CN118003578A - Glue passing assembly capable of refining melting stock, plasticizing device and plasticizing method - Google Patents
Glue passing assembly capable of refining melting stock, plasticizing device and plasticizing method Download PDFInfo
- Publication number
- CN118003578A CN118003578A CN202410347614.0A CN202410347614A CN118003578A CN 118003578 A CN118003578 A CN 118003578A CN 202410347614 A CN202410347614 A CN 202410347614A CN 118003578 A CN118003578 A CN 118003578A
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- Prior art keywords
- glue
- glue passing
- ring
- head
- molten material
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- 239000003292 glue Substances 0.000 title claims abstract description 225
- 238000000034 method Methods 0.000 title claims description 19
- 238000007670 refining Methods 0.000 title claims description 5
- 238000002844 melting Methods 0.000 title abstract description 14
- 230000008018 melting Effects 0.000 title abstract description 14
- 239000012768 molten material Substances 0.000 claims abstract description 72
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000007787 solid Substances 0.000 claims abstract description 14
- 239000000155 melt Substances 0.000 claims description 22
- 238000003860 storage Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 5
- 239000011343 solid material Substances 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 6
- 238000007493 shaping process Methods 0.000 abstract description 6
- 239000000853 adhesive Substances 0.000 description 12
- 230000001070 adhesive effect Effects 0.000 description 12
- 238000005299 abrasion Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000010309 melting process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/58—Details
- B29C45/581—Devices for influencing the material flow, e.g. "torpedo constructions" or mixing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/74—Heating or cooling of the injection unit
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a glue passing assembly, which comprises a glue passing head and a non-return ring sleeved on the glue passing head; the non-return ring comprises a limiting ring and a glue passing ring which are arranged one by one along the axial direction of the glue passing head, a channel for the molten material to pass through is formed by enclosing between the glue passing ring and the glue passing head, and the glue passing ring can move along the axial direction of the glue passing head, so that a glue inlet for the molten material to enter the channel is formed between the glue passing ring and the limiting ring, and the glue passing ring can move to abut against the limiting ring to seal the glue inlet; a plurality of protruding structures are arranged in the middle of the channel in a spacing mode, and the protruding structures are used for crushing solids in the melting materials. The device can refine the molten material so that the molten material can be fully mixed and melted, and meanwhile, the temperature of the molten material can be reduced, the shaping cooling time can be reduced, and the production efficiency can be improved. The invention also discloses a screw plasticizing device.
Description
The application relates to a Chinese patent application with the application date of 2021, 12-month and 01, the application number of 202111451556.9 and the name of a glue passing component and a screw plasticizing device.
Technical Field
The invention relates to the technical field of injection molding, in particular to a glue passing assembly capable of refining melting materials, a plasticizing device and a plasticizing method.
Background
Plasticizing of plastic is a primary condition for achieving good injection and ensuring the quality of molded products, and at present, the plasticizing principle of plastic is as follows: during pre-molding, the screw rod rotates to continuously push forward the material falling into the screw groove from the material inlet, the heating ring transmits heat to the material in the screw groove through the wall of the material cylinder, the solid material is plasticized and melted under the double functions of external heating and screw rod rotation shearing and through the thermal processes of the functional sections of the screw rod, the molten material pushes away the non-return ring, flows into the material storage chamber of the material cylinder through the channel in the screw rod head, back pressure is generated, the screw rod is pushed to move backwards to finish metering of the molten material, the screw rod plays a role of a plunger during injection, and moves forwards rapidly under the action of the oil cylinder, and the molten material in the material storage chamber is injected into the die through the nozzle.
At present, the screw head mainly comprises a glue passing head, a glue passing ring and a limiting ring (the glue passing ring and the limiting ring form the non-return ring), the glue passing ring and the limiting ring are arranged on the glue passing head, a channel is formed between the glue passing head and the glue passing ring, one end of the channel is communicated with a screw groove through a glue inlet between the glue passing ring and the limiting ring, the other end of the channel is communicated with a storage chamber, and when the screw head is used, the glue passing ring is pushed to move back and forth through the molten material pressure so that the glue passing ring and the limiting ring are clung to each other and form a glue inlet between the glue passing ring and the limiting ring, so that the channel is opened after plasticization and the channel is closed after metering is completed.
However, in practical applications, after the above plasticizing action and the molten material flows through the channel to the storage chamber, the molten material still cannot be sufficiently melted, homogenized and mixed, and the quality of the molded product has defects, so that it is necessary to improve the structure of the existing plasticizing component.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a glue passing assembly which can refine molten materials so that the molten materials can be fully mixed and melted, and meanwhile, the temperature of the molten materials can be reduced, the shaping and cooling time can be reduced, and the production efficiency can be improved; the invention also provides a screw plasticizing device.
The invention adopts the following technical scheme:
The glue passing assembly comprises a glue passing head and a non-return ring sleeved on the glue passing head;
The non-return ring comprises a limiting ring and a glue passing ring which are arranged one by one along the axial direction of the glue passing head, a channel for the molten material to pass through is formed between the glue passing ring and the glue passing head in a surrounding manner, and the glue passing ring can move along the axial direction of the glue passing head, so that a glue inlet for the molten material to enter the channel is formed between the glue passing ring and the limiting ring, and the glue passing ring can move to abut against the limiting ring to seal the glue inlet;
a plurality of protruding structures are arranged in the middle of the channel in a spacing mode, and the protruding structures are used for crushing solids in the melting materials.
Further, the protruding structures are arranged on the glue passing head, and the protruding structures are arranged at intervals with the inner wall of the glue passing ring.
Further, the protruding structure is equipped with the multiturn, and each circle protruding structure is followed the axial of gluing the head sets up in proper order, and each circle protruding structure all includes around the axial interval of gluing the head lays a plurality of protruding structures.
Further, the front end of the glue passing ring can be axially movably clamped on the glue passing head, and the glue passing head, the glue passing ring and the limiting ring can synchronously rotate along with the screw rod.
Further, the head of the glue passing head is provided with a plurality of slots which are axially distributed around the glue passing head, the front end of the glue passing ring extends forwards to form a plurality of inserting parts, and each inserting part is inserted in each slot in a one-to-one correspondence manner so as to clamp the glue passing ring on the glue passing head.
Further, at least one side wall of the slot is provided with a first wedge-shaped surface, at least one side wall of the plug-in portion is provided with a second wedge-shaped surface, and the second wedge-shaped surface is abutted against the first wedge-shaped surface.
Further, a first glue outlet communicated with the channel is formed by enclosing between the plug-in connection part and the bottom wall of the slot.
Further, the head of the glue passing head is further provided with a limiting end face, the front end of the glue passing ring is further provided with a limiting protrusion located between two adjacent inserting parts, and the limiting protrusion can abut against the limiting end face.
Further, a second glue outlet communicated with the channel is formed by enclosing between the limiting end face and the front end of the glue passing ring.
The screw plasticizing device comprises a charging barrel, a screw, a heating piece and the glue passing assembly, wherein one end of the glue passing head, which is far away from the head of the glue passing head, is connected with the front end of the screw.
Compared with the prior art, the invention has the beneficial effects that:
In the use process of the glue passing component, the melt plasticized by the screw enters the channel through the glue inlet, the melt and the raised structures collide vigorously in the flowing process of the channel, and the melt is split and converged for many times by the raised structures, so that the solid in the melt is continuously thinned, and the melt is fully homogenized and melted, so that the melt is fully plasticized.
According to the screw plasticizing device, the glue passing assembly is adopted, so that the melting materials can be thinned, the melting materials can be fully mixed and melted, meanwhile, the temperature of the melting materials can be reduced, the shaping cooling time can be reduced, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic view of a glue assembly according to the present invention in a first state;
FIG. 2 is a schematic view of the adhesive assembly of the present invention in a second state;
FIG. 3 is a schematic view of the adhesive assembly of the present invention in a third state;
FIG. 4 is an exploded view of the adhesive dispensing assembly of the present invention;
Fig. 5 is a cross-sectional view of the adhesive dispensing assembly of the present invention.
In the figure: 10. a glue head is used for glue passing; 11. a bump structure; 12. a slot; 121. a first wedge surface; 13. a limiting end face; 20. a non-return ring; 21. a glue passing ring; 211. a plug-in part; 2111. a second wedge surface; 212. a limit protrusion; 22. a limiting ring; 30. a channel; 40. a glue inlet; 50. a first glue outlet; 60. and a second glue outlet.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.
Referring to fig. 1-5, a glue passing assembly according to a preferred embodiment of the present invention is shown, comprising a glue passing head 10 and a non-return ring 20 sleeved on the glue passing head 10; the check ring 20 includes a glue passing ring 21 and a limiting ring 22 arranged one by one along an axial direction of the glue passing head 10, a channel 30 for the molten material to pass through is formed between the glue passing ring 21 and the glue passing head 10, and the glue passing ring 21 can move along the axial direction of the glue passing head 10, so that a glue inlet 40 for the molten material to enter the channel 30 is formed between the glue passing ring 21 and the limiting ring 22, and the glue passing ring 21 can move to abut against the limiting ring 22 to seal the glue inlet 40; a plurality of protruding structures 11 are arranged in the channel 30 in a spaced manner, and the protruding structures 11 are used for crushing solids in the molten material.
In the use process of the glue passing component, the melt plasticized by the screw enters the channel 30 through the glue inlet 40, the melt and the raised structures 11 collide vigorously in the process of flowing of the channel 30, and the melt is divided and converged by the raised structures 11 for a plurality of times, so that the solid in the melt is continuously refined, and is fully homogenized and melted, so that the melt is fully plasticized, in addition, the melt and the raised structures 11 rub with each other, and rub with the inner wall of the glue passing ring 21 and the outer wall of the glue passing head 10 wrapped by the glue passing ring 21 in the process of rotating the screw to generate heat, thereby being beneficial to further accelerating the melting of the melt, simultaneously, the solid in the melt continuously absorbs the heat from the melt in the melting process, the temperature of the melt can be reduced, the temperature of the melt ejected by the glue passing component is lower, the shaping cooling time can be reduced, and the production efficiency is improved.
Specifically, in this embodiment, the protruding structures 11 are disposed on the glue passing head 10, the protruding structures 11 are disposed at intervals between the protruding structures 11 and the inner wall of the glue passing ring 21, so that the contact area between the molten material and the inner wall of the glue passing ring 21 is larger while the molten material can more smoothly pass through the channel 30, friction between the molten material and the inner wall of the glue passing ring 21 is increased, more heat is generated by the molten material to enable the molten material to be melted more sufficiently, and meanwhile, the protruding structures 11 and the inner wall of the glue passing ring 21 are disposed at intervals, so that the glue passing ring 21 can be pushed by the pressure of the molten material to move more smoothly, so that the glue inlet 40 can be closed and opened in time.
Of course, in other embodiments, the protruding structures 11 may be disposed on the inner wall of the glue passing ring 21, and on this basis, each protruding structure 11 is disposed at a distance from the outer wall of the glue passing head 10.
In this embodiment, the protruding structures 11 are provided with a plurality of circles, each circle of protruding structures 11 is sequentially arranged along the axial direction of the channel 30, and each circle of protruding structures 11 includes a plurality of protruding structures 11 distributed around the axial direction of the channel 30 at intervals, so that the molten material can be split and converged for a plurality of times when passing through the channel 30, and the movement direction and position of the molten material are continuously changed, so that the molten material is melted and plasticized more sufficiently and the temperature of the molten material is further reduced.
Of course, in other embodiments, the plurality of raised structures 11 may be helically disposed about the axis of the channel 30, again serving to divert and merge melt multiple times.
In this embodiment, the front end of the glue passing ring 21 is movably clamped on the glue passing head 10 in an axial direction, and the glue passing head 10, the glue passing ring 21 and the limiting ring 22 can rotate synchronously along with the screw, that is, the glue passing ring 21 moves axially relative to the glue passing head 10 only under the action of the melt pressure, the glue passing ring 21 is fixedly connected with the glue passing head 10 due to the clamping on the glue passing head 10 when the melt pressure is not applied, the glue passing head 10, the glue passing ring 21 and the limiting ring 22 are kept synchronously rotating with the screw in the plasticizing process of the screw, so that no relative movement exists between the contact surfaces of the glue passing ring 21 and the glue passing head 10 and between the contact surfaces of the glue passing ring 21 and the limiting ring 22, the friction can not be generated, thereby the abrasion of the glue passing component is reduced, the unstable injection end point caused by the overlarge moving distance of the glue passing ring 21 in the use process is prevented, or the situation that the glue passing ring 21 is blocked can not be prevented, the moving distance of the glue passing ring 21 in the use process is prevented, the glue inlet 40 can not be quickly closed, and partial molten material in the channel 30 flows back to the spiral groove, so that the molten material metering is inaccurate, the weight and the size of a product are affected, in addition, the concentricity of the glue passing ring 21 and the glue passing head 10 can be better kept after the glue passing ring 21 and the glue passing head 10 are fixed, the situation that the glue passing ring 21 is blocked can not occur, the moving distance of the glue passing ring 21 in the injection process can be better controlled, and the injection precision is increased.
Specifically, in this embodiment, the head of the glue passing head 10 is provided with a plurality of slots 12 axially distributed around the glue passing head, the front end of the glue passing ring 21 extends forward to form a plurality of inserting parts 211, each inserting part 211 is inserted into each slot 12 in a one-to-one correspondence manner, the structure can reliably connect the glue passing ring 21 and the glue passing head 10 by using the inserting parts 211 and the inserting slots 12 in an inserting fit manner, and meanwhile, the glue passing ring 21 can be circumferentially limited, so that the glue passing ring 21 is prevented from rotating relative to the glue passing head 10, and the abrasion of the glue passing assembly is reduced.
Specifically, in the present embodiment, at least one side wall of the slot 12 is provided with a first wedge surface 121, at least one side wall of the insertion portion 211 is provided with a second wedge surface 2111, and the second wedge surface 2111 abuts against the first wedge surface 121, so that the connection between the glue passing ring 21 and the glue passing head 10 is more reliable, and the glue passing ring 21 is prevented from moving axially relative to the glue passing head 10 under the condition of no melt pressure.
Specifically, in this embodiment, the opposite side walls of the slot 12 are provided with first wedge-shaped surfaces 121, and the opposite side walls of the insertion portion 211 are provided with second wedge-shaped surfaces 2111, where each second wedge-shaped surface 2111 abuts against each first wedge-shaped surface 121 in a one-to-one correspondence, so that the connection between the glue passing ring 21 and the glue passing head 10 is more reliable.
Specifically, in this embodiment, the first wedge-shaped surface 121 is an inclined surface inclined from bottom to top toward the center of the slot 12, and the second wedge-shaped surface 2111 and the first wedge-shaped surface 121 are adapted to abut against each other, so that the glue passing ring 21 is reliably mounted on the glue passing head 10.
Specifically, in the present embodiment, the first glue outlet 50 communicating with the channel 30 is formed between the plugging portion 211 and the bottom wall of the slot 12, so that the molten material in the channel 30 can flow to the storage chamber through the first glue outlet.
Specifically, in this embodiment, the head of the glue passing head 10 is further provided with a limiting end surface 13, the front end of the glue passing ring 21 is further provided with a limiting protrusion 212 located between two adjacent inserting portions 211, and the limiting protrusion 212 can abut against the limiting end surface 13. When the adhesive ring 21 moves to form the adhesive inlet 40 with the limiting ring 22, the limiting protrusion 212 is abutted with the limiting end face 13 to axially limit the adhesive ring 21, the adhesive ring 21 is prevented from being separated from the adhesive head 10, when the adhesive ring 21 moves to be abutted with the limiting ring 22 to seal the adhesive inlet 40, the limiting protrusion 212 is separated from the limiting end face 13, and the inserting portion 211 is always matched with the inserting groove 12.
In this embodiment, a second glue outlet 60 communicating with the channel 30 is formed between the limiting end face 13 and the front end of the glue passing ring 21, and the second glue outlet 60 is configured to allow the molten material in the channel 30 to flow to the material storage chamber rapidly, so as to facilitate improvement of production efficiency.
In summary, the adhesive passing assembly of the invention has the following advantages:
1. The arrangement of the convex structures 11 can refine the solids in the molten material, change the movement direction and the position of the molten material, achieve the purposes of strengthening the melting plasticizing mixing capability and reducing the temperature of the molten material, realize the low-temperature plasticizing and pressure fluctuation of the molten material, shorten the product forming period and improve the production efficiency;
2. Because the glue passing ring 21 is clamped on the glue passing head 10, abrasion can be reduced, the glue passing ring 21 can rapidly move to be propped against the limiting ring 22 to seal the glue inlet 40, and the backflow of molten materials can be reduced, so that the weight and the size of a product are stable, and the precision of the injected product is improved.
The invention also provides a screw plasticizing device, which comprises a charging barrel, a screw, a heating element (generally a heating ring sleeved on the charging barrel) and the glue passing assembly, wherein one end of the glue passing head 10 far away from the head is connected with the front end of the screw.
According to the screw plasticizing device, the glue passing assembly is adopted, so that the melting materials can be thinned, the melting materials can be fully mixed and melted, meanwhile, the temperature of the melting materials can be reduced, the shaping cooling time can be reduced, and the production efficiency is improved.
The working principle of the screw plasticizing device of the invention is as follows:
Pre-plasticizing: the screw rod rotates to continuously push forward the materials falling into the screw groove from the material port, the heating ring transfers heat to the materials in the screw groove through the wall of the material cylinder, and the solid materials are plasticized and melted through the thermal process of each functional section of the screw rod under the double functions of external heating and screw rod rotation shearing;
Secondary plasticization: the molten material enters the channel 30 through the glue inlet 40 after being plasticized by the screw (the glue passing ring 21 is pushed away by the molten material in the screw groove to enable the glue inlet 40 to be opened), the molten material in the channel 30 is split and converged for multiple times by the bulge 11, so that the solid in the molten material is continuously thinned, the heat exchange area of the thinned solid is larger than that of the solid which is not thinned, meanwhile, the glue passing component drives the molten material in the channel 30 to continuously change the direction and the position in the flowing process along with the rotation of the screw, so that the molten material can rub with the inner wall of the glue passing ring 21 to generate heat, and the melting of the solid of the molten material is facilitated to be accelerated, so that the molten material is fully homogenized and melted to enable the molten material to be fully plasticized, and meanwhile, the solid in the molten material continuously absorbs the heat from the molten material in the melting process, so that the temperature of the molten material emitted by the glue passing component is lower, the shaping cooling time can be reduced, and the production efficiency can be improved;
metering: when the molten material in the storage chamber reaches the set capacity, a molten material back pressure is generated in the storage chamber, and the molten material back pressure pushes the rubber ring 21 to move to be propped against the limiting ring 22 so as to seal the rubber inlet 40, so that the molten material in the storage chamber is prevented from flowing back into the spiral groove through the channel 30, and metering is completed;
Injection: the screw rod moves forward rapidly under the action of the oil cylinder, and the melt in the storage chamber is injected into the die through the nozzle.
The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.
Claims (10)
1. The glue passing assembly capable of refining the molten material is characterized by comprising a glue passing head (10) and a non-return ring (20) sleeved on the glue passing head (10);
The glue passing head (10) comprises a head and a connecting end far away from the head, and the non-return ring is sleeved at the position of the head close to the glue passing head (10);
The non-return ring (20) comprises a glue passing ring (21) and a limiting ring (22) which are arranged one by one along the axial direction of the glue passing head (10), a channel (30) for the molten material to pass through is formed between the glue passing ring (21) and the glue passing head (10), and the glue passing ring (21) is arranged between the head of the glue passing head (10) and the limiting ring (22);
The glue passing ring (21) can move along the axial direction of the glue passing head (10), so that the glue passing ring (21) can move to form a glue inlet (40) for feeding molten material into the channel (30) between the glue passing ring and the limiting ring (22) and the glue passing ring (21) can move to prop against the limiting ring (22) to seal the glue inlet (40);
a plurality of protruding structures (11) are arranged in the middle of the channel (30) in a spacing mode, and the protruding structures (11) are used for crushing solids in the molten materials;
the head of the glue passing head (10) is provided with a glue outlet communicated with the channel (30).
2. A glue passing assembly according to claim 1, wherein the protruding structures (11) are arranged on the glue passing head (10), and each protruding structure (11) is arranged at intervals between the protruding structures and the inner wall of the glue passing ring (21) so that a gap is formed between the outer ring of the protruding structure (11) and the inner wall of the glue passing ring (21).
3. A glue passing assembly according to claim 1, wherein the raised structures (11) are provided with a plurality of turns, each turn of the raised structures (11) being arranged in sequence along the axial direction of the channel (30), and each turn of the raised structures (11) comprising a plurality of raised structures (11) arranged at intervals around the axial direction of the channel (30).
4. The glue passing assembly according to claim 1, wherein the front end of the glue passing ring (21) is axially movably clamped on the glue passing head (10), and the glue passing head (10), the glue passing ring (21) and the limiting ring (22) can synchronously rotate along with the screw.
5. The glue passing assembly according to claim 1, wherein the head of the glue passing head (10) is provided with a plurality of slots (12) axially distributed around the glue passing head, the front end of the glue passing ring (21) extends forwards to form a plurality of inserting parts (211), and each inserting part (211) is inserted into each slot (12) in a one-to-one correspondence manner to clamp the glue passing ring (21) on the glue passing head (10).
6. The glue passing assembly according to claim 5, wherein the glue outlet comprises a first glue outlet (50) formed by enclosing between the plug-in part (211) and the bottom wall of the slot (12), and the first glue outlet (50) is communicated with the channel (30).
7. The glue assembly of claim 6, wherein the first glue outlet (50) is disposed axially of the glue head (10) to enable the flow of the melt axially from the head of the glue head (10).
8. The glue passing assembly according to claim 5, wherein the head of the glue passing head (10) is further provided with a limiting end face (13), the front end of the glue passing ring (21) is further extended with a limiting protrusion (212) located between two adjacent plug-in parts (211), and the limiting protrusion (212) can abut against the limiting end face (13);
The glue outlet also comprises a second glue outlet (60) which is formed by enclosing between the front end of the limiting end face (13), the front end of the glue passing ring (21), the limiting bulge (212) and the inserting part (211) and communicated with the channel (30), so that materials can flow out from the second glue outlet (60) along the circumferential direction.
9. A plasticizing device, characterized by comprising a charging barrel, a screw, a heating element and the glue passing component capable of refining molten materials according to any one of claims 1-8, wherein the connecting end of the glue passing head (10) far away from the head is connected with the front end of the screw, and the glue passing head (10), the glue passing ring (21) and the limiting ring (22) can synchronously rotate along with the screw.
10. A plasticizing method of plasticizing a material by the plasticizing apparatus of claim 9, the plasticizing apparatus further comprising a storage chamber, the plasticizing method comprising the steps of:
S1, pre-plasticizing: the screw rod rotates to continuously push the solid materials falling into the screw groove from the material opening forwards, the heating ring transfers heat to the materials in the screw groove through the wall of the material cylinder, and the solid materials are plasticized and melted under the double functions of external heating and screw rod rotation shearing and pass through the thermal processes of all functional sections of the screw rod to form molten materials;
S2, secondary plasticization: the glue passing ring in the glue passing assembly is pushed away by the molten material in the screw groove to open the glue inlet, the molten material enters the channel of the glue passing assembly through the glue inlet after being plasticized by the screw rod, and the molten material in the channel is split and converged for a plurality of times by the convex structure, so that the solids in the molten material are continuously thinned, the glue passing assembly drives the molten material in the channel to continuously change the direction and the position in the flowing process along with the rotation of the screw rod, so that the molten material is fully homogenized and melted, the molten material is fully and secondarily plasticized, and the molten material flows into the storage chamber from the glue outlet after being secondarily plasticized in the channel;
S3, metering: when the molten material in the storage chamber reaches the set capacity, molten material back pressure is generated in the storage chamber, and the molten material back pressure pushes the rubber ring to move to be propped against the limiting ring to seal the rubber inlet, so that the molten material in the storage chamber is prevented from flowing back into the spiral groove through the channel, and metering is completed;
S4, injection: the screw rod moves forward rapidly under the action of the oil cylinder, and the melt in the storage chamber is injected into the die through the nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410347614.0A CN118003578A (en) | 2021-12-01 | 2021-12-01 | Glue passing assembly capable of refining melting stock, plasticizing device and plasticizing method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410347614.0A CN118003578A (en) | 2021-12-01 | 2021-12-01 | Glue passing assembly capable of refining melting stock, plasticizing device and plasticizing method |
| CN202111451556.9A CN114228073A (en) | 2021-12-01 | 2021-12-01 | Glue coating assembly and screw type plasticizing device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111451556.9A Division CN114228073A (en) | 2021-12-01 | 2021-12-01 | Glue coating assembly and screw type plasticizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
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| CN202111451556.9A Pending CN114228073A (en) | 2021-12-01 | 2021-12-01 | Glue coating assembly and screw type plasticizing device |
| CN202410347614.0A Pending CN118003578A (en) | 2021-12-01 | 2021-12-01 | Glue passing assembly capable of refining melting stock, plasticizing device and plasticizing method |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111451556.9A Pending CN114228073A (en) | 2021-12-01 | 2021-12-01 | Glue coating assembly and screw type plasticizing device |
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| CN (2) | CN114228073A (en) |
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| CN114228073A (en) | 2022-03-25 |
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