Cooling device for preparing conductive thermoplastic polyurethane elastomer

Abstract

The utility model discloses a cooling device for preparing a conductive thermoplastic polyurethane elastomer, which comprises a water tank box, the whole water tank box is of a hollow and topless cuboid structure, and a feeding part and a discharging part are respectively formed at two ends of the water tank box; the cooling mechanism is composed of a cooling assembly and an anti-overflow assembly, the cooling assembly passes through the inner bottom end of the water tank box, the anti-overflow assembly is installed on the top of the outer side of the water tank box, a water source about to overflow out of the water tank box can be discharged, and the anti-overflow assembly and the cooling assembly do not make contact with each other; through the designed cooling mechanism, cooling liquid can be rapidly injected from the bottom, the conductive thermoplastic polyurethane elastomer is directly cooled, the time of heat conduction between new cooling liquid and heated liquid is shortened, the cooling efficiency is improved, meanwhile, the cooling mechanism can achieve integration of water injection and water drainage according to requirements, operation is convenient, and the cooling efficiency is improved. And the phenomenon of liquid overflow caused by excessive injected liquid can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of preparation of conductive thermoplastic polyurethane elastomer, and in particular relates to a cooling device for preparation of conductive thermoplastic polyurethane elastomer. Background Art

[0002] In recent decades, polymer materials have played a huge role in national economic construction and people's lives with their incomparable advantages over other materials such as light weight, low density and easy processing. They are widely used in automobiles, wires and cables, daily furniture, construction materials and other fields.

[0003] Polymer materials are good insulators. The volume resistivity of most polymer materials exceeds 1015Ω.cm, and can even reach 1020Ω.cm. Due to its excellent insulation performance, polymer materials have been widely used in the electronic, electrical, mechanical, chemical and other industries. Wire and cable sheaths, power tool housings and electrical equipment housings have fully exerted the insulation performance of polymer materials. As a high-performance engineering plastic material, polyurethane permanent antistatic masterbatch materials are widely used in various fields. Polyurethane permanent antistatic masterbatch is mainly used to develop and produce conductive thermoplastic polyurethane elastomer (TPU) materials to meet the great needs of the current electronic information industry, thereby enhancing the market competitiveness and development potential of enterprises. In the preparation process of conductive thermoplastic polyurethane elastomer, it is necessary to cool and shape it through a cooling device. After various components are added according to the formula through a weightless feeder, the extrusion speed of the screw is 150RPM, and the melt enters the water tank through the die head for cooling, and then is pelletized by a pelletizer.

[0004] In the existing cooling device, when cooling the conductive thermoplastic polyurethane elastomer after extrusion by the extruder, the internal cooling liquid will gradually increase in temperature as the processing time becomes longer, resulting in low subsequent cooling efficiency. The current treatment method is to add new liquid with a lower temperature from the top of the cooling device and discharge the heated liquid from the bottom, or add new liquid with a lower temperature from the bottom and then discharge the heated liquid from the top. However, this method has the following defects:

[0005] 1. When the injected liquid flow is greater than the discharged liquid, the liquid inside the cooling device will overflow;

[0006] 2. When new cooling liquid is injected at the top, it takes a long time to transfer the low temperature to the bottom cooling area, resulting in poor cooling effect;

[0007] 3. It takes a certain amount of time to cool down when adding water from a fixed point at the bottom or multiple points on the side, and there are inconveniences in operation during the later drainage.

[0008] In summary, the utility model provides a cooling device for preparing a conductive thermoplastic polyurethane elastomer. Utility Model Content

[0009] The utility model aims to provide a cooling device for preparing a conductive thermoplastic polyurethane elastomer, so as to solve the problems of poor cooling effect and inconvenient drainage proposed in the above-mentioned background technology.

[0010] To achieve the above purpose, the utility model provides the following technical solutions: a conductive thermoplastic polyurethane elastomer preparation cooling device, comprising

[0011] The water tank box is a hollow rectangular parallelepiped structure without a top, and the two ends of the water tank box form a feeding part and a discharging part respectively;

[0012] The cooling mechanism is composed of a cooling component and an anti-overflow component, wherein the cooling component passes through the inner bottom end of the water tank, and the anti-overflow component is installed on the outer top of the water tank, and can discharge the water source that is about to overflow the water tank, and the anti-overflow component and the cooling component do not contact each other;

[0013] The cooling component includes a water injection pipe, both ends of which penetrate to the outside of the water tank box and are respectively formed with a water inlet and a water outlet. The water injection pipe is located in the internal area of ​​the water tank box and has through holes equidistantly opened on the top surface. During cooling, cooling liquid with a lower external temperature is first injected through the water inlet and then injected into the water tank box through the through holes to achieve cooling. A one-way valve is also installed on the water outlet.

[0014] Preferably, a pressing roller 1 and a pressing roller 2 are respectively arranged inside the water tank box near the feeding part and the discharging part, and the through hole is located in the middle of the pressing roller 1 and the pressing roller 2.

[0015] Preferably, a plurality of drainage holes are provided on the top of one side of the sink box; the anti-overflow component includes a drainage auxiliary pipe with one end inserted into the drainage hole, the other end of the drainage auxiliary pipe extends toward the bottom end surface of the sink box, and the other end of the drainage auxiliary pipe is also connected to a drainage main pipe. In use, liquid overflowing from the top of the sink box passes through the drainage hole and is discharged from the drainage auxiliary pipe and the drainage main pipe.

[0016] Preferably, the main drainage pipe and the auxiliary drainage pipe are located between the water inlet and the water outlet, so as to facilitate the subsequent pipeline layout.

[0017] Preferably, a conveying roller is also provided in the discharge direction of the water tank box. During the cooling of the elastomer, the elastomer is passed through the bottom of pressing roller one and pressing roller two to ensure that the entire elastomer is immersed in the cooling liquid. During the discharge, it is pulled out from the top of the conveying roller. Therefore, the conveying roller is arranged above pressing roller one and pressing roller two.

[0018] Preferably, the inner wall of the water tank box is symmetrically provided with adjustment grooves, which are arranged near the discharge part, and an adjustment block is slidably arranged in the adjustment groove, and the end of the conveying roller is connected to the adjustment block.

[0019] Preferably, a screw hole connected to the adjustment groove is also provided on the top of the side of the water tank box, and a locking bolt is screwed into the screw hole. The locking bolt abuts against the adjustment block, thereby limiting the adjustment block. At the same time, in order to prevent liquid from being discharged from the locking bolt, the horizontal plane of the screw hole is higher than the horizontal plane of the drainage hole.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] Through the designed cooling mechanism, the cooling liquid can be quickly injected from the bottom and the conductive thermoplastic polyurethane elastomer can be directly cooled, thereby shortening the heat conduction time between the new cooling liquid and the heated liquid and improving the cooling efficiency. At the same time, the cooling mechanism can realize water injection and drainage in one according to needs, which is convenient for operation and can also avoid the phenomenon of liquid overflow caused by excessive injection of liquid. The overall structure of the mechanism is simple, easy to produce and process, and has high practicality and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 It is a rear view of the utility model;

[0024] Figure 3 For this utility model Figure 2 A magnified schematic diagram of area A in the middle.

[0025] In the figure:

[0026] 100, water tank box; 100a, adjustment tank; 100b, drainage hole; 101, pressing roller 1; 102, pressing roller 2; 103, conveying roller; 104, adjustment block; 105, locking bolt;

[0027] 200, water injection pipe; 200a, through hole; 200b, water inlet; 200c, water outlet; 201, one-way valve; 202, auxiliary drainage pipe; 203, main drainage pipe. DETAILED DESCRIPTION

[0028] 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.

[0029] See also Figures 1 to 3 The utility model provides a technical solution: a conductive thermoplastic polyurethane elastomer preparation cooling device, comprising

[0030] The water tank box 100 is a hollow rectangular parallelepiped structure without a top, and the two ends of the water tank box 100 form a feeding part and a discharging part respectively;

[0031] The cooling mechanism is composed of a cooling component and an anti-overflow component, wherein the cooling component passes through the inner bottom end of the water tank box 100, and the anti-overflow component is installed on the outer top of the water tank box 100, and can discharge the water source that is about to overflow the water tank box 100, and the anti-overflow component and the cooling component do not contact each other;

[0032] The cooling assembly includes a water injection pipe 200, both ends of which penetrate to the outside of the water tank box 100 and are respectively formed with a water inlet 200b and a water outlet 200c. The water injection pipe 200 is located in the internal area of ​​the water tank box 100 and has through holes 200a equidistantly opened on the top surface. During cooling, cooling liquid with a lower external temperature is first injected through the water inlet 200b and then injected into the water tank box 100 through the through holes 200a to achieve cooling. A one-way valve 201 is also installed on the water outlet 200c. When liquid cooling needs to be injected, the one-way valve 201 is closed. At this time, the through hole 200a on the water injection pipe 200 serves as a drainage structure for supplying water. When the liquid needs to be discharged, the water supply equipment connected to the water inlet 200b is first closed, and the pumping equipment connected to the water outlet 200c is started. At this time, the through hole 200a serves as a drainage structure for discharging water to achieve drainage.

[0033] In the present embodiment, preferably, a pressing roller 101 and a pressing roller 102 are respectively provided inside the water tank box 100 near the feed part and the discharge part. They can be connected by a fixed connection or a rotational connection. The through hole 200a is located in the middle position of the pressing roller 101 and the pressing roller 102, so as to achieve the shortest distance cooling of the elastic parts transmitted later, because in actual cooling, the elastomer will be preferentially placed in the middle position of the pressing roller 101 and the pressing roller 102.

[0034] In the present embodiment, preferably, a plurality of drainage holes 100b are provided on the top of one side of the sink box 100; the overflow prevention component includes a drainage auxiliary pipe 202 with one end inserted into the drainage hole 100b, the other end of the drainage auxiliary pipe 202 extends toward the bottom end surface of the sink box 100, and the other end of the drainage auxiliary pipe 202 is also connected to a drainage main pipe 203. In use, the liquid overflowing from the top of the sink box 100 passes through the drainage hole 100b and is discharged from the drainage auxiliary pipe 202 and the drainage main pipe 203.

[0035] In this embodiment, preferably, the main drainage pipe 203 and the auxiliary drainage pipe 202 are located between the water inlet 200b and the water outlet 200c, so as to facilitate the subsequent pipeline layout.

[0036] In the present embodiment, preferably, a conveying roller 103 is further provided in the discharge direction of the water tank box 100, which can be connected in a fixed manner or in a rotating manner. During the cooling of the elastomer, the elastomer is passed through the bottom of pressing roller 101 and pressing roller 2 102 to ensure that the entire elastomer is immersed in the cooling liquid. During the discharge, it is pulled out from the top of the conveying roller 103. Therefore, the conveying roller 103 is arranged above pressing roller 101 and pressing roller 2 102.

[0037] In this embodiment, preferably, the inner wall of the water tank box 100 is symmetrically provided with adjustment grooves 100a, which are arranged near the discharge direction, and an adjustment block 104 is slidably arranged in the adjustment groove 100a, and the end of the conveying roller 103 is connected to the adjustment block 104.

[0038] In this embodiment, preferably, a screw hole connected to the adjustment groove 100a is also opened on the top of the side of the sink box 100, and a locking bolt 105 is screwed into the screw hole. The locking bolt 105 is against the adjustment block 104, thereby limiting the adjustment block 104. At the same time, in order to prevent liquid from being discharged from the locking bolt 105, the horizontal plane of the screw hole is higher than the horizontal plane of the drain hole 100b.

[0039] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A conductive thermoplastic polyurethane elastomer cooling device, characterized in that: include The water tank box (100) is a hollow rectangular parallelepiped structure as a whole, and the two ends of the water tank box (100) respectively form a feeding part and a discharging part; The cooling mechanism is composed of a cooling component and an anti-overflow component, wherein the cooling component passes through the inner bottom end of the water tank box (100), and the anti-overflow component is installed on the outer top end of the water tank box (100), and the anti-overflow component and the cooling component do not contact each other; The cooling assembly comprises a water injection pipe (200), both ends of which penetrate the outside of the water tank box (100) and respectively form a water inlet portion (200b) and a water outlet portion (200c), and the top end surface of the water injection pipe (200) in the internal area of ​​the water tank box (100) is provided with through holes (200a) at equal intervals, and a one-way valve (201) is also installed on the water outlet portion (200c).

2. A cooling device for preparing a conductive thermoplastic polyurethane elastomer according to claim 1, characterized in that: A pressing roller 1 (101) and a pressing roller 2 (102) are respectively arranged inside the water tank box (100) near the feeding part and the discharging part, and the through hole (200a) is located in the middle of the pressing roller 1 (101) and the pressing roller 2 (102).

3. A cooling device for preparing a conductive thermoplastic polyurethane elastomer according to claim 2, characterized in that: A plurality of drainage holes (100b) are provided on the top of one side of the water tank box (100); the anti-overflow component comprises a drainage auxiliary pipe (202) with one end inserted into the drainage hole (100b), the other end of the drainage auxiliary pipe (202) extending toward the bottom end surface of the water tank box (100), and the other end of the drainage auxiliary pipe (202) is also connected to a drainage main pipe (203).

4. A cooling device for preparing a conductive thermoplastic polyurethane elastomer according to claim 3, characterized in that: The main drainage pipe (203) and the auxiliary drainage pipe (202) are located between the water inlet (200b) and the water outlet (200c).

5. The cooling device for preparing a conductive thermoplastic polyurethane elastomer according to claim 3, characterized in that: A conveying roller (103) is also provided in the discharge direction of the water tank box (100), and the conveying roller (103) is arranged above the first pressing roller (101) and the second pressing roller (102).

6. A cooling device for preparing a conductive thermoplastic polyurethane elastomer according to claim 5, characterized in that: The inner wall of the water tank box (100) is symmetrically provided with adjustment grooves (100a), the adjustment grooves (100a) being arranged close to the discharge direction, an adjustment block (104) being slidably arranged in the adjustment grooves (100a), and the end of the conveying roller (103) is connected to the adjustment block (104).

7. A cooling device for preparing a conductive thermoplastic polyurethane elastomer according to claim 6, characterized in that: The top of the side of the water tank box (100) is also provided with a screw hole connected to the adjustment groove (100a), a locking bolt (105) is screwed into the screw hole, the locking bolt (105) abuts against the adjustment block (104), and the horizontal plane of the screw hole is higher than the horizontal plane of the drainage hole (100b).

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