Feeding device for PVC pipe production

Abstract

The feeding device for PVC pipe production comprises a hopper and a detachably connected cover body, a discharging pipe is arranged at the bottom of the hopper, a first supporting plate is fixedly arranged on the outer wall of the hopper, and a second supporting plate is arranged in the middle of the lower portion of the first supporting plate. Vibration springs are annularly arranged between the first supporting plate and the second supporting plate at equal intervals, a vibration motor used for shaking the hopper is installed outside the hopper, and a drainage assembly used for conducting drainage on PVC powder is arranged outside the discharging pipe. By means of the mode that shaking, stirring and drainage are combined, on one hand, caking of PVC powder can be avoided, the PVC powder is evenly fed, on the other hand, the possibility that the PVC powder is blocked in the discharging pipe can be reduced, and continuous conveying of the PVC powder is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe production, in particular to a feeding device for PVC pipe production. Background Art

[0002] Polyvinyl chloride, abbreviated as PVC in English, is the third largest synthetic polymer plastic in the world. PVC is a polymer formed by the free radical polymerization mechanism of vinyl chloride monomer (VCM) in the presence of initiators such as peroxides and azo compounds or under the action of light or heat. There are two types of PVC: hard and soft. Among them, hard PVC is not only used for building pipes, doors and windows, but also for making plastic bottles, packaging, bank cards or membership cards. In addition, adding plasticizers can make PVC softer and more flexible, and it can be used for pipes, cable insulation, flooring, signs, phonograph records, inflatable products and rubber substitutes.

[0003] At present, in the production process of PVC pipes, workers need to use a feeding device to add PVC powder into a screw feeder, and then use the screw feeder to transport the PVC powder to a molding device. However, due to the small particle size of the PVC powder, the overall density of the PVC powder pile is relatively large. In addition, the PVC powder particles themselves are sticky, which makes it easy for agglomeration and blockage to occur at the outlet of the existing feeding device, resulting in easy interruption in the transportation process of the PVC powder. Therefore, a feeding device for PVC pipe production is provided. Utility Model Content

[0004] The utility model aims to provide a feeding device for PVC pipe production to solve the technical problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: a feeding device for PVC pipe production, comprising a hopper and a detachably connected cover body, a discharge pipe is arranged at the bottom of the hopper, a first support plate is fixedly arranged on the outer wall of the hopper, a second support plate is arranged at the middle part below the first support plate, vibration springs are arranged in a circular shape with equal intervals between the first support plate and the second support plate, a vibration motor for shaking the hopper is installed on the outside of the hopper, a transmission shaft is arranged inside the hopper, and a vibration spring for shaking the hopper is arranged on the outer wall of the transmission shaft. The invention relates to a hinged blade for conveying and turning the stored PVC powder, a drainage component for draining the PVC powder is arranged on the outside of the discharge pipe, and the drainage component comprises an annular tube detachably mounted on the outer wall of the hopper at the position of the discharge pipe, and a guide tube arranged below the annular tube, oblique inserts are arranged in a circular shape at equal intervals on the outside of the annular tube, the bottom ends of the oblique inserts extend to the inside of the discharge pipe, a third turbine fan is installed inside the guide tube, a wind condensing hood is detachably arranged in the middle of the top end of the guide tube, and a switching tube is arranged on the top of the wind condensing hood.

[0006] Preferably, the discharge pipe and the hopper are integrally formed, and a telescopic tube is provided in the middle of the bottom end of the discharge pipe, the top opening of the discharge pipe is connected to the bottom opening of the hopper, and the bottom opening of the discharge pipe is connected to the top opening of the telescopic tube, the top end of the telescopic tube is connected to the bottom end of the discharge pipe, and the bottom end of the telescopic tube is connected to the inlet end of the screw feeder.

[0007] Preferably, one end of the vibration spring is connected to the first support plate, and the other end of the vibration spring is connected to the second support plate, the bottom end of the second support plate is provided with feet installed in a ring shape with equal intervals, the hinged blade is integrally formed with the transmission shaft, the transmission shaft is rotatably connected to the cover body through a bearing, the bottom end of the transmission shaft extends to the inside of the discharge pipe, the transmission shaft is coaxial with the hopper, and the top end of the transmission shaft is connected and assembled to the output end of the external drive motor through a reducer.

[0008] Preferably, the inner cavity of the oblique tube is connected with the inner cavity of the discharge pipe, and the outer wall of the guide tube is provided with a bearing plate for supporting and fixing the guide tube, one end of the bearing plate is connected to the guide tube, and the other end of the bearing plate is connected to the discharge pipe, the inner cavity of the guide tube, the inner cavity of the wind collecting hood, the inner cavity of the transfer tube, the inner cavity of the annular tube, and the inner cavity of the oblique tube are connected, and the wind collecting hood, the transfer tube, the annular tube, and the oblique tube are integrally formed.

[0009] Preferably, a feeding port is opened through the top of the cover body, and a first air guide tube and a second air guide tube are respectively provided at both ends of the interior of the cover body, the bottom end of the first air guide tube extends to the interior of the hopper, and a first turbine fan is installed inside the first air guide tube.

[0010] Preferably, a heating wire for heating the introduced gas is wound around the inner wall of the first air guide tube, the bottom end of the second air guide tube extends to the interior of the hopper, and a second turbine blower is installed inside the second air guide tube.

[0011] The utility model of a feeding device for PVC pipe production has the following advantages:

[0012] 1. The utility model can prevent PVC powder from agglomerating and evenly feed the PVC powder through the cooperation of the hopper, the first support plate, the second support plate, the vibration spring, the discharge pipe, the telescopic pipe, the vibration motor, the twisted blade, the transmission shaft, the reducer, the drive motor and the drainage component, and can also prevent PVC powder from agglomerating and evenly feed the PVC powder through the combination of shaking, stirring and drainage. On the other hand, it can reduce the possibility of PVC powder being blocked in the discharge pipe, thereby ensuring the continuous transportation of PVC powder and avoiding interruption.

[0013] 2. The utility model can reduce the moisture inside the hopper and improve the fluidity of PVC powder by the mutual cooperation of the first air guide tube, the heating wire, the first turbine fan, the second air guide tube and the second turbine fan, and by using a circulating blowing method. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

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

[0016] Figure 2 It is a planar structural sectional view of the utility model;

[0017] Figure 3 It is a partial structural sectional view of the utility model.

[0018] Explanation of the marks in the figure: 1. Hopper; 101. First support plate; 102. Second support plate; 103. Support foot; 104. Vibration spring; 105. Discharge pipe; 106. Telescopic pipe; 107. Vibration motor; 108. Hinge blade; 109. Transmission shaft; 110. Speed ​​reducer; 111. Driving motor; 2. Cover; 201. Feeding port; 202. First air guide tube; 203. Heating wire; 204. First turbine fan; 205. Second air guide tube; 206. Second turbine fan; 3. Screw feeder; 4. Drainage assembly; 401. Carrying plate; 402. Third turbine fan; 403. Guide tube; 404. Wind hood; 405. Transfer tube; 406. Annular tube; 407. Oblique insert. DETAILED DESCRIPTION

[0019] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0020] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0022] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0023] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0024] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of a feeding device for PVC pipe production of the utility model in conjunction with the accompanying drawings.

[0025] like Figure 1-3As shown, the utility model is a feeding device for PVC pipe production, comprising a hopper 1 and a detachably connected cover body 2, the hopper 1 is used to store PVC powder, a discharge pipe 105 is arranged at the bottom of the hopper 1, the discharge pipe 105 and the hopper 1 are integrally formed, a telescopic tube 106 is arranged in the middle of the bottom end of the discharge pipe 105, which is used to cooperate with the discharge pipe 105 to add the stored PVC powder into the screw feeder 3, the top opening of the discharge pipe 105 is communicated with the bottom opening of the hopper 1, and the bottom opening of the discharge pipe 105 is communicated with the top opening of the telescopic tube 106, the top end of the telescopic tube 106 is connected to the bottom end of the discharge pipe 105, and the bottom end of the telescopic tube 106 is connected to the inlet end of the screw feeder 3, and a drainage component 4 for draining the PVC powder is arranged on the outside of the discharge pipe 105.

[0026] Specifically, a first support plate 101 is fixedly provided on the outer wall of the hopper 1, a second support plate 102 is provided in the middle below the first support plate 101, vibration springs 104 are provided in a circular shape with equal intervals between the first support plate 101 and the second support plate 102, one end of the vibration spring 104 is connected to the first support plate 101, and the other end of the vibration spring 104 is connected to the second support plate 102, and legs 103 are provided in a circular shape with equal intervals on the bottom end of the second support plate 102, a vibration motor 107 for shaking the hopper 1 is installed on the outside of the hopper 1, a transmission shaft 109 is provided inside the hopper 1, the transmission shaft 109 is coaxial with the hopper 1, and a twisted blade 108 for conveying and turning the stored PVC powder is provided on the outer wall of the transmission shaft 109, the twisted blade 108 is integrally formed with the transmission shaft 109, and the transmission shaft 109 It is rotatably connected to the cover body 2 through a bearing, and the bottom end of the transmission shaft 109 extends to the inside of the discharge pipe 105. The top end of the transmission shaft 109 is connected and assembled with the output end of the external drive motor 111 through a reducer 110. A feeding port 201 is provided through the top of the cover body 2, and a first air guide tube 202 and a second air guide tube 205 are respectively provided at both ends of the inside of the cover body 2. The bottom end of the first air guide tube 202 extends to the inside of the hopper 1, and a first turbine fan 204 is installed inside the first air guide tube 202 for introducing external air into the hopper 1. A heating wire 203 for heating the introduced gas is wound around the inner wall of the first air guide tube 202, and the bottom end of the second air guide tube 205 extends to the inside of the hopper 1, and a second turbine fan 206 is installed inside the second air guide tube 205 for leading the moisture inside the hopper 1 out of the hopper 1.

[0027] Specifically, the drainage assembly 4 includes an annular tube 406 detachably mounted on the outer wall of the hopper 1 at the position of the discharge pipe 105, which is used to gather the gas, and a guide tube 403 arranged below the annular tube 406. The outer part of the annular tube 406 is provided with oblique inserts 407 at equal intervals in a ring shape, which are used to transport the gathered gas to the discharge pipe 105. The bottom end of the oblique insert 407 extends to the inside of the discharge pipe 105, and the inner cavity of the oblique insert 407 is connected to the inner cavity of the discharge pipe 105. The outer wall of the guide tube 403 is provided with a bearing plate 401 for supporting and fixing the guide tube 403, and one end of the bearing plate 401 is connected to the guide tube 403. The other end of the supporting plate 401 is connected to the discharge pipe 105, and a third turbine fan 402 is installed inside the guide tube 403. A wind collecting hood 404 is detachably provided in the middle of the top end of the guide tube 403, and a transfer tube 405 is provided on the top of the wind collecting hood 404, which is used to cooperate with the third turbine fan 402, the third turbine fan 402 and the wind collecting hood 404 to inject external gas into the annular tube 406. The inner cavity of the guide tube 403, the inner cavity of the wind collecting hood 404, the inner cavity of the transfer tube 405, the inner cavity of the annular tube 406, and the inner cavity of the oblique insert tube 407 are connected, and the wind collecting hood 404, the transfer tube 405, the annular tube 406, and the oblique insert tube 407 are integrally formed.

[0028] According to the above, the utility model can prevent the PVC powder from agglomerating and evenly feed the PVC powder through the cooperation of the hopper 1, the first support plate 101, the second support plate 102, the vibration spring 104, the discharge pipe 105, the telescopic tube 106, the vibration motor 107, the twisted blade 108, the transmission shaft 109, the reducer 110, the drive motor 111 and the drainage component 4, and can reduce the possibility of clogging of the PVC powder in the discharge pipe 105, ensure the continuous transportation of the PVC powder and avoid interruption through the cooperation of the first air guide tube 202, the heating wire 203, the first turbine fan 204, the second air guide tube 205 and the second turbine fan 206, and can reduce the moisture inside the hopper 1 and improve the fluidity of the PVC powder by circulating blowing.

[0029] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A feeding device for PVC pipe production, comprising a hopper (1) and a detachably connected cover (2), characterized in that: A discharge pipe (105) is arranged at the bottom of the hopper (1), a first support plate (101) is fixedly arranged on the outer wall of the hopper (1), a second support plate (102) is arranged in the middle below the first support plate (101), vibration springs (104) are arranged in a ring shape at equal intervals between the first support plate (101) and the second support plate (102), a vibration motor (107) for shaking the hopper (1) is installed on the outside of the hopper (1), a transmission shaft (109) is arranged inside the hopper (1), and a twisting blade (108) for conveying and turning the stored PVC powder is arranged on the outer wall of the transmission shaft (109), and the outside of the discharge pipe (105) is provided with a plurality of springs (104) for shaking the hopper (1). A drainage assembly (4) for draining PVC powder is provided, the drainage assembly (4) comprising an annular tube (406) detachably mounted on the outer wall of the hopper (1) at the position of the discharge pipe (105), and a guide tube (403) arranged below the annular tube (406), the outer portion of the annular tube (406) being provided with oblique inserts (407) at equal intervals in a ring shape, the bottom ends of the oblique inserts (407) extending into the interior of the discharge pipe (105), a third turbine fan (402) being installed inside the guide tube (403), a wind collecting hood (404) being detachably mounted in the middle of the top end of the guide tube (403), and a transfer tube (405) being arranged at the top of the wind collecting hood (404).

2. A feeding device for PVC pipe production according to claim 1, characterized in that: The discharge pipe (105) is integrally formed with the hopper (1); a telescopic tube (106) is provided in the middle of the bottom end of the discharge pipe (105); the top opening of the discharge pipe (105) is communicated with the bottom opening of the hopper (1), and the bottom opening of the discharge pipe (105) is communicated with the top opening of the telescopic tube (106); the top end of the telescopic tube (106) is connected to the bottom end of the discharge pipe (105), and the bottom end of the telescopic tube (106) is connected to the inlet end of the screw feeder (3).

3. A feeding device for PVC pipe production according to claim 1, characterized in that: One end of the vibration spring (104) is connected to the first support plate (101), and the other end of the vibration spring (104) is connected to the second support plate (102); the bottom end of the second support plate (102) is provided with support feet (103) at equal intervals in a ring shape; the hinged blade (108) and the transmission shaft (109) are integrally formed; the transmission shaft (109) is rotatably connected to the cover body (2) via a bearing; the bottom end of the transmission shaft (109) extends to the inside of the discharge pipe (105); the transmission shaft (109) is coaxial with the hopper (1); the top end of the transmission shaft (109) is connected and assembled to the output end of an external drive motor (111) via a reducer (110).

4. A feeding device for PVC pipe production according to claim 1, characterized in that: The inner cavity of the oblique insert tube (407) is connected to the inner cavity of the discharge tube (105); the outer wall of the guide tube (403) is provided with a bearing plate (401) for supporting and fixing the guide tube (403); one end of the bearing plate (401) is connected to the guide tube (403), and the other end of the bearing plate (401) is connected to the discharge tube (105); the inner cavity of the guide tube (403), the inner cavity of the wind collecting hood (404), the inner cavity of the transfer tube (405), the inner cavity of the annular tube (406), and the inner cavity of the oblique insert tube (407) are connected; the wind collecting hood (404), the transfer tube (405), the annular tube (406), and the oblique insert tube (407) are integrally formed.

5. A feeding device for PVC pipe production according to claim 1, characterized in that: A feeding port (201) is provided through the top of the cover body (2), and a first air guide tube (202) and a second air guide tube (205) are respectively provided at two ends of the interior of the cover body (2), the bottom end of the first air guide tube (202) extends to the interior of the hopper (1), and a first turbine fan (204) is installed inside the first air guide tube (202).

6. A feeding device for PVC pipe production according to claim 5, characterized in that: The inner wall of the first air guide tube (202) is wound with a heating wire (203) for heating the introduced gas, the bottom end of the second air guide tube (205) extends to the inside of the hopper (1), and the inside of the second air guide tube (205) is installed with a second turbine fan (206).

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