate, and the inner arc surface of the arc-shaped guide shell is close to the bending roller.

[0007] The stretching setting mechanism comprises a shell fixedly connected to the front face of the fixed plate, the left and right sides of the shell are open, three stretching rollers are rotationally connected to the inner wall of the shell through bearings, and the three stretching rollers are distributed in a triangular shape, the rear ends of the rotating shafts of the upper two stretching rollers extend backward through the shell and the fixed plate, and the top inner wall of the shell is connected with baking lamps.

[0008] Preferably, the outer walls of the rotating shafts of the upper two stretching rollers are respectively fixedly sleeved with synchronous pulleys, and the two synchronous pulleys are drivingly connected through a synchronous belt.

[0009] Preferably, the rear end of the rotating shaft of the upper right stretching roller is fixedly connected to the output end of the second motor through a shaft coupling.

[0010] Preferably, the number of the baking lamps is two, and the two baking lamps are oppositely connected to the top inner wall of the shell.

[0011] Preferably, the back face of the fixed plate is connected with two first motors, and the rear ends of the rotating shafts of the right and left feeding rollers extend through the fixed plate and are respectively fixedly connected to the output ends of the two first motors through shaft couplings.

[0012] Preferably, the fixed plate is provided with a limiting mechanism, the limiting mechanism comprises a limiting plate which is bolted to the front face of the fixed plate and located between the shell and the bending roller, a plurality of limiting grooves are equidistantly formed in the bottom of the limiting plate, and the limiting grooves are arranged in an inverted U shape.

[0013] The above technical scheme can bring the following beneficial effects:

[0014] 1. The high-strength stretching setting device for polyester fiber short filaments can make the bending roller vibrate by starting the vibrator, the polyester fiber short filaments pass through the bending roller, the vibration promotes the movement and rearrangement of the fiber molecular chains, the internal disordered structure of the fiber is initially combed, the internal stress concentration points are reduced, the crystallinity and orientation of the fiber are improved, and thus the strength of the fiber is enhanced.

[0015] 2、The high-strength tensile setting device for polyester fiber short filaments can limit the fiber in the fiber conveying and stretching process, can prevent the fiber from deviating, can ensure that the fiber always moves along the predetermined path, and improves the accuracy of the tensile setting and the stability of the product quality. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front structure schematic view of the utility model;

[0017] Figure 2 It is a front structure schematic view of the utility model;

[0018] Figure 3 It is a front structure schematic view of the utility model;

[0019] Figure 4 It is a front structure schematic view of the utility model.

[0020] In the figure: 1, bottom plate; 2, fixed plate; 3, right feeding roller; 4, left feeding roller; 5, pre-stretching mechanism; 51, bending roller; 52, vibrator; 53, sliding hole; 54, guide rod; 55, support plate; 56, spring; 57, arc-shaped guide shell; 6, stretching setting mechanism; 61, shell; 62, stretching roller; 63, baking lamp; 64, synchronous pulley; 65, second motor; 7, limiting mechanism; 71, limiting plate; 72, limiting groove; 8, first motor. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] In the description of the utility model, it should be understood that the terms "up", "down", "front", "back", "left", "right", "top", "bottom", "in", "out" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0023] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term "installation", "connection", "arrangement" should do broad sense understanding, for example, can be fixedly connected, arrangement, also can be detachable connection, arrangement, or integrally connected, arrangement. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0024] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "several" is two or more than two, unless otherwise explicitly limited.

[0025] Please refer to Figures 1-4One embodiment of the utility model provides a kind of high-strength tensile setting device of dacron fiber short filament, including bottom plate 1, the top of bottom plate 1 is fixedly connected with fixed plate 2, the front of fixed plate 2 is rotatably connected with right feeding roller 3 by bearing, the front of fixed plate 2 is rotatably connected with left feeding roller 4 by bearing, the back of fixed plate 2 is connected with two first motor 8, the rotating shaft rear end of right feeding roller 3, left feeding roller 4 is all through fixed plate 2 and is fixedly connected with the output of two first motor 8 respectively by coupling, two first motor 8 can be ensured synchronous operation by synchronous control system (such as PLC controller), by starting two first motor 8 respectively drive right feeding roller 3 and left feeding roller 4 rotation, realize the stable feeding of dacron fiber short filament, guarantee the continuity of entire tensile setting process, fixed plate 2 is separately provided with pre-stretching mechanism 5 and tensile setting mechanism 6;Pre-stretching mechanism 5 includes: bending roller 51, sliding hole 53, bending roller 51 is rotatably connected on the front of fixed plate 2 by bearing, the front of bending roller 51 is connected with vibrator 52, vibrator 52 can adopt the application number CN202022710393.The prior art means disclosed in the Chinese patent No. 9, the specific structure and working principle are well known to those skilled in the art, and will not be repeated here. The sliding hole 53 is opened on the front surface of the fixed plate 2, the inner cavity of the sliding hole 53 is fixedly connected with the guide rod 54, the outer wall of the guide rod 54 is slidingly connected with the support plate 55, and the outer wall of the support plate 55 is slidingly connected with the inner wall of the sliding hole 53. The bottom of the support plate 55 is fixedly connected with the spring 56, the bottom end of the spring 56 is fixedly connected with the inner wall of the sliding hole 53, the top of the support plate 55 is fixedly connected with the arc-shaped guide shell 57, the inner arc surface of the arc-shaped guide shell 57 is close to the bending roller 51, the bending roller 51 is vibrated by starting the vibrator 52, the polyester fiber short filament is wound around the bending roller 51, under the action of vibration, the movement and rearrangement of the fiber molecular chain are promoted, the internal structure of the fiber is preliminarily combed, the internal stress concentration points are reduced, the crystallinity and orientation of the fiber are improved, and the strength of the fiber is enhanced. At the same time, the support plate 55 is in the sliding hole 53, guided by the guide rod 54 and elastically supported by the spring 56, the arc-shaped guide shell 57 is driven to float up and down, the polyester fiber short filament is conveniently wound around the bending roller 51, the inner arc surface of the arc-shaped guide shell 57 is close to the bending roller 51, the fiber is arc-guided, the polyester fiber short filament is slightly stretched when passing through the arc-shaped track due to the different path lengths of the inner and outer sides, the effect of pre-stretching is achieved, the fiber can better withstand the tension when formally stretched subsequently, and the stretching uniformity and strength are improved. The stretching and setting mechanism 6 comprises: a shell 61 fixedly connected to the front surface of the fixed plate 2, the left and right sides of the shell 61 are both open, three stretching rollers 62 are rotatably connected to the inner wall of the shell 61 through bearings, and the three stretching rollers 62 are distributed in a triangular shape, the rear ends of the rotating shafts of the upper two stretching rollers 62 both penetrate the shell 61 and the fixed plate 2 and extend backward, an oven lamp 63 is connected to the top inner wall of the shell 61, the number of the oven lamps 63 is two, the two oven lamps 63 are oppositely connected to the top inner wall of the shell 61, synchronous pulleys 64 are respectively fixedly sleeved on the outer walls of the rotating shafts of the upper two stretching rollers 62 and located at the rear of the fixed plate 2, the two synchronous pulleys 64 are transmissionally connected through a synchronous belt, a second motor 65 is connected to the back surface of the fixed plate 2 through a support, the rear end of the rotating shaft of the right upper stretching roller 62 is fixedly connected to the output end of the second motor 65 through a coupling, the polyester fiber short filament is wound between the three stretching rollers 62 and passes through, the right upper stretching roller 62 is driven to rotate by starting the second motor 65, and then another upper stretching roller 62 is driven to synchronously rotate through the transmission action of the synchronous pulleys 64 and the synchronous belt, so that the fiber is subjected to consistent tension in the stretching process, the stretching uniformity is ensured, and the fiber is heated by starting the two oven lamps 63 in the fiber stretching process. Under the double action of the tension provided by the stretching rollers 62 and the heat provided by the oven lamps 63, the fiber is not only stretched to a suitable length, but also the internal structure is stably set.

[0026] Working principle: by starting two first motor 8 drive right feeding roller 3 and left feeding roller 4 rotation respectively, realize the stable feeding of polyester fiber short filament, by starting vibrator 52 work makes the bending roller 51 produce vibration, and support plate 55 in sliding hole 53, rely on guide rod 54 guide and spring 56 elastic support, drive arc-shaped guide shell 57 float up and down, facilitate polyester fiber short filament bypass bending roller 51, by bypass bending roller 51, under the action of vibration, promote the movement and rearrangement of fiber molecular chain, make the preliminary combing of the internal disorder structure of fiber, reduce internal stress concentration point, help to improve the crystallinity and orientation of fiber, thereby enhance the strength of fiber, simultaneously, the inner arc surface of arc-shaped guide shell 57 is close to bending roller 51, and the arc-shaped guide effect is generated to fiber, and polyester fiber short filament is slightly stretched when passing through the arc-shaped track, so that the effect of pre-stretching is generated, so that the fiber can better bear the tension when formally stretched subsequently, the uniformity and strength of stretching are improved, by winding polyester fiber short filament between three stretching rollers 62, and by starting second motor 65 to drive the upper right stretching roller 62 to rotate, and then by the transmission effect of synchronous pulley 64 and synchronous belt, the other upper stretching roller 62 is driven to rotate synchronously, so that the fiber is subjected to consistent tension in the stretching process, the uniformity of stretching is ensured, and the fiber is heated by starting two baking lamps 63 in the fiber stretching process, and under the double action of the tension provided by stretching roller 62 and the heat provided by baking lamp 63, the fiber is not only stretched to a suitable length, but also the internal structure is stably set.

[0027] Please refer to Figures 1-4 On the basis of the above embodiment, in another embodiment of the utility model, the limiting mechanism 7 is arranged on the fixed plate 2, the limiting mechanism 7 includes: the limiting plate 71 is bolted on the front of the fixed plate 2 and is located between the shell 61 and the bending roller 51, a plurality of limiting grooves 72 are equidistantly arranged on the bottom of the limiting plate 71, and the limiting grooves 72 are arranged in inverted "U" shape, the limiting grooves 72 can limit the fiber during the fiber conveying and stretching process, the fiber deviation can be prevented, the fiber always moves along the predetermined path is ensured, and the accuracy of stretching and setting and the stability of product quality are improved.

[0028] Working principle: the polyester fiber short filament is arranged in the limiting groove 72, the limiting groove 72 can limit the fiber during the fiber conveying and stretching process, the fiber deviation can be prevented, and the fiber always moves along the predetermined path is ensured.

[0029] It is worth mentioning that the vibrator 52, the baking lamp 63, the first motor 8 and the second motor 65 in the above embodiment are all common devices in the prior art, and the type and the like can be customized according to actual use requirements.

[0030] The utility model provides a kind of high-strength tensile setting device of dacron fiber short filament, and the method and approach of specifically realizing this technical scheme are many, above-mentioned is only preferred embodiment of the utility model, it should be pointed out, for the ordinary skilled in the art of this technology, under the premise of not departing from the principle of the utility model, still can make several improvements and refinements, these improvements and refinements also should be regarded as the protection scope of the utility model.The components not specified in the embodiment can be realized using existing technology.

Claims

1. A high-strength drawing setting device for polyester fiber staple, comprising a base plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected with a fixed plate (2), the front surface of the fixed plate (2) is rotatably connected with a right feeding roller (3) through a bearing, the front surface of the fixed plate (2) is rotatably connected with a left feeding roller (4) through a bearing, and the fixed plate (2) is respectively provided with a pre-stretching mechanism (5) and a stretching and shaping mechanism (6). The pre-stretching mechanism (5) comprises a bending roller (51), a sliding hole (53), the bending roller (51) is rotatably connected to the front surface of the fixed plate (2), the front surface of the bending roller (51) is connected with a vibrator (52), the sliding hole (53) is formed in the front surface of the fixed plate (2), the inner cavity of the sliding hole (53) is fixedly connected with a guide rod (54), the outer wall of the guide rod (54) is slidably connected with a support plate (55), the outer wall of the support plate (55) is slidably connected with the inner wall of the sliding hole (53), the bottom of the support plate (55) is fixedly connected with a spring (56), the bottom end of the spring (56) is fixedly connected with the inner wall of the sliding hole (53), the top of the support plate (55) is fixedly connected with an arc-shaped guide shell (57), and the inner arc surface of the arc-shaped guide shell (57) is close to the bending roller (51). The stretching and shaping mechanism (6) comprises a shell (61), the shell (61) is fixedly connected to the front surface of the fixed plate (2), the left and right sides of the shell (61) are both open, the inner wall of the shell (61) is rotatably connected with three stretching rollers (62), the three stretching rollers (62) are distributed in a triangular shape, the rear ends of the rotating shafts of the upper two stretching rollers (62) both penetrate the shell (61) and the fixed plate (2) and extend rearward, and the top inner wall of the shell (61) is connected with an oven lamp (63).

2. The high-strength drawing setting device for polyester fiber filaments according to claim 1, characterized by: The outer walls of the rotating shafts of the upper two stretching rollers (62) are respectively fixedly sleeved with synchronous pulleys (64), and the two synchronous pulleys (64) are located rearward of the fixed plate (2) and are drivingly connected with each other through a synchronous belt.

3. The high-strength drawing setting device for polyester fiber filaments according to claim 1, characterized in that: The rear surface of the fixed plate (2) is connected with a second motor (65) through a support, and the rear end of the rotating shaft of the upper right stretching roller (62) is fixedly connected with the output end of the second motor (65) through a shaft coupling.

4. The high-strength drawing setting device for polyester fiber filaments according to claim 1, characterized in that: The number of the oven lamps (63) is two, and the two oven lamps (63) are oppositely connected to the top inner wall of the shell (61).

5. The high-strength drawing setting device for polyester fiber filaments according to claim 1, characterized by: The rear surface of the fixed plate (2) is connected with two first motors (8), the rear ends of the rotating shafts of the right feeding roller (3) and the left feeding roller (4) both penetrate the fixed plate (2) and are fixedly connected with the output ends of the two first motors (8) through shaft couplings.

6. The high-strength drawing setting device for polyester fiber filaments according to claim 1, wherein: The fixed plate (2) is provided with a limiting mechanism (7), the limiting mechanism (7) comprises a limiting plate (71), the limiting plate (71) is bolted to the front surface of the fixed plate (2) and located between the shell (61) and the bending roller (51), a plurality of limiting grooves (72) are equidistantly formed in the bottom of the limiting plate (71), and the limiting grooves (72) are arranged in an inverted "U" shape.

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