Drafting equipment for polyester staple fiber production

Abstract

The utility model discloses drafting equipment for polyester staple fiber production, which relates to the technical field of fiber processing equipment and comprises a support frame, a mounting frame is arranged in the support frame, two ends of the mounting frame are fixedly connected with the support frame through connecting blocks, two drafting rollers are arranged in the mounting frame, and the two drafting rollers are fixedly connected with the support frame through connecting blocks. A pressing roller is arranged between the two drafting rollers. The two drafting rollers are arranged, the pressing roller is arranged between the two drafting rollers, the two drafting rollers are matched, drafting processing of polyester fibers can be achieved, the polyester fibers are pressed between the two drafting rollers through the pressing roller by adjusting the position of the pressing roller, and therefore the drafting effect of the drafting rollers on the polyester fibers is guaranteed. Moreover, the polyester fibers can be prevented from falling off in the processing process, so that the processing effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of fiber processing equipment, and particularly relates to a drafting device for producing polyester staple fiber. Background Art

[0002] The scientific name of polyester is polyethylene terephthalate fiber, abbreviated as polyester fiber. Polyester is the trade name of this fiber in our country. It is a fiber-forming high polymer - polyethylene terephthalate (PET) prepared from purified terephthalic acid (PTA) and ethylene glycol (EG) through esterification and polycondensation reactions, and is made into fiber through spinning and post-treatment. The basic raw material for polyester production is polyethylene terephthalate, which is made from petroleum, coal, natural gas, etc. through a series of chemical reactions. The initially prepared polyester is in a molten state, but it can be further processed into solid particles with a certain shape and size, and this kind of solid particle is called polyester chip (or polyester chip). Further processing of the polyester chip gives us the polyester fiber we want. During the processing and production of polyester staple fiber, drafting treatment is usually required.

[0003] For example, an automated polyester staple fiber drafting mechanism with the publication number CN215800120U. Its technical solution includes: an operation tabletop, two drafting mechanisms are arranged on the upper side of the operation tabletop, a flattening mechanism is arranged between the two drafting mechanisms, and a positioning mechanism is arranged on the front side of the flattening mechanism. By improving the drafting equipment, the utility model enables the device to flatten polyester staple fibers with different thicknesses, making the thickness of the polyester staple fiber drafting uniform, thereby avoiding the situation that affects the drafting quality of the polyester staple fiber. At the same time, it also makes the polyester staple fiber convenient to wind up without affecting its beauty.

[0004] The above technical solution has some problems in practical applications. It is difficult to position polyester fibers during the use of this technical solution, and polyester fibers will fall off during the drafting process. Moreover, it is rather cumbersome to replace different polyester fibers.

[0005] Therefore, it is very necessary to invent a drafting device for producing polyester staple fiber to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a drafting device for producing polyester staple fiber to solve the problems put forward in the above background art.

[0007] To achieve the above object, the present utility model provides the following technical solution: A drafting device for polyester staple fiber production, including a support frame. An installation frame is arranged inside the support frame, and both ends of the installation frame are fixedly connected to the support frame through connection blocks. Two drafting rollers are arranged inside the installation frame. A pressure roller is arranged between the two drafting rollers. An activity frame is arranged above the pressure roller. An extension frame is arranged above the activity frame. Both ends of the extension frame are movably provided with two activity seats through pin shafts, and the two activity seats are symmetrically arranged. Both ends of the installation frame are movably provided with two connection seats through pin shafts, and the two connection seats are symmetrically arranged. A compression spring is arranged between two adjacent connection seats and the activity seats. A threaded groove is penetrated through the middle of the extension frame. An adjusting screw rod is penetrated through the inside of the threaded groove, and the bottom end of the adjusting screw rod is movably arranged on the middle of the upper surface of the activity frame through a bearing.

[0008] Preferably, through holes are penetrated through both ends of the upper surface of the extension frame. Plug rods are inserted into the through holes, and the plug rods are fixedly arranged at one end of the upper surface of the activity frame.

[0009] Preferably, a transmission rod is fixedly arranged at one end of each of the two drafting rollers, and the transmission rod penetrates through one end of the installation frame through a bearing.

[0010] Preferably, a transmission gear is fixedly arranged at one end of the transmission rod. A driving gear is arranged between the two transmission gears.

[0011] Preferably, a support plate is fixedly arranged on the outside of the support frame. A driving motor is fixedly arranged in the middle of the outer side wall of the support plate, and the output shaft of the driving motor is fixedly connected to the middle of the driving gear.

[0012] Preferably, guide rollers are arranged at both ends of the inner side wall of the support frame.

[0013] The technical effects and advantages of the present utility model:

[0014] 1. By arranging two drafting rollers and a pressure roller between the two drafting rollers, the two drafting rollers cooperate to achieve the drafting process of polyester fibers. By adjusting the position of the pressure roller, the pressure roller presses the polyester fibers between the two drafting rollers to ensure the drafting effect of the drafting rollers on the polyester fibers, and can prevent the polyester fibers from falling off during the processing to ensure the processing effect.

[0015] 2. By arranging an activity seat and a connection seat above the pressure roller, and a threaded groove and an adjusting screw rod between the activity seat and the connection seat, by rotating the adjusting screw rod, the position between the activity seat and the connection seat can be adjusted to achieve the effect of adjusting the position between the pressure roller and the drafting rollers, so as to facilitate the replacement of different polyester fibers, thereby improving the processing efficiency of the device. Brief Description of the Drawings

[0016] Figure 1 This is a schematic diagram of the overall structure of the present utility model.

[0017] Figure 2 This is a front schematic diagram of the overall structure of the present utility model.

[0018] Figure 3 This is a schematic diagram of the mounting frame structure of the present utility model.

[0019] In the figure: 1, support frame; 2, mounting frame; 3, connecting block; 4, drafting roller; 5, pressure roller; 6, movable frame; 7, extension frame; 8, movable seat; 9, connecting seat; 10, compression spring; 11, threaded groove; 12, adjusting screw; 13, jack; 14, plug rod; 15, transmission rod; 16, transmission gear; 17, driving gear; 18, support plate; 19, driving motor; 20, guide roller. Detailed Embodiment

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] The present utility model provides a drafting device for polyester staple fiber production as shown in Figures 1-3 , which includes a support frame 1. An inner part of the support frame 1 is provided with a mounting frame 2, and both ends of the mounting frame 2 are fixedly connected to the support frame 1 through connecting blocks 3. An inner part of the mounting frame 2 is provided with two drafting rollers 4. A pressure roller 5 is arranged between the two drafting rollers 4. The pressure roller 5 presses the polyester fiber against the surfaces of the two drafting rollers 4 to ensure the stability during the processing of the polyester fiber;

[0022] Specifically, a movable frame 6 is arranged above the pressure roller 5, an extension frame 7 is arranged above the movable frame 6, both ends of the extension frame 7 are movably provided with two movable seats 8 through pin shafts, and the two movable seats 8 are symmetrically arranged. Both ends of the mounting frame 2 are movably provided with two connecting seats 9 through pin shafts, and the two connecting seats 9 are symmetrically arranged. A compression spring 10 is arranged between adjacent two connecting seats 9 and the movable seats 8. A threaded groove 11 is penetrated through the middle of the extension frame 7, an adjusting screw 12 is penetrated through the inside of the threaded groove 11, and a bottom end of the adjusting screw 12 is movably arranged on the middle of the upper surface of the movable frame 6 through a bearing. The cooperation between the adjusting screw 12 and the threaded groove 11 can realize the adjustment of the position of the movable frame 6, and the movable frame 6 can drive the pressure roller 5 to move;

[0023] More specifically, both ends of the upper surface of the extension frame 7 are penetrated with a plug hole 13, and the plug hole 13 is inserted with a plug rod 14, and the plug rod 14 is fixedly arranged at one end of the upper surface of the movable frame 6. The plug rod 14 cooperates with the plug hole 13 to ensure the stability of the up and down movement of the movable frame 6;

[0024] In addition, a transmission rod 15 is fixedly provided at one end of each of the two drafting rollers 4, and the transmission rod 15 is provided at one end of the mounting frame 2 through a bearing, a transmission gear 16 is fixedly provided at one end of the transmission rod 15, and a driving gear 17 is provided between the two transmission gears 16, a support plate 18 is fixedly provided at the outer side of the support frame 1, a driving motor 19 is fixedly provided at the middle part of the outer side wall of the support plate 18, and the output shaft of the driving motor 19 is fixedly connected to the middle part of the driving gear 17, the driving motor 19 drives the transmission rod 15 to rotate through the driving gear 17 and the transmission gear 16, and the transmission rod 15 drives the drafting roller 4 to rotate, so as to realize the drafting processing of the polyester fiber;

[0025] Furthermore, guide rollers 20 are provided at both ends of the inner side wall of the support frame 1, and the guide rollers 20 are used to guide the polyester fibers to enter and leave the device.

[0026] Working principle of this utility model:

[0027] When the device is in use, the polyester fiber to be processed is pulled so that the polyester fiber passes through the guide roller 20, the drafting roller 4 and the pressure roller 5 in sequence. At this time, the compression spring 10 acts on the movable seat 8 and the connecting seat 9, so that the extension frame 7 is subjected to a downward force. The extension frame 7 drives the movable frame 6 to move downward through the adjusting screw 12, and the movable frame 6 drives the pressure roller 5 to move downward. The pressure roller 5 presses the polyester fiber on the surface of the two drafting rollers 4. At this time, the driving motor 19 drives the transmission rod 15 to rotate through the driving gear 17 and the transmission gear 16, and the transmission rod 15 drives the drafting roller 4 to rotate, so as to realize the drafting processing of the polyester fiber;

[0028] When replacing polyester fiber, the position of the movable frame 6 can be adjusted by rotating the adjusting screw 12, which cooperates with the thread groove 11, and the movable frame 6 can drive the pressing roller 5 to move, so that the pressing roller 5 is separated from the drafting roller 4, so as to facilitate the replacement of polyester fiber.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A drafting device for producing polyester staple fibers, comprising a support frame (1), characterized in that: The support frame (1) is provided with a mounting frame (2) inside, and both ends of the mounting frame (2) are fixedly connected to the support frame (1) through connecting blocks (3); two drafting rollers (4) are provided inside the mounting frame (2); a pressure roller (5) is provided between the two drafting rollers (4); a movable frame (6) is provided above the pressure roller (5); an extension frame (7) is provided above the movable frame (6); two movable seats (8) are provided at both ends of the extension frame (7) through a pin shaft, and the two movable seats (8) are provided at the two ends of the extension frame (7); The seats (8) are symmetrically arranged, two connecting seats (9) are movably arranged at both ends of the mounting frame (2) through a pin shaft, and the two connecting seats (9) are symmetrically arranged, and a compression spring (10) is arranged between two adjacent connecting seats (9) and the movable seat (8), a thread groove (11) is penetrated through the middle of the extension frame (7), an adjusting screw (12) is penetrated inside the thread groove (11), and the bottom end of the adjusting screw (12) is movably arranged in the middle of the upper surface of the movable frame (6) through a bearing.

2. A drafting device for producing polyester staple fibers according to claim 1, characterized in that: Insertion holes (13) are provided at both ends of the upper surface of the extension frame (7), and an insertion rod (14) is inserted into the interior of the insertion hole (13), and the insertion rod (14) is fixedly arranged at one end of the upper surface of the movable frame (6).

3. A drafting device for producing polyester staple fibers according to claim 2, characterized in that: A transmission rod (15) is fixedly arranged at one end of each of the two drafting rollers (4), and the transmission rod (15) is arranged on one end of the mounting frame (2) through a bearing.

4. A drafting device for producing polyester staple fibers according to claim 3, characterized in that: A transmission gear (16) is fixedly arranged at one end of the transmission rod (15), and a driving gear (17) is arranged between the two transmission gears (16).

5. A drafting device for producing polyester staple fibers according to claim 4, characterized in that: A support plate (18) is fixedly arranged on the outer side of the support frame (1), a drive motor (19) is fixedly arranged on the middle part of the outer side wall of the support plate (18), and an output shaft of the drive motor (19) is fixedly connected to the middle part of the drive gear (17).

6. A drafting device for producing polyester staple fibers according to claim 5, characterized in that: Guide rollers (20) are provided at both ends of the inner side wall of the support frame (1).

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