Feeding device for PVC pipe production

Abstract

The utility model discloses a feeding device for PVC (polyvinyl chloride) pipe production, which comprises a base frame and further comprises a mixed feeding mechanism, the mixed feeding mechanism comprises an outer transverse barrel and a feeding box, the outer transverse barrel is fixedly arranged at the top of the base frame, the feeding box is arranged in the middle of the outlet end of the outer transverse barrel, and an inner transverse barrel for guiding granules is arranged in the outer transverse barrel; a spiral material conveying rod for conveying granular materials is arranged in the inner transverse barrel; and the rotary stirring mechanism comprises a sleeve arranged under the feeding box, and the sleeve is connected with the base frame. By arranging the mixing feeding mechanism, a plurality of storage hoppers arranged at equal intervals are used for storing various different granular materials, then a driving unit is used for sequentially discharging the granular materials, normal feeding of the granular materials is guaranteed, meanwhile, the mixing function is achieved, mixed supply of the various granular materials is achieved, the plasticizing uniformity of PVC pipes is improved, and the production efficiency is improved. The overall performance of the pipe is ensured.

Description

Technical Field

[0001] This utility model relates to the field of pipe production technology, specifically to a feeding device for PVC pipe production. Background Technology

[0002] PVC is a polymer formed by the polymerization of vinyl chloride monomer (VCM) under the action of initiators such as peroxides and azo compounds, or under the influence of light and heat, according to a free radical polymerization mechanism. PVC comes in two types: rigid and flexible. Rigid PVC is used not only for building pipes and doors and windows, but also for manufacturing plastic bottles, packaging, bank cards, or membership cards. In addition, the addition of plasticizers can make PVC more flexible and elastic, and it can be used for pipes, cable insulation, flooring, signage, phonograph records, inflatable products, and rubber substitutes.

[0003] Currently, in the production process of PVC pipes, the feeding and mixing of raw materials are key steps that determine the basic quality of the product. The feeding devices used in existing PVC pipe production lines are often limited to the supply of single or limited types of granules and lack the ability to mix multiple granules with different properties. If the mixing is uneven, it will lead to uneven plasticization of PVC pipes, which will easily affect the overall performance of the pipes. Therefore, a feeding device for PVC pipe production is provided. Utility Model Content

[0004] The purpose of this utility model is to provide a feeding device for PVC pipe production to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows: A feeding device for PVC pipe production, comprising a base frame, and further comprising:

[0006] A mixing and feeding mechanism for mixing various granular materials includes an outer horizontal cylinder fixedly mounted on the top of a base frame and a feeding box located in the middle of the outlet end of the outer horizontal cylinder. An inner horizontal cylinder for guiding the granular materials is provided inside the outer horizontal cylinder, and a spiral conveyor for conveying the granular materials is provided inside the inner horizontal cylinder.

[0007] A rotary mixing mechanism for dispersing mixtures, the rotary mixing mechanism including a sleeve disposed directly below the feed box, the sleeve being connected to a base frame.

[0008] Preferably, the feeding box and the outer horizontal cylinder are integrally formed and connected to each other. The inner horizontal cylinder is connected to the outer horizontal cylinder. The spiral conveying rod is rotatably connected to the outer horizontal cylinder through a bearing. The outer end of the spiral conveying rod is connected to the output end of the external drive component through a coupling.

[0009] Preferably, a drive shaft is provided directly above the outer cross cylinder, and a support frame for supporting the drive shaft is fixedly provided on the outer surface of the outer cross cylinder. The drive shaft and the support frame are rotatably connected. The drive shaft and the screw conveyor are driven by a belt drive assembly. A first bevel gear is installed on the middle of the outer surface of the drive shaft at the end away from the belt drive assembly.

[0010] Preferably, the outer surface of the outer transverse cylinder is fixedly provided with a plurality of storage hoppers arranged at equal intervals for storing granular materials. The bottom end of the storage hopper penetrates the outer surface of the inner transverse cylinder and extends to the inner surface of the inner transverse cylinder. A fixed intercepting plate is provided at the bottom of the inner surface of the storage hopper. An opening is provided through the outer surface of the storage hopper at the position of the fixed intercepting plate, and a movable intercepting plate is slidably provided inside the opening. The movable intercepting plate is in contact with the fixed intercepting plate.

[0011] Preferably, the mixing and feeding mechanism further includes a driving unit for driving the movable interceptor plate. The driving unit includes a cylinder, a mounting plate, a logic control module, a solenoid valve, and a throttle valve. The cylinder and the mounting plate are both disposed outside the storage hopper and located at the position of the movable interceptor plate. The cylinder and the storage hopper are connected through the mounting plate. The output end of the cylinder is connected and assembled to the outer end of the movable interceptor plate. The cylinder, the logic control module, the solenoid valve, and the throttle valve are electrically connected.

[0012] Preferably, the sleeve has a bulge in the middle and a drive shaft in the middle. The upper end of the drive shaft extends to the position of the transmission shaft, and a second bevel gear is installed in the middle of the upper end of the drive shaft. The second bevel gear meshes with the first bevel gear for transmission. Multiple stirring rods arranged in a ring at equal intervals are provided on the outer surface of the drive shaft at the bulge position.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By setting up a mixing and feeding mechanism, multiple hoppers arranged at equal intervals are used to store various granular materials. Then, a drive unit is used to discharge these granular materials sequentially, ensuring normal feeding of granular materials while also having a mixing function. This allows for the mixed supply of various granular materials, improving the plasticization uniformity of PVC pipes and ensuring the overall performance of the pipes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an overall side sectional view of the present invention;

[0017] Figure 3 This is a schematic diagram of the internal structure of the storage hopper of this utility model.

[0018] In the picture:

[0019] 100. Base frame; 200. Mixing and feeding mechanism; 201. Outer horizontal cylinder; 202. Feed box; 203. Inner horizontal cylinder; 204. Spiral conveyor rod; 205. Belt drive assembly; 206. Support frame; 207. Storage hopper; 208. Drive shaft; 209. First bevel gear; 210. Fixed intercepting plate; 211. Movable intercepting plate; 212. Cylinder; 213. Mounting plate; 300. Rotary mixing mechanism; 301. Sleeve; 302. Stirring rod; 303. Bulging part; 304. Drive shaft; 305. Second bevel gear. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-3 This utility model provides a technical solution: a feeding device for PVC pipe production, including a base frame 100. The device also includes: a mixing feeding mechanism 200 for mixing various different granular materials; and a rotary mixing mechanism 300 for dispersing the mixture.

[0022] Specifically, the mixing and feeding mechanism 200 includes an outer horizontal cylinder 201 fixedly mounted on the top of the base frame 100, and a feeding box 202 located in the middle of the outlet end of the outer horizontal cylinder 201. The feeding box 202 is integrally formed with the outer horizontal cylinder 201 and is connected to the outer horizontal cylinder 201. An inner horizontal cylinder 203 for guiding the granular material is provided inside the outer horizontal cylinder 201. A screw conveyor 204 for conveying the granular material is provided inside the inner horizontal cylinder 203. The inner horizontal cylinder 203 is connected to the outer horizontal cylinder 201, and the screw conveyor 204 is rotatably mounted with the inner horizontal cylinder 203. The screw conveyor 204 and the outer horizontal cylinder 201 are rotatably mounted via bearings. The outer end of the screw conveyor 204 is connected to the output end of the external drive component via a coupling. The driving component, namely the electric motor, is not shown or labeled in the accompanying drawings of the instruction manual. As it is prior art, it will not be described in detail here. In this device, a drive shaft 208 is installed directly above the outer horizontal cylinder 201. A support frame 206 is fixedly installed on the outer surface of the outer horizontal cylinder 201 to support the drive shaft 208. The drive shaft 208 and the support frame 206 are rotatably connected. The drive shaft 208 and the screw conveyor 204 are driven by a belt drive assembly 205. The belt drive assembly 205 consists of two synchronous pulleys and a toothed drive belt, ensuring synchronous rotation while preventing slippage at the connection point. A first bevel gear 209 is installed on the outer surface of the drive shaft 208 at the middle of the end away from the belt drive assembly 205. Multiple bevel gears 209 are fixedly installed on the outer surface of the outer horizontal cylinder 201 in an equal arrangement. Storage hoppers 207, spaced apart and used for storing granular materials, have their bottom ends penetrating the outer surface of the inner horizontal cylinder 203 and extending to the inner surface of the inner horizontal cylinder 203. They are used to convey stored granular materials into the inner horizontal cylinder 203, and then a screw conveyor 204 conveys the granular materials to the feed box 202. In use, operators can store various types of granular materials separately in each storage hopper 207. A fixed intercepting plate 210 is installed at the bottom of the inner surface of each storage hopper 207, and the fixed intercepting plate 210 is placed at a 45-degree angle. An opening is formed on the outer surface of each storage hopper 207 at the position of the fixed intercepting plate 210, and a movable intercepting plate 211 is slidably installed inside the opening to cooperate with the fixed intercepting plate 210. The mixing and feeding mechanism 200 also includes a drive unit for driving the movable interceptor plate 211. Specifically, the drive unit includes a cylinder 212, a mounting plate 213, a logic control module, a solenoid valve, and a throttle valve. The cylinder 212 and mounting plate 213 are both located outside the storage hopper 207 and at the position of the movable interceptor plate 211. The cylinder 212 is connected to the storage hopper 207 via the mounting plate 213. The output end of the cylinder 212 is connected to the outer end of the movable interceptor plate 211. The logic control module is a programmable logic controller used to control various input / output devices according to a preset program. The solenoid valve controls the airflow of the cylinder 212.This controls the extension and retraction of cylinder 212. The throttle valve adjusts the movement speed of cylinder 212. The logic control module, solenoid valve, and throttle valve are not shown or labeled in the accompanying drawings; as prior art, they will not be described in detail here. Cylinder 212, logic control module, solenoid valve, and throttle valve are electrically connected. In use, the rightmost storage hopper 207 can be used to store PVC raw materials. Using a set program, cylinders 212 can be activated sequentially from right to left, causing various particles to mix.

[0023] Specifically, the rotary mixing mechanism 300 includes a sleeve 301 located directly below the feed box 202 for introducing the mixture into the hopper of the extrusion equipment. The sleeve 301 is connected to the base frame 100. A bulge 303 is provided in the middle of the sleeve 301. A drive shaft 304 is provided in the middle of the sleeve 301. The upper end of the drive shaft 304 extends to the position of the transmission shaft 208. A second bevel gear 305 is installed in the middle of the upper end of the drive shaft 304. The second bevel gear 305 meshes with the first bevel gear 209 for transmission. Multiple stirring rods 302 arranged in a ring at equal intervals are provided on the outer surface of the drive shaft 304 and located at the position of the bulge 303.

[0024] Based on the above, this utility model, by setting up a mixing and feeding mechanism 200, uses multiple equally spaced storage hoppers 207 to store various different granular materials, and then uses a drive unit to sequentially discharge these granular materials, ensuring normal feeding of granular materials while also having a mixing function, thereby mixing and supplying multiple granular materials, improving the plasticization uniformity of PVC pipes, and ensuring the overall performance of pipes; this utility model, by setting up a rotating stirring mechanism 300, can perform secondary mixing of the mixed granular materials, ensuring the mixing effect.

[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.

Claims

1. A feeding device for PVC pipe production, comprising a base frame (100), characterized in that, Also includes: A mixing and feeding mechanism (200) for mixing various different granular materials includes an outer horizontal cylinder (201) fixedly installed on the top of a base frame (100) and a feed box (202) installed in the middle of the outlet end of the outer horizontal cylinder (201). An inner horizontal cylinder (203) for guiding the granular materials is provided inside the outer horizontal cylinder (201), and a screw conveyor (204) for conveying the granular materials is provided inside the inner horizontal cylinder (203). A rotary mixing mechanism (300) for dispersing a mixture includes a sleeve (301) disposed directly below a feed box (202) and connected to a base frame (100).

2. The feeding device for PVC pipe production according to claim 1, characterized in that: The feeding box (202) and the outer horizontal cylinder (201) are integrally formed and connected. The inner horizontal cylinder (203) is connected to the outer horizontal cylinder (201). The spiral conveying rod (204) and the outer horizontal cylinder (201) are rotatably set through bearings. The outer end of the spiral conveying rod (204) is connected to the output end of the external drive component through a coupling.

3. The feeding device for PVC pipe production according to claim 1, characterized in that: A drive shaft (208) is provided directly above the outer cross cylinder (201). A support frame (206) for supporting the drive shaft (208) is fixedly provided on the outer surface of the outer cross cylinder (201). The drive shaft (208) and the support frame (206) are rotatably connected. The drive shaft (208) and the screw conveyor (204) are driven by a belt drive assembly (205). A first bevel gear (209) is installed on the middle of the outer surface of the drive shaft (208) away from the belt drive assembly (205).

4. The feeding device for PVC pipe production according to claim 1, characterized in that: The outer surface of the outer horizontal cylinder (201) is fixedly provided with a plurality of storage hoppers (207) arranged at equal intervals for storing granular materials. The bottom end of the storage hopper (207) penetrates the outer surface of the inner horizontal cylinder (203) and extends to the inner surface of the inner horizontal cylinder (203). A fixed intercepting plate (210) is provided at the bottom of the inner surface of the storage hopper (207). The outer surface of the storage hopper (207) and the position of the fixed intercepting plate (210) are provided with a hopper opening, and a movable intercepting plate (211) is slidably provided inside the hopper opening. The movable intercepting plate (211) is in contact with the fixed intercepting plate (210).

5. The feeding device for PVC pipe production according to claim 1, characterized in that: The mixing and feeding mechanism (200) also includes a driving unit for driving the movable interceptor plate (211). The driving unit includes a cylinder (212), a mounting plate (213), a logic control module, a solenoid valve, and a throttle valve. The cylinder (212) and the mounting plate (213) are both located outside the storage hopper (207) and at the position of the movable interceptor plate (211). The cylinder (212) is connected to the storage hopper (207) through the mounting plate (213). The output end of the cylinder (212) is connected and assembled to the outer end of the movable interceptor plate (211). The cylinder (212), the logic control module, the solenoid valve, and the throttle valve are electrically connected.

6. The feeding device for PVC pipe production according to claim 1, characterized in that: The sleeve (301) has a bulge (303) in the middle and a drive shaft (304) in the middle. The upper end of the drive shaft (304) extends to the position of the transmission shaft (208). A second bevel gear (305) is installed in the middle of the upper end of the drive shaft (304), and the second bevel gear (305) meshes with the first bevel gear (209) for transmission. Multiple stirring rods (302) are arranged in a ring at equal intervals on the outer surface of the drive shaft (304) and at the position of the bulge (303).

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