PVC (polyvinyl chloride) granulating device

Abstract

The utility model discloses a PVC (polyvinyl chloride) granulating device which comprises a base, a mixing and conveying mechanism and a driving mechanism, and the mixing and conveying mechanism and the driving mechanism are both mounted on the base; the mixing and conveying mechanism comprises a feeding assembly and a mixing assembly; one end of the mixing assembly is connected with the output end of the driving mechanism; the feeding assembly is arranged on the top side of the mixing assembly, and an output end pipeline of the feeding assembly is connected with the mixing assembly; the mixing assembly comprises a heating unit, a conveying pipeline and a screw rod, the conveying pipeline is arranged in the heating unit, the screw rod is cooperatively installed in the conveying pipeline in the length extension direction of the conveying pipeline, and one end of the screw rod is connected to the output end of the driving mechanism; the mixing assembly further comprises a buffer assembly, the buffer assembly is installed on the top side surface of the base, and one end of the buffer assembly is connected to the outer surface of the heating unit. The buffer assembly can buffer the vibration of the mixing assembly, so that the damage of the vibration to the heating unit, the conveying pipeline and the screw rod is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to pelletizing equipment technical field especially relates to a PVC pelletizing device. BACKGROUND

[0002] PVC pelletizing equipment is a kind of equipment specially used for processing PVC plastic into granules. This kind of equipment usually includes key components such as extruder, heating device, temperature measuring device, pelletizing device, etc., aiming at processing PVC plastic into round cake-shaped, pore-free granules, which can be directly used without drying. PVC pelletizing equipment considers the characteristics and processing requirements of plastic, can effectively regenerate and utilize waste plastic, produce granules with regeneration value, and solve the problems of many pores, easy glue spraying and low yield encountered in wet material and water-containing pelletizing process. PVC pelletizing equipment also supports the selection of various dies and screws, meets the needs of investors of different scales, and is an ideal choice for investment in the regeneration industry. Through these devices, PVC plastic can be effectively processed into high-quality granules, which not only improves resource utilization efficiency but also reduces production cost, and has important significance for environmental protection and resource recycling.

[0003] The mixing and conveying device in the existing PVC pelletizing equipment is usually installed on the rack by hard connection to ensure stable installation of the mixing and conveying device. However, during the operation of the PVC pelletizing equipment, the rotation of the screw and the input of the material by the feeding device under the drive of the motor will cause vibration of the mixing and conveying device. The hard connection of the rack cannot buffer this part of vibration, so that the screw and other components are prone to reduced cooperation or even damage during vibration, affecting the normal operation of the equipment. SUMMARY

[0004] Therefore, it is necessary to provide a PVC pelletizing device to solve the technical problem of lack of buffering structure in the mixing and conveying mechanism of the existing PVC pelletizing equipment.

[0005] A PVC pelletizing device includes a base, a mixing and conveying mechanism and a driving mechanism. The mixing and conveying mechanism and the driving mechanism are both installed on the base. The driving mechanism is arranged at one end of the base, one end of the mixing and conveying mechanism is connected to the output end of the driving mechanism, and the other end of the mixing and conveying mechanism extends along the length direction of the base by a preset distance.

[0006] The mixing and conveying mechanism includes a feeding assembly and a mixing assembly. The mixing assembly is arranged on the top side surface of the base along the length direction of the base, and one end of the mixing assembly is connected to the output end of the driving mechanism. The feeding assembly is arranged on the top side of the mixing assembly, and the output end of the feeding assembly is connected to the mixing assembly by pipeline.

[0007] The mixing assembly comprises a heating unit, a conveying pipe and a screw rod. The heating unit is installed on the top side of the base. The conveying pipe is arranged inside the heating unit. The screw rod is installed in the conveying pipe along the length direction of the conveying pipe. One end of the screw rod is connected to the output end of the driving mechanism.

[0008] The mixing assembly further comprises a buffer assembly. The buffer assembly is installed on the top side of the base. One end of the buffer assembly is connected to the outer surface of the heating unit.

[0009] In one embodiment, the feeding assembly comprises a plurality of storage tanks and a plurality of stirring units. The storage tanks are arranged on the top side of the mixing assembly. The output end of each storage tank penetrates the heating unit and is connected to the inner wall of the conveying pipe. The stirring units are arranged on the top of the storage tanks and extend into the storage tanks.

[0010] In one embodiment, each stirring unit is driven by a motor and a speed reducer.

[0011] In one embodiment, each stirring unit is manually driven by a handle, a connecting rod and a stirring unit.

[0012] In one embodiment, the buffer assembly comprises a plurality of buffer cylinders. The buffer cylinders are arranged on both sides of the heating unit. The output shaft of each buffer cylinder is connected to the outer wall surface of the heating unit.

[0013] In one embodiment, the driving mechanism comprises a driving motor and a transmission structure. The driving motor and the transmission structure are arranged on the top side of the base. The driving motor and the transmission structure are sequentially connected to the screw rod.

[0014] In one embodiment, the transmission structure is a speed reducer.

[0015] In one embodiment, the mixing assembly further comprises an exhaust structure. The exhaust structure is arranged at both ends of the conveying pipe and is connected to the inside of the conveying pipe.

[0016] In one embodiment, the exhaust structure comprises a first exhaust structure and a second exhaust structure. The first exhaust structure is arranged at one end of the conveying pipe facing the driving mechanism. The first exhaust structure is connected to the end of the conveying pipe. The screw rod penetrates the first exhaust structure and is connected to the driving mechanism. The second exhaust structure is arranged on the outer wall surface of the heating unit away from the driving mechanism. The second exhaust structure penetrates the heating unit and is connected to the inside of the conveying pipe.

[0017] In one of the embodiments, the first exhaust structure is in a cylindrical structure, the first exhaust structure is sleeved outside the end of the screw, and one end of the first exhaust structure is connected to the driving mechanism, and the other end of the first exhaust structure is connected to the end of the conveying pipeline.

[0018] In one of the embodiments, the side wall of the first exhaust structure is provided with a plurality of exhaust holes, and each exhaust hole penetrates the side wall of the first exhaust structure.

[0019] In one of the embodiments, the second exhaust structure is in a connecting pipeline, one end of the second exhaust structure is communicated to the inside of the conveying pipeline, and the other end of the second exhaust structure is connected to the exhaust pump.

[0020] The PVC granulation device is provided with a feeding assembly, a mixing assembly, a cutting assembly, and a driving mechanism. The feeding assembly is installed on the top side of the base, and the output end of the feeding assembly is connected to the input end of the mixing assembly. The mixing assembly includes a heating unit, a conveying pipeline, and a screw. The heating unit is installed on the top side of the base, the conveying pipeline is arranged in the heating unit, and the screw is installed in the conveying pipeline in a matching manner along the length direction of the conveying pipeline. One end of the screw is connected to the output end of the driving mechanism, so that the driving mechanism can drive the screw to rotate relative to the conveying pipeline to realize the axial mixing and conveying of the material by the mixing assembly. The mixing assembly further includes a buffer assembly installed on the top side surface of the base, and one end of the buffer assembly is connected to the outer surface of the heating unit. During the operation of the PVC granulation device, the buffer assembly can buffer the vibration of the mixing assembly to reduce the damage of the vibration to the heating unit, the conveying pipeline, and the screw, thereby prolonging the service life of the equipment, reducing the maintenance frequency, and further reducing the equipment maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 FIG. 1 is a structural schematic view of the PVC granulation device according to one embodiment;

[0022] Figure 2 FIG. 2 is another structural schematic view of the PVC granulation device according to one embodiment;

[0023] Figure 3 FIG. 3 is a sectional structural schematic view of the A-A part shown in the embodiment; Figure 2

[0024] FIG. 4 is an enlarged structural schematic view of the M part shown in the embodiment; Figure 4 Figure 3 FIG. 5 is an enlarged structural schematic view of the N part shown in the embodiment.

[0025] Figure 5 Figure 3 DETAILED DESCRIPTION ​​​

[0026] In order to make the above objectives, characteristics and advantages of the present application more apparent, concrete embodiments of the present application will be described in detail below with reference to the drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of ways beyond the specific details set forth herein without departing from the scope of the present application. It should be noted that the present application is not limited to the specific embodiments described herein and that the specific embodiments are presented for purposes of example and illustration only.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be the first and second features directly contact, or the first and second features indirectly contact through intermediate media. Moreover, the first feature is "on", "above" and "on" the second feature can be the first feature is directly above or obliquely above the second feature, or just indicates that the first feature is higher than the second feature in horizontal height. The first feature is "under", "below" and "under" the second feature can be the first feature is directly below or obliquely below the second feature, or just indicates that the first feature is less than the second feature in horizontal height.

[0031] It should be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar terms as used herein are for purposes of description only and are not intended to be limiting.

[0032] Please refer to Figures 1 to 5The utility model discloses a kind of PVC granulating device 10, the PVC granulating device 10 includes base 100, mixing conveying mechanism 200 and drive mechanism 300, mixing conveying mechanism 200 and drive mechanism 300 are installed in base 100, wherein, drive mechanism 300 is arranged at one end of base 100, one end of mixing conveying mechanism 200 is connected to the output end of drive mechanism 300, another end of mixing conveying mechanism 200 extends along the length direction of base 100 by preset distance, in actual application, the output end of mixing conveying mechanism 200 can be cooperatively connected with preset pelletizing mechanism to complete PVC granulation production. Mixing conveying mechanism 200 includes feeding assembly 210 and mixing assembly 220, mixing assembly 220 is arranged on the top side surface of base 100 along the length direction of base 100, and one end of mixing assembly 220 is connected to the output end of drive mechanism 300;Feeding assembly 210 is arranged on the top side of mixing assembly 220, and the output end of feeding assembly 210 is connected with mixing assembly 220, so that liquid material in feeding assembly 210 can be input into mixing assembly 220 through the output end of feeding assembly 210 and be fully mixed with main raw material polyvinyl chloride resin powder, and then subsequent mixing and conveying and pelletizing process are completed through pelletizing structure, to complete PVC granulation production process. Specifically, mixing assembly 220 includes heating unit 221, conveying pipeline 222 and screw (not shown), heating unit 221 is installed on the top side of base 100, conveying pipeline 222 is arranged inside heating unit 221, screw is cooperatively installed inside conveying pipeline 222 along the length extension direction of conveying pipeline 222, and one end of screw is connected to the output end of drive mechanism 300, so that drive mechanism 300 can drive screw to rotate relative to conveying pipeline 222, to realize axial mixing and conveying of material by mixing assembly 220. Mixing assembly 220 also includes buffer assembly, buffer assembly is installed on the top side surface of base 100, one end of buffer assembly is connected to the outer surface of heating unit 221, in the running process of PVC granulating device 10, buffer assembly can buffer the vibration of mixing assembly 220, to reduce the damage of vibration to heating unit 221, conveying pipeline 222 and screw, thereby prolong the service life of equipment, reduce maintenance frequency, and then reduce equipment maintenance cost.

[0033] Further, the feeding assembly 210 comprises a plurality of storage tanks 211 and a plurality of stirring units 212. The output end of each storage tank 211 penetrates the heating unit 221 and is connected to the inner wall of the conveying pipe 222. Each stirring unit 212 is arranged on the top of the corresponding storage tank 211 and extends into the storage tank 211, so that each stirring unit 212 can stir the material in the corresponding storage tank 211. In this embodiment, each stirring unit 212 is driven by an electric motor and a speed reducer to stir the material. In this embodiment, each stirring unit 212 can also be manually driven by a driving handle and a connecting rod structure to stir the material.

[0034] Further, the buffer assembly comprises a plurality of buffer cylinders 224. Each buffer cylinder 224 is arranged on the top surface of the base 100 and is connected to the outer wall surface of the heating unit 221. When the heating unit 221 vibrates, each buffer cylinder 224 can buffer and support the heating unit 221, the conveying pipe 222 and the screw inside the conveying pipe 222, thereby reducing the influence of vibration on the heating unit 221, the conveying pipe 222 and the screw, reducing mechanical impact, and prolonging the service life of the equipment.

[0035] Further, the driving mechanism 300 comprises a driving motor 310 and a transmission mechanism 320. The driving motor 310 and the transmission mechanism 320 are arranged on the top surface of the base 100 and are sequentially connected to the screw, so that the driving motor 310 can drive the screw to rotate relative to the conveying pipe 222 through the transmission mechanism 320, thereby axially mixing and conveying the material in the conveying pipe 222. In this embodiment, the transmission mechanism 320 is a speed reducer, which can increase the torque of the screw and strengthen the mixing and conveying strength of the screw.

[0036] Further, the mixing assembly 220 further comprises an exhaust structure arranged on both ends of the conveying pipe 222 and connected to the inside of the conveying pipe 222, so that the steam generated by the material in the conveying pipe 222 can be discharged to the outside of the equipment through the exhaust structure. Specifically, the exhaust structure comprises a first exhaust structure 225 and a second exhaust structure 226. The first exhaust structure 225 is arranged on the end of the conveying pipe 222 facing the driving mechanism 300 and is connected to the end of the conveying pipe 222. The screw penetrates the first exhaust structure 225 and is connected to the driving mechanism 300. The second exhaust structure 226 is arranged on the outer wall surface of the end of the heating unit 221 away from the driving mechanism 300 and penetrates the heating unit 221 and is connected to the inside of the conveying pipe 222.

[0037] Further, the first exhaust structure 225 is provided in a cylindrical structure, the first exhaust structure 225 is sleeved outside the end of the screw, and one end of the first exhaust structure 225 is connected to the driving mechanism 300, and the other end of the first exhaust structure 225 is connected to the end of the conveying pipeline 222. Specifically, the side wall of the first exhaust structure 225 is provided with a plurality of exhaust holes a, each exhaust hole a penetrates the side wall of the first exhaust structure 225, so that the inside and outside of the first exhaust structure 225 are communicated, and the whole conveyed by the conveying pipeline 222 to the first exhaust structure 225 can be discharged to the outside of the equipment through the plurality of exhaust holes a.

[0038] Further, the second exhaust structure 226 is provided as a connecting pipeline, one end of the second exhaust structure 226 is communicated to the inside of the conveying pipeline 222, and the other end of the second exhaust structure 226 is connected to the exhaust pump to exhaust the steam in the conveying pipeline 222 to the outside of the equipment.

[0039] In summary, the PVC granulating device disclosed by the utility model completes the PVC granulating production process through the liquid feeding of the output end of the feeding assembly, and then completes the subsequent mixing, conveying and cutting processes through the cutting structure. The mixing assembly includes a heating unit, a conveying pipeline and a screw. The heating unit is installed on the top side of the base, the conveying pipeline is arranged inside the heating unit, and the screw is installed in the conveying pipeline in cooperation along the length extension direction of the conveying pipeline. One end of the screw is connected to the output end of the driving mechanism, so that the driving mechanism can drive the screw to rotate relative to the conveying pipeline to realize the axial mixing and conveying of the material by the mixing assembly. The mixing assembly further includes a buffer assembly installed on the top surface of the base. One end of the buffer assembly is connected to the outer surface of the heating unit. During the operation of the PVC granulating device, the buffer assembly can buffer the vibration of the mixing assembly to reduce the damage of the vibration to the heating unit, the conveying pipeline and the screw, thereby prolonging the service life of the equipment, reducing the maintenance frequency, and further reducing the equipment maintenance cost.

[0040] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the present disclosure.

[0041] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the concept of the utility model, several modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A PVC granulation device, characterized in that, include: The system includes a base, a mixing conveying mechanism, and a driving mechanism. The mixing conveying mechanism and the driving mechanism are both mounted on the base. The driving mechanism is located at one end of the base. One end of the mixing conveying mechanism is connected to the output end of the driving mechanism. The other end of the mixing conveying mechanism extends a predetermined distance along the length of the base. The mixing and conveying mechanism includes a feeding component and a mixing component. The mixing component is disposed on the top side surface of the base along the length direction of the base, and one end of the mixing component is connected to the output end of the driving mechanism. The feeding component is disposed on the top side of the mixing component, and the output end of the feeding component is connected to the mixing component via a pipe. The mixing assembly includes a heating unit, a conveying pipe, and a screw. The heating unit is installed on the top side of the base, the conveying pipe is disposed inside the heating unit, and the screw is fitted inside the conveying pipe along the length of the conveying pipe. One end of the screw is connected to the output end of the drive mechanism. The mixing assembly also includes a buffer assembly, which is mounted on the top side surface of the base, and one end of the buffer assembly is connected to the outer surface of the heating unit.

2. The PVC granulation apparatus according to claim 1, characterized in that, The feeding assembly includes several storage tanks and several stirring units. The storage tanks are disposed on the top side of the mixing assembly. The output end of each storage tank passes through the heating unit and is connected to the inside of the side wall of the conveying pipe. The stirring units are respectively disposed on the top of the storage tanks and extend into the inside of the storage tanks.

3. The PVC granulation apparatus according to claim 2, characterized in that, The buffer assembly includes several buffer cylinders, which are respectively disposed on both sides of the heating unit. Each buffer cylinder is installed on the top side surface of the base, and the output shaft of each buffer cylinder is connected to the outer wall surface on both sides of the heating unit.

4. The PVC granulation apparatus according to claim 3, characterized in that, The driving mechanism includes a drive motor and a transmission structure. The drive motor and the transmission structure are both disposed on the top side surface of the base. The drive motor and the transmission structure are sequentially connected to the screw.

5. The PVC granulation apparatus according to claim 4, characterized in that, The transmission structure is configured as a speed reducer.

6. The PVC granulation apparatus according to claim 4, characterized in that, The mixing component also includes an exhaust structure disposed at both ends of the delivery pipe and connected to the interior of the delivery pipe.

7. The PVC granulation apparatus according to claim 6, characterized in that, The exhaust structure includes a first exhaust structure and a second exhaust structure. The first exhaust structure is disposed at one end of the conveying pipe facing the driving mechanism and is connected to the end of the conveying pipe. The screw passes through the first exhaust structure and is connected to the driving mechanism. The second exhaust structure is disposed on the outer wall surface of the heating unit at the end facing away from the driving mechanism and passes through the heating unit and communicates with the interior of the conveying pipe.

8. The PVC granulation apparatus according to claim 7, characterized in that, The first exhaust structure is configured as a cylindrical structure, and the first exhaust structure is sleeved on the outside of the end of the screw. One end of the first exhaust structure is connected to the drive mechanism, and the other end of the first exhaust structure is connected to the end of the conveying pipe.

9. The PVC granulation apparatus according to claim 8, characterized in that, The sidewall of the first exhaust structure is provided with a plurality of exhaust holes, each of which penetrates the sidewall of the first exhaust structure.

10. The PVC granulation apparatus according to claim 9, characterized in that, The second exhaust structure is configured as a connecting pipe, with one end of the second exhaust structure connected to the inside of the delivery pipe, and the other end of the second exhaust structure connected to a suitable exhaust pump.

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