A premix device for staple fiber spinning

Abstract

The utility model discloses a premix device for short fiber spinning, including hopper, the upper end of hopper is provided with the upper cover, the lower end of upper cover is provided with the mixing barrel, the lower end center of upper cover is fixedly connected with sieve cylinder, and the sieve cylinder is located the inside of mixing barrel upper end center, the inside of mixing barrel front end lower side is forwardly penetrated with the liquid guide tube, the lower end center of mixing barrel is connected with the discharge pipe, the inside fixed connection of hopper upper end has the fixed link, the lower end center of fixed link upper end is fixedly connected with the mixing motor, the lower end center rotationally connected of mixing motor has motor rotating shaft, and motor rotating shaft is downwardly penetrated fixed link inside, and extends to mixing barrel inside, the utility model discloses motor rotating shaft drives bottom scattering rod, side scattering rod, primary mixing rod, secondary mixing rod and tertiary mixing rod to work together, realizes raw material scattering, additive addition and mixing synchronization and smooth operation, improves the efficiency and quality of whole premix process.

Description

Technical Field

[0001] This utility model belongs to the technical field of short fiber spinning production, specifically relating to a premixing device for short fiber spinning. Background Technology

[0002] In the field of short fiber spinning, traditional equipment has limited effectiveness in dispersing raw materials, especially for agglomerated materials, making it difficult to achieve sufficient dispersion. Undispersed raw materials easily clog screens, affecting subsequent mixing processes and leading to reduced production efficiency.

[0003] Traditional equipment often uses a one-time addition method for mixing additives and raw materials, which can easily lead to uneven additive distribution, local over- or under-addition, and affect product quality. Furthermore, static addition requires interrupting the mixing process, reducing production efficiency.

[0004] Moreover, traditional mixing equipment has a simple mixing structure and a limited number of mixing cycles, making it difficult to ensure the full integration of raw materials and additives. Uneven mixing can lead to unstable product performance and increase the scrap rate.

[0005] In addition, the structure and function of the various parts of the existing premixing equipment are not well coordinated, which makes it impossible to achieve efficient and continuous operation of processes such as raw material dispersal, additive addition and mixing, resulting in low efficiency and increased cost of the entire premixing process.

[0006] In conclusion, in order to improve the efficiency and quality of premixed materials in short fiber spinning production, an innovative premixing device is needed to overcome the shortcomings of existing technologies. Utility Model Content

[0007] The purpose of this invention is to provide a premixing device for short fiber spinning, which solves the problem that traditional short fiber spinning premixing devices mentioned in the background art have difficulty in fully dispersing agglomerated raw materials, and that the addition of additives is mostly done in a one-time manner, which easily leads to uneven distribution of additives.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a premixing device for short fiber spinning, comprising a hopper, a top cover at the lower end of the hopper, a mixing cylinder at the lower end of the top cover, a sieve cylinder fixedly connected at the center of the lower end of the top cover, the sieve cylinder being located inside the center of the upper end of the mixing cylinder, a liquid guide pipe extending forward through the lower side of the front end of the mixing cylinder, and a discharge pipe connected at the center of the lower end of the mixing cylinder.

[0009] Preferably, a fixing rod is fixedly connected inside the upper end of the hopper, a mixing motor is fixedly connected at the center of the upper end of the fixing rod, and a motor shaft is rotatably connected at the center of the lower end of the mixing motor. The motor shaft passes downward through the interior of the fixing rod and extends into the interior of the mixing cylinder.

[0010] Preferably, a plurality of trapezoidal bottom dispersing rods are fixedly connected to the upper side of the motor shaft, and trapezoidal side dispersing rods are fixedly connected to the upper outer side of each of the plurality of bottom dispersing rods, and the plurality of bottom dispersing rods and the plurality of side dispersing rods are rotatably connected inside the screen cylinder.

[0011] Preferably, the plurality of bottom dispersing rods and the plurality of side dispersing rods are respectively attached to the lower inner wall and the side inner wall of the screen cylinder, and the lower side of the screen cylinder is provided with a receiving plate arranged in an inverted cone shape, and the receiving plate is fixedly connected to the inner wall of the mixing cylinder.

[0012] Preferably, two mixing plates are provided on the lower side of the receiving plate, and a central guide hole is provided at the center of the receiving plate and the center of the lower mixing plate, and multiple outer guide holes are provided on the outer side of the upper mixing plate.

[0013] Preferably, the upper end of the mixing plate on the upper side is provided with multiple cylindrical primary mixing rods, and the upper end of the mixing plate on the lower side is provided with multiple arc-shaped secondary mixing rods, and the multiple primary mixing rods and the multiple secondary mixing rods are all fixedly connected to the outside of the motor shaft.

[0014] Preferably, a plurality of tertiary mixing rods are fixedly connected to the lower outer side of the motor shaft, and the plurality of tertiary mixing rods are all located below the two mixing plates and rotatably connected to the lower inner side of the mixing cylinder, and a connecting seat is sleeved on the lower end of the motor shaft.

[0015] Preferably, the connecting seat is connected to the inner wall of the mixing cylinder via a connecting rod, and the liquid guide tube is connected to the lower end of the connecting seat. The lower end of the motor shaft has a connecting pipe hole that extends downwards, and multiple primary mixing rods, multiple secondary mixing rods, and the connecting seat are all connected to the connecting pipe hole. Multiple spray holes are opened inside the upper ends of the multiple primary mixing rods and multiple secondary mixing rods.

[0016] Compared with the prior art, this utility model provides a premixing device for short fiber spinning, which has the following beneficial effects: 1. This utility model uses the rotation of the bottom dispersing rod and the side dispersing rod to drive the agglomerated raw material to rotate and move. The trapezoidal structure's inclined surface impacts and bounces the agglomerated raw material twice, improving the dispersing efficiency and success rate, avoiding screen blockage, and thus improving production efficiency.

[0017] 2. This utility model adopts a multi-stage addition and mixing method. The additives are added to the raw materials in stages through multiple spray holes opened at the upper end of the primary and secondary mixing rods. The rotation of the primary, secondary and tertiary mixing rods thoroughly stirs and mixes the raw materials and additives, thereby improving the uniformity of mixing and ensuring production quality.

[0018] 3. The additive of this utility model is dynamically delivered into the primary mixing rod and the secondary mixing rod through the liquid guide tube, connecting seat and connecting pipe hole, realizing dynamic continuous addition without interruption and waiting for mixing, which effectively improves production efficiency.

[0019] 4. The motor shaft of this utility model drives the bottom dispersing rod, side dispersing rod, primary mixing rod, secondary mixing rod and tertiary mixing rod to work together, realizing the synchronous and smooth operation of raw material dispersing, additive addition and mixing, thus improving the efficiency and quality of the entire premixing process. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the short fiber spinning premix device of this utility model.

[0021] Figure 2 This is a three-dimensional cross-sectional structural diagram of the short fiber spinning premix device of this utility model.

[0022] Figure 3 This is a schematic diagram of the connection structure of the mixing cylinder of this utility model.

[0023] Figure 4 This is a schematic diagram of the motor shaft connection structure of this utility model.

[0024] Figure 5 For the present utility model Figure 4 Enlarged diagram of point A in the middle.

[0025] In the diagram: 1. Hopper; 2. Top cover; 3. Mixing cylinder; 4. Screen cylinder; 5. Liquid guide pipe; 6. Discharge pipe; 7. Fixing rod; 8. Mixing motor; 9. Motor shaft; 10. Bottom dispersing rod; 11. Side dispersing rod; 12. Receiving plate; 13. Mixing plate; 14. Central guide hole; 15. Outer guide hole; 16. Primary mixing rod; 17. Secondary mixing rod; 18. Tertiary mixing rod; 19. Connecting seat; 20. Connecting pipe hole; 21. Spray hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides, for example Figures 1-5The device shown is a premixing apparatus for short fiber spinning, comprising a hopper 1, a cover 2 at the lower end of the hopper 1, a mixing cylinder 3 at the lower end of the cover 2, a screen cylinder 4 fixedly connected to the center of the lower end of the cover 2, and the screen cylinder 4 located inside the center of the upper end of the mixing cylinder 3. A liquid guide pipe 5 extends forward through the lower side of the front end of the mixing cylinder 3, and a discharge pipe 6 is connected to the center of the lower end of the mixing cylinder 3. In the short fiber spinning production process, the premixing apparatus mixes the raw materials and additives required for short fiber spinning production, thereby improving production efficiency and quality. The raw materials are introduced into the screen cylinder 4 through the hopper 1 for dispersing and then enter the mixing cylinder 3 through the mesh of the screen cylinder 4. The additives are introduced into the mixing cylinder 3 through the liquid guide pipe 5 and mixed with the raw materials entering the mixing cylinder 3. Finally, the mixed raw materials and additives are introduced into the next process for production through the discharge pipe 6.

[0028] Preferably, a fixing rod 7 is fixedly connected to the upper interior of the hopper 1, a mixing motor 8 is fixedly connected to the center of the upper end of the fixing rod 7, and a motor shaft 9 is rotatably connected to the center of the lower end of the mixing motor 8. The motor shaft 9 passes downward through the interior of the fixing rod 7 and extends into the interior of the mixing cylinder 3. Multiple trapezoidal bottom dispersing rods 10 are fixedly connected to the upper side of the motor shaft 9. Trapezoidal side dispersing rods 11 are fixedly connected to the upper exterior of each of the multiple bottom dispersing rods 10. The multiple bottom dispersing rods 10 and the multiple side dispersing rods 11 are rotatably connected inside the screen cylinder 4. The multiple bottom dispersing rods 10 and the multiple side dispersing rods 11 are respectively connected to the lower inner wall of the screen cylinder 4. Fitting against the inner side wall, the lower side of the screen cylinder 4 is provided with a receiving plate 12 in the shape of an inverted cone, and the receiving plate 12 is fixedly connected to the inner wall of the mixing cylinder 3. After the raw material is introduced into the screen cylinder 4, it will fall between multiple bottom dispersing rods 10. At this time, the mixing motor 8 drives multiple bottom dispersing rods 10 and multiple side dispersing rods 11 to rotate inside the screen cylinder 4 through the motor shaft 9. The raw material between the multiple bottom dispersing rods 10 is driven to rotate by the multiple bottom dispersing rods 10, and the clump of raw material is broken up by impact through the trapezoidal inclined surface. The broken raw material bounces up through the trapezoidal inclined surface and is fully dispersed. At the same time, the raw material moves outward under the action of centrifugal force.

[0029] Preferably, when the raw material moving outward moves between multiple side dispersing rods 11, the side dispersing rods 11 impact and disperse the raw material a second time through the trapezoidal inclined surface, and the dispersed raw material is bounced inward to fully disperse through the trapezoidal inclined surface, while the raw material that is not dispersed bounces back to the multiple bottom dispersing rods 10 for cyclic dispersing, so that the agglomerated raw material can be dispersed by two impacts to improve the dispersing efficiency and production efficiency, and the raw material that is not dispersed by two impacts can be cyclically dispersed to improve the dispersing success rate, and avoid the undispersed raw material from clogging the mesh of the screen cylinder 4. The dispersed raw material falls into the mixing cylinder 3 through the mesh of the screen cylinder 4, and is collected and gathered by the receiving plate 12 and introduced into the center of the mixing cylinder 3 for the mixing of additives.

[0030] Preferably, two mixing plates 13 are provided on the lower side of the receiving plate 12. A central guide hole 14 is provided at the center of both the receiving plate 12 and the lower mixing plate 13. Multiple outer guide holes 15 are provided on the outer side of the upper mixing plate 13. Multiple cylindrical primary mixing rods 16 are provided at the upper end of the upper mixing plate 13, and multiple arc-shaped secondary mixing rods 17 are provided at the upper end of the lower mixing plate 13. All primary and secondary mixing rods 16 are fixedly connected to the outside of the motor shaft 9. Multiple spray holes 21 are provided inside the upper end. The raw material that is dispersed and gathered in the center of the mixing cylinder 3 falls through the central guide hole 14 in the center of the receiving plate 12 to the upper end of the mixing plate 13 and then falls between multiple primary mixing rods 16. The multiple primary mixing rods 16 drive the raw material to rotate and spray the additive through the multiple spray holes 21 at the upper end to add and mix the additive to the raw material for the first time. At the same time, the raw material and additive move outward under the action of centrifugal force and finally fall through the multiple outer guide holes 15 to the upper end of the mixing plate 13 on the lower side.

[0031] Preferably, the raw materials falling onto the upper part of the lower mixing plate 13 are rotated by multiple arc-shaped secondary mixing rods 17. At the same time, the multiple secondary mixing rods 17 spray additives through multiple spray holes 21 at the upper end, adding and mixing the additives to the raw materials for the second time. Simultaneously, the raw materials and additives move inward under the pushing of the multiple secondary mixing rods 17 and enter the lower part of the mixing cylinder 3 through the central guide hole 14 at the center of the lower mixing plate 13. This allows the additives to be added and mixed twice, which can improve the uniformity of mixing of raw materials and additives, improve production quality, and improve the mixing efficiency of raw materials and additives, thereby improving production efficiency.

[0032] Preferably, a plurality of tertiary mixing rods 18 are fixedly connected to the lower side of the motor shaft 9, and the plurality of tertiary mixing rods 18 are located under the two mixing plates 13 and rotatably connected to the lower side of the mixing cylinder 3. The raw materials and additives entering the lower side of the mixing cylinder 3 are stirred and mixed for the third time by the plurality of tertiary mixing rods 18, ensuring that the raw materials and additives are fully and evenly mixed, thereby further improving the production quality.

[0033] Preferably, a connecting seat 19 is sleeved on the lower end of the motor shaft 9. The connecting seat 19 is connected to the inner wall of the mixing cylinder 3 through a connecting rod, and the liquid guide pipe 5 is connected to the lower end of the connecting seat 19. A connecting pipe hole 20 extends downward through the lower end of the motor shaft 9, and multiple primary mixing rods 16, multiple secondary mixing rods 17, and the connecting seat 19 are all connected to the connecting pipe hole 20. The additive is introduced into the interior of the connecting seat 19 through the liquid guide pipe 5, and then into the multiple primary mixing rods 16 and secondary mixing rods 17 through the connecting pipe hole 20 inside the lower end of the motor shaft 9. Finally, it is sprayed out through multiple spray holes 21, ensuring that the additive can be continuously added. This allows the premixing device to dynamically add additives to the short fiber spinning raw materials without interrupting the mixing process, thereby improving production efficiency.

[0034] Finally, it should be noted that the above description 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 foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A premixing device for short fiber spinning, characterized in that, Includes a hopper (1), the lower end of the hopper (1) is provided with a top cover (2), the lower end of the top cover (2) is provided with a mixing cylinder (3), a screen cylinder (4) is fixedly connected at the center of the lower end of the top cover (2), and the screen cylinder (4) is located inside the center of the upper end of the mixing cylinder (3). A liquid guide pipe (5) extends forward through the lower side of the front end of the mixing cylinder (3), and a discharge pipe (6) is connected at the center of the lower end of the mixing cylinder (3).

2. The premixing device for short fiber spinning according to claim 1, characterized in that: A fixed rod (7) is fixedly connected to the upper end of the hopper (1). A mixing motor (8) is fixedly connected to the center of the upper end of the fixed rod (7). A motor shaft (9) is rotatably connected to the center of the lower end of the mixing motor (8). The motor shaft (9) passes through the interior of the fixed rod (7) and extends into the interior of the mixing cylinder (3).

3. The premixing device for short fiber spinning according to claim 2, characterized in that: Multiple trapezoidal bottom dispersing rods (10) are fixedly connected to the upper side of the motor shaft (9). Each of the multiple bottom dispersing rods (10) is fixedly connected to a trapezoidal side dispersing rod (11) on the upper side. Both the multiple bottom dispersing rods (10) and the multiple side dispersing rods (11) are rotatably connected inside the screen cylinder (4).

4. A premixing device for short fiber spinning according to claim 3, characterized in that: Multiple bottom dispersing rods (10) and multiple side dispersing rods (11) are respectively attached to the lower inner wall and the side inner wall of the screen cylinder (4). The screen cylinder (4) is provided with a receiving plate (12) in the shape of an inverted cone on the lower side, and the receiving plate (12) is fixedly connected to the inner wall of the mixing cylinder (3).

5. A premixing device for short fiber spinning according to claim 4, characterized in that: Two mixing plates (13) are provided on the lower side of the receiving plate (12). A central guide hole (14) is provided at the center of the receiving plate (12) and the center of the mixing plate (13) on the lower side. Multiple outer guide holes (15) are provided on the outside of the mixing plate (13) on the upper side.

6. A premixing device for short fiber spinning according to claim 5, characterized in that: The upper end of the mixing plate (13) on the upper side is provided with multiple cylindrical primary mixing rods (16), and the upper end of the mixing plate (13) on the lower side is provided with multiple arc-shaped secondary mixing rods (17). The multiple primary mixing rods (16) and the multiple secondary mixing rods (17) are all fixedly connected to the outside of the motor shaft (9).

7. A premixing device for short fiber spinning according to claim 6, characterized in that: Multiple tertiary mixing rods (18) are fixedly connected to the lower side of the motor shaft (9), and the multiple tertiary mixing rods (18) are located on the lower side of the two mixing plates (13) and are rotatably connected to the lower side inside the mixing cylinder (3). A connecting seat (19) is sleeved on the lower end of the motor shaft (9).

8. A premixing device for short fiber spinning according to claim 7, characterized in that: The connecting seat (19) is connected to the inner wall of the mixing cylinder (3) through the connecting rod, and the liquid guide pipe (5) is connected to the lower end of the connecting seat (19). The lower end of the motor shaft (9) has a connecting pipe hole (20) that runs downward through it. Multiple primary mixing rods (16), multiple secondary mixing rods (17) and the connecting seat (19) are all connected to the connecting pipe hole (20). Multiple primary mixing rods (16) and multiple secondary mixing rods (17) have multiple spray holes (21) inside their upper ends.

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