Raw material mixing and conveying device for extruder

Abstract

The utility model relates to the technical field of extruder raw material conveying, in particular to a raw material mixing and conveying device for an extruder, which comprises a shell and a heating mechanism arranged on the shell, a material pushing mechanism is arranged in the shell, a transposition mechanism comprises four supports, a spring is clamped between a limiting column and a fixing plate, and the limiting column and the fixing plate are arranged on the support. A connecting shell is fixed to the bottom of a movable plate with an opening in the surface, the shell communicates with a first connecting pipe and a second connecting pipe, the connecting shell abuts against the first connecting pipe, a mounting plate is fixed to the interior of the first connecting pipe, a second spiral blade is rotationally connected to the mounting plate, a plug of a hexagonal prism structure is fixed to the second spiral blade, and a feeding mechanism is fixed to the movable plate. The feeding mechanism is provided with the stirring mechanism, the stirring mechanism comprises a sleeve, the sleeve is inserted into the plug, a connecting pipeline between the funnel and the extruder can be replaced according to different raw materials, and the discharging speed of different types of raw materials is guaranteed.

Description

Technical Field

[0001] This utility model relates to a raw material mixing and conveying device, specifically a raw material mixing and conveying device for an extruder, belonging to the field of raw material conveying technology for extruders. Background Technology

[0002] An extruder is a widely used piece of equipment for processing materials such as plastics and rubber. It is mainly used to heat polymer compounds to a molten state and then, through the extrusion action of a screw or plunger, continuously shape them through a die to produce continuous profiles with a constant cross-sectional shape. Extruders are widely used in plastics, rubber, food, ceramics, construction and other fields. The raw materials for extruders are generally plastics, rubber and ceramics.

[0003] Current extruder raw material mixing and conveying devices add raw materials into the hopper during material conveying. The hopper is equipped with a stirring mechanism to mix the raw materials. After mixing, the raw materials are conveyed to the extruder through a connecting pipe. Inside the connecting pipe between the extruder and the hopper, there is a small spiral blade for secondary mixing of the raw materials. The small spiral blade, which is directly welded to the stirring rod, is located inside the connecting pipe and is inconvenient to remove. Some relatively regular raw materials do not require mixing by the small spiral blade. When this type of raw material is conveyed by mixing by the small blade inside the connecting pipe, it affects the speed at which the raw material descends, causing the raw material to fail to connect properly or even block the connecting pipe. Utility Model Content

[0004] The purpose of this invention is to provide a raw material mixing and conveying device for an extruder to solve the above problems. It is equipped with a connecting pipe between the funnel and the extruder that can be changed according to different raw materials, so as to ensure the feeding speed of different types of raw materials.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a raw material mixing and conveying device for an extruder, comprising a housing and a heating mechanism mounted on the housing, a pushing mechanism installed inside the housing, a shifting mechanism mounted on the housing, the shifting mechanism comprising four supports, four supports fixedly mounted on the housing, a fixed plate fixedly mounted on the four supports, a movable plate slidably connected to the fixed plate, two opposing grooves formed on the fixed plate, two limiting posts welded to the movable plate slidably connected inside each of the two grooves, and a spring clamped between the limiting posts and the fixed plate. The fixed plate has two sets of rectangular fixing holes. The movable plate and the fixed plate are fixedly connected by bolts through the fixing holes. The bottom of the movable plate with an open surface is fixed with a connecting shell. The outer shell is connected to a connecting pipe one and a connecting pipe two. The connecting shell abuts against the connecting pipe one. The inside of the connecting pipe one is fixed with an mounting plate. The mounting plate is rotatably connected with a spiral blade two. A hexagonal prism plug is fixed on the spiral blade two. The movable plate is fixed with a feeding mechanism. The feeding mechanism is equipped with a stirring mechanism. The stirring mechanism includes a sleeve. The sleeve is inserted into the plug.

[0006] Preferably, the side of the fixing plate has a U-shaped structure, and the distance between the top of the fixing plate and the surface of the movable plate is greater than the length of the plug inside the sleeve.

[0007] Preferably, the switching mechanism further includes a limiting plate, and two sets of limiting plates are welded to each other on the inner wall of the fixed plate.

[0008] Preferably, the length of the movable plate is equal to the internal width of the fixed plate, and the side wall of the fixed plate abuts against the side wall of the limiting plate.

[0009] Preferably, the feeding mechanism includes a funnel, the funnel is fixedly connected to the moving plate, and two feeding pipes are connected to each other on the funnel.

[0010] Preferably, the stirring mechanism includes a second motor, which is installed at the top center of the funnel. The output end of the second motor is connected to a rotating shaft, and two sets of stirring blades are installed on the rotating shaft. The sleeve is welded to the rotating shaft.

[0011] Preferably, the pushing mechanism includes a motor, the motor is installed at the end of the housing, and a spiral blade is provided inside the housing, the spiral blade being connected to the output end of the motor.

[0012] Preferably, the heating mechanism includes heating elements, and the outer shell is provided with multiple sets of heating elements, with two opposing heating elements in a semi-circular structure being fixedly connected by screws.

[0013] Preferably, the heating mechanism further includes a support base, and two support bases are fixedly connected to the outer casing.

[0014] The beneficial effects of this utility model are as follows: When conveying small raw materials that do not require secondary mixing, two raw materials are added to the inside of the feeding mechanism. However, in this case, connecting pipe two is selected for conveying. When connecting the connecting shell to connecting pipe two, the screws on the moving plate are removed. At this time, the moving plate can move horizontally and vertically. Hold the handles on both sides of the moving plate and pull the moving plate towards the top of the fixed plate. The limiting column also rises, and the four springs retract. As the moving plate rises, the sleeve at the bottom of the rotating shaft gradually separates from the plug on the spiral blade two. Move the entire moving plate towards the top of connecting pipe two. When the moving plate abuts against the limiting plate on one side of the connecting pipe two, the moving plate can be released. The moving plate abuts against the inside of the fixed plate. At this time, the screws can be threaded into the fixing hole to complete the fixation of the moving plate. There is no spiral blade two inside the connecting pipe two. The mixing mechanism will only mix the material once. After mixing, it falls directly into the inside of the connecting pipe two without affecting the feeding speed or causing blockage, thus avoiding the failure of raw material connection. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the connection structure of the connecting pipe 1, the spiral blade 2, and the outer shell of this utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure of the fixed plate, the movable plate, and the connecting shell of this utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure of the spiral blade, sleeve, and plug of this utility model;

[0019] Figure 5 This is a schematic diagram of the connection structure of the rotating shaft, sleeve and moving plate of this utility model.

[0020] In the diagram: 1. Outer shell; 2. Heating mechanism; 201. Heating element; 202. Support base; 3. Pushing mechanism; 301. Motor 1; 302. Spiral blade 1; 4. Changing mechanism; 401. Bracket; 402. Fixing plate; 403. Connecting pipe 1; 404. Connecting pipe 2; 405. Moving plate; 406. Fixing hole; 407. Spiral blade 2; 408. Limiting plate; 409. Slide groove; 410. Limiting post; 411. Spring; 412. Connecting shell; 413. Plug; 414. Mounting plate; 5. Feeding mechanism; 501. Funnel; 502. Feeding pipe; 6. Stirring mechanism; 601. Motor 2; 602. Rotating shaft; 603. Stirring blade; 604. Sleeve. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5 As shown, a raw material mixing and conveying device for an extruder includes a housing 1 and a heating mechanism 2 mounted on the housing 1. A pushing mechanism 3 is installed inside the housing 1, and a shifting mechanism 4 is mounted on the housing 1. The shifting mechanism 4 includes four supports 401, which are fixed to the housing 1. A fixed plate 402 is fixed to each of the four supports 401. A moving plate 405 is slidably connected to the fixed plate 402. Two opposing grooves 409 are formed on the fixed plate 402. Two limiting posts 410, welded to the moving plate 405, are slidably connected inside each of the two grooves 409. A spring 411 is clamped between the limiting posts 410 and the fixed plate 402. Two sets of rectangular structures are provided on the fixed plate 402. The moving plate 405 and the fixed plate 402 are fixedly connected by bolts through the fixing hole 406. The bottom of the moving plate 405, which has an open surface, is fixed with a connecting shell 412. The outer shell 1 is connected to a connecting pipe 1 403 and a connecting pipe 2 404. The connecting shell 412 abuts against the connecting pipe 1 403. The inside of the connecting pipe 1 403 is fixed with an mounting plate 414. The mounting plate 414 is rotatably connected with a spiral blade 2 407. The spiral blade 2 407 is fixed with a hexagonal prism plug 413. The moving plate 405 is fixed with a feeding mechanism 5. The feeding mechanism 5 is provided with a stirring mechanism 6. The stirring mechanism 6 includes a sleeve 604. The sleeve 604 is inserted into the plug 413.

[0023] As a technical optimization of this utility model, the side of the fixing plate 402 is U-shaped, and the distance between the inner top of the fixing plate 402 and the surface of the moving plate 405 is greater than the length of the plug 413 inside the sleeve 604. This can prevent the sleeve 604 from not being pulled out from the outer wall of the plug 413 when the moving plate 405 is in contact with the inner bottom of the fixing plate 402.

[0024] As a technical optimization of this utility model, the switching mechanism 4 further includes a limiting plate 408. Two sets of limiting plates 408 are welded to the inner wall of the fixed plate 402. When the side wall of the moving plate 405 abuts against the limiting plate 408, the position of the connecting shell 412 and the connecting pipe 1 403 or the connecting pipe 2 404 can be determined for quick docking.

[0025] As a technical optimization of this utility model, the length of the movable plate 405 is equal to the internal width of the fixed plate 402, and the side wall of the fixed plate 402 abuts against the side wall of the limiting plate 408, so that the movable plate 405 will not shake inside the fixed plate 402 when it is lifted.

[0026] As a technical optimization of this utility model, the feeding mechanism 5 includes a funnel 501, and the funnel 501 is fixedly connected to the moving plate 405. Two feeding pipes 502 are connected to each other on the funnel 501. The stirring mechanism 6 includes a second motor 601. The second motor 601 is installed at the top center of the funnel 501. The output end of the second motor 601 is connected to a rotating shaft 602. Two sets of stirring blades 603 are installed on the rotating shaft 602. The sleeve 604 is welded to the rotating shaft 602. Different raw materials are added into the funnel 501 through the two feeding pipes 502. The second motor 601 is started to stir and mix the two sets of raw materials with the stirring blades 603. At the same time, it can also drive the second spiral blade 407 to rotate.

[0027] As a technical optimization of this utility model, the pushing mechanism 3 includes a motor 301, which is installed at the end of the outer shell 1. The inner part of the outer shell 1 is provided with a spiral blade 302, which is connected to the output end of the motor 301. The heating mechanism 2 includes a heating element 201, and multiple sets of heating elements 201 are provided on the outer shell 1. Two opposite semi-circular heating elements 201 are fixedly connected by screws. The heating mechanism 2 also includes a support base 202, which is fixedly connected to the outer shell 1. When the stirred material is discharged from the inner part of the connecting pipe 403 or the connecting pipe 404, it falls into the inner part of the outer shell 1. The motor 301 is started to push the spiral blade 302 to the heating area. After the heating element 201 is working, the outer shell 1 can heat and melt the material. As the spiral blade 302 rotates, the melted material is squeezed out from the end of the outer shell 1.

[0028] In use, the entire structure is installed via the support base 202. When mixing and feeding irregular and large raw materials that require secondary mixing, the connecting pipe 403 is selected for feeding. At this time, the moving plate 405 is located on top of the connecting pipe 403, and the connecting shell 412 is connected to the connecting pipe 403. The plug 413 at the top of the spiral blade 407 is inserted into the sleeve 604 at the bottom of the rotating shaft 602. When the rotating shaft 602 rotates, it will drive the spiral blade 407 to rotate. Raw materials are added into the funnel 501 through the two feed pipes 502, and the motor 6 is started. 01. The rotating shaft 602 drives the stirring blade 603 to rotate, stirring the two raw materials. The stirred raw materials fall into the interior of the connecting pipe 403. As the rotating shaft 602 drives the stirring blade 603 to rotate, it also drives the spiral blade 407 to rotate, stirring and conveying the raw materials again. With the rotation of the spiral blade 407, the secondary stirred raw materials are conveyed into the interior of the outer shell 1. The heating element 201 heats the raw materials, and the motor 301 starts, causing the spiral blade 302 to extrude the molten raw materials. When conveying some small raw materials that do not require secondary mixing, the two raw materials are also connected... Material is added into the funnel 501 through two feed pipes 502, but at this time, connecting pipe 404 is selected for conveying. When connecting the connecting shell 412 to connecting pipe 404, the screws on the moving plate 405 are removed. At this time, the moving plate 405 can move horizontally and vertically. Hold the handles on both sides of the moving plate 405 and pull the moving plate 405 towards the top of the fixed plate 402. The limiting post 410 also rises accordingly, and the four springs 411 retract. As the moving plate 405 rises, the sleeve 604 at the bottom of the rotating shaft 602 gradually separates from the plug 413 on the spiral blade 407. Move the entire moving plate 405 towards the top of the connecting pipe 404. When the moving plate 405 comes into contact with the limiting plate 408 on one side of the connecting pipe 404, the moving plate 405 can be released. The moving plate 405 then comes into contact with the inside of the fixing plate 402. At this point, the screw can be threaded into the fixing hole 406 to fix the moving plate 405. There is no spiral blade 407 inside the connecting pipe 404. The rotating shaft 602 will only drive the stirring blade 603 to mix the material once. After mixing, the material will fall directly into the inside of the connecting pipe 404 without affecting the feeding speed or causing blockage, thus avoiding the failure of the raw materials to be connected.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A raw material mixing and conveying device for an extruder, comprising a housing (1) and a heating mechanism (2) mounted on the housing (1), characterized in that: The shell (1) is provided with a transposition mechanism (4), the transposition mechanism (4) comprises four supports (401), four supports (401) are fixed on the shell (1), four supports (401) are fixed with fixed plates (402), the fixed plates (402) are slidably connected with moving plates (405), two slide grooves (409) are oppositely formed on the fixed plates (402), two limiting columns (410) are slidably connected in the slide grooves (409), the limiting columns (410) are welded with the moving plates (405), springs (411) are clamped between the limiting columns (410) and the fixed plates (402), two groups of rectangular structure fixing holes (406) are arranged on the fixed plates (402), the moving plates (405) and the fixed plates (402) are fixedly connected through the fixing holes (406) and bolts, the bottom of the moving plates (405) is fixed with a connecting shell (412), the connecting shell (412) is in contact with a connecting pipe one (403) and a connecting pipe two (404) communicated with the shell (1), the connecting pipe one (403) is internally fixed with a mounting plate (414), the mounting plate (414) is rotatably connected with a spiral blade two (407), the spiral blade two (407) is fixed with a plug (413) of hexagonal prism structure.

2. The raw material mixing and conveying device for an extruder according to claim 1, characterized in that: The side of the fixed plate (402) is in the shape of a n, and the distance between the inner top of the fixed plate (402) and the surface of the moving plate (405) is greater than the length of the plug (413) inside the sleeve (604).

3. The raw material mixing and conveying device for an extruder according to claim 1, characterized in that: The transposition mechanism (4) further comprises limiting plates (408), and the inner walls of the fixed plates (402) are oppositely welded with two groups of limiting plates (408).

4. The raw material mixing and conveying device for an extruder according to claim 3, characterized in that: The length of the moving plate (405) is equal to the internal width of the fixed plate (402), and the side wall of the fixed plate (402) is in contact with the side wall of the limiting plate (408).

5. The raw material mixing and conveying device for an extruder according to claim 4, wherein: The moving plate (405) is fixed with a feeding mechanism (5), the feeding mechanism (5) comprises a hopper (501), the moving plate (405) is fixedly connected with the hopper (501), and the hopper (501) is oppositely communicated with two feeding pipes (502).

6. The raw material mixing and conveying device for an extruder according to claim 5, wherein: The feeding mechanism (5) is provided with a stirring mechanism (6), the stirring mechanism (6) comprises a sleeve (604), the sleeve (604) is inserted into the plug (413), a second motor (601) is installed at the top center of the hopper (501), an output end of the second motor (601) is connected with a rotating shaft (602), two groups of stirring blades (603) are installed on the rotating shaft (602), and the sleeve (604) is welded with the rotating shaft (602).

7. The raw material mixing and conveying device for an extruder according to claim 1, characterized in that: The shell (1) is internally provided with a pushing mechanism (3), the pushing mechanism (3) comprises a first motor (301), the first motor (301) is installed at the end of the shell (1), and a spiral blade one (302) is arranged in the shell (1) and connected with the output end of the first motor (301).

8. The raw material mixing and conveying device for an extruder according to claim 1, characterized in that: The heating mechanism (2) comprises heating fins (201), and a plurality of groups of heating fins (201) are arranged on the shell (1), and two opposite heating fins (201) in a semicircular structure are fixedly connected through screws.

9. The raw material mixing and conveying device for an extruder according to claim 8, wherein: The heating mechanism (2) further comprises support seats (202), and two support seats (202) are fixedly connected opposite to each other on the shell (1).

Images