Feeding system of plastic extruder

Abstract

The utility model relates to the field of plastic extruder feeding equipment, in particular to a plastic extruder feeding system which comprises a feeding mechanism, a weighing mechanism connected to one side of the feeding mechanism and a discharging mechanism connected to the bottom of the weighing mechanism. The weighing mechanism comprises a material box, a metering scale arranged in the material box, a block-up seat connected above the metering scale and an arc-shaped hopper arranged above the block-up seat, a first discharging pipe is arranged at the bottom of the arc-shaped hopper, and a first electric valve is arranged at the bottom of the first discharging pipe; the discharging mechanism comprises an anti-blocking conveying device and a discharging pipe connected to the bottom of one side of the anti-blocking conveying device, and a second electric valve is arranged in the discharging pipe. The utility model aims to provide the feeding system of the plastic extruder, which is efficient and stable in feeding.

Description

Technical Field

[0001] The utility model relates to the field of plastic extruder feeding equipment, in particular to a plastic extruder feeding system. Background Art

[0002] Plastic molding is an important step in converting plastic raw materials into products. Extrusion molding is one of the important molding methods of plastic molding, which generally uses an extruder. The working mechanism of the extruder is to rely on the pressure and shear force generated by the rotation of the screw, which can fully plasticize and evenly mix the materials and form them through the die; so sometimes using an extruder can simultaneously complete a series of processes such as mixing, plasticizing and molding, thereby carrying out continuous production.

[0003] During the use of the extruder, depending on the structure of the feeding point and the raw materials, the feeding may be intermittent and discontinuous, and the feeding cannot be stable. The feeding efficiency is affected, thereby affecting the working efficiency of the entire extruder. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a plastic extruder feeding system with high efficiency and stable feeding.

[0005] The utility model adopts the following technical solutions:

[0006] A feeding system for a plastic extruder comprises a feeding mechanism, a weighing mechanism connected to one side of the feeding mechanism and a discharging mechanism connected to the bottom of the weighing mechanism; the weighing mechanism comprises a material box, a weighing scale arranged inside the material box, a raised seat connected to the top of the weighing scale and an arc-shaped hopper arranged above the raised seat, a first discharge pipe is arranged at the bottom of the arc-shaped hopper, and a first electric valve is arranged at the bottom of the first discharge pipe; the discharging mechanism comprises an anti-blocking conveying device, a discharging pipe connected to the bottom of one side of the anti-blocking conveying device, and a second electric valve is arranged inside the discharging pipe.

[0007] A further improvement to the above technical solution is that the feeding mechanism includes a feeding fan, a first feeding pipe and a second feeding pipe respectively connected to both ends of the feeding fan, the first feeding pipe is connected to a storage bin at one end away from the feeding fan, and the second feeding pipe is connected to the upper end of the material box at one end away from the feeding fan.

[0008] A further improvement to the above technical solution is that a mounting groove is formed above the weighing scale and in the center of the raised seat, and the mounting groove is used for the bottom of the arc hopper to pass through.

[0009] A further improvement to the above technical solution is that a feeding port is provided at the bottom of the installation groove, and the feeding port is connected to the anti-blocking conveying device.

[0010] A further improvement to the above technical solution is that the diameter of the feeding port is larger than the diameter of the first feeding tube, and the bottom of the first feeding tube extends into the feeding port.

[0011] A further improvement to the above technical solution is that the central portion of the arc-shaped hopper is recessed downward and provided with a collecting arc surface, and the collecting arc surface is connected to the first discharge pipe.

[0012] A further improvement to the above technical solution is that outer edges at both ends of the arc-shaped hopper are respectively provided with clamping edges, and the clamping edges are connected to the raising seat.

[0013] A further improvement to the above technical solution is that the anti-blocking conveying device includes a shell, a driving motor arranged on the outside of one side of the shell, and a stirring paddle connected to the driving motor, and the bottom of one side of the shell is connected to the top of the discharge pipe.

[0014] A further improvement to the above technical solution is that a second feeding pipe is connected to the side of the shell facing away from the discharge pipe, and the second feeding pipe is connected to the feeding port.

[0015] A further improvement to the above technical solution is that a plurality of inclined plates are alternately arranged above the second electric valve, one end of the inclined plate is fixed to the inner wall of the discharge pipe, and two adjacent inclined plates arranged vertically are located on opposite sides.

[0016] The beneficial effects of the utility model are:

[0017] The utility model is provided with a feeding mechanism, a weighing mechanism and a discharging mechanism, which is convenient for controlling the amount of material added. When in use, the feeding fan is started, and the feeding fan sucks the material from the discharging bin into the weighing mechanism, the material gathers above the arc hopper, and the first electric valve is opened to slowly add the material into the anti-blocking conveying device, and after mixing and stirring to avoid material blockage, the material falls into the discharging pipe, and the falling speed of the material is further slowed down under the action of the inclined plate of the discharging pipe, and the second electric valve is opened to add the material to the extruder, and the feeding is completed, which effectively improves the stability of the feeding and improves the feeding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the feeding system of the plastic extruder of the utility model;

[0019] Figure 2 for Figure 1 The schematic diagram of the structure of the weighing scale, the raised base and the arc hopper of the feeding system of the plastic extruder;

[0020] Figure 3 for Figure 2 A partial enlarged view of the circle A of the weighing scale, the raised base and the curved hopper;

[0021] Figure 4 for Figure 1 Schematic diagram of the structure of the discharging mechanism of the feeding system of the plastic extruder. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that the terms "vertical direction", "upper", "lower", "horizontal" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] like Figures 1 to 4 As shown, a feeding system for a plastic extruder includes a feeding mechanism 10, a weighing mechanism 20 connected to one side of the feeding mechanism 10, and a discharging mechanism 30 connected to the bottom of the weighing mechanism 20; the weighing mechanism 20 includes a material box 21, a weighing scale 22 arranged inside the material box 21, a raised seat 23 connected above the weighing scale 22, and an arc hopper 24 arranged above the raised seat 23, a first discharge pipe 25 is provided at the bottom of the arc hopper 24, and a first electric valve 26 is provided at the bottom of the first discharge pipe 25; the discharging mechanism 30 includes an anti-blocking conveying device 40, a discharging pipe 50 connected to the bottom of one side of the anti-blocking conveying device 40, and a second electric valve 51 is provided inside the discharging pipe 50.

[0026] Furthermore, if Figure 1As shown, the feeding mechanism 10 includes a feeding fan 11, a first feeding pipe 12 and a second feeding pipe 13 respectively connected to both ends of the feeding fan 11, the first feeding pipe 12 is connected to a storage bin (not shown in the figure) at one end away from the feeding fan 11, and the second feeding pipe 13 is connected to the upper end of the material box 21 at one end away from the feeding fan 11. When adding materials, the feeding fan 11 is started, and the feeding fan 11 sucks materials from the storage bin (not shown in the figure) into the weighing mechanism 20, and the materials gather above the weighing scale 22, so that the materials can be weighed.

[0027] Furthermore, if Figure 2 As shown, a mounting groove 60 is formed above the weighing scale 22 and in the center of the raised seat 23, and the mounting groove 60 is used for the bottom of the arc hopper 24 to pass through. Such a configuration facilitates the arc hopper 24 and the first feeding pipe 25 to be inserted into the mounting groove 60, effectively ensuring the stability of weighing and realizing controlled feeding.

[0028] Furthermore, if Figure 2 and Figure 3 As shown, a feeding port 61 is provided at the bottom of the installation groove 60, and the feeding port 61 is connected to the anti-blocking conveying device 40. With such a configuration, the material weighed by the weighing scale 22 passes through the first feeding pipe 25 and the feeding port 61 in sequence, and smoothly enters the anti-blocking conveying device 40, thereby improving the feeding efficiency.

[0029] Furthermore, if Figure 3 As shown, the diameter of the feeding port 61 is larger than the diameter of the first feeding tube 25, and the bottom of the first feeding tube 25 extends into the feeding port 61. In this way, the material passing through the first feeding tube 25 effectively enters the feeding port 61, avoiding the waste of materials and effectively reducing the production cost.

[0030] Furthermore, if Figure 2 and Figure 3 As shown, the central part of the arc hopper 24 is recessed downward to provide a collecting arc surface 27, and the collecting arc surface 27 is connected to the first discharge pipe 25; the outer edges of both ends of the arc hopper 24 are respectively provided with clamping edges 28, and the clamping edges 28 are connected to the raised seat 23. The central part of the hopper is provided with a collecting arc surface 27 of an arc structure, so that it has the function of guiding and converging, so that the material can be collected into the first discharge pipe 25 in the center and discharged through the first discharge pipe 25. The first electric valve 26 controls the conduction or cutoff of the first discharge pipe 25, and the clamping edge 28 is used to limit the installation of the arc hopper 24, and the stability is high.

[0031] Furthermore, if Figure 4As shown, the anti-blocking conveying device 40 includes a housing 41, a driving motor 42 disposed outside one side of the housing 41, and a stirring paddle 43 connected to the driving motor 42. The bottom of one side of the housing 41 is connected to the top of the discharge pipe 50. In this way, the driving motor 42 drives the stirring paddle 43 to rotate and mix and stir the materials entering therein, preventing the phenomenon of intermittent feeding due to blockage, thereby improving the feeding efficiency.

[0032] Furthermore, if Figure 4 As shown, the housing 41 is connected to a second feeding pipe 44 on one side away from the discharge pipe 50, and the second feeding pipe 44 is connected to the feeding port 61. This arrangement facilitates the feeding of materials to the anti-blocking conveying device 40, avoids intermittent feeding, and improves feeding efficiency.

[0033] Furthermore, if Figure 4 As shown, a plurality of inclined plates 52 are staggered above the second electric valve 51, one end of each inclined plate 52 is fixed to the inner wall of the discharge pipe 50, and two adjacent inclined plates 52 arranged up and down are located on opposite sides. When feeding, the material falls, and the inclined plates 52 continuously block the material and consume the kinetic energy of the material. At this time, the second electric valve 51 is opened, so that the material is in a relatively flat state when it falls to the extruder, effectively slowing down the feeding speed.

[0034] The utility model is provided with a feeding mechanism 10, a weighing mechanism 20 and a discharging mechanism 30, which are convenient for controlling the amount of material added. When in use, the feeding fan 11 is started, and the feeding fan 11 sucks the material from the storage bin (not shown in the figure) into the weighing mechanism 20, and the material gathers above the arc hopper 24, and the first electric valve 26 is opened, and the material is slowly added to the anti-blocking conveying device 40. After mixing and stirring to avoid material blockage, the material falls into the discharging pipe 50. Under the action of the inclined plate 52 of the discharging pipe 50, the falling speed of the material is further slowed down, and the second electric valve 51 is opened to add the material to the extruder to complete the feeding, which effectively improves the stability of the feeding and improves the feeding efficiency.

[0035] The above only expresses the preferred technical solution of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and the utility model is also intended to include these modifications and modifications.

Claims

1. A plastic extruder feeding system, characterized in that: It includes a feeding mechanism, a weighing mechanism connected to one side of the feeding mechanism, and a discharging mechanism connected to the bottom of the weighing mechanism; the weighing mechanism includes a material box, a weighing scale arranged inside the material box, a raised seat connected to the top of the weighing scale, and an arc-shaped hopper arranged above the raised seat, a first discharge pipe is provided at the bottom of the arc-shaped hopper, and a first electric valve is provided at the bottom of the first discharge pipe; the discharging mechanism includes an anti-blocking conveying device, a discharging pipe connected to the bottom of one side of the anti-blocking conveying device, and a second electric valve is provided inside the discharging pipe.

2. The plastic extruder feeding system according to claim 1, characterized in that: The feeding mechanism includes a feeding fan, a first feeding pipe and a second feeding pipe respectively connected to the two ends of the feeding fan, the first feeding pipe is connected to a storage bin at one end away from the feeding fan, and the second feeding pipe is connected to the upper end of the material box at one end away from the feeding fan.

3. The plastic extruder feeding system according to claim 1, characterized in that: An installation groove is formed above the weighing scale and in the center of the raised seat, and the installation groove is used for the bottom of the arc hopper to pass through.

4. The plastic extruder feeding system according to claim 3, characterized in that: A feeding port is provided at the bottom of the installation groove, and the feeding port is communicated with the anti-blocking conveying device.

5. The plastic extruder feeding system according to claim 4, characterized in that: The diameter of the feeding port is greater than the diameter of the first feeding tube, and the bottom of the first feeding tube extends into the feeding port.

6. The plastic extruder feeding system according to claim 1, characterized in that: The central part of the arc hopper is recessed downwards and is provided with a collecting arc surface, and the collecting arc surface is communicated with the first discharge pipe.

7. The plastic extruder feeding system according to claim 6, characterized in that: The outer edges of both ends of the arc hopper are respectively provided with clamping edges, and the clamping edges are connected to the raising seat.

8. The plastic extruder feeding system according to claim 1, characterized in that: The anti-blocking conveying device includes a shell, a driving motor arranged outside one side of the shell, and a stirring paddle connected to the driving motor. The bottom of one side of the shell is connected to the top of the discharge pipe.

9. The plastic extruder feeding system according to claim 8, characterized in that: A second feeding pipe is provided on one side of the shell body away from the discharge pipe, and the second feeding pipe is connected to the feeding port.

10. The plastic extruder feeding system according to claim 1, characterized in that: The second A plurality of inclined plates are arranged above the electric valve in an interlaced manner, one end of each inclined plate is fixed to the inner wall of the discharge pipe. Two adjacent inclined plates arranged up and down are located at opposite sides.

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