Conical double-screw extruder with waste recovery function

Abstract

The utility model provides a conical double-screw extruder with a waste recovery function, which comprises a machine body, a recovery component is arranged on the inner side of the machine body, and a disassembly component is arranged on the inner side of the machine body and positioned on the right side of the recovery component; the recycling assembly comprises an extrusion cavity formed in the left side of the machine body. According to the conical double-screw extruder with the waste recovery function, after a disassembly plate is disassembled, a handle is held to drive a connecting plate to move rightwards on the peripheral side face of a limiting sliding rod, and then a scraping ring located on the inner wall of an extrusion cavity is driven to move rightwards, so that material residues located on the inner wall of the extrusion cavity are scraped off by the scraping ring; and the scraped materials can move along with the movement of the scraping ring, finally fall into a collecting box below through a discharging pipe at the bottom, and are further treated or recycled, so that the materials are utilized to a greater extent.

Description

Technical Field

[0001] The utility model relates to the field of extruders, in particular to a conical twin-screw extruder with a waste material recycling function. Background Art

[0002] Conical twin-screw extruder, also known as conical twin extruder, is mainly used for plasticizing thermoplastics such as PVC or wood plastic products. Its structure includes conical twin screws, barrel, transmission system, heating and cooling system, electrical control system and other parts. Through the rotation of the screw and the heating of the barrel, the plastic raw materials are plasticized and extruded into products of various shapes.

[0003] Conical twin-screw extruders are mainly used to plasticize plastic raw materials and extrude them into products of various shapes. By equipping different molds and auxiliary production lines, raw materials such as PVC powder can be directly made into plastic products of different cross-sections such as pipes, plates, and profiles. In addition, this equipment can also be used for the modification of various plastics and the granulation process of powder.

[0004] The conical twin-screw extruder is a plastic processing equipment with powerful functions and stable performance, and has broad application prospects in the plastic processing industry. Application number: CN201921127193.1, discloses a conical twin-screw extruder, the width of the outlet of the discharge head can be adjusted, so that products of different widths can be produced, effectively reducing the number of times the discharge head is replaced, improving production efficiency, and facilitating disassembly and maintenance. However, when the device is in use, it is not convenient to recycle the plastic residue on the inner wall of the screw extruder. After the production is completed, there is often material remaining on the inner wall of the extruder. The device cannot scrape the material on the inner wall of the extruder, resulting in residual material sticking to the inner wall of the extrusion chamber, causing waste of raw materials and difficulty in cleaning after cooling.

[0005] Therefore, it is necessary to provide a conical twin-screw extruder with a waste recovery function to solve the above-mentioned technical problems. Utility Model Content

[0006] The utility model provides a conical twin-screw extruder with a waste recycling function, which solves the problem in the related art that some existing conical twin-screw extruders are not convenient for processing and recycling waste residues on the inner wall of the extrusion cavity when in use, resulting in waste of raw materials and difficulty in cleaning.

[0007] In order to solve the above technical problems, the utility model provides a conical twin-screw extruder with waste recycling function, comprising: a machine body, a recycling component is arranged inside the machine body, and a disassembly component is arranged inside the machine body and on the right side of the recycling component;

[0008] The recycling assembly includes an extrusion chamber arranged on the left side of the body, a scraper ring is arranged on the inner side of the extrusion chamber so as to slide left and right along the length direction thereof, a connecting plate is arranged on the top of the scraper ring, the top of the connecting plate passes through the inner side of the extrusion chamber and extends to the top thereof, and a handle is arranged on the top of the connecting plate;

[0009] The disassembly assembly comprises a mounting groove arranged at the top of the extrusion cavity and located on the right side of the connecting plate, two mounting holes are provided on the inner side of the mounting groove, and a disassembly plate is clamped on the inner side of the mounting groove.

[0010] Preferably, the recycling component also includes a fixed frame arranged on the top of the extrusion chamber, a limiting slide bar is laterally arranged on the inner side of the fixed frame, the peripheral side surface of the limiting slide bar is slidably connected to the inner side of the connecting plate, and a discharge pipe is connected to the right side of the bottom of the extrusion chamber, and a collection box is arranged below the discharge pipe.

[0011] Preferably, a slot is provided on the inner side of the disassembly plate, two fixing plates are fixedly provided on the inner side of the slot, and springs are provided on the right sides of the two fixing plates.

[0012] Preferably, a mounting block is fixedly provided on the right side of the two springs, the right sides of the two mounting blocks pass through the inner side of the slot and extend to the right side of the disassembly plate, and the right sides of the two mounting blocks are respectively located inside the two mounting holes.

[0013] Preferably, a connecting rope is provided on the left side of the two mounting blocks, the peripheral side surface of the connecting rope is slidably connected to the inner sides of the two fixing plates, and a pulley for preventing the connecting rope from being worn is provided on the inner side of the slot.

[0014] Preferably, a rotating rod is vertically rotatably provided on the inner side of the slot, the top end of the rotating rod passes through the inner side of the slot and extends to the top of the disassembly plate, and the left side of the connecting rope is fixed to the bottom of the peripheral side of the rotating rod.

[0015] Compared with the related art, the conical twin-screw extruder with waste recycling function provided by the utility model has the following beneficial effects:

[0016] The utility model provides a conical twin-screw extruder with a waste recycling function. After the disassembly plate is removed, the connection plate is driven to move rightward on the peripheral side surface of the limiting slide bar by holding the handle, thereby driving a scraper ring located on the inner wall of the extrusion chamber to move rightward, so that the scraper ring scrapes off the material residue on the inner wall of the extrusion chamber, and the scraped material moves with the movement of the scraper ring, and finally falls into the interior of the collection box below through the discharge pipe at the bottom, and then is processed or recycled, thereby realizing a greater degree of material utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A structural schematic diagram of a preferred embodiment of a conical twin-screw extruder with a waste recycling function provided by the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure of the front view of the body shown;

[0019] Figure 3 for Figure 1 A schematic structural diagram of a partial cross-sectional view of the extrusion cavity shown;

[0020] Figure 4 for Figure 3 A schematic diagram of the structure of the top portion of the right side of the extrusion cavity is shown;

[0021] Figure 5 for Figure 3 The schematic diagram of the partial structure of the disassembly plate shown;

[0022] Figure 6 for Figure 5 A schematic structural diagram of a partial cross-sectional view of the disassembly plate shown;

[0023] Figure 7 for Figure 6 An enlarged schematic diagram of the structure of area A is shown.

[0024] Numbers in the figure: 1. Machine body; 2. Recovery component; 21. Extrusion chamber; 22. Scraper ring; 23. Connecting plate; 24. Handle; 25. Fixed frame; 26. Limiting slide bar; 27. Discharge pipe; 28. Collection box; 3. Disassembly component; 31. Mounting groove; 32. Mounting hole; 33. Disassembly plate; 34. Slot; 35. Fixed plate; 36. Spring; 37. Mounting block; 38. Connecting rope; 39. Pulley; 4. Rotating rod. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0026] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 ,in Figure 1 A structural schematic diagram of a preferred embodiment of a conical twin-screw extruder with a waste recycling function provided by the utility model; Figure 2 for Figure 1 A schematic diagram of the structure of the front view of the body shown; Figure 3 for Figure 1 A schematic structural diagram of a partial cross-sectional view of the extrusion cavity shown; Figure 4 for Figure 3 A schematic diagram of the structure of the top portion of the right side of the extrusion cavity is shown; Figure 5 for Figure 3 The schematic diagram of the partial structure of the disassembly plate shown; Figure 6 for Figure 5 A schematic structural diagram of a partial cross-sectional view of the disassembly plate shown; Figure 7 for Figure 6 The enlarged schematic diagram of the structure of area A is shown, a conical twin-screw extruder with waste recycling function, comprising: a machine body 1, a recycling component 2 is arranged inside the machine body 1, and a disassembly component 3 is arranged inside the machine body 1 and on the right side of the recycling component 2;

[0027] The recycling assembly 2 includes an extrusion chamber 21 disposed on the left side of the machine body 1, a scraper ring 22 is disposed inside the extrusion chamber 21 and can slide left and right along its length direction, a connecting plate 23 is disposed on the top of the scraper ring 22, the top of the connecting plate 23 passes through the inside of the extrusion chamber 21 and extends to the top thereof, and a handle 24 is disposed on the top of the connecting plate 23;

[0028] After the disassembly plate 33 is removed, the connecting plate 23 is driven to move rightward on the peripheral side of the limiting slide bar 26 by holding the handle 24, thereby driving the scraper ring 22 located on the inner wall of the extrusion chamber 21 to move rightward, so that the scraper ring 22 scrapes off the material residue on the inner wall of the extrusion chamber 21.

[0029] The disassembly assembly 3 includes a mounting groove 31 disposed at the top of the extrusion cavity 21 and located on the right side of the connecting plate 23 . Two mounting holes 32 are formed inside the mounting groove 31 . A disassembly plate 33 is engaged inside the mounting groove 31 .

[0030] By setting the disassembly component 3, the normal use of the screw extruder is guaranteed after installation, and the disassembly plate 33 is removed when cleaning is required to facilitate the use of the recovery component 2.

[0031] The recovery component 2 also includes a fixed frame 25 arranged on the top of the extrusion chamber 21, and a limiting slide bar 26 is laterally arranged on the inner side of the fixed frame 25. The surrounding side surface of the limiting slide bar 26 is slidably connected to the inner side of the connecting plate 23. The right side of the bottom of the extrusion chamber 21 is connected to a discharge pipe 27, and a collection box 28 is arranged below the discharge pipe 27.

[0032] The scraped material will move with the movement of the scraper ring 22, and finally fall into the collecting box 28 below through the discharge pipe 27 at the bottom, and then be processed or recycled, thereby realizing the maximum utilization of the material.

[0033] A slot 34 is formed on the inner side of the disassembly plate 33 , and two fixing plates 35 are fixedly disposed on the inner side of the slot 34 . A spring 36 is disposed on the right side of the two fixing plates 35 .

[0034] The right sides of the two springs 36 are fixed with mounting blocks 37 . The right sides of the two mounting blocks 37 pass through the inner side of the slot 34 and extend to the right side of the disassembly plate 33 . The right sides of the two mounting blocks 37 are respectively located inside the two mounting holes 32 .

[0035] By setting the fixing plate 35 and the spring 36 , when no external force is applied, the mounting block 37 will be pushed out by the spring 36 , and then when the disassembly plate 33 is located inside the mounting groove 31 , the mounting block 37 will be clamped into the mounting hole 32 at the top.

[0036] A connecting rope 38 is provided on the left side of the two mounting blocks 37 , and the peripheral side surface of the connecting rope 38 is slidably connected to the inner side of the two fixing plates 35 . A pulley 39 for preventing the connecting rope 38 from being worn is provided on the inner side of the slot 34 .

[0037] A rotating rod 4 is vertically rotatably arranged inside the slot 34 , the top end of the rotating rod 4 passes through the inside of the slot 34 and extends to the top of the disassembly plate 33 , and the left side of the connecting rope 38 is fixed to the bottom of the side surface of the rotating rod 4 .

[0038] When the inside of the extrusion chamber 21 needs to be cleaned and recovered, the disassembly plate 33 needs to be removed first, and the connecting rope 38 is shortened by the rotation of the rotating rod 4, and then the connecting rope 38 pulls the two mounting blocks 37 out of the engagement with the mounting holes 32. At this time, the disassembly plate 33 is pulled out to move the scraper ring 22 to the right.

[0039] The working principle of a conical twin-screw extruder with waste recycling function provided by the utility model is as follows:

[0040] Step 1: After the machine stops running, there is a certain amount of residual material on the inner wall of the extruder. The rotation of the rotating rod 4 drives the connecting rope 38 to shorten, and then the connecting rope 38 pulls the two mounting blocks 37 out of the engagement with the mounting holes 32;

[0041] Step 2: After removing the disassembly plate 33, the connection plate 23 is driven to move rightward on the peripheral side of the limiting slide bar 26 by holding the handle 24, thereby driving the scraper ring 22 located on the inner wall of the extrusion chamber 21 to move rightward, so that the scraper ring 22 scrapes off the material residue on the inner wall of the extrusion chamber 21, and the scraped material moves with the movement of the scraper ring 22, and finally falls into the collecting box 28 below through the discharge pipe 27 at the bottom, and then is processed or recycled, thereby realizing the maximum utilization of the material;

[0042] Step 3: When installing the disassembly plate 33, extend the disassembly plate 33 into the installation groove 31. Through the setting of the fixing plate 35 and the spring 36, when no external force is applied, the installation block 37 will be pushed out by the spring 36. Then, when the disassembly plate 33 is located in the installation groove 31, the installation block 37 will be clamped in the installation hole 32 at the top.

[0043] Compared with the related art, the conical twin-screw extruder with waste recycling function provided by the utility model has the following beneficial effects:

[0044] After the disassembly plate 33 is removed, the connecting plate 23 is driven to move to the right on the peripheral side of the limiting slide bar 26 by holding the handle 24, thereby driving the scraper ring 22 located on the inner wall of the extrusion chamber 21 to move to the right, so that the scraper ring 22 scrapes off the material residue on the inner wall of the extrusion chamber 21, and the scraped material moves with the movement of the scraper ring 22, and finally falls into the collection box 28 below through the discharge pipe 27 at the bottom, and then is processed or recycled, thereby realizing the maximum utilization of the material.

[0045] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A conical twin-screw extruder with waste recovery function, characterized in that: include: A machine body (1), a recovery component (2) being arranged on the inner side of the machine body (1), and a disassembly component (3) being arranged on the inner side of the machine body (1) and on the right side of the recovery component (2); The recycling assembly (2) comprises an extrusion chamber (21) arranged on the left side of the machine body (1), a scraper ring (22) is arranged on the inner side of the extrusion chamber (21) so as to be slidable left and right along the length direction thereof, a connecting plate (23) is arranged on the top of the scraper ring (22), the top of the connecting plate (23) passes through the inner side of the extrusion chamber (21) and extends to the top thereof, and a handle (24) is arranged on the top of the connecting plate (23); The disassembly assembly (3) comprises a mounting groove (31) arranged at the top of the extrusion cavity (21) and located on the right side of the connecting plate (23), two mounting holes (32) are provided on the inner side of the mounting groove (31), and a disassembly plate (33) is engaged with the inner side of the mounting groove (31).

2. A conical twin-screw extruder with waste recycling function according to claim 1, characterized in that: The recovery component (2) also includes a fixed frame (25) arranged on the top of the extrusion chamber (21), and a limit slide bar (26) is laterally arranged on the inner side of the fixed frame (25), and the peripheral side surface of the limit slide bar (26) is slidably connected to the inner side of the connecting plate (23). The right side of the bottom of the extrusion chamber (21) is connected to a discharge pipe (27), and a collection box (28) is arranged below the discharge pipe (27).

3. A conical twin-screw extruder with waste recovery function according to claim 1, characterized in that: A slot (34) is provided on the inner side of the disassembly plate (33), two fixing plates (35) are fixedly provided on the inner side of the slot (34), and springs (36) are provided on the right sides of the two fixing plates (35).

4. A conical twin-screw extruder with waste recovery function according to claim 3, characterized in that: The right sides of the two springs (36) are fixedly provided with mounting blocks (37), the right sides of the two mounting blocks (37) pass through the inner side of the slot (34) and extend to the right side of the disassembly plate (33), and the right sides of the two mounting blocks (37) are respectively located inside the two mounting holes (32).

5. A conical twin-screw extruder with waste recovery function according to claim 4, characterized in that: A connecting rope (38) is arranged on the left side of the two mounting blocks (37), the peripheral side surface of the connecting rope (38) is slidably connected to the inner side of the two fixing plates (35), and a pulley (39) for preventing the connecting rope (38) from being worn is arranged on the inner side of the slot (34).

6. A conical twin-screw extruder with waste recovery function according to claim 5, characterized in that: A rotating rod (4) is vertically rotatably arranged on the inner side of the slot (34), the top end of the rotating rod (4) passes through the inner side of the slot (34) and extends to the top of the disassembly plate (33), and the left side of the connecting rope (38) is fixed to the bottom of the peripheral side of the rotating rod (4).

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