Quantitative feeding device for PVC auxiliary agent production

Abstract

The utility model discloses a quantitative feeding device for PVC (polyvinyl chloride) additive production, which comprises a cylindrical shell, a hopper is mounted at the top of the shell, and the bottom of the hopper is planar; a circular discharging device is rotatably mounted at the lower end of the hopper, a circular flow channel is eccentrically formed in the discharging device in the axial direction in a penetrating manner, and the circular flow channel of the discharging device is matched with a circular discharging hole in the lower end of the hopper during rotation; when the circular runner is right opposite to the discharge hole of the hopper, quantitative powder flows into the circular runner, and when the circular runner rotates away from the discharge hole of the hopper, the powder is discharged from the lower end of the circular runner, so that quantitative feeding is realized. Different materials can be automatically and quantitatively added without manual work, and the feeding amount can be flexibly adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to a PVC additive production is with ration feeding device belongs to PVC additive ration feeding technical field. BACKGROUND

[0002] PVC is one of the world's five general-purpose plastics. In recent years, with the rapid development of China's national economy, PVC products have grown by more than 20% per year. By 2005, the annual output of PVC had reached 7.5 million tons. According to forecasts, the demand for PVC will exceed 10 million tons by 2007. Polyvinyl chloride (PVC) is a very versatile general-purpose plastic that has an irreplaceable position in the fields of chemical building materials, chemical corrosion protection, and daily-use products. PVC melt has poor ductility, which can easily lead to melt fragmentation. PVC melt has slow relaxation, which can easily lead to rough surface, lack of luster, and sharkskin, etc. Therefore, processing aids are often added during PVC processing to improve the above-mentioned defects of the melt.

[0003] During the production of PVC additives, various different powdery materials need to be added quantitatively into the reaction kettle, which is often done by experienced manual feeding. However, this method is not accurate and requires labor.

[0004] In summary, the prior art has obvious inconvenience and defects in actual use, so it is necessary to improve. INVENTION CONTENTS

[0005] The utility model provides a PVC additive production is with ration feeding device for the shortage in the prior art, can not need manual, automatic ration adds different material, and can flexibly adjust the feeding amount.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme:

[0007] A PVC additive production is with ration feeding device, including the cylindrical casing, the top of casing is equipped with hopper, the bottom of hopper is the plane setting;

[0008] The lower end of hopper is rotationally installed with the circular material discharger, the circular runner is arranged on the material discharger and is eccentric along the axial direction, when rotating, the circular runner of material discharger cooperates with the circular discharge hole of lower end of hopper;

[0009] When the circular runner is opposite to the discharge hole of hopper, the quantitative powder flows into the circular runner, when the circular runner rotates away from the discharge hole of hopper, the powder is discharged from the lower end of circular runner, realizing quantitative feeding.

[0010] Further, the hopper has two, and each hopper is provided with a material discharger at the lower end.

[0011] Further, the lower end of the discharger is fixedly provided with a supporting plate, both ends of the supporting plate are fixed to the inner wall of the shell, and the lower end of the discharging shaft is rotatably installed on the supporting plate.

[0012] Further, a gear ring is fixedly sleeved on the outer side of the discharger, the gear ring is in meshing transmission with the translation gear, the translation gear is horizontally slidably installed on the shell, and the translation gear is driven by a translation driving device.

[0013] Further, the translation driving device comprises a base, an annular frame body is slidably installed on the base through a track, one end of the annular frame body is fixedly connected with the translation gear, driving gear racks are parallelly arranged at the upper end and the lower end of the annular frame body, and an incomplete gear is arranged between the two driving gear racks and is driven to rotate by a driving motor.

[0014] Further, an inner cylinder is sleeved in the circular flow channel of the discharger, the diameter of the inner cylinder is smaller than that of the circular flow channel, a flange is arranged at the upper end of the inner cylinder, and the inner cylinder is fixed in the circular flow channel through the flange.

[0015] Further, a plastic annular joint is arranged at the circular discharging hole of the lower end of the hopper.

[0016] Further, a main shaft is vertically installed in the shell, a stirring rod is installed on the periphery of the main shaft, a stirring motor is installed on the top of the shell, and the driving shaft of the stirring motor is fixedly connected with the main shaft.

[0017] Compared with the prior art, the above technical scheme has the following advantages:

[0018] The circular flow channel of the discharger cooperates with the circular discharging hole of the lower end of the hopper, when the circular flow channel is opposite to the discharging hole of the hopper, the quantitative powder flows into the circular flow channel, when the circular flow channel is away from the discharging hole of the hopper, the powder is discharged from the lower end of the circular flow channel, thereby realizing quantitative feeding; the inner cylinder is sleeved in the circular flow channel of the discharger, the diameter of the inner cylinder is smaller than that of the circular flow channel, the inner cylinder is made into multiple specifications according to the diameter difference, the inner cylinder with a corresponding diameter is selected according to the set discharging amount, and the feeding amount of one time is adjusted.

[0019] The utility model will be explained in detail below in combination with the drawings and examples. DRAWINGS

[0020] Figure 1 is the internal structure schematic diagram of the utility model;

[0021] Figure 2 is the structure schematic diagram of the hopper, the discharger and the supporting plate;

[0022] Figure 3 is the half cutaway schematic view of the discharger;

[0023] Figure 4 is a schematic view of the vertical structure of the discharger.

[0024] In the figure, 1 - shell, 2 - hopper, 3 - discharger, 4 - gear ring, 5 - translation rack, 6 - supporting plate, 7 - circular flow channel, 8 - inner cylinder, 9 - stirring motor, 10 - main shaft, 11 - feeding pipe, 12 - base, 13 - annular frame, 14 - incomplete gear, 15 - plastic annular joint, 16 - discharging pipe. DETAILED DESCRIPTION

[0025] In order to have a clearer understanding of the technical features, purposes and effects of the present application, the specific embodiments of the present application will be described with reference to the accompanying drawings.

[0026] As Figures 1-3 shown, the present application provides a kind of PVC additive production with quantitative feeding device, including cylindrical shell 1, the top of shell 1 is equipped with hopper 2, the bottom of hopper 2 is flatly arranged;

[0027] The lower end of hopper 2 is rotatably installed with circular discharger 3, the circular flow channel 7 is provided with eccentric through hole on the discharger 3 along the axial direction, when rotating, the circular flow channel 7 of discharger 3 is matched with the circular discharging hole of the lower end of hopper 2, when the circular flow channel 7 is opposite to the discharging hole of hopper 2, quantitative powder flows into the circular flow channel 7, when the circular flow channel 7 rotates away from the discharging hole of hopper 2, powder is discharged from the lower end of circular flow channel 7, to realize quantitative feeding.

[0028] Further, the hopper 2 has two, and each hopper 2 is provided with a discharger 3 at the lower end, so that multiple materials can be added quantitatively into the shell 1.

[0029] The lower end of the discharger 3 is fixedly provided with a supporting plate 6, the two ends of the supporting plate 6 are fixed to the inner wall of the shell 1, and the lower end of the rotating shaft of the discharger 3 is rotatably installed on the supporting plate 6.

[0030] The outer side of the discharger 3 is fixedly sleeved with a gear ring 4, the gear ring 4 is engaged with a translation rack 5, the translation rack 5 is horizontally slidably installed on the shell 1, and the translation rack 5 is driven by a translation driving device.

[0031] The translation driving device includes a base 12, an annular frame 13 is slidably installed on the base 12 through a track, the annular frame 13 is fixedly connected to one end of the translation rack 5, driving racks are respectively arranged in parallel at the upper end and the lower end of the annular frame 13, an incomplete gear 14 is arranged between the two driving racks, the incomplete gear 14 is driven to rotate by a driving motor, and the incomplete gear 14 is alternately engaged with one of the two driving racks to drive the annular frame 13 to move back and forth.

[0032] The inner cylinder 8 is sleeved in the circular flow channel 7 of the discharger 3, the diameter of the inner cylinder 8 is smaller than that of the circular flow channel 7, the upper end of the inner cylinder 8 is provided with a flange, and the inner cylinder 8 is fixed in the circular flow channel 7 through the flange.

[0033] The lower end of the plastic annular joint 15 is matched with the upper surface of the discharger 3, so that the leakage of materials is prevented.

[0034] The main shaft 10 is vertically installed in the shell 1, the stirring rod is installed on the periphery of the main shaft 10, the stirring motor 9 is installed on the top of the shell 1, the driving shaft of the stirring motor 9 is fixedly connected with the main shaft 10, and the PVC additive in the shell 1 is stirred.

[0035] The feeding pipe 11 is installed on the top of the shell 1, and the discharging pipe 16 is installed on the bottom of the shell 1.

[0036] The specific working principle of the utility model is as follows:

[0037] The two hoppers 2 are provided with one discharger 3 at the lower end of each hopper 2, so that a plurality of powders can be quantitatively added into the shell 1, the circular flow channel 7 is axially eccentrically and throughly arranged on the discharger 3, when rotating, the circular flow channel 7 of the discharger 3 is matched with the circular discharging hole at the lower end of the hopper 2, when the circular flow channel 7 is opposite to the discharging hole of the hopper 2, the quantitative powder flows into the circular flow channel 7, when the circular flow channel 7 rotates away from the discharging hole of the hopper 2, the powder is discharged from the lower end of the circular flow channel 7, so that the quantitative feeding is realized; the inner cylinder 8 is sleeved in the circular flow channel 7 of the discharger 3, the diameter of the inner cylinder 8 is smaller than that of the circular flow channel 7, the inner cylinder 8 is made into a plurality of specifications according to the diameter, and the inner cylinder 8 with a corresponding diameter is selected according to the set discharging amount, so that the feeding amount of one time is adjusted.

[0038] The above is the example of the best implementation mode of the utility model, wherein the parts not described in detail are the common knowledge of the ordinary skilled in the art. The protection scope of the utility model is subject to the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. A quantitative feeding device for PVC additive production, characterized in that: The application relates to a quantitative powder feeding device, which comprises a cylindrical shell (1), a hopper (2) arranged on the top of the shell (1), and a circular discharger (3) arranged on the lower end of the hopper (2). The lower end of the hopper (2) is rotatably provided with the circular discharger (3), and a circular flow channel (7) is arranged on the circular discharger (3) in an eccentric and axial direction. When the circular flow channel (7) is opposite to the discharging hole of the hopper (2), the powder is quantitatively fed into the circular flow channel (7), and when the circular flow channel (7) is away from the discharging hole of the hopper (2), the powder is discharged from the lower end of the circular flow channel (7), so that the quantitative feeding is realized.

2. The quantitative feeding device for PVC additive production as described in claim 1, characterized in that: The hopper (2) is provided with two hopper (2), and each hopper (2) is provided with a discharger (3) at the lower end.

3. A quantitative feeding device for PVC additive production as described in claim 1, characterized in that: The lower end of the discharger (3) is fixedly provided with a supporting plate (6), and the two ends of the supporting plate (6) are fixed to the inner wall of the shell (1).

4. The quantitative feeding device for PVC additive production according to claim 1, characterized in that: The lower end of the discharger (3) is rotatably arranged on the supporting plate (6).

5. The quantitative feeding device for PVC additive production according to claim 4, characterized in that: The outer side of the discharger (3) is fixedly provided with a gear ring (4), the gear ring (4) is in meshing transmission with a translation gear (5), the translation gear (5) is horizontally slidably arranged on the shell (1), and the translation gear (5) is driven by a translation driving device.

6. A quantitative feeding device for PVC additive production as described in claim 1, characterized in that: The translation driving device comprises a base (12), an annular frame (13) is slidably arranged on the base (12) through a track, one end of the annular frame (13) is fixedly connected with the translation gear (5), driving gears are arranged on the upper end and the lower end of the annular frame (13) in parallel, an incomplete gear (14) is arranged between the two driving gears, and the incomplete gear (14) is driven to rotate by a driving motor.

7. The quantitative feeding device for PVC additive production according to claim 1, characterized in that: The circular flow channel (7) of the discharger (3) is sleeved with an inner cylinder (8), the diameter of the inner cylinder (8) is smaller than that of the circular flow channel (7), the upper end of the inner cylinder (8) is provided with a flange, and the inner cylinder (8) is fixed in the circular flow channel (7) through the flange.

8. The quantitative feeding device for PVC additive production according to claim 1, characterized in that: A plastic annular joint (15) is arranged at the circular discharging hole of the lower end of the hopper (2). A main shaft (10) is vertically arranged in the shell (1), a stirring rod is arranged on the periphery of the main shaft (10), a stirring motor (9) is arranged on the top of the shell (1), and the driving shaft of the stirring motor (9) is fixedly connected with the main shaft (10).

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