PVC production raw material mixing device
By using the heat preheating of the drive components and the reaction vessel body during the PVC production process, the problem of high energy consumption of high-speed mixing devices is solved, enabling rapid mixing and melting of raw materials and reducing production costs.
Patent Information
- Application Number
- CN202520392591.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-03-07
AI Technical Summary
In the existing PVC production process, high-speed mixing equipment consumes a lot of energy and is not environmentally friendly. In addition, the PVC raw materials have poor thermal stability and are prone to scorching, resulting in high production costs.
A PVC production raw material mixing device is adopted. The drive component drives the rotating shaft and scraper to preheat the raw materials in combination with the heat of the reaction tank body, ensuring that the raw materials quickly reach the melting temperature, which facilitates melting and reduces energy consumption.
It enables rapid mixing and melting of raw materials, reduces production costs, improves production efficiency, and reduces energy consumption.
Smart Images
Figure CN223961503U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of PVC raw material processing technology, and specifically relates to a PVC production raw material mixing device. Background Technology
[0002] PVC raw materials are inexpensive, strong, and resistant to chemicals, with a shrinkage rate of 0.2%-0.6%. Their applications are increasingly widespread in electrical appliances, machinery, construction, daily necessities, toys, and packaging. However, PVC raw materials have poor thermal stability, with molding temperatures close to their decomposition temperatures. They also have poor fluidity, making them prone to surface defects. Furthermore, PVC raw materials have poor heat resistance, easily scorching and producing acidic gases that corrode molds. Plasticizers can be added during processing to increase fluidity, and additives are generally required to enhance their strength, electrical insulation, and chemical resistance.
[0003] During the production of PVC plastic products, due to the numerous and complex components of auxiliary materials, the main and auxiliary raw materials of PVC need to be high-speed stirred before production to ensure that the raw materials reach the process reaction temperature and achieve homogenization. In existing technologies, the mixing process of the main and auxiliary raw materials of PVC is completed in a high-speed mixing device. The high-speed mixing device is usually driven by a motor to rotate the stirring blades at high speed to achieve uniform dispersion of the main and auxiliary raw materials of PVC. Under the action of the high-speed rotating blades, the raw materials generate a large amount of heat due to friction, achieving the purpose of uniform mixing and semi-plasticization of various raw and auxiliary materials. However, this mixing method is energy-intensive and environmentally unfriendly. Therefore, a PVC production raw material mixing device is needed to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a PVC production raw material mixing device. Various PVC raw materials are added to a mixing tank through a long inlet and a feed inlet. A drive component drives a circular shaft to rotate, and the circular shaft drives a scraper connecting plate to rotate through a connecting shaft, thus fully mixing the various PVC raw materials. The heat in the reaction tank body preheats the raw materials in the mixing tank, thereby ensuring that the various raw materials quickly reach the melting temperature, which is convenient for melting. This method consumes less energy and reduces production costs.
[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:
[0006] A PVC production raw material mixing device includes a reaction tank body. A support frame is fixedly mounted on the upper side of the reaction tank body. A feed inlet is opened on the upper side of the reaction tank body. A cylinder is fixedly mounted on the upper side of the support frame. A discharge port matching the feed inlet is opened on the lower side of the cylinder. An elongated opening matching the discharge port is opened on the upper side of the cylinder. A stirring tank is rotatably mounted inside the cylinder. A feed inlet matching the elongated opening is opened on the upper side of the stirring tank. A circular shaft is rotatably mounted inside the stirring tank. A plurality of circumferentially distributed scrapers are rotatably mounted inside the stirring tank. A plurality of linearly distributed connecting shafts are fixedly mounted between the plurality of scrapers and the circular shaft. A plurality of linearly distributed connecting plates are fixedly mounted on the sidewall of the same scraper. A motor is mounted on one side of the support frame. The output shaft of the motor is drivenly connected to the circular shaft. A drive assembly matching the stirring tank is provided on one side of the support frame.
[0007] The drive assembly includes a through groove on one side of the support frame, a gear ring that matches the through groove and is concentrically fixed on the same side of the mixing tank, a short shaft that is rotatably mounted on the same side of the support frame, a first gear that meshes with the gear ring and is concentrically fixed on the side of the short shaft near the mixing tank, a second gear is mounted on the other side of the short shaft, a third gear that meshes with the second gear and is concentrically fixed on the round shaft, and a moving part that matches the third gear and is located on the same side of the support frame.
[0008] The moving part includes several circumferentially distributed slots on the side wall of the short shaft. Several locking blocks matching the slots are fixedly provided inside the second gear. An annular T-shaped groove is provided on the side of the second gear away from the mixing tank. An annular T-shaped block matching the annular T-shaped groove is rotatably assembled on the side wall of the second gear. Two symmetrically distributed arc plates are fixedly provided on the outer side of the annular T-shaped block. A circular arc plate is fixedly provided on the outer side of the two arc plates. An electric telescopic rod is installed on the upper side of the support frame. The output end of the electric telescopic rod is fixedly connected to the circular arc plate.
[0009] The support frame is fixedly provided with a cover plate that matches the through groove on its side wall, and two limiting blocks that match the second gear are fixedly provided on the outer side wall of the cover plate.
[0010] A feed hopper matching the long opening is fixedly provided on the upper side of the cylinder.
[0011] This invention allows various PVC raw materials to be added into a mixing tank through a long inlet and a feed inlet. The drive component rotates a circular shaft, which in turn rotates a scraper connecting plate via a connecting shaft, thus thoroughly mixing the various PVC raw materials. The heat in the reaction tank preheats the raw materials in the mixing tank, ensuring that the various raw materials quickly reach the melting temperature, facilitating melting, reducing energy consumption, and lowering production costs. Attached Figure Description
[0012] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.
[0013] Figure 1 This is a schematic diagram of the structure of an embodiment of a PVC production raw material mixing device according to the present invention. Figure 1 ;
[0014] Figure 2 This is a schematic diagram of the structure of an embodiment of a PVC production raw material mixing device according to the present invention. Figure 2 ;
[0015] Figure 3 for Figure 2 Enlarged structural diagram at point A;
[0016] Figure 4 This is a cross-sectional structural schematic diagram of an embodiment of a PVC production raw material mixing device according to the present invention;
[0017] Figure 5 for Figure 4 A magnified structural diagram at point B in the middle.
[0018] The symbols for the main components are explained below:
[0019] The reaction vessel body 1, support frame 10, cylinder 11, stirring tank 12, round shaft 13, scraper 14, connecting shaft 15, connecting plate 16, gear ring 20, short shaft 21, first gear 22, second gear 23, third gear 24, motor 25, annular T-block 31, arc plate 32, circular arc plate 33, electric telescopic rod 34, cover plate 35, limiting block 36, feed hopper 40. Detailed Implementation
[0020] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0021] like Figure 1-5As shown, a PVC production raw material mixing device of the present invention includes a reaction tank body 1, a support frame 10 fixedly mounted on the upper side of the reaction tank body 1, a feed inlet on the upper side of the reaction tank body 1, a cylinder 11 fixedly mounted on the upper side of the support frame 10, a discharge port matching the feed inlet on the lower side of the cylinder 11, a long opening matching the discharge port on the upper side of the cylinder 11, a stirring tank 12 rotatably mounted inside the cylinder 11, a feed inlet matching the long opening on the upper side of the stirring tank 12, a circular shaft 13 rotatably mounted inside the stirring tank 12, and several circumferentially distributed scrapers 14 rotatably mounted inside the stirring tank 12. Several linearly distributed connecting shafts 15 are fixedly mounted between the scrapers 14 and the circular shaft 13. Several linearly distributed connecting plates 16 are fixedly mounted on the sidewall of the same scraper 14. A motor 25 is mounted on one side of the support frame 10, and the output shaft of the motor 25 is connected to the circular shaft 13. A drive assembly matching the stirring tank 12 is provided on one side of the support frame 10.
[0022] The drive assembly includes a through groove on one side of the support frame 10, a gear ring 20 that matches the through groove is concentrically fixed on the same side of the mixing tank 12, a short shaft 21 is rotatably mounted on the same side of the support frame 10, a first gear 22 that meshes with the gear ring 20 is concentrically fixed on the side of the short shaft 21 near the mixing tank 12, a second gear 23 is mounted on the other side of the short shaft 21, a third gear 24 that meshes with the second gear 23 is concentrically fixed on the round shaft 13, and a moving part that matches the third gear 23 is provided on the same side of the support frame 10.
[0023] In use, the user engages the second gear 23 and the third gear 24 via a movable component. The output shaft of the motor 25 drives the round shaft 13 to rotate, which in turn drives the third gear 23 to rotate. The third gear 23, through the second gear 23 and the short shaft 21, drives the first gear 22 to rotate. The first gear 22, through the gear ring 20, drives the mixing tank 12 to rotate, aligning the inlet with the long opening. This facilitates the user adding PVC raw materials into the mixing tank 12. After the raw materials are added, the user drives the mixing tank 12 to rotate again via the motor 25, causing the inlet and long opening to intersect. The movable component then separates the second gear 23 and the third gear 24. The motor 25 drives the round shaft 13 to rotate, which in turn drives the scraper 14 and the connecting plate 16 to rotate through the connecting shaft 15. This stirs the raw materials in the mixing tank 12, ensuring thorough mixing of all materials. The temperature inside the reaction tank 1 also preheats the raw materials inside the mixing tank 12, improving production efficiency.
[0024] During the use of this utility model, after the mixing tank 12 has finished mixing the raw materials, the moving part causes the second gear 23 and the third gear 24 to mesh, and the motor 25 synchronously drives the mixing tank 12 to rotate, so that the feed port is aligned with the feed port on the upper side of the reaction tank body 1, so that the raw materials inside the mixing tank 12 enter the reaction tank body 1. The motor 25 synchronously drives the scraper 14 to rotate through the round shaft 13 to clean the inner wall of the mixing tank 12, ensuring that all the raw materials are discharged into the reaction tank body 1.
[0025] This invention allows various PVC raw materials to be added into a mixing tank through a long inlet and a feed inlet. The drive component rotates a circular shaft, which in turn rotates a scraper connecting plate via a connecting shaft, thus thoroughly mixing the various PVC raw materials. The heat in the reaction tank preheats the raw materials in the mixing tank, ensuring that the various raw materials quickly reach the melting temperature, facilitating melting, reducing energy consumption, and lowering production costs.
[0026] The moving part includes several circumferentially distributed slots on the side wall of the short shaft 21, several locking blocks that match the slots are fixed inside the second gear 23, an annular T-shaped groove is opened on the side of the second gear 23 away from the mixing tank 12, an annular T-shaped block 31 that matches the annular T-shaped groove is rotatably assembled on the side wall of the second gear 23, two symmetrically distributed arc plates 32 are fixed on the outside of the annular T-shaped block 31, and a circular arc plate 33 is fixed on the outside of the two arc plates 32. An electric telescopic rod 34 is installed on the upper side of the support frame 10, and the output end of the electric telescopic rod 34 is fixedly connected to the circular arc plate 33.
[0027] When this utility model is in use, if the second gear 23 needs to be slid, the output end of the electric telescopic rod 34 drives the arc plate 33, the arc plate 32 and the annular T-block 31 to move, thereby synchronously driving the second gear 23 to move, so that the second gear 23 and the third gear 24 can separate and mesh, realizing automated production without the need for manual operation by the user.
[0028] The support frame 10 is fixedly provided with a cover plate 35 that matches the through groove on the side wall. Two limiting blocks 36 that match the second gear 23 are fixedly provided on the outer side wall of the cover plate 35. When the mixing tank 12 does not need to rotate, the two limiting blocks 36 limit the second gear 23, thereby ensuring the stability of the mixing tank 12 and ensuring the normal feeding and discharging of the mixing tank 12.
[0029] A feed hopper 40 matching the long opening is fixedly provided on the upper side of the cylinder 11; this facilitates the addition of raw materials into the mixing tank 12.
[0030] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A PVC raw material mixing device, comprising a reaction tank body, characterized in that: The reaction tank body is provided with a support frame on the upper side, and a feeding port is formed on the upper side of the reaction tank body, a cylinder is fixedly arranged on the upper side of the support frame, a discharging port matched with the feeding port is formed on the lower side of the cylinder, a long port matched with the discharging port is formed on the upper side of the cylinder, a stirring tank is rotatably arranged in the cylinder, a feeding port matched with the long port is formed on the upper side of the stirring tank, a circular shaft is rotatably arranged in the stirring tank, a plurality of scraper plates are circumferentially arranged in the stirring tank, a plurality of connecting shafts are linearly arranged between the scraper plates and the circular shaft, a plurality of connecting plates are linearly arranged on the side wall of the same scraper plate, a motor is mounted on one side of the support frame, the output shaft of the motor is in transmission connection with the circular shaft, and a driving assembly matched with the stirring tank is arranged on one side of the support frame.
2. The PVC raw material mixing device according to claim 1, characterized in that: The driving assembly comprises a through groove formed on one side of the support frame, a gear ring matched with the through groove is fixedly arranged on the same side of the stirring tank, a short shaft is rotatably arranged on the same side of the support frame, a first gear matched with the gear ring is fixedly arranged on the same side of the short shaft close to the stirring tank, a second gear is mounted on the other side of the short shaft, a third gear matched with the second gear is fixedly arranged on the circular shaft, and a moving piece matched with the third gear is arranged on the same side of the support frame.
3. The PVC raw material mixing device according to claim 2, characterized in that: The moving piece comprises a plurality of circumferentially arranged clamping grooves formed in the side wall of the short shaft, a plurality of clamping blocks matched with the clamping grooves are fixedly arranged in the second gear, an annular T-shaped groove is formed in the side of the second gear away from the stirring tank, an annular T-shaped block matched with the annular T-shaped groove is rotatably arranged on the side wall of the second gear, two symmetrically arranged arc-shaped plates are fixedly arranged on the outer side of the annular T-shaped block, a circular arc plate is fixedly arranged on the outer sides of the two arc-shaped plates, an electric telescopic rod is mounted on the upper side of the support frame, and the output end of the electric telescopic rod is fixedly connected with the circular arc plate.
4. The PVC raw material mixing device according to claim 3, characterized in that: A cover plate matched with the through groove is fixedly arranged on the side wall of the support frame, and two limiting blocks matched with the second gear are fixedly arranged on the outer side wall of the cover plate.
5. The PVC raw material mixing device according to claim 4, characterized in that: A feeding hopper matched with the long port is fixedly arranged on the upper side of the cylinder.