Plastic particle melting device
By installing chip blowing and chip removal and chip removal mechanisms at the extrusion mold of the plastic particle melting device, the problem of plastic chip adhering to the extrusion surface is solved, effectively removing and collecting debris, and improving the performance of extrusion .
Patent Information
- Application Number
- CN202421002324.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-10
AI Technical Summary
During the process of melting plastic particles, when the melt is extruded through the mold, a small amount of plastic debris will not be completely condensed and adhere to the surface of the extrudate, affecting the performance of the extrudate.
A plastic particle melting device is designed, including installing a chip blowing mechanism and a chip removal and chip removal mechanism at the extrusion mold. The chip blowing mechanism blows away debris on the surface of the extrudate through the fan and collects them uniformly through the chip discharge port; the chip removal and chip stop mechanism prevents the collected debris from being blown out in the wind.
Effectively remove and collect debris from melted extruded plastic extrudates, improving the performance of the extrudates and preventing debris from rising in the wind.
Smart Images
Figure CN222495320U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic particle processing equipment, in particular to a plastic particle melting device. Background Art
[0002] When plastic particles are melted, they are processed by matching extrusion structures, etc. When the melt is extruded through the die, a small amount of plastic debris will adhere to the surface of the extrudate due to incomplete coagulation. The presence of the plastic debris will affect the performance of the extrudate. Therefore, the utility model proposes a plastic particle melting device that can instantly remove the plastic debris. Utility Model Content
[0003] The utility model aims to provide a plastic particle melting device in view of the problems existing in the background technology.
[0004] The technical solution of the utility model is: a plastic particle melting device, including a melter and a melting extrusion roller installed on the melter, an extrusion die is arranged at the discharge end of the melting extrusion roller, and also includes: a chip blowing mechanism installed at the extrusion die, the chip blowing mechanism includes a chip blowing cover fixedly sleeved with the extrusion die, an inner annular surface of the chip blowing cover is provided with an air duct; a chip removing and blocking mechanism installed at the port of the chip blowing cover.
[0005] Optionally, the chip blowing mechanism further comprises a fan box fixed to the outer wall of the chip blowing cover, and an air outlet of the fan box is connected to the inside of the air duct.
[0006] Optionally, the inner annular surface of the air duct is provided with a plurality of air injection holes.
[0007] Optionally, one end of the chip blowing cover is provided with a threaded connection portion which can be screwed together with the extrusion die thread.
[0008] Optionally, the chip blowing cover is provided with a chip discharge port for discharging the debris.
[0009] Optionally, the chip blowing mechanism comprises a matching adjustment ring sleeved on the outside of the chip blowing cover, and the matching adjustment ring is provided with a chip removal nozzle which can be aligned with the chip removal opening.
[0010] Optionally, the mating adjustment ring is provided with an anti-blocking groove for relative movement of the air supply chassis.
[0011] Optionally, an annular sliding block is provided on the inner ring surface of the mating adjustment ring, and an annular sliding groove matching the anti-blocking groove is provided on the outer ring surface of the chip blowing cover.
[0012] Optionally, the chip removing and blocking mechanism includes a fixed collar fixedly connected to the port of the chip blowing cover, a pair of bearings fixed to the outer wall of the fixed collar, and a threaded adjustment shaft and a guide light rod connected to the two bearings.
[0013] Optionally, the chip removing and blocking mechanism further comprises a pair of blocking curtains, which are threadedly engaged with the threaded adjustment shaft and movably sleeved with the guide light rod, and blocking curtain strips are provided on opposite surfaces of the two blocking curtains.
[0014] Compared with the prior art, the utility model has the following beneficial technical effects:
[0015] The present application installs a chip blowing mechanism at the extrusion die to remove and uniformly collect the chips on the molten extruded plastic extrudate;
[0016] Furthermore, by providing a chip removing and blocking mechanism at the port of the chip blowing mechanism, the collected debris can be prevented from being blown out by wind force. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of a plastic particle melting device;
[0018] Figure 2 for Figure 1 Schematic diagram of the separate structure of the chip removal and blocking mechanism, the chip blowing mechanism, and the melting and extrusion roller;
[0019] Figure 3 for Figure 2 A cross-sectional view of the chip blowing mechanism;
[0020] Figure 4 for Figure 3 Structural schematic diagram of the middle adjustment ring;
[0021] Figure 5 It is a structural schematic diagram of the chip removal and chip blocking mechanism.
[0022] Reference numerals: 1. Melting machine;
[0023] 2. Melting extrusion roller; 21. Extrusion die;
[0024] 3. Chip blowing mechanism; 31. Chip blowing cover; 311. Air duct; 312. Threaded connection; 313. Chip removal port; 32. Fan box; 33. Matching adjustment ring; 331. Anti-blocking groove; 332. Chip removal nozzle; 333. Annular slider;
[0025] 4. Chip removing and blocking mechanism; 41. Fixed collar; 42. Bearing; 43. Threaded adjustment shaft; 44. Guide light rod; 45. Support arm; 46. Curtain blocking; 461. Curtain blocking strip. DETAILED DESCRIPTION
[0026] 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.
[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be 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.
[0029] like Figure 1-5 As shown, the utility model proposes a plastic particle melting device, comprising a melter 1 and a melt extrusion roller 2 installed on the melter 1, and an extrusion die 21 is arranged at the discharge end of the melt extrusion roller 2. The plastic to be melted is added into the melt extrusion roller 2 through the hopper on the melt extrusion roller 2, and is extruded by the extrusion die 21 after being melted and cooled. Since the process is a prior art, it will not be described here.
[0030] In this embodiment, the plastic particle melting device comprises a chip blowing mechanism 3 installed at the extrusion die 21 and a chip removing and blocking mechanism 4 installed at the port of the chip blowing cover 31 .
[0031] Among them, reference Figure 3-4The chip blowing mechanism 3 includes a chip blowing cover 31. One end of the chip blowing cover 31 is provided with a threaded connection portion 312 that can be screwed with the extrusion die 21. The chip blowing mechanism 3 is detachably fixed to the extrusion die 21 through the screwing. An air duct 311 is coaxially provided on the inner ring surface of the chip blowing cover 31. The air duct 311 is hollow inside and has a plurality of air jet holes on the inner ring surface. A fan box 32 is installed on its outer wall. The air outlet of the fan box 32 is connected to the inside of the air duct 311, so that air is injected into the chip blowing cover 31 to blow away the debris attached to the surface of the plastic extrudate. In other embodiments, the fan box 32 can also be designed as a water spray box, and the air jet holes on the inner ring surface of the chip blowing cover 31 are replaced with water spray holes, so that the debris attached to the surface of the plastic extrudate can be removed by water spraying. The chip blowing cover 31 is provided with a chip discharge port 313 for discharging the debris, and a matching adjustment ring 33 is rotatably sleeved on the outside of the chip blowing cover 31, and the matching adjustment ring 33 is provided with a chip discharge nozzle 332 that can be aligned with the chip discharge port 313. Further, an annular slider 333 is provided on the inner ring surface of the matching adjustment ring 33, and an annular chute matching the anti-blocking groove 331 is provided on the outer ring surface of the chip blowing cover 31. The coaxial rotation of the matching adjustment ring 33 on the chip blowing cover 31 is achieved by the mutual sliding of the annular chute and the annular slider 333. The purpose of this design is that when the chip blowing cover 31 is installed on the extrusion die 21 by screwing, it is impossible to ensure that the chip discharge port 313 provided on the chip blowing cover 31 always faces downward, so the matching adjustment ring 33 is rotated to ensure that the chip discharge nozzle 332 connected with the chip discharge port 313 always faces downward, so as to facilitate the discharge of plastic debris. Based on this, the matching adjustment ring 33 is also provided with an anti-blocking groove 331 that is relatively movable with the air supply box 32.
[0032] For chip removal and chip blocking mechanism 4, refer to Figure 5 The chip removal and chip blocking mechanism 4 includes a fixed collar 41, which is fixedly connected to the port of the chip blowing cover 31, and the fixing method can be through a pin shaft or a threaded connection. A pair of bearings 42 are fixedly connected to the outer wall of the fixed collar 41, and the two bearings 42 are respectively rotatably connected to the threaded adjustment shaft 43 and the guide light rod 44. A pair of T-shaped support arms 45 are also fixedly connected to the two sides of the outer wall of the fixed collar 41 by bolts, and the top of the vertical arm of the support arm 45 is rotatably connected to the threaded adjustment shaft 43, and the bottom of the vertical arm of the support arm 45 is fixedly connected to the guide light rod 44. The chip removal and chip blocking mechanism 4 also includes a pair of blocking curtains 46, which are threadedly screwed with the threaded adjustment shaft 43 and movably connected with the guide light rod 44, so when the threaded adjustment shaft 43 is rotated, the two blocking curtains 46 can be driven to move in the opposite direction. In addition, the opposite surfaces of the two blocking curtains 46 are provided with soft and deformable blocking curtain strips 461. When the two curtains 46 are close to each other, the curtain strips 461 can stick to the surface of the plastic extrudate, allowing the extrudate to pass through while further removing the debris remaining thereon, and can also block the debris blown by the wind in the chip blower 31. When the two curtains 46 are away from each other, it is convenient to allow the extrudate to be smoothly led out of the chip blower 31 during the initial extrusion.
[0033] The working principle of this embodiment is as follows: the chip blowing mechanism 3 is installed at the extrusion die 21, and the chip removing and blocking mechanism 4 is installed at the port of the chip blowing mechanism 3. The plastic to be melted is added through the hopper on the melting extrusion roller 2, and the plastic melt is extruded through the extrusion die 21. Due to incomplete cooling during extrusion, debris will be attached to the extrudate. The fan box 32 supplies air into the air duct 311, and then blows toward the extrudate through the air port on the inner annular surface of the air duct 311, blows away the debris on its surface, and then discharges it through the chip removal port 313 and the chip removal nozzle 332. In this process, the plastic extrudate will extend outward through the port of the chip blowing cover 31, passing through the curtain bar 461 during the process. Due to the soft deformation ability of the curtain bar 461, it can be attached to the surface of the extrudate, allowing the extrudate to pass through while further removing the debris remaining on it, and can also block the debris raised by the wind in the chip blowing cover 31.
[0034] In summary, by installing a chip blowing mechanism 3 at the extrusion die 21, the debris on the molten extruded plastic extrudate can be removed and collected uniformly; by providing a chip removing and blocking mechanism 4 at the port of the chip blowing mechanism 3, the collected debris can be prevented from being blown out by the wind.
[0035] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.
Claims
1. A plastic particle melting device, comprising a melter (1) and a melt extrusion roller (2) mounted on the melter (1), wherein an extrusion die (21) is arranged at the discharge end of the melt extrusion roller (2), characterized in that: Also includes: A chip blowing mechanism (3) installed at the extrusion die (21), the chip blowing mechanism (3) comprising a chip blowing cover (31) fixedly sleeved with the extrusion die (21), the inner annular surface of the chip blowing cover (31) being provided with an air duct (311); A chip removing and blocking mechanism (4) is installed at the port of the chip blowing cover (31).
2. A plastic particle melting device according to claim 1, characterized in that: The chip blowing mechanism (3) further comprises a fan box (32) fixed to the outer wall of the chip blowing cover (31), and an air outlet of the fan box (32) is communicated with the interior of the air duct (311).
3. A plastic particle melting device according to claim 2, characterized in that: The inner annular surface of the air duct (311) is provided with a plurality of air injection holes.
4. A plastic particle melting device according to claim 3, characterized in that: One end of the chip blowing cover (31) is provided with a threaded connection portion (312) that can be threadedly engaged with the extrusion die (21).
5. A plastic particle melting device according to claim 4, characterized in that: The chip blowing cover (31) is provided with a chip discharge opening (313) for discharging the scraps.
6. A plastic particle melting device according to claim 5, characterized in that: The chip blowing mechanism (3) comprises a matching adjustment ring (33) sleeved on the outside of the chip blowing cover (31), and the matching adjustment ring (33) is provided with a chip removal nozzle (332) that can be aligned with the chip removal opening (313).
7. A plastic particle melting device according to claim 6, characterized in that: The mating adjustment ring (33) is provided with an anti-blocking groove (331) that is movable relative to the air supply box (32).
8. A plastic particle melting device according to claim 7, characterized in that: An annular sliding block (333) is provided on the inner annular surface of the mating adjustment ring (33), and an annular sliding groove matching the anti-blocking groove (331) is provided on the outer annular surface of the chip blowing cover (31).
9. A plastic particle melting device according to claim 8, characterized in that: The chip removing and blocking mechanism (4) comprises a fixed collar (41) fixedly sleeved with a port of a chip blowing cover (31), a pair of bearings (42) fixed to an outer wall of the fixed collar (41), and a threaded adjustment shaft (43) and a guide light rod (44) connected to the two bearings (42).
10. A plastic particle melting device according to claim 9, characterized in that: The chip removing and blocking mechanism (4) further comprises a pair of blocking curtains (46), wherein the blocking curtains (46) are threadedly engaged with the threaded adjustment shaft (43) and movably sleeved with the guide light rod (44), and the opposing surfaces of the two blocking curtains (46) are provided with blocking curtain strips (461).