A PVC single and twin screw side feeder

Abstract

This utility model discloses a PVC single and double screw side feeder, including a hopper, a vertical plate, and a feeding cylinder. The vertical plate is provided on the top of the hopper, and an electric push rod is provided inside the vertical plate. The output end of the electric push rod is fastened to a slider, and a cover is connected to one side of the slider. The feeding cylinder is connected to the bottom of the hopper, and a housing is provided on one side of the feeding cylinder. A control motor is installed on one side of the housing, and a main gear is fastened to the output end of the control motor. The main gear meshes with a driven gear. A feeding screw is provided on one side of both the main gear and the driven gear. The feeding gears on the sides of gears A and B move relative to each other to feed the material, preventing the material from clogging in the hopper. The relative movement of the feeding gears also has a certain stirring effect, making the material more uniform during the feeding process. The spiral tube cools the inside of the feeding cylinder, thereby preventing the heat generated by the feeding screw from affecting the material.

Description

Technical Field

[0001] This utility model relates to the technical field of side feeders, specifically a PVC single and twin screw side feeder. Background Technology

[0002] PVC processing feeding is the process of mixing PVC resin and related additives in a certain proportion and then feeding them into the processing equipment. It is mainly used to improve material properties and meet processing requirements. By adding plasticizers, stabilizers, and other additives, the fluidity and plasticization uniformity of PVC resin are improved, processing time is shortened, and energy consumption is reduced. For example, ACR processing aids can promote PVC melting and reduce the plasticization temperature.

[0003] A search revealed Chinese utility model patent CN221315079U, which describes a side-feeding device for a modified nylon granule extruder. The device includes a pressure chamber, a conveying cylinder located on one side of the pressure chamber, and a mixing hopper fixed to the top of the pressure chamber. Two meshing gear columns are rotatably connected between the inner walls of the two sides of the pressure chamber. A conveying screw is rotatably connected between the end walls of the two sides of the conveying cylinder. A drive assembly is connected between the conveying screw and the two gear columns. In this side-feeding device for the modified nylon granule extruder, a first motor drives a stirring blade to agitate the raw material in the mixing hopper, allowing the material to absorb heat and melt. The melted material seeps into the pressure chamber through filter holes on a filter plate. A second motor then drives two driven gears to rotate, causing the gear columns to carry the melted material from the upper side into the conveying cylinder. The rotating conveying screw then transports the material into the extruder, providing mechanical pressure and preventing material backflow.

[0004] The existing equipment has the following problems when in use: When the material is fed through the twin screw, the twin screw works for a long time, which causes internal heat to accumulate, which can easily affect the material and reduce its quality. Secondly, the material is prone to bridging in the conveyor, which reduces the feeding efficiency. Thirdly, the dust carried by the material during movement is dispersed into the air, causing air pollution. Summary of the Invention

[0005] The purpose of this invention is to provide a PVC single and twin screw side feeder to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a PVC single and double screw side feeder, comprising a hopper, a vertical plate, and a feeding cylinder. The vertical plate is located at the top of the hopper, and an electric push rod is installed inside the vertical plate. A slider is securely connected to the output end of the electric push rod, and a cover is connected to one side of the slider. The feeding cylinder is connected to the bottom of the hopper, and a housing is located on one side of the feeding cylinder. A control motor is installed on one side of the housing, and a main gear is securely connected to the output end of the control motor. The main gear meshes with a driven gear. Feeding screws are located on one side of both the main gear and the driven gear. A liquid tank is located at the top of the feeding cylinder, and a conveying pipe is connected to one side of the liquid tank via a pump body. One end of the conveying pipe is connected to a spiral tube, and one end of the spiral tube is connected to the liquid tank via a connecting pipe.

[0007] By adopting the above technical solution, the electric push rod is activated to drive the slider to move on the slide rail. The cover on one side of the slider moves accordingly, thereby opening the top of the hopper to facilitate material feeding. The motor drives the main gear to rotate, and the main gear meshes with the driven gear. Thus, the main gear and the driven gear drive the feeding screw to transport the material. The semiconductor cooling chip is activated in conjunction with the cooling fan to cool the coolant inside the liquid tank. The pump is activated to transport the coolant through the conveying pipe to the spiral tube. The spiral tube cools the inside of the feeding cylinder, thereby preventing the heat generated by the feeding screw from affecting the material. The coolant inside the spiral tube flows back to the liquid tank through the connecting pipe, and the material is discharged through the outlet.

[0008] Preferably, a connecting bin is provided on one side of the hopper, and a rotating motor is provided on one side of the connecting bin. Gear A is fastened to the output end of the rotating motor, and gear A meshes with gear B. Feeding gears are connected to one side of both gear A and gear B.

[0009] By adopting the above technical solution, the starting motor drives gear A to rotate, and gear A meshes with gear B, so that the feeding gears on one side of gear A and gear B move relative to each other, feeding the material and avoiding material blockage in the hopper.

[0010] Preferably, the feeding cylinder has a discharge port on one side and a base at the bottom.

[0011] Preferably, the inside of the feeding cylinder is provided with a cavity, and the inside of the cavity is provided with a spiral tube.

[0012] By adopting the above technical solution, the spiral tube is inside the cavity, which can comprehensively cool the inner surface of the feeding cylinder and increase the cooling effect.

[0013] Preferably, the top of the liquid tank is provided with a groove, the interior of the groove is provided with a semiconductor cooling chip, and the hot end of the semiconductor cooling chip is provided with a heat dissipation fan.

[0014] By adopting the above technical solution, the cooling fan accelerates the dissipation of heat from the thermoelectric cooler, thereby improving the cooling efficiency of the thermoelectric cooler.

[0015] Preferably, the top of the hopper is provided with a vertical plate and a fixed plate arranged side by side, and the interior of the vertical plate and the fixed plate is provided with a slide rail, and the slide rail is slidably connected to a slider.

[0016] By adopting the above technical solution, the stability of the cover during movement is improved through the combination of slider and slide rail.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] The relative movement of the feeding gears on one side of gear A and gear B discharges the material, preventing it from clogging in the hopper and improving the efficiency of material conveying. The relative movement of the feeding gears also has a certain stirring effect, making the material more uniform during the feeding process and further improving the quality of material conveying.

[0019] The semiconductor cooling chip, in conjunction with the cooling fan, cools the coolant inside the liquid tank. The pump then pumps the coolant through the delivery pipe into the spiral tube. The spiral tube cools the inside of the feeding cylinder, thus preventing the heat generated by the feeding screw from affecting the material, ensuring the stability of the material during the conveying process, and improving the processing quality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0022] Figure 3 This is a schematic diagram of the cover structure of this utility model.

[0023] Figure 4 This is a partial structural diagram of the present invention.

[0024] In the diagram: 1. Hopper; 2. Control motor; 3. Main gear; 4. Housing; 5. Feeding cylinder; 6. Feeding screw; 7. Cavity; 8. Spiral tube; 9. Discharge port; 10. Pump body; 11. Cooling fan; 12. Semiconductor refrigeration chip; 13. Liquid tank; 14. Connecting pipe; 15. Conveying pipe; 16. Base; 17. Rotating motor; 18. Connecting chamber; 19. Vertical plate; 20. Cover; 21. Electric push rod; 22. Slider. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides a technical solution: Please refer to Figure 1 , Figure 2 , Figure 3 A PVC single and twin screw side feeder includes a hopper 1, a vertical plate 19, and a feeding cylinder 5. The vertical plate 19 is located on the top of the hopper 1. An electric push rod 21 is installed inside the vertical plate 19. A slider 22 is fastened to the output end of the electric push rod 21. A cover 20 is connected to one side of the slider 22. The vertical plate 19 and a fixed plate are arranged side by side on the top of the hopper 1. Slide rails are installed inside both the vertical plate 19 and the fixed plate. The slider 22 is slidably connected to the slide rails. When the electric push rod 21 is activated, it moves the slider 22 on the slide rails. The cover 20 on one side of the slider 22 moves accordingly, thereby opening the top of the hopper 1 to facilitate material feeding. After feeding, the cover 20 is closed to prevent the dust carried by the material from spreading and causing air pollution.

[0027] Please see Figure 1 , Figure 2 A connecting chamber 18 is provided on one side of the hopper 1, and a rotating motor 17 is provided on one side of the connecting chamber 18. A gear A is fastened to the output end of the rotating motor 17. The gear A meshes with a gear B. A feeding gear is connected to one side of both gear A and gear B. When the rotating motor 17 is started, it drives gear A to rotate. Gear A meshes with gear B, so the feeding gears on the sides of gear A and gear B move relative to each other, discharging the material and preventing the material from clogging in the hopper, thus improving the feeding efficiency.

[0028] Please see Figure 1 , Figure 2 , Figure 4The bottom of the hopper 1 is connected to a feeding cylinder 5. A housing 4 is provided on one side of the feeding cylinder 5. A control motor 2 is installed on one side of the housing 4. A main gear 3 is fastened to the output end of the control motor 2. The main gear 3 meshes with a driven gear. A feeding screw 6 is provided on one side of both the main gear 3 and the driven gear. A liquid tank 13 is provided on the top of the feeding cylinder 5. A conveying pipe 15 is connected to one side of the liquid tank 13 through a pump body 10. One end of the conveying pipe 15 is connected to a spiral tube 8. One end of the spiral tube 8 is connected to the liquid tank 13 through a connecting pipe 14. A groove is provided on the top of the liquid tank 13. A semiconductor cooling chip 12 is provided inside the groove. A cooling fan 11 is provided at the hot end of the semiconductor cooling chip 12. The conductor cooling plate 12, together with the cooling fan 11, cools the coolant inside the liquid tank 13. The pump body 10 is started to deliver the coolant to the spiral tube 8 through the delivery pipe 15. The spiral tube 8 cools the inside of the feeding cylinder 5, thereby preventing the heat generated by the feeding screw 6 from affecting the material and causing a subsequent reduction in material quality. The coolant inside the spiral tube 8 flows back to the liquid tank 13 through the connecting pipe 14. The feeding cylinder 5 has a discharge port 9 on one side and a base 16 at the bottom. The feeding cylinder 5 has a cavity 7 inside, and the spiral tube 8 is installed inside the cavity 7. The start control motor 2 drives the main gear 3 to rotate. The main gear 3 meshes with the driven gear, thereby the main gear 3 and the driven gear drive the feeding screw 6 to feed the material.

[0029] Working principle: The electric push rod 21 is activated, causing the slider 22 to move on the slide rail. The cover 20 on one side of the slider 22 moves accordingly, opening the top of the hopper 1 for easy material feeding. The rotating motor 17 is activated, driving gear A to rotate. Gear A meshes with gear B, causing the feeding gears on one side of gear A and gear B to move relative to each other, feeding the material and preventing blockage in the hopper. The control motor 2 is activated, driving the main gear 3 to rotate. The main gear 3 meshes with the driven gear, causing the main gear 3 and driven gear to drive the feeding screw 6 to convey the material. The semiconductor cooling chip 12, in conjunction with the cooling fan 11, cools the coolant inside the liquid tank 13. The pump 10 is activated, conveying the coolant through the conveying pipe 15 to the spiral tube 8. The spiral tube 8 cools the inside of the feeding cylinder 5, preventing the heat generated by the feeding screw 6 from affecting the material. The coolant inside the spiral tube 8 flows back to the liquid tank 13 through the connecting pipe 14, and the material is discharged through the outlet 9.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PVC single or double screw side feeder comprising a hopper (1), a vertical plate (19), a feeding cylinder (5), characterized in that: The top of the hopper (1) is provided with a vertical plate (19), and an electric push rod (21) is provided inside the vertical plate (19). The output end of the electric push rod (21) is fastened to a slider (22). A cover (20) is connected to one side of the slider (22). The bottom of the hopper (1) is connected to a feeding cylinder (5). A housing (4) is provided on one side of the feeding cylinder (5). A control motor (2) is installed on one side of the housing (4). A main gear (3) is fastened to the output end of the control motor (2). The main gear (3) meshes with a driven gear. A feeding screw (6) is provided on one side of both the main gear (3) and the driven gear. A liquid tank (13) is provided on the top of the feeding cylinder (5). A conveying pipe (15) is connected to one side of the liquid tank (13) through a pump body (10). A spiral pipe (8) is connected to one end of the conveying pipe (15). A liquid tank (13) is connected to one end of the spiral pipe (8) through a connecting pipe (14).

2. A PVC single or twin screw side feeder as claimed in claim 1, characterized in that: A connecting chamber (18) is provided on one side of the hopper (1), and a rotating motor (17) is provided on one side of the connecting chamber (18). A gear A is fastened to the output end of the rotating motor (17), and the gear A meshes with a gear B. A feeding gear is connected to one side of both gear A and gear B.

3. The PVC single or twin screw side feeder as claimed in claim 1, wherein: The feeding cylinder (5) has a discharge port (9) on one side and a base (16) at the bottom.

4. The PVC single or twin screw side feeder of claim 1, wherein: The feed cylinder (5) has a cavity (7) inside, and a spiral tube (8) is installed inside the cavity (7).

5. The PVC single or twin screw side feeder of claim 1, wherein: The top of the liquid tank (13) is provided with a groove, and a semiconductor cooling chip (12) is provided inside the groove. A heat dissipation fan (11) is provided at the hot end of the semiconductor cooling chip (12).

6. The PVC single or twin screw side feeder of claim 1, wherein: The top of the hopper (1) is provided with a vertical plate (19) and a fixed plate, and the interior of the vertical plate (19) and the fixed plate is provided with a slide rail, and the slide rail is slidably connected to a slider (22).

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