PVC raw material mixing device

Abstract

The utility model relates to the technical field of mixing devices, in particular to a PVC (polyvinyl chloride) raw material mixing device. The PVC raw material mixing device comprises a base, a mixing barrel, a funnel, a blanking hopper, a protective shell, a servo motor, a side wall scraper blade, a conical scraper blade, a first connecting plate, a second connecting plate and the like, a hopper is arranged at the bottom of the mixing barrel, a protective shell is arranged on the outer side of the mixing barrel, a discharging hopper is arranged at the top of the protective shell, a servo motor is arranged at the bottom of the protective shell, a gear driving mechanism is connected to an output shaft of the servo motor, and a first connecting plate is arranged on the gear driving mechanism. Through the arrangement of the side wall scraping plate and the conical scraping plate, materials attached to the inner wall of the material mixing barrel and the bottom funnel area can be continuously scraped in the mixing process, material residues are effectively prevented, thorough discharging is ensured, and the influence on the next batch of mixed raw materials is avoided.

Description

Technical Field

[0001] This utility model relates to the field of mixing device technology, and in particular to a PVC raw material mixing device. Background Technology

[0002] PVC raw material refers to polyvinyl chloride resin, which is a commonly used plastic raw material. PVC raw material is produced by the polymerization reaction of ethylene and chlorine. It has good insulation properties, corrosion resistance and processability. PVC raw material can be modified by adding different additives to meet the needs of various specific industrial and consumer product applications. When using PVC raw material to make products, due to the many auxiliary components and complex state, the main and auxiliary raw materials of PVC need to be mixed at high speed before production to facilitate the subsequent processing into products.

[0003] When existing PVC raw material mixing devices are used for mixing raw materials, some materials tend to adhere to the inner wall of the mixing device, which affects the next use of the device. Utility Model Content

[0004] In order to overcome the shortcomings of existing PVC raw material mixing devices, in which some materials are easily adsorbed on the inner wall of the equipment during the mixing process and are difficult to completely remove during discharge, resulting in residual raw materials affecting the mixing effect and product quality of the next batch, this utility model can provide a PVC raw material mixing device.

[0005] The technical solution of this utility model is as follows: a PVC raw material mixing device, comprising a base, a mixing cylinder, a funnel, a discharge hopper, a protective shell, a servo motor, a side wall scraper, a conical scraper, a first connecting plate, a second connecting plate, a rotating shaft, and stirring rods. The mixing cylinder is located at the top of the base, and the funnel is located at the bottom of the mixing cylinder. A protective shell is located on the outside of the mixing cylinder, and the discharge hopper is located at the top of the protective shell. A servo motor is located at the bottom of the protective shell, and a gear drive mechanism is connected to the output shaft of the servo motor. A first connecting plate is located on the gear drive mechanism, and a rotating shaft is located at the bottom of the first connecting plate. Several stirring rods are located on the outside of the rotating shaft, and a second connecting plate is located at the bottom of the rotating shaft. A side wall scraper is located between the first connecting plate and the second connecting plate, and a conical scraper is located at the bottom of the side wall scraper. The conical scraper fits into the funnel, and the side wall scraper fits into the mixing cylinder.

[0006] In one embodiment, the gear drive mechanism includes a drive gear and a driven gear. The drive gear is connected to the output shaft of the servo motor. An annular slide rail is provided on the inner sidewall of the left part of the protective shell. The driven gear is rotatably connected to the annular slide rail. The drive gear and the driven gear mesh with each other.

[0007] In one embodiment, a helical rod is also included, with the helical rod located at the bottom of the shaft.

[0008] In one embodiment, a bottom cover is also included, with the bottom of the funnel threadedly connected to the bottom cover.

[0009] In one embodiment, the opening of the hopper is designed to be flared and has an inclined guiding surface.

[0010] In one embodiment, both the sidewall scraper and the conical scraper are made of polyurethane material.

[0011] Beneficial effects: By setting up side wall scrapers and conical scrapers, this utility model can continuously scrape off the material adhering to the inner wall of the mixing cylinder and the bottom funnel area during the mixing process, effectively preventing material residue, ensuring thorough discharge, and avoiding impact on the next batch of mixed raw materials. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a cross-sectional view of the mixing cylinder of this utility model.

[0014] Figure 3 This is a schematic diagram of the servo motor, drive gear, and driven gear of this utility model.

[0015] Figure 4 This is a schematic diagram of the side wall scraper and conical scraper of this utility model.

[0016] The markings in the diagram are as follows: 1-base, 2-mixing cylinder, 201-funnel, 202-feeding hopper, 203-bottom cover, 3-protective shell, 4-servo motor, 5-drive gear, 6-driven gear, 7-side wall scraper, 701-conical scraper, 8-first connecting plate, 801-second connecting plate, 9-spiral rod, 10-rotating shaft, 11-stirring rod. Detailed Implementation

[0017] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0018] A PVC raw material mixing device, such as Figures 1-4As shown, the system includes a base 1, a mixing cylinder 2, a funnel 201, a discharge hopper 202, a protective shell 3, a servo motor 4, a side wall scraper 7, a conical scraper 701, a first connecting plate 8, a second connecting plate 801, a rotating shaft 10, and a stirring rod 11. The mixing cylinder 2 is located at the top of the base 1, and the funnel 201 is located at the bottom of the mixing cylinder 2. A protective shell 3 is located on the outside of the mixing cylinder 2, and the discharge hopper 202 is located at the top of the protective shell 3. The opening of the discharge hopper 202 is designed to be flared and has an inclined guiding surface to facilitate the smooth flow of raw materials into the mixing cylinder and prevent blockage or bridging during the feeding process. A servo motor 4 is located at the bottom of the protective shell 3. A gear drive mechanism is connected to the output shaft of the motor 4. The gear drive mechanism is provided with a first connecting plate 8. A rotating shaft 10 is provided at the bottom of the first connecting plate 8. Several stirring rods 11 are provided on the outside of the rotating shaft 10. A second connecting plate 801 is provided at the bottom of the rotating shaft 10. A side wall scraper 7 is provided between the first connecting plate 8 and the second connecting plate 801. A conical scraper 701 is provided at the bottom of the side wall scraper 7. Both the side wall scraper 7 and the conical scraper 701 are made of polyurethane material. The polyurethane material is soft and has a certain elasticity, which can avoid scratching the surface of the mixing cylinder 2. The conical scraper 701 fits into the funnel 201, and the side wall scraper 7 fits into the mixing cylinder 2.

[0019] like Figure 3 As shown, the gear drive mechanism includes a drive gear 5 and a driven gear 6. The output shaft of the servo motor 4 is connected to the drive gear 5. The inner side wall of the left part of the protective shell 3 is provided with an annular slide rail. The driven gear 6 is rotatably connected to the annular slide rail. The drive gear 5 and the driven gear 6 mesh with each other.

[0020] like Figure 2 As shown, it also includes a screw rod 9. The bottom of the rotating shaft 10 is provided with a screw rod 9. The rotating shaft 10 can drive the screw rod 9 to rotate. The screw rod 9 can assist in the discharge after mixing. The residual material at the bottom is discharged through the screw propulsion action to ensure smooth and thorough discharge.

[0021] like Figure 1 As shown, it also includes a bottom cover 203. The bottom of the funnel 201 is threadedly connected to the bottom cover 203. The bottom cover 203 is closed during mixing to ensure the mixing effect. When the mixing is completed and the material is ready to be discharged, the bottom cover 203 is opened so that the material can be discharged smoothly.

[0022] When making PVC products, PVC raw materials need to be mixed with other raw materials. The raw materials are added into the mixing cylinder 2 through the feeding hopper 202. The servo motor 4 is started, and the servo motor 4 drives the drive gear 5 to rotate. The drive gear 5 drives the driven gear 6 to rotate. The driven gear 6 drives the rotating shaft 10 and the second connecting plate 801 to rotate through the first connecting plate 8. The rotating shaft 10 drives the stirring rod 11 to rotate to mix the raw materials in the mixing cylinder 2. The first connecting plate 8 and the second connecting plate 801 drive the side wall scraper 7 and the conical scraper 701 to rotate to remove material residue from the inner wall of the mixing cylinder 2 and the bottom funnel 201, ensuring uniform mixing and preventing material from adhering to the inside of the equipment.

[0023] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A PVC raw material mixing device, comprising a base (1), a mixing cylinder (2), a funnel (201), a discharge hopper (202), and a protective shell (3), wherein the mixing cylinder (2) is provided at the top of the base (1), the funnel (201) is provided at the bottom of the mixing cylinder (2), the protective shell (3) is provided on the outside of the mixing cylinder (2), and the discharge hopper (202) is provided at the top of the protective shell (3), characterized in that: It also includes a servo motor (4), a side wall scraper (7), a conical scraper (701), a first connecting plate (8), a second connecting plate (801), a rotating shaft (10), and stirring rods (11). The bottom of the protective shell (3) is provided with a servo motor (4). A gear drive mechanism is connected to the output shaft of the servo motor (4). The gear drive mechanism is provided with a first connecting plate (8). The bottom of the first connecting plate (8) is provided with a rotating shaft (10). Several stirring rods (11) are provided on the outside of the rotating shaft (10). The bottom of the rotating shaft (10) is provided with a second connecting plate (801). A side wall scraper (7) is provided between the first connecting plate (8) and the second connecting plate (801). The bottom of the side wall scraper (7) is provided with a conical scraper (701). The conical scraper (701) fits into the funnel (201). The side wall scraper (7) fits into the mixing cylinder (2).

2. The pvc raw material mixing device according to claim 1, characterized in that: The gear drive mechanism includes a drive gear (5) and a driven gear (6). The output shaft of the servo motor (4) is connected to the drive gear (5). The inner side wall of the left side of the protective shell (3) is provided with an annular slide rail. The driven gear (6) is rotatably connected to the annular slide rail. The drive gear (5) and the driven gear (6) mesh with each other.

3. The PVC raw material mixing device as described in claim 2, characterized in that: It also includes a screw rod (9), and the bottom of the rotating shaft (10) is provided with a screw rod (9).

4. The pvc raw material mixing device according to claim 3, characterized in that: It also includes a bottom cover (203), and the bottom of the funnel (201) is threadedly connected to the bottom cover (203).

5. A pvc raw material mixing device as claimed in claim 4, characterized in that: The opening of the hopper (202) is designed to be flared and has an inclined guiding surface.

6. A pvc raw material mixing device as claimed in claim 5, characterized in that: Both the side wall scraper (7) and the conical scraper (701) are made of polyurethane material.

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