Raw material stirring device for PBT spinning processing

By designing a turning material agitating assembly in the agitator device, using the opposite rotation of the spiral feed piece, the upper and lower raw materials inside the hopper are transported into the mixing barrel, thereby achieving the flip and full mixing of raw materials, solving the problem of low mixing efficiency of upper and lower raw materials in traditional mixers and improving the mixing efficiency.

CN222590322UActive Publication Date: 2025-03-11WUXI MANYAN NETWORK TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202421294945.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-07
Publication Date
2025-03-11
Estimated Expiration
2034-06-07

AI Technical Summary

Technical Problem

During the mixing process of PBT fiber raw materials in traditional vertical mixers, the mixing efficiency of the upper and lower layers of raw materials is low, resulting in insufficient mixing efficiency of adjacent layers when the raw materials roll up and down in the barrel.

Method used

A stirring device including a turning material agitating assembly is designed, the assembly consisting of a conveying unit and a transmission unit. The bottommost raw material inside the hopper is transported to the top of the stirring barrel through a screw feed piece on the second rotating shaft, and the upper raw material is transported into the stirring barrel through a screw feed piece on the first rotating shaft, so as to achieve the flip and full mixing of the raw materials.

Benefits of technology

Through the design of the flip-flop agitation assembly, the mixing efficiency of the upper and lower raw materials is improved, so that the raw materials can be mixed more fully during the stirring process. Compared with the structure of the traditional single screw conveyor sheet, the mixing efficiency is further improved.

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Abstract

The utility model discloses a raw material stirring device for PBT (Polybutylece Terephthalate) spinning processing, which relates to the technical field of stirring devices and comprises a stirring machine main body consisting of a stirring barrel and a hopper, and a material turning and stirring component. Through the arrangement of the material turning and stirring assembly, the bottommost layer of raw materials in the hopper can be driven through rotation of a spiral material conveying piece on a second rotating shaft and move upwards along a second material conveying barrel, and the upper layer of raw materials in the hopper can be driven through rotation of a spiral material conveying piece on a first rotating shaft and move upwards along a first material conveying barrel; the height of the top of the second conveying barrel is higher than that of the first conveying barrel, so that when the raw materials at the bottommost layer move upwards to the top of the second conveying barrel, the raw materials at the bottommost layer are located above the top of the first conveying barrel, namely, the raw materials at the bottommost layer can fall above the raw materials at the upper layer, and thus overturning of the raw materials at the upper layer and the lower layer is achieved; and the raw material mixing efficiency is further improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of stirring devices, in particular to a raw material stirring device for PBT spinning processing. Background Art

[0002] PBT fiber is the abbreviation of polybutylene terephthalate fiber. It is a linear polymer made by melt spinning after esterification of high-purity terephthalic acid (PTA) or dimethyl terephthalate (DMT) with 1,4-butanediol. It is a type of polyester fiber.

[0003] When producing PBT fiber, the pre-treated PBT base material and other additives need to be fully mixed according to the formula ratio. The vertical mixer is one of the commonly used mixing devices for PBT fiber raw materials. The working principle of the vertical mixer is to lift the raw materials from the bottom of the barrel from the center to the top through the rapid rotation of the screw, and then scatter them in an umbrella shape and return to the bottom. In this way, the raw materials roll up and down in the barrel and stir, so that a large amount of raw materials can be evenly mixed;

[0004] The mixing efficiency of traditional vertical mixers can be improved during operation. For example, when the raw materials are transported from the bottom to the top and then thrown into the bottom of the barrel, the upper and lower layers of the adjacent raw materials do not change much. That is, the raw materials originally at the bottom of the barrel are first transported to the top and fall to the bottom, while the raw materials at the bottom of the barrel that are at the upper layer relative to the raw materials at the bottom are then transported to the top and are still at the upper layer when they fall to the bottom. That is, the mixing efficiency between the upper and lower layers of raw materials is low.

[0005] In order to further improve the mixing efficiency of upper and lower layer raw materials, a raw material stirring device for PBT spinning processing is provided. Summary of the invention

[0006] The purpose of the utility model is to provide a raw material stirring device for PBT spinning processing in order to solve the above-mentioned background problems.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a raw material stirring device for PBT spinning processing, comprising a stirring machine body consisting of a stirring barrel and a hopper, wherein the hopper is fixed to one side of the bottom of the stirring barrel, and a material turning and stirring assembly penetrating the upper and lower ends of the stirring barrel is arranged inside the stirring barrel, wherein the material turning and stirring assembly is used to transport the raw material inside the hopper to the top of the stirring barrel and to throw the material out, thereby realizing the tumbling and stirring of the raw material;

[0008] The material turning and stirring assembly includes a conveying unit and a transmission unit;

[0009] The conveying unit is used to realize the transmission, tumbling and stirring of the raw materials, and the transmission unit is used to connect with an external driving component to realize the power drive of the conveying unit;

[0010] The conveying unit includes a first conveying cylinder, a second conveying cylinder, a first rotating shaft, a second rotating shaft, and a spiral conveying sheet;

[0011] The first feeding cylinder and the second feeding cylinder are parallel to each other and penetrate from the inside of the mixing barrel to the bottom of the mixing barrel and extend to the inside of the hopper;

[0012] The first rotating shaft and the second rotating shaft are respectively arranged inside the first feeding cylinder and the second feeding cylinder and pass through the bottom of the first feeding cylinder and the second feeding cylinder to the inside of the hopper. The second rotating shaft is fixed to the outside of the first rotating shaft and the second rotating shaft. The first rotating shaft and the second rotating shaft are rotated to drive the spiral feeding sheet to rotate, so as to transport the raw materials inside the hopper to the inside of the mixing barrel, so as to realize the throwing of the raw materials inside the mixing barrel.

[0013] The bottom horizontal height of the second rotating shaft is lower than the bottom horizontal height of the first rotating shaft. The spiral conveyor sheet on the second rotating shaft rotates to realize the transportation of the bottom layer of raw materials inside the hopper, and the spiral conveyor sheet on the first rotating shaft is used to transport the upper layer of raw materials inside the hopper.

[0014] As a further solution of the present invention: the top horizontal height of the first material conveying cylinder is lower than the top horizontal height of the second material conveying cylinder, and the bottom horizontal height of the first material conveying cylinder is higher than the bottom horizontal height of the second material conveying cylinder.

[0015] As a further solution of the utility model: the transmission unit includes a linkage gear and a transmission pulley;

[0016] The tops of the first rotating shaft and the second rotating shaft penetrate the top of the mixing barrel, and the first rotating shaft and the second rotating shaft are rotationally connected to the mixing barrel;

[0017] The two linkage gears are respectively fixed on the outside of the first rotating shaft and the second rotating shaft and mesh with each other. The transmission pulley is fixed on the top of the second rotating shaft. The transmission pulley is connected to the external motor through a belt and a driving pulley.

[0018] As a further solution of the utility model: the spiral directions of the two spiral feed sheets on the first rotating shaft and the second rotating shaft are in opposite states, and the top horizontal heights of the two spiral feed sheets match the top horizontal heights of the first feed cylinder and the second feed cylinder respectively.

[0019] As a further solution of the utility model: the mixer body also includes a circulating material pipe and a discharge pipe;

[0020] Two discharge pipes are provided, and the two discharge pipes and the circulating material pipe are distributed in a ring shape and fixed on the outside of the bottom of the mixing barrel and communicated with the inner cavity of the mixing barrel, and the circulating material pipe faces the inside of the hopper.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] By setting up a material turning and stirring component, the spiral feed sheet on the second shaft can rotate to drive the bottom layer of raw materials inside the hopper and move it up along the second feed cylinder. The spiral feed sheet on the first shaft can rotate to drive the upper layer of raw materials inside the hopper and move it up along the first feed cylinder. The top height of the second feed cylinder is higher than that of the first feed cylinder. In this way, when the bottom layer of raw materials moves to the top of the second feed cylinder, it is located above the top of the first feed cylinder, that is, the bottom layer of raw materials will fall above the upper layer of raw materials, thereby realizing the turning of the upper and lower layers of raw materials. Compared with the traditional single spiral conveying sheet structure, the raw material mixing efficiency is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 It is a structural sectional view of the utility model;

[0025] Figure 3 For the utility model Figure 2 Enlarged view of position A in the middle.

[0026] In the figure: 1. mixer body; 101. mixing barrel; 102. hopper; 103. circulating material pipe; 104. discharge pipe; 2. material turning and stirring assembly; 201. first feed cylinder; 202. second feed cylinder; 203. first rotating shaft; 204. second rotating shaft; 205. spiral feed sheet; 206. linkage gear; 207. transmission pulley. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figures 1 to 3 In the embodiment of the utility model, a raw material stirring device for PBT spinning processing includes a stirring machine body 1 composed of a stirring barrel 101 and a hopper 102. The hopper 102 is fixed to one side of the bottom of the stirring barrel 101. The stirring barrel 101 is provided with a material turning and stirring assembly 2 that runs through the upper and lower ends of the stirring barrel 101. The material turning and stirring assembly 2 is used to transport the raw materials in the hopper 102 to the top of the stirring barrel 101 and throw the materials out, so as to realize the tumbling and stirring of the raw materials.

[0029] The material turning and stirring assembly 2 includes a conveying unit and a transmission unit;

[0030] The conveying unit is used to realize the transmission, tumbling and stirring of the raw materials, and the transmission unit is used to connect with the external driving components to realize the power drive of the conveying unit;

[0031] The conveying unit includes a first conveying cylinder 201, a second conveying cylinder 202, a first rotating shaft 203, a second rotating shaft 204, and a spiral conveying sheet 205;

[0032] The first feeding cylinder 201 and the second feeding cylinder 202 are parallel to each other and penetrate from the inside of the mixing barrel 101 to the bottom of the mixing barrel 101 and extend to the inside of the hopper 102;

[0033] The first rotating shaft 203 and the second rotating shaft 204 are respectively arranged inside the first feeding cylinder 201 and the second feeding cylinder 202 and pass through the bottom of the first feeding cylinder 201 and the second feeding cylinder 202 to the inside of the hopper 102. The second rotating shaft 204 is fixed to the outside of the first rotating shaft 203 and the second rotating shaft 204. The first rotating shaft 203 and the second rotating shaft 204 rotate to drive the spiral feeding sheet 205 to rotate, so as to transport the raw materials inside the hopper 102 to the inside of the mixing barrel 101, so as to realize the throwing of the raw materials inside the mixing barrel 101.

[0034] The bottom level of the second rotating shaft 204 is lower than the bottom level of the first rotating shaft 203. The spiral conveying sheet 205 on the second rotating shaft 204 rotates to convey the bottom layer of raw materials in the hopper 102, and the spiral conveying sheet 205 on the first rotating shaft 203 is used to convey the upper layer of raw materials in the hopper 102.

[0035] The top level of the first delivery cylinder 201 is lower than the top level of the second delivery cylinder 202, and the bottom level of the first delivery cylinder 201 is higher than the bottom level of the second delivery cylinder 202;

[0036] The transmission unit includes a linkage gear 206 and a transmission pulley 207;

[0037] The tops of the first rotating shaft 203 and the second rotating shaft 204 penetrate the top of the mixing barrel 101, and the first rotating shaft 203 and the second rotating shaft 204 are rotatably connected to the mixing barrel 101;

[0038] The two linkage gears 206 are respectively fixed to the outside of the first rotating shaft 203 and the second rotating shaft 204 and mesh with each other. The transmission pulley 207 is fixed to the top of the second rotating shaft 204. The transmission pulley 207 is connected to the external motor through a belt and a driving pulley.

[0039] In this embodiment, it should be supplemented that: the driving pulley is fixedly connected to the output end of the external motor, the external motor output is fixed to the top of the outer side of the mixing barrel 101 through a bracket, and is connected to the driving pulley and the outer side of the transmission pulley 207 through a belt sleeve. When the external motor is started, the transmission pulley 207 can be driven to rotate, and the transmission pulley 207 drives the second rotating shaft 204 to rotate. The second rotating shaft 204 drives the first rotating shaft 203 to rotate through the transmission of two linkage gears 206, so that the two spiral feed sheets 205 can be synchronously rotated in opposite directions;

[0040] Among them, the spiral feed sheet 205 on the second rotating shaft 204 can rotate to drive the bottom layer of raw materials inside the hopper 102 and move it up along the second feed cylinder 202. The spiral feed sheet 205 on the first rotating shaft 203 can rotate to drive the upper layer of raw materials inside the hopper 102 and move it up along the first feed cylinder 201. The top height of the second feed cylinder 202 is higher than the height of the first feed cylinder 201. In this way, when the bottom layer of raw materials moves to the top of the second feed cylinder 202, it is located above the top of the first feed cylinder 201, that is, the bottom layer of raw materials will fall above the upper layer of raw materials, thereby realizing the flipping of the upper and lower layers of raw materials. Compared with the traditional single spiral conveying sheet structure, the raw material mixing efficiency is further improved.

[0041] Please refer to Figures 1 to 3 The spiral directions of the two spiral conveying plates 205 on the first rotating shaft 203 and the second rotating shaft 204 are opposite, and the top horizontal heights of the two spiral conveying plates 205 match the top horizontal heights of the first conveying cylinder 201 and the second conveying cylinder 202 respectively.

[0042] In this embodiment: since the rotation directions of the first rotating shaft 203 and the second rotating shaft 204 are in opposite states, the spiral directions of the two spiral conveying pieces 205 on the first rotating shaft 203 and the second rotating shaft 204 are in opposite states, when the two spiral conveying pieces 205 rotate synchronously in opposite directions, both are in a state of conveying the raw materials upward.

[0043] Please refer to Figures 1-2 The mixer body 1 also includes a circulating material pipe 103 and a discharge pipe 104;

[0044] Two discharge pipes 104 are provided. The two discharge pipes 104 and the circulating pipe 103 are distributed in a ring shape and fixed to the outside of the bottom of the mixing barrel 101 and communicated with the inner cavity of the mixing barrel 101 . The circulating pipe 103 faces the inside of the hopper 102 .

[0045] In this embodiment, it should be noted that both the discharge pipe 104 and the circulation pipe 103 are equipped with valve plates (this valve is a prior art and is not shown in the figure). The circulation pipe 103 allows the raw materials in the mixing barrel 101 to fall back into the hopper 102, and then the stirring assembly 2 is turned over to achieve secondary transportation and turning, so as to achieve full mixing of the raw materials.

[0046] The mixed raw materials can be discharged at different positions through the two discharge pipes 104.

[0047] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A raw material stirring device for PBT spinning processing, comprising a stirring machine body (1) consisting of a stirring barrel (101) and a hopper (102), wherein the hopper (102) is fixed to one side of the bottom of the stirring barrel (101), characterized in that: The mixing barrel (101) is provided with a material turning and stirring assembly (2) penetrating the upper and lower ends of the mixing barrel (101), and the material turning and stirring assembly (2) is used to transport the raw materials in the hopper (102) to the top of the mixing barrel (101) and to throw the materials out, thereby realizing tumbling and stirring of the raw materials; The material turning and stirring assembly (2) comprises a conveying unit and a transmission unit; The conveying unit is used to realize the transmission, tumbling and stirring of the raw materials, and the transmission unit is used to connect with an external driving component to realize the power drive of the conveying unit; The conveying unit comprises a first conveying cylinder (201), a second conveying cylinder (202), a first rotating shaft (203), a second rotating shaft (204), and a spiral conveying sheet (205); The first material delivery cylinder (201) and the second material delivery cylinder (202) are parallel to each other and penetrate from the inside of the stirring barrel (101) to the bottom of the stirring barrel (101) and extend to the inside of the hopper (102); The first rotating shaft (203) and the second rotating shaft (204) are respectively arranged inside the first feeding barrel (201) and the second feeding barrel (202) and pass through the bottom of the first feeding barrel (201) and the second feeding barrel (202) to the inside of the hopper (102); the second rotating shaft (204) is fixed to the outside of the first rotating shaft (203) and the second rotating shaft (204), and the spiral feeding sheet (205) is driven to rotate by the rotation of the first rotating shaft (203) and the second rotating shaft (204), so as to transport the raw materials inside the hopper (102) to the inside of the mixing barrel (101), so as to realize the throwing of the raw materials inside the mixing barrel (101); The bottom level of the second rotating shaft (204) is lower than the bottom level of the first rotating shaft (203). The spiral conveying piece (205) on the second rotating shaft (204) is rotated to convey the bottom layer of raw materials inside the hopper (102), and the spiral conveying piece (205) on the first rotating shaft (203) is used to convey the upper layer of raw materials inside the hopper (102).

2. A raw material stirring device for PBT spinning processing according to claim 1, characterized in that: The top level of the first material conveying cylinder (201) is lower than the top level of the second material conveying cylinder (202), and the bottom level of the first material conveying cylinder (201) is higher than the bottom level of the second material conveying cylinder (202).

3. A raw material stirring device for PBT spinning processing according to claim 1, characterized in that: The transmission unit comprises a linkage gear (206) and a transmission pulley (207); The tops of the first rotating shaft (203) and the second rotating shaft (204) penetrate through the top of the mixing barrel (101), and the first rotating shaft (203) and the second rotating shaft (204) are rotatably connected to the mixing barrel (101); The two linkage gears (206) are respectively fixed to the outside of the first rotating shaft (203) and the second rotating shaft (204) and mesh with each other. The transmission pulley (207) is fixed to the top of the second rotating shaft (204). The transmission pulley (207) is connected to the external motor through a belt and a driving pulley.

4. A raw material stirring device for PBT spinning processing according to claim 2, characterized in that: The spiral directions of the two spiral feed sheets (205) on the first rotating shaft (203) and the second rotating shaft (204) are opposite, and the top horizontal heights of the two spiral feed sheets (205) match the top horizontal heights of the first feed cylinder (201) and the second feed cylinder (202), respectively.

5. A raw material stirring device for PBT spinning processing according to claim 1, characterized in that: The mixer body (1) further comprises a circulating material pipe (103) and a discharge pipe (104); Two discharge pipes (104) are provided. The two discharge pipes (104) and the circulating material pipe (103) are distributed in a ring shape and fixed to the outside of the bottom of the mixing barrel (101) and communicate with the inner cavity of the mixing barrel (101). The circulating material pipe (103) faces the inside of the hopper (102).